.about {
  background: url(../images/about_bg.jpg) no-repeat center bottom / cover;
}

.about-more a {
  display: block;
  margin-left: 20px;
  width: 100px;
  font-size: 14px;
  line-height: 24px;
  color: #434c53;
  text-align: center;
  border: 1px solid #434c53;
  border-radius: 24px;
}
.about-more a:hover{
    color: #fff;
    background: #367796;
}

/* about1 */

.about1-main {
  padding: 15px;
}
.about1-title {
  display: flex;
  align-items: center;
  font-size: 18px;
  line-height: 30px;
  color: #333;
}

.about1-ad {
  padding: 10px 0;
  font-size: 22px;
  line-height: 30px;
  color: #333;
}
.about1-bread {
  text-align: right;
  font-size: 14px;
  line-height: 24px;
  color: #333;
}

.abou1-since {
  padding: 20px 0 10px;
}
.abou1-since img {
  width: 4rem;
}

.about1-text {
  font-size: 14px;
  line-height: 20px;
  color: #333;
  text-align: justify;
}
.about1-name {
  padding: 0 0 10px;
  font-size: 16px;
  line-height: 24px;
  color: #333;
}
.about1-img {
  padding: 10px 0 0;
  text-align: center;
}

.about1-img img {
  width: 6rem;
}
@media (min-width: 1200px) {
  .about1 {
    padding: 8vw 0;
  }
  .about1-main {
    width: 68.4vw;
    margin: 0 auto;
  }
  .about1-title {
    padding: 0 3vw;
    font-size: 1.2vw;
    line-height: 1.5vw;
    color: #333;
  }
  .about1-ad {
    padding: 2vw 3vw 4vw;
    font-size: 1.4vw;
    line-height: 3vw;
    color: #333;
  }
  .about1-bread {
    padding: 0 3vw;
    text-align: right;
    font-size: 0.9vw;
    line-height: 1.4vw;
    color: #333;
  }

  .abou1-since {
    padding: 20vw 0 2vw;
  }
  .abou1-since img {
    width: 46vw;
  }
  .about1-box {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
  }
  .about1-text {
    width: 42vw;
    font-size: 0.9vw;
    line-height: 1.5vw;
    color: #333;
    text-align: justify;
  }
  .about1-name {
    padding: 0 0 1.5vw;
    font-size: 1.5vw;
    line-height: 2.4vw;
    color: #333;
  }

  .about1-img {
    width: 20vw;
  }
  .about1-img img {
    width: 100%;
  }
}

/* about2 */
.about2 {
  padding: 0 2vw;
}
.about2-main {
  position: relative;
}
.about2-img img {
  width: 100%;
}
.about2-font {
  position: absolute;
  z-index: 5;
  right: 0;
  bottom: 0;
  width: 100%;
  text-align: right;
  font-weight: bold;
  font-size: 30px;
  line-height: 1;
  color: #fff;
}
@media (min-width: 1200px) {
  .about2 {
    padding: 0 2vw;
  }
  .about2-main {
    position: relative;
  }
  .about2-img img {
    width: 100%;
  }
  .about2-font {
    position: absolute;
    z-index: 5;
    right: 0;
    bottom: 0;
    width: 100%;
    text-align: right;
    font-weight: bold;
    font-size: 7.5vw;
    line-height: 1;
    color: #fff;
  }
}

/* about3 */
.about3 {
  padding: 15px;
}

.about3-title {
  display: flex;
  align-items: center;    
  padding: 0 0 10px;
}
.about3-title:hover {
  color: #c00029;
}
.about3-big {
  font-size: 30px;
  line-height: 36px;
  color: #333;
}
.about3-small {
  font-size: 14px;
  line-height: 24px;
  color: #1a6082;
}
.event {
  display: flex;
  justify-content: space-between;
}
.about3-left {
  position: relative;
  width: 40%;
  padding-left: 60px;
  background: url(../images/about3_bg.png) no-repeat right center/0.5vw 100%;
}
.about3-arrow {
  position: absolute;
  left: 0;
  top: 50%;
  width: 60px;
  transform: translate3d(0, -50%, 0);
}
.about3-arrow-prev,
.about3-arrow-next {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 20px;
  height: 20px;
  margin: 10px auto;
  border-radius: 50%;
  cursor: pointer;
  background: #d5e5e9;
}
.about3-arrow-prev:hover, 
.about3-arrow-next:hover {
  background: #1a6082;
}
.about3-arrow-prev img,
.about3-arrow-next img {
  width: 10px;
}
.about3-thumb {
  height: 6rem;
  overflow: hidden;
}
.about3-thumb .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 0;
  font-size: 0.6rem;
  line-height: 0.72rem;
  text-align: center;
  color: #c6dce2;
}
.about3-thumb .swiper-slide-active {
  color: #1a6082;
  background: url(../images/about3_active.png) no-repeat right center/0.5vw 100%;
}

.about3-right {
  width: 60%;
  padding-left: 10px;
}
.about3-right-ch {
  font-size: 16px;
  line-height: 36px;
  color: #d7e5e9;
}
.about3-right-en {
  padding: 0 0 10px;
  font-size: 0.6rem;
  line-height: 0.72rem;
  color: #d7e5e9;
  text-transform: uppercase;
}
.about3-gallery {
  height: 3.6rem;
  overflow: hidden;
}

.about3-gallery-text {
  height: 80px;
  overflow: hidden;
  font-size: 14px;
  line-height: 20px;
  color: #333;
}

.about3-gallery-img img {
  width: 100%;
}
@media (min-width: 1200px) {
  .about3 {
    padding: 3vw 0 8vw;
  }
  .about3-main {
    width: 62.4vw;
    margin: 0 auto;
  }
  .about3-title {
    padding: 0 0 5vw;
  }
  .about3-big {
    font-size: 1.5vw;
    line-height: 1.8vw;
    color: #333;
  }
  .about3-small {
    font-size: 14px;
    line-height: 24px;
    color: #1a6082;
  }
  .event {
    display: flex;
    justify-content: space-between;
  }
  .about3-left {
    position: relative;
    width: 50%;
    padding-left: 8vw;
    background: url(../images/about3_bg.png) no-repeat right center/0.5vw 100%;
  }
  .about3-arrow {
    position: absolute;
    left: 0;
    top: 50%;
    width: 8vw;
    transform: translate3d(0, -50%, 0);
  }
  .about3-arrow-prev,
  .about3-arrow-next {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 2vw;
    height: 2vw;
    margin: 1vw auto;
    border-radius: 50%;
    cursor: pointer;
  }

  .about3-arrow-prev img,
  .about3-arrow-next img {
    width: 1vw;
  }
  .about3-thumb {
    height: 35vw;
    overflow: hidden;
  }
  .about3-thumb .swiper-slide {
    padding: 0.1vw 0;
    font-size: 6vw;
    line-height: 7vw;
    text-align: center;
    color: #c6dce2;
  }
  .about3-thumb .swiper-slide-active {
    color: #1a6082;
    background: url(../images/about3_active.png) no-repeat right center/0.5vw
      100%;
  }

  .about3-right {
    width: 50%;
    padding-left: 4vw;
  }
  .about3-right-ch {
    font-size: 3vw;
    line-height: 3.6vw;
    color: #d7e5e9;
  }
  .about3-right-en {
    padding: 0 0 3vw;
    font-size: 3vw;
    line-height: 3.6vw;
    color: #d7e5e9;
  }
  .about3-gallery {
    height: 21vw;
    overflow: hidden;
  }

  .about3-gallery-text {
    height: 7vw;
    overflow: hidden;
    font-size: 0.9vw;
    line-height: 1.4vw;
    color: #333;
  }

  .about3-gallery-img img {
    width: 100%;
  }
}

/* about4 */
.about4 {
  background: #18597c url(../images/about4_bg.jpg) no-repeat center 0 / cover;
}
.about4-main {
  padding: 15px;
}
.about4-title {
  display: flex;
  align-items: center;    
  font-size: 24px;
  line-height: 36px;
  color: #fff;
}

.about4-title .about-more a{
    color: #fff;
    border-color: #fff;
}

.about4-small {
  font-size: 14px;
  line-height: 20px;
  color: #fff;
}
.about4-ul {
  display: flex;
  flex-wrap: wrap;
  padding: 10px 0 0;
}
.about4-li {
  padding: 10px 0;
}
.about4-li:nth-child(1) {
  margin-right: 0.5rem;
}
.about4-li:nth-child(2) {
  margin-right: 0.5rem;
}
.about4-li:nth-child(3) {
  margin-right: 0.5rem;
}
.about4-li:nth-child(4) {
  margin-right: 0.5rem;
}

.about4-li-num {
  padding: 0 0 0.5vw;
}
.about4-li-num img {
  height: 30px;
}
.about4-li-p {
  font-size: 14px;
  line-height: 20px;
  color: #fff;
}
@media (min-width: 1200px) {
  .about4 {
    background: #18597c url(../images/about4_bg.jpg) no-repeat center 0 / cover;
  }
  .about4-main {
    width: 72vw;
    margin: 0 auto;
    padding: 5vw 0;
  }
  .about4-title {
    font-size: 1.5vw;
    line-height: 2vw;
    color: #fff;
  }
  .about4-small {
    font-size: 14px;
    line-height: 20px;
    color: #fff;
  }
  .about4-ul {
    display: flex;
    flex-wrap: wrap;
    padding: 0;
  }
  .about4-li {
    padding: 2vw 0;
  }
  .about4-li:nth-child(1) {
    margin-right: 8vw;
  }
  .about4-li:nth-child(2) {
    margin-right: 10vw;
  }
  .about4-li:nth-child(3) {
    margin-right: 2.5vw;
  }
  .about4-li:nth-child(4) {
    margin-right: 2.5vw;
  }

  .about4-li-num {
    padding: 0 0 0.5vw;
  }
  .about4-li-num img {
    height: 2.6vw;
  }
  .about4-li-p {
    font-size: 1.8vw;
    line-height: 2vw;
    color: #fff;
  }
}