:root {
            --primary: #1a3d7c;
            --accent1: #2a9d8f;
            --accent2: #e9c46a;
            --accent3: #e76f51;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
            --nature-green: #4a9d72;
            --nature-light: #e9f5eb;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--dark-text);
            background-color: #f5f7fa;
            background-image: linear-gradient(to bottom, #f5f7fa, #eef2f6);
        }
        
        /* Navbar Styles */
        #ai_auto_navbar {
            background: linear-gradient(135deg, var(--primary) 0%, #2a5699 100%);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            padding: 0.8rem 0;
        }
        
        .ai_auto_navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
            letter-spacing: 0.5px;
        }
        
        .ai_auto_navbar-brand:hover {
            color: var(--accent2) !important;
        }
        
        .ai_auto_nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 15px !important;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        
        .ai_auto_nav-link:hover {
            color: white !important;
            background-color: rgba(255, 255, 255, 0.15);
        }
        
        .ai_auto_search-form .form-control {
            border-radius: 30px 0 0 30px;
            border: none;
            padding: 10px 20px;
        }
        
        .ai_auto_search-form .btn {
            border-radius: 0 30px 30px 0;
            background-color: var(--accent1);
            color: white;
            border: none;
            padding: 10px 20px;
        }
        
        .ai_auto_search-form .btn:hover {
            background-color: #239185;
        }
        
        /* Banner Styles */
        #ai_auto_banner {
            background: linear-gradient(rgba(26, 61, 124, 0.85), rgba(42, 157, 143, 0.8)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%231a3d7c"/><path d="M0,50 Q25,30 50,50 T100,50 L100,100 L0,100 Z" fill="%232a9d8f"/></svg>');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .ai_auto_banner-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .ai_auto_banner-info {
            font-size: 1.4rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_banner-search {
            max-width: 650px;
            margin: 0 auto;
        }
        
        .ai_auto_banner-search .form-control {
            padding: 15px 25px;
            border-radius: 50px;
            border: none;
            font-size: 1.1rem;
        }
        
        .ai_auto_banner-search .btn {
            position: absolute;
            right: 5px;
            top: 5px;
            bottom: 5px;
            border-radius: 50px;
            padding: 0 30px;
            background: var(--accent2);
            color: var(--primary);
            font-weight: 600;
            border: none;
        }
        
        .ai_auto_banner-search .btn:hover {
            background: #dbb346;
        }
        
        /* Article Section Styles */
        #ai_auto_home-artice {
            padding: 80px 0;
            background-color: var(--light-bg);
        }
        
        .ai_auto_section-title {
            position: relative;
            margin-bottom: 40px;
            padding-bottom: 15px;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
        }
        
        .ai_auto_section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent1);
            border-radius: 2px;
        }
        
        /* Feature Article (Timeline Style) */
        #ai_auto_feature-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_timeline-card {
            position: relative;
            margin-bottom: 30px;
            border-left: 3px solid var(--accent1);
            padding-left: 30px;
            padding-top: 5px;
        }
        
        .ai_auto_timeline-card .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }
        
        .ai_auto_timeline-card .card:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_timeline-card .card-header {
            background: linear-gradient(to right, var(--primary), var(--accent1));
            color: white;
            font-weight: 600;
            border: none;
            padding: 12px 20px;
        }
        
        .ai_auto_timeline-card .card-body {
            padding: 25px;
        }
        
        .ai_auto_timeline-img {
            height: 180px;
            width: 100%;
            object-fit: cover;
            border-radius: 8px;
        }
        
        .ai_auto_timeline-title {
            font-weight: 700;
            color: var(--primary);
            margin-top: 15px;
            font-size: 1.4rem;
        }
        
        .ai_auto_timeline-title a {
            color: inherit;
            text-decoration: none;
        }
        
        .ai_auto_timeline-title a:hover {
            color: var(--accent1);
            text-decoration: underline;
        }
        
        .ai_auto_timeline-desc {
            margin: 15px 0;
            color: #555;
            line-height: 1.6;
        }
        
        .ai_auto_timeline-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            font-size: 0.9rem;
            color: #777;
        }
        
        .ai_auto_timeline-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        
        .ai_auto_timeline-tag {
            background-color: var(--nature-light);
            color: var(--nature-green);
            padding: 3px 12px;
            border-radius: 30px;
            font-size: 0.85rem;
            text-decoration: none;
        }
        
        .ai_auto_timeline-tag:hover {
            background-color: #d1e9d6;
        }
        
        /* Last Articles (Masonry Style) */
        #ai_auto_last-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_masonry-grid {
            column-count: 3;
            column-gap: 30px;
        }
        
        @media (max-width: 992px) {
            .ai_auto_masonry-grid {
                column-count: 2;
            }
        }
        
        @media (max-width: 576px) {
            .ai_auto_masonry-grid {
                column-count: 1;
            }
        }
        
        .ai_auto_masonry-item {
            break-inside: avoid;
            margin-bottom: 30px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            background: white;
            transition: transform 0.3s ease;
        }
        
        .ai_auto_masonry-item:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_masonry-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .ai_auto_masonry-body {
            padding: 20px;
        }
        
        .ai_auto_masonry-title {
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
        }
        
        .ai_auto_masonry-title a {
            color: var(--primary);
            text-decoration: none;
        }
        
        .ai_auto_masonry-title a:hover {
            color: var(--accent1);
            text-decoration: underline;
        }
        
        .ai_auto_masonry-desc {
            color: #555;
            font-size: 0.95rem;
            margin-bottom: 15px;
            line-height: 1.5;
        }
        
        .ai_auto_masonry-meta {
            display: flex;
            justify-content: space-between;
            color: #777;
            font-size: 0.85rem;
            border-top: 1px solid #eee;
            padding-top: 15px;
            margin-top: 15px;
        }
        
        /* Recommended Articles (Magazine Style) */
        #ai_auto_recommend-article {
            margin-bottom: 80px;
        }
        
        .ai_auto_magazine-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        
        @media (max-width: 768px) {
            .ai_auto_magazine-grid {
                grid-template-columns: 1fr;
            }
        }
        
        .ai_auto_magazine-main {
            grid-row: span 2;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            background: white;
            transition: transform 0.3s ease;
        }
        
        .ai_auto_magazine-main:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_magazine-main-img {
            height: 350px;
            width: 100%;
            object-fit: cover;
        }
        
        .ai_auto_magazine-main-body {
            padding: 25px;
        }
        
        .ai_auto_magazine-main-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
        }
        
        .ai_auto_magazine-main-title a {
            color: var(--primary);
            text-decoration: none;
        }
        
        .ai_auto_magazine-main-title a:hover {
            color: var(--accent1);
            text-decoration: underline;
        }
        
        .ai_auto_magazine-main-desc {
            font-size: 1.1rem;
            color: #555;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .ai_auto_magazine-main-meta {
            color: #777;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
        }
        
        .ai_auto_magazine-side {
            display: flex;
            gap: 20px;
            padding: 20px;
            border-radius: 12px;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }
        
        .ai_auto_magazine-side:hover {
            transform: translateY(-5px);
        }
        
        .ai_auto_magazine-side-img {
            width: 150px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
        }
        
        .ai_auto_magazine-side-content {
            flex: 1;
        }
        
        .ai_auto_magazine-side-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        
        .ai_auto_magazine-side-title a {
            color: var(--primary);
            text-decoration: none;
        }
        
        .ai_auto_magazine-side-title a:hover {
            color: var(--accent1);
            text-decoration: underline;
        }
        
        .ai_auto_magazine-side-meta {
            color: #777;
            font-size: 0.85rem;
            margin-top: 10px;
        }
        
        /* Subscribe Section */
        #ai_auto_subscribe {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent1) 100%);
            padding: 80px 0;
            color: white;
            text-align: center;
        }
        
        .ai_auto_subscribe-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .ai_auto_subscribe-info {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .ai_auto_subscribe-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .ai_auto_subscribe-form .form-control {
            padding: 15px 25px;
            border-radius: 50px;
            border: none;
            font-size: 1.1rem;
        }
        
        .ai_auto_subscribe-form .btn {
            border-radius: 50px;
            background: var(--accent2);
            color: var(--primary);
            font-weight: 600;
            padding: 15px 40px;
            margin-top: 20px;
            border: none;
            font-size: 1.1rem;
            transition: all 0.3s ease;
        }
        
        .ai_auto_subscribe-form .btn:hover {
            background: #dbb346;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        /* Footer Styles */
        #ai_auto_footer {
            background-color: #1c2b40;
            color: #d1d9e6;
            padding-top: 70px;
        }
        
        .ai_auto_footer-title {
            color: white;
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .ai_auto_footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent1);
            border-radius: 2px;
        }
        
        .ai_auto_footer-links {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-links li {
            margin-bottom: 12px;
        }
        
        .ai_auto_footer-links a {
            color: #d1d9e6;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .ai_auto_footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .ai_auto_footer-contact {
            list-style: none;
            padding: 0;
        }
        
        .ai_auto_footer-contact li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        
        .ai_auto_footer-contact i {
            color: var(--accent1);
            margin-right: 12px;
            margin-top: 5px;
            font-size: 1.1rem;
        }
        
        .ai_auto_footer-desc {
            margin-top: 15px;
            line-height: 1.7;
        }
        
        .ai_auto_footer-bottom {
            background-color: #0f1721;
            padding: 25px 0;
            margin-top: 70px;
            text-align: center;
        }
        
        .ai_auto_footer-bottom p {
            margin: 0;
            color: #a0aec0;
        }
        
        /* Polymer Theme Elements */
        .ai_auto_polymer-shape {
            position: absolute;
            width: 150px;
            height: 150px;
            opacity: 0.1;
            background-color: var(--accent1);
            border-radius: 50%;
            z-index: 0;
        }
        
        .ai_auto_polymer-shape-1 {
            top: 20%;
            left: 10%;
        }
        
        .ai_auto_polymer-shape-2 {
            bottom: 10%;
            right: 15%;
        }
        
        .ai_auto_molecule-icon {
            display: inline-block;
            position: relative;
            width: 24px;
            height: 24px;
            margin-right: 8px;
        }
        
        .ai_auto_molecule-icon:before,
        .ai_auto_molecule-icon:after {
            content: '';
            position: absolute;
            background: currentColor;
        }
        
        .ai_auto_molecule-icon:before {
            width: 100%;
            height: 2px;
            top: 50%;
            transform: translateY(-50%);
        }
        
        .ai_auto_molecule-icon:after {
            width: 2px;
            height: 100%;
            left: 50%;
            transform: translateX(-50%);
        }
        
        .ai_auto_bg-pattern {
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h50v50H0z' fill='%231a3d7c' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
        }