* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
        ul, ol { list-style-position: inside; margin-left: 1rem; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .bold { font-weight: 700; }
        .highlight { background-color: #fffacd; padding: 0 4px; border-radius: 3px; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        header {
            background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2rem;
            font-weight: 900;
            color: #FFD166;
            text-shadow: 2px 2px 0 #FF6B6B, 4px 4px 0 rgba(0,0,0,0.15);
            letter-spacing: -1px;
        }
        .my-logo:hover { color: #fff; }
        .desktop-nav ul {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            border-bottom-color: #FFD166;
            color: #FFD166;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            background: none;
            border: none;
            color: white;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #4ECDC4;
            flex-direction: column;
            padding: 1rem;
            box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            padding: 0.8rem;
            border-bottom: 1px solid rgba(255,255,255,0.2);
        }
        .mobile-nav a:hover { background: rgba(255,255,255,0.1); }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: #6c757d; }
        .breadcrumb a:hover { color: #FF6B6B; }
        .breadcrumb span { color: #495057; }
        main { padding: 2rem 0; background: white; }
        article { max-width: 900px; margin: 0 auto; padding: 0 20px; }
        h1 {
            font-size: 2.8rem;
            color: #2D3047;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-left: 6px solid #FF6B6B;
            padding-left: 1rem;
        }
        h2 {
            font-size: 2rem;
            color: #4ECDC4;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #dee2e6;
        }
        h3 {
            font-size: 1.6rem;
            color: #FF6B6B;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #1A936F;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
            hyphens: auto;
        }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border: 5px solid #FFD166;
        }
        .interactive-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-left: 5px solid #4ECDC4;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip { background-color: #e7f5ff; border-left-color: #339af0; }
        .warning { background-color: #fff3cd; border-left-color: #ffc107; }
        .form-section {
            background: #f1f3f5;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .form-title { margin-top: 0; color: #2D3047; }
        .form-group { margin-bottom: 1.2rem; }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #495057;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 5px;
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #4ECDC4;
            box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.25);
        }
        button, .btn {
            background: linear-gradient(to right, #FF6B6B, #FF8E8E);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #FF5252, #FF7B7B);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: #FFD166;
            margin: 0.5rem 0;
        }
        .rating-stars i { cursor: pointer; }
        .internal-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .internal-links a {
            background: #4ECDC4;
            color: white;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
        }
        .internal-links a:hover {
            background: #3DBBB4;
            transform: scale(1.02);
        }
        footer {
            background: #2D3047;
            color: #adb5bd;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #FFD166;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            border-bottom: none;
        }
        friend-link {
            display: block;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            color: #4ECDC4;
        }
        friend-link a:hover {
            color: #FFD166;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.9rem;
            color: #6c757d;
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.4rem; }
            .header-container { padding: 0 20px; }
            .internal-links { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; text-align: center; }
        }