html, body, #app {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  color: #333;
  box-sizing: border-box;
}
div {
  box-sizing: border-box;
}

/* 盒子布局常用类 */
.fx {
  display: flex;
}
.fx-c {
  justify-content: center;
}
.fx-end {
  justify-content: end;
}
.fx-sa {
  justify-content: space-around;
}
.fx-sb {
  justify-content: space-between;
}
.fx-fw {
  flex-wrap: wrap;
}
.ai-fs {
  align-items: flex-start;
}
.ai-c {
  align-items: center;
}
.ai-fe {
  align-items: flex-end;
}
.fd-c {
  flex-direction: column;
}
.fd-row-reverse {
  flex-direction: row-reverse;
}
.fx-1 {
  flex: 1;
}
.w-100 {
  width: 100%;
}
.color-white {
  color: #fff;
}
.color-light {
  color: #004FAA;
}
.cursor-pointer {
  cursor: pointer;
}

.top {
  width: 100%;
  padding: 10px 20px;
  box-sizing: border-box;
  box-shadow: 0px 3px 3px #eee;
}
.top-logo {
  width: 60px;
  height: 60px;
  background: url(../img/logo-60x60.jpg) no-repeat;
  background-size: cover;
}
.app-name {
  font-size: 16px;
  margin-left: 12px;
}
.app-desc {
  font-size: 14px;
  margin-left: 12px;
  opacity: 0.6;
}
.top-download {
  width: 24px;
  height: 24px;
  background: url(../img/cloud-arrow-down@2x.png) no-repeat;
  background-size: cover;
}
.content {
  overflow-y: auto;
  position: relative;
}
img {
  display: block;
  width: 100%;
  height: 100%;
}
.user-info-name {
  font-weight: bold;
}
.user-chat-nav {
  width: 100%;
  height: 50px;
  border-radius: 25px;
  color: #fff;
  background-color: #004FAA;
  box-shadow: 0px 4px 12px 0px rgba(0,0,0,0.1);
}
.user-chat-nav.default {
  margin-bottom: 16px;
  color: #333;
  background-color: #fff;
}
.pc .content-middle {
  width: 680px;
  margin-top: 36px;
  padding: 30px;
  box-sizing: border-box;
  border-radius: 36px;
  box-shadow: 0px 4px 24px 0px rgba(0,0,0,0.15);
}

.pc .user-info-avatar>img {
  border-radius: 5px;
  box-shadow: 0px 4px 4px 0px rgba(0,0,0,0.25);
}
/* bottom */

.bottom-link {
  position: fixed;
  width: 100%;
  height: 40px;
  bottom: 0;
  left: 0;
  background-color: #333;
}
.browser-pic {
  width: 60px;
  height: 60px;
  background: url(../img/browser.png) no-repeat;
  background-size: cover;
}
.bottom-link-nav-primary {
  height: 32px;
  padding: 5px 25px;
  font-size: 14px;
  border-radius: 18px;
  box-sizing: border-box;
  color: #fff;
  background-color: #004FAA;
}
.bottom-link-nav-default {
  height: 32px;
  padding: 5px 25px;
  font-size: 14px;
  border-radius: 18px;
  box-sizing: border-box;
  color: #333;
  background-color: #eee;
}
.overlay-open-type {
  visibility: hidden;
  position: fixed;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.2);
  backdrop-filter: saturate(50%) blur(2px);
}
.open-type-list {
  padding: 10px 30px 20px 30px;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  background-color: #fff;
}

.close {
  width: 16px;
  height: 16px;
  background: url(../img/close@2x.png) no-repeat;
  background-size: cover;
  cursor: pointer;
}

.notice-overlay {
  display: none;
  position: fixed;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.1);
  backdrop-filter: saturate(50%) blur(2px);
}
.notice-overlay-inner {
  width: 80%;
  max-width: 480px;
  height: 100px;
  padding: 10px;
  border-radius: 10px;
  background-color: #fff;
}
.overlay-active {
  display: flex;
}
.overlay-inactive {
  display: none;
}