* { 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;
        }
        a { text-decoration: none; color: #2c3e50; transition: color 0.3s; }
        a:hover { color: #e74c3c; }
        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: #fffacd; padding: 2px 5px; border-radius: 3px; }
        .emoji { font-size: 1.2em; }
        .site-header {
            background: linear-gradient(135deg, #1a237e, #283593);
            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;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            font-family: 'Georgia', serif;
            letter-spacing: 1px;
        }
        .logo a span {
            color: #ffcc00;
        }
        .logo a:hover { color: #ffcc00; }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            border-bottom-color: #ffcc00;
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            background: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: block; }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .nav-mobile a {
            color: white;
            font-weight: 600;
            display: block;
            padding: 0.8rem;
            border-radius: 5px;
        }
        .nav-mobile a:hover { background: #283593; }
        .breadcrumb {
            background: #e8eaf6;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb .container {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: #283593; }
        .breadcrumb span { color: #666; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-content h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 0.5rem; }
        .article-img {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 0.5rem;
            background: #f9f9f9;
        }
        .article-content h2 {
            font-size: 2rem;
            color: #283593;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .article-content h3 {
            font-size: 1.5rem;
            color: #3949ab;
            margin: 1.8rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        .article-content li { margin-bottom: 0.5rem; }
        .pro-tip {
            background: #e8f4fd;
            border-left: 4px solid #2196f3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .pro-tip h4 { color: #0d47a1; margin-bottom: 0.5rem; }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: #1a237e;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #ffcc00;
        }
        .search-form { display: flex; }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-right: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-form button {
            background: #283593;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-form button:hover { background: #1a237e; }
        .rating-stars { font-size: 1.8rem; color: #ffcc00; margin-bottom: 1rem; }
        .rating-stars a { color: #ddd; margin-right: 0.2rem; }
        .rating-stars a:hover { color: #ffcc00; }
        .rating-form label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        .rating-form select, .rating-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
        }
        .rating-form button {
            background: #2ecc71;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .rating-form button:hover { background: #27ae60; }
        .comment-list { margin-bottom: 2rem; }
        .comment {
            border-bottom: 1px solid #eee;
            padding: 1.2rem 0;
        }
        .comment:last-child { border-bottom: none; }
        .comment-author {
            font-weight: 700;
            color: #1a237e;
            margin-bottom: 0.3rem;
        }
        .comment-date { color: #888; font-size: 0.9rem; margin-bottom: 0.5rem; }
        .comment-form input, .comment-form textarea {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
        }
        .comment-form button {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s;
        }
        .comment-form button:hover { background: #c0392b; }
        .footer-links {
            background: #2c3e50;
            color: white;
            padding: 3rem 0 2rem;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background: rgba(255,255,255,0.05);
            padding: 1.2rem;
            border-radius: 8px;
            transition: transform 0.3s, background 0.3s;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-5px);
        }
        .web-link a {
            color: #ffcc00;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover { color: white; text-decoration: underline; }
        .site-footer {
            background: #1a252f;
            color: #bdc3c7;
            padding: 2rem 0;
            text-align: center;
        }
        .copyright {
            font-size: 0.95rem;
            margin-top: 1rem;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .article-content h1 { font-size: 2.2rem; }
            .article-content { padding: 1.8rem; }
            .sidebar-widget { padding: 1.5rem; }
        }