* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: #4a6fa5; transition: color 0.3s ease; }
        a:hover { color: #ff6b6b; }
        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: 800; }
        .highlight { background-color: #fffacd; padding: 0 5px; border-radius: 3px; }
        .site-header {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            padding: 1.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            color: white;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            font-family: 'Comic Sans MS', cursive, sans-serif;
            letter-spacing: -1px;
        }
        .my-logo span:nth-child(odd) { color: #ffeb3b; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: rgba(255, 255, 255, 0.2);
            color: #ffeb3b;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #f8f9fa;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a { color: #6c757d; }
        .breadcrumb a:hover { color: #1a2980; }
        .breadcrumb span { color: #495057; }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2.5rem 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        article {
            background-color: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a2980;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 4px solid #26d0ce;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: #2d4059;
            margin: 2.5rem 0 1.2rem;
            padding-left: 10px;
            border-left: 5px solid #ff6b6b;
        }
        h3 {
            font-size: 1.6rem;
            color: #4a6fa5;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #6a9eda;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            color: #555;
            background-color: #f0f8ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 2.5rem;
            border-left: 5px solid #4a6fa5;
        }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .key-point {
            background: linear-gradient(to right, #e3f2fd, #fce4ec);
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #ff6b6b;
            margin: 1.5rem 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .widget h3 {
            font-size: 1.4rem;
            margin-top: 0;
            color: #1a2980;
            border-bottom: 2px solid #eee;
            padding-bottom: 0.5rem;
        }
        .search-box, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
        }
        button, .btn {
            background: linear-gradient(90deg, #1a2980, #26d0ce);
            color: white;
            border: none;
            padding: 0.9rem 1.5rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(90deg, #26d0ce, #1a2980);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0, 0, 0, 0.1);
        }
        .stars {
            display: flex;
            gap: 5px;
            justify-content: center;
            font-size: 1.8rem;
            color: #ffd700;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .internal-link {
            color: #1a2980;
            border-bottom: 1px dashed #4a6fa5;
        }
        .internal-link:hover {
            color: #ff6b6b;
            border-bottom-style: solid;
        }
        .site-footer {
            background: #2d4059;
            color: #e6e6e6;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 {
            color: #ffeb3b;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a { color: #b0bec5; }
        .footer-links a:hover { color: #26d0ce; }
        friend-link {
            display: block;
            background-color: #3a506b;
            padding: 1rem;
            border-radius: 8px;
            margin: 0.5rem 0;
            border-left: 4px solid #26d0ce;
        }
        friend-link a { color: white; font-weight: bold; }
        friend-link a:hover { color: #ffeb3b; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6fa5;
            font-size: 0.9rem;
            color: #b0bec5;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .main-nav {
                width: 100%;
                display: none;
                order: 3;
                margin-top: 1rem;
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            article { padding: 1.5rem; }
            .main-content { gap: 1.5rem; }
        }