:root {
            --primary: #3498db;
            --secondary: #2ecc71;
            --accent: #e74c3c;
            --dark: #2c3e50;
            --light: #ecf0f1;
            --gray: #95a5a6;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
            font-size: 16px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: var(--light);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(25, 25, 35, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            color: var(--light);
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            border-bottom-color: var(--secondary);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin: 15px 0;
        }
        .mobile-nav a {
            color: var(--light);
            font-size: 1.1rem;
            display: block;
            padding: 10px;
            border-radius: var(--radius);
        }
        .mobile-nav a:hover {
            background-color: rgba(52, 152, 219, 0.2);
        }
        .breadcrumb {
            background-color: rgba(255,255,255,0.05);
            padding: 12px 0;
            margin-top: 5px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--secondary);
            margin: 0 8px;
        }
        main {
            flex: 1;
            padding: 40px 0;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: rgba(30, 30, 46, 0.8);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        h1 {
            font-size: 2.8rem;
            margin-bottom: 25px;
            color: var(--secondary);
            line-height: 1.2;
            border-left: 5px solid var(--accent);
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            margin: 50px 0 20px;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 2px dashed rgba(52, 152, 219, 0.5);
        }
        h3 {
            font-size: 1.6rem;
            margin: 35px 0 15px;
            color: #7fdbff;
        }
        h4 {
            font-size: 1.3rem;
            margin: 25px 0 10px;
            color: var(--gray);
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background: linear-gradient(90deg, rgba(46, 204, 113, 0.15), transparent);
            border-left: 4px solid var(--secondary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 30px 0;
            border: 3px solid var(--primary);
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 30px 0;
            padding: 20px;
            background: rgba(44, 62, 80, 0.5);
            border-radius: var(--radius);
        }
        .link-list a {
            background: rgba(52, 152, 219, 0.2);
            padding: 10px 20px;
            border-radius: 50px;
            border: 1px solid rgba(52, 152, 219, 0.5);
        }
        .link-list a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        .interactive-section {
            margin: 50px 0;
            padding: 30px;
            background: rgba(25, 25, 35, 0.9);
            border-radius: var(--radius);
            border: 1px solid rgba(46, 204, 113, 0.3);
        }
        .interactive-section h3 {
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 20px;
        }
        input, textarea, select {
            padding: 15px;
            border-radius: var(--radius);
            border: 1px solid var(--gray);
            background: rgba(255,255,255,0.1);
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3);
        }
        button {
            padding: 15px 30px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            border-radius: var(--radius);
            font-weight: bold;
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(0,0,0,0.2);
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .rating-stars i {
            color: var(--gray);
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f39c12;
        }
        .update-time {
            display: inline-block;
            background: var(--dark);
            color: var(--secondary);
            padding: 10px 20px;
            border-radius: var(--radius);
            margin: 20px 0;
            font-weight: bold;
            font-size: 0.9rem;
        }
        aside {
            background: rgba(30, 30, 46, 0.8);
            border-radius: var(--radius);
            padding: 25px;
            align-self: start;
            position: sticky;
            top: 120px;
            box-shadow: var(--shadow);
        }
        aside h3 {
            margin-top: 0;
            color: var(--secondary);
        }
        aside ul {
            list-style: none;
            margin-top: 20px;
        }
        aside li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        aside a {
            color: var(--light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        aside a:hover {
            color: var(--primary);
        }
        aside i {
            color: var(--secondary);
        }
        footer {
            background-color: rgba(20, 20, 30, 0.98);
            padding: 50px 0 20px;
            margin-top: 60px;
            border-top: 2px solid var(--primary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: var(--radius);
            margin-bottom: 10px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(52, 152, 219, 0.2);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            :root { font-size: 15px; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .desktop-nav { display: none; }
            .mobile-menu-btn { display: block; }
            .header-container { padding: 0 10px; }
            article, .interactive-section { padding: 25px; }
            .content-grid { gap: 25px; }
        }