.d_flex {
  display: flex;
}
.ai_c {
  align-items: center;
}
.jc_sb {
  justify-content: space-between;
}
.jc_sa {
  justify-content: space-around;
}
.d_flex_center {
  display: flex;
  justify-content: center;
  align-items: center;
}
a {
  text-decoration: none;
  background-color: transparent;
  color: none;
}
/* ==================
          布局
 ==================== */
/*  -- flex弹性布局 -- */
.flex {
  display: flex !important;
}
.basis-xs {
  flex-basis: 20%;
}
.basis-sm {
  flex-basis: 40%;
}
.basis-df {
  flex-basis: 50%;
}
.basis-lg {
  flex-basis: 60%;
}
.basis-xl {
  flex-basis: 80%;
}
.flex-sub {
  flex: 1;
}
.flex-twice {
  flex: 2;
}
.flex-treble {
  flex: 3;
}
.flex-five {
  flex: 5;
}
.flex-seven {
  flex: 7;
}
.flex-eight {
  flex: 8;
}
.flex-nine {
  flex: 9;
}
.flex-direction {
  flex-direction: column;
}
.flex-reverse {
  flex-direction: row-reverse;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.align-start {
  align-items: flex-start;
}
.align-end {
  align-items: flex-end;
}
.align-center {
  align-items: center;
}
.align-stretch {
  align-items: stretch;
}
.self-start {
  align-self: flex-start;
}
.self-center {
  align-self: flex-center;
}
.self-end {
  align-self: flex-end;
}
.self-stretch {
  align-self: stretch;
}
.align-stretch {
  align-items: stretch;
}
.justify-start {
  justify-content: flex-start;
}
.justify-end {
  justify-content: flex-end;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.justify-around {
  justify-content: space-around;
}
.align-content-around {
  align-content: space-around;
}
.text-cut {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.text-bold {
  font-weight: bold;
}
.text-center {
  text-align: center;
}
.text-end {
  text-align: end;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.relative {
  position: relative !important;
}
.absolute {
  position: absolute !important;
}
.m10 {
  margin: 10px;
}
@media (min-width: 1920px) {
  .container {
    max-width: 1920px;
  }
}