* {
  outline: 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);
  background-color: #fff;
  color: #333;
  user-select: none;
}

/* 左右浮动 */
.fl {
  float: left;
}

.fr {
  float: right;
}

/* 清除浮动 */
.clearfix:after {
  content: ".";
  display: block;
  height: 0;
  visibility: hidden;
  clear: both;
}

.clearfix {
  *zoom: 1;
}

/* 一行文本隐藏 */
.ellipsis {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 两行文本隐藏 */
.ellipsis_two {
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
/* 三行文本隐藏 */
.ellipsis_three {
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* 顶部导航栏 */
.unified-header {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 4.4rem;
  padding: 0 1.5rem;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #fff;
  z-index: 99;
}

.unified-header-link {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.unified-header-link-img {
  width: 9px;
  height: auto;
}

.unified-header-text {
  width: 100%;
  height: auto;
  font-size: 1.8rem;
  font-weight: bold;
  text-align: center;
  padding-right: 2.2rem;
  box-sizing: border-box;
}

/* 底部导航栏 */
.tabbar {
  position: fixed;
  top: auto;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 5rem;
  background-color: #fff;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 99;
  box-shadow: 0 1px 6px 1px rgba(0, 0, 0, 0.16);
}

.tabbar-item {
  display: block;
  text-align: center;
  line-height: 0;
  color: #222;
}
.tabbar_project,
.tabbar_major,
.tabbar_course,
.tabbar_entryCenter,
.tabbar_mine {
  display: none;
}

.tabbar-item .tabbar-item-img {
  display: block;
  margin: 0 auto;
  width: 2rem;
  height: 2rem;
}

.tabbar-item-text {
  display: block;
  width: 100%;
  height: 1.4rem;
  margin-top: 0.5rem;
  font-size: 12px;
  line-height: 1.4rem;
}

.tabbar .tabbar-item-active {
  color: #3586f9;
}

/* 按钮统一样式 */
.btn-default {
  display: block;
  width: 32rem;
  height: 4.4rem;
  font-size: 1.6rem;
  font-weight: bold;
  background: #3586f9;
  border: none;
  outline: none;
  border-radius: 5px;
  color: #fff;
}

.btn-default:active {
  transform: translate(0.5px, 0.5px);
}

/* iphonex底部适配 */
@supports (bottom: env(safe-area-inset-bottom)) {
  .tabbar {
    box-sizing: content-box;
    padding-bottom: constant(safe-area-inset-bottom);
    padding-bottom: env(safe-area-inset-bottom);
  }
}

@media screen and (min-width: 640px) {
  html,
  body {
    max-width: 375px;
    min-height: 667px;
  }

  html {
    margin: 10px auto 0 !important;
    box-shadow: 0 0 8px 3px rgb(0 0 0 / 10%);
    border-radius: 5px;
  }

  .tabbar {
    max-width: 375px;
    left: 50%;
    transform: translateX(-50%);
  }

  .unified-header {
    width: 375px;
    left: 50%;
    transform: translateX(-50%);
  }
}

/* 模拟骨架屏start */
.skeleton {
  background-image: linear-gradient(90deg, #ececec 25%, #e6e6e6 37%, #ececec 63%);
  list-style: none;
  background-size: 400% 100%;
  background-position: 100% 50%;
  animation: skeleton-animation 1.4s linear infinite;
  border-radius: 2px;
}

@keyframes skeleton-animation {
  0% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0 50%;
  }
}

/* 模拟骨架屏end */

/* 图片loading效果start */
.img-box {
  position: relative;
  width: 100%;
  height: auto;
}

.img-box::before {
  content: "";
  display: block;
  width: 100%;
  background: #f8f8f8 url("/zlm/img/loading.gif") center center no-repeat;
  background-size: 2rem auto;
}

/* 图片loading效果end */

/* 缺醒图start */
.no-data-wrap {
  display: none;
  margin: 0 auto;
  width: 24.3rem;
  height: auto;
}

.no-data-img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
  z-index: 5;
}

.no-data-text {
  margin-top: 2rem;
  font-size: 1.8rem;
  color: #b8babe;
  text-align: center;
}

/* 缺醒图end */

/* 浏览器限制提示样式 */
.wrap-tips {
  width: 100%;
  height: auto;
  margin-top: 35%;
}

.wrap-tips .tips-img {
  display: block;
  width: 5rem;
  height: auto;
  margin: 0 auto;
}

.wrap-tips .tips-text {
  text-align: center;
  line-height: 3rem;
  font-size: 1.7rem;
  margin-top: 2rem;
}

.wrap-tips .tips-copy-text {
  width: 57%;
  height: 3rem;
  text-align: center;
  line-height: 3rem;
  background-color: #3586f9;
  color: #fff;
  border-radius: 0.5rem;
  margin: 2rem auto 300px;
}

.course-item-img {
  display: block;
  width: 15.5rem;
  height: 9.5rem;
  object-fit: cover;
  border-radius: 5px;
  overflow: hidden;
  flex-shrink: 0;
}