/* roulang page: index */
:root {
            --bg-deep: #0a0a14;
            --bg-card: #141428;
            --bg-surface: #0d0d1f;
            --border-subtle: #1e1e3a;
            --text-primary: #f0f0f5;
            --text-muted: #8899aa;
            --neon-cyan: #00e5ff;
            --neon-purple: #b347ea;
            --neon-pink: #ff2d78;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-glow-cyan: 0 0 20px rgba(0, 229, 255, 0.3), 0 0 50px rgba(0, 229, 255, 0.1);
            --shadow-glow-purple: 0 0 20px rgba(179, 71, 234, 0.3), 0 0 50px rgba(179, 71, 234, 0.1);
            --shadow-glow-pink: 0 0 20px rgba(255, 45, 120, 0.3), 0 0 50px rgba(255, 45, 120, 0.1);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 229, 255, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 60%, rgba(179, 71, 234, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 85%, rgba(255, 45, 120, 0.03) 0%, transparent 55%);
            background-attachment: fixed;
        }

        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;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        /* 容器 */
        .container-custom {
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 20, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(30, 30, 58, 0.7);
            transition: all var(--transition-smooth);
            height: 68px;
        }

        .site-header.scrolled {
            background: rgba(10, 10, 20, 0.95);
            border-bottom-color: rgba(0, 229, 255, 0.25);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            height: 60px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo-text {
            font-size: 1.55rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            color: #ffffff;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
        }

        .logo-text .logo-icon {
            font-size: 1.7rem;
            color: var(--neon-cyan);
            animation: pulseNeon 2s ease-in-out infinite;
        }

        .logo-text:hover {
            color: var(--neon-cyan);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 9px 16px;
            border-radius: 22px;
            font-size: 0.93rem;
            font-weight: 500;
            color: #c0c8d4;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links a.nav-cta-btn {
            background: linear-gradient(135deg, var(--neon-cyan), #00b8d4);
            color: #0a0a14;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 24px;
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
            margin-left: 8px;
            transition: all var(--transition-smooth);
        }

        .nav-links a.nav-cta-btn:hover {
            box-shadow: 0 0 32px rgba(0, 229, 255, 0.6);
            transform: translateY(-2px);
            background: linear-gradient(135deg, #33eaff, #00c8e0);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.6rem;
            padding: 6px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mobile-toggle:hover {
            color: var(--neon-cyan);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 10, 20, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            padding: 32px 24px;
            gap: 8px;
            overflow-y: auto;
            border-top: 1px solid rgba(30, 30, 58, 0.6);
        }

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

        .mobile-menu a {
            display: block;
            padding: 14px 20px;
            font-size: 1.1rem;
            font-weight: 600;
            color: #c0c8d4;
            border-radius: 12px;
            transition: all var(--transition-fast);
            text-align: center;
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .mobile-menu a.mobile-cta {
            background: linear-gradient(135deg, var(--neon-cyan), #00b8d4);
            color: #0a0a14;
            font-weight: 700;
            margin-top: 12px;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: 80px;
            padding-bottom: 60px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(10, 10, 20, 0.65) 0%,
                    rgba(10, 10, 20, 0.8) 40%,
                    rgba(10, 10, 20, 0.92) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-purple), transparent);
            z-index: 2;
            animation: scanLine 4s linear infinite;
            opacity: 0.7;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--neon-cyan);
            border: 1px solid rgba(0, 229, 255, 0.4);
            background: rgba(0, 229, 255, 0.08);
            margin-bottom: 24px;
            animation: fadeInUp 0.7s ease-out forwards;
        }

        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            margin: 0 0 20px;
            color: #ffffff;
            letter-spacing: 0.02em;
            animation: fadeInUp 0.7s ease-out 0.15s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-title .highlight {
            color: var(--neon-cyan);
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.5), 0 0 60px rgba(0, 229, 255, 0.2);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: #bcc4d0;
            margin: 0 0 36px;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            animation: fadeInUp 0.7s ease-out 0.3s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            animation: fadeInUp 0.7s ease-out 0.45s forwards;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            background: linear-gradient(135deg, var(--neon-cyan), #00b8d4);
            color: #0a0a14;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-smooth);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.6), 0 0 80px rgba(0, 229, 255, 0.25);
            transform: translateY(-3px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .btn-outline:hover {
            border-color: var(--neon-purple);
            color: var(--neon-purple);
            box-shadow: var(--shadow-glow-purple);
            transform: translateY(-3px);
        }

        /* 板块通用 */
        .section-block {
            padding: 90px 0;
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--neon-cyan);
            margin-bottom: 12px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 229, 255, 0.07);
            border: 1px solid rgba(0, 229, 255, 0.2);
        }

        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: #ffffff;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.7;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* 卡片 */
        .card-glow {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .card-glow::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.5), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .card-glow:hover {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-6px);
        }

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

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .card-icon.cyan {
            background: rgba(0, 229, 255, 0.12);
            color: var(--neon-cyan);
        }
        .card-icon.purple {
            background: rgba(179, 71, 234, 0.12);
            color: var(--neon-purple);
        }
        .card-icon.pink {
            background: rgba(255, 45, 120, 0.12);
            color: var(--neon-pink);
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 8px;
            letter-spacing: 0.02em;
        }

        .card-desc {
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
        }

        /* 比分卡片 */
        .score-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: all var(--transition-smooth);
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .score-card:hover {
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }

        .score-card .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #ff2d78;
            box-shadow: 0 0 10px rgba(255, 45, 120, 0.7);
            animation: glowPulse 2.5s ease-in-out infinite;
            flex-shrink: 0;
        }

        .score-card .game-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            color: var(--neon-cyan);
        }

        .score-card .team-info {
            flex: 1;
            min-width: 100px;
        }
        .score-card .team-name {
            font-weight: 700;
            color: #ffffff;
            font-size: 0.95rem;
        }
        .score-card .score-display {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--neon-cyan);
            letter-spacing: 0.04em;
            font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
            text-shadow: 0 0 16px rgba(0, 229, 255, 0.4);
        }
        .score-card .match-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .score-card .status-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }
        .status-badge.live {
            background: rgba(255, 45, 120, 0.15);
            color: #ff2d78;
            border: 1px solid rgba(255, 45, 120, 0.3);
        }
        .status-badge.upcoming {
            background: rgba(179, 71, 234, 0.12);
            color: #b347ea;
            border: 1px solid rgba(179, 71, 234, 0.25);
        }
        .status-badge.ended {
            background: rgba(136, 153, 170, 0.1);
            color: #8899aa;
            border: 1px solid rgba(136, 153, 170, 0.2);
        }

        /* 流程 */
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--neon-cyan), #00b8d4);
            color: #0a0a14;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
        }

        .step-connector {
            width: 2px;
            height: 40px;
            background: linear-gradient(180deg, var(--neon-cyan), var(--neon-purple));
            margin: 8px auto;
            opacity: 0.5;
            border-radius: 1px;
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }
        .faq-item.active {
            border-color: rgba(0, 229, 255, 0.45);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.12);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            gap: 12px;
        }

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

        .faq-icon {
            font-size: 0.85rem;
            color: var(--neon-cyan);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            margin: 0;
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin: 0 24px;
            padding: 70px 40px;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 20, 0.82);
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            text-align: center;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 24px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            padding: 4px 8px;
            border-radius: 4px;
        }

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

        .footer-copyright {
            color: var(--text-muted);
            font-size: 0.82rem;
            letter-spacing: 0.03em;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section-block {
                padding: 64px 0;
            }
            .cta-section {
                margin: 0 16px;
                padding: 50px 28px;
                border-radius: var(--radius-lg);
            }
            .score-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .score-card .score-display {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .site-header {
                height: 60px;
            }
            .site-header.scrolled {
                height: 54px;
            }
            .hero-section {
                min-height: auto;
                padding-top: 100px;
                padding-bottom: 60px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .card-glow {
                padding: 24px 20px;
            }
            .cta-section {
                margin: 0 12px;
                padding: 40px 20px;
                border-radius: var(--radius-md);
            }
            .footer-links {
                gap: 12px;
                flex-direction: column;
                align-items: center;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .score-card {
                padding: 16px;
            }
            .score-card .score-display {
                font-size: 1.1rem;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .card-glow {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 32px 16px;
                margin: 0 8px;
            }
        }