* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f8f9fa;
            padding-top: 70px;
        }
        a {
            text-decoration: none;
            color: #2a7de1;
            transition: color 0.3s;
        }
        a:hover {
            color: #1a5fb4;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1c3a5f 0%, #0d1b2a 100%);
            color: white;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffcc00;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
        }
        .logo i {
            margin-right: 10px;
            color: #ff3333;
        }
        .nav-menu {
            display: flex;
            gap: 25px;
        }
        .nav-menu a {
            color: #e0e0e0;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
        }
        .nav-menu a:hover {
            color: #ffcc00;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: #ffcc00;
            transition: width 0.3s ease;
        }
        .nav-menu a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: white;
            border-radius: 2px;
            transition: 0.3s;
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 12px 20px;
            border-bottom: 1px solid #ddd;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #2a7de1;
        }
        .breadcrumb span {
            color: #888;
            margin: 0 5px;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 30px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article-section {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        h1 {
            font-size: 2.5rem;
            color: #1c3a5f;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h2 {
            font-size: 1.8rem;
            color: #2a7de1;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eaeaea;
        }
        h3 {
            font-size: 1.4rem;
            color: #333;
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 18px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 5px solid #ffcc00;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .tip {
            background-color: #e8f4fd;
            border-left: 5px solid #2a7de1;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .warning {
            background-color: #ffeaea;
            border-left: 5px solid #ff3333;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 10px;
            margin: 25px auto;
            display: block;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .search-box {
            background: linear-gradient(135deg, #2a7de1, #1a5fb4);
            padding: 25px;
            border-radius: 12px;
            color: white;
            margin-bottom: 30px;
        }
        .search-box h3 {
            color: white;
            margin-top: 0;
        }
        .search-form {
            display: flex;
            margin-top: 15px;
        }
        .search-input {
            flex: 1;
            padding: 14px;
            border: none;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-button {
            background-color: #ffcc00;
            color: #333;
            border: none;
            padding: 0 22px;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .search-button:hover {
            background-color: #ffd633;
        }
        .interaction-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 2px solid #eee;
        }
        .rating-widget, .comment-widget {
            background-color: #f9f9f9;
            padding: 25px;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        .rating-stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .rating-stars i {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #ffcc00;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            margin-top: 15px;
            resize: vertical;
            min-height: 120px;
        }
        .submit-button {
            background-color: #2a7de1;
            color: white;
            border: none;
            padding: 14px 28px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            margin-top: 15px;
            transition: background-color 0.3s;
        }
        .submit-button:hover {
            background-color: #1a5fb4;
        }
        .sidebar {
            background-color: white;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            align-self: start;
        }
        .sidebar-widget {
            margin-bottom: 30px;
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            color: #1c3a5f;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #ffcc00;
        }
        .sidebar ul li {
            padding: 10px 0;
            border-bottom: 1px dotted #eee;
        }
        .sidebar ul li:last-child {
            border-bottom: none;
        }
        .footer-links {
            background-color: #1c3a5f;
            padding: 40px 20px;
            margin-top: 40px;
        }
        .web-link {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            margin: 8px;
            padding: 12px 20px;
            border-radius: 6px;
            color: #e0e0e0;
            transition: all 0.3s;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.2);
            color: white;
            transform: translateY(-3px);
        }
        .copyright {
            background-color: #0d1b2a;
            color: #aaa;
            text-align: center;
            padding: 25px;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            body {
                padding-top: 60px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-container {
                padding: 12px 15px;
            }
            .nav-menu {
                position: fixed;
                top: 60px;
                left: -100%;
                flex-direction: column;
                background-color: #1c3a5f;
                width: 100%;
                text-align: center;
                padding: 20px 0;
                gap: 0;
                transition: left 0.5s ease;
                box-shadow: 0 10px 15px rgba(0,0,0,0.2);
            }
            .nav-menu.active {
                left: 0;
            }
            .nav-menu li {
                margin: 15px 0;
            }
            .hamburger {
                display: flex;
            }
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            .article-section {
                padding: 20px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: 8px;
                margin-bottom: 10px;
            }
            .search-button {
                border-radius: 8px;
                padding: 14px;
            }
        }
        @media print {
            .site-header, .sidebar, .search-box, .interaction-section, .footer-links {
                display: none;
            }
            body {
                padding-top: 0;
                background: white;
                color: black;
            }
            .article-section {
                box-shadow: none;
                padding: 0;
            }
            a {
                color: black;
                text-decoration: underline;
            }
        }