/* roulang page: index */
:root {
      --primary: #0A4D2E;
      --primary-hover: #073D22;
      --accent: #F5C518;
      --bg-light: #F4F8F5;
      --text-dark: #1A1A1A;
      --text-muted: #555;
      --border-light: #e0e8e3;
      --radius: 16px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 30px rgba(0,0,0,0.06);
      --shadow-hover: 0 12px 35px rgba(0,0,0,0.12);
      --transition: 0.25s ease;
      --nav-height: 72px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
      line-height: 1.6;
      color: var(--text-dark);
      background-color: #fff;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: var(--nav-height);
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 20px rgba(0,0,0,0.04);
      z-index: 1000;
      transition: background 0.3s, box-shadow 0.3s;
      display: flex;
      align-items: center;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .logo {
      display: flex;
      align-items: center;
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--primary);
      gap: 6px;
    }
    .logo i {
      font-size: 2rem;
      color: var(--accent);
    }
    .logo span {
      font-size: 0.8rem;
      font-weight: 400;
      color: #5f6b63;
      margin-left: 6px;
      letter-spacing: 0.5px;
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
      font-weight: 500;
      color: #2d3a31;
    }
    .nav-links a {
      position: relative;
      padding: 0.25rem 0;
      transition: color 0.2s;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 3px;
      background: var(--primary);
      transition: width 0.25s ease;
      border-radius: 2px;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .cta-btn {
      background: var(--accent);
      color: #1a1a1a;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: 40px;
      transition: background 0.2s, transform 0.15s;
      box-shadow: 0 4px 12px rgba(245,197,24,0.3);
      display: inline-block;
      font-size: 0.95rem;
    }
    .cta-btn:hover {
      background: #e0b010;
      transform: translateY(-1px);
    }
    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: var(--primary);
      background: none;
      border: none;
      cursor: pointer;
    }
    /* Hero */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: linear-gradient(135deg, rgba(10,77,46,0.75) 0%, rgba(7,61,34,0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      background-blend-mode: overlay;
      position: relative;
      margin-top: 0;
      padding-top: var(--nav-height);
    }
    .hero-content {
      text-align: center;
      color: white;
      max-width: 900px;
      margin: 0 auto;
      padding: 2rem 1rem;
    }
    .countdown-box {
      background: rgba(255,255,255,0.12);
      backdrop-filter: blur(8px);
      border-radius: 24px;
      padding: 1.2rem 2rem;
      display: inline-flex;
      gap: 1.5rem;
      margin-bottom: 2rem;
      border: 1px solid rgba(255,255,255,0.25);
    }
    .count-item {
      text-align: center;
    }
    .count-number {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.1;
      color: var(--accent);
    }
    .count-label {
      font-size: 0.9rem;
      opacity: 0.85;
    }
    .hero h1 {
      font-size: 3.4rem;
      font-weight: 700;
      margin-bottom: 1rem;
      letter-spacing: 1px;
    }
    .hero .subtitle {
      font-size: 1.25rem;
      margin-bottom: 2.5rem;
      opacity: 0.9;
    }
    .hero-actions {
      display: flex;
      gap: 1.2rem;
      justify-content: center;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--accent);
      color: #1a1a1a;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 40px;
      transition: 0.2s;
    }
    .btn-primary:hover {
      background: #e6b800;
    }
    .btn-outline {
      border: 2px solid white;
      color: white;
      font-weight: 600;
      padding: 12px 32px;
      border-radius: 40px;
      transition: 0.2s;
    }
    .btn-outline:hover {
      background: rgba(255,255,255,0.2);
    }
    /* 通用板块 */
    section {
      padding: 5rem 0;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--primary);
    }
    .section-sub {
      color: #4a5b4e;
      margin-bottom: 3rem;
      font-size: 1.1rem;
    }
    /* 赛程卡片 */
    .schedule-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.8rem;
      margin-top: 2rem;
    }
    .match-card {
      background: white;
      border-radius: var(--radius);
      padding: 1.5rem;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
      transition: var(--transition);
      border-left: 6px solid var(--primary);
    }
    .match-card.soon {
      border-left-color: var(--accent);
    }
    .match-card .teams {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 700;
      font-size: 1.2rem;
    }
    .flag-icon {
      width: 32px;
      height: 32px;
      background: #ddd;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background-size: cover;
    }
    .match-info {
      font-size: 0.9rem;
      color: #4a5b4e;
      display: flex;
      justify-content: space-between;
    }
    .status-badge {
      background: #eaf7ea;
      color: var(--primary);
      padding: 2px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    /* 优势区不对称网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      margin-top: 2rem;
    }
    .feature-item {
      background: white;
      padding: 2rem;
      border-radius: 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .feature-item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      font-size: 2.2rem;
      color: var(--primary);
      margin-bottom: 1rem;
    }
    /* 数据看板 */
    .stats-wall {
      background: #0A4D2E;
      color: white;
      padding: 3rem 0;
      overflow-x: auto;
    }
    .stat-items {
      display: flex;
      gap: 2.5rem;
      justify-content: center;
      flex-wrap: wrap;
    }
    .stat-digit {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--accent);
    }
    /* 方案交替 */
    .solution-row {
      display: flex;
      align-items: center;
      gap: 3rem;
      margin-bottom: 4rem;
      flex-wrap: wrap;
    }
    .solution-img {
      flex: 1 1 280px;
      background: #d9e4db;
      border-radius: 24px;
      height: 240px;
      overflow: hidden;
    }
    .solution-img img {
      object-fit: cover;
      height: 100%;
      width: 100%;
    }
    /* FAQ */
    .faq-item {
      background: white;
      border-radius: 16px;
      margin-bottom: 1rem;
      box-shadow: 0 2px 12px rgba(0,0,0,0.03);
    }
    .faq-question {
      padding: 1.2rem 1.8rem;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      cursor: pointer;
      background: #f9fbf9;
      border-radius: 16px;
    }
    .faq-answer {
      padding: 0 1.8rem 1.2rem;
      color: #3a4d3e;
      display: none;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    /* CTA块 */
    .cta-full {
      background: linear-gradient(104deg, #0A4D2E 0%, #052E1A 100%);
    }
    /* 页脚 */
    .footer {
      background: #052E1A;
      color: #b0c7b8;
      padding: 2.5rem 0;
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
      .nav-links.open {
        display: flex;
      }
      .hamburger {
        display: block;
      }
      .hero h1 {
        font-size: 2.2rem;
      }
      .features-grid {
        grid-template-columns: 1fr;
      }
      .countdown-box {
        gap: 1rem;
        padding: 1rem;
      }
    }