:root {
  --ariake-navy: #142d42;
  --ariake-gold: #a18149;
  --ariake-paper: #f6f4ef;
  --ariake-ink: #253c4b;
  --ariake-muted: #5e6c74;
  --ariake-serif: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
}
.ariake-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ariake-navy); white-space: nowrap; text-align: left; vertical-align: middle; }
.ariake-brand__kanji { font-family: var(--ariake-serif); font-size: 34px; font-weight: 500; line-height: 1.2; letter-spacing: .06em; }
.ariake-brand__detail { display: flex; flex-direction: column; gap: 5px; border-left: 1px solid var(--ariake-gold); padding-left: 12px; }
.ariake-brand__name { font-family: var(--ariake-serif); font-size: 16px; line-height: 1.3; font-weight: 500; letter-spacing: .12em; }
.ariake-brand__english { font-family: Arial, sans-serif; font-size: 8px; font-weight: 600; letter-spacing: .13em; line-height: 1.4; }
.l-header .l-header__heading, .l-header.is-sub .l-header__heading, .l-header.is-fixed .l-header__heading { width: 230px; height: auto; flex-shrink: 0; }
.l-header .l-header__heading a, .l-header.is-sub .l-header__heading a, .l-header.is-fixed .l-header__heading a { width: auto; height: auto; text-decoration: none; }
.l-header .l-header__heading__wrap { flex-shrink: 0; }
.l-header.is-animation { opacity: 1; }
.l-header:not(.is-sub):not(.is-fixed) .l-header__heading.is-show .ariake-brand { color: #fff; }
.l-footer a.l-footer__logo { width: 218px; height: auto; min-height: 64px; text-decoration: none; }
.l-header .l-header__nav { padding-left: 18px; }
.l-header .l-header__nav ul { margin-bottom: 0; }
.l-header:not(.is-sub):not(.is-fixed) .l-header__content { align-items: center; }
.c-box-front-options__content > .c-box-front-options__block { flex: 1; width: 0; min-width: 0; }
.l-header .l-header__nav ul > li { margin-right: 18px; }
.l-header .l-header__nav ul > li:last-child { margin-right: 0; }
.l-header .l-header__nav ul > li > a { white-space: nowrap; }
.l-header .l-header__nav-item { font-size: 13px; }
.l-header .l-header__nav-item.is-blue3 { padding-left: 14px; padding-right: 14px; }
.ariake-teacher { margin: 0 0 72px; color: var(--ariake-ink); }
.ariake-eyebrow { margin: 0 0 12px; color: var(--ariake-gold); font: 600 11px/1.5 Arial, sans-serif; letter-spacing: .2em; }
.ariake-teacher__heading { margin: 0 0 28px; font-family: var(--ariake-serif); font-size: 30px; font-weight: 400; line-height: 1.5; letter-spacing: .08em; }
.ariake-teacher__card { display: grid; grid-template-columns: minmax(220px, .85fr) minmax(0, 1.75fr); background: var(--ariake-paper); border-top: 2px solid var(--ariake-gold); }
.ariake-teacher__portrait { position: relative; min-height: 420px; overflow: hidden; background: #c9cccf; }
.ariake-teacher__portrait img { display: block; position: absolute; width: 100%; height: 100%; object-fit: cover; object-position: center 22%; }
.ariake-teacher__content { padding: 44px 48px; }
.ariake-teacher__role { margin: 0 0 16px; color: var(--ariake-muted); font-size: 13px; line-height: 1.8; }
.ariake-teacher__name { margin: 0; font-family: var(--ariake-serif); font-size: 38px; font-weight: 400; line-height: 1.5; letter-spacing: .12em; }
.ariake-teacher__english { margin: 6px 0 24px; color: var(--ariake-gold); font: 11px/1.5 Arial, sans-serif; letter-spacing: .16em; }
.ariake-teacher__intro { margin: 0 0 22px; font-size: 15px; line-height: 2; }
.ariake-teacher__tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; padding: 0; list-style: none; }
.ariake-teacher__tags li { padding: 5px 12px; border: 1px solid #d8d5cd; font-size: 12px; line-height: 1.7; }
.ariake-profile-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 48px; padding: 12px 24px; background: var(--ariake-navy); color: #fff; text-decoration: none; font-size: 14px; line-height: 1.7; transition: background .2s ease; }
.ariake-profile-link:hover { background: #294c65; color: #fff; opacity: 1; }
.ariake-profile-link:focus-visible, .ariake-brand:focus-visible { outline: 3px solid #b58c43; outline-offset: 5px; }
.ariake-teacher__note { margin: 14px 0 0; font-size: 12px; line-height: 1.8; color: var(--ariake-muted); }
.ariake-team-heading { margin: 0 0 30px; padding-top: 28px; border-top: 1px solid #deded9; font-family: var(--ariake-serif); font-size: 27px; font-weight: 400; letter-spacing: .08em; }
@media (max-width: 1500px) and (min-width: 950px) {
  .l-header .l-header__nav ul > li { margin-right: 12px; }
  .l-header .l-header__nav ul > li > a { font-size: 12px; }
  .l-header .l-header__nav-item.is-blue1, .l-header .l-header__nav-item.is-blue2, .l-header .l-header__nav-item.is-blue3 { padding: 12px 10px; }
}
@media (max-width: 1250px) {
  .l-header .l-header__nav { display: none !important; }
  .c-slidebar-button.js-slidebar-button { display: flex !important; align-items: center; justify-content: center; flex-direction: column; position: fixed; top: 0; right: 8px; width: 72px; height: 72px; z-index: 9999; }
  .c-slidebar-button__line > span { display: block; width: 22px; height: 2px; background: var(--ariake-navy); margin: 0 auto 6px; }
  .c-slidebar-button__line > span:last-child { margin-bottom: 0; }
  .c-slidebar-menu.js-slidebar-menu { display: block !important; position: fixed; top: 72px; right: 0; width: min(420px, 100%); height: calc(100dvh - 72px) !important; padding: 12px 20px 32px; background: #fff; z-index: 9985; overflow-y: auto; transform: translateX(105%); opacity: 0; visibility: hidden; transition: transform .2s ease, opacity .2s ease, visibility .2s; }
  .is-slidebar-active .c-slidebar-menu.js-slidebar-menu { transform: translateX(0); opacity: 1; visibility: visible; }
  .c-slidebar-menu.js-slidebar-menu ul { margin: 0; padding: 0; list-style: none; }
  .c-slidebar-menu.js-slidebar-menu ul li { display: block; min-height: 0; border-bottom: 1px solid #e5e7e8; }
  .c-slidebar-menu.js-slidebar-menu ul li a, .c-slidebar-menu.js-slidebar-menu ul li > span { display: flex; align-items: center; height: auto; min-height: 48px; padding: 12px; font-size: 14px; color: var(--ariake-ink); text-decoration: none; }
  .c-slidebar-menu.js-slidebar-menu .c-slidebar-menu__children { display: none; padding-left: 16px; }
  .c-slidebar-menu.js-slidebar-menu .c-slidebar-menu__button { display: block; width: 100%; padding: 14px; margin-top: 12px; text-align: center; text-decoration: none; color: #fff; background: var(--ariake-navy); }
  .l-header:not(.is-sub):not(.is-fixed) { background: #fff; min-height: 72px; padding: 12px 22px; }
  .l-header:not(.is-sub):not(.is-fixed) .l-header__heading.is-show .ariake-brand { color: var(--ariake-navy); }
}
@media (max-width: 767px) {
  .ariake-brand { gap: 9px; }
  .ariake-brand__kanji { font-size: 29px; }
  .ariake-brand__detail { gap: 4px; padding-left: 9px; }
  .ariake-brand__name { font-size: 14px; }
  .ariake-brand__english { font-size: 7px; }
  .ariake-teacher { margin-bottom: 44px; }
  .ariake-teacher__heading { font-size: 26px; margin-bottom: 22px; }
  .ariake-teacher__card { grid-template-columns: minmax(0, 1fr); }
  .ariake-teacher__portrait { min-height: 0; height: 350px; }
  .ariake-teacher__portrait img { object-position: center 20%; }
  .ariake-teacher__content { padding: 28px 24px; }
  .ariake-teacher__name { font-size: 32px; }
  .ariake-teacher__intro { font-size: 14px; }
}
@media (max-width: 749px) {
  .c-box-front-options__content > .c-box-front-options__block { flex: auto; width: 100%; }
}
@media (prefers-reduced-motion: reduce) { .ariake-profile-link { transition: none; } }

/* Inline carousel controls remain available without separate image files. */
.owl-nav .ariake-slider-arrow { display: block; width: 100%; height: 100%; }
.owl-nav button:focus-visible { outline: 2px solid #065793; outline-offset: 4px; }