/* roulang page: index */
:root {
            --bg-primary: #06060d;
            --bg-secondary: #0d0d18;
            --bg-card: #13131f;
            --bg-card-hover: #1a1a2b;
            --bg-panel: #0f0f1a;
            --bg-nav: rgba(8, 8, 20, 0.92);
            --neon-cyan: #00e5ff;
            --neon-cyan-dim: rgba(0, 229, 255, 0.25);
            --neon-cyan-glow: rgba(0, 229, 255, 0.5);
            --neon-purple: #b847ea;
            --neon-purple-glow: rgba(184, 71, 234, 0.45);
            --neon-pink: #ff2d78;
            --neon-gold: #ffb830;
            --accent-orange: #ff6b35;
            --text-primary: #e8e8f2;
            --text-secondary: #a8a8c0;
            --text-muted: #6b6b82;
            --text-bright: #ffffff;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-card: rgba(255, 255, 255, 0.09);
            --border-glow: rgba(0, 229, 255, 0.3);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.45);
            --shadow-glow-cyan: 0 0 22px rgba(0, 229, 255, 0.3), 0 0 50px rgba(0, 229, 255, 0.1);
            --shadow-glow-purple: 0 0 22px rgba(184, 71, 234, 0.3), 0 0 50px rgba(184, 71, 234, 0.1);
            --shadow-elevated: 0 8px 32px rgba(0, 0, 0, 0.55);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

        *,
        *::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-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            font-size: 16px;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--neon-cyan);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--neon-cyan);
            margin-bottom: 0.6rem;
            position: relative;
        }

        .section-label::after {
            content: '';
            display: inline-block;
            width: 32px;
            height: 2px;
            background: var(--neon-cyan);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-bright);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }

        .text-center {
            text-align: center;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-nav);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-glow);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-bright);
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: text-shadow var(--transition-fast);
        }

        .nav-logo:hover {
            text-shadow: 0 0 18px var(--neon-cyan-glow);
            color: var(--neon-cyan);
        }

        .nav-logo .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--neon-cyan);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--neon-cyan-glow), 0 0 24px var(--neon-cyan-dim);
            animation: logoPulse 2.2s ease-in-out infinite;
        }

        @keyframes logoPulse {
            0%,
            100% {
                box-shadow: 0 0 10px var(--neon-cyan-glow), 0 0 24px var(--neon-cyan-dim);
            }
            50% {
                box-shadow: 0 0 20px var(--neon-cyan-glow), 0 0 40px rgba(0, 229, 255, 0.5);
            }
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-bright);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-links a.active {
            color: var(--neon-cyan);
            background: rgba(0, 229, 255, 0.08);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--neon-cyan);
            border-radius: 1px;
            box-shadow: 0 0 8px var(--neon-cyan-glow);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #06060d !important;
            background: var(--neon-cyan);
            box-shadow: 0 0 16px var(--neon-cyan-dim);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-cta-btn:hover {
            background: #00f0ff;
            box-shadow: 0 0 28px var(--neon-cyan-glow);
            transform: translateY(-1px);
            color: #06060d !important;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            padding: 8px;
            border-radius: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-bright);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 6, 13, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            padding: 24px;
        }

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

        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-bright);
            padding: 10px 24px;
            border-radius: 28px;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--neon-cyan);
            background: rgba(0, 229, 255, 0.08);
        }

        .mobile-menu .mobile-cta {
            background: var(--neon-cyan);
            color: #06060d !important;
            box-shadow: 0 0 20px var(--neon-cyan-dim);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 100px 24px 80px;
            background: var(--bg-primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            opacity: 0.35;
            mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
        }

        .hero-glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.3;
            z-index: 0;
            pointer-events: none;
        }

        .hero-glow-orb.orb-cyan {
            width: 380px;
            height: 380px;
            background: var(--neon-cyan);
            top: 15%;
            left: -8%;
            animation: orbFloat1 8s ease-in-out infinite;
        }

        .hero-glow-orb.orb-purple {
            width: 320px;
            height: 320px;
            background: var(--neon-purple);
            bottom: 10%;
            right: -6%;
            animation: orbFloat2 9s ease-in-out infinite;
        }

        @keyframes orbFloat1 {
            0%,
            100% {
                transform: translate(0, 0) scale(1);
            }
            33% {
                transform: translate(40px, -30px) scale(1.1);
            }
            66% {
                transform: translate(-20px, 20px) scale(0.9);
            }
        }

        @keyframes orbFloat2 {
            0%,
            100% {
                transform: translate(0, 0) scale(1);
            }
            33% {
                transform: translate(-35px, -25px) scale(1.15);
            }
            66% {
                transform: translate(25px, 30px) scale(0.85);
            }
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--neon-cyan);
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            margin-bottom: 1.6rem;
            animation: badgeGlow 3s ease-in-out infinite;
        }

        @keyframes badgeGlow {
            0%,
            100% {
                border-color: rgba(0, 229, 255, 0.2);
                box-shadow: 0 0 8px rgba(0, 229, 255, 0.1);
            }
            50% {
                border-color: rgba(0, 229, 255, 0.5);
                box-shadow: 0 0 20px rgba(0, 229, 255, 0.25);
            }
        }

        .hero-badge i {
            font-size: 0.75rem;
            animation: badgeDot 1.5s ease-in-out infinite;
        }

        @keyframes badgeDot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 900;
            color: var(--text-bright);
            line-height: 1.25;
            letter-spacing: 0.03em;
            margin-bottom: 1.2rem;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--neon-cyan), #00c4d6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 2.2rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
            text-align: center;
        }

        .btn-primary {
            background: var(--neon-cyan);
            color: #06060d;
            box-shadow: 0 0 22px var(--neon-cyan-dim);
        }
        .btn-primary:hover {
            background: #00f0ff;
            box-shadow: 0 0 36px var(--neon-cyan-glow);
            transform: translateY(-2px);
            color: #06060d;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-bright);
            border: 2px solid rgba(255, 255, 255, 0.2);
        }
        .btn-outline:hover {
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.2);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.08rem;
            border-radius: 30px;
        }

        /* ========== FEATURES ========== */
        .features-section {
            padding: 90px 24px;
            background: var(--bg-secondary);
            position: relative;
            z-index: 1;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--neon-cyan);
            border-radius: 0 0 3px 3px;
            opacity: 0;
            transition: all var(--transition-base);
            box-shadow: 0 0 14px var(--neon-cyan-glow);
        }

        .feature-card:hover {
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-elevated), 0 0 30px rgba(0, 229, 255, 0.08);
        }

        .feature-card:hover::before {
            opacity: 1;
            width: 70px;
        }

        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            font-size: 1.6rem;
            margin-bottom: 1.2rem;
            background: rgba(0, 229, 255, 0.08);
            color: var(--neon-cyan);
            transition: all var(--transition-base);
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.1);
        }

        .feature-card:hover .feature-icon {
            box-shadow: 0 0 24px var(--neon-cyan-dim);
            background: rgba(0, 229, 255, 0.14);
        }

        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-bright);
            margin-bottom: 0.5rem;
        }

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

        /* ========== TOURNAMENT BRACKET ========== */
        .bracket-section {
            padding: 90px 24px;
            background: var(--bg-primary);
            position: relative;
            z-index: 1;
        }

        .bracket-visual {
            max-width: 1000px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0;
        }

        .bracket-round {
            display: flex;
            flex-direction: column;
            gap: 28px;
            padding: 10px;
        }

        .bracket-match {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            min-width: 150px;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
        }

        .bracket-match:hover {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
            transform: translateY(-2px);
        }

        .bracket-match .team-name {
            font-weight: 700;
            color: var(--text-bright);
            font-size: 0.95rem;
        }

        .bracket-match .match-status {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 12px;
            letter-spacing: 0.04em;
            margin-top: 6px;
        }

        .status-live {
            background: rgba(255, 45, 120, 0.2);
            color: var(--neon-pink);
            animation: statusPulse 1.5s ease-in-out infinite;
        }

        .status-upcoming {
            background: rgba(255, 184, 48, 0.15);
            color: var(--neon-gold);
        }

        .status-done {
            background: rgba(0, 230, 118, 0.12);
            color: #00e676;
        }

        @keyframes statusPulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.55;
            }
        }

        .bracket-connector {
            display: flex;
            align-items: center;
            font-size: 2.5rem;
            color: var(--neon-cyan);
            padding: 0 8px;
            opacity: 0.7;
            font-weight: 300;
        }

        .bracket-champion {
            background: var(--bg-card);
            border: 2px solid var(--neon-gold);
            border-radius: var(--radius-lg);
            padding: 22px 28px;
            text-align: center;
            box-shadow: 0 0 30px rgba(255, 184, 48, 0.18);
            min-width: 160px;
        }

        .bracket-champion .crown-icon {
            font-size: 2rem;
            color: var(--neon-gold);
            margin-bottom: 6px;
        }

        .bracket-champion .team-name {
            font-weight: 800;
            color: var(--neon-gold);
            font-size: 1.1rem;
        }

        /* ========== NEWS / CMS ========== */
        .news-section {
            padding: 90px 24px;
            background: var(--bg-secondary);
            position: relative;
            z-index: 1;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

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

        .news-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-5px);
            box-shadow: var(--shadow-elevated), 0 0 24px rgba(0, 229, 255, 0.06);
        }

        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

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

        .news-card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--neon-cyan);
            margin-bottom: 0.6rem;
        }

        .news-card h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-bright);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            transition: color var(--transition-fast);
        }

        .news-card:hover h3 {
            color: var(--neon-cyan);
        }

        .news-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 0.8rem;
        }

        .news-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 50px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-card);
        }

        /* ========== STATS ========== */
        .stats-section {
            padding: 80px 24px;
            background: var(--bg-primary);
            position: relative;
            z-index: 1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1100px;
            margin: 0 auto;
            text-align: center;
        }

        .stat-item {
            padding: 30px 20px;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(180deg, var(--neon-cyan), #00b8d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            margin-bottom: 0.4rem;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        /* ========== GAMES SHOWCASE ========== */
        .games-section {
            padding: 90px 24px;
            background: var(--bg-secondary);
            position: relative;
            z-index: 1;
        }

        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .game-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            cursor: pointer;
            transition: all var(--transition-base);
            border: 1px solid var(--border-card);
            aspect-ratio: 16 / 10;
            min-height: 220px;
        }

        .game-card:hover {
            border-color: var(--border-glow);
            transform: translateY(-5px);
            box-shadow: var(--shadow-elevated), 0 0 28px rgba(0, 229, 255, 0.1);
        }

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

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

        .game-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 6, 13, 0.9) 20%, transparent 60%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
            pointer-events: none;
        }

        .game-card-overlay span {
            color: var(--text-bright);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 90px 24px;
            background: var(--bg-primary);
            position: relative;
            z-index: 1;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-bright);
            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::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--neon-cyan);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item[open] summary {
            color: var(--neon-cyan);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 100px 24px;
            background: var(--bg-secondary);
            position: relative;
            z-index: 1;
            overflow: hidden;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: 0.2;
            mask-image: radial-gradient(ellipse at center, black 35%, transparent 70%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 70%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-bright);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .cta-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #04040a;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 24px 28px;
            position: relative;
            z-index: 1;
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 30px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-bright);
            letter-spacing: 0.03em;
            margin-bottom: 0.8rem;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-bright);
            margin-bottom: 1rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            max-width: 1200px;
            margin: 30px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .bracket-visual {
                flex-direction: column;
                gap: 16px;
            }
            .bracket-connector {
                transform: rotate(90deg);
                font-size: 1.8rem;
            }
            .hero-title {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .games-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .cta-content h2 {
                font-size: 1.8rem;
            }
            .bracket-match {
                min-width: 120px;
                padding: 12px 14px;
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .bracket-match {
                min-width: 100px;
                padding: 10px 12px;
                font-size: 0.85rem;
            }
            .bracket-champion {
                min-width: 120px;
                padding: 16px 20px;
            }
            .nav-inner {
                padding: 0 16px;
                height: 56px;
            }
            .hero-section {
                padding: 80px 16px 60px;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #06060f;
            --bg-primary: #0a0a18;
            --bg-secondary: #0f0f22;
            --bg-card: #12122a;
            --bg-card-hover: #181835;
            --bg-elevated: #1a1a38;
            --text-primary: #e8e8f4;
            --text-secondary: #b8b8d0;
            --text-muted: #7a7a9e;
            --accent-neon: #00d4ff;
            --accent-neon-glow: rgba(0, 212, 255, 0.5);
            --accent-purple: #b347ea;
            --accent-purple-glow: rgba(179, 71, 234, 0.45);
            --accent-green: #00ff88;
            --accent-amber: #ffb347;
            --border-subtle: #1e1e3e;
            --border-card: #252545;
            --border-neon: rgba(0, 212, 255, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 32px rgba(0, 212, 255, 0.2);
            --shadow-purple: 0 0 28px rgba(179, 71, 234, 0.18);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 212, 255, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 30%, rgba(179, 71, 234, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 70%, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        a:hover {
            color: #5ce6ff;
            text-shadow: 0 0 12px rgba(0, 212, 255, 0.35);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            line-height: 1.3;
            color: var(--text-primary);
            font-weight: 700;
        }

        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 10, 24, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .nav-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 66px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            text-decoration: none;
            white-space: nowrap;
            transition: text-shadow var(--transition-fast);
        }

        .nav-logo:hover {
            color: #ffffff;
            text-shadow: 0 0 22px rgba(0, 212, 255, 0.6);
        }

        .logo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-neon);
            box-shadow: 0 0 16px var(--accent-neon-glow), 0 0 36px rgba(0, 212, 255, 0.35);
            flex-shrink: 0;
            animation: logoPulse 2.2s ease-in-out infinite;
        }

        @keyframes logoPulse {
            0%,
            100% {
                box-shadow: 0 0 16px var(--accent-neon-glow), 0 0 36px rgba(0, 212, 255, 0.35);
            }
            50% {
                box-shadow: 0 0 26px rgba(0, 212, 255, 0.7), 0 0 52px rgba(0, 212, 255, 0.5);
            }
        }

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

        .nav-links a {
            display: block;
            padding: 9px 18px;
            border-radius: 22px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-smooth);
            position: relative;
            letter-spacing: 0.01em;
        }

        .nav-links a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.05);
            text-shadow: none;
        }

        .nav-links a.active {
            color: #ffffff;
            background: rgba(0, 212, 255, 0.12);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.2);
            border: 1px solid var(--border-neon);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #000;
            background: var(--accent-neon);
            text-decoration: none;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
            white-space: nowrap;
            border: none;
        }

        .nav-cta-btn:hover {
            background: #33deff;
            color: #000;
            box-shadow: 0 0 34px rgba(0, 212, 255, 0.55);
            transform: translateY(-1px);
            text-shadow: none;
        }

        .nav-cta-btn i {
            font-size: 0.85rem;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 3px;
            transition: all var(--transition-smooth);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-wrap {
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-subtle);
            padding: 14px 0;
        }

        .breadcrumb-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .breadcrumb-inner a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .breadcrumb-inner a:hover {
            color: var(--accent-neon);
            text-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
        }

        .breadcrumb-sep {
            color: var(--border-card);
            font-size: 0.75rem;
        }

        .breadcrumb-current {
            color: var(--accent-neon);
            font-weight: 600;
            max-width: 380px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ MAIN LAYOUT ============ */
        .page-main {
            flex: 1;
            padding: 40px 0 60px;
        }

        .article-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ============ ARTICLE CARD ============ */
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-purple), var(--accent-green));
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 18px;
        }

        .article-category-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-neon);
            border: 1px solid rgba(0, 212, 255, 0.3);
            text-transform: uppercase;
        }

        .article-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-date i {
            font-size: 0.8rem;
        }

        .article-h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            color: #ffffff;
            margin-bottom: 24px;
            letter-spacing: 0.01em;
        }

        .article-featured-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 32px;
            border: 1px solid var(--border-card);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
        }

        .article-featured-img img {
            width: 100%;
            height: auto;
            display: block;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }

        .article-body h2 {
            font-size: 1.55rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: #ffffff;
            border-left: 3px solid var(--accent-neon);
            padding-left: 16px;
        }

        .article-body h3 {
            font-size: 1.3rem;
            margin-top: 1.6rem;
            margin-bottom: 0.8rem;
            color: #f0f0f8;
        }

        .article-body p {
            margin-bottom: 1.2rem;
            color: #d0d0e4;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
            color: #d0d0e4;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-purple);
            background: rgba(179, 71, 234, 0.06);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            color: #c8c8e0;
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            border: 1px solid var(--border-card);
        }

        .article-body a {
            color: var(--accent-neon);
            border-bottom: 1px dotted rgba(0, 212, 255, 0.4);
        }

        .article-body a:hover {
            border-bottom-color: var(--accent-neon);
            text-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
        }

        .article-body code {
            background: var(--bg-elevated);
            padding: 3px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.9em;
            color: var(--accent-green);
        }

        .article-body pre {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            padding: 20px;
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        /* ============ ARTICLE FOOTER ============ */
        .article-footer-actions {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-card);
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: 22px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--bg-elevated);
            border: 1px solid var(--border-card);
            text-decoration: none;
            transition: all var(--transition-smooth);
        }

        .btn-back:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-neon);
            color: #ffffff;
            text-shadow: none;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }

        .btn-back i {
            font-size: 0.8rem;
        }

        .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: 22px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #000;
            background: var(--accent-neon);
            border: none;
            text-decoration: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
        }

        .btn-home:hover {
            background: #33deff;
            color: #000;
            box-shadow: 0 0 28px rgba(0, 212, 255, 0.5);
            transform: translateY(-1px);
            text-shadow: none;
        }

        /* ============ NOT FOUND STATE ============ */
        .not-found-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .not-found-icon {
            font-size: 4rem;
            color: var(--accent-amber);
            margin-bottom: 20px;
            display: block;
            animation: floatIcon 3s ease-in-out infinite;
        }

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

        .not-found-card h2 {
            font-size: 1.6rem;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .not-found-card p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .not-found-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            max-width: 500px;
            margin: 0 auto 28px;
            border: 1px solid var(--border-card);
        }

        .not-found-img img {
            width: 100%;
            height: auto;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 0;
            margin-top: auto;
        }

        .footer-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px 36px;
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #ffffff;
            display: block;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-neon);
            text-shadow: 0 0 8px rgba(0, 212, 255, 0.25);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding: 18px 28px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
            max-width: 1280px;
            margin: 0 auto;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .article-card {
                padding: 32px 28px;
            }

            .article-h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(10, 10, 24, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 90px 28px 30px;
                gap: 6px;
                transition: right var(--transition-smooth);
                border-left: 1px solid var(--border-subtle);
                z-index: 999;
            }

            .nav-links.open {
                right: 0;
            }

            .nav-links a {
                font-size: 1.05rem;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
            }

            .nav-toggle {
                display: flex;
            }

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

            .nav-inner {
                padding: 0 18px;
                height: 58px;
            }

            .article-card {
                padding: 24px 18px;
                border-radius: var(--radius-md);
            }

            .article-h1 {
                font-size: 1.5rem;
            }

            .article-body {
                font-size: 0.98rem;
            }

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

            .breadcrumb-inner {
                padding: 0 18px;
                font-size: 0.8rem;
            }

            .page-main {
                padding: 24px 0 40px;
            }

            .article-container {
                padding: 0 14px;
            }

            .article-footer-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-back,
            .btn-home {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.1rem;
            }

            .logo-dot {
                width: 9px;
                height: 9px;
            }

            .article-h1 {
                font-size: 1.3rem;
            }

            .article-card {
                padding: 18px 14px;
                border-radius: var(--radius-sm);
            }

            .article-card::before {
                height: 2px;
            }

            .article-meta-row {
                gap: 8px;
            }

            .article-category-tag {
                font-size: 0.72rem;
                padding: 4px 10px;
            }

            .article-date {
                font-size: 0.78rem;
            }

            .not-found-card {
                padding: 36px 18px;
            }

            .not-found-icon {
                font-size: 3rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #06060d;
            --bg-panel: #0d0d1a;
            --bg-card: #111122;
            --bg-card-hover: #181835;
            --text-primary: #f0f0f5;
            --text-secondary: #b0b0c0;
            --text-muted: #707088;
            --accent-cyan: #00e5ff;
            --accent-cyan-glow: rgba(0, 229, 255, 0.45);
            --accent-purple: #a855f7;
            --accent-purple-glow: rgba(168, 85, 247, 0.4);
            --accent-pink: #f472b6;
            --accent-green: #34d399;
            --accent-orange: #fb923c;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(0, 229, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);
            --shadow-glow-cyan: 0 0 30px rgba(0, 229, 255, 0.25), 0 0 60px rgba(0, 229, 255, 0.08);
            --shadow-glow-purple: 0 0 30px rgba(168, 85, 247, 0.25), 0 0 60px rgba(168, 85, 247, 0.08);
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 0.5em;
            color: var(--text-primary);
        }

        h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.15rem, 2vw, 1.5rem);
        }
        p {
            margin: 0 0 1em;
            color: var(--text-secondary);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 80px 0;
        }
        .section-dark {
            background-color: var(--bg-panel);
        }
        .section-glow-top {
            border-top: 1px solid var(--border-glow);
        }
        .section-glow-bottom {
            border-bottom: 1px solid var(--border-glow);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 12px;
            padding: 4px 14px;
            border: 1px solid var(--accent-cyan-glow);
            border-radius: 20px;
            background: rgba(0, 229, 255, 0.06);
        }
        .section-title {
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 40px;
            text-align: center;
        }

        .text-center {
            text-align: center;
        }
        .text-gradient-cyan {
            background: linear-gradient(135deg, #00e5ff 0%, #60efff 50%, #a78bfa 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .text-gradient-purple {
            background: linear-gradient(135deg, #a855f7 0%, #c084fc 50%, #f472b6 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(6, 6, 13, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(6, 6, 13, 0.96);
            border-bottom-color: var(--border-glow);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            font-family: var(--font-heading);
        }
        .nav-logo:hover {
            color: var(--accent-cyan);
        }
        .logo-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 14px var(--accent-cyan-glow), 0 0 28px var(--accent-cyan-glow);
            animation: logoPulse 2.2s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%,
            100% {
                box-shadow: 0 0 14px var(--accent-cyan-glow), 0 0 28px var(--accent-cyan-glow);
            }
            50% {
                box-shadow: 0 0 22px var(--accent-cyan-glow), 0 0 42px rgba(0, 229, 255, 0.55);
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            position: relative;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            padding: 8px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .nav-links a:hover {
            color: var(--text-primary);
        }
        .nav-links a.active {
            color: var(--accent-cyan);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 1px;
            box-shadow: 0 0 10px var(--accent-cyan-glow), 0 0 20px var(--accent-cyan-glow);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, var(--accent-purple) 0%, #c084fc 100%);
            color: #fff;
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(168, 85, 247, 0.35);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 26px rgba(168, 85, 247, 0.55);
            color: #fff;
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(168, 85, 247, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 6px;
            cursor: pointer;
            z-index: 1001;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO ========== */
        .category-hero {
            position: relative;
            padding: 100px 0 90px;
            background: var(--bg-deep);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .category-hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            filter: brightness(0.6) saturate(1.3);
        }
        .category-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 6, 13, 0.55) 0%, rgba(6, 6, 13, 0.9) 85%, rgba(6, 6, 13, 1) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        .hero-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            border: 1px solid var(--border-glow);
            background: rgba(0, 229, 255, 0.07);
            color: var(--accent-cyan);
        }
        .hero-badge.hot {
            background: rgba(244, 114, 182, 0.12);
            border-color: rgba(244, 114, 182, 0.35);
            color: var(--accent-pink);
            animation: badgePulse 2.5s ease-in-out infinite;
        }
        @keyframes badgePulse {
            0%,
            100% {
                box-shadow: 0 0 6px rgba(244, 114, 182, 0.2);
            }
            50% {
                box-shadow: 0 0 18px rgba(244, 114, 182, 0.45);
            }
        }
        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 4rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
            line-height: 1.15;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 26px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            border: none;
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, #00e5ff 0%, #00b8d4 100%);
            color: #06060d;
            box-shadow: 0 4px 22px rgba(0, 229, 255, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(0, 229, 255, 0.55);
            color: #06060d;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #0a0a18;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            background: rgba(0, 0, 0, 0.7);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 229, 255, 0.3);
            backdrop-filter: blur(6px);
        }
        .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .card-meta i {
            color: var(--accent-cyan);
            font-size: 0.75rem;
        }

        /* ========== STATS ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            text-align: center;
        }
        .stat-item {
            min-width: 140px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #00e5ff 0%, #a855f7 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* ========== PROCESS / TIMELINE ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: process;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            transition: all var(--transition-smooth);
            counter-increment: process;
        }
        .process-step:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-purple);
            transform: translateY(-3px);
        }
        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-purple) 0%, #c084fc 100%);
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            margin-bottom: 16px;
            box-shadow: 0 0 20px rgba(168, 85, 247, 0.35);
        }
        .process-step h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-row {
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .feature-row.reverse {
            flex-direction: row-reverse;
        }
        .feature-text {
            flex: 1;
            min-width: 280px;
        }
        .feature-text h2 {
            margin-bottom: 16px;
        }
        .feature-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .feature-visual {
            flex: 1;
            min-width: 280px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }
        .feature-visual img {
            width: 100%;
            height: auto;
            display: block;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .feature-list li i {
            color: var(--accent-green);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-family: var(--font-body);
            letter-spacing: 0.01em;
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-cyan);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-panel);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 20px;
            box-shadow: var(--shadow-glow-cyan);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            position: relative;
            z-index: 1;
            margin-bottom: 12px;
        }
        .cta-section p {
            position: relative;
            z-index: 1;
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-inner {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
            display: block;
            margin-bottom: 10px;
            font-family: var(--font-heading);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            max-width: 1320px;
            margin: 30px auto 0;
            padding: 20px 20px 0;
            border-top: 1px solid var(--border-subtle);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .stats-row {
                gap: 24px;
            }
            .stat-number {
                font-size: 2.4rem;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(6, 6, 13, 0.97);
                backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 0;
                padding: 16px 0;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                padding: 14px 24px;
                width: 100%;
                font-size: 1rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(0, 229, 255, 0.06);
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-cta-btn.mobile-show {
                display: inline-flex;
                margin: 10px 24px;
                width: calc(100% - 48px);
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .card-grid-3,
            .card-grid-4,
            .card-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-row {
                flex-direction: column;
                gap: 30px;
            }
            .feature-row.reverse {
                flex-direction: column;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-row {
                gap: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-section {
                margin: 0 12px;
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero {
                padding: 60px 0 50px;
                min-height: auto;
            }
            .section {
                padding: 48px 0;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
            .hero-badge-row {
                gap: 6px;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .card-body {
                padding: 16px 16px 20px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }
        }