.sec {
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
    box-sizing: border-box;
}

.poster {
    margin-bottom: .3215rem
}

.poster-list img {
    width: 100%
}

.poster-list .poster-txt {
    position: relative;
    overflow: hidden;
    transition: height .24s
}

.poster-list .poster-txt.xg:after {
    content: "";
    position: absolute;
    bottom: 0;
    display: block;
    width: 100%;
    height: 28.2rem;
    background: -moz-linear-gradient(to bottom,rgba(255,255,255,0),#fff);
    background: -webkit-linear-gradient(to bottom,rgba(255,255,255,0),#fff);
    background: linear-gradient(to bottom,rgba(255,255,255,0),#fff)
}

.poster-btn {
    outline: none;
    display: block;
    width: 50%;
    line-height: 2;
    margin: .1rem auto;
    color: #7a7;
    text-align: center;
    cursor: pointer;

}
.poster-btn a{
    color: #7a7;
}
.current-menu {
    content: '';
    display: block
}