:root {
            --primary-color: #1E6B8E;
            --accent-color1: #4CAF50;
            --accent-color2: #2196F3;
            --accent-color3: #FF9800;
            --dark-bg: #0a1929;
            --light-bg: #f0f5fa;
            --card-bg: #ffffff;
            --text-color: #333333;
            --text-light: #f8f9fa;
        }

        body {
            background-color: var(--light-bg);
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--text-color);
            overflow-x: hidden;
        }

        /* 新拟态设计元素 */
        .ai_auto_neumorphic {
            background: var(--light-bg);
            border-radius: 16px;
            box-shadow: 8px 8px 16px #d1d9e6, 
                        -8px -8px 16px #ffffff;
            border: none;
        }

        .ai_auto_neumorphic_inner {
            border-radius: 12px;
            background: var(--light-bg);
            box-shadow: inset 6px 6px 12px #d1d9e6, 
                        inset -6px -6px 12px #ffffff;
        }

        /* 导航栏样式 */
        #ai_auto_navbar {
            background: linear-gradient(145deg, #0d2030, #0a1929);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            padding: 15px 0;
        }

        .ai_auto_navbar-brand {
            color: var(--text-light);
            font-weight: 700;
            font-size: 1.8rem;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }

        .ai_auto_navbar-brand i {
            color: var(--accent-color1);
            margin-right: 10px;
            font-size: 2rem;
        }

        .ai_auto_nav-link {
            color: rgba(255, 255, 255, 0.8) !important;
            font-weight: 500;
            padding: 8px 15px !important;
            margin: 0 5px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .ai_auto_nav-link:hover {
            color: white !important;
            background: rgba(30, 107, 142, 0.3);
            transform: translateY(-2px);
        }

        .ai_auto_search_form {
            position: relative;
        }

        .ai_auto_search_input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white !important;
            border-radius: 30px;
            padding: 10px 20px;
            padding-right: 45px;
            transition: all 0.3s ease;
        }

        .ai_auto_search_input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .ai_auto_search_input:focus {
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 0.25rem rgba(30, 107, 142, 0.25);
        }

        .ai_auto_search_btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            cursor: pointer;
        }

        /* Banner 样式 */
        #ai_auto_banner {
            background: linear-gradient(rgba(10, 25, 41, 0.9), rgba(10, 25, 41, 0.8)), 
                        url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            margin-bottom: 50px;
            text-align: center;
            color: white;
        }

        .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_desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
            line-height: 1.6;
        }

        .ai_auto_banner_search {
            max-width: 700px;
            margin: 0 auto;
        }

        .ai_auto_banner_search .form-control {
            padding: 15px 25px;
            border-radius: 50px;
            font-size: 1.1rem;
            border: none;
        }

        .ai_auto_banner_search .btn {
            position: absolute;
            right: 8px;
            top: 8px;
            background: var(--primary-color);
            color: white;
            border-radius: 50px;
            padding: 8px 25px;
            font-weight: 600;
            transition: all 0.3s;
        }

        .ai_auto_banner_search .btn:hover {
            background: #165a77;
            transform: translateY(-2px);
        }

        /* 文章区域通用样式 */
        #ai_auto_home-artice {
            padding: 50px 0;
        }

        .ai_auto_section_title {
            position: relative;
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 40px;
            padding-bottom: 15px;
            color: var(--primary-color);
            text-align: center;
        }

        .ai_auto_section_title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color1));
            border-radius: 2px;
        }

        .ai_auto_article_card {
            height: 100%;
            transition: all 0.4s ease;
            overflow: hidden;
            border-radius: 16px;
        }

        .ai_auto_article_card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .ai_auto_article_img {
            height: 200px;
            width: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .ai_auto_article_card:hover .ai_auto_article_img {
            transform: scale(1.05);
        }

        .ai_auto_article_date {
            font-size: 0.85rem;
            color: var(--accent-color3);
            font-weight: 500;
        }

        .ai_auto_article_title {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 10px 0;
            transition: color 0.3s;
        }

        .ai_auto_article_title a {
            color: var(--dark-bg);
            text-decoration: none;
        }

        .ai_auto_article_title a:hover {
            color: var(--primary-color);
        }

        .ai_auto_article_desc {
            color: #666;
            line-height: 1.6;
        }

        .ai_auto_article_author {
            font-weight: 500;
            color: var(--primary-color);
        }

        .ai_auto_label {
            display: inline-block;
            background: rgba(30, 107, 142, 0.1);
            color: var(--primary-color);
            padding: 3px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
            margin: 3px;
            transition: all 0.3s;
            text-decoration: none;
        }

        .ai_auto_label:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }

        /* 特色文章区域 - 杂志式布局 */
        #ai_auto_feature-article .ai_auto_main_feature {
            position: relative;
            height: 500px;
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 30px;
        }

        #ai_auto_feature-article .ai_auto_main_feature_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        #ai_auto_feature-article .ai_auto_main_feature:hover .ai_auto_main_feature_img {
            transform: scale(1.05);
        }

        #ai_auto_feature-article .ai_auto_main_feature_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-article .ai_auto_main_feature_title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        #ai_auto_feature-article .ai_auto_main_feature_title a {
            color: white;
            text-decoration: none;
        }

        #ai_auto_feature-article .ai_auto_feature_side {
            height: 100%;
        }

        #ai_auto_feature-article .ai_auto_feature_side .ai_auto_article_card {
            height: 235px;
            margin-bottom: 30px;
        }

        /* 最近文章区域 - 瀑布流布局 */
        #ai_auto_last-article .ai_auto_masonry_container {
            column-count: 3;
            column-gap: 30px;
        }

        @media (max-width: 992px) {
            #ai_auto_last-article .ai_auto_masonry_container {
                column-count: 2;
            }
        }

        @media (max-width: 576px) {
            #ai_auto_last-article .ai_auto_masonry_container {
                column-count: 1;
            }
        }

        #ai_auto_last-article .ai_auto_masonry_item {
            break-inside: avoid;
            margin-bottom: 30px;
        }

        /* 推荐文章区域 - 图文融合卡片 */
        #ai_auto_recommend-article .ai_auto_fusion_card {
            position: relative;
            height: 300px;
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 30px;
        }

        #ai_auto_recommend-article .ai_auto_fusion_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s ease;
        }

        #ai_auto_recommend-article .ai_auto_fusion_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 25px;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            transform: translateY(100px);
            transition: all 0.5s ease;
            opacity: 0;
        }

        #ai_auto_recommend-article .ai_auto_fusion_card:hover .ai_auto_fusion_content {
            transform: translateY(0);
            opacity: 1;
        }

        #ai_auto_recommend-article .ai_auto_fusion_title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        #ai_auto_recommend-article .ai_auto_fusion_title a {
            color: white;
            text-decoration: none;
        }

        /* 订阅区域 */
        #ai_auto_subscribe {
            background: linear-gradient(145deg, #0d2030, #0a1929);
            padding: 80px 0;
            color: white;
            margin-top: 50px;
        }

        .ai_auto_subscribe_title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .ai_auto_subscribe_desc {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 30px;
            opacity: 0.9;
            line-height: 1.6;
        }

        .ai_auto_subscribe_form {
            max-width: 600px;
            margin: 0 auto;
        }

        .ai_auto_subscribe_input {
            padding: 15px 25px;
            border-radius: 50px;
            font-size: 1.1rem;
            border: none;
            background: rgba(255, 255, 255, 0.1);
            color: white;
        }

        .ai_auto_subscribe_input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .ai_auto_subscribe_btn {
            background: var(--accent-color1);
            color: white;
            border: none;
            padding: 12px 35px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s;
        }

        .ai_auto_subscribe_btn:hover {
            background: #3d8b40;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        /* 页脚样式 */
        #ai_auto_footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 70px 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;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent-color2);
        }

        .ai_auto_footer_desc {
            line-height: 1.7;
            max-width: 300px;
        }

        .ai_auto_footer_list {
            list-style: none;
            padding: 0;
        }

        .ai_auto_footer_list li {
            margin-bottom: 10px;
        }

        .ai_auto_footer_list a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: all 0.3s;
            display: block;
        }

        .ai_auto_footer_list a:hover {
            color: white;
            transform: translateX(5px);
        }

        .ai_auto_contact_item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 15px;
        }

        .ai_auto_contact_icon {
            color: var(--accent-color2);
            font-size: 1.2rem;
            margin-right: 10px;
            min-width: 25px;
        }

        .ai_auto_copyright {
            background: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            margin-top: 50px;
            text-align: center;
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .ai_auto_banner_title {
                font-size: 2.2rem;
            }
            
            .ai_auto_main_feature_title {
                font-size: 1.6rem;
            }
            
            .ai_auto_subscribe_title {
                font-size: 2rem;
            }
        }