body {
  background: #fff;
}
.swiper {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  overflow: hidden;
  transform-origin: 0 0;
}

.banner {
  position: relative;
}
.banner img {
  width: 100%;
  transition: 1s 1s;
}
.banner .swiper-slide-active img {
  transform: matrix(1.1, 0, 0, 1.1, 0, 0);
}

.banner img {
  width: 100%;
}

@media (min-width: 1200px) {
  .banner img {
    transition: 1s 1s;
    width: 100%;
  }

  .banner .swiper-slide-active img {
    transform: scale(1.1);
  }
}

.part1 {
  background: url(../images/mpart1-bg.jpg) no-repeat center 0;
  position: relative;
}

.part1-en {
  left: 0;
  position: absolute;
  top: 2rem;
  z-index: 1;
}

.part1-en,
.part1-en img {
  width: 100%;
}

.part1-main {
  padding: 0.8rem 0 0;
  position: relative;
  width: 100%;
  z-index: 10;
}

.part1-ad {
  color: #333;
  font-size: 0.48rem;
  line-height: 0.48rem;
  text-align: center;
}

.part1-ad span {
  color: #991010;
}

.part1-detail {
  align-items: center;
  color: #333;
  display: flex;
  font-size: 14px;
  justify-content: center;
  line-height: 20px;
  padding: 0.2rem 0 0.4rem;
  text-align: center;
}

.part1-p {
  color: #333;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
}

.part1-shu {
  padding: 0.6rem 0 0;
  text-align: center;
}

.part1-shu img {
  width: 4px;
}

.part1-box {
  position: relative;
}

.part1-box i {
  display: block;
}

.part1-box i img {
  width: 100%;
}

.part1-ul {
  background: url(../images/part1-ul.png) no-repeat bottom/cover;
  bottom: 0;
  flex-wrap: wrap;
  justify-content: center;
  left: 0;
  padding: 0.2rem;
  position: absolute;
  width: 5.2rem;
}

.part1-li,
.part1-ul {
  align-items: center;
  display: flex;
}

.part1-li {
  justify-content: space-between;
  margin: 0.1rem 0;
  padding: 0.15rem 0 0.15rem 0.2rem;
  width: 50%;
}

.part1-li-icon {
  width: 0.48rem;
}

.part1-li-icon img {
  width: 100%;
}

.part1-li-font {
  background: url(../images/part1-li-shu.png) no-repeat 100% 100%;
  color: #333;
  font-size: 12px;
  line-height: 18px;
  padding-right: 0.2rem;
  text-align: right;
}

@media (max-width: 1200px) {
  .part1 .animated {
    opacity: 1;
    transform: translateZ(0);
  }
}

@media (min-width: 1200px) {
  .part1 {
    position: relative;
  }

  .part1-en {
    left: 0;
    position: absolute;
    top: 7.2vw;
    z-index: 1;
  }

  .part1-en,
  .part1-en img {
    width: 100%;
  }

  .part1-main {
    margin: 0 auto;
    padding: 5vw 0 0;
    position: relative;
    width: 86vw;
    z-index: 10;
  }

  .part1-ad {
    color: #333;
    font-size: 2.4vw;
    line-height: 2.4vw;
    text-align: center;
  }

  .part1-ad span {
    color: #991010;
  }

  .part1-detail {
    align-items: center;
    color: #333;
    display: flex;
    font-size: 0.9vw;
    justify-content: center;
    line-height: 1.2vw;
    padding: 1.5vw 0 3vw;
    text-align: center;
  }

  .part1-p {
    color: #333;
    font-size: 0.9vw;
    line-height: 1.4vw;
    text-align: center;
  }

  .part1-shu {
    padding: 3vw 0 0;
    text-align: center;
  }

  .part1-box {
    position: relative;
  }

  .part1-box i {
    display: block;
  }

  .part1-box i img {
    width: 100%;
  }

  .part1-ul {
    background: url(../images/part1-ul.png) no-repeat bottom/cover;
    bottom: 0;
    justify-content: center;
    left: -7vw;
    padding: 2vw 0;
    position: absolute;
    width: 54vw;
  }

  .part1-li,
  .part1-ul {
    align-items: center;
    display: flex;
  }

  .part1-li {
    background: url(../images/part1-li-shu.png) no-repeat 100%;
    justify-content: space-between;
    padding: 0.2vw 1vw;
    width: 11vw;
  }

  .part1-li-icon {
    width: 2.4vw;
  }

  .part1-li-icon img {
    width: 100%;
  }

  .part1-li-font {
    padding: 0;
    color: #333;
    font-size: 0.9vw;
    line-height: 1.4vw;
    text-align: right;
    background: none;
  }
}

.part2 {
  background: url(../images/part2-bg.jpg) no-repeat center 0 / cover;
  position: relative;
}

.part2-main {
  padding: 0 0.2rem;
  width: 100%;
}

.part2-name {
  background: url(../images/part2-arrow.png) no-repeat 4rem/0.4rem;
  color: #991010;
  font-size: 0.48rem;
  line-height: 0.6rem;
  padding: 0.4rem 0;
}

.part2-nav {
  padding: 0 0 0.4rem;
}

.part2-nav ul {
  display: flex;
}

.part2-nav li {
  padding-right: 0.4rem;
}

.part2-nav a {
  color: #333;
  display: block;
  font-size: 0.3rem;
  line-height: 0.36rem;
}

.part2-ad {
  background: #991010;
  border-radius: 5px;
  color: #fff;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  width: 2.5rem;
}

.pics {
  height: 150px;
  margin: 0.8rem 0 0;
  overflow: hidden;
  position: relative;
}

.pics ul {
  display: flex;
  left: 0;
  position: absolute;
  top: 0;
}

.pics ul li {
  padding: 0 5px;
  width: 150px;
}

.pics ul a {
  display: block;
}

.pics ul a img {
  width: 100%;
}

.part2-right {
  margin: 0.8rem auto 0;
  position: relative;
  width: 3.4rem;
}

.part2-right i {
  display: block;
  padding-left: 0.2rem;
}

.part2-right i img {
  width: 100%;
}

.part2-li {
  color: #333;
  position: absolute;
  z-index: 5;
}

.part2-li .big {
  font-size: 16px;
  line-height: 24px;
  min-width: 0.8rem;
  position: relative;
}

.part2-li .small {
  font-size: 12px;
  line-height: 18px;
  margin-top: 0.1rem;
}

.part2-li1 {
  left: -1.8rem;
  text-align: right;
  top: 0.8rem;
}

.part2-li1 .big:after {
  border-top: 1px dashed #333;
  content: "";
  height: 1px;
  position: absolute;
  right: -1.4rem;
  top: 12px;
  width: 1.2rem;
}

.part2-li2 {
  right: -1.8rem;
  top: 3.4rem;
}

.part2-li2 .big:after {
  border-top: 1px dashed #333;
  content: "";
  height: 1px;
  left: -1.2rem;
  position: absolute;
  top: 12px;
  width: 1rem;
}

.part2-li3 {
  left: -2rem;
  text-align: right;
  top: 4.2rem;
}

.part2-li3 .big:after {
  border-top: 1px dashed #333;
  content: "";
  height: 1px;
  position: absolute;
  right: -0.8rem;
  top: 12px;
  width: 0.6rem;
}

.part2-bottom {
  color: #333;
  font-size: 14px;
  line-height: 20px;
  padding: 0.4rem 0;
  text-align: center;
}

@media (min-width: 1200px) {
  .part2 {
    background: url(../images/part2-bg.jpg) no-repeat center 0 / cover;
    padding: 4.5vw 0;
    position: relative;
  }

  .part2-main {
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    width: 62.4vw;
  }

  .part2-left {
    padding-top: 2.4vw;
    width: 34.5vw;
  }

  .part2-name {
    background: url(../images/part2-arrow.png) no-repeat 20vw/2vw;
    color: #991010;
    font-size: 2.4vw;
    line-height: 3vw;
    padding: 0;
  }

  .part2-nav {
    padding: 1vw 0 2vw;
  }

  .part2-nav ul {
    display: flex;
  }

  .part2-nav li {
    padding-right: 2vw;
  }

  .part2-nav a {
    color: #333;
    display: block;
    font-size: 0.9vw;
    line-height: 1.4vw;
  }

  .part2-nav a:hover {
    color: #991010;
    transform: scale(1.1);
  }

  .part2-ad {
    background: #991010;
    border-radius: 0.8vw;
    color: #fff;
    font-size: 0.9vw;
    line-height: 1.4vw;
    text-align: center;
    width: 10vw;
  }

  .pics {
    height: 14.2vw;
    margin: 1vw 0;
    overflow: hidden;
    position: relative;
  }

  .pics ul {
    display: flex;
  }

  .pics ul li {
    padding: 0 0.1vw;
    width: 13.6vw;
  }

  .pics ul a {
    display: block;
  }

  .pics ul a img {
    width: 100%;
  }

  .part2-right {
    margin: 0;
    position: relative;
    width: 16vw;
  }

  .part2-right i {
    display: block;
  }

  .part2-right i img {
    width: 100%;
  }

  .part2-li {
    color: #333;
    position: absolute;
    z-index: 5;
  }

  .part2-li .big {
    font-size: 0.9vw;
    line-height: 1.2vw;
    min-width: 4vw;
    position: relative;
  }

  .part2-li .small {
    font-size: 0.8vw;
    line-height: 1.2vw;
    margin-top: 0.5vw;
  }

  .part2-li1 {
    left: -7vw;
    text-align: right;
    top: 4.5vw;
  }

  .part2-li1 .big:after {
    border-top: 1px dashed #333;
    content: "";
    height: 1px;
    position: absolute;
    right: -7.4vw;
    top: 0.6vw;
    width: 6.4vw;
  }

  .part2-li2 {
    left: 19vw;
    top: 18vw;
  }

  .part2-li2 .big:after {
    border-top: 1px dashed #333;
    content: "";
    height: 1px;
    left: -6vw;
    position: absolute;
    top: 0.6vw;
    width: 5vw;
  }

  .part2-li3 {
    left: -7.2vw;
    text-align: right;
    top: 23.4vw;
  }

  .part2-li3 .big:after {
    border-top: 1px dashed #333;
    content: "";
    height: 1px;
    position: absolute;
    right: -3.6vw;
    top: 0.6vw;
    width: 2.6vw;
  }

  .part2-bottom {
    align-items: center;
    color: #333;
    display: flex;
    font-size: 0.9vw;
    justify-content: space-between;
    line-height: 1.4vw;
    text-align: center;
  }

  .part2-bottom img {
    height: 4.8vw;
  }
}

.part3 {
  background: url(../images/mpart3-bg.jpg) no-repeat center 0 / cover;
  height: 6rem;
  position: relative;
}

.part3-ad {
  bottom: 0.6rem;
  left: 0;
  position: absolute;
  text-align: center;
  width: 100%;
}

.part3-ad img {
  width: 5rem;
}

.video-btn {
  bottom: 3rem;
  left: 0;
  position: absolute;
  text-align: center;
  width: 100%;
  z-index: 10;
}

.video-btn img {
  width: 0.6rem;
}

.video-bg {
  background: #0009;
  display: none;
  height: 100%;
  position: fixed;
  top: 0;
}

.alerts,
.video-bg {
  left: 0;
  width: 100%;
  z-index: 99;
}

.alerts {
  bottom: 10%;
  position: absolute;
  text-align: center;
}

.alerts img {
  width: 40px;
}

.video-bg div {
  align-items: center;
  display: flex;
  height: 100%;
  position: fixed;
  width: 100%;
  z-index: 1;
}

.videos {
  width: 100%;
}

@media (min-width: 1200px) {
  .part3 {
    background: url(../images/part3-bg.jpg) no-repeat center 0 / cover;
    height: 100vh;
    overflow: hidden;
    position: relative;
  }

  .part3-ad {
    bottom: 7vw;
    left: 0;
    position: absolute;
    text-align: center;
    width: 100%;
  }

  .part3-ad img {
    width: 28vw;
  }
}

.part4 {
  padding: 0.4rem 0;
  position: relative;
}

.part4-main {
  padding: 0 0.2rem;
  width: 100%;
}

.part4-left {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding: 0 0 0.3rem;
}

.part4-slide {
  width: 3.7rem;
}

.part4-slide img {
  width: 100%;
}

.part4-ad {
  color: #333;
  font-size: 14px;
  line-height: 18px;
  width: 3.2rem;
}

.part4-right {
  margin: 0 -0.2rem;
  position: relative;
}

.part4-right ul {
  background: url(../images/part4-dashed.png) no-repeat 0 4.5rem;
  display: flex;
  padding: 0 0.2rem;
}

.part4-right ul li {
  overflow: hidden;
  width: 25%;
}

.part4-li-img img {
  height: 3.8rem;
}

.part4-li-font {
  background: url(../images/part4-circle.png) no-repeat 50%/100%;
  font-size: 0.3rem;
  height: 0.6rem;
  line-height: 0.6rem;
  margin: 0.6rem auto 0;
  position: relative;
  text-align: center;
  width: 0.6rem;
}

.part4-li-font:after {
  border-left: 1px dashed #bda562;
  content: "";
  height: 0.6rem;
  left: 50%;
  position: absolute;
  top: -0.6rem;
  width: 1px;
}

.part4-right ul li:hover {
  width: 33.3%;
}

.part4-right ul li:hover .part4-li-img img {
  opacity: 1;
}

@media (min-width: 1200px) {
  .part4 {
    padding: 3vw 0;
    position: relative;
  }

  .part4-main {
    margin: 0 auto;
    width: 84vw;
  }

  .part4-left,
  .part4-main {
    display: flex;
    justify-content: space-between;
  }

  .part4-left {
    align-items: flex-start;
    padding: 1.5vw 0 0;
    width: 15vw;
  }

  .part4-slide {
    width: 7vw;
  }

  .part4-slide img {
    width: 6.8vw;
  }

  .part4-ad {
    border-right: 1px solid #333;
    color: #333;
    font-size: 1.2vw;
    line-height: 1;
    margin-top: 1.6vw;
    padding: 0 0.3vw;
    writing-mode: vertical-lr;
  }

  .part4-ad p {
    padding: 0 0.1vw;
  }

  .part4-right {
    width: 62vw;
  }

  .part4-right ul {
    background: url(../images/part4-dashed.png) no-repeat center 25vw/100%;
    display: flex;
    padding: 0 1vw;
  }

  .part4-right ul li {
    overflow: hidden;
    transition: 0.3s;
    width: 25%;
  }

  .part4-li-img {
    background: #333;
    height: 20vw;
    overflow: hidden;
  }

  .part4-li-img img {
    height: auto;
    opacity: 0.7;
    transition: 0.3s;
  }

  .part4-li-font {
    background: url(../images/part4-circle.png) no-repeat 50% / cover;
    font-size: 1.5vw;
    height: 3vw;
    line-height: 3vw;
    margin: 4vw auto 0;
    position: relative;
    text-align: center;
    width: 3vw;
  }

  .part4-li-font:after {
    border-left: 2px dashed #bda562;
    content: "";
    height: 4vw;
    left: 50%;
    position: absolute;
    top: -4vw;
    width: 1px;
  }

  .part4-right ul li:hover {
    width: 33.3%;
  }

  .part4-right ul li:hover .part4-li-img img {
    opacity: 1;
  }
}

.fix-nav {
  bottom: 0;
  left: 0;
  position: fixed;
  width: 100%;
  z-index: 50;
}

.fix-nav ul {
  background: #0009;
  display: flex;
  height: 1.4rem;
  justify-content: space-around;
  padding: 0.3rem 0.1rem 0;
  width: 100%;
}

.fix-nav ul li {
  width: 25%;
}

.fix-nav ul a {
  display: block;
  text-align: center;
}

.fix-nav ul i {
  display: block;
}

.fix-nav i img {
  width: 0.5rem;
}

.fix-nav a p {
  color: #fff;
  font: 400 0.3rem/0.3rem "微软雅黑";
  padding-top: 0.1rem;
}