/* .banner{
  height: 560px;
  width: 100%;
  min-width: 1200px;
  background: url(../img/banner.png) center center no-repeat;
  background-size: cover;
} */
.container {
  position: absolute;
  top: 80px;
  bottom: 80px;
  left: 0;
  right: 0;
}

.banner{
  position: relative;
  height: 420px;
  width: 100%;
  min-width: 1200px;
  background: linear-gradient(135deg, #7C3AED 0%, #A78BFA 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.banner::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.banner::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  transform: rotate(45deg);
}

.banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #ffffff;
}

.banner-title {
  font-size: 48px;
  font-weight: bold;
  line-height: 1.2;
  margin: 0 0 20px 0;
  letter-spacing: 2px;
}

.banner-subtitle {
  font-size: 24px;
  line-height: 1.5;
  margin: 0;
  opacity: 0.95;
  font-weight: 300;
}

.container .main-cont {
  padding: 80px 0 160px;
  overflow: hidden;
}

.main-tit{    
  font-size: 40px;
  line-height: 56px;
  color: #000000;
  letter-spacing: 0;
  text-align: center;
}
.main-des{
  width: 945px;    
  font-size: 18px;
  color: #000000;
  letter-spacing: 0;
  text-align: center;
  line-height: 32px;
  margin: 24px auto 0;
}
.main-pic{
  width: 1200px;
  height: 388px;
  margin-top: 60px;
}