* {
            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: 1.8;
            font-size: 1.1rem;
            overflow-x: hidden;
        }
        a {
            color: #4361ee;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #3a0ca3;
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #7209b7, #4361ee);
            color: white;
            padding: 1rem 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;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .my-logo a {
            color: white;
            text-decoration: none;
        }
        .my-logo a:hover {
            color: #ffd166;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links li a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background 0.3s ease;
        }
        .nav-links li a:hover {
            background: rgba(255, 255, 255, 0.2);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 20px;
            font-size: 0.95rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: #555;
        }
        .breadcrumb a:hover {
            color: #4361ee;
        }
        main {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 2.5rem;
            padding: 2rem 0;
        }
        article {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        article h1 {
            font-size: 2.8rem;
            color: #3a0ca3;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            border-bottom: 4px solid #7209b7;
            padding-bottom: 0.5rem;
        }
        article h2 {
            font-size: 2.2rem;
            color: #4361ee;
            margin: 2.5rem 0 1.2rem;
            padding-left: 0.8rem;
            border-left: 5px solid #ffd166;
        }
        article h3 {
            font-size: 1.8rem;
            color: #7209b7;
            margin: 2rem 0 1rem;
        }
        article h4 {
            font-size: 1.5rem;
            color: #f72585;
            margin: 1.8rem 0 0.8rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        article strong {
            color: #f72585;
            font-weight: 800;
        }
        article em {
            color: #4cc9f0;
            font-style: italic;
        }
        .article-img {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border: 3px solid #4361ee;
        }
        .update-time {
            background: #ffd166;
            color: #333;
            padding: 1rem;
            border-radius: 8px;
            margin: 2rem 0;
            font-weight: bold;
            text-align: center;
            font-size: 1.1rem;
        }
        aside {
            background: white;
            padding: 1.8rem;
            border-radius: 15px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            color: #3a0ca3;
            font-size: 1.6rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffd166;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #555;
        }
        .form-control {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .form-control:focus {
            border-color: #4361ee;
            outline: none;
        }
        .btn {
            background: linear-gradient(to right, #4361ee, #3a0ca3);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(67, 97, 238, 0.4);
        }
        .comments-section {
            background: #f1faee;
            padding: 2rem;
            border-radius: 12px;
            margin-top: 3rem;
        }
        .comment {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            border-left: 5px solid #4cc9f0;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.95rem;
            color: #666;
        }
        footer {
            background: #212529;
            color: #e9ecef;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h3 {
            color: #ffd166;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #adb5bd;
        }
        .footer-links a:hover {
            color: #ffd166;
        }
        friend-link {
            display: inline-block;
            background: #343a40;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            margin-right: 1rem;
            margin-bottom: 1rem;
            border: 1px solid #495057;
        }
        friend-link a {
            color: #4cc9f0;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #495057;
            font-size: 0.95rem;
            color: #adb5bd;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                display: none;
                margin-top: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            article {
                padding: 1.8rem;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.9rem;
            }
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .highlight {
            background: linear-gradient(120deg, #ffd166 0%, #ffd166 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            padding: 0 0.2rem;
        }