* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f0f8ff;
            color: #333;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: #ff6b8b;
            text-decoration: none;
            transition: color 0.3s ease, transform 0.2s ease;
        }
        a:hover {
            color: #ff4757;
            transform: translateY(-1px);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #ffeb3b;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover {
            animation: bounce 0.5s;
        }
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #6a11cb;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #e9f5ff;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #ff6b8b;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2rem;
            background: linear-gradient(to right, #ffecd2, #fcb69f);
            border-radius: 15px;
        }
        h1 {
            font-size: 2.8rem;
            color: #2d3436;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
        }
        .article-meta {
            color: #636e72;
            font-style: italic;
            margin-top: 1rem;
        }
        .content-section {
            margin-bottom: 3rem;
            padding: 2rem;
            background-color: white;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
        }
        .content-section:hover {
            transform: translateY(-5px);
        }
        h2 {
            color: #6a11cb;
            font-size: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffeb3b;
        }
        h3 {
            color: #2575fc;
            font-size: 1.6rem;
            margin: 1.5rem 0 1rem;
        }
        h4 {
            color: #00b09b;
            font-size: 1.3rem;
            margin: 1.2rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 1.5rem;
            border-left: 5px solid #ffeb3b;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 10px;
            border-top: 4px solid #6a11cb;
        }
        .feature-card h4 {
            color: #6a11cb;
        }
        .interactive-section {
            background-color: #f1f8ff;
            padding: 2.5rem;
            border-radius: 15px;
            margin: 3rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2d3436;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #6a11cb;
        }
        button {
            background: linear-gradient(to right, #6a11cb, #2575fc);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        button:hover {
            background: linear-gradient(to right, #2575fc, #6a11cb);
            transform: scale(1.05);
        }
        .stars {
            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: #ffeb3b;
        }
        footer {
            background-color: #2d3436;
            color: #dfe6e9;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .footer-section h3 {
            color: #ffeb3b;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #b2bec3;
            display: block;
            margin-bottom: 0.8rem;
        }
        .footer-links a:hover {
            color: #ffeb3b;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background-color: #444;
            padding: 0.5rem 1rem;
            margin: 0.5rem;
            border-radius: 5px;
            color: #ffeb3b;
        }
        friend-link a {
            color: #ffeb3b;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #b2bec3;
        }
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .emoji { font-size: 1.2em; }
        .bold { font-weight: 800; color: #2d3436; }
        .keyword { background-color: #fff9c4; padding: 0.2rem 0.4rem; border-radius: 3px; }