* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #c53030;
            --accent-color: #f6ad55;
            --light-bg: #f7fafc;
            --dark-text: #2d3748;
            --light-text: #718096;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }
        body {
            background-color: #fff;
            color: var(--dark-text);
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #2a4365);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            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: 700;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--accent-color);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 1rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            margin-right: 0.5rem;
            display: flex;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--light-text);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin-left: 0.5rem;
            color: var(--light-text);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            color: var(--secondary-color);
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            color: var(--dark-text);
            font-size: 1.2rem;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .highlight {
            background-color: #fffaf0;
            border-left: 4px solid var(--accent-color);
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .info-box {
            background-color: #ebf8ff;
            border: 1px solid #bee3f8;
            padding: 1.2rem;
            border-radius: 6px;
            margin: 1.5rem 0;
        }
        .keyword {
            font-weight: 700;
            color: var(--secondary-color);
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        .widget {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            font-size: 1.2rem;
            margin-top: 0;
            color: var(--primary-color);
        }
        .search-form {
            display: flex;
            margin-top: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px 0 0 4px;
            outline: none;
        }
        .search-btn {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 1.2rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background-color: #9b2c2c;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.5rem;
            color: #f6ad55;
            margin: 0.8rem 0;
        }
        .stars i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            margin-top: 0.8rem;
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            margin-top: 0.8rem;
            width: 100%;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            background-color: #2c5282;
        }
        .article-image {
            width: 100%;
            max-height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--light-text);
            margin-top: -1rem;
            margin-bottom: 1.5rem;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem;
            text-align: left;
        }
        .comparison-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-table tr:nth-child(even) {
            background-color: var(--light-bg);
        }
        .comparison-table tr:hover {
            background-color: #edf2f7;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            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: white;
            font-size: 1.2rem;
            margin-bottom: 1.2rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
        }
        .footer-links a:hover {
            color: white;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            border-radius: 4px;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--accent-color);
            font-weight: 500;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .update-time {
            background-color: #f0fff4;
            color: #276749;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            aside {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--primary-color);
                flex-direction: column;
                padding: 1.5rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease;
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
        }
        .tab-container {
            margin: 2rem 0;
        }
        .tabs {
            display: flex;
            border-bottom: 2px solid var(--border-color);
            overflow-x: auto;
        }
        .tab-btn {
            padding: 0.8rem 1.5rem;
            background: none;
            border: none;
            font-weight: 600;
            color: var(--light-text);
            cursor: pointer;
            white-space: nowrap;
            transition: all 0.3s;
        }
        .tab-btn.active {
            color: var(--secondary-color);
            border-bottom: 3px solid var(--secondary-color);
        }
        .tab-content {
            padding: 1.5rem 0;
            display: none;
        }
        .tab-content.active {
            display: block;
            animation: fadeIn 0.5s;
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        .accordion {
            margin: 1.5rem 0;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            overflow: hidden;
        }
        .accordion-header {
            padding: 1.2rem;
            background-color: var(--light-bg);
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .accordion-header:hover {
            background-color: #edf2f7;
        }
        .accordion-content {
            padding: 0 1.2rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion.active .accordion-content {
            padding: 1.2rem;
            max-height: 500px;
        }