header {
  width: 100%;
  height: 60px;
  background-color: rgba(0, 0, 0, 0.8);
  position: fixed;
  z-index: 999;
  top: 0;
}
.header-box {
  width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
  font-size: 16px;
  color: #fff;
  margin: 0 auto;
}
.logo-img {
  width: 160px;
  height: 38px;
}
.nav {
  display: flex;
}
.nav li {
  width: 100px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  position: relative;
}
.nav a {
  color: #fff;
}
.nav .active a {
  color: #ED6C00;
}
.nav .active::after {
  position: absolute;
  bottom: 0;
  width: 30px;
  height: 2px;
  background-color: #ED6C00;
  content: '';
  left: 50%;
  transform: translateX(-50%);
}
.banner {
  /* min-width: 1200px; */
  width: 100%;
}

.section {
  width: 1200px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
h3 {
  font-size: 24px;
  font-weight: bold;
  position: relative;
  display: inline-block;
  margin: 70px 0;
}
h3 .text1 {
  color: #9A9A9A;
}
h3 .text2 {
  color: #333333;
}
h3::after {
  position: absolute;
  content: '';
  width: 33px;
  height: 4px;
  left: 50%;
  bottom: -10px;
  transform: translateX(-50%);
  background-color: #ED6C00;
}
.about-img {
  width: 565px;
  height: 773px;
}
.about-box {
  width: 100%;
  height: 376px;
  background: rgba(243,241,239,0.82);
  position: absolute;
  top: 340px;
  font-size: 16px;
  padding: 0 40px;
}
.about-box p {
  margin-top: 105px;
  text-align: left;
  line-height: 42px;
}
.btn-more-wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}
.btn-more {
  width: 184px;
  height: 50px;
  background-color: #ED6C00;
  color: #fff;
  line-height: 50px;
  text-align: center;
}
.production-img {
  width: 100%;
}
.section2 {
  position: relative;
}
.section2-content {
  position: absolute;
  top: 0;
  text-align: center;
  width: 1200px;
  left: 50%;
  transform: translateX(-50%);
}
.section2-text {
  width: 517px;
  margin-left: 683px;
  text-align: left;
}
.production-name {
  font-size: 42px;
  font-weight: bold;
  line-height: 113px;
}
.pro-detail {
  font-size: 16px;
  line-height: 42px;
  margin-bottom: 80px;
}
.case-imgs {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.case-img {
  width: 580px;
  height: 340px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}
.case-img-text {
  position: absolute;
  color: #fff;
  font-size: 20px;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  line-height: 340px;
  letter-spacing: 2px;
  height: 100%;
  width: 100%;
  opacity: 1;
  background-color: rgba(17,17,17,0.6);
  /* transition: opacity 0.3s; */
}
/* .case-img-text:hover {
  cursor: pointer;
  opacity: 1;
} */

footer {
  background-color: #1A1A1A;
  padding: 68px 0;
}

.footer-content {
  width: 1200px;
  margin: 0 auto;
  display: flex;

}
.footer-content ul {
  margin-right: 86px;
}
.footer-content ul li {
  color: #fff;
  font-size: 16px;
  margin-bottom: 40px;
}
.footer-content ul li a {
  color: #8A8A8A;
}
.app-box p {
  text-align: center;
  color: #fff;
  margin-top: 46px;
}
.app-img {
  width: 136px;
  height: 136px;
}
.footer-info {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}
.footer-info .icon-gongan {
  width: 20px;
  height: 20px;
}
.footer-info .info1 {
  color: #fff;
  font-size: 14px;
  margin-left: 5px;
}
.footer-info .info2 {
  color: #fff;
  font-size: 14px;
  margin-left: 20px;
}