.training-detail { background: #faf7ff; }
.training-detail .site-header { position: sticky; top: 0; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.training-detail .site-header .brand b { color: var(--blue); }
.training-detail .site-header .brand small, .training-detail .site-header .site-nav > a:not(.nav-cta) { color: var(--blue-deep); }
.training-detail .site-header .brand-company { border-color: var(--blue); color: var(--blue); }
.training-detail .site-nav a[aria-current="page"] { color: var(--blue); }
.detail-wrap { width: min(calc(100% - 2 * var(--pad)), var(--max)); margin: auto; }
.detail-breadcrumb { display: flex; gap: 12px; padding-top: 26px; color: var(--muted); font-size: 13px; }
.detail-breadcrumb a { text-decoration: none; }
.detail-breadcrumb span[aria-hidden] { color: #b1a4c4; }
.detail-hero { display: grid; grid-template-columns: 1.08fr 1fr; align-items: center; gap: 64px; padding: 52px 0 64px; }
.detail-eyebrow { margin: 0 0 20px; color: var(--blue); font-size: 14px; font-weight: 700; }
.detail-hero h1 { margin: 0; color: var(--blue-deep); font: 700 var(--title-size)/1.3 var(--display); letter-spacing: -.04em; }
.detail-lead { max-width: 580px; margin: 24px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.detail-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.detail-primary { color: #fff; background: var(--blue); }
.detail-primary:hover { background: #5b3bc6; }
.detail-secondary { color: var(--blue); border: 1px solid #cfc0ea; background: transparent; }
.detail-cohort-note { max-width: 570px; margin: 22px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.course-scene { margin: 0; position: relative; }
.course-scene > img { width: 100%; height: 340px; object-fit: cover; border-radius: 24px 24px 0 0; }
.course-scene figcaption { padding: 26px 30px; border-radius: 0 0 24px 24px; color: #fff; background: var(--blue-deep); }
.course-scene figcaption strong { display: block; font-size: 22px; }
.course-scene figcaption span { display: block; margin-top: 8px; color: #d8ccea; font-size: 14px; }
.detail-section { padding: 76px 0; border-top: 1px solid var(--line); }
.detail-section-title { margin: 0 0 18px; color: var(--blue-deep); font: 700 var(--title-size)/1.3 var(--display); letter-spacing: -.035em; }
.detail-section-intro { max-width: 760px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.detail-audiences { display: grid; grid-template-columns: repeat(3,1fr); gap: 36px; margin-top: 36px; }
.detail-audiences article { padding-left: 20px; border-left: 3px solid #cbb7f6; }
.detail-audiences h3 { margin: 0 0 12px; font-size: 22px; }
.detail-audiences p { margin: 0; color: var(--muted); line-height: 1.85; }
.syllabus-layout { display: grid; grid-template-columns: 246px 1fr; gap: 56px; margin-top: 40px; align-items: start; }
.syllabus-index { position: sticky; top: 108px; padding: 22px; background: #f0e8ff; border-radius: 18px; }
.syllabus-index p { margin: 0 0 18px; font-weight: 700; }
.syllabus-index a { display: block; margin: 16px 0; color: var(--blue-deep); text-decoration: none; font-size: 14px; }
.syllabus-index a:hover { color: var(--blue); }
.syllabus-module { padding: 32px 0 40px; border-top: 1px solid var(--line); scroll-margin-top: 108px; }
.syllabus-module:first-child { border-top: 0; padding-top: 0; }
.syllabus-module .module-number { display: block; margin-bottom: 10px; color: var(--blue); font-size: 13px; font-weight: 700; }
.syllabus-module h3 { margin: 0 0 14px; font-size: 29px; letter-spacing: -.025em; }
.syllabus-module > p { margin: 0; color: var(--muted); line-height: 1.85; }
.module-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 24px; }
.module-detail-grid h4 { margin: 0 0 12px; color: var(--blue-deep); font-size: 16px; }
.module-detail-grid ul { margin: 0; padding-left: 19px; color: var(--muted); }
.module-detail-grid li + li { margin-top: 8px; }
.module-practice { padding: 20px 22px; border-radius: 14px; background: #fff; }
.module-practice p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.module-check { margin-top: 22px !important; color: var(--blue-deep) !important; font-size: 14px; }
.detail-journey { display: grid; grid-template-columns: repeat(5,1fr); gap: 24px; margin: 36px 0 0; padding: 0; list-style: none; counter-reset: journey; }
.detail-journey li { counter-increment: journey; padding-top: 20px; border-top: 2px solid #c9b5f2; }
.detail-journey li::before { content: "0" counter(journey); display: block; margin-bottom: 12px; color: var(--blue); font-size: 14px; }
.detail-journey h3 { margin: 0 0 12px; font-size: 20px; }
.detail-journey p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.detail-prep { display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px; }
.prep-list { margin: 24px 0 0; padding-left: 22px; color: var(--muted); }
.prep-list li { margin-top: 12px; line-height: 1.8; }
.detail-faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.detail-faq details:first-child { padding-top: 0; }
.detail-faq summary { cursor: pointer; font-weight: 700; font-size: 18px; }
.detail-faq p { color: var(--muted); line-height: 1.85; }
.detail-final { margin: 72px 0; padding: 44px; display: flex; justify-content: space-between; align-items: center; gap: 40px; border-radius: 22px; background: var(--blue-deep); color: #fff; }
.detail-final h2 { margin: 0 0 14px; font: 700 var(--card-title-size)/1.4 var(--display); }
.detail-final p { max-width: 670px; margin: 0; color: #d8ccea; line-height: 1.8; }
.detail-final .button { flex-shrink: 0; background: #fff; color: var(--blue-deep); }
.detail-footer { border-top: 1px solid var(--line); padding: 32px var(--pad); display: flex; justify-content: space-between; gap: 30px; color: var(--muted); font-size: 13px; }
.detail-footer p { margin: 0; }
.detail-footer nav { display: flex; gap: 22px; }
.instructor-hero { grid-template-columns: 1fr 420px; gap: 100px; }
.instructor-team { padding: 60px 0 84px; }
.instructor-team-heading { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(360px, .7fr); gap: 76px; align-items: end; }
.instructor-team h1 { margin: 0; color: var(--blue-deep); }
.instructor-team-intro { max-width: 500px; margin: 0 0 10px; color: var(--muted); }
.team-groups { display: grid; gap: 78px; margin-top: 58px; }
.team-group-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.team-group-heading p { margin: 0 0 8px; color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .14em; }
.team-group-heading h2 { margin: 0; color: var(--blue-deep); font-family: var(--display); font-size: clamp(30px, 3.2vw, 44px); font-weight: 400; }
.team-group-heading > span { padding-bottom: 5px; color: var(--muted); font-size: 13px; }
.team-grid { display: grid; gap: 22px; margin-top: 26px; }
.team-grid-instructors { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.team-grid-operations { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 930px; margin-right: auto; margin-left: auto; }
.team-card { display: grid; min-width: 0; overflow: hidden; border: 1px solid #d9cbed; border-radius: 26px; background: #fff; box-shadow: 0 18px 50px rgba(69,42,115,.1); transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease; }
.team-card:hover { border-color: #bda8dd; box-shadow: 0 26px 64px rgba(69,42,115,.16); transform: translateY(-4px); }
.team-card-portrait { position: relative; aspect-ratio: 4 / 5; margin: 0; overflow: hidden; background: linear-gradient(145deg, #ebe4f4, #b7abc5); }
.team-card-portrait::after { position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgba(28,17,49,.55)); content: ""; pointer-events: none; }
.team-card-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: center 23%; transition: transform 700ms cubic-bezier(.22,.78,.25,1); }
.team-card:hover .team-card-portrait img { transform: scale(1.025); }
.team-card-portrait-leo img { object-position: center 18%; }
.team-card-portrait-caijie img { object-position: center 30%; }
.team-card-portrait-suhan img { object-position: center 27%; }
.team-card-portrait-meilin img { object-position: center 23%; }
.team-card-portrait figcaption { position: absolute; right: 22px; bottom: 17px; z-index: 1; color: #fff; font-family: var(--display); font-size: 42px; line-height: 1; }
.team-card-body { display: flex; min-width: 0; flex-direction: column; padding: 28px; }
.team-card-role { align-self: flex-start; margin: 0 0 16px; padding: 7px 11px; border-radius: 999px; color: #6842c8; background: #eee7ff; font-size: 11px; font-weight: 700; }
.team-card-role.is-operations { color: #087d67; background: #e2f8f0; }
.team-card h3 { margin: 0; color: var(--blue-deep); font-family: var(--display); font-size: clamp(30px, 3vw, 42px); font-weight: 400; line-height: 1.15; }
.team-card-bio { margin: 18px 0 0; color: var(--muted); font-size: 15px; line-height: 1.85; }
.team-card ul { display: grid; gap: 0; margin: 24px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.team-card li { position: relative; padding: 12px 0 12px 17px; border-bottom: 1px solid var(--line); color: var(--blue-deep); font-size: 13px; line-height: 1.55; }
.team-card li::before { position: absolute; top: 20px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); content: ""; }
.instructor-selector { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: end; margin-top: 54px; }
.instructor-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.instructor-tab { position: relative; display: grid; grid-template-columns: auto 52px minmax(0, 1fr); gap: 13px; align-items: center; min-width: 0; min-height: 92px; padding: 14px 16px; overflow: hidden; border: 1px solid #d9cbed; border-radius: 18px; color: #665b79; background: rgba(255,255,255,.58); text-align: left; cursor: pointer; transition: color 220ms ease, border-color 220ms ease, background 220ms ease, box-shadow 220ms ease, transform 220ms ease; }
.instructor-tab::after { position: absolute; right: 18px; bottom: 0; left: 18px; height: 3px; background: linear-gradient(90deg, var(--blue), #c277eb, var(--coral)); content: ""; opacity: 0; transform: scaleX(.35); transform-origin: left; transition: opacity 220ms ease, transform 380ms cubic-bezier(.22,.78,.25,1); }
.instructor-tab:hover { border-color: #bda8dd; color: var(--blue-deep); transform: translateY(-2px); }
.instructor-tab.is-active { border-color: rgba(112,78,230,.72); color: var(--blue-deep); background: linear-gradient(135deg, #fff 12%, #eee6ff); box-shadow: 0 18px 34px rgba(81,48,144,.16); transform: translateY(-5px); }
.instructor-tab.is-active::after { opacity: 1; transform: scaleX(1); }
.instructor-tab-index { color: #9b8bac; font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.instructor-tab.is-active .instructor-tab-index { color: var(--blue); }
.instructor-tab img { width: 52px; height: 58px; object-fit: cover; object-position: center 22%; border-radius: 12px; filter: grayscale(.52) contrast(.94); transition: filter 220ms ease, transform 380ms cubic-bezier(.22,.78,.25,1); }
.instructor-tab.is-active img { filter: none; transform: scale(1.04); }
.instructor-tab b, .instructor-tab small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.instructor-tab b { font-family: var(--display); font-size: 18px; font-weight: 400; }
.instructor-tab small { margin-top: 5px; color: #81758f; font-size: 10px; }
.instructor-controls { display: flex; align-items: center; gap: 12px; }
.instructor-controls p { display: flex; gap: 7px; align-items: baseline; margin: 0; color: #9a8ba9; font-size: 11px; font-variant-numeric: tabular-nums; }
.instructor-controls p span:first-child { color: var(--blue-deep); font-family: var(--display); font-size: 24px; }
.instructor-controls i { font-style: normal; }
.instructor-arrow { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid #d3c2ea; border-radius: 50%; background: #fff; cursor: pointer; transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease; }
.instructor-arrow img { width: 16px; filter: invert(17%) sepia(18%) saturate(1870%) hue-rotate(221deg) brightness(88%) contrast(95%); }
.instructor-arrow.is-previous img { transform: rotate(180deg); }
.instructor-arrow:hover { border-color: var(--blue); background: #f1eaff; box-shadow: 0 10px 22px rgba(85,51,145,.13); transform: translateY(-2px); }
.instructor-stage { margin-top: 24px; touch-action: pan-y; }
.instructor-profile.is-active { animation: instructor-panel-arrive 640ms cubic-bezier(.22,.78,.25,1) both; }
.instructor-profile-main { display: grid; grid-template-columns: minmax(360px, .82fr) minmax(0, 1.18fr); min-height: 590px; overflow: hidden; border: 1px solid #d8caea; border-radius: 30px; background: #fff; box-shadow: 0 30px 80px rgba(65,36,116,.15); }
.instructor-profile-portrait { position: relative; min-width: 0; min-height: 590px; margin: 0; overflow: hidden; background: linear-gradient(145deg, #d7c7ec, #6c5a84); }
.instructor-profile-portrait::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 52%, rgba(29,15,55,.78)); content: ""; pointer-events: none; }
.instructor-profile-portrait > img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; transition: transform 1.1s cubic-bezier(.22,.78,.25,1); }
.instructor-profile.is-active .instructor-profile-portrait > img { transform: scale(1.025); }
.instructor-profile-portrait-siqin > img { object-position: center 30%; }
.instructor-profile-portrait-leo > img { object-position: center 18%; }
.instructor-profile-portrait figcaption { position: absolute; right: 28px; bottom: 24px; left: 28px; z-index: 2; display: flex; align-items: end; justify-content: space-between; gap: 24px; color: #fff; }
.instructor-profile-portrait figcaption span { font-size: 9px; font-weight: 700; letter-spacing: .18em; }
.instructor-profile-portrait figcaption b { font-family: var(--display); font-size: 72px; font-weight: 400; letter-spacing: -.08em; line-height: .8; }
.instructor-profile-copy { display: grid; align-content: center; padding: clamp(42px, 5vw, 72px); background: radial-gradient(circle at 100% 0, #efe7ff 0, transparent 38%), #fff; }
.instructor-profile-kicker { margin: 0 0 20px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.instructor-profile-copy h2 { margin: 0; color: var(--blue-deep); font-size: clamp(40px, 5vw, 66px); line-height: 1.12; }
.instructor-profile-bio { max-width: 660px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.instructor-credentials { display: grid; grid-template-columns: 1fr; gap: 0; margin: 36px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.instructor-credentials li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: baseline; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--blue-deep); font-size: 14px; }
.instructor-credentials li span { color: var(--blue); font-size: 10px; font-weight: 700; }
.instructor-classroom { margin-top: 24px; padding: 34px; overflow: hidden; border: 1px solid #d9cbed; border-radius: 28px; background: linear-gradient(135deg, #f5efff, #fff 62%); }
.instructor-classroom-heading { display: grid; grid-template-columns: minmax(260px, .8fr) 1fr; column-gap: 48px; align-items: end; }
.instructor-classroom-heading p { grid-column: 1 / -1; margin: 0 0 12px; color: var(--blue); font-size: 9px; font-weight: 700; letter-spacing: .17em; }
.instructor-classroom-heading h3 { margin: 0; color: var(--blue-deep); font-size: 28px; }
.instructor-classroom-heading span { color: var(--muted); font-size: 14px; text-align: right; }
.instructor-photo-grid { display: grid; grid-template-columns: 1.35fr .82fr .82fr; gap: 12px; margin-top: 28px; }
.instructor-photo-grid figure { position: relative; min-width: 0; height: 270px; margin: 0; overflow: hidden; border-radius: 16px; background: #d7cae8; }
.instructor-photo-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform 520ms cubic-bezier(.22,.78,.25,1), filter 220ms ease; }
.instructor-photo-grid figure:nth-child(2) img { object-position: 61% center; }
.instructor-photo-grid figure:hover img { filter: saturate(1.08); transform: scale(1.035); }
.instructor-photo-grid figcaption { position: absolute; right: 0; bottom: 0; left: 0; padding: 38px 16px 14px; color: #fff; background: linear-gradient(transparent, rgba(30,15,56,.88)); font-size: 12px; }
.instructor-photo-placeholder { position: relative; display: grid; align-content: end; min-height: 270px; margin-top: 28px; padding: 32px; overflow: hidden; border: 1px dashed #bca6dd; border-radius: 16px; background: linear-gradient(135deg, rgba(217,199,246,.72), rgba(255,255,255,.92)); }
.instructor-photo-placeholder::before { position: absolute; inset: 0; background-image: linear-gradient(rgba(112,78,230,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(112,78,230,.07) 1px, transparent 1px); background-size: 46px 46px; content: ""; mask-image: linear-gradient(135deg,#000,transparent 72%); }
.instructor-photo-placeholder > * { position: relative; }
.instructor-photo-placeholder span { color: var(--blue); font-size: 9px; font-weight: 700; letter-spacing: .15em; }
.instructor-photo-placeholder p { margin: 12px 0 4px; color: var(--blue-deep); font-family: var(--display); font-size: 28px; }
.instructor-photo-placeholder small { color: var(--muted); font-size: 12px; }
.instructor-role { margin: 22px 0 0; font-size: 26px; color: var(--blue-deep); }
.instructor-name { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
.instructor-portrait { margin: 0; position: relative; }
.instructor-portrait img { width: 100%; height: 480px; object-fit: cover; object-position: center 24%; border-radius: 24px; }
.instructor-portrait figcaption { position: absolute; left: 20px; right: 20px; bottom: 20px; padding: 17px 22px; background: rgba(255,255,255,.94); color: var(--blue-deep); border-radius: 14px; }
.instructor-portrait figcaption b { display: block; font-size: 18px; }
.instructor-portrait figcaption span { font-size: 13px; color: var(--muted); }
.instructor-experience { display: grid; grid-template-columns: .7fr 1.2fr 1.1fr; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 30px 0; }
.instructor-experience > div { padding: 0 30px; border-left: 1px solid var(--line); }
.instructor-experience > div:first-child { padding-left: 0; border-left: 0; }
.instructor-experience b { display: block; font-size: 26px; color: var(--blue-deep); }
.instructor-experience span { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; }
.instructor-background { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.instructor-background .detail-section-intro { font-size: 16px; }
.instructor-roles { margin: 0; }
.instructor-roles > div { padding: 20px 0; border-bottom: 1px solid var(--line); }
.instructor-roles > div:first-child { padding-top: 0; }
.instructor-roles dt { font-size: 18px; font-weight: 700; }
.instructor-roles dd { margin: 6px 0 0; color: var(--muted); }
.instructor-teaching { position: relative; }
.instructor-teaching::before { position: absolute; top: 74px; right: 0; width: 160px; height: 160px; border: 1px solid rgba(112,78,230,.14); border-radius: 50%; box-shadow: 0 0 0 30px rgba(112,78,230,.04), 0 0 0 60px rgba(112,78,230,.025); content: ""; pointer-events: none; }
.instructor-teaching .detail-section-title { max-width: 900px; }
.instructor-teaching .detail-section-intro { max-width: 820px; }
.instructor-method { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; margin-top: 48px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.instructor-method article { position: relative; min-height: 360px; padding: 34px 34px 38px 0; }
.instructor-method article + article { padding-left: 34px; border-left: 1px solid var(--line); }
.instructor-method h3 { max-width: 310px; margin: 48px 0 16px; color: var(--blue-deep); font-size: 25px; }
.instructor-method article > p:last-child { margin: 0; color: var(--muted); line-height: 1.85; }
.instructor-method .method-number { display: block; color: #c9b9dd; font-family: var(--display); font-size: 48px; line-height: 1; }
.instructor-method .method-label { position: absolute; top: 48px; right: 28px; margin: 0; color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.detail-text-link { display: inline-block; margin-top: 24px; color: var(--blue); font-weight: 700; text-underline-offset: 5px; }

@keyframes instructor-panel-arrive {
  from { opacity: 0; transform: translate3d(32px,0,0); }
  to { opacity: 1; transform: translate3d(0,0,0); }
}

@media (max-width: 1040px) {
  .detail-hero, .instructor-hero { grid-template-columns: 1fr 1fr; gap: 36px; }
  .syllabus-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 30px; }
  .detail-journey { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .detail-prep, .instructor-background { gap: 36px; }
  .detail-final { flex-wrap: wrap; }
  .instructor-team-heading { grid-template-columns: 1fr minmax(320px, .72fr); gap: 42px; }
  .instructor-selector { grid-template-columns: 1fr; }
  .instructor-controls { justify-self: end; }
  .instructor-tab { grid-template-columns: auto minmax(0, 1fr); }
  .instructor-tab img { display: none; }
  .instructor-profile-main { grid-template-columns: minmax(320px, .8fr) minmax(0, 1.2fr); }
  .instructor-profile-copy { padding: 44px; }
  .instructor-photo-grid { grid-template-columns: 1.2fr 1fr; }
  .instructor-photo-grid figure:last-child { display: none; }
}
@media (max-width: 800px) {
  .instructor-team { padding: 36px 0 48px; }
  .instructor-team-heading { grid-template-columns: 1fr; gap: 24px; }
  .team-groups { gap: 56px; margin-top: 40px; }
  .team-group-heading { align-items: flex-start; flex-direction: column; gap: 4px; }
  .team-grid-instructors, .team-grid-operations { grid-template-columns: 1fr; max-width: none; }
  .team-card-body { padding: 26px 24px; }
  .instructor-selector { margin-top: 34px; }
  .instructor-tabs { grid-template-columns: 1fr; }
  .instructor-tab { grid-template-columns: auto 48px minmax(0, 1fr); min-height: 80px; }
  .instructor-tab img { display: block; width: 48px; height: 52px; }
  .instructor-profile-main { grid-template-columns: 1fr; }
  .instructor-profile-portrait { min-height: 520px; }
  .instructor-profile-copy { padding: 38px 30px; }
  .instructor-classroom { padding: 26px; }
  .instructor-classroom-heading { grid-template-columns: 1fr; }
  .instructor-classroom-heading span { margin-top: 8px; text-align: left; }
  .instructor-photo-grid { grid-template-columns: 1fr; }
  .instructor-photo-grid figure { height: 300px; }
  .instructor-photo-grid figure:not(:first-child) { display: none; }
  .detail-hero, .instructor-hero, .detail-audiences, .syllabus-layout,
  .detail-prep, .instructor-background, .instructor-method { grid-template-columns: 1fr; }
  .detail-hero { padding: 36px 0 48px; }
  .detail-section { padding: 48px 0; }
  .syllabus-index { position: static; }
  .instructor-portrait { max-width: 420px; }
  .instructor-experience { grid-template-columns: 1fr; gap: 24px; }
  .instructor-experience > div { padding: 0; border: 0; }
  .instructor-method article { min-height: 0; padding: 30px 0 34px; }
  .instructor-method article + article { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .instructor-method .method-label { top: 42px; right: 0; }
  .detail-footer { flex-direction: column; gap: 16px; }
  .detail-footer nav { flex-wrap: wrap; }
}
@media (max-width: 500px) {
  .module-detail-grid, .detail-journey { grid-template-columns: 1fr; }
  .course-scene > img { height: 240px; }
  .course-scene figcaption { padding: 24px; }
  .detail-final { margin: 48px 0; padding: 28px 24px; }
  .syllabus-module h3 { font-size: var(--card-title-size); }
}

@media (prefers-reduced-motion: reduce) {
  .team-card, .team-card-portrait img { transition: none; }
  .instructor-profile.is-active { animation: none; }
  .instructor-profile-portrait > img, .instructor-tab, .instructor-tab::after, .instructor-tab img, .instructor-photo-grid img { transition: none; }
}