body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #333;
            line-height: 1.8;
        }
        .hero {
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            color: white;
            padding: 120px 0;
            text-align: center;
        }
        .section-title {
            border-left: 6px solid #2a5298;
            padding-left: 20px;
            margin-bottom: 40px;
            font-weight: 700;
            color: #1e3c72;
        }
        .card-hover {
            transition: transform 0.3s, box-shadow 0.3s;
            border: none;
            border-radius: 12px;
            overflow: hidden;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .friendlink a.flink {
            display: inline-block;
            margin: 8px;
            padding: 12px 20px;
            background: #f1f8ff;
            border: 1px solid #cce0ff;
            border-radius: 8px;
            text-decoration: none;
            color: #1e3c72;
            font-weight: 500;
            transition: all 0.3s;
        }
        .friendlink a.flink:hover {
            background: #2a5298;
            color: white;
            border-color: #2a5298;
        }
        .navbar {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        footer {
            background: #222;
            color: #ddd;
        }
        .table-custom {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .img-fluid-rounded {
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        .btn-custom {
            background: #2a5298;
            color: white;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: background 0.3s;
        }
        .btn-custom:hover {
            background: #1e3c72;
            color: white;
        }
        @media (max-width: 768px) {
            .hero {
                padding: 80px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }