:root {
            --primary-color: #1a3a6c;
            --secondary-color: #4a90e2;
            --accent1: #50c878;
            --accent2: #6a5acd;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
        }
        
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: var(--dark-text);
            background-color: #f9fbfd;
        }
        
        /* Navigation */
        #ai_auto_navbar {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            padding: 0.8rem 0;
        }
        
        #ai_auto_navbar .ai_auto_navbar-brand {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        
        #ai_auto_navbar .ai_auto_nav-link {
            color: var(--primary-color);
            font-weight: 500;
            margin: 0 0.8rem;
            padding: 0.5rem 0;
            position: relative;
        }
        
        #ai_auto_navbar .ai_auto_nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: width 0.3s ease;
        }
        
        #ai_auto_navbar .ai_auto_nav-link:hover::after,
        #ai_auto_navbar .ai_auto_nav-link.active::after {
            width: 100%;
        }
        
        #ai_auto_navbar .ai_auto_search-form {
            position: relative;
            max-width: 300px;
        }
        
        #ai_auto_navbar .ai_auto_search-form .form-control {
            border-radius: 30px;
            padding-left: 40px;
            border: 1px solid #dee2e6;
        }
        
        #ai_auto_navbar .ai_auto_search-form .ai_auto_search-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #6c757d;
        }
        
        /* Banner Section */
        #ai_auto_banner {
            background: linear-gradient(135deg, rgba(26,58,108,0.9) 0%, rgba(74,144,226,0.85) 100%), url('https://images.unsplash.com/photo-1627552245712-2d19e8643903?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            padding: 6rem 0;
            color: white;
            text-align: center;
        }
        
        #ai_auto_banner .ai_auto_banner-title {
            font-size: 3.2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        
        #ai_auto_banner .ai_auto_banner-desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 3rem;
            opacity: 0.9;
        }
        
        #ai_auto_banner .ai_auto_banner-search {
            max-width: 700px;
            margin: 0 auto;
        }
        
        #ai_auto_banner .ai_auto_banner-search .form-control {
            height: 60px;
            padding-left: 30px;
            font-size: 1.1rem;
            border-radius: 50px;
            border: none;
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }
        
        #ai_auto_banner .ai_auto_banner-search .btn {
            position: absolute;
            right: 8px;
            top: 8px;
            height: 44px;
            padding: 0 30px;
            border-radius: 50px;
            background-color: var(--accent1);
            border: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        #ai_auto_banner .ai_auto_banner-search .btn:hover {
            background-color: #3db363;
            transform: translateY(-2px);
        }
        
        /* Articles Section */
        #ai_auto_home-artice {
            padding: 5rem 0;
            background-color: var(--light-bg);
        }
        
        .ai_auto_section-title {
            text-align: center;
            margin-bottom: 3.5rem;
            position: relative;
        }
        
        .ai_auto_section-title h2 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            display: inline-block;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .ai_auto_section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--accent1), var(--accent2));
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        
        /* Featured Articles */
        #ai_auto_feature-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_feature-card {
            border-radius: 15px;
            overflow: hidden;
            background: white;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.4s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .ai_auto_feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }
        
        .ai_auto_feature-card .ai_auto_card-img {
            height: 220px;
            width: 100%;
            overflow: hidden;
        }
        
        .ai_auto_feature-card .ai_auto_card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_feature-card:hover .ai_auto_card-img img {
            transform: scale(1.05);
        }
        
        .ai_auto_feature-card .ai_auto_card-body {
            padding: 1.8rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .ai_auto_feature-card .ai_auto_card-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        
        .ai_auto_feature-card .ai_auto_card-desc {
            color: #6c757d;
            margin-bottom: 1.5rem;
            flex: 1;
        }
        
        .ai_auto_feature-card .ai_auto_card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
            color: #6c757d;
        }
        
        .ai_auto_feature-card .ai_auto_card-author {
            font-weight: 600;
            color: var(--secondary-color);
        }
        
        .ai_auto_feature-card .ai_auto_card-labels {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 1rem;
        }
        
        .ai_auto_feature-card .ai_auto_label {
            background-color: rgba(106, 90, 205, 0.1);
            color: var(--accent2);
            font-size: 0.8rem;
            padding: 0.3rem 0.8rem;
            border-radius: 30px;
            transition: all 0.2s ease;
        }
        
        .ai_auto_feature-card .ai_auto_label:hover {
            background-color: var(--accent2);
            color: white;
            text-decoration: none;
        }
        
        /* Recent Articles */
        #ai_auto_last-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .ai_auto_timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background: linear-gradient(to bottom, var(--accent1), var(--accent2));
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
            border-radius: 2px;
        }
        
        .ai_auto_timeline-item {
            padding: 20px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        
        .ai_auto_timeline-item:nth-child(odd) {
            left: 0;
        }
        
        .ai_auto_timeline-item:nth-child(even) {
            left: 50%;
        }
        
        .ai_auto_timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: white;
            border: 4px solid var(--accent1);
            top: 30px;
            border-radius: 50%;
            z-index: 1;
        }
        
        .ai_auto_timeline-item:nth-child(odd)::after {
            right: -12px;
        }
        
        .ai_auto_timeline-item:nth-child(even)::after {
            left: -12px;
        }
        
        .ai_auto_timeline-content {
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            display: flex;
            gap: 20px;
        }
        
        .ai_auto_timeline-img {
            flex: 0 0 150px;
            height: 120px;
            border-radius: 8px;
            overflow: hidden;
        }
        
        .ai_auto_timeline-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .ai_auto_timeline-text {
            flex: 1;
        }
        
        .ai_auto_timeline-text h3 {
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .ai_auto_timeline-text .ai_auto_timeline-meta {
            font-size: 0.9rem;
            color: #6c757d;
            margin-bottom: 0.8rem;
        }
        
        /* Recommended Articles */
        #ai_auto_recommend-article {
            margin-bottom: 3rem;
        }
        
        .ai_auto_masonry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
        }
        
        .ai_auto_masonry-item {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
        }
        
        .ai_auto_masonry-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 35px rgba(0,0,0,0.15);
        }
        
        .ai_auto_masonry-img {
            height: 200px;
            overflow: hidden;
            display: block;
        }
        
        .ai_auto_masonry-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_masonry-item:hover .ai_auto_masonry-img img {
            transform: scale(1.05);
        }
        
        .ai_auto_masonry-content {
            padding: 1.5rem;
        }
        
        .ai_auto_masonry-content h3 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            color: var(--primary-color);
        }
        
        .ai_auto_masonry-content p {
            color: #6c757d;
            margin-bottom: 1.2rem;
        }
        
        .ai_auto_masonry-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            color: #6c757d;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            padding: 5rem 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
        }
        
        .ai_auto_subscribe-desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 15px;
        }
        
        .ai_auto_subscribe-form .form-control {
            height: 55px;
            border-radius: 50px;
            border: none;
            padding-left: 25px;
            font-size: 1.1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .ai_auto_subscribe-form .btn {
            background-color: var(--accent1);
            color: white;
            font-weight: 600;
            border: none;
            border-radius: 50px;
            padding: 0 35px;
            transition: all 0.3s ease;
        }
        
        .ai_auto_subscribe-form .btn:hover {
            background-color: #3db363;
            transform: translateY(-2px);
        }
        
        /* Footer */
        #ai_auto_footer {
            background-color: #0d1b2f;
            color: #a0aec0;
            padding-top: 4rem;
        }
        
        .ai_auto_footer-column h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer-column h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background: linear-gradient(to right, var(--accent1), var(--accent2));
            border-radius: 2px;
        }
        
        #ai_auto_footer_desc .ai_auto_footer-brand {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1rem;
            display: block;
        }
        
        #ai_auto_footer_desc p {
            line-height: 1.7;
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .ai_auto_footer-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .ai_auto_footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .ai_auto_contact-info {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_contact-info li {
            margin-bottom: 1.2rem;
            display: flex;
            align-items: flex-start;
        }
        
        .ai_auto_contact-info i {
            margin-right: 15px;
            color: var(--accent1);
            font-size: 1.2rem;
            min-width: 20px;
        }
        
        .ai_auto_copyright {
            background-color: #080f1c;
            padding: 1.5rem 0;
            margin-top: 4rem;
            text-align: center;
            color: #718096;
        }
        
        /* Responsive adjustments */
        @media (max-width: 992px) {
            .ai_auto_timeline::after {
                left: 31px;
            }
            
            .ai_auto_timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
                left: 0 !important;
            }
            
            .ai_auto_timeline-item::after {
                left: 21px !important;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_subscribe-form {
                flex-direction: column;
            }
            
            .ai_auto_footer-column {
                margin-bottom: 2.5rem;
            }
            
            #ai_auto_banner .ai_auto_banner-title {
                font-size: 2.5rem;
            }
            
            .ai_auto_timeline-content {
                flex-direction: column;
            }
            
            .ai_auto_timeline-img {
                width: 100%;
                height: 180px;
            }
        }
        
        @media (max-width: 576px) {
            #ai_auto_banner {
                padding: 4rem 0;
            }
            
            #ai_auto_banner .ai_auto_banner-title {
                font-size: 2rem;
            }
            
            #ai_auto_banner .ai_auto_banner-desc {
                font-size: 1rem;
            }
            
            .ai_auto_section-title h2 {
                font-size: 2rem;
            }
        }