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

.section1 {
  position: relative;
  margin-top: 6.25rem;
}
.section1 .index_banner .item {
  background-size: cover;
  -webkit-background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 84vh;
  position: relative;
}
.section1 .index_banner .item.slick-current .scaleBg {
  visibility: visible;
  -webkit-animation: scale-bg 6s linear forwards;
  animation: scale-bg 6s linear forwards;
}
.section1 .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;
}
.section1 .index_banner .items:after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(0, 0, 0, 0);
}
.section1 .index_banner .item .inner .block_txt {
  position: absolute;
  top: 50%;
  left: 50%;
  opacity: 0;
  transform: translate(-50%, -40%);
  -webkit-transform: translate(-50%, -40%);
  -webkit-transition: all 500ms ease;
  transition: all 500ms ease;
}
.section1 .index_banner .item.active .inner .block_txt {
  opacity: 1;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -webkit-transition-delay: 100ms;
  transition-delay: 100ms;
}

.section1 .index_banner .item .inner .block_txt h2 {
  margin-bottom: 1.63rem;
  color: #fff;
  font-size: 3.25rem;
  line-height: 1;
  font-weight: bold;
  text-align: left;
  letter-spacing: 1px;
  /* text-shadow: 1px 1px 1px #333; */
}

.section1 .index_banner .item .inner .block_txt h4 {
  color: #fff;
  font-size: 2.13rem;
  text-align: left;
  line-height: 1;
  letter-spacing: 1px;
  /* text-shadow: 1px 1px 1px #333; */
  margin-bottom: 8.75rem;
}

.section1 .index_banner .item .inner .block_txt h3 span {
  display: block;
  font-weight: bold;
  margin-bottom: 0.2rem;
}
.section1 .index_banner .item .inner .block_txt .more {
  margin-top: 4rem;
}

.section1 .slick_txt {
  width: 14%;
  height: 100%;
  background-color: transparent;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
  background-repeat: no-repeat;
  position: absolute;
  top: 0;
  font-size: 0;
  outline: none;
  border: 0;
}
.section1 .left {
  left: 0;
}
.section1 .right {
  right: 0;
}
.section1 .slick_txt:hover .slick_arrow {
  opacity: 1;
  visibility: visible;
}
.section1 .slick_txt .slick_arrow {
  width: 1.25rem;
  height: 2.25rem;
  background-repeat: no-repeat;
  background-position: center;
  margin-top: -1.13rem;
  position: absolute;
  top: 50%;
  cursor: pointer;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
  opacity: 0;
  visibility: hidden;
}
.section1 .slick_txt .prev {
  background-image: url(../images/ban_prev.png);
  left: 3.75rem;
}
.section1 .slick_txt .next {
  background-image: url(../images/ban_next.png);
  right: 3.75rem;
}
.section1 .slick_txt .prev:hover {
  background-image: url(../images/ban_prev_hover.png);
}
.section1 .slick_txt .next:hover {
  background-image: url(../images/ban_next_hover.png);
}
.section1 .number {
  position: absolute;
  bottom: 8%;
  left: 50%;
  padding-bottom: 0.31rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  display: table;
  padding: 0 1.25rem;
  width: auto;
  text-align: center;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
}
.section1 .number span {
  font-family: "Myriad Pro", "Microsoft YaHei";
  font-size: 0.88rem;
  color: #fff;
  margin-right: 6.25rem;
  display: inline-block;
  cursor: pointer;
  position: relative;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
}
.section1 .number span:last-child {
  margin-right: 0;
}
.section1 .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: -1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: all 500ms ease;
  -webkit-transition: all 500ms ease;
}
.section1 .number span.active:after {
  width: 100%;
  opacity: 1;
  visibility: visible;
}

@media only screen and (max-width: 1600px) {
  .section1 .index_banner .item .inner .block_txt h4 {
    font-size: 2.13rem;
  }
  .section1 .index_banner .item .inner .block_txt h2 {
    font-size: 3rem;
  }
  .section1 .index_banner .item .inner .block_txt h3 {
    font-size: 20px;
  }
}
@media only screen and (max-width: 1440px) {
  .section1 .index_banner .item .inner .block_txt h4 {
    font-size: 1.88rem;
  }
  .section1 .index_banner .item .inner .block_txt h2 {
    font-size: 2.5rem;
  }
  .section1 .index_banner .item .inner .block_txt h3 {
    font-size: 1.13rem;
    margin-top: 5px;
  }
}
@media only screen and (max-width: 1366px) {
  .section1 .index_banner .item .inner .block_txt h4 {
    font-size: 1.63rem;
  }
  .section1 .index_banner .item .inner .block_txt h2 {
    font-size: 2.38rem;
  }
  .section1 .index_banner .item .inner .block_txt h3 {
    font-size: 1.13rem;
  }
  .section1 .index_banner .slick-arrow {
    background-size: auto 1.88rem;
  }
}
@media only screen and (max-width: 1300px) {
}
@media only screen and (max-width: 1199px) {
  .section1 .index_banner .item .inner .block_txt h4 {
    font-size: 1rem;
  }
  .section1 .index_banner .item .inner .block_txt h2 {
    font-size: 1.5rem;
  }
  .section1 .index_banner .item .inner .block_txt h3 {
    font-size: 14px;
  }
}

/* 平板竖屏（Portrait） */
@media (min-width: 768px) and (max-width: 1024px) {
  /* 调整布局、字体大小等 */
}

/* 平板横屏（Landscape） */
@media (min-width: 1025px) and (max-width: 1366px) {
  /* 例如：侧边栏展开 */
}

@media only screen and (max-width: 992px) {
}
@media only screen and (max-width: 767px) {
  .section1 {
    margin-top: 4rem;
  }
  .section1 .index_banner .item {
    height: 30vh;
  }
  .section1 .slick_txt {
    display: none;
  }
  .section1 .index_banner .item .inner .block_txt {
    left: 50%;
    right: 0;
    margin: 0 auto;
    padding: 0 20px;
    top: 28%;
  }
  .section1 .index_banner .slick-arrow {
    display: none !important;
  }
  .section1 .index_banner .slick-dots {
    position: absolute;
    bottom: 12px;
  }
  .section1 .index_banner .slick-dots li {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid #fff;
  }
  .section1 .index_banner .slick-dots li button {
    display: none;
  }
  .section1 .index_banner .slick-dots li.slick-active {
    background: #fff;
  }
  .section1 .number {
    bottom: 12%;
    display: none;
  }
  .section1 .number span {
    margin-right: 22px;
  }
  .section1 .number span:after {
    bottom: -14px;
  }
  .section1 .index_banner .item .inner .block_txt a i {
    font-size: 36px;
  }
  .section1 .index_banner .item .inner .block_txt h2 {
    margin-bottom: 18px;
    font-size: 22px;
  }
  .section1 .index_banner .item .inner .block_txt .more {
    display: none;
  }
  .section1 .index_banner .item .inner .block_txt h4 {
    margin-bottom: 0;
    font-size: 16px;
  }
  .section1 .index_banner .item.active .inner .block_txt {
    top: 44%;
  }
}
@media only screen and (max-width: 340px) {
}
@media only screen and (max-width: 320px) {
}