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

body {
    -moz-user-select: none; /*火狐*/
    -webkit-user-select: none; /*webkit浏览器*/
    -ms-user-select: none; /*IE10*/
    user-select: none;
}

.top {
    background-color: white;
    width: 100%;
    position: fixed;
    height: 70px;
    top: 0;
}

.top .back {
    width: 58px;
    height: 18px;
    position: absolute;
    top: 30px;
    left: 10px;
    background: url("https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/back.png");
    background-size: 100%;
}

.back a {
    display: inline-block;
    width: 29px;
    height: 18px;
    float: left;
}

.top .center {
    width: 300px;
    height: 35px;
    margin: 20px auto;
    text-align: center;
}

.top .center p {
    font-size: 20px;
}

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

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

#input_box {
    margin-top: 75px;
    width: 100%;
    height: 40px;
    /*padding-left: 20px;*/
}

#input_box .gray {
    width: 80%;
    height: 100%;
    background-color: #f6f6f6;
    margin-left: 20px;
    float: left;
}

#input_box .gray .icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    margin: 10px;
    background-image: url("https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/search2.png");
    background-size: 100%;
    float: left;
}

#input_box .gray input {
    height: 40px;
    width: 180px;
    border: none;
    background-color: #f6f6f6;
    line-height: 40px;
}

#input_box a {
    text-decoration: none;
    color: #000;
    line-height: 40px;
    margin-left: 10px;
}

#least_search {
    width: 100%;
    margin-top: 50px;
}

#least_search .on {
    width: 100%;
    height: 20px;
}

#least_search p {
    margin-left: 20px;
    font-size: 14px;
    line-height: 20px;
    display: inline-block;
}

#least_search #clear {
    width: 18px;
    height: 18px;
    background-image: url(https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/clear.png);
    background-size: 100%;
    margin-top: 1px;
    float: right;
    margin-right: 30px;
}

#least_search .down {
    width: 100%;
    height: 130px;
    overflow: hidden;
    position: relative;
}

#least_search .down ul li {
    background-color: #f6f6f6;
    display: inline-block;
    margin-top: 20px;
    margin-left: 20px;
    height: 20px;
    padding: 10px;
}

#least_search .down ul li a {
    display: inline-block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: #000;

}
#more{
display: none;
    width: 20px;
    height: 20px;
    background-image: url(https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/more.png);
    background-size: cover;
    position: absolute;
    top: 290px;
    right: 20px;
}
#least_search .down ul #block {
    width: 20px;
    background-color: #ffffff;
    /*background-image: url(https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/more.png);*/
    /*background-size: cover;*/
    /*opacity: 0;*/
}

#least_search .down ul #back {
    width: 10px;
    height: 10px;
    background-image: url(https://fycoder.oss-cn-hangzhou.aliyuncs.com/web/xiyan/search-back.png);
    background-size: cover;
    display: none;
    position: relative;
    top: 7px;
    /*opacity: 0;*/
    margin-top: 20px;
}