@font-face {
  font-family: "AlimamaShuHeiTiBold";
  src: url("https://publicqn.saikr.com/fonts/d2dfb6ec379b22754963d5da858eac471765525602479.otf");
}

.lab-header .lab-header-title {
  color: #222222;
  font-family: 'AlimamaShuHeiTiBold';
  font-size: 36px;
  line-height: 43px;
  width: 100%;
  text-align: center;
  padding-bottom: 40px;
  padding-top: 58px;
}

.lab-header .lab-header-title::before {
  content: '';
  background: url("https://publicqn.saikr.com/e216b362e2514b4c297c5c2c726bbd991768457982626.png") no-repeat center center;
  background-size: 34px 34px;
  width: 34px;
  display: inline-block;
  height: 34px;
  margin-right: 18px;
}

.lab-header .lab-header-title::after {
  content: '';
  background: url("https://publicqn.saikr.com/e216b362e2514b4c297c5c2c726bbd991768457982626.png") no-repeat center center;
  background-size: 34px 34px;
  transform: rotateY(180deg);
  width: 34px;
  display: inline-block;
  height: 34px;
  margin-left: 18px;
}

.lab-banner {
  background: url(https://publicqn.saikr.com/748e8d4800d75f502ae63b6f570bdca11768820673985.jpg) no-repeat center bottom;
  width: 100%;
  height: 467px;
  background-size: 1920px 467px;
}

@media (max-width: 768px) {
  .lab-banner {
    height: 55.7vw;
    background: url(https://publicqn.saikr.com/8e6b31ff80fe457975115c5462fcd78e1768802521217.jpg) no-repeat center bottom;
    background-size: 100% 100%;
  }
  .lab-header .lab-header-title {
    font-size: 24px;
    line-height: 34px;
    width: 100%;
    text-align: center;
    padding-bottom: 18px;
    padding-top: 30px;
  }
  .lab-header .lab-header-title::before {
    background-size: 30px 30px;
    width: 30px;
    display: inline-block;
    height: 30px;
    margin-right: 13px;
  }
  .lab-header .lab-header-title::after {
    background-size: 30px 30px;
    transform: rotateY(180deg);
    width: 30px;
    display: inline-block;
    height: 30px;
    margin-left: 13px;
  }
}

.lab-classroom {
  background: url(https://publicqn.saikr.com/e216b362e2514b4c297c5c2c726bbd991768460863515.jpg) no-repeat center bottom;
  width: 100%;
  height: 355px;
  background-size: 1920px 355px;
}

.lab-classroom .lab-header .lab-header-title {
  padding-top: 54px;
  padding-bottom: 58px;
}

.lab-classroom .lab-classroom-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  max-width: 1080px;
  margin: 0 auto;
}

.lab-classroom .item {
  font-size: 16px;
  line-height: 32px;
  color: #666666;
  text-align: justify;
}

.lab-classroom .item span {
  color: #2a35a1;
  font-weight: 800;
}

@media (max-width: 1000px) {
  .lab-classroom {
    background: none;
    width: 100%;
    height: 100%;
    background-size: 100% 100%;
  }
  .lab-classroom .lab-header .lab-header-title {
    padding-top: 30px;
    padding-bottom: 13px;
  }
  .lab-classroom .lab-classroom-content {
    width: 96vw;
    height: auto;
    gap: 13px;
    max-width: 100%;
    margin: 0 auto;
    border: 1px solid #d4e2ee;
    padding: 22px 25px;
    border-radius: 20px;
  }
  .lab-classroom .item {
    font-size: 14px;
    line-height: 26px;
  }
}

.lab-research .research-info {
  color: #666666;
  font-weight: 400;
  font-size: 16px;
  line-height: 32px;
  text-align: center;
  margin-bottom: 40px;
}

.lab-research .research-info.small {
  font-size: 14px;
  line-height: 20px;
}

.lab-research .research-info-list {
  max-width: 1200px;
  margin: 0 auto;
}

.lab-research .research-info-list .item {
  margin-bottom: 40px;
  background: white;
  box-shadow: 0px 0px 19px rgba(207, 225, 255, 0.47);
  padding: 40px 60px;
  box-sizing: border-box;
  position: relative;
  z-index: 2;
}

.lab-research .research-info-list .item::after {
  content: '';
  position: absolute;
  top: 15px;
  left: 24px;
  width: 299px;
  height: 299px;
  background: url("https://publicqn.saikr.com/30f2996e06156a38e482eb0bebf72d581768555129880.png") top left;
  background-size: 100% 100%;
  z-index: -1;
}

.lab-research .research-item-content {
  display: flex;
  gap: 40px;
  align-items: center;
}

.lab-research .research-item-image {
  flex: 0 0 501px;
}

.lab-research .research-item-image .player-course-id {
  width: 100%;
  height: 282px;
}

.lab-research .research-item-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.lab-research .research-item-text {
  flex: 1;
}

.lab-research .research-item-title {
  font-size: 24px;
  font-weight: 700;
  color: #333333;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 15px;
  border-bottom: 1px solid #c5ddf8;
}

.lab-research .research-item-title::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 34px;
  height: 5px;
  background: linear-gradient(90deg, #139ff4 0%, #5c08e5 100%);
}

.lab-research .research-item-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lab-research .detail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.lab-research .detail-item .detail-icon {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
}

.lab-research .detail-item .detail-icon img {
  width: 100%;
  height: 100%;
  position: relative;
  top: 3px;
}

.lab-research .detail-item .detail-content {
  flex: 1;
  font-size: 16px;
  line-height: 26px;
  color: #666666;
}

.lab-research .detail-item .detail-content strong {
  color: #333333;
  font-weight: 600;
}

@media (max-width: 1000px) {
  .lab-research .research-info {
    font-size: 14px;
    line-height: 26px;
    padding: 0 30px;
    margin-bottom: 20px;
  }
  .lab-research .research-info.small {
    font-size: 14px;
    line-height: 20px;
    margin-bottom: 0;
  }
  .lab-research .research-info-list {
    max-width: 1200px;
    margin: 0 auto;
  }
  .lab-research .research-info-list .item {
    border: 1px solid #d4e2ee;
    background: white;
    width: 96vw;
    border-radius: 20px;
    margin: 0 auto 20px;
    box-shadow: none;
    padding: 22px 18px;
    text-align: justify;
  }
  .lab-research .research-info-list .item::after {
    display: none;
  }
  .lab-research .research-item-content {
    flex-direction: column;
    gap: 26px;
  }
  .lab-research .research-item-image {
    flex: 1;
    width: 100%;
  }
  .lab-research .research-item-image .player-course-id {
    width: 100%;
    height: 49vw !important;
  }
  .lab-research .research-item-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
  }
  .lab-research .research-item-text {
    flex: 1;
  }
  .lab-research .research-item-title {
    font-size: 20px;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 15px;
    border-bottom: 1px solid #c5ddf8;
  }
  .lab-research .research-item-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 34px;
    height: 5px;
    background: linear-gradient(90deg, #139ff4 0%, #5c08e5 100%);
  }
  .lab-research .research-item-details {
    gap: 10px;
  }
  .lab-research .detail-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
  }
  .lab-research .detail-item .detail-icon {
    flex: 0 0 10px;
    width: 10px;
    height: 10px;
  }
  .lab-research .detail-item .detail-icon img {
    top: 7px;
  }
  .lab-research .detail-item .detail-content {
    font-size: 14px;
    line-height: 24px;
  }
}

.lab-join {
  background: url(https://publicqn.saikr.com/e216b362e2514b4c297c5c2c726bbd991768458722131.jpg) no-repeat center bottom;
  width: 100%;
  height: 904px;
  background-size: 1920px 904px;
}

.lab-join .infobox {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.lab-join .infobox div {
  font-size: 16px;
  line-height: 20px;
}

.lab-application-form {
  margin: 0 auto;
  padding: 40px;
  box-sizing: border-box;
  width: 532px;
  mix-blend-mode: normal;
  border-radius: 8px;
  background: white;
  box-shadow: 0px 0px 20px rgba(33, 40, 106, 0.09);
}

.application-form .form-group {
  margin-bottom: 30px;
  display: flex;
  align-items: center;
}

.application-form .form-group.start {
  align-items: flex-start;
}

.application-form .form-group:last-of-type {
  margin-bottom: 30px;
}

.application-form .form-label {
  display: block;
  font-size: 14px;
  color: #333333;
  font-weight: 400;
  min-width: 87px;
  height: 40px;
  line-height: 38px;
}

.application-form .form-label .required-star {
  color: #FF0000;
  margin-right: 4px;
}

.application-form .form-input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border-radius: 4px;
  border: 1px solid #e6efff;
  background: #f4f8ff;
  font-size: 14px;
  color: #333333;
  box-sizing: border-box;
  transition: border-color 0.3s, background-color 0.3s;
}

.application-form .form-input:focus {
  outline: none;
  border-color: #528FF8;
  background-color: #FFFFFF;
}

.application-form .form-input::placeholder {
  color: #999999;
}

.application-form .upload-container .upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 40px;
  padding: 0 16px;
  background: #f7f8fa;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s, border-color 0.3s;
  font-size: 14px;
  color: #3385FF;
}

.application-form .upload-container .upload-btn:hover {
  background-color: #EEEEEE;
  border-color: #CCCCCC;
}

.application-form .upload-container .upload-btn .upload-icon {
  width: 18px;
  height: 18px;
  margin-right: 8px;
  color: #528FF8;
}

.application-form .upload-container .upload-btn span {
  line-height: 1;
}

.application-form .upload-container .file-name-display {
  margin-top: 8px;
  border-radius: 4px;
  font-size: 14px;
  color: #528FF8;
}

.application-form .upload-container .file-name-display .file-name {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.application-form .submit-btn-box {
  text-align: center;
}

.application-form .submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 260px;
  height: 44px;
  background: #3385ff;
  border: none;
  border-radius: 4px;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.3s, transform 0.2s;
  margin-bottom: 28px;
}

.application-form .submit-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #1F8EF8 0%, #1d70ff 100%);
}

.application-form .submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.application-form .submit-btn:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.contact-qr {
  text-align: center;
}

.contact-qr .qr-code {
  display: inline-block;
  padding: 4px 8px;
  background-color: #FFFFFF;
  border-radius: 4px;
}

.contact-qr .qr-code img {
  width: 100px;
  height: 100px;
  display: block;
}

.contact-qr .qr-label {
  font-size: 14px;
  color: #31363f;
}

@media (max-width: 1000px) {
  .lab-join {
    background: none;
    padding-bottom: 30px;
    height: auto;
  }
  .lab-join .infobox {
    display: none;
  }
  .lab-application-form {
    margin: 0 auto;
    padding: 22px;
    border-radius: 20px;
    background: white;
    box-shadow: none;
    width: 96vw;
    height: auto;
    border: 1px solid #d4e2ee;
  }
  .application-form .form-group {
    margin-bottom: 14px;
  }
  .application-form .form-label {
    display: block;
    font-size: 14px;
    color: #333333;
    font-weight: 400;
    min-width: 87px;
  }
  .application-form .form-label .required-star {
    color: #FF0000;
    margin-right: 4px;
  }
  .application-form .form-input {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border-radius: 4px;
    border: 1px solid #e6efff;
    background: #f4f8ff;
    font-size: 14px;
    color: #333333;
    box-sizing: border-box;
    transition: border-color 0.3s, background-color 0.3s;
  }
  .application-form .form-input:focus {
    outline: none;
    border-color: #528FF8;
    background-color: #FFFFFF;
  }
  .application-form .form-input::placeholder {
    color: #999999;
  }
  .application-form .upload-container .upload-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 40px;
    padding: 0 16px;
    background: #f7f8fa;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
    font-size: 14px;
    color: #3385FF;
  }
  .application-form .upload-container .upload-btn:hover {
    background-color: #EEEEEE;
    border-color: #CCCCCC;
  }
  .application-form .upload-container .upload-btn .upload-icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    color: #528FF8;
  }
  .application-form .upload-container .upload-btn span {
    line-height: 1;
  }
  .application-form .upload-container .file-name-display {
    margin-top: 8px;
    border-radius: 4px;
    font-size: 14px;
    color: #528FF8;
  }
  .application-form .upload-container .file-name-display .file-name {
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .application-form .submit-btn-box {
    text-align: center;
  }
  .application-form .submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 260px;
    height: 44px;
    background: #3385ff;
    border: none;
    border-radius: 4px;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.2s;
    margin-bottom: 28px;
  }
  .application-form .submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #1F8EF8 0%, #1d70ff 100%);
  }
  .application-form .submit-btn:active:not(:disabled) {
    transform: translateY(0);
  }
  .application-form .submit-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
  }
  .contact-qr {
    text-align: center;
  }
  .contact-qr .qr-code {
    display: inline-block;
    padding: 4px 8px;
    background-color: #FFFFFF;
    border-radius: 4px;
  }
  .contact-qr .qr-code img {
    width: 100px;
    height: 100px;
    display: block;
  }
  .contact-qr .qr-label {
    font-size: 14px;
    color: #31363f;
  }
}