* {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-overflow-scrolling:touch;
    -webkit-tap-highlight-color:transparent;
    -webkit-touch-callout:none;
    -webkit-user-select:none;
    -khtml-user-select:none;
    -moz-user-select:none;
    -ms-user-select:none;
    user-select:none;
    padding: 0;
    margin: 0;
}
ul{
    list-style: none;
}
textarea,input{
    -webkit-user-select:text;
    -khtml-user-select:text;
    -moz-user-select:text;
    -ms-user-select:text;
    user-select:text;
}
html,body{
    overflow: hidden;
    width: 100%;
    height: 100%;
    background: #105a82;
}

.viewport{
    margin-left: 4.7rem;
    height: 100%;
    width: calc(100% - 4.7rem);
    background: #000000;
    position: absolute;
    z-index: 1;
}
/**********左侧列表***********/
.left_list{
    position: absolute;
    top: 50%;
    z-index: 10;
    transform: translateY(-50%);
    margin-left: .15rem;
}
.left_list>div{
    float: left;
}
.left_list:after{
    display: block;
    content: "";
    clear: both;
}
.level_anatomy{
    width: .48rem;
    height: 1.45rem;
    background: rgba(238,248,252,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: .2rem;
    line-height: 0.2rem;
    border-radius: 6px;
    padding: 0.03rem;
    text-align: center;
    box-sizing: border-box;
    margin: 0 auto;
    margin-top: 1.26rem;
    cursor: pointer;
}
.level_anatomy>div{
    width: .42rem;
    height: 1.38rem;
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    background: linear-gradient(0deg,#1887c2,#67c3ed);
    text-shadow: 1px 2px 1px #074285;
    border-radius: 6px;
    color: #ffffff;
    padding: 0 .1rem;
    box-sizing: border-box;
    display: flex;
    align-items: center;
}
.tree_anatomy{
    background: url("../../amphioxus/img/anatomy/tree_anatomy.png") no-repeat;
    background-size: contain;
    width: .38rem;
    height: 3.56rem;
    margin-top: .26rem;
}
/*one*/
.left_module>div{
    width: .98rem;
    height: .48rem;
    background: rgba(238,248,252,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: .2rem;
    border-radius: 6px;
    line-height: .48rem;
    padding: 0.02rem .02rem .04rem .03rem;
    text-align: center;
    box-sizing: border-box;
    cursor: pointer;
}
.left_module>div:nth-child(2){
    margin-top: .17rem;
}
.left_module>div:nth-child(3){
    margin-top: .34rem;
}
.left_module>div:nth-child(4){
    margin-top: .17rem;
}
.left_module>div:nth-child(5){
    margin-top: .34rem;
}
.left_module>div:nth-child(6){
    margin-top: .17rem;
}
.left_module>div>div{
    width: .92rem;
    height: .42rem;
    line-height: .42rem;
    background: linear-gradient(0deg,#1887c2,#67c3ed);
    text-shadow: 1px 2px 1px #074285;
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
}
.left_module>div.selected{
    background: rgba(255,246,216,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
}
.left_module>div.selected>div{
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
}

.left_body{
    position: absolute;
    display: none;
}
.left_anatomy{
    position: absolute;
    display: none;
}
.left_system{
    position: absolute;
    display: none;
}
.left_body>div,.left_system>div{
    position: absolute;
}
.tree_left_anatomy{
    position: absolute;
    background: url(../../amphioxus/img/anatomy/tree_fourteen.png) no-repeat;
    background-size: 100% 100%;
    width: .29rem;
    height: 7rem;
    top: -1.82rem;
    left: 1.84rem;
}
.level_left_anatomy{
    position: absolute;
    top: -2.15rem;
    left: 2.12rem;
}
/*two*/
.tree_system{
    background: url("../../amphioxus/img/anatomy/tree_six.png") no-repeat;
    background-size: contain;
    width: .28rem;
    height: 3.34rem;
    top: -1.4rem;
    left: 1.84rem;
    display: none;
}
.left_system .tree_system{
    top:1.55rem;
}
/*three*/
.level{
    top: -1.85rem;
    left: 2.12rem;
}
.left_system .level{
    top: 1.1rem;
}
.level_system{
    display: none;
}
.level_system:after{
    display: block;
    content: "";
    clear: both;
}
.level_system li,.level_left_anatomy li{
    width: 1.09rem;
    height: .48rem;
    background: rgba(238,248,252,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: .2rem;
    border-radius: 6px;
    line-height: .48rem;
    padding: 0.02rem .02rem .04rem .03rem;
    text-align: center;
    box-sizing: border-box;
    margin-top: .19rem;
    cursor: pointer;
}
.level_left_anatomy li{
    height: .4rem;
    margin-top: .14rem;
}
.level_system li div,.level_left_anatomy li div{
    width: 1.03rem;
    height: .42rem;
    line-height: .42rem;
    background: linear-gradient(0deg,#1887c2,#67c3ed);
    text-shadow: 1px 2px 1px #074285;
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
}
.level_left_anatomy li div{
    height: .34rem;
    line-height: .34rem;
}
.level_system li.selected,.level_left_anatomy li.selected{
    background: rgba(255,246,216,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
}
.level_system li.selected div,.level_left_anatomy li.selected div{
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
}
/*four*/
.tree_organ{
    left: 3.21rem;
}
.left_system .tree_organ{
    top: 3rem;
}
.tree_organ .tree_organ_digest{
    width: .26rem;
    height: 2.32rem;
    margin-top: -1.45rem;
    background: url("../../amphioxus/img/anatomy/tree_five.png") no-repeat;
    background-size: contain;
    display: none;
}
.tree_organ .tree_organ_breathe{
    width: .26rem;
    height: .48rem;
    background: url("../../amphioxus/img/anatomy/tree_two.png") no-repeat;
    background-size: contain;
    margin-top: -1rem;
    display: none;
}
.tree_organ .tree_organ_reproduction{
    width: .26rem;
    height: 0.02rem;
    background: url("../../amphioxus/img/anatomy/tree_one.png") no-repeat;
    background-size: contain;
    margin-top: -.1rem;
    display: none;
}
.tree_organ .tree_organ_motion{
    width: .26rem;
    height: .48rem;
    background: url("../../amphioxus/img/anatomy/tree_two.png") no-repeat;
    background-size: contain;
    margin-top: .35rem;
    display: none;
}
.tree_organ .tree_organ_nerve{
    width: .26rem;
    height: .48rem;
    background: url("../../amphioxus/img/anatomy/tree_two.png") no-repeat;
    background-size: contain;
    margin-top: 1.05rem;
    display: none;
}
.tree_organ .tree_organ_endocrine{
    width: .26rem;
    height: 0.02rem;
    background: url("../../amphioxus/img/anatomy/tree_one.png") no-repeat;
    background-size: contain;
    margin-top: 1.95rem;
    display: none;
}
/*five*/
.level_organ{
    font-size: 0.2rem;
    left: 3.47rem;
}
.left_system .level_organ{
    top:3rem
}
.level_organ li{
    width: 1.02rem;
    height: .4rem;
    line-height: .4rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    cursor: pointer;
}
.level_organ li.selected{
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
}

.level_organ ul:nth-child(1){
    display: none;
    margin-top: -1.6rem;
}
.level_organ ul:nth-child(2){
    display: none;
    margin-top: -2.2rem;
}
.level_organ ul:nth-child(3){
    display: none;
    margin-top: -.28rem;
}
.level_organ ul:nth-child(4){
    display: none;
    margin-top: .15rem;
}
.level_organ ul:nth-child(5){
    display: none;
    margin-top: .85rem;
}
.level_organ ul:nth-child(6){
    display: none;
    margin-top: 1.75rem;
}
.level_organ ul:nth-child(1) li{
    margin-top: 0.05rem;
}
.level_organ ul:nth-child(1) li:nth-child(1){
    margin-top: -.4rem;
}
.level_organ ul:nth-child(2) li{
    margin-top: .05rem;
}
.level_organ ul:nth-child(2) li:nth-child(1){
    margin-top: 1rem;
}
.level_organ ul:nth-child(4) li:nth-child(2){
    margin-top: .05rem;
}
.level_organ ul:nth-child(5) li:nth-child(2){
    margin-top: 0.05rem;;
}


.right_module{
    width: calc(100% - 2rem);
    height: 100%;
    margin-left: 2rem;
    position: relative;
}
/**********躯体结构***********/
.body_audio{
    position: absolute;
    bottom: 54px;
    left: 50%;
    transform: translateX(-50%);
    width: 818px;
    max-height: 1.35rem;
    background: #006A8E;
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    box-shadow: 0 2px 6px #042851;
    color: #fff;
    border-radius: 6px;
    padding: .13rem;
    font-size: .18rem;
    line-height: .3rem;
    overflow: auto;
    display: none;
}
.modal_body .body_audio{
    z-index: 10;
    left: calc(50% + 1.35rem );
}
.body_audio>div:first-child{
    width: .31rem;
    height: .44rem;
    background: url("../../amphioxus/img/anatomy/audio.png") no-repeat;
    background-size: contain;
    cursor: pointer;
}
.body_audio>div:last-child{
    margin-left: .41rem;
    margin-top: -.44rem;
}
/**************躯体结构测试***************/
.modal_body_test{
    font-size: 16px;
    display: none;
}
.body_test_organ{
    position: absolute;
    top: .4rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
}
.body_test_organ li.selected{
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
}
.body_test_organ li{
    float: left;
    width: 1.02rem;
    height: .4rem;
    line-height: .4rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    margin-right: 8px;
    font-size: 0.18rem;
}
.body_test_text{
    z-index: 10;
    position: absolute;
    top:1.25rem;
    left: 50%;
    transform: translateX(-50%);
    padding: .13rem .3rem .17rem .37rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    font-size: 0.16rem;
}
.body_test_img{
    position: absolute;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 8.98rem;
    /*height: 2.35rem;*/
    height: 2.5rem;
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    background: #9AC8DD;
    border-radius: 6px;
    z-index: 9;
}
.body_test_img1{
    width: 100%;
    height: 100%;
    background-image: url("../../amphioxus/img/anatomy/sjg.png");
    background-size: 100% 100%;
}
.body_test_submit{
    z-index: 10;
    position: absolute;
    bottom: 42px;
    left: 50%;
    transform: translateX(-50%);
    width: 1.12rem;
    height: .38rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    border-radius: 6px;
    font-size: .18rem;
    font-family: MicrosoftYaHei;
    font-weight: 400;
    color: rgba(255,255,255,1);
    line-height: .38rem;
    text-shadow: 2px 2px 1px #3a230a;
    text-align: center;
    cursor: pointer;
    display: none;
}
.body_test_info{
    z-index: 20;
    position: absolute;
    top: 0.98rem;
    transform: translateX(-50%);
    width: 1.62rem;
    height: 1.02rem;
    color: rgba(255,255,255,1);
    text-shadow: 2px 2px 1px #3a230a;
    background:rgba(255,246,216,1);
    border-radius:6px;
    text-align: center;
    font-size: .2rem;
    display: none;
}
.body_test_info>div:first-child{
    height: 0.51rem;
    line-height: 0.51rem;
}
.body_test_info_button{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: -webkit-flex;
    display: flex;
}
.body_test_info_button div{
    float: left;
    width: .6rem;
    height: .33rem;
    line-height: .33rem;
    text-align: center;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    font-size: 0.16rem;
    cursor: pointer;
}
.body_test_info_button div:last-child{
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
    margin-left: 0.15rem;
}
/*****************解剖结构******************/
.modal_anatomy{
    width: 100%;
    height: 100%;
    background: #105a82;
    display: none;
}
.anatomy_text,.anatomy_test_text,.system_test_text{
    position: absolute;
    left: 50%;
    top: .4rem;
    transform: translateX(-50%);
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    font-size: .24rem;
    padding: .1rem .11rem .13rem .15rem;
}
.anatomy_title{
    margin-bottom: .16rem;
    width: 9.6rem;
}
.anatomy_info_icon{
    font-size: .16rem;
    position: absolute;
    top: 0;
    left: calc(50% + 2.08rem);
    transform: translateX(-50%);
    cursor: pointer;
}
.anatomy_info_icon span{
    float: left;
}
.anatomy_info_icon:after{
    display: block;
    content: "";
    clear: both;
}
.anatomy_info_icon span:first-child{
    display: inline-block;
    width: .29rem;
    height: .35rem;
    background: url("../../amphioxus/img/anatomy/info.png") no-repeat;
    background-size: 100% 100%;
    margin-top: -.07rem;
}
.anatomy_show{
    position: absolute;
    left: 50%;
    top: 1.13rem;
    transform: translateX(-50%);
    font-size: .16rem;
    color: #ffffff;
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    text-align: center;
    z-index: 10;
    display: none;
}
.anatomy_img_parent{
    display: flex;
    justify-content: center;
}
.anatomy_img_parent:after{
    display: block;
    content: "";
    clear: both;
}
.anatomy_img_parent>div{
    float: left;
}
.anatomy_img_container{
    max-width: 9.6rem;
    overflow: hidden;
}
.anatomy_img_container ul{
    display: flex;
    transition: margin-left .5s linear;
}
.anatomy_img_container ul:after{
    display: block;
    content: "";
    clear: both;
}
.anatomy_img_container ul li{
    float: left;
    margin: 0 .1rem;
    position: relative;
}
.anatomy_img_left,.anatomy_img_right{
    font-size: .7rem;
    line-height: .7rem;
    cursor: pointer;
    height: 0.7rem;
    color: #fff;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}
.anatomy_img_left{
    left: -.7rem;
}
.anatomy_img_right{
    right: -.7rem;
}
.anatomy_img{
    width: 3rem;
    height: 3rem;
    background-size: 100% 100%;
    margin: 0 auto;
    position: relative;
}
.anatomy_img_text{
    margin-top: 0.1rem;
    font-size: 0.2rem;
    color: rgba(232, 187, 123,1);
}
.anatomy_img_button{
    width: .35rem;
    height: .35rem;
    position: absolute;
    top: 0.1rem;
    right: .1rem;
    background-image: url("../../amphioxus/img/anatomy/scale2.png");
    background-size: 100% 100%;
    cursor: pointer;
}
.anatomy_info{
    position: absolute;
    top: 0.36rem;
    left: 50%;
    transform: translateX(-50%);
    background: #9bd9f7;
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 1px 0px 0px rgba(7,66,133,1),0px 1px 0px rgba(7,66,133,1), -1px 0px 0px rgba(7,66,133,1),0px -1px 0px rgba(7,66,133,1),2px 0px 0px rgba(7,66,133,1),0px 2px 0px rgba(7,66,133,1), -2px 0px 0px rgba(7,66,133,1),0px -2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    font-size: .18rem;
    padding: .19rem .36rem;
    text-align: left;
    width: 6rem;
    display: none;
    z-index: 10;
}
.anatomy_info_title{
    border-bottom: 1px solid #006192;
    padding-bottom: 8px;
    color: #ffffff;
}
.anatomy_info_content{
    padding-top: 8px;
    color: #031e3c;
    text-shadow: none;
}
.redHot{
    width: 128px;
    height: 128px;
    background-image: url(../../amphioxus/img/anatomy/red.png);
    animation: move 1s steps(25) infinite;
    -webkit-animation: move 1s steps(25) infinite;
    position: absolute;
    top: 2.7rem;
    left: 1.2rem;
    transform: translate(-50%,-50%) scale(.4);
    cursor: pointer;
}
.blueHot{
    width: 128px;
    height: 128px;
    background-image: url(../../amphioxus/img/anatomy/blue.png);
    animation: move 1s steps(25) infinite;
    -webkit-animation: move 1s steps(25) infinite;
    position: absolute;
    top: 1rem;
    left: 1.6rem;
    transform: translate(-50%,-50%) scale(.4);
    cursor: pointer;
}
.greenHot{
    width: 128px;
    height: 128px;
    background-image: url(../../amphioxus/img/anatomy/green.png);
    animation: move 1s steps(25) infinite;
    -webkit-animation: move 1s steps(25) infinite;
    position: absolute;
    top: 1.5rem;
    left: 1.7rem;
    transform: translate(-50%,-50%) scale(.4);
    cursor: pointer;
}
@keyframes move
{
    0% {background-position:0 0;}
    100% {background-position:0 -3200px;}
}
@-webkit-keyframes move
{
    0% {background-position:0 0;}
    100% {background-position:0 -3200px;}
}
.anatomy_cut{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 6rem;
}
.anatomy_cut_img{
    width: 12rem;
    height: 1.3rem;
    background-image: url("../img/anatomy/fish1.png");
    background-size: 100% 100%;
}
.anatomy_cut_icon{
    position: absolute;
    top: -.5rem;
    left: 0;
}
.anatomy_cut_text{
    position: absolute;
    font-size: 0.16rem;
    color: #ffffff;
    top: -.3rem;
    white-space: nowrap;
}
.anatomy_cut_circle{
    border-radius: 50%;
    width: .24rem;
    height: .24rem;
    background: rgba(255,255,255,.8);
}
.anatomy_cut_icon.selected .anatomy_cut_circle{
    background: rgba(232, 187, 123, .8);
}
.anatomy_cut_triangle{
    position: absolute;
    top: 0.18rem;
    left: .02rem;
    border: .1rem solid transparent;
    border-top-color: #fff;
}
.anatomy_cut_icon.selected .anatomy_cut_triangle{
    border-top-color: #FFE8BB7B;
}
.anatomy_cut_line{
    height: 2rem;
    border-left:1px dashed rgba(255,255,255,1);
    margin-left: .12rem;
}
.anatomy_cut_icon.selected .anatomy_cut_line{
    border-left:1px dashed #FFE8BB7B;
}
/*******************躯体结构测试********************/
.modal_anatomy_test{
    width: 100%;
    height: 100%;
    background: #105a82;
    display: none;
}
.anatomy_test_img{
    position: absolute;
    left: 50%;
    top: 1.13rem;
    transform: translateX(-50%);
    width: 3rem;
    height: 3rem;
    background-image: url("../img/anatomy/1.png");
    background-size: 100% 100%;
}
.anatomy_test_cut{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 6rem;
}
.anatomy_test_cut_img{
    width: 12rem;
    height: 1.3rem;
    background-image: url("../img/anatomy/fish1.png");
    background-size: 100% 100%;
}
.anatomy_test_cut .anatomy_cut_icon{
    position: absolute;
    top: -.5rem;
    left: 0;
    cursor: pointer;
}
.anatomy_cut_circle{
    border-radius: 50%;
    width: .24rem;
    height: .24rem;
    background: rgba(255,255,255,.8);
}
.anatomy_cut_icon.selected .anatomy_cut_circle{
    background: rgba(232, 187, 123, .8);
}
.anatomy_cut_triangle{
    position: absolute;
    top: 0.18rem;
    left: .02rem;
    border: .1rem solid transparent;
    border-top-color: #fff;
}
.anatomy_cut_icon.selected .anatomy_cut_triangle{
    border-top-color: #FFE8BB7B;
}
.anatomy_cut_line{
    height: 2rem;
    border-left:1px dashed rgba(255,255,255,1);
    margin-left: .12rem;
}
.anatomy_cut_icon.selected .anatomy_cut_line{
    border-left:1px dashed #FFE8BB7B;
}
.anatomy_test_next{
    position: absolute;
    bottom: 42px;
    left: 50%;
    transform: translateX(-50%);
    width: 1.12rem;
    height: .38rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    border-radius: 6px;
    font-size: .18rem;
    font-family: MicrosoftYaHei;
    font-weight: 400;
    color: rgba(255,255,255,1);
    line-height: .38rem;
    text-shadow: 2px 2px 1px #3a230a;
    text-align: center;
    cursor: pointer;
}
/***********系统演化***************/
.modal_system{
    width: 100%;
    height: 100%;
    background: #105a82;
    display: none;
}
.system_fish_img{
    width: 9.8rem;
    height: 1.45rem;
    /*background-image: url("../img/anatomy/F_XH.png");*/
    background-size: 100% 100%;
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: none;
}
.system_insect_img{
    position: absolute;
    top: 4.2rem;
    left: 50%;
    transform: translateX(0%);
    width: 3rem;
    height: 3rem;
    background-size: 100% 100%;
    display: none;
}
.system_button{
    width: .35rem;
    height: .35rem;
    position: absolute;
    top: 0;
    right: 0;
    background-image: url("../../amphioxus/img/anatomy/scale.png");
    background-size: 100% 100%;
    cursor: pointer;
}
.system_people_img{
    position: absolute;
    top: 3.2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 3.5rem;
    height: 3.5rem;
    background-size: 100% 100%;
}
.system_text{
    position: absolute;
    top: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    padding: .13rem .3rem .17rem .37rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
    text-align: center;
    font-size: 0.16rem;
}
/**************系统演化测试****************/
.modal_system_test{
    width: 100%;
    height: 100%;
    background: #105a82;
    display: none;
}
.system_test_next{
    position: absolute;
    bottom: 42px;
    left: 50%;
    transform: translateX(-50%);
    width: 1.12rem;
    height: .38rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    border-radius: 6px;
    font-size: .18rem;
    font-family: MicrosoftYaHei;
    font-weight: 400;
    color: rgba(255,255,255,1);
    line-height: .38rem;
    text-shadow: 2px 2px 1px #3a230a;
    text-align: center;
    cursor: pointer;
}
.system_test_people{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-100%,-50%);
    width: 6rem;
    height: 6rem;
    background-image: url("../img/anatomy/p_pf.png");
    background-size: 100% 100%;
}
.system_test_fish{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(0%,-50%);
    width: 6rem;
    height: 6rem;
}
/*****************退出测试********************/
.modal_close{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: rgba(0,0,0,.8);
    z-index: 10;
    display: none;
}
.modal_close_container{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.modal_close_info{
    width: 3.42rem;
    height: .92rem;
    background: rgba(238,248,252,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: 0.28rem;
    border-radius: 6px;
    line-height: 48px;
    padding: .03rem .06rem .04rem .06rem;
    text-align: center;
    box-sizing: border-box;
    margin: 0 auto;
    margin-bottom: 30px;
}
.modal_close_info div{
    width: 3.3rem;
    height: .85rem;
    line-height: .85rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 2px 2px 1px rgba(7,66,133,1);
    border-radius: 6px;
    color: #ffffff;
}
.modal_close_button{
    display: -webkit-flex;
    display: flex;
}
.modal_close_button:after{
    display: block;
    content: "";
    clear: both;
}
.modal_close_button>div{
    float: left;
    width: 1.46rem;
    height: .55rem;
    background: rgba(255,246,216,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: .24rem;
    border-radius: 6px;
    line-height: 48px;
    padding: .03rem .06rem .04rem .05rem;
    text-align: center;
    box-sizing: border-box;
    margin: 0 auto;
    margin-bottom: 30px;
    cursor: pointer;
}
.modal_close_button>div>div{
    height: .48rem;
    line-height: .48rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
    border-radius: 6px;
    color: #ffffff;
}
/******************分数模块****************/
.modal_score{
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    bottom: 0;
    font-size: .16rem;
    background: rgba(0,0,0,.8);
    z-index: 100;
    display: none;
}
.modal_score_container{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.score{
    width: 4.02rem;
    height: 2.82rem;
    background: linear-gradient(0deg,rgba(99,169,206,1),rgba(131,192,220,1));
    box-shadow: 0px 1px 5px 0px rgba(7,66,133,0.5), 0px 2px 1px 0px rgba(7,66,133,1);
    text-shadow: 0px 2px 0px rgba(7,66,133,1);
    color: #fff;
    border-radius: 6px;
    text-align: center;
    box-sizing: border-box;
    padding: 20px;
}
.score_info{
    font-size: .18rem;
    padding: .2rem 0;
    border-bottom: 1px solid #006192;
}
.score_result{
    font-size: .3rem;
    margin: .3rem 0;
}
.score_num{
    padding: 0.06rem .33rem .06rem .28rem;
    background: #006192;
    border-radius: 15px;
    display: inline-block;
}
.score_sure{
    width: 1.46rem;
    height: .56rem;
    background: rgba(255,246,216,1);
    box-shadow: 0px 1px 0px 1px rgba(0, 0, 0, 0.15);
    font-size: 18px;
    border-radius: 6px;
    line-height: 48px;
    padding: 0.03rem .05rem 0.04rem .05rem;
    text-align: center;
    box-sizing: border-box;
    cursor: pointer;
    margin: 0 auto;
    margin-top: .4rem;
}
.score_sure_text{
    width: 1.36rem;
    height: .48rem;
    line-height: .50rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    text-shadow: 2px 2px 1px #3a230a;
    border-radius: 6px;
    color: #ffffff;
}
/***********大图展示***********/
.modal_bigImg{
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: #087ba2;
    z-index: 200;
    display: none;
}
.modal_bigImg_body{
    width: 8rem;
    height: 8rem;
    background-size: 100% 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.modal_bigImg_close{
    position: absolute;
    top: 50px;
    right: 50px;
    color: #000000;
    font-size: .6rem;
    cursor: pointer;
}
/*鼠标提示*/
.info_modal{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,.5);
    z-index: 200;
}
.info_img{
    width: 328px;
    height: 439px;
    border-radius: 6px;
    background-color: rgba(0,0,0,.7);
    background-image: url(../../amphioxus/img/anatomy/mouse_info.png);
    border: 2px solid #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.info_close{
    width: 44px;
    height: 44px;
    background-image: url(../../amphioxus/img/anatomy/ico03.png);
    position: absolute;
    top: -50px;
    right: -50px;
    cursor: pointer;
}
/***************知识帮助*****************/
.help_knowledge_icon{
    width: .69rem;
    height: .80rem;
    background: url("../../amphioxus/img/anatomy/knowledge_icon.png") no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 100;
    cursor: pointer;
}
.help_knowledge{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    background: rgba(0,0,0,0);
    display: none;
}
.knowledge_container{
    width: 9.86rem;
    height: 7.42rem;
    border-radius: 10px;
    background: #f4f4f4;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.knowledge_title{
    width: 100%;
    height: .64rem;
    border-bottom: 2px solid #087ba2;
    font-size: .2rem;
    color: #2a2a2a;
    text-align: center;
    line-height: .64rem;
}
.knowledge_body{
    font-size: .18rem;
    padding: .3rem .8rem;
}
.knowledge_text_parent{
    height: 5.4rem;
    overflow: auto;
}
.knowledge_text li{
    margin-bottom: .36rem;
}
.knowledge_text li>div{
    float: left;
}
.knowledge_text li:after{
    display: block;
    content: "";
    clear: both;
}
.knowledge_text .knowledge_left{
    color: #ffffff;
    background: #999999;
    width: .28rem;
    height: .28rem;
    line-height: .28rem;
    text-align: center;
    border-radius: 10px;
}
.knowledge_text .knowledge_right{
    color: #2a2a2a;
    width: calc(100% - .43rem);
    margin-left: .15rem;
    line-height: .3rem;
}
.knowledge_img_text p:last-child{
    text-indent:2em
}
.knowledge_img_title{
    text-align: center;
}
.knowledge_img_url{
    width: 100%;
    height: 1.6rem;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    margin: 0 auto;
}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/xh.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/kl.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(9){background-image: url("../../amphioxus/img/anatomy/knowledge/y.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(12){background-image: url("../../amphioxus/img/anatomy/knowledge/sd.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(15){background-image: url("../../amphioxus/img/anatomy/knowledge/zc.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(18){background-image: url("../../amphioxus/img/anatomy/knowledge/gmn.jpg");}
.knowledge_text li:nth-child(1) .knowledge_img_url:nth-child(21){background-image: url("../../amphioxus/img/anatomy/knowledge/hc.jpg");}

.knowledge_text li:nth-child(2) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/hx.jpg");}
.knowledge_text li:nth-child(2) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/ys.jpg");}
.knowledge_text li:nth-child(2) .knowledge_img_url:nth-child(9){background-image: url("../../amphioxus/img/anatomy/knowledge/pf.jpg");}

.knowledge_text li:nth-child(3) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/sz.jpg");}
.knowledge_text li:nth-child(3) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/szx.jpg");}

.knowledge_text li:nth-child(4) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/yd.jpg");}
.knowledge_text li:nth-child(4) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/jj.jpg");}
.knowledge_text li:nth-child(4) .knowledge_img_url:nth-child(9){background-image: url("../../amphioxus/img/anatomy/knowledge/js.jpg");}

.knowledge_text li:nth-child(5) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/sj.jpg");}
.knowledge_text li:nth-child(5) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/np.jpg");}
.knowledge_text li:nth-child(5) .knowledge_img_url:nth-child(9){background-image: url("../../amphioxus/img/anatomy/knowledge/sjg.jpg");}

.knowledge_text li:nth-child(6) .knowledge_img_url:nth-child(3){background-image: url("../../amphioxus/img/anatomy/knowledge/nfm.jpg");}
.knowledge_text li:nth-child(6) .knowledge_img_url:nth-child(6){background-image: url("../../amphioxus/img/anatomy/knowledge/nz.jpg");}
.knowledge_close{
    margin: .3rem auto 0 auto;
    width: 1.12rem;
    height: .38rem;
    line-height: .38rem;
    background: linear-gradient(0deg,rgba(219,175,112,1),rgba(237,203,148,1));
    box-shadow: 0px 1px 5px 0px rgba(193,172,114,0.5), 0px 2px 1px 0px rgba(173,122,50,1);
    color: rgba(255,255,255,1);
    text-shadow: 0px 2px 0px #3a230a;
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
}