html, body {
    padding: 0;
    margin: 0;
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, \5FAE软雅黑, Arial, sans-serif
}

body {
}
header{
    position: fixed;
    top: 0;
}

.header {
    width: 100vw;
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: white;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, .1);
    
}

.header_logo {
    margin-left: 60px;
}

.header_nav {
    margin-right: 60px;
    display: flex;
    align-items: center;
}

.header_nav a {
    padding: 0 20px;
    text-decoration: none;
    color: #989898;
}

.header_nav .header_login {
    width: 66px;
    height: 30px;
    border: 1px solid #3e3d5e;
    border-radius: 4px;
    color: #3e3d5e;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 20px 0 40px;
}

.header_nav .header_register {
    width: 66px;
    height: 30px;
    border: 1px solid #746ea6;
    background-color: #746ea6;
    border-radius: 4px;
    color: white;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
main{
    min-height: 100vh;
    background-color: #fafafa;
}
.main {
    width: 100%;
    margin: 0 auto;
}
.rule{
    width: 100%;
    /* border: 1px solid red; */
    display: flex;
    justify-content: space-between;
}
.rule_left{
    width: 17%;
    min-width: 325px;
}
.rule_left_title{
    padding: 15px;
}
.rule_left_title input{
    width: 240px;
    height: 32px;
    border: 1px solid #cccccc;
    font-size: 14px;
    color: #555;
    border-radius: 5px;
    padding: 0 5px;
}

.rule_left_main{
    padding: 15px;
}
.rule_left_main section{
    padding: 0 20px;
}
.rule_left_main section strong{
    padding: 15px 0;
    color: #4d4d4d;
    font-size: 16px;
    display: block;
}
.rule_left_main section div{
    display: flex;
    flex-flow: column;
}
.rule_left_main section div a{
    text-decoration: none;
    color: #808080;
    font-size: 14px;
    padding: 0px 0 14px 0;
}






.rule_right{
    width: 82%;
    border: 1px solid #e9e9e9;
    background-color: white;
    box-shadow: 0 0 30px 1px rgb(224, 224, 224);
}
.rule_right_main{
    padding: 30px;
}
.rule_right_main_title{
    color: #619be4;
    font-size: 24px;
    padding: 10px 0;
    border-bottom: 1px solid #dadada;
}
.rule_right_main_title strong{

}
.rule_right_main_details{
    margin: 30px 0;
}
.rule_right_main_details>strong{
    font-size: 18px;
    color: #619be4;
    display: block;
    padding: 10px 0;
}
.rule_right_main_details>section{
    display: flex;
    flex-flow: column;
}
.rule_right_main_details>section span{
    line-height: 40px;
    font-size: 14px;
    color: #808080;
}