* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, #2a5298, #1e3c72);
            color: white;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(42, 82, 152, 0.25);
            background: linear-gradient(135deg, #1e3c72, #2a5298);
        }
        .site-header {
            background: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: #1e3c72;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
        }
        .logo-icon {
            color: #ff6b6b;
            margin-right: 10px;
            font-size: 2rem;
        }
        .main-nav {
            display: flex;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-list a {
            font-weight: 600;
            color: #444;
            padding: 5px 0;
            position: relative;
        }
        .nav-list a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: #2a5298;
            left: 0;
            bottom: -5px;
            transition: width 0.3s ease;
        }
        .nav-list a:hover {
            color: #1e3c72;
        }
        .nav-list a:hover:after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #1e3c72;
        }
        .breadcrumb {
            background: #f1f5fd;
            padding: 15px 20px;
            font-size: 0.9rem;
            color: #666;
            border-bottom: 1px solid #e1e8f7;
        }
        .breadcrumb a {
            color: #2a5298;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hero {
            background: linear-gradient(rgba(30, 60, 114, 0.85), rgba(42, 82, 152, 0.9)), url('https://images.unsplash.com/photo-1546480741-fad0d8d4092f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 80px 20px;
            text-align: center;
            margin-bottom: 40px;
            border-radius: 0 0 20px 20px;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.95;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 20px;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-article {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.05);
        }
        .main-article h2 {
            color: #1e3c72;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eef2fb;
            font-size: 2rem;
        }
        .main-article h3 {
            color: #2a5298;
            margin: 30px 0 15px;
            font-size: 1.6rem;
        }
        .main-article p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .main-article strong {
            color: #1a3a6d;
            font-weight: 700;
        }
        .main-article emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .article-image {
            margin: 30px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .article-image img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .article-image:hover img {
            transform: scale(1.03);
        }
        .figure-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 10px;
            background: #f9f9f9;
            border-radius: 0 0 10px 10px;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f5ff, #e6eeff);
            border-left: 5px solid #2a5298;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            text-align: center;
            border-top: 4px solid #2a5298;
            transition: transform 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #1e3c72;
            display: block;
        }
        .stat-label {
            color: #666;
            font-size: 0.95rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #1e3c72;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #e1e8f7;
            border-radius: 30px 0 0 30px;
            outline: none;
        }
        .search-btn {
            background: #2a5298;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-btn:hover {
            background: #1e3c72;
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 20px 0;
            font-size: 1.8rem;
            color: #ffc107;
        }
        .rating-widget .star {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .rating-widget .star:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #e1e8f7;
            border-radius: 10px;
            resize: vertical;
            margin-bottom: 15px;
            font-size: 1rem;
        }
        .sidebar-links {
            list-style: none;
            padding: 0;
        }
        .sidebar-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .sidebar-links a {
            color: #444;
            display: flex;
            align-items: center;
        }
        .sidebar-links a:hover {
            color: #2a5298;
        }
        .sidebar-links i {
            margin-right: 10px;
            color: #2a5298;
            width: 20px;
        }
        .longtail-links-section {
            background: #f1f5fd;
            padding: 40px 20px;
            margin-top: 60px;
            border-top: 1px solid #dce4f5;
        }
        .longtail-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        .web-link {
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.03);
            transition: all 0.3s ease;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(30, 60, 114, 0.1);
        }
        .web-link a {
            color: #2a5298;
            font-weight: 600;
            display: block;
            line-height: 1.5;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background: #1e3c72;
            color: #fff;
            padding: 40px 20px;
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 25px;
            margin-bottom: 30px;
        }
        .footer-links a {
            color: #c3d1f0;
        }
        .footer-links a:hover {
            color: white;
        }
        .copyright {
            font-size: 0.95rem;
            color: #a0b3e0;
            border-top: 1px solid #2a5298;
            padding-top: 20px;
            max-width: 800px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .mobile-toggle {
                display: block;
            }
            .main-nav {
                width: 100%;
                display: none;
                margin-top: 15px;
            }
            .main-nav.active {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                gap: 15px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .content-wrapper, .main-article {
                padding: 20px 15px;
            }
            .main-article h2 {
                font-size: 1.7rem;
            }
            .main-article h3 {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-links {
                flex-direction: column;
                gap: 15px;
            }
        }
        .text-center { text-align: center; }
        .mb-20 { margin-bottom: 20px; }
        .mt-40 { margin-top: 40px; }
        .p-20 { padding: 20px; }