* {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: 0;
    -webkit-tap-highlight-color: transparent;
    padding: 0;
    margin: 0;
    border: 0;
}

html,
body {
    word-wrap: break-word;
    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    -ms-hyphens: auto;
    -o-hyphens: auto;
    hyphens: auto;
    word-break: break-all;
    vertical-align: baseline;
    height: 100%;
    font-size: 14px;
    font-family: Microsoft YaHei, -apple-system, SF UI Text, Arial, PingFang SC, Hiragino Sans GB,  WenQuanYi Micro Hei, "sans-serif"; 
}

body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td,
hr,
button,
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    margin: 0;
    padding: 0
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

ol,
ul {
    list-style: none
}

a,
a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
    outline: 0;
}

button {
    border: 0;
    padding: 0;
    cursor: pointer;
}

button:disabled,
input:disabled {
    cursor: default;
    background-color: #afafaf !important;
    color: #FFFFFF !important;
}

button,
input,
select,
textarea {
    border: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: #a4a4a4;
}

input:-moz-placeholder,
textarea:-moz-placeholder {
    color: #a4a4a4;
}

input::-moz-placeholder,
textarea::-moz-placeholder {
    color: #a4a4a4;
}

input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: #a4a4a4;
}

.clearfix:after {
    display: block;
    clear: both;
    content: "";
    visibility: hidden;
    height: 0
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.hidden {
    display: none;
}

.font_on {
    color: #df1d1d !important;
}

.main {
    width: 100%;
    min-height: 100%;
    position: relative;
}

.gray_bg {
    background-color: #eeeeee;
}

.w1200 {
    width: 1200px;
    margin: 0 auto;
}

.w1280 {
    width: 1280px;
    margin: 0 auto;
}

@media screen and (min-width:1920px) {

}

.padding_b100 {
    padding-bottom: 100px !important;
}

.bread_line {
    height: 51px;
    line-height: 51px;
    color: #6c6c6c;
}

.bread_line .line_title {
    font-size: 14px;
    color: #6c6c6c;
}

.bread_line .line_item {
    font-size: 14px;
    color: #6c6c6c;
    margin-right: 5px;
}

.bread_line .on {
    color: #6c6c6c;
}

/* 公共头部 */
.head {
    height: 101px;
}

.head_top{
    display: flex;
    justify-content: space-between;
}


.head_top_left {
    float: left;
    margin-top: 21px;
    margin-left: 56px;
    flex: 2;
}

.head_top_right {
    float: right;
    margin-top: 32px;
    margin-right: 52px;
    margin-left: 40px;
    flex: 1.5;
}

.head_login {
    color: #212225;
    height: 33px;
    line-height: 33px;
    display: flex;
    justify-content: center;
}

.head_login .head_login_a {
    margin-left: 15px;
}

.head_login .head_login_name {
    margin-top: 2px;
    margin-right: 4px;
    padding-left: 20px;
}

.head_login .head_login_a {
    display: block;
    float: right;
}

.head_login .head_login_name>img {
    float: left;
    margin-top: 8px;
    margin-right: -9px;
}

.head_login .head_login_name>img {
    width: 26px;
    height: 26px;
    border-radius: 50%;
}

.head_not_login {
    width: 128px;
    height: 43px;
    line-height: 42px;
    border-radius: 3px;
    font-size: 16px;
    color: #212225;
    text-align: center;
    padding-left: 27px;
}

.head_not_login img {
    float: left;
    margin-left: 36px;
    margin-top: 14px;
    margin-right: 10px;
}

.head_not_login:hover {
    border: 1px solid #ffffff;
    color: #d90000;
    background: url(../images/ico_7.png) no-repeat 40px 14px #ffffff;
}


.head_nav {
    height: 63px;
    background-color: #FFFFFF;
    margin-bottom: 4px;
    float: right;
    margin-top: 18px;
}


.head_nav .nav ul li {
    padding-right: 46px;
    float: left;
}

.head_nav .nav ul {
    width: auto;
}

.nav_item {
    display: block;
    padding: 0;
    height: 63px;
    line-height: 63px;
    box-sizing: border-box;
    font-size: 20px;
    color: #202020;
    -webkit-transition: 0.1s all;
    -moz-transition: 0.1s all;
    -ms-transition: 0.1s all;
    -o-transition: 0.1s all;
    transition: 0.1s all;
}

.head_nav .nav ul li.on,
.head_nav .nav ul li :hover {
    color: #1852eb;
}

.head_nav .nav ul li.on .nav_item::after,
.head_nav .nav ul li :hover::after {
    content: '';
    border-bottom: 3px solid #1852eb;
    display: block;
    width: 17px;
    height: 4px;
    margin: 0 auto 0;
}

.head_top_left img {
    float: left;
    position: relative;
    top: 17px;
}

.logo_img_right {
    border-left: 1px solid #c0c0c0;
    float: left;
    margin-left: 17px;
    padding-left: 17px;
    margin-top: 14px;
    width: 41%;
}
.logo_img_right .logo_img_right_top {
    font-size: 20px;
    font-family: 'SimHei';
    color: #212225 !important;
}

.head_top .logo_img_right img{
    width: 51%;
}

.head_top .head_top_left{
    margin-left: 0px;
}

.head_top .head_top_right{
    margin-right: 0px;
}

.head.head_top .head_top_left{
    margin-left: 56px;
}

.head.head_top .head_top_right{
    margin-right: 52px;
}

.logo_img_right img{
    width: 41%;
    display: block;
    float: none;
    margin-left: 33px;
    position: inherit;
}

.logo_img_right .logo_img_right_bottom {
    font-size: 30px;
    font-family: 'SimHei';
    color: #212225 !important;
    margin-top: 6px;
}
.main_content {
    background: url(../images/bj_3.jpg) no-repeat top center #f5f7fa;
    background-size: 100%;
    min-height: 1000px;
    padding-bottom: 30px;
}

.banner {
    width: 100%;
}

.head_user {
    display: inline-block;
    position: relative;
    cursor: pointer;
    z-index: 10000;
}

.head_user_list {
    position: absolute;
    background-color: #ffffff;
    width: 100px;
    text-align: center;
    padding: 10px 0px;
    border-radius: 8px;
    display: none;
}

.head_user .head_user_list a {
    font-size: 14px;
    color: #292929 !important;
    display: block;
}

.head_login_name i {
    position: relative;
    top: 2px;
    left: 4px;
}

.head_user_list li {
    height: 37px;
    line-height: 37px;
}

.head_user_list li:hover {
    background-color: #cbdbfe;
}

.head_user_list li a:hover {
    color: #054deb !important;
}

.head_user_list_block {
    display: block;
}

.head .head_manage {
    padding: 0px 10px;
    border: 1px solid #3776ff;
    border-radius: 3px;
    margin-left: 26px;
    color: #3776ff !important;
    min-width: 67px;
}

.head_manage:hover {
    background-color: #3776ff;
    color: #fff !important
}

.head_org_name {
    margin-left: 20px;
    max-width: 250px;
}

.expand {
    color: #2f70fc !important;
    position: absolute;
    right: 70px;
    bottom: 12px;
    cursor: pointer;
    font-size: 12px;
}
.expand i{
    font-size: 14px;
}

.lesson_div_zk {
    height: 38px;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.height_auto {
    height: auto !important;
    display: block !important;
}

/*公共脚部  start*/
.foot {
    width: 100%;
    height: 73px;
    background-color: #20203b;
    color: #ffffff;
    text-align: center;
    line-height: 73px;
}

/*公共脚部  end*/

/* 分页 公共  start */

#cardpage{
    text-align: center;
}
.paginga {
    width: 660px;
    font-size: 0;
    text-align: center;
    margin: 37px auto 96px;
}
.paginga a, .paginga .p_prev, .paginga .p_next, .paginga .p_go {
    
    border: 1px solid #e3e4e4;
    display: inline-block;
    font-size: 12px;
    color: #333333;
    line-height: 26px;
    text-align: center;
    margin: 0 3px;
    border-radius: 2px;
}
.paginga a.a_cut {
    border: 1px solid #164fe0;
    background: #164fe0;
    color: #ffffff;
}
.paginga .layui-laypage .layui-laypage-curr .layui-laypage-em{
    background: #164fe0;
    background-color: #164fe0 !important;
}
.paginga .layui-laypage span{
    margin-bottom: 0px;
    margin: 0 3px;
}
.paginga a:hover, .paginga .p_prev:hover, .paginga .p_next:hover, .paginga .p_first:hover, .paginga .p_last:hover {
    border: 1px solid #164fe0;
    background: #164fe0;
    color: #ffffff;
}

/* 分页 公共  end */

/* 404 */
.main_404_con {
    background-color: #f2f1f1;
    height: 100%;
    padding-bottom: 29px;
    min-height: 770px;
}

.main_404 {
    text-align: center;
    padding-top: 179px;
}

.main_404 div {
    margin: 39px 0px;
    font-size: 22px;
    color: #6c6c6c;
}

.main_404 a {
    width: 116px;
    height: 36px;
    text-align: center;
    line-height: 36px;
    background-color: #e62e37;
    color: #FFFFFF;
    display: inline-block;
    border-radius: 3px;
}

/* end */

/* 登录页公共样式 */
.class-layer-login {
    border-radius: 10px;
}

.class-layer-login .layui-layer-setwin .layui-layer-close2 {
    right: -5px;
    top: -11px;
    color: #949494;
    background-color: #fff;
    border: 0px
}

.iLayui-open-skin {
    border-radius: 10px;
}

.iLayui-open-skin .layui-layer-title {
    height: 0;
    line-height: 0;
    border-radius: 4px;
}


/* 划归样式 */
.home_2_ul img:hover,
.teacher_list img:hover,
.famous_teacher_list_l img:hover,
.topic_left:hover,
.lesson_left:hover,
.lesson_list_left:hover,
.my_user_left:hover {
    box-shadow: 2px 0 4px rgba(0, 21, 41, .35);
}

/* 输入框点击样式 */
.layui-form .layui-input:focus {
    border-color: #e62e37 !important
}

/* 修改密码 */
.class-layer-password .layui-form-label {
    display: block;
}

.not_password_con {
    margin: 0 20px;
}

.class-layer-password .layui-title {
    color: #222222;
    margin-bottom: 5px;
}

.class-layer-password .layui-btn {
    background-color: #e62e37;
}

.class-layer-password .layui-btn-yzm {
    background-color: #f2f2f2;
}

.class-layer-password .layui-btn-yzm:hover {
    border: 1px solid #e62e37;
}

.class-layer-password .layui-input,
.class-layer-password .layui-btn {
    border-radius: 5px;
}


.main_accomplish {
    position: absolute;
    right: 0px;
    top: 0px;
}

.main_not_accomplish {
    background: url(../images/ico6.png) no-repeat;
    position: absolute;
    right: 0px;
    top: 0px;
    width: 71px;
    height: 25px;
    text-align: center;
    color: #ffffff;
    line-height: 25px;
    padding-left: 5px;
    border-top-right-radius: 3px;
}

.main_wc_accomplish {
    background-color: #00cc7e;
    position: absolute;
    right: 0px;
    top: 0px;
    width: 67px;
    height: 26px;
    text-align: center;
    color: #ffffff;
    line-height: 25px;
    padding-left: 5px;
    border-top-right-radius: 3px;
    border-bottom-left-radius: 15px;
}

.bg-orange{
    background-color: #fb8a1b;
}

.bg-red{
    background-color: #f3533e;
}

.logo-red {
    position: absolute;
    left: 64px;
    transform: translate(-17%, -125%);
    top: 55px;
}

.logo-red img {
    overflow: hidden;
    display: inline-block;
    width: 139px;
    height: 45px;
    position: relative;
    left: -777px;
    -webkit-filter: drop-shadow(#e01919 777px 0);
    filter: drop-shadow(#e01919 777px 0);
}

/* 20250211 */
.font_grey{
    color: #626262!important;
}
.font_blue{
    color: #3776ff!important;
}

.is_read::after {
    content: "";
    width: 5px;
    height: 5px;
    background-color: #df2808;
    position: relative;
    right: 0px;
    top: -11px;
    display: inline-block;
    border-radius: 50%;
}
.is_read_not::after{
    background-color: initial;
}

.head_gb{
    height: 162px;
    background: url(../images/gb_top_bj.jpg) no-repeat center;
}
.head_top_left_gb{
    margin-top: 19px;
}
.head_top_left_gb .logo_img_right_top{
    color: #fff !important;
}
.head_top_right_gb{
    margin-top: 42px;
}
.head_top_right_gb .head_login {
    color: #fff !important;
}

.head_gb .head_manage {
    border: 1px solid #ffffff;
    color: #ffffff !important;
  }
.head_gb .head_manage {
    padding: 0px 3px;
    border: 1px solid #ffffff;
    border-radius: 3px;
    margin-left: 26px;
    color: #ffffff !important;
  }

  .head_gb .head_manage:hover{
    background-color: initial;
  }

.nav_gb{
    height: 82px;
    background-color: #FFFFFF;
    line-height: 82px;
    border-radius: 8px;
    box-shadow: 0px 1px 10px #aeaeae;
    margin-top: -34px;
    overflow: hidden;
    z-index: 1000;
    position: relative;
}
.nav_gb li{
    float: left;
    margin-left: 82px;
    font-size: 20px;
}
.nav_gb i{
    font-size: 23px;
    color: #3676fe;
    margin-right: 13px;
}
.nav_gb i.icon-gerenzhongxin{
    margin-right: 11px;
}
.nav_gb .on a{
    color: #3676fe;
}


.lesson_content .exam_span {
    font-size: 26px;
    float: left;
    font-weight: 400;
}

.lesson_content .exam_span span {
    background: #3776ff;
    padding: 20px 5px 0 0;
    font-size: 0;
    line-height: 0;
    margin-right: 10px;
    position: relative;
    top: 2px;
}

.lesson_content .exam_title{
    padding-bottom: 28px;
}

/* Safari 浏览器特定样式 */
@supports (-webkit-backdrop-filter: blur(1px)) {
    .main_2_brief_content {
        height: 52px !important /* Safari 浏览器中设置的高度 */
    }
    .lesson_div_zk{
        height: 36px !important /* Safari 浏览器中设置的高度 */
    }
    .head_login {
        height: 33px;
        line-height: 33px;
    }
}