/* ===== 关于我们页面独享CSS ===== */
        .page-header {
            background-color: var(--primary-color);
            color: white;
            padding: 150px 0 80px;
            text-align: center;
            margin-top: 70px;
        }

        .page-header h1 {
            font-size: 42px;
            margin-bottom: 20px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
        }

        .page-header p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }

        .about-section {
            padding: 100px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
        }

        .section-title h2 {
            font-size: 36px;
            color: var(--primary-color);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary-color);
        }

        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-bottom: 80px;
        }

        .about-text h3 {
            color: var(--primary-color);
            font-size: 28px;
            margin-bottom: 20px;
        }

        .about-text p {
            margin-bottom: 20px;
            color: #555;
            line-height: 1.8;
        }

        .highlight {
            background-color: var(--primary-color);
            color: white;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            margin-top: 30px;
        }

        .highlight h4 {
            color: var(--secondary-color);
            font-size: 24px;
            margin-bottom: 10px;
        }

        .about-image {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
            opacity: 0;
            transform: translateX(50px);
            transition: transform 1s ease, opacity 1s ease;
        }

        .about-image.animate {
            opacity: 1;
            transform: translateX(0);
        }

        .about-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .about-image:hover img {
            transform: scale(1.05);
        }

        .mission-vision {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 80px;
        }

        .mission-card, .vision-card {
            background-color: white;
            padding: 40px 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .mission-card:hover, .vision-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .mission-card::before, .vision-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background-color: var(--secondary-color);
        }

        .card-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(10, 42, 90, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--primary-color);
            font-size: 32px;
        }

        .mission-card h3, .vision-card h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 24px;
        }

        .mission-card p, .vision-card p {
            color: #666;
            line-height: 1.7;
        }

        .stats-section {
            background-color: var(--primary-color);
            color: white;
            padding: 80px 0;
            margin-bottom: 80px;
        }

        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--secondary-color);
            margin-bottom: 10px;
            display: block;
        }

        .stat-text {
            font-size: 18px;
            color: white;
        }

        .cooperation {
            text-align: center;
            margin-bottom: 80px;
        }

        .cooperation-logos {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 40px;
        }

        .cooperation-logo {
            width: 150px;
            height: 80px;
            background-color: white;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow);
            padding: 15px;
            transition: var(--transition);
        }

        .cooperation-logo:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }

        .cooperation-logo img {
            max-width: 100%;
            max-height: 100%;
            filter: grayscale(100%);
            transition: var(--transition);
        }

        .cooperation-logo:hover img {
            filter: grayscale(0%);
        }

        .values-section {
            margin-bottom: 80px;
        }

        .values-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .value-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
        }

        .value-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .value-icon {
            width: 70px;
            height: 70px;
            background-color: rgba(10, 42, 90, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-color);
            font-size: 28px;
        }

        .value-card h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            font-size: 20px;
        }

        .value-card p {
            color: #666;
            line-height: 1.6;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .about-content {
                grid-template-columns: 1fr;
            }
            
            .stats-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .navbar {
                flex-wrap: wrap;
            }
            
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                margin-top: 20px;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 10px 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .page-header h1 {
                font-size: 36px;
            }
            
            .page-header p {
                font-size: 16px;
            }
            
            .section-title h2 {
                font-size: 30px;
            }
            
            .stats-container {
                grid-template-columns: 1fr;
            }
            
            .cooperation-logos {
                gap: 20px;
            }
            
            .cooperation-logo {
                width: 120px;
                height: 70px;
            }
        }

        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .about-section {
                padding: 60px 0;
            }
            
            .contact-phone {
                font-size: 16px;
            }
            
            .mission-vision, .values-grid {
                grid-template-columns: 1fr;
            }
        }