* {
            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;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul, ol {
            list-style-position: inside;
        }
        p {
            margin-bottom: 1.2em;
            text-align: justify;
        }
        h1, h2, h3, h4 {
            color: #1a237e;
            margin-top: 1.5em;
            margin-bottom: 0.7em;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid #ff9800;
            padding-bottom: 10px;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid #4caf50;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.6rem;
            color: #5c6bc0;
        }
        .highlight {
            background-color: #fff9c4;
            padding: 0.3em 0.6em;
            border-radius: 4px;
            font-weight: bold;
        }
        .lead {
            font-size: 1.3rem;
            color: #555;
            font-weight: 500;
        }
        .note {
            background-color: #e3f2fd;
            border-left: 4px solid #2196f3;
            padding: 1.2em;
            margin: 1.5em 0;
            border-radius: 0 5px 5px 0;
        }
        .tip {
            background-color: #f1f8e9;
            border-left: 4px solid #8bc34a;
            padding: 1.2em;
            margin: 1.5em 0;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 992px) {
            .content-wrapper {
                grid-template-columns: 3fr 1fr;
            }
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #ff9800;
        }
        .logo span {
            color: white;
        }
        .nav-desktop {
            display: none;
        }
        @media (min-width: 768px) {
            .nav-desktop {
                display: flex;
                gap: 2rem;
            }
        }
        .nav-desktop a {
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-desktop a:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            font-size: 1.8rem;
            cursor: pointer;
            color: #ff9800;
            display: block;
        }
        @media (min-width: 768px) {
            .hamburger {
                display: none;
            }
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: #283593;
            padding: 1rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            transition: background 0.3s;
        }
        .nav-mobile a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            background-color: #e8eaf6;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: #555;
        }
        .breadcrumb a {
            color: #1a237e;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: #888;
        }
        main {
            padding: 2rem 0;
            background-color: white;
            box-shadow: 0 0 20px rgba(0,0,0,0.05);
            border-radius: 8px;
            margin-top: 1rem;
            margin-bottom: 2rem;
        }
        .article-hero {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #eee;
        }
        .article-hero img {
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            margin: 1.5rem auto;
            max-height: 400px;
            object-fit: cover;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            color: #666;
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .content-section {
            padding: 0 1.5rem;
        }
        @media (min-width: 768px) {
            .content-section {
                padding: 0 2.5rem;
            }
        }
        .sidebar {
            background-color: #f5f5f5;
            padding: 1.5rem;
            border-radius: 8px;
            height: fit-content;
            border-left: 5px solid #ff9800;
        }
        .sidebar h3 {
            color: #1a237e;
            margin-top: 0;
        }
        .sidebar ul {
            list-style: none;
            padding-left: 0;
        }
        .sidebar li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #ccc;
        }
        .sidebar a:hover {
            color: #ff9800;
        }
        .search-box {
            display: flex;
            margin: 1.5rem 0;
        }
        .search-box input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #1a237e;
            border-radius: 5px 0 0 5px;
            font-size: 1rem;
        }
        .search-box button {
            background-color: #1a237e;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 5px 5px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-box button:hover {
            background-color: #283593;
        }
        .user-rating {
            background-color: #f9f9f9;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid #ddd;
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0 15px;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ff9800;
        }
        .rating-form button {
            background-color: #4caf50;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            margin-top: 10px;
            transition: background 0.3s;
        }
        .rating-form button:hover {
            background-color: #388e3c;
        }
        .comments-section {
            margin-top: 3rem;
            border-top: 2px solid #eee;
            padding-top: 2rem;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 10px;
            min-height: 120px;
            resize: vertical;
        }
        .comment-form button {
            background-color: #2196f3;
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background 0.3s;
        }
        .comment-form button:hover {
            background-color: #1976d2;
        }
        .web-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
            padding: 2rem;
            background-color: #1a237e;
            color: white;
        }
        .web-link {
            background-color: rgba(255,255,255,0.1);
            padding: 10px 15px;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-3px);
        }
        footer {
            background-color: #0d1440;
            color: #bbb;
            text-align: center;
            padding: 2rem;
            font-size: 0.9rem;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links a {
            color: #ff9800;
        }
        .footer-links a:hover {
            text-decoration: underline;
        }
        .copyright {
            margin-top: 1rem;
            border-top: 1px solid #283593;
            padding-top: 1rem;
        }
        @media (max-width: 767px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            h3 { font-size: 1.3rem; }
            .content-section { padding: 0 1rem; }
            .article-hero img { max-height: 250px; }
        }