* { margin: 0; padding: 0; box-sizing: border-box; }
    body { background: #f8fafc; font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #1e293b; line-height: 1.6; }
    .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
    /* 导航 */
    header { background: #ffffff; border-bottom: 1px solid #e9edf2; padding: 16px 0; position: sticky; top: 0; z-index: 50; backdrop-filter: blur(6px); background: rgba(255,255,255,0.85); }
    .header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px 8px; }
    .logo-area { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 1.3rem; letter-spacing: -0.3px; }
    .logo-area span { color: #0a8fdc; }
    .nav-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
    .nav-links a { text-decoration: none; color: #334155; font-weight: 500; font-size: 0.95rem; padding: 4px 0; border-bottom: 2px solid transparent; transition: 0.2s; }
    .nav-links a:hover { border-bottom-color: #0a8fdc; color: #0a8fdc; }
    /* 通用卡片 */
    .card { background: #ffffff; border: 1px solid #eef2f6; border-radius: 24px; padding: 24px 28px; box-shadow: 0 4px 12px rgba(0,0,0,0.02); transition: all 0.2s; }
    .card:hover { box-shadow: 0 8px 20px rgba(0,0,0,0.04); }
    .section-title { font-size: 2rem; font-weight: 600; margin-bottom: 24px; letter-spacing: -0.5px; color: #0f172a; }
    .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
    img { max-width: 100%; height: auto; border-radius: 20px; display: block; background: #f1f5f9; }
    .img-cover { object-fit: cover; width: 100%; height: 200px; border-radius: 16px; }
    .btn { display: inline-block; background: #0a8fdc; color: white; padding: 12px 32px; border-radius: 60px; font-weight: 600; text-decoration: none; transition: 0.2s; border: none; cursor: pointer; }
    .btn:hover { background: #0678c0; transform: translateY(-2px); }
    .badge { background: #eef2f6; color: #1e293b; font-size: 0.75rem; padding: 4px 12px; border-radius: 40px; display: inline-block; }
    .flex-center { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
    .mb-32 { margin-bottom: 32px; }
    .mt-32 { margin-top: 32px; }
    /* footer */
    footer { background: #ffffff; border-top: 1px solid #e9edf2; padding: 40px 0 24px; margin-top: 60px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: center; margin: 20px 0 16px; }
    .footer-links a { color: #475569; text-decoration: none; font-size: 0.9rem; }
    .footer-links a:hover { text-decoration: underline; }
    .footer-meta { text-align: center; color: #64748b; font-size: 0.85rem; border-top: 1px solid #eef2f6; padding-top: 20px; margin-top: 12px; }
    /* 新闻卡片 */
    .news-item { border-bottom: 1px solid #eef2f6; padding: 20px 0; }
    .news-item:last-child { border-bottom: none; }
    .news-date { color: #64748b; font-size: 0.85rem; margin-bottom: 4px; }
    /* faq */
    .faq-item { border-bottom: 1px solid #eef2f6; padding: 20px 0; }
    .faq-q { font-weight: 600; font-size: 1.1rem; margin-bottom: 8px; cursor: pointer; }
    .faq-a { color: #334155; }
    /* 响应式 */
    @media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
    @media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .header-inner { flex-direction: column; align-items: start; } }
    hr { border: none; border-top: 1px solid #eef2f6; margin: 32px 0; }