.content-bg {
  background-color: #fff;
}
.m1 {
  position: relative;
  padding: 4rem 0;
  padding-top: 6rem;
  padding-bottom: 100px;
  margin-bottom: 100px;
  display: flex;
  justify-content: space-between;
  background-color: #fff;
}
.m1-l {
  width: 60%;
}
.m1-l-h {
  font-size: 2rem;
  margin-bottom: 2rem;
}
.m1-l-c {
  line-height: 2rem;
  padding: 1rem 0;
  font-size: 1.2rem;
}
.m1-r {
  display: flex;
  width: 40%;
  text-align: center;
  align-items: flex-end;
  justify-content: center;
}
.m1-r img {
  width: 100%;
  max-width: 400px;
}
.m1-b {
  display: inline-flex;
  align-items: center;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 70px;
  padding: 0 1rem;
  box-sizing: border-box;
  background-color: #fff;
  cursor: pointer;
  vertical-align: middle;
  color: #ffab48;
}
.m1-b img {
  height: 100%;
  padding: 0 1rem;
}
.m1-b-line {
  flex: 1;
  height: 1px;
  background-color: rgba(255, 171, 72, 0.5);
}
.m1-b span {
  color: #ffab48;
}
.m2 {
  background: url(../images/canping/yinlibo/di01_dong.jpg) no-repeat;
  background-size: 100% 100%;
  padding: 6rem 1rem;
}
.m2-title {
  margin-bottom: 6rem;
  line-height: 2rem;
  font-size: 2rem;
  text-align: center;
  color: #333;
  letter-spacing: 2px;
}
.m2-c {
  display: flex;
  justify-content: space-between;
  padding: 0 2rem;
}
.m2-features {
  position: relative;
  overflow: hidden;
  width: 47%;
  padding: 2rem 4rem;
  box-sizing: border-box;
  margin: 1.5rem 1rem;
  background: linear-gradient(to right, #b2aaf0, #6165d6);
  color: #fff;
  border-radius: 5px;
}
.m2-features-icon {
  position: relative;
  z-index: 2;
  height: 5rem;
  color: #fff;
}
.m2-features-icon img {
  height: 100%;
}
.m2-features h2 {
  position: relative;
  z-index: 2;
  margin-top: 2rem;
  letter-spacing: 2px;
}
.m2-features p {
  position: relative;
  z-index: 2;
  margin-top: 2rem;
  line-height: 2rem;
  font-size: 1.1rem;
  color: #eee;
  height: 6rem;
}
.m2-features::after {
  z-index: 0;
  position: absolute;
  content: '';
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  transform: scaleX(0);
  transform-origin: center left;
  transition: transform 1s ease, background-color 1s ease;
  background-color: #b2aaf0;
}
.m2-features:hover::after {
  transform-origin: center right;
  transform: scaleX(1);
  background-color: #6165d6;
}
.m3 {
  padding: 6rem 1rem;
}
.m3-title {
  margin-bottom: 6rem;
  line-height: 2rem;
  font-size: 2rem;
  text-align: center;
  color: #333;
  letter-spacing: 2px;
}
.m3-c {
  display: flex;
  justify-content: space-between;
}
.m3-features {
  width: 30%;
  padding: 3rem 2rem;
  box-sizing: border-box;
  text-align: center;
  box-shadow: 0 0 15px 3px #e6e6e6;
}
.m3-features-icon {
  height: 8rem;
}
.m3-features-icon img {
  height: 100%;
}
.m3-features h2 {
  margin-top: 2rem;
  color: #333;
  font-size: 2rem;
}
.m3-features p {
  margin-top: 2rem;
  line-height: 1.5rem;
}
@media (min-width: 601px) and (max-width: 1000px) {
  .m1,
  .m2,
  .m3,
  .m4 {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .m2-b-item {
    width: 50%;
  }
}
@media (max-width: 600px) {
  .m1,
  .m2,
  .m3,
  .m4 {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .m1 {
    flex-wrap: wrap;
  }
  .m1-l {
    width: 100%;
  }
  .m1-r {
    width: 100%;
  }
  .m2-t-item {
    width: 120px;
    height: 120px;
    margin: 0 1rem;
    margin-bottom: 2rem;
  }
  .m2-c {
    padding: 0 1rem;
    flex-wrap: wrap;
  }
  .m2-features {
    width: 100%;
    padding: 1rem;
  }
  .m3-features {
    padding: 1rem;
  }
  .m3-features-icon {
    height: 4rem;
  }
  .m3-features h2 {
    font-size: 1.5rem;
  }
}