header nav{position: relative;z-index: 2}

header .search_form_head {
    position: relative;
    z-index: 2;
    -webkit-transform: translateY(-75px);
    transform: translateY(-84px);
    max-width: 1170px;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}
header .search_form_head .form_main {
    height: auto;
    width: 32px;
    right: 15px;
    margin: 0;
    position: absolute;
    top: 28px;
    background-color: #1F1F1F;
    transition: width 1s;
    -moz-transition: width 1s;
    /* Firefox 4 */
    -webkit-transition: width 1s;
    /* Safari and Chrome */
    -o-transition: width 1s;
    /* Opera */

}
header .search_form_head .form_main .search-dropdown{display: none;border-bottom: 1px solid #B4B5B5}
header .search_form_head .form_main .dropdown-menu{top: 40px;}

header .search_form_head .form_main .search_form{
    border: none;
}

header .search_form_head .form_main.open .search_form .form-label{
    border-bottom: 1px solid #B4B5B5;
}
header .search_form_head .form_main.open {
    width: calc(100%);
}
header .search_form_head .form_main.open .search_form .form-label {
    width: 100%;
}
header .search_form_head .search_form {
    position: relative;
}
header .search_form_head .search_form .form-label {
    padding-left: 7px;
    width: 150px;
}

header .search_form_head .input-wrap .seach_ico{}

header .search_form_head  .open .input-wrap .seach_ico{background:none}

header  .search_form .form-label span{opacity:0}
header .search_form .input-wrap .close{opacity:0}
header .open .search_form .input-wrap .close{opacity:1}



.search_form {
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid #B4B5B5;
    padding-left: 110px;
}
.search_form .search-dropdown{position: static;width: 100px;height: 50px;}
.search_form .form-label {
    float: none;
    height: 40px;
    cursor: text;
    padding-left: 0px;
    display: block;
}
.search_form .form-label:focus {
    outline: -webkit-focus-ring-color auto 5px;
}
.search_form .form-label span {
    float: left;
    height: 40px;
    line-height: 40px;
    font-weight: 200;
    opacity: 1;
    transition: opacity cubic-bezier(0.38, 0.04, 0.35, 0.96) 600ms;
    display: block;
    font-size: 16px;
    color: #d8d8d8;
}
.search_form .input-wrap {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0 ;
    transform: translateX(100%) translateX(-35px);
    transition-duration: 0.8s;
    -moz-transition-duration: 0.8s;
    /* Firefox 4 */
    -webkit-transition-duration: 0.8s;
    /* Safari 和 Chrome */
    -o-transition-duration: 0.8s;
    /* Opera */
}
.search_form .input-wrap i {
    width: 30px;
    display: block;
    height: 40px;
    line-height: 40px;
    text-align: right;
    cursor: pointer;
    position: relative;
}
.search_form .input-wrap .seach_ico {
    position: relative;
}
.search_form .input-wrap .seach_ico:before {
    content: '';
    background: url('/assets/images/search_ico.png') no-repeat;
    /*兼容没测*/
    position: absolute;
    right: -12px;
    bottom: 0px;
    z-index: 200;
    width: 32px;
    height: 26px;
}
.search_form .input-wrap .input {
    position: relative;
    width: calc(100% - 50px);
}
.search_form .input-wrap .input input {
    width: 100%;
    height: 39px;
    line-height: 40px;
    margin-left: 20px;
    border: none;
    border: 0;
    background: 0 0;
    outline: 0;
    color: #ffffff;
}
.search_form .input-wrap .input input:focus {
    border: none;
}
.search_form .input-wrap .close {
    width: 20px;
    display: block;
    height: 40px;
    line-height: 40px;
    cursor: pointer;
    position: absolute;
    top: 0;
    right: 0;
    text-align: center;
}
.search_form .input-wrap .close .close_ico {
    position: relative;
}
.search_form .input-wrap .close .close_ico:before {
    content: '';
    background: url('/assets/images/close_ico.png') no-repeat;
    position: absolute;
    right: -12px;
    bottom: 0px;
    z-index: 2;
    width: 32px;
    height: 26px;
}
.search_form .input-wrap .close i {
    text-align: center;
}
.form_main.open .search_form .input-wrap {
    transform: translateX(1px);
    padding-left: 110px;
}
.form_main{position: relative;}
.form_main .search-dropdown{position: absolute;height: 40px;width: 110px}
.form_main .search-dropdown button{border: 0;height: 40px;width: 93px;font-size: 16px;background: none;text-align: left;padding: 0;}
.form_main .search-dropdown button i{background: url(/assets/images/search.png) no-repeat 7px 10px;width: 20px;display: inline-block;height: 18px;}
.form_main .search-dropdown .dropdown-menu{min-width: 99px;border: none;border-radius:0px;margin: 0;border: 1px solid #d8d8d8}
.form_main .search-dropdown .dropdown-menu li{min-width: 99px;font-size: 16px;line-height: 2;text-align: center}

#button_product{color: #ffffff}