:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --accent-color: #198754;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --hospital-blue: #1a73e8;
            --hospital-green: #28a745;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--hospital-blue) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(13, 110, 253, 0.85), rgba(25, 135, 84, 0.8)), url('https://images.unsplash.com/photo-1559757148-5c350d0d3c56?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            margin-top: 76px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 3px;
            background-color: var(--hospital-blue);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
        }
        .service-icon {
            font-size: 2.5rem;
            color: var(--hospital-blue);
            margin-bottom: 20px;
        }
        .doctor-card {
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s;
        }
        .doctor-card:hover {
            transform: translateY(-5px);
        }
        .doctor-img {
            height: 280px;
            object-fit: cover;
            object-position: top;
        }
        .news-card {
            border-left: 4px solid var(--hospital-blue);
            transition: border-color 0.3s;
        }
        .news-card:hover {
            border-left-color: var(--hospital-green);
        }
        .btn-hospital {
            background-color: var(--hospital-blue);
            color: white;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 500;
            transition: all 0.3s;
            border: none;
        }
        .btn-hospital:hover {
            background-color: #0b5ed7;
            color: white;
            transform: translateY(-2px);
        }
        .contact-info {
            background-color: #f8f9fa;
            border-radius: 10px;
            padding: 30px;
            height: 100%;
        }
        .contact-icon {
            font-size: 1.8rem;
            color: var(--hospital-blue);
            margin-bottom: 15px;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background-color: #f1f5f9;
            border-radius: 5px;
            color: #334155;
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #e2e8f0;
        }
        .flink:hover {
            background-color: var(--hospital-blue);
            color: white;
            border-color: var(--hospital-blue);
            transform: translateY(-3px);
        }
        footer {
            background-color: #1e293b;
            color: #cbd5e1;
        }
        .footer-link {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-link:hover {
            color: white;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--hospital-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: #0b5ed7;
            color: white;
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--hospital-blue);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
                margin-top: 66px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .doctor-img {
                height: 220px;
            }
        }