.w1400 {
  min-width: 1200px;
}
.case_20211222 {
  background: #f6f6f6;
}
.case_20211222 img {
  display: block;
  margin: 0 auto;
  width: 100%;
}
.case_20211222 .case_2021 {
  padding-bottom: 60px;
}
.case_20211222 .case_2021:nth-child(2n - 1) {
  background: #fff;
}
.case_20211222 .page_title {
  padding: 70px 0;
  line-height: 52px;
  font-size: 40px;
  font-weight: 900;
  color: #333;
  text-align: center;
}
.case_20211222 .case_01 .next {
  position: relative;
  padding: 50px 0 120px;
}
.case_20211222 .case_01 .next img {
  width: 455px;
}
.case_20211222 .case_01 .next .pos {
  position: absolute;
  width: 360px;
}
.case_20211222 .case_01 .next .pos b {
  margin-bottom: 10px;
  font-size: 20px;
}
.case_20211222 .case_01 .next .pos p {
  font-size: 16px;
  color: 3333;
  line-height: 1.8;
  color: #333;
}
.case_20211222 .case_01 .next .pos.pos_1 {
  left: 0;
  top: 100px;
}
.case_20211222 .case_01 .next .pos.pos_2 {
  left: 0;
  top: 320px;
}
.case_20211222 .case_01 .next .pos.pos_3 {
  left: 50%;
  top: 10px;
  transform: translateX(-50%);
}
.case_20211222 .case_01 .next .pos.pos_4 {
  left: 50%;
  top: 440px;
  transform: translateX(-50%);
}
.case_20211222 .case_01 .next .pos.pos_5 {
  right: 0;
  top: 100px;
}
.case_20211222 .case_01 .next .pos.pos_6 {
  right: 0;
  top: 320px;
}
.case_20211222 .case_02 {
  padding-bottom: 80px;
}
.case_20211222 .case_02 .page_title {
  padding: 70px 0 90px;
}
.case_20211222 .case_02 .next {
  position: relative;
  background: url(../images/case/20211222/9.jpg) center no-repeat;
  background-size: cover;
}
.case_20211222 .case_02 .next ul {
  position: relative;
}
.case_20211222 .case_02 .next ul li {
  float: left;
  margin: 0 3px 3px 0;
  width: calc((100% - 6px)/3);
  height: 310px;
  color: #fff;
  background: rgba(64, 64, 64, 0.9);
}
.case_20211222 .case_02 .next ul li .bor {
  padding: 50px 30px 0;
}
.case_20211222 .case_02 .next ul li .bor b {
  margin-bottom: 20px;
  padding-left: 60px;
  font-size: 30px;
  font-weight: bold;
  background: url(../images/case/20211222/5.png) left center no-repeat;
  background-size: 40px auto;
}
.case_20211222 .case_02 .next ul li .bor p {
  padding-left: 20px;
  font-size: 20px;
  text-align: justify;
  background: url(../images/case/20211222/10.png) left 10px no-repeat;
}
.case_20211222 .case_02 .next ul li:nth-child(3n) {
  margin-right: 0;
}
.case_20211222 .case_02 .next ul li:nth-child(1) .bor b,
.case_20211222 .case_02 .next ul li:nth-child(5) .bor b {
  background: url(../images/case/20211222/5.png) left center no-repeat;
  background-size: 40px auto;
}
.case_20211222 .case_02 .next ul li:nth-child(2) .bor b,
.case_20211222 .case_02 .next ul li:nth-child(6) .bor b {
  background: url(../images/case/20211222/6.png) left center no-repeat;
  background-size: 40px auto;
}
.case_20211222 .case_02 .next ul li:nth-child(3) .bor b,
.case_20211222 .case_02 .next ul li:nth-child(4) .bor b {
  background: url(../images/case/20211222/7.png) left center no-repeat;
  background-size: 40px auto;
}
.case_20211222 .case_02 .next .r_1 {
  position: absolute;
  left: calc((100% - 6px)/3 - 16px);
  top: 294px;
  width: 34px;
  height: 34px;
  background: url(../images/case/20211222/8.png) center no-repeat;
}
.case_20211222 .case_02 .next .r_2 {
  position: absolute;
  left: calc(((100% - 6px)/3) * 2 - 12px);
  top: 294px;
  width: 34px;
  height: 34px;
  background: url(../images/case/20211222/8.png) center no-repeat;
}
.case_20211222 .case_02 .next .lie {
  position: absolute;
  background: #bfbfbf;
}
.case_20211222 .case_02 .next .lie_1 {
  left: calc((100% - 6px)/3 + 1px);
  top: -20px;
  width: 1px;
  height: calc(100% + 40px);
}
.case_20211222 .case_02 .next .lie_2 {
  left: calc((100% - 6px)/3 * 2 + 4px);
  top: -20px;
  width: 1px;
  height: calc(100% + 40px);
}
.case_20211222 .case_02 .next .lie_3 {
  left: -20px;
  top: 311px;
  width: calc(100% + 40px);
  height: 1px;
}
.case_20211222 .case_01 .next,
.case_20211222 .case_02 .next {
  display: block;
}
.case_20211222 .case_01 .next_m,
.case_20211222 .case_02 .next_m {
  display: none;
}
@media (max-width: 1200px) {
    .w1400 {
      min-width:60%;
    }
  .case_20211222 .case_2021 {
    padding-bottom: 0.6rem;
  }
  .case_20211222 .page_title {
    padding: 0.7rem 0;
    line-height: 0.5rem;
    font-size: 0.4rem;
  }
  .case_20211222 .case_02 .page_title {
        padding: 0.7rem 0;
    }
  .case_20211222 .case_01 .next,
  .case_20211222 .case_02 .next {
    display: none;
  }
  .case_20211222 .case_01 .next_m,
  .case_20211222 .case_02 .next_m {
    display: block;
  }
}