* { 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: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #2c3e50; font-weight: 700; margin-bottom: 1rem; }
        h1 { font-size: 2.8rem; line-height: 1.2; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; border-bottom: 3px solid #3498db; padding-bottom: 0.5rem; margin-top: 2.5rem; }
        h3 { font-size: 1.8rem; color: #2980b9; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #555; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #1a5276; text-decoration: underline; }
        strong { color: #2c3e50; }
        em { font-style: italic; color: #7f8c8d; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-top: 30px;
        }
        @media (max-width: 992px) {
            .content-wrapper { grid-template-columns: 1fr; }
        }
        .site-header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            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: 900;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo:hover { text-decoration: none; color: #fff; }
        .my-logo i { font-size: 2.5rem; }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background: rgba(255,255,255,0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #2c3e50;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            color: white;
            padding: 12px 0;
            border-bottom: 1px solid #4a6572;
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
        }
        .breadcrumb {
            padding: 15px 0;
            background: #ecf0f1;
            font-size: 0.95rem;
        }
        .breadcrumb a { color: #7f8c8d; }
        .breadcrumb span { color: #3498db; }
        main { padding: 20px 0 40px; }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .intro {
            font-size: 1.3rem;
            color: #2c3e50;
            background: #e3f2fd;
            padding: 20px;
            border-left: 5px solid #3498db;
            margin-bottom: 2.5rem;
        }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .widget { margin-bottom: 30px; }
        .widget h3 { font-size: 1.5rem; border-bottom: 2px solid #eee; padding-bottom: 10px; }
        .search-box { display: flex; }
        .search-box input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #3498db;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-box button {
            background: #3498db;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover { background: #2980b9; }
        .rating-widget .stars {
            display: flex;
            gap: 5px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: #f1c40f;
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 20px;
        }
        .rating-form select, .comment-form input,
        .comment-form textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        .btn {
            background: linear-gradient(to right, #3498db, #2c3e50);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(52, 152, 219, 0.3);
            text-decoration: none;
        }
        .content-links {
            background: #f8f9fa;
            border-left: 4px solid #9b59b6;
            padding: 20px;
            margin: 2rem 0;
        }
        .content-links ul { list-style: none; padding-left: 20px; }
        .content-links li { margin-bottom: 10px; }
        .content-links a { font-weight: 600; }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-widget h4 {
            color: #fff;
            border-bottom: 2px solid #3498db;
            padding-bottom: 10px;
            margin-bottom: 20px;
        }
        friend-link {
            display: block;
            padding: 8px 0;
            color: #bdc3c7;
            border-bottom: 1px dotted #4a6572;
        }
        friend-link a { color: #bdc3c7; }
        friend-link a:hover { color: #3498db; }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #4a6572;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        .update-time {
            display: inline-block;
            background: #2ecc71;
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fff9c4, #ffecb3);
            border: 1px solid #ffd54f;
            padding: 25px;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: #555;
            border-left: 4px solid #9b59b6;
            padding-left: 20px;
            margin: 2rem 0;
        }
        .stat {
            font-size: 3rem;
            font-weight: 900;
            color: #e74c3c;
            text-align: center;
            margin: 1rem 0;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }