/* roulang page: index */
:root {
      --grape: #3C1E3F;
      --grape-dark: #2A152E;
      --amber: #C8923B;
      --amber-dark: #A6762A;
      --leaf: #5B7B4C;
      --warm: #FBF7F2;
      --card: #FFFFFF;
      --soft-line: #E5D9C4;
      --testimony-bg: #FDFAF5;
      --input-border: #D4C5B2;
      --shadow-card: 0 4px 20px rgba(60,30,63,0.08);
      --shadow-hover: 0 8px 30px rgba(60,30,63,0.15);
      --radius-xl: 16px;
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, 'PingFang SC', 'Source Han Sans CN', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
      background-color: #FBF7F2;
      color: #4B5563;
      line-height: 1.6;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }
    /* 自定义焦点与交互 */
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
      outline: 2px solid #C8923B;
      outline-offset: 2px;
      border-radius: 8px;
    }
    /* 导航胶囊毛玻璃 */
    .nav-glass {
      background: rgba(255,255,255,0.8);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 8px 28px rgba(60,30,63,0.08);
    }
    /* 自定义卡片阴影 */
    .card-shadow {
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }
    .card-shadow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    /* 引号装饰 */
    .quote-mark {
      font-size: 6rem;
      line-height: 1;
      color: #C8923B;
      opacity: 0.25;
      position: absolute;
      top: -10px;
      left: 16px;
      font-family: Georgia, 'Times New Roman', serif;
    }
    /* 手风琴动画 */
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 12px;
      padding-bottom: 8px;
    }
    .faq-item.active .faq-indicator {
      transform: rotate(180deg);
      color: #C8923B;
    }
    /* 步骤连接线 */
    .step-line {
      width: 2px;
      background: linear-gradient(to bottom, #C8923B, #E5D9C4);
      position: absolute;
      left: 2.75rem;
      top: 3rem;
      bottom: 1.5rem;
      opacity: 0.4;
    }
    /* 背景叠加层 */
    .hero-overlay {
      background: linear-gradient(135deg, #3C1E3F 0%, rgba(42,21,46,0.85) 70%, rgba(60,30,63,0.7) 100%);
    }
    /* 移动端底部导航 */
    @media (max-width: 767px) {
      .desktop-nav {
        display: none;
      }
      .mobile-nav {
        display: flex;
        position: fixed;
        bottom: 16px;
        left: 16px;
        right: 16px;
        z-index: 50;
        background: rgba(255,255,255,0.9);
        backdrop-filter: blur(12px);
        border-radius: 40px;
        box-shadow: 0 8px 28px rgba(60,30,63,0.15);
        padding: 8px 12px;
        justify-content: space-around;
        align-items: center;
      }
      .mobile-nav a {
        font-size: 0.75rem;
        color: #3C1E3F;
        font-weight: 500;
        text-decoration: none;
        padding: 8px 6px;
        white-space: nowrap;
        transition: color 0.2s;
      }
      .mobile-nav a:hover {
        color: #C8923B;
      }
    }
    @media (min-width: 768px) {
      .mobile-nav {
        display: none;
      }
      .desktop-nav {
        display: flex;
      }
    }
    input, textarea {
      transition: border 0.2s, box-shadow 0.2s;
    }
    input:focus, textarea:focus {
      border-color: #C8923B;
      box-shadow: 0 0 0 3px rgba(200,146,59,0.25);
    }