/* roulang page: index */
:root {
            --bg-primary: #0A1A2F;
            --bg-secondary: #0D1B3A;
            --bg-deep: #060F1D;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --text-primary: #F0F4FF;
            --text-secondary: #A0B0CC;
            --text-muted: #6B7C99;
            --accent-blue: #00D4FF;
            --accent-green: #00F5D4;
            --accent-purple: #7C6FFF;
            --accent-orange: #FF8A3C;
            --border-light: rgba(255, 255, 255, 0.10);
            --border-strong: rgba(255, 255, 255, 0.20);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.48);
            --glow-blue: 0 0 30px rgba(0, 212, 255, 0.30);
            --glow-green: 0 0 28px rgba(0, 245, 212, 0.25);
            --glow-purple: 0 0 30px rgba(124, 111, 255, 0.28);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image: radial-gradient(ellipse at 20% 0%, #0D1B3A 0%, #0A1A2F 55%, #060F1D 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-blue);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 15, 29, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(6, 15, 29, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo:hover {
            opacity: 0.85;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #060F1D;
            letter-spacing: 0;
            box-shadow: var(--glow-blue);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .main-nav a.active {
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition-med);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            color: #060F1D;
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.30);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.55);
            transform: translateY(-2px);
            color: #060F1D;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.30);
        }

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

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

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-block {
            width: 100%;
            display: flex;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 8px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }

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

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: all var(--transition-med);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 15, 29, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            z-index: 999;
            padding: 24px 32px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu a {
            display: block;
            padding: 16px 18px;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--accent-blue);
        }

        .mobile-menu a.active {
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-blue);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 0;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            filter: brightness(0.55) saturate(0.9);
            opacity: 0.6;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1;
            background: linear-gradient(180deg, rgba(6, 15, 29, 0.65) 0%, rgba(6, 15, 29, 0.82) 55%, rgba(6, 15, 29, 0.95) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            padding: 16px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(0, 245, 212, 0.10);
            border: 1px solid rgba(0, 245, 212, 0.25);
            border-radius: 100px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 12px rgba(0, 245, 212, 0.7);
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                transform: scale(1);
                opacity: 1;
            }
            50% {
                transform: scale(1.5);
                opacity: 0.6;
            }
        }

        .hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

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

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

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

        .hero-stat strong {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-blue);
            letter-spacing: -0.5px;
        }

        .hero-stat span {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* Hero Countdown Panel */
        .hero-countdown-card {
            background: rgba(13, 27, 58, 0.72);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

        .countdown-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .countdown-header .live-tag {
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
            background: #E53935;
            border-radius: 4px;
            letter-spacing: 1px;
        }

        .countdown-header h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .countdown-match {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            padding: 16px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .countdown-team {
            text-align: center;
            flex: 1;
        }

        .countdown-team .team-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .countdown-team .team-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .countdown-vs {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent-orange);
            padding: 0 4px;
        }

        .countdown-timer {
            display: flex;
            gap: 12px;
            justify-content: center;
            margin-bottom: 24px;
        }

        .timer-block {
            text-align: center;
            min-width: 62px;
        }

        .timer-block .timer-num {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .timer-block .timer-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

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

        .subscribe-form input:focus {
            border-color: var(--accent-blue);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
        }

        /* ===== Sections ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }

        .section-alt {
            background: rgba(13, 27, 58, 0.45);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            letter-spacing: 1px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 680px;
        }

        /* ===== Glass Cards Grid ===== */
        .glass-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .glass-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

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

        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            transition: all var(--transition-med);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }

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

        .glass-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 245, 212, 0.12));
            border: 1px solid rgba(0, 212, 255, 0.25);
        }

        .glass-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .glass-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ===== Feature Grid (specific styling for feature cards) ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .feature-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: all var(--transition-med);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
        }

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

        .feature-card .f-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
            background: rgba(0, 212, 255, 0.10);
            border: 1px solid rgba(0, 212, 255, 0.20);
        }

        .feature-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

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

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

        .scenario-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            transition: all var(--transition-med);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
            position: relative;
            overflow: hidden;
        }

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

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

        .scenario-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .scenario-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        /* ===== Demo / Screenshot ===== */
        .demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

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

        .demo-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
            object-fit: cover;
        }

        .demo-content h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .demo-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 20px;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
            padding: 36px 28px;
            background: rgba(13, 27, 58, 0.55);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

        .stats-bar .stat-item strong {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: var(--accent-blue);
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .stats-bar .stat-item span {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
            display: block;
        }

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

        .case-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition-med);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
        }

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

        .case-card .case-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 14px;
            aspect-ratio: 16/9;
            background: rgba(255, 255, 255, 0.04);
        }

        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .case-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .case-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Pricing ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-med);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
            position: relative;
        }

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

        .pricing-card.featured {
            border-color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.06);
            box-shadow: var(--glow-blue);
        }

        .pricing-card .plan-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .pricing-card .plan-price {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .pricing-card .plan-price span {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0;
        }

        .pricing-card .plan-period {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .pricing-card ul {
            list-style: none;
            margin-bottom: 20px;
            flex: 1;
        }

        .pricing-card ul li {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pricing-card ul li::before {
            content: '✓';
            color: var(--accent-green);
            font-weight: 700;
            font-size: 14px;
        }

        .badge-recommended {
            position: absolute;
            top: -12px;
            right: 20px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            color: #060F1D;
            border-radius: 100px;
            letter-spacing: 0.5px;
            box-shadow: var(--glow-blue);
        }

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

        .testimonial-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: all var(--transition-med);
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
        }

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

        .testimonial-card .t-stars {
            font-size: 14px;
            color: #FFC107;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

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

        .testimonial-card .t-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-card .t-author span {
            font-weight: 400;
            color: var(--text-muted);
            font-size: 12px;
        }

        /* ===== Brand Story ===== */
        .brand-story {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
            padding: 48px 40px;
            background: rgba(13, 27, 58, 0.6);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
        }

        .brand-story .bs-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-strong);
        }

        .brand-story .bs-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .brand-story h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 18px;
            line-height: 1.4;
        }

        .brand-story p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        /* ===== News Grid ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-med);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

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

        .news-card .news-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

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

        .news-card .news-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 100px;
            background: rgba(0, 212, 255, 0.10);
            color: var(--accent-blue);
            margin-bottom: 10px;
        }

        .news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
        }

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

        /* ===== Hot Matches Scroll ===== */
        .hot-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }

        .hot-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .hot-scroll::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 10px;
        }

        .hot-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .hot-match-card {
            flex: 0 0 280px;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            scroll-snap-align: start;
            transition: all var(--transition-med);
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
        }

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

        .hot-match-card .hm-league {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            margin-bottom: 12px;
            text-align: center;
        }

        .hot-match-card .hm-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 12px;
        }

        .hot-match-card .hm-team {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            text-align: center;
            flex: 1;
        }

        .hot-match-card .hm-time {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: var(--border-strong);
            background: var(--bg-card-hover);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--accent-blue);
            transition: transform var(--transition-med);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            background: linear-gradient(145deg, rgba(0, 212, 255, 0.06), rgba(0, 245, 212, 0.04), rgba(6, 15, 29, 0.9));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
        }

        .cta-inner {
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
            padding: 40px 24px;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 28px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-strong);
            border-radius: 12px;
            color: var(--text-primary);
            font-size: 15px;
            transition: all var(--transition-fast);
        }

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

        .cta-form input:focus {
            border-color: var(--accent-blue);
            background: rgba(255, 255, 255, 0.10);
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.18);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #060F1D;
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

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

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

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

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

        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

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

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

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .glass-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta .btn-outline {
                display: none;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero {
                padding: 100px 0 60px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .brand-story {
                grid-template-columns: 1fr;
                padding: 28px 24px;
            }
            .demo-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .container {
                padding: 0 20px;
            }
        }

        @media (max-width: 767px) {
            .hero-stats {
                gap: 20px;
            }
            .hero-stat strong {
                font-size: 22px;
            }
            .glass-grid,
            .glass-grid.cols-4 {
                grid-template-columns: 1fr;
            }
            .glass-grid.cols-2 {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .hot-match-card {
                flex: 0 0 240px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .section-header h2 {
                font-size: 23px;
            }
            .subscribe-form input,
            .cta-form input {
                min-width: 100%;
            }
        }

        @media (max-width: 519px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .countdown-timer {
                gap: 8px;
            }
            .timer-block {
                min-width: 52px;
            }
            .timer-block .timer-num {
                font-size: 26px;
                padding: 6px 8px;
            }
            .countdown-team .team-name {
                font-size: 14px;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A1A2F;
            --bg-secondary: #0D1B3A;
            --bg-deep: #060F1D;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --text-primary: #F0F4FF;
            --text-secondary: #A0B0CC;
            --text-muted: #6B7C99;
            --accent-blue: #00D4FF;
            --accent-green: #00F5D4;
            --accent-purple: #7C6FFF;
            --accent-orange: #FF8A3C;
            --border-light: rgba(255, 255, 255, 0.10);
            --border-strong: rgba(255, 255, 255, 0.20);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.48);
            --glow-blue: 0 0 30px rgba(0, 212, 255, 0.30);
            --glow-green: 0 0 28px rgba(0, 245, 212, 0.25);
            --glow-purple: 0 0 30px rgba(124, 111, 255, 0.28);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image: radial-gradient(ellipse at 20% 0%, #0D1B3A 0%, #0A1A2F 55%, #060F1D 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-blue);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 15, 29, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }
        .site-header.scrolled {
            background: rgba(6, 15, 29, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
            color: var(--text-primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #060F1D;
            letter-spacing: 0;
            box-shadow: var(--glow-blue);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .main-nav::-webkit-scrollbar {
            display: none;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition-med);
            white-space: nowrap;
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            color: #060F1D;
            box-shadow: var(--glow-blue);
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.55);
            transform: translateY(-2px);
            color: #060F1D;
        }
        .btn-outline {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
            color: var(--text-primary);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        /* ===== Hero Section ===== */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 15, 29, 0.65) 0%, rgba(10, 26, 47, 0.85) 60%, var(--bg-primary) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            z-index: 0;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-green);
            background: rgba(0, 245, 212, 0.10);
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid rgba(0, 245, 212, 0.25);
            width: fit-content;
        }
        .hero-left h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin: 0;
        }
        .hero-left h1 .gradient-text {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 500px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .featured-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .featured-card .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
            padding: 4px 12px;
            border-radius: 6px;
            margin-bottom: 12px;
        }
        .featured-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .featured-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .featured-card .matchup {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .featured-card .team {
            font-size: 16px;
            font-weight: 700;
        }
        .featured-card .vs {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-blue);
        }
        /* ===== Section Base ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-alt {
            background: rgba(255, 255, 255, 0.02);
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin: 0;
        }
        .section-header .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 400px;
            line-height: 1.7;
        }
        /* ===== Event Cards Grid ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .event-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .event-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .event-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .event-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .tag {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 6px;
            letter-spacing: 0.3px;
        }
        .tag-blue {
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-blue);
        }
        .tag-green {
            background: rgba(0, 245, 212, 0.12);
            color: var(--accent-green);
        }
        .tag-orange {
            background: rgba(255, 138, 60, 0.12);
            color: var(--accent-orange);
        }
        .tag-purple {
            background: rgba(124, 111, 255, 0.12);
            color: var(--accent-purple);
        }
        .event-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0;
        }
        .event-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
            flex: 1;
        }
        .event-card .event-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }
        /* ===== Schedule Timeline ===== */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .timeline-item {
            display: grid;
            grid-template-columns: 120px 1fr auto;
            gap: 20px;
            align-items: center;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition-fast);
        }
        .timeline-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
        }
        .timeline-date {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-green);
        }
        .timeline-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .timeline-info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .timeline-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            padding: 4px 12px;
            border-radius: 6px;
            white-space: nowrap;
        }
        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-med);
        }
        .stat-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 6px;
        }
        .stat-number.blue {
            color: var(--accent-blue);
            text-shadow: 0 0 24px rgba(0, 212, 255, 0.35);
        }
        .stat-number.green {
            color: var(--accent-green);
            text-shadow: 0 0 24px rgba(0, 245, 212, 0.30);
        }
        .stat-number.purple {
            color: var(--accent-purple);
            text-shadow: 0 0 24px rgba(124, 111, 255, 0.30);
        }
        .stat-number.orange {
            color: var(--accent-orange);
            text-shadow: 0 0 24px rgba(255, 138, 60, 0.30);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }
        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(0, 245, 212, 0.06));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            font-size: 15px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-form input:focus {
            border-color: var(--accent-blue);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-light);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .footer-col ul li a:hover {
            color: var(--accent-blue);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 12px;
            margin-left: auto;
        }
        .footer-links a {
            font-size: 12px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-blue);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-left h1 {
                font-size: 38px;
            }
            .events-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 20px;
            }
            .header-inner {
                height: 60px;
                gap: 12px;
            }
            .logo {
                font-size: 20px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 12px;
                border-radius: 8px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 14px;
            }
            .nav-cta .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .hero-section {
                padding-top: 100px;
                padding-bottom: 56px;
                min-height: auto;
            }
            .hero-left h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .events-grid {
                grid-template-columns: 1fr;
            }
            .timeline-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 14px 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 28px;
            }
            .cta-box {
                padding: 36px 20px;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links {
                margin-left: 0;
            }
        }
        @media (max-width: 520px) {
            .hero-left h1 {
                font-size: 25px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .nav-cta {
                display: none;
            }
        }
        @media (min-width: 521px) and (max-width: 768px) {
            .main-nav {
                overflow-x: auto;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A1A2F;
            --bg-secondary: #0D1B3A;
            --bg-deep: #060F1D;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --text-primary: #F0F4FF;
            --text-secondary: #A0B0CC;
            --text-muted: #6B7C99;
            --accent-blue: #00D4FF;
            --accent-green: #00F5D4;
            --accent-purple: #7C6FFF;
            --accent-orange: #FF8A3C;
            --border-light: rgba(255, 255, 255, 0.10);
            --border-strong: rgba(255, 255, 255, 0.20);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.48);
            --glow-blue: 0 0 30px rgba(0, 212, 255, 0.30);
            --glow-green: 0 0 28px rgba(0, 245, 212, 0.25);
            --glow-purple: 0 0 30px rgba(124, 111, 255, 0.28);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image: radial-gradient(ellipse at 20% 0%, #0D1B3A 0%, #0A1A2F 55%, #060F1D 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--accent-blue);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 15, 29, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }

        .site-header.scrolled {
            background: rgba(6, 15, 29, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo:hover {
            opacity: 0.85;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #060F1D;
            letter-spacing: 0;
            box-shadow: var(--glow-blue);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .main-nav a.active {
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition-med);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            color: #060F1D;
            box-shadow: var(--glow-blue);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 44px rgba(0, 212, 255, 0.55);
            transform: translateY(-2px);
            color: #060F1D;
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            border: 1px solid var(--border-strong);
            backdrop-filter: blur(8px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-blue);
            color: var(--accent-blue);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        /* ===== Mobile Navigation Toggle ===== */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Main ===== */
        main {
            padding-top: 72px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        section:nth-child(even) {
            background: rgba(255, 255, 255, 0.02);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent-blue);
            margin-bottom: 12px;
        }

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

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, rgba(0, 245, 212, 0.04) 50%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .category-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 580px;
        }

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

        .quick-entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .quick-entry-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-med);
            cursor: default;
        }

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

        .quick-entry-card .qe-icon {
            font-size: 28px;
            margin-bottom: 10px;
            display: block;
        }

        .quick-entry-card .qe-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .quick-entry-card .qe-sub {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .stat-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-med);
        }

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

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-blue);
            line-height: 1.2;
            margin-bottom: 8px;
        }

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

        /* ===== Data Cards List ===== */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .data-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
        }

        .data-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .data-card-img {
            height: 180px;
            overflow: hidden;
            border-radius: 0;
        }

        .data-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

        .data-card-body {
            padding: 22px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .data-card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.12);
            border-radius: 20px;
            padding: 4px 12px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .data-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
            line-height: 1.4;
        }

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

        .data-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== Tags Cloud ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-pill {
            display: inline-block;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 30px;
            cursor: default;
            transition: all var(--transition-fast);
        }

        .tag-pill:hover {
            color: var(--accent-blue);
            border-color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            transform: translateY(-2px);
        }

        /* ===== Team Ranking ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition-med);
        }

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

        .rank-number {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-blue);
            width: 36px;
            text-align: center;
            flex-shrink: 0;
        }

        .rank-name {
            flex: 1;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .rank-stats {
            display: flex;
            gap: 20px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .rank-stats span {
            white-space: nowrap;
        }

        /* ===== Player Stats ===== */
        .player-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            max-width: 900px;
        }

        .player-card {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 22px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-med);
        }

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

        .player-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #060F1D;
            flex-shrink: 0;
        }

        .player-info {
            flex: 1;
        }

        .player-info .player-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .player-info .player-stats {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-cta {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.10), rgba(0, 245, 212, 0.06));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
            border-radius: 50%;
            pointer-events: none;
        }

        .subscribe-cta h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            position: relative;
            z-index: 1;
        }

        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            font-size: 15px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

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

        .subscribe-form input:focus {
            border-color: var(--accent-blue);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.20);
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-light);
            padding: 56px 0 28px;
            position: relative;
            z-index: 1;
        }

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

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

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

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            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: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

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

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

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

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

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

            .main-nav a {
                padding: 8px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .header-inner {
                height: 64px;
            }

            main {
                padding-top: 64px;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(6, 15, 29, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                z-index: 999;
            }

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

            .main-nav a {
                display: block;
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: 8px;
            }

            .nav-toggle {
                display: flex;
            }

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

            section {
                padding: 56px 0;
            }

            .category-hero {
                padding: 70px 0 56px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero .hero-desc {
                font-size: 15px;
            }

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

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

            .stat-number {
                font-size: 28px;
            }

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

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

            .subscribe-cta {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }

            .subscribe-cta h2 {
                font-size: 24px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .subscribe-form .btn {
                width: 100%;
            }

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

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

            .footer-links {
                margin-left: 0;
                flex-wrap: wrap;
            }

            .section-title {
                font-size: 26px;
            }
        }

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

            .category-hero h1 {
                font-size: 22px;
            }

            .quick-entry-grid {
                grid-template-columns: 1fr;
            }

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

            .ranking-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 14px 16px;
            }

            .rank-stats {
                gap: 10px;
                font-size: 12px;
                flex-wrap: wrap;
            }

            .player-card {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }

            .section-title {
                font-size: 22px;
            }
        }

/* roulang page: category4 */
:root {
  --bg-primary: #0A1A2F;
  --bg-secondary: #0D1B3A;
  --bg-deep: #060F1D;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --text-primary: #F0F4FF;
  --text-secondary: #A0B0CC;
  --text-muted: #6B7C99;
  --accent-blue: #00D4FF;
  --accent-green: #00F5D4;
  --accent-purple: #7C6FFF;
  --accent-orange: #FF8A3C;
  --border-light: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.48);
  --glow-blue: 0 0 30px rgba(0, 212, 255, 0.30);
  --glow-green: 0 0 28px rgba(0, 245, 212, 0.25);
  --glow-purple: 0 0 30px rgba(124, 111, 255, 0.28);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: radial-gradient(ellipse at 20% 0%, #0D1B3A 0%, #0A1A2F 55%, #060F1D 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-blue);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

button {
  cursor: pointer;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6, 15, 29, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition-med), box-shadow var(--transition-med);
}

.site-header.scrolled {
  background: rgba(6, 15, 29, 0.92);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
  color: var(--text-primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #060F1D;
  letter-spacing: 0;
  box-shadow: var(--glow-blue);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.main-nav a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.main-nav a.active {
  color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.10);
  font-weight: 600;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  transition: all var(--transition-med);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
  color: #060F1D;
  box-shadow: var(--glow-blue);
  border: none;
}

.btn-primary:hover {
  box-shadow: var(--glow-green);
  transform: translateY(-2px);
  color: #060F1D;
}

.btn-outline {
  border-color: var(--border-strong);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.08);
  transform: translateY(-2px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.04);
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Category Hero */
.category-hero {
  padding: 120px 0 56px;
  position: relative;
  overflow: hidden;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -160px;
  right: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -140px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(124, 111, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.category-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 48px;
  align-items: center;
}

.category-hero h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  background: linear-gradient(135deg, #F0F4FF 0%, #A0B0CC 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.category-hero .hero-subtitle {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stat .stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.5px;
}

.hero-stat .stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  min-height: 280px;
  background: var(--bg-card);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  filter: brightness(0.8);
}

.hero-visual .overlay-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(6, 15, 29, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

/* Section Base */
.section {
  padding: 64px 0;
}

.section-header {
  margin-bottom: 40px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.section-link {
  font-size: 15px;
  color: var(--accent-blue);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

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

/* News Cards Grid */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.news-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}

.news-card-image {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: 0;
  transition: transform var(--transition-med);
}

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

.news-card-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

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

.news-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
  letter-spacing: 0.3px;
  background: rgba(0, 212, 255, 0.10);
  color: var(--accent-blue);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.news-tag.green {
  background: rgba(0, 245, 212, 0.10);
  color: var(--accent-green);
  border-color: rgba(0, 245, 212, 0.2);
}

.news-tag.purple {
  background: rgba(124, 111, 255, 0.10);
  color: var(--accent-purple);
  border-color: rgba(124, 111, 255, 0.25);
}

.news-tag.orange {
  background: rgba(255, 138, 60, 0.10);
  color: var(--accent-orange);
  border-color: rgba(255, 138, 60, 0.25);
}

.news-card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  letter-spacing: 0.2px;
}

.news-card-title a:hover {
  color: var(--accent-blue);
}

.news-card-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

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

.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-med);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.topic-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: #060F1D;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
  box-shadow: var(--glow-blue);
}

.topic-icon.purple {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
  box-shadow: var(--glow-purple);
  color: #F0F4FF;
}

.topic-icon.orange {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-green));
  box-shadow: var(--glow-green);
  color: #060F1D;
}

.topic-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-primary);
}

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

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

.tag-cloud a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.tag-cloud a:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.08);
  box-shadow: var(--glow-blue);
}

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

.stat-block {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-med);
}

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

.stat-block .stat-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-block .stat-name {
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

/* Subscribe CTA */
.subscribe-box {
  background: linear-gradient(135deg, rgba(13, 27, 58, 0.9) 0%, rgba(6, 15, 29, 0.95) 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 48px 56px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.subscribe-box::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.subscribe-box h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.subscribe-box p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.subscribe-form input {
  flex: 1;
  min-width: 220px;
  padding: 12px 18px;
  font-size: 15px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

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

.subscribe-form input:focus {
  border-color: var(--accent-blue);
  background: rgba(0, 212, 255, 0.04);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

/* Footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-light);
  padding: 56px 0 28px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

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

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

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

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

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

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

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

/* Responsive */
@media (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .category-hero h1 {
    font-size: 36px;
  }
  .subscribe-box {
    grid-template-columns: 1fr;
    padding: 36px 28px;
    gap: 24px;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .header-inner {
    height: 60px;
    gap: 16px;
  }
  .logo {
    font-size: 20px;
  }
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 15px;
    border-radius: 8px;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(6, 15, 29, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 20px;
    gap: 4px;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 6px;
  }
  .hamburger {
    display: flex;
  }
  .nav-cta .btn {
    display: none;
  }
  .category-hero {
    padding: 96px 0 40px;
  }
  .category-hero h1 {
    font-size: 28px;
    line-height: 1.4;
  }
  .category-hero .hero-subtitle {
    font-size: 16px;
  }
  .hero-stats {
    gap: 20px;
  }
  .hero-stat .stat-number {
    font-size: 22px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-block {
    padding: 20px 16px;
  }
  .stat-block .stat-value {
    font-size: 26px;
  }
  .section {
    padding: 40px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .subscribe-box {
    padding: 28px 20px;
    border-radius: var(--radius-lg);
  }
  .subscribe-box h2 {
    font-size: 22px;
  }
  .subscribe-form {
    flex-direction: column;
    gap: 12px;
  }
  .subscribe-form input {
    width: 100%;
    min-width: auto;
  }
  .subscribe-form .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-brand p {
    max-width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .category-hero h1 {
    font-size: 24px;
  }
  .hero-stats {
    gap: 16px;
    flex-wrap: wrap;
  }
  .stats-strip {
    grid-template-columns: 1fr 1fr;
  }
  .section-title {
    font-size: 21px;
  }
  .news-card-body {
    padding: 16px 16px 20px;
  }
  .topic-card {
    padding: 20px;
  }
  .subscribe-box {
    padding: 22px 16px;
  }
}

/* roulang page: category3 */
:root {
            --bg-primary: #0A1A2F;
            --bg-secondary: #0D1B3A;
            --bg-deep: #060F1D;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --text-primary: #F0F4FF;
            --text-secondary: #A0B0CC;
            --text-muted: #6B7C99;
            --accent-blue: #00D4FF;
            --accent-green: #00F5D4;
            --accent-purple: #7C6FFF;
            --accent-orange: #FF8A3C;
            --border-light: rgba(255, 255, 255, 0.10);
            --border-strong: rgba(255, 255, 255, 0.20);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.48);
            --glow-blue: 0 0 30px rgba(0, 212, 255, 0.30);
            --glow-green: 0 0 28px rgba(0, 245, 212, 0.25);
            --glow-purple: 0 0 30px rgba(124, 111, 255, 0.28);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image: radial-gradient(ellipse at 20% 0%, #0D1B3A 0%, #0A1A2F 55%, #060F1D 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 72px;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-blue);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(6, 15, 29, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-med), box-shadow var(--transition-med);
        }
        .site-header.scrolled {
            background: rgba(6, 15, 29, 0.92);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
            color: var(--text-primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #060F1D;
            letter-spacing: 0;
            box-shadow: var(--glow-blue);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .main-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.10);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
            color: #060F1D;
            box-shadow: var(--glow-blue);
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.5), 0 4px 12px rgba(0, 0, 0, 0.3);
            transform: translateY(-2px);
            color: #060F1D;
        }
        .btn-outline-light {
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .btn-outline-light:hover {
            border-color: var(--accent-blue);
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.08);
            transform: translateY(-2px);
        }
        .navbar-toggler {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .navbar-toggler span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* ===== Section common ===== */
        section {
            padding: 80px 0;
            position: relative;
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-blue);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
        }

        /* ===== Hero (社区风格) ===== */
        .community-hero {
            padding: 64px 0 40px;
            background-image: linear-gradient(180deg, rgba(6, 15, 29, 0.6) 0%, rgba(13, 27, 58, 0.4) 60%, rgba(10, 26, 47, 0.95) 100%);
            position: relative;
            overflow: hidden;
        }
        .community-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/00c72a4835070bdf.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .community-hero .container {
            position: relative;
            z-index: 1;
        }
        .community-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .community-hero .lead {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 28px;
        }
        .hero-search-wrap {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .hero-search-wrap input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 12px;
            color: var(--text-primary);
            font-size: 15px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .hero-search-wrap input::placeholder {
            color: var(--text-muted);
        }
        .hero-search-wrap input:focus {
            border-color: var(--accent-blue);
            box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }
        .hero-tag {
            padding: 6px 14px;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: 50px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .hero-tag:hover {
            color: var(--accent-blue);
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(0, 212, 255, 0.08);
        }

        /* ===== Stats ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all var(--transition-med);
        }
        .stat-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-blue);
            letter-spacing: 1px;
            margin-bottom: 4px;
        }
        .stat-number.green {
            color: var(--accent-green);
        }
        .stat-number.purple {
            color: var(--accent-purple);
        }
        .stat-number.orange {
            color: var(--accent-orange);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== Discussion cards ===== */
        .discussion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 20px;
            margin-top: 32px;
        }
        .discussion-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-med);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            flex-direction: column;
        }
        .discussion-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .discussion-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .discussion-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .discussion-card:hover .discussion-card-img img {
            transform: scale(1.05);
        }
        .discussion-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .discussion-category {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
            width: fit-content;
        }
        .discussion-category.football {
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-blue);
            border: 1px solid rgba(0, 212, 255, 0.3);
        }
        .discussion-category.basketball {
            background: rgba(255, 138, 60, 0.12);
            color: var(--accent-orange);
            border: 1px solid rgba(255, 138, 60, 0.3);
        }
        .discussion-category.tennis {
            background: rgba(0, 245, 212, 0.12);
            color: var(--accent-green);
            border: 1px solid rgba(0, 245, 212, 0.3);
        }
        .discussion-category.esports {
            background: rgba(124, 111, 255, 0.12);
            color: var(--accent-purple);
            border: 1px solid rgba(124, 111, 255, 0.3);
        }
        .discussion-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .discussion-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .discussion-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .discussion-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== Circle cards ===== */
        .circle-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 16px;
            margin-top: 32px;
        }
        .circle-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: all var(--transition-med);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .circle-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .circle-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
            font-weight: 700;
        }
        .circle-icon.football {
            background: rgba(0, 212, 255, 0.15);
            color: var(--accent-blue);
        }
        .circle-icon.basketball {
            background: rgba(255, 138, 60, 0.15);
            color: var(--accent-orange);
        }
        .circle-icon.tennis {
            background: rgba(0, 245, 212, 0.15);
            color: var(--accent-green);
        }
        .circle-icon.esports {
            background: rgba(124, 111, 255, 0.15);
            color: var(--accent-purple);
        }
        .circle-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .circle-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .circle-members {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }

        /* ===== Tag cloud ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            justify-content: center;
        }
        .tag-cloud .cloud-tag {
            padding: 8px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: 50px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-cloud .cloud-tag:hover {
            color: var(--accent-blue);
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(0, 212, 255, 0.08);
            transform: translateY(-2px);
        }
        .tag-cloud .cloud-tag.large {
            font-size: 17px;
            font-weight: 600;
            padding: 10px 22px;
            color: var(--text-primary);
        }
        .tag-cloud .cloud-tag.medium {
            font-size: 15px;
            padding: 8px 20px;
        }

        /* ===== Activity / Poll ===== */
        .activity-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            margin-top: 32px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all var(--transition-med);
        }
        .activity-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card);
        }
        .activity-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .activity-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .poll-options {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 4px;
        }
        .poll-option {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: 10px;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .poll-option:hover {
            border-color: rgba(0, 212, 255, 0.4);
            background: rgba(0, 212, 255, 0.06);
            color: var(--text-primary);
        }
        .poll-option .poll-dot {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            border: 2px solid var(--text-muted);
            flex-shrink: 0;
            position: relative;
            transition: all var(--transition-fast);
        }
        .poll-option.selected .poll-dot {
            border-color: var(--accent-blue);
            background: var(--accent-blue);
            box-shadow: 0 0 10px rgba(0, 212, 255, 0.4);
        }

        /* ===== FAQ ===== */
        .faq-list {
            margin-top: 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-med);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
            background: var(--bg-card-hover);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--accent-blue);
        }
        .faq-item summary .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 212, 255, 0.15);
            color: var(--accent-blue);
        }
        .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .join-cta {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(0, 245, 212, 0.05));
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .join-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .join-cta h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
        }
        .join-cta p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
        }
        .join-cta .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-light);
            padding: 56px 0 28px;
            position: relative;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            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: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-blue);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-blue);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .community-hero h1 {
                font-size: 34px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            body {
                padding-top: 64px;
                font-size: 15px;
            }
            .header-inner {
                height: 64px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(6, 15, 29, 0.95);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                align-items: stretch;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: 8px;
                text-align: left;
            }
            .navbar-toggler {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            section {
                padding: 56px 0;
            }
            .community-hero {
                padding: 48px 0 32px;
            }
            .community-hero h1 {
                font-size: 28px;
            }
            .community-hero .lead {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .discussion-grid {
                grid-template-columns: 1fr;
            }
            .circle-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-links {
                margin-left: 0;
            }
            .join-cta {
                padding: 32px 24px;
            }
            .join-cta h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 24px;
            }
            .circle-grid {
                grid-template-columns: 1fr;
            }
            .discussion-card-img {
                height: 150px;
            }
            .activity-card {
                padding: 20px;
            }
            .hero-search-wrap {
                flex-direction: column;
            }
            .hero-search-wrap input {
                min-width: auto;
                width: 100%;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

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