* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
            padding: 0;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: #3498db;
        }
        a:hover {
            color: #2980b9;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        .site-header {
            background: linear-gradient(135deg, #2c3e50, #1a1a2e);
            color: #fff;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 700;
            color: #00ff88;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
        }
        .main-nav li {
            margin-left: 25px;
        }
        .main-nav a {
            color: #ecf0f1;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: background-color 0.3s, color 0.3s;
        }
        .main-nav a:hover {
            background-color: #3498db;
            color: #fff;
        }
        .breadcrumb {
            margin-top: 10px;
            font-size: 0.9rem;
            color: #bdc3c7;
        }
        .breadcrumb a {
            color: #bdc3c7;
        }
        .breadcrumb a:hover {
            color: #3498db;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #fff;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #2c3e50;
                display: none;
                padding: 15px;
                box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            }
            .main-nav.active ul {
                display: flex;
            }
            .main-nav li {
                margin: 10px 0;
            }
            .hamburger {
                display: block;
            }
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-section {
            background: #fff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .sidebar {
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        h1 {
            font-size: 2.8rem;
            color: #2c3e50;
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 5px solid #00ff88;
            padding-left: 15px;
        }
        h2 {
            font-size: 2rem;
            color: #34495e;
            margin-top: 30px;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.6rem;
            color: #16a085;
            margin-top: 25px;
            margin-bottom: 10px;
        }
        h4 {
            font-size: 1.3rem;
            color: #8e44ad;
            margin-top: 20px;
            margin-bottom: 10px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .emphasis {
            font-weight: 700;
            color: #e74c3c;
        }
        .highlight {
            background-color: #fffacd;
            padding: 5px;
            border-radius: 3px;
        }
        .last-updated {
            font-style: italic;
            color: #7f8c8d;
            margin-bottom: 25px;
            padding: 10px;
            background-color: #f9f9f9;
            border-left: 4px solid #3498db;
        }
        .search-box, .comment-form, .rating-form {
            margin-bottom: 30px;
            padding: 20px;
            background-color: #f1f8ff;
            border-radius: 8px;
            border: 1px solid #d1e7ff;
        }
        .search-box h3, .comment-form h3, .rating-form h3 {
            margin-top: 0;
            color: #2c3e50;
        }
        .form-group {
            margin-bottom: 15px;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: #3498db;
            outline: none;
        }
        button {
            background: linear-gradient(to right, #3498db, #2ecc71);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .stars {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s;
        }
        .star:hover,
        .star.active {
            color: #f39c12;
        }
        .site-footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #00ff88;
            margin-bottom: 15px;
        }
        friend-link {
            display: block;
            margin-bottom: 8px;
            color: #bdc3c7;
            transition: color 0.3s;
        }
        friend-link:hover {
            color: #3498db;
        }
        .copyright {
            text-align: center;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #4a6278;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .article-section, .sidebar { padding: 20px; }
        }