/* css reset */
body,
p,
h1,
h2,
h3,
h4,
h5,
h6,
dl,
dd {
  margin: 0;
  -webkit-text-size-adjust: 100%; 
}

body {
  font-size: 14px;
  font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma, Arial, PingFang SC-Light, Microsoft YaHei;
  /* font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; */
  font-variant-numeric: tabular-nums; 
}

*, *::before, *::after {
  box-sizing: border-box;
}

ol,
ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

input, textarea {
  padding: 0;
  margin: 0;
}

img {
  border: none;
  vertical-align: top;
}

a {
  text-decoration: none;
}

a,
input,
button {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0); 
  -webkit-appearance: none;
}

.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-row {
  display: flex;
  flex-direction: row;
}
.justify-start {
  display: flex;
  justify-content: flex-start;
}
.justify-center {
  display: flex;
  justify-content: center;
}
.justify-end {
  display: flex;
  justify-content: flex-end;
}
.justify-evenly {
  display: flex;
  justify-content: space-evenly;
}
.justify-around {
  display: flex;
  justify-content: space-around;
}
.justify-between {
  display: flex;
  justify-content: space-between;
}
.align-start {
  display: flex;
  align-items: flex-start;
}
.align-center {
  display: flex;
  align-items: center;
}
.align-end {
  display: flex;
  align-items: flex-end;
}

button {
  margin: 0;
  padding: 0;
  outline: none;
  border: none;
}
