.img{
    width: 100%;
    height:100%;
}
a{
    color:#222;
}

.block_img{
    display:block;
    width: 100%;
    height:auto;
}

.header{
    position: relative;
    width: 100%;
    height:auto;
}
/*登录前*/
.system-login{position: absolute;right:0.54rem;top:.38rem;width: .7rem;height: .7rem;border-radius: 50%;background:#ff5738;overflow: hidden;}
/*退出登录窗口*/
 .header-alert-pos {
    display:none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}
.header-logined-list {
    display:none;
    position: absolute;
    z-index: 999;
    top: 1.2rem;
    right: .5rem;
    width: 2.4rem;
    height: auto;
    background: #fff;
    border-radius: .1rem;
    -webkit-border-radius: .1rem;
    -o-border-radius: .1rem;
    -moz-border-radius: .1rem;
    -ms-border-radius: .1rem;
}
.header-logined-list li {
    width: 1.7rem;
    height: .9rem;
    margin: 0 auto;
    border-bottom: 1px solid #e6e6e6;
    font-size: .28rem;
    text-align: center;
    line-height: .9rem;
}
.header-logined-list .dropdown {
    width: .19rem;
    height: .13rem;
    line-height: 0;
    position: absolute;
    top: -.13rem;
    right: .3rem;
}
.header-logined-list .dropdown img {
    width: .19rem;
    height: .13rem;
    display: block;
}
/*结束*/

/*按钮样式*/
.btn{
    position: fixed;
    bottom: .4rem;
    left:50%;
    margin-left: -3.36rem;
    display:block;
    width: 6.72rem;
    height:1rem;
    border: none;
    border-radius:.6rem;
    background:linear-gradient(to right,#ff5738,#fe7156);
    color:#fff;
    font-size:.36rem;
    font-weight: bold;
    text-align: center;
    line-height: 1rem;
}


/*吐司*/
.alert{
    display: none;
    line-height: .8rem;
    text-align: center;
    width:5.4rem;
    height: .8rem;
    margin-left: -2.7rem;
    margin-top: -.4rem;
    font-size: .35rem;
    background: rgba(0,0,0,0.7);
    position: fixed;
    top: 70%;
    left: 50%;
    color: #ffffff;
    border-radius: 5px;
}