/* region title */
.section-title {
  padding-bottom: 30px;
  text-align: center;
}
.section-title-inner {
  display: inline-block;
  padding: 0 166px;
  font-size: 28px;
  line-height: 30px;
  color: #333;
  background-image: url(../images/about/abouthwc-title-bg-left.png), url(../images/about/abouthwc-title-bg-right.png);
  background-position: left center, right center;
  background-repeat: no-repeat, no-repeat;
  background-size: 140px auto, 140px auto;
}
@media (max-width: 767px) {
  .section-title {
    padding-bottom: 15px;
  }
  .section-title-inner {
    padding: 0 88px;
    background-image: url(../images/about/abouthwc-title-bg-left-mb.png), url(../images/about/abouthwc-title-bg-right-mb.png);
    background-size: 85px auto, 85px auto;
    font-size: 20px;
    line-height: 25px;
  }
}

/* region layout */
.section-container {
  padding: 60px 0;
}
.section-wrapper {
  max-width: 1200px;
  padding: 0 10px;
  margin-left: auto;
  margin-right: auto;
}
.section-wrapper:before,
.section-wrapper:after {
  content: "";
  display: table;
}
.section-wrapper:after {
  clear: both;
}
@media (max-width: 767px) {
  .section-container {
    padding: 30px 0;
  }
  .section-wrapper {
    padding: 0;
  }
}
/* endregion layout */
/* region introduction */
.introduction-container {
  background: #fff;
}
.introduction-image-list {
  overflow: hidden;
  height: 353px;
  font-size: 0;
  line-height: 353px;
}
.introduction-image-list li {
  float: left;
  width: 25%;
  height: 100%;
  background-position: center center;
  background-size: cover;
}
.introduction-image-list li:nth-child(1) {
  background-image: url(../images/about/abouthwc-introduction1.jpg);
}
.introduction-image-list li:nth-child(2) {
  background-image: url(../images/about/abouthwc-introduction2.jpg);
}
.introduction-image-list li:nth-child(3) {
  background-image: url(../images/about/abouthwc-introduction3.jpg);
}
.introduction-image-list li:nth-child(4) {
  background-image: url(../images/about/abouthwc-introduction4.jpg);
}
.introduction-image-cover {
  height: 100%;
  background-color: rgba(72, 81, 105, 0.3);
  text-align: center;
}
.introduction-image-cover-text {
  display: inline-block;
  vertical-align: middle;
  color: #fff;
}
.introduction-image-cover-text h2 {
  font-size: 50px;
  line-height: 58px;
}
.introduction-image-cover-text p {
  font-size: 18px;
  line-height: 30px;
}
.introduction-text {
  margin-top: 43px;
  text-align: justify;
}
.introduction-text p {
  font-size: 16px;
  line-height: 28px;
  color: #333;
}
.introduction-text p em {
  font-style: normal;
  font-size: 28px;
}
.introduction-text p + p {
  margin-top: 14px;
}
@media (max-width: 767px) {
  .introduction-image-list {
    height: 306px;
    line-height: 153px;
  }
  .introduction-image-list li {
    width: 50%;
    height: 50%;
  }
  .introduction-image-list li:nth-child(1) {
    background-image: url(../images/about/abouthwc-introduction-mb1.jpg?sttl=0817007);
  }
  .introduction-image-list li:nth-child(2) {
    background-image: url(../images/about/abouthwc-introduction-mb2.jpg?sttl=0817007);
  }
  .introduction-image-list li:nth-child(3) {
    background-image: url(../images/about/abouthwc-introduction-mb3.jpg?sttl=0817007);
  }
  .introduction-image-list li:nth-child(4) {
    background-image: url(../images/about/abouthwc-introduction-mb4.jpg?sttl=0817007);
  }
  .introduction-image-cover-text h2 {
    margin-bottom: 10px;
    font-size: 35px;
    line-height: 29px;
  }
  .introduction-image-cover-text p {
    font-size: 14px;
    line-height: 15px;
  }
  .introduction-text {
    margin-top: 20px;
    padding: 0 25px;
  }
  .introduction-text p {
    font-size: 14px;
    line-height: 24px;
  }
  .introduction-text p em {
    font-size: 18px;
  }
}
/* endregion introduction */
.ecology-container {
  background: #F9FAFD;
}
.ecology-title {
  margin-bottom: 20px;
  font-size: 28px;
  line-height: 30px;
  color: #333;
}
.ecology-text {
  float: left;
  width: calc(100% - 495px);
  color: #333;
  text-align: justify;
}
.ecology-text p {
  font-size: 16px;
  line-height: 28px;
}
.ecology-text p + p {
  margin-top: 14px;
}
.ecology-video {
  float: right;
  width: 495px;
  padding-left: 30px;
}
.ecology-video-inner {
  display: block;
  position: relative;
  margin-top: 6px;
  height: 314px;
  overflow: hidden;
  cursor: pointer;
}
.ecology-video-inner i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 48px;
  margin-left: -30px;
  margin-top: -24px;
  background: url(../images/about/abouthwc-video-play-btn.png) no-repeat;
  background-size: 100% auto;
}
.ecology-video-bg {
  height: 100%;
  background: url(../images/about/abouthwc-video.png) center;
  background-size: cover;
  transition: .2s;
}
.ecology-video-bg:before {
  content: "";
  display: block;
  height: 100%;
  background: #000;
  opacity: 0;
  transition: .2s;
}
.ecology-video-bg:hover {
  transform: scale(1.1);
}
.ecology-video-bg:hover:before {
  opacity: 0.6;
}
@media (max-width: 991px) {
  .ecology-title {
    margin-bottom: 0;
    text-align: center;
  }
  .ecology-video {
    float: none;
    padding: 15px;
    margin-left: auto;
    margin-right: auto;
  }
  .ecology-text {
    float: none;
    width: auto;
    padding: 5px 25px;
  }
}
@media (max-width: 767px) {
  .ecology-title {
    font-size: 20px;
    line-height: 25px;
    text-align: center;
  }
  .ecology-video {
    float: none;
    width: auto;
    padding: 15px;
  }
  .ecology-video-inner {
    height: 172px;
    margin-top: 0;
  }
  .ecology-video-inner i {
    width: 46px;
    height: 36px;
    margin-left: -23px;
    margin-top: -18px;
  }
  .ecology-video-bg {
    background-image: url(../images/about/abouthwc-video-mb.png);
  }
  .ecology-text {
    float: none;
    width: auto;
    padding: 5px 25px;
  }
  .ecology-text p {
    font-size: 14px;
    line-height: 24px;
  }
}
.closing-text {
  color: #333;
}
.closing-text h2 {
  margin-bottom: 20px;
  font-size: 28px;
  line-height: 30px;
}
.closing-text p {
  font-size: 16px;
  line-height: 28px;
}
.closing-text p + p {
  margin-top: 14px;
}
@media (max-width: 991px) {
  .closing-text h2 {
    text-align: center;
  }
}
@media (max-width: 767px) {
  .closing-text h2 {
    padding: 0 15px;
    margin-bottom: 15px;
    font-size: 20px;
    line-height: 25px;
    text-align: center;
  }
  .closing-text p {
    padding-left: 25px;
    padding-right: 25px;
    font-size: 14px;
    line-height: 24px;
  }
  .closing-text p + p {
    margin-top: 14px;
  }
}