:root {
            --primary-color: #2c6e8c;
            --secondary-color: #4c956c;
            --accent-color1: #8ecae6;
            --accent-color2: #f4a261;
            --dark-color: #1a3c4c;
            --light-color: #f0f7fa;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            overflow-x: hidden;
        }
        
        /* 导航条样式 */
        #ai_auto_navbar {
            background-color: var(--primary-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 15px 0;
        }
        
        .ai_auto_navbar-brand {
            color: white !important;
            font-weight: 700;
            font-size: 1.5rem;
            letter-spacing: 1px;
        }
        
        .ai_auto_nav-link {
            color: rgba(255,255,255,0.85) !important;
            font-weight: 500;
            margin: 0 10px;
            transition: all 0.3s;
        }
        
        .ai_auto_nav-link:hover {
            color: white !important;
            transform: translateY(-2px);
        }
        
        .ai_auto_search-form {
            position: relative;
        }
        
        .ai_auto_search-input {
            background-color: rgba(255,255,255,0.15);
            border: none;
            color: white;
            padding: 8px 15px;
            border-radius: 30px;
            transition: all 0.3s;
            width: 200px;
        }
        
        .ai_auto_search-input:focus {
            background-color: rgba(255,255,255,0.25);
            outline: none;
            box-shadow: none;
            width: 250px;
        }
        
        .ai_auto_search-input::placeholder {
            color: rgba(255,255,255,0.7);
        }
        
        .ai_auto_search-btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: rgba(255,255,255,0.7);
        }
        
        /* Banner样式 */
        #ai_auto_banner {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            padding: 80px 0;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .ai_auto_banner-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
            background-size: 30px 30px;
            opacity: 0.3;
            pointer-events: none;
        }
        
        .ai_auto_banner-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }
        
        .ai_auto_banner-desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_banner-search {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .ai_auto_banner-input {
            border: none;
            padding: 15px 20px;
            border-radius: 50px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_banner-btn {
            position: absolute;
            right: 5px;
            top: 5px;
            background: var(--accent-color2);
            border: none;
            color: white;
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .ai_auto_banner-btn:hover {
            background: #e68e4f;
            transform: translateY(-2px);
        }
        
        /* 文章展示区域 */
        #ai_auto_home-artice {
            padding: 80px 0;
            background-color: white;
        }
        
        .ai_auto_section-title {
            position: relative;
            margin-bottom: 40px;
            font-weight: 700;
            color: var(--dark-color);
            text-align: center;
        }
        
        .ai_auto_section-title::after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-color2);
            border-radius: 2px;
        }
        
        /* 特色文章 - 杂志式排版 */
        #ai_auto_feature-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_magazine-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        
        .ai_auto_main-feature {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            height: 100%;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .ai_auto_feature-img {
            height: 100%;
            width: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_main-feature:hover .ai_auto_feature-img {
            transform: scale(1.05);
        }
        
        .ai_auto_feature-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            padding: 30px;
            color: white;
        }
        
        .ai_auto_feature-label {
            background: var(--accent-color2);
            color: white;
            padding: 5px 15px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 15px;
        }
        
        .ai_auto_feature-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .ai_auto_feature-author {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        .ai_auto_side-features {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        
        .ai_auto_side-article {
            display: flex;
            gap: 20px;
            align-items: center;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
        }
        
        .ai_auto_side-article:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }
        
        .ai_auto_side-img {
            width: 150px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
        }
        
        .ai_auto_side-content {
            flex: 1;
        }
        
        .ai_auto_side-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark-color);
        }
        
        .ai_auto_side-date {
            font-size: 0.85rem;
            color: var(--primary-color);
            font-weight: 500;
            margin-bottom: 8px;
        }
        
        /* 最近文章 - 文案列表带图片 */
        #ai_auto_last-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_article-list {
            border-top: 1px solid #eee;
        }
        
        .ai_auto_list-item {
            display: flex;
            padding: 25px 0;
            border-bottom: 1px solid #eee;
            gap: 30px;
            transition: all 0.3s;
        }
        
        .ai_auto_list-item:hover {
            background-color: rgba(142, 202, 230, 0.05);
            padding-left: 15px;
        }
        
        .ai_auto_list-img {
            width: 200px;
            height: 150px;
            object-fit: cover;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_list-content {
            flex: 1;
        }
        
        .ai_auto_list-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark-color);
        }
        
        .ai_auto_list-desc {
            color: #666;
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .ai_auto_list-meta {
            display: flex;
            align-items: center;
            color: #777;
            font-size: 0.9rem;
        }
        
        .ai_auto_list-author {
            margin-right: 20px;
            font-weight: 500;
        }
        
        .ai_auto_list-date {
            margin-right: 20px;
        }
        
        .ai_auto_list-labels {
            display: flex;
            gap: 10px;
        }
        
        .ai_auto_list-label {
            background: var(--accent-color1);
            color: var(--dark-color);
            padding: 3px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        /* 推荐文章 - 图文背景融合卡 */
        #ai_auto_recommend-article {
            margin-bottom: 60px;
        }
        
        .ai_auto_fusion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .ai_auto_fusion-card {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            height: 300px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_fusion-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s ease;
        }
        
        .ai_auto_fusion-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 25px;
            background: linear-gradient(to top, rgba(44, 110, 140, 0.9), transparent);
            color: white;
            transform: translateY(70px);
            transition: transform 0.4s ease;
        }
        
        .ai_auto_fusion-card:hover .ai_auto_fusion-overlay {
            transform: translateY(0);
        }
        
        .ai_auto_fusion-card:hover .ai_auto_fusion-img {
            transform: scale(1.1);
        }
        
        .ai_auto_fusion-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .ai_auto_fusion-meta {
            font-size: 0.85rem;
            opacity: 0.9;
            margin-bottom: 10px;
        }
        
        .ai_auto_fusion-labels {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        
        .ai_auto_fusion-label {
            background: rgba(255,255,255,0.2);
            color: white;
            padding: 3px 10px;
            border-radius: 30px;
            font-size: 0.75rem;
        }
        
        /* 订阅板块 */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
            padding: 80px 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .ai_auto_subscribe-desc {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            max-width: 500px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-input {
            border: none;
            padding: 15px 20px;
            border-radius: 50px;
            width: 100%;
        }
        
        .ai_auto_subscribe-btn {
            background: var(--accent-color2);
            border: none;
            color: white;
            padding: 12px 35px;
            border-radius: 50px;
            font-weight: 600;
            margin-top: 20px;
            transition: all 0.3s;
        }
        
        .ai_auto_subscribe-btn:hover {
            background: #e68e4f;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        /* Footer样式 */
        #ai_auto_footer {
            background-color: var(--dark-color);
            color: rgba(255,255,255,0.8);
            padding-top: 60px;
        }
        
        .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-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
        }
        
        .ai_auto_footer-desc {
            line-height: 1.7;
            margin-bottom: 20px;
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-link {
            margin-bottom: 10px;
        }
        
        .ai_auto_footer-link a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .ai_auto_footer-link a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .ai_auto_contact-icon {
            width: 36px;
            height: 36px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        
        .ai_auto_copyright {
            background-color: rgba(0,0,0,0.2);
            padding: 20px 0;
            margin-top: 60px;
            text-align: center;
            font-size: 0.9rem;
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .ai_auto_magazine-grid {
                grid-template-columns: 1fr;
            }
            
            .ai_auto_main-feature {
                grid-column: 1;
                grid-row: 1;
                margin-bottom: 30px;
                height: 400px;
            }
            
            .ai_auto_list-item {
                flex-direction: column;
                gap: 20px;
            }
            
            .ai_auto_list-img {
                width: 100%;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_banner-title {
                font-size: 2.2rem;
            }
            
            .ai_auto_footer-column {
                margin-bottom: 30px;
            }
        }
        
        /* 双色调/点阵印刷效果 */
        .ai_auto_halftone {
            position: relative;
            overflow: hidden;
        }
        
        .ai_auto_halftone::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(circle, rgba(0,0,0,0.1) 1px, transparent 1px);
            background-size: 15px 15px;
            pointer-events: none;
            z-index: 1;
        }
        
        .ai_auto_duotone {
            filter: grayscale(100%) contrast(130%) brightness(90%);
            position: relative;
        }
        
        .ai_auto_duotone::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            mix-blend-mode: multiply;
            opacity: 0.7;
            pointer-events: none;
        }