pre {
    background-color: #282c34;
    border: none;
    border-radius: 6px;
    padding: 45px 20px 20px 20px; /* 增加顶部内边距，为内部标签留空间 */
    margin: 20px 0;
    overflow: auto;
    position: relative;
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
    line-height: 1.6;
    max-height: 600px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

pre code {
    background-color: transparent !important;
    color: #abb2bf;
    font-size: 15px;
    padding: 0 !important;
    border: none !important;
    display: block;
    tab-size: 4;
    -moz-tab-size: 4;
}

/* 内部标签 */
pre:before {
    content: "终端命令";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background-color: #3a3f4b; /* 稍微浅一点的背景色 */
    color: #61afef;
    padding: 8px 15px;
    font-size: 14px;
    font-weight: bold;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    border-bottom: 1px solid #1e2127;
}

/* 添加终端风格的圆点 */
pre:after {
    content: "";
    position: absolute;
    top: 12px;
    right: 15px;
    width: 12px;
    height: 12px;
    background-color: #98c379; /* 绿色 */
    border-radius: 50%;
    box-shadow: -20px 0 0 #e5c07b, /* 黄色 */
                -40px 0 0 #e06c75; /* 红色 */
}

/* 代码高亮效果 */
pre code .keyword { color: #c678dd; }
pre code .string { color: #98c379; }
pre code .comment { color: #5c6370; font-style: italic; }
pre code .number { color: #d19a66; }
pre code .function { color: #61afef; }
pre code .operator { color: #56b6c2; }
code { color: #f00 }