html {
  font-size: calc(100vw/19.2);
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scrollbar-width: thin;
}
@media (min-width: 1901px) {
  html {
    font-size: 100px;
  }
}
@media (max-width: 1580px) {
  html {
    font-size: calc(100vw / 21);
  }
}
@media (max-width:1280px) {
  html {
    font-size: calc(100vw / 19.3);
  }
}
@media (max-width: 767px) {
  html {
    font-size: calc(100vw/15);
  }
}
@media (max-width:480px) {
  html {
    font-size: calc(100vw/7.5);
  }
}

.dark {
  --sb-track-color: #2c2c2c;
  --sb-thumb-color: #6b6b6b;
  --sb-size: 2px;

  scrollbar-color: var(--sb-thumb-color) 
                   var(--sb-track-color);
}

.dark::-webkit-scrollbar {
  width: var(--sb-size) 
}

.dark::-webkit-scrollbar-track {
  background: var(--sb-track-color);
  border-radius: 10px;
}

.dark::-webkit-scrollbar-thumb {
  background: var(--sb-thumb-color);
  border-radius: 10px;
}

html {
  overflow-y: scroll; //这是为了兼容ie8，不支持:root, vw
}

:root {
  overflow-y: auto;
  overflow-x: hidden;
}

:root body {
  width: 100%;
  position: absolute;
}

body {
  width: 100%;
  overflow: hidden;
}


/* @font-face {
  font-family: 'Robot';
  src: url('@/assets/font/Roboto-Medium.ttf');
}
@font-face {
  font-family: 'RobotM';
  src: url('@/assets/font/Roboto-Medium.ttf');
}
@font-face {
  font-family: 'RobotR';
  src: url('@/assets/font/Roboto-Regular.ttf');
}

@font-face {
  font-family: 'RobotL';
  src: url('@/assets/font/Roboto-Light.ttf');
}
@font-face {
  font-family: 'RobotB';
  src: url('@/assets/font/Roboto-Bold.ttf');
} */
body {
  font-family: 'RobotR';
}

.robotR {
  font-family: 'RobotR';
}

.robotL {
  font-family: 'RobotL';
}

.robotM {
  font-family: 'RobotM';
}

.robotB {
  font-family: 'RobotB';
}

.dhTime { -webkit-transition: all .3s ease; -o-transition: all .3s ease; transition: all .3s ease; }