article {
  padding: 0;
}
.about-nav {
  padding: 60px 0 0;
  background: none;
}
.about-nav ul {
  display: flex;
  flex-wrap: wrap;
}
.about-nav ul li {
  width: 50%;
  padding: 2px;
}
.about-nav ul li a {
  display: block;
  font: 400 16px/30px "微软雅黑";
  text-align: center;
  color: #fff;
  background: #333;
}
@media (min-width: 1200px) {
  .about-nav {
    position: fixed;
    z-index: 50;
    left: -1px;
    top: 40%;
    width: 100px;
    padding: 0;
    background: none;
  }
  .about-nav ul {
    display: block;
  }
  .about-nav ul li {
    width: 100%;
    margin-bottom: 4px;
  }
  .about-nav ul li a {
    color: #333;
    background: #ffffff;
  }
  .about-nav ul li a:hover {
    color: #fff;
    background: #00a443;
  }
}

/* about1  */

.about1 {
  padding: 0.4rem 0 0.2rem;
  background: url(../images/about1-bg.jpg) no-repeat 0 0 / cover;
}
.about1-main {
  padding: 0.2rem;
}
.about1-left {
  padding: 0.2rem 0;
}
.about1-left .ch {
  font-size: 0.4rem;
  line-height: 0.48rem;
  color: #333;
}
.about1-left .en {
  margin: 0.1rem 0 0;
  font-size: 12px;
  line-height: 18px;
}

.about1-right {
  padding: 0.2rem;
  background: url(../images/about1-box.jpg) no-repeat 0 0 / cover;
}
.about1-ad {
  font-weight: 600;
  font-size: 0.36rem;
  line-height: 0.4rem;
  text-align: left;
}
.about1-ad .en {
  color: #00a443;
  text-transform: uppercase;
}

.about1-ad .ch span {
  color: #333;
}
.about1-name {
  padding: 0.2rem 0;
  font-size: 0.3rem;
  line-height: 0.36rem;
  color: #333;
}
.about1-p {
  font-size: 14px;
  line-height: 20px;
  color: #333;
}
.about1-more {
  width: 1.6rem;
  margin: 0.2rem 0 0;
}
.about1-more a {
  display: block;
  font-size: 14px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  background: #00a443;
}
@media (min-width: 1200px) {
  .about1 {
    padding: 0 0 7.5vw;
    background: url(../images/about1-bg.jpg) no-repeat 0 0 / cover;
  }
  .about1-main {
    display: flex;
    justify-content: space-between;
    padding: 0;
  }
  .about1-left {
    width: 38vw;
    padding: 18vw 0 0;
    text-align: right;
  }
  .about1-left .ch {
    font-size: 2vw;
    line-height: 2.4vw;
    color: #333;
  }
  .about1-left .en {
    margin: 0.5vw 0 0;
    font-size: 12px;
    line-height: 18px;
  }

  .about1-right {
    width: 58vw;
    padding: 12vw 12vw 4.5vw 6vw;
    background: url(../images/about1-box.jpg) no-repeat 0 0 / cover;
  }
  .about1-ad {
    font-weight: 600;
    font-size: 2.4vw;
    line-height: 2.6vw;
    text-align: left;
  }
  .about1-ad .en {
    color: #00a443;
    text-transform: uppercase;
  }

  .about1-ad .ch span {
    color: #333;
  }
  .about1-name {
    padding: 2.5vw 0;
    font-size: 1.5vw;
    line-height: 1.8vw;
    color: #333;
  }
  .about1-p {
    height: 8.4vw;
    overflow: hidden;
    font-size: 0.9vw;
    line-height: 1.4vw;
    color: #333;
  }
  .about1-more {
    width: 8.2vw;
    margin: 2vw 0 0;
  }
  .about1-more a {
    display: block;
    font-size: 0.8vw;
    line-height: 2vw;
    color: #fff;
    text-align: center;
    background: #00a443;
  }
}

/* .about2 */

.about2 {
  padding: 0.2rem;
  background: url(../images/about2-bg.jpg) no-repeat 0 0 / cover;
}

.about2-title {
  text-align: center;
}
.about2-title .en {
  font-size: 0.4rem;
  line-height: 0.48rem;
  color: rgba(0, 0, 0, 0.2);
}
.about2-title .ch {
  padding: 0.2rem 0;
  font-size: 0.3rem;
  line-height: 0.4rem;
  color: #333;
}
.about2-title img {
  width: 2rem;
}

.about2-ad {
  padding: 0.2rem 0 0;
  text-align: center;
}
.about2-ad .ch {
  font-size: 0.36rem;
  line-height: 0.48rem;
  color: #333;
}
.about2-ad .en {
  font-size: 12px;
  line-height: 18px;
  color: #333;
  text-transform: uppercase;
}

.about2-more {
  width: 1.6rem;
  margin: 0.2rem auto 0;
}
.about2-more a {
  display: block;
  font-size: 14px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  background: #00a443;
}
@media (min-width: 1200px) {
  .about2 {
    padding: 5vw 0 1vw;
    background: url(../images/about2-bg.jpg) no-repeat 0 0 / cover;
  }

  .about2-title {
    text-align: center;
  }
  .about2-title .en {
    font-size: 3vw;
    line-height: 3.6vw;
    color: rgba(0, 0, 0, 0.2);
  }
  .about2-title .ch {
    padding: 1.5vw 0;
    font-size: 1.5vw;
    line-height: 2vw;
    color: #333;
  }
  .about2-title img {
    width: 11.8vw;
  }

  .about2-ad {
    padding: 6vw 0 0;
    text-align: center;
  }
  .about2-ad .ch {
    font-size: 2.4vw;
    line-height: 3vw;
    color: #333;
  }
  .about2-ad .en {
    font-size: 1.2vw;
    line-height: 1.8vw;
    color: #333;
    text-transform: uppercase;
  }

  .about2-more {
    width: 8.2vw;
    margin: 10vw auto 0;
  }
  .about2-more a {
    display: block;
    font-size: 0.8vw;
    line-height: 2vw;
    color: #fff;
    text-align: center;
    background: #00a443;
  }
}

/* about3 */

.about3 {
  padding: 0.2rem 0 0;
}

.about3-title {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  margin: 0 auto;
  background: #00a443;
}
.about3-title-icon {
  width: 0.6rem;
}
.about3-title-icon img {
  width: 100%;
}

.about3-title-font {
  padding-left: 0.2rem;
  color: #fff;
}
.about3-title-font .ch {
  font-size: 0.36rem;
  line-height: 0.48rem;
}
.about3-title-font .en {
  font-size: 12px;
  line-height: 20px;
  text-transform: uppercase;
}

.about3-box {
  position: relative;
}
.about3-box ul {
  padding: 0 0.1rem;
}
.about3-box ul li {
  position: relative;
  padding: 0.1rem;
}
.about3-box ul i {
  display: block;
}
.about3-box ul img {
  width: 100%;
}
.about3-li-layer {
  position: absolute;
  z-index: 1;
  left: 0.4rem;
  top: 0.8rem;
  color: #333;
}
.about3-li-layer .big {
  font-size: 0.36rem;
  line-height: 0.4rem;
}
.about3-li-layer .small {
  padding: 0.1rem 0 0;
  font-size: 14px;
  line-height: 24px;
  text-transform: uppercase;
}
@media (min-width: 1200px) {
  .about3 {
    padding: 1.5vw 0 0;
  }
  .about3-main {
    display: flex;
  }
  .about3-title {
    display: flex;
    align-items: center;
    width: 20vw;
    padding: 0 0 0 2.5vw;
    background: #00a443;
  }
  .about3-title-icon {
    width: 3vw;
  }
  .about3-title-icon img {
    width: 100%;
  }

  .about3-title-font {
    padding-left: 1.2vw;
    color: #fff;
  }
  .about3-title-font .ch {
    font-size: 1.8vw;
    line-height: 2.4vw;
  }
  .about3-title-font .en {
    font-size: 0.9vw;
    line-height: 1.4vw;
    text-transform: uppercase;
  }

  .about3-box {
    width: 80vw;
  }
  .about3-box ul {
    display: flex;
    padding: 0;
  }
  .about3-box ul li {
    position: relative;
    padding: 0;
  }
  .about3-box ul i {
    display: block;
  }
  .about3-box ul img {
    width: 100%;
  }
  .about3-li-layer {
    position: absolute;
    z-index: 1;
    left: 2.5vw;
    top: 3vw;
    color: #333;
  }
  .about3-li-layer .big {
    font-size: 1.8vw;
    line-height: 2vw;
  }
  .about3-li-layer .small {
    padding: 0.5vw 0 0;
    font-size: 0.9vw;
    line-height: 1.2vw;
    text-transform: uppercase;
  }
}

.about4 {
  padding: 0.2rem;
  background: url(../images/about4-bg.jpg) no-repeat center bottom/cover;
}
.about4-main {
  width: 100%;
}
.about4-name {
  text-align: center;
}
.about4-name .ch {
  font-size: 0.6rem;
  line-height: 0.64rem;
  color: rgba(0, 0, 0, 0.2);
  text-transform: uppercase;
}
.about4-name .en {
  margin: 0.2rem 0 0;
  font-size: 0.3rem;
  line-height: 0.36rem;
  color: #333;
}

.about4-box {
  position: relative;
  margin: 0.2rem 0 0;
  padding: 0 0.6rem;
}
.about4-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 50%;
  width: 0.48rem;
  height: 0.48rem;
  margin-top: -0.24rem;
  background: #00a443;
  border-radius: 50%;
  cursor: pointer;
}
.about4-prev {
  left: 0;
}
.about4-next {
  right: 0;
}
.about4-btn img {
  width: 0.1rem;
}

.about4-banner .swiper-slide i {
  display: block;
  padding: 0 0.1rem;
}
.about4-banner .swiper-slide img {
  width: 100%;
}
@media (min-width: 1200px) {
  .about4 {
    padding: 5vw 0;
    background: url(../images/about4-bg.jpg) no-repeat center bottom/cover;
  }
  .about4-main {
    width: 62.4vw;
    margin: 0 auto;
  }
  .about4-name {
    text-align: center;
  }
  .about4-name .ch {
    font-size: 3vw;
    line-height: 3.6vw;
    color: rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
  }
  .about4-name .en {
    margin: 1vw 0 0;
    font-size: 1.5vw;
    line-height: 1.8vw;
    color: #333;
  }

  .about4-box {
    position: relative;
    margin: 3vw 0 0;
    padding: 0 3vw;
  }
  .about4-btn {
    width: 2.4vw;
    height: 2.4vw;
    margin-top: -1.2vw;
  }

  .about4-btn img {
    width: 0.6vw;
  }

  .about4-banner .swiper-slide i {
    padding: 0 1vw;
  }
}