/* roulang page: index */
:root {
      --primary: #0B5E3C;
      --accent-gold: #F5A623;
      --accent-navy: #1A1A2E;
      --bg-light: #F7F9F5;
      --text-dark: #1E1E1E;
      --text-muted: #5A5A5A;
      --white: #FFFFFF;
      --border-light: rgba(0, 0, 0, 0.05);
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-btn: 8px;
      --transition: 0.25s ease;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --max-width: 1280px;
      --space-section: 80px;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 按钮系统 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 32px;
      font-weight: 600;
      border-radius: var(--radius-btn);
      text-decoration: none;
      transition: var(--transition);
      font-size: 16px;
      cursor: pointer;
      border: none;
      letter-spacing: 0.5px;
    }

    .btn-primary {
      background-color: var(--accent-gold);
      color: var(--white);
      box-shadow: 0 4px 12px rgba(245, 166, 35, 0.35);
    }

    .btn-primary:hover {
      background-color: #E09510;
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(224, 149, 16, 0.4);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary);
      color: var(--white);
      border-color: var(--primary);
    }

    .btn-light {
      background: var(--white);
      color: var(--primary);
      font-weight: 600;
    }

    .btn-light:hover {
      background: #f0f0f0;
    }

    /* 导航 */
    .header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
      height: 72px;
      display: flex;
      align-items: center;
    }

    .nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .logo {
      font-size: 28px;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .logo i {
      color: var(--accent-gold);
      font-size: 32px;
    }

    .nav-links {
      display: flex;
      gap: 36px;
      align-items: center;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text-dark);
      font-weight: 500;
      font-size: 16px;
      transition: color 0.2s;
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    .nav-cta {
      background: var(--accent-gold);
      color: var(--white) !important;
      padding: 10px 24px;
      border-radius: 20px;
      font-weight: 600;
    }

    .hamburger {
      display: none;
      font-size: 24px;
      background: none;
      border: none;
      color: var(--text-dark);
    }

    /* Hero */
    .hero {
      background: linear-gradient(135deg, #0B5E3C 0%, #1A1A2E 100%);
      background-blend-mode: overlay;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 80px 0 100px;
      color: var(--white);
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(0,0,0,0.4);
    }

    .hero .container {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      gap: 40px;
      flex-wrap: wrap;
    }

    .hero-content {
      flex: 1 1 500px;
    }

    .hero h1 {
      font-size: 48px;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 20px;
    }

    .hero .subtitle {
      font-size: 18px;
      margin-bottom: 36px;
      color: rgba(255,255,255,0.9);
    }

    .hero-buttons {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .hero-visual {
      flex: 1 1 400px;
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-lg);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
      border: 1px solid rgba(255,255,255,0.2);
    }

    .live-badge {
      display: flex;
      justify-content: space-between;
      background: var(--accent-navy);
      border-radius: 12px;
      padding: 16px;
      color: white;
      align-items: center;
    }

    .live-score {
      font-size: 28px;
      font-weight: 700;
      color: var(--accent-gold);
    }

    /* 通用板块 */
    .section {
      padding: var(--space-section) 0;
    }

    .section-title {
      font-size: 36px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-dark);
    }

    .section-desc {
      color: var(--text-muted);
      margin-bottom: 48px;
      font-size: 18px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .card {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .icon-circle {
      width: 56px;
      height: 56px;
      background: #e9f2ee;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 24px;
      margin-bottom: 20px;
    }

    /* 数据徽章 */
    .stats-banner {
      background: var(--accent-navy);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 24px;
    }

    .stat-item {
      text-align: center;
      color: white;
    }

    .stat-number {
      font-size: 36px;
      font-weight: 700;
      color: var(--accent-gold);
      margin-bottom: 6px;
    }

    /* 流程 */
    .steps {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 24px;
      position: relative;
    }

    .step {
      flex: 1 1 180px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 48px;
      height: 48px;
      background: var(--primary);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 8px;
    }

    /* FAQ */
    .faq-item {
      background: var(--white);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      box-shadow: var(--shadow-card);
    }

    .faq-question {
      padding: 20px 28px;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      border-left: 4px solid var(--primary);
    }

    .faq-answer {
      padding: 0 28px 20px;
      color: var(--text-muted);
      display: none;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .cta-banner {
      background: linear-gradient(135deg, #0B5E3C, #1A1A2E);
      border-radius: var(--radius-lg);
      padding: 64px 32px;
      text-align: center;
      color: white;
    }

    footer {
      background: var(--accent-navy);
      color: #cccccc;
      padding: 60px 0 30px;
    }

    footer a {
      color: #ddd;
      text-decoration: none;
    }

    @media (max-width: 1024px) {
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .hero h1 {
        font-size: 32px;
      }
      .grid-3, .stats-banner, .steps {
        grid-template-columns: 1fr;
      }
      .container {
        padding: 0 20px;
      }
      .section {
        padding: 48px 0;
      }
    }

    @media (max-width: 520px) {
      .hero-buttons .btn {
        width: 100%;
      }
    }