body,
ol,
ul,
li,
h1,
h2,
h3,
h4,
h5,
h6,
p,
th,
td,
dl,
dd,
form,
fieldset,
legend,
input,
textarea,
select {
  margin: 0;
  padding: 0;
}

img {
  border: 0;
  vertical-align: top;
}

li {
  list-style: none;
}

iframe {
  border: none;
}

html {
  height: 100%;
  font-size: 16px;
}

body {
  line-height: 1;
  background: #f2f2f2;
  font-weight: 400;
  font-family: "Microsoft Yahei", "PingFang SC", "Avenir", "Segoe UI",
    "Hiragino Sans GB", STHeiti, "Microsoft Sans Serif", "WenQuanYi Micro Hei",
    sans-serif;
}

a {
  color: #333;
  text-decoration: none;
  cursor: pointer;
}

a:hover {
  color: var(--color-blue);
  text-decoration: underline;
}

/*
***
公共类
***
*/

/* flex相关 */
.flex-row {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.flex-column {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flex-1 {
  flex: 1;
}

.flex-wrap {
  flex-wrap: wrap;
}

.space-between {
  justify-content: space-between;
}

.space-evenly {
  justify-content: space-evenly;
}

.space-around {
  justify-content: space-around;
}

.space-center {
  justify-content: center;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-stretch {
  justify-content: stretch;
}

.justify-content-start {
  justify-content: flex-start;
}

.justify-content-end {
  justify-content: flex-end;
}

.align-items-stretch {
  align-items: stretch;
}

.align-items-start {
  align-items: flex-start;
}

.align-items-end {
  align-items: flex-end;
}

.align-content-start {
  align-content: flex-start;
}

.align-content-end {
  align-content: flex-end;
}

.align-content-center {
  align-content: center;
}

.align-content-space-around {
  align-content: space-around;
}

.align-content-space-between {
  align-content: space-between;
}

/* end flex相关 */

/* 其他相关 */

.tt-layout {
  width: 1200px;
  margin: 0 auto;
}

/* 图标大小  */
.icon-size-14 {
  width: 14px;
  height: 14px;
}

.icon-size-16 {
  width: 16px;
  height: 16px;
}

.icon-size-20 {
  width: 20px;
  height: 20px;
}

/* end 图标大小  */

.box-shadow-1 {
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

.border-radius-5 {
  border-radius: 5px;
  overflow: hidden;
}

.border-radius-8 {
  border-radius: 8px;
  overflow: hidden;
}

.border-bottom-1 {
  border-bottom: 1px solid #ccc;
}

.font-weight-bold {
  font-weight: bold;
}

.font-weight-400 {
  font-weight: 400;
}

.font-weight-300 {
  font-weight: 300;
}

/* end 其他相关 */

/* 背景色 */
.bg-color-white {
  background: #fff !important;
}

.bg-color-grey {
  background: #e6e6e6 !important;
}

.bg-color-blue {
  background: #3172ce !important;
}

.bg-color-red {
  background: #cc2929 !important;
}

.bg-color-orange {
  background: #ff861f !important;
}

.bg-color-gc {
  background: linear-gradient(142deg, #ffb73d 0%, #fe5300 100%);
}

/* end 背景色 */

/* 字体颜色 */
.font-color-white {
  color: #fff !important;
}

.font-color-black {
  color: #333 !important;
}

.font-color-grey {
  color: #d9d9d9 !important;
}

.font-color-grey2 {
  color: #666 !important;
}

.font-color-blue {
  color: #3172ce !important;
}

.font-color-red {
  color: #cc2929 !important;
}

.font-color-orange {
  color: #ff861f !important;
}

/* end 字体颜色 */

/* 字体大小 */

.font-size-20 {
  font-size: 20px !important;
}

.font-size-18 {
  font-size: 18px !important;
}

.font-size-16 {
  font-size: 16px !important;
}

.font-size-14 {
  font-size: 14px !important;
}

.font-size-12 {
  font-size: 12px !important;
}

/* end  字体大小 */

/*
***
end 公共类
***
*/

/* css 变量 */
:root {
  --color-blue: #3172ce;
}

/* end css 变量 */
