#app::before {
  display: block;
  content: "";
  position: absolute;
  right: 0;
  top: 80px;
  width: 706px;
  height: 290px;
  background-image: url(/static/image/lower_bg.png);
  background-size: cover;
  background-repeat: no-repeat;
}

.app-title {
  flex-wrap: wrap;
  align-items: center;
  /* justify-content: center; */
}

.app-title-text2 {
  margin-top: 40px;
  margin-right: 144px;
}

.coursesList-top {
  display: flex;
  align-items: center;
  min-width: 260px;
  margin-top: 40px;
}

@media screen and (max-width: 630px) {
  .coursesList-top {
    margin: 0 auto;
    margin-top: 40px;
  }
}

.coursesList-top-title {
  display: flex;
  align-items: center;
}

.coursesList-top-title-icon {
  width: 56px;
  height: 56px;
}

.coursesList-top-title-icon img {
  display: block;
  width: 100%;
  height: 100%;
}

.coursesList-top-title-text {
  margin-left: 16px;
  margin-right: 64px;
  font-family: PingFang SC, PingFang SC;
  font-weight: 600;
  font-size: 24px;
  color: #000000;
  line-height: 1;
}

.coursesList-top-tab {
  display: flex;
  border-radius: 5px;
  overflow: hidden;
  position: relative;
}

.coursesList-top-tab-item {
  font-family: PingFang SC, PingFang SC;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  cursor: pointer;
  margin-right: 40px;
  font-size: 17px;
  color: #000000;
  line-height: 18px;
}

.coursesList-top-tab::before {
  content: "";
  width: 50%;
  height: 100%;
  display: block;
  left: 0;
  top: 0;
  position: absolute;
  /* background-color: var(--color-base2); */
  z-index: 1;
  transition: all 0.2s;
}

.coursesList-top-tab.beforeRight::before {
  left: 50%;
}

.coursesList-top-tab-item.active {
  color: var(--color-base2);
}

.coursesList-container {
  margin-top: 0.8rem;
  margin-bottom: 80px;
}
/* 课程item */
.coursesList-container-item {
  background: #ffffff;
  box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.08);
  border-radius: 8px 8px 8px 8px;
  padding: 24px;
  /* padding-right: 136px; */
  box-sizing: border-box;
  display: flex;
  position: relative;
  margin-bottom: 16px;
}

.coursesList-container-item-image {
  width: 250px;
  height: 150px;
  border-radius: 4px;
  overflow: hidden;
  margin-right: 30px;
}

.coursesList-container-item-image img {
  width: 100%;
  height: 100%;
  display: block;
}

.coursesList-container-item-info {
  flex: 1;
}

.coursesList-container-item-title {
  font-family: PingFang SC, PingFang SC;
  font-weight: 500;
  font-size: 18px;
  color: #000000;
}

.coursesList-container-item-content {
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  font-size: 16px;
  color: #93a2b8;
  margin-top: 16px;
  /* margin-bottom: 2px; */
  line-height: 1.8;
}

.coursesList-container-item-base {
  display: flex;
  align-items: center;
  position: relative;
  flex-wrap: wrap;
  justify-content: space-between;
}

.coursesList-container-item-base-left {
  display: flex;
  align-items: center;
  font-family: PingFang SC, PingFang SC;
  font-weight: 400;
  font-size: 14px;
  color: #31718d;
  margin-top: 20px;
}

.coursesList-container-item-base-right {
  display: flex;
  justify-content: flex-end;
  flex: 1;
  align-items: center;
  height: 100%;
  margin-top: 20px;
}

.coursesList-container-item-base-left div ~ div {
  margin-left: 0.8rem;
}

.coursesList-container-item-submit {
  width: 112px;
  height: 38px;
  border-radius: 2px 2px 2px 2px;
  border: 1px solid var(--color-base2);
  padding: 4px;
  padding-right: 44px;
  box-sizing: border-box;
  font-family: PingFang SC, PingFang SC;
  font-weight: 500;
  font-size: 14px;
  color: var(--color-base2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  overflow: hidden;
  right: 0;
  /* right: 24px;
  bottom: 24px; */
  /* margin-top: 20px; */
}

.coursesList-container-item-submit-text {
  position: relative;
  z-index: 2;
}

.coursesList-container-item-submit::before {
  content: "➤";
  position: absolute;
  font-size: 14px;
  top: 50%;
  right: 100%;
  width: 100%;
  height: 30px;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  color: white;
  z-index: 1;
  justify-content: end;
  padding-right: 12px;
  box-sizing: border-box;
  /* background-color: var(--color-base2); */
  background: linear-gradient(270deg, #18cdd1 0%, #329eed 100%);
  transition: all 0.3s;
  line-height: 1;
}

.coursesList-container-item-submit::after {
  content: "➤";
  position: absolute;
  font-size: 14px;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  z-index: 3;
  background-color: var(--color-base2);
  transition: all 0.3s;
  line-height: 1;
}

.coursesList-container-item-submit:hover::after {
  right: -100%;
}

.coursesList-container-item-submit:hover::before {
  right: 0;
  height: 100%;
}

.coursesList-container-item-submit:hover
  .coursesList-container-item-submit-text {
  color: white;
}

.coursesList-container .pagination {
  margin-top: 80px;
}

.pagination-container-item {
  background-color: white;
}

/*!*移动端*!*/
@media screen and (min-width: 320px) and (max-width: 850px) {
  .coursesList-container-item {
    flex-direction: column;
  }

  .coursesList-container-item-image {
    width: 100%;
  }

  .coursesList-container-item-title {
    margin-top: 10px;
  }
}