/*banner背景图片动画*/
@-webkit-keyframes scale-bg {
  from {
    -webkit-transform: scale(1.2);
    transform: scale(1.2);
  }
  to {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}
@keyframes scale-bg {
  from {
    -webkit-transform: scale(1.2);
    transform: scale(1.2);
  }
  to {
    -webkit-transform: scale(1);
    transform: scale(1);
  }
}
/*banner */

.bn {
  position: relative;
  margin-top: 0px;
}
.bn .index_banner .item {
  background-size: cover;
  -webkit-background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 100vh;
  position: relative;
}
.bn .index_banner .item.slick-current .scaleBg {
  visibility: visible;
  -webkit-animation: scale-bg 6s linear forwards;
  animation: scale-bg 6s linear forwards;
}
.bn .index_banner .items {
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.bn .index_banner .items:after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(0, 0, 0, 0);
}
.bn .index_banner .item .inner .block_txt {
  position: absolute;
  top: 30%;
  left: 9%;
  opacity: 0;
  transform: translateY(40px);
  -webkit-transform: translateY(40px);
  -webkit-transition: all 500ms ease;
  transition: all 500ms ease;
}
.bn .index_banner .item.active .inner .block_txt {
  opacity: 1;
  -webkit-transform: translateY(0);
  transform: translateY(0);
  -webkit-transition-delay: 100ms;
  transition-delay: 100ms;
}

.bn .index_banner .item .inner .block_txt h2 {
  margin-top: 10px;
  margin-bottom: 60px;
  color: #fff;
  font-size: 68px;
  line-height: 1;
  font-weight: bold;
  text-align: left;
  letter-spacing: 5px;
  text-shadow: 1px 1px 1px #333;
}
.bn .index_banner .item .inner .block_txt h3 {
  color: #fff;
  font-size: 78px;
  text-align: left;
  line-height: 1;
  /* margin-top: 10px; */
  font-weight: 400;
  letter-spacing: 3px;
  /* text-shadow: 1px 1px 1px #333; */
  font-family: "Impact";
  text-transform: uppercase;
  opacity: 0.3;
}

.bn .index_banner .item .inner .block_txt a{
  font-size: 18px;
  color: #fff;
  font-family: "hl";
  line-height: 1.8;
  text-align: left;
  /* text-shadow: 1px 1px 1px #333; */
  margin-top: 40px;
  font-weight: 100;
}
.bn .index_banner .item .inner .block_txt h3 span {
  display: block;
  font-weight: bold;
  margin-bottom: 0.2rem;
}
.bn .index_banner .item .inner .block_txt .more {
  margin-top: 4rem;
}
.bn .index_banner .item .inner .block_txt .more a {
  display: inline-block;
  padding: 0.6rem 2.5rem;
  color: #fff;
  border-left: 1px solid #ffffff75;
  border-right: 1px solid #ffffff75;
}
.bn .slick_txt {
  width: 54px;
  height: 41px;
  background-color: transparent;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
  background-repeat: no-repeat;
  position: absolute;
  bottom: 8%;
  font-size: 0;
  outline: none;
  border: 0;
  cursor: pointer;
}
/* .bn .slick_txt:hover {
  background-image: url(/images/ban_next_hover.png);
} */
.bn .left {
  right: calc(8% + 80px);
}
.bn .right {
  right: 8%;
}
.bn .slick_txt:hover .slick_arrow {
  opacity: 1;
  visibility: visible;
}
.bn .slick_txt .slick_arrow {

}
.bn .slick_txt .prev {
  background-image: url(/images/ban_prev.png);
  width: 100%;
  height: 42px;
}
.bn .slick_txt .next {
  background-image: url(/images/ban_next.png);
  width: 100%;
  height: 42px;
}
.bn .slick_txt .prev:hover {
  background-image: url(/images/ban_prev_hover.png);
}
.bn .slick_txt .next:hover {
  background-image: url(/images/ban_next_hover.png);
}
.bn .number {
  position: absolute;
  bottom: 8%;
  left: 14%;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  display: table;
  padding: 0 20px;
  width: auto;
  text-align: center;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
}
.bn .number span {
  font-family: "Myriad Pro", "Microsoft YaHei";
  font-size: 30px;
  color: #fff;
  margin-right: 100px;
  display: inline-block;
  cursor: pointer;
  position: relative;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
}
.bn .number span:last-child {
  margin-right: 0;
}
.bn .number span:after {
  content: "";
  display: inline-block;
  width: 0;
  height: 2px;
  background: #fff;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  bottom: -20px;
  opacity: 0;
  visibility: hidden;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
}
.bn .number span.active:after {
  width: 100%;
  opacity: 1;
  visibility: visible;
}

@media only screen and (max-width: 1600px) {
  .bn .index_banner .item .inner .block_txt h4 {
    font-size: 18px;
  }
  .bn .index_banner .item .inner .block_txt h2 {
    font-size: 48px;
  }
  .bn .index_banner .item .inner .block_txt h3 {
    font-size: 20px;
  }
}
@media only screen and (max-width: 1440px) {
  .bn .index_banner .item .inner .block_txt h3 {
    font-size: 48px;
  }
  .bn .index_banner .item .inner .block_txt h2 {
    font-size: 42px;
  }
  .bn .index_banner .item .inner .block_txt a{
    font-size: 16px;
  }
  .bn .number{
    left: 20%;
  }
}
@media only screen and (max-width: 1366px) {

}
@media only screen and (max-width: 1300px) {
}
@media only screen and (max-width: 1199px) {
  .bn .index_banner .item .inner .block_txt h4 {
    font-size: 18px;
  }
  .bn .index_banner .item .inner .block_txt h2 {
    font-size: 22px;
  }
  .bn .index_banner .item .inner .block_txt h3 {
    font-size: 14px;
  }
  .bn .number span{
    font-size: 22px;
  }
}
@media only screen and (max-width: 992px) {
  .bn .index_banner .item .inner .block_txt h3{
    font-size: 26px;
  }
  .bn .index_banner .item {
    height: 100vh;
  }
  .bn .slick_txt {
    display: none;
  }
  .bn .index_banner .item .inner .block_txt {
    left: 0;
    right: 0;
    margin: 0 auto;
    padding: 0 20px;
    top: 28%;
  }
  .bn .index_banner .slick-arrow {
    display: none !important;
  }
  .bn .index_banner .slick-dots {
    position: absolute;
    bottom: 12px;
  }
  .bn .index_banner .slick-dots li {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid #fff;
  }
  .bn .index_banner .slick-dots li button {
    display: none;
  }
  .bn .index_banner .slick-dots li.slick-active {
    background: #fff;
  }
  .bn .number {
    bottom: 12%;
    display: none;
  }
  .bn .number span {
    margin-right: 22px;
  }
  .bn .number span:after {
    bottom: -14px;
  }
  .bn .index_banner .item .inner .block_txt a i {
    font-size: 36px;
  }
  .bn .index_banner .item .inner .block_txt h2 {
    margin-bottom: 30px;
  }
  .bn .index_banner .item{
    height: 34vh;
  }

  .bn .index_banner .item .inner .block_txt a{
    display: none;
  }

}
@media only screen and (max-width: 767px) {
}
@media only screen and (max-width: 340px) {
}
@media only screen and (max-width: 320px) {
}