* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            background: #f9fafb;
            color: #1a1a2e;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 导航 */
        nav {
            background: #ffffff;
            border-bottom: 1px solid #e5e7eb;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
        }
        .nav-flex {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .nav-links {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .nav-links a {
            text-decoration: none;
            color: #374151;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
        }
        .nav-links a:hover {
            color: #3b82f6;
        }
        .nav-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1f2937;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        /* 通用 */
        h1 {
            font-size: 2.2rem;
            font-weight: 700;
            text-align: center;
            padding: 48px 0 16px;
            background: linear-gradient(135deg, #f0f4ff, #ffffff);
        }
        h2 {
            font-size: 1.6rem;
            font-weight: 600;
            margin-bottom: 24px;
            color: #111827;
            position: relative;
            display: inline-block;
        }
        h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 3px;
            background: #3b82f6;
            margin-top: 8px;
            border-radius: 2px;
        }
        .section {
            padding: 48px 0;
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .card {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 16px;
            padding: 24px;
            transition: box-shadow 0.2s;
        }
        .card:hover {
            box-shadow: 0 4px 20px rgba(0,0,0,0.04);
        }
        .card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 16px;
        }
        .badge {
            display: inline-block;
            background: #eff6ff;
            color: #3b82f6;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 8px;
        }
        .text-muted {
            color: #6b7280;
            font-size: 0.9rem;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .btn {
            display: inline-block;
            background: #3b82f6;
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.2s;
        }
        .btn:hover {
            background: #2563eb;
        }
        /* 新闻 */
        .news-list {
            display: grid;
            gap: 24px;
        }
        .news-item {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 16px;
            padding: 24px;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .news-item img {
            width: 180px;
            height: 120px;
            object-fit: cover;
            border-radius: 12px;
            flex-shrink: 0;
        }
        .news-content {
            flex: 1;
            min-width: 200px;
        }
        .news-content h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .news-content p {
            color: #4b5563;
            font-size: 0.95rem;
        }
        .news-date {
            font-size: 0.8rem;
            color: #9ca3af;
            margin-bottom: 6px;
        }
        /* FAQ */
        .faq-item {
            border-bottom: 1px solid #e5e7eb;
            padding: 20px 0;
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #1f2937;
        }
        .faq-item p {
            color: #4b5563;
        }
        /* 页脚 */
        footer {
            background: #ffffff;
            border-top: 1px solid #e5e7eb;
            padding: 40px 0 24px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-links a {
            display: block;
            color: #374151;
            text-decoration: none;
            margin-bottom: 8px;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: #3b82f6;
        }
        .footer-bottom {
            border-top: 1px solid #e5e7eb;
            padding-top: 20px;
            font-size: 0.85rem;
            color: #6b7280;
            text-align: center;
        }
        .footer-bottom a {
            color: #3b82f6;
            text-decoration: none;
        }
        .friend-links {
            margin: 16px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 16px;
        }
        .friend-links a {
            color: #374151;
            text-decoration: none;
            font-size: 0.9rem;
        }
        .friend-links a:hover {
            color: #3b82f6;
        }
        @media (max-width: 640px) {
            h1 { font-size: 1.6rem; padding: 32px 0 12px; }
            .nav-links { gap: 16px; }
            .news-item { flex-direction: column; }
            .news-item img { width: 100%; height: 180px; }
        }