:root {
            --ai_auto_primary: #2E7D32;
            --ai_auto_primary-light: #4CAF50;
            --ai_auto_accent: #2196F3;
            --ai_auto_highlight: #FFC107;
            --ai_auto_text-dark: #1a1a1a;
            --ai_auto_text-light: #f8f9fa;
            --ai_auto_bg-light: #f8f9fa;
            --ai_auto_bg-dark: #1a1a1a;
        }
        
        body {
            font-family: 'Georgia', serif;
            color: var(--ai_auto_text-dark);
            background-color: #f8f9fa;
            line-height: 1.6;
        }
        
        /* Navigation */
        #ai_auto_navbar {
            background-color: var(--ai_auto_primary);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .ai_auto_navbar-title {
            font-family: 'Times New Roman', serif;
            font-weight: 700;
            letter-spacing: 1px;
            color: white;
            font-size: 1.8rem;
        }
        
        .ai_auto_nav-link {
            color: rgba(255,255,255,0.85) !important;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            padding: 0.5rem 1rem !important;
        }
        
        .ai_auto_nav-link:hover,
        .ai_auto_nav-link.active {
            color: white !important;
        }
        
        .ai_auto_nav-link:hover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--ai_auto_highlight);
        }
        
        .ai_auto_search-form .form-control {
            border-radius: 20px 0 0 20px;
            border: none;
            padding: 0.5rem 1.25rem;
        }
        
        .ai_auto_search-form .btn {
            border-radius: 0 20px 20px 0;
            background-color: var(--ai_auto_highlight);
            color: var(--ai_auto_text-dark);
            border: none;
            padding: 0.5rem 1.25rem;
        }
        
        /* Banner Section */
        #ai_auto_banner {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                        url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        
        .ai_auto_banner-title {
            font-size: 3.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        
        .ai_auto_banner-info {
            font-size: 1.25rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        
        .ai_auto_banner-search {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .ai_auto_banner-search .form-control {
            padding: 1rem 1.5rem;
            border-radius: 30px;
            border: none;
            font-size: 1.1rem;
        }
        
        .ai_auto_banner-search .btn {
            position: absolute;
            right: 5px;
            top: 5px;
            bottom: 5px;
            padding: 0 1.5rem;
            border-radius: 30px;
            background-color: var(--ai_auto_primary-light);
            color: white;
            border: none;
        }
        
        /* Article Sections */
        #ai_auto_home-artice {
            padding: 80px 0;
        }
        
        .ai_auto_section-header {
            position: relative;
            margin-bottom: 2.5rem;
            text-align: center;
        }
        
        .ai_auto_section-title {
            font-size: 2.5rem;
            font-weight: 700;
            display: inline-block;
            background-color: var(--ai_auto_primary);
            color: white;
            padding: 0.5rem 2rem;
            border-radius: 30px;
            margin-bottom: 0;
        }
        
        /* Featured Articles - Magazine Style */
        #ai_auto_feature-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_featured-main {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            margin-bottom: 30px;
            height: 100%;
            display: block;
        }
        
        .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));
            padding: 30px;
            color: white;
        }
        
        .ai_auto_featured-main-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: white;
        }
        
        .ai_auto_featured-list {
            height: 100%;
        }
        
        .ai_auto_featured-item {
            display: flex;
            margin-bottom: 25px;
            border-bottom: 1px solid #eaeaea;
            padding-bottom: 25px;
        }
        
        .ai_auto_featured-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        
        .ai_auto_featured-item-img {
            width: 150px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
            margin-right: 20px;
        }
        
        .ai_auto_featured-item-content {
            flex: 1;
        }
        
        .ai_auto_featured-item-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        
        .ai_auto_featured-item-meta {
            font-size: 0.85rem;
            color: #6c757d;
            margin-bottom: 0.5rem;
        }
        
        /* Latest Articles - Timeline Style */
        #ai_auto_last-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_timeline-card {
            position: relative;
            border-left: 2px solid var(--ai_auto_primary);
            padding: 30px 0 30px 30px;
            margin-bottom: 30px;
        }
        
        .ai_auto_timeline-card::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 40px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background-color: var(--ai_auto_primary);
        }
        
        .ai_auto_timeline-date {
            background-color: var(--ai_auto_primary-light);
            color: white;
            display: inline-block;
            padding: 0.5rem 1.5rem;
            border-radius: 20px;
            font-weight: 500;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_timeline-content {
            display: flex;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            overflow: hidden;
        }
        
        .ai_auto_timeline-img {
            width: 200px;
            height: 180px;
            object-fit: cover;
        }
        
        .ai_auto_timeline-details {
            flex: 1;
            padding: 25px;
        }
        
        .ai_auto_timeline-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .ai_auto_timeline-desc {
            color: #555;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_timeline-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }
        
        .ai_auto_timeline-author {
            font-weight: 500;
            color: var(--ai_auto_primary);
        }
        
        .ai_auto_timeline-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        
        .ai_auto_timeline-tag {
            background-color: #e8f5e9;
            color: var(--ai_auto_primary);
            padding: 0.25rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_timeline-tag:hover {
            background-color: var(--ai_auto_primary);
            color: white;
            text-decoration: none;
        }
        
        /* Recommended Articles - Waterfall Style */
        #ai_auto_recommend-article {
            margin-bottom: 5rem;
        }
        
        .ai_auto_waterfall-container {
            column-count: 3;
            column-gap: 30px;
        }
        
        @media (max-width: 992px) {
            .ai_auto_waterfall-container {
                column-count: 2;
            }
        }
        
        @media (max-width: 576px) {
            .ai_auto_waterfall-container {
                column-count: 1;
            }
        }
        
        .ai_auto_waterfall-card {
            display: inline-block;
            width: 100%;
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 30px;
            break-inside: avoid;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .ai_auto_waterfall-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
        .ai_auto_waterfall-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .ai_auto_waterfall-content {
            padding: 25px;
        }
        
        .ai_auto_waterfall-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        
        .ai_auto_waterfall-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: #6c757d;
        }
        
        .ai_auto_waterfall-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 1rem;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            background-color: var(--ai_auto_primary);
            padding: 80px 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_subscribe-info {
            font-size: 1.25rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-form .form-control {
            padding: 1rem 1.5rem;
            border-radius: 30px;
            border: none;
            font-size: 1.1rem;
        }
        
        .ai_auto_subscribe-form .btn {
            position: absolute;
            right: 5px;
            top: 5px;
            bottom: 5px;
            padding: 0 1.5rem;
            border-radius: 30px;
            background-color: var(--ai_auto_highlight);
            color: var(--ai_auto_text-dark);
            border: none;
            font-weight: 500;
        }
        
        /* Footer */
        #ai_auto_footer {
            background-color: var(--ai_auto_bg-dark);
            color: rgba(255,255,255,0.7);
            padding-top: 60px;
        }
        
        .ai_auto_footer-title {
            color: white;
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_footer-desc {
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_footer-logo {
            font-size: 2rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1rem;
            display: inline-block;
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding-left: 0;
        }
        
        .ai_auto_footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .ai_auto_footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_footer-contact-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1rem;
        }
        
        .ai_auto_footer-contact-icon {
            margin-right: 10px;
            color: var(--ai_auto_highlight);
        }
        
        .ai_auto_footer-bottom {
            background-color: rgba(0,0,0,0.2);
            padding: 20px 0;
            margin-top: 60px;
            text-align: center;
        }
        
        /* Utility Classes */
        .ai_auto_text-accent {
            color: var(--ai_auto_accent);
        }
        
        .ai_auto_text-highlight {
            color: var(--ai_auto_highlight);
        }
        
        .ai_auto_btn-primary {
            background-color: var(--ai_auto_primary);
            border-color: var(--ai_auto_primary);
        }
        
        .ai_auto_btn-primary:hover {
            background-color: #1e5a21;
            border-color: #1e5a21;
        }
        
        .ai_auto_link {
            color: var(--ai_auto_primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_link:hover {
            color: var(--ai_auto_primary-light);
            text-decoration: underline;
        }
        
        .ai_auto_article-title {
            color: var(--ai_auto_text-dark);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_article-title:hover {
            color: var(--ai_auto_primary);
        }