* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.8;
            font-size: 1.1rem;
            padding-top: 80px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 10px;
        }
        .site-header {
            background: #2c3e50;
            color: #ecf0f1;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f39c12;
            text-decoration: none;
            letter-spacing: -1px;
            transition: color 0.3s ease;
        }
        .my-logo:hover {
            color: #e74c3c;
            text-shadow: 0 0 8px rgba(243, 156, 18, 0.5);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #bdc3c7;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 8px 12px;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #f39c12;
            background: rgba(255,255,255,0.05);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #ecf0f1;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #34495e;
            padding: 12px 20px;
            font-size: 0.95rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #f39c12;
            text-decoration: none;
        }
        .breadcrumb span {
            color: #bdc3c7;
            margin: 0 8px;
        }
        .search-container {
            max-width: 1200px;
            margin: 30px auto 20px;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1.1rem;
            background: #fff;
        }
        .search-btn {
            background: #2980b9;
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-size: 1.2rem;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #1f639b;
        }
        .main-container {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        article {
            background: white;
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        article h1 {
            color: #2c3e50;
            font-size: 2.8rem;
            margin-bottom: 25px;
            line-height: 1.2;
            border-bottom: 3px solid #f39c12;
            padding-bottom: 15px;
        }
        article h2 {
            color: #2980b9;
            font-size: 2.2rem;
            margin: 45px 0 20px;
            padding-top: 10px;
        }
        article h3 {
            color: #16a085;
            font-size: 1.7rem;
            margin: 35px 0 15px;
        }
        article h4 {
            color: #8e44ad;
            font-size: 1.4rem;
            margin: 25px 0 10px;
        }
        article p {
            margin-bottom: 22px;
            text-align: justify;
            font-size: 1.15rem;
        }
        article strong {
            color: #c0392b;
            font-weight: 700;
        }
        article em {
            color: #27ae60;
            font-style: italic;
        }
        .highlight-box {
            background: #f8f9fa;
            border-left: 5px solid #f39c12;
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 10px 10px 0;
        }
        .image-container {
            margin: 40px auto;
            text-align: center;
        }
        .image-container img {
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: #7f8c8d;
            margin-top: 10px;
            font-size: 1rem;
        }
        .content-link {
            color: #2980b9;
            text-decoration: none;
            border-bottom: 1px dotted #2980b9;
            transition: color 0.3s;
        }
        .content-link:hover {
            color: #e74c3c;
            border-bottom-style: solid;
        }
        .last-updated {
            text-align: right;
            font-size: 0.95rem;
            color: #95a5a6;
            margin-top: 50px;
            padding-top: 15px;
            border-top: 1px dashed #ddd;
        }
        aside {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        aside h3 {
            color: #2c3e50;
            border-bottom: 2px solid #f39c12;
            padding-bottom: 10px;
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        .related-links a {
            color: #2c3e50;
            text-decoration: none;
            display: block;
            padding: 8px 5px;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .related-links a:hover {
            background: #f1f8ff;
            padding-left: 12px;
            color: #2980b9;
        }
        .rating-widget {
            text-align: center;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 10px;
            margin-top: 30px;
        }
        .stars {
            font-size: 2rem;
            color: #f1c40f;
            margin: 15px 0;
            cursor: pointer;
        }
        .stars span {
            transition: color 0.2s;
        }
        .stars span:hover,
        .stars span.active {
            color: #f39c12;
        }
        .comment-section {
            margin-top: 60px;
            background: white;
            padding: 35px;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }
        .comment-section h2 {
            color: #2c3e50;
        }
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 25px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 8px;
            font-weight: 600;
            color: #34495e;
        }
        .form-group input,
        .form-group textarea {
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #2980b9;
            outline: none;
            box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.2);
        }
        .submit-btn {
            background: #27ae60;
            color: white;
            border: none;
            padding: 18px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            align-self: flex-start;
            min-width: 180px;
        }
        .submit-btn:hover {
            background: #219653;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 50px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            color: #f39c12;
            margin-bottom: 20px;
        }
        .footer-links h4 {
            color: #f39c12;
            margin-bottom: 20px;
            font-size: 1.3rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #f39c12;
        }
        friend-link {
            display: block;
            padding: 10px;
            background: rgba(255,255,255,0.05);
            margin-bottom: 10px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
        }
        friend-link a {
            color: #f39c12 !important;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .main-container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 70px;
                font-size: 1rem;
            }
            .header-container {
                height: 70px;
                padding: 0 15px;
            }
            .main-nav ul {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                flex-direction: column;
                background: #2c3e50;
                padding: 20px;
                transition: left 0.5s ease;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            }
            .main-nav.active ul {
                left: 0;
            }
            .main-nav a {
                display: block;
                padding: 15px;
                border-bottom: 1px solid #34495e;
            }
            .hamburger {
                display: block;
            }
            article {
                padding: 25px;
            }
            article h1 {
                font-size: 2.2rem;
            }
            article h2 {
                font-size: 1.8rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: 0;
                padding: 15px;
            }
        }