/* 页面标题区 */
        .page-header {
            background: linear-gradient(rgba(30, 58, 138, 0.9), rgba(30, 58, 138, 0.8)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0 80px;
        }
        
        @media (max-width: 992px) {
            .page-header {
                padding: 80px 0 60px;
            }
        }
        
        .page-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        @media (max-width: 768px) {
            .page-title {
                font-size: 2.2rem;
            }
        }
        
        .page-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 面包屑导航 */
        .breadcrumb {
            background-color: transparent;
            padding: 0;
            margin-bottom: 2rem;
        }
        
        .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: white;
        }
        
        /* 关于我们内容区 */
        .about-section {
            padding: 5rem 0;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color:#1E3A8A;
        }
        
        @media (max-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        
        .section-subtitle {
            font-size: 1.2rem;
            color: #6B7280;
            margin-bottom: 3rem;
            max-width: 700px;
        }
        
        /* 公司介绍卡片 */
        .intro-card {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
            height: 100%;
        }
        
        .intro-img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }
        
        .intro-body {
            padding: 2.5rem;
        }
        
        /* 发展历程时间轴 */
        .timeline {
            position: relative;
            padding: 3rem 0;
        }
        
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background-color: #0EA5E9;
        }
        
        @media (max-width: 768px) {
            .timeline::before {
                left: 30px;
            }
        }
        
        .timeline-item {
            position: relative;
            margin-bottom: 4rem;
        }
        
        .timeline-item:nth-child(odd) .timeline-content {
            margin-left: calc(50% + 2rem);
        }
        
        .timeline-item:nth-child(even) .timeline-content {
            margin-right: calc(50% + 2rem);
            text-align: right;
        }
        
        @media (max-width: 768px) {
            .timeline-item:nth-child(odd) .timeline-content,
            .timeline-item:nth-child(even) .timeline-content {
                margin-left: 60px;
                margin-right: 0;
                text-align: left;
            }
        }
        
        .timeline-dot {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 20px;
            background-color: #0EA5E9;
            border-radius: 50%;
            z-index: 1;
        }
        
        @media (max-width: 768px) {
            .timeline-dot {
                left: 30px;
            }
        }
        
        .timeline-content {
            background-color: white;
            border-radius: 10px;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            border: 1px solid #E5E7EB;
        }
        
        .timeline-year {
            font-size: 1.5rem;
            font-weight: 700;
            color:#1E3A8A;
            margin-bottom: 0.5rem;
        }
        
        /* 团队介绍 */
        .team-section {
            background-color: #F9FAFB;
            padding: 5rem 0;
        }
        
        .team-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
            height: 100%;
        }
        
        .team-card:hover {
            transform: translateY(-10px);
        }
        
        .team-img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        
        .team-body {
            padding: 1.5rem;
        }
        
        .team-name {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        
        .team-position {
            color: #0EA5E9;
            font-weight: 500;
            margin-bottom: 1rem;
        }
        
        .team-desc {
            color: #6B7280;
            font-size: 0.9rem;
        }
        
        /* 资质证书 */
        .cert-section {
            padding: 5rem 0;
        }
        
        .cert-card {
            border: 1px solid #E5E7EB;
            border-radius: 10px;
            padding: 1.5rem;
            height: 100%;
            text-align: center;
            transition: transform 0.3s;
        }
        
        .cert-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
        }
        
        .cert-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(14, 165, 233, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: #0EA5E9;
            font-size: 2rem;
        }
        
        /* 价值观 */
        .values-section {
            background-color:#1E3A8A;
            color: white;
            padding: 5rem 0;
        }
        
        .values-card {
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 2rem;
            height: 100%;
            backdrop-filter: blur(5px);
        }
        
        .values-icon {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: #0EA5E9;
        }
        
        /* 服务承诺 */
        .promise-section {
            padding: 5rem 0;
        }
        
        .promise-card {
            border: 1px solid #E5E7EB;
            border-radius: 10px;
            padding: 2rem;
            height: 100%;
            transition: all 0.3s;
        }
        
        .promise-card:hover {
            border-color: #0EA5E9;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
        }
        
        .promise-number {
            font-size: 3rem;
            font-weight: 700;
            color: #0EA5E9;
            line-height: 1;
            margin-bottom: 1rem;
        }
        
        /* CTA区域 */
        .cta-section {
            background-color: #F9FAFB;
            padding: 4rem 0;
            border-radius: 15px;
        }
        
        .cta-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        /* 按钮样式 */
        .btn-primary {
            background-color:#1E3A8A;
            border-color:#1E3A8A;
            padding: 0.75rem 2rem;
            font-weight: 500;
            border-radius: 8px;
        }
        
        .btn-primary:hover {
            background-color: #1e3a8ae6;
            border-color: #1e3a8ae6;
        }
        
        .btn-outline-primary {
            border-radius: 8px;
            padding: 0.75rem 2rem;
            font-weight: 500;
        }
        
       
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }
        
        /* 面包屑导航链接悬停效果 */
        .breadcrumb-item a:hover {
            color: white;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .timeline-content {
                padding: 1rem;
            }
            
            .intro-body {
                padding: 1.5rem;
            }
            
            .team-img {
                height: 220px;
            }
        }