/* roulang page: index */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        *,
        *::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);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-base);
            white-space: nowrap;
            min-height: 44px;
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.2);
        }

        .nav-hamburger {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition-fast);
        }

        .nav-hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-hamburger:hover {
            background: rgba(0, 194, 255, 0.1);
            border-color: var(--cyan-bright);
        }

        /* Mobile Drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(3, 11, 22, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 88px 32px 40px;
            flex-direction: column;
            gap: 0;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }

        .mobile-drawer.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
        }

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

        .mobile-drawer a.active::after {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.6);
        }

        .mobile-drawer .drawer-close {
            position: absolute;
            top: 20px;
            right: 24px;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.04);
            font-size: 20px;
            color: var(--text-primary);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            background: url('/assets/images/93ef45a5340c457f.webp') center / cover no-repeat;
            background-color: var(--bg-primary);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(3, 11, 22, 0.88) 0%, rgba(3, 11, 22, 0.65) 40%, rgba(3, 11, 22, 0.5) 70%, rgba(3, 11, 22, 0.82) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 194, 255, 0.14) 0%, transparent 65%);
            z-index: 1;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-content {
            max-width: 640px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-neon);
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid rgba(0, 194, 255, 0.22);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .hero-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.7);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        .hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--cyan-neon), var(--blue-core));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            min-height: 48px;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 32px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--cyan-neon);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all var(--transition-base);
            min-height: 48px;
            letter-spacing: 0.3px;
        }

        .btn-secondary:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.18);
            transform: translateY(-2px);
        }

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

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .trust-item .icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--cyan-neon);
            flex-shrink: 0;
        }

        /* Hero metric badges */
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-metric {
            padding: 10px 20px;
            border-radius: var(--radius-md);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .hero-metric .metric-value {
            font-family: var(--font-condensed);
            font-size: 20px;
            font-weight: 700;
            color: var(--cyan-neon);
            letter-spacing: 0.5px;
        }

        /* ===== Section common ===== */
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: 40px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--cyan-bright);
            box-shadow: 0 0 6px rgba(0, 194, 255, 0.5);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        /* ===== Dashboard metrics ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            padding: 24px;
            border-radius: var(--radius-xl);
            background: var(--glass-bg-medium);
            border: 1px solid var(--glass-border-light);
            border-top: 1px solid var(--glass-highlight);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .metric-card .metric-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(0, 194, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .metric-card .metric-value {
            font-family: var(--font-condensed);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .metric-trend {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            height: 32px;
            width: 100%;
        }

        .metric-trend .bar {
            flex: 1;
            border-radius: 3px 3px 0 0;
            background: rgba(0, 194, 255, 0.35);
            transition: all var(--transition-base);
            min-height: 4px;
        }

        .metric-trend .bar:nth-child(1) {
            height: 30%;
        }
        .metric-trend .bar:nth-child(2) {
            height: 45%;
        }
        .metric-trend .bar:nth-child(3) {
            height: 38%;
        }
        .metric-trend .bar:nth-child(4) {
            height: 62%;
        }
        .metric-trend .bar:nth-child(5) {
            height: 55%;
        }
        .metric-trend .bar:nth-child(6) {
            height: 78%;
        }
        .metric-trend .bar:nth-child(7) {
            height: 70%;
        }
        .metric-trend .bar:nth-child(8) {
            height: 92%;
        }

        .metric-card:hover .metric-trend .bar {
            background: rgba(0, 194, 255, 0.6);
        }

        .metric-trend .bar.peak {
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
        }

        /* ===== Services grid ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            padding: 28px;
            border-radius: var(--radius-xl);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-top: 1px solid var(--glass-highlight);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .service-card .service-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-md);
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid rgba(0, 194, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Comparison ===== */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .comparison-card {
            padding: 28px;
            border-radius: var(--radius-xl);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            position: relative;
            transition: all var(--transition-base);
        }

        .comparison-card.highlighted {
            border-color: rgba(0, 194, 255, 0.4);
            background: rgba(0, 194, 255, 0.06);
            box-shadow: 0 0 24px rgba(0, 194, 255, 0.1);
        }

        .comparison-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
        }

        .comparison-card .comparison-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .comparison-card .comparison-label.old {
            color: var(--rose-accent);
            background: rgba(244, 63, 94, 0.08);
            border: 1px solid rgba(244, 63, 94, 0.2);
        }

        .comparison-card .comparison-label.new {
            color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid rgba(0, 194, 255, 0.22);
        }

        .comparison-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .comparison-card ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .comparison-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .comparison-card ul li::before {
            content: '—';
            flex-shrink: 0;
            color: var(--text-muted);
        }

        .comparison-card.highlighted ul li::before {
            content: '▲';
            color: var(--cyan-bright);
            font-size: 10px;
            margin-top: 4px;
        }

        .comparison-card.highlighted ul li {
            color: var(--text-primary);
        }

        .comparison-diff {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--cyan-neon);
            font-weight: 500;
        }

        .comparison-diff .diff-bar {
            flex: 1;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }

        .comparison-diff .diff-bar .fill {
            height: 100%;
            width: 78%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
        }

        /* ===== Milestones ===== */
        .milestones {
            position: relative;
            padding-left: 32px;
        }

        .milestones::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, rgba(0, 194, 255, 0.3), rgba(0, 194, 255, 0.08));
        }

        .milestone-item {
            position: relative;
            padding: 0 0 36px 28px;
        }

        .milestone-item:last-child {
            padding-bottom: 0;
        }

        .milestone-item::before {
            content: '';
            position: absolute;
            left: -27px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 2px solid var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.5);
        }

        .milestone-item .year {
            font-family: var(--font-condensed);
            font-size: 16px;
            font-weight: 700;
            color: var(--cyan-neon);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .milestone-item .milestone-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .milestone-item .milestone-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== News list ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-card {
            display: flex;
            gap: 20px;
            padding: 18px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
            overflow: hidden;
        }

        .news-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .news-card .news-img {
            width: 180px;
            height: 110px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-tertiary);
        }

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

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

        .news-card .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .news-card .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-card .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            flex: 1;
        }

        .news-card .news-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-neon);
            align-self: flex-start;
            transition: all var(--transition-fast);
        }

        .news-card .news-more::after {
            content: '→';
            transition: transform var(--transition-fast);
        }

        .news-card .news-more:hover {
            color: var(--cyan-bright);
        }

        .news-card .news-more:hover::after {
            transform: translateX(4px);
        }

        /* ===== Brand intro ===== */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro .brand-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .brand-intro .brand-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .brand-intro .brand-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            background: var(--bg-tertiary);
            min-height: 280px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro .brand-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== Scene cards ===== */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scene-card {
            border-radius: var(--radius-xl);
            overflow: hidden;
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .scene-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .scene-card .scene-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

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

        .scene-card:hover .scene-img img {
            transform: scale(1.06);
        }

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

        .scene-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

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

        /* ===== Platform guarantee ===== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 22px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
        }

        .guarantee-item:hover {
            border-color: rgba(0, 194, 255, 0.25);
            transform: translateY(-2px);
        }

        .guarantee-item .g-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid rgba(0, 194, 255, 0.16);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--cyan-neon);
            flex-shrink: 0;
        }

        .guarantee-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Quick answers ===== */
        .qa-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .qa-item {
            padding: 22px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
        }

        .qa-item:hover {
            border-color: rgba(0, 194, 255, 0.25);
        }

        .qa-item .qa-q {
            font-size: 16px;
            font-weight: 600;
            color: var(--cyan-neon);
            margin-bottom: 8px;
        }

        .qa-item .qa-a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            text-align: left;
            width: 100%;
            min-height: 44px;
            flex-wrap: wrap;
        }

        .faq-question:hover {
            color: var(--cyan-neon);
        }

        .faq-question .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .faq-question.active {
            color: var(--cyan-neon);
        }

        .faq-question.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--cyan-neon);
            border-color: rgba(0, 194, 255, 0.3);
            background: rgba(0, 194, 255, 0.08);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 200px;
            padding: 0 0 20px 0;
        }

        /* ===== Form ===== */
        .form-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .form-info h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .form-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .form-info .form-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .form-info .form-points li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .form-info .form-points li::before {
            content: '●';
            color: var(--cyan-bright);
            font-size: 8px;
        }

        .form-card {
            padding: 32px;
            border-radius: var(--radius-xl);
            background: var(--glass-bg-medium);
            border: 1px solid var(--glass-border-light);
            border-top: 1px solid var(--glass-highlight);
            box-shadow: var(--shadow-card);
        }

        .form-card .form-group {
            margin-bottom: 18px;
        }

        .form-card label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-card input,
        .form-card select,
        .form-card textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-fast);
            min-height: 44px;
        }

        .form-card input:focus,
        .form-card select:focus,
        .form-card textarea:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
            outline: none;
            background: rgba(255, 255, 255, 0.08);
        }

        .form-card textarea {
            resize: vertical;
            min-height: 100px;
        }

        .form-card select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237D8FA3' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .form-card .form-submit {
            width: 100%;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            min-height: 48px;
            letter-spacing: 0.3px;
            margin-top: 6px;
        }

        .form-card .form-submit:hover {
            box-shadow: 0 0 32px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .form-card .form-submit:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.3);
        }

        .form-card .form-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--cyan-neon);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

        .footer-bottom .footer-links a:hover {
            color: var(--cyan-neon);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 38px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenes-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .form-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
                --nav-height: 60px;
            }

            .nav-menu {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .mobile-drawer {
                display: flex;
            }

            .hero {
                min-height: 70vh;
                padding-top: calc(var(--nav-height) + 24px);
                padding-bottom: 36px;
            }

            .hero h1 {
                font-size: 28px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .hero-trust {
                gap: 16px;
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-metrics {
                gap: 8px;
            }

            .hero-metric {
                padding: 8px 14px;
                font-size: 12px;
            }

            .hero-metric .metric-value {
                font-size: 16px;
            }

            .section-title {
                font-size: 24px;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .comparison-wrap {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scenes-grid {
                grid-template-columns: 1fr;
            }

            .guarantee-grid {
                grid-template-columns: 1fr;
            }

            .qa-grid {
                grid-template-columns: 1fr;
            }

            .news-card {
                flex-direction: column;
                gap: 14px;
            }

            .news-card .news-img {
                width: 100%;
                height: 160px;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .form-card {
                padding: 20px;
            }
        }

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

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }

            .section {
                padding: 44px 0;
            }

            .section-title {
                font-size: 21px;
            }

            .metric-card {
                padding: 18px;
            }

            .service-card {
                padding: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 64px;
            --section-gap-mobile: 48px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.25;
        }

        p {
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.04);
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            position: relative;
            transition: background var(--transition-fast);
        }

        .nav-toggle span::before,
        .nav-toggle span::after {
            content: '';
            position: absolute;
            left: 0;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform var(--transition-base);
        }

        .nav-toggle span::before {
            top: -6px;
        }

        .nav-toggle span::after {
            bottom: -6px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(3, 11, 22, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
        }

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

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
            font-size: 12px;
        }

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

        /* ===== Page Head (Compact) ===== */
        .page-head {
            padding: calc(var(--nav-height) + 48px) 0 40px;
            position: relative;
            background:
                radial-gradient(ellipse at 20% 20%, rgba(22, 119, 255, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 70%, rgba(0, 194, 255, 0.06) 0%, transparent 45%),
                radial-gradient(ellipse at 50% 100%, rgba(139, 92, 246, 0.05) 0%, transparent 40%),
                var(--bg-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .page-head-inner {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .page-head h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .page-head h1 .accent {
            color: var(--cyan-bright);
        }

        .page-head-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 780px;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .filter-btn {
            padding: 8px 18px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: all var(--transition-fast);
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }

        .filter-btn:hover {
            color: var(--cyan-neon);
            border-color: rgba(0, 194, 255, 0.35);
            background: rgba(0, 194, 255, 0.06);
        }

        .filter-btn.active {
            color: var(--cyan-bright);
            border-color: rgba(0, 194, 255, 0.45);
            background: rgba(0, 194, 255, 0.10);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.18);
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }

        .section-head .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 420px;
            text-align: right;
        }

        /* ===== Data Summary Cards ===== */
        .data-summary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-summary-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .data-summary-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        }

        .data-summary-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .data-summary-card .stat-value {
            font-family: var(--font-condensed);
            font-size: 32px;
            font-weight: 700;
            color: var(--cyan-bright);
            line-height: 1.2;
            letter-spacing: 0.5px;
            text-shadow: 0 0 16px rgba(0, 194, 255, 0.35);
        }

        .data-summary-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }

        .data-summary-card .stat-trend {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-top: 10px;
            font-size: 12px;
            color: var(--cyan-neon);
        }

        .data-summary-card .stat-trend.down {
            color: var(--rose-accent);
        }

        /* ===== Event List ===== */
        .event-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .event-card {
            display: flex;
            gap: 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 16px;
            transition: all var(--transition-base);
            align-items: flex-start;
        }

        .event-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .event-card-img {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .event-card-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .event-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 194, 255, 0.2);
        }

        .tag-purple {
            background: rgba(139, 92, 246, 0.1);
            color: #C4B5FD;
            border-color: rgba(139, 92, 246, 0.25);
        }

        .tag-rose {
            background: rgba(244, 63, 94, 0.1);
            color: #FDA4AF;
            border-color: rgba(244, 63, 94, 0.25);
        }

        .event-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .event-card .event-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .event-card .event-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
        }

        .event-card .card-link {
            margin-top: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-bright);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            padding-top: 6px;
        }

        .event-card .card-link:hover {
            color: var(--cyan-neon);
            gap: 8px;
        }

        .btn-outline-small {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
            min-height: 44px;
        }

        .btn-outline-small:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
        }

        /* ===== Trend Panel ===== */
        .trend-panel {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-xl);
            padding: 28px;
            position: relative;
            overflow: hidden;
        }

        .trend-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 194, 255, 0.35), transparent);
        }

        .trend-panel h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .trend-panel .trend-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .trend-chart {
            display: flex;
            align-items: flex-end;
            gap: 10px;
            height: 140px;
            padding: 10px 0;
        }

        .trend-bar {
            flex: 1;
            border-radius: 4px 4px 0 0;
            background: linear-gradient(180deg, var(--cyan-bright), rgba(0, 194, 255, 0.15));
            min-height: 12px;
            position: relative;
            transition: all var(--transition-base);
            box-shadow: 0 0 10px rgba(0, 194, 255, 0.2);
        }

        .trend-bar:hover {
            background: linear-gradient(180deg, var(--cyan-neon), rgba(41, 214, 230, 0.25));
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.4);
        }

        .trend-bar::after {
            content: attr(data-value);
            position: absolute;
            top: -22px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            color: var(--text-muted);
            font-family: var(--font-condensed);
            white-space: nowrap;
        }

        .trend-labels {
            display: flex;
            gap: 10px;
            margin-top: 8px;
        }

        .trend-labels span {
            flex: 1;
            text-align: center;
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }

        /* ===== Topic Grid ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .topic-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 22px;
            position: relative;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
        }

        .topic-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .topic-card .topic-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid rgba(0, 194, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--cyan-neon);
        }

        .topic-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== News Mini List ===== */
        .news-mini-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-mini-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

        .news-mini-item:last-child {
            border-bottom: none;
        }

        .news-mini-item:hover {
            padding-left: 8px;
        }

        .news-mini-item .news-date {
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
            width: 76px;
            font-family: var(--font-condensed);
        }

        .news-mini-item .news-title {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            flex: 1;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }

        .news-mini-item:hover .news-title {
            color: var(--cyan-neon);
        }

        .news-mini-item .news-arrow {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .news-mini-item:hover .news-arrow {
            color: var(--cyan-bright);
            transform: translateX(4px);
        }

        /* ===== CTA Panel ===== */
        .cta-panel {
            background:
                radial-gradient(ellipse at 30% 30%, rgba(22, 119, 255, 0.12) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 75%, rgba(0, 194, 255, 0.08) 0%, transparent 45%),
                var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 194, 255, 0.4), transparent);
        }

        .cta-info h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .cta-info p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 460px;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(0, 194, 255, 0.5);
            outline-offset: 4px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid rgba(0, 194, 255, 0.4);
            outline-offset: 4px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

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

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

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
            font-size: 13px;
        }

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

        .footer-links span {
            color: rgba(255, 255, 255, 0.2);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .data-summary-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .event-list {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 60px;
            }

            .nav-menu {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-head {
                padding: calc(var(--nav-height) + 32px) 0 32px;
            }

            .page-head h1 {
                font-size: 28px;
            }

            .page-head-desc {
                font-size: 14px;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

            .section-head .section-sub {
                text-align: left;
            }

            .data-summary-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .data-summary-card {
                padding: 18px 16px;
            }

            .data-summary-card .stat-value {
                font-size: 24px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .event-card {
                flex-direction: column;
                gap: 12px;
            }

            .event-card-img {
                width: 100%;
                height: 160px;
            }

            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }

            .btn-primary {
                width: 100%;
                justify-content: center;
            }

            .trend-panel {
                padding: 20px 16px;
            }

            .trend-chart {
                gap: 6px;
                height: 100px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-head h1 {
                font-size: 24px;
            }

            .data-summary-grid {
                grid-template-columns: 1fr;
            }

            .filter-bar {
                gap: 6px;
            }

            .filter-btn {
                padding: 8px 14px;
                font-size: 12px;
                min-height: 40px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .news-mini-item {
                flex-wrap: wrap;
                gap: 8px;
            }

            .news-mini-item .news-date {
                width: auto;
            }

            .cta-info h2 {
                font-size: 20px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        @media (max-width: 1024px) {
            :root {
                --section-gap: 56px;
                --nav-height: 60px;
            }
        }

        *,
        *::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);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-base);
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.2);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: transparent;
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(3, 11, 22, 0.97);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
        }

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

        .mobile-menu-inner {
            max-width: 420px;
            margin: 0 auto;
        }

        .mobile-menu-inner a {
            display: block;
            padding: 18px 0;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
        }

        .mobile-menu-inner a:hover,
        .mobile-menu-inner a.active {
            color: var(--cyan-neon);
        }

        /* ===== Breadcrumb + Compact Header ===== */
        .compact-header {
            padding-top: calc(var(--nav-height) + 36px);
            padding-bottom: 28px;
            background: linear-gradient(180deg, rgba(0, 194, 255, 0.04) 0%, transparent 100%);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }

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

        .compact-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .compact-header .page-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 780px;
            margin-bottom: 20px;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 10px 0;
        }

        .filter-btn {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--glass-bg-medium);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
            min-height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .filter-btn:hover {
            border-color: rgba(0, 194, 255, 0.35);
            color: var(--text-primary);
            background: rgba(0, 194, 255, 0.06);
        }

        .filter-btn.active {
            color: var(--cyan-bright);
            border-color: rgba(0, 194, 255, 0.5);
            background: rgba(0, 194, 255, 0.12);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.15);
        }

        /* ===== Section Base ===== */
        main {
            display: block;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        .section-tight {
            padding: 40px 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
            margin-bottom: 28px;
        }

        /* ===== Data Summary Cards ===== */
        .data-summary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-summary-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .data-summary-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--glass-highlight);
        }

        .data-summary-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .data-summary-card .data-number {
            font-family: var(--font-condensed);
            font-size: 32px;
            font-weight: 700;
            color: var(--cyan-bright);
            line-height: 1.2;
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(0, 194, 255, 0.4);
            letter-spacing: 1px;
        }

        .data-summary-card .data-label {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        .data-summary-card .data-trend {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            color: var(--cyan-neon);
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        /* ===== Guides List ===== */
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .guide-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--glass-highlight);
            z-index: 1;
        }

        .guide-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .guide-card .card-image {
            position: relative;
            width: 100%;
            height: 210px;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .guide-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .guide-card .card-image .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 500;
            color: #fff;
            background: rgba(0, 194, 255, 0.28);
            border: 1px solid rgba(0, 194, 255, 0.4);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            letter-spacing: 0.3px;
        }

        .guide-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .guide-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 10px;
            transition: color var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .guide-card:hover .card-title {
            color: var(--cyan-neon);
        }

        .guide-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .guide-card .card-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
            padding: 4px 0;
        }

        .guide-card .card-link .arrow {
            transition: transform var(--transition-fast);
            display: inline-block;
        }

        .guide-card .card-link:hover .arrow {
            transform: translateX(3px);
        }

        .guides-more {
            display: flex;
            justify-content: center;
            margin-top: 28px;
        }

        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--glass-border-medium);
            transition: all var(--transition-base);
            min-height: 44px;
        }

        .btn-more:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.15);
        }

        /* ===== Topic Entry ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--glass-border-light);
            background: var(--glass-bg-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            min-height: 180px;
            display: flex;
            align-items: flex-end;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--glass-highlight);
            z-index: 2;
        }

        .topic-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
            transition: all var(--transition-base);
        }

        .topic-card .topic-overlay {
            position: relative;
            z-index: 1;
            padding: 20px 22px;
            width: 100%;
            background: linear-gradient(180deg, transparent 0%, rgba(3, 11, 22, 0.75) 55%, rgba(3, 11, 22, 0.92) 100%);
        }

        .topic-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .topic-card:hover img {
            opacity: 0.6;
            transform: scale(1.03);
        }

        .topic-card .topic-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: 0.4px;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* ===== FAQ ===== */
        .faq-list {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 0;
            text-align: left;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            min-height: 44px;
        }

        .faq-question:hover {
            color: var(--cyan-neon);
        }

        .faq-question .faq-num {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 12px;
            min-width: 20px;
        }

        .faq-question .faq-arrow {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition-base);
            position: relative;
        }

        .faq-question .faq-arrow::before,
        .faq-question .faq-arrow::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 10px;
            height: 2px;
            background: var(--text-muted);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .faq-question .faq-arrow::before {
            transform: translate(-50%, -50%) rotate(90deg);
        }
        .faq-question .faq-arrow::after {
            transform: translate(-50%, -50%);
        }

        .faq-item.open .faq-question {
            color: var(--cyan-neon);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(90deg);
        }

        .faq-item.open .faq-arrow::before {
            opacity: 0;
        }
        .faq-item.open .faq-arrow::after {
            background: var(--cyan-neon);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 0 0 32px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 0 20px 32px;
        }

        /* ===== Related News ===== */
        .related-news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .related-news-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-md);
            padding: 18px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .related-news-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-2px);
        }

        .related-news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .related-news-card .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 6px;
        }

        .related-news-card .news-link {
            font-size: 13px;
            color: var(--cyan-neon);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .related-news-card .news-link:hover {
            color: var(--cyan-bright);
        }

        /* ===== CTA Form ===== */
        .cta-section {
            background: linear-gradient(180deg, transparent 0%, rgba(0, 194, 255, 0.05) 100%);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-xl);
            padding: 40px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-grid::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--glass-highlight);
        }

        .cta-left h3 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.4px;
        }

        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .cta-left .cta-points {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .cta-left .cta-points li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .cta-left .cta-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            margin-top: 8px;
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.6);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-base);
            outline: none;
            min-height: 44px;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }

        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237D8FA3' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 40px;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            min-height: 48px;
            letter-spacing: 0.3px;
        }

        .btn-submit:hover {
            box-shadow: 0 0 28px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-submit:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.3);
        }

        .btn-submit:focus {
            outline: 2px solid rgba(0, 194, 255, 0.5);
            outline-offset: 2px;
        }

        .form-note {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-top: 10px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 10px rgba(0, 194, 255, 0.7);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .footer-col ul li a:hover {
            color: var(--cyan-neon);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

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

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

        .footer-links span {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 20px;
            }
            .nav-menu a {
                font-size: 13px;
            }
            .data-summary-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .guides-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .related-news-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .compact-header {
                padding-top: calc(var(--nav-height) + 24px);
            }
            .compact-header h1 {
                font-size: 26px;
            }
            .data-summary-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-summary-card {
                padding: 18px;
            }
            .data-summary-card .data-number {
                font-size: 24px;
            }
            .guide-card .card-image {
                height: 170px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .topic-card {
                min-height: 140px;
            }
            .related-news-list {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .cta-grid {
                padding: 22px;
                border-radius: var(--radius-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .data-summary-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-summary-card {
                padding: 14px;
            }
            .data-summary-card .data-number {
                font-size: 20px;
            }
            .data-summary-card .data-label {
                font-size: 12px;
            }
            .guide-card .card-body {
                padding: 14px;
            }
            .guide-card .card-title {
                font-size: 16px;
            }
            .guide-card .card-image {
                height: 150px;
            }
            .filter-btn {
                padding: 6px 14px;
                font-size: 12px;
                min-height: 32px;
            }
            .filter-bar {
                gap: 6px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 0;
            }
            .faq-answer {
                font-size: 14px;
                padding-left: 24px;
            }
            .faq-item.open .faq-answer {
                padding-left: 24px;
            }
            .btn-submit {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 80px;
            --section-gap-mobile: 56px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        *,
        *::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);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid rgba(0, 194, 255, 0.5);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
            line-height: 1.2;
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 44px;
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
        }

        .nav-hamburger {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.04);
            flex-shrink: 0;
            transition: border-color var(--transition-fast);
        }

        .nav-hamburger:hover {
            border-color: var(--cyan-bright);
        }

        .nav-hamburger .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            position: relative;
            transition: all var(--transition-base);
        }

        .nav-hamburger .bar::before,
        .nav-hamburger .bar::after {
            content: '';
            position: absolute;
            left: 0;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-hamburger .bar::before {
            top: -6px;
        }

        .nav-hamburger .bar::after {
            top: 6px;
        }

        .nav-hamburger.open .bar {
            background: transparent;
        }

        .nav-hamburger.open .bar::before {
            top: 0;
            transform: rotate(45deg);
            background: var(--cyan-neon);
        }

        .nav-hamburger.open .bar::after {
            top: 0;
            transform: rotate(-45deg);
            background: var(--cyan-neon);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(3, 11, 22, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            overflow-y: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .mobile-drawer .drawer-menu a {
            display: block;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

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

        .mobile-drawer .drawer-cta {
            margin-top: 24px;
        }

        .mobile-drawer .drawer-cta .btn-nav {
            width: 100%;
            justify-content: center;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

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

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.25);
            user-select: none;
        }

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

        /* ===== Category Header (compact) ===== */
        .category-header {
            padding: calc(var(--nav-height) + 48px) 0 40px;
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 194, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

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

        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .category-header .intro {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 760px;
            margin-bottom: 20px;
        }

        .filter-toolbar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 12px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .filter-toolbar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-right: 8px;
            white-space: nowrap;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: all var(--transition-fast);
            min-height: 36px;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: rgba(0, 194, 255, 0.35);
            color: var(--cyan-neon);
            background: rgba(0, 194, 255, 0.06);
        }

        .filter-btn.active {
            background: rgba(0, 194, 255, 0.12);
            border-color: rgba(0, 194, 255, 0.45);
            color: var(--cyan-neon);
            box-shadow: 0 0 14px rgba(0, 194, 255, 0.20);
        }

        /* ===== Section General ===== */
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 600;
            line-height: 1.3;
            letter-spacing: 0.3px;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
        }

        /* ===== Metric Cards ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
        }

        .metric-card:hover {
            border-color: rgba(0, 194, 255, 0.30);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-family: var(--font-condensed);
            font-size: 28px;
            font-weight: 700;
            color: var(--cyan-neon);
            letter-spacing: 0.5px;
            line-height: 1.2;
            margin-bottom: 4px;
            text-shadow: 0 0 20px rgba(0, 194, 255, 0.30);
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .metric-card .metric-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .metric-card .trend-bar {
            flex: 1;
            height: 4px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 4px;
            overflow: hidden;
            position: relative;
        }

        .metric-card .trend-bar span {
            display: block;
            height: 100%;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 4px;
            box-shadow: 0 0 6px rgba(0, 194, 255, 0.4);
        }

        /* ===== Team Cards Grid ===== */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .team-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .team-card:hover {
            border-color: rgba(0, 194, 255, 0.30);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .team-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

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

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

        .team-card .cover-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(3, 11, 22, 0.1) 40%, rgba(3, 11, 22, 0.65) 100%);
            pointer-events: none;
        }

        .team-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-neon);
            background: rgba(3, 11, 22, 0.75);
            border: 1px solid rgba(0, 194, 255, 0.30);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            letter-spacing: 0.3px;
        }

        .team-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 8px;
        }

        .team-card .card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .team-card .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .team-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 36px;
            align-items: center;
        }

        .card-link .arrow {
            transition: transform var(--transition-fast);
            display: inline-block;
        }

        .card-link:hover {
            color: var(--cyan-bright);
        }

        .card-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== List More ===== */
        .list-more {
            display: flex;
            justify-content: center;
            margin-top: 28px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-bright);
        }

        .btn-secondary .arrow {
            transition: transform var(--transition-fast);
            display: inline-block;
        }

        .btn-secondary:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== Topic Section ===== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .topic-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            min-height: 150px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .topic-card:hover {
            border-color: rgba(0, 194, 255, 0.30);
            box-shadow: var(--shadow-card-hover);
        }

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

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .topic-card .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            margin-top: 12px;
            transition: all var(--transition-fast);
        }

        .topic-card .topic-link:hover {
            color: var(--cyan-bright);
        }

        /* ===== News List ===== */
        .news-list-compact {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item-compact {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-fast);
        }

        .news-item-compact:last-child {
            border-bottom: none;
        }

        .news-item-compact:hover .news-title-compact {
            color: var(--cyan-neon);
        }

        .news-item-compact .news-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            min-width: 90px;
            text-align: right;
        }

        .news-item-compact .news-content {
            flex: 1;
        }

        .news-item-compact .news-title-compact {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            transition: color var(--transition-fast);
            margin-bottom: 4px;
        }

        .news-item-compact .news-desc-compact {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -150px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-text h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            min-height: 48px;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 14px rgba(0, 194, 255, 0.30);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

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

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .footer-col ul a:hover {
            color: var(--cyan-neon);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

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

        .footer-links span {
            color: rgba(255, 255, 255, 0.2);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .nav-menu {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .category-header h1 {
                font-size: 28px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

        @media (max-width: 639px) {
            :root {
                --section-gap: 48px;
                --nav-height: 60px;
            }

            .container {
                padding: 0 16px;
            }

            .category-header {
                padding-top: calc(var(--nav-height) + 32px);
                padding-bottom: 28px;
            }

            .category-header h1 {
                font-size: 24px;
            }

            .category-header .intro {
                font-size: 14px;
            }

            .filter-toolbar {
                gap: 6px;
                padding: 10px 0;
            }

            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
                min-height: 32px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-card .metric-value {
                font-size: 22px;
            }

            .team-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .news-item-compact {
                flex-direction: column;
                gap: 4px;
                padding: 14px 0;
            }

            .news-item-compact .news-date {
                text-align: left;
                min-width: auto;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-text h2 {
                font-size: 20px;
            }

            .btn-primary {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 14px;
            }

            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .card-link {
                min-height: 36px;
            }
        }

        @media (min-width: 640px) and (max-width: 1023px) {
            .team-grid {
                gap: 16px;
            }

            .team-card .card-body {
                padding: 14px 16px 16px;
            }

            .team-card .card-title {
                font-size: 17px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 64px;
            --section-gap-mobile: 48px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            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);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--cyan-neon);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: transparent;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            border-color: var(--cyan-bright);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 0;
        }

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

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

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

        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.6;
        }

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

        /* ===== Page Header / Compact Hero ===== */
        .page-header {
            padding: 24px 0 32px;
            position: relative;
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 194, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

        .page-header-inner {
            position: relative;
            z-index: 1;
        }

        .page-header h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .page-header .subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }

        .page-header .header-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .page-header .header-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: 999px;
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
        }

        .page-header .header-meta .meta-item .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.6);
        }

        /* ===== Filter Toolbar ===== */
        .filter-toolbar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid var(--glass-border-light);
            margin-bottom: 24px;
        }

        .filter-toolbar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }

        .filter-toolbar .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-toolbar .filter-chip:hover {
            border-color: var(--cyan-bright);
            color: var(--cyan-neon);
        }

        .filter-toolbar .filter-chip.active {
            background: rgba(0, 194, 255, 0.1);
            border-color: var(--cyan-bright);
            color: var(--cyan-neon);
        }

        /* ===== Data Summary Cards ===== */
        .data-summary {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: var(--section-gap);
        }

        .summary-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .summary-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
        }

        .summary-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .summary-card .summary-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(0, 194, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 18px;
            color: var(--cyan-bright);
        }

        .summary-card .summary-value {
            font-family: var(--font-condensed);
            font-size: 28px;
            font-weight: 700;
            color: var(--cyan-bright);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .summary-card .summary-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-bottom: 12px;
        }

        .summary-card .summary-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .summary-card .summary-trend .trend-up {
            color: var(--cyan-neon);
            font-weight: 600;
        }

        .summary-card .summary-chart {
            height: 32px;
            margin-top: 12px;
            display: flex;
            align-items: flex-end;
            gap: 4px;
        }

        .summary-card .summary-chart .bar {
            flex: 1;
            border-radius: 2px 2px 0 0;
            background: linear-gradient(180deg, var(--cyan-bright), rgba(0, 194, 255, 0.2));
            min-height: 4px;
            transition: height var(--transition-base);
        }

        .summary-card:nth-child(1) .summary-chart .bar { height: 40%; }
        .summary-card:nth-child(1) .summary-chart .bar:nth-child(2) { height: 55%; }
        .summary-card:nth-child(1) .summary-chart .bar:nth-child(3) { height: 50%; }
        .summary-card:nth-child(1) .summary-chart .bar:nth-child(4) { height: 65%; }
        .summary-card:nth-child(1) .summary-chart .bar:nth-child(5) { height: 70%; }
        .summary-card:nth-child(1) .summary-chart .bar:nth-child(6) { height: 82%; }

        .summary-card:nth-child(2) .summary-chart .bar { height: 30%; }
        .summary-card:nth-child(2) .summary-chart .bar:nth-child(2) { height: 45%; }
        .summary-card:nth-child(2) .summary-chart .bar:nth-child(3) { height: 38%; }
        .summary-card:nth-child(2) .summary-chart .bar:nth-child(4) { height: 58%; }
        .summary-card:nth-child(2) .summary-chart .bar:nth-child(5) { height: 52%; }
        .summary-card:nth-child(2) .summary-chart .bar:nth-child(6) { height: 75%; }

        .summary-card:nth-child(3) .summary-chart .bar { height: 50%; }
        .summary-card:nth-child(3) .summary-chart .bar:nth-child(2) { height: 42%; }
        .summary-card:nth-child(3) .summary-chart .bar:nth-child(3) { height: 62%; }
        .summary-card:nth-child(3) .summary-chart .bar:nth-child(4) { height: 56%; }
        .summary-card:nth-child(3) .summary-chart .bar:nth-child(5) { height: 72%; }
        .summary-card:nth-child(3) .summary-chart .bar:nth-child(6) { height: 80%; }

        .summary-card:nth-child(4) .summary-chart .bar { height: 35%; }
        .summary-card:nth-child(4) .summary-chart .bar:nth-child(2) { height: 48%; }
        .summary-card:nth-child(4) .summary-chart .bar:nth-child(3) { height: 44%; }
        .summary-card:nth-child(4) .summary-chart .bar:nth-child(4) { height: 60%; }
        .summary-card:nth-child(4) .summary-chart .bar:nth-child(5) { height: 68%; }
        .summary-card:nth-child(4) .summary-chart .bar:nth-child(6) { height: 78%; }

        /* ===== News List ===== */
        .news-list-section {
            margin-bottom: var(--section-gap);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .section-header .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            color: var(--text-primary);
        }

        .section-header .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .section-header .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan-neon);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .section-header .section-link:hover {
            color: var(--cyan-bright);
            gap: 10px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 16px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .news-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
        }

        .news-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .news-card .news-image {
            width: 200px;
            height: 130px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-tertiary);
            position: relative;
        }

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

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

        .news-card .news-content {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

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

        .news-card .news-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 194, 255, 0.2);
        }

        .news-card .news-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .news-card:hover .news-title {
            color: var(--cyan-neon);
        }

        .news-card .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-card .news-action {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .news-card .news-action:hover {
            color: var(--cyan-bright);
            gap: 12px;
        }

        .news-card .news-action .arrow {
            transition: transform var(--transition-fast);
        }

        .news-card .news-action:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== Topic Entrance ===== */
        .topic-section {
            margin-bottom: var(--section-gap);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--cyan-bright), var(--purple-accent));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .topic-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }

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

        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .topic-card:nth-child(1) .topic-icon {
            background: rgba(0, 194, 255, 0.12);
            color: var(--cyan-bright);
        }

        .topic-card:nth-child(2) .topic-icon {
            background: rgba(139, 92, 246, 0.12);
            color: var(--purple-accent);
        }

        .topic-card:nth-child(3) .topic-icon {
            background: rgba(244, 63, 94, 0.12);
            color: var(--rose-accent);
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .topic-card .topic-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .topic-card .topic-link:hover {
            color: var(--cyan-bright);
            gap: 10px;
        }

        /* ===== Deep Report ===== */
        .deep-report {
            margin-bottom: var(--section-gap);
        }

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

        .deep-card {
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .deep-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }

        .deep-card .deep-image {
            height: 180px;
            overflow: hidden;
            background: var(--bg-tertiary);
        }

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

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

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

        .deep-card .deep-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }

        .deep-card .deep-tag {
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 194, 255, 0.2);
        }

        .deep-card .deep-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        .deep-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .deep-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            margin-bottom: var(--section-gap);
            padding: 40px;
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            border-radius: var(--radius-xxl);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 194, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .cta-form input {
            padding: 12px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            font-size: 14px;
            min-width: 260px;
            transition: all var(--transition-fast);
            outline: none;
        }

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

        .cta-form input:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            border: none;
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }

        .btn-primary:focus {
            outline: 2px solid rgba(0, 194, 255, 0.5);
            outline-offset: 2px;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 48px 0 28px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
        }

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

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

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

        .footer-col ul li a:hover {
            color: var(--cyan-neon);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

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

        /* ===== Mobile Nav Drawer ===== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(3, 11, 22, 0.95);
            z-index: 999;
            padding: 100px 24px 40px;
            flex-direction: column;
            gap: 0;
            overflow-y: auto;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .nav-overlay.open {
            display: flex;
        }

        .nav-overlay a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .nav-overlay a:hover {
            color: var(--cyan-neon);
        }

        .nav-overlay a.active {
            color: var(--cyan-neon);
        }

        .nav-overlay .btn-nav {
            margin-top: 20px;
            justify-content: center;
            width: 100%;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .data-summary {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .deep-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-height: 60px;
            }

            .nav-menu {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .page-header h1 {
                font-size: 28px;
            }

            .data-summary {
                grid-template-columns: 1fr;
            }

            .news-card {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .news-card .news-image {
                width: 100%;
                height: 180px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-form {
                width: 100%;
            }

            .cta-form input {
                min-width: 0;
                flex: 1;
            }

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

        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 24px;
            }

            .filter-toolbar .filter-chip {
                padding: 6px 14px;
                font-size: 12px;
            }

            .cta-section {
                padding: 24px;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form input {
                width: 100%;
            }

            .btn-primary {
                width: 100%;
                justify-content: center;
            }

            .summary-card .summary-value {
                font-size: 24px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #030B16;
            --bg-secondary: #050D1A;
            --bg-tertiary: #081120;
            --blue-core: #1677FF;
            --blue-light: #1B7CFF;
            --cyan-neon: #29D6E6;
            --cyan-bright: #00C2FF;
            --purple-accent: #8B5CF6;
            --rose-accent: #F43F5E;
            --text-primary: #F1F5F9;
            --text-secondary: #B8C4D3;
            --text-muted: #7D8FA3;
            --glass-bg-light: rgba(255, 255, 255, 0.04);
            --glass-bg-medium: rgba(255, 255, 255, 0.06);
            --glass-bg-heavy: rgba(255, 255, 255, 0.08);
            --glass-border-light: rgba(255, 255, 255, 0.10);
            --glass-border-medium: rgba(255, 255, 255, 0.14);
            --glass-highlight: rgba(255, 255, 255, 0.20);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-xxl: 24px;
            --container-max: 1200px;
            --nav-height: 72px;
            --section-gap: 56px;
            --section-gap-mobile: 48px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-condensed: 'Inter', 'Roboto Condensed', 'Oswald', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            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);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid rgba(0, 194, 255, 0.5);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(3, 11, 22, 0.75);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(3, 11, 22, 0.92);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .nav-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.8);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 8px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-menu a:hover {
            color: var(--cyan-neon);
        }

        .nav-menu a.active {
            color: var(--cyan-neon);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-core), var(--cyan-bright));
            border-radius: 2px 2px 0 0;
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.4);
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 44px;
        }

        .btn-nav:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            color: var(--cyan-neon);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.10);
            background: rgba(255, 255, 255, 0.04);
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all var(--transition-base);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(3, 11, 22, 0.98);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            overflow-y: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }

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

        .mobile-drawer a {
            display: block;
            padding: 16px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: color var(--transition-fast);
        }

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

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 28px);
            padding-bottom: 16px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--cyan-neon);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--cyan-neon);
            font-weight: 500;
        }

        /* ===== Category Header ===== */
        .category-header {
            padding: 32px 0 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .category-header .h1-wrap {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin: 0;
        }

        .category-header .h1-badge {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.8px;
            background: rgba(0, 194, 255, 0.12);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 194, 255, 0.25);
            text-transform: uppercase;
            flex-shrink: 0;
        }

        .category-header .h1-tagline {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-top: 14px;
            line-height: 1.8;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 22px;
            flex-wrap: wrap;
        }

        .filter-bar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: all var(--transition-fast);
            min-height: 36px;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: rgba(0, 194, 255, 0.4);
            color: var(--cyan-neon);
            background: rgba(0, 194, 255, 0.06);
        }

        .filter-btn.active-filter {
            border-color: var(--cyan-bright);
            color: var(--cyan-neon);
            background: rgba(0, 194, 255, 0.10);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.15);
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            margin-bottom: 28px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1.2px;
            color: var(--cyan-neon);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

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

        .stat-card {
            padding: 24px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        }

        .stat-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-card .stat-num {
            font-family: var(--font-condensed);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--cyan-neon);
            text-shadow: 0 0 16px rgba(0, 194, 255, 0.3);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        .stat-card .stat-trend {
            position: absolute;
            top: 20px;
            right: 20px;
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-neon);
        }

        .stat-card .stat-trend .arrow-up {
            width: 0;
            height: 0;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-bottom: 6px solid var(--cyan-neon);
        }

        /* ===== Resource Grid ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .resource-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
        }

        .resource-card:hover {
            border-color: rgba(0, 194, 255, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .resource-card .card-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-tertiary);
            flex-shrink: 0;
        }

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

        .resource-card:hover .card-cover img {
            transform: scale(1.03);
        }

        .resource-card .card-cover .cover-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.6px;
            background: rgba(3, 11, 22, 0.75);
            color: var(--cyan-neon);
            border: 1px solid rgba(0, 194, 255, 0.3);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .resource-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .resource-card .card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
            letter-spacing: 0.2px;
        }

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

        .resource-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
        }

        .resource-card .meta-info {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .resource-card .meta-info span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .resource-card .meta-info .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--cyan-neon);
            flex-shrink: 0;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            border: none;
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-height: 36px;
        }

        .btn-download:hover {
            box-shadow: 0 0 24px rgba(0, 194, 255, 0.55);
            transform: translateY(-1px);
        }
        .btn-download:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.25);
        }

        /* ===== Guide Section ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guide-step {
            padding: 24px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .guide-step:hover {
            border-color: rgba(0, 194, 255, 0.3);
        }

        .guide-step .step-num {
            font-family: var(--font-condensed);
            font-size: 28px;
            font-weight: 700;
            color: rgba(0, 194, 255, 0.35);
            line-height: 1;
            margin-bottom: 12px;
            display: block;
        }

        .guide-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .guide-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== News List ===== */
        .news-list-compact {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-mini-card {
            padding: 20px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-mini-card:hover {
            border-color: rgba(0, 194, 255, 0.3);
            transform: translateY(-2px);
        }

        .news-mini-card .news-date {
            font-size: 12px;
            color: var(--cyan-neon);
            font-weight: 500;
            letter-spacing: 0.6px;
            margin-bottom: 8px;
        }

        .news-mini-card h4 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .news-mini-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .news-mini-card .news-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-neon);
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }
        .news-mini-card .news-link:hover {
            gap: 8px;
        }
        .news-mini-card .news-link .arrow {
            display: inline-block;
            transition: transform var(--transition-fast);
        }
        .news-mini-card .news-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== FAQ ===== */
        .faq-list {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: color var(--transition-fast);
            min-height: 44px;
        }

        .faq-question:hover {
            color: var(--cyan-neon);
        }

        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            position: relative;
            transition: transform var(--transition-base);
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            background: var(--cyan-neon);
            border-radius: 1px;
            transition: all var(--transition-base);
        }

        .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
            transform: translate(-50%, -50%);
        }
        .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
            transform: translate(-50%, -50%);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 220px;
            padding: 0 0 20px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 32px 0 48px;
        }

        .cta-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            padding: 36px;
            border-radius: var(--radius-xxl);
            background: var(--glass-bg-light);
            border: 1px solid var(--glass-border-medium);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 194, 255, 0.12), transparent 70%);
            pointer-events: none;
        }

        .cta-wrapper::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.10), transparent 70%);
            pointer-events: none;
        }

        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        .cta-left .cta-points {
            list-style: none;
            position: relative;
            z-index: 1;
        }
        .cta-left .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .cta-left .cta-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
            flex-shrink: 0;
        }

        .cta-form {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 12px 16px;
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition-fast);
            min-height: 44px;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--cyan-bright);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237D8FA3' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--blue-core), var(--cyan-bright));
            border: none;
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.45);
            transition: all var(--transition-base);
            min-height: 48px;
            margin-top: 4px;
        }

        .btn-glow:hover {
            box-shadow: 0 0 32px rgba(0, 194, 255, 0.65);
            transform: translateY(-2px);
        }
        .btn-glow:active {
            transform: translateY(0);
            box-shadow: 0 0 14px rgba(0, 194, 255, 0.3);
        }

        .form-notice {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Load More ===== */
        .load-more-wrap {
            text-align: center;
            margin-top: 28px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan-neon);
            background: transparent;
            border: 1px solid rgba(0, 194, 255, 0.25);
            transition: all var(--transition-fast);
            min-height: 44px;
        }

        .btn-secondary:hover {
            border-color: var(--cyan-bright);
            background: rgba(0, 194, 255, 0.08);
            box-shadow: 0 0 14px rgba(0, 194, 255, 0.15);
        }

        /* ===== Toast ===== */
        .toast-message {
            position: fixed;
            bottom: 24px;
            right: 24px;
            padding: 16px 24px;
            border-radius: var(--radius-md);
            background: rgba(3, 11, 22, 0.95);
            border: 1px solid rgba(0, 194, 255, 0.3);
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 500;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
            z-index: 2000;
            display: none;
            align-items: center;
            gap: 8px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .toast-message.show {
            display: flex;
            animation: toast-in 0.3s ease forwards;
        }

        @keyframes toast-in {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding: 48px 0 24px;
            margin-top: 16px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0, 194, 255, 0.6);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--cyan-neon);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--cyan-neon);
        }
        .footer-links span {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list-compact {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-wrapper {
                grid-template-columns: 1fr;
                padding: 28px;
                gap: 28px;
            }
            .nav-menu {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap: 48px;
            }

            .nav-menu {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }

            .category-header h1 {
                font-size: 28px;
            }
            .category-header .h1-tagline {
                font-size: 15px;
            }

            .resource-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .news-list-compact {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: span 2;
            }
            .cta-wrapper {
                padding: 20px;
            }
            .stats-grid {
                gap: 14px;
            }
            .stat-card {
                padding: 18px;
            }
            .stat-card .stat-num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .category-header .h1-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
                min-height: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .toast-message {
                left: 16px;
                right: 16px;
                bottom: 16px;
                justify-content: center;
                text-align: center;
            }
        }