* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2a2d43;
            --secondary-color: #ff6b8b;
            --accent-color: #4cc9f0;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --dark-bg: #1a1c2e;
            --border-color: #e1e5e9;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
            --border-radius: 8px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--dark-bg);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2rem;
            color: var(--accent-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: var(--transition);
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--light-bg);
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin-left: 0.5rem;
            color: #999;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 2rem 0;
        }
        article {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .intro {
            font-size: 1.2rem;
            font-weight: 500;
            color: #444;
            background-color: #f0f8ff;
            padding: 1.5rem;
            border-left: 4px solid var(--accent-color);
            margin-bottom: 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
            font-weight: 600;
        }
        strong {
            color: var(--primary-color);
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--secondary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-color);
            border-bottom: 1px solid var(--primary-color);
        }
        .feature-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-img:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            margin-bottom: 2rem;
        }
        ul, ol {
            margin-bottom: 1.5rem;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .form-container {
            background-color: var(--light-bg);
            padding: 2rem;
            border-radius: var(--border-radius);
            margin: 3rem 0;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary-color);
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.2);
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            background-color: var(--secondary-color);
            color: white;
            padding: 0.8rem 1.8rem;
            border: none;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            font-size: 1rem;
        }
        .btn:hover {
            background-color: #ff5577;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(255, 107, 139, 0.3);
        }
        .btn-primary {
            background-color: var(--accent-color);
        }
        .btn-primary:hover {
            background-color: #3ab8dd;
            box-shadow: 0 6px 12px rgba(76, 201, 240, 0.3);
        }
        .rating-system {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1rem 0;
        }
        .stars {
            display: flex;
            gap: 0.2rem;
        }
        .star {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffcc00;
        }
        .search-box {
            display: flex;
            margin: 2rem 0;
            max-width: 600px;
        }
        .search-box input {
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            border-right: none;
        }
        .search-box .btn {
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            white-space: nowrap;
        }
        .last-updated {
            background-color: #e8f5e9;
            padding: 1rem;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        footer {
            background-color: var(--dark-bg);
            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 h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: var(--border-radius);
            margin: 1rem 0;
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 {
                font-size: 2.3rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .nav-links {
                gap: 1rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--dark-bg);
                flex-direction: column;
                align-items: center;
                padding: 2rem 0;
                gap: 1.5rem;
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
            }
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            .header-content {
                padding: 0 15px;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            article {
                padding: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .form-container {
                padding: 1.5rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .pull-quote {
            float: right;
            width: 300px;
            margin: 0 0 1.5rem 2rem;
            padding: 1.5rem;
            background-color: var(--light-bg);
            border-left: 4px solid var(--secondary-color);
            font-style: italic;
            font-size: 1.1rem;
            border-radius: var(--border-radius);
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-item {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            text-align: center;
            border-top: 4px solid var(--accent-color);
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary-color);
            display: block;
            line-height: 1;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--primary-color);
            margin-top: 0.5rem;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem;
            text-align: left;
        }
        .comparison-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-table tr:nth-child(even) {
            background-color: var(--light-bg);
        }
        .comparison-table tr:hover {
            background-color: rgba(76, 201, 240, 0.1);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .content-block {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
        }
        .tip-box {
            background-color: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .tip-box h4 {
            color: #2e7d32;
            margin-top: 0;
        }
        .warning-box {
            background-color: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .warning-box h4 {
            color: #ef6c00;
            margin-top: 0;
        }