.md-about-41 .border-red {
  margin-top: 70px;
}
.md-about-41 .sitem {
  display: none;
}
.md-about-41 .sitem.show {
  display: block;
}
.md-about-41 .list {
  margin-top: 55px;
}
.md-about-41 .li {
  margin-bottom: 16px;
}
.md-about-41 .hd {
  font-size: 18px;
  cursor: pointer;
}
.md-about-41 .bd {
  display: none;
}
.md-about-41 .bbox {
  background-color: #f0f0f0;
  padding: 65px 70px 55px;
  margin-top: 40px;
  margin-bottom: 56px;
  position: relative;
}
.md-about-41 .bbox::after {
  content: "";
  width: 25px;
  height: 16px;
  background-color: #f0f0f0;
  position: absolute;
  left: 0;
  bottom: 100%;
  clip-path: polygon(0 0, 0% 100%, 100% 100%);
}
.md-about-41 .logo {
  background-color: #e2e2e2;
  padding: 16px;
  text-align: center;
  margin-top: 20px;
  margin-bottom: 10px;
}
.md-about-41 .logo img {
  -o-object-fit: contain;
     object-fit: contain;
  height: 48px;
}
.md-about-41 .i-li {
  width: calc( 510 / 1030 * 100%);
  margin-bottom: 10px;
}
.md-about-41 .i-li .img {
  padding-top: calc( 245 / 510 * 100%);
}
.md-about-41 .i-li .i-te {
  margin-top: 10px;
}
.md-about-41 .swiper {
  padding: 24px 0;
  background-color: #f0f0f0;
  margin-top: 50px;
}
.md-about-41 .swiper .sw {
  width: auto;
  padding: 0 45px;
  cursor: pointer;
  box-shadow: -1px 0 0 0 inset #c2c8cf;
  line-height: 26px;
}
.md-about-41 .swiper .on {
  color: var(--active);
}
.md-about-41 .y-list {
  padding: 24px 1px;
  background-color: #f0f0f0;
  margin-top: 50px;
}
.md-about-41 .y-list .yi {
  width: 117px;
  cursor: pointer;
  box-shadow: -1px 0 0 0 inset #c2c8cf;
  line-height: 26px;
  text-align: center;
}
.md-about-41 .y-list .on {
  color: var(--active);
}
@media screen and (max-width: 767px) {
  .md-about-41 .bbox {
    padding: 30px;
  }
  .md-about-41 .y-list .yi {
    padding: 0;
    margin: 5px 0;
    width: 33.3%;
  }
}