.hf-head-c {
    top: 260px;
    width: 260px;
    min-width: 260px;
    position: fixed;
    z-index: 99;
    /* display: none; */
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    left: 50px;
    text-align: left;
}
.hf-head-c.fixed-top {
    position: fixed;
    top: 64px;
}
.hf-head-c * {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}
@media (max-width: 1680px){
    .hf-head-c {
        display: none;
    }
}
.hf-head-nav {
    margin: 0px;
    position: relative;
    padding: 0;
    max-height: 70vh;
}
.hf-head-nav > p {
    margin: 0;
    padding: 0;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}
.hf-head-list {
    list-style: none outside none;
    margin: 0;
    padding: 0;
    word-wrap: break-word;
    word-break: break-all;
    position: relative;
}
.hf-head-list > .item {
    color: rgba(0, 0, 0, 0.65);
    line-height: 24px;
    display: block;
    margin-bottom: 0;
    /* text-overflow: ellipsis;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical; */
    cursor: pointer;
    position: relative;
    margin: 10px 0;
    font-size: clamp(12px, 1vw, 14px);
    width: 100%;
}
.hf-head-list > .item.active {
    color: #166BC7;
    font-weight: 700;
}
.hf-head-list > .item[data-lv="0"] {
    /* padding-left: 20px; */
    margin-top: 8px !important;
}

.hf-head-list > .item:not([data-lv="0"]) {
    margin: 6px 0;
    font-size: clamp(12px, 1vw, 12px);
    margin-top: -2px;
}
.hf-head-list > .item[data-lv="0"] + [data-lv="1"] {
    margin-top: -2px;
}
.hf-head-list > .item[data-lv="1"] {
    padding-left: 14px;
}
.hf-head-list > .item[data-lv="2"] {
    padding-left: 28px;
}
.hf-head-list > .item[data-lv="3"] {
    padding-left: 32px;
}