/* 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;
        }
        
        /* 主要内容区 */
        .content-section {
            padding:3rem 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;
        }
        
        /* 筛选器 */
        .filter-section {
            background-color: #F9FAFB;
            border-radius: 10px;
            padding: 2rem;
            margin-bottom: 3rem;
        }
        
        .filter-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: #1E3A8A;
        }
        
        .filter-group {
            margin-bottom: 1.5rem;
        }
        
        .filter-label {
            font-weight: 600;
            margin-bottom: 0.8rem;
            display: block;
        }
        
        .filter-options {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .filter-btn {
            background-color: white;
            border: 1px solid #6B7280;
            color: #6B7280;
            padding: 0.5rem 1.2rem;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: all 0.2s;
            cursor: pointer;
        }
        
        .filter-btn:hover, .filter-btn.active {
            background-color: #1E3A8A;
            color: white;
            border-color: #1E3A8A;
        }
        
        .filter-reset {
            color: #0EA5E9;
            text-decoration: none;
            font-size: 0.9rem;
            margin-left: 1rem;
        }
        
        /* 案例统计 */
        .case-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 3rem;
            justify-content: center;
        }
        
        .stat-item {
            text-align: center;
            margin:2rem ;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1E3A8A;
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            color: #6B7280;
        }
        
        /* 案例卡片 */
        .case-card {
            border: 1px solid #6B7280;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s;
            height: 100%;
            background-color: white;
        }
        
        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            border-color: #0EA5E9;
        }
        
        .case-img-container {
            position: relative;
            height: 250px;
            overflow: hidden;
        }
        
        .case-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .case-card:hover .case-img {
            transform: scale(1.05);
        }
        
        .case-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background-color: #1E3A8A;
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .case-body {
            padding: 1.5rem;
        }
        
        .case-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }
        
        .case-title a {
            color: var(--dark-gray);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .case-title a:hover {
            color: #1E3A8A;
        }
        
        .case-excerpt {
            color: #6B7280;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        
        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #6B7280;
            font-size: 0.9rem;
            border-top: 1px solid #6B7280;
            padding-top: 1rem;
        }
        
        .case-type {
            display: flex;
            align-items: center;
        }
        
        .case-type i {
            margin-right: 0.3rem;
        }
        
        .case-view {
            color: #0EA5E9;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
        }
        
        .case-view:hover {
            color: #1E3A8A;
            text-decoration: underline;
        }
        
        /* 特色案例 */
        .featured-case {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            margin-bottom: 3rem;
        }
        
        .featured-img {
            width: 100%;
            height: 450px;
            object-fit: cover;
        }
        
        @media (max-width: 768px) {
            .featured-img {
                height: 300px;
            }
        }
        
        .featured-body {
            padding: 2.5rem;
            background-color: white;
        }
        
        .featured-tag {
            font-size: 0.9rem;
            font-weight: 600;
            color: white;
            background-color: #0EA5E9;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 1rem;
        }
        
        .featured-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }
        
        .featured-title a {
            color: var(--dark-gray);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .featured-title a:hover {
            color: #1E3A8A;
        }
        
        .featured-excerpt {
            font-size: 1.1rem;
            color: #6B7280;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        
        /* 侧边栏 */
        .sidebar {
            position: sticky;
            top: 100px;
        }
        
        .sidebar-card {
            background-color: white;
            border: 1px solid #6B7280;
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        
        .sidebar-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: #1E3A8A;
            padding-bottom: 0.8rem;
            border-bottom: 2px solid #F9FAFB;
        }
        
        .case-categories {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .category-item {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #6B7280;
        }
        
        .category-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .category-link {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--dark-gray);
            text-decoration: none;
            transition: color 0.2s;
        }
        
        .category-link:hover {
            color: #1E3A8A;
        }
        
        .category-count {
            background-color: #F9FAFB;
            color: #6B7280;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
            font-size: 0.8rem;
        }
        
        /* 分页 */
        .pagination {
            justify-content: center;
            margin-top: 3rem;
        }
        
        .page-link {
            color: #1E3A8A;
            border: 1px solid #6B7280;
            padding: 0.5rem 1rem;
            margin: 0 0.2rem;
            border-radius: 6px;
        }
        
        .page-link:hover {
            background-color: #F9FAFB;
            border-color: #0EA5E9;
        }
        
        .page-item.active .page-link {
            background-color: #1E3A8A;
            border-color: #1E3A8A;
            color: white;
        }
        
        /* 行业分类 */
        .industry-section {
            padding: 5rem 0;
            background-color: #F9FAFB;
        }
        
        .industry-card {
            background-color: white;
            border-radius: 10px;
            padding: 2rem;
            text-align: center;
            height: 100%;
            transition: transform 0.3s;
            border: 1px solid #6B7280;
        }
        
        .industry-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
        }
        
        .industry-icon {
            width: 70px;
            height: 70px;
            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: 1.8rem;
        }
        
        /* CTA区域 */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, #1E3A8A, #0EA5E9);
            color: white;
        }
        
        .cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: center;
        }
        
        /* 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-light {
            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;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .sidebar {
                margin-top: 3rem;
            }
            
            .featured-title {
                font-size: 1.7rem;
            }
            
            .filter-options {
                justify-content: center;
            }
        }