.meun {
    width: 240px;
    height: 100%;
    position: fixed;
    z-index: 999;
    border-right: 1px solid #e6e6e8;
    box-sizing: border-box;
}

.meun .logo {
    width: 146px;
    height: 36px;
    margin: 0 auto;
    display: block;
    margin-top: 18px;
    margin-bottom: 34px;
}

.meun ul {
    padding: 0 28px;
} 
.meun ul li {
    height: 40px;
    line-height: 40px;
    margin-bottom: 8px;
} 
.meun ul .active {
    background: #f7f7f7;
    border-radius: 3px;
} 
.meun ul li a{} 
.meun ul li a img {
    vertical-align: text-top;
    margin-left: 4.5px;
} 
.meun ul li a span {
    font-size: 16px;
    color: #111622;
} 

.header {
    position: fixed;
    width: calc(100% - 240px);
    height: 64px;
    left: 240px;
    z-index: 999;
    border-bottom: 1px solid #e6e6e8;
    box-sizing: border-box;
}

.header .search{
    width: 440px;
    height: 36px;
    background-color: #f7f7f7;
    border: 1px solid #e6e6e8;
    border-radius: 3px;
    box-sizing: border-box;
    margin: 14px 0 0 32px;
}
.header .search input {
    background: #0000;
    height: 100%;
    padding-left: 17px;
    width: 343px;
    box-sizing: border-box;
}
.header .search .but{
    position: relative;
    height: 100%;
    width: 75px;
    padding-left: 20px;
    line-height: 34px;
}
.header .search .but::before {
    content: " ";
    position: absolute;
    width: 1px;
    height: 16px;
    background-color: #e6e6e6;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    /* margin-top: -8px; */
}
.header .search .but span {
    font-size: 16px;
    color: #666;
}


.header .login{
    width: 611px;
}
.header .login .menu_two {
    line-height: 64px;
}
.header .login .menu_two li {
    float: left;
    margin-right: 16px;
    padding-right: 10px;
}
.header .login .menu_two li a{}
.header .login .menu_two li a i {}
.header .login .menu_two li a span {
    font-size: 14px;
    color: #111622;
}

.header .login .log_reg {
    margin-top: 14px;
}
.header .login .log_reg li:first-child {
    border: 1px solid #e6e6e8;
    height: 30px;
    border-radius: 5px;
    padding: 0 8px;
}
.header .login .log_reg li:last-child {
    padding:0 26px;
    height: 30px;
    background-color: #ff2626;
    border-radius: 5px;
    color: #fff;
}
.header .login .log_reg li {
    float: left;
    line-height: 32px;
    margin-right: 24px;
}
.header .login .log_reg li i {}
.header .login .log_reg li span {}
.content {
    margin-left: 240px;
    padding-top: 64px;
}