:root {
            --primary: #FF5722;
            --secondary: #2196F3;
            --dark: #1A1A2E;
            --light: #F5F7FA;
            --gray: #6C757D;
            --success: #4CAF50;
            --warning: #FFC107;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            line-height: 1.7;
            color: #333;
            background-color: var(--light);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--secondary);
            transition: color 0.3s;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark);
            color: white;
            padding: 1rem 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: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .my-logo span {
            color: var(--secondary);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--primary);
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #f1f1f1;
            padding: 0.8rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--gray);
            margin: 0 5px;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            padding: 2rem 0;
            text-align: center;
            color: white;
            margin-bottom: 2rem;
        }
        .search-box {
            max-width: 600px;
            margin: 1rem auto 0;
            display: flex;
        }
        .search-box input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: none;
            border-radius: 30px 0 0 30px;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background-color: var(--dark);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 30px 30px 0;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s;
        }
        .search-box button:hover {
            background-color: #000;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        h1 {
            color: var(--dark);
            font-size: 2.8rem;
            margin-bottom: 1.2rem;
            line-height: 1.2;
        }
        h2 {
            color: var(--secondary);
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: var(--primary);
            font-size: 1.5rem;
            margin: 1.8rem 0 1rem;
        }
        h4 {
            color: var(--gray);
            font-size: 1.2rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-left: 5px solid var(--warning);
            margin: 1.5rem 0;
            border-radius: 0 5px 5px 0;
        }
        .img-container {
            margin: 2rem auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        .img-container img {
            width: 100%;
            transition: transform 0.5s;
        }
        .img-container img:hover {
            transform: scale(1.03);
        }
        .caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            padding: 0.5rem;
            font-size: 0.9rem;
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background-color: #f8f9fa;
            border-radius: 8px;
            padding: 1.2rem;
            transition: transform 0.3s, box-shadow 0.3s;
            border-left: 4px solid var(--secondary);
        }
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .interactive-section {
            background-color: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin-top: 3rem;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: var(--font-main);
            font-size: 1rem;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: background-color 0.3s, transform 0.3s;
        }
        .btn:hover {
            background-color: #e64a19;
            transform: translateY(-3px);
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: var(--warning);
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: var(--gray);
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        footer {
            background-color: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h4 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
        }
        .footer-section ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-section li {
            margin-bottom: 0.8rem;
        }
        .footer-section a {
            color: #ccc;
        }
        .footer-section a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background-color: #2a2a40;
            padding: 1rem;
            border-radius: 5px;
            margin-bottom: 1rem;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #333;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 2rem; }
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--dark);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            nav ul.active {
                display: flex;
            }
            .hamburger { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .footer-content { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            article { padding: 1.5rem; }
            .search-box { flex-direction: column; }
            .search-box input { border-radius: 30px; margin-bottom: 10px; }
            .search-box button { border-radius: 30px; padding: 0.9rem; }
        }