.ztMtop {
    position: fixed;
    width: 375px;
    height: 50px;
    background:rgba(255,255,255,0.8);
  
    z-index: 100;

    left:50%;
    margin-left:-187.5px;
    top: 0;
}

.ztMtop .ztMLogo {
    display: block;
    width: 121px;
    height: 66px;
    background: url(../img/logo1.png) no-repeat;
    -webkit-background-size: auto 100%;
    background-size: auto 100%;
    text-indent: -5000px;
    margin: 0 0 0 10px;
    padding: 0;
}

.ztMtop .ztMBtn1 {
    display: block;
    position: absolute;
    width: 110px;
    height: 36px;
    background: url(../img/btn.png) no-repeat;
    -webkit-background-size: 100%;
    background-size: 100%;
    top: 12px;
    right: 11%;
    text-indent: -5000px;
}

.ztMtop .ztMBtn2 {
    text-indent: -5000px;
    position: absolute;
    width: 24px;
    height: 19px;
    background: url(../img/btn-nav.png);
    -webkit-background-size: cover;
    background-size: cover;
    right: 2.7%;
    top: 15px;
}

.ztMtop .ztMtop2 {
    display: none;
    position: absolute;
    left: 0;
    width: 100%;
    top: 50px;
    z-index: 109;
    line-height: 40px;
    background: #000;
    text-align: center;
}

.ztMtop .ztMtop2::after {
    content: "";
    position: absolute;
    right: 5%;
    top: -7px;
    width: 0;
    height: 0;
    overflow: hidden;
    border-bottom: 7px solid rgba(9, 3, 1, .95);
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
}

.ztMtop .ztMtop2 a {
    position: relative;
    display: inline-block;
    width: 22%;
    box-sizing: border-box;
    color: #fff;
    text-align: center;
    text-decoration: none;
    font-size: 14px;
    letter-spacing: -1px
}

.ztMtop .ztMtop2 a:nth-child(n+2)::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    border-left: 1px solid #fff;
    height: 10px;
    margin: -5px 0 0
}