/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #D4783B;
      --primary-hover: #B85E2A;
      --secondary: #3B2C24;
      --accent: #F0A500;
      --bg-cream: #FAF7F2;
      --text-dark: #1E1814;
      --text-body: #4A4039;
      --text-muted: #8C8078;
      --border-light: #E8E0D8;
      --card-bg: #FFFFFF;
      --card-alt: #FDFAF6;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 20px;
      --radius-pill: 50px;
      --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --transition: 0.25s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
      background-color: var(--bg-cream);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    .inter-numbers {
      font-family: 'Inter', 'SF Pro Display', system-ui, sans-serif;
      font-weight: 700;
    }
    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 2rem;
      padding-right: 2rem;
    }
    @media (max-width: 640px) {
      .container {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
      }
    }
    /* 导航 */
    .nav-bar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      background: rgba(250, 247, 242, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
    }
    .nav-bar.scrolled {
      background: rgba(255, 255, 255, 0.92);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 2rem;
    }
    .logo {
      font-weight: 700;
      font-size: 1.6rem;
      color: var(--secondary);
      letter-spacing: -0.3px;
      white-space: nowrap;
    }
    .logo span {
      color: var(--primary);
    }
    .tab-group {
      display: flex;
      align-items: center;
      background: #f2ede5;
      border-radius: 40px;
      padding: 4px;
      gap: 4px;
    }
    .tab-chip {
      padding: 0.6rem 1.4rem;
      border-radius: 30px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      background: transparent;
      transition: all 0.2s ease;
      cursor: pointer;
      white-space: nowrap;
    }
    .tab-chip.active {
      background: var(--primary);
      color: white;
      font-weight: 600;
      box-shadow: 0 2px 6px rgba(212,120,59,0.3);
    }
    .main-cta-btn {
      background: var(--primary);
      color: white;
      padding: 0.7rem 1.8rem;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.95rem;
      transition: all 0.2s;
      border: none;
      cursor: pointer;
      white-space: nowrap;
      box-shadow: 0 4px 10px rgba(212,120,59,0.25);
    }
    .main-cta-btn:hover {
      background: var(--primary-hover);
      transform: scale(1.03);
      box-shadow: 0 8px 18px rgba(212,120,59,0.35);
    }
    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: var(--secondary);
      background: none;
      border: none;
      cursor: pointer;
    }
    @media (max-width: 1024px) {
      .tab-group, .desktop-cta {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .mobile-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: white;
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        padding: 1.5rem 2rem;
        flex-direction: column;
        gap: 1.2rem;
        z-index: 40;
        border-radius: 0 0 20px 20px;
      }
      .mobile-menu.active {
        display: flex;
      }
      .mobile-tab {
        font-size: 1.1rem;
        font-weight: 500;
        padding: 0.6rem 0;
        border-bottom: 1px solid #eee;
        color: var(--text-body);
        cursor: pointer;
      }
      .mobile-cta {
        margin-top: 1rem;
        width: 100%;
        text-align: center;
        background: var(--primary);
        color: white;
        padding: 0.9rem;
        border-radius: 40px;
        font-weight: 600;
      }
    }
    /* Hero */
    .hero-section {
      padding: 8rem 0 5rem;
      background: linear-gradient(180deg, #FAF7F2 0%, #F5EFE6 100%);
    }
    .data-card {
      background: white;
      border-radius: 20px;
      padding: 1.2rem 1.5rem;
      box-shadow: var(--shadow-xs);
      display: flex;
      align-items: center;
      gap: 1rem;
      border: 1px solid var(--border-light);
    }
    .number-jump {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    /* 板块标题 */
    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 0.75rem;
      letter-spacing: -0.02em;
    }
    .title-decor {
      width: 50px;
      height: 4px;
      background: var(--primary);
      border-radius: 2px;
      margin-bottom: 2rem;
    }
    /* 卡片 hover */
    .feature-card, .service-card {
      background: white;
      border-radius: 20px;
      padding: 2rem;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-xs);
      transition: all 0.3s ease;
    }
    .feature-card:hover, .service-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
      border-color: #d4b69c;
    }
    /* FAQ */
    .faq-item {
      border: 1px solid var(--border-light);
      border-radius: 12px;
      background: white;
      margin-bottom: 14px;
      transition: all 0.3s;
    }
    .faq-item.active {
      border-color: var(--primary);
      background: #fef9f4;
    }
    /* 输入框下划线 */
    .input-underline {
      background: transparent;
      border: none;
      border-bottom: 2px solid #d4c8b6;
      padding: 0.8rem 0.4rem;
      width: 100%;
      font-size: 1rem;
      outline: none;
      transition: border 0.25s;
    }
    .input-underline:focus {
      border-bottom-color: var(--primary);
    }