:root {
  --paper: #f7f4ec;
  --paper-deep: #ebe5d9;
  --white: #fffdf8;
  --ink: #292a26;
  --muted: #62665f;
  --line: #d9d3c8;
  --accent: #557565;
  --accent-dark: #3f5d50;
  --dark-panel: #2e3a35;
  --radius: 8px;
  --shell: 1160px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif; font-size: 16px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(var(--shell), calc(100% - 64px)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(247,244,236,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav { min-height: 128px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand-lockup { display: inline-flex; align-items: center; gap: 13px; min-width: 0; }
.brand-logo { display: block; width: auto; object-fit: contain; object-position: center; }
.brand-logo-nyx { height: 80px; max-width: 180px; }
.brand-logo-aedp { height: 64px; max-width: 250px; }
.brand-divider { width: 1px; height: 52px; background: var(--line); flex: 0 0 auto; }
.nav-links { display: flex; gap: 34px; margin-left: auto; color: var(--muted); font-size: 14px; }
.nav-links a, .nav-contact { transition: color .2s ease; }
.nav-dropdown { position: relative; }
.nav-menu-trigger { display: inline-flex; align-items: center; gap: 7px; padding: 0; border: 0; background: transparent; color: inherit; cursor: pointer; font-size: inherit; }
.nav-menu-trigger span { color: var(--accent); font-size: 16px; line-height: 1; transition: transform .2s ease; }
.nav-dropdown-menu { position: absolute; top: calc(100% + 22px); left: 50%; min-width: 220px; padding: 12px; transform: translate(-50%, -6px); background: var(--white); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 38px rgba(74,78,68,.14); opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease; }
.nav-dropdown-menu::before { content: ""; position: absolute; top: -23px; left: 0; right: 0; height: 23px; }
.nav-dropdown-menu a { display: block; padding: 12px 14px; border-radius: 10px; color: var(--muted); text-align: center; white-space: nowrap; }
.nav-dropdown-menu a:hover { background: var(--paper); color: var(--accent-dark); }
.nav-dropdown:hover .nav-dropdown-menu, .nav-dropdown:focus-within .nav-dropdown-menu { opacity: 1; pointer-events: auto; transform: translate(-50%, 0); }
.nav-dropdown:hover .nav-menu-trigger span, .nav-dropdown:focus-within .nav-menu-trigger span { transform: rotate(180deg); }
.nav-links a:hover, .nav-contact:hover { color: var(--accent-dark); }
.nav-contact { color: var(--accent-dark); font-size: 14px; }
.menu-toggle { display: none; border: 0; background: none; padding: 10px 0 10px 10px; }
.menu-toggle span { display: block; width: 22px; height: 1px; background: var(--ink); margin: 5px 0; }
.mobile-nav { padding: 14px 0 22px; border-top: 1px solid var(--line); flex-direction: column; gap: 10px; font-size: 15px; }
.mobile-nav[hidden] { display: none; }
.mobile-nav-group { border-bottom: 1px solid var(--line); }
.mobile-nav-group summary { padding: 8px 0; font-size: 15px; cursor: pointer; list-style: none; }
.mobile-nav-group summary::-webkit-details-marker { display: none; }
.mobile-nav-group summary::after { content: "+"; float: right; color: var(--accent); }
.mobile-nav-group[open] summary::after { content: "−"; }
.mobile-nav-group a { display: block; padding: 7px 0 7px 14px; color: var(--muted); font-size: 14px; }
.eyebrow { margin: 0 0 20px; color: var(--accent-dark); font-size: 11px; letter-spacing: .17em; line-height: 1.5; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-weight: 500; letter-spacing: -.035em; line-height: 1.12; }
h1 { max-width: 720px; margin-inline: auto; font-size: clamp(40px, 6vw, 70px); }
h2 { font-size: clamp(34px, 4.5vw, 58px); }
h1 em, h2 em { font-style: normal; color: var(--accent-dark); }
h3 { font-size: 18px; line-height: 1.35; font-weight: 600; }
.hero { min-height: min(790px, calc(100dvh - 128px)); padding: 110px 0 80px; text-align: center; }
.hero-copy { max-width: 650px; margin: 24px auto 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 22px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; gap: 12px; min-height: 48px; padding: 10px 20px; border-radius: var(--radius); font-size: 14px; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:active { transform: translateY(1px); }
.button-primary { background: var(--accent); color: #fffdf8; }
.button-primary:hover { background: var(--accent-dark); }
.button-quiet { padding-inline: 4px; color: var(--accent-dark); border-bottom: 1px solid var(--accent); border-radius: 0; }
.button-quiet:hover { border-color: var(--ink); color: var(--ink); }
.photo-strip { display: grid; grid-template-columns: 1.45fr .8fr .95fr; align-items: end; gap: 14px; max-width: 920px; margin: 78px auto 0; text-align: left; }
.photo { margin: 0; overflow: hidden; background: var(--paper-deep); border: 5px solid var(--white); box-shadow: 0 8px 20px rgba(41,42,38,.08); }
.photo img { display: block; width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) contrast(.95); }
.photo-wide { height: 215px; transform: rotate(-1.2deg); }
.photo-tall { height: 265px; transform: rotate(1.2deg); }
.photo-small { height: 185px; transform: rotate(-.8deg); }
.identity-band { display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 17px 0; color: var(--muted); font-size: 12px; letter-spacing: .08em; }
.identity-band p { margin: 0; }
.section { padding-top: 138px; padding-bottom: 138px; }
.section-heading { max-width: 500px; }
.about-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 100px; align-items: start; margin-top: 66px; }
.lead { max-width: 430px; color: var(--muted); font-size: 20px; line-height: 1.7; }
.principles { border-top: 1px solid var(--line); }
.principle { display: grid; grid-template-columns: 46px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.principle-index, .pathway-number { color: var(--accent); font-size: 12px; letter-spacing: .14em; }
.principle h3 { margin-bottom: 5px; }
.principle p { margin: 0; color: var(--muted); font-size: 14px; }
.section-lined { border-top: 1px solid var(--line); }
.section-heading-wide { max-width: 670px; }
.pathway-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr 1fr; border-top: 1px solid var(--line); margin-top: 66px; }
.pathway { min-height: 280px; display: flex; flex-direction: column; padding: 28px 24px 26px; border-right: 1px solid var(--line); transition: background .25s ease, transform .25s ease; }
.pathway:first-child { border-left: 1px solid var(--line); }
.pathway:hover { background: var(--white); transform: translateY(-4px); }
.pathway-featured { background: var(--dark-panel); color: var(--white); }
.pathway-featured:hover { background: var(--dark-panel); }
.pathway-featured .pathway-number, .pathway-featured .pathway-link { color: #b3c8bc; }
.pathway h3 { margin: 46px 0 12px; }
.pathway p { min-height: 72px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.pathway-featured p { color: #d0d8d1; }
.pathway-link { margin-top: auto; color: var(--accent-dark); font-size: 13px; }
.pathway-link b { margin-left: 8px; font-size: 16px; font-weight: 400; }
.training-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; }
.timeline { border-top: 1px solid var(--line); }
.timeline-item { display: grid; grid-template-columns: 60px 1fr; gap: 22px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.timeline-item > span { color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.timeline-item h3 { margin-bottom: 4px; }
.timeline-item p { margin: 0; color: var(--muted); font-size: 14px; }
.timeline-item.is-current > span, .timeline-item.is-current h3 { color: var(--accent-dark); }
.directory-section { background: var(--dark-panel); color: var(--white); padding: 112px 0; }
.directory-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.directory-copy h2 { margin-bottom: 25px; }
.directory-copy h2 em { color: #b3c8bc; }
.directory-copy > p:last-child { max-width: 390px; color: #c6d0c9; font-size: 15px; }
.directory-links { border-top: 1px solid rgba(255,253,248,.28); }
.directory-link { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 25px 0; border-bottom: 1px solid rgba(255,253,248,.28); transition: color .2s ease; }
.directory-link:hover { color: #b3c8bc; }
.directory-link b, .directory-link small { display: block; }
.directory-link b { font-size: 19px; font-weight: 500; }
.directory-link small { margin-top: 4px; color: #c6d0c9; font-size: 13px; }
.directory-link > span:last-child { font-size: 22px; }
.directory-note { margin: 22px 0 0; color: #9eaaa1; font-size: 12px; }
.faq { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; cursor: pointer; list-style: none; font-size: 17px; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--accent); font-size: 22px; font-weight: 300; transition: transform .2s ease; }
details[open] summary span { transform: rotate(45deg); }
details p { max-width: 610px; padding: 0 42px 25px 0; margin: 0; color: var(--muted); font-size: 14px; }
.site-footer { background: var(--paper-deep); padding: 78px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; padding-bottom: 80px; }
.footer-grid h2 { margin: 0; }
.footer-contact { align-self: end; }
.footer-contact p { margin-bottom: 10px; color: var(--muted); font-size: 13px; }
.footer-contact a { display: inline-block; color: var(--accent-dark); border-bottom: 1px solid var(--accent); }
.footer-contact small { display: block; margin-top: 18px; color: var(--muted); font-size: 12px; }
.footer-bottom { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 16px; color: var(--muted); font-size: 11px; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.subhero { padding: 110px 0 105px; border-bottom: 1px solid var(--line); }
.subhero h1 { max-width: 760px; margin: 0; text-align: left; }
.subhero-copy { max-width: 660px; margin: 28px 0 0; color: var(--muted); font-size: 18px; line-height: 1.8; }
.program-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); margin-top: 66px; }
.program-card { min-height: 410px; display: flex; flex-direction: column; padding: 28px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.program-card:first-child { border-left: 1px solid var(--line); }
.program-card h3 { margin: 54px 0 8px; font-size: 21px; }
.program-card p { color: var(--muted); font-size: 14px; line-height: 1.75; }
.program-card .program-map { margin-bottom: 14px; color: var(--accent-dark); font-size: 13px; }
.program-card .button { margin-top: auto; align-self: flex-start; }
.program-card-featured { background: var(--dark-panel); color: var(--white); }
.program-card-featured .pathway-number, .program-card-featured .program-map { color: #b3c8bc; }
.program-card-featured p { color: #d0d8d1; }
.button-light { background: var(--white); color: var(--accent-dark); }
.button-outline { border: 1px solid var(--accent); color: var(--accent-dark); }
.program-card-placeholder { background: rgba(255,253,248,.45); }
.program-status { display: inline-block; margin-top: auto; color: var(--muted); font-size: 13px; }
.notice-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.notice-band-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; }
.notice-band p { margin: 0; color: var(--muted); font-size: 14px; }
.notice-band strong { color: var(--ink); font-weight: 600; }
.notice-band a { flex: 0 0 auto; color: var(--accent-dark); font-size: 13px; }
.timeline-large .timeline-item { padding: 30px 0; }
.directory-intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; align-items: start; }
.directory-empty { min-height: 300px; padding: 34px; background: var(--white); border: 1px solid var(--line); }
.directory-empty h3 { margin: 48px 0 12px; font-size: 24px; }
.directory-empty p { max-width: 520px; margin-bottom: 28px; color: var(--muted); font-size: 15px; }
.question-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); margin-top: 66px; }
.question-grid article { padding: 26px 24px 0 0; border-right: 1px solid var(--line); }
.question-grid article + article { padding-left: 24px; }
.question-grid article:last-child { border-right: 0; }
.question-grid article > span { color: var(--accent); font-size: 12px; letter-spacing: .14em; }
.question-grid h3 { margin: 34px 0 10px; }
.question-grid p { color: var(--muted); font-size: 14px; }
.founder-intro { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 90px; align-items: center; }
.founder-photo { margin: 0; background: var(--paper-deep); border: 5px solid var(--white); box-shadow: 0 12px 28px rgba(74,78,68,.12); transform: rotate(-1deg); }
.founder-photo img { display: block; width: 100%; aspect-ratio: 1 / 1.08; object-fit: cover; }
.founder-copy { max-width: 570px; }
.founder-copy h2 { margin-bottom: 24px; }
.founder-copy p:not(.eyebrow), .book-list p { color: var(--muted); font-size: 16px; line-height: 1.85; }
.founder-detail-grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 100px; align-items: start; }
.founder-detail-grid-reverse { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
.founder-detail-copy { max-width: 640px; }
.founder-detail-copy p { margin: 0 0 20px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.founder-detail-copy p:last-child { margin-bottom: 0; }
.founder-detail-copy strong { color: var(--ink); font-weight: 600; }
.book-list { border-top: 1px solid var(--line); }
.book-list p { margin: 0; padding: 22px 0; border-bottom: 1px solid var(--line); }
.book-list strong { color: var(--ink); font-weight: 600; }
.video-placeholder { min-height: 430px; display: grid; grid-template-columns: minmax(210px, .65fr) minmax(0, 1.35fr); align-items: center; gap: clamp(36px, 7vw, 100px); padding: clamp(36px, 6vw, 72px); background: var(--dark-panel); color: var(--white); text-align: left; }
.video-copy { max-width: 300px; }
.video-placeholder h2 { margin: 22px 0 14px; }
.video-placeholder h2 em { color: #b3c8bc; }
.video-placeholder p { max-width: 280px; margin: 0; color: #d0d8d1; font-size: 14px; }
.video-frame { width: 100%; aspect-ratio: 16 / 9; margin-top: 0; overflow: hidden; background: #17211d; }
.video-frame iframe { display: block; width: 100%; height: 100%; border: 0; }

@media (max-width: 680px) {
  .video-placeholder { grid-template-columns: 1fr; gap: 30px; min-height: 0; padding: 34px 24px; }
  .video-copy { max-width: none; text-align: center; }
  .video-placeholder p { max-width: none; }
}

@media (max-width: 900px) {
  .shell { width: min(var(--shell), calc(100% - 40px)); }
  .nav-links { gap: 18px; }
  .about-grid, .training-layout, .directory-grid, .faq { gap: 56px; }
  .pathway-grid { grid-template-columns: repeat(2, 1fr); }
  .pathway:nth-child(2) { border-right: 0; }
  .pathway:nth-child(n+3) { border-top: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .shell { width: min(var(--shell), calc(100% - 32px)); }
  .nav { min-height: 96px; }
  .brand-lockup { gap: 9px; }
  .brand-logo-nyx { height: 55px; max-width: 118px; }
  .brand-logo-aedp { height: 44px; max-width: 170px; }
  .brand-divider { height: 36px; }
  .nav-links, .nav-contact { display: none; }
  .menu-toggle { display: block; }
  .hero { min-height: auto; padding: 78px 0 62px; }
  .subhero { padding: 74px 0 66px; }
  .subhero h1 { font-size: clamp(38px, 11vw, 54px); }
  .subhero-copy { font-size: 15px; }
  .hero-copy { font-size: 15px; }
  .hero-actions { flex-direction: column; gap: 16px; }
  .button { width: min(100%, 260px); justify-content: center; }
  .photo-strip { grid-template-columns: 1.3fr .85fr; gap: 8px; margin-top: 52px; }
  .photo-wide { height: 160px; }
  .photo-tall { height: 200px; }
  .photo-small { display: none; }
  .identity-band { display: block; padding: 15px 0; }
  .identity-band p + p { margin-top: 4px; }
  .section { padding-top: 88px; padding-bottom: 88px; }
  .about-grid, .training-layout, .directory-grid, .faq, .footer-grid { grid-template-columns: 1fr; gap: 42px; }
  .program-grid, .question-grid { grid-template-columns: 1fr; margin-top: 44px; }
  .program-card, .program-card:first-child { min-height: 330px; border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
  .program-card + .program-card { border-top: 0; }
  .notice-band-inner { display: block; padding: 18px 0; }
  .notice-band a { display: inline-block; margin-top: 10px; }
  .directory-intro-grid { grid-template-columns: 1fr; gap: 42px; }
  .founder-intro { grid-template-columns: 1fr; gap: 42px; }
  .founder-photo { max-width: 430px; }
  .founder-detail-grid, .founder-detail-grid-reverse { grid-template-columns: 1fr; gap: 42px; }
  .founder-detail-grid-reverse .section-heading { order: -1; }
  .directory-empty { padding: 26px; }
  .question-grid article, .question-grid article + article { padding: 22px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .question-grid article:last-child { border-bottom: 0; }
  .lead { font-size: 18px; }
  .pathway-grid { grid-template-columns: 1fr; margin-top: 44px; }
  .pathway, .pathway:nth-child(2) { min-height: 230px; border-right: 1px solid var(--line); border-left: 1px solid var(--line); border-top: 0; }
  .pathway + .pathway { border-top: 1px solid var(--line); }
  .pathway h3 { margin-top: 30px; }
  .directory-section { padding: 82px 0; }
  .footer-grid { padding-bottom: 54px; }
  .footer-bottom { flex-wrap: wrap; gap: 8px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}