:root {
            --ai_auto_primary: #1a73e8;
            --ai_auto_success: #34a853;
            --ai_auto_warning: #fbbc05;
            --ai_auto_danger: #ea4335;
            --ai_auto_nature: #2e7d32;
            --ai_auto_light: #f8f9fa;
            --ai_auto_dark: #212529;
            --ai_auto_bg: #f5f8fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--ai_auto_bg);
            color: #333;
            line-height: 1.6;
        }
        
        /* 导航条样式 */
        #ai_auto_navbar {
            background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 0.8rem 0;
        }
        
        .ai_auto_navbar-brand {
            color: white !important;
            font-weight: 700;
            font-size: 1.5rem;
            letter-spacing: 1px;
        }
        
        .ai_auto_navbar-brand i {
            color: var(--ai_auto_warning);
            margin-right: 8px;
        }
        
        .ai_auto_nav-link {
            color: rgba(255,255,255,0.85) !important;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 15px !important;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        
        .ai_auto_nav-link:hover {
            background-color: rgba(255,255,255,0.15);
            color: white !important;
        }
        
        .ai_auto_search_form {
            position: relative;
        }
        
        .ai_auto_search_input {
            border-radius: 30px;
            padding: 10px 20px;
            border: none;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .ai_auto_search_btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--ai_auto_primary);
        }
        
        /* Banner部分样式 */
        #ai_auto_banner {
            background: linear-gradient(rgba(26, 115, 232, 0.9), rgba(26, 115, 232, 0.7)), 
                        url('https://images.unsplash.com/photo-1584036561566-baf8f5f1b144?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: white;
            text-align: center;
            margin-bottom: 50px;
        }
        
        .ai_auto_banner_title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        
        .ai_auto_banner_info {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_banner_search {
            max-width: 600px;
            margin: 0 auto;
        }
        
        /* 文章区域通用样式 */
        #ai_auto_home-artice {
            padding: 40px 0;
        }
        
        .ai_auto_section_title {
            position: relative;
            margin-bottom: 30px;
            padding-bottom: 15px;
            font-weight: 700;
            color: var(--ai_auto_nature);
        }
        
        .ai_auto_section_title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 3px;
            background-color: var(--ai_auto_primary);
        }
        
        .ai_auto_article_card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-radius: 8px;
            overflow: hidden;
            height: 100%;
            background: white;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        
        .ai_auto_article_card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .ai_auto_article_img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        
        .ai_auto_article_body {
            padding: 20px;
        }
        
        .ai_auto_article_title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ai_auto_dark);
        }
        
        .ai_auto_article_desc {
            color: #666;
            margin-bottom: 15px;
            font-size: 0.95rem;
        }
        
        .ai_auto_article_meta {
            font-size: 0.85rem;
            color: #777;
            display: flex;
            align-items: center;
            margin-bottom: 10px;
        }
        
        .ai_auto_article_author {
            font-weight: 600;
            color: var(--ai_auto_primary);
        }
        
        .ai_auto_article_date {
            margin-left: 15px;
        }
        
        .ai_auto_label {
            display: inline-block;
            background-color: rgba(26, 115, 232, 0.1);
            color: var(--ai_auto_primary);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            margin-right: 5px;
            margin-bottom: 5px;
            transition: all 0.3s ease;
        }
        
        .ai_auto_label:hover {
            background-color: var(--ai_auto_primary);
            color: white;
            text-decoration: none;
        }
        
        /* 特色文章 - 杂志式排版 */
        #ai_auto_feature-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_feature_main {
            height: 100%;
            position: relative;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        
        .ai_auto_feature_main_img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        
        .ai_auto_feature_main_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
        }
        
        .ai_auto_feature_main_title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .ai_auto_feature_side {
            height: 100%;
        }
        
        .ai_auto_feature_side_item {
            display: flex;
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .ai_auto_feature_side_img {
            width: 120px;
            height: 100px;
            object-fit: cover;
            border-radius: 6px;
            margin-right: 15px;
        }
        
        .ai_auto_feature_side_title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 5px;
        }
        
        /* 最近文章 - 文案列表带图片 */
        #ai_auto_last-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_last_article_item {
            display: flex;
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }
        
        .ai_auto_last_article_img {
            width: 200px;
            height: 150px;
            object-fit: cover;
            border-radius: 6px;
            margin-right: 25px;
        }
        
        .ai_auto_last_article_content {
            flex: 1;
        }
        
        .ai_auto_last_article_title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        /* 推荐文章 - 图文背景融合卡 */
        #ai_auto_recommend-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_recommend_item {
            position: relative;
            height: 280px;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 25px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_recommend_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_recommend_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 25px;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            transform: translateY(100px);
            transition: transform 0.4s ease;
        }
        
        .ai_auto_recommend_item:hover .ai_auto_recommend_content {
            transform: translateY(0);
        }
        
        .ai_auto_recommend_item:hover .ai_auto_recommend_img {
            transform: scale(1.05);
        }
        
        .ai_auto_recommend_title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        
        /* 订阅板块 */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
            padding: 70px 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe_title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .ai_auto_subscribe_info {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe_form {
            max-width: 500px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe_input {
            border-radius: 30px;
            padding: 12px 25px;
            border: none;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_subscribe_btn {
            border-radius: 30px;
            padding: 12px 35px;
            background-color: var(--ai_auto_warning);
            border: none;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 15px;
        }
        
        .ai_auto_subscribe_btn:hover {
            background-color: #e6ac00;
            transform: translateY(-2px);
        }
        
        /* Footer样式 */
        #ai_auto_footer {
            background-color: #0d2c54;
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
        }
        
        .ai_auto_footer_title {
            color: white;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer_title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 2px;
            background-color: var(--ai_auto_primary);
        }
        
        .ai_auto_footer_links a {
            display: block;
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            padding: 5px 0;
            transition: all 0.3s ease;
        }
        
        .ai_auto_footer_links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_footer_desc {
            color: rgba(255,255,255,0.7);
            line-height: 1.7;
        }
        
        .ai_auto_footer_contact {
            color: rgba(255,255,255,0.7);
            margin-bottom: 10px;
        }
        
        .ai_auto_footer_contact i {
            width: 25px;
            color: var(--ai_auto_primary);
        }
        
        .ai_auto_footer_copyright {
            background-color: rgba(0,0,0,0.2);
            padding: 20px 0;
            margin-top: 50px;
            text-align: center;
            color: rgba(255,255,255,0.6);
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .ai_auto_last_article_img {
                width: 150px;
                height: 120px;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_banner_title {
                font-size: 2.2rem;
            }
            
            .ai_auto_feature_main_img {
                height: 300px;
            }
            
            .ai_auto_last_article_item {
                flex-direction: column;
            }
            
            .ai_auto_last_article_img {
                width: 100%;
                height: 200px;
                margin-right: 0;
                margin-bottom: 15px;
            }
        }