.header {
    width: 100%;
    height: 652rem;
    background-image: url(../img/knowledgeBaseTopIng.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    /* margin-top: 103rem; */
}


.heaCon{
    margin-left: 58%;
    width: 40%;
    text-align: left;
    padding-top: 140rem;
}

.heaCon span{
    font-family:  Source Han Sans,arial, 宋体, sans-serif;
}


.heaCon>.heaCon1 {
    width: 100%;
    font-family: Source Han Sans;
    font-size: 44rem;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    padding-top: 12rem;
    margin-left:
    /* margin-left: 393rem; */
}

.heaCon>.heaCon2 {
    width: 100%;
    height: 181rem;
    font-family: Source Han Sans;
    font-size: 28rem;
    font-weight: normal;
    line-height: normal;
    /*! text-align: center; */
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    margin-top: 17rem;
    /* margin-left: 81rem; */
}

.heaCon>.heaCon3 {
    width: 100%; 
    opacity: 1;
    font-family: Source Han Sans;
    font-size: 34rem;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    /* margin-left: 196rem; */
    margin-top: 17rem;
    margin-bottom: 30rem;
}


.advantage {
    width: 100%;
    background-image: url(../img/knowledgeBasebgi.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.advTop {
    width: 100%;
    height: 140rem;
}

.advTit {
    font-family: Source Han Sans,arial, 宋体, sans-serif;
    font-size: 46rem;
    font-weight: bold;
    line-height: normal;
    text-align: center;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    margin: auto;
    padding-top: 42rem;
}


.advDetCon {
    width: 77%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    /* align-items: center; */
    margin: auto;
    padding-bottom: 30rem;
}

.advDetConItem {
    width: 29%;
    margin: 10rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.advDetConItem img {
    width: 80%;
    /*! height: 176px; */
    height: 100%;
}

.advDetConItemTit {
    font-family: Source Han Sans;
    font-size: 24rem;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    margin-top: 26rem;
    margin-bottom: 6rem;
}

.advDetConItemCon {
    width: 90%;
    font-family: 思源黑体;
    font-size: 20rem;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #FFFFFF;
    text-align: center;
    margin-top: 19rem;
}


.advantage2 {
    width: 100%;
}

.advTop2 {
    width: 100%;
    height: 120rem;
    border-bottom: 1rem solid #D8D8D8;
}

.advTit2 {
    width: 728rem;
    font-family: Source Han Sans;
    font-size: 46rem;
    font-weight: bold;
    line-height: normal;
    text-align: center;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #3D3D3D;
    margin: auto;
    padding-top: 42rem;
    padding-bottom: 15rem;
    border-bottom: 4rem solid #3D3D3D;
}


.advDetCon2 {
    width: 77%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    /* align-items: center; */
    margin: auto;
    margin-top: 42rem;
    padding-bottom: 62rem;
}

.advDetConItem2 {
    width: 25%;
    margin: 10rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.advDetConItem2 img {
    width: 153rem;
    height: 153rem;
}

.advDetConItemTit2 {
    font-family: Source Han Sans;
    font-size: 32rem;
    /* font-weight: bold; */
    line-height: normal;
    text-align: center;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #3D3D3D;
    margin-top: 26rem;
    margin-bottom: 6rem;
}

.advDetConItemCon2 {
    width: 90%;
    text-align: center;
    font-family: Source Han Sans;
    font-size: 20rem;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz"auto;
    font-feature-settings: "kern"on;
    color: #3D3D3D;
    margin-top: 25rem;
}

.floating-icon {
    width:76px;
    height:180px;
    border-radius:35px;
    position: fixed;
    right: 30px;
    bottom: 400px;
    background: linear-gradient(180deg, #64CDFE 36%, #51befe 97%);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    text-align: center;
  }
  
.text-box {
  font-family: 'Source Han Sans';
  font-size: 14px; 
  font-weight: bold;
  color: #FFFFFF;
}

.lijitiyan {
    padding-bottom: 5px;
    margin-bottom: 21px;
  }

.lijitiyan img{
    width:24px;
    height:24px;
  }

  .arrow-box-lijitiyan{
    display: none;
    position: absolute;
    right: 86px; 
    bottom: 35px;
    padding: 5px;
    background-color: #4cbbff;
    border: 1px solid #4cbbff;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.15); 
    width: 160px; 
    height:180px;
  }

.arrow-box-lijitiyan::before {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 10px;
    border-style: solid;
    border-color: transparent  transparent  transparent #4cbbff; 
  }

.shanwuzixun {
    padding-bottom: 7px;
    margin-top: 11px;
  }

.shanwuzixun img{
    width:24px;
    height:24px;
  }

.arrow-box-shanwuzixun {
    display: none;
    position: absolute;
    right: 86px; 
    bottom: -55px;
    padding: 5px;
    background-color: #4cbbff;
    border: 1px solid #4cbbff;
    border-radius: 8px;
    white-space: nowrap;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.15); 
    width: 160px; 
    height:206px;
  }
  
  .arrow-box-shanwuzixun::before {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    border-width: 10px;
    border-style: solid;
    border-color: transparent  transparent  transparent #4cbbff; 
  }

.arrow-item {
    font-family: 'Source Han Sans';
    font-size: 16px;
    color: #ffffff;
    padding: 12px 0;
  }
  
  .arrow-item:last-child {
    border-bottom: none; 
  }