* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #2d3748;
            background-color: #f8f9fa;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        header {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1.2rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            transition: transform 0.3s ease;
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .my-logo i {
            margin-right: 10px;
            color: #fbbf24;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 2rem;
        }
        .nav-links a {
            color: #e2e8f0;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: #edf2f7;
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .breadcrumb a {
            color: #4a5568;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
            color: #2d3748;
        }
        main {
            padding: 2rem 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        article {
            background: white;
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
        }
        h1 {
            font-size: 2.8rem;
            color: #1a202c;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid #fbbf24;
            padding-bottom: 0.8rem;
        }
        h2 {
            font-size: 2rem;
            color: #2d3748;
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            font-size: 1.6rem;
            color: #4a5568;
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #718096;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: #4a5568;
            background-color: #f7fafc;
            padding: 1.5rem;
            border-left: 5px solid #4299e1;
            border-radius: 0 8px 8px 0;
            margin-bottom: 2.5rem;
        }
        strong {
            color: #2d3748;
            font-weight: 700;
        }
        em {
            color: #dd6b20;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(to right, #e6f7ff, #f0f9ff);
            border-left: 5px solid #1890ff;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
            margin: 2rem 0;
        }
        .image-container {
            margin: 2.5rem auto;
            text-align: center;
        }
        .image-container img {
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
            border: 1px solid #e2e8f0;
        }
        .image-caption {
            font-style: italic;
            color: #718096;
            margin-top: 0.8rem;
            font-size: 0.95rem;
        }
        ul, ol {
            margin: 1.5rem 0 1.5rem 2rem;
            padding-left: 1rem;
        }
        li {
            margin-bottom: 0.8rem;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-list a {
            background-color: #edf2f7;
            color: #2d3748;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        .link-list a:hover {
            background-color: #4299e1;
            color: white;
            border-color: #2b6cb0;
            transform: translateY(-3px);
        }
        aside {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h3 {
            font-size: 1.4rem;
            color: #2d3748;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e2e8f0;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .search-form input:focus {
            border-color: #4299e1;
        }
        .search-form button {
            background-color: #4299e1;
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: background-color 0.3s;
        }
        .search-form button:hover {
            background-color: #3182ce;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 2rem;
            color: #cbd5e0;
            margin-bottom: 1rem;
            cursor: pointer;
        }
        .stars span {
            transition: color 0.2s;
            margin: 0 2px;
        }
        .stars span:hover,
        .stars span.active {
            color: #fbbf24;
        }
        .comment-form textarea {
            width: 100%;
            height: 120px;
            padding: 1rem;
            border: 2px solid #cbd5e0;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            margin-bottom: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .comment-form textarea:focus {
            border-color: #4299e1;
        }
        .comment-form button {
            background-color: #38a169;
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            width: 100%;
            transition: background-color 0.3s;
        }
        .comment-form button:hover {
            background-color: #2f855a;
        }
        .update-time {
            font-size: 0.9rem;
            color: #718096;
            text-align: center;
            margin-top: 1rem;
        }
        footer {
            background-color: #1a202c;
            color: #cbd5e0;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section {
            flex: 1;
            min-width: 250px;
        }
        .footer-section h4 {
            color: #f7fafc;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #a0aec0;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #fbbf24;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: #fbbf24;
            font-weight: 600;
            text-decoration: none;
        }
        friend-link a:hover {
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 768px) {
            .header-content {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                margin-top: 1.5rem;
                background-color: #2a5298;
                border-radius: 8px;
                padding: 1rem;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-links li {
                margin: 0.5rem 0;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, aside {
                padding: 1.5rem;
            }
        }