:root {
            --ai_auto_primary: #1a4b7a;
            --ai_auto_secondary: #4CAF50;
            --ai_auto_accent: #F44336;
            --ai_auto_gray: #607D8B;
            --ai_auto_light: #f8f9fa;
            --ai_auto_dark: #212529;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            color: #333;
            background-color: #fafcff;
            line-height: 1.6;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Merriweather', serif;
            font-weight: 700;
        }
        
        /* Navigation Styles */
        #ai_auto_navbar {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 0.8rem 0;
        }
        
        .ai_auto_navbar-brand {
            color: var(--ai_auto_primary);
            font-weight: 700;
            font-size: 1.8rem;
            font-family: 'Merriweather', serif;
        }
        
        .ai_auto_navbar-brand span {
            color: var(--ai_auto_secondary);
        }
        
        .ai_auto_nav-link {
            color: var(--ai_auto_dark);
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        
        .ai_auto_nav-link:hover, .ai_auto_nav-link.active {
            background-color: rgba(26, 75, 122, 0.1);
            color: var(--ai_auto_primary);
        }
        
        .ai_auto_search-form {
            position: relative;
        }
        
        .ai_auto_search-btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: var(--ai_auto_gray);
        }
        
        /* Banner Styles */
        #ai_auto_banner {
            background: linear-gradient(rgba(26, 75, 122, 0.9), rgba(26, 75, 122, 0.8)), url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?q=80&w=2070');
            background-size: cover;
            background-position: center;
            padding: 6rem 0;
            color: white;
        }
        
        .ai_auto_banner-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_banner-subtitle {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
        }
        
        .ai_auto_search-input {
            padding: 1rem 1.5rem;
            border-radius: 50px;
            border: none;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        /* Article Section Styles */
        #ai_auto_home-artice {
            padding: 5rem 0;
            background-color: #fff;
        }
        
        .ai_auto_section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 2.5rem;
            color: var(--ai_auto_primary);
            font-weight: 700;
        }
        
        .ai_auto_section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--ai_auto_secondary);
            border-radius: 2px;
        }
        
        /* Feature Articles - Magazine Layout */
        #ai_auto_feature-article .ai_auto_main-article {
            position: relative;
            height: 500px;
            overflow: hidden;
            border-radius: 10px;
            margin-bottom: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        #ai_auto_feature-article .ai_auto_main-article-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        #ai_auto_feature-article .ai_auto_main-article-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 2rem;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            color: white;
        }
        
        #ai_auto_feature-article .ai_auto_main-article:hover .ai_auto_main-article-img {
            transform: scale(1.05);
        }
        
        #ai_auto_feature-article .ai_auto_side-articles {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        
        #ai_auto_feature-article .ai_auto_side-article {
            display: flex;
            gap: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #eee;
        }
        
        #ai_auto_feature-article .ai_auto_side-article:last-child {
            border-bottom: none;
        }
        
        #ai_auto_feature-article .ai_auto_side-article-img {
            width: 150px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
        }
        
        /* Recent Articles - Timeline Layout */
        #ai_auto_last-article {
            margin: 5rem 0;
        }
        
        .ai_auto_timeline-card {
            position: relative;
            padding-left: 30px;
            margin-bottom: 3rem;
            border-left: 2px solid var(--ai_auto_secondary);
        }
        
        .ai_auto_timeline-date {
            position: absolute;
            left: -15px;
            top: 0;
            background: var(--ai_auto_primary);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            font-weight: 500;
            font-size: 0.9rem;
        }
        
        .ai_auto_timeline-content {
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            padding: 1.5rem;
            display: flex;
            gap: 1.5rem;
        }
        
        .ai_auto_timeline-img {
            width: 250px;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
        }
        
        .ai_auto_timeline-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1rem;
        }
        
        .ai_auto_timeline-tag {
            background: rgba(76, 175, 80, 0.1);
            color: var(--ai_auto_secondary);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_timeline-tag:hover {
            background: var(--ai_auto_secondary);
            color: white;
        }
        
        /* Recommended Articles - Card Waterfall Layout */
        #ai_auto_recommend-article {
            margin-top: 5rem;
        }
        
        .ai_auto_waterfall-container {
            column-count: 3;
            column-gap: 2rem;
        }
        
        .ai_auto_waterfall-card {
            break-inside: avoid;
            margin-bottom: 2rem;
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 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: 1.5rem;
        }
        
        .ai_auto_waterfall-author {
            color: var(--ai_auto_gray);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            padding: 5rem 0;
            background: linear-gradient(135deg, var(--ai_auto_primary), #0d2a4a);
            color: white;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .ai_auto_subscribe-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-input {
            padding: 1rem 1.5rem;
            border-radius: 50px;
            border: none;
            width: 100%;
        }
        
        .ai_auto_subscribe-btn {
            background: var(--ai_auto_secondary);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 1.5rem;
        }
        
        .ai_auto_subscribe-btn:hover {
            background: #3d8b40;
            transform: translateY(-3px);
        }
        
        /* Footer Styles */
        #ai_auto_footer {
            background: var(--ai_auto_dark);
            color: #ddd;
            padding-top: 4rem;
        }
        
        .ai_auto_footer-title {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        
        .ai_auto_footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--ai_auto_secondary);
        }
        
        .ai_auto_footer-link {
            display: block;
            color: #bbb;
            text-decoration: none;
            margin-bottom: 0.8rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_footer-link:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 1rem;
        }
        
        .ai_auto_contact-icon {
            color: var(--ai_auto_secondary);
            margin-top: 4px;
        }
        
        .ai_auto_copyright {
            background: rgba(0, 0, 0, 0.2);
            padding: 1.5rem 0;
            margin-top: 3rem;
            text-align: center;
            color: #aaa;
        }
        
        /* Responsive Adjustments */
        @media (max-width: 992px) {
            .ai_auto_waterfall-container {
                column-count: 2;
            }
            
            #ai_auto_feature-article .ai_auto_side-article {
                flex-direction: column;
            }
            
            #ai_auto_feature-article .ai_auto_side-article-img {
                width: 100%;
            }
            
            .ai_auto_timeline-content {
                flex-direction: column;
            }
            
            .ai_auto_timeline-img {
                width: 100%;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_waterfall-container {
                column-count: 1;
            }
            
            .ai_auto_banner-title {
                font-size: 2.5rem;
            }
            
            .ai_auto_banner-subtitle {
                font-size: 1.1rem;
            }
        }