:root {
  color-scheme: light;
  --navy-950: #07101f;
  --navy-900: #0b1830;
  --navy-800: #11264a;
  --navy-700: #1a3866;
  --paper: #f6f2e8;
  --paper-deep: #ebe3d2;
  --white: #ffffff;
  --gold: #caa85e;
  --gold-bright: #e3c77f;
  --gold-soft: #ead8ad;
  --cyan: #67dcf5;
  --cyan-bright: #9deeff;
  --ink: #172033;
  --muted: #647087;
  --line: rgba(17, 38, 74, 0.14);
  --line-gold: rgba(202, 168, 94, 0.34);
  --shadow: 0 24px 70px rgba(7, 16, 31, 0.16);
  --radius: 22px;
  --shell: min(1180px, calc(100vw - 48px));
  font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: clip; color: var(--ink); background: var(--white); font-size: 16px; line-height: 1.8; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
::selection { color: var(--navy-950); background: var(--gold-bright); }

.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 10px 16px; color: var(--white); background: var(--navy-950); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }

.section-shell { width: var(--shell); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; min-height: 78px; padding: 12px max(24px, calc((100vw - 1180px) / 2)); border-bottom: 1px solid rgba(255,255,255,.1); color: var(--white); background: rgba(7,16,31,.94); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand span { display: grid; line-height: 1.1; }
.brand strong { font-family: Georgia, "Times New Roman", serif; font-size: 21px; letter-spacing: .15em; }
.brand small { margin-top: 5px; color: rgba(255,255,255,.62); font-size: 9px; letter-spacing: .08em; }
.site-nav { display: flex; align-items: center; gap: 3px; font-size: 13px; font-weight: 700; }
.site-nav a { padding: 9px 12px; border-radius: 999px; color: rgba(255,255,255,.76); text-decoration: none; }
.site-nav a:hover, .site-nav a.is-current { color: var(--white); background: rgba(255,255,255,.08); }
.site-nav .nav-cta { margin-left: 5px; color: var(--navy-950); background: var(--gold-bright); }
.site-nav .nav-cta:hover, .site-nav .nav-cta.is-current { color: var(--navy-950); background: var(--gold-soft); }
.nav-toggle { display: none; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; padding: 8px 13px; color: var(--white); background: transparent; font-size: 13px; font-weight: 800; }

.hero { width: var(--shell); margin-inline: auto; }
.home-hero { display: grid; grid-template-columns: minmax(0, .98fr) minmax(380px, 1.02fr); gap: clamp(42px, 5vw, 64px); align-items: center; min-height: 680px; padding-block: 72px 92px; }
.hero-name { margin: 0 0 22px; color: var(--gold); font-family: Georgia, "Times New Roman", serif; font-size: 15px; letter-spacing: .08em; }
.hero h1, .page-hero h1, .ai-hero h1 { margin: 0; color: var(--navy-950); font-family: Georgia, "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(48px, 6vw, 82px); font-weight: 500; line-height: 1.14; letter-spacing: -.035em; }
.home-hero h1 span { display: block; }
.hero-lead { max-width: 650px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 23px; border: 1px solid transparent; border-radius: 999px; font-size: 14px; font-weight: 900; letter-spacing: .02em; text-decoration: none; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:disabled { cursor: wait; opacity: .66; transform: none; }
.button-gold { color: var(--navy-950); background: var(--gold-bright); box-shadow: 0 14px 35px rgba(202,168,94,.24); }
.button-ghost { color: var(--navy-900); border-color: var(--line); background: transparent; }
.button-outline { color: var(--navy-900); border-color: rgba(17,38,74,.28); background: var(--white); }
.button-cyan { color: #03151e; background: linear-gradient(135deg, var(--cyan), var(--cyan-bright)); box-shadow: 0 16px 42px rgba(103,220,245,.25); }
.button.full { width: 100%; }
.text-link { display: inline-flex; gap: 10px; align-items: center; margin-top: 28px; color: var(--navy-800); font-weight: 900; text-decoration: none; }
.text-link span { color: var(--gold); transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }
.text-link.light { color: var(--white); }

.hero-media { position: relative; margin: 0; }
.hero-media::before { position: absolute; top: -18px; right: -18px; width: 42%; height: 42%; border-top: 1px solid var(--gold); border-right: 1px solid var(--gold); content: ""; }
.hero-media img { width: 100%; min-height: 500px; border-radius: 2px 60px 2px 2px; object-fit: cover; box-shadow: var(--shadow); }
.hero-media figcaption { position: absolute; right: -20px; bottom: 26px; display: grid; min-width: 235px; padding: 17px 22px; color: var(--white); background: var(--navy-900); box-shadow: var(--shadow); }
.hero-media figcaption span { color: var(--gold-bright); font-family: Georgia, serif; font-size: 12px; letter-spacing: .12em; }
.hero-media figcaption strong { margin-top: 4px; font-size: 15px; }

.section-label { margin: 0 0 12px; color: var(--gold); font-size: 11px; font-weight: 900; letter-spacing: .18em; }
.section-intro { margin-bottom: 34px; }
.section-intro.compact { margin-bottom: 22px; }
.section-intro h2, .next-event-layout h2, .activity-preview h2, .ai-feature h2, .about-copy h2, .line-copy h2, .join-layout h2, .page-section h2, .rules-band h2 { margin: 0; color: var(--navy-950); font-family: Georgia, "Yu Mincho", serif; font-size: clamp(32px, 4.5vw, 56px); font-weight: 500; line-height: 1.25; letter-spacing: -.025em; }

.next-event-band { padding-block: 54px; color: var(--white); background: var(--navy-900); }
.next-event-layout { display: grid; grid-template-columns: 220px 1fr; gap: 48px; align-items: start; }
.next-event-layout h2 { color: var(--white); font-size: 31px; }
.event-feature { min-height: 128px; }
.loading-text { margin: 0; color: var(--muted); }
.next-event-band .loading-text { color: rgba(255,255,255,.6); }
.event-card { display: grid; grid-template-columns: minmax(160px, .3fr) 1fr auto; gap: 28px; align-items: center; padding: 24px 0; border-bottom: 1px solid var(--line); }
.event-card.featured { padding: 0; border: 0; }
.event-date { display: grid; color: var(--gold-bright); }
.event-date strong { font-family: Georgia, serif; font-size: 26px; line-height: 1.2; }
.event-date span { font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.event-main h3 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: 25px; font-weight: 500; line-height: 1.35; }
.event-main p { margin: 7px 0 0; color: var(--muted); }
.featured .event-main p { color: rgba(255,255,255,.64); }
.event-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.event-actions a { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; font-weight: 800; text-decoration: none; }
.featured .event-actions a { border-color: rgba(255,255,255,.25); }

.quick-section { padding-block: 86px; }
.quick-links { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.quick-link { min-height: 176px; padding: 22px 20px; border-right: 1px solid var(--line); text-decoration: none; transition: color .2s ease, background .2s ease; }
.quick-link:last-child { border-right: 0; }
.quick-link span { display: block; color: var(--gold); font-family: Georgia, serif; font-size: 13px; }
.quick-link strong { display: block; margin-top: 35px; color: var(--navy-900); font-size: 16px; }
.quick-link small { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
.quick-link:hover { color: var(--white); background: var(--navy-900); }
.quick-link:hover strong, .quick-link:hover small { color: inherit; }

.activity-preview { padding-block: 96px; background: var(--paper); }
.split-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 80px; align-items: end; }
.split-heading > p { margin: 0 0 7px; color: var(--muted); }
.activity-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.activity-story { position: relative; min-height: 330px; overflow: hidden; background: var(--navy-900); }
.activity-story-wide { grid-column: 1 / -1; min-height: 430px; }
.activity-story img { width: 100%; height: 100%; min-height: inherit; object-fit: cover; opacity: .72; transition: transform .6s ease, opacity .4s ease; }
.activity-story::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, transparent 28%, rgba(7,16,31,.9)); }
.activity-story > div { position: absolute; right: 28px; bottom: 26px; left: 28px; z-index: 1; color: var(--white); }
.activity-story span { color: var(--gold-bright); font-size: 10px; font-weight: 900; letter-spacing: .18em; }
.activity-story h3 { margin: 6px 0 5px; font-family: Georgia, "Yu Mincho", serif; font-size: 30px; font-weight: 500; }
.activity-story p { max-width: 640px; margin: 0; color: rgba(255,255,255,.7); }
.activity-story:hover img { transform: scale(1.035); opacity: .82; }

.ai-feature { position: relative; display: grid; grid-template-columns: 1fr .72fr; gap: 80px; align-items: center; margin-block: 104px; padding: 72px; overflow: hidden; color: var(--white); background: var(--navy-950); }
.ai-feature h2 { color: var(--white); font-size: clamp(36px, 3.4vw, 44px); }
.ai-feature h2 span { display: block; margin-top: 10px; font-size: .72em; line-height: 1.45; }
.ai-feature-copy > p:not(.section-label) { max-width: 650px; color: rgba(255,255,255,.65); }
.ai-schedule { position: relative; z-index: 1; margin: 0; }
.ai-schedule > div { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.ai-schedule dt { color: var(--gold-bright); font-size: 12px; font-weight: 800; }
.ai-schedule dd { display: grid; margin: 0; }
.ai-schedule dd strong { font-family: Georgia, serif; font-size: 26px; }
.ai-schedule dd span { color: rgba(255,255,255,.58); font-size: 12px; }
.ai-orbit { position: absolute; right: -100px; bottom: -210px; width: 520px; height: 520px; border: 1px solid rgba(103,220,245,.22); border-radius: 50%; }
.ai-orbit span { position: absolute; inset: 13%; border: 1px solid rgba(103,220,245,.16); border-radius: inherit; }
.ai-orbit span:nth-child(2) { inset: 27%; }
.ai-orbit span:nth-child(3) { inset: 41%; background: var(--cyan); box-shadow: 0 0 70px rgba(103,220,245,.7); }

.about-band { padding-block: 100px; color: var(--white); background: var(--navy-800); }
.about-layout { display: grid; grid-template-columns: .5fr 1fr; gap: 90px; align-items: center; }
.about-number { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid var(--line-gold); border-radius: 50%; }
.about-number strong { color: var(--gold-bright); font-family: Georgia, serif; font-size: clamp(55px, 8vw, 90px); font-weight: 400; line-height: 1; }
.about-number span { margin-top: -30%; color: rgba(255,255,255,.58); font-size: 11px; letter-spacing: .15em; }
.about-copy h2 { color: var(--white); }
.about-copy > p:not(.section-label) { color: rgba(255,255,255,.65); }

.line-section { display: grid; grid-template-columns: 1fr 280px; gap: 90px; align-items: center; padding-block: 96px; }
.line-copy p:last-child { max-width: 600px; color: var(--muted); }
.line-qr { margin: 0; text-align: center; }
.line-qr img { width: 220px; height: 220px; margin-inline: auto; border: 1px solid var(--line); object-fit: cover; }
.line-qr figcaption { margin-top: 12px; color: var(--muted); font-size: 11px; }
.join-band { padding-block: 64px; background: var(--paper); }
.join-layout { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.join-layout h2 { font-size: 40px; }
.join-layout p:not(.section-label) { margin: 7px 0 0; color: var(--muted); }

.site-footer { display: grid; grid-template-columns: 1fr auto auto; gap: 50px; align-items: center; padding: 38px max(24px, calc((100vw - 1180px) / 2)); color: rgba(255,255,255,.62); background: var(--navy-950); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand div { display: grid; }
.footer-brand strong { color: var(--white); font-family: Georgia, serif; letter-spacing: .14em; }
.footer-brand span { font-size: 9px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; font-size: 12px; }
.site-footer nav a { text-decoration: none; }
.site-footer > p { margin: 0; font-size: 11px; }

.page-hero { padding-block: 104px; color: var(--white); background: var(--navy-900); }
.page-hero h1 { color: var(--white); font-size: clamp(46px, 6vw, 74px); }
.page-hero p:not(.section-label) { max-width: 670px; margin: 24px 0 0; color: rgba(255,255,255,.64); font-size: 17px; }
.page-hero-events { background: radial-gradient(circle at 80% 50%, rgba(202,168,94,.24), transparent 35%), var(--navy-900); }
.page-section { padding-block: 90px; }
.event-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 36px; }
.event-toolbar h2 { font-size: 42px; }
.event-toolbar p { margin: 4px 0 0; color: var(--muted); }
.events-list { border-top: 1px solid var(--line); }
.calendar-categories { padding-block: 32px; background: var(--paper); }
.category-row { display: flex; flex-wrap: wrap; gap: 10px; }
.category-row span { padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: var(--white); font-size: 12px; }
.calendar-fallback { padding: 28px; border: 1px solid var(--line); background: var(--paper); }

.page-hero-photo { position: relative; min-height: 620px; overflow: hidden; background: var(--navy-950); }
.page-hero-photo > .section-shell { position: relative; z-index: 2; }
.page-hero-photo > img { position: absolute; inset: 0 0 0 auto; width: 58%; height: 100%; object-fit: cover; opacity: .56; mask-image: linear-gradient(90deg, transparent, #000 30%); }
.report-list { border-top: 1px solid var(--line); }
.report-row { display: grid; grid-template-columns: 80px 1fr 150px; gap: 28px; padding: 36px 0; border-bottom: 1px solid var(--line); }
.report-index { color: var(--gold); font-family: Georgia, serif; font-size: 20px; }
.report-row h2 { font-size: 34px; }
.report-row p:not(.section-label) { max-width: 720px; margin: 10px 0 0; color: var(--muted); }
.report-row time { color: var(--muted); text-align: right; }
.image-ribbon { display: grid; grid-template-columns: repeat(3, 1fr); }
.image-ribbon img { width: 100%; height: 320px; object-fit: cover; }

.about-hero { background: radial-gradient(circle at 74% 44%, rgba(103,220,245,.13), transparent 28%), var(--navy-900); }
.origin-layout { display: grid; grid-template-columns: .45fr 1fr; gap: 90px; }
.origin-number { display: grid; align-content: start; }
.origin-number strong { color: var(--gold); font-family: Georgia, serif; font-size: clamp(72px, 11vw, 130px); font-weight: 400; line-height: .8; }
.origin-number span { margin-top: 18px; color: var(--muted); letter-spacing: .16em; }
.origin-layout h2 { font-size: 44px; }
.origin-copy > .section-label { color: var(--gold); }
.founding-story { margin-top: 32px; }
.founding-story p { margin: 0; color: var(--muted); }
.founding-story p + p { margin-top: 24px; }
.philosophy-band { padding-block: 96px; color: var(--white); background: var(--navy-800); }
.philosophy-band .section-label { color: var(--gold-bright); }
.philosophy-band blockquote { max-width: 1050px; margin: 18px 0 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(28px, 3.8vw, 48px); line-height: 1.6; }
.philosophy-band p { max-width: 700px; color: rgba(255,255,255,.65); }
.activity-archive { padding-bottom: 120px; }
.archive-heading { display: grid; grid-template-columns: 1fr .65fr; gap: 70px; align-items: end; margin-bottom: 50px; }
.archive-heading h2 { margin-bottom: 0; }
.archive-heading > p { margin: 0; color: var(--muted); }
.activity-history { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.activity-history li { display: grid; grid-template-columns: 190px 1fr; gap: 46px; align-items: start; padding: 27px 0; border-bottom: 1px solid var(--line); }
.activity-history time { color: var(--gold); font-family: Georgia, "Yu Mincho", serif; font-size: 21px; white-space: nowrap; }
.activity-history time span { display: inline-block; min-width: 48px; margin-left: 10px; color: var(--navy-800); font-family: Inter, "Noto Sans JP", sans-serif; font-size: 13px; font-weight: 900; }
.activity-history p { margin: 0; color: var(--muted); }
.archive-note { margin: 24px 0 0; color: var(--muted); font-size: 13px; }

.organization-hero { background: linear-gradient(120deg, var(--navy-950), var(--navy-800)); }
.board-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.board-grid article { min-height: 160px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.board-grid article.board-lead { color: var(--white); background: var(--navy-900); }
.board-grid span { color: var(--gold); font-size: 11px; font-weight: 900; }
.board-grid h3 { margin: 28px 0 0; font-family: Georgia, "Yu Mincho", serif; font-size: 24px; font-weight: 500; }
.board-grid h3 + h3 { margin-top: 7px; }
.director-list { padding: 28px; margin-top: 24px; background: var(--paper); }
.director-list h3 { margin: 0; }
.director-list p { margin: 8px 0 0; color: var(--muted); }
.rules-band { padding-block: 90px; background: var(--paper); }
.rules-layout { display: grid; grid-template-columns: .55fr 1fr; gap: 90px; }
.fee-list { margin: 24px 0 0; }
.fee-list > div { display: flex; justify-content: space-between; padding: 20px 0; border-bottom: 1px solid var(--line); }
.fee-list dd { margin: 0; font-family: Georgia, serif; font-size: 22px; }
.fee-list dd small { display: block; color: var(--muted); font-family: inherit; font-size: 11px; }
.rule-summary { padding-left: 22px; color: var(--muted); }
.rule-summary li { margin-block: 8px; }
.rules-full { margin-top: 24px; border-top: 1px solid var(--line); }
.rules-full summary { padding: 18px 0; font-weight: 900; cursor: pointer; }
.rules-full div { color: var(--muted); }

.join-hero { color: var(--navy-950); background: var(--paper); }
.join-hero h1 { color: var(--navy-950); }
.join-hero p:not(.section-label) { color: var(--muted); }
.join-flow ol { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.join-flow li { display: grid; grid-template-columns: 100px 1fr; gap: 30px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.join-flow li > span { color: var(--gold); font-family: Georgia, serif; font-size: 24px; }
.join-flow h3 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: 26px; font-weight: 500; }
.join-flow p { margin: 6px 0 0; color: var(--muted); }
.membership-card { display: flex; align-items: center; justify-content: space-between; gap: 50px; margin-bottom: 50px; padding: 52px; color: var(--white); background: var(--navy-900); }
.membership-card h2 { color: var(--white); }
.membership-card p { color: rgba(255,255,255,.66); }
.membership-card p strong { color: var(--gold-bright); }
.join-note { padding-bottom: 70px; color: var(--muted); }

.ai-page, .member-ai-page { background: var(--navy-950); }
.ai-page .site-header { border-color: rgba(103,220,245,.12); }
.ai-hero { display: grid; grid-template-columns: 1fr .85fr; gap: 70px; align-items: center; min-height: 670px; padding-block: 86px; color: var(--white); }
.ai-hero h1 { color: var(--white); font-size: clamp(46px, 6vw, 74px); }
.ai-hero > div > p:not(.section-label) { max-width: 650px; color: rgba(255,255,255,.65); }
.free-badge { display: inline-flex; margin: 0 0 18px; padding: 7px 13px; border: 1px solid rgba(103,220,245,.38); border-radius: 999px; color: var(--cyan); font-size: 12px; font-weight: 900; }
.study-schedule { min-width: 0; }
.study-facts { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border: 1px solid rgba(103,220,245,.24); background: rgba(255,255,255,.035); }
.study-facts > div { min-height: 145px; padding: 28px; border-right: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); }
.study-facts > div:nth-child(even) { border-right: 0; }
.study-facts > div:nth-child(n+3) { border-bottom: 0; }
.study-facts dt { color: rgba(255,255,255,.48); font-size: 11px; font-weight: 900; letter-spacing: .08em; }
.study-facts dd { margin: 8px 0 0; color: var(--white); font-family: Georgia, "Yu Mincho", serif; font-size: 28px; line-height: 1.35; overflow-wrap: anywhere; }
.study-facts dd span { display: block; margin-top: 4px; color: rgba(255,255,255,.62); font-family: Inter, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; font-size: 14px; font-weight: 700; }
.study-facts .study-fact-free dd { color: var(--cyan); font-size: 44px; }
.study-paid-note { margin: 14px 0 0; padding: 13px 16px; border-left: 3px solid var(--gold-bright); color: rgba(255,255,255,.78); background: rgba(202,168,94,.1); font-size: 13px; font-weight: 700; line-height: 1.7; }
.ai-hero figure { margin: 0; }
.ai-hero figure img { min-height: 440px; border-radius: 80px 2px 2px; object-fit: cover; opacity: .82; box-shadow: 0 0 90px rgba(103,220,245,.14); }
.ai-hero figcaption { margin-top: 12px; color: var(--cyan); font-size: 11px; letter-spacing: .14em; text-align: right; }
.ai-program-band { padding-block: 90px; background: var(--white); }
.study-topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.study-topic-grid article { min-height: 240px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.study-topic-grid article > span { color: var(--gold); font-family: Georgia, serif; font-size: 18px; }
.study-topic-grid h3 { margin: 38px 0 8px; font-family: Georgia, "Yu Mincho", serif; font-size: 24px; font-weight: 500; }
.study-topic-grid p { margin: 0; color: var(--muted); }
.program-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.program-columns article { padding-top: 24px; border-top: 2px solid var(--cyan); }
.program-columns article > span { color: var(--navy-700); font-size: 12px; font-weight: 900; }
.program-columns h2 { margin: 10px 0; font-family: Georgia, "Yu Mincho", serif; font-size: 40px; font-weight: 500; }
.program-columns p, .program-columns li { color: var(--muted); }
.program-columns ul { padding-left: 20px; }
.pricing-section { padding-block: 100px; }
.price-panel { display: grid; grid-template-columns: 1fr 380px; gap: 70px; align-items: center; padding: 60px; color: var(--white); border: 1px solid rgba(103,220,245,.24); background: linear-gradient(135deg, rgba(17,38,74,.94), rgba(7,16,31,.98)); }
.price-panel h2 { color: var(--white); }
.price-panel > div > p:not(.section-label), .benefit-list { color: rgba(255,255,255,.64); }
.benefit-list { padding-left: 20px; }
.price-box { padding: 32px; background: rgba(255,255,255,.06); }
.price-box > p { margin: 0; color: var(--cyan); font-size: 12px; font-weight: 900; }
.price-box > strong { display: block; margin: 5px 0 0; font-family: Georgia, serif; font-size: 60px; font-weight: 400; line-height: 1; }
.price-box > strong small { font-family: inherit; font-size: 16px; }
.price-box > span { display: block; margin: 10px 0 24px; color: rgba(255,255,255,.58); }
.price-box > small { display: block; margin-top: 12px; color: rgba(255,255,255,.46); text-align: center; }
.form-message { min-height: 1.7em; margin: 9px 0 0; color: var(--cyan); font-size: 12px; text-align: center; }
.member-course-section { padding-block: 100px; }
.member-course-panel { display: grid; grid-template-columns: 1fr 380px; gap: 70px; align-items: center; padding: 60px; color: var(--white); border: 1px solid rgba(103,220,245,.24); background: linear-gradient(135deg, rgba(17,38,74,.94), rgba(7,16,31,.98)); }
.member-course-panel h2 { color: var(--white); overflow-wrap: anywhere; }
.member-course-panel > div:first-child > p:not(.section-label), .member-course-panel .benefit-list { color: rgba(255,255,255,.64); }
.benefit-list li + li { margin-top: 8px; }
.member-course-price { border: 1px solid rgba(103,220,245,.14); }
.advanced-course-panel { padding: 60px; color: var(--white); border: 1px solid rgba(103,220,245,.24); background: linear-gradient(135deg, rgba(17,38,74,.94), rgba(7,16,31,.98)); }
.advanced-course-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); column-gap: 70px; }
.advanced-course-intro .section-label, .advanced-course-intro h2 { grid-column: 1; }
.advanced-course-intro > p:not(.section-label):not(.course-operator), .advanced-course-intro .benefit-list { color: rgba(255,255,255,.64); }
.advanced-course-intro .benefit-list { grid-column: 2; grid-row: 1 / span 4; align-self: center; }
.course-operator { color: var(--cyan); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.advanced-price-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); margin-top: 40px; border-block: 1px solid rgba(255,255,255,.14); }
.advanced-price-grid article { padding: 28px 22px; }
.advanced-price-grid article + article { border-left: 1px solid rgba(255,255,255,.14); }
.advanced-price-grid article.is-featured { background: rgba(103,220,245,.1); }
.advanced-price-grid span { color: var(--cyan); font-size: 12px; font-weight: 900; }
.advanced-price-grid strong { display: block; margin: 12px 0; font-family: Georgia, serif; font-size: clamp(26px, 3vw, 38px); font-weight: 400; }
.advanced-price-grid strong small { font-size: 12px; }
.advanced-price-grid p { margin: 0; color: rgba(255,255,255,.58); font-size: 13px; }
.advanced-course-action { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 30px; }
.advanced-course-action small { max-width: 480px; color: rgba(255,255,255,.48); }
.ai-faq { padding-bottom: 100px; color: var(--white); }
.ai-faq h2 { color: var(--white); }
.ai-faq details { border-top: 1px solid rgba(255,255,255,.14); }
.ai-faq details:last-child { border-bottom: 1px solid rgba(255,255,255,.14); }
.ai-faq summary { padding: 21px 0; font-weight: 900; cursor: pointer; }
.ai-faq details p { color: rgba(255,255,255,.6); }
.general-access { padding-bottom: 100px; }
.general-access-card { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; padding: 36px 42px; color: var(--ink); background: var(--paper); }
.general-access-card h2 { margin: 4px 0; color: var(--ink); font-size: 34px; overflow-wrap: anywhere; }
.general-access-card > div:first-child > p:last-child { margin: 0; color: var(--muted); }
.general-price { display: grid; min-width: 290px; }
.general-price > strong { font-family: Georgia, serif; font-size: 38px; font-weight: 400; line-height: 1.1; }
.general-price > strong small { font-size: 14px; }
.general-price > span { margin: 6px 0 16px; color: var(--muted); font-size: 12px; }
.general-price .button { min-height: 46px; }
.general-price .form-message { color: var(--navy-700); }

.member-ai-page { min-height: 100vh; color: var(--white); background: radial-gradient(circle at 80% 10%, rgba(103,220,245,.14), transparent 28%), var(--navy-950); }
.member-ai-shell { width: min(940px, calc(100vw - 40px)); margin-inline: auto; padding: 38px 0 30px; }
.member-brand { display: inline-flex; gap: 12px; align-items: center; color: var(--white); text-decoration: none; }
.member-brand span { display: grid; line-height: 1.1; }
.member-brand strong { font-family: Georgia, serif; letter-spacing: .15em; }
.member-brand small { margin-top: 5px; color: var(--cyan); font-size: 9px; letter-spacing: .14em; }
.member-ai-hero { padding-block: 96px 66px; }
.member-ai-hero h1 { margin: 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(48px, 7vw, 80px); font-weight: 500; line-height: 1.1; }
.member-ai-hero > p:last-child { max-width: 680px; color: rgba(255,255,255,.62); }
.member-benefits { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,.14); }
.member-benefits article { padding: 34px; background: var(--navy-900); }
.member-benefits span { color: var(--cyan); font-size: 11px; font-weight: 900; }
.member-benefits h2 { margin: 10px 0; font-family: Georgia, "Yu Mincho", serif; font-weight: 500; }
.member-benefits p { color: rgba(255,255,255,.58); }
.member-price { margin-top: 36px; padding: 42px; border: 1px solid rgba(103,220,245,.3); text-align: center; }
.member-price > div > p { margin: 0; color: var(--cyan); font-size: 12px; font-weight: 900; }
.member-price strong { display: block; margin-top: 7px; font-family: Georgia, serif; font-size: 62px; font-weight: 400; line-height: 1.1; }
.member-price strong small { font-family: inherit; font-size: 17px; }
.member-price > div > span { display: block; margin: 8px 0 25px; color: rgba(255,255,255,.55); }
.member-requirement { max-width: 620px; margin: 0 auto 24px; color: rgba(255,255,255,.62); font-size: 14px; }
.member-price form { max-width: 440px; margin-inline: auto; }
.member-price > small { display: block; margin-top: 18px; color: rgba(255,255,255,.44); }
.member-price-options { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 24px 0; background: rgba(255,255,255,.14); }
.member-price-options article { padding: 28px 20px; background: var(--navy-900); }
.member-price-options article > p { margin: 0; color: var(--cyan); font-size: 12px; font-weight: 900; }
.member-price-options article > span { display: block; margin-top: 12px; color: rgba(255,255,255,.55); }
.member-course-link { max-width: 440px; margin-inline: auto; }
.member-footer { display: flex; justify-content: space-between; padding-top: 42px; color: rgba(255,255,255,.45); font-size: 11px; }

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: none; padding: 18px 24px 24px; border-bottom: 1px solid rgba(255,255,255,.12); background: var(--navy-950); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 11px 12px; }
  .site-nav .nav-cta { margin: 6px 0 0; text-align: center; }
  .home-hero, .ai-hero { grid-template-columns: 1fr; }
  .home-hero { padding-top: 54px; }
  .hero-media img { min-height: 420px; }
  .quick-links { grid-template-columns: repeat(3, 1fr); }
  .quick-link:nth-child(3) { border-right: 0; }
  .quick-link:nth-child(n+4) { border-top: 1px solid var(--line); }
  .ai-feature, .about-layout, .line-section, .origin-layout, .rules-layout { grid-template-columns: 1fr; gap: 50px; }
  .origin-number { grid-template-columns: auto 1fr; gap: 18px; align-items: end; }
  .origin-number strong { font-size: 92px; }
  .origin-number span { margin-bottom: 6px; }
  .about-number { width: 300px; }
  .board-grid { grid-template-columns: repeat(2, 1fr); }
  .price-panel, .member-course-panel { grid-template-columns: 1fr; }
  .advanced-course-intro { grid-template-columns: 1fr; }
  .advanced-course-intro .benefit-list { grid-column: 1; grid-row: auto; }
  .advanced-price-grid { grid-template-columns: 1fr; }
  .advanced-price-grid article + article { border-top: 1px solid rgba(255,255,255,.14); border-left: 0; }
  .advanced-course-action { align-items: flex-start; flex-direction: column; }
  .study-topic-grid { grid-template-columns: 1fr 1fr; }
  .general-access-card { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  :root { --shell: min(100% - 32px, 1180px); }
  .site-header { min-height: 68px; padding-inline: 16px; }
  .brand small { display: none; }
  .home-hero { min-height: auto; padding-block: 46px 72px; }
  .hero h1, .page-hero h1, .ai-hero h1 { font-size: clamp(40px, 12vw, 58px); }
  .hero-lead { font-size: 15px; }
  .hero-media img { min-height: 330px; border-radius: 2px 38px 2px 2px; }
  .hero-media figcaption { right: -8px; min-width: 210px; }
  .next-event-layout { grid-template-columns: 1fr; gap: 28px; }
  .event-card { grid-template-columns: 1fr; gap: 12px; }
  .event-actions { margin-top: 5px; }
  .quick-section, .page-section { padding-block: 64px; }
  .quick-links { grid-template-columns: 1fr 1fr; }
  .quick-link, .quick-link:nth-child(3) { border-right: 1px solid var(--line); }
  .quick-link:nth-child(even) { border-right: 0; }
  .quick-link:nth-child(n+3) { border-top: 1px solid var(--line); }
  .split-heading { grid-template-columns: 1fr; gap: 24px; }
  .activity-preview { padding-block: 70px; }
  .activity-grid { grid-template-columns: 1fr; }
  .activity-story-wide { grid-column: auto; min-height: 360px; }
  .activity-story { min-height: 320px; }
  .ai-feature { margin-block: 70px; padding: 42px 24px; }
  .ai-orbit { display: none; }
  .ai-schedule > div { grid-template-columns: 1fr; }
  .about-band { padding-block: 74px; }
  .about-number { width: 230px; }
  .line-section { grid-template-columns: 1fr; padding-block: 70px; }
  .join-layout, .event-toolbar, .membership-card { align-items: flex-start; flex-direction: column; }
  .site-footer { grid-template-columns: 1fr; gap: 25px; }
  .page-hero { padding-block: 76px; }
  .page-hero-photo { min-height: 520px; }
  .page-hero-photo > img { width: 100%; opacity: .34; mask-image: linear-gradient(180deg, transparent, #000 30%); }
  .report-row { grid-template-columns: 45px 1fr; }
  .report-row time { grid-column: 2; text-align: left; }
  .image-ribbon { grid-template-columns: 1fr; }
  .image-ribbon img { height: 250px; }
  .origin-number strong { font-size: 86px; }
  .archive-heading { grid-template-columns: 1fr; gap: 20px; }
  .activity-history li { grid-template-columns: 1fr; gap: 8px; padding: 23px 0; }
  .board-grid { grid-template-columns: 1fr; }
  .join-flow li { grid-template-columns: 56px 1fr; }
  .membership-card, .price-panel, .member-course-panel, .advanced-course-panel { padding: 36px 24px; }
  .program-columns, .member-benefits, .study-facts, .study-topic-grid { grid-template-columns: 1fr; }
  .study-facts > div, .study-facts > div:nth-child(even), .study-facts > div:nth-child(n+3) { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .study-facts > div:last-child { border-bottom: 0; }
  .study-topic-grid article { min-height: auto; }
  .ai-hero { min-height: auto; padding-block: 64px; }
  .ai-hero figure img { min-height: 320px; border-radius: 50px 2px 2px; }
  .pricing-section { padding-block: 72px; }
  .member-course-section { padding-block: 72px; }
  .general-access-card { padding: 30px 24px; }
  .general-price { min-width: 0; }
  .member-ai-hero { padding-block: 72px 50px; }
  .member-price { padding: 32px 20px; }
  .member-price strong { font-size: 48px; }
  .member-price-options { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}