.page_mobile{
    display: none;
}
.page_container{
    min-width: 1200px;
    letter-spacing: 1px;
    font-size: 16px;
    color: #333;
    background-color: #ececf4;
}
/*header*/
.header{
    width: 100%;
    height:80px;
    background-color: #286bee;
}
.header_fixed{
    position: fixed;
    top: 0;
    left: 0;
    z-index:5;
}
.nav{
    width: 1200px;
    margin: 0 auto;
}
.nav_list{
    float: left;
    line-height: 80px;
}
.nav_list a{
    color: #fff;
}
.nav_item{
    float: left;
    margin-right:35px;
    color: #fff;
}

.nav_item:hover .nav_item_hov{
    display: block;
}
.nav_item_hov{
    display: none;
    width: 100%;
    background-color: #286bee;
}
.nav_item_hov a{
    display: block;
    width: 100%;
    line-height: 40px;
    color: #fff;
    text-align: center;
}
.nav_item_hov a:hover{
    background-color: #437ef3;
}
.login{
    float: right;
    text-align: right;
    padding-top: 23px;
}
.login_student,.login_school{
    color: #fff;
    min-width: 80px;
    height: 32px;
    padding: 0 15px;
    line-height: 32px;
    text-align: center;
    overflow: hidden;
    background-color: #ffa705;
    border: 1px #ffa705 solid;
    border-radius: 30px;
}
.login_school{
    color: #333;
    background-color: #fff;
    border: 1px #ffa705 solid;
}
.loginout{
    color: #333;
    min-width: 80px;
    height: 32px;
    padding: 0 15px;
    line-height: 32px;
    text-align: center;
    overflow: hidden;
    background-color: #fff;
    border: 1px #e17947 solid;
    border-radius: 30px;
}

/*center*/
.center{
    width: 100%;
    min-height: calc(100vh - 380px);
    margin-top: 80px;
    padding-top: 24px;
    padding-bottom: 80px;
    line-height: 30px;
}

/*test*/
.test_notice{
    width: 1100px;
    padding: 30px 50px;
    margin: 0 auto;
    border-radius: 10px 10px 0 0;
    background-color: #fff;
}
h4{
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}
.subject{
    width: 1100px;
    padding: 30px 50px 80px 50px;
    margin: 0 auto;
    margin-top: 10px;
    border-radius:0 0 10px 10px;
    background-color: #fff;
}
.subtopic{
    width: 100%;
    margin-bottom: 38px;
}
.one_word,.two_word{
    width: 1081px;
    /*margin: 0 auto;*/
    margin-top: 15px;
    border-top:1px #dcdddd solid;
    border-left:1px #dcdddd solid;
}
.two_word{
    width: 1023px;
}
.one_word li{
    float: left;
    width: 46px;
    height: 46px;
    text-align: center;
    line-height: 46px;
    border-right: 1px #dcdddd solid;
    border-bottom: 1px #dcdddd solid;
}
.two_word li{
    float: left;
    width: 92px;
    height: 46px;
    text-align: center;
    line-height: 46px;
    letter-spacing: 5px;
    border-right: 1px #dcdddd solid;
    border-bottom: 1px #dcdddd solid;
}
.test_item{
    width: 100%;
    margin-bottom: 20px;
}
.test_item:last-child{
    margin-bottom: 0;
}
.test_item p:first-child{
    float: left;
    width: 30px;
}
.test_item p:last-child{
    float: left;
    width:calc(100% - 30px);
}
.article{
    width: 1000px;
    margin: 0 auto;
}
.article p{
    width: 100%;
    text-indent: 32px;
}
.article p:first-child{
    width: 100%;
    text-align: center;
    text-indent: 0;
    margin-bottom: 10px;
}
.begin_test{
    width: 200px;
    margin: 0 auto;
    margin-top: 60px;
}
.begin_test a{
    width: 100%;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 17px;
    letter-spacing: 3px;
    color: #333;
    background-color: #ecf2fc;
    border: 1px #286bee solid;
    border-radius: 30px;
}
.test_prepare{
    position: relative;
    width: 880px;
    height: 50px;
    line-height: 50px;
    color: #fff;
    margin: 0 auto;
    font-size: 17px;
    letter-spacing: 3px;
    text-align: center;
    margin-top: 10px;
    background-color: #f2f2f2;
    border-radius: 30px;
    border: 1px #e0e0e1 solid;
    overflow: hidden;
}
.test_prepare p{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    width: 880px;
    height: 50px;
}
.count_down{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;
    height: 50px;
    border-radius: 30px;
    background-color: #286bee;
}
.countDown{
    animation-name: countDown;
    -webkit-animation-name: countDown;

    animation-duration: 5s;
    -webkit-animation-duration: 5s;

    animation-timing-function: linear;
    -webkit-animation-timing-function: linear;

    -webkit-animation-iteration-count: 1;
    animation-iteration-count: 1;

    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;

    visibility: visible !important;
}
@-webkit-keyframes countDown {
    0% {
        width:100%;
    }
    100% {
        width:0;
    }
}
@keyframes countDown {
    0% {
        width:100%;
    }
    100% {
        width:0;
    }
}
.test_info{
    width: 100%;
}
.test_tips{
    float: left;
    width: calc(100% - 295px);
    font-size: 15px;
    padding-left: 16px;
    line-height: 54px;
}
.test_time{
    display: none;
    float: left;
    width: 279px;
    height: 24px;
    line-height: 24px;
    padding: 15px 0;
    font-size: 17px;
    background-color: #bdd2fb;
    border-radius:0 30px 30px 0;
}
.test_time p:first-child{
    float: left;
    width: 107px;
    height: 24px;
    padding-left: 42px;
    background: url("../images/icon_02.png") no-repeat;
    background-size: 23px 23px;
    background-position: 15px 0;
    border-right:1px solid #666;
}
.test_time p:last-child{
    float: left;
    width: 65px;
    height: 24px;
    padding-left: 63px;
    background: url("../images/icon_03.png") no-repeat;
    background-size: 21px 22px;
    background-position: 33px 1px;
}
.sound_wave{
    display: none;
    width: 606px;
    height: 138px;
    margin: 34px auto;
}
.sound_recording{
    display: none;
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 17px;
    letter-spacing: 3px;
    color: #333;
    margin: 0 auto;
    margin-top: 55px;
    background-color: #ecf2fc;
    border: 1px #286bee solid;
    border-radius: 30px;
}
.test_end_modal{
    display: none;
    position: fixed;
    top: 20vh;
    left: calc((100% - 500px) / 2);
    z-index: 11;
    width: 440px;
    padding: 0 30px;
    background-color: #fff;
    border-radius: 10px;
}
.m_title{
    width: 100%;
    height: 50px;
    color: #666;
    line-height: 50px;
}
.m_t_left,.m_close{
    float: left;
    width: 50%;
}
.m_close{
    text-align: right;
}
.m_content{
    width: 94%;
    margin: 0 auto;
    color: #666;
    text-align: center;
    padding: 35px 0;
    border-top: 1px #dcdddd solid;
}
.m_btn{
    width: 100%;
    text-align: center;
    margin-top: 40px;
}
.m_btn_gray,.m_btn_blue{
    width: 128px;
    height: 35px;
    text-align: center;
    line-height: 35px;
    color: #fff;
    margin: 0 15px;
    background-color: #9fa5ad;
    border-radius: 30px;
}
.m_btn_blue{
    background-color: #2b6def;
}


/*footer*/
.footer{
    width: 100%;
    height: 126px;
    padding-top: 70px;
    background: url("../images/footer_bg.png") no-repeat;
    background-size: 100% 100%;
}
.contact_us{
    width: 1200px;
    margin: 0 auto;
}
.contact_us p{
    float: left;
    width: 380px;
    height: 56px;
    color: #333;
    margin-right: 30px;
    line-height: 56px;
    text-align: center;
    font-size: 17px;
    background-color: #fff;
}
.contact_us p:last-child{
    margin-right: 0;
}
.contact_us a{
    color: #333;
}

/*login*/
.modal_bg{
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.3);
}
.login_modal{
    display: none;
    position: fixed;
    left: calc((100% - 476px) / 2);
    top: calc((100vh - 459px) / 2);
    z-index: 11;
    width: 476px;
    height: 343px;
    color: #666;
    background-color: #fff;
    border-radius: 10px;
    border: 1px #d8d8d8 solid;
    text-align: center;
    background-image: url("../images/l_bg.png");
    background-size: 111px 111px;
    background-repeat: no-repeat;
    padding-top: 116px;
}
.login_modal p{
    margin-top: 50px;
}
.line_m_1{
    position: relative;
    bottom:6px;
    display: inline-block;
    width: 97px;
    height: 1px;
    margin-right: 5px;
    background-image: linear-gradient(to right,#efefef,#c7c8c8);
}
.line_m_2{
    position: relative;
    bottom:6px;
    display: inline-block;
    width: 97px;
    height: 1px;
    margin-left: 5px;
    background-image: linear-gradient(to right,#c7c8c8,#efefef);
}
.privacy{
    width: 100%;
    color: #333;
    margin: 15px 0;
    text-align: center;
}
.privacy input{
    margin-right: 5px;
}
.privacy a{
    color: #333;
    text-decoration: underline;
}

/*float*/
.float{
    position: fixed;
    right: 0;
    top: calc((100vh - 270px) / 2);
    width: 107px;
}
.float img{
    width: 100%;
}

.pcdisplayblock{
    display: block;
}
.displaynone{
    display: none;
}


/*��ʼ�������ҳ��*/
.c_box{
    width: 1120px;
    margin: 0 auto;
    margin-top: 50px;
    padding-bottom: 100px;
    background-color: #fff;
}
.c_header{
    width: 100%;
    height: 144px;
    text-align: center;
    /*line-height: 144px;*/
    color: #fff;
    font-size: 20px;
    letter-spacing: 1px;
    background-color: #2b6cf0;
    background-image: linear-gradient(to right,#2b6cf0,#4a86fe);
}
.c_header p:first-child{
    padding-top: 28px;
}
.c_header p{
    line-height: 40px;
}
.test_type{
    width: 530px;
    margin: 0 auto;
    margin-top: 50px;
    line-height: 40px;
}
.test_type img{
    position: relative;
    top: 3px;
    margin-right: 5px;
}
.start_btn{
    width: 200px;
    margin: 0 auto;
    margin-top: 100px;
}
.start_btn a{
    display: inline-block;
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border: 1px #4a86fe solid;
    border-radius: 30px;
    color: #4a86fe;
    font-size: 18px;
}
.start_btn a:hover,.start_btn a:focus,.start_btn a:active{
    box-shadow:0 0 20px #bdd2fb;
}

/*��ѡ*/
.question{
    padding:0 16px;
}
.read_content{
    font-size: 17px;
    margin-bottom: 40px;
}
.read_content p{
    color: orangered;
    font-weight: bold;
    font-size: 18px;
}
.q_text{
    margin-bottom: 15px;
}
.anwer_item{
    margin-bottom: 30px;
    margin-left: 11px;
}
.anwer_item:last-child{
    margin-bottom: 0;
}
.anwer_item input{
    display: none;
    margin-right: 15px;
}
.anwer_item>label{
    position: relative;
}
.anwer_item>label::before{
    display: inline-block;
    content: "";
    position: relative;
    bottom: 7px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid #e6e7e7;
    margin-right:15px;
    vertical-align: bottom;
    background-color: #edeef3;
}
.anwer_item>input:checked+label::before{
    background-color: #4d76ed;
    border: 1px #4d76ed solid;
}
.anwer_item input[type='checkbox']{
    display: inline-block;
    position: relative;
    top: 2px;
    width: 18px;
    height: 18px;
}
.anwer_item input[type='checkbox']+label::before{
    display: none;
}


/*���⿨*/
.dt_card{
    position: fixed;
    right: 5%;
    bottom: 25vh;
    width: 60px;
    height: 50px;
    line-height: 18px;
    font-size: 14px;
    color: #fff;
    text-align: center;
    background-color: #3161eb;
    border-radius: 50%;
    padding: 5px 0;
}
.dt_card img{
    width: 22px;
}
.dt_card_box{
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 3;
    width: 60%;
    height: 300px;
    padding: 10px 20% 20px 20%;
    overflow-y: auto;
    background-color: #f4f5f6;
}
.dt_card_box::-webkit-scrollbar{
    width:5px;
    height:5px;
}
.dt_card_box::-webkit-scrollbar-track{
    background: rgb(239, 239, 239);
    border-radius:2px;
}
.dt_card_box::-webkit-scrollbar-thumb{
    background: #bfbfbf;
    border-radius:10px;
}
.dt_card_box::-webkit-scrollbar-thumb:hover{
    background: #3161eb;
}
.dt_card_box::-webkit-scrollbar-corner{
    background: #3161eb;
}
.close{
    width: 100%;
    text-align: right;
}
.close img{
    width: 30px;
}

.question_type{
    width: 100%;
    margin: 15px 0;
}
.question_type h4{
    position: relative;
    font-size: 17px;
    padding-left: 25px;
}
.question_type h4:before{
    content: ' ';
    display: inline-block;
    position: absolute;
    top: 2px;
    left: 0;
    width: 0;
    height: 0;
    border: 8px transparent solid;
    border-left: 14px solid orangered;
}
.dt_card_box ul{
    padding: 0 25px;
}
.dt_card_box ul li{
    float: left;
    width: 35px;
    margin: 8px;
}
.dt_card_box ul li a{
    display: inline-block;
    width: 35px;
    height: 35px;
    border: 1px #aaa solid;
    border-radius: 50%;
    text-align: center;
    line-height: 35px;
    color: #999;
}
.dt_card_box ul li a:hover{
    color: #fff;
    background-color: #6990e0;
    border: 1px #6990e0 solid;
}