#ld-header {
    position: relative;
}
#ld-header .navbar {
    background: #fff;
}
.ld-container {
    width: 1200px;
    margin: 0 auto;
}
.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
}
.ld-product-banner {
    background: #1F2533;
}
.ld-product-banner .ld-container {
    display: flex;
    justify-content: space-between;
    align-items: self-start;
    height: 420px;
}
.ld-product-banner .banner-content {
    padding-top: 80px;
    color: #FFFFFF;
}
.ld-product-banner .banner-content .title {
    line-height: 50px;
    font-size: 40px;
}
.ld-product-banner .banner-content .desc {
    max-width: 592px;
    height: 113px;
    line-height: 28px;
    font-size: 16px;
    margin-top: 20px;
    opacity: 0.5;
}
.ld-product-banner .banner-content .btn-group .btn {
    margin-right: 20px;
}
.ld-product-box {
    padding: 70px 0;
}
.ld-product-box h2 {
    margin-bottom: 50px;
    line-height: 50px;
    font-size: 40px;
    text-align: center;
    color: #1F2533;
}
.ld-product-box .desc {
    line-height: 26px;
    font-size: 16px;
    color: #5E6D81;
    text-align: center;
    margin: -30px 0 60px;
}
.characteristics-list {
    display: flex;
    flex-wrap: wrap;
}
.characteristics-list .characteristics-item {
    position: relative;
    width: 50%;
    margin-bottom: 20px;
    min-height: 144px;
    padding: 27px 38px 27px 144px;
}
.characteristics-list .characteristics-item .characteristics-icon {
    position: absolute;
    left: 0;
}
.characteristics-list .characteristics-item .characteristics-icon img {
    position: absolute;
    top: 32px;
    left: 32px;
    width: 80px;
    height: 80px;
}
.characteristics-list .characteristics-item .characteristics-icon svg {
    position: absolute;
    top: 32px;
    left: 32px;
    width: 80px;
    height: 80px;
    color: #ff6666;
}
.characteristics-list .characteristics-item .characteristics-title {
    line-height: 30px;
    font-size: 20px;
}
.characteristics-list .characteristics-item .characteristics-desc {
    line-height: 24px;
    font-size: 16px;
    color: #5E6D81;
    margin-top: 15px;
}
.advantages-box {
    margin-bottom: 42px;
}
.advantages-box .advantages-title {
    line-height: 34px;
    font-size: 24px;
}
.advantages-box .advantages-list {
    display: flex;
    justify-content: space-between;
    margin-top: 11px;
}
.advantages-list .advantages-item {
    width: 384px;
    padding: 32px 20px 32px 0px;
}
.advantages-list .advantages-item .advantages-label {
    display: flex;
    height: 32px
    height: 32px;
    line-height: 32px;
    font-size: 20px;
    
}
.advantages-list .advantages-item .advantages-label::before {
    display: inline-block;
    content: '';
    width: 32px;
    height: 32px;
    margin-right: 16px;
    background: url(../images/ld/adv-red-icon.png) no-repeat center right;
    background-size: 100% 100%;
}
.advantages-list .advantages-item .advantages-desc {
    line-height: 24px;
    font-size: 16px;
    color: #5E6D81;
    margin-top: 20px;
}

.advantages-list-1 {
    display: flex;
    justify-content: space-between;
}
.advantages-list-1 .advantages-item {
    position: relative;
    width: 260px;
    text-align: center;
}
.advantages-list-1 .advantages-item .advantages-icon {
    text-align: center;
    margin: 0 auto 35px;
}
.advantages-list-1 .advantages-item .advantages-icon img {
    position: absolute;
    left: 80px;
    display: inline-block;
    vertical-align: top;
    width: 80px;
    height: 80px;
}
.advantages-list-1 .advantages-item .advantages-icon svg {
    /*left: 80px;*/
    width: 80px;
    height: 80px;
    color: #ff6666;
}
.advantages-list-1 .advantages-item .advantages-label {
    display: block;
    line-height: 30px;
    font-size: 20px;
    color: #1F2533;
}
.advantages-list-1 .advantages-item .advantages-label::before {
    display: none;
}

.function-list {
    position: relative;
    height: 660px;
}
.function-list .function-item {
    position: absolute;
}
.function-list .function-item .function-label {
    line-height: 30px;
    font-size: 20px;  
}
.function-list .function-item .function-desc {
    line-height: 24px;
    font-size: 16px;
    color: #5E6D81;
    margin-top: 14px;
    white-space: nowrap;
}
.function-list .function-item .function-icon {
    position: absolute;
}
.function-list .function-item .function-icon svg {
    width: 1em;
    height: 1em;
    font-size: 80px;
    vertical-align: top;
}
.function-list .function-item:nth-child(1) {
    text-align: center;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    padding-bottom: 106px;
}
.function-list .function-item:nth-child(1) .function-icon {
    bottom: 0px;
    left: 50%;
    transform: translateX(-50%);
}
.function-list .function-item:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
    right: -200px;
    padding-left: 106px;
}
.function-list .function-item:nth-child(2) .function-icon {
    top: 50%;
    left: 0px;
    transform: translateY(-50%);
}
.function-list .function-item:nth-child(3) {
    text-align: center;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    padding-top: 106px;
}
.function-list .function-item:nth-child(3) .function-icon {
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}
.function-list .function-item:nth-child(4) {
    top: 50%;
    transform: translateY(-50%);
    left: -50px;
    padding-right: 106px;
    text-align: right;
}
.function-list .function-item:nth-child(4) .function-icon {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
}

.video-introduction {
    width: 100%;
    background-color: #1F2533;
    padding: 70px 0px 80px;
}

.video-introduction h2 {
    line-height: 50px;
    font-size: 40px;
    text-align: center;
    color: #FFF;
}
.video-introduction .video-introduction-des{
    line-height: 36px;
    font-size: 20px;
    color: #FFFFFF;
    opacity: 0.4;
    text-align: center;
    margin-top: 30px;
}

.animate-box{
    width: 1056px;
    height: 594px;
    margin: 27px auto 0px;
    clear: both;
    position: relative;
}
.ip-dh-box {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 708px;
  height: 472px;
  background: #1F2533 url(../images/ld/animation-bottom.png) no-repeat center;
}
.ip-dh-box .animation-item {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
}
.ip-dh-box .animation-item.alternatebg-01 {
  background: url(../images/ld/animation-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-02 {
  background: url(../images/ld/animation-2-1.png) no-repeat center;
  animation: alternatebg-animate01 6s ease-in 0s alternate infinite;
}
.ip-dh-box .animation-item.alternatebg-02-02 {
  background: url(../images/ld/animation-2-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-03 {
  background: url(../images/ld/animation-3-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-03-02 {
  background: url(../images/ld/animation-3-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-04 {
  background: url(../images/ld/animation-4-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-04-02 {
  background: url(../images/ld/animation-4-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-05 {
  background: url(../images/ld/animation-5-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-05-02 {
  background: url(../images/ld/animation-5-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-06 {
  background: url(../images/ld/animation-6-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-06-02 {
  background: url(../images/ld/animation-6-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-07 {
  background: url(../images/ld/animation-7-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-07-02 {
  background: url(../images/ld/animation-7-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-08 {
  background: url(../images/ld/animation-8-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-08-02 {
  background: url(../images/ld/animation-8-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-09 {
  background: url(../images/ld/animation-9-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-09-02 {
  background: url(../images/ld/animation-9-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-10 {
  background: url(../images/ld/animation-10-1.png) no-repeat center;
}
.ip-dh-box .animation-item.alternatebg-10-02 {
  background: url(../images/ld/animation-10-2.png) no-repeat center;
  opacity: 0;
}
.ip-dh-box .animation-item.alternatebg-11 {
  background: url(../images/ld/animation-11.png) no-repeat center;
}
.ip-dh-box .animation-circle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: url(../images/ld/animation-blue-dot.png) no-repeat center;
}
.ip-dh-box .animation-circle.circle-01,
.ip-dh-box .animation-circle.circle-02,
.ip-dh-box .animation-circle.circle-03 {
  top: 341px;
  left: 86px;
  background: url(../images/ld/animation-red-dot.png) no-repeat center;
}
.ip-dh-box .animation-circle.circle-04,
.ip-dh-box .animation-circle.circle-05,
.ip-dh-box .animation-circle.circle-06 {
  top: 389px;
  left: 174px;
}
.ip-dh-box .animation-circle.circle-07 {
  top: 280px;
  left: 212px;
}
.ip-dh-box .animation-circle.circle-08 {
  top: 327px;
  left: 439px;
  opacity: 0;
  animation: circle-animate08 2s ease-in 3s alternate infinite;
}
.ip-dh-box .animation-circle.circle-09 {
  top: 333px;
  left: 507px;
  animation: circle-animate09 2s ease-in 3s alternate infinite;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-10 {
  top: 307px;
  left: 504px;
  animation: circle-animate10 2s ease-in 3s alternate infinite;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-11 {
  top: 243px;
  left: 575px;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-12 {
  top: 196px;
  left: 495px;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-13 {
  top: 243px;
  left: 332px;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-14 {
  top: 185px;
  left: 295px;
  opacity: 0;
}
.ip-dh-box .animation-circle.circle-15 {
  top: 151px;
  left: 192px;
  animation: circle-animate15 3s ease-in 4s alternate infinite;
  opacity: 0;
}
.ip-dh-box.animate-start .circle-01 {
  animation: circle-animate01 1s ease-in 1;
}
.ip-dh-box.animate-start .circle-02 {
  animation: circle-animate01 1s ease-in 1s 1;
}
.ip-dh-box.animate-start .circle-03 {
  animation: circle-animate01 1s ease-in 2s 1;
}
.ip-dh-box.animate-start .circle-04 {
  animation: circle-animate01 1s ease-in 0s 1;
}
.ip-dh-box.animate-start .circle-05 {
  animation: circle-animate01 1s ease-in 1s 1;
}
.ip-dh-box.animate-start .circle-06 {
  animation: circle-animate01 1s ease-in 2s 1;
}
.ip-dh-box.animate-start .circle-07 {
  animation: circle-animate07 1s ease-in 1s 1;
}
.ip-dh-box.animate-start .circle-11 {
  animation: circle-animate11 1s ease-in 2s 1;
}
.ip-dh-box.animate-start .circle-12 {
  animation: circle-animate12 2s ease-in 3s 1;
}
.ip-dh-box.animate-start .circle-13 {
  animation: circle-animate13 1s ease-in 3s 1;
}
.ip-dh-box.animate-start .circle-14 {
  animation: circle-animate14 1s ease-in 4s 1;
}
.ip-dh-box.animate-start .alternatebg-03-02 {
  animation: alternatebg-animate 2s ease-in 0s 1;
}
.ip-dh-box.animate-start .alternatebg-04-02 {
  animation: alternatebg-animate 2s ease-in 2s 1;
}
.ip-dh-box.animate-start .alternatebg-05-02 {
  animation: alternatebg-animate 2s ease-in 2s 1;
}
.ip-dh-box.animate-start .alternatebg-06-02 {
  animation: alternatebg-animate 2s ease-in 4s 1;
}
.ip-dh-box.animate-start .alternatebg-07-02 {
  animation: alternatebg-animate 2s ease-in 4s 1;
}
.ip-dh-box.animate-start .alternatebg-08-02 {
  animation: alternatebg-animate 2s ease-in 4s 1;
}
.ip-dh-box.animate-start .alternatebg-09-02 {
  animation: alternatebg-animate 2s ease-in 4s 1;
}
.ip-dh-box.animate-start .alternatebg-10-02 {
  animation: alternatebg-animate 2s ease-in 4s 1;
}
@keyframes circle-animate01 {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(64px, -38px);
  }
}
@keyframes circle-animate07 {
  from {
    transform: translate(0, 0);
    opacity: 1;
  }
  to {
    transform: translate(74px, -44px);
    opacity: 1;
  }
}
@keyframes circle-animate08 {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  10% {
    transform: translate(0, 0);
    opacity: 1;
  }
  80% {
    transform: translate(-64px, 38px);
    opacity: 1;
  }
  100% {
    transform: translate(-64px, 38px);
    opacity: 0;
  }
}
@keyframes circle-animate09 {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  10% {
    transform: translate(0, 0);
    opacity: 1;
  }
  80% {
    transform: translate(61px, 35px);
    opacity: 1;
  }
  100% {
    transform: translate(61px, 35px);
    opacity: 0;
  }
}
@keyframes circle-animate10 {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  10% {
    transform: translate(0, 0);
    opacity: 1;
  }
  80% {
    transform: translate(73px, -42px);
    opacity: 1;
  }
  100% {
    transform: translate(73px, -42px);
    opacity: 0;
  }
}
@keyframes circle-animate11 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  100% {
    transform: translate(-42px, -26px);
    opacity: 1;
  }
}
@keyframes circle-animate12 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  30% {
    transform: translate(-22px, -14px);
    opacity: 1;
  }
  80% {
    transform: translate(-132px, 52px);
    opacity: 1;
  }
  100% {
    transform: translate(-152px, 42px);
    opacity: 1;
  }
}
@keyframes circle-animate13 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  100% {
    transform: translate(62px, 36px);
    opacity: 1;
  }
}
@keyframes circle-animate14 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  80% {
    transform: translate(71px, -42px);
    opacity: 1;
  }
  100% {
    transform: translate(71px, -42px);
    opacity: 0;
  }
}
@keyframes circle-animate15 {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  10% {
    transform: translate(0, 0);
    opacity: 1;
  }
  80% {
    transform: translate(-39px, -22px);
    opacity: 1;
  }
  100% {
    transform: translate(-39px, -22px);
    opacity: 0;
  }
}
@keyframes circle-animate03 {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }
  20% {
    transform: translate(0, 0);
    opacity: 1;
  }
  40% {
    transform: translate(37px, 23px);
  }
  70% {
    transform: translate(4px, 43px);
  }
  100% {
    transform: translate(44px, 75px);
  }
}
@keyframes alternatebg-animate {
  5% {
    opacity: 0;
  }
  25% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  75% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes alternatebg-animate02 {
  5% {
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes alternatebg-animate01 {
    0% {
      opacity: 1;
    }
    5% {
      opacity: 0;
    }
    100% {
      opacity: 0;
    }
}
.alternatebg-02-02 {
  animation: alternatebg-animate02 6s ease-in 0s alternate infinite;
}


.after-sales-support {
    width: 100%;
    background: #F0F2F5;
    background: linear-gradient(90deg, #DBE1E8, #F0F2F5);
    padding: 70px 0px 80px;
    text-align: center;
}
.after-sales-support h2 {
    margin-bottom: 32px;
}
.after-sales-support .support-time {
    position: relative;
    display: inline-block;
    line-height: 80px;
    font-size: 20px;
    color: #5E6D81;
}
.after-sales-support .support-time img {
    display: inline-block;
    vertical-align: top;
    width: 80px;
    height: 80px;
    margin-right: 32px;
}
.after-sales-support .support-time svg {
    position: absolute;
    width: 80px;
    height: 80px;
    top: 0px;
    left: 0px;
    color: #3377FF;
}

.app-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.app-list .app-item {
    position: relative;
    width: 282px;
    height: 346px;
    margin-bottom: 24px;
    background: #FFFFFF;
    box-shadow: 0px 8px 40px 0px rgba(30, 35, 45, 0.08);
    border-radius: 2px;
    transition: all 0.15s;
}
.app-list .app-item img {
    display: block;
    width: 100%;
    height: 282px;
}
.app-list .app-item .app-item-title {
    line-height: 64px;
    font-size: 16px;
    padding-left: 16px;
}
.app-list .app-item .app-item-desc {
    display: none;
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 282px;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
    z-index: 10;
}
.app-list .app-item .app-item-desc p {
    position: absolute;
    bottom: 11px;
    left: 0px;
    width: 100%;
    line-height: 24px;
    font-size: 14px;
    color: #FFFFFF;
    padding: 0px 16px;
}
.app-list .app-item:hover .app-item-desc {
    display: block;
}
.app-list .app-item:hover {
    margin-top: -8px;
}