#operational_services {
  background-color: #f8f8f8;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
}
#operational_services .ostbox1item {
  max-width: 1920px;
  display: flex;
  margin: 0 auto;
  width: 100%;
}
#operational_services .ostbox1item .banner {
  display: flex;
}
.ostboxitemswrapper {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.ostboxitemswrapper > header {
  width: 980px;
  display: flex;
}
.ostboxitemswrapper > header > h2 {
  font-weight: bold;
  font-size: 24px;
  color: #000000;
  line-height: 72px;
}
.ostboxitemswrapper .swiper_con {
  width: 1004px;
  margin-top: 50px;
  margin-bottom: 46px;
}
.ostboxitemswrapper .swiper_con .swiper-slide-active > img {
  display: none !important;
}
.ostboxitemswrapper .swiper_con .swiper-slide-active > img:nth-of-type(2) {
  display: flex !important;
}
.ostboxitemswrapper .swiper_con .swiper-slide {
  width: 251px;
  height: 276px;
  position: relative;
  display: flex;
}
.ostboxitemswrapper .swiper_con .swiper-slide:hover > img {
  display: none;
}
.ostboxitemswrapper .swiper_con .swiper-slide:hover > img:nth-of-type(2) {
  display: flex;
}
.ostboxitemswrapper .swiper_con .swiper-slide > img {
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.ostboxitemswrapper .swiper_con .swiper-slide > img:nth-of-type(2) {
  display: none;
}
.ostbox2item {
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  width: 980px;
  margin-bottom: 100px;
  align-items: center;
}
.ostbox2item .maincon {
  display: flex;
  flex-direction: column;
}
.ostbox2item .maincon .item {
  width: 100%;
  display: flex;
}
.ostbox3item {
  width: 1000px;
  position: relative;
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  margin-bottom: 100px;
  justify-content: end;
}
.ostbox3item .r {
  width: 549px;
  height: 479px;
  display: flex;
  overflow: hidden;
}
.ostbox3item .l {
  box-sizing: border-box;
  position: absolute;
  width: 567px;
  left: 0;
  top: 39px;
  height: 403px;
  background-color: #fff;
  box-shadow: 0px 0px 10px #999;
  display: flex;
  padding-top: 47px;
  padding-left: 43px;
  padding-bottom: 42px;
  padding-right: 40px;
  flex-direction: column;
}
.ostbox3item .l h2 {
  font-weight: bold;
  font-size: 24px;
  color: #000000;
  margin-bottom: 16px;
}
.ostbox3item .l p {
  font-weight: 400;
  padding-left: 6px;
  font-size: 16px;
  color: #000000;
  line-height: 36px;
}
.ostbox3item .l .linebox {
  margin-top: auto;
  display: flex;
  justify-content: end;
}
.ostbox3item .l .linebox .img {
  display: flex;
  width: 104px;
  height: 31px;
}