:root {
            --primary-color: #1A3A6B;
            --secondary-color: #4A7BB8;
            --accent-color: #2D9D92;
            --light-bg: #F5F5F5;
            --glass-bg: rgba(255, 255, 255, 0.15);
            --glass-border: rgba(255, 255, 255, 0.18);
            --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
            --transition: all 0.3s ease;
        }
        
        body {
            background: linear-gradient(135deg, #e0f7fa 0%, #f5f5f5 100%);
            background-attachment: fixed;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        
        /* Glassmorphism Effect */
        .ai_auto_glass {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow);
            border-radius: 12px;
        }
        
        .ai_auto_glass_hover:hover {
            background: rgba(255, 255, 255, 0.25);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(31, 38, 135, 0.2);
        }
        
        /* Navigation Bar */
        #ai_auto_navbar {
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary-color);
        }
        
        .ai_auto_navbar_container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .ai_auto_site_title {
            color: white;
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-right: 30px;
        }
        
        .ai_auto_nav_links {
            display: flex;
            gap: 25px;
            flex-grow: 1;
        }
        
        .ai_auto_nav_link {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }
        
        .ai_auto_nav_link:hover {
            color: white;
        }
        
        .ai_auto_nav_link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: var(--transition);
        }
        
        .ai_auto_nav_link:hover::after {
            width: 100%;
        }
        
        .ai_auto_search_form {
            display: flex;
            margin-left: 20px;
            max-width: 300px;
        }
        
        .ai_auto_search_input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white;
            padding: 10px 15px;
            border-radius: 30px 0 0 30px;
            transition: var(--transition);
        }
        
        .ai_auto_search_input:focus {
            background: rgba(255, 255, 255, 0.2);
            box-shadow: none;
            outline: none;
        }
        
        .ai_auto_search_btn {
            background: var(--accent-color);
            border: none;
            color: white;
            padding: 0 20px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .ai_auto_search_btn:hover {
            background: #238d83;
        }
        
        /* Banner Section */
        #ai_auto_banner {
            padding: 100px 0;
            background: linear-gradient(rgba(26, 58, 107, 0.85), rgba(26, 58, 107, 0.85)), 
                        url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3') center/cover;
            text-align: center;
            color: white;
            margin-bottom: 50px;
            border-radius: 0 0 30px 30px;
        }
        
        .ai_auto_banner_title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        
        .ai_auto_banner_desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_banner_search {
            max-width: 700px;
            margin: 0 auto;
        }
        
        .ai_auto_banner_search_input {
            padding: 15px 25px;
            border: none;
            border-radius: 50px 0 0 50px;
            width: 100%;
            font-size: 1.1rem;
        }
        
        .ai_auto_banner_search_btn {
            padding: 15px 35px;
            background: var(--accent-color);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            font-size: 1.1rem;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .ai_auto_banner_search_btn:hover {
            background: #238d83;
        }
        
        /* Articles Section */
        #ai_auto_home-artice {
            padding: 50px 0;
        }
        
        .ai_auto_section_title {
            position: relative;
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 40px;
            color: var(--primary-color);
            padding-bottom: 15px;
            text-align: center;
        }
        
        .ai_auto_section_title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: var(--accent-color);
            border-radius: 2px;
        }
        
        /* Featured Articles - Magazine Layout */
        #ai_auto_feature-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_featured_main {
            height: 100%;
            overflow: hidden;
            border-radius: 12px;
            position: relative;
        }
        
        .ai_auto_featured_main_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_featured_main:hover .ai_auto_featured_main_img {
            transform: scale(1.05);
        }
        
        .ai_auto_featured_main_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 30px;
        }
        
        .ai_auto_featured_main_title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .ai_auto_featured_main_desc {
            margin-bottom: 20px;
            opacity: 0.9;
        }
        
        .ai_auto_featured_main_meta {
            display: flex;
            gap: 20px;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        .ai_auto_featured_side_list {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        
        .ai_auto_featured_side_item {
            display: flex;
            gap: 20px;
            align-items: center;
            transition: var(--transition);
            padding: 15px;
            border-radius: 8px;
        }
        
        .ai_auto_featured_side_item:hover {
            background: rgba(245, 245, 245, 0.7);
            transform: translateX(5px);
        }
        
        .ai_auto_featured_side_img {
            width: 120px;
            height: 90px;
            object-fit: cover;
            border-radius: 6px;
        }
        
        .ai_auto_featured_side_title {
            font-weight: 600;
            margin-bottom: 5px;
            font-size: 1.1rem;
        }
        
        .ai_auto_featured_side_date {
            font-size: 0.9rem;
            color: var(--secondary-color);
        }
        
        /* Recent Articles - Timeline Layout */
        #ai_auto_last-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_timeline_container {
            position: relative;
            padding-left: 30px;
        }
        
        .ai_auto_timeline_container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 2px;
            background: var(--secondary-color);
        }
        
        .ai_auto_timeline_item {
            position: relative;
            margin-bottom: 40px;
            padding-left: 30px;
        }
        
        .ai_auto_timeline_item::before {
            content: '';
            position: absolute;
            top: 10px;
            left: -9px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-color);
            border: 3px solid white;
            box-shadow: 0 0 0 2px var(--accent-color);
        }
        
        .ai_auto_timeline_date {
            position: absolute;
            top: 0;
            left: -100px;
            background: var(--primary-color);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .ai_auto_timeline_card {
            display: flex;
            gap: 25px;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: var(--transition);
        }
        
        .ai_auto_timeline_card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
        }
        
        .ai_auto_timeline_img {
            width: 250px;
            height: 180px;
            object-fit: cover;
        }
        
        .ai_auto_timeline_content {
            padding: 20px;
            flex: 1;
        }
        
        .ai_auto_timeline_title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary-color);
        }
        
        .ai_auto_timeline_desc {
            margin-bottom: 15px;
            color: #555;
        }
        
        .ai_auto_timeline_author {
            font-weight: 500;
            color: var(--accent-color);
            margin-bottom: 15px;
            display: block;
        }
        
        .ai_auto_timeline_tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        
        .ai_auto_timeline_tag {
            background: rgba(45, 157, 146, 0.1);
            color: var(--accent-color);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        
        .ai_auto_timeline_tag:hover {
            background: var(--accent-color);
            color: white;
        }
        
        /* Recommended Articles - Image Overlay Layout */
        #ai_auto_recommend-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_overlay_container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .ai_auto_overlay_item {
            height: 350px;
            border-radius: 12px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_overlay_img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_overlay_content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(26, 58, 107, 0.9));
            padding: 25px;
            color: white;
            transform: translateY(100px);
            transition: transform 0.4s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }
        
        .ai_auto_overlay_item:hover .ai_auto_overlay_content {
            transform: translateY(0);
        }
        
        .ai_auto_overlay_item:hover .ai_auto_overlay_img {
            transform: scale(1.05);
        }
        
        .ai_auto_overlay_title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .ai_auto_overlay_meta {
            display: flex;
            gap: 20px;
            margin-bottom: 15px;
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        .ai_auto_overlay_tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }
        
        .ai_auto_overlay_tag {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            transition: var(--transition);
            text-decoration: none;
        }
        
        .ai_auto_overlay_tag:hover {
            background: var(--accent-color);
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            padding: 80px 0;
            background: linear-gradient(rgba(26, 58, 107, 0.9), rgba(26, 58, 107, 0.9)), 
                        url('https://images.unsplash.com/photo-1504868584819-f8e8b4b6d7e3?ixlib=rb-4.0.3') center/cover;
            color: white;
            text-align: center;
            margin-bottom: 50px;
            border-radius: 30px;
        }
        
        .ai_auto_subscribe_title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .ai_auto_subscribe_desc {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe_form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
        }
        
        .ai_auto_subscribe_input {
            flex: 1;
            padding: 15px 25px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
        }
        
        .ai_auto_subscribe_btn {
            padding: 15px 40px;
            background: var(--accent-color);
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            font-size: 1.1rem;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .ai_auto_subscribe_btn:hover {
            background: #238d83;
        }
        
        /* Footer Section */
        #ai_auto_footer {
            background: var(--primary-color);
            color: white;
            padding: 70px 0 0;
        }
        
        .ai_auto_footer_container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .ai_auto_footer_title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer_title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent-color);
        }
        
        #ai_auto_footer_desc .ai_auto_footer_desc_text {
            opacity: 0.8;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        
        .ai_auto_footer_links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .ai_auto_footer_link {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .ai_auto_footer_link:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .ai_auto_footer_link i {
            color: var(--accent-color);
            width: 20px;
            text-align: center;
        }
        
        .ai_auto_copyright {
            text-align: center;
            padding: 25px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.7;
        }
        
        /* Chemistry-themed decorative elements */
        .ai_auto_molecule {
            position: absolute;
            opacity: 0.05;
            z-index: -1;
        }
        
        .ai_auto_molecule1 {
            top: 20%;
            left: 5%;
            width: 150px;
            animation: float 15s infinite linear;
        }
        
        .ai_auto_molecule2 {
            top: 60%;
            right: 10%;
            width: 100px;
            animation: float 18s infinite linear reverse;
        }
        
        .ai_auto_molecule3 {
            bottom: 20%;
            left: 20%;
            width: 120px;
            animation: float 12s infinite linear;
        }
        
        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
            100% { transform: translateY(0) rotate(360deg); }
        }
        
        /* Responsive adjustments */
        @media (max-width: 992px) {
            .ai_auto_navbar_container {
                flex-direction: column;
                gap: 20px;
            }
            
            .ai_auto_search_form {
                margin-left: 0;
                width: 100%;
                max-width: 100%;
            }
            
            .ai_auto_timeline_date {
                position: static;
                margin-bottom: 10px;
                display: inline-block;
            }
            
            .ai_auto_timeline_card {
                flex-direction: column;
            }
            
            .ai_auto_timeline_img {
                width: 100%;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_banner_title {
                font-size: 2.2rem;
            }
            
            .ai_auto_subscribe_form,
            .ai_auto_banner_search {
                flex-direction: column;
            }
            
            .ai_auto_banner_search_input,
            .ai_auto_subscribe_input,
            .ai_auto_banner_search_btn,
            .ai_auto_subscribe_btn {
                border-radius: 50px;
                width: 100%;
                margin-bottom: 10px;
            }
        }