.header-fixed {
  width: 100%;
  position: fixed;
  top: 76px;
  left: 0;
  background: #fff;
  box-shadow: 0 3px 10px 3px rgb(0 0 0 / 7%);
  transition: 0.5s opacity ease;
  opacity: 0;
  height: 0;
  display: none;
  z-index: 998;
}

.header-fixed.zshow {
  height: auto;
  opacity: 1;
  display: block;
}

.us-product {
  width: 100%;
  padding-top: 60px;
  background-color: #fff;
}

.p-tab-box {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.lf {
  float: left;
}

.rt {
  float: right;
}

.red-tip {
  width: 0%;
  height: 4px;
  padding-bottom: 15px;
  transition: width 1s;
  
}

.p-tab-box .pactive {
  display: block;
  width: 100%;
  margin: 0 auto;
  border-bottom: 4px solid #0252CC;
}

.p-tab-box .pcolor {
  color: #0252CC;
}

.p-tab-pic {
  width: 88px;
  height: 100px;
  margin-bottom: 10px;
}

.p-tab-title {
  font-size: 18px;
  color: #111111;
}

.p-content {
  width: 100%;
  background: #FAFCFE;
}

.middle-content {
  width: 100%;
  margin: 0 auto;
  padding-top: 50px;
  /* padding-bottom: 50px;  */
  overflow: hidden;
}

.mcontent {
  width: 100%;
  margin: 0 auto;
  opacity: 0;
  animation: fade-in 1.3s ease-out 1 forwards;
  -webkit-animation: fade-in 1.3s ease-out 1 forwards;
  transition: all 0.8s ease 1s; 
}

.mcontent-main {
  width: 1200px;
  margin: 0 auto;
}

.p-content .middle-content .mcontent .mcontent-txt-pic {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto;
  padding-top: 50px;
  padding-bottom: 50px;
}

.p-content .middle-content .mcontent .mcontent-txt-pic .p-content-let {
  width: calc(100% - 800px);
}

.p-content .middle-content .mcontent .mcontent-txt-pic .p-content-let-btitle {
  color: var(--text-color-black);
  font-size: 28px;
  margin-bottom: 10px;
  font-weight: bold;
}

.p-content .middle-content .mcontent .mcontent-txt-pic .p-content-let-stitle {
  color: var(--text-color-gray);
  font-size: 16px;
  line-height: 26px;
  margin-top: 20px;
  text-align: justify;
}

.p-content-right {
  width: 762px;
}

.p-content-right .p-content-right-icon {
  width: 100%;
}

.slide-list {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: wrap;
  padding-top: 30px;
  padding-bottom: 30px;
}

.slide-list .slide-item {
  width: 30%;
  margin-right: 40px;
  margin-bottom: 20px;
  padding: 34px;
  border-radius: 4px;
}

.slide-list .slide-item .slide-title {
  color: var(--text-color-black);
  font-size: 18px;
  margin-bottom: 10px;
  font-weight: bold;
}

.slide-list .slide-item .slide-desc {
  color: var(--text-color-gray);
  font-size: 14px;
  line-height: 22px;
  text-align: justify;
}

.bgcolor {
  color: #fff !important;
  background: rgba(23, 43, 77, 0.8);
}

@-webkit-keyframes fade-in {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}
@-moz-keyframes fade-in {
  0% {
    opacity: 0;
  }
  50% {
      opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}
@-ms-keyframes fade-in {
  0% {
    opacity: 0;
  }
  50% {
      opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}
@keyframes fade-in {
  0% {
    opacity: 0;
  }
  50% {
      opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

.opacityactive {
  opacity: 1;
}