:root {
            --ai-primary: #006B54;
            --ai-secondary: #7EB09B;
            --ai-accent: #5F9EA0;
            --ai-light: #F0F8FF;
            --ai-dark: #1a3c34;
            --ai-card-radius: 24px;
            --ai-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            --ai-inner-shadow: inset 2px 2px 5px rgba(255, 255, 255, 0.5);
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #f0f9f7 0%, #e6f4f1 100%);
            color: #333;
            overflow-x: hidden;
        }
        
        /* 黏土态风格元素 */
        .ai-clay-card {
            background: rgba(255, 255, 255, 0.85);
            border-radius: var(--ai-card-radius);
            box-shadow: var(--ai-shadow),
                        var(--ai-inner-shadow);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }
        
        .ai-clay-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0, 107, 84, 0.15),
                        var(--ai-inner-shadow);
        }
        
        .ai-clay-btn {
            background: linear-gradient(145deg, #ffffff, #e6f4f1);
            border: none;
            border-radius: 50px;
            box-shadow: 3px 3px 8px rgba(0, 107, 84, 0.1),
                        -3px -3px 8px rgba(255, 255, 255, 0.8);
            color: var(--ai-primary);
            font-weight: 600;
            padding: 10px 25px;
            transition: all 0.3s ease;
        }
        
        .ai-clay-btn:hover {
            box-shadow: 2px 2px 5px rgba(0, 107, 84, 0.1),
                        -2px -2px 5px rgba(255, 255, 255, 0.6);
            transform: translateY(2px);
            color: var(--ai-dark);
        }
        
        .ai-primary-bg {
            background-color: var(--ai-primary);
        }
        
        .ai-secondary-bg {
            background-color: var(--ai-secondary);
        }
        
        .ai-text-primary {
            color: var(--ai-primary);
        }
        
        .ai-section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        
        .ai-section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--ai-primary);
            border-radius: 2px;
        }
        
        /* 导航条样式 */
        #ai_auto_navbar {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            padding: 15px 0;
        }
        
        .ai-nav-link {
            color: var(--ai-dark);
            font-weight: 600;
            margin: 0 10px;
            padding: 8px 15px !important;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        
        .ai-nav-link:hover {
            background: rgba(0, 107, 84, 0.1);
            color: var(--ai-primary);
        }
        
        /* Banner样式 */
        #ai_auto_banner {
            background: linear-gradient(rgba(0, 107, 84, 0.85), rgba(30, 80, 70, 0.9)), 
                        url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?q=80&w=2070&auto=format&fit=crop') center/cover;
            padding: 100px 0;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .ai-banner-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        
        .ai-banner-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .ai-banner-subtitle {
            font-size: 1.4rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        
        .ai-search-form {
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 文章卡片样式 */
        .ai-article-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--ai-card-radius) var(--ai-card-radius) 0 0;
        }
        
        .ai-article-img-small {
            height: 120px;
            width: 100%;
            object-fit: cover;
            border-radius: 12px;
        }
        
        .ai-article-date {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--ai-primary);
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        .ai-tag {
            display: inline-block;
            background: rgba(0, 107, 84, 0.1);
            color: var(--ai-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            margin-right: 8px;
            margin-bottom: 8px;
            transition: all 0.2s ease;
        }
        
        .ai-tag:hover {
            background: var(--ai-primary);
            color: white;
            text-decoration: none;
        }
        
        .ai-timeline-card {
            position: relative;
            border-left: 3px solid var(--ai-primary);
            padding-left: 25px;
            margin-bottom: 30px;
        }
        
        .ai-timeline-card::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 20px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--ai-primary);
        }
        
        /* 图片融合卡片 */
        .ai-image-blend-card {
            position: relative;
            height: 300px;
            border-radius: var(--ai-card-radius);
            overflow: hidden;
            margin-bottom: 25px;
        }
        
        .ai-image-blend-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s ease;
        }
        
        .ai-image-blend-content {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 25px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
            color: white;
            transform: translateY(100px);
            transition: all 0.4s ease;
            opacity: 0;
        }
        
        .ai-image-blend-card:hover .ai-image-blend-content {
            transform: translateY(0);
            opacity: 1;
        }
        
        .ai-image-blend-card:hover img {
            transform: scale(1.05);
        }
        
        /* 杂志式布局 */
        .ai-magazine-left {
            height: 100%;
            position: relative;
            overflow: hidden;
            border-radius: var(--ai-card-radius);
        }
        
        .ai-magazine-left img {
            height: 100%;
            object-fit: cover;
        }
        
        .ai-magazine-content {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 25px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
            color: white;
        }
        
        /* 订阅区域 */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, var(--ai-secondary) 0%, var(--ai-accent) 100%);
            padding: 80px 0;
            color: white;
            text-align: center;
        }
        
        /* 页脚样式 */
        #ai_auto_footer {
            background: var(--ai-dark);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 60px;
        }
        
        .ai-footer-title {
            color: white;
            font-weight: 700;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai-footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--ai-primary);
        }
        
        .ai-footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            margin-bottom: 10px;
            transition: all 0.3s ease;
        }
        
        .ai-footer-link:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai-copyright {
            background: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .ai-banner-title {
                font-size: 2.5rem;
            }
            
            .ai-banner-subtitle {
                font-size: 1.1rem;
            }
        }
        
        @media (max-width: 768px) {
            .ai-banner-title {
                font-size: 2rem;
            }
            
            .ai-section-title {
                font-size: 1.8rem;
            }
        }