/* roulang page: index */
:root {
      --brand-dark: #0D202D;
      --brand-teal: #0E8388;
      --brand-accent: #FF5E3A;
      --brand-coral: #FF8343;
      --bg-gray: #F4F7F9;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --radius-card: 1.25rem;
    }

    * {
      box-sizing: border-box;
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-gray);
      margin: 0;
      padding: 0;
      line-height: 1.6;
    }

    .btn-gradient-accent {
      background: linear-gradient(135deg, #FF5E3A 0%, #FF8343 100%);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-gradient-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 20px -5px rgba(255, 94, 58, 0.4);
    }

    .btn-gradient-teal {
      background: linear-gradient(135deg, #0D202D 0%, #0E8388 100%);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-gradient-teal:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 20px -5px rgba(14, 131, 136, 0.35);
    }

    .badge-capsule {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      padding: 0.3rem 0.85rem;
      border-radius: 9999px;
      font-size: 0.8125rem;
      font-weight: 500;
      border: 1px solid rgba(14, 131, 136, 0.2);
      background-color: rgba(14, 131, 136, 0.05);
    }

    /* 折叠手风琴箭头动效 */
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] .faq-icon {
      transform: rotate(45deg);
    }

    /* 输入框聚焦统一光晕 */
    input:focus, select:focus, textarea:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(14, 131, 136, 0.25);
      border-color: #0E8388 !important;
    }