:root {
            --primary: #1a6dcc;
            --secondary-1: #2c9f45;
            --secondary-2: #e6b325;
            --secondary-3: #6c757d;
            --light: #f8f9fa;
            --dark: #212529;
            --neu-shadow: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
            --neu-shadow-inset: inset 4px 4px 8px #d1d9e6, inset -4px -4px 8px #ffffff;
        }
        
        body {
            background-color: #f0f5ff;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        
        /* 新拟态元素样式 */
        .ai_auto_neu {
            border-radius: 20px;
            background: linear-gradient(145deg, #e6ebf5, #ffffff);
            box-shadow: var(--neu-shadow);
            transition: all 0.3s ease;
        }
        
        .ai_auto_neu:hover {
            transform: translateY(-5px);
            box-shadow: 12px 12px 24px #d1d9e6, -12px -12px 24px #ffffff;
        }
        
        .ai_auto_neu_inset {
            border-radius: 20px;
            background: linear-gradient(145deg, #e6ebf5, #ffffff);
            box-shadow: var(--neu-shadow-inset);
        }
        
        /* 导航栏样式 */
        #ai_auto_navbar {
            background: linear-gradient(145deg, #e6ebf5, #ffffff);
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            padding: 1rem 0;
        }
        
        .ai_auto_navbar_brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary);
            letter-spacing: 1px;
        }
        
        .ai_auto_navbar_brand span {
            color: var(--secondary-1);
        }
        
        .ai_auto_nav_link {
            font-weight: 500;
            margin: 0 0.8rem;
            color: var(--dark);
            transition: all 0.3s;
            position: relative;
        }
        
        .ai_auto_nav_link:hover {
            color: var(--primary);
        }
        
        .ai_auto_nav_link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s;
        }
        
        .ai_auto_nav_link:hover::after {
            width: 100%;
        }
        
        .ai_auto_search_input {
            border: none;
            background: #f0f5ff;
            border-radius: 50px;
            padding: 0.6rem 1.5rem;
            box-shadow: var(--neu-shadow-inset);
        }
        
        .ai_auto_search_btn {
            background: var(--primary);
            color: white;
            border-radius: 50px;
            padding: 0.6rem 1.5rem;
            border: none;
            transition: all 0.3s;
        }
        
        .ai_auto_search_btn:hover {
            background: #145aad;
            transform: translateY(-2px);
        }
        
        /* Banner 样式 */
        #ai_auto_banner {
            background: linear-gradient(rgba(26, 109, 204, 0.85), rgba(44, 159, 69, 0.8)), 
                        url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            padding: 6rem 0;
            color: white;
            border-radius: 0 0 30px 30px;
            margin-bottom: 4rem;
        }
        
        .ai_auto_banner_title {
            font-size: 3.5rem;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .ai_auto_banner_desc {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        
        /* 文章区域通用样式 */
        .ai_auto_section_title {
            position: relative;
            font-weight: 700;
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 2.5rem;
            padding-bottom: 15px;
            text-align: center;
        }
        
        .ai_auto_section_title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-1);
            border-radius: 2px;
        }
        
        .ai_auto_article_card {
            height: 100%;
            overflow: hidden;
            border-radius: 15px;
            background: white;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            transition: all 0.4s;
        }
        
        .ai_auto_article_card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.15);
        }
        
        .ai_auto_article_img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .ai_auto_article_card:hover .ai_auto_article_img {
            transform: scale(1.05);
        }
        
        .ai_auto_label {
            display: inline-block;
            background: var(--secondary-1);
            color: white;
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            margin: 0 5px 5px 0;
            transition: all 0.3s;
        }
        
        .ai_auto_label:hover {
            background: var(--primary);
            transform: translateY(-2px);
        }
        
        .ai_auto_article_title {
            font-weight: 700;
            color: var(--dark);
            transition: color 0.3s;
            font-size: 1.3rem;
        }
        
        .ai_auto_article_title:hover {
            color: var(--primary);
        }
        
        .ai_auto_article_desc {
            color: var(--secondary-3);
            line-height: 1.7;
        }
        
        .ai_auto_article_author {
            font-weight: 500;
            color: var(--primary);
        }
        
        .ai_auto_article_date {
            color: var(--secondary-3);
            font-size: 0.9rem;
        }
        
        /* 特色文章区域 - 杂志式排版 */
        #ai_auto_feature-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_magazine_main {
            height: 745px;
            position: relative;
            overflow: hidden;
            border-radius: 15px;
        }
        
        .ai_auto_magazine_main_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .ai_auto_magazine_main:hover .ai_auto_magazine_main_img {
            transform: scale(1.05);
        }
        
        .ai_auto_magazine_main_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 2rem;
        }
        
        .ai_auto_magazine_main_title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .ai_auto_magazine_side_item {
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }
        
        .ai_auto_magazine_side_img {
            width: 120px;
            height: 90px;
            object-fit: cover;
            border-radius: 10px;
        }
        
        /* 最近文章区域 - 单列时间线卡片 */
        #ai_auto_last-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_timeline {
            position: relative;
            padding-left: 40px;
        }
        
        .ai_auto_timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            height: 100%;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        
        .ai_auto_timeline_item {
            margin-bottom: 40px;
            position: relative;
        }
        
        .ai_auto_timeline_date {
            position: absolute;
            left: -40px;
            top: 0;
            background: var(--primary);
            color: white;
            padding: 8px 15px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(26, 109, 204, 0.3);
        }
        
        .ai_auto_timeline_content {
            background: white;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            border-left: 3px solid var(--secondary-1);
        }
        
        /* 推荐文章区域 - 瀑布流布局 */
        #ai_auto_recommend-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_masonry {
            column-count: 3;
            column-gap: 1.5rem;
        }
        
        .ai_auto_masonry_item {
            break-inside: avoid;
            margin-bottom: 1.5rem;
        }
        
        @media (max-width: 992px) {
            .ai_auto_masonry {
                column-count: 2;
            }
        }
        
        @media (max-width: 576px) {
            .ai_auto_masonry {
                column-count: 1;
            }
        }
        
        /* 订阅区域样式 */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, var(--primary), var(--secondary-1));
            padding: 5rem 0;
            border-radius: 30px;
            margin-bottom: 5rem;
        }
        
        .ai_auto_subscribe_title {
            font-size: 2.5rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_subscribe_desc {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
            max-width: 700px;
            margin: 0 auto 2.5rem;
        }
        
        .ai_auto_subscribe_input {
            border: none;
            border-radius: 50px;
            padding: 0.9rem 1.8rem;
            width: 100%;
            max-width: 500px;
            margin: 0 auto;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_subscribe_btn {
            background: var(--secondary-2);
            color: var(--dark);
            font-weight: 600;
            border: none;
            border-radius: 50px;
            padding: 0.9rem 2.5rem;
            margin-top: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: all 0.3s;
        }
        
        .ai_auto_subscribe_btn:hover {
            background: #d19f1d;
            transform: translateY(-3px);
        }
        
        /* 页脚样式 */
        #ai_auto_footer {
            background: linear-gradient(145deg, #1a3b5e, #0d1f33);
            color: rgba(255,255,255,0.8);
            padding: 4rem 0 0;
        }
        
        .ai_auto_footer_title {
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer_title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary-1);
        }
        
        .ai_auto_footer_desc {
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }
        
        .ai_auto_footer_list {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer_list li {
            margin-bottom: 0.8rem;
        }
        
        .ai_auto_footer_list a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .ai_auto_footer_list a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_footer_contact li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1rem;
        }
        
        .ai_auto_footer_contact i {
            margin-right: 10px;
            color: var(--secondary-1);
            font-size: 1.2rem;
            min-width: 20px;
        }
        
        .ai_auto_copyright {
            background: rgba(0,0,0,0.2);
            padding: 1.5rem 0;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .ai_auto_animate {
            animation: fadeInUp 0.8s ease forwards;
        }