:root {
            --primary-color: #FF6B00;
            --secondary-color: #1A1A2E;
            --accent-color: #00ADB5;
            --light-color: #F5F5F5;
            --dark-color: #121212;
            --text-color: #333;
            --text-light: #777;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-main);
            line-height: 1.8;
            color: var(--text-color);
            background-color: var(--light-color);
            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;
        }
        header {
            background-color: var(--secondary-color);
            color: white;
            padding: 15px 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .logo span {
            background: linear-gradient(90deg, #FF6B00, #FFD166);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        nav ul {
            display: flex;
            gap: 25px;
        }
        nav a {
            padding: 8px 12px;
            border-radius: 5px;
            font-weight: 500;
        }
        nav a:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f8f9fa;
            border-bottom: 1px solid #ddd;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        main {
            padding: 30px 0;
            background-color: white;
            border-radius: 10px;
            margin: 20px auto;
            box-shadow: var(--shadow);
        }
        .article-header {
            text-align: center;
            padding-bottom: 30px;
            border-bottom: 2px solid var(--light-color);
            margin-bottom: 40px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--secondary-color);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .subtitle {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 800px;
            margin: 0 auto;
        }
        .content-section {
            padding: 20px;
            margin-bottom: 40px;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px dashed var(--accent-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 25px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--accent-color);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #FFF9E6;
            border-left: 5px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 10px 10px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 8px;
        }
        .featured-image {
            margin: 30px auto;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            max-width: 900px;
        }
        .featured-image figcaption {
            text-align: center;
            font-style: italic;
            color: var(--text-light);
            padding: 10px;
            background-color: #f9f9f9;
        }
        .interactive-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature-box {
            background-color: var(--light-color);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .feature-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 25px rgba(0,0,0,0.15);
        }
        .feature-box h3 {
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-box form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-top: 15px;
        }
        input, textarea, select {
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 8px rgba(255,107,0,0.3);
        }
        button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 14px 20px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: var(--transition);
        }
        button:hover {
            background-color: #E55A00;
            transform: scale(1.05);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .rating i {
            color: #FFD700;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .rating i:hover {
            transform: scale(1.2);
        }
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #ddd;
            padding: 8px 0;
            display: block;
            border-bottom: 1px dotted #444;
        }
        friend-link a:hover {
            color: var(--primary-color);
            padding-left: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.3rem; }
            h2 { font-size: 1.9rem; }
            nav ul { gap: 15px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--secondary-color);
                padding: 20px;
                box-shadow: var(--shadow);
            }
            nav.active ul {
                display: flex;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .interactive-features {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.9rem; }
            h2 { font-size: 1.6rem; }
            .container { padding: 0 15px; }
            .feature-box { padding: 20px; }
        }