:root {
            --primary-color: #1a56db;
            --secondary-color: #f3f4f6;
            --accent-color: #f59e0b;
            --text-dark: #1f2937;
            --text-light: #6b7280;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: var(--text-dark);
            line-height: 1.8;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 86, 219, 0.9), rgba(26, 86, 219, 0.8)), url('https://images.unsplash.com/photo-1586023492125-27b2c045efd7?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
        }
        .service-card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        .emergency-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #dc2626;
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .nav-link {
            color: var(--text-dark) !important;
            font-weight: 500;
            padding: 10px 20px !important;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .navbar {
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            background: rgba(255,255,255,0.95) !important;
            backdrop-filter: blur(10px);
        }
        .contact-float {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: var(--secondary-color);
            border-radius: 6px;
            color: var(--text-dark);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #e5e7eb;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .article-content {
            font-size: 1.05rem;
            text-align: justify;
        }
        .article-content h3 {
            color: var(--primary-color);
            margin-top: 30px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e5e7eb;
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .price-table th {
            background-color: var(--primary-color);
            color: white;
        }
        .testimonial-card {
            border-left: 4px solid var(--primary-color);
            background: #f8fafc;
            padding: 25px;
            margin: 20px 0;
        }
        footer {
            background: #111827;
            color: #d1d5db;
        }
        @media (max-width: 768px) {
            .hero-section { padding: 80px 0; }
            .contact-float { bottom: 20px; right: 20px; }
            .display-4 { font-size: 2.2rem; }
        }