/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');

    :root {
      --primary: #C8A45C;
      --primary-dark: #B8943E;
      --primary-light: rgba(200, 164, 92, 0.12);
      --secondary: #1E1E1E;
      --bg: #FAF8F5;
      --surface: #FFFFFF;
      --text: #3A3A3A;
      --text-muted: #6B6B6B;
      --border-light: #E0DCD5;
      --accent-copper: #B8863E;
      --success: #2D6A4F;
      --danger: #C44536;
      --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --shadow-gold: 0 4px 12px rgba(200,164,92,0.3);
      --radius-md: 12px;
      --radius-btn: 8px;
      --transition: 0.25s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Inter', system-ui, -apple-system, sans-serif;
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: #FFFFFF;
      box-shadow: 0 1px 3px rgba(0,0,0,0.04);
      height: 70px;
      display: flex;
      align-items: center;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.25rem;
      color: var(--secondary);
      text-decoration: none;
    }
    .logo-icon {
      width: 48px;
      height: 48px;
      background: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: 700;
      font-size: 1.1rem;
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      margin-left: auto;
      align-items: center;
    }
    .nav-links a {
      text-decoration: none;
      color: #4A4A4A;
      font-size: 0.95rem;
      font-weight: 500;
      position: relative;
      transition: color var(--transition);
      padding-bottom: 4px;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary);
      transition: width var(--transition);
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .search-box {
      background: #F5F5F5;
      border-radius: 20px;
      padding: 8px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: #6B6B6B;
      font-size: 0.9rem;
    }
    .btn-primary {
      background: var(--primary);
      color: white;
      padding: 10px 22px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      display: inline-block;
      transition: background var(--transition), box-shadow var(--transition);
      border: none;
      cursor: pointer;
      font-size: 0.95rem;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: var(--shadow-gold);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      padding: 10px 22px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      display: inline-block;
      transition: all var(--transition);
    }
    .btn-outline:hover {
      background: rgba(200,164,92,0.08);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--secondary);
      margin-left: auto;
    }
    /* 板块间距 */
    section {
      padding: 80px 0;
    }
    @media (max-width: 768px) {
      section {
        padding: 60px 0;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        box-shadow: var(--shadow-md);
        padding: 20px;
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .search-box {
        display: none;
      }
    }
    /* Hero */
    .hero {
      background: linear-gradient(90deg, #1E1E1E 0%, rgba(30,30,30,0.7) 65%, transparent 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 520px;
      display: flex;
      align-items: center;
      color: white;
    }
    .hero-content {
      display: flex;
      align-items: center;
      gap: 40px;
      flex-wrap: wrap;
    }
    .hero-text {
      flex: 1;
    }
    .hero h1 {
      font-size: 2.8rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.3;
      margin-bottom: 1rem;
    }
    .hero .sub {
      font-size: 1.1rem;
      opacity: 0.9;
      margin-bottom: 2rem;
    }
    .hero-visual {
      flex: 0 0 300px;
    }
    .hero-visual img {
      width: 100%;
      border-radius: 24px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    }
    @media (max-width: 768px) {
      .hero {
        min-height: 420px;
        background: linear-gradient(0deg, rgba(30,30,30,0.8), rgba(30,30,30,0.5)), url('/assets/images/backpic/back-1.webp') center/cover;
      }
      .hero-content {
        flex-direction: column;
        text-align: center;
      }
      .hero h1 {
        font-size: 2rem;
      }
      .hero-visual {
        flex: 0 0 auto;
        width: 80%;
        margin-top: 20px;
      }
    }
    /* 卡片统一样式 */
    .card {
      background: var(--surface);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      padding: 24px;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .icon-bg {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.5rem;
      margin-bottom: 1rem;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 600;
      color: var(--secondary);
      margin-bottom: 2.5rem;
    }
    .stats-bar {
      background: var(--secondary);
      color: white;
      padding: 40px 0;
    }
    .stat-number {
      font-size: 2.4rem;
      font-weight: 700;
      color: var(--primary);
      font-family: 'Inter', sans-serif;
      tabular-nums: lining-nums;
    }
    .faq-item {
      background: var(--bg);
      border-radius: 10px;
      margin-bottom: 8px;
      overflow: hidden;
    }
    .faq-question {
      padding: 16px 20px;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: white;
      padding: 0 20px;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding: 16px 20px;
    }
    .cta-banner {
      background: linear-gradient(135deg, #C8A45C 0%, #1E1E1E 100%);
      color: white;
      text-align: center;
      padding: 70px 20px;
      border-radius: 24px;
      margin: 60px 0;
    }
    footer {
      background: #1E1E1E;
      color: #B0B0B0;
      padding: 60px 0 20px;
    }
    footer a {
      color: #B0B0B0;
      text-decoration: none;
    }
    footer a:hover {
      color: var(--primary);
    }