.breadcrumb {
    list-style: none;
    display: flex;
    gap: 1.7em;
    padding: 0px;
    margin: 0px;
}
.breadcrumb li::before {
    content: "";
    margin-right: -1.3em;
}
.breadcrumb li::after {
    content: ">";
    margin-left: 0.5em;
}

.breadcrumb li:last-child::after {
    content: "";          /* 最后一个不显示分隔符 */
}