:root {
  --theme-color: #2778FF;
  --theme-color-text: #ffffff;
  --main-text-color: #1F2329;
  --minor-text-color: #646A73;
  --content-width: 1200px;
}

/* 适用于Chrome/Safari/Edge等Webkit内核浏览器 */
::-webkit-scrollbar {
  width: 0 !important;
  height: 5px !important;
  display: none;
}

/* 火狐专用方案 */
html {
  scrollbar-width: none !important;
  overflow-y: auto;
}

/* IE10+方案 */
body {
  -ms-overflow-style: none;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd,
ul,
ol,
li,
pre,
fieldset {
  margin: 0;
  padding: 0;
  list-style: none;
  border: none;
  background: none;
}

body {
  padding-top: 64px;
  box-sizing: border-box;
  min-width: 1280px;
}

img,
picture,
video,
canvas,
svg {
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

.yqt-flex {
  display: flex;
}

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

.yqt-flex-column {
  flex-direction: column;
}

.yqt-flex-justify-center {
  justify-content: center;
}

.yqt-flex-align-end {
  align-items: flex-end;
}

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

.yqt-flex-column-center {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.yqt-flex-center-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

::-webkit-scrollbar-track-piece {
  background-color: #f8f8f8;
}

::-webkit-scrollbar {
  width: 0;
  height: 5px;
}

::-webkit-scrollbar-thumb {
  background-color: var(--theme-color);
  background-clip: padding-box;
  min-height: 28px;
  border-radius: 25px;
}

.section-title {
  font-weight: bold;
  font-size: 36px;
  width: 100%;
  text-align: center;
  color: var(--main-text-color);
  margin-top: 80px;
}

.section-subhead {
  font-size: 18px;
  width: 100%;
  text-align: center;
  color: var(--minor-text-color);
  margin-top: 15px;
}