body {
  width: 100vw;
  margin: 0px;
  padding: 0px;
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);
  background: #191919;
  overflow: hidden;
  overflow-y: auto;
}

.service {
  padding: 0.9375rem 1.25rem;
  color: #939393;
  font-size: 0.875rem;
  background: #191919;
}
.explain {
  padding: 0.9375rem 1.25rem;
  color: #939393;
  font-size: 0.875rem;
  background: #191919;
}
h3,
h4 {
  color: #939393;
}

p {
  line-height: 1.5;
  color: #939393;
}
.main-title {
  /* background: linear-gradient(transparent 70%, rgba(0,203,192,0.3) 30%); */
  font-size: 22px;
  font-weight: 600;
  color: #ffffff;
  position: relative;
  width: auto;
  display: inline-block;
}
.main-title > span {
  position: relative;
  z-index: 1;
  transform: translateZ(1px);
}
.title-bg {
  width: 100%;
  height: 8px;
  border-radius: 2px;
  position: absolute;
  bottom: 3px;
  background-color: rgba(0, 203, 192, 0.3);
}
.subtitle {
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 600;
  color: #939393;
}
.mar-top {
  margin-top: 20px;
}
/* li 标签为数字 */
.li-number {
  list-style-type: decimal;
  margin-top: 0.2rem;
}
/* li 标签为方块 */
.li-square {
  list-style-type: square;
}
.center {
  text-align: center;
}

strong {
  font-weight: 700;
}