* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: #2c3e50;
            margin-bottom: 1.2rem;
            font-weight: 700;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            background: linear-gradient(90deg, #FF6B6B, #4ECDC4, #45B7D1);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #FFD166;
            margin-top: 1.5rem;
        }
        h2 {
            font-size: 2.2rem;
            color: #3498db;
            border-left: 5px solid #FF9F1C;
            padding-left: 15px;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #2ecc71;
            border-bottom: 2px dashed #AED6F1;
            padding-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
            color: #444;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.5rem;
            font-weight: 900;
            text-decoration: none;
            color: #FFD166;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s ease;
        }
        .logo:hover {
            transform: scale(1.05);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            text-decoration: none;
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 600;
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.1);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
        }
        .breadcrumb a {
            color: #3498db;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 0.5rem;
            color: #777;
        }
        main {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            margin: 2rem auto;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, #FF6B6B, #4ECDC4, #45B7D1);
        }
        section {
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #eee;
        }
        section:last-of-type {
            border-bottom: none;
        }
        .feature-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
            border: 5px solid white;
        }
        .feature-img:hover {
            transform: scale(1.01);
        }
        .callout {
            background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
            border-left: 5px solid #2196F3;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 10px 10px 0;
            box-shadow: 0 5px 15px rgba(33, 150, 243, 0.1);
        }
        .callout.warning {
            background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
            border-left-color: #FF9800;
        }
        .callout.success {
            background: linear-gradient(135deg, #E8F5E9, #C8E6C9);
            border-left-color: #4CAF50;
        }
        ul, ol {
            margin: 1.5rem 0;
            padding-left: 2rem;
        }
        li {
            margin-bottom: 0.8rem;
            line-height: 1.7;
        }
        .highlight {
            background: linear-gradient(120deg, #FFECB3 0%, #FFECB3 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
            color: #333;
        }
        .keyword {
            background: #E3F2FD;
            color: #1565C0;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            font-weight: 600;
            display: inline-block;
            margin: 0.2rem;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 1px solid #BBDEFB;
        }
        .keyword:hover {
            background: #1565C0;
            color: white;
            transform: translateY(-2px);
        }
        .search-box {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 2.5rem;
            border-radius: 15px;
            margin: 3rem 0;
            text-align: center;
            color: white;
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }
        .search-box h3 {
            color: white;
            border: none;
            margin-bottom: 1.5rem;
            font-size: 2rem;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-btn {
            background: #FFD166;
            color: #333;
            border: none;
            padding: 1rem 2rem;
            border-radius: 0 50px 50px 0;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .search-btn:hover {
            background: #FFC145;
            transform: scale(1.05);
        }
        .ratings {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 15px;
            margin: 3rem 0;
            border: 2px solid #e9ecef;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
        }
        .star {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: #FFD700;
        }
        .comments {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            margin-top: 3rem;
            border: 2px solid #e9ecef;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #dee2e6;
            border-radius: 10px;
            font-size: 1rem;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 120px;
        }
        .submit-btn {
            background: linear-gradient(135deg, #2ecc71, #27ae60);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(46, 204, 113, 0.4);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 3rem 0;
            padding: 2rem 0;
            border-top: 1px solid #dee2e6;
            border-bottom: 1px solid #dee2e6;
        }
        .web-link {
            background: white;
            padding: 1.2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            text-align: center;
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            background: #f8f9fa;
        }
        .web-link a {
            color: #3498db;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
        }
        .web-link a:hover {
            color: #2980b9;
            text-decoration: underline;
        }
        footer {
            background: linear-gradient(135deg, #2c3e50, #34495e);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #bdc3c7;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            main {
                padding: 1.5rem;
                margin: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input,
            .search-btn {
                border-radius: 50px;
                margin-bottom: 1rem;
            }
            .footer-content {
                flex-direction: column;
                text-align: center;
            }
            .star-rating {
                flex-wrap: wrap;
            }
            .star {
                font-size: 2rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        section {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            header, footer, .search-box, .ratings, .comments {
                display: none;
            }
            body {
                background: white;
                color: black;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
        }