.gbt-container {
    width: 640px;
    margin: auto;
}
.gbt-container .header-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 14px;
}
.gbt-container .table-title {
    border: 0px;
    background: #fff;
}
.gbt-container .table-title h2 {
    text-align: center;
    font-weight: bold;
    margin: 10px 0;
    font-size: 16px;
}
.gbt-container .table-title span {
    float: right;
    font-weight:normal;
    font-size: 14px;
}
.gbt-container table {
    width: 100%;
    border-collapse: collapse;
    text-align: center;
    font-size: 14px;
    margin-bottom: 20px;
}
.gbt-container th, td {
    border: 1px solid #ddd;
    padding: 5px;
}
.gbt-container table thead tr {
    background: #efefef;
}
.gbt-container table tbody tr:nth-child(2n) {
    background: #f7f7f7;
}
.gbt-container table tbody tr:hover {
    background: #eff3f5;
}
/* 表头固定 */
.gbt-container table thead/* tr > th */{
    position: sticky;
    top: 0;
    z-index: 2;
    background: #eff3f5;
}