* { 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: #f8f9fa;
            background-image: linear-gradient(to bottom, #0c1a2d, #1a2b3c 10%, #f8f9fa 10%);
            background-attachment: fixed;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(12, 26, 45, 0.95);
            color: #fff;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffcc00;
            text-decoration: none;
            font-family: 'Arial Black', sans-serif;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: -1px;
        }
        .logo a span { color: #00b4ff; }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 1.8rem;
        }
        nav ul li a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: color 0.3s;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        nav ul li a:hover, nav ul li a.active {
            color: #ffcc00;
            background: rgba(255, 204, 0, 0.1);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #ffcc00;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            border-radius: 0 0 8px 8px;
        }
        .breadcrumb a {
            color: #007bff;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-bar {
            background: #fff;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 2rem auto;
            max-width: 800px;
        }
        .search-bar form {
            display: flex;
        }
        .search-bar input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #00b4ff;
            border-radius: 50px 0 0 50px;
            font-size: 1.1rem;
            outline: none;
        }
        .search-bar button {
            background: #00b4ff;
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-bar button:hover { background: #0099d6; }
        main {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            padding: 2.5rem;
            margin-bottom: 3rem;
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 8px;
            height: 100%;
            background: linear-gradient(to bottom, #ffcc00, #00b4ff);
        }
        h1 {
            color: #0c1a2d;
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #ffcc00;
            padding-bottom: 0.7rem;
        }
        h2 {
            color: #1a2b3c;
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-left: 0.8rem;
            border-left: 5px solid #00b4ff;
        }
        h3 {
            color: #2c3e50;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #ffcc0077 0%, #ffcc0077 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 700;
        }
        .emoji { font-size: 1.3em; margin-right: 0.3rem; }
        .tip-box {
            background: #e8f4fc;
            border-left: 5px solid #00b4ff;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box strong { color: #007bff; }
        .article-img {
            width: 100%;
            max-width: 900px;
            height: auto;
            border-radius: 12px;
            margin: 2.5rem auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            transition: transform 0.5s;
        }
        .article-img:hover { transform: scale(1.02); }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-box, .rating-box {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid #dee2e6;
        }
        .comment-box h3, .rating-box h3 { margin-top: 0; }
        textarea, select, input[type="text"], input[type="email"] {
            width: 100%;
            padding: 1rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
        }
        button.submit-btn {
            background: linear-gradient(to right, #00b4ff, #007bff);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        button.submit-btn:hover {
            background: linear-gradient(to right, #0099d6, #0056b3);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(0, 180, 255, 0.4);
        }
        .stars {
            display: flex;
            justify-content: center;
            margin: 1.5rem 0;
            font-size: 2.5rem;
            color: #ffcc00;
            cursor: pointer;
        }
        .stars i { margin: 0 0.3rem; transition: transform 0.2s; }
        .stars i:hover { transform: scale(1.2); }
        .footer-links {
            background: #1a2b3c;
            padding: 3rem 0;
            margin-top: 3rem;
        }
        .web-link-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: #2c3e50;
            padding: 1.2rem;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: #3a506b;
            transform: translateY(-5px);
        }
        .web-link a {
            color: #ffcc00;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            display: block;
        }
        .web-link a:hover { text-decoration: underline; }
        footer {
            background: #0c1a2d;
            color: #b0b7c3;
            text-align: center;
            padding: 2rem 0;
            font-size: 0.95rem;
        }
        footer a { color: #ffcc00; text-decoration: none; }
        footer a:hover { text-decoration: underline; }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .header-content { flex-wrap: wrap; }
            nav ul { display: none; flex-direction: column; width: 100%; background: #0c1a2d; position: absolute; top: 100%; left: 0; padding: 1rem; }
            nav ul.active { display: flex; }
            nav ul li { margin: 0.5rem 0; }
            .hamburger { display: block; }
            .interactive-section { grid-template-columns: 1fr; }
        }
        @media (max-width: 576px) {
            .container { padding: 0 15px; }
            main { padding: 1.8rem; }
            h1 { font-size: 2rem; }
            .search-bar form { flex-direction: column; }
            .search-bar input { border-radius: 50px; margin-bottom: 0.5rem; }
            .search-bar button { border-radius: 50px; padding: 0.8rem; }
        }