body {
  background: #fff;
}

.contents_curriculum {
  background: #def;
  margin: 0 calc(50% - 50vw);
}

.contents_curriculum_list {
  padding: 64px 160px;
  max-width: 1350px;
  margin: auto;
}

.contents_curriculum_list li {
  display: flex;
  align-items: center;
  justify-content: space-between;

  box-sizing: content-box;
  min-height: 34px;
  padding: 24px;
}

.curriculum_list_title {
  font-weight: bold;

  width: 80%;
  padding-right: 24px;
}

.curriculum_list_title span {
  line-height: 1.5;
}

.curriculum_list_title a {
  text-decoration: none;

  color: #3e3a39;
}

.curriculum_list_badge {
  display: flex;
  justify-content: flex-end;

  width: auto;
}

.badge_mark {
  display: none;
}

.badge_mark.already {
  font-weight: bold;

  display: inline-block;

  padding: 8px 16px;

  white-space: nowrap;
  text-indent: 4px;
  letter-spacing: 0;

  color: #1a49ba;
  background: transparent;
}

.badge_mark.watch {
  font-weight: bold;

  display: inline-block;

  padding: 8px 16px;

  white-space: nowrap;
  text-indent: 4px;
  letter-spacing: 8px;

  color: #fff;
  background: #1a49ba;
}

.contents_curriculum_list li:nth-child(odd) {
  background: #fff;
}

.contents_curriculum_list li:nth-child(even) {
  background: #f3f9ff;
}

.contents_curriculum_list li:nth-child(1) {
  border-radius: 12px 12px 0 0;
}

.contents_curriculum_list li:nth-last-child(1) {
  border-radius: 0 0 12px 12px;
}

/*スマホ・タブレット用画面*/
@media screen and (max-width: 900px) {
  .curriculum_list_title {
    font-weight: bold;

    width: 100%;
    padding-right: 0;
  }

  .contents_curriculum_list {
    padding: 32px 24px;
  }
}