:root {
            --primary-color: #1a3d7c;
            --accent-1: #4db6ac;
            --accent-2: #81c784;
            --accent-3: #ffb74d;
            --dark-bg: #0d1b2a;
            --light-text: #f8f9fa;
            --dark-text: #212529;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            background-color: #f8fafc;
            color: var(--dark-text);
            line-height: 1.6;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
        }
        
        /* Navigation Bar */
        #ai_auto_navbar {
            background-color: var(--primary-color);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .ai_auto_navbar-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        .ai_auto_site-title {
            color: var(--light-text);
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .ai_auto_site-title i {
            margin-right: 10px;
            color: var(--accent-3);
        }
        
        .ai_auto_nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .ai_auto_nav-item {
            margin: 0 15px;
        }
        
        .ai_auto_nav-link {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            font-size: 1rem;
            font-weight: 500;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }
        
        .ai_auto_nav-link:hover {
            color: var(--light-text);
        }
        
        .ai_auto_nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-2);
            transition: width 0.3s;
        }
        
        .ai_auto_nav-link:hover::after {
            width: 100%;
        }
        
        .ai_auto_search-form {
            display: flex;
            align-items: center;
        }
        
        .ai_auto_search-input {
            padding: 8px 15px;
            border: none;
            border-radius: 30px 0 0 30px;
            outline: none;
            font-size: 0.9rem;
            width: 220px;
        }
        
        .ai_auto_search-btn {
            background-color: var(--accent-1);
            color: var(--light-text);
            border: none;
            border-radius: 0 30px 30px 0;
            padding: 8px 15px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .ai_auto_search-btn:hover {
            background-color: var(--accent-2);
        }
        
        /* Banner Section */
        #ai_auto_banner {
            background: linear-gradient(rgba(26, 61, 124, 0.85), rgba(26, 61, 124, 0.7)), 
                        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;
            text-align: center;
            color: var(--light-text);
            margin-bottom: 3rem;
        }
        
        .ai_auto_banner-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        .ai_auto_banner-title {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .ai_auto_banner-desc {
            font-size: 1.2rem;
            margin-bottom: 2.5rem;
            opacity: 0.9;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .ai_auto_banner-search {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
        }
        
        .ai_auto_banner-search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
            outline: none;
        }
        
        .ai_auto_banner-search-btn {
            background-color: var(--accent-3);
            color: var(--dark-text);
            border: none;
            padding: 0 25px;
            font-weight: 600;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .ai_auto_banner-search-btn:hover {
            background-color: #ffca7d;
        }
        
        /* Articles Section */
        #ai_auto_home-artice {
            max-width: 1200px;
            margin: 0 auto 4rem;
            padding: 0 1.5rem;
        }
        
        .ai_auto_section-title {
            text-align: center;
            margin-bottom: 2.5rem;
            position: relative;
            padding-bottom: 15px;
        }
        
        .ai_auto_section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--accent-1);
        }
        
        /* Featured Articles - Magazine Layout */
        #ai_auto_feature-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_feature-main {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            margin-bottom: 30px;
            transition: transform 0.3s;
            height: 100%;
        }
        
        .ai_auto_feature-main:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_feature-main-img {
            width: 100%;
            height: 350px;
            object-fit: cover;
            display: block;
        }
        
        .ai_auto_feature-main-content {
            padding: 25px;
        }
        
        .ai_auto_feature-main-title {
            font-size: 1.8rem;
            margin-bottom: 15px;
        }
        
        .ai_auto_feature-main-title a {
            color: var(--primary-color);
            text-decoration: none;
        }
        
        .ai_auto_feature-main-title a:hover {
            text-decoration: underline;
        }
        
        .ai_auto_feature-main-desc {
            color: #555;
            margin-bottom: 20px;
        }
        
        .ai_auto_feature-main-meta {
            display: flex;
            justify-content: space-between;
            color: #777;
            font-size: 0.9rem;
        }
        
        .ai_auto_feature-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .ai_auto_feature-side-item {
            display: flex;
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        
        .ai_auto_feature-side-item:hover {
            transform: translateY(-3px);
        }
        
        .ai_auto_feature-side-img {
            width: 250px;
            height: 180px;
            object-fit: cover;
        }
        
        .ai_auto_feature-side-content {
            padding: 20px;
            width: 60%;
        }
        
        .ai_auto_feature-side-title {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        
        .ai_auto_feature-side-title a {
            color: var(--dark-text);
            text-decoration: none;
        }
        
        .ai_auto_feature-side-title a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        
        .ai_auto_feature-side-meta {
            color: #777;
            font-size: 0.85rem;
            margin-top: 10px;
        }
        
        /* Last Articles - Card Waterfall Layout */
        #ai_auto_last-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_waterfall-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .ai_auto_waterfall-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
        }
        
        .ai_auto_waterfall-card:hover {
            transform: translateY(-7px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .ai_auto_waterfall-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .ai_auto_waterfall-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .ai_auto_waterfall-title {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }
        
        .ai_auto_waterfall-title a {
            color: var(--primary-color);
            text-decoration: none;
        }
        
        .ai_auto_waterfall-title a:hover {
            text-decoration: underline;
        }
        
        .ai_auto_waterfall-desc {
            color: #555;
            margin-bottom: 15px;
            flex: 1;
        }
        
        .ai_auto_waterfall-labels {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 10px;
        }
        
        .ai_auto_waterfall-label {
            background-color: var(--accent-1);
            color: white;
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 20px;
            text-decoration: none;
            transition: background-color 0.3s;
        }
        
        .ai_auto_waterfall-label:hover {
            background-color: var(--primary-color);
        }
        
        .ai_auto_waterfall-meta {
            display: flex;
            justify-content: space-between;
            color: #777;
            font-size: 0.85rem;
            margin-top: 15px;
            border-top: 1px solid #eee;
            padding-top: 15px;
        }
        
        /* Recommended Articles - Image Background Cards */
        #ai_auto_recommend-article {
            margin-bottom: 4rem;
        }
        
        .ai_auto_recommend-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .ai_auto_recommend-card {
            height: 300px;
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }
        
        .ai_auto_recommend-card:hover {
            transform: scale(1.03);
        }
        
        .ai_auto_recommend-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .ai_auto_recommend-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
            padding: 20px;
            color: white;
            transition: all 0.4s;
            opacity: 0.9;
        }
        
        .ai_auto_recommend-title {
            font-size: 1.3rem;
            margin-bottom: 10px;
        }
        
        .ai_auto_recommend-title a {
            color: white;
            text-decoration: none;
        }
        
        .ai_auto_recommend-meta {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            background-color: var(--primary-color);
            padding: 5rem 0;
            color: var(--light-text);
            text-align: center;
        }
        
        .ai_auto_subscribe-container {
            max-width: 700px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }
        
        .ai_auto_subscribe-info {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
            outline: none;
        }
        
        .ai_auto_subscribe-btn {
            background-color: var(--accent-3);
            color: var(--dark-text);
            border: none;
            padding: 0 25px;
            font-weight: 600;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .ai_auto_subscribe-btn:hover {
            background-color: #ffca7d;
        }
        
        /* Footer Section */
        #ai_auto_footer {
            background-color: var(--dark-bg);
            color: var(--light-text);
            padding-top: 4rem;
        }
        
        .ai_auto_footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        .ai_auto_footer-columns {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 3rem;
        }
        
        .ai_auto_footer-col h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--accent-1);
        }
        
        #ai_auto_footer_desc p {
            opacity: 0.8;
            line-height: 1.8;
        }
        
        .ai_auto_footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
            display: block;
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-links li {
            margin-bottom: 12px;
        }
        
        .ai_auto_footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s;
            display: flex;
            align-items: center;
        }
        
        .ai_auto_footer-links a:hover {
            color: var(--accent-2);
        }
        
        .ai_auto_footer-links a i {
            margin-right: 10px;
            width: 20px;
            text-align: center;
        }
        
        .ai_auto_copyright {
            text-align: center;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.7;
        }
        
        /* Responsive */
        @media (max-width: 992px) {
            .ai_auto_navbar-container {
                flex-direction: column;
                gap: 15px;
            }
            
            .ai_auto_banner-title {
                font-size: 2.8rem;
            }
            
            .ai_auto_feature-main-img {
                height: 280px;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_nav-list {
                flex-wrap: wrap;
                justify-content: center;
                margin: 10px 0;
            }
            
            .ai_auto_nav-item {
                margin: 5px 10px;
            }
            
            .ai_auto_banner-title {
                font-size: 2.2rem;
            }
            
            .ai_auto_banner-desc {
                font-size: 1rem;
            }
            
            .ai_auto_feature-side-item {
                flex-direction: column;
            }
            
            .ai_auto_feature-side-img {
                width: 100%;
                height: 180px;
            }
            
            .ai_auto_feature-side-content {
                width: 100%;
            }
            
            .ai_auto_banner-search,
            .ai_auto_subscribe-form {
                flex-direction: column;
                gap: 10px;
            }
            
            .ai_auto_banner-search-input,
            .ai_auto_banner-search-btn,
            .ai_auto_subscribe-input,
            .ai_auto_subscribe-btn {
                width: 100%;
                border-radius: 4px;
            }
        }
        
        @media (max-width: 576px) {
            .ai_auto_banner {
                padding: 4rem 0;
            }
            
            .ai_auto_banner-title {
                font-size: 1.8rem;
            }
        }