* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            font-size: 1.05rem;
        }
        a {
            text-decoration: none;
            color: #2563eb;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #1d4ed8;
            text-decoration: underline;
        }
        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, #1e3a8a 0%, #2563eb 100%);
            color: white;
            padding: 1.2rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #fbbf24;
        }
        .my-logo span {
            background: linear-gradient(90deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: #e0f2fe;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: #e0f2fe;
            padding: 0.8rem 0;
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #1e40af;
        }
        .breadcrumb span {
            color: #64748b;
            margin: 0 8px;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .content-area {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: #1e3a8a;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 0.7rem;
        }
        h2 {
            font-size: 2.1rem;
            color: #2563eb;
            margin: 2.5rem 0 1.2rem;
            padding-top: 1rem;
        }
        h3 {
            font-size: 1.7rem;
            color: #3b82f6;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #60a5fa;
            margin: 1.8rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            color: #475569;
            font-weight: 500;
            margin-bottom: 2rem;
            padding: 1rem;
            background-color: #f0f9ff;
            border-left: 5px solid #2563eb;
            border-radius: 0 8px 8px 0;
        }
        .highlight {
            background-color: #fef3c7;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid #f59e0b;
            margin: 2rem 0;
        }
        .highlight p:last-child {
            margin-bottom: 0;
        }
        blockquote {
            font-style: italic;
            color: #4b5563;
            border-left: 4px solid #94a3b8;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        ul, ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.7rem;
        }
        .related-links {
            background-color: #f8fafc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .related-links h3 {
            margin-top: 0;
            color: #1e40af;
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 0.8rem;
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            background: white;
            padding: 0.8rem 1rem;
            border-radius: 6px;
            border: 1px solid #e2e8f0;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .related-links li:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(30, 64, 175, 0.1);
        }
        .form-section {
            background: #f8fafc;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid #e2e8f0;
        }
        .form-section h2 {
            margin-top: 0;
            color: #1e3a8a;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #374151;
        }
        input, textarea, select {
            width: 100%;
            padding: 0.85rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s, box-shadow 0.3s;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }
        button, .btn {
            background: linear-gradient(to right, #2563eb, #1d4ed8);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            font-size: 1.05rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
        }
        button:hover, .btn:hover {
            background: linear-gradient(to right, #1d4ed8, #1e40af);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(29, 78, 216, 0.25);
            text-decoration: none;
        }
        .rating {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating i {
            color: #d1d5db;
            cursor: pointer;
            font-size: 1.8rem;
            transition: color 0.2s;
        }
        .rating i:hover,
        .rating i.active {
            color: #fbbf24;
        }
        .article-img {
            margin: 2.5rem auto;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            max-width: 800px;
        }
        .article-img figcaption {
            text-align: center;
            font-style: italic;
            color: #6b7280;
            padding: 0.8rem;
            background-color: #f9fafb;
            font-size: 0.95rem;
        }
        footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h3 {
            color: #fbbf24;
            font-size: 1.4rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #cbd5e1;
        }
        .footer-links a:hover {
            color: #60a5fa;
            padding-left: 5px;
            display: inline-block;
        }
        friend-link {
            display: block;
            background: #374151;
            padding: 1.2rem;
            border-radius: 8px;
            margin-top: 1rem;
            border-left: 4px solid #fbbf24;
        }
        friend-link a {
            color: #fbbf24;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #374151;
            font-size: 0.95rem;
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                background-color: #1e3a8a;
                padding: 1.5rem;
                border-radius: 10px;
                margin-top: 1rem;
                display: none;
            }
            .nav-links.active {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .content-area, .sidebar {
                padding: 1.5rem;
            }
            .lead {
                font-size: 1.15rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #6b7280;
            text-align: right;
            margin-bottom: 2rem;
            font-style: italic;
        }