* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { color: #0056b3; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #003d82; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: linear-gradient(135deg, #0a2e5c 0%, #1a5fb4 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-content { display: flex; justify-content: space-between; align-items: center; }
        .my-logo { font-family: 'Impact', 'Arial Black', sans-serif; font-size: 2.2rem; font-weight: bold; letter-spacing: 1px; color: #ffd700; text-shadow: 2px 2px 0 #0a2e5c; }
        .my-logo:hover { color: #ffed4e; }
        nav.desktop-nav ul { display: flex; list-style: none; gap: 2rem; }
        nav.desktop-nav a { color: white; font-weight: 600; padding: 0.5rem 0.8rem; border-radius: 4px; }
        nav.desktop-nav a:hover { background-color: rgba(255, 255, 255, 0.15); }
        .mobile-nav-toggle { display: none; background: none; border: none; color: white; font-size: 1.8rem; cursor: pointer; }
        .mobile-nav { display: none; background-color: #1a5fb4; position: absolute; top: 100%; left: 0; width: 100%; padding: 1rem; box-shadow: 0 5px 10px rgba(0,0,0,0.2); }
        .mobile-nav.active { display: block; }
        .mobile-nav ul { list-style: none; }
        .mobile-nav li { margin-bottom: 1rem; }
        .mobile-nav a { color: white; font-weight: 600; display: block; padding: 0.8rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
        .breadcrumb { padding: 1rem 0; background-color: #e9ecef; font-size: 0.9rem; }
        .breadcrumb ul { display: flex; list-style: none; flex-wrap: wrap; gap: 0.5rem; }
        .breadcrumb li:not(:last-child)::after { content: '›'; margin-left: 0.5rem; color: #6c757d; }
        .breadcrumb a { color: #495057; }
        .breadcrumb a:hover { color: #0056b3; }
        .search-container { background: #e3f2fd; padding: 2rem 0; text-align: center; margin: 1rem 0; border-radius: 8px; }
        .search-form { max-width: 600px; margin: 0 auto; display: flex; }
        .search-form input { flex-grow: 1; padding: 0.8rem 1rem; border: 2px solid #1a5fb4; border-radius: 50px 0 0 50px; font-size: 1rem; outline: none; }
        .search-form button { background: #1a5fb4; color: white; border: none; padding: 0 1.5rem; border-radius: 0 50px 50px 0; cursor: pointer; font-size: 1rem; transition: background 0.3s; }
        .search-form button:hover { background: #0a2e5c; }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; padding: 2rem 0; }
        @media (max-width: 992px) { main { grid-template-columns: 1fr; } }
        .article-content { background: white; padding: 2.5rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        h1 { color: #0a2e5c; font-size: 2.8rem; margin-bottom: 1.5rem; border-bottom: 3px solid #ffd700; padding-bottom: 0.5rem; }
        h2 { color: #1a5fb4; font-size: 2rem; margin: 2rem 0 1rem; padding-top: 0.5rem; }
        h3 { color: #333; font-size: 1.6rem; margin: 1.5rem 0 0.8rem; }
        h4 { color: #555; font-size: 1.3rem; margin: 1.2rem 0 0.6rem; }
        p { margin-bottom: 1.2rem; font-size: 1.1rem; line-height: 1.7; }
        .intro { font-size: 1.2rem; color: #444; font-weight: 500; background: #f0f8ff; padding: 1.5rem; border-left: 5px solid #1a5fb4; margin-bottom: 2rem; border-radius: 0 8px 8px 0; }
        .highlight { background-color: #fff3cd; padding: 1rem; border-left: 4px solid #ffc107; margin: 1.5rem 0; border-radius: 0 5px 5px 0; }
        .key-point { font-weight: bold; color: #0a2e5c; }
        emoji { font-size: 1.2em; margin-right: 0.3rem; }
        figure { margin: 2rem 0; text-align: center; }
        figcaption { font-style: italic; color: #666; margin-top: 0.5rem; font-size: 0.95rem; }
        .internal-link { color: #d35400; font-weight: 600; }
        .internal-link:hover { text-decoration: underline; }
        aside.sidebar { background: white; padding: 1.5rem; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); align-self: start; position: sticky; top: 110px; }
        .widget { margin-bottom: 2rem; }
        .widget-title { color: #0a2e5c; font-size: 1.3rem; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #ffd700; }
        .rating-widget form, .comment-widget form { display: flex; flex-direction: column; gap: 0.8rem; }
        .rating-widget input, .comment-widget input, .comment-widget textarea { padding: 0.8rem; border: 1px solid #ccc; border-radius: 5px; font-family: inherit; }
        .comment-widget textarea { min-height: 120px; resize: vertical; }
        .rating-widget button, .comment-widget button { background: #28a745; color: white; border: none; padding: 0.8rem; border-radius: 5px; cursor: pointer; font-weight: bold; transition: background 0.3s; }
        .rating-widget button:hover, .comment-widget button:hover { background: #218838; }
        .star-rating { display: flex; gap: 0.3rem; font-size: 1.5rem; color: #ccc; cursor: pointer; }
        .star-rating .star:hover, .star-rating .star.active { color: #ffc107; }
        .update-time { font-size: 0.9rem; color: #6c757d; background: #f8f9fa; padding: 0.5rem; border-radius: 5px; text-align: center; }
        footer { background: #0a2e5c; color: #ddd; padding: 3rem 0 1.5rem; margin-top: 3rem; }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
        .footer-section h3 { color: #ffd700; font-size: 1.4rem; margin-bottom: 1rem; }
        friend-link { display: block; margin-bottom: 0.5rem; }
        friend-link a { color: #a3d5ff; }
        friend-link a:hover { color: white; }
        .copyright { text-align: center; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #1a5fb4; color: #aaa; font-size: 0.9rem; }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .mobile-nav-toggle { display: block; }
            nav.desktop-nav { display: none; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-form input, .search-form button { border-radius: 50px; margin-bottom: 0.5rem; }
        }