/* 主内容区域 */
        .main {
            width: 100%;
            max-width: 1200px;
            margin: 120px auto 20px;
            padding: 0 15px;
        }
        
        .section-title {
            font-size: 24px;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #1a4b8c;
            color: #1a4b8c;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: #ffd700;
        }

        /* 应用中心样式 */
        .app-center-container {
            background-color: white;
            border-radius: 8px;
            padding: 30px;
            margin-bottom: 40px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
        }

        .app-center-container:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }

        .app-category {
            margin-top: 25px;
            margin-bottom: 25px;
        }

        .app-category select {
            padding: 10px 15px;
            border: 1px solid #e9ecef;
            border-radius: 6px;
            width: 180px;
            font-size: 16px;
            color: #333;
            transition: all 0.3s;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231a4b8c' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
        }

        .app-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .app-card {
            background-color: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: all 0.3s;
            text-align: center;
            cursor: pointer;
        }

        .app-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        
        .app-card .app-meta {
            display: flex;
            color: #999;
            font-size: 12px;
        }
        
        .app-card .app-meta span {
            margin-right: 15px;
        }

        .app-card i {
            font-size: 40px;
            color: #1a4b8c;
            margin-bottom: 15px;
            transition: all 0.3s;
        }

        .app-card:hover i {
            color: #ffd700;
        }

        .app-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #333;
        }

        .app-card p {
            font-size: 14px;
            color: #666;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
        }

        .app-card .app-tag {
            display: inline-block;
            padding: 5px 10px;
            background-color: #1a4b8c;
            color: white;
            border-radius: 15px;
            font-size: 12px;
        }

        .app-card .app-rating {
            color: #ffd700;
            margin-top: 10px;
        }

        /* 应用分类过滤效果 */
        .app-filter {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .filter-btn {
            padding: 8px 15px;
            margin-right: 10px;
            margin-bottom: 10px;
            background-color: #f0f4f8;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .filter-btn:hover, .filter-btn.active {
            background-color: #1a4b8c;
            color: white;
        }

        /* 应用搜索框 */
        .app-search {
            display: flex;
            margin-bottom: 20px;
        }

        .app-search input {
            flex: 1;
            padding: 10px 15px;
            border: 1px solid #e9ecef;
            border-radius: 6px 0 0 6px;
            font-size: 16px;
        }

        .app-search button {
            padding: 10px 20px;
            background-color: #1a4b8c;
            color: white;
            border: none;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: all 0.3s;
        }

        .app-search button:hover {
            background-color: #153a6d;
        }

        /* 应用分页 */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .pagination-item {
            padding: 8px 15px;
            margin: 0 5px;
            border: 1px solid #e9ecef;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .pagination-item:hover, .pagination-item.active {
            background-color: #1a4b8c;
            color: white;
            border-color: #1a4b8c;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .app-list {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .app-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .app-list {
                grid-template-columns: 1fr;
            }
        }
        
        /* 应用详情页样式 */
        .app-detail-container {
            background-color: white;
            border-radius: 8px;
            padding: 30px;
            margin-bottom: 40px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .app-header {
            display: flex;
            margin-bottom: 30px;
        }

        .app-icons {
            margin: auto;
            width: 60px;
            height: 60px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .app-icons img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .app-icon {
            width: 120px;
            height: 120px;
            border-radius: 20px;
            overflow: hidden;
            margin-right: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .app-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .app-info {
            flex: 1;
        }

        .app-info h2 {
            font-size: 28px;
            margin-bottom: 10px;
            color: #1a4b8c;
           
        }

        .app-info p {
            color: #666;
            margin-bottom: 15px;
            line-height: 1.8;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
        }

        .app-meta {
            display: flex;
            margin-top: 20px;
        }
        
        .applic-meta {
            font-size: 12px;
            color: #888;
            margin-bottom: 5px;
        }

        .app-tag {
            padding: 5px 10px;
            background-color: #1a4b8c;
            color: white;
            border-radius: 15px;
            font-size: 14px;
            margin-right: 15px;
        }

        .app-rating {
            display: flex;
            align-items: center;
            margin-left: 20px;
        }

        .app-rating i {
            color: #ffd700;
            margin-right: 5px;
        }

        .app-rating span {
            font-weight: bold;
            color: #333;
        }

        .app-description {
            margin-bottom: 30px;
        }

        .app-description h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #1a4b8c;
            padding-bottom: 10px;
            line-height: 2;
            border-bottom: 1px solid #e9ecef;
        }

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

        .app-features {
            margin-bottom: 30px;
        }

        .app-features h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #1a4b8c;
            padding-bottom: 10px;
            border-bottom: 1px solid #e9ecef;
        }

        .features-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .feature-item i {
            color: #1a4b8c;
            font-size: 20px;
            margin-right: 15px;
        }

        .feature-item h4 {
            font-size: 16px;
            color: #333;
        }

        .feature-item p {
            font-size: 14px;
            color: #666;
            margin-left: 10px;
        }

        .app-screenshots {
            margin-bottom: 30px;
        }

        .app-screenshots h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #1a4b8c;
            padding-bottom: 10px;
            border-bottom: 1px solid #e9ecef;
        }

        .screenshots-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }

        .screenshot-item {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: all 0.3s;
        }

        .screenshot-item:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .screenshot-item img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .app-download {
            margin-bottom: 30px;
        }

        .app-download h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #1a4b8c;
            padding-bottom: 10px;
            border-bottom: 1px solid #e9ecef;
        }

        .download-buttons {
            display: flex;
            gap: 15px;
        }

        .download-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 6px;
            color: white;
            text-decoration: none;
            font-size: 16px;
            transition: all 0.3s;
        }

        .download-btn i {
            font-size: 24px;
            margin-right: 10px;
        }

        .download-btn.android {
            background-color: #3b9e4b;
        }

        .download-btn.android:hover {
            background-color: #2f8c3d;
        }

        .download-btn.ios {
            background-color: #0071e3;
        }

        .download-btn.ios:hover {
            background-color: #005bb8;
        }
        
        .download-btn.web {
                background-color: #ff9800; /* 橙色 */
            }
            
            .download-btn.web:hover {
                background-color: #e68a00; /* 深橙色 */
            }

        .app-related {
            margin-top: 40px;
        }

        .app-related h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: #1a4b8c;
        }

        .related-apps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .related-app {
            background-color: #f8f9fa;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: all 0.3s;
            text-align: center;
            cursor: pointer;
        }

        .related-app:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        
        .related-app-icon {
            margin: auto;
            width: 60px;
            height: 60px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .related-app-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-app i {
            font-size: 36px;
            color: #1a4b8c;
            margin-bottom: 15px;
        }

        .related-app h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .related-app p {
            font-size: 14px;
            color: #666;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .features-list {
                grid-template-columns: 1fr;
            }

            .screenshots-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .related-apps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .app-header {
                flex-direction: column;
            }

            .app-icon {
                width: 100%;
                height: 180px;
                margin-right: 0;
                margin-bottom: 20px;
            }

            .related-apps {
                grid-template-columns: 1fr;
            }
        }