/* roulang page: index */
:root {
            --bg-dark: #0B1220;
            --bg-dark2: #0D1B2A;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-glass-strong: rgba(255, 255, 255, 0.20);
            --text-primary: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.55);
            --text-faint: rgba(255, 255, 255, 0.38);
            --cyan: #22D3EE;
            --cyan-dark: #0891B2;
            --green: #34D399;
            --green-dark: #059669;
            --orange: #F97316;
            --orange-dark: #EA580C;
            --blue-deep: #1E3A8A;
            --blue-mid: #2563EB;
            --gold: #D4A017;
            --red: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
            --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --space-section: 72px;
            --space-section-mobile: 48px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--green);
            text-decoration: none;
        }

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

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

        ::selection {
            background: rgba(34, 211, 238, 0.3);
            color: #fff;
        }

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

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

        @media (max-width: 640px) {
            .container-fluid {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-cyan);
        }

        .brand-logo .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo .logo-text .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.12);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 13px;
            padding: 10px 20px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            background: linear-gradient(135deg, #3ae0f5 0%, #4ade80 100%);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-glass);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 20px;
            width: 42px;
            height: 42px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-glass-strong);
        }

        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(11, 18, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-glass);
                padding: 16px 24px 20px;
                gap: 4px;
                max-height: calc(100vh - 60px);
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta-wrap {
                display: none;
            }
            .brand-logo .logo-text {
                font-size: 17px;
            }
            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 60px 0 60px;
            overflow: hidden;
            background: url('/assets/images/068413b61852df3f.webp') no-repeat center center;
            background-size: cover;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.88) 0%, rgba(13, 27, 42, 0.75) 40%, rgba(11, 18, 32, 0.9) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(34, 211, 238, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(34, 211, 238, 0.05) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 1;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }

        .hero-copy {
            max-width: 580px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(34, 211, 238, 0.15);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--cyan);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-tag .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--green);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
            box-shadow: 0 0 10px rgba(52, 211, 153, 0.7);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .hero-copy h1 {
            font-size: clamp(28px, 4.5vw, 42px);
            font-weight: 900;
            line-height: 1.25;
            margin: 0 0 20px;
            color: #fff;
            letter-spacing: 0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .hero-copy h1 .highlight {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #3ae0f5 0%, #4ade80 100%);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--cyan);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: 12px;
            border: 1px solid var(--cyan);
            cursor: pointer;
            transition: var(--transition-base);
        }

        .btn-secondary:hover {
            background: rgba(34, 211, 238, 0.12);
            border-color: var(--green);
            color: var(--green);
            transform: translateY(-2px);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-item .stat-number {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--cyan);
            letter-spacing: 0.5px;
        }

        .hero-stat-item .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-portal {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .portal-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .portal-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .portal-card .portal-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .portal-card .portal-icon.cyan {
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
        }
        .portal-card .portal-icon.green {
            background: rgba(52, 211, 153, 0.15);
            color: var(--green);
        }
        .portal-card .portal-icon.orange {
            background: rgba(249, 115, 22, 0.15);
            color: var(--orange);
        }
        .portal-card .portal-icon.gold {
            background: rgba(212, 160, 23, 0.15);
            color: var(--gold);
        }

        .portal-card .portal-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }

        .portal-card .portal-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-copy {
                max-width: 100%;
            }
            .hero-section {
                min-height: auto;
                padding: 48px 0 48px;
            }
        }

        @media (max-width: 768px) {
            .hero-portal {
                grid-template-columns: 1fr;
            }
            .hero-copy h1 {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stat-item .stat-number {
                font-size: 18px;
            }
        }

        /* ============ SECTION BASICS ============ */
        .section-block {
            padding: var(--space-section) 0;
            position: relative;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: var(--space-section-mobile) 0;
            }
        }

        .section-header {
            margin-bottom: 36px;
            max-width: 680px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--cyan);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            line-height: 1.35;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
        }

        .glass-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        /* ============ METRIC DASHBOARD ============ */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .metric-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--cyan), var(--green));
            opacity: 0;
            transition: var(--transition-base);
        }

        .metric-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-2px);
        }
        .metric-card:hover::before {
            opacity: 1;
        }

        .metric-card .metric-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            margin-bottom: 12px;
        }

        .metric-card .metric-icon.cyan {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
        }
        .metric-card .metric-icon.green {
            background: rgba(52, 211, 153, 0.12);
            color: var(--green);
        }
        .metric-card .metric-icon.orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--orange);
        }
        .metric-card .metric-icon.gold {
            background: rgba(212, 160, 23, 0.12);
            color: var(--gold);
        }

        .metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .metric-card .metric-value.cyan-text {
            color: var(--cyan);
        }
        .metric-card .metric-value.green-text {
            color: var(--green);
        }
        .metric-card .metric-value.orange-text {
            color: var(--orange);
        }
        .metric-card .metric-value.gold-text {
            color: var(--gold);
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 6px;
        }

        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 8px;
            padding: 3px 10px;
            border-radius: 12px;
        }

        .metric-card .metric-trend.up {
            color: var(--green);
            background: rgba(52, 211, 153, 0.1);
        }
        .metric-card .metric-trend.down {
            color: var(--orange);
            background: rgba(249, 115, 22, 0.1);
        }

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

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 16px;
            }
            .metric-card .metric-value {
                font-size: 22px;
            }
        }

        /* ============ SERVICE MATRIX ============ */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .service-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .service-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

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

        .service-card .service-link:hover {
            color: var(--green);
            gap: 10px;
        }

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

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

        /* ============ COMPARISON ============ */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .comparison-panel {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: var(--transition-base);
        }

        .comparison-panel:hover {
            border-color: var(--border-glass-strong);
            box-shadow: var(--shadow-lg);
        }

        .comparison-panel.highlight {
            border-color: rgba(52, 211, 153, 0.4);
            background: rgba(52, 211, 153, 0.06);
        }

        .comparison-panel .panel-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 16px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .comparison-panel .panel-badge.green-badge {
            background: rgba(52, 211, 153, 0.15);
            color: var(--green);
        }
        .comparison-panel .panel-badge.orange-badge {
            background: rgba(249, 115, 22, 0.15);
            color: var(--orange);
        }
        .comparison-panel .panel-badge.cyan-badge {
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
        }

        .comparison-panel h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

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

        .comparison-panel .match-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .comparison-panel .match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 8px;
            padding: 12px 16px;
            transition: var(--transition-base);
        }

        .comparison-panel .match-item:hover {
            background: rgba(255, 255, 255, 0.07);
        }

        .comparison-panel .match-teams {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-panel .match-score {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--cyan);
        }

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

        /* ============ MILESTONES ============ */
        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--cyan), var(--green), transparent);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--bg-dark);
            border: 3px solid var(--cyan);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.5);
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item .timeline-date {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--green);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .timeline-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin: 6px 0 4px;
        }

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

        /* ============ NEWS LIST ============ */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .news-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .news-card .news-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            display: block;
        }

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

        .news-card .news-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.5px;
            align-self: flex-start;
        }

        .news-card .news-tag.tag-cyan {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
        }
        .news-card .news-tag.tag-green {
            background: rgba(52, 211, 153, 0.12);
            color: var(--green);
        }
        .news-card .news-tag.tag-orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--orange);
        }

        .news-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0;
            line-height: 1.5;
        }

        .news-card .news-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

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

        .news-card .news-meta .hot-badge {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--orange);
        }

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

        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-card .news-img {
                height: 140px;
            }
        }

        /* ============ PLATFORM SECURITY ============ */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .security-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: var(--transition-base);
        }

        .security-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(52, 211, 153, 0.3);
            transform: translateY(-2px);
        }

        .security-item .sec-icon {
            font-size: 26px;
            color: var(--green);
            margin-bottom: 10px;
        }

        .security-item h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .security-item p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

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

        @media (max-width: 520px) {
            .security-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ QUICK ANSWERS ============ */
        .quick-answers-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .quick-answer-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            padding: 18px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: var(--transition-base);
        }

        .quick-answer-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.3);
        }

        .quick-answer-card .qa-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
        }

        .quick-answer-card .qa-content h5 {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 4px;
        }

        .quick-answer-card .qa-content p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .quick-answers-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .quick-answers-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-glass-strong);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            text-align: left;
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(34, 211, 238, 0.1);
            color: var(--cyan);
            font-size: 12px;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            background: rgba(52, 211, 153, 0.15);
            color: var(--green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ============ CTA / FORM ============ */
        .cta-section {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.35) 0%, rgba(14, 59, 46, 0.4) 100%);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(34, 211, 238, 0.25);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-copy h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .cta-copy p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-form .form-row {
            display: flex;
            gap: 12px;
        }
        .cta-form .form-row .form-group {
            flex: 1;
        }

        .cta-form input[type="text"],
        .cta-form input[type="tel"],
        .cta-form input[type="email"] {
            width: 100%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 8px;
            padding: 12px 16px;
            color: #fff;
            font-size: 14px;
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

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

        .cta-form input:focus {
            outline: none;
            border-color: var(--cyan);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .cta-form .form-agree {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .cta-form .form-agree input[type="checkbox"] {
            width: 16px;
            height: 16px;
            accent-color: var(--cyan);
            flex-shrink: 0;
            cursor: pointer;
        }

        .btn-submit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

        .btn-submit:hover {
            background: linear-gradient(135deg, #3ae0f5 0%, #4ade80 100%);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
        }

        @media (max-width: 900px) {
            .cta-section {
                grid-template-columns: 1fr;
                padding: 28px 24px;
            }
            .cta-form .form-row {
                flex-direction: column;
            }
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro-section {
            background: url('/assets/images/a0466261524d78a4.webp') no-repeat center center;
            background-size: cover;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 48px 40px;
            border: 1px solid var(--border-glass);
        }

        .brand-intro-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92) 0%, rgba(13, 27, 42, 0.85) 100%);
        }

        .brand-intro-content {
            position: relative;
            z-index: 1;
            max-width: 720px;
        }

        .brand-intro-content h2 {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .brand-intro-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        /* ============ CALENDAR / HOT TOPICS ============ */
        .calendar-strip {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .calendar-strip::-webkit-scrollbar {
            height: 4px;
        }
        .calendar-strip::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .calendar-card {
            min-width: 180px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .calendar-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-2px);
        }

        .calendar-card .cal-date {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--cyan);
            letter-spacing: 1px;
        }

        .calendar-card .cal-league {
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            margin: 6px 0 4px;
        }

        .calendar-card .cal-detail {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ============ HOT PLAYS / GAME SCENES ============ */
        .plays-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .play-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            transition: var(--transition-base);
            min-height: 260px;
            display: flex;
            align-items: flex-end;
        }

        .play-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .play-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.2) 0%, rgba(11, 18, 32, 0.85) 70%, rgba(11, 18, 32, 0.95) 100%);
            z-index: 1;
        }

        .play-card:hover {
            border-color: rgba(34, 211, 238, 0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .play-card .play-body {
            position: relative;
            z-index: 2;
            padding: 22px;
            width: 100%;
        }

        .play-card .play-badge-wrap {
            display: flex;
            gap: 6px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .play-badge {
            font-size: 10px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.5px;
            background: rgba(34, 211, 238, 0.2);
            color: var(--cyan);
        }

        .play-badge.green-badge {
            background: rgba(52, 211, 153, 0.18);
            color: var(--green);
        }
        .play-badge.gold-badge {
            background: rgba(212, 160, 23, 0.18);
            color: var(--gold);
        }

        .play-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .play-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .plays-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .plays-grid {
                grid-template-columns: 1fr;
            }
            .play-card {
                min-height: 220px;
            }
        }

        /* ============ COMMUNITY RANKING ============ */
        .ranking-container {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 8px;
            padding: 12px 16px;
            transition: var(--transition-base);
        }

        .ranking-item:hover {
            background: rgba(255, 255, 255, 0.07);
        }

        .ranking-pos {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .ranking-pos.pos-1 {
            background: rgba(212, 160, 23, 0.2);
            color: var(--gold);
        }
        .ranking-pos.pos-2 {
            background: rgba(192, 192, 192, 0.15);
            color: #C0C0C0;
        }
        .ranking-pos.pos-3 {
            background: rgba(205, 127, 50, 0.2);
            color: #CD7F32;
        }
        .ranking-pos.pos-normal {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
        }

        .ranking-item .rank-name {
            flex: 1;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
        }

        .ranking-item .rank-score {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--cyan);
        }

        @media (max-width: 768px) {
            .ranking-container {
                grid-template-columns: 1fr;
                padding: 20px;
            }
        }

        /* ============ ECOSYSTEM / TAG CLOUD ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition-base);
            cursor: default;
        }

        .tag-pill:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.35);
            color: var(--cyan);
            transform: translateY(-1px);
        }

        .tag-pill .tag-count {
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            color: var(--text-faint);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(8, 13, 22, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 40px 0 24px;
            margin-top: var(--space-section);
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-icon-small {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 14px;
            font-weight: 900;
        }

        .footer-brand .footer-logo .logo-text-small {
            font-size: 17px;
            font-weight: 900;
            color: #fff;
        }

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

        .footer-col h5 {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-faint);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--cyan);
        }

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

        .footer-bottom a {
            color: var(--text-faint);
            text-decoration: none;
            transition: var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--cyan);
        }

        .footer-bottom .footer-meta-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ============ MISC ============ */
        .text-gradient-cyan-green {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .divider-fade {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.3), rgba(52, 211, 153, 0.3), transparent);
            border: none;
            margin: 0;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category1 */
:root {
            --bg-dark: #0B1220;
            --bg-dark2: #0D1B2A;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-glass-strong: rgba(255, 255, 255, 0.20);
            --text-primary: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.55);
            --text-faint: rgba(255, 255, 255, 0.38);
            --cyan: #22D3EE;
            --cyan-dark: #0891B2;
            --green: #34D399;
            --green-dark: #059669;
            --orange: #F97316;
            --orange-dark: #EA580C;
            --blue-deep: #1E3A8A;
            --blue-mid: #2563EB;
            --gold: #D4A017;
            --red: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
            --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --section-space: 64px;
            --section-space-mobile: 40px;
            --container-max: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--green);
            text-decoration: none;
        }

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

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

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

        @media (max-width: 640px) {
            .container-fluid {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-cyan);
        }

        .brand-logo .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo .logo-text .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.10);
            box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.25);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: 0.5px;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            border: none;
        }

        .btn-nav-cta:hover {
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }

        .nav-toggle {
            display: none;
            border: none;
            background: transparent;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-glass);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            background: rgba(11, 18, 32, 0.4);
        }

        .breadcrumb-bar .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .breadcrumb-bar .back-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--text-muted);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: var(--transition-base);
            margin-right: 8px;
        }

        .breadcrumb-bar .back-link:hover {
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.4);
            background: rgba(34, 211, 238, 0.06);
        }

        .breadcrumb-bar .breadcrumb-sep {
            color: var(--text-faint);
        }

        .breadcrumb-bar .breadcrumb-current {
            color: #fff;
            font-weight: 600;
        }

        /* ============ PAGE HEADER ============ */
        .page-header-section {
            padding: 40px 0 32px;
        }

        .page-header-section h1 {
            font-size: 32px;
            font-weight: 900;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .page-header-section .page-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ SUMMARY STRIP ============ */
        .summary-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: var(--section-space);
        }

        .summary-strip .summary-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-lg);
            transition: var(--transition-base);
        }

        .summary-strip .summary-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-3px);
        }

        .summary-strip .summary-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .summary-strip .summary-value {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1.2;
        }

        .summary-strip .summary-value.green {
            color: var(--green);
        }

        .summary-strip .summary-value.orange {
            color: var(--orange);
        }

        .summary-strip .summary-value.gold {
            color: var(--gold);
        }

        .summary-strip .summary-note {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 6px;
        }

        /* ============ FILTER BAR ============ */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .filter-bar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-right: 4px;
        }

        .filter-bar .filter-chip {
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            transition: var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-bar .filter-chip:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .filter-bar .filter-chip.active {
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            border-color: transparent;
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.3);
        }

        /* ============ PREDICTION GRID ============ */
        .prediction-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: var(--section-space);
        }

        .prediction-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .prediction-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
        }

        .prediction-card .card-img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.5) 0%, rgba(14, 59, 46, 0.6) 100%);
        }

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

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

        .prediction-card .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.1) 0%, rgba(11, 18, 32, 0.75) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px 20px;
        }

        .prediction-card .card-cat-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

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

        .prediction-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .prediction-card .card-title a {
            color: #fff;
        }

        .prediction-card .card-title a:hover {
            color: var(--cyan);
        }

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

        .prediction-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .prediction-card .meta-item i {
            font-size: 13px;
            color: var(--text-faint);
        }

        .prediction-card .hit-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--green);
            background: rgba(52, 211, 153, 0.08);
            border: 1px solid rgba(52, 211, 153, 0.25);
        }

        .prediction-card .hit-badge.medium {
            color: var(--gold);
            background: rgba(212, 160, 23, 0.08);
            border-color: rgba(212, 160, 23, 0.25);
        }

        .prediction-card .hit-badge.low {
            color: var(--orange);
            background: rgba(249, 115, 22, 0.08);
            border-color: rgba(249, 115, 22, 0.25);
        }

        /* ============ HOT RANKING ============ */
        .hot-ranking-section {
            margin-bottom: var(--section-space);
        }

        .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0;
            letter-spacing: 0.5px;
        }

        .section-heading .section-heading-line {
            flex: 1;
            height: 1px;
            background: linear-gradient(90deg, rgba(34, 211, 238, 0.35) 0%, rgba(255, 255, 255, 0.06) 100%);
        }

        .section-heading .section-heading-note {
            font-size: 13px;
            color: var(--text-muted);
        }

        .ranking-list {
            display: grid;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            transition: var(--transition-base);
        }

        .ranking-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateX(4px);
        }

        .ranking-item .rank-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .ranking-item:nth-child(1) .rank-number {
            background: rgba(212, 160, 23, 0.2);
            color: var(--gold);
            border: 1px solid rgba(212, 160, 23, 0.35);
        }

        .ranking-item:nth-child(2) .rank-number {
            background: rgba(192, 192, 192, 0.15);
            color: #C0C0C0;
            border: 1px solid rgba(192, 192, 192, 0.3);
        }

        .ranking-item:nth-child(3) .rank-number {
            background: rgba(205, 127, 50, 0.15);
            color: #CD7F32;
            border: 1px solid rgba(205, 127, 50, 0.3);
        }

        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-item .rank-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-item .rank-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .ranking-item .rank-value {
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 700;
            color: var(--cyan);
            flex-shrink: 0;
        }

        /* ============ METHODOLOGY ============ */
        .methodology-section {
            margin-bottom: var(--section-space);
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            box-shadow: var(--shadow-lg);
        }

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

        .methodology-step {
            padding: 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-base);
        }

        .methodology-step:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(34, 211, 238, 0.2);
        }

        .methodology-step .step-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 16px;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.2);
        }

        .methodology-step h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .methodology-step p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ RELATED TOPICS ============ */
        .related-topics-section {
            margin-bottom: var(--section-space);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .topic-card {
            padding: 22px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            transition: var(--transition-base);
            text-align: left;
        }

        .topic-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(34, 211, 238, 0.25);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
        }

        .topic-card .topic-icon {
            font-size: 20px;
            color: var(--cyan);
            margin-bottom: 10px;
        }

        .topic-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ============ CTA CARD ============ */
        .cta-card {
            margin-bottom: var(--section-space);
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.55) 0%, rgba(14, 59, 46, 0.55) 100%);
            border: 1px solid rgba(34, 211, 238, 0.3);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-card .cta-text {
            flex: 1;
            min-width: 260px;
        }

        .cta-card .cta-text h2 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .cta-card .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .cta-card .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            flex-shrink: 0;
        }

        .cta-card .btn-primary:hover {
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }

        /* ============ FAQ ============ */
        .faq-section {
            margin-bottom: var(--section-space);
        }

        .faq-accordion {
            display: grid;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-glass-strong);
        }

        .faq-item .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            text-align: left;
            transition: var(--transition-base);
        }

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

        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            transition: var(--transition-base);
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            color: var(--green);
            background: rgba(52, 211, 153, 0.1);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(8, 14, 26, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 40px 0 24px;
            margin-top: var(--section-space);
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.5fr 0.7fr 0.8fr;
            gap: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon-small {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 15px;
            flex-shrink: 0;
        }

        .footer-brand .logo-text-small {
            font-size: 17px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 0;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-faint);
        }

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

        .footer-meta-links a {
            font-size: 12px;
            color: var(--text-faint);
        }

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

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .summary-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .methodology-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 0.8fr 0.8fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 18, 32, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px 20px;
                gap: 4px;
                display: none;
                max-height: calc(100vh - 60px);
                overflow-y: auto;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-cta-wrap {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .prediction-grid {
                grid-template-columns: 1fr;
            }
            .prediction-card .card-img-wrap {
                height: 170px;
            }
            .summary-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .summary-strip .summary-card {
                padding: 14px 16px;
            }
            .summary-strip .summary-value {
                font-size: 22px;
            }
            .page-header-section h1 {
                font-size: 26px;
            }
            .methodology-grid {
                grid-template-columns: 1fr;
            }
            .methodology-section {
                padding: 24px 20px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .cta-card {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-card .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .brand-logo .logo-text {
                font-size: 18px;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .page-header-section {
                padding: 28px 0 24px;
            }
            .page-header-section h1 {
                font-size: 22px;
            }
            .page-header-section .page-subtitle {
                font-size: 14px;
            }
            .filter-bar .filter-chip {
                padding: 5px 12px;
                font-size: 12px;
            }
            .summary-strip {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .summary-strip .summary-card {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 12px 16px;
            }
            .summary-strip .summary-label {
                margin-bottom: 0;
            }
            .summary-strip .summary-note {
                margin-top: 0;
            }
            .ranking-item {
                padding: 10px 14px;
                gap: 10px;
            }
            .ranking-item .rank-number {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }
            .ranking-item .rank-value {
                font-size: 14px;
            }
            .section-heading h2 {
                font-size: 20px;
            }
            .faq-item .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 13px;
            }
            .cta-card .cta-text h2 {
                font-size: 19px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-dark: #0B1220;
            --bg-dark2: #0D1B2A;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-glass-strong: rgba(255, 255, 255, 0.20);
            --text-primary: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.55);
            --text-faint: rgba(255, 255, 255, 0.38);
            --cyan: #22D3EE;
            --cyan-dark: #0891B2;
            --green: #34D399;
            --green-dark: #059669;
            --orange: #F97316;
            --orange-dark: #EA580C;
            --blue-deep: #1E3A8A;
            --blue-mid: #2563EB;
            --gold: #D4A017;
            --red: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
            --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --space-section: 72px;
            --space-section-mobile: 48px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

        a:hover {
            color: var(--green);
            text-decoration: none;
        }

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

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

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

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-cyan);
        }

        .brand-logo .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo .logo-text .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 13px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav a i {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition-base);
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a:hover i {
            color: var(--cyan);
        }

        .main-nav a.active {
            color: #fff;
            background: rgba(34, 211, 238, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .main-nav a.active i {
            color: var(--cyan);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-size: 13px;
            font-weight: 700;
            padding: 9px 18px;
            border-radius: 8px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow-cyan);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            color: var(--bg-dark);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            filter: brightness(1.08);
        }

        .nav-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--cyan);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            background: rgba(255, 255, 255, 0.02);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 14px 0;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .breadcrumb-wrap .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 12px;
            padding: 4px 10px;
            border: 1px solid var(--border-glass);
            border-radius: 6px;
            transition: var(--transition-base);
        }

        .breadcrumb-wrap .back-link:hover {
            color: var(--cyan);
            border-color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
        }

        .breadcrumb-wrap .crumb-divider {
            color: var(--text-faint);
        }

        .breadcrumb-wrap .crumb-current {
            color: #fff;
            font-weight: 600;
        }

        /* ============ PAGE HERO ============ */
        .page-hero {
            padding: 48px 0 36px;
            position: relative;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .page-hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .page-hero-content h1 {
            font-size: 32px;
            font-weight: 900;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.25;
            letter-spacing: 0.5px;
        }

        .page-hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero-content .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0 0 20px;
            line-height: 1.7;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            padding: 6px 12px;
            border-radius: 20px;
        }

        .page-hero-visual {
            position: relative;
            min-height: 240px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-lg);
        }

        .page-hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 240px;
        }

        .page-hero-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.3) 0%, rgba(11, 18, 32, 0.75) 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }

        .visual-overlay-content {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .visual-overlay-content .stat-badge {
            background: rgba(11, 18, 32, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            padding: 8px 14px;
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .visual-overlay-content .stat-badge .stat-num {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--green);
        }

        /* ============ SECTION BASE ============ */
        main {
            padding-bottom: var(--space-section);
        }

        .section-block {
            padding: 34px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 22px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0;
            letter-spacing: 0.3px;
        }

        .section-header .section-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-header .section-link:hover {
            color: var(--green);
        }

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

        .summary-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: var(--transition-base);
        }

        .summary-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .summary-card .summary-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            background: rgba(34, 211, 238, 0.1);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.2);
        }

        .summary-card .summary-icon.green {
            background: rgba(52, 211, 153, 0.1);
            color: var(--green);
            border-color: rgba(52, 211, 153, 0.2);
        }

        .summary-card .summary-icon.gold {
            background: rgba(212, 160, 23, 0.1);
            color: var(--gold);
            border-color: rgba(212, 160, 23, 0.2);
        }

        .summary-card .summary-icon.orange {
            background: rgba(249, 115, 22, 0.1);
            color: var(--orange);
            border-color: rgba(249, 115, 22, 0.2);
        }

        .summary-card .summary-info .summary-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 2px;
        }

        .summary-card .summary-info .summary-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .summary-card .summary-info .summary-note {
            font-size: 11px;
            color: var(--text-faint);
        }

        /* ============ GUIDE CARDS GRID ============ */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guide-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-glass-strong);
        }

        .guide-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

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

        .guide-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(8px);
            color: var(--cyan);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

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

        .guide-card .card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.45;
        }

        .guide-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 14px;
            line-height: 1.6;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
        }

        .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .card-meta .meta-left i {
            color: var(--text-faint);
            font-size: 11px;
        }

        .card-meta .hit-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--green);
            font-weight: 600;
            font-size: 12px;
        }

        .card-meta .hit-badge i {
            color: var(--green);
        }

        /* ============ RANKING ============ */
        .ranking-section {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 24px 26px;
        }

        .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .ranking-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-glass);
            transform: translateX(4px);
        }

        .ranking-item .rank-num {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 900;
            width: 38px;
            text-align: center;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .ranking-item:nth-child(1) .rank-num {
            color: var(--gold);
        }

        .ranking-item:nth-child(2) .rank-num {
            color: #C0C0C0;
        }

        .ranking-item:nth-child(3) .rank-num {
            color: #CD7F32;
        }

        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-item .rank-info .rank-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-item .rank-info .rank-desc {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-item .rank-count {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--green);
            white-space: nowrap;
        }

        /* ============ RULES ============ */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .rule-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: var(--transition-base);
        }

        .rule-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .rule-card .rule-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            margin-bottom: 12px;
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.15) 0%, rgba(52, 211, 153, 0.15) 100%);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.2);
        }

        .rule-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .rule-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ CTA ============ */
        .cta-section-block {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.35) 0%, rgba(14, 59, 46, 0.45) 100%);
            border: 1px solid var(--border-glass-strong);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-section-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-text h3 {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark);
            font-size: 14px;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow-cyan);
            white-space: nowrap;
        }

        .btn-cta-primary:hover {
            color: var(--bg-dark);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            filter: brightness(1.08);
        }

        .btn-cta-primary:focus {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-glass-strong);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
            gap: 12px;
        }

        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--cyan);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-item .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(11, 18, 32, 0.9);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 40px 0 20px;
            margin-top: 40px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-logo .logo-icon-small {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 14px;
        }

        .footer-logo .logo-text-small {
            font-size: 17px;
            font-weight: 900;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 16px;
            font-size: 12px;
            color: var(--text-faint);
        }

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

        .footer-bottom .footer-meta-links a {
            color: var(--text-muted);
            font-size: 12px;
        }

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

        .footer-bottom .footer-meta-links span {
            color: var(--text-faint);
        }

        /* ============ RESPONSIVE ============ */
        @media screen and (max-width: 1024px) {
            .page-hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .page-hero-visual {
                min-height: 200px;
            }

            .page-hero-visual img {
                min-height: 200px;
            }

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

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

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

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media screen and (max-width: 768px) {
            .header-inner {
                height: 60px;
            }

            .nav-cta-wrap {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 18, 32, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 16px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                max-height: 0;
                overflow: hidden;
                opacity: 0;
                transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
                pointer-events: none;
                z-index: 999;
            }

            .main-nav.open {
                max-height: 400px;
                opacity: 1;
                pointer-events: auto;
            }

            .main-nav a {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
            }

            .page-hero {
                padding: 32px 0 24px;
            }

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

            .page-hero-content .hero-subtitle {
                font-size: 14px;
            }

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

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

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

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

            .ranking-section {
                padding: 18px 16px;
            }

            .cta-section-block {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer-brand {
                grid-column: auto;
            }

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

        @media screen and (max-width: 520px) {
            .container-fluid {
                padding-left: 14px;
                padding-right: 14px;
            }

            .page-hero-content h1 {
                font-size: 21px;
            }

            .page-hero-visual {
                min-height: 160px;
            }

            .page-hero-visual img {
                min-height: 160px;
            }

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

            .summary-card .summary-info .summary-value {
                font-size: 17px;
            }

            .ranking-item {
                padding: 10px 12px;
                gap: 10px;
            }

            .ranking-item .rank-num {
                font-size: 17px;
                width: 30px;
            }

            .btn-cta-primary {
                font-size: 13px;
                padding: 10px 18px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-dark: #0B1220;
            --bg-dark2: #0D1B2A;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-glass-strong: rgba(255, 255, 255, 0.20);
            --text-primary: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.55);
            --text-faint: rgba(255, 255, 255, 0.38);
            --cyan: #22D3EE;
            --cyan-dark: #0891B2;
            --green: #34D399;
            --green-dark: #059669;
            --orange: #F97316;
            --orange-dark: #EA580C;
            --blue-deep: #1E3A8A;
            --blue-mid: #2563EB;
            --gold: #D4A017;
            --red: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
            --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --space-section: 72px;
            --space-section-mobile: 48px;
            --container-max: 1200px;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

        a:hover {
            color: var(--green);
            text-decoration: none;
        }

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

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

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

        @media (max-width: 640px) {
            .container-fluid {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-cyan);
        }

        .brand-logo .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo .logo-text .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav a:hover {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.12);
            box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.25);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark) !important;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            color: var(--bg-dark) !important;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-glass);
            color: var(--text-primary);
            font-size: 20px;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-glass-strong);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            background: rgba(11, 18, 32, 0.6);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 14px 0;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glass);
            padding: 4px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
            cursor: pointer;
            margin-right: 10px;
        }

        .breadcrumb-back:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.3);
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: '/';
            color: var(--text-faint);
            font-size: 11px;
            margin: 0 2px;
        }

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

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

        .breadcrumb-list .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============ CATEGORY HERO ============ */
        .category-hero {
            position: relative;
            padding: 56px 0 48px;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.3) 0%, rgba(11, 18, 32, 0.6) 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/068413b61852df3f.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 0%, var(--bg-dark) 100%);
            z-index: 1;
            pointer-events: none;
        }

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

        .category-hero-content {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .category-hero-title {
            font-size: 32px;
            font-weight: 900;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .category-hero-title .highlight {
            color: var(--cyan);
        }

        .category-hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 20px;
            max-width: 580px;
        }

        .category-hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .category-hero-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition-base);
        }

        .category-hero-tags .tag:hover {
            background: rgba(34, 211, 238, 0.12);
            border-color: rgba(34, 211, 238, 0.35);
            color: var(--cyan);
        }

        /* Data summary strip */
        .data-summary-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-top: 8px;
        }

        .data-summary-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: var(--transition-base);
        }

        .data-summary-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-2px);
        }

        .data-summary-item .summary-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1.2;
            display: block;
        }

        .data-summary-item .summary-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ============ MAIN CONTENT ============ */
        .main-content {
            padding: 0 0 var(--space-section);
        }

        .section-block {
            padding: var(--space-section) 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .section-block:last-child {
            border-bottom: none;
        }

        .section-block:first-of-type {
            padding-top: 48px;
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            letter-spacing: 0.3px;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
        }

        .section-heading .heading-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
            font-size: 16px;
            margin-bottom: 12px;
        }

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

        .info-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .info-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .info-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: linear-gradient(135deg, #1E3A8A 0%, #0E3B2E 100%);
            flex-shrink: 0;
        }

        .info-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
            opacity: 0.85;
        }

        .info-card:hover .info-card-img img {
            transform: scale(1.05);
            opacity: 1;
        }

        .info-card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 18, 32, 0.8);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: var(--cyan);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(34, 211, 238, 0.35);
        }

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

        .info-card-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.5;
            margin: 0 0 10px;
        }

        .info-card-title a {
            color: #fff;
        }

        .info-card-title a:hover {
            color: var(--cyan);
        }

        .info-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .info-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: var(--text-faint);
        }

        .info-card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .info-card-meta .meta-hot {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--orange);
            font-weight: 600;
        }

        .info-card-meta .meta-hot i {
            font-size: 12px;
        }

        /* ============ HOT RANKING ============ */
        .hot-ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hot-ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: var(--transition-base);
        }

        .hot-ranking-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateX(4px);
        }

        .ranking-number {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-faint);
            width: 40px;
            text-align: center;
            flex-shrink: 0;
        }

        .hot-ranking-item:nth-child(1) .ranking-number {
            color: var(--gold);
        }

        .hot-ranking-item:nth-child(2) .ranking-number {
            color: var(--cyan);
        }

        .hot-ranking-item:nth-child(3) .ranking-number {
            color: var(--orange);
        }

        .ranking-content {
            flex: 1;
        }

        .ranking-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            display: block;
            line-height: 1.4;
        }

        .ranking-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .ranking-badge {
            flex-shrink: 0;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            background: rgba(52, 211, 153, 0.15);
            color: var(--green);
            border: 1px solid rgba(52, 211, 153, 0.3);
        }

        .ranking-badge.rising {
            background: rgba(249, 115, 22, 0.15);
            color: var(--orange);
            border-color: rgba(249, 115, 22, 0.3);
        }

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

        .methodology-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: var(--transition-base);
            text-align: center;
        }

        .methodology-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-3px);
        }

        .methodology-item .method-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 12px;
        }

        .methodology-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .methodology-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ TAG CLOUD ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-cloud .cloud-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-glass);
            border-radius: 25px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .tag-cloud .cloud-tag:hover {
            background: rgba(34, 211, 238, 0.12);
            border-color: rgba(34, 211, 238, 0.4);
            color: var(--cyan);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
        }

        .tag-cloud .cloud-tag i {
            font-size: 13px;
        }

        /* ============ CTA / SUBSCRIBE ============ */
        .subscribe-card {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(14, 59, 46, 0.6) 100%);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass-strong);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .subscribe-card p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 20px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .subscribe-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .subscribe-form input[type="text"],
        .subscribe-form input[type="email"],
        .subscribe-form input[type="tel"] {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: #fff;
            font-size: 14px;
            transition: var(--transition-base);
            width: 100%;
            outline: none;
        }

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

        .subscribe-form input:focus {
            border-color: var(--cyan);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .subscribe-form .form-check-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .subscribe-form .form-check-row input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--cyan);
            cursor: pointer;
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            color: var(--bg-dark) !important;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            width: 100%;
        }

        .btn-primary-glow:hover {
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
            filter: brightness(1.1);
        }

        .btn-primary-glow:focus {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-glass-strong);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            background: rgba(52, 211, 153, 0.2);
            color: var(--green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(11, 18, 32, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-logo .logo-icon-small {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 13px;
        }

        .footer-logo .logo-text-small {
            font-size: 17px;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

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

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

        .footer-bottom .footer-meta-links a {
            color: var(--text-muted);
            font-size: 12px;
        }

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

        .footer-bottom .footer-meta-links span {
            color: var(--text-faint);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                font-size: 13px;
                padding: 8px 10px;
            }

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

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

            .category-hero-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .data-summary-strip {
                grid-template-columns: repeat(4, 1fr);
            }

            .subscribe-card {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 18, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 4px;
                display: none;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
                max-height: calc(100vh - 60px);
                overflow-y: auto;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                font-size: 15px;
                padding: 12px 16px;
                border-radius: 8px;
            }

            .nav-cta-wrap {
                display: none;
            }

            .brand-logo .logo-text {
                font-size: 18px;
            }

            .brand-logo .logo-text .logo-sub {
                font-size: 8px;
            }

            .category-hero {
                padding: 36px 0 32px;
            }

            .category-hero-title {
                font-size: 24px;
            }

            .category-hero-desc {
                font-size: 14px;
            }

            .data-summary-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .data-summary-item .summary-value {
                font-size: 20px;
            }

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

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

            .section-block {
                padding: var(--space-section-mobile) 0;
            }

            .section-heading h2 {
                font-size: 20px;
            }

            .info-card-img {
                height: 160px;
            }

            .subscribe-card {
                padding: 24px 20px;
                border-radius: var(--radius-md);
            }

            .subscribe-card h3 {
                font-size: 19px;
            }

            .subscribe-form .form-row {
                grid-template-columns: 1fr;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .hot-ranking-item {
                padding: 14px 16px;
                gap: 10px;
            }

            .ranking-number {
                font-size: 20px;
                width: 32px;
            }

            .ranking-title {
                font-size: 14px;
            }

            .faq-question {
                font-size: 14px;
                padding: 16px 18px;
            }

            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container-fluid {
                padding-left: 12px;
                padding-right: 12px;
            }

            .category-hero-title {
                font-size: 20px;
            }

            .data-summary-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .data-summary-item {
                padding: 14px 10px;
            }

            .data-summary-item .summary-value {
                font-size: 18px;
            }

            .data-summary-item .summary-label {
                font-size: 10px;
            }

            .tag-cloud .cloud-tag {
                font-size: 13px;
                padding: 8px 16px;
            }

            .breadcrumb-back {
                font-size: 11px;
                padding: 3px 8px;
            }

            .breadcrumb-list {
                font-size: 11px;
            }
        }

/* roulang page: category4 */
/* ============ 设计变量 ============ */
    :root {
        --bg-dark: #0B1220;
        --bg-dark2: #0D1B2A;
        --bg-card: rgba(255, 255, 255, 0.06);
        --bg-card-hover: rgba(255, 255, 255, 0.10);
        --border-glass: rgba(255, 255, 255, 0.12);
        --border-glass-strong: rgba(255, 255, 255, 0.20);
        --text-primary: rgba(255, 255, 255, 0.92);
        --text-secondary: rgba(255, 255, 255, 0.75);
        --text-muted: rgba(255, 255, 255, 0.55);
        --text-faint: rgba(255, 255, 255, 0.38);
        --cyan: #22D3EE;
        --cyan-dark: #0891B2;
        --green: #34D399;
        --green-dark: #059669;
        --orange: #F97316;
        --orange-dark: #EA580C;
        --blue-deep: #1E3A8A;
        --blue-mid: #2563EB;
        --gold: #D4A017;
        --red: #EF4444;
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 8px;
        --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
        --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
        --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
        --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        --space-section: 72px;
        --space-section-mobile: 48px;
        --container-max: 1200px;
    }

    /* ============ Reset & Base ============ */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

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

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-dark);
        background-image:
            radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
            radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
            radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
            linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
        background-attachment: fixed;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        margin: 0;
        padding: 0;
    }

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

    a:hover {
        color: var(--green);
        text-decoration: none;
    }

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

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
        outline: none;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible {
        outline: 2px solid var(--cyan);
        outline-offset: 2px;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-sans);
        color: #fff;
        margin-top: 0;
        font-weight: 700;
        line-height: 1.35;
    }

    h1 {
        font-size: 32px;
        font-weight: 900;
        letter-spacing: 0.5px;
    }

    h2 {
        font-size: 24px;
        font-weight: 700;
    }

    h3 {
        font-size: 17px;
        font-weight: 600;
    }

    h4 {
        font-size: 15px;
        font-weight: 600;
    }

    p {
        color: var(--text-secondary);
        margin-top: 0;
        margin-bottom: 16px;
    }

    ul, ol {
        padding-left: 20px;
        color: var(--text-secondary);
    }

    /* ============ 容器 ============ */
    .container-fluid {
        max-width: var(--container-max);
        padding-left: 24px;
        padding-right: 24px;
        margin: 0 auto;
    }

    /* ============ Header / Nav ============ */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(11, 18, 32, 0.85);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        transition: var(--transition-smooth);
    }

    .site-header.scrolled {
        background: rgba(11, 18, 32, 0.95);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        gap: 16px;
    }

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

    .brand-logo .logo-icon {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--bg-dark);
        font-size: 18px;
        font-weight: 900;
        flex-shrink: 0;
        box-shadow: var(--shadow-glow-cyan);
    }

    .brand-logo .logo-text {
        font-size: 20px;
        font-weight: 900;
        color: #fff;
        letter-spacing: 0.5px;
        line-height: 1.2;
    }

    .brand-logo .logo-text .logo-sub {
        display: block;
        font-size: 10px;
        font-weight: 500;
        color: var(--text-muted);
        letter-spacing: 2px;
        text-transform: uppercase;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 2px;
        flex: 1;
        justify-content: center;
    }

    .main-nav a {
        color: var(--text-secondary);
        font-size: 14px;
        font-weight: 600;
        padding: 8px 13px;
        border-radius: 8px;
        transition: var(--transition-base);
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .main-nav a i {
        font-size: 12px;
        opacity: 0.7;
    }

    .main-nav a:hover {
        color: #fff;
        background: rgba(34, 211, 238, 0.10);
    }

    .main-nav a.active {
        color: var(--cyan);
        background: rgba(34, 211, 238, 0.15);
        border: 1px solid rgba(34, 211, 238, 0.25);
    }

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

    .btn-nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        color: var(--bg-dark);
        font-weight: 700;
        font-size: 13px;
        padding: 9px 18px;
        border-radius: 8px;
        box-shadow: var(--shadow-glow-cyan);
        transition: var(--transition-base);
        white-space: nowrap;
    }

    .btn-nav-cta:hover {
        color: var(--bg-dark);
        box-shadow: var(--shadow-glow-green);
        transform: translateY(-2px);
        filter: brightness(1.1);
    }

    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid var(--border-glass);
        border-radius: 8px;
        color: #fff;
        font-size: 20px;
        padding: 8px 12px;
        cursor: pointer;
        transition: var(--transition-base);
        flex-shrink: 0;
    }

    .nav-toggle:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: var(--cyan);
    }

    /* ============ Breadcrumb ============ */
    .breadcrumb-wrapper {
        padding: 18px 0 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 8px;
    }

    .breadcrumb-back {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        font-size: 13px;
        color: var(--text-muted);
        cursor: pointer;
        background: none;
        border: none;
        padding: 4px 0;
        transition: var(--transition-base);
    }

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

    .breadcrumb-trail {
        font-size: 12px;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 6px;
        flex-wrap: wrap;
    }

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

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

    .breadcrumb-trail .sep {
        color: var(--text-faint);
        font-size: 11px;
    }

    .breadcrumb-trail .current {
        color: #fff;
        font-weight: 600;
    }

    /* ============ Category Hero / Intro ============ */
    .category-intro {
        padding: 28px 0 36px;
        position: relative;
    }

    .category-intro::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background:
            radial-gradient(ellipse at 15% 30%, rgba(34, 211, 238, 0.08) 0%, transparent 55%),
            radial-gradient(ellipse at 85% 50%, rgba(52, 211, 153, 0.06) 0%, transparent 50%);
        pointer-events: none;
        border-radius: 16px;
    }

    .category-intro .intro-title {
        position: relative;
        z-index: 1;
    }

    .category-intro h1 {
        font-size: 32px;
        font-weight: 900;
        margin-bottom: 12px;
        letter-spacing: 0.5px;
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }

    .category-intro h1 .badge-cat {
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        color: var(--bg-dark);
        font-size: 13px;
        font-weight: 700;
        padding: 4px 12px;
        border-radius: 6px;
        letter-spacing: 0;
        flex-shrink: 0;
    }

    .category-intro .intro-desc {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 700px;
        margin-bottom: 0;
        position: relative;
        z-index: 1;
        line-height: 1.8;
    }

    /* ============ 数据摘要条 ============ */
    .data-ribbon {
        margin: 0 0 48px;
    }

    .data-ribbon .ribbon-card {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md);
        padding: 18px 16px;
        text-align: center;
        transition: var(--transition-base);
        height: 100%;
    }

    .data-ribbon .ribbon-card:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-glass-strong);
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }

    .data-ribbon .ribbon-value {
        font-family: var(--font-mono);
        font-size: 26px;
        font-weight: 700;
        color: var(--cyan);
        letter-spacing: 0.5px;
        display: block;
        margin-bottom: 4px;
    }

    .data-ribbon .ribbon-value.green {
        color: var(--green);
    }

    .data-ribbon .ribbon-value.orange {
        color: var(--orange);
    }

    .data-ribbon .ribbon-value.gold {
        color: var(--gold);
    }

    .data-ribbon .ribbon-label {
        font-size: 12px;
        color: var(--text-muted);
        font-weight: 500;
    }

    /* ============ Section通用 ============ */
    .page-section {
        padding-bottom: var(--space-section);
    }

    .section-title-wrap {
        margin-bottom: 24px;
    }

    .section-title-wrap h2 {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 6px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .section-title-wrap h2 i {
        color: var(--cyan);
        font-size: 18px;
    }

    .section-title-wrap .section-sub {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 0;
    }

    .divider-glow {
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.35), rgba(52, 211, 153, 0.35), transparent);
        margin: 8px 0 24px;
        border: none;
    }

    /* ============ 复盘列表卡片 ============ */
    .review-card {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: var(--transition-smooth);
        height: 100%;
        display: flex;
        flex-direction: column;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .review-card:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-glass-strong);
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }

    .review-card .card-img {
        position: relative;
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--bg-dark2);
    }

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

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

    .review-card .card-img .img-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(180deg, transparent 30%, rgba(11, 18, 32, 0.75) 100%);
        pointer-events: none;
    }

    .review-card .card-tag {
        position: absolute;
        top: 12px;
        left: 12px;
        background: rgba(11, 18, 32, 0.75);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(34, 211, 238, 0.4);
        color: var(--cyan);
        font-size: 11px;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: 6px;
        letter-spacing: 0.5px;
        z-index: 2;
    }

    .review-card .card-body {
        padding: 18px 18px 16px;
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .review-card .card-body h3 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 4px;
        line-height: 1.45;
        color: #fff;
    }

    .review-card .card-body h3 a {
        color: #fff;
        text-decoration: none;
        transition: var(--transition-base);
    }

    .review-card .card-body h3 a:hover {
        color: var(--cyan);
    }

    .review-card .card-summary {
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.6;
        margin-bottom: 0;
        flex: 1;
    }

    .review-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        flex-wrap: wrap;
        margin-top: 8px;
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .review-card .card-date {
        font-size: 12px;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .review-card .card-hit {
        font-family: var(--font-mono);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 10px;
        border-radius: 6px;
        letter-spacing: 0.3px;
    }

    .review-card .card-hit.high {
        background: rgba(52, 211, 153, 0.15);
        color: var(--green);
        border: 1px solid rgba(52, 211, 153, 0.3);
    }

    .review-card .card-hit.mid {
        background: rgba(34, 211, 238, 0.15);
        color: var(--cyan);
        border: 1px solid rgba(34, 211, 238, 0.3);
    }

    .review-card .card-hit.low {
        background: rgba(249, 115, 22, 0.15);
        color: var(--orange);
        border: 1px solid rgba(249, 115, 22, 0.3);
    }

    .list-more-btn {
        text-align: center;
        margin-top: 28px;
    }

    .btn-outline-glow {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: transparent;
        border: 1px solid var(--cyan);
        color: var(--cyan);
        font-size: 14px;
        font-weight: 600;
        padding: 10px 24px;
        border-radius: 8px;
        cursor: pointer;
        transition: var(--transition-base);
        text-decoration: none;
    }

    .btn-outline-glow:hover {
        background: rgba(34, 211, 238, 0.12);
        color: #fff;
        border-color: var(--green);
        box-shadow: 0 0 16px rgba(34, 211, 238, 0.2);
    }

    /* ============ 热门排行 ============ */
    .ranking-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .ranking-item {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md);
        padding: 14px 18px;
        display: flex;
        align-items: center;
        gap: 14px;
        transition: var(--transition-base);
        cursor: pointer;
    }

    .ranking-item:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-glass-strong);
        transform: translateX(4px);
    }

    .ranking-item .rank-num {
        font-family: var(--font-mono);
        font-size: 22px;
        font-weight: 900;
        color: var(--text-faint);
        min-width: 38px;
        text-align: center;
        flex-shrink: 0;
    }

    .ranking-item:nth-child(1) .rank-num {
        color: var(--gold);
    }

    .ranking-item:nth-child(2) .rank-num {
        color: #E0E0E0;
    }

    .ranking-item:nth-child(3) .rank-num {
        color: #CD7F32;
    }

    .ranking-item .rank-info {
        flex: 1;
        min-width: 0;
    }

    .ranking-item .rank-title {
        font-size: 14px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 2px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .ranking-item .rank-sub {
        font-size: 12px;
        color: var(--text-muted);
    }

    .ranking-item .rank-heat {
        font-family: var(--font-mono);
        font-size: 13px;
        color: var(--orange);
        font-weight: 600;
        white-space: nowrap;
        flex-shrink: 0;
    }

    /* ============ 方法论区块 ============ */
    .method-panel {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-lg);
        padding: 28px 24px;
        position: relative;
        overflow: hidden;
    }

    .method-panel::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(ellipse at 20% 20%, rgba(34, 211, 238, 0.06) 0%, transparent 50%);
        pointer-events: none;
    }

    .method-panel .method-step {
        display: flex;
        gap: 14px;
        align-items: flex-start;
        margin-bottom: 14px;
        position: relative;
        z-index: 1;
    }

    .method-panel .method-step:last-child {
        margin-bottom: 0;
    }

    .method-panel .step-dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        flex-shrink: 0;
        margin-top: 5px;
        box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
    }

    .method-panel .step-content h4 {
        font-size: 15px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 4px;
    }

    .method-panel .step-content p {
        font-size: 13px;
        color: var(--text-secondary);
        margin-bottom: 0;
        line-height: 1.7;
    }

    /* ============ 相关专题 ============ */
    .topic-card {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md);
        padding: 20px 18px;
        text-align: center;
        transition: var(--transition-base);
        height: 100%;
        display: block;
        text-decoration: none;
    }

    .topic-card:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-glass-strong);
        transform: translateY(-3px);
        box-shadow: var(--shadow-lg);
    }

    .topic-card .topic-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
        margin: 0 auto 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        background: rgba(34, 211, 238, 0.15);
        color: var(--cyan);
        border: 1px solid rgba(34, 211, 238, 0.25);
    }

    .topic-card h4 {
        font-size: 15px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 6px;
    }

    .topic-card p {
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 0;
        line-height: 1.6;
    }

    /* ============ CTA区域 ============ */
    .cta-panel {
        background: linear-gradient(135deg, rgba(14, 59, 46, 0.6) 0%, rgba(30, 58, 138, 0.5) 100%);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass-strong);
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .cta-panel::before {
        content: '';
        position: absolute;
        top: -60%;
        left: -20%;
        width: 70%;
        height: 220%;
        background: radial-gradient(ellipse, rgba(34, 211, 238, 0.12) 0%, transparent 60%);
        pointer-events: none;
        transform: rotate(15deg);
    }

    .cta-panel h3 {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 8px;
        position: relative;
        z-index: 1;
    }

    .cta-panel p {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 20px;
        position: relative;
        z-index: 1;
    }

    .btn-glow-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        color: var(--bg-dark);
        font-weight: 700;
        font-size: 15px;
        padding: 12px 30px;
        border-radius: 8px;
        box-shadow: var(--shadow-glow-cyan);
        cursor: pointer;
        border: none;
        transition: var(--transition-base);
        position: relative;
        z-index: 1;
        text-decoration: none;
    }

    .btn-glow-primary:hover {
        color: var(--bg-dark);
        box-shadow: var(--shadow-glow-green);
        transform: translateY(-2px);
        filter: brightness(1.12);
    }

    /* ============ FAQ手风琴 ============ */
    .faq-accordion {
        margin-top: 8px;
    }

    .faq-item {
        background: var(--bg-card);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-md);
        margin-bottom: 10px;
        overflow: hidden;
        transition: var(--transition-base);
    }

    .faq-item:hover {
        border-color: var(--border-glass-strong);
    }

    .faq-question {
        background: transparent;
        border: none;
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        padding: 16px 18px;
        width: 100%;
        text-align: left;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        transition: var(--transition-base);
    }

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

    .faq-question .faq-icon {
        flex-shrink: 0;
        transition: transform 0.3s ease;
        color: var(--text-muted);
        font-size: 13px;
    }

    .faq-item.open .faq-question .faq-icon {
        transform: rotate(45deg);
        color: var(--cyan);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
        padding: 0 18px;
    }

    .faq-item.open .faq-answer {
        max-height: 240px;
        padding-bottom: 16px;
    }

    .faq-answer p {
        font-size: 13px;
        color: var(--text-secondary);
        margin-bottom: 0;
        line-height: 1.7;
    }

    /* ============ Footer ============ */
    .site-footer {
        background: rgba(7, 13, 26, 0.9);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 48px 0 28px;
        margin-top: 20px;
    }

    .footer-inner {
        display: grid;
        grid-template-columns: 1.3fr 0.8fr 0.8fr;
        gap: 36px;
        margin-bottom: 28px;
    }

    .footer-brand .footer-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
    }

    .footer-logo .logo-icon-small {
        width: 30px;
        height: 30px;
        border-radius: 8px;
        background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--bg-dark);
        font-size: 14px;
        flex-shrink: 0;
    }

    .footer-logo .logo-text-small {
        font-size: 17px;
        font-weight: 900;
        color: #fff;
        letter-spacing: 0.5px;
    }

    .footer-brand p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 0;
        max-width: 300px;
    }

    .footer-col h5 {
        font-size: 15px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 14px;
    }

    .footer-col ul {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-col ul li a {
        font-size: 13px;
        color: var(--text-muted);
        text-decoration: none;
        transition: var(--transition-base);
    }

    .footer-col ul li a:hover {
        color: var(--cyan);
        padding-left: 4px;
    }

    .footer-bottom {
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        font-size: 12px;
        color: var(--text-faint);
    }

    .footer-bottom .footer-meta-links {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .footer-bottom .footer-meta-links a {
        color: var(--text-muted);
        font-size: 12px;
    }

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

    .footer-bottom .footer-meta-links span {
        color: var(--text-faint);
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1024px) {
        .main-nav {
            gap: 0;
        }
        .main-nav a {
            padding: 8px 9px;
            font-size: 13px;
        }
        .footer-inner {
            grid-template-columns: 1fr 1fr 0.7fr;
            gap: 24px;
        }
    }

    @media (max-width: 768px) {
        .header-inner {
            height: auto;
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .main-nav {
            display: none;
            order: 3;
            flex-basis: 100%;
            flex-direction: column;
            align-items: stretch;
            gap: 2px;
            padding: 10px 0 6px;
            background: rgba(11, 18, 32, 0.95);
            border-radius: 12px;
            border: 1px solid var(--border-glass);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
        }
        .main-nav.open {
            max-height: 400px;
            padding: 12px 10px 8px;
        }
        .main-nav a {
            padding: 10px 14px;
            font-size: 14px;
            border-radius: 6px;
        }
        .nav-cta-wrap {
            order: 2;
        }
        .nav-toggle {
            display: block;
            order: 3;
        }
        .category-intro h1 {
            font-size: 24px;
        }
        .category-intro .intro-desc {
            font-size: 14px;
        }
        .data-ribbon .ribbon-value {
            font-size: 20px;
        }
        .page-section {
            padding-bottom: var(--space-section-mobile);
        }
        .footer-inner {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .method-panel {
            padding: 20px 16px;
        }
        .cta-panel {
            padding: 24px 18px;
        }
    }

    @media (max-width: 520px) {
        .container-fluid {
            padding-left: 14px;
            padding-right: 14px;
        }
        .brand-logo .logo-text {
            font-size: 17px;
        }
        .brand-logo .logo-text .logo-sub {
            font-size: 8px;
            letter-spacing: 1.5px;
        }
        .btn-nav-cta {
            font-size: 11px;
            padding: 7px 12px;
        }
        .category-intro h1 {
            font-size: 20px;
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
        }
        .breadcrumb-wrapper {
            flex-direction: column;
            align-items: flex-start;
        }
        .review-card .card-body {
            padding: 14px 14px 12px;
        }
        .review-card .card-body h3 {
            font-size: 14px;
        }
        .ranking-item {
            padding: 12px 14px;
            gap: 10px;
        }
        .ranking-item .rank-num {
            font-size: 18px;
            min-width: 28px;
        }
        .ranking-item .rank-title {
            font-size: 13px;
        }
        .cta-panel h3 {
            font-size: 18px;
        }
    }

/* roulang page: category5 */
:root {
            --bg-dark: #0B1220;
            --bg-dark2: #0D1B2A;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-glass-strong: rgba(255, 255, 255, 0.20);
            --text-primary: rgba(255, 255, 255, 0.92);
            --text-secondary: rgba(255, 255, 255, 0.75);
            --text-muted: rgba(255, 255, 255, 0.55);
            --text-faint: rgba(255, 255, 255, 0.38);
            --cyan: #22D3EE;
            --cyan-dark: #0891B2;
            --green: #34D399;
            --green-dark: #059669;
            --orange: #F97316;
            --orange-dark: #EA580C;
            --blue-deep: #1E3A8A;
            --blue-mid: #2563EB;
            --gold: #D4A017;
            --red: #EF4444;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.45);
            --shadow-glow-green: 0 0 32px rgba(52, 211, 153, 0.55);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            --font-mono: "Inter", "Roboto Mono", "SF Mono", Consolas, "Courier New", monospace;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --space-section: 72px;
            --space-section-mobile: 48px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 10%, rgba(30, 58, 138, 0.35) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(14, 59, 46, 0.5) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(30, 58, 138, 0.25) 0%, transparent 55%),
                linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

        a:hover {
            color: var(--green);
            text-decoration: none;
        }

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

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

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

        @media (max-width: 640px) {
            .container-fluid {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 18, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }

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

        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan) 0%, var(--green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 18px;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-cyan);
        }

        .brand-logo .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo .logo-text .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 14px;
            border-radius: 8px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .main-nav a i {
            margin-right: 4px;
            font-size: 12px;
        }

        .main-nav a:hover {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

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

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan), var(--green));
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 13px;
            box-shadow: var(--shadow-glow-cyan);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            color: var(--bg-dark);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
        }

        .btn-nav-cta i {
            font-size: 12px;
        }

        .nav-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            border-radius: 8px;
            color: var(--text-primary);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--border-glass-strong);
        }

        .nav-toggle i {
            font-size: 18px;
        }

        @media (max-width: 1023px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(11, 18, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-glass);
                padding: 16px 20px;
                gap: 4px;
                z-index: 999;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 8px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta-wrap {
                display: none;
            }

            .header-inner {
                height: 60px;
            }
        }

        @media (min-width: 1024px) {
            .nav-toggle {
                display: none;
            }
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            background: rgba(11, 18, 32, 0.6);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 14px 0;
        }

        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .breadcrumb-back {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-glass);
            border-radius: 6px;
            padding: 4px 10px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .breadcrumb-back:hover {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
            border-color: rgba(34, 211, 238, 0.3);
        }

        .breadcrumb-sep {
            color: var(--text-faint);
            font-size: 12px;
        }

        .breadcrumb-link {
            font-size: 12px;
            color: var(--text-muted);
            transition: var(--transition-base);
        }

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

        .breadcrumb-current {
            font-size: 12px;
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============ CATEGORY HEADER ============ */
        .category-head {
            padding: 40px 0 28px;
            position: relative;
            overflow: hidden;
        }

        .category-head::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-head::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(52, 211, 153, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-head-content {
            position: relative;
            z-index: 1;
        }

        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 14px;
        }

        .category-tag i {
            font-size: 11px;
        }

        .category-head h1 {
            font-size: 32px;
            font-weight: 900;
            color: #fff;
            margin: 0 0 12px;
            line-height: 1.3;
            letter-spacing: 0.3px;
        }

        .category-head h1 .highlight {
            background: linear-gradient(135deg, var(--cyan), var(--green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-head p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0;
            line-height: 1.8;
        }

        @media (max-width: 640px) {
            .category-head {
                padding: 28px 0 20px;
            }

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

            .category-head p {
                font-size: 14px;
            }
        }

        /* ============ STATS STRIP ============ */
        .stats-strip {
            padding: 20px 0 8px;
        }

        .stats-strip .row {
            margin: 0 -8px;
        }

        .stats-strip .columns {
            padding: 0 8px;
        }

        .stat-mini-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition-base);
            height: 100%;
        }

        .stat-mini-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-2px);
        }

        .stat-mini-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(34, 211, 238, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 16px;
            flex-shrink: 0;
        }

        .stat-mini-icon.green {
            background: rgba(52, 211, 153, 0.12);
            color: var(--green);
        }

        .stat-mini-icon.gold {
            background: rgba(212, 160, 23, 0.12);
            color: var(--gold);
        }

        .stat-mini-icon.orange {
            background: rgba(249, 115, 22, 0.12);
            color: var(--orange);
        }

        .stat-mini-info {
            min-width: 0;
        }

        .stat-mini-info .stat-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .stat-mini-info .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        @media (max-width: 768px) {
            .stats-strip .columns {
                flex: 0 0 50%;
                max-width: 50%;
            }

            .stat-mini-card {
                margin-bottom: 8px;
            }
        }

        @media (max-width: 480px) {
            .stats-strip .columns {
                flex: 0 0 100%;
                max-width: 100%;
            }
        }

        /* ============ SECTION COMMON ============ */
        .section-block {
            padding: 48px 0;
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            letter-spacing: 0.3px;
        }

        .section-heading p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
        }

        @media (max-width: 640px) {
            .section-block {
                padding: 34px 0;
            }

            .section-heading h2 {
                font-size: 20px;
            }
        }

        /* ============ ACADEMY LIST CARDS ============ */
        .academy-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .academy-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-lg);
        }

        .academy-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
        }

        .academy-card-img {
            position: relative;
            height: 170px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .academy-card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 18, 32, 0.7) 100%);
        }

        .academy-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 11px;
            font-weight: 600;
            color: #fff;
            background: rgba(11, 18, 32, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 6px;
            padding: 3px 10px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            z-index: 2;
        }

        .academy-card-body {
            padding: 18px 18px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .academy-card-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.45;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .academy-card-title a {
            color: #fff;
            transition: var(--transition-base);
        }

        .academy-card-title a:hover {
            color: var(--cyan);
        }

        .academy-card-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .academy-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
        }

        .academy-card-date {
            font-size: 12px;
            color: var(--text-faint);
        }

        .academy-card-heat {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--orange);
            background: rgba(249, 115, 22, 0.08);
            border-radius: 4px;
            padding: 2px 8px;
        }

        .academy-card-heat i {
            font-size: 10px;
        }

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

        @media (max-width: 640px) {
            .academy-list-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .academy-card-img {
                height: 160px;
            }
        }

        /* ============ VIEW MORE ============ */
        .view-more-row {
            text-align: center;
            margin-top: 28px;
        }

        .btn-view-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--cyan);
            color: var(--cyan);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition-base);
        }

        .btn-view-more:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
        }

        /* ============ RANKING LIST ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            transition: var(--transition-base);
        }

        .ranking-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateX(4px);
        }

        .ranking-number {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
            background: rgba(34, 211, 238, 0.1);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .ranking-number.top1 {
            background: rgba(212, 160, 23, 0.12);
            color: var(--gold);
            border-color: rgba(212, 160, 23, 0.3);
            box-shadow: 0 0 14px rgba(212, 160, 23, 0.2);
        }

        .ranking-number.top2 {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.2);
        }

        .ranking-number.top3 {
            background: rgba(249, 115, 22, 0.1);
            color: var(--orange);
            border-color: rgba(249, 115, 22, 0.25);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0 0 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-desc {
            font-size: 12px;
            color: var(--text-faint);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-heat {
            font-size: 12px;
            font-weight: 600;
            color: var(--green);
            white-space: nowrap;
            flex-shrink: 0;
        }

        @media (max-width: 640px) {
            .ranking-item {
                padding: 12px 14px;
                gap: 10px;
            }

            .ranking-number {
                width: 28px;
                height: 28px;
                font-size: 13px;
                border-radius: 6px;
            }
        }

        /* ============ METHODOLOGY ============ */
        .methodology-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .method-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .method-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--cyan), var(--green));
            opacity: 0;
            transition: var(--transition-base);
        }

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

        .method-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
            transform: translateY(-4px);
        }

        .method-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 700;
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.25);
            margin-bottom: 14px;
        }

        .method-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .method-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .methodology-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ============ TOPICS TAGS ============ */
        .topics-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .topic-tag i {
            font-size: 11px;
            color: var(--cyan);
        }

        .topic-tag:hover {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(34, 211, 238, 0.2);
        }

        /* ============ SUBSCRIBE CTA ============ */
        .subscribe-cta-card {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(14, 59, 46, 0.5) 100%);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass-strong);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-cta-card::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .subscribe-cta-card::after {
            content: "";
            position: absolute;
            bottom: -70px;
            left: -30px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(52, 211, 153, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .subscribe-cta-inner {
            position: relative;
            z-index: 1;
        }

        .subscribe-cta-inner h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .subscribe-cta-inner p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 20px;
            max-width: 520px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: flex-end;
            max-width: 560px;
        }

        .subscribe-form .form-group {
            flex: 1;
            min-width: 160px;
        }

        .subscribe-form label {
            display: block;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .subscribe-form input[type="text"],
        .subscribe-form input[type="email"],
        .subscribe-form input[type="tel"] {
            width: 100%;
            padding: 10px 14px;
            border-radius: 8px;
            background: rgba(11, 18, 32, 0.6);
            border: 1px solid var(--border-glass);
            color: var(--text-primary);
            font-size: 14px;
            transition: var(--transition-base);
            outline: none;
        }

        .subscribe-form input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

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

        .btn-subscribe {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 11px 24px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan), var(--green));
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow-cyan);
            white-space: nowrap;
        }

        .btn-subscribe:hover {
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-2px);
        }

        .btn-subscribe i {
            font-size: 12px;
        }

        .form-agreement {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 12px;
        }

        .form-agreement input[type="checkbox"] {
            accent-color: var(--cyan);
            width: 14px;
            height: 14px;
            cursor: pointer;
        }

        @media (max-width: 640px) {
            .subscribe-cta-card {
                padding: 24px 18px;
            }

            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-form .form-group {
                min-width: 100%;
            }

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

        /* ============ FAQ ACCORDION ============ */
        .faq-accordion {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-accordion .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            background: transparent;
        }

        .faq-accordion .accordion-item {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-accordion .accordion-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glass-strong);
        }

        .faq-accordion .accordion-title {
            display: block;
            padding: 16px 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition-base);
            position: relative;
            padding-right: 44px;
        }

        .faq-accordion .accordion-title:hover {
            color: var(--cyan);
        }

        .faq-accordion .accordion-title::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            transition: var(--transition-base);
        }

        .faq-accordion .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--cyan);
        }

        .faq-accordion .accordion-content {
            display: none;
            padding: 0 18px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .faq-accordion .accordion-item.is-active .accordion-content {
            display: block;
        }

        @media (max-width: 640px) {
            .faq-accordion .accordion-title {
                font-size: 14px;
                padding: 14px 16px;
                padding-right: 40px;
            }

            .faq-accordion .accordion-content {
                font-size: 13px;
                padding: 0 16px 14px;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: rgba(11, 18, 32, 0.9);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 0;
            margin-top: 60px;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand {
            flex: 1 1 280px;
            max-width: 360px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon-small {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan), var(--green));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 15px;
            flex-shrink: 0;
        }

        .footer-logo .logo-text-small {
            font-size: 18px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }

        .footer-col {
            flex: 1 1 140px;
            max-width: 180px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

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

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

        .footer-bottom {
            padding: 18px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 20px;
            font-size: 12px;
            color: var(--text-faint);
        }

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

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

        .footer-meta-links a {
            font-size: 12px;
            color: var(--text-faint);
            transition: var(--transition-base);
        }

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

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 32px;
                margin-top: 40px;
            }

            .footer-inner {
                gap: 24px;
            }

            .footer-brand {
                flex: 1 1 100%;
                max-width: 100%;
            }

            .footer-col {
                flex: 1 1 40%;
                max-width: 50%;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .footer-meta-links {
                margin-left: 0;
            }
        }

        /* ============ UTILITIES ============ */
        .text-glow-cyan {
            text-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

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

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

            html {
                scroll-behavior: auto;
            }
        }