:root {
            --primary: #6a5acd; 
            --secondary: #ffb347; 
            --accent: #77dd77; 
            --dark: #2c2c54;
            --light: #f8f9fa;
            --gray: #6c757d;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul { list-style: none; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn:hover {
            background: var(--dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .section-padding { padding: 60px 0; }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 992px) {
            .nav-desktop { display: none; }
        }
        .nav-desktop a {
            font-weight: 600;
            color: var(--dark);
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:hover {
            color: var(--primary);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--light);
            border-radius: 50px;
            padding: 8px 20px;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px;
            width: 200px;
            outline: none;
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--gray);
            cursor: pointer;
        }
        .menu-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark);
        }
        @media (max-width: 992px) {
            .menu-toggle { display: block; }
        }
        .nav-mobile {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: var(--shadow);
            padding: 20px;
            transform: translateY(-100%);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .nav-mobile.active {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .nav-mobile a {
            display: block;
            padding: 15px;
            border-bottom: 1px solid #eee;
            font-weight: 600;
            color: var(--dark);
        }
        .nav-mobile a:hover {
            color: var(--primary);
            background: #f9f9f9;
        }
        .breadcrumb {
            background: var(--light);
            padding: 15px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 10px;
            color: #aaa;
        }
        main {
            min-height: 80vh;
        }
        .article-header {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 40px 20px;
            border-radius: 0 0 20px 20px;
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 3rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            .article-header h1 { font-size: 2.2rem; }
        }
        .article-meta {
            display: flex;
            gap: 20px;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-area { grid-template-columns: 1fr; }
        }
        .article-body {
            font-size: 1.1rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .article-body h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent);
        }
        .article-body h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.4rem;
            color: var(--dark);
            margin: 1.5rem 0 1rem;
        }
        .highlight-box {
            background: #eef7ff;
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .related-links {
            background: var(--light);
            padding: 20px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .related-links h3 {
            color: var(--dark);
            margin-bottom: 15px;
        }
        .related-links ul li {
            margin-bottom: 10px;
        }
        .related-links a {
            color: var(--primary);
            display: flex;
            align-items: center;
        }
        .related-links a:hover {
            text-decoration: underline;
            color: var(--secondary);
        }
        .related-links i {
            margin-right: 10px;
            color: var(--accent);
        }
        .featured-img {
            margin: 30px 0;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-img figcaption {
            text-align: center;
            font-style: italic;
            padding: 10px;
            color: var(--gray);
            background: #f9f9f9;
        }
        .emoji-bullet {
            margin-right: 10px;
            font-size: 1.2em;
        }
        .sidebar {
            padding-left: 20px;
            border-left: 2px dashed #ddd;
        }
        @media (max-width: 992px) {
            .sidebar {
                border-left: none;
                padding-left: 0;
                border-top: 2px dashed #ddd;
                padding-top: 40px;
            }
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: var(--shadow);
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            font-size: 1.8rem;
            color: gold;
            margin-bottom: 15px;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .rating-widget select, .rating-widget textarea {
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
        }
        .rating-widget textarea {
            min-height: 120px;
            resize: vertical;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-widget h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #ccc;
        }
        friend-link a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }