/* 关于我们页面特有样式 */
        .page-header {
            background: linear-gradient(135deg, #0a2e5c 0%, #1a4b8c 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
            margin-bottom: 60px;
        }
        .page-header h1 {
            font-size: 42px;
            margin-bottom: 20px;
            font-weight: 700;
        }
        .page-header p {
            font-size: 18px;
            max-width: 800px;
            margin: 0 auto;
            opacity: 0.9;
        }
        .about-section {
            padding: 60px 0;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 40px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 32px;
            color: #0a2e5c;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: #4dabf7;
        }
        .section-title p {
            color: #666;
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-text p {
            margin-bottom: 20px;
            line-height: 1.8;
            color: #555;
        }
        .about-image {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        .about-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .mission-vision {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }
        .mission-card, .vision-card {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 8px;
            border-left: 4px solid #4dabf7;
        }
        .mission-card h3, .vision-card h3 {
            color: #0a2e5c;
            margin-bottom: 15px;
            font-size: 22px;
        }
        .mission-card p, .vision-card p {
            color: #666;
            line-height: 1.8;
        }
        .history-timeline {
            position: relative;
            padding: 40px 0;
            max-width: 800px;
            margin: 0 auto;
        }
        .history-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background: #4dabf7;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            width: 100%;
        }
        .timeline-item:nth-child(odd) {
            padding-right: 50%;
            text-align: right;
        }
        .timeline-item:nth-child(even) {
            padding-left: 50%;
            text-align: left;
        }
        .timeline-content {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            position: relative;
        }
        .timeline-content::after {
            content: '';
            position: absolute;
            top: 20px;
            width: 20px;
            height: 20px;
            background: #4dabf7;
            border-radius: 50%;
        }
        .timeline-item:nth-child(odd) .timeline-content::after {
            right: -60px;
        }
        .timeline-item:nth-child(even) .timeline-content::after {
            left: -60px;
        }
        .timeline-year {
            font-weight: 700;
            color: #4dabf7;
            margin-bottom: 10px;
        }
        .timeline-title {
            font-size: 20px;
            color: #0a2e5c;
            margin-bottom: 10px;
        }
        .timeline-desc {
            color: #666;
            line-height: 1.6;
        }
        .leadership-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        .leader-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        .leader-card:hover {
            transform: translateY(-10px);
        }
        .leader-image {
            height: 250px;
            overflow: hidden;
        }
        .leader-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .leader-card:hover .leader-image img {
            transform: scale(1.1);
        }
        .leader-info {
            padding: 20px;
            text-align: center;
        }
        .leader-name {
            font-size: 20px;
            color: #0a2e5c;
            margin-bottom: 5px;
        }
        .leader-position {
            color: #4dabf7;
            font-weight: 500;
            margin-bottom: 10px;
        }
        .leader-bio {
            color: #666;
            line-height: 1.6;
            font-size: 14px;
        }
        .cta-section {
            background: linear-gradient(135deg, #0a2e5c 0%, #1a4b8c 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
            border-radius: 8px;
            margin-bottom: 40px;
        }
        .cta-section h2 {
            font-size: 32px;
            margin-bottom: 20px;
        }
        .cta-section p {
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
            line-height: 1.6;
        }
        .cta-btn {
            display: inline-block;
            background: #4dabf7;
            color: white;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            transition: background 0.3s;
            border: none;
            cursor: pointer;
            font-size: 16px;
        }
        .cta-btn:hover {
            background: #339af0;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .about-content {
                grid-template-columns: 1fr;
            }
            .mission-vision {
                grid-template-columns: 1fr;
            }
            .timeline-item:nth-child(odd),
            .timeline-item:nth-child(even) {
                padding: 0;
                text-align: left;
            }
            .timeline-item:nth-child(odd) .timeline-content::after,
            .timeline-item:nth-child(even) .timeline-content::after {
                left: -30px;
                right: auto;
            }
            .history-timeline::before {
                left: 30px;
            }
        }
        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 32px;
            }
            .section-title h2 {
                font-size: 28px;
            }
            .nav-menu {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: #0a2e5c;
                flex-direction: column;
                padding: 100px 20px 20px;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                overflow-y: auto;
                z-index: 999;
                gap: 0;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .nav-menu a {
                display: block;
                padding: 15px 0;
                font-size: 18px;
                width: 100%;
            }
            .nav-menu a.active::after {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                order: 3;
                margin-left: 15px;
            }
            .header-actions {
                order: 2;
                margin-left: auto;
            }
            .logo {
                order: 1;
            }
        }
        @media (max-width: 576px) {
            .page-header {
                padding: 60px 0;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .section-title h2 {
                font-size: 24px;
            }
            .leader-image {
                height: 200px;
            }
        }