.contact_form {
  padding: 8rem 0;
  position: relative;
}

.contact_form:after {
  content: "";
  width: 100%;
  height: 90rem;
  position: absolute;
  z-index: -1;
  background-color: #F6F6F6;
  top: 35.3rem;
  left: 0;
}

.contact_form .left {
  width: 39.44%;
  padding: 6.6rem 5.3rem;
  background: url('../img/contact_info_bg.jpg') no-repeat center/cover;
}

.contact_form .right {
  width: 53.7%;
}

.contact_form .left .icon {
  width: 5.2rem;
  height: 5.2rem;

}

.contact_form .left .logo img {
  width: 35rem;
}

.contact_form .left .contact_infos {
  padding-top: 5.2rem;
  padding-bottom: 6.2rem;
  margin-top: 3.2rem;
  border-top: 1px solid #2a4a76;
  border-bottom: 1px solid #2a4a76;
}

.contact_form .left .contact_infos li {
  display: flex;
  gap: 1.6rem;
  color: white
}

.contact_form .left .contact_infos li strong {
  font-size: 2rem;
  font-weight: 400;
  display: block;
  margin-bottom: 0.7rem;
}

.contact_form .left .contact_infos li a,
.contact_form .left .contact_infos li p {
  font-size: 1.6rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  letter-spacing: 0.02rem;
}

.contact_form .left .contact_infos li+li {
  margin-top: 5.2rem;
}

.contact_form .left .contact_infos li p+p {
  margin-top: 1rem;
}

.contact_form .socials {
  padding-top: 3.4rem;
}

.contact_form .socials ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  justify-content: space-between;
}

.contact_form .socials li {
  position: relative;
}

.contact_form .socials ul a,
.contact_form .socials ul span {
  display: inline-block;
  width: 4.9rem;
  height: 4.9rem;
  border-radius: 50%;
  overflow: hidden;
  text-indent: -999999px;
  position: relative;
}

.contact_form .socials ul a:after,
.contact_form .socials ul span:after {
  content: "";
  width: 100%;
  height: 100%;
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  background: url('../img/social_wecaht.svg') no-repeat center/contain;
}

.contact_form .socials ul .weibo a:after {
  background-image: url('../img/social_weibo.svg');
}

.contact_form .socials ul .douyin a:after {
  background-image: url('../img/social_douyin.svg');
}

.contact_form .socials ul .bilibili a:after {
  background-image: url('../img/social_bilibili.svg');
}

.contact_form .socials ul .qq a:after {
  background-image: url('../img/social_qq.svg');
}

.contact_form .socials ul .zhihu a:after {
  background-image: url('../img/social_zhihu.svg');
}

.contact_form .socials ul .toutiao a:after {
  background-image: url('../img/social_toutiao.svg');
}

.contact_form .socials a:hover+.qrcode,
.contact_form .socials span:hover+.qrcode {
  transform: translate(-50%, 0);
  opacity: 1;
  pointer-events: all;
}

.contact_form .socials .qrcode {
  position: absolute;
  width: 12rem;
  height: 12rem;
  left: 50%;
  bottom: 100%;
  margin: 1rem;
  background-color: #fff;
  padding: 5px;
  transform: translate(-50%, 10%);
  opacity: 0;
  transition: all 0.4s, opacity 0.3s;
  pointer-events: none;
}

.contact_form .socials .qrcode img {
  display: block;
  object-fit: cover;
  width: 100%;
  height: 100%;
}

.contact_form .head {
  margin-bottom: 14.5rem;
  margin-top: -0.5rem;
}

.contact_form .head h2 {
  margin-bottom: 2.2rem;
}

.contact_form .head p {
  font-weight: 400;
  color: #4c5159;
  max-width: 72rem;
}

.contact_form .form form {
  display: flex;
  flex-flow: wrap;
  gap: 2rem 1.8rem;
}

.contact_form .form form span {
  display: block;
  width: 100%;
  position: relative;
}

.contact_form .form form span:has([aria-required="true"])::after {
  content: "*";
  position: absolute;
  left: 2rem;
  top: 1.8rem;
  font-size: 1.8rem;
  color: red;
  transition: all 0.3s;
}

.contact_form .form form span:has(input:focus)::after {
  opacity: 0;
}

.contact_form .form form span.col2 {
  width: 48.7%;
}

.contact_form .form form span input:not([type="submit"]) {
  line-height: 6.2rem;
  padding: 0 3.2rem;
  background-color: white;
  width: 100%;
  font-size: 1.5rem;
}

.contact_form .form form span textarea {
  padding: 3.2rem;
  font-size: 1.5rem;
  line-height: 1.5;
  background-color: white;
  width: 100%;
  height: 12.8rem;
}

.contact_form .form form span input:not([type="submit"])::placeholder {
  color: #999999;
  font-weight: 500;
}

.contact_form .form form strong {
  font-size: 3rem;
  font-weight: 600;
  display: block;
  width: 100%;
  margin-bottom: 0.2rem;
}

.contact_form .form form span:has(.btn) {
  margin-top: 1rem;
}

.contact_form .form form .btn {
  width: 100%;
}

.contact_form .form form .btn input {
  display: none;
}

.contact_map {
  padding-bottom: 12.6rem;
}

.contact_map .map_switch .item {
  width: 100%;
  position: relative;
}

.contact_map .map_switch .item iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}

.contact_map .map_switch {
  position: relative;
  aspect-ratio: 1427/704;
}

.contact_map .map_switch .item {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
}

.contact_map .map_switch .item.active {
  opacity: 1;
  pointer-events: all;
}

.contact_map .map_con .nav {
  position: absolute;
  left: 3rem;
  top: 3rem;
  z-index: 9;
}

.contact_map .map_con .nav ul {
  display: flex;
}

.contact_map .map_con .nav li.active {
  background-color: var(--primary);
  color: white;
}

.contact_map .map_con .nav li {
  display: flex;
  align-items: center;
  line-height: 5.5rem;
  padding: 0 3.6rem 0 4.3rem;
  font-size: 1.8rem;
  font-weight: 500;
  color: #4c5159;
  background-color: white;
  transition: all 0.3s;
  cursor: pointer;
}

.contact_map .map_con .nav li:before {
  content: "";
  width: 2.6rem;
  height: 2.6rem;
  background: url('../img/map_pos.svg') no-repeat center/contain;
  display: inline-block;
  margin-right: 0.5rem;
  transition: all 0.3s;
}

.contact_map .map_con .nav li.active:before {
  filter: brightness(100);
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
  .contact_form .head {
    margin-bottom: 8rem;
  }
}

@media screen and (min-width: 769px) and (max-width: 896px) {
  .contact_form .left {
    padding: 4rem 2rem;
  }

  .contact_form .head {
    margin-bottom: 5rem;
  }

  .contact_form .form form span.col2 {
    width: 100%;
  }

  .contact_form .socials ul {
    flex-flow: wrap;
    justify-content: left;
  }
}

@media screen and (max-width: 768px) {
  .contact_form {
    padding: 40px 0;
  }

  .contact_form::after {
    display: none;
  }

  .contact_form .flex {
    flex-direction: column;
    gap: 30px;
  }

  .contact_form .left {
    width: 100%;
    padding: 30px 20px;
  }

  .contact_form .left .logo img {
    width: 200px;
  }

  .contact_form .left .contact_infos {
    padding-top: 30px;
    padding-bottom: 30px;
    margin-top: 20px;
  }

  .contact_form .left .contact_infos li {
    gap: 12px;
  }

  .contact_form .left .contact_infos li+li {
    margin-top: 24px;
  }

  .contact_form .left .contact_infos li strong {
    font-size: 16px;
    margin-bottom: 4px;
  }

  .contact_form .left .contact_infos li a,
  .contact_form .left .contact_infos li p {
    font-size: 14px;
  }

  .contact_form .left .icon {
    width: 36px;
    height: 36px;
  }

  .contact_form .socials {
    padding-top: 20px;
  }

  .contact_form .socials ul {
    gap: 10px;
    flex-wrap: wrap;
  }

  .contact_form .socials ul a {
    width: 36px;
    height: 36px;
  }

  .contact_form .right {
    width: 100%;
  }

  .contact_form .head {
    margin-bottom: 30px;
    margin-top: 0;
  }

  .contact_form .head h2 {
    margin-bottom: 12px;
  }

  .contact_form .head p {
    font-size: 14px;
    line-height: 1.6;
  }

  .contact_form .form form {
    gap: 14px;
  }

  .contact_form .form form span.col2 {
    width: 100%;
  }

  .contact_form .form form span input:not([type="submit"]) {
    line-height: 48px;
    padding: 0 20px;
    font-size: 14px;
    border: 1px solid #eee;
  }

  .contact_form .form form span:has([aria-required="true"])::after {
    top: 14px;
    left: 10px;
  }

  .contact_form .form form span textarea {
    padding: 20px;
    font-size: 14px;
    min-height: 100px;
    border: 1px solid #eee;
  }

  .contact_form .form form strong {
    font-size: 22px;
  }

  .contact_map {
    padding-bottom: 50px;
  }

  .contact_map .map_switch {
    aspect-ratio: auto;
    height: 350px;
  }

  .contact_map .map_con .nav {
    left: 10px;
    top: 10px;
  }

  .contact_map .map_con .nav li {
    line-height: 40px;
    padding: 0 16px;
    font-size: 14px;
  }

  .contact_map .map_con .nav li::before {
    width: 18px;
    height: 18px;
    margin-right: 4px;
  }

  .contact_banner.img_bg>img {
    position: relative;
    width: 100%;
    height: auto;
  }
}