:root {
            --primary-color: #2C5F9E;
            --secondary-color: #6FA0D7;
            --accent-color: #FF7F41;
            --dark-color: #4A4A4A;
            --light-color: #F8F9FA;
            --nature-green: #3A8C6E;
            --nature-light-green: #E9F5F0;
            --nature-blue: #2C5F9E;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--light-color);
            color: var(--dark-color);
            overflow-x: hidden;
        }
        
        /* 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-brand {
            color: var(--primary-color);
            font-weight: 700;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
        }
        
        .ai_auto_navbar-brand i {
            margin-right: 10px;
            color: var(--nature-green);
        }
        
        .ai_auto_nav-link {
            color: var(--dark-color);
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            transition: all 0.3s ease;
            border-radius: 4px;
        }
        
        .ai_auto_nav-link:hover {
            color: var(--primary-color);
            background-color: var(--nature-light-green);
        }
        
        .ai_auto_search-form {
            position: relative;
            max-width: 300px;
        }
        
        .ai_auto_search-input {
            border-radius: 30px;
            padding: 0.6rem 1.5rem;
            border: 2px solid var(--secondary-color);
            background-color: var(--light-color);
        }
        
        .ai_auto_search-btn {
            position: absolute !important;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--primary-color);
        }
        
        /* Banner Section */
        #ai_auto_banner {
            background: linear-gradient(rgba(42, 95, 158, 0.85), rgba(42, 95, 158, 0.85)), 
                         url('https://images.unsplash.com/photo-1518770660439-4636190af475?ixlib=rb-4.0.3') center/cover no-repeat;
            padding: 120px 0 80px;
            color: white;
            text-align: center;
        }
        
        .ai_auto_banner-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        
        .ai_auto_banner-desc {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        
        .ai_auto_banner-search {
            max-width: 700px;
            margin: 0 auto;
        }
        
        .ai_auto_banner-search .ai_auto_search-input {
            height: 55px;
            font-size: 1.1rem;
            border: none;
        }
        
        /* Articles Section */
        #ai_auto_home-artice {
            padding: 80px 0;
        }
        
        .ai_auto_section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 30px;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .ai_auto_section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 70px;
            height: 4px;
            background: var(--accent-color);
            border-radius: 2px;
        }
        
        /* Featured Articles - Magazine Layout */
        #ai_auto_feature-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_featured-main {
            height: 100%;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            background-color: white;
        }
        
        .ai_auto_featured-main:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_featured-main-img {
            height: 300px;
            width: 100%;
            object-fit: cover;
        }
        
        .ai_auto_featured-main-content {
            padding: 25px;
        }
        
        .ai_auto_featured-main-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .ai_auto_featured-main-desc {
            color: var(--dark-color);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .ai_auto_featured-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .ai_auto_featured-item {
            display: flex;
            gap: 20px;
            padding: 15px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }
        
        .ai_auto_featured-item:hover {
            transform: translateX(5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        
        .ai_auto_featured-img {
            width: 120px;
            height: 100px;
            object-fit: cover;
            border-radius: 6px;
        }
        
        .ai_auto_featured-content {
            flex: 1;
        }
        
        .ai_auto_featured-title {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--primary-color);
        }
        
        /* Recent Articles - Timeline Layout */
        #ai_auto_last-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_timeline {
            position: relative;
            padding: 40px 0;
        }
        
        .ai_auto_timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50px;
            height: 100%;
            width: 3px;
            background: var(--secondary-color);
        }
        
        .ai_auto_timeline-item {
            position: relative;
            margin-bottom: 40px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            overflow: hidden;
            border-left: 4px solid var(--accent-color);
        }
        
        .ai_auto_timeline-date {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--primary-color);
            color: white;
            padding: 8px 15px;
            border-radius: 5px;
            font-weight: 600;
            z-index: 2;
        }
        
        .ai_auto_timeline-content {
            display: flex;
            padding: 25px 25px 25px 35px;
            gap: 25px;
        }
        
        .ai_auto_timeline-img {
            width: 250px;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
        }
        
        .ai_auto_timeline-text {
            flex: 1;
        }
        
        .ai_auto_timeline-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary-color);
        }
        
        .ai_auto_timeline-desc {
            color: var(--dark-color);
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .ai_auto_author {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark-color);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        
        .ai_auto_labels {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        
        .ai_auto_label {
            background: var(--nature-light-green);
            color: var(--nature-green);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_label:hover {
            background: var(--nature-green);
            color: white;
        }
        
        /* Recommended Articles - Masonry Grid */
        #ai_auto_recommend-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_masonry-grid {
            column-count: 3;
            column-gap: 30px;
        }
        
        .ai_auto_masonry-item {
            break-inside: avoid;
            margin-bottom: 30px;
            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_masonry-item:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.1);
        }
        
        .ai_auto_masonry-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .ai_auto_masonry-content {
            padding: 20px;
        }
        
        .ai_auto_masonry-title {
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary-color);
            font-size: 1.2rem;
        }
        
        .ai_auto_masonry-desc {
            color: var(--dark-color);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 15px;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            background: linear-gradient(to right, var(--primary-color), var(--nature-green));
            padding: 80px 0;
            color: white;
        }
        
        .ai_auto_subscribe-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .ai_auto_subscribe-desc {
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            height: 60px;
        }
        
        .ai_auto_subscribe-input {
            flex: 1;
            border: none;
            padding: 0 20px;
            font-size: 1.1rem;
            border-radius: 5px 0 0 5px;
        }
        
        .ai_auto_subscribe-btn {
            background: var(--accent-color);
            color: white;
            border: none;
            padding: 0 35px;
            font-weight: 600;
            font-size: 1.1rem;
            border-radius: 0 5px 5px 0;
            transition: all 0.3s ease;
        }
        
        .ai_auto_subscribe-btn:hover {
            background: #e06a30;
        }
        
        /* Footer */
        #ai_auto_footer {
            background: var(--dark-color);
            color: white;
            padding-top: 70px;
        }
        
        .ai_auto_footer-col {
            margin-bottom: 40px;
        }
        
        .ai_auto_footer-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .ai_auto_footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent-color);
        }
        
        .ai_auto_footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        
        .ai_auto_footer-desc {
            opacity: 0.8;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        
        .ai_auto_footer-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .ai_auto_footer-list li {
            margin-bottom: 12px;
        }
        
        .ai_auto_footer-list a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .ai_auto_footer-list a:hover {
            color: white;
            padding-left: 5px;
        }
        
        .ai_auto_footer-contact {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
            opacity: 0.9;
        }
        
        .ai_auto_copyright {
            background: rgba(0,0,0,0.2);
            padding: 25px 0;
            text-align: center;
            font-size: 0.95rem;
            opacity: 0.8;
        }
        
        /* Responsive Adjustments */
        @media (max-width: 992px) {
            .ai_auto_masonry-grid {
                column-count: 2;
            }
            
            .ai_auto_timeline-content {
                flex-direction: column;
            }
            
            .ai_auto_timeline-img {
                width: 100%;
                height: 250px;
            }
        }
        
        @media (max-width: 768px) {
            .ai_auto_masonry-grid {
                column-count: 1;
            }
            
            .ai_auto_featured-main-img {
                height: 250px;
            }
            
            .ai_auto_banner-title {
                font-size: 2.2rem;
            }
            
            .ai_auto_subscribe-form {
                flex-direction: column;
                height: auto;
                gap: 15px;
            }
            
            .ai_auto_subscribe-input,
            .ai_auto_subscribe-btn {
                width: 100%;
                border-radius: 5px;
                height: 50px;
            }
        }