.math-book {
  width: 100%;
  height: 100%;
  font-family: "宋体", SimSun, sans-serif;
  mn{
    font-size:1em;
    }
    mi{
    font-size:1em;
    }
    
        ul {
            list-style-type:none;
        }
    
        li {
            list-style-type:none;
        }
    
    div.bodystyle {
      font-family:'FZLTXIHJW',"Times New Roman";
      font-size:18px;
      text-align:justify;
      margin:5%;
      line-height:30px;
    }
    .info {
        position: relative;
    }
    
    
    .em_circle {
      text-decoration:dashed;
    }
    
    .fieldset {
      background: #E7F4FC;
      padding:1em;
      border-radius: 5px;
      border-radius: 0.6em;
    }
    
    .inline{
    height:1.2em;
      vertical-align:top;
    
    }
    .inline2{
    height:2.9em;
    margin-top:2em;
    margin-bottom:-0.4em;
    }
    .imz{
         height:96%;
         text-align:center;
    
    
    }
    
    .note{
    font-size: 0.85em;
    }
    
    
    .block{
      font-family:"STKaiti";
    }
    
    .block1
    {
      font-family:"STKaiti";
      text-align:right;
      margin-left:0%;
      margin-right:2em;
    }
    
    .block2
    {
      font-family:"STKaiti";
      text-indent:0em;
      text-align:center;
      margin-left:0%;
      margin-right:0%;
    }
    
    .block3
    {
      font-family:"STKaiti";
      text-align:left;
      text-indent:0em;
      margin-left:0%;
      margin-right:0%;
    
    }
    
    .img{color:#146Eb4;
    text-align: center;
    font-size:0.85em;
    text-indent: 0em;
    }
    
    body {
      font-family:"Times New Roman", "����";
    }
    
    
    
    
    p
    {
      margin-top: 0.5em;
      text-indent: 2em;
      line-height: 1.5em;
    }
    .cover {
      width:100%;
      padding:0px;
    }
    .center {
      text-align: center;
      margin-left: 0%;
      margin-right: 0%;
      text-indent: 0em
    }
    .left1 {
      text-indent: 1em;
      text-align: left;
    }
    .left {
      text-indent: 0em;
      margin-left: 0%;
      margin-right: 0%;
    }
    .right {
      text-align: right;
      margin-left: 0%;
      margin-right: 0%;
    }
    .quote {
      margin-top: 0%;
      margin-bottom: 0%;
      margin-left: 1em;
      margin-right: 1em;
      text-align: justify;
      font-family:"Times New Roman", "����";
    }
    h1 {
      color: #9f052f;
      font-family:"Times New Roman", "����";
      text-align: center;
      font-size:1.5em;
      margin-top: 1em;
      margin-bottom: 1em;
      font-family:"Times New Roman", "����";
    }
    
    h2 {
      font-family:"Times New Roman", "����";
      font-weight:bold;
      font-size:1.3em;
      margin-top: 1em;
      margin-bottom: 0.2em;
    }
    h3 {
    
      font-family:"Times New Roman", "����";
      text-align: left;
      font-size:1.2em;
      margin-top: 1em;
      margin-bottom: 0.2em;
    }
    h4 {
    
      font-family:"Times New Roman", "����";
      color: #00A1E9;
      text-align: left;
      font-weight:bold;
      font-size:medium;
      margin-top: 1em;
      margin-bottom: 0.2em;
    }
    h5 {
    
      font-family:"Times New Roman", "����";
      text-align: left;
      font-weight:bold;
      font-size:small;
      margin-top: 0.8em;
      margin-bottom: 0.2em;
    }
    h6 {
    
      font-family:"Times New Roman", "����";
      text-align: left;
      font-weight:bold;
      font-size:x-small;
      margin-top: 1em;
      margin-bottom: 0.2em;
    }
    .u { 
    
          text-decoration: underline; }
    
    .img-0{	
    width:100%;
    }
    .img-a{	
      width:90%;
    }
    .img-b{
      width:80%;
    }
    .img-c{	
      width:70%;
    }
    .img-d{	
      width:60%;
    }
    .img-e{	
      width:50%;
    }
    .img-f{	
      width:40%;
    }
    .img-g{	
      width:30%;
    }
    .img-h{	
      width:20%;
    }
    .img-i{       
      width:10%;
    }
    .img-j{        
      width:5%;
    }
    .img-n{        
      height:1em;
    }
    
    .img-gn{	
      height:3em;
    }
    .img-gn1{	
      height:2.2em;
    }
    .img-gn2{
      height:1.9em;
    }
    .border-1{
      border: 1px solid #E6E6FA;
      background-color:#E6E6FA;
      border-radius: 0.6em;
      padding-top: 30%;
      padding-bottom: 70%;
      margin: 20% 10% 20% 10%;
    }
    .border-2{
      border: 1px solid #FFF5EE;
      background-color:#FFF5EE;
      border-radius: 0.6em;
      padding-top: 30%;
      padding-bottom: 70%;
      margin: 20% 10% 20% 10%;
    }
    /*�»���*/
    .em_dot {
      -webkit-text-emphasis-style:dot;
         -moz-text-emphasis-style:dot;
          -ms-text-emphasis-style:dot;
              text-emphasis-style:dot;
      -webkit-text-emphasis-position:under;
         -moz-text-emphasis-position:under;
          -ms-text-emphasis-position:under;
              text-emphasis-position:under;
    }
    blockquote.kindle-cn-blockquote {
      background: #f9f9f9;
      border-left: 0.5em solid #ccc;
      margin: 1.5em;
      padding: 1em;
      text-indent:2em;
      line-height:1.5em;
    }
    div.bj{	background-color:#D3EDFA;
      padding: 0.3em;
      margin-top:1em;
      margin-bottom:1em;
    }
    .hs
    {
      font-family:"Times New Roman", "����";
      color:red;
    }
    
    
    .zt-ls{
      color: #00A1E9;
    }
    .zt-ls1{
      color: #00A1E9;
      font-weight:bold;
      font-size:0.9em;
    }
    
    .zt-ls2{
      font-family:'FZLTXIHJW',"Times New Roman";
      color: #00A1E9;
      font-weight:bold;
    }
    
    .fontsz1
    {
      color: #00A1E9;
      font-size:0.8em;
    }
    .fontsz2
    {
      color: #00A1E9;
      font-size:0.6em;
    }
    
    
    div.bk-hzjl{
      border:2px solid #00A1E9;
      background:#F6FBFF;
      border-radius: 0 0 0 5px;
      padding:15px;
      margin-bottom:2em;
      margin-top:2em;
      border-radius:0em 0em 2em 0em;
    }
    
    div.bj1-hzjl{
      padding:0.01em 1em 0.01em 1em;
      margin-top:-2.4em;
      margin-left:-0.5em;
      margin-right:-1em;
    }
    
    div.bk{
      border:2px solid #00A1E9;
      padding:0.8em;
      margin-bottom:2em;
      margin-top:2em;
      box-shadow: inset -0.5em -0.5em 0 0 #E0F2FC;
    }
    
    div.bj1{
      padding:0.01em 1em 0.01em 1em;
      margin-top:-2.6em;
      margin-left:-0.5em;
      margin-right:-1em;
    }
    
    
    p.bj2{
      background-color:#81CFF5;
      color:#FFFFFF;
      display: inline-block;
      padding:1px;
      font-size: 1.1em;
      padding: 3px 10px 3px 10px;
      font-weight: bold;
      box-shadow: -0.3em -0.3em 0px 0px #2FBDEF; 
      margin: 0;
      text-indent: 0em;
      margin-top:1em;
      margin-bottom:1em;
    }
    
    .bj-sp{
      background-color:#FFFFFF;
      color:#53C3F1;
      padding:0.3em 1em 0.3em 1em;
      margin-top:0em;
      margin-left:-3em;
    }
    
    .fieldset1 {
      border:2px solid #33BCF0;
      padding:1em;
      border-radius: 5px;
      border-radius: 0.6em;
    }

  // 自定义
  .page-box {
    position: relative;
    box-sizing: border-box;
    min-height: 1150px;
    margin-bottom: 20px;
    box-shadow: 0 3px 6px 1px #00000029;
    background-color: #fff;
  }
  .book {
    margin: 0 auto;
    width: 816px;
  }

  .text-center {
    text-align: center;
  }
  .tl {
    text-align: left !important;
  }
  .tl-ri {
    text-align: right !important;
  }
  .tl-ju {
    text-align: justify;
  }
  .ti2 {
    text-indent: 2em !important;
  }
  .lineInput {
    width: 90%;
    font-size: 14px;
    color: #666;
    border: none;
    border-bottom: 1px solid #15c0f2;
    outline: none;
    background: transparent;
  }
  .textarea-border {
    border-color: #15c0f2;
  }
  .completion-input {
    width: 64px !important;
    color: #000 !important;
  }
  .judge-input {
    width: 20px;
    font-size: 14px;
    color: #000;
    border: none;
    border: 0;
    outline: none;
    background: transparent;
  }

  .sport-text {
    font-size: 20px;
    line-height: 40px;
  }
  .img-text {
    color: #000;
    text-align: center;
    font-size: 16px;
    text-indent: 0em;
    font-weight: 700;
  }
  .text-size {
    font-size: 20px;
  }
  .fl {
    display: flex;
  }
  .fl-evenly {
    justify-content: space-evenly;
  }
  .fl-around {
    justify-content: space-around;
  }
  .fl-between {
    justify-content: space-between;
  }
  .ju-cn {
    justify-content: center;
  }
  .fl-di {
    flex-direction: column;
  }
  .fl-cn {
    align-items: center;
  }
  .al-end {
    align-items: flex-end;
  }
  .fz-18 {
    font-size: 18px;
  }
  .fz-16 {
    font-size: 16px;
  }
  .fz-14 {
    font-size: 14px;
  }
  .fz-12 {
    font-size: 12px;
  }
  .suspend-title {
    white-space: nowrap;
    min-width: 120px;
    position: absolute;
    top: -27px;
    left: -15px;
    background-color: #32a59e;
    height: 34px;
    line-height: 34px;
    border-radius: 13px;
    color: #fff;
    text-align: center;
  }
  .m0 {
    margin: 0;
  }
  .t0 {
    text-indent: 0;
  }
  .t2 {
    text-indent: 2em;
  }
  .m0-t0 {
    margin: 0;
    text-indent: 0 !important;
  }

  .learn-btn img {
    cursor: pointer;
    height: 30px;
    // width: 25px;
  }

  .lh {
    line-height: 1.5em;
    margin-top: 0.5em;
  }
  .page-box {
    box-sizing: border-box;
    min-height: 1150px ;
    margin-bottom: 20px;
    box-shadow: 0 3px 6px 1px #00000029;
    background-color: #fff;
  }
  .ds-bl {
    display: block;
  }
  ul {
    list-style: none;
    padding: 0;
  }

  .lh2 {
    line-height: 2em;
  }
  // 奇数页页眉
  .page-header-box {
    margin: 0;
    margin-bottom: 20px;
    width: 100%;
    height: 104px;
    display: flex;
    li:first-child {
      height: 100%;
      width: 88%;
      display: flex;
      align-items: flex-end;
      P {
        margin: 0 !important;
        width: 100%;
        height: 24px;
        background-color: #97a4d3;
        text-align: right;
        padding-right: 20px;
        color: #fff;
      }
    }
    li:last-child {
      margin-left: 20px;
      p {
        margin: 0 !important;
        height: 100%;
        padding:0 4px;
        width: min-content;
        border: 1px solid #7b8cc5; 
        text-indent: 0em;
        display: flex;
        align-items: flex-end;
        justify-content: center;
      }
    }
  }
  .page-header-odd {
    margin: 0;
    margin-bottom: 20px;
    width: 100%;
    height: 104px;
    display: flex;
    justify-content: space-between;
    li:first-child {
      border: 1px solid #7b8cc5;
      width: 15%;
      height: 24px;
      text-align: right;
      padding-right: 4px;
      box-sizing: border-box;
    }
    li:nth-child(2) {
      padding: 0 4px;
      min-width:132px;
      height: 24px;
      border: 1px solid #7b8cc5;
      text-align: center;
      box-sizing: border-box;
      color: #5f7abc;
      font-weight: bold;
    }
    li:last-child {
      width: 64%;
      height: 24px;
      background-color: #97a4d3;
    }
  }
  .fw-b {
    font-weight: bold;
  }
  .italic {
    font-style: italic;
  }
  .mb-0 {
    margin-bottom: 0;
  }
  .mb-20 {
    margin: 20px 0 !important;
  }
  .mb-40 {
    margin-bottom: 40px !important;
  }
  .mt-20 {
    margin-top: 20px;
  }
  .mt-40 {
    margin-top: 40px;
  }
  .mb-80 {
    margin-bottom: 80px !important;
  }
  .mr-20 {
    margin-right: 20px;
  }
  .ml-30 {
    margin-left: 30px;
  }
  .table-box {
    width: 94%;
    font-family: "STKaiti";
    line-height: 1.5em;
  }
  .dl-bl {
    display: inline-block;
  }
  .mt-10 {
    margin-top: 10px;
  }
  .w100 {
    width: 100% !important;
  }
  .primary-color {
    color: #15c0f2;
  }
  .video-border {
    border: 1px solid #15c0f2;
    border-radius: 10px;
  }
  .fm-st {
    font-family: "STKaiti";
  }
  .btn {
    cursor: pointer;
    width: 23px;
    border-radius: 5px;
    margin-left: 5px;
  }
  .table-br-color {
    border-color: #e9e9e9;
  }
  .span-border {
    margin-left: -13px;
    display: block;
    width: 104%;
    margin-top: 20px;
    border-bottom: 2px dotted #1eb9ee;
    border-radius: 10px;
  }
  .wh-no {
    white-space: nowrap;
  }
  .annotation-border {
    margin: 20px 0;
    width: 150px;
    border: 1px solid #00aeef;
  }
  .word-break-all {
    word-break: break-all;
  }
  .textarea-text {
    font-size: 16px;
    font-family: "STKaiti";
  }
  .mt-20 {
    margin-top: 20px;
  }
  .mt-40 {
    margin-top: 40px;
  }
  .ta-br {
    border-color: #c0c4cc;
  }
  textarea:focus {
    border-color: #15c0f2;
    outline: none;
  }
  .cl-66 {
    color: #666;
  }

  .svg-btn {
    margin-left: 5px;
    cursor: pointer;
    display: flex;
    padding: 3px;
    fill: #fff;
    border: 1px solid #008bff;
    border-radius: 5px;
    background-color: #008bff;
    &:hover{
      fill: #008bff;
      background-color: #fff;
    }
  }
  a {
    cursor: default;
  }
  ul {
    list-style: none;
  }
  li {
    list-style: none !important;
  }
  .collect-btn {
    cursor: pointer;
    width: 16px;
    height: 16px;
    margin-left: 10px;
  }
  // 显示答案按钮
  .btn-box {
    margin-left: 5px;
    cursor: pointer;
    text-indent: 0;
    display: inline-block;
    border:1px solid #00a1e9;
    height: 22px;
    padding: 2px;
    background-color:#00a1e9 ;
    border-radius: 5px;
    svg {
      fill: #fff;
    }
    &:hover {
      background-color: #fff;
      svg {
        fill:#00a1e9 ;
      }
    }
  }
}

/* 媒体查询做基础响应式布局 */
@media (max-width: 430px) {
  .ans-dance  {
    .page-box {
      min-height: 750px;
    }
    .pg-mh {
      min-height: 815px;
    }
  }
}
@media (max-width: 660px) {
  .math-book {
    /* 分页padding */
    .page-padding {
      padding: 104px 20px;
    }
    .padding-96 {
      padding: 0 20px 40px 20px;
    }
    /* video大小 */
    .video-box {
      max-width: 260px;
    }
    .audio-box {
      margin-top: 20px;
      flex-wrap: wrap;
      li {
        width: 100%;
      }
      li:nth-child(2) {
        margin-top: 10px;
      }
    }
  }
}
@media (min-width: 660px) {
  .math-book{
    .page-padding {
      padding: 104px 96px;
    }
    .padding-96 {
      padding: 0 96px 104px 96px;
    }
    .video-box {
      max-width: 370px;
    }
    .audio-box {
      margin-top: 20px;
      flex-wrap: nowrap;
      li {
        width: 58%;
      }
      li:nth-child(2) {
        margin-left: 10px;
      }
    }
  }
}