* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: #2c5aa0;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #e63946;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .site-header {
            background: #1a365d;
            color: white;
            padding: 1rem 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: 1.8rem;
            font-weight: 800;
            color: #ffd166;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            font-size: 2rem;
        }
        .my-logo:hover {
            color: white;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e2e8f0;
            font-weight: 600;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #ffd166;
            border-bottom-color: #ffd166;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #edf2f7;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #4a5568;
        }
        .breadcrumb a:hover {
            color: #2c5aa0;
        }
        .breadcrumb span {
            color: #718096;
            margin: 0 5px;
        }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #cbd5e0;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-input:focus {
            border-color: #2c5aa0;
        }
        .search-btn {
            background: #2c5aa0;
            color: white;
            border: none;
            border-radius: 0 50px 50px 0;
            padding: 0 1.8rem;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #e63946;
        }
        .main-content {
            flex: 1;
            padding: 2rem 0;
        }
        .article-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: #1a365d;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #718096;
            font-size: 0.95rem;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .content-area {
                grid-template-columns: 1fr;
            }
        }
        .article-body {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
        }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .article-body h2 {
            color: #2c5aa0;
            font-size: 2rem;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #ffd166;
        }
        .article-body h3 {
            color: #1a365d;
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            color: #4a5568;
            font-size: 1.3rem;
            margin: 1.8rem 0 0.8rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .article-body strong {
            color: #1a365d;
            font-weight: 700;
        }
        .article-body em {
            color: #e63946;
            font-style: italic;
        }
        .highlight-box {
            background: #f0f9ff;
            border-left: 5px solid #2c5aa0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #e8f4fd;
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            transition: transform 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .stat-card h4 {
            color: #2c5aa0;
            margin-bottom: 0.5rem;
        }
        .stat-card p {
            font-size: 2.5rem;
            font-weight: 800;
            color: #e63946;
            margin-bottom: 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .link-list {
            background: #f7fafc;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .link-list ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .link-list a {
            background: white;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            box-shadow: 0 3px 6px rgba(0,0,0,0.08);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
        }
        .link-list a:hover {
            background: #2c5aa0;
            color: white;
            transform: scale(1.05);
        }
        .rating-section,
        .comments-section {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            margin-top: 3rem;
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            max-width: 600px;
            margin-top: 1.5rem;
        }
        .star-rating {
            direction: rtl;
            display: inline-block;
            font-size: 2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #cbd5e0;
            cursor: pointer;
            padding: 0 2px;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #ffc107;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-group label {
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: #4a5568;
        }
        .form-control {
            padding: 0.9rem 1rem;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            border-color: #2c5aa0;
            outline: none;
            box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
        }
        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background: #2c5aa0;
            color: white;
            border: none;
            border-radius: 8px;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            align-self: flex-start;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background: #e63946;
        }
        .site-footer {
            background: #1a365d;
            color: #e2e8f0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: #ffd166;
            margin-bottom: 1.5rem;
            font-size: 1.4rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #cbd5e0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #ffd166;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 1.5rem;
            border-radius: 8px;
            margin-top: 1rem;
        }
        friend-link a {
            color: #ffd166;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active {
                max-height: 300px;
                margin-top: 1rem;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                border-bottom: 1px solid #2d3748;
            }
            .main-nav a {
                display: block;
                padding: 0.8rem 0;
            }
            .article-header h1 {
                font-size: 2.2rem;
            }
            .article-body,
            .sidebar,
            .rating-section,
            .comments-section {
                padding: 1.8rem;
            }
            .content-area {
                gap: 2rem;
            }
        }