/* 给整个表格加边框和样式 */
table {
    width: 100%;
    border-collapse: collapse; /* 合并边框 */
    border: 1px solid #e5e7eb;   /* 外边框 */
    font-family: Arial, sans-serif;
    font-size: 14px;
}

/* 表头样式 */
#tech_index .firstRow {
    background-color: #f2f2f2; /* 表头底色 */
    font-weight: bold;         /* 加粗 */
    border: 1px solid #e5e7eb;    /* 表头边框 */
    padding: 8px;
    text-align: center;
}

/* 表格内容样式 */
table td {
    border: 1px solid #e5e7eb; /* 内部单元格边框 */
    padding: 8px;
    text-align: center;
}

/* 第一列样式，不换行 */
table td:first-child,
table th:first-child {
    word-break: auto-phrase;
}

table:nth-of-type(1) th:first-child,
table:nth-of-type(1) td:first-child,
table:nth-of-type(2) th:first-child,
table:nth-of-type(2) td:first-child,
table:nth-of-type(3) th:first-child,
table:nth-of-type(3) td:first-child {
    background-color: #f2f2f2;
    font-weight: bold;
    word-break: auto-phrase;
}

/* 针对第三个表格，第一行作为表头 */
table:nth-of-type(3) th {
    background-color: #f2f2f2;
    font-weight: bold;
}

.he_dx2b {
    padding-top: 0 !important;
    padding-bottom: 64px  !important;
}