.page-guide {
  width: min(1180px, calc(100% - 36px));
  margin: 24px auto;
  overflow: hidden;
  border: 1px solid rgba(33, 89, 156, .18);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(16, 42, 67, .08);
}

.page-guide summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
  padding: 15px 20px;
  color: #153f67;
  cursor: pointer;
  list-style: none;
}

.page-guide summary::-webkit-details-marker {
  display: none;
}

.page-guide summary span {
  display: grid;
  gap: 3px;
}

.page-guide summary small {
  color: #61758a;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-guide summary strong {
  font-size: clamp(1rem, 1.7vw, 1.25rem);
}

.page-guide summary i {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #eaf3fb;
  color: #21599c;
  font-size: 1.35rem;
  font-style: normal;
  transition: transform .2s ease;
}

.page-guide[open] summary i {
  transform: rotate(45deg);
}

.page-guide-body {
  padding: 0 20px 20px;
  border-top: 1px solid #e7eef5;
}

.page-guide-body > p {
  max-width: 780px;
  margin: 18px 0;
  color: #53687b;
  line-height: 1.65;
}

.page-guide ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: guide-step;
}

.page-guide li {
  position: relative;
  min-height: 126px;
  padding: 18px 16px 16px 54px;
  border: 1px solid #e3ebf3;
  border-radius: 14px;
  background: #f8fbfe;
  counter-increment: guide-step;
}

.page-guide li::before {
  position: absolute;
  top: 16px;
  left: 16px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 9px;
  background: #21599c;
  color: #fff;
  content: counter(guide-step);
  font-size: .75rem;
  font-weight: 900;
}

.page-guide li span {
  color: #173f65;
  font-weight: 900;
}

.page-guide li p {
  margin: 7px 0 0;
  color: #5d7081;
  font-size: .84rem;
  line-height: 1.55;
}

.admin-main > .page-guide,
.teacher-main > .page-guide,
.academy-main > .page-guide,
.course-main > .page-guide {
  width: 100%;
  margin: 0 0 22px;
}

.admin-main > .page-guide,
.teacher-main > .page-guide {
  border-color: rgba(71, 113, 135, .22);
}

.academy-main > .page-guide {
  border-color: rgba(90, 212, 255, .25);
  background: #0e2231;
  box-shadow: none;
}

.academy-main > .page-guide summary,
.academy-main > .page-guide summary strong {
  color: #eefbff;
}

.academy-main > .page-guide summary small,
.academy-main > .page-guide-body > p,
.academy-main > .page-guide li p {
  color: #a9c3cf;
}

.academy-main > .page-guide-body {
  border-color: rgba(255, 255, 255, .09);
}

.academy-main > .page-guide li {
  border-color: rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .045);
}

.academy-main > .page-guide li span {
  color: #eefbff;
}

@media (max-width: 900px) {
  .page-guide ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .page-guide {
    width: calc(100% - 24px);
    margin: 16px auto;
    border-radius: 14px;
  }

  .page-guide summary {
    min-height: 66px;
    padding: 13px 15px;
  }

  .page-guide-body {
    padding: 0 14px 14px;
  }

  .page-guide ol {
    grid-template-columns: 1fr;
  }

  .page-guide li {
    min-height: 0;
  }
}