* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #fefefe;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-weight: 800; line-height: 1.2; margin-bottom: 1rem; color: #2c3e50; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 3rem; padding-bottom: 0.5rem; border-bottom: 3px solid #e67e22; }
        h3 { font-size: 1.8rem; margin-top: 2.5rem; color: #3498db; }
        h4 { font-size: 1.4rem; margin-top: 2rem; color: #8e44ad; }
        p { margin-bottom: 1.5rem; font-size: 1.125rem; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #e67e22; text-decoration: underline; }
        strong { font-weight: 700; color: #c0392b; }
        em { font-style: italic; }
        blockquote {
            border-left: 5px solid #3498db;
            padding-left: 1.5rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #1a237e 0%, #311b92 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2rem;
            font-weight: 900;
            color: #ffcc00;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo a:hover { color: #fff; }
        .my-logo i { font-size: 2.2rem; }
        .nav-desktop { display: flex; gap: 2rem; }
        .nav-desktop a {
            color: #fff;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: #ffcc00;
            left: 0;
            bottom: 0;
            transition: width 0.3s;
        }
        .nav-desktop a:hover:after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #1a237e;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: white;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #3949ab;
        }
        .breadcrumb {
            background: #f5f5f5;
            padding: 0.8rem 1.5rem;
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #666; }
        .breadcrumb span { color: #999; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        .article-content {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #eee;
            font-size: 0.9rem;
            color: #777;
        }
        .update-time { color: #27ae60; font-weight: 600; }
        .featured-img {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .featured-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 0.5rem;
            color: #666;
            background: #f9f9f9;
        }
        .sidebar {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 12px;
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .widget { margin-bottom: 2rem; }
        .widget h3 {
            font-size: 1.3rem;
            margin-top: 0;
            color: #2c3e50;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e67e22;
        }
        .search-box, .comment-form, .rating-form {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .form-group { margin-bottom: 1rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        input[type="text"],
        input[type="email"],
        textarea,
        select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 6px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        button, .btn {
            background: #e67e22;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: #d35400;
            transform: translateY(-2px);
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            font-size: 1.5rem;
            color: #f1c40f;
        }
        .stars i { cursor: pointer; }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 {
            color: #ffcc00;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
            border-bottom: 2px solid #34495e;
            padding-bottom: 0.5rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .friend-links a {
            color: #bdc3c7;
            padding: 0.3rem 0;
            border-bottom: 1px dotted #4a6278;
        }
        .friend-links a:hover { color: #ffcc00; }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
            grid-column: 1 / -1;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-container { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .article-content { padding: 1.5rem; }
            .main-content { padding: 1rem 0; }
        }
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }
        .highlight { background: #fffacd; padding: 0.2rem 0.5rem; border-radius: 3px; }