/* roulang page: index */
:root {
      --primary-gradient: linear-gradient(135deg, #7B2FF7 0%, #00F2FE 100%);
      --primary-purple: #7B2FF7;
      --primary-cyan: #00F2FE;
      --accent-orange: #FF4D4D;
      --win-green: #00E676;
      --loss-red: #FF1744;
      --bg-dark: #0B0C10;
      --card-bg: rgba(26, 28, 36, 0.9);
      --text-primary: #FFFFFF;
      --text-secondary: #B0B3C0;
      --text-muted: #6B6F7C;
      --border-gradient: linear-gradient(135deg, rgba(123,47,247,0.3), rgba(0,242,254,0.3));
      --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
      --radius-lg: 16px;
      --radius-pill: 50px;
      --transition: 0.25s ease;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: 'Noto Sans SC', 'Inter', sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-primary);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    h1, h2, h3 {
      font-weight: 700;
      letter-spacing: -0.5px;
    }
    h1 { font-size: 42px; }
    h2 { font-size: 32px; margin-bottom: 16px; }
    h3 { font-size: 20px; font-weight: 600; }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, .btn {
      cursor: pointer;
      font-family: inherit;
      font-weight: 600;
      transition: all 0.3s ease;
      border: none;
      outline: none;
    }
    .section {
      padding: 100px 0;
    }
    /* 导航栏 - PC 顶部固定 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 12, 16, 0.75);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(123,47,247,0.15);
      transition: background 0.3s;
    }
    .navbar.scrolled {
      background: rgba(11, 12, 16, 0.95);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      font-size: 24px;
      font-weight: 700;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }
    .logo i {
      font-size: 28px;
      background: none;
      -webkit-text-fill-color: #00F2FE;
    }
    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none;
    }
    .nav-links a {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 15px;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: white;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-gradient);
      transition: width 0.3s;
    }
    .nav-links a:hover::after { width: 100%; }
    .btn-primary {
      background: var(--primary-gradient);
      color: white;
      padding: 12px 28px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      box-shadow: 0 4px 15px rgba(123,47,247,0.4);
      display: inline-block;
    }
    .btn-primary:hover {
      box-shadow: 0 0 22px rgba(123,47,247,0.7);
      transform: translateY(-1px);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid transparent;
      background-image: linear-gradient(rgba(11,12,16,0.8), rgba(11,12,16,0.8)), var(--primary-gradient);
      background-origin: border-box;
      background-clip: padding-box, border-box;
      color: white;
      padding: 12px 28px;
      border-radius: var(--radius-pill);
      font-weight: 600;
    }
    .btn-outline:hover {
      background-image: linear-gradient(rgba(123,47,247,0.1), rgba(0,242,254,0.1)), var(--primary-gradient);
    }
    /* 移动端底部导航 */
    .mobile-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(18, 20, 28, 0.95);
      backdrop-filter: blur(20px);
      border-top: 1px solid rgba(123,47,247,0.25);
      z-index: 1000;
      justify-content: space-around;
      padding: 10px 16px;
    }
    .mobile-nav a {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
      gap: 4px;
    }
    .mobile-nav a i { font-size: 20px; }
    .mobile-nav a.active { color: var(--primary-cyan); }
    /* Hero */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      padding-top: 80px;
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 20% 30%, rgba(123,47,247,0.25), transparent 70%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
    }
    .hero h1 {
      font-size: 48px;
      line-height: 1.2;
      margin-bottom: 24px;
    }
    .hero .subtitle {
      font-size: 18px;
      color: var(--text-secondary);
      margin-bottom: 36px;
    }
    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    /* 实时比分小部件 */
    .live-scores {
      display: flex;
      gap: 20px;
      margin-top: 50px;
      flex-wrap: wrap;
    }
    .live-badge {
      background: var(--card-bg);
      border-radius: 12px;
      padding: 16px 20px;
      border: 1px solid rgba(123,47,247,0.25);
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      gap: 20px;
      font-weight: 600;
    }
    .score-digit {
      font-family: 'Inter', sans-serif;
      font-size: 28px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 700;
    }
    /* 板块标题 */
    .section-title {
      text-align: center;
      margin-bottom: 60px;
    }
    .section-title h2 {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }
    /* 数据看板卡片网格 */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .data-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid rgba(123,47,247,0.2);
      transition: all 0.3s;
      backdrop-filter: blur(5px);
    }
    .data-card:hover {
      border-color: var(--primary-cyan);
      transform: translateY(-4px);
      box-shadow: 0 12px 30px rgba(0,0,0,0.6);
    }
    .matchup {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .team {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .score-big {
      font-size: 32px;
      font-weight: 700;
      font-family: 'Inter', sans-serif;
    }
    .badge-stats {
      display: flex;
      gap: 10px;
      margin-top: 12px;
    }
    .badge {
      background: rgba(123,47,247,0.2);
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 13px;
      color: #ccc;
    }
    /* 服务矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      text-align: center;
      transition: 0.25s;
    }
    .service-card:hover { transform: translateY(-5px); }
    .service-card i {
      font-size: 40px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    /* 对比区块 */
    .compare-row {
      display: flex;
      gap: 40px;
      flex-wrap: wrap;
    }
    .compare-col {
      flex: 1;
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .progress-item {
      margin-bottom: 24px;
    }
    .progress-bar {
      height: 8px;
      background: #2A2D37;
      border-radius: 10px;
      margin: 8px 0;
      overflow: hidden;
    }
    .progress-fill {
      height: 100%;
      width: 0%;
      border-radius: 10px;
    }
    .gradient-fill { background: var(--primary-gradient); width: 95%; }
    .gray-fill { background: #5A5E6B; width: 60%; }
    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--card-bg);
      border-radius: 16px;
      margin-bottom: 16px;
      border: 1px solid rgba(123,47,247,0.15);
    }
    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      cursor: pointer;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      padding: 0 24px;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding-bottom: 20px;
    }
    /* 表单 */
    .cta-section {
      background: #0B0C10;
      text-align: center;
    }
    .form-card {
      background: rgba(26,28,36,0.9);
      border-radius: 24px;
      padding: 48px;
      max-width: 600px;
      margin: 0 auto;
    }
    .input-group {
      display: flex;
      gap: 12px;
    }
    .input-group input {
      flex: 1;
      padding: 14px 20px;
      border-radius: 50px;
      background: #1E212A;
      border: 1px solid rgba(123,47,247,0.4);
      color: white;
    }
    /* 页脚 */
    .footer {
      background: #0E1015;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(123,47,247,0.2);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    @media (max-width: 1024px) {
      .cards-grid { grid-template-columns: repeat(2,1fr); }
      .service-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .navbar { display: none; }
      .mobile-nav { display: flex; }
      h1 { font-size: 32px; }
      .section { padding: 60px 0; }
      .cards-grid, .service-grid { grid-template-columns: 1fr; }
      .compare-row { flex-direction: column; }
      .hero { text-align: center; }
      .hero-buttons { justify-content: center; }
      .input-group { flex-direction: column; }
      .footer-grid { grid-template-columns: repeat(2,1fr); }
    }