:root {
            --primary-color: #3D7B80;
            --secondary-color: #81B29A;
            --accent-color1: #F2CC8F;
            --accent-color2: #E07A5F;
            --light-bg: #F8F9FA;
            --dark-text: #212529;
        }
        
        body {
            font-family: 'Open Sans', sans-serif;
            color: var(--dark-text);
            background-color: #fff;
        }
        
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
        }
        
        /* Navigation */
        #ai_auto_navbar {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .ai_auto_navbar-brand {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        
        .ai_auto_nav-link {
            font-weight: 500;
            color: var(--dark-text);
            margin: 0 0.5rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_nav-link:hover {
            color: var(--primary-color);
        }
        
        .ai_auto_search-form {
            position: relative;
        }
        
        .ai_auto_search-input {
            border-radius: 20px;
            padding-right: 40px;
            border: 1px solid #ddd;
        }
        
        .ai_auto_search-btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--primary-color);
        }
        
        /* Banner Section */
        #ai_auto_banner {
            background: linear-gradient(rgba(61, 123, 128, 0.9), url('https://images.unsplash.com/photo-1532094349884-543bc11b234d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
            background-size: cover;
            background-position: center;
            padding: 6rem 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_banner-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        
        .ai_auto_banner-info {
            font-size: 1.2rem;
            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 {
            height: 55px;
            border-radius: 30px;
            padding: 0 25px;
            font-size: 1.1rem;
        }
        
        .ai_auto_banner-search .btn {
            position: absolute;
            right: 5px;
            top: 5px;
            height: 45px;
            border-radius: 25px;
            padding: 0 25px;
            background: var(--accent-color2);
            border: none;
        }
        
        /* Article Section */
        #ai_auto_home-artice {
            padding: 5rem 0;
            background-color: var(--light-bg);
        }
        
        .ai_auto_section-title {
            position: relative;
            margin-bottom: 2.5rem;
            padding-bottom: 1rem;
            color: var(--primary-color);
        }
        
        .ai_auto_section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--accent-color1);
        }
        
        /* Featured Articles - Timeline Cards */
        #ai_auto_feature-article .ai_auto_timeline-card {
            position: relative;
            margin-bottom: 2rem;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            background: white;
        }
        
        .ai_auto_timeline-card-header {
            background: var(--secondary-color);
            color: white;
            padding: 1rem 1.5rem;
            font-weight: 600;
        }
        
        .ai_auto_timeline-card-body {
            display: flex;
            padding: 0;
            position: relative;
        }
        
        .ai_auto_timeline-card-body:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary-color);
        }
        
        .ai_auto_timeline-card-img {
            flex: 0 0 40%;
            overflow: hidden;
        }
        
        .ai_auto_timeline-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_timeline-card-content {
            flex: 0 0 60%;
            padding: 1.5rem;
        }
        
        .ai_auto_timeline-card-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        
        .ai_auto_timeline-card-desc {
            margin-bottom: 1.5rem;
            color: #666;
        }
        
        .ai_auto_article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
            color: #777;
        }
        
        .ai_auto_article-labels {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .ai_auto_label {
            background: var(--light-bg);
            color: var(--primary-color);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_label:hover {
            background: var(--primary-color);
            color: white;
        }
        
        /* Recent Articles - Waterfall Layout */
        #ai_auto_last-article {
            margin: 4rem 0;
        }
        
        .ai_auto_waterfall-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        
        .ai_auto_waterfall-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            background: white;
            transition: transform 0.3s ease;
        }
        
        .ai_auto_waterfall-card:hover {
            transform: translateY(-10px);
        }
        
        .ai_auto_waterfall-img {
            height: 200px;
            overflow: hidden;
        }
        
        .ai_auto_waterfall-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .ai_auto_waterfall-content {
            padding: 1.5rem;
        }
        
        .ai_auto_waterfall-title {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
            color: var(--primary-color);
        }
        
        /* Recommended Articles - Magazine Layout */
        #ai_auto_recommend-article {
            margin-top: 4rem;
        }
        
        .ai_auto_magazine-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        
        .ai_auto_featured-article {
            grid-column: 1;
            grid-row: 1 / span 2;
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            height: 100%;
            min-height: 600px;
        }
        
        .ai_auto_featured-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .ai_auto_featured-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 2rem;
        }
        
        .ai_auto_featured-title {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        
        .ai_auto_side-articles {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        
        .ai_auto_side-article {
            display: flex;
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .ai_auto_side-img {
            flex: 0 0 40%;
        }
        
        .ai_auto_side-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .ai_auto_side-content {
            flex: 0 0 60%;
            padding: 1.5rem;
        }
        
        .ai_auto_side-title {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
            color: var(--primary-color);
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            padding: 5rem 0;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .ai_auto_subscribe-info {
            max-width: 600px;
            margin: 0 auto 2.5rem;
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            max-width: 500px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-input {
            height: 55px;
            border-radius: 30px;
            padding: 0 25px;
            font-size: 1.1rem;
            border: none;
        }
        
        .ai_auto_subscribe-btn {
            height: 55px;
            border-radius: 30px;
            padding: 0 30px;
            background: var(--accent-color1);
            color: var(--dark-text);
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_subscribe-btn:hover {
            background: white;
            transform: translateY(-3px);
        }
        
        /* Footer */
        #ai_auto_footer {
            background: #222;
            color: #ddd;
            padding: 4rem 0 0;
        }
        
        .ai_auto_footer-section {
            margin-bottom: 2.5rem;
        }
        
        .ai_auto_footer-title {
            color: white;
            font-size: 1.25rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.75rem;
        }
        
        .ai_auto_footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent-color1);
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-links li {
            margin-bottom: 0.75rem;
        }
        
        .ai_auto_footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_footer-links a:hover {
            color: var(--accent-color1);
            padding-left: 5px;
        }
        
        .ai_auto_contact-item {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
        }
        
        .ai_auto_contact-icon {
            margin-right: 10px;
            color: var(--accent-color1);
        }
        
        .ai_auto_footer-bottom {
            background: #111;
            padding: 1.5rem 0;
            text-align: center;
            font-size: 0.9rem;
        }
        
        /* Hover Effects */
        .ai_auto_article-link {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        
        .ai_auto_article-link:hover {
            color: var(--primary-color);
        }
        
        .ai_auto_img-hover:hover img {
            transform: scale(1.05);
        }
        
        /* Responsive Adjustments */
        @media (max-width: 992px) {
            .ai_auto_magazine-layout {
                grid-template-columns: 1fr;
            }
            
            .ai_auto_featured-article {
                grid-row: auto;
                min-height: 400px;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_timeline-card-body {
                flex-direction: column;
            }
            
            .ai_auto_timeline-card-img {
                height: 250px;
            }
            
            .ai_auto_banner-title {
                font-size: 2.2rem;
            }
            
            .ai_auto_subscribe-title {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 576px) {
            .ai_auto_side-article {
                flex-direction: column;
            }
            
            .ai_auto_side-img {
                height: 200px;
            }
        }