@charset "utf-8";

.md-home .page_4 .p4_b .p4_nav .nav{min-width:60%;}
.md-home .page_4 .p4_b .p4_nav .nav .n_item{}

.md-header .head_b .hb_r .hb_ul1 .hb_li1.ab {
    position: relative;
}

.md-header .head_b .hb_r .hb_ul1 .hb_li1.ab:hover .ul2 {
    display: block;
}

.md-header .head_b .hb_r .hb_ul1 .ul2 {
    display: none;
    position: absolute;
    left: 0;
    top: 100%;
    width: 100%;
}

.md-header .head_b .hb_r .hb_ul1 .ul2 .a2 {
    background-color: #d7d8d8;
    color: #4d4d4d;
    display: block;
    line-height: 1.2;
    text-align: center;
    padding: 0.2rem 0.25rem;
}

.md-header .head_b .hb_r .hb_ul1 .ul2 .a2:hover {
    color: #0050d9;
}