* {
            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;
            max-width: 100%;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: #0056b3;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #003d82;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            padding-left: 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0d3e66 0%, #1a6ca0 100%);
            color: white;
            padding: 1rem 2rem;
            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;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            letter-spacing: -0.5px;
        }
        .logo span {
            color: #4dc0ff;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e6f2ff;
            font-weight: 600;
            padding: 0.5rem 0.75rem;
            border-radius: 4px;
            font-size: 1.05rem;
        }
        .main-nav a:hover {
            background-color: rgba(255,255,255,0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        @media (max-width: 992px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #0d3e66;
                padding: 1rem 2rem;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
                display: none;
            }
            .main-nav.active ul {
                display: flex;
            }
        }
        .breadcrumb {
            background-color: #e9ecef;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ced4da;
        }
        .breadcrumb a {
            color: #6c757d;
        }
        .breadcrumb a:hover {
            color: #0056b3;
        }
        .breadcrumb i {
            margin: 0 0.5rem;
            color: #999;
        }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        @media (max-width: 768px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .article-header {
            margin-bottom: 2.5rem;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 1.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: #0d3e66;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #6c757d;
            font-size: 0.95rem;
            display: flex;
            gap: 1.5rem;
            margin-bottom: 1rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
        }
        h2, h3 {
            color: #1a6ca0;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed #d0e6f7;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.6rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #f0f9ff, #e6f4ff);
            border-left: 5px solid #1a6ca0;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
            font-weight: 600;
            color: #0d3e66;
        }
        .featured-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }
        .image-caption {
            font-size: 0.95rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        blockquote {
            font-style: italic;
            color: #555;
            border-left: 4px solid #4dc0ff;
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .internal-link {
            background-color: #f8f9fa;
            padding: 0.3rem 0.6rem;
            border-radius: 4px;
            border: 1px dashed #adb5bd;
            font-weight: 500;
        }
        .internal-link:hover {
            background-color: #e9ecef;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: 12px;
            padding: 1.8rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .sidebar-title {
            font-size: 1.4rem;
            color: #0d3e66;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #4dc0ff;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ced4da;
            border-right: none;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background: #1a6ca0;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #0d3e66;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #ffc107;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i {
            margin: 0 0.1rem;
            transition: transform 0.2s;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form {
            display: none;
            margin-top: 1rem;
        }
        .rating-form.active {
            display: block;
        }
        .rating-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .rating-form button {
            background: #28a745;
            color: white;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
        }
        .rating-form button:hover {
            background: #218838;
        }
        .comment-list {
            max-height: 400px;
            overflow-y: auto;
            margin-bottom: 1.5rem;
        }
        .comment {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
        }
        .comment:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: bold;
            color: #1a6ca0;
        }
        .comment-date {
            font-size: 0.85rem;
            color: #6c757d;
        }
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            margin-bottom: 1rem;
            border: 1px solid #ced4da;
            border-radius: 6px;
            font-size: 1rem;
        }
        .comment-form button {
            background: #1a6ca0;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
        }
        .comment-form button:hover {
            background: #0d3e66;
        }
        .site-footer {
            background: #0d3e66;
            color: #e6f2ff;
            padding: 3rem 2rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-logo a {
            color: white;
        }
        .footer-logo span {
            color: #4dc0ff;
        }
        .footer-section h3 {
            color: #4dc0ff;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            border-bottom: none;
            padding-bottom: 0;
        }
        .friend-links {
            list-style: none;
            padding-left: 0;
        }
        .friend-links li {
            margin-bottom: 0.8rem;
        }
        .friend-links a {
            color: #b3d9ff;
            display: flex;
            align-items: center;
        }
        .friend-links a:hover {
            color: white;
            padding-left: 5px;
            transition: all 0.3s;
        }
        .friend-links i {
            margin-right: 0.7rem;
            color: #4dc0ff;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #1a6ca0;
            color: #a3c6e9;
            font-size: 0.9rem;
        }
        .text-bold {
            font-weight: 700;
            color: #0d3e66;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .tag {
            display: inline-block;
            background: #e9ecef;
            color: #495057;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            font-size: 0.85rem;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }