.sn { background: #ffffff; }
.sn-stack {
  width: 1260px;
  max-width: calc(100% - 2 * var(--pad-x-sp));
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-64);
  padding: var(--section-y) 0 120px;
}

.sn-tabs { display: flex; gap: var(--space-24); align-items: stretch; }
.sn-tab {
  flex: 1 1 0; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  background: #ffffff;
  border-radius: 8px;
  padding: var(--space-24) var(--space-16);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
  font-family: var(--font-jp); font-weight: var(--fw-bold);
  font-size: 26px; line-height: 1.4; color: #131936;
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.2s ease;
}
.sn-tab:hover { filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.16)); transform: translateY(-2px); }
.sn-tab:focus-visible { outline: 3px solid var(--c-blue-500); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .sn-tab { transition: none !important; transform: none !important; }
}
.sn-tab--teacher { border: 1.5px solid var(--c-accent-blue); }
.sn-tab--staff { border: 1.5px solid var(--c-success-500, #22c55e); }
.sn-tab--teacher.is-active { background: var(--c-accent-blue); color: #ffffff; }
.sn-tab--staff.is-active { background: var(--c-success-500, #22c55e); color: #ffffff; }

.sn-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-48);
  align-items: start;
}

.sn-panel[hidden] { display: none; }
.sn-card { display: flex; flex-direction: column; gap: var(--space-24); }

.sn-card__photos { position: relative; display: block; }
.sn-card__photo {
  width: 100%; height: auto; aspect-ratio: 606 / 455;
  object-fit: cover; display: block;
}
.sn-card__photo--alt {
  position: absolute; inset: 0; height: 100%;
  opacity: 0; transition: opacity 0.25s ease;
}
@media (hover: hover) {
  .sn-card__photos:hover .sn-card__photo--alt { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .sn-card__photo--alt { transition: none; }
}

.sn-card__dots { display: none; }
.sn-card__head { display: flex; gap: var(--space-16); align-items: stretch; }
.sn-card__role {
  flex: none; display: flex; align-items: center; justify-content: center;
  background: var(--c-accent-blue); color: #ffffff;
  font-family: var(--font-jp); font-weight: var(--fw-bold);
  font-size: 16px; line-height: var(--lh-body);
  padding: 0 var(--space-16);
}
.sn-card__name {
  font-family: var(--font-jp); font-weight: var(--fw-bold);
  font-size: 26px; line-height: 1.4; color: #000000;
}
.sn-card__block { display: flex; flex-direction: column; gap: 10px; }
.sn-card__label {
  font-family: var(--font-jp); font-weight: var(--fw-bold);
  font-size: 20px; line-height: 1.6; color: #000000;
}
.sn-card__text { font-family: var(--font-jp); font-size: 16px; line-height: var(--lh-body); color: #000000; }

@media (max-width: 1023px) {
  .sn-panel { gap: var(--space-32); }
  .sn-card__name { font-size: 22px; }
}

@media (max-width: 767px) {
  .sn-stack { gap: var(--space-32); padding: var(--section-y-sp) 0; }
  .sn-tabs { gap: var(--space-12); }
  .sn-tab { padding: var(--space-16) var(--space-8); font-size: 14px; }
  .sn-panel { grid-template-columns: 1fr; gap: var(--space-32); }
  .sn-card { gap: var(--space-16); }

  .sn-card__photos {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .sn-card__photos::-webkit-scrollbar { display: none; }
  .sn-card__photos .sn-card__photo { flex: 0 0 100%; scroll-snap-align: start; }
  .sn-card__photo--alt { position: static; opacity: 1; transition: none; height: auto; }
  .sn-card__dots {
    display: flex; justify-content: center; gap: var(--space-8, 8px);
    margin-top: 2px;
  }
  .sn-card__dots button {
    width: 8px; height: 8px; border-radius: 50%;
    border: none; padding: 0; background: #cacfe3; cursor: pointer;
  }
  .sn-card__dots button.is-active { background: var(--c-accent-blue); }
  .sn-card__role { font-size: 13px; padding: 0 var(--space-8); }
  .sn-card__name { font-size: 20px; }
  .sn-card__label { font-size: 16px; }
  .sn-card__text { font-size: 14px; }
}