* {
    margin: 0;
    padding: 0;
    list-style: none;
}

.tool {
    background: url("https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/tool.png") no-repeat;
    filter: alpha(opacity=50);
    background-size: 100%;
    width: 75px;
    height: 35px;
    position: absolute;
    top: 25px;
    right: 20px;
}

.tool a {
    display: inline-block;
    width: 35px;
    height: 35px;
    float: left;
}

.logo {
    width: 59px;
    height: 41px;
    background-image: url(https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/logoiffg.png);
    background-size: cover;
    margin: 130px auto 0 auto;
}

.num {
    margin-top: 25px;
    text-align: center;
    font-size: 13px;
}

ul {
    margin-top: 50px;
}

ul li {
    height: 40px;
    width: 80%;
    border-bottom: 1px solid #f3f3f3;
    margin: 20px auto;
}

ul li .left {
    float: left;
    /*margin-left: 40px;*/
}

ul li .right {
    float: right;
    /*margin-right: 40px;*/
}

.exit {
    width: 120px;
    height: 50px;
    background-color: #000000;
    margin: 100px auto;
    line-height: 50px;
    text-align: center;
}
.exit a{
    display: inline-block;
    width: 100%;
    height: 50px;
    text-decoration:  none;
    color: #fefefe;
}
ul li a{
    width: 100%;
    height: 40px;
    display: inline-block;
    text-decoration: none;
    color: black;
}