* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight { background-color: #fff3cd; padding: 2px 5px; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .site-header {
            background: linear-gradient(135deg, #1e5799 0%, #207cca 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span:first-child { color: #FFD43B; }
        .my-logo span:last-child { color: #4dabf7; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: color 0.3s;
            padding: 5px 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #FFD43B;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #FFD43B;
            transition: width 0.3s;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 0;
            font-size: 0.95rem;
            margin-bottom: 30px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin: 0 10px;
            color: #6c757d;
        }
        .breadcrumb a {
            color: #1e5799;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-body {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        }
        .article-body h1 {
            font-size: 2.8rem;
            color: #1a1a1a;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #207cca;
            padding-bottom: 15px;
        }
        .article-body h2 {
            font-size: 2rem;
            color: #1e5799;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed #dee2e6;
        }
        .article-body h3 {
            font-size: 1.6rem;
            color: #495057;
            margin: 30px 0 15px;
        }
        .article-body h4 {
            font-size: 1.3rem;
            color: #6c757d;
            margin: 25px 0 10px;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-body .intro {
            font-size: 1.3rem;
            color: #555;
            background: #f8f9fa;
            padding: 20px;
            border-left: 5px solid #207cca;
            margin-bottom: 30px;
            border-radius: 0 10px 10px 0;
        }
        .article-body img.featured-img {
            width: 100%;
            border-radius: 10px;
            margin: 30px auto;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        }
        .internal-links {
            background: #e7f5ff;
            padding: 20px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .internal-links h3 { margin-top: 0; }
        .internal-links ul { list-style-position: inside; }
        .internal-links li { margin-bottom: 10px; }
        .internal-links a {
            color: #1c7ed6;
            text-decoration: none;
            font-weight: 600;
        }
        .internal-links a:hover {
            text-decoration: underline;
        }
        .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: #1e5799;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #dee2e6;
        }
        #searchForm {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        #searchForm input,
        #searchForm select,
        #commentForm input,
        #commentForm textarea,
        #ratingForm select {
            padding: 14px;
            border: 2px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        #searchForm input:focus,
        #commentForm input:focus,
        #commentForm textarea:focus,
        #ratingForm select:focus {
            border-color: #1e5799;
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 87, 153, 0.2);
        }
        .btn {
            background: linear-gradient(to right, #1e5799, #207cca);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .btn:hover {
            background: linear-gradient(to right, #18447c, #1a6ba5);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .comment, .rating-item {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 20px;
            border-left: 4px solid #207cca;
        }
        .comment-header, .rating-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
            font-size: 0.95rem;
            color: #6c757d;
        }
        .stars {
            color: #FFD43B;
            margin-bottom: 10px;
        }
        #commentsList, #ratingsList {
            max-height: 400px;
            overflow-y: auto;
            padding-right: 10px;
        }
        .site-footer {
            background: #1a1a1a;
            color: #ddd;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        .footer-links h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #4dabf7;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #2d3748;
            padding: 15px;
            border-radius: 8px;
            margin: 20px 0;
        }
        friend-link a {
            color: #63b3ed;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
            color: #adb5bd;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background: #1e5799;
                padding: 20px;
                transition: left 0.4s;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .article-body { padding: 25px; }
            .article-body h1 { font-size: 2.2rem; }
            .article-body h2 { font-size: 1.8rem; }
            .header-inner { flex-wrap: wrap; }
        }
        .last-updated {
            background: #d1ecf1;
            color: #0c5460;
            padding: 12px;
            border-radius: 8px;
            margin-top: 40px;
            display: flex;
            align-items: center;
            gap: 10px;
        }