:root {
            --primary-color: #1a5fb4;
            --secondary-color: #e6a100;
            --dark-color: #1e1e1e;
            --light-color: #f8f9fa;
            --success-color: #26a269;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
            background-color: #fefefe;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem !important;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-link:hover {
            background-color: rgba(26, 95, 180, 0.1);
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(26, 95, 180, 0.9) 0%, rgba(30, 30, 30, 0.9) 100%), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
            color: white;
            padding: 120px 0 80px;
            border-radius: 0 0 30px 30px;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .feature-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px 25px;
            height: 100%;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            border-top: 4px solid transparent;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            border-top-color: var(--primary-color);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        .icon-wrapper {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(26, 95, 180, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        .stats-section {
            background-color: var(--light-color);
            padding: 80px 0;
        }
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
            margin-bottom: 10px;
        }
        .news-card {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
            background: white;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }
        .news-img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .news-body {
            padding: 25px;
        }
        .news-date {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        .news-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--dark-color);
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: #155aa0;
            border-color: #155aa0;
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(26, 95, 180, 0.3);
        }
        .btn-secondary-custom {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: white;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-secondary-custom:hover {
            background-color: #d29100;
            border-color: #d29100;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(230, 161, 0, 0.3);
        }
        .footer {
            background-color: var(--dark-color);
            color: #ccc;
            padding: 70px 0 30px;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-title {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--secondary-color);
        }
        .copyright {
            border-top: 1px solid #444;
            padding-top: 20px;
            margin-top: 50px;
            text-align: center;
            font-size: 0.9rem;
            color: #aaa;
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 12px 25px;
            margin: 8px;
            border-radius: 50px;
            color: #555;
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            text-decoration: none !important;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(26, 95, 180, 0.2);
        }
        .flink i {
            margin-right: 8px;
        }
        .analysis-process {
            position: relative;
            padding-left: 30px;
            margin-bottom: 25px;
        }
        .analysis-process:before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--secondary-color);
        }
        .process-line {
            position: absolute;
            left: 7px;
            top: 25px;
            bottom: -25px;
            width: 1px;
            background-color: #ddd;
        }
        .process-item:last-child .process-line {
            display: none;
        }
        .accordion-button {
            font-weight: 600;
            background-color: rgba(26, 95, 180, 0.05);
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary-color);
            background-color: rgba(26, 95, 180, 0.1);
        }
        .team-card {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--border-radius);
            background: white;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
        }
        .team-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
        }
        .team-img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid var(--light-color);
            margin: 0 auto 20px;
        }
        .team-name {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 5px;
            color: var(--dark-color);
        }
        .team-title {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 15px;
            font-size: 1rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
            text-decoration: none;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: #155aa0;
            color: white;
            transform: translateY(-5px);
        }