* {
            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: #f8f9fa;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #007bff;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #0056b3;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 15px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: #ffcc00;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .nav-desktop ul {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            color: white;
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .nav-desktop a:hover {
            border-bottom-color: #ffcc00;
            color: #ffcc00;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: #1a237e;
            padding: 20px;
            flex-direction: column;
            gap: 15px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: white;
            font-weight: 600;
            padding: 10px;
            border-left: 4px solid transparent;
        }
        .nav-mobile a:hover {
            border-left-color: #ffcc00;
            background: rgba(255,255,255,0.1);
        }
        .breadcrumb {
            padding: 15px 0;
            background: #e9ecef;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: "›";
            margin-left: 10px;
            color: #6c757d;
        }
        main {
            padding: 30px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: white;
            padding: 25px;
            border-radius: 12px;
            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;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #ffcc00;
            color: #1a237e;
        }
        h1 {
            font-size: 2.8rem;
            color: #1a237e;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: #283593;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }
        h3 {
            font-size: 1.6rem;
            color: #3949ab;
            margin: 25px 0 12px;
        }
        h4 {
            font-size: 1.3rem;
            color: #5c6bc0;
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 18px;
            text-align: justify;
            font-size: 1.05rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: #555;
            background: #f8f9fa;
            padding: 15px;
            border-left: 4px solid #ffcc00;
            border-radius: 4px;
            margin-bottom: 25px;
        }
        .highlight {
            background: #fffde7;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #ffecb3;
            margin: 20px 0;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        strong {
            color: #1a237e;
        }
        .content-area a {
            color: #1a237e;
            border-bottom: 1px dotted #1a237e;
        }
        .content-area a:hover {
            border-bottom-style: solid;
        }
        .content-area ul,
        .content-area ol {
            margin-left: 20px;
            margin-bottom: 18px;
        }
        .content-area li {
            margin-bottom: 8px;
        }
        .article-img {
            margin: 25px auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            max-width: 800px;
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #666;
            padding: 10px;
            background: #f5f5f5;
        }
        .btn {
            display: inline-block;
            background: #ffcc00;
            color: #1a237e;
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
        }
        .btn:hover {
            background: #ffb300;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(255, 204, 0, 0.4);
            color: #1a237e;
        }
        .btn-block {
            display: block;
            width: 100%;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #1a237e;
            outline: none;
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .rating {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        .rating input {
            display: none;
        }
        .rating label {
            font-size: 1.5rem;
            color: #ccc;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating label:hover,
        .rating input:checked ~ label {
            color: #ffcc00;
        }
        footer {
            background: #1a237e;
            color: white;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-section h3 {
            color: #ffcc00;
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #3949ab;
        }
        .footer-links a {
            color: #bbdefb;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: #ffcc00;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #0d153a;
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
        }
        friend-link h3 {
            color: #ffcc00;
            margin-bottom: 15px;
        }
        friend-link ul {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        friend-link a {
            color: #bbdefb;
            background: rgba(255,255,255,0.05);
            padding: 8px 15px;
            border-radius: 4px;
        }
        friend-link a:hover {
            background: rgba(255,204,0,0.2);
            color: white;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #3949ab;
            color: #bbdefb;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .content-area,
            .sidebar {
                padding: 20px;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
            friend-link ul {
                flex-direction: column;
            }
        }