body {
            font-family: 'Inter', sans-serif;
            line-height: 1.5;
            margin: 0;
            padding: 0;
            color: #333;
            background-color: #f9f9f9;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 去掉 a 标签下划线 */
        a {
            text-decoration: none;
            color: black;
        }

        /* 去掉 li 标签前的小圆点 */
        li {
            list-style-type: none;
            margin-bottom: 10px; /* 增加li元素的行间距 */
        }

        /* 页眉样式 */
        header {
            background-color: #06c;
            color: white;
            padding: 20px 0;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            color: white;
            text-decoration: none;
            font-size: 24px;
            font-weight: bold;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }

        .hamburger div {
            width: 25px;
            height: 3px;
            background-color: white;
            margin: 3px 0;
            transition: all 0.3s ease;
        }

        .nav-links {
            display: flex;
            list-style-type: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin-left: 20px;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: #e0e0e0;
        }

        /* 为导航第三个元素设置背景块 */
        .nav-links li:nth-child(3) a {
            background-color: white;
            color: #06c;
            padding: 5px 10px;
            border-radius: 5px;
        }

        /* 主要内容区样式 */
        .main-content {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .article-container {
            flex: 3;
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }

        /* 标题和作者信息居中 */
        .article-container h1,
        .article-meta {
            text-align: center;
        }

        .article-meta {
            color: #777;
            margin-bottom: 10px;
        }

        /* 在 article-meta 和 article-content 之间添加分割线 */
        .article-meta::after {
            content: "";
            display: block;
            height: 1px;
            background-color: #ccc;
            margin-top: 15px;
            margin-bottom: 15px;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        /* 为文章内容正文添加左侧边距 */
        .article-content {
            padding-left: 20px;
        }

        /* h2 标题居中 */
        .article-content h2 {
            color: #06c;
        }

        /* 内容 p 增加行间距 */
        .article-content p {
            line-height: 35px;
        }

        .sidebar {
            flex: 1;
        }

        .widget {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            margin-bottom: 20px;
        }

        /* 为相关文章和标签云的标题添加蓝色背景和白色文字 */
        .widget h3 {
            margin-top: 0;
            color: white;
            background-color: #06c;
            padding: 5px 10px;
            border-radius: 5px;
        }

        .no-bullets {
            list-style-type: none;
            padding: 0;
        }

        /* 新增两列标题列表样式 */
        .two-column-list {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .column {
            flex: 1;
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }

        /* 为标题一和标题二添加蓝色背景，文字颜色改为白色 */
        .column h3 {
            margin-top: 0;
            color: white;
            background-color: #06c;
            padding: 5px 10px;
            border-radius: 5px;
        }

        /* 页脚样式 */
        footer {
            background-color: #06c;
            color: white;
            text-align: center;
            padding: 20px 0;
            margin-top: 30px;
        }

        .footer-text {
            margin: 5px 0;
        }

        .copyright {
            color: #ccc;
            margin-top: 10px;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: #06c;
                text-align: center;
            }

            .nav-links.active {
                display: flex;
            }

            .nav-links li {
                margin: 10px 0;
            }

            .main-content {
                flex-direction: column;
            }

            .two-column-list {
                flex-direction: column;
            }

            /* 手机端导航第三个元素背景块设置为白色，文字设置为蓝色 */
            .nav-links li:nth-child(3) a {
                background-color: white;
                color: #06c;
            }
        }