body {
      margin: 0;
      font-family: sans-serif;
}
.header {
      position: fixed;
      top: 0;
      z-index: 10;
      margin-top: 30px;
      margin-left: 30px;
}
.header .icon_logo{
      width: 100px;
}
.section{
      width: 100%;
      height: 100%;
      
}
/* 头部 */
.modal{
      width: 100%;
      height: 100%;
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.2);
      /* z-index: 10000; */
      /* background-color: red; */
}
.background{
      width: 100%;
      height: 100%;
      /* background: url('../images/index/1.png') no-repeat;
      background-size: 100% 100%; */
      /* display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center; */
      color: #fff;
      /* text-align: center; */
      position: relative;
      margin: 0 auto;
}
.background .video_text{
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;
      z-index: 20;
}
.background .title{
      font-size: 36px;
      font-weight: bold;
      margin-bottom: 20px;
}
 .background .text{
      font-size: 30px;
}
 .background .qr_code {
      position: relative;
}
 .background .qr_code .code_text{
     width: 200px;
     margin-top: 20px;
      cursor: pointer;
}
 .background .qr_code .code_text:hover  + .qr_code_img{
      display: block;
      position: absolute;
      top: 70px;
      left: 50%;
      transform: translateX(-50%);
      width: 150px;
}
/*  核心业务*/
.business{
     width: 100%;
      max-width: 1460px;
      height: 400px;
      margin: 0 auto;
      position: relative;
}
 .business .business_left{
      
}
 .business .business_left_top .title{
      font-size: 36px;
      color: #333;
      /* font-weight: bold; */
      /* margin-bottom: 20px; */
}
 .business .business_left_top .text{
      font-size: 24px;
      color: #999999;
      /* font-weight: bold; */
      /* margin-bottom: 20px; */
}
.business .business_left_top,  .business .business_right_top{
      margin-bottom: 90px;
}
/* #sliderWrapper{
       width: 100%;
      max-width: 800px;
      height: 400px;
      margin: 0 auto;
} */
.business_icon{
      width: 400px;
      height: 400px;
      margin: 0 auto;
      margin-left: 60px;
      margin-right: 60px;
      margin-top: 50px;
}
.business .txt{
      font-size: 22px;
      line-height: 36px;
      color: #333;
}
.business .business_right{

}
#slideControls{
      /* position: relative; */
}
#innerSlider .fp-section.fp-table, #innerSlider .fp-slide.fp-table{
      table-layout:auto;
}
/* 核心业务 轮播箭头样式 */
.fp-prev,.fp-next{
      display: none;
}
.business  #nextSlide, .business  #prevSlide{
      width: 26px;
      height: 26px;
      background-size: 40px;
      background-size: 26px 26px;
      background-repeat: no-repeat;
      background-position: center;
      position: absolute;
      top: 34%;
      cursor: pointer;
      /* transform: translateY(-50%); */
}
.business  #nextSlide{
      background-image:url('../images/index/arrow_right.png');
      right: 0%;
}
.business  #prevSlide{
      background-image: url('../images/index/arrow_left.png');
      left: 93%;
}

/* 核心技术 */
.technology_icon{
      width: 500px;
}
.swiper-container{
      overflow: visible;
}
/* 核心技术 轮播箭头样式 */
 .business  .swiper-button-next,.business  .swiper-button-prev {
      width: 26px;
      height: 26px;
      background-size: 40px;
      background-size: 26px 26px;
      background-repeat: no-repeat;
      background-position: center;
      top: 32%;
      /* transform: translateY(-50%); */
}

.business  .swiper-button-next {
      background-image:url('../images/index/arrow_right.png');
      right: 0%; 
}

.business  .swiper-button-prev {
      background-image: url('../images/index/arrow_left.png');
      left: 93%;
}