/* roulang page: index */
/* 设计系统变量 */
    :root {
      --deep-space: #0A0E17;
      --electric-green: #00F0A8;
      --deep-purple: #2D1B69;
      --accent-red: #FF3D5A;
      --white-high: #F2F4F8;
      --gray-blue: #B0B8C5;
      --gray-muted: #6B7280;
      --bg-gradient: linear-gradient(135deg, #0A0E17 0%, #1A1035 100%);
      --card-glass: rgba(45, 27, 105, 0.4);
      --card-border: rgba(0, 240, 168, 0.15);
      --shadow-green: 0 8px 32px rgba(0, 240, 168, 0.08);
      --shadow-hover: 0 12px 40px rgba(0, 240, 168, 0.25);
      --radius-card: 12px;
      --radius-btn: 50px;
      --radius-tag: 50px;
      --font-title: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      --max-width: 1200px;
    }

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

    body {
      font-family: var(--font-title);
      background: var(--deep-space);
      color: var(--gray-blue);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      background-image: radial-gradient(circle at 20% 10%, rgba(0, 240, 168, 0.03) 0%, transparent 40%);
    }

    /* 容器 */
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 1.5rem;
      width: 100%;
    }

    /* 排版 */
    h1, h2, h3 {
      color: var(--white-high);
      font-weight: 700;
    }

    h2 {
      font-size: 2.2rem;
      margin-bottom: 2.5rem;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    h2::before {
      content: '';
      display: inline-block;
      width: 5px;
      height: 28px;
      background: var(--electric-green);
      border-radius: 4px;
      box-shadow: 0 0 12px var(--electric-green);
    }

    p {
      color: var(--gray-blue);
    }

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

    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(10, 14, 23, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      z-index: 100;
      border-bottom: 1px solid rgba(0, 240, 168, 0.15);
      padding: 0.8rem 0;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 800;
      font-size: 1.5rem;
      color: var(--white-high);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 28px;
      height: 28px;
      background: var(--electric-green);
      mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M1 21l12-18l12 18H1z" fill="black"/><circle cx="12" cy="12" r="3" fill="black"/></svg>') center/contain no-repeat;
      mask-size: contain;
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
    }
    .nav-links a {
      color: var(--gray-blue);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding: 0.25rem 0;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--electric-green);
      transition: width 0.2s;
    }
    .nav-links a:hover {
      color: var(--electric-green);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .btn-nav {
      background: var(--electric-green);
      color: #0A0E17;
      border: none;
      padding: 0.5rem 1.8rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 0 15px rgba(0, 240, 168, 0.3);
      font-size: 0.9rem;
    }
    .btn-nav:hover {
      box-shadow: 0 0 25px rgba(0, 240, 168, 0.7);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: var(--white-high);
      font-size: 1.8rem;
      cursor: pointer;
    }

    /* Hero */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      background: var(--bg-gradient);
      position: relative;
      overflow: hidden;
      padding: 6rem 1rem 4rem;
    }
    .hero::before {
      content: '';
      position: absolute;
      width: 100%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.18;
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
    }
    .hero h1 {
      font-size: clamp(2.5rem, 6vw, 4.5rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      background: linear-gradient(to right, #fff, #00F0A8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 1.2rem;
      line-height: 1.2;
    }
    .hero-sub {
      font-size: 1.3rem;
      color: var(--gray-blue);
      margin-bottom: 2.5rem;
    }
    .hero-buttons {
      display: flex;
      gap: 1.2rem;
      justify-content: center;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--electric-green);
      color: #0A0E17;
      border: none;
      padding: 0.9rem 2.6rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 0 18px rgba(0, 240, 168, 0.4);
      font-size: 1rem;
    }
    .btn-primary:hover {
      box-shadow: 0 0 30px rgba(0, 240, 168, 0.8);
      transform: scale(1.03);
    }
    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--electric-green);
      color: var(--electric-green);
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-secondary:hover {
      background: rgba(0, 240, 168, 0.1);
    }
    .live-ticker {
      margin-top: 3rem;
      background: rgba(0,0,0,0.5);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(0,240,168,0.25);
      border-radius: 50px;
      padding: 0.6rem 2rem;
      display: inline-flex;
      align-items: center;
      gap: 0.8rem;
      font-weight: 600;
      color: var(--white-high);
      animation: pulseTicker 2s infinite;
    }
    @keyframes pulseTicker {
      0% { border-color: rgba(0,240,168,0.3); }
      50% { border-color: var(--electric-green); }
      100% { border-color: rgba(0,240,168,0.3); }
    }

    /* 通用板块 */
    section {
      padding: 6rem 0;
    }

    /* 核心优势 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
    }
    .adv-card {
      background: var(--card-glass);
      backdrop-filter: blur(12px);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-card);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: var(--transition);
    }
    .adv-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
    }
    .adv-icon {
      font-size: 2.4rem;
      color: var(--electric-green);
      margin-bottom: 1rem;
    }
    .adv-number {
      font-size: 2rem;
      font-weight: 700;
      color: var(--electric-green);
    }

    /* 赛事卡片 */
    .matches-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .match-card {
      background: var(--card-glass);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid rgba(0,240,168,0.1);
      transition: all 0.25s;
    }
    .match-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 35px rgba(0,240,168,0.2);
    }
    .match-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      background: #1a1f35;
    }
    .match-info {
      padding: 1.2rem;
    }
    .tag-live {
      background: var(--accent-red);
      color: white;
      padding: 0.2rem 1rem;
      border-radius: 50px;
      font-size: 0.8rem;
      font-weight: 700;
      display: inline-block;
    }
    .tag-upcoming {
      background: #2D1B69;
      color: #B0B8C5;
      padding: 0.2rem 1rem;
      border-radius: 50px;
    }

    /* 流程 */
    .steps {
      display: flex;
      justify-content: space-between;
      gap: 2rem;
    }
    .step {
      flex: 1;
      text-align: center;
      background: rgba(45,27,105,0.3);
      border-radius: var(--radius-card);
      padding: 2rem;
    }

    /* 数据滚动 */
    .stats-row {
      display: flex;
      justify-content: space-around;
      background: #0f0a1f;
      padding: 3rem 1rem;
      border-radius: 24px;
    }
    .stat-number {
      font-size: 3rem;
      font-weight: 800;
      color: var(--electric-green);
    }

    /* FAQ */
    .faq-item {
      background: rgba(45,27,105,0.3);
      border: 1px solid transparent;
      border-radius: 10px;
      margin-bottom: 1rem;
      padding: 1.2rem;
      cursor: pointer;
      transition: 0.2s;
    }
    .faq-item.active {
      border-color: var(--electric-green);
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #0d0720, #160d30);
      text-align: center;
    }
    .phone-mockup {
      max-width: 220px;
      margin: 2rem auto;
    }

    /* 页脚 */
    footer {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding: 2.5rem 0;
    }
    .footer-grid {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1.5rem;
    }

    @media (max-width: 1024px) {
      .advantages-grid { grid-template-columns: repeat(2,1fr); }
      .matches-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
      .advantages-grid, .matches-grid { grid-template-columns: 1fr; }
      .steps { flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      * { animation: none !important; transition: none !important; }
    }