* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            font-size: 1.05rem;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        h1, h2, h3, h4 {
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-left: 6px solid #e74c3c;
            padding-left: 1rem;
            margin-top: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 2.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #3498db;
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2rem;
            color: #2980b9;
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 1.5rem;
            color: #16a085;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        strong {
            color: #2c3e50;
            font-weight: 700;
        }
        em {
            color: #7f8c8d;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a2980, #26d0ce);
            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;
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: 900;
            color: #f1c40f;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: 1px;
        }
        .my-logo a {
            color: inherit;
            text-decoration: none;
        }
        .my-logo:hover {
            transform: scale(1.03);
            transition: transform 0.3s;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 1.8rem;
        }
        nav ul li a {
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        nav ul li a:hover {
            background-color: rgba(255,255,255,0.2);
            text-decoration: none;
        }
        .breadcrumb {
            background-color: #ecf0f1;
            padding: 0.8rem 20px;
            font-size: 0.95rem;
            border-bottom: 1px solid #bdc3c7;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb span {
            color: #34495e;
        }
        main {
            flex: 1;
            padding: 2rem 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: fit-content;
        }
        .widget {
            margin-bottom: 2rem;
        }
        .widget h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #2c3e50;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #3498db;
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 0.75rem 1.8rem;
            background: linear-gradient(to right, #3498db, #2980b9);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        .btn:hover {
            background: linear-gradient(to right, #2980b9, #1c5a7a);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            text-decoration: none;
        }
        .btn-block {
            width: 100%;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .link-list {
            background: #f1f8ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 5px solid #3498db;
        }
        .link-list h3 {
            margin-top: 0;
        }
        .link-list ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
        }
        .link-list li a {
            display: block;
            padding: 0.8rem;
            background: white;
            border-radius: 5px;
            border: 1px solid #d1e7ff;
            transition: all 0.3s;
        }
        .link-list li a:hover {
            background: #e3f2fd;
            border-color: #3498db;
            transform: translateX(5px);
        }
        .update-info {
            background: #fff8e1;
            padding: 1rem;
            border-radius: 5px;
            margin: 2rem 0;
            font-size: 0.95rem;
            color: #5d4037;
            border-left: 4px solid #ffb300;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #f1c40f;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #bdc3c7;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #f1c40f;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #34495e;
            padding: 1rem;
            border-radius: 5px;
            margin-bottom: 1rem;
            text-align: center;
        }
        friend-link a {
            color: #f1c40f;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-top {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease-out;
            }
            nav.active {
                max-height: 500px;
            }
            nav ul {
                flex-direction: column;
                width: 100%;
                padding-top: 1rem;
            }
            nav ul li {
                margin: 0.5rem 0;
                margin-left: 0;
            }
            nav ul li a {
                display: block;
                padding: 0.8rem;
            }
            .article-content, .sidebar {
                padding: 1.5rem;
            }
        }