/* roulang page: index */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 72px;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 576px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }
        @media (min-width: 992px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
        }

        section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            position: relative;
        }
        @media (max-width: 767px) {
            section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 38px;
            }
        }
        @media (min-width: 992px) {
            .section-title {
                font-size: 42px;
            }
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .section-desc {
                font-size: 17px;
                margin-bottom: 48px;
            }
        }

        .gradient-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .btn {
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: none;
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .btn-primary-cta {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.28);
        }
        .btn-primary-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 212, 255, 0.4);
            color: #fff;
            filter: saturate(1.12);
        }
        .btn-primary-cta:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(0, 212, 255, 0.22);
        }
        .btn-outline-cta {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--border-light);
            box-shadow: none;
        }
        .btn-outline-cta:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.12);
        }
        .btn-outline-cta:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .card-hover:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .badge-chip {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .badge-cyan {
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 212, 255, 0.25);
        }
        .badge-purple {
            background: rgba(124, 58, 237, 0.1);
            color: var(--accent-violet);
            border: 1px solid rgba(124, 58, 237, 0.3);
        }
        .badge-gold {
            background: rgba(212, 165, 55, 0.1);
            color: var(--accent-gold);
            border: 1px solid rgba(212, 165, 55, 0.3);
        }
        .badge-green {
            background: rgba(0, 232, 143, 0.1);
            color: var(--accent-green);
            border: 1px solid rgba(0, 232, 143, 0.25);
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.1);
            color: var(--accent-red);
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, var(--border-light) 30%, var(--border-light) 70%, transparent 100%);
            margin: 0;
            border: none;
        }

        /* Floating Dock Navigation */
        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1050;
            width: calc(100% - 32px);
            max-width: 1100px;
        }
        .navbar-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 20px;
            background: rgba(14, 14, 22, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(50, 50, 63, 0.7);
            border-radius: 999px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .navbar-dock.scrolled {
            background: rgba(14, 14, 22, 0.92);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
        }
        .navbar-dock .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .navbar-dock .logo-brand i {
            font-size: 22px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .navbar-dock .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-dock .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .navbar-dock .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .navbar-dock .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.1);
            box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.25);
        }
        .navbar-dock .dock-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-dock .btn-dock-cta {
            padding: 9px 20px;
            font-size: 13px;
            font-weight: 700;
            border-radius: 999px;
            background: var(--gradient-primary);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }
        .navbar-dock .btn-dock-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3);
            filter: saturate(1.1);
            color: #fff;
        }
        .navbar-dock .navbar-toggler-dock {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-dock .navbar-toggler-dock:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        @media (max-width: 991px) {
            .navbar-dock .nav-links {
                display: none;
            }
            .navbar-dock .navbar-toggler-dock {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .navbar-dock .dock-actions .btn-dock-cta {
                display: none;
            }
        }

        .mobile-menu-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 100%;
            max-width: 360px;
            background: var(--bg-glass-solid);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-left: 1px solid var(--border-light);
            z-index: 1060;
            transform: translateX(100%);
            transition: transform 0.35s ease;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu-drawer.open {
            transform: translateX(0);
        }
        .mobile-menu-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .mobile-menu-drawer .drawer-header .logo-brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
        }
        .mobile-menu-drawer .btn-close-drawer {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-menu-drawer .btn-close-drawer:hover {
            color: var(--text-primary);
        }
        .mobile-menu-drawer .drawer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu-drawer .drawer-links li a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-menu-drawer .drawer-links li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
        }
        .mobile-menu-drawer .drawer-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.1);
        }
        .mobile-menu-drawer .drawer-cta {
            margin-top: auto;
            padding-top: 16px;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1055;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* Hero - No large image, icon matrix + status bar + short title */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -25%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        @media (max-width: 767px) {
            .hero-section {
                min-height: 60vh;
                padding-top: 110px;
                padding-bottom: 56px;
            }
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-status-bar {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 999px;
            padding: 8px 16px;
            font-size: 13px;
            color: var(--accent-cyan);
            font-weight: 500;
            margin-bottom: 24px;
        }
        .hero-status-bar .dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }
        .hero-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 50px;
            }
        }
        @media (min-width: 992px) {
            .hero-title {
                font-size: 58px;
            }
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .hero-desc {
                font-size: 18px;
            }
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }
        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            max-width: 480px;
        }
        @media (max-width: 575px) {
            .hero-icon-matrix {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
        }
        .hero-icon-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .hero-icon-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: var(--border-light);
            transform: translateY(-2px);
        }
        .hero-icon-item i {
            font-size: 20px;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }
        .hero-icon-item span {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        /* Security claim / safety section */
        .security-claim-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .security-claim-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }
        @media (min-width: 768px) {
            .security-claim-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        .security-claim-card {
            padding: 28px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
        }
        .security-claim-card:hover {
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: var(--shadow-glow-cyan);
        }
        .security-claim-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 212, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }
        .security-claim-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .security-claim-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Check items */
        .check-items-section {
            background: var(--bg-primary);
        }
        .check-items-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        @media (min-width: 768px) {
            .check-items-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .check-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }
        .check-item .check-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: rgba(0, 232, 143, 0.1);
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            margin-top: 2px;
        }
        .check-item .check-body h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .check-item .check-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Compliance badges */
        .compliance-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .compliance-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .compliance-badge-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .compliance-badge-item:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }
        .compliance-badge-item i {
            font-size: 16px;
            color: var(--accent-gold);
        }

        /* Boundary section */
        .boundary-section {
            background: var(--bg-primary);
        }
        .boundary-card {
            padding: 32px;
            background: linear-gradient(135deg, var(--bg-card) 0%, #1a1028 100%);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .boundary-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-primary);
            border-radius: 4px 0 0 4px;
        }
        .boundary-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .boundary-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 700px;
        }

        /* Stats / data badges */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }
        .stat-badge {
            padding: 24px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
        }
        .stat-badge:hover {
            border-color: rgba(0, 212, 255, 0.25);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-4px);
        }
        .stat-badge .stat-number {
            font-size: 38px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }
        @media (min-width: 768px) {
            .stat-badge .stat-number {
                font-size: 44px;
            }
        }
        .stat-badge .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Three feature cards */
        .features-section {
            background: var(--bg-primary);
        }
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        @media (min-width: 768px) {
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }
        .feature-card {
            padding: 28px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .feature-card .feature-icon.icon-cyan {
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-cyan);
        }
        .feature-card .feature-icon.icon-purple {
            background: rgba(124, 58, 237, 0.1);
            color: var(--accent-violet);
        }
        .feature-card .feature-icon.icon-green {
            background: rgba(0, 232, 143, 0.1);
            color: var(--accent-green);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Brand intro */
        .brand-intro-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .brand-intro-card {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            align-items: center;
        }
        @media (min-width: 768px) {
            .brand-intro-card {
                grid-template-columns: 1fr 1fr;
                gap: 48px;
            }
        }
        .brand-intro-text .section-label {
            margin-bottom: 12px;
        }
        .brand-intro-text h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .brand-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        /* News center */
        .news-section {
            background: var(--bg-primary);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
        }
        @media (min-width: 768px) {
            .news-item {
                grid-template-columns: 100px 1fr auto;
                align-items: center;
                gap: 24px;
                padding: 24px;
            }
        }
        .news-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }
        .news-item .news-body h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .news-item .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .news-item .btn-news-read {
            white-space: nowrap;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1.5px solid var(--border-light);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .news-item .btn-news-read:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        /* Gear recommendations */
        .gear-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .gear-horizontal-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .gear-horizontal-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .gear-horizontal-scroll::-webkit-scrollbar-track {
            background: var(--bg-card);
            border-radius: 3px;
        }
        .gear-horizontal-scroll::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }
        .gear-card {
            min-width: 260px;
            max-width: 280px;
            flex-shrink: 0;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .gear-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .gear-card .gear-image {
            height: 160px;
            object-fit: cover;
            width: 100%;
        }
        .gear-card .gear-body {
            padding: 16px;
        }
        .gear-card .gear-body h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .gear-card .gear-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .gear-card .gear-meta {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* Team training */
        .team-training-section {
            background: var(--bg-primary);
        }
        .team-training-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            align-items: center;
        }
        @media (min-width: 768px) {
            .team-training-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        .team-training-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .team-training-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }
        .team-training-points {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 20px;
        }
        .training-point {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .training-point:hover {
            border-color: var(--border-light);
        }
        .training-point i {
            color: var(--accent-cyan);
            font-size: 16px;
            margin-top: 2px;
        }
        .training-point span {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Trust endorsements */
        .trust-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .trust-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        @media (min-width: 768px) {
            .trust-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }
        .trust-card {
            padding: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            text-align: center;
            transition: all var(--transition-base);
        }
        .trust-card:hover {
            border-color: rgba(0, 212, 255, 0.2);
            transform: translateY(-3px);
        }
        .trust-card .trust-icon {
            font-size: 28px;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .trust-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-primary);
        }
        .faq-accordion {
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item.open {
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: inset 4px 0 0 0 var(--accent-cyan);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* CTA block */
        .cta-section {
            background: var(--gradient-cta);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 56px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin-top: 32px;
            margin-bottom: 32px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }
        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 38px;
            }
        }
        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 2;
        }
        .cta-section .btn {
            position: relative;
            z-index: 2;
        }

        /* Bottom fixed conversion bar */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1040;
            width: calc(100% - 24px);
            max-width: 680px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 10px 16px;
            background: rgba(14, 14, 22, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
            transition: all var(--transition-base);
        }
        .bottom-fixed-bar .bar-text {
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .bottom-fixed-bar .bar-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .bottom-fixed-bar .btn-bar-cta {
            padding: 8px 16px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            background: var(--gradient-primary);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .bottom-fixed-bar .btn-bar-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
            color: #fff;
        }
        .bottom-fixed-bar .btn-bar-close {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 16px;
            cursor: pointer;
            padding: 4px;
            transition: color var(--transition-fast);
        }
        .bottom-fixed-bar .btn-bar-close:hover {
            color: var(--text-primary);
        }
        @media (max-width: 575px) {
            .bottom-fixed-bar {
                border-radius: var(--radius-md);
                padding: 8px 12px;
                gap: 6px;
            }
            .bottom-fixed-bar .bar-text {
                font-size: 11px;
            }
            .bottom-fixed-bar .btn-bar-cta {
                padding: 6px 12px;
                font-size: 11px;
            }
        }

        /* Footer */
        .footer-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 56px;
            padding-bottom: 24px;
            margin-top: 48px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-size: 22px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 300px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            margin-bottom: 20px;
            padding: 0;
        }
        .footer-links li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-tech-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom .footer-tech-links a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-bottom .footer-tech-links a:hover {
            color: var(--accent-cyan);
        }

        /* Responsive helpers */
        @media (max-width: 767px) {
            .section-title {
                font-size: 28px;
            }
            .section-desc {
                font-size: 15px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-btns .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .stat-badge .stat-number {
                font-size: 30px;
            }
            .feature-card {
                padding: 20px;
            }
            .news-item .btn-news-read {
                padding: 6px 12px;
                font-size: 12px;
            }
            .cta-section {
                padding: 40px 16px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 575px) {
            .navbar-dock-wrapper {
                top: 8px;
                width: calc(100% - 16px);
            }
            .navbar-dock {
                padding: 8px 14px;
                border-radius: 22px;
                gap: 8px;
            }
            .navbar-dock .logo-brand {
                font-size: 15px;
            }
            .navbar-dock .logo-brand i {
                font-size: 18px;
            }
            .security-claim-card {
                padding: 20px;
            }
            .boundary-card {
                padding: 20px;
            }
            .brand-intro-text h2 {
                font-size: 24px;
            }
            .news-item {
                padding: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 72px;
        }

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

        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 576px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (min-width: 992px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        @media (min-width: 1200px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
        }

        section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            position: relative;
        }

        @media (max-width: 768px) {
            section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 38px;
            }
        }

        @media (min-width: 1200px) {
            .section-title {
                font-size: 42px;
            }
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        @media (min-width: 768px) {
            .section-desc {
                font-size: 17px;
                margin-bottom: 48px;
            }
        }

        .btn {
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: none;
            transition: all var(--transition-base);
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            box-shadow: none;
        }

        .btn-primary-gradient {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary-gradient:hover,
        .btn-primary-gradient:focus {
            color: #fff;
            filter: brightness(1.1) saturate(1.08);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-primary-gradient:active {
            transform: translateY(0);
            filter: brightness(0.95);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
            box-shadow: none;
        }

        .btn-outline-dark:hover,
        .btn-outline-dark:focus {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        .btn-outline-dark:active {
            transform: translateY(0);
            background: rgba(255, 255, 255, 0.04);
        }

        .btn-dock-cta {
            background: var(--gradient-primary);
            color: #fff;
            border-radius: 999px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        .btn-dock-cta:hover,
        .btn-dock-cta:focus {
            color: #fff;
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-dock-cta:active {
            transform: translateY(0);
        }

        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1030;
            display: flex;
            justify-content: center;
            padding-left: 16px;
            padding-right: 16px;
            pointer-events: none;
        }

        .navbar-dock {
            pointer-events: auto;
            background: var(--bg-glass-solid);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1180px;
            padding: 10px 16px;
            gap: 16px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), var(--shadow-glow-cyan);
            transition: background var(--transition-base);
        }

        .navbar-dock.scrolled {
            background: rgba(10, 10, 16, 0.96);
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .logo-brand i {
            color: var(--accent-cyan);
            font-size: 20px;
        }

        .logo-brand:hover {
            color: var(--accent-cyan);
        }

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

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links li a.active {
            color: #fff;
            background: var(--gradient-primary);
            box-shadow: var(--shadow-glow-cyan);
        }

        .dock-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-toggler-dock {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            width: 40px;
            height: 40px;
            display: none;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-dock:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 10, 16, 0.97);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            padding: 24px;
            transform: translateY(-100%);
            transition: transform 0.35s ease;
            visibility: hidden;
        }

        .mobile-drawer.open {
            transform: translateY(0);
            visibility: visible;
        }

        .mobile-drawer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 32px;
        }

        .mobile-drawer .logo-brand {
            font-size: 22px;
        }

        .mobile-drawer-close {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 999px;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 20px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-drawer-close:hover {
            border-color: var(--accent-red);
            color: var(--accent-red);
            background: rgba(239, 68, 68, 0.08);
        }

        .mobile-nav-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-links li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

        .mobile-nav-links li a:hover {
            background: rgba(0, 212, 255, 0.08);
            border-color: rgba(0, 212, 255, 0.25);
            color: var(--text-primary);
        }

        .mobile-nav-links li a.active {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
            box-shadow: var(--shadow-glow-cyan);
        }

        @media (max-width: 991px) {
            .nav-links,
            .dock-actions .btn-dock-cta {
                display: none;
            }
            .navbar-toggler-dock {
                display: flex;
            }
            .navbar-dock {
                justify-content: space-between;
            }
        }

        @media (max-width: 520px) {
            .navbar-dock-wrapper {
                top: 8px;
                padding-left: 8px;
                padding-right: 8px;
            }
            .navbar-dock {
                border-radius: 22px;
                padding: 8px 12px;
                gap: 8px;
            }
            .logo-brand {
                font-size: 16px;
                gap: 6px;
            }
            .logo-brand i {
                font-size: 17px;
            }
            .navbar-toggler-dock {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .btn-dock-cta {
                padding: 8px 16px;
                font-size: 12px;
            }
        }

        .category-hero {
            padding-top: 140px;
            padding-bottom: 64px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            min-height: 48vh;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-cyan);
        }

        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb-custom .current {
            color: var(--accent-cyan);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .category-hero h1 {
                font-size: 44px;
            }
        }

        @media (min-width: 1200px) {
            .category-hero h1 {
                font-size: 48px;
            }
        }

        .category-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 0;
        }

        @media (max-width: 520px) {
            .category-hero {
                padding-top: 110px;
                padding-bottom: 48px;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
        }

        .card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: var(--shadow-md), var(--shadow-glow-cyan);
            transform: translateY(-4px);
        }

        .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }

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

        .card-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .card-text {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .card .btn {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.03em;
            border: 1px solid transparent;
        }

        .badge-cyan {
            background: rgba(0, 212, 255, 0.12);
            border-color: rgba(0, 212, 255, 0.3);
            color: var(--accent-cyan);
        }

        .badge-purple {
            background: rgba(168, 85, 247, 0.12);
            border-color: rgba(168, 85, 247, 0.3);
            color: var(--accent-violet);
        }

        .badge-gold {
            background: rgba(212, 165, 55, 0.12);
            border-color: rgba(212, 165, 55, 0.3);
            color: var(--accent-gold);
        }

        .badge-green {
            background: rgba(0, 232, 143, 0.12);
            border-color: rgba(0, 232, 143, 0.3);
            color: var(--accent-green);
        }

        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border-color: rgba(239, 68, 68, 0.3);
            color: var(--accent-red);
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
        }

        .stat-card:hover {
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }

        .stat-number {
            font-size: 38px;
            font-weight: 800;
            line-height: 1;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            border-color: rgba(0, 212, 255, 0.35);
            box-shadow: var(--shadow-lg), var(--shadow-glow-purple);
            transform: translateY(-4px);
        }

        .featured-card .card-img-top {
            height: 240px;
        }

        .featured-card .card-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .featured-card .card-title {
            font-size: 20px;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .tag-list li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            transition: all var(--transition-fast);
        }

        .tag-list li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border-color: rgba(0, 212, 255, 0.3);
            transform: translateY(-2px);
        }

        .subscribe-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 32px;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .subscribe-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            font-size: 15px;
            color: var(--text-primary);
            outline: none;
            transition: all var(--transition-fast);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
            background: rgba(255, 255, 255, 0.07);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }

        .load-more-area {
            padding-top: 0;
            padding-bottom: 60px;
        }

        .load-more-area .btn {
            padding: 14px 40px;
            font-size: 15px;
        }

        .footer-section {
            background: #0a0a10;
            border-top: 1px solid var(--border-color);
            padding-top: 56px;
            padding-bottom: 32px;
            margin-top: 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--accent-cyan);
        }

        .footer-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-start;
        }

        .footer-links li a {
            display: inline-flex;
            padding: 6px 14px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

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

        .footer-tech-links span {
            color: var(--text-muted);
        }

        @media (max-width: 576px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }

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

        .section-bg-alt .card {
            background: rgba(22, 22, 31, 0.8);
        }

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

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --gradient-card-gold: linear-gradient(160deg, #1a1410 0%, #241c10 55%, #1a1208 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 72px;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }
        @media (min-width: 1400px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
        }

        section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            position: relative;
        }
        @media (max-width: 767px) {
            section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 34px;
            }
        }
        @media (min-width: 1024px) {
            .section-title {
                font-size: 38px;
            }
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .section-desc {
                font-size: 16px;
                margin-bottom: 44px;
            }
        }

        /* Navigation Dock */
        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1180px;
            z-index: 1000;
            padding: 0;
        }
        .navbar-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 8px 16px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(0, 212, 255, 0.06);
            transition: background var(--transition-base);
        }
        .navbar-dock.scrolled {
            background: var(--bg-glass-solid);
        }
        .logo-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 17px;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .logo-brand i {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-size: 20px;
        }
        .logo-brand:hover {
            color: var(--text-primary);
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(0, 212, 255, 0.08);
        }
        .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.12);
            font-weight: 600;
        }
        .dock-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .btn-dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 13px;
            padding: 9px 18px;
            border-radius: 999px;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(0, 212, 255, 0.28);
        }
        .btn-dock-cta:hover {
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(0, 212, 255, 0.4);
        }
        .navbar-toggler-dock {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            color: var(--text-primary);
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-dock:hover {
            background: rgba(0, 212, 255, 0.12);
            border-color: var(--accent-cyan);
        }

        @media (min-width: 992px) {
            .nav-links {
                display: flex;
            }
            .navbar-toggler-dock {
                display: none;
            }
        }

        /* Mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1500;
            display: flex;
            align-items: flex-end;
            pointer-events: none;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-drawer.open {
            pointer-events: auto;
            opacity: 1;
        }
        .mobile-drawer-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            border: none;
            cursor: pointer;
        }
        .mobile-drawer-panel {
            position: relative;
            width: 100%;
            background: var(--bg-glass-solid);
            border-top: 1px solid var(--border-light);
            border-radius: 24px 24px 0 0;
            padding: 32px 24px 40px;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .mobile-drawer.open .mobile-drawer-panel {
            transform: translateY(0);
        }
        .mobile-drawer-panel ul {
            list-style: none;
            margin: 0 0 20px;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-drawer-panel ul li a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
        }
        .mobile-drawer-panel ul li a:hover,
        .mobile-drawer-panel ul li a.active {
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-cyan);
        }
        .mobile-drawer-panel .btn-dock-cta {
            width: 100%;
            justify-content: center;
            padding: 14px 20px;
            font-size: 15px;
        }

        /* Hero - Category */
        .hero-category {
            padding-top: 140px;
            padding-bottom: 60px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
            min-height: 52vh;
            display: flex;
            align-items: center;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 60% 50% at 70% 20%, rgba(124, 58, 237, 0.18), transparent 70%);
            pointer-events: none;
        }
        .hero-category .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .hero-category .breadcrumb-wrap a {
            color: var(--text-secondary);
        }
        .hero-category .breadcrumb-wrap a:hover {
            color: var(--accent-cyan);
        }
        .hero-category .breadcrumb-wrap .sep {
            color: var(--text-muted);
        }
        .hero-category h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .hero-category h1 {
                font-size: 42px;
            }
        }
        @media (min-width: 1024px) {
            .hero-category h1 {
                font-size: 46px;
            }
        }
        .hero-category .hero-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 640px;
            position: relative;
            z-index: 2;
        }
        @media (min-width: 768px) {
            .hero-category .hero-desc {
                font-size: 16px;
            }
        }

        /* Coupon Wall Hero */
        .coupon-wall {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-top: 32px;
            position: relative;
            z-index: 2;
        }
        @media (min-width: 768px) {
            .coupon-wall {
                grid-template-columns: 1.4fr 1fr;
                gap: 24px;
            }
        }
        .coupon-main {
            background: var(--gradient-card-gold);
            border: 1px solid rgba(212, 165, 55, 0.35);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 32px rgba(212, 165, 55, 0.12);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 200px;
        }
        .coupon-main::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 165, 55, 0.16), transparent 65%);
            pointer-events: none;
        }
        .coupon-main .coupon-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: #f5d06a;
            background: rgba(212, 165, 55, 0.16);
            border: 1px solid rgba(212, 165, 55, 0.3);
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 14px;
            width: fit-content;
            letter-spacing: 0.04em;
        }
        .coupon-main .coupon-title {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 10px;
        }
        .coupon-main .coupon-desc {
            font-size: 14px;
            color: #d4c9a8;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 400px;
        }
        .coupon-main .btn-coupon {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #d4a537, #e8b940);
            color: #1a1410;
            font-weight: 800;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: 999px;
            border: none;
            width: fit-content;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(212, 165, 55, 0.3);
        }
        .coupon-main .btn-coupon:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 165, 55, 0.42);
            color: #1a1410;
        }
        .coupon-side {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .coupon-mini {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            transition: all var(--transition-fast);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .coupon-mini:hover {
            border-color: var(--accent-cyan);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-cyan);
        }
        .coupon-mini .coupon-icon {
            font-size: 22px;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }
        .coupon-mini .coupon-mini-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .coupon-mini .coupon-mini-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 575px) {
            .coupon-side {
                grid-template-columns: 1fr;
            }
            .coupon-main {
                min-height: 170px;
                padding: 20px 16px;
            }
            .coupon-main .coupon-title {
                font-size: 18px;
            }
        }

        /* Stats bar */
        .stats-bar {
            padding: 0;
            margin-top: -20px;
            position: relative;
            z-index: 3;
        }
        .stats-wrap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        @media (min-width: 768px) {
            .stats-wrap {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .stat-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 34px;
            }
        }
        .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        /* Event list */
        .event-list-section {
            background: var(--bg-primary);
        }
        .event-card {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px;
            margin-bottom: 16px;
            transition: all var(--transition-fast);
        }
        .event-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        @media (min-width: 768px) {
            .event-card {
                flex-direction: row;
                align-items: center;
                gap: 20px;
                padding: 22px 24px;
            }
        }
        .event-card .event-img {
            flex-shrink: 0;
            width: 100%;
            height: 160px;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }
        @media (min-width: 768px) {
            .event-card .event-img {
                width: 180px;
                height: 120px;
            }
        }
        .event-card .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .event-card:hover .event-img img {
            transform: scale(1.05);
        }
        .event-card .event-info {
            flex: 1;
            min-width: 0;
        }
        .event-card .event-date {
            font-size: 12px;
            color: var(--accent-gold);
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 6px;
        }
        .event-card .event-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .event-card .event-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .event-card .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .event-card .event-meta span {
            font-size: 12px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .event-card .btn-read {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }
        .event-card .btn-read:hover {
            gap: 10px;
            color: #4de0ff;
        }

        /* Schedule calendar style */
        .schedule-section {
            background: var(--bg-secondary);
        }
        .schedule-timeline {
            position: relative;
            padding-left: 24px;
        }
        .schedule-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
            border-radius: 2px;
        }
        .schedule-item {
            position: relative;
            padding-left: 20px;
            margin-bottom: 20px;
        }
        .schedule-item::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-cyan);
            border: 2px solid var(--bg-secondary);
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.5);
        }
        .schedule-item .sch-time {
            font-size: 12px;
            color: var(--accent-gold);
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .schedule-item .sch-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .schedule-item .sch-desc {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Featured cards */
        .featured-section {
            background: var(--bg-primary);
        }
        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
        }
        .featured-card:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--shadow-glow-purple);
            transform: translateY(-4px);
        }
        .featured-card .featured-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .featured-card:hover .featured-img img {
            transform: scale(1.06);
        }
        .featured-card .featured-body {
            padding: 20px 22px 22px;
        }
        .featured-card .featured-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            color: var(--accent-green);
            background: rgba(0, 232, 143, 0.1);
            border: 1px solid rgba(0, 232, 143, 0.25);
            border-radius: 999px;
            padding: 3px 10px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .featured-card .featured-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card .featured-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .featured-card .featured-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .featured-card .featured-link:hover {
            gap: 10px;
            color: #4de0ff;
        }

        /* Tags */
        .tags-section {
            background: var(--bg-secondary);
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 8px 16px;
            transition: all var(--transition-fast);
        }
        .tag-link:hover {
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
        }

        /* Subscription CTA */
        .cta-section {
            background: var(--gradient-cta);
            padding-top: 64px;
            padding-bottom: 64px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 50% 60% at 50% 40%, rgba(0, 212, 255, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-panel {
            text-align: center;
            position: relative;
            z-index: 2;
            max-width: 560px;
            margin: 0 auto;
        }
        .cta-panel .cta-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        @media (min-width: 768px) {
            .cta-panel .cta-title {
                font-size: 30px;
            }
        }
        .cta-panel .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cta-subscribe {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            flex-direction: column;
        }
        @media (min-width: 576px) {
            .cta-subscribe {
                flex-direction: row;
            }
        }
        .cta-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 12px 20px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }
        .cta-subscribe input::placeholder {
            color: var(--text-muted);
        }
        .cta-subscribe input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }
        .btn-subscribe {
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            padding: 12px 28px;
            border-radius: 999px;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.25);
        }
        .btn-subscribe:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 212, 255, 0.38);
            color: #fff;
        }

        /* Load more */
        .load-more-wrap {
            text-align: center;
            padding-top: 16px;
        }
        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 12px 32px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-load-more:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
            box-shadow: var(--shadow-glow-cyan);
        }

        /* Footer */
        .footer-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 48px;
            padding-bottom: 24px;
            margin-top: 0;
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-brand i {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-size: 20px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .footer-links li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-tech-links a {
            color: var(--text-muted);
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-tech-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-tech-links span {
            color: var(--border-light);
        }

        /* Fixed bottom bar */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 720px;
            background: var(--bg-glass-solid);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 10px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            z-index: 800;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
        }
        .fixed-bottom-bar .fb-text {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .fixed-bottom-bar .fb-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .fixed-bottom-bar .btn-fb-cta {
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 12px;
            padding: 8px 16px;
            border-radius: 999px;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(0, 212, 255, 0.25);
        }
        .fixed-bottom-bar .btn-fb-cta:hover {
            transform: translateY(-1px);
            color: #fff;
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.38);
        }
        .fixed-bottom-bar .btn-fb-close {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 16px;
            cursor: pointer;
            padding: 6px 8px;
            transition: color var(--transition-fast);
        }
        .fixed-bottom-bar .btn-fb-close:hover {
            color: var(--text-primary);
        }
        @media (max-width: 575px) {
            .fixed-bottom-bar {
                bottom: 8px;
                width: calc(100% - 16px);
                border-radius: 20px;
                padding: 8px 12px;
            }
            .fixed-bottom-bar .fb-text {
                font-size: 11px;
                max-width: 130px;
            }
            .fixed-bottom-bar .btn-fb-cta {
                font-size: 11px;
                padding: 7px 12px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 72px;
            background-image: radial-gradient(circle at 20% 15%, rgba(0, 212, 255, 0.04) 0%, transparent 45%), radial-gradient(circle at 80% 75%, rgba(124, 58, 237, 0.05) 0%, transparent 40%);
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 576px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }
        @media (min-width: 992px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
        }

        section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            position: relative;
        }

        @media (max-width: 767px) {
            section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 38px;
            }
        }
        @media (min-width: 992px) {
            .section-title {
                font-size: 42px;
            }
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }
        @media (min-width: 768px) {
            .section-desc {
                font-size: 17px;
                margin-bottom: 48px;
            }
        }

        .btn {
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            border: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary-gradient {
            background: var(--gradient-primary);
            color: #fff;
            border: none;
            box-shadow: 0 6px 20px rgba(0, 212, 255, 0.25);
        }
        .btn-primary-gradient:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 8px 28px rgba(0, 212, 255, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline-dark-glow {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline-dark-glow:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-2px);
            background: rgba(0, 212, 255, 0.06);
        }

        .card-glow {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .card-glow:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 6px 16px;
            transition: all var(--transition-fast);
        }
        .badge-tag:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        .badge-rating {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-gold);
            background: rgba(212, 165, 55, 0.1);
            border: 1px solid rgba(212, 165, 55, 0.25);
            border-radius: 999px;
            padding: 4px 12px;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.2;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 44px;
            }
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }

        /* Navigation Dock */
        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1050;
            width: calc(100% - 32px);
            max-width: 1120px;
        }
        .navbar-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: var(--bg-glass);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 10px 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55), var(--shadow-glow-cyan);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .navbar-dock.scrolled {
            background: var(--bg-glass-solid);
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.7), var(--shadow-glow-purple);
        }
        .logo-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .logo-brand i {
            color: var(--accent-cyan);
            font-size: 20px;
        }
        .logo-brand:hover {
            color: #fff;
        }
        .navbar-dock .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-dock .nav-links li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .navbar-dock .nav-links li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .navbar-dock .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.2);
        }
        .navbar-dock .nav-links li a.active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 4px;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }
        .dock-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: 999px;
            padding: 8px 18px;
            border: none;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.2);
        }
        .btn-dock-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(0, 212, 255, 0.35);
        }
        .navbar-toggler-dock {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-dock:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        @media (max-width: 991px) {
            .navbar-dock .nav-links {
                display: none;
            }
            .navbar-toggler-dock {
                display: inline-flex;
            }
            .btn-dock-cta {
                display: none;
            }
        }
        @media (max-width: 575px) {
            .navbar-dock-wrapper {
                top: 10px;
                width: calc(100% - 20px);
            }
            .navbar-dock {
                padding: 8px 14px;
                border-radius: 28px;
            }
            .logo-brand {
                font-size: 16px;
                gap: 6px;
            }
            .logo-brand i {
                font-size: 16px;
            }
        }

        /* Mobile Drawer */
        .mobile-drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.65);
            z-index: 1055;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-drawer-overlay.show {
            opacity: 1;
        }
        .mobile-drawer {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: var(--bg-glass-solid);
            border-top: 1px solid var(--border-color);
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            padding: 28px 24px 36px;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.6);
        }
        .mobile-drawer.show {
            transform: translateY(0);
        }
        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .mobile-drawer .drawer-header span {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .mobile-drawer .drawer-close {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 14px;
        }
        .mobile-drawer .drawer-close:hover {
            border-color: var(--accent-red);
            color: var(--accent-red);
        }
        .mobile-drawer .drawer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-drawer .drawer-links li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-drawer .drawer-links li a:hover,
        .mobile-drawer .drawer-links li a.active {
            background: rgba(0, 212, 255, 0.06);
            color: var(--accent-cyan);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            padding: 14px 20px;
            border: none;
            width: 100%;
            transition: all var(--transition-base);
        }
        .mobile-drawer .drawer-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            transform: translateY(-1px);
        }

        /* Category Head */
        .category-head {
            padding-top: 130px;
            padding-bottom: 48px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
            min-height: 48vh;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
        }
        .category-head::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(124, 58, 237, 0.15) 0%, transparent 50%), radial-gradient(ellipse at 30% 70%, rgba(0, 212, 255, 0.08) 0%, transparent 45%);
            pointer-events: none;
        }
        .category-head .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .category-head .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .category-head .breadcrumb-custom a:hover {
            color: var(--accent-cyan);
        }
        .category-head .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 11px;
        }
        .category-head .breadcrumb-custom .current {
            color: var(--accent-cyan);
            font-weight: 500;
        }
        .category-head h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .category-head h1 {
                font-size: 44px;
            }
        }
        @media (min-width: 992px) {
            .category-head h1 {
                font-size: 48px;
            }
        }
        .category-head .head-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 680px;
            position: relative;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .category-head .head-desc {
                font-size: 17px;
            }
        }

        /* Feature Cards */
        .feature-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            transition: all var(--transition-base);
            min-height: 100%;
        }
        .feature-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .feature-card .feature-img {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .feature-card:hover .feature-img img {
            transform: scale(1.05);
        }
        .feature-card .feature-img .feature-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10, 10, 16, 0.85) 100%);
        }
        .feature-card .feature-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }
        .feature-card .feature-body {
            padding: 20px 24px 24px;
        }
        .feature-card .feature-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .feature-card .feature-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .feature-card .feature-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .feature-card .feature-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Guide List Cards */
        .guide-list-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
        }
        .guide-list-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            background: var(--bg-card-hover);
        }
        .guide-list-card .guide-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .guide-list-card .guide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .guide-list-card:hover .guide-img img {
            transform: scale(1.04);
        }
        .guide-list-card .guide-img .guide-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .guide-list-card .guide-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .guide-list-card .guide-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .guide-list-card .guide-body .guide-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex-grow: 1;
        }
        .guide-list-card .guide-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .guide-list-card .guide-meta .guide-date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .guide-list-card .guide-meta .guide-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }
        .guide-list-card .guide-meta .guide-link:hover {
            color: #4de0ff;
        }

        /* Step Path */
        .step-path-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-base);
            height: 100%;
            position: relative;
        }
        .step-path-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-path-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.25);
            color: var(--accent-cyan);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .step-path-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-path-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Stats Support */
        .stats-support {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .stats-support .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: left;
            transition: all var(--transition-base);
        }
        .stats-support .stat-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stats-support .stat-card .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.18);
            color: var(--accent-cyan);
            font-size: 18px;
            margin-bottom: 14px;
        }

        /* Tags Section */
        .tags-section .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--gradient-cta);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .subscribe-cta .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
            position: relative;
            z-index: 1;
        }
        @media (min-width: 768px) {
            .subscribe-cta .subscribe-form {
                flex-direction: row;
                gap: 12px;
            }
        }
        .subscribe-cta .subscribe-form input {
            flex: 1;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            font-size: 15px;
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }
        .subscribe-cta .subscribe-form input::placeholder {
            color: var(--text-muted);
        }
        .subscribe-cta .subscribe-form input:focus {
            outline: none;
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
        }

        /* Footer */
        .footer-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 48px;
            padding-bottom: 32px;
            position: relative;
            z-index: 1;
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--accent-cyan);
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .footer-links li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-tech-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-tech-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-tech-links span {
            color: var(--text-muted);
        }

        /* Responsive adjustments */
        @media (max-width: 767px) {
            .category-head {
                padding-top: 100px;
                padding-bottom: 36px;
                min-height: 50vh;
            }
            .category-head h1 {
                font-size: 32px;
            }
            .category-head .head-desc {
                font-size: 15px;
            }
            .feature-card .feature-img {
                height: 180px;
            }
            .guide-list-card .guide-img {
                height: 150px;
            }
            .stat-number {
                font-size: 30px;
            }
            .subscribe-cta {
                padding: 28px 20px;
            }
            .footer-section {
                padding-top: 36px;
                padding-bottom: 24px;
            }
            .footer-links {
                gap: 6px 14px;
            }
        }

        @media (max-width: 575px) {
            .category-head {
                padding-top: 90px;
            }
            .category-head h1 {
                font-size: 28px;
            }
        }

/* roulang page: category6 */
:root {
  --bg-primary: #0a0a10;
  --bg-secondary: #101018;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --bg-glass: rgba(16, 16, 24, 0.82);
  --bg-glass-solid: rgba(16, 16, 24, 0.94);
  --text-primary: #f2f2f6;
  --text-secondary: #b8b8c2;
  --text-muted: #70707c;
  --accent-cyan: #00d4ff;
  --accent-blue: #3b82f6;
  --accent-purple: #7c3aed;
  --accent-violet: #a855f7;
  --accent-gold: #d4a537;
  --accent-green: #00e88f;
  --accent-red: #ef4444;
  --border-color: #262633;
  --border-light: #32323f;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
  --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
  --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
  --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  --spacing-section: 88px;
  --spacing-section-mobile: 56px;
  --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
  --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
  --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  padding-bottom: 72px;
}

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

a:hover {
  color: #4de0ff;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

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

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

.container-custom {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}

@media (min-width: 1200px) {
  .container-custom {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (min-width: 1400px) {
  .container-custom {
    padding-left: 48px;
    padding-right: 48px;
  }
}

section {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
  position: relative;
}

@media (max-width: 767.98px) {
  section {
    padding-top: var(--spacing-section-mobile);
    padding-bottom: var(--spacing-section-mobile);
  }
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.22);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 16px;
}

.section-label i {
  font-size: 12px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 38px;
  }
}

@media (min-width: 1200px) {
  .section-title {
    font-size: 42px;
  }
}

.section-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .section-desc {
    font-size: 17px;
    margin-bottom: 48px;
  }
}

.btn {
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--transition-base);
}

.btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
  background: linear-gradient(135deg, #00e0ff 0%, #4d8ffc 40%, #8a4df0 75%, #b36eff 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-sm);
}

.btn-outline-cyan {
  border: 1px solid rgba(0, 212, 255, 0.55);
  color: var(--accent-cyan);
  background: transparent;
}

.btn-outline-cyan:hover,
.btn-outline-cyan:focus {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--accent-cyan);
  color: #4de0ff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-outline-cyan:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-sm);
}

.navbar-dock-wrapper {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1080;
  display: flex;
  justify-content: center;
  padding-left: 16px;
  padding-right: 16px;
}

.navbar-dock {
  width: 100%;
  max-width: 1200px;
  background: var(--bg-glass);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 20px rgba(0, 0, 0, 0.3);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar-dock.scrolled {
  background: var(--bg-glass-solid);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.6), 0 0 24px rgba(0, 0, 0, 0.35);
}

.logo-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo-brand i {
  color: var(--accent-cyan);
  font-size: 20px;
}

.logo-brand:hover {
  color: var(--text-primary);
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-links li a {
  display: block;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 999px;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.nav-links li a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links li a.active {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
  font-weight: 600;
}

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

.btn-dock-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  border: none;
  transition: var(--transition-base);
  white-space: nowrap;
}

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

.navbar-toggler-dock {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 18px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.navbar-toggler-dock:hover {
  background: rgba(255, 255, 255, 0.14);
}

@media (max-width: 991.98px) {
  .nav-links {
    display: none;
  }
  .btn-dock-cta {
    display: none;
  }
}

@media (min-width: 992px) {
  .navbar-toggler-dock {
    display: none;
  }
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1079;
  background: rgba(10, 10, 16, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  flex-direction: column;
  padding: 88px 32px 40px;
  overflow-y: auto;
}

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

.mobile-drawer a {
  display: block;
  padding: 14px 10px;
  font-size: 18px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.mobile-drawer a:hover,
.mobile-drawer a.active {
  color: var(--accent-cyan);
}

.mobile-drawer .btn-dock-cta {
  margin-top: 16px;
  justify-content: center;
}

.category-hero {
  padding-top: 120px;
  padding-bottom: 64px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  min-height: 50vh;
  display: flex;
  align-items: center;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.22) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.16) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.category-hero .container-custom {
  position: relative;
  z-index: 2;
}

.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb-custom a {
  color: var(--text-muted);
}

.breadcrumb-custom a:hover {
  color: var(--accent-cyan);
}

.breadcrumb-custom .current {
  color: var(--text-secondary);
}

.category-hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}

@media (min-width: 768px) {
  .category-hero-title {
    font-size: 44px;
  }
}

@media (min-width: 1200px) {
  .category-hero-title {
    font-size: 48px;
  }
}

.category-hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 28px;
}

.category-hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-muted);
}

.category-hero-meta i {
  color: var(--accent-cyan);
  margin-right: 6px;
}

.stats-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition-base);
  height: 100%;
}

.stats-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stats-card .stats-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-cyan);
}

.stats-card .stats-number {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 6px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats-card .stats-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.stats-card .stats-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.data-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.data-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.data-card .data-card-img {
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
}

.data-card .data-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.data-card .data-card-date {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.data-card .data-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.data-card .data-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.data-card .data-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.data-card .data-card-link:hover {
  color: #4de0ff;
  gap: 10px;
}

.featured-card {
  background: var(--bg-card);
  border: 1px solid rgba(0, 212, 255, 0.22);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
  height: 100%;
  position: relative;
}

.featured-card:hover {
  box-shadow: var(--shadow-glow-cyan);
  border-color: rgba(0, 212, 255, 0.4);
}

.featured-card .featured-img {
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  overflow: hidden;
}

.featured-card .featured-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.featured-card .featured-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.1);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 12px;
}

.featured-card .featured-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.featured-card .featured-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tag-link {
  display: inline-block;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 8px 20px;
  margin: 0 8px 8px 0;
  transition: var(--transition-fast);
}

.tag-link:hover {
  color: var(--accent-cyan);
  border-color: rgba(0, 212, 255, 0.45);
  background: rgba(0, 212, 255, 0.05);
}

.cta-card {
  background: var(--gradient-cta);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
  border: 1px solid var(--border-light);
}

.cta-card .cta-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.cta-card .cta-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.data-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.data-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
  gap: 16px;
  flex-wrap: wrap;
}

.data-row:last-child {
  border-bottom: none;
}

.data-row .data-row-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 180px;
}

.data-row .data-row-left img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-secondary);
}

.data-row .data-row-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.data-row .data-row-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-cyan);
  white-space: nowrap;
}

.data-row .data-row-change {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.data-row .data-row-change.up {
  color: var(--accent-green);
  background: rgba(0, 232, 143, 0.1);
}

.data-row .data-row-change.down {
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.1);
}

.chart-placeholder {
  background: var(--bg-secondary);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.chart-placeholder i {
  font-size: 36px;
  color: var(--accent-cyan);
  opacity: 0.6;
}

.btn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 999px;
  transition: var(--transition-base);
  cursor: pointer;
}

.btn-more:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

.footer-section {
  background: var(--bg-secondary);
  padding: 48px 0 24px;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

.footer-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-brand i {
  color: var(--accent-cyan);
}

.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.footer-links li a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  margin-top: 32px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-muted);
}

.footer-tech-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

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

.footer-tech-links span {
  color: var(--border-light);
}

.list-section,
.stats-section,
.featured-section,
.tags-section,
.cta-section {
  border-bottom: 1px solid rgba(38, 38, 51, 0.5);
}

@media (max-width: 767.98px) {
  .category-hero {
    min-height: 40vh;
    padding-top: 100px;
    padding-bottom: 48px;
  }
  .category-hero-title {
    font-size: 30px;
  }
  .category-hero-desc {
    font-size: 15px;
  }
  .cta-card {
    padding: 24px 20px;
  }
  .cta-card .cta-title {
    font-size: 22px;
  }
}

/* roulang page: category4 */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 72px;
        }

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

        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 576px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (min-width: 992px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        @media (min-width: 1400px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
        }

        section {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
            position: relative;
        }

        @media (max-width: 767px) {
            section {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 38px;
            }
        }

        @media (min-width: 992px) {
            .section-title {
                font-size: 42px;
            }
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        @media (min-width: 768px) {
            .section-desc {
                font-size: 17px;
                margin-bottom: 48px;
            }
        }

        .btn {
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 212, 255, 0.22);
        }

        .btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            box-shadow: none;
        }

        .btn-primary-gradient {
            background: var(--gradient-primary);
            color: #fff;
            border: none;
            font-weight: 700;
        }

        .btn-primary-gradient:hover {
            color: #fff;
            box-shadow: 0 12px 32px rgba(0, 212, 255, 0.3);
            filter: saturate(1.1);
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
            font-weight: 600;
        }

        .btn-outline-dark:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.18);
            font-weight: 600;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        /* Navbar Dock */
        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1050;
            width: calc(100% - 32px);
            max-width: 1140px;
            pointer-events: none;
        }

        .navbar-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 10px 20px;
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.42), 0 0 20px rgba(0, 212, 255, 0.06);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .navbar-dock.scrolled {
            background: var(--bg-glass-solid);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 0 24px rgba(124, 58, 237, 0.1);
        }

        .logo-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            padding: 4px 0;
        }

        .logo-brand i {
            font-size: 20px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -moz-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .logo-brand:hover {
            color: var(--text-primary);
        }

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

        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.1);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.25);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }

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

        .btn-dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: 999px;
            transition: all var(--transition-base);
            white-space: nowrap;
            border: none;
        }

        .btn-dock-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.28);
            filter: saturate(1.1);
        }

        .navbar-toggler-dock {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            padding: 0;
            font-size: 20px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: 50%;
            cursor: pointer;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .navbar-toggler-dock:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1049;
            background: var(--bg-glass-solid);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            padding: 100px 32px 40px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            display: flex;
        }

        .mobile-nav-drawer a {
            display: block;
            padding: 16px 20px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            transition: all var(--transition-fast);
        }

        .mobile-nav-drawer a:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .mobile-nav-drawer a.active {
            background: rgba(0, 212, 255, 0.1);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }
            .btn-dock-cta {
                display: none;
            }
            .navbar-toggler-dock {
                display: inline-flex;
            }
            .navbar-dock {
                padding: 8px 14px;
            }
            .logo-brand {
                font-size: 16px;
            }
            .logo-brand i {
                font-size: 18px;
            }
        }

        /* Category Header */
        .category-header {
            padding-top: 140px;
            padding-bottom: 64px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-header::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-cyan);
        }

        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .breadcrumb-custom .current {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        .category-header h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .category-header h1 {
                font-size: 42px;
            }
        }

        @media (min-width: 992px) {
            .category-header h1 {
                font-size: 46px;
            }
        }

        .category-header .header-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            position: relative;
            z-index: 2;
        }

        @media (min-width: 768px) {
            .category-header .header-desc {
                font-size: 17px;
            }
        }

        /* Cards */
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
        }

        .card-dark:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .card-dark .card-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-secondary);
        }

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

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

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

        .card-dark .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-dark .card-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .card-dark .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        /* Rating Badge */
        .rating-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 16px;
            font-weight: 800;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: var(--radius-sm);
            padding: 4px 12px;
            line-height: 1;
            letter-spacing: -0.01em;
            box-shadow: var(--shadow-glow-cyan);
        }

        .rating-badge.rating-high {
            background: linear-gradient(135deg, #00e88f 0%, #00d4ff 100%);
            box-shadow: 0 0 20px rgba(0, 232, 143, 0.2);
        }

        .rating-badge.rating-medium {
            background: linear-gradient(135deg, #3b82f6 0%, #7c3aed 100%);
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
        }

        .rating-badge.rating-good {
            background: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
            box-shadow: 0 0 20px rgba(124, 58, 237, 0.2);
        }

        .rating-stars {
            color: var(--accent-gold);
            font-size: 12px;
            letter-spacing: 1px;
        }

        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        @media (min-width: 768px) {
            .stats-strip {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: left;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .stat-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-card .stat-value {
            font-size: 36px;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 8px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -moz-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.02em;
        }

        .stat-card .stat-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Featured Cards */
        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
            transform: translateY(-4px);
        }

        .featured-card .featured-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
            flex-shrink: 0;
        }

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

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

        .featured-card .featured-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .featured-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .featured-card .featured-text {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
        }

        /* Compare Section */
        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .compare-row {
            display: grid;
            grid-template-columns: 1fr;
            gap: 10px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-base);
        }

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

        .compare-row:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .compare-item .compare-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: var(--radius-sm);
            color: var(--accent-cyan);
            font-size: 16px;
        }

        .compare-item .compare-icon.icon-purple {
            background: rgba(124, 58, 237, 0.08);
            border-color: rgba(124, 58, 237, 0.2);
            color: var(--accent-purple);
        }

        .compare-item .compare-content h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .compare-item .compare-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

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

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag-item:hover {
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
            box-shadow: var(--shadow-glow-cyan);
        }

        /* CTA Section */
        .cta-section {
            background: var(--gradient-cta);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 34px;
            }
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 2;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 20px;
            font-size: 15px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            outline: none;
            transition: all var(--transition-fast);
        }

        .subscribe-form input:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
        }

        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }

        /* Footer */
        .footer-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand i {
            font-size: 22px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -moz-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            list-style: none;
            margin: 0;
            padding: 0;
            justify-content: flex-start;
        }

        @media (min-width: 992px) {
            .footer-links {
                justify-content: flex-end;
            }
        }

        .footer-links li a {
            display: inline-block;
            padding: 6px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-xs);
            transition: all var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
        }

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

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

        /* List Card Grid */
        .gear-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 576px) {
            .gear-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 992px) {
            .gear-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
        }

        /* Rating badge on card */
        .card-rating-wrap {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 3;
        }

        .gear-type-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 999px;
            padding: 3px 12px;
            margin-bottom: 8px;
        }

        .load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }

        @media (max-width: 767px) {
            .category-header {
                padding-top: 110px;
                padding-bottom: 48px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .stat-card .stat-value {
                font-size: 28px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }
            .rating-badge {
                font-size: 14px;
                padding: 3px 10px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0a0a10;
            --bg-secondary: #101018;
            --bg-card: #16161f;
            --bg-card-hover: #1c1c28;
            --bg-glass: rgba(16, 16, 24, 0.82);
            --bg-glass-solid: rgba(16, 16, 24, 0.94);
            --text-primary: #f2f2f6;
            --text-secondary: #b8b8c2;
            --text-muted: #70707c;
            --accent-cyan: #00d4ff;
            --accent-blue: #3b82f6;
            --accent-purple: #7c3aed;
            --accent-violet: #a855f7;
            --accent-gold: #d4a537;
            --accent-green: #00e88f;
            --accent-red: #ef4444;
            --border-color: #262633;
            --border-light: #32323f;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 8px;
            --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);
            --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.38);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
            --shadow-glow-cyan: 0 0 24px rgba(0, 212, 255, 0.18);
            --shadow-glow-purple: 0 0 24px rgba(124, 58, 237, 0.18);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            --spacing-section: 88px;
            --spacing-section-mobile: 56px;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #3b82f6 40%, #7c3aed 75%, #a855f7 100%);
            --gradient-hero: linear-gradient(160deg, #0a0a10 0%, #10101c 35%, #1a0f2e 70%, #0d1420 100%);
            --gradient-cta: linear-gradient(135deg, #10101c 0%, #1c1040 45%, #0f2038 100%);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 24px;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        a:hover {
            color: #4de0ff;
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        /* ============ 容器 ============ */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ 通用板块 ============ */
        section {
            padding-top: var(--spacing-section-mobile);
            padding-bottom: var(--spacing-section-mobile);
            position: relative;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.22);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }
        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ============ 导航 Dock ============ */
        .navbar-dock-wrapper {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
            z-index: 1050;
            pointer-events: none;
        }

        .navbar-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: var(--bg-glass);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 8px 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(0, 212, 255, 0.06) inset;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .navbar-dock.scrolled {
            background: var(--bg-glass-solid);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 212, 255, 0.1) inset;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .logo-brand i {
            font-size: 22px;
            color: var(--accent-cyan);
            filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.5));
        }
        .logo-brand:hover {
            color: #ffffff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.1);
            font-weight: 600;
        }

        .dock-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border: none;
            border-radius: 999px;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
        }
        .btn-dock-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.38);
        }
        .btn-dock-cta:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        .btn-dock-cta:active {
            transform: translateY(1px);
        }

        .navbar-toggler-dock {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 50%;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .navbar-toggler-dock:hover {
            background: rgba(0, 212, 255, 0.1);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        /* 移动端抽屉菜单 */
        .mobile-nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1040;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-drawer {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1055;
            background: var(--bg-glass-solid);
            border-top: 1px solid var(--border-light);
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            padding: 24px 20px 32px;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
            box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-nav-drawer.open {
            transform: translateY(0);
        }
        .mobile-nav-drawer .drawer-handle {
            width: 40px;
            height: 4px;
            background: var(--border-light);
            border-radius: 999px;
            margin: 0 auto 20px;
        }
        .mobile-nav-drawer ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-drawer ul li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .mobile-nav-drawer ul li a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }
        .mobile-nav-drawer ul li a.active {
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.08);
            font-weight: 600;
        }
        .mobile-nav-drawer .drawer-cta {
            display: flex;
            width: 100%;
            justify-content: center;
            padding: 14px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border: none;
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
        }
        .mobile-nav-drawer .drawer-cta:hover {
            color: #fff;
            transform: translateY(-2px);
        }

        /* ============ 分类页头部 ============ */
        .category-hero {
            padding-top: 120px;
            padding-bottom: 48px;
            background: var(--gradient-hero);
            position: relative;
            overflow: hidden;
            min-height: 48vh;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60%;
            height: 100%;
            background: url('/assets/images/2a180fe6a067268b.jpg') center/cover no-repeat;
            opacity: 0.12;
            mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-primary) 0%, transparent 100%);
            pointer-events: none;
        }
        .category-hero .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            position: relative;
            z-index: 5;
        }
        .category-hero .breadcrumb-custom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .category-hero .breadcrumb-custom a:hover {
            color: var(--accent-cyan);
        }
        .category-hero .breadcrumb-custom .sep {
            color: var(--text-muted);
            font-size: 11px;
        }
        .category-hero .breadcrumb-custom .current {
            color: var(--accent-cyan);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            position: relative;
            z-index: 5;
        }
        .category-hero .category-lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 680px;
            position: relative;
            z-index: 5;
        }

        /* ============ 数据徽章条 ============ */
        .stats-strip {
            padding-top: 32px;
            padding-bottom: 32px;
            margin-top: -20px;
        }
        .stats-strip .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-badge-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .stat-badge-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20%;
            right: 20%;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 0 0 4px 4px;
            opacity: 0.7;
        }
        .stat-badge-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md), var(--shadow-glow-cyan);
            border-color: rgba(0, 212, 255, 0.3);
        }
        .stat-badge-card .stat-number {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.2;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            margin-bottom: 6px;
        }
        .stat-badge-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ 课程列表卡片 ============ */
        .course-list-section {
            padding-top: 16px;
            padding-bottom: 40px;
        }
        .course-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .course-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md), var(--shadow-glow-purple);
            border-color: rgba(124, 58, 237, 0.35);
            background: var(--bg-card-hover);
        }
        .course-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .course-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .course-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .course-card .card-img-wrap .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(10, 10, 16, 0.8);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 212, 255, 0.3);
            backdrop-filter: blur(4px);
        }
        .course-card .card-body-custom {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .course-card .card-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .course-card .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .course-card .card-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 14px;
            flex-grow: 1;
        }
        .course-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }
        .course-card .card-link i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }
        .course-card .card-link:hover {
            color: #4de0ff;
        }
        .course-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ============ 精选高亮 ============ */
        .highlight-section {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .highlight-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-md);
            height: 100%;
        }
        .highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
            border-color: rgba(0, 212, 255, 0.3);
        }
        .highlight-card .highlight-img {
            aspect-ratio: 21/10;
            overflow: hidden;
        }
        .highlight-card .highlight-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .highlight-card:hover .highlight-img img {
            transform: scale(1.04);
        }
        .highlight-card .highlight-body {
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .highlight-card .highlight-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-purple);
            background: rgba(124, 58, 237, 0.1);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .highlight-card .highlight-title {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .highlight-card .highlight-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .highlight-card .highlight-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }
        .highlight-card .highlight-link:hover {
            color: #4de0ff;
        }
        .highlight-card .highlight-link i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }
        .highlight-card .highlight-link:hover i {
            transform: translateX(4px);
        }

        /* ============ 训练体系阶段路径 ============ */
        .pathway-section {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .pathway-track {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
        }
        .pathway-step {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            position: relative;
        }
        .pathway-step::before {
            content: '';
            position: absolute;
            left: 22px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, rgba(0, 212, 255, 0.3), rgba(124, 58, 237, 0.3));
            border-radius: 2px;
        }
        .pathway-step:first-child::before {
            top: 50%;
        }
        .pathway-step:last-child::before {
            bottom: 50%;
        }
        .pathway-step .step-marker {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-cyan);
            flex-shrink: 0;
            z-index: 2;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
        }
        .pathway-step .step-content {
            flex-grow: 1;
            padding-bottom: 8px;
        }
        .pathway-step .step-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .pathway-step .step-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* ============ 标签区 ============ */
        .tags-section {
            padding-top: 32px;
            padding-bottom: 32px;
        }
        .tags-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            transition: all var(--transition-base);
        }
        .tag-link:hover {
            color: var(--accent-cyan);
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(0, 212, 255, 0.06);
            transform: translateY(-2px);
        }

        /* ============ 订阅 CTA ============ */
        .subscribe-cta-section {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .subscribe-cta-card {
            background: var(--gradient-cta);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .subscribe-cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(0, 212, 255, 0.08);
            pointer-events: none;
        }
        .subscribe-cta-card .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: flex-start;
        }
        .subscribe-cta-card .cta-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-primary);
        }
        .subscribe-cta-card .cta-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
            max-width: 540px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            width: 100%;
            max-width: 480px;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            font-size: 15px;
            background: rgba(10, 10, 16, 0.7);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            transition: all var(--transition-fast);
            outline: none;
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
        }
        .subscribe-form .btn-subscribe {
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
        }
        .subscribe-form .btn-subscribe:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.4);
        }
        .subscribe-form .btn-subscribe:active {
            transform: translateY(1px);
        }

        /* ============ 查看更多按钮 ============ */
        .view-more-wrapper {
            display: flex;
            justify-content: center;
            padding-top: 16px;
            padding-bottom: 24px;
        }
        .btn-view-more {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .btn-view-more:hover {
            color: var(--accent-cyan);
            border-color: rgba(0, 212, 255, 0.4);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md), var(--shadow-glow-cyan);
        }
        .btn-view-more i {
            font-size: 13px;
            transition: transform var(--transition-fast);
        }
        .btn-view-more:hover i {
            transform: translateX(4px);
        }

        /* ============ 按钮通用 ============ */
        .btn {
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary-gradient {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 212, 255, 0.25);
        }
        .btn-primary-gradient:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.4);
        }
        .btn-outline-cyan {
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 212, 255, 0.4);
        }
        .btn-outline-cyan:hover {
            color: #4de0ff;
            border-color: rgba(0, 212, 255, 0.7);
            background: rgba(0, 212, 255, 0.06);
            transform: translateY(-2px);
        }

        /* ============ 页脚 ============ */
        .footer-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
            margin-top: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-brand i {
            font-size: 22px;
            color: var(--accent-cyan);
            filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.5));
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
            max-width: 360px;
            margin-bottom: 0;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .footer-links li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: flex-start;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-tech-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-tech-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-tech-links span {
            color: var(--border-light);
        }

        /* ============ 响应式 ============ */
        @media (min-width: 576px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
            .section-title {
                font-size: 32px;
            }
            .category-hero h1 {
                font-size: 42px;
            }
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
            section {
                padding-top: var(--spacing-section);
                padding-bottom: var(--spacing-section);
            }
            .section-title {
                font-size: 36px;
            }
            .category-hero h1 {
                font-size: 46px;
            }
            .course-card .card-title {
                font-size: 19px;
            }
            .stats-strip .stats-row {
                grid-template-columns: repeat(4, 1fr);
            }
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
            .subscribe-cta-card .cta-inner {
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                justify-content: space-between;
            }
            .subscribe-cta-card .cta-title {
                font-size: 32px;
            }
            .pathway-step {
                gap: 24px;
            }
        }
        @media (min-width: 992px) {
            .container-custom {
                padding-left: 48px;
                padding-right: 48px;
            }
            .section-title {
                font-size: 40px;
            }
            .category-hero h1 {
                font-size: 48px;
            }
        }
        @media (max-width: 991.98px) {
            .nav-links {
                display: none;
            }
            .btn-dock-cta {
                display: none;
            }
            .navbar-toggler-dock {
                display: flex;
            }
            .category-hero {
                min-height: 40vh;
                padding-top: 100px;
            }
        }
        @media (max-width: 767.98px) {
            .stats-strip .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-badge-card .stat-number {
                font-size: 30px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .subscribe-cta-card {
                padding: 32px 24px;
            }
            .subscribe-cta-card .cta-title {
                font-size: 26px;
            }
            .highlight-card .highlight-title {
                font-size: 19px;
            }
            .pathway-step .step-marker {
                width: 38px;
                height: 38px;
                font-size: 14px;
            }
            .pathway-step::before {
                left: 18px;
            }
        }
        @media (max-width: 519.98px) {
            .stats-strip .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-badge-card {
                padding: 16px 12px;
            }
            .stat-badge-card .stat-number {
                font-size: 26px;
            }
            .stat-badge-card .stat-label {
                font-size: 12px;
            }
            .category-hero {
                min-height: 38vh;
                padding-top: 90px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .category-lead {
                font-size: 14px;
            }
            .course-card .card-body-custom {
                padding: 16px 14px 14px;
            }
            .course-card .card-title {
                font-size: 16px;
            }
            .course-card .card-desc {
                font-size: 13px;
            }
            .highlight-card .highlight-body {
                padding: 18px 16px;
            }
            .subscribe-cta-card {
                padding: 24px 18px;
            }
            .subscribe-cta-card .cta-title {
                font-size: 22px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .footer-section {
                padding: 40px 0 24px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}