* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #1a365d; margin-bottom: 1rem; font-weight: 700; line-height: 1.3; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); margin-top: 1.5rem; }
        h2 { font-size: clamp(2rem, 4vw, 2.8rem); border-bottom: 3px solid #e53e3e; padding-bottom: 0.5rem; margin-top: 3rem; }
        h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); color: #2d3748; margin-top: 2.5rem; }
        h4 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); color: #4a5568; margin-top: 2rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        a { color: #3182ce; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e53e3e; text-decoration: underline; }
        .lead { font-size: 1.3rem; color: #4a5568; font-weight: 500; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.5rem; border-radius: 4px; }
        .bold { font-weight: 700; color: #1a365d; }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1a365d 0%, #2d3748 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-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .my-logo i { color: #e53e3e; }
        .my-logo:hover { color: #e53e3e; text-decoration: none; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #cbd5e0;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active { color: white; }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #e53e3e;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: #2d3748;
            padding: 1rem;
            border-top: 1px solid #4a5568;
        }
        .mobile-nav.active { display: block; }
        .mobile-nav ul { list-style: none; }
        .mobile-nav li { margin-bottom: 1rem; }
        .mobile-nav a { color: #cbd5e0; font-size: 1.1rem; display: block; padding: 0.5rem; }
        .mobile-nav a:hover { color: white; background: #4a5568; border-radius: 5px; }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 0.8rem 1.5rem;
            border-radius: 0 0 8px 8px;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: #a0aec0;
        }
        .breadcrumb a { color: #4a5568; }
        .breadcrumb a:hover { color: #3182ce; }
        .hero {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
            color: white;
            padding: 4rem 2rem;
            text-align: center;
            border-radius: 12px;
            margin: 2rem auto;
        }
        .hero h1 { color: white; margin-top: 0; }
        .hero p { font-size: 1.3rem; max-width: 800px; margin: 0 auto 2rem; }
        .search-box {
            max-width: 700px;
            margin: 3rem auto;
            padding: 2rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .search-box h2 { text-align: center; border: none; }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid #cbd5e0;
            border-radius: 50px;
            font-size: 1.1rem;
            transition: border 0.3s;
        }
        .search-input:focus {
            outline: none;
            border-color: #3182ce;
        }
        .search-btn {
            background: #e53e3e;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover { background: #c53030; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin: 3rem auto;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-img {
            margin: 2.5rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.1);
        }
        .article-img img { width: 100%; transition: transform 0.5s ease; }
        .article-img:hover img { transform: scale(1.02); }
        .caption { text-align: center; font-style: italic; color: #718096; margin-top: 0.5rem; font-size: 0.95rem; }
        .content-list {
            background: #edf2f7;
            padding: 1.5rem;
            border-left: 5px solid #3182ce;
            margin: 2.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .content-list ul { padding-left: 1.5rem; }
        .content-list li { margin-bottom: 0.75rem; }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .widget h3 { border-bottom: 2px solid #e53e3e; padding-bottom: 0.5rem; font-size: 1.5rem; }
        .widget ul { list-style: none; margin-top: 1rem; }
        .widget li { margin-bottom: 0.9rem; padding-bottom: 0.9rem; border-bottom: 1px dashed #e2e8f0; }
        .widget li:last-child { border: none; }
        .rating-widget .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #f6ad55;
        }
        .rating-form, .comment-form {
            margin-top: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        .form-input, .form-textarea {
            width: 100%;
            padding: 0.9rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: #3182ce;
            box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
        }
        .form-textarea { min-height: 150px; resize: vertical; }
        .submit-btn {
            background: #3182ce;
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover { background: #2b6cb0; }
        .update-info {
            background: #c6f6d5;
            color: #22543d;
            padding: 1rem;
            border-radius: 8px;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .update-info i { font-size: 1.5rem; }
        .site-footer {
            background: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-widget h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid #e53e3e;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #a0aec0; }
        .footer-links a:hover { color: white; }
        friend-link {
            display: block;
            background: #2d3748;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
        }
        friend-link h4 { color: #f6e05e; }
        friend-link a {
            color: #90cdf4;
            display: inline-block;
            margin-right: 1rem;
            margin-bottom: 0.5rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #4a5568;
            font-size: 0.95rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav { display: none; }
            .header-container { flex-wrap: wrap; }
            .search-form { flex-direction: column; }
            .search-btn { width: 100%; }
            .hero { padding: 2.5rem 1.5rem; }
            .article-content { padding: 1.5rem; }
            .main-content { gap: 2rem; }
        }