* { 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: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: 'Georgia', serif; color: #2c3e50; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; border-bottom: 4px solid #3498db; padding-bottom: 0.5rem; }
        h2 { font-size: 2.2rem; color: #2980b9; margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #f1c40f; }
        h3 { font-size: 1.8rem; color: #16a085; margin-top: 2rem; }
        h4 { font-size: 1.4rem; color: #8e44ad; margin-top: 1.5rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        a { color: #3498db; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e74c3c; }
        strong { color: #c0392b; font-weight: 700; }
        em { font-style: italic; color: #7f8c8d; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.4rem; border-radius: 3px; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-content { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin: 30px 0; }
        @media (max-width: 992px) { .main-content { grid-template-columns: 1fr; } }
        .site-header {
            background: linear-gradient(135deg, #2c3e50 0%, #4a6491 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: #f1c40f;
            text-decoration: none;
            font-family: 'Courier New', monospace;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
        }
        .my-logo i { margin-right: 10px; color: #3498db; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
            display: block;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: #3498db;
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #2c3e50;
                padding: 20px;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.4s ease;
                box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li { width: 100%; }
            .main-nav a {
                padding: 15px;
                border-bottom: 1px solid #3a506b;
            }
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #ecf0f1;
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .breadcrumb a { color: #7f8c8d; }
        .breadcrumb a:hover { color: #3498db; }
        .breadcrumb span { color: #34495e; }
        .article-body {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .intro {
            font-size: 1.2rem;
            color: #2c3e50;
            background: #f8f9fa;
            padding: 20px;
            border-left: 5px solid #2ecc71;
            margin-bottom: 30px;
            border-radius: 0 8px 8px 0;
        }
        .featured-img {
            width: 100%;
            margin: 25px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 1px solid #ddd;
        }
        .featured-img img { width: 100%; transition: transform 0.5s; }
        .featured-img:hover img { transform: scale(1.03); }
        .sidebar {
            background-color: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        .widget { margin-bottom: 30px; }
        .widget-title {
            font-size: 1.3rem;
            color: #2c3e50;
            padding-bottom: 10px;
            margin-bottom: 15px;
            border-bottom: 2px solid #f1c40f;
        }
        .search-form { display: flex; }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #3498db;
            border-right: none;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: #3498db;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover { background-color: #2980b9; }
        .rating-widget .stars {
            display: flex;
            gap: 5px;
            margin-bottom: 15px;
        }
        .stars i {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .stars i:hover, .stars i.active { color: #f1c40f; }
        .rating-form textarea, .comment-form textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #bdc3c7;
            border-radius: 5px;
            margin-bottom: 10px;
            font-family: inherit;
            resize: vertical;
        }
        .rating-form input, .comment-form input {
            width: 100%;
            padding: 12px;
            border: 1px solid #bdc3c7;
            border-radius: 5px;
            margin-bottom: 10px;
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to right, #3498db, #2ecc71);
            color: white;
            padding: 12px 25px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s;
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 12px rgba(52, 152, 219, 0.3);
        }
        .btn-block { width: 100%; }
        .link-list {
            list-style: none;
            padding-left: 0;
        }
        .link-list li {
            padding: 12px 15px;
            margin-bottom: 8px;
            background-color: #f8f9fa;
            border-left: 4px solid #9b59b6;
            transition: all 0.3s;
        }
        .link-list li:hover {
            background-color: #e8f4fc;
            transform: translateX(5px);
        }
        .link-list a {
            color: #2c3e50;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .link-list a:hover { color: #3498db; }
        .link-list i { color: #7f8c8d; }
        .site-footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-widget h3 {
            color: #f1c40f;
            font-size: 1.5rem;
            margin-bottom: 20px;
            border-bottom: none;
            padding-left: 0;
        }
        friend-link {
            display: block;
            background-color: #34495e;
            padding: 15px;
            margin-bottom: 10px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link:hover { background-color: #3a506b; }
        friend-link a {
            color: #ecf0f1;
            font-weight: 600;
        }
        friend-link a:hover { color: #f1c40f; }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3a506b;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        .text-center { text-align: center; }
        .mt-4 { margin-top: 2rem; }
        .mb-4 { margin-bottom: 2rem; }
        .p-3 { padding: 1rem; }
        .last-updated {
            font-size: 0.9rem;
            color: #7f8c8d;
            text-align: right;
            margin-top: 30px;
            padding-top: 10px;
            border-top: 1px dashed #ddd;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }