* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #f0f0f0;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #4fc3f7;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #29b6f6;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: rgba(10, 25, 47, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid #0d47a1;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #00bcd4, #2979ff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        }
        .logo a {
            color: inherit;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            color: #bbdefb;
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 5px;
            font-size: 1.1rem;
        }
        .desktop-nav a:hover {
            background: rgba(41, 121, 255, 0.2);
            color: #ffffff;
        }
        .mobile-menu-btn {
            display: none;
            font-size: 1.8rem;
            color: #bbdefb;
            cursor: pointer;
            background: none;
            border: none;
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(10, 25, 47, 0.98);
            border-top: 1px solid #0d47a1;
            padding: 20px;
            flex-direction: column;
            gap: 15px;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: #bbdefb;
            font-weight: 600;
            padding: 12px;
            border-bottom: 1px solid #1e3a5f;
            font-size: 1.2rem;
        }
        .breadcrumb {
            padding: 15px 0;
            background: rgba(255, 255, 255, 0.03);
            margin-bottom: 20px;
        }
        .breadcrumb ul {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 10px;
            color: #64b5f6;
        }
        .breadcrumb a {
            color: #90caf9;
        }
        main {
            flex: 1;
            padding: 30px 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 2px solid #0d47a1;
        }
        h1 {
            font-size: 3rem;
            margin-bottom: 15px;
            color: #bbdefb;
            line-height: 1.2;
        }
        .article-meta {
            color: #90caf9;
            font-size: 1rem;
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .search-container {
            background: rgba(30, 58, 95, 0.6);
            padding: 25px;
            border-radius: 12px;
            margin: 30px 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 15px 20px;
            border: none;
            border-radius: 8px 0 0 8px;
            font-size: 1.1rem;
            background: #0d1b2a;
            color: #f0f0f0;
        }
        .search-button {
            background: linear-gradient(90deg, #2979ff, #00bcd4);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.1rem;
            transition: transform 0.3s;
        }
        .search-button:hover {
            transform: scale(1.03);
        }
        .content-section {
            margin-bottom: 50px;
        }
        h2 {
            font-size: 2.3rem;
            color: #81d4fa;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px dashed #2979ff;
        }
        h3 {
            font-size: 1.8rem;
            color: #4fc3f7;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 22px;
            font-size: 1.15rem;
            text-align: justify;
            hyphens: auto;
        }
        .highlight {
            background: rgba(41, 121, 255, 0.15);
            border-left: 4px solid #2979ff;
            padding: 20px;
            border-radius: 0 8px 8px 0;
            margin: 25px 0;
        }
        .tip-box {
            background: rgba(0, 188, 212, 0.1);
            border: 1px solid #00bcd4;
            border-radius: 10px;
            padding: 20px;
            margin: 25px 0;
        }
        .tip-box h4 {
            color: #00bcd4;
            margin-bottom: 10px;
            font-size: 1.3rem;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            max-width: 800px;
            margin: 0 auto;
            border: 2px solid #0d47a1;
        }
        .image-caption {
            font-style: italic;
            color: #90caf9;
            margin-top: 10px;
            font-size: 0.95rem;
        }
        .interactive-box {
            background: linear-gradient(145deg, #1e3a5f, #0d1b2a);
            border-radius: 15px;
            padding: 30px;
            margin: 40px 0;
            border: 1px solid #2979ff;
            transition: transform 0.4s, box-shadow 0.4s;
        }
        .interactive-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(41, 121, 255, 0.3);
        }
        .rating-section, .comments-section {
            background: rgba(30, 58, 95, 0.6);
            padding: 30px;
            border-radius: 12px;
            margin-top: 40px;
        }
        .rating-form, .comment-form {
            display: grid;
            gap: 20px;
            margin-top: 20px;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .star-rating .star {
            transition: color 0.2s;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: #bbdefb;
        }
        input, textarea, select {
            padding: 15px;
            border: 1px solid #1e3a5f;
            border-radius: 8px;
            background: #0d1b2a;
            color: #f0f0f0;
            font-size: 1rem;
        }
        textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-button {
            background: linear-gradient(90deg, #00c853, #64dd17);
            color: white;
            border: none;
            padding: 16px 30px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1.1rem;
            transition: opacity 0.3s;
            justify-self: start;
        }
        .submit-button:hover {
            opacity: 0.9;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid #1e3a5f;
            border-radius: 8px;
            padding: 20px;
            transition: background 0.3s, border-color 0.3s;
        }
        .web-link:hover {
            background: rgba(41, 121, 255, 0.1);
            border-color: #2979ff;
        }
        .web-link a {
            color: #bbdefb;
            font-weight: 600;
            display: block;
        }
        footer {
            background: #0d1b2a;
            border-top: 2px solid #0d47a1;
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: #4fc3f7;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #1e3a5f;
            color: #90caf9;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .desktop-nav { display: none; }
            .mobile-menu-btn { display: block; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: 8px; margin-bottom: 10px; }
            .search-button { border-radius: 8px; padding: 15px; }
            .article-meta { flex-direction: column; gap: 10px; }
            .web-links-container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .logo { font-size: 1.8rem; }
            .interactive-box { padding: 20px; }
        }