* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #6a11cb;
            --secondary-color: #2575fc;
            --accent-color: #ff8a00;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --dark-bg: #2d3436;
            --spacing-sm: 0.5rem;
            --spacing-md: 1rem;
            --spacing-lg: 2rem;
            --border-radius: 8px;
        }
        body {
            color: var(--text-color);
            line-height: 1.6;
            background: linear-gradient(135deg, var(--light-bg) 0%, #ffffff 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent-color);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }
        header {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            padding: var(--spacing-md) 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: white;
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            background-image: linear-gradient(to right, #ff8a00, #da1b60);
        }
        .my-logo:hover {
            transform: scale(1.05);
            transition: transform 0.3s;
        }
        #nav-toggle {
            display: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-lg);
        }
        nav a {
            color: white;
            font-weight: 600;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--border-radius);
        }
        nav a:hover, nav a.active {
            background: rgba(255, 255, 255, 0.2);
        }
        .breadcrumb {
            padding: var(--spacing-md) 0;
            font-size: 0.9rem;
            color: #ccc;
        }
        .breadcrumb a {
            color: #ddd;
        }
        .breadcrumb a:hover {
            color: white;
        }
        main {
            flex: 1;
            padding: var(--spacing-lg) 0;
        }
        article {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
            margin-bottom: var(--spacing-lg);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: var(--spacing-md);
            line-height: 1.2;
            border-bottom: 4px solid var(--accent-color);
            padding-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
            padding-left: var(--spacing-sm);
            border-left: 5px solid var(--primary-color);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--dark-bg);
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
        }
        p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
            font-size: 1.1rem;
        }
        .intro {
            font-size: 1.2rem;
            font-weight: 500;
            color: #444;
            background: var(--light-bg);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background: linear-gradient(120deg, #ffef78 0%, #ffef78 100%);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: bold;
        }
        em {
            color: var(--primary-color);
            font-style: italic;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: var(--spacing-lg) auto;
            border-radius: var(--border-radius);
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        img:hover {
            transform: scale(1.02);
        }
        .figure-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: calc(-1 * var(--spacing-md));
            margin-bottom: var(--spacing-lg);
        }
        .content-block {
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px dashed #ddd;
        }
        ul, ol {
            padding-left: var(--spacing-lg);
            margin-bottom: var(--spacing-md);
        }
        li {
            margin-bottom: var(--spacing-sm);
        }
        .functional-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
        }
        .functional-box {
            background: var(--light-bg);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border-top: 5px solid var(--primary-color);
        }
        .functional-box h3 {
            color: var(--primary-color);
            margin-top: 0;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        input, textarea, select {
            padding: var(--spacing-md);
            border: 1px solid #ccc;
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: border 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        button {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            padding: var(--spacing-md) var(--spacing-lg);
            border-radius: var(--border-radius);
            cursor: pointer;
            font-weight: bold;
            font-size: 1rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(106, 17, 203, 0.3);
        }
        .rating {
            display: flex;
            gap: var(--spacing-sm);
            font-size: 1.8rem;
            color: #ffc107;
            margin-bottom: var(--spacing-md);
        }
        .rating input {
            display: none;
        }
        .rating label {
            cursor: pointer;
        }
        footer {
            background: var(--dark-bg);
            color: white;
            padding: var(--spacing-lg) 0;
            margin-top: auto;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-section h3 {
            color: var(--accent-color);
            margin-bottom: var(--spacing-md);
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            list-style: none;
            padding: 0;
        }
        .friend-links a {
            color: #ddd;
            background: rgba(255,255,255,0.1);
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--border-radius);
            display: inline-block;
        }
        .friend-links a:hover {
            background: rgba(255,255,255,0.2);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: var(--spacing-lg);
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--dark-bg);
                position: absolute;
                top: 100%;
                left: 0;
                padding: var(--spacing-md);
                border-radius: 0 0 var(--border-radius) var(--border-radius);
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            }
            #nav-toggle:checked ~ ul {
                display: flex;
            }
            nav a {
                display: block;
                padding: var(--spacing-md);
                border-radius: 4px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .functional-section {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }