/* ====== 关于我们页面独享CSS ====== */
        
        /* 页面头部区域 */
        .about-header {
            margin-top: 100px;
            padding: 120px 0 100px;
            background: linear-gradient(135deg, rgba(10, 36, 99, 0.85) 0%, rgba(62, 102, 128, 0.85) 100%), url('/template/jia/images/10.jpg');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .about-header::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.1);
        }

        .about-header::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }

        .about-header-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .brand-name {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
            animation: fadeDown 0.8s ease;
        }

        @keyframes fadeDown {
            0% {
                opacity: 0;
                transform: translateY(-30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .brand-slogan {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin-bottom: 30px;
            font-weight: 600;
            animation: fadeUp 0.8s ease 0.3s both;
        }

        @keyframes fadeUp {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .brand-description {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
            line-height: 1.7;
            animation: fadeUp 0.8s ease 0.5s both;
        }

        /* 概述区域 */
        .overview-section {
            background-color: var(--light-color);
            position: relative;
            overflow: hidden;
        }

        .overview-section::before {
            content: '';
            position: absolute;
            top: 100px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.05);
        }

        .overview-content {
            position: relative;
            z-index: 2;
            max-width: 1000px;
            margin: 0 auto;
        }

        .overview-content p {
            font-size: 1.15rem;
            line-height: 1.8;
            color: var(--dark-color);
            margin-bottom: 25px;
            text-align: justify;
        }

        .overview-highlight {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 40px;
            margin-top: 40px;
            box-shadow: var(--shadow);
            border-left: 5px solid var(--secondary-color);
        }

        .overview-highlight h3 {
            font-size: 1.6rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .overview-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .stat-box {
            text-align: center;
            padding: 30px 20px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(30px);
        }

        .stat-box.animate {
            animation: statAppear 0.8s ease forwards;
        }

        @keyframes statAppear {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .stat-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
            margin-bottom: 15px;
        }

        .stat-text {
            font-size: 1.1rem;
            color: var(--gray-color);
            font-weight: 600;
        }

        /* 发展历程时间轴 */
        .timeline-section {
            position: relative;
            overflow: hidden;
        }

        .timeline-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(10, 36, 99, 0.05);
        }

        .timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--light-gray);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
            border-radius: 3px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            opacity: 0;
            transform: translateY(30px);
        }

        .timeline-item.animate {
            animation: timelineAppear 0.8s ease forwards;
        }

        @keyframes timelineAppear {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .timeline-item:nth-child(odd) {
            left: 0;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
        }

        .timeline-content {
            padding: 30px;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            position: relative;
            transition: var(--transition);
        }

        .timeline-content:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }

        .timeline-year {
            position: absolute;
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            font-size: 1.4rem;
            z-index: 1;
            transition: var(--transition);
        }

        .timeline-item:nth-child(odd) .timeline-year {
            right: -50px;
            top: 20px;
        }

        .timeline-item:nth-child(even) .timeline-year {
            left: -50px;
            top: 20px;
        }

        .timeline-content:hover .timeline-year {
            background: linear-gradient(135deg, var(--secondary-color), #e6c34f);
            transform: scale(1.1);
        }

        .timeline-content h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .timeline-content p {
            color: var(--gray-color);
            line-height: 1.7;
        }

        /* 核心业务体系 */
        .business-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            position: relative;
            overflow: hidden;
        }

        .business-section::after {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.1);
        }

        .business-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 50px;
            flex-wrap: wrap;
            gap: 15px;
            position: relative;
            z-index: 2;
        }

        .business-tab {
            padding: 15px 30px;
            background-color: white;
            border-radius: var(--border-radius);
            font-weight: 600;
            color: var(--primary-color);
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow);
            border: 2px solid transparent;
        }

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

        .business-tab.active {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }

        .business-content {
            position: relative;
            z-index: 2;
        }

        .business-panel {
            display: none;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .business-panel.active {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }

        .business-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }

        .business-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 40px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .business-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .business-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        }

        .business-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(10, 36, 99, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            font-size: 2.2rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

        .business-card:hover .business-icon {
            background-color: var(--primary-color);
            color: white;
            transform: rotate(10deg) scale(1.1);
        }

        .business-card h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .business-card p {
            color: var(--gray-color);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .business-features {
            margin-top: 20px;
        }

        .business-features li {
            margin-bottom: 10px;
            color: var(--accent-color);
            position: relative;
            padding-left: 25px;
        }

        .business-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary-color);
            font-weight: bold;
        }

        /* 专业化子公司矩阵 */
        .subsidiaries-section {
            position: relative;
            overflow: hidden;
        }

        .subsidiaries-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(10, 36, 99, 0.05);
        }

        .subsidiaries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 2;
        }

        .subsidiary-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 35px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            opacity: 0;
            transform: translateY(30px);
        }

        .subsidiary-card.animate {
            animation: cardAppear 0.8s ease forwards;
        }

        @keyframes cardAppear {
            0% {
                opacity: 0;
                transform: translateY(30px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .subsidiary-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .subsidiary-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 1.8rem;
            color: white;
            transition: var(--transition);
        }

        .subsidiary-card:hover .subsidiary-icon {
            background: linear-gradient(135deg, var(--secondary-color), #e6c34f);
            transform: scale(1.1);
        }

        .subsidiary-card h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .subsidiary-card p {
            color: var(--gray-color);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* 技术驱动与质量风控 */
        .tech-section {
            background-color: var(--light-color);
            position: relative;
            overflow: hidden;
        }

        .tech-section::before {
            content: '';
            position: absolute;
            top: 100px;
            left: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.05);
        }

        .tech-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .tech-text h3 {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            font-weight: 700;
        }

        .tech-text p {
            margin-bottom: 20px;
            color: var(--gray-color);
            line-height: 1.7;
        }

        .tech-features {
            margin-top: 30px;
        }

        .tech-feature {
            display: flex;
            align-items: flex-start;
            margin-bottom: 25px;
        }

        .tech-feature-icon {
            width: 60px;
            height: 60px;
            background-color: rgba(10, 36, 99, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            flex-shrink: 0;
            color: var(--primary-color);
            font-size: 1.5rem;
            transition: var(--transition);
        }

        .tech-feature:hover .tech-feature-icon {
            background-color: var(--primary-color);
            color: white;
        }

        .tech-feature-text h4 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .tech-feature-text p {
            margin-bottom: 0;
            font-size: 1rem;
        }

        .tech-visual {
            text-align: center;
        }

        .tech-visual-icon {
            width: 300px;
            height: 300px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            font-size: 8rem;
            color: white;
            position: relative;
            animation: pulse 4s infinite ease-in-out;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .tech-visual-icon::after {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 2px dashed rgba(10, 36, 99, 0.2);
            animation: rotate 20s infinite linear;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* 战略合作伙伴 */
        .partners-section {
            position: relative;
            overflow: hidden;
        }

        .partners-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(10, 36, 99, 0.05);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 2;
        }

        .partner-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 40px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }

        .partner-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .partner-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(10, 36, 99, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 2.2rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

        .partner-card:hover .partner-icon {
            background-color: var(--primary-color);
            color: white;
            transform: scale(1.1);
        }

        .partner-card h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .partner-card p {
            color: var(--gray-color);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* 社会贡献与品牌荣誉 */
        .honor-section {
            background: linear-gradient(135deg, rgba(10, 36, 99, 0.9) 0%, rgba(62, 102, 128, 0.9) 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }

        .honor-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.1);
        }

        .honor-container {
            position: relative;
            z-index: 2;
            max-width: 1000px;
            margin: 0 auto;
        }

        .honor-container h2 {
            color: white;
        }

        .honor-container .section-title p {
            color: rgba(255, 255, 255, 0.8);
        }

        .honor-container .section-title::after {
            background: var(--secondary-color);
        }

        .honor-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .honor-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: var(--border-radius);
            padding: 40px 30px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .honor-card:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-10px);
        }

        .honor-icon {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 25px;
        }

        .honor-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .honor-card p {
            opacity: 0.9;
            line-height: 1.7;
        }

        /* 愿景与展望 */
        .vision-section {
            position: relative;
            overflow: hidden;
        }

        .vision-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 175, 55, 0.05);
        }

        .vision-content {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .vision-content h3 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 30px;
            font-weight: 700;
        }

        .vision-content p {
            font-size: 1.2rem;
            line-height: 1.8;
            color: var(--gray-color);
            margin-bottom: 25px;
        }

        .vision-highlight {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 50px;
            border-radius: var(--border-radius);
            margin-top: 50px;
            box-shadow: 0 15px 40px rgba(10, 36, 99, 0.2);
            position: relative;
            overflow: hidden;
        }

        .vision-highlight::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .vision-highlight h4 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            font-weight: 700;
            position: relative;
            z-index: 2;
        }

        .vision-highlight p {
            font-size: 1.2rem;
            opacity: 0.9;
            position: relative;
            z-index: 2;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .brand-name {
                font-size: 2.8rem;
            }
            
            .brand-slogan {
                font-size: 1.5rem;
            }
            
            .timeline::after {
                left: 31px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            
            .timeline-item:nth-child(even) {
                left: 0;
            }
            
            .timeline-item:nth-child(odd) .timeline-year,
            .timeline-item:nth-child(even) .timeline-year {
                left: 0;
                right: auto;
                top: 20px;
            }
            
            .business-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            
            .tech-content {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background-color: white;
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
                padding: 20px 0;
                z-index: 999;
            }
            
            .nav-menu.active {
                right: 0;
            }
            
            .nav-menu li {
                margin: 15px 0;
            }
            
            .brand-name {
                font-size: 2.3rem;
            }
            
            .brand-slogan {
                font-size: 1.3rem;
            }
            
            .business-tabs {
                flex-direction: column;
                align-items: center;
            }
            
            .business-grid {
                grid-template-columns: 1fr;
            }
            
            .subsidiaries-grid {
                grid-template-columns: 1fr;
            }
            
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .honor-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            section {
                padding: 60px 0;
            }
            
            .about-header {
                padding: 80px 0 60px;
            }
            
            .brand-name {
                font-size: 2rem;
            }
            
            .brand-description {
                font-size: 1.1rem;
            }
            
            .section-title h2 {
                font-size: 1.9rem;
            }
            
            .overview-stats {
                grid-template-columns: 1fr;
            }
            
            .stat-number {
                font-size: 2.5rem;
            }
            
            .timeline-item {
                padding-left: 50px;
            }
            
            .timeline-year {
                width: 80px;
                height: 80px;
                font-size: 1.2rem;
            }
            
            .timeline-item:nth-child(odd) .timeline-year,
            .timeline-item:nth-child(even) .timeline-year {
                left: -40px;
            }
            
            .tech-visual-icon {
                width: 200px;
                height: 200px;
                font-size: 5rem;
            }
            
            .tech-visual-icon::after {
                width: 220px;
                height: 220px;
            }
            
            .partners-grid {
                grid-template-columns: 1fr;
            }
            
            .vision-highlight {
                padding: 30px 20px;
            }
        }