/* faq 页面专属样式（自 faq/index.html 内联迁出） */
/* 页面整体渐变背景 */
    body {
      background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
      min-height: 100vh;
      padding-top: 80px;
    }

    .faq-card {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-radius: 24px;
      padding: 3.5rem 3rem;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.5);
    }

    .page-title {
      font-size: 2rem;
      font-weight: bold;
      color: var(--primary-blue);
      margin-bottom: 0.5rem;
      padding-bottom: 0.5rem;
      border-bottom: 3px solid var(--primary-blue);
      display: inline-block;
    }

    .page-lead {
      font-size: 1.05rem;
      color: #4a5568;
      line-height: 1.9;
      margin: 1.5rem 0 2.5rem;
    }

    /* 手风琴列表 */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .faq-item {
      border: 1px solid #e2e8f0;
      border-radius: 16px;
      background: #fff;
      overflow: hidden;
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .faq-item:hover {
      border-color: var(--primary-blue-light);
      box-shadow: 0 8px 24px rgba(0, 149, 255, 0.1);
    }

    .faq-item[open] {
      border-color: var(--primary-blue);
      box-shadow: 0 10px 30px rgba(0, 149, 255, 0.14);
    }

    .faq-question {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1.25rem 1.5rem;
      font-size: 1.1rem;
      font-weight: 700;
      color: #2d3748;
      transition: color 0.25s ease;
    }

    .faq-question h3 {
      margin: 0;
      flex: 1;
      font-size: inherit;
      font-weight: inherit;
      line-height: inherit;
      color: inherit;
    }

    .faq-question::-webkit-details-marker {
      display: none;
    }

    .faq-item[open] .faq-question {
      color: #1890ff;
    }

    .faq-q-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: var(--primary-blue);
      color: #fff;
      font-size: 0.85rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .faq-toggle {
      margin-left: auto;
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      position: relative;
      transition: transform 0.3s ease;
    }

    .faq-toggle::before,
    .faq-toggle::after {
      content: '';
      position: absolute;
      background: #1890ff;
      border-radius: 2px;
      top: 50%;
      left: 50%;
    }

    .faq-toggle::before {
      width: 14px;
      height: 2px;
      transform: translate(-50%, -50%);
    }

    .faq-toggle::after {
      width: 2px;
      height: 14px;
      transform: translate(-50%, -50%);
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .faq-item[open] .faq-toggle::after {
      transform: translate(-50%, -50%) rotate(90deg);
      opacity: 0;
    }

    .faq-answer {
      padding: 0 1.5rem 1.5rem 4rem;
      font-size: 1rem;
      line-height: 1.95;
      color: #4a5568;
    }

    @media (max-width: 768px) {
      .faq-card {
        padding: 2rem 1.25rem;
      }

      .faq-answer {
        padding-left: 1.5rem;
      }
    }

    /* 底部收尾：浅底内容条，不是 Hero */
    .faq-cta {
      margin-top: 2.5rem;
      padding: 1.5rem 1.75rem;
      border-radius: 16px;
      background: #f0f7ff;
      border: 1px solid rgba(24, 144, 255, 0.2);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem 2rem;
    }

    .faq-cta-copy {
      min-width: 0;
    }

    .faq-cta h2 {
      margin: 0 0 0.4rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: #003d7a;
      -webkit-text-fill-color: #003d7a;
      background: none;
      line-height: 1.35;
    }

    .faq-cta p {
      margin: 0;
      font-size: 0.95rem;
      line-height: 1.7;
      color: #4a5568;
      -webkit-text-fill-color: #4a5568;
      white-space: nowrap;
    }

    .faq-cta-actions {
      display: flex;
      gap: 0.75rem;
      flex-shrink: 0;
      flex-wrap: wrap;
    }

    .faq-cta a.primary,
    .faq-cta button.ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.7rem 1.35rem;
      border-radius: 10px;
      font-size: 0.9375rem;
      font-weight: 700;
      text-decoration: none;
      cursor: pointer;
      font-family: inherit;
      transition: box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
    }

    .faq-cta a.primary {
      background: var(--primary-blue);
      color: #fff;
      border: none;
    }

    .faq-cta button.ghost {
      background: #fff;
      color: var(--primary-blue-dark);
      border: 1px solid rgba(0, 149, 255, 0.45);
    }

    .faq-cta a.primary:hover,
    .faq-cta button.ghost:hover {
      box-shadow: 0 8px 18px rgba(9, 109, 217, 0.18);
    }

    .faq-cta a.primary:active,
    .faq-cta button.ghost:active {
      transform: translateY(1px);
    }

    @media (max-width: 1024px) {
      .faq-cta {
        flex-direction: column;
        align-items: stretch;
        text-align: left;
      }

      .faq-cta p {
        white-space: normal;
      }

      .faq-cta-actions {
        width: 100%;
      }

      .faq-cta a.primary,
      .faq-cta button.ghost {
        flex: 1;
      }
    }