:root {
            --primary-color: #1a237e;
            --secondary-color: #3949ab;
            --accent-color: #00acc1;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 35, 126, 0.85), rgba(57, 73, 171, 0.9)), url('https://images.unsplash.com/photo-1611974789855-9c2a0a7236a3?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            color: var(--primary-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 4px;
            background: var(--accent-color);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card, .news-card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .service-card:hover, .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .icon-wrapper {
            width: 80px;
            height: 80px;
            background: var(--light-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-color);
            font-size: 32px;
        }
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        .contact-info i {
            color: var(--accent-color);
            margin-right: 12px;
            font-size: 1.2rem;
        }
        footer {
            background-color: #1a1a2e;
            color: #ccc;
        }
        .footer-link {
            color: #aaa;
            text-decoration: none;
            transition: color 0.2s;
        }
        .footer-link:hover {
            color: white;
        }
        .friendlink {
            background-color: var(--light-bg);
            padding: 40px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 10px 20px;
            margin: 8px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 1px solid #e0e0e0;
        }
        .flink:hover {
            background: var(--secondary-color);
            color: white;
            transform: scale(1.05);
        }
        .stock-chart {
            background: #f1f8ff;
            border-radius: 12px;
            padding: 20px;
            border-left: 5px solid var(--accent-color);
        }
        .btn-custom {
            background-color: var(--primary-color);
            color: white;
            padding: 12px 28px;
            border-radius: 8px;
            border: none;
            font-weight: 600;
            transition: background 0.3s;
        }
        .btn-custom:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }