ul,
ol {
  list-style: none;
}
#banner-box {
  position: relative;
  width: 100%;
  height: inherit;
}
.container-fluid {
  position: relative;
  padding: 0;
}

.box-flex-column {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.box-flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.box-flex-wrap {
  flex-wrap: wrap;
}

.box-flex-row {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.row {
  margin-right: -15px;
  margin-left: -15px;
}

h2 {
  font-weight: 500;
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 0.24rem;
  color: rgba(20, 20, 20, 1);
  line-height: 0.34rem;
  text-align: center;
}

.english {
  font-size: 0.15rem;
  font-family: Ayuthaya;
  color: rgba(176, 176, 176, 1);
  line-height: 0.2rem;
  text-align: center;
}

.banner_tree {
  width: 100%;
  height: 700px;
  position: absolute;
  bottom: 0;
  overflow: hidden;
}

.color_font {
  color: #fff;
  width: 45px;
  height: 45px;
  font-size: 24px;
  text-align: center;
  border-radius: 5px;
  font-weight: 700;
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto;
  z-index: 50;
  cursor: pointer;
}
.color_font img {
  width: 100%;
  height: 100%;
}

.left_btn {
  left: 0;
}
.right_btn {
  right: 0;
}