.swiper-slide {
  overflow: hidden;
}
.banner {
  position: relative;
}
.banner .swiper-slide i {
  display: block;
}
.banner i img {
  width: 100%;
}
.banner-layer {
  position: absolute;
  z-index: 10;
  left: 0;
  top: 5%;
  width: 50%;
  text-align: center;
  color: #fff;
}
.banner-big {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 40px;
  font-family: "SimSun";
  letter-spacing: 3px;
  background: url(../images/line_w.png) no-repeat center bottom;
}
.banner-layer p {
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0;
}
.banner-pagination .swiper-pagination-bullet {
  width: 13px;
  height: 30px;
  margin: 0 4px;
  opacity: 1;
  background: url(../images/page_icon.png) no-repeat center center;
}
.banner-pagination .swiper-pagination-bullet-active {
  background-image: url(../images/page_icona.png);
}

/* 时间 */
.swiper-slide-active .delay11 {
  transition-delay: 1.1s;
}
.swiper-slide-active .delay12 {
  transition-delay: 1.2s;
}

.swiper-slide-active .delay13 {
  transition-delay: 1.3s;
}

.swiper-slide-active .delay14 {
  transition-delay: 1.4s;
}

.swiper-slide-active .delay15 {
  transition-delay: 1.5s;
}

.banner .swiper-slide .bottom50 {
  opacity: 0;
  transform: translate3d(0, 50%, 0);
  transition: 1s 1s;
}
.banner .swiper-slide-active .bottom50 {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
@media (min-width: 1200px) {
  .banner-layer {
    position: absolute;
    z-index: 10;
    left: 0;
    top: 25%;
    width: 40%;
    text-align: center;
    color: #fff;
  }
  .banner-big {
    margin: 0 0 30px;
    font-size: 56px;
    line-height: 80px;
    letter-spacing: 3px;
    background: url(../images/line_w.png) no-repeat center bottom;
  }
  .banner-layer p {
    font-size: 0.9vw;
    line-height: 1.8vw;
    letter-spacing: 1px;
  }
}

/* part1 */
.part1 {
  margin: 15px 0;
}

.part1-ul {
  display: flex;
  justify-content: space-between;
}
.part1-li {
  width: 25%;
  padding: 0 5px;
}
.part1-li a {
  display: block;
  text-align: center;
}

.part1-li-img img {
  width: 25px;
}
.part1-li-name {
  font-size: 14px;
  line-height: 36px;
  color: #333;
}
.part1-li-p {
  display: none;
}
.part1-li-more {
  display: none;
}

@media (min-width: 1200px) {
  .part1 {
    width: 65%;
    margin: 50px auto;
  }
  .part1-li {
    width: 25%;
    padding: 0 3vw;
  }
  .part1-li-img img {
    width: auto;
  }
  .part1-li-name {
    font-size: 16px;
    line-height: 36px;
  }
  .part1-li-p {
    display: block;
    margin: 0 0 10px;
    height: 40px;
    overflow: hidden;
    font-size: 14px;
    line-height: 20px;
    color: #666;
  }
  .part1-li-more {
    display: block;
    font-size: 12px;
    line-height: 20px;
    color: #999;
  }
}


/* part2 */
.part2 {
  background: url(../images/part2_bg.jpg) no-repeat center center/cover;
}
.part2-top {
  display: flex;
  width: 40%;
  margin: 0 auto;
  text-align: center;
}

.part2-top .big {
  padding: 15px 0 10px;
  font-size: 16px;
  line-height: 24px;
  color: #fff;
}
.part2-top .small {
  display: none;
}

.part2-bottom {
  display: flex;
  justify-content: space-between;
  text-align: center;
}
.part2-left,
.part2-center,
.part2-right {
  width: 30%;
}
.part2-left a,
.part2-center a,
.part2-right a {
  display: block;
  padding: 30px 0;
}

.part2-title {
  margin: 10px 0;
  font-size: 14px;
  line-height: 20px;
  color: #fff;
  text-align: center;
}
.part2-detail {
  display: none;
}
.part2-more {
  width: 75px;
  margin: 0 auto;
  height: 20px;
  font-size: 12px;
  line-height: 20px;
  color: #fff;
  text-align: center;
  background: rgba(195, 20, 27, 0.8);
}

@media (min-width: 1200px) {
  .part2-top {
    display: flex;
    justify-content: space-between;
    text-align: center;
  }

  .part2-top .big {
    padding: 40px 0 20px;
    font-size: 60px;
    line-height: 48px;
    color: #fff;
  }
  .part2-top .small {
    display: block;
    font-size: 16px;
    line-height: 30px;
    color: #fff;
  }

  .part2-bottom {
    display: flex;
    justify-content: space-between;
    text-align: center;
  }
  .part2-left a,
  .part2-center a,
  .part2-right a {
    padding: 300px 0 0;
  }

  .part2-title {
    margin: 10px 0;
    font-size: 24px;
    line-height: 40px;
    color: #fff;
    text-align: center;
  }
  .part2-detail {
    display: block;
    font-size: 14px;
    line-height: 20px;
    color: #fff;
  }
  .part2-more {
    width: 130px;
    margin: 20px auto;
    height: 40px;
    font-size: 12px;
    line-height: 40px;
    color: #fff;
    text-align: center;
    background: rgba(195, 20, 27, 0.8);
  }
}


/* part3 */
.part3 {
  padding: 0;
}
.part3-title {
  margin: 20px 0;
  padding: 0 0 5px;
  font-size: 22px;
  line-height: 40px;
  color: #333;
  text-align: center;
  background: url(../images/line_b.png) no-repeat center bottom;
}
.part3-ul {
  display: flex;
  flex-wrap: wrap;
}
.part3-li {
  position: relative;
  display: block;
  width: 50%;
}
.part3-li i {
  display: block;
  overflow: hidden;
  background: #000;
}
.part3-li img {
  width: 100%;
  transition: 0.3s;
}
.part3-li-layer {
  position: absolute;
  left: 0;
  top: 10%;
  width: 100%;
  color: #fff;
  text-align: center;
}
.part3-li-title {
  margin: 15px 0;
  padding: 0 0 5px;
  overflow: hidden;
  font-size: 20px;
  line-height: 40px;
  background: url(../images/line_w.png) no-repeat center bottom;
}
.part3-li-detail {
  font-size: 12px;
  line-height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.part3-li-font {
  display: none;
}

@media (min-width: 1200px) {
  .part3 {
    padding: 0;
    background: #fff;
  }
  .part3-li {
    width: 25%;
  }
  .part3-li-layer {
    z-index: 5;
    top: 25%;
  }
  .part3-li-font {
    display: block;
    position: absolute;
    z-index: 99;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    padding: 48% 10% 10%;
    font-size: 14px;
    line-height: 20px;
    color: #fff;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
  }
  .part3-li:hover img {
    opacity: 0.8;
    transform: scale(1.1);
  }
  .part3-li:hover .part3-li-font {
    opacity: 1;
  }
}

/* part4 */
.part4 {
  height: 180px;
  padding: 20px 40% 0 5px;
  color: #fff;
  background: url(../images/part4_bg.jpg) no-repeat center center/cover;
}
.part4-title {
  padding: 0 0 5px;
  font-size: 24px;
  line-height: 40px;
  font-family: SimSun;
  text-align: center;
  background: url(../images/line_w.png) no-repeat center bottom;
}
.part4-detail {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 24px;
  letter-spacing: 3px;
  text-align: center;
}
.part4-ul {
  display: none;
}
.part4-tel {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
}

@media (min-width: 1200px) {
  .part4 {
    height: 42vw;
    padding: 10vw 60vw 0 0;
  }
  .part4-title {
    margin: 0 0 1vw;
    font-size: 2.4vw;
    line-height: 4vw;
  }
  .part4-detail {
    font-size: 1.4vw;
    line-height: 2vw;
    letter-spacing: 3px;
  }

  .part4-ul {
    display: flex;
    justify-content: center;
    padding: 10px 0;
  }
  .part4-ul a {
    display: block;
    padding: 0 5px 0 7px;
    font-size: 14px;
    line-height: 20px;
    color: #fff;
    background: url(../images/shu.png) no-repeat 0 center;
  }
  .part4-ul a:nth-child(1) {
    background: none;
  }
  .part4-tel {
    margin: 10px 0 0;
    font-size: 18px;
    line-height: 30px;
    color: #fff;
  }
}