/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    
    :root {
      --charcoal: #1E1E1E;
      --cyan-electric: #00C2BA;
      --warm-copper: #E07B4C;
      --cream: #F9F7F4;
      --soft-gray: #5C5C5C;
      --muted: #9E9E9E;
      --border-light: #E0DED9;
      --card-radius: 12px;
      --btn-radius: 9999px;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, sans-serif;
      background-color: #F9F7F4;
      color: #1E1E1E;
      line-height: 1.7;
      margin: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    .font-display {
      font-family: 'Inter', 'SF Pro Display', system-ui, sans-serif;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.25s ease;
    }

    button, input {
      font-family: inherit;
    }

    /* 自定义滚动条 (静默) */
    ::-webkit-scrollbar {
      width: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #F9F7F4;
    }
    ::-webkit-scrollbar-thumb {
      background: #E0DED9;
      border-radius: 3px;
    }

    /* 导航毛玻璃 */
    .nav-glass {
      background: rgba(249, 247, 244, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0,0,0,0.04);
    }

    /* 汉堡菜单动画 */
    .hamburger-line {
      transition: all 0.3s ease;
    }
    .hamburger-active .line-1 {
      transform: translateY(8px) rotate(45deg);
    }
    .hamburger-active .line-2 {
      opacity: 0;
    }
    .hamburger-active .line-3 {
      transform: translateY(-8px) rotate(-45deg);
    }

    /* 卡片hover微动效 */
    .card-hover {
      transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    }

    /* 流程连接线 */
    .process-line {
      background: linear-gradient(90deg, #E0DED9 0%, #00C2BA 100%);
      height: 2px;
      width: 100%;
      position: absolute;
      top: 20px;
      left: 0;
      z-index: 0;
    }
    @media (max-width: 767px) {
      .process-line {
        display: none;
      }
    }

    /* FAQ 手风琴 */
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 16px;
      padding-bottom: 8px;
    }
    .faq-arrow {
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    /* 数字递增动画简单占位 */
    .count-up {
      font-variant-numeric: tabular-nums;
    }

    /* 图片遮罩效果 */
    .img-overlay-hover {
      transition: opacity 0.3s ease;
    }
    .card-hover:hover .img-overlay-hover {
      opacity: 0.1;
    }

    /* 自定义聚焦环 */
    *:focus-visible {
      outline: 2px solid #00C2BA;
      outline-offset: 2px;
      border-radius: 4px;
    }

    /* 移动端导航菜单 */
    .mobile-menu {
      transition: opacity 0.3s ease, visibility 0.3s ease;
      opacity: 0;
      visibility: hidden;
    }
    .mobile-menu.open {
      opacity: 1;
      visibility: visible;
    }