/* 关于我们横幅 */
        .about-banner {
            position: relative;
            height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            margin-top: 80px;
            background: var(--gradient);
            color: var(--white);
            overflow: hidden;
        }
        
        .about-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/template/jia/images/1.jpg') center/cover no-repeat;
            opacity: 0.1;
            z-index: 1;
        }
        
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            padding: 0 20px;
        }
        
        .banner-content h1 {
            font-size: 4rem;
            margin-bottom: 25px;
            font-weight: 800;
            text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            animation: fadeInUp 1s ease;
        }
        
        .banner-content p {
            font-size: 1.5rem;
            margin-bottom: 40px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            animation: fadeInUp 1s ease 0.3s both;
        }
        
        /* 广告横幅 */
        .ad-banner {
            background: var(--gradient-light);
            color: var(--white);
            padding: 30px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .ad-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }
        
        .ad-content {
            position: relative;
            z-index: 2;
        }
        
        .ad-content h3 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .ad-content p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* 公司简介 */
        .company-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
        }
        
        .intro-text h3 {
            font-size: 2.5rem;
            margin-bottom: 25px;
            color: var(--dark);
            font-weight: 700;
            line-height: 1.3;
        }
        
        .intro-text p {
            margin-bottom: 25px;
            font-size: 1.1rem;
        }
        
        .intro-image {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transform: perspective(1000px) rotateY(-5deg);
            transition: var(--transition);
        }
        
        .intro-image:hover {
            transform: perspective(1000px) rotateY(0deg);
        }
        
        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .intro-image:hover img {
            transform: scale(1.05);
        }
        
        /* 发展历程 */
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--primary-light);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
            border-radius: 3px;
        }
        
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            animation: fadeIn 1s ease both;
        }
        
        .timeline-item:nth-child(odd) {
            left: 0;
        }
        
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        
        .timeline-content {
            padding: 20px 30px;
            background-color: var(--white);
            position: relative;
            border-radius: 10px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .timeline-content:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        
        .timeline-item:nth-child(odd) .timeline-content::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: var(--white);
            top: 30px;
            border-radius: 50%;
            z-index: 1;
            box-shadow: 0 0 0 4px var(--primary-light);
        }
        
        .timeline-item:nth-child(even) .timeline-content::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            left: -10px;
            background-color: var(--white);
            top: 30px;
            border-radius: 50%;
            z-index: 1;
            box-shadow: 0 0 0 4px var(--primary-light);
        }
        
        .timeline-year {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        /* 团队介绍 */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }
        
        .team-card {
            background: var(--white);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        
        .team-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }
        
        .team-image {
            height: 300px;
            overflow: hidden;
        }
        
        .team-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .team-card:hover .team-image img {
            transform: scale(1.1);
        }
        
        .team-info {
            padding: 25px;
        }
        
        .team-info h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
            color: var(--dark);
            font-weight: 700;
        }
        
        .team-info .position {
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 15px;
            display: block;
        }
        
        .team-info p {
            color: #64748b;
            margin-bottom: 20px;
        }
        
        /* 服务流程 */
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 70px;
            flex-wrap: wrap;
        }
        
        .process-steps::before {
            content: '';
            position: absolute;
            top: 60px;
            left: 0;
            width: 100%;
            height: 3px;
            background: #e2e8f0;
            z-index: 1;
        }
        
        .step {
            text-align: center;
            position: relative;
            z-index: 2;
            flex: 1;
            min-width: 200px;
            margin-bottom: 40px;
            animation: float 3s ease-in-out infinite;
        }
        
        .step:nth-child(2) {
            animation-delay: 0.5s;
        }
        
        .step:nth-child(3) {
            animation-delay: 1s;
        }
        
        .step:nth-child(4) {
            animation-delay: 1.5s;
        }
        
        .step-icon {
            width: 120px;
            height: 120px;
            background: var(--gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--white);
            font-size: 2.5rem;
            position: relative;
            animation: pulse 3s infinite;
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
        }
        
        .step h4 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
            font-weight: 700;
        }
        
        .step p {
            color: #64748b;
        }
        
        /* 创意优势板块样式 */
        .advantages {
            background: var(--light);
            position: relative;
            overflow: hidden;
        }
        
        .advantages::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: var(--gradient);
            border-radius: 50%;
            opacity: 0.05;
            z-index: 0;
        }
        
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 35px;
            position: relative;
            z-index: 1;
        }
        
        .advantage-card {
            text-align: center;
            padding: 40px 25px;
            background: var(--white);
            border-radius: 15px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient);
            opacity: 0;
            transition: var(--transition);
            z-index: -1;
        }
        
        .advantage-card:hover {
            transform: translateY(-10px) scale(1.03);
            color: var(--white);
            box-shadow: var(--shadow-lg);
        }
        
        .advantage-card:hover::before {
            opacity: 1;
        }
        
        .advantage-card:hover h3,
        .advantage-card:hover p {
            color: var(--white);
        }
        
        .advantage-icon {
            width: 80px;
            height: 80px;
            background: var(--gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--white);
            font-size: 2.2rem;
            transition: var(--transition);
        }
        
        .advantage-card:hover .advantage-icon {
            background: rgba(255, 255, 255, 0.2);
            transform: rotate(360deg);
        }
        
        .advantage-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark);
            font-weight: 700;
            transition: var(--transition);
        }
        
        .advantage-card p {
            transition: var(--transition);
        }
        
       
        /* 动画定义 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.5);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(37, 99, 235, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
            100% {
                transform: translateY(0);
            }
        }
        
        @keyframes rotate {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .company-intro {
                grid-template-columns: 1fr;
            }
            
            .intro-image {
                order: -1;
                max-width: 600px;
                margin: 0 auto;
            }
        }
        
        @media (max-width: 992px) {
            .process-steps {
                flex-direction: column;
                gap: 50px;
            }
            
            .process-steps::before {
                display: none;
            }
            
            .step {
                display: flex;
                align-items: center;
                text-align: left;
                min-width: 100%;
            }
            
            .step-icon {
                margin: 0 25px 0 0;
                flex-shrink: 0;
                width: 100px;
                height: 100px;
            }
            
            .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-content::after,
            .timeline-item:nth-child(even) .timeline-content::after {
                left: 21px;
                right: auto;
            }
            
            .nav-contact {
                display: none;
            }
            
            .friend-links ul {
                flex-direction: column;
                gap: 10px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: var(--white);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 60px;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-menu li {
                margin: 20px 0;
            }
            
            .nav-toggle {
                display: block;
            }
            
            .banner-content h1 {
                font-size: 2.5rem;
            }
            
            .banner-content p {
                font-size: 1.2rem;
            }
            
            .section-title h2 {
                font-size: 2.5rem;
            }
            
            .section {
                padding: 80px 0;
            }
        }
        
        @media (max-width: 576px) {
            .section {
                padding: 60px 0;
            }
            
            .advantage-grid, .team-grid {
                grid-template-columns: 1fr;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }