/* roulang page: index */
:root {
            --primary: #00c8ff;
            --primary-dark: #009dcf;
            --primary-light: #5cdbff;
            --secondary: #8b5cf6;
            --secondary-dark: #6d3fd4;
            --accent: #f59e0b;
            --accent-dark: #d4890a;
            --bg-deep: #06060f;
            --bg-dark: #0c0c1d;
            --bg-card: #12122a;
            --bg-card-hover: #181836;
            --bg-nav: rgba(8, 8, 24, 0.88);
            --text-primary: #f0f0f5;
            --text-secondary: #c0c0d0;
            --text-muted: #8888a0;
            --text-on-dark: #e8e8f0;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-card: rgba(255, 255, 255, 0.1);
            --border-glow: rgba(0, 200, 255, 0.35);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px rgba(0, 200, 255, 0.25);
            --shadow-glow-lg: 0 0 48px rgba(0, 200, 255, 0.3), 0 0 80px rgba(139, 92, 246, 0.2);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --header-height: 68px;
            --container-max: 1200px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
            font-size: inherit;
        }
        input {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
        }
        h3 {
            font-size: clamp(1.1rem, 2vw, 1.5rem);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER / NAV ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            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);
        }
        .header.scrolled {
            background: rgba(6, 6, 18, 0.95);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-glow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: #fff;
            letter-spacing: 0.02em;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
            white-space: nowrap;
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 900;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.4);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-link:hover,
        .nav-link:focus-visible {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: #fff;
            background: rgba(0, 200, 255, 0.12);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            letter-spacing: 0.02em;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.3);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(0, 200, 255, 0.5);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
            width: 40px;
            height: 32px;
            justify-content: center;
            align-items: center;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .hamburger:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
            padding-top: var(--header-height);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 6, 15, 0.65) 0%, rgba(6, 6, 15, 0.82) 40%, rgba(6, 6, 15, 0.94) 100%);
            z-index: 1;
        }
        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 255, 0.18) 0%, transparent 70%);
            top: 20%;
            left: 50%;
            transform: translate(-50%, -30%);
            z-index: 0;
            pointer-events: none;
            animation: heroGlowPulse 5s ease-in-out infinite;
        }
        @keyframes heroGlowPulse {
            0%,
            100% {
                opacity: 0.6;
                transform: translate(-50%, -30%) scale(1);
            }
            50% {
                opacity: 1;
                transform: translate(-50%, -30%) scale(1.2);
            }
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 20px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: rgba(0, 200, 255, 0.12);
            border: 1px solid var(--border-glow);
            color: var(--primary-light);
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: clamp(2.2rem, 5.5vw, 3.8rem);
            font-weight: 900;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.15;
            text-shadow: 0 0 40px rgba(0, 200, 255, 0.4);
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: none;
        }
        .hero-subtitle {
            font-size: clamp(1rem, 1.6vw, 1.2rem);
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 26px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
            text-align: center;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: var(--shadow-glow);
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-lg);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline:hover {
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #1a1a0a;
            box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
            border: 1px solid transparent;
            font-weight: 700;
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(245, 158, 11, 0.5);
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-subtle);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0.01em;
            font-variant-numeric: tabular-nums;
            font-family: var(--font-mono);
        }
        .hero-stat-value .accent {
            color: var(--accent);
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-top: 4px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-pad) 20px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
            padding: 4px 12px;
            border-radius: 12px;
            background: rgba(0, 200, 255, 0.08);
            border: 1px solid rgba(0, 200, 255, 0.2);
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== FEATURES ========== */
        #features {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        #features::before {
            content: '';
            position: absolute;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
            top: -80px;
            right: -100px;
            pointer-events: none;
            z-index: 0;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(180deg, rgba(0, 200, 255, 0.04) 0%, transparent 60%);
            pointer-events: none;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md), 0 0 30px rgba(0, 200, 255, 0.12);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            background: linear-gradient(135deg, rgba(0, 200, 255, 0.15), rgba(139, 92, 246, 0.15));
            color: var(--primary-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .feature-card:hover .feature-icon {
            transform: scale(1.08);
            box-shadow: 0 0 20px rgba(0, 200, 255, 0.3);
        }
        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ========== MATCHES ========== */
        #matches {
            background: var(--bg-deep);
            position: relative;
        }
        .matches-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .match-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
        }
        .match-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg), 0 0 28px rgba(0, 200, 255, 0.1);
            border-color: var(--border-glow);
        }
        .match-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }
        .match-card-body {
            padding: 18px 20px 20px;
        }
        .match-card-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(0, 200, 255, 0.12);
            color: var(--primary-light);
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .match-card-badge.live {
            background: rgba(239, 68, 68, 0.2);
            color: #f87171;
            animation: livePulse 1.5s ease-in-out infinite;
        }
        @keyframes livePulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
        .match-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }
        .match-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .match-card-meta {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .match-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== PROCESS ========== */
        #process {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        #process::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 255, 0.08) 0%, transparent 70%);
            bottom: -120px;
            left: -150px;
            pointer-events: none;
            z-index: 0;
        }
        .process-bracket {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .process-step {
            flex: 1 1 220px;
            max-width: 260px;
            text-align: center;
            position: relative;
            padding: 20px 16px;
        }
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 50px;
            right: -30px;
            width: 50px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0.5;
            z-index: 0;
        }
        .process-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 0 20px rgba(0, 200, 255, 0.35);
            position: relative;
            z-index: 1;
        }
        .process-step h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== STATS ========== */
        #stats {
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-attachment: fixed;
            position: relative;
            padding: var(--section-pad) 20px;
        }
        #stats .stats-overlay {
            position: absolute;
            inset: 0;
            background: rgba(6, 6, 15, 0.88);
            z-index: 1;
        }
        #stats .container {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: rgba(18, 18, 42, 0.7);
            border: 1px solid var(--border-subtle);
            backdrop-filter: blur(4px);
            transition: transform var(--transition-base), border-color var(--transition-base);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-glow);
        }
        .stat-value {
            font-size: 2.6rem;
            font-weight: 900;
            color: #fff;
            font-family: var(--font-mono);
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, var(--primary-light), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-top: 6px;
            font-weight: 600;
        }

        /* ========== TEAM SHOWCASE ========== */
        #showcase {
            background: var(--bg-deep);
            position: relative;
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .showcase-img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-xl);
            border: 2px solid var(--border-card);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .showcase-img:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .showcase-text h2 {
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .showcase-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .showcase-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .showcase-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 6px 0;
        }
        .showcase-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(0, 200, 255, 0.6);
        }

        /* ========== FAQ ========== */
        #faq {
            background: var(--bg-dark);
            position: relative;
        }
        .faq-list {
            max-width: 760px;
            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: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.08);
        }
        .faq-item.open {
            border-color: var(--border-glow);
            box-shadow: 0 0 20px rgba(0, 200, 255, 0.12);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-fast);
            letter-spacing: 0.01em;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition-fast), background var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: rgba(0, 200, 255, 0.15);
            color: var(--primary-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== CTA ========== */
        #cta {
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            position: relative;
            padding: var(--section-pad) 20px;
            text-align: center;
        }
        #cta .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 6, 15, 0.9) 0%, rgba(12, 12, 29, 0.85) 100%);
            z-index: 1;
        }
        #cta .container {
            position: relative;
            z-index: 2;
        }
        .cta-content {
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.6rem, 3.2vw, 2.4rem);
            font-weight: 900;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .cta-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 20px 28px;
            text-align: center;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            margin-bottom: 16px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }
        .footer-copy strong {
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matches-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .showcase-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .process-step:not(:last-child)::after {
                width: 30px;
                right: -18px;
            }
            .process-step {
                max-width: 200px;
                flex: 1 1 160px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 58px;
                --section-pad: 48px;
            }
            .nav-list {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(8, 8, 22, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 32px;
                gap: 8px;
                z-index: 999;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-link {
                font-size: 1rem;
                padding: 12px 24px;
                border-radius: 24px;
            }
            .nav-cta {
                margin-top: 12px;
                font-size: 0.95rem;
                padding: 12px 28px;
            }
            .hamburger {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .matches-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .process-bracket {
                flex-direction: column;
                align-items: center;
                gap: 0;
            }
            .process-step {
                max-width: 100%;
                flex: 1 1 auto;
                width: 100%;
                padding: 14px 20px;
            }
            .process-step:not(:last-child)::after {
                display: none;
            }
            .process-step:not(:last-child)::before {
                content: '';
                display: block;
                width: 2px;
                height: 28px;
                background: linear-gradient(180deg, var(--primary), var(--secondary));
                margin: 8px auto;
                opacity: 0.5;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat-value {
                font-size: 1.4rem;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            .showcase-list li {
                justify-content: center;
            }
            #stats {
                background-attachment: scroll;
            }
        }

        @media (max-width: 520px) {
            :root {
                --header-height: 54px;
                --section-pad: 36px;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .hero {
                min-height: 90vh;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .stat-label {
                font-size: 0.72rem;
            }
            .hero-stats {
                gap: 14px;
                flex-wrap: wrap;
            }
            .hero-stat-value {
                font-size: 1.2rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .footer-links {
                gap: 12px;
            }
            .cta-content h2 {
                font-size: 1.4rem;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.9rem;
            }
            .match-card-body {
                padding: 14px 16px 16px;
            }
            .match-card h3 {
                font-size: 0.95rem;
            }
            .showcase-img {
                aspect-ratio: 3/2;
            }
        }