* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
        }
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: #333;
            color: #fff;
            padding: 15px 0;
            margin-bottom: 20px;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 24px;
            font-weight: bold;
        }
        nav ul {
            display: flex;
            list-style: none;
        }
        nav ul li {
            margin-left: 20px;
        }
        nav ul li a {
            color: #fff;
            text-decoration: none;
        }
        .main-content {
            display: flex;
            justify-content: space-between;
        }
        .article-container {
            width: 75%;
            background-color: #fff;
            padding: 25px;
            border-radius: 5px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        .sidebar {
            width: 23%;
        }
        .article-header {
            margin-bottom: 20px;
            border-bottom: 1px solid #eee;
            padding-bottom: 20px;
        }
        .article-title {
            font-size: 26px;
            margin-bottom: 15px;
            line-height: 1.3;
        }
        .article-meta {
            color: #999;
            font-size: 14px;
            margin-bottom: 15px;
        }
        .article-meta span {
            margin-right: 15px;
        }
        .article-content {
            margin-bottom: 30px;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
            line-height: 1.8;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            margin: 20px 0;
            display: block;
        }
        .article-tags {
            margin-bottom: 20px;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }
        .article-tags span {
            color: #999;
            margin-right: 10px;
        }
        .article-tags a {
            display: inline-block;
            background-color: #f5f5f5;
            color: #666;
            text-decoration: none;
            padding: 5px 10px;
            border-radius: 3px;
            margin-right: 10px;
            margin-bottom: 10px;
        }
        .article-tags a:hover {
            background-color: #e63946;
            color: #fff;
        }
        .related-articles {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        .related-articles h3 {
            margin-bottom: 15px;
            font-size: 18px;
        }
        .related-articles ul {
            list-style: none;
        }
        .related-articles li {
            margin-bottom: 10px;
            padding-left: 15px;
            position: relative;
        }
        .related-articles li::before {
            content: "•";
            color: #e63946;
            position: absolute;
            left: 0;
        }
        .related-articles a {
            color: #333;
            text-decoration: none;
        }
        .related-articles a:hover {
            color: #e63946;
        }
        .comment-section {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }
        .comment-section h3 {
            margin-bottom: 15px;
            font-size: 18px;
        }
        .comment-form {
            margin-bottom: 20px;
        }
        .comment-form textarea {
            width: 100%;
            height: 120px;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            margin-bottom: 10px;
            resize: vertical;
        }
        .comment-form button {
            background-color: #e63946;
            color: #fff;
            border: none;
            padding: 8px 15px;
            border-radius: 3px;
            cursor: pointer;
        }
        .comment-form button:hover {
            background-color: #c1121f;
        }
        .popular-news {
            background-color: #fff;
            padding: 15px;
            border-radius: 5px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            margin-bottom: 20px;
        }
        .popular-news h3 {
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
            font-size: 16px;
        }
        .popular-news ul {
            list-style: none;
        }
        .popular-news li {
            margin-bottom: 10px;
            padding-left: 15px;
            position: relative;
        }
        .popular-news li::before {
            content: "•";
            color: #e63946;
            position: absolute;
            left: 0;
        }
        .popular-news a {
            color: #333;
            text-decoration: none;
            font-size: 14px;
        }
        .popular-news a:hover {
            color: #e63946;
        }
        footer {
            background-color: #333;
            color: #fff;
            padding: 20px 0;
            margin-top: 30px;
        }
        .footer-content {
            display: flex;
            flex-direction: column;
        }
        .friend-links h3 {
            margin-bottom: 15px;
            font-size: 16px;
        }
        .friend-links ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
        }
        .friend-links li {
            margin-right: 20px;
            margin-bottom: 10px;
        }
        .friend-links a {
            color: #ccc;
            text-decoration: none;
        }
        .friend-links a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 14px;
            color: #ccc;
        }
        @media (max-width: 768px) {
            .main-content {
                flex-direction: column;
            }
            .article-container,
            .sidebar {
                width: 100%;
                margin-bottom: 20px;
            }
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            nav ul {
                margin-top: 15px;
                flex-wrap: wrap;
            }
            nav ul li {
                margin: 5px 15px 5px 0;
            }
            .article-title {
                font-size: 22px;
            }
        }