details.instruction-guide {
  min-width: 0;
  margin-block: 20px;
  padding: 0;
  border: 1px solid var(--line, #dce4de);
  border-radius: 8px;
  color: var(--ink, #192c26);
}

.instruction-guide > summary {
  display: list-item;
  min-height: 44px;
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 600;
  line-height: 1.5;
  list-style-position: inside;
  overflow-wrap: anywhere;
}

.instruction-guide > summary:focus-visible {
  outline: 3px solid var(--green, #245e44);
  outline-offset: 3px;
  border-radius: 8px;
}

.instruction-guide > .instruction-content {
  padding: 16px;
  border-top: 1px solid var(--line, #dce4de);
  overflow-wrap: anywhere;
}

.instruction-guide > .instruction-content > :first-child { margin-top: 0; }
.instruction-guide > .instruction-content > :last-child { margin-bottom: 0; }