/* roulang page: index */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(10, 14, 20, 0.97);
            backdrop-filter: blur(16px);
            z-index: 999;
            padding: 16px;
            border-bottom: 1px solid var(--border-subtle);
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 1rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            background: rgba(255, 255, 255, 0.02);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-inner {
                height: 60px;
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .mobile-menu {
                top: 60px;
            }
        }

        /* ============ HERO SECTION ============ */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-deep);
            overflow: hidden;
            padding-top: 68px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            opacity: 0.35;
        }

        .hero-speed-lines {
            position: absolute;
            inset: 0;
            z-index: 1;
            background:
                repeating-linear-gradient(85deg, transparent, transparent 3px, rgba(0, 240, 255, 0.03) 3px, rgba(0, 240, 255, 0.03) 6px),
                repeating-linear-gradient(95deg, transparent, transparent 2px, rgba(123, 47, 190, 0.04) 2px, rgba(123, 47, 190, 0.04) 5px);
            animation: speedDrift 20s linear infinite;
        }

        @keyframes speedDrift {
            0% {
                transform: translateX(0) translateY(0);
            }
            50% {
                transform: translateX(-8px) translateY(-4px);
            }
            100% {
                transform: translateX(0) translateY(0);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 2;
            background: var(--gradient-overlay);
            opacity: 0.7;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 900px;
            padding: 40px 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.15);
            border: 1px solid rgba(0, 240, 255, 0.35);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .hero-title .highlight {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(123, 47, 190, 0.4);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            filter: brightness(1.18);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-secondary {
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 2px solid var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
        }

        .hero-image-card {
            position: relative;
            z-index: 3;
            margin-top: 40px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-subtle);
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
            animation: floatCard 6s ease-in-out infinite;
        }

        @keyframes floatCard {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        .hero-image-card img {
            width: 100%;
            display: block;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
                letter-spacing: 0;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
                max-width: 320px;
                margin: 0 auto;
            }
            .hero-image-card {
                margin-top: 28px;
                border-radius: var(--radius-lg);
            }
            .hero-section {
                min-height: auto;
                padding-bottom: 40px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 14px;
            }
        }

        /* ============ SECTION COMMONS ============ */
        section {
            padding: 80px 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(123, 47, 190, 0.2);
            color: #c9a0f0;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 700px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }

        /* ============ GROUP BUY SECTION ============ */
        .group-buy-section {
            background: var(--bg-card);
            position: relative;
        }

        .group-buy-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            opacity: 0.6;
        }

        .group-buy-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .gb-card {
            background: var(--bg-card-alt);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .gb-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .gb-card .gb-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 5px 12px;
            border-radius: 50px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .gb-card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .gb-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .gb-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .gb-card .gb-progress {
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.08);
            margin-bottom: 8px;
            overflow: hidden;
        }

        .gb-card .gb-progress-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--gradient-brand);
            transition: width var(--transition-smooth);
        }

        .gb-card .gb-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .gb-card .gb-meta span {
            color: var(--accent);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .group-buy-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .gb-card {
                padding: 20px 16px;
            }
        }

        /* ============ HOT DEALS ============ */
        .hot-deals-section {
            background: var(--bg-deep);
        }

        .hot-deals-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .deal-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .deal-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .deal-card .deal-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        .deal-card .deal-info {
            padding: 16px;
        }

        .deal-card .deal-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .deal-card .deal-info .deal-price {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
        }

        .deal-card .deal-info .deal-original {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-decoration: line-through;
            margin-left: 6px;
        }

        .deal-card .deal-info .deal-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(255, 94, 19, 0.2);
            color: #FF5E13;
            font-size: 0.7rem;
            font-weight: 600;
            margin-top: 6px;
        }

        @media (max-width: 1024px) {
            .hot-deals-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .hot-deals-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .deal-card .deal-info {
                padding: 10px;
            }
            .deal-card .deal-info h4 {
                font-size: 0.82rem;
            }
        }

        /* ============ SELLING POINTS ============ */
        .selling-points-section {
            background: var(--bg-card-alt);
        }

        .sp-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 28px;
        }

        .sp-card {
            background: var(--bg-deep);
            border-radius: var(--radius-xl);
            padding: 32px 24px;
            border: 1px solid var(--border-subtle);
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .sp-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
        }

        .sp-card .sp-icon-badge {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
        }

        .sp-card .sp-data-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .sp-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .sp-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .sp-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .sp-card {
                padding: 24px 16px;
            }
        }

        /* ============ SCENE DEMO ============ */
        .scene-demo-section {
            background: var(--bg-deep);
        }

        .scene-demo-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scene-demo-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }

        .scene-demo-img img {
            width: 100%;
            display: block;
        }

        .scene-demo-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .scene-demo-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .scene-specs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }

        .scene-spec {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .scene-demo-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scene-demo-text h3 {
                font-size: 1.4rem;
            }
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro-section {
            background: var(--bg-card);
            position: relative;
        }

        .brand-intro-row {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-visual {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            background: var(--gradient-brand);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 280px;
        }

        .brand-intro-visual .brand-logo-large {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 2px;
            text-align: center;
        }

        .brand-intro-text blockquote {
            font-size: 1.1rem;
            color: var(--text-primary);
            line-height: 1.85;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            margin: 0;
            background: rgba(255, 255, 255, 0.02);
            padding: 24px 28px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: normal;
        }

        @media (max-width: 768px) {
            .brand-intro-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .brand-intro-visual {
                min-height: 180px;
                padding: 28px;
            }
            .brand-intro-visual .brand-logo-large {
                font-size: 1.8rem;
            }
            .brand-intro-text blockquote {
                font-size: 0.95rem;
                padding: 16px 18px;
            }
        }

        /* ============ SOCIAL PROOF ============ */
        .social-proof-section {
            background: var(--bg-deep);
        }

        .proof-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 8px;
            scrollbar-width: none;
        }

        .proof-scroll::-webkit-scrollbar {
            display: none;
        }

        .proof-item {
            flex: 0 0 auto;
            scroll-snap-align: start;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            border: 1px solid var(--border-subtle);
            min-width: 180px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .proof-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .proof-item .proof-icon {
            font-size: 2rem;
            margin-bottom: 8px;
            color: var(--accent);
        }

        .proof-item .proof-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .proof-item .proof-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ============ DEEP CONTENT - TOURNAMENT ============ */
        .deep-content-section {
            background: var(--bg-card-alt);
        }

        .deep-content-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: start;
        }

        .deep-content-article h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .deep-content-article p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .spec-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .spec-table th,
        .spec-table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
        }
        .spec-table th {
            background: rgba(123, 47, 190, 0.2);
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .spec-table td {
            color: var(--text-secondary);
        }
        .spec-table tr:last-child td {
            border-bottom: none;
        }

        @media (max-width: 768px) {
            .deep-content-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content-article h3 {
                font-size: 1.3rem;
            }
        }

        /* ============ ACADEMY SECTION ============ */
        .academy-section {
            background: var(--bg-deep);
        }

        .academy-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 28px;
        }

        .academy-card {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }

        .academy-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .academy-card .academy-img {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .academy-card .academy-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .academy-card .academy-info .academy-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .academy-card .academy-info .academy-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .academy-card .btn-ghost-sm {
            margin-top: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-block;
        }
        .academy-card .btn-ghost-sm:hover {
            background: rgba(0, 240, 255, 0.1);
        }

        @media (max-width: 768px) {
            .academy-grid {
                grid-template-columns: 1fr;
            }
            .academy-card {
                flex-direction: column;
            }
            .academy-card .academy-img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }
        }

        /* ============ NEWS SECTION ============ */
        .news-section {
            background: var(--bg-card);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .news-card {
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .news-card .news-date-badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 50px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .news-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-card .news-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 10px;
            flex-grow: 1;
        }
        .news-card .btn-ghost-sm {
            align-self: flex-start;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .news-card .btn-ghost-sm:hover {
            background: rgba(0, 240, 255, 0.1);
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ TASK PROGRESS ============ */
        .task-progress-section {
            background: var(--bg-deep);
        }

        .task-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
            max-width: 700px;
        }

        .task-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .task-item:hover {
            border-color: var(--border-accent);
        }

        .task-item .task-check {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 2px solid var(--border-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--accent);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .task-item.completed .task-check {
            background: var(--gradient-brand);
            border-color: transparent;
            color: #fff;
        }

        .task-item .task-info {
            flex-grow: 1;
        }
        .task-item .task-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }
        .task-item .task-info .task-reward {
            font-size: 0.78rem;
            color: var(--accent);
        }
        .task-item .task-progress-bar {
            width: 80px;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
            flex-shrink: 0;
        }
        .task-item .task-progress-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--gradient-brand);
        }

        @media (max-width: 520px) {
            .task-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .task-item .task-progress-bar {
                width: 100%;
            }
        }

        /* ============ CHANNEL SELLING ============ */
        .channel-section {
            background: var(--bg-card-alt);
        }

        .channel-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            margin-top: 24px;
        }

        .channel-steps {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .channel-step {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            padding: 18px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }
        .channel-step:hover {
            border-color: var(--border-accent);
        }

        .channel-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .channel-step .step-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }
        .channel-step .step-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .channel-faq-mini {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .channel-faq-mini .cfm-item {
            background: var(--bg-deep);
            border-radius: var(--radius-lg);
            padding: 16px 18px;
            border: 1px solid var(--border-subtle);
        }
        .channel-faq-mini .cfm-item h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            margin: 0 0 6px;
        }
        .channel-faq-mini .cfm-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .channel-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ============ FAQ SECTION ============ */
        .faq-section {
            background: var(--bg-deep);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }
        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.08);
        }

        .faq-question {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
        }
        .faq-question .q-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            margin-right: 10px;
            flex-shrink: 0;
        }
        .faq-question .faq-arrow {
            transition: transform var(--transition-fast);
            font-size: 0.9rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ============ OPEN GROUP CTA ============ */
        .open-group-section {
            background: var(--bg-card);
            text-align: center;
            padding: 60px 0;
        }

        .open-group-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 40px;
        }

        /* ============ FIXED BOTTOM BAR ============ */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-subtle);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .fixed-bottom-bar .bar-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .fixed-bottom-bar .btn-primary {
            padding: 10px 24px;
            font-size: 0.9rem;
        }

        @media (max-width: 520px) {
            .fixed-bottom-bar {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
                text-align: center;
            }
            .fixed-bottom-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #080b10;
            padding: 48px 0 24px;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: block;
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent);
            font-size: 0.8rem;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-footer {
                padding-bottom: 80px;
            }
        }

        /* ============ UTILITY ============ */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }

        body.has-fixed-bar {
            padding-bottom: 80px;
        }

        @media (max-width: 520px) {
            body.has-fixed-bar {
                padding-bottom: 100px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 68px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin-top: 0;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(10, 14, 20, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 24px;
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
        }

        .mobile-menu.open {
            display: flex;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            .nav-links a .nav-icon {
                font-size: 0.75rem;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-inner {
                height: 60px;
                padding: 0 16px;
            }
            body {
                padding-top: 60px;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* ============ PAGE HERO ============ */
        .page-hero {
            position: relative;
            background: var(--bg-deep);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 60px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-overlay);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 240, 255, 0.2) 0%, transparent 60%);
            z-index: 2;
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
        }

        .page-hero-content h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .page-hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto 20px;
            line-height: 1.7;
        }

        .hero-badge-row {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            color: var(--accent);
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 50px 0 36px;
            }
            .page-hero-content h1 {
                font-size: 2rem;
            }
            .page-hero-content .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* ============ MAIN CONTENT AREA ============ */
        .main-content {
            padding: 60px 0;
        }

        .asymmetric-grid {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 32px;
            align-items: start;
        }

        .wide-col {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .narrow-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: 88px;
        }

        /* ============ FEATURED TEAM CARD ============ */
        .featured-team-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .featured-team-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-2px);
        }

        .featured-team-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 320px;
        }

        .featured-team-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-team-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .featured-team-card .card-img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(11, 14, 20, 0.95) 0%, rgba(11, 14, 20, 0.4) 60%, transparent 100%);
            padding: 40px 24px 20px;
        }

        .featured-team-card .card-badge {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 50px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .featured-team-card .card-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .featured-team-card .card-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .featured-team-card .card-body {
            padding: 24px;
        }

        .featured-team-card .card-body p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        .featured-team-card .stat-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .featured-team-card .stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-card-alt);
            border: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        .featured-team-card .stat-item i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        .featured-team-card .stat-item .stat-val {
            color: var(--accent);
            font-weight: 700;
            font-size: 1rem;
        }

        /* ============ SIDE LIST ============ */
        .side-list-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .side-list-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-list-card h3 i {
            color: var(--accent);
        }

        .side-list-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .side-list-item:last-child {
            border-bottom: none;
        }

        .side-list-item:hover {
            padding-left: 6px;
        }

        .side-list-item .list-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-card-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1rem;
            color: var(--accent);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .side-list-item:hover .list-icon {
            border-color: var(--border-accent);
            background: rgba(0, 240, 255, 0.06);
        }

        .side-list-item .list-info {
            flex: 1;
            min-width: 0;
        }

        .side-list-item .list-info .list-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .side-list-item .list-info .list-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .side-list-item .list-arrow {
            color: var(--text-muted);
            font-size: 0.7rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .side-list-item:hover .list-arrow {
            color: var(--accent);
            transform: translateX(3px);
        }

        /* ============ TEAM GRID CARDS ============ */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .team-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .team-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .team-card .team-img {
            height: 200px;
            overflow: hidden;
        }

        .team-card .team-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .team-card:hover .team-img img {
            transform: scale(1.05);
        }

        .team-card .team-info {
            padding: 20px;
        }

        .team-card .team-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .team-card .team-info .team-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 50px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .team-card .team-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        @media (max-width: 640px) {
            .team-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ DEEP CONTENT SECTION ============ */
        .deep-section {
            background: var(--bg-card-alt);
            border-radius: var(--radius-xl);
            padding: 40px;
            border: 1px solid var(--border-subtle);
            margin-top: 32px;
        }

        .deep-section h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .deep-section h2 i {
            color: var(--accent);
            font-size: 1.5rem;
        }

        .deep-section p {
            color: var(--text-secondary);
            line-height: 1.85;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        .deep-section .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .deep-section .highlight-list li {
            padding: 12px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
        }

        .deep-section .highlight-list li:hover {
            border-color: var(--border-accent);
            background: rgba(0, 240, 255, 0.03);
        }

        .deep-section .highlight-list li i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        @media (max-width: 640px) {
            .deep-section .highlight-list {
                grid-template-columns: 1fr;
            }
            .deep-section {
                padding: 24px;
            }
        }

        /* ============ HONOR SECTION ============ */
        .honor-scroll {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }

        .honor-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .honor-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .honor-card .honor-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .honor-card .honor-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .honor-card .honor-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .honor-scroll {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .honor-scroll {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            margin-top: 48px;
        }

        .faq-section h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-section h2 i {
            color: var(--accent);
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.12);
        }

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
            transition: all var(--transition-fast);
        }

        .faq-question .q-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.9rem;
            margin: 0;
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            margin-top: 48px;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.08);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            display: inline-block;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(123, 47, 190, 0.4);
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        /* ============ BOTTOM FIXED BAR ============ */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            transition: all var(--transition-smooth);
        }

        .bottom-fixed-bar .bar-text {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .bottom-fixed-bar .bar-btn {
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.4);
            white-space: nowrap;
        }

        .bottom-fixed-bar .bar-btn:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
        }

        @media (max-width: 520px) {
            .bottom-fixed-bar {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
            }
            .bottom-fixed-bar .bar-btn {
                width: 100%;
                text-align: center;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-card-alt);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 20px;
            margin-top: 60px;
            margin-bottom: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-col p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ RESPONSIVE MAIN GRID ============ */
        @media (max-width: 900px) {
            .asymmetric-grid {
                grid-template-columns: 1fr;
            }
            .narrow-col {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .narrow-col .side-list-card {
                grid-column: span 1;
            }
        }
        @media (max-width: 520px) {
            .narrow-col {
                grid-template-columns: 1fr;
            }
            .container-custom {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .featured-team-card .card-img-wrap {
                height: 200px;
            }
            .featured-team-card .card-title {
                font-size: 1.3rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 68px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin: 0 0 0.6em;
            color: var(--text-primary);
        }

        h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }

        p {
            margin: 0 0 1em;
            line-height: 1.8;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(10, 14, 20, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 16px 24px;
            gap: 4px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            display: block;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
        }

        .mobile-menu.open {
            display: flex;
        }

        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.82rem;
                gap: 4px;
            }
            .nav-links a .nav-icon {
                font-size: 0.75rem;
                width: 16px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-inner {
                height: 60px;
            }
            body {
                padding-top: 60px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .nav-inner {
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
        }

        /* ============ CATEGORY HERO ============ */
        .category-hero {
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-overlay);
            opacity: 0.08;
            pointer-events: none;
            z-index: 0;
        }

        .category-hero .container-custom {
            position: relative;
            z-index: 1;
        }

        .category-hero-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero-text h1 {
            font-size: 2.6rem;
            margin-bottom: 0.3em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 1.5em;
            line-height: 1.7;
        }

        .group-buy-box {
            background: var(--bg-card-alt);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 24px 28px;
            flex: 0 0 340px;
            min-width: 300px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .group-buy-box .group-count {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 4px;
        }

        .group-buy-box .group-count-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .group-buy-box .group-progress {
            height: 6px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 3px;
            margin-bottom: 20px;
            overflow: hidden;
        }

        .group-buy-box .group-progress-fill {
            height: 100%;
            background: var(--gradient-brand);
            border-radius: 3px;
            width: 68%;
            transition: width var(--transition-smooth);
        }

        .group-buy-box .group-btns {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-primary {
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: none;
        }

        .btn-primary:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-secondary {
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1.5px solid var(--accent);
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 20px;
            }
            .group-buy-box {
                flex: 1 1 auto;
                width: 100%;
                min-width: auto;
            }
            .category-hero-text h1 {
                font-size: 2rem;
            }
            .category-hero-text .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* ============ FEATURED REVIEW CARD ============ */
        .featured-review-section {
            padding: 48px 0 32px;
        }

        .featured-review-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-wrap: wrap;
        }

        .featured-review-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .featured-review-img {
            flex: 1 1 50%;
            min-width: 300px;
            position: relative;
            overflow: hidden;
        }

        .featured-review-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
            transition: transform var(--transition-smooth);
        }

        .featured-review-card:hover .featured-review-img img {
            transform: scale(1.03);
        }

        .featured-review-img .badge-top {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--gradient-brand);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(123, 47, 190, 0.4);
        }

        .featured-review-img .badge-score {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(0, 0, 0, 0.75);
            color: var(--accent);
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            z-index: 2;
            border: 1px solid var(--border-accent);
            letter-spacing: 0.5px;
            backdrop-filter: blur(6px);
        }

        .featured-review-body {
            flex: 1 1 50%;
            min-width: 300px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 14px;
        }

        .featured-review-body .review-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .featured-review-body .review-meta .meta-tag {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 500;
        }

        .featured-review-body h2 {
            font-size: 1.7rem;
            margin: 0;
            line-height: 1.35;
        }

        .featured-review-body .review-excerpt {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .featured-review-body .review-stats {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .featured-review-body .stat-item {
            text-align: center;
            background: var(--bg-card-alt);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            min-width: 70px;
        }

        .featured-review-body .stat-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .featured-review-body .stat-label {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .featured-review-card {
                flex-direction: column;
            }
            .featured-review-img {
                flex: 1 1 auto;
                min-width: auto;
            }
            .featured-review-img img {
                min-height: 220px;
                max-height: 280px;
            }
            .featured-review-body {
                padding: 20px;
                min-width: auto;
            }
            .featured-review-body h2 {
                font-size: 1.4rem;
            }
        }

        /* ============ REVIEW GRID ============ */
        .review-grid-section {
            padding: 32px 0 48px;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            margin: 0;
            font-size: 1.8rem;
        }

        .section-header .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .section-header .filter-tag {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            cursor: pointer;
            background: var(--bg-card);
            color: var(--text-secondary);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .section-header .filter-tag:hover,
        .section-header .filter-tag.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            border-color: var(--border-accent);
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .review-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .review-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .review-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .review-card:hover .review-card-img img {
            transform: scale(1.04);
        }

        .review-card-img .badge-score-sm {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.8);
            color: var(--accent);
            padding: 5px 10px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            z-index: 2;
            border: 1px solid var(--border-accent);
            backdrop-filter: blur(4px);
        }

        .review-card-img .badge-category {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--gradient-brand);
            color: #fff;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.4px;
        }

        .review-card-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .review-card-body h3 {
            font-size: 1.1rem;
            margin: 0;
            line-height: 1.4;
            font-weight: 600;
        }

        .review-card-body .review-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .review-card-body .review-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 8px;
        }

        .review-card-body .card-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .btn-ghost-sm {
            padding: 6px 14px;
            border-radius: 20px;
            background: transparent;
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-accent);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .btn-ghost-sm:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
        }

        @media (max-width: 768px) {
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .review-card-body h3 {
                font-size: 1rem;
            }
        }

        /* ============ COMPARISON TABLE ============ */
        .comparison-section {
            padding: 40px 0 48px;
            background: var(--bg-card-alt);
            border-radius: var(--radius-xl);
            margin: 0 0 48px;
        }

        .comparison-section .container-custom {
            padding: 0 32px;
        }

        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin-top: 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }

        .comparison-table thead th {
            background: var(--bg-deep);
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--accent);
            border-bottom: 2px solid var(--border-accent);
            white-space: nowrap;
            font-size: 0.85rem;
            letter-spacing: 0.3px;
        }

        .comparison-table tbody td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .comparison-table tbody tr {
            transition: background var(--transition-fast);
        }

        .comparison-table tbody tr:hover {
            background: rgba(0, 240, 255, 0.04);
        }

        .comparison-table .td-highlight {
            color: var(--accent);
            font-weight: 600;
        }

        .comparison-table .td-badge {
            display: inline-block;
            background: var(--gradient-brand);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .comparison-section {
                border-radius: var(--radius-lg);
                padding: 24px 0 32px;
                margin: 0 0 32px;
            }
            .comparison-section .container-custom {
                padding: 0 16px;
            }
            .comparison-table {
                font-size: 0.8rem;
                min-width: 600px;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 40px 0 48px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.08);
        }

        .faq-question {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
        }

        .faq-question .faq-q-badge {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: #fff;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px 0 64px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px 64px;
        }

        @media (max-width: 520px) {
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 0 52px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px 52px;
            }
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 48px 0;
            text-align: center;
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            border: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: var(--gradient-overlay);
            opacity: 0.06;
            pointer-events: none;
            z-index: 0;
        }

        .cta-card>* {
            position: relative;
            z-index: 1;
        }

        .cta-card h2 {
            font-size: 2rem;
            margin-bottom: 0.5em;
        }

        .cta-card p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto 1.5em;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .cta-card {
                padding: 32px 20px;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
        }

        /* ============ BOTTOM FIXED BAR ============ */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-subtle);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bottom-fixed-bar .bar-text {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .bottom-fixed-bar .btn-primary {
            padding: 10px 24px;
            font-size: 0.9rem;
        }

        @media (max-width: 520px) {
            .bottom-fixed-bar {
                padding: 8px 16px;
                gap: 10px;
                flex-direction: column;
            }
            .bottom-fixed-bar .bar-text {
                font-size: 0.85rem;
            }
            .bottom-fixed-bar .btn-primary {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-bottom: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            color: var(--accent);
            margin-bottom: 14px;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
            line-height: 1.6;
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .footer-col p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-links span {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .site-footer {
                margin-bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 20px;
                margin-bottom: 90px;
            }
        }

        /* ============ UTILITY ============ */
        .text-accent {
            color: var(--accent);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .text-center {
            text-align: center;
        }

/* roulang page: category2 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 68px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 8px 12px;
            border-radius: var(--radius-md);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.8rem;
            width: 16px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--border-accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(10, 14, 20, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 16px;
            gap: 4px;
            border-top: 1px solid var(--border-subtle);
            max-height: 60vh;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            background: transparent;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
        }

        /* ============ PAGE HERO ============ */
        .page-hero {
            position: relative;
            background: var(--bg-deep);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 60px 0 50px;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-overlay);
            opacity: 0.55;
            z-index: 1;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            filter: saturate(0.6) brightness(0.35);
        }

        .page-hero .speed-lines {
            position: absolute;
            inset: 0;
            z-index: 0;
            opacity: 0.3;
            background: repeating-linear-gradient(85deg,
                    transparent,
                    transparent 3px,
                    rgba(0, 240, 255, 0.06) 3px,
                    rgba(0, 240, 255, 0.06) 4px);
            animation: speedScroll 8s linear infinite;
        }

        @keyframes speedScroll {
            0% {
                background-position: 0 0;
            }
            100% {
                background-position: 200px 0;
            }
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 240, 255, 0.25);
        }

        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin: 0 0 14px;
            line-height: 1.2;
        }

        .page-hero h1 .accent-text {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            max-width: 600px;
            line-height: 1.6;
        }

        /* ============ GROUP BUY HERO SECTION ============ */
        .group-buy-panel {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 28px 32px;
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            max-width: 700px;
            box-shadow: var(--shadow-card);
        }

        .group-buy-panel .group-avatar-stack {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .group-buy-panel .avatar-dot {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--bg-card);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            margin-right: -10px;
            position: relative;
            z-index: 1;
        }

        .group-buy-panel .avatar-dot:nth-child(2) {
            z-index: 2;
            background: linear-gradient(135deg, #FF5E13, #FF8C42);
        }
        .group-buy-panel .avatar-dot:nth-child(3) {
            z-index: 3;
            background: linear-gradient(135deg, #00C9A7, #00E5C9);
        }
        .group-buy-panel .avatar-dot:nth-child(4) {
            z-index: 4;
            background: linear-gradient(135deg, #FFD700, #FFA500);
        }
        .group-buy-panel .avatar-dot.avatar-count {
            z-index: 5;
            background: var(--bg-card-alt);
            border: 2px dashed var(--accent);
            color: var(--accent);
            font-size: 0.7rem;
        }

        .group-buy-panel .group-info {
            flex: 1;
            min-width: 180px;
        }

        .group-buy-panel .group-info .group-count {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .group-buy-panel .group-info .group-count span {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
        }

        .group-buy-panel .group-info .group-remaining {
            font-size: 0.85rem;
            color: #FF8C42;
            margin-top: 4px;
            font-weight: 500;
        }

        .group-buy-panel .group-btns {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.4);
            white-space: nowrap;
            border: none;
        }

        .btn-primary:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            border: 2px solid var(--border-accent);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
            transform: translateY(-2px);
        }

        /* ============ SECTION STYLES ============ */
        .section {
            padding: 60px 0;
        }

        .section-alt {
            background: var(--bg-card-alt);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0 0 32px;
            line-height: 1.6;
        }

        .section-header {
            margin-bottom: 36px;
        }

        /* ============ SELLING POINTS ============ */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .sp-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .sp-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .sp-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .sp-card:hover::before {
            opacity: 1;
        }

        .sp-card .sp-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .sp-card .sp-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 10px;
            border-radius: 14px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .sp-card h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .sp-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ============ ASYMMETRIC 2-COLUMN LAYOUT ============ */
        .asymmetric-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 24px;
            align-items: start;
        }

        .featured-review-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
        }

        .featured-review-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .featured-review-card .review-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-card-alt);
        }

        .featured-review-card .review-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-review-card:hover .review-img-wrap img {
            transform: scale(1.04);
        }

        .featured-review-card .review-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: 14px;
            background: rgba(0, 0, 0, 0.7);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(0, 240, 255, 0.3);
            z-index: 2;
        }

        .featured-review-card .review-score {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.5);
        }

        .featured-review-card .review-body {
            padding: 20px 22px;
        }

        .featured-review-card .review-body h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .featured-review-card .review-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0 0 12px;
            line-height: 1.65;
        }

        .featured-review-card .review-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .featured-review-card .review-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .review-list-sidebar {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .review-list-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-list-item:hover {
            border-color: var(--border-accent);
            background: var(--bg-card-alt);
            box-shadow: 0 2px 14px rgba(0, 240, 255, 0.08);
        }

        .review-list-item .rl-date-badge {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            line-height: 1;
            color: var(--accent);
            font-size: 0.8rem;
        }

        .review-list-item .rl-date-badge .rl-day {
            font-size: 1.1rem;
        }

        .review-list-item .rl-info {
            flex: 1;
            min-width: 0;
        }

        .review-list-item .rl-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 3px;
            line-height: 1.3;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .review-list-item .rl-info .rl-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .review-list-item .rl-arrow {
            flex-shrink: 0;
            color: var(--text-muted);
            font-size: 0.8rem;
            transition: all var(--transition-fast);
        }

        .review-list-item:hover .rl-arrow {
            color: var(--accent);
            transform: translateX(3px);
        }

        /* ============ HOT GEAR CARDS ============ */
        .hot-gear-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .hot-gear-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
        }

        .hot-gear-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .hot-gear-card .gear-img-wrap {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: var(--bg-card-alt);
            position: relative;
        }

        .hot-gear-card .gear-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .hot-gear-card:hover .gear-img-wrap img {
            transform: scale(1.06);
        }

        .hot-gear-card .gear-rank-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            z-index: 2;
            box-shadow: 0 2px 10px rgba(123, 47, 190, 0.5);
        }

        .hot-gear-card .gear-info {
            padding: 14px 16px;
        }

        .hot-gear-card .gear-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
            line-height: 1.3;
        }

        .hot-gear-card .gear-info .gear-price {
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 700;
        }

        .hot-gear-card .gear-info .gear-rating {
            font-size: 0.78rem;
            color: #FFD700;
            margin-top: 2px;
        }

        /* ============ STATS BANNER ============ */
        .stats-banner {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 32px;
            border: 1px solid var(--border-subtle);
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-around;
            text-align: center;
        }

        .stats-banner .stat-item {
            flex: 1;
            min-width: 140px;
        }

        .stats-banner .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stats-banner .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ============ SCENE DEMO ============ */
        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scene-demo-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            aspect-ratio: 16 / 11;
            background: var(--bg-card-alt);
            border: 1px solid var(--border-subtle);
        }

        .scene-demo-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scene-demo-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .scene-demo-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 16px;
        }

        .scene-demo-text .spec-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .scene-demo-text .spec-list li {
            background: rgba(0, 240, 255, 0.06);
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 500;
            border: 1px solid rgba(0, 240, 255, 0.15);
            white-space: nowrap;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.2);
        }

        .faq-item .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-item .faq-question .faq-q-badge {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: #fff;
        }

        .faq-item .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px 22px;
        }

        .faq-item .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ============ BOTTOM FIXED CTA ============ */
        .bottom-fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-subtle);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .bottom-fixed-cta .cta-text {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .bottom-fixed-cta .btn-primary {
            padding: 10px 28px;
            font-size: 0.9rem;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-card-alt);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-bottom: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 32px;
        }

        .footer-col .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .footer-col p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .footer-links span {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

        .footer-links a {
            color: var(--accent);
            font-size: 0.78rem;
        }

        .footer-links a:hover {
            text-decoration: underline;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1200px) {
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.8rem;
                gap: 3px;
            }
            .nav-links a .nav-icon {
                font-size: 0.7rem;
                width: 14px;
            }
            .hot-gear-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 7px 8px;
                font-size: 0.75rem;
                gap: 2px;
            }
            .nav-links a .nav-icon {
                font-size: 0.65rem;
                width: 12px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .asymmetric-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .selling-points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-gear-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .group-buy-panel {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .stats-banner {
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .page-hero {
                min-height: 340px;
                padding: 40px 0 30px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
            .selling-points-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .hot-gear-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stats-banner {
                flex-direction: column;
                gap: 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .group-buy-panel .group-btns {
                flex-direction: column;
                width: 100%;
            }
            .group-buy-panel .group-btns .btn-primary,
            .group-buy-panel .group-btns .btn-secondary {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .bottom-fixed-cta {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
            }
            .bottom-fixed-cta .btn-primary {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links {
                justify-content: center;
            }
            .featured-review-card .review-body h3 {
                font-size: 1.15rem;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 12px;
            }
            .nav-inner {
                padding: 0 12px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .hot-gear-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .hot-gear-card .gear-info h4 {
                font-size: 0.8rem;
            }
            .group-buy-panel {
                padding: 18px 16px;
            }
            .sp-card {
                padding: 20px 16px;
            }
            .review-list-item {
                padding: 12px 14px;
                gap: 8px;
            }
            .review-list-item .rl-date-badge {
                width: 36px;
                height: 36px;
                font-size: 0.7rem;
            }
            .review-list-item .rl-info h4 {
                font-size: 0.85rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .desktop-only {
            display: inline-block;
        }

        .hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(10, 14, 20, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-subtle);
            padding: 12px 16px;
            gap: 4px;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            background: transparent;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
        }

        .mobile-menu.open {
            display: flex;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-inner {
                height: 60px;
            }
        }

        @media (max-width: 640px) {
            .nav-inner {
                padding: 0 12px;
                height: 56px;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

        /* ============ PAGE HERO (Small Hero) ============ */
        .page-hero {
            position: relative;
            margin-top: 68px;
            padding: 60px 0 50px;
            background: var(--bg-deep);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-overlay);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 240, 255, 0.15) 0%, transparent 60%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            background: rgba(0, 240, 255, 0.18);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 240, 255, 0.25);
        }

        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }

        .page-hero h1 .accent-text {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

        /* Flash Sale Bar */
        .flash-sale-bar {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            background: var(--bg-card-alt);
            border-radius: var(--radius-lg);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            gap: 24px;
            border: 1px solid var(--border-subtle);
            flex-wrap: wrap;
            justify-content: center;
            box-shadow: var(--shadow-card);
        }

        .flash-countdown {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .flash-countdown .countdown-label {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .flash-countdown .countdown-timer {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .countdown-timer .time-block {
            background: var(--bg-deep);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            font-family: 'Inter', 'Roboto', monospace;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent);
            min-width: 38px;
            text-align: center;
            letter-spacing: 1px;
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .countdown-timer .time-sep {
            color: var(--accent);
            font-weight: 700;
            font-size: 1.1rem;
        }

        .flash-sale-bar .flash-info {
            flex: 1;
            min-width: 180px;
        }

        .flash-sale-bar .flash-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin: 0 0 4px;
            font-family: var(--font-heading);
        }

        .flash-sale-bar .flash-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        .flash-sale-bar .flash-cta {
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            flex-shrink: 0;
            letter-spacing: 0.5px;
        }

        .flash-sale-bar .flash-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .page-hero {
                margin-top: 60px;
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .flash-sale-bar {
                flex-direction: column;
                text-align: center;
                padding: 18px 16px;
                gap: 14px;
                border-radius: var(--radius-md);
            }
            .flash-sale-bar .flash-cta {
                width: 100%;
                text-align: center;
            }
            .flash-countdown {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                margin-top: 56px;
                padding: 32px 0 28px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .countdown-timer .time-block {
                font-size: 1.1rem;
                min-width: 32px;
                padding: 5px 8px;
            }
        }

        /* ============ FEATURED TOP CARD ============ */
        .featured-card-section {
            padding: 60px 0 40px;
        }

        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            min-height: 360px;
        }

        .featured-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .featured-card .featured-img {
            position: relative;
            overflow: hidden;
            min-height: 320px;
        }

        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-card:hover .featured-img img {
            transform: scale(1.04);
        }

        .featured-card .featured-img .img-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            z-index: 2;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
        }

        .featured-card .featured-body {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }

        .featured-card .featured-body .tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .featured-card .featured-body .tag {
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
            border: 1px solid rgba(0, 240, 255, 0.2);
        }

        .featured-card .featured-body h2 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .featured-card .featured-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        .featured-card .featured-body .featured-meta {
            display: flex;
            gap: 20px;
            align-items: center;
            flex-wrap: wrap;
        }

        .featured-card .featured-body .meta-stat {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .featured-card .featured-body .meta-stat i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        .featured-card .featured-body .btn-featured {
            align-self: flex-start;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.4px;
            box-shadow: 0 4px 14px rgba(123, 47, 190, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .featured-card .featured-body .btn-featured:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .featured-card {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .featured-card .featured-img {
                min-height: 220px;
                max-height: 280px;
            }
            .featured-card .featured-body {
                padding: 22px 18px;
            }
            .featured-card .featured-body h2 {
                font-size: 1.35rem;
            }
            .featured-card-section {
                padding: 36px 0 24px;
            }
        }

        /* ============ TWO-COLUMN GRID ============ */
        .grid-section {
            padding: 40px 0 60px;
        }

        .grid-section .section-header {
            margin-bottom: 32px;
        }

        .grid-section .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }

        .grid-section .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin: 0;
            line-height: 1.6;
        }

        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .training-grid .grid-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
        }

        .training-grid .grid-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .training-grid .grid-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .training-grid .grid-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .training-grid .grid-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .training-grid .grid-card .card-img-wrap .difficulty-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.4px;
            z-index: 2;
            background: rgba(11, 14, 20, 0.85);
            color: var(--accent);
            border: 1px solid rgba(0, 240, 255, 0.3);
            backdrop-filter: blur(4px);
        }

        .training-grid .grid-card .card-body {
            padding: 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .training-grid .grid-card .card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.35;
            letter-spacing: -0.2px;
        }

        .training-grid .grid-card .card-body .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        .training-grid .grid-card .card-body .card-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .training-grid .grid-card .card-body .card-stat {
            font-size: 0.8rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .training-grid .grid-card .card-body .card-stat i {
            color: var(--accent);
            font-size: 0.75rem;
        }

        .training-grid .grid-card .card-body .btn-card {
            align-self: flex-start;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-accent);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            background: transparent;
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .training-grid .grid-card .card-body .btn-card:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
        }

        @media (max-width: 768px) {
            .training-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .training-grid .grid-card .card-img-wrap {
                height: 180px;
            }
            .grid-section .section-header h2 {
                font-size: 1.5rem;
            }
            .grid-section {
                padding: 28px 0 40px;
            }
        }

        @media (max-width: 520px) {
            .training-grid .grid-card .card-img-wrap {
                height: 160px;
            }
            .training-grid .grid-card .card-body {
                padding: 16px 14px;
            }
            .training-grid .grid-card .card-body h3 {
                font-size: 1.05rem;
            }
        }

        /* ============ TRAINING METHODOLOGY ============ */
        .methodology-section {
            padding: 60px 0;
            background: var(--bg-card-alt);
            position: relative;
        }

        .methodology-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--gradient-brand);
            opacity: 0.5;
        }

        .methodology-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .methodology-section .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }

        .methodology-section .section-header .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin: 0;
        }

        .methodology-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .methodology-steps .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            counter-increment: step;
        }

        .methodology-steps .step-card::before {
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 3;
            box-shadow: 0 4px 14px rgba(123, 47, 190, 0.4);
        }

        .methodology-steps .step-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .methodology-steps .step-card .step-icon {
            font-size: 2rem;
            margin: 8px 0 12px;
            color: var(--accent);
        }

        .methodology-steps .step-card h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .methodology-steps .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .methodology-steps {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .methodology-steps .step-card {
                padding: 24px 16px;
            }
            .methodology-section {
                padding: 44px 0;
            }
            .methodology-section .section-header h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .methodology-steps {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .methodology-steps .step-card::before {
                top: -14px;
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
        }

        /* ============ STATS BANNER ============ */
        .stats-banner {
            padding: 50px 0;
            background: var(--bg-deep);
            position: relative;
        }

        .stats-banner .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stats-banner .stat-item {
            padding: 24px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
        }

        .stats-banner .stat-item:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .stats-banner .stat-number {
            font-family: 'Inter', 'Roboto', var(--font-heading);
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
            margin: 0 0 6px;
            line-height: 1.1;
        }

        .stats-banner .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .stats-banner .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-banner .stat-number {
                font-size: 2rem;
            }
            .stats-banner {
                padding: 36px 0;
            }
        }

        @media (max-width: 520px) {
            .stats-banner .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stats-banner .stat-number {
                font-size: 1.6rem;
            }
            .stats-banner .stat-item {
                padding: 18px 12px;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-card-alt);
            position: relative;
        }

        .faq-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .faq-section .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }

        .faq-section .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin: 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }

        .faq-item .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            font-family: var(--font-heading);
            letter-spacing: -0.2px;
            user-select: none;
        }

        .faq-item .faq-question .q-badge {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .faq-item .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--accent);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-item .faq-answer p {
            margin: 0;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .faq-section {
                padding: 44px 0;
            }
            .faq-section .section-header h2 {
                font-size: 1.5rem;
            }
            .faq-item .faq-question {
                padding: 15px 16px;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 15px;
            }
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 60px 0;
            background: var(--bg-deep);
            position: relative;
        }

        .cta-section .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .cta-section .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(0, 240, 255, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-section .cta-card h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.3px;
        }

        .cta-section .cta-card p {
            color: var(--text-muted);
            font-size: 1rem;
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .cta-card .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 20px rgba(123, 47, 190, 0.4);
        }

        .cta-section .cta-card .btn-cta-large:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 0;
            }
            .cta-section .cta-card {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section .cta-card h2 {
                font-size: 1.5rem;
            }
            .cta-section .cta-card .btn-cta-large {
                padding: 12px 28px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 20px;
            color: var(--text-secondary);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-col .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .site-footer .footer-col p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            padding: 2px 0;
        }

        .site-footer .footer-col a:hover {
            color: var(--accent);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .site-footer .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .site-footer .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .site-footer .footer-bottom .footer-links a:hover {
            color: var(--accent);
        }

        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 36px 0 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .site-footer .footer-bottom .footer-links {
                justify-content: center;
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ============ BOTTOM STICKY BAR ============ */
        .bottom-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .bottom-sticky-bar .sticky-text {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            letter-spacing: 0.4px;
            white-space: nowrap;
        }

        .bottom-sticky-bar .btn-sticky {
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            white-space: nowrap;
        }

        .bottom-sticky-bar .btn-sticky:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        @media (max-width: 520px) {
            .bottom-sticky-bar {
                padding: 8px 16px;
                gap: 10px;
            }
            .bottom-sticky-bar .sticky-text {
                font-size: 0.85rem;
            }
            .bottom-sticky-bar .btn-sticky {
                padding: 10px 20px;
                font-size: 0.85rem;
                width: 100%;
                text-align: center;
            }
        }

        body {
            padding-bottom: 70px;
        }

        @media (max-width: 520px) {
            body {
                padding-bottom: 80px;
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

/* roulang page: category6 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .desktop-only {
            display: inline-block;
        }

        .hamburger {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(15, 20, 30, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 12px 24px;
            gap: 4px;
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
        }

        .mobile-menu.open {
            display: flex;
        }

        /* ============ PAGE HERO (SMALL) ============ */
        .page-hero {
            position: relative;
            background: var(--gradient-overlay), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            margin-top: 68px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            padding: 40px 24px;
        }

        .page-hero-content h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin: 0 0 12px;
            line-height: 1.25;
        }

        .page-hero-content h1 .accent-text {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero-content .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin: 0;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .page-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        /* ============ STATS ROW ============ */
        .stats-row {
            padding: 40px 0;
            margin-top: -30px;
            position: relative;
            z-index: 3;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .stat-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .stat-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .stat-card:hover::after {
            opacity: 1;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }

        .stat-icon-mini {
            display: inline-block;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            line-height: 40px;
            text-align: center;
            margin-bottom: 10px;
            font-size: 1.1rem;
            color: var(--accent);
        }

        /* ============ MAIN CONTENT AREA ============ */
        .community-main {
            padding: 40px 0 80px;
        }

        .community-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 32px;
            align-items: flex-start;
        }

        /* ============ SIDEBAR - TAG CLOUD ============ */
        .sidebar-tags {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 28px 22px;
            border: 1px solid var(--border-subtle);
            position: sticky;
            top: 88px;
        }

        .sidebar-tags h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 20px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-tags h3 i {
            color: var(--accent);
            font-size: 1rem;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            background: var(--bg-card-alt);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .tag-item:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.12);
            transform: translateY(-2px);
        }

        .tag-item.tag-hot {
            background: rgba(123, 47, 190, 0.2);
            border-color: rgba(123, 47, 190, 0.5);
            color: #c9a0ff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 18px;
        }

        .tag-item.tag-featured {
            background: rgba(0, 240, 255, 0.12);
            border-color: rgba(0, 240, 255, 0.4);
            color: var(--accent);
            font-weight: 600;
        }

        .tag-count {
            display: inline-block;
            font-size: 0.7rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 2px 8px;
            margin-left: 6px;
            color: var(--text-muted);
        }

        .sidebar-divider {
            border: none;
            border-top: 1px solid var(--border-subtle);
            margin: 22px 0;
        }

        .sidebar-hot-topics {
            margin-top: 8px;
        }

        .sidebar-hot-topics h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin: 0 0 14px;
        }

        .hot-topic-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            margin-bottom: 6px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .hot-topic-item:hover {
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent);
        }

        .hot-topic-rank {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .hot-topic-rank.rank-2 {
            background: linear-gradient(135deg, #5E17EB, #00F0FF);
        }

        .hot-topic-rank.rank-3 {
            background: linear-gradient(135deg, #00F0FF, #7B2FBE);
        }

        .hot-topic-rank.rank-other {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
        }

        /* ============ DISCUSSION LIST ============ */
        .discussion-list-area {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 28px;
            border: 1px solid var(--border-subtle);
        }

        .discussion-list-area h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .discussion-list-area h3 i {
            color: var(--accent);
        }

        .discussion-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .discussion-filter {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-btn:hover,
        .filter-btn.active-filter {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 240, 255, 0.08);
        }

        .discussion-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 16px;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
            margin-bottom: 4px;
        }

        .discussion-item:hover {
            border-color: var(--border-subtle);
            background: var(--bg-card-alt);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .discussion-item+.discussion-item {
            border-top: 1px solid var(--border-subtle);
        }

        .discussion-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1rem;
            color: #fff;
            font-weight: 600;
        }

        .discussion-avatar.avatar-2 {
            background: linear-gradient(135deg, #00F0FF, #5E17EB);
        }

        .discussion-avatar.avatar-3 {
            background: linear-gradient(135deg, #FF5E13, #7B2FBE);
        }

        .discussion-avatar.avatar-4 {
            background: linear-gradient(135deg, #5E17EB, #7B2FBE);
        }

        .discussion-body {
            flex: 1;
            min-width: 0;
        }

        .discussion-title {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
            line-height: 1.4;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .discussion-title .pin-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 10px;
            background: rgba(255, 94, 19, 0.2);
            color: #FF5E13;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .discussion-title .hot-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 10px;
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent);
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .discussion-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0 0 8px;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .discussion-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .discussion-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .discussion-meta .meta-icon {
            font-size: 0.75rem;
            color: var(--accent);
        }

        .discussion-date-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }

        .discussion-readmore {
            display: inline-block;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-accent);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            background: transparent;
            white-space: nowrap;
            margin-top: 4px;
        }

        .discussion-readmore:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
        }

        .discussion-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
        }

        .page-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-subtle);
            background: transparent;
            color: var(--text-secondary);
        }

        .page-btn:hover,
        .page-btn.active-page {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 240, 255, 0.08);
        }

        .page-btn.page-arrow {
            font-size: 0.8rem;
        }

        /* ============ COMMUNITY HIGHLIGHTS ============ */
        .community-highlights {
            padding: 60px 0 40px;
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .highlight-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--border-subtle);
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .highlight-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .highlight-card .hl-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--accent);
            transition: all var(--transition-smooth);
        }

        .highlight-card:hover .hl-icon {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .highlight-card h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .highlight-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 60px 0;
        }

        .faq-section .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            text-align: center;
        }

        .faq-section .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            text-align: center;
            margin: 0 0 36px;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: 0 4px 24px rgba(0, 240, 255, 0.1);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            gap: 12px;
            transition: all var(--transition-fast);
        }

        .faq-question .q-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 60px 0;
            text-align: center;
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            border: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.06) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-card h3 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
        }

        .cta-btn-large {
            display: inline-block;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            box-shadow: 0 4px 20px rgba(123, 47, 190, 0.4);
            position: relative;
            z-index: 1;
            border: none;
        }

        .cta-btn-large:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0A0D13;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 20px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 1px;
        }

        .footer-col p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
            padding: 2px 0;
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        /* ============ RESPONSIVE ============ */
        @media screen and (max-width: 1200px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.8rem;
                gap: 4px;
            }
            .nav-links a .nav-icon {
                font-size: 0.75rem;
                width: 14px;
            }
            .community-layout {
                grid-template-columns: 240px 1fr;
                gap: 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .community-layout {
                grid-template-columns: 1fr;
            }
            .sidebar-tags {
                position: static;
                margin-bottom: 24px;
            }
            .tag-cloud {
                justify-content: center;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero-content h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 768px) {
            .page-hero {
                min-height: 220px;
            }
            .page-hero-content h1 {
                font-size: 1.8rem;
            }
            .page-hero-content .hero-sub {
                font-size: 0.95rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .discussion-list-area {
                padding: 18px;
            }
            .discussion-item {
                padding: 14px 10px;
                gap: 10px;
            }
            .discussion-avatar {
                width: 36px;
                height: 36px;
                font-size: 0.8rem;
            }
            .discussion-title {
                font-size: 0.95rem;
            }
            .discussion-meta {
                gap: 8px;
                font-size: 0.75rem;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-card {
                padding: 32px 20px;
            }
            .cta-card h3 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links {
                justify-content: center;
                gap: 10px;
            }
            .discussion-filter {
                gap: 4px;
            }
            .filter-btn {
                padding: 5px 10px;
                font-size: 0.7rem;
            }
            .discussion-list-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
        }

        @media screen and (max-width: 520px) {
            .container-custom {
                padding: 0 12px;
            }
            .page-hero {
                min-height: 180px;
                margin-top: 60px;
            }
            .page-hero-content h1 {
                font-size: 1.5rem;
            }
            .page-hero-content .hero-sub {
                font-size: 0.85rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .discussion-item {
                flex-direction: column;
                gap: 8px;
            }
            .discussion-avatar {
                width: 32px;
                height: 32px;
            }
            .tag-item {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .cta-btn-large {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
            }
            .discussion-pagination {
                gap: 4px;
            }
            .page-btn {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #7B2FBE;
            --primary-dark: #5E17EB;
            --accent: #00F0FF;
            --bg-deep: #0B0E14;
            --bg-card: #151A24;
            --bg-card-alt: #1A1F2E;
            --bg-light: #F4F6FA;
            --bg-light-card: #ECEFF5;
            --text-primary: #FFFFFF;
            --text-secondary: #E0E0E0;
            --text-muted: #8A8FA0;
            --text-dark: #1A1A1A;
            --text-dark-secondary: #3A3D44;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-accent: rgba(0, 240, 255, 0.5);
            --border-light: rgba(0, 0, 0, 0.08);
            --radius-xl: 20px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 8px 30px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 18px rgba(0, 240, 255, 0.4);
            --shadow-light-card: 0 2px 10px rgba(0, 0, 0, 0.06);
            --shadow-light-hover: 0 6px 22px rgba(123, 47, 190, 0.12);
            --gradient-brand: linear-gradient(135deg, #7B2FBE 0%, #5E17EB 50%, #00F0FF 100%);
            --gradient-overlay: linear-gradient(135deg, rgba(123, 47, 190, 0.75) 0%, rgba(94, 23, 235, 0.65) 50%, rgba(0, 240, 255, 0.45) 100%);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Inter', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 68px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            margin: 0 0 0.6em;
            line-height: 1.3;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
        }
        p {
            margin: 0 0 1em;
            line-height: 1.8;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: var(--gradient-brand) 1;
            border-image-slice: 1;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.08);
        }

        .nav-links a .nav-icon {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: rgba(10, 14, 20, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 16px 24px;
            gap: 4px;
            border-top: 1px solid var(--border-subtle);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent);
        }

        .mobile-menu.open {
            display: flex;
        }

        /* ============ PAGE HERO ============ */
        .page-hero {
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.95) 0%, rgba(21, 26, 36, 0.9) 40%, rgba(30, 20, 50, 0.88) 100%);
            position: relative;
            padding: 60px 0 50px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(123, 47, 190, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
        }

        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .page-hero .breadcrumb a {
            color: var(--accent);
            transition: color var(--transition-fast);
        }

        .page-hero .breadcrumb a:hover {
            color: #fff;
        }

        .page-hero .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.7;
        }

        /* ============ SEARCH BAR ============ */
        .search-bar-wrap {
            margin-top: 20px;
            max-width: 560px;
            position: relative;
            z-index: 2;
        }

        .search-bar-wrap input {
            width: 100%;
            padding: 14px 48px 14px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-subtle);
            background: var(--bg-card);
            color: var(--text-primary);
            font-size: 1rem;
            font-family: var(--font-body);
            outline: none;
            transition: all var(--transition-fast);
        }

        .search-bar-wrap input::placeholder {
            color: var(--text-muted);
        }

        .search-bar-wrap input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
        }

        .search-bar-wrap .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--gradient-brand);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .search-bar-wrap .search-btn:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
        }

        /* ============ HOT TAGS ============ */
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 16px;
            position: relative;
            z-index: 2;
        }

        .hot-tags .tag-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .hot-tags a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hot-tags a:hover {
            background: rgba(0, 240, 255, 0.12);
            border-color: var(--border-accent);
            color: var(--accent);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.08);
        }

        /* ============ VALUE PROPS THREE ============ */
        .value-props-section {
            padding: 64px 0;
            background: var(--bg-deep);
        }

        .value-props-section .section-label {
            text-align: center;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            margin-bottom: 8px;
            font-weight: 600;
        }

        .value-props-section .section-title {
            text-align: center;
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 40px;
        }

        .value-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .value-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-brand);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .value-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-accent);
            transform: translateY(-4px);
        }

        .value-card:hover::before {
            opacity: 1;
        }

        .value-card .value-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .value-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .value-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
            flex-grow: 1;
        }

        .value-card .value-badge {
            display: inline-block;
            margin-top: 14px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent);
            align-self: flex-start;
        }

        /* ============ 4-COLUMN MINI CARDS GRID ============ */
        .mini-cards-section {
            padding: 60px 0;
            background: var(--bg-card-alt);
            position: relative;
        }

        .mini-cards-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .mini-cards-section .section-label {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            margin-bottom: 6px;
            font-weight: 600;
        }

        .mini-cards-section .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .mini-card {
            background: var(--bg-light-card);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            height: 100%;
            box-shadow: var(--shadow-light-card);
            position: relative;
            overflow: hidden;
        }

        .mini-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-brand);
            transform: scaleX(0);
            transition: transform var(--transition-smooth);
            transform-origin: left;
        }

        .mini-card:hover {
            box-shadow: var(--shadow-light-hover);
            transform: translateY(-3px);
            border-color: rgba(123, 47, 190, 0.3);
        }

        .mini-card:hover::after {
            transform: scaleX(1);
        }

        .mini-card .mini-icon {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }

        .mini-card .mini-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.35;
            flex-grow: 1;
            display: flex;
            align-items: center;
        }

        .mini-card .mini-date {
            font-size: 0.78rem;
            color: #8A8FA0;
            font-weight: 400;
            white-space: nowrap;
        }

        .mini-card .mini-link-hint {
            font-size: 0.75rem;
            color: var(--primary);
            opacity: 0;
            transition: opacity var(--transition-fast);
            font-weight: 500;
        }

        .mini-card:hover .mini-link-hint {
            opacity: 1;
        }

        /* ============ SCENE DEMO SECTION ============ */
        .scene-demo-section {
            padding: 70px 0;
            background: var(--bg-deep);
        }

        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .scene-demo-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .scene-demo-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
            transition: transform var(--transition-smooth);
        }

        .scene-demo-image:hover img {
            transform: scale(1.03);
        }

        .scene-demo-image .image-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--gradient-brand);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .scene-demo-text h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .scene-demo-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .scene-demo-text .data-highlights {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .data-highlight-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            border: 1px solid var(--border-subtle);
            text-align: center;
            min-width: 90px;
            flex: 1;
        }

        .data-highlight-item .highlight-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            font-family: var(--font-heading);
            letter-spacing: -0.5px;
        }

        .data-highlight-item .highlight-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro-section {
            padding: 60px 0;
            background: var(--bg-card-alt);
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-visual {
            background: var(--gradient-brand);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 240px;
        }

        .brand-intro-visual .brand-mark {
            font-size: 3rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 2px;
            font-family: var(--font-heading);
        }

        .brand-intro-visual .brand-tagline {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 8px;
        }

        .brand-intro-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .brand-intro-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        .brand-intro-text .brand-stats-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .brand-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .brand-stat-item .stat-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* ============ SOCIAL PROOF ============ */
        .social-proof-section {
            padding: 56px 0;
            background: var(--bg-deep);
            overflow: hidden;
        }

        .social-proof-section .section-label {
            text-align: center;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            margin-bottom: 6px;
            font-weight: 600;
        }

        .social-proof-section .section-title {
            text-align: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 32px;
        }

        .badge-scroll-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 8px 0;
        }

        .badge-scroll-wrap::-webkit-scrollbar {
            display: none;
        }

        .badge-scroll-inner {
            display: flex;
            gap: 16px;
            padding: 0 24px;
            min-width: max-content;
        }

        .badge-chip {
            flex-shrink: 0;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 14px 22px;
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: default;
        }

        .badge-chip:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-alt);
        }

        .badge-chip .chip-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent);
            flex-shrink: 0;
        }

        .badge-chip .chip-label {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        /* ============ DEEP CONTENT ============ */
        .deep-content-section {
            padding: 64px 0;
            background: var(--bg-card-alt);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .deep-content-text h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .deep-content-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .deep-content-table-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-subtle);
            overflow-x: auto;
        }

        .deep-content-table-wrap h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .data-table th {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent);
            padding: 12px 14px;
            text-align: left;
            font-weight: 600;
            border-radius: 4px;
            white-space: nowrap;
        }

        .data-table td {
            padding: 10px 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-subtle);
            white-space: nowrap;
        }

        .data-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .data-table .highlight-cell {
            color: var(--accent);
            font-weight: 600;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-deep);
        }

        .faq-section .section-label {
            text-align: center;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            margin-bottom: 6px;
            font-weight: 600;
        }

        .faq-section .section-title {
            text-align: center;
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 36px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.2);
        }

        .faq-item.open {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
            transition: all var(--transition-fast);
        }

        .faq-question .faq-q-badge {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: #fff;
            flex-shrink: 0;
            font-weight: 700;
        }

        .faq-question .faq-arrow {
            margin-left: auto;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin: 0;
        }

        /* ============ BOTTOM FIXED CTA BAR ============ */
        .bottom-fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 999;
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-subtle);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .bottom-fixed-cta .cta-text {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .bottom-fixed-cta .cta-btn {
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 16px rgba(123, 47, 190, 0.35);
        }

        .bottom-fixed-cta .cta-btn:hover {
            filter: brightness(1.15);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #080B10;
            padding: 48px 0 20px;
            margin-bottom: 56px;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-col p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1200px) {
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
                gap: 4px;
            }
            .nav-links a .nav-icon {
                font-size: 0.75rem;
            }
            .page-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 2.1rem;
            }
            .value-props-section .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 60px;
            }
            .nav-inner {
                height: 60px;
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.95rem;
            }
            .mini-cards-section .section-title {
                font-size: 1.6rem;
            }
            .value-props-section .section-title {
                font-size: 1.5rem;
            }
            .scene-demo-text h2 {
                font-size: 1.5rem;
            }
            .deep-content-text h2 {
                font-size: 1.5rem;
            }
            .faq-section .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .bottom-fixed-cta {
                flex-direction: column;
                gap: 8px;
                padding: 10px 16px;
                text-align: center;
            }
            .bottom-fixed-cta .cta-btn {
                width: 100%;
                text-align: center;
            }
            .data-highlights {
                flex-direction: column;
                gap: 10px;
            }
            .container-custom {
                padding: 0 16px;
            }
            .badge-scroll-inner {
                padding: 0 16px;
            }
            .brand-intro-visual {
                min-height: 180px;
                padding: 28px 20px;
            }
            .brand-intro-visual .brand-mark {
                font-size: 2.2rem;
            }
            .search-bar-wrap {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero .hero-subtitle {
                font-size: 0.88rem;
            }
            .mini-card {
                padding: 16px 12px;
                gap: 8px;
            }
            .mini-card .mini-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .mini-card .mini-title {
                font-size: 0.82rem;
            }
            .mini-card .mini-date {
                font-size: 0.72rem;
            }
            .value-card {
                padding: 22px 18px;
            }
            .value-card h3 {
                font-size: 1.15rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
                gap: 10px;
            }
            .site-footer {
                padding: 32px 0 16px;
                margin-bottom: 50px;
            }
        }

        /* ============ LOAD MORE BUTTON ============ */
        .load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            background: transparent;
            border: 2px solid var(--border-accent);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
        }

        .load-more-btn:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }