* {
    margin: 0;
    overflow: hidden;
}
html,body {
    height: 100%;
}
.nav {
    width: 100%;
    height: 90px;
    line-height: 90px;
    list-style: none;
    color: #fff;
    position: fixed;
    text-align: center;
    letter-spacing:3px;

}
.right {
    float: right;
    margin-right: 1%;
    margin-top: 1%;

}
#about {
    width: 47px;
    height: 47px;
    display: inline-block;
    background-image: url(../images/cancellation.png);
}

.sidebar {
    width: 7%;
    height: 40%;
    line-height: 90px;
    position: fixed;
    top: 50%;
    transform: translateY(-50%);


}
.sidebar ul {
    font-size: 20px;
    font-weight: 5c00;
    padding-left: 15%;

}
.sidebar a {
    text-decoration: none;
    /*color: #cbcbcb;*/
}

.sidebar a:hover {
    color: rgb(255, 148, 111);
}



.nav-unselect {
    color: #FFFFFF;
}
.nav-select {
    font-weight: 900;
    color: rgb(255, 148, 111);
}




/* 主体 */
iframe {
    width: 100%;
    height: 100%;
    border-width: 0;
}
/* 底部 */
footer {
    /* border-top: 1px solid #e3e3e3; */
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    text-align: center;
    font: 14px Helvetica Neue,Helvetica,PingFang SC,\5FAE\8F6F\96C5\9ED1,Tahoma,Arial,sans-serif;
    box-shadow: 0 -1px 2px 0 rgba(0,0,0,.0);
    box-sizing: border-box;
    background-color: rgba(255,255,255,.05);
    z-index: 999;
    height: 20px;
    font-size: 13px;
    line-height: 20px;
}
footer a {
    color: #3573ab;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
}