:root {
  --ink: #18231d;
  --ink-soft: #405048;
  --paper: #f5f0e5;
  --paper-light: #fbf8f1;
  --green: #164b38;
  --green-deep: #0d3829;
  --gold: #c59643;
  --gold-light: #e5c988;
  --line: rgba(24, 35, 29, 0.16);
  --white: #fffef9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper-light); color: var(--ink); font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif; line-height: 1.8; line-break: strict; -webkit-font-smoothing: antialiased; }
p, li, dd { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }
a { color: inherit; text-decoration: none; }
.container { width: min(1140px, calc(100% - 48px)); margin-inline: auto; }
.compact-container { width: min(900px, calc(100% - 48px)); }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; background: #fff; border: 2px solid var(--green); }
.skip-link:focus { top: 16px; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(251, 248, 241, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; line-height: 1.2; }
.brand-logo { width: 44px; height: 50px; display: block; object-fit: contain; }
.brand b { display: block; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 17px; letter-spacing: .08em; }
.brand small { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; }
nav { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 700; }
nav a { padding-block: 8px; }
nav a:hover, nav a:focus-visible { color: var(--green); }
.nav-contact { padding: 10px 18px !important; border: 1px solid var(--green); border-radius: 999px; }

.hero { position: relative; overflow: hidden; min-height: 680px; display: grid; align-items: center; background: var(--paper); }
.board-pattern { position: absolute; inset: 0 0 0 55%; opacity: .24; background-image: linear-gradient(var(--ink) 1px, transparent 1px), linear-gradient(90deg, var(--ink) 1px, transparent 1px); background-size: 82px 82px; transform: rotate(7deg) scale(1.2); mask-image: linear-gradient(90deg, transparent, #000 25%); }
.hero::after { content: "王"; position: absolute; right: 5%; top: 50%; translate: 0 -50%; color: rgba(22,75,56,.07); font-family: "Yu Mincho", serif; font-size: min(42vw, 520px); font-weight: 700; line-height: 1; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(360px, .75fr); gap: 80px; align-items: center; padding-block: 80px; }
.eyebrow { margin: 0 0 20px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { margin: 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(52px, 7vw, 92px); font-weight: 600; line-height: 1.25; letter-spacing: -.04em; }
.hero h1 em { color: var(--green); font-style: normal; position: relative; }
.hero h1 em::after { content: ""; position: absolute; left: 3%; right: 3%; bottom: 2px; height: 6px; background: var(--gold); opacity: .75; }
.hero-lead { margin: 28px 0 36px; color: var(--ink-soft); font-family: "Yu Mincho", serif; font-size: clamp(17px, 2vw, 21px); line-height: 2; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.button { min-height: 52px; padding: 12px 24px; display: inline-flex; align-items: center; justify-content: center; border-radius: 3px; font-size: 14px; font-weight: 800; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--green); color: #fff; }
.button.primary:hover { background: var(--green-deep); }
.button.secondary { border: 1px solid var(--green); color: var(--green); }

.next-meeting { padding: 34px; background: rgba(255,254,249,.94); border-top: 4px solid var(--green); box-shadow: 0 24px 70px rgba(35,49,41,.13); }
.card-kicker { margin: 0 0 18px; color: var(--gold); font-size: 11px; font-weight: 900; letter-spacing: .2em; }
.date-lockup { display: flex; align-items: baseline; gap: 7px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.date-lockup strong { font-family: Georgia, serif; color: var(--green); font-size: 64px; line-height: 1; }
.date-lockup span { font-size: 13px; font-weight: 700; }
.next-meeting dl { margin: 22px 0; }
.next-meeting dl div { display: grid; grid-template-columns: 66px 1fr; padding: 8px 0; }
.next-meeting dt { color: var(--ink-soft); font-size: 12px; }
.next-meeting dd { margin: 0; font-weight: 700; }
.attention { padding: 3px 9px; background: #f6e5bf; color: #785112; }
.meeting-note { margin: 0; padding: 12px; background: rgba(22,75,56,.07); color: var(--green); text-align: center; font-size: 13px; font-weight: 800; }
.venue-link { text-decoration: underline; text-decoration-color: rgba(22,75,56,.42); text-underline-offset: 4px; }
.venue-link:hover, .venue-link:focus-visible { color: var(--green); text-decoration-color: currentColor; }
.light-link { text-decoration-color: rgba(255,255,255,.5); }
.light-link:hover, .light-link:focus-visible { color: #fff; }

.quick-facts { background: var(--green); color: #fff; }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.facts-grid > div { padding: 24px 30px; border-right: 1px solid rgba(255,255,255,.18); }
.facts-grid > div:first-child { border-left: 1px solid rgba(255,255,255,.18); }
.facts-grid span { display: block; margin-bottom: 4px; color: #bdd5c9; font-size: 11px; }
.facts-grid strong { font-family: "Yu Mincho", serif; font-size: 17px; }

.section { padding: 110px 0; }
.section-heading { margin-bottom: 54px; }
.section-heading h2, .contact-section h2 { margin: 0; font-family: "Yu Mincho", serif; font-size: clamp(36px, 5vw, 58px); font-weight: 600; line-height: 1.45; letter-spacing: -.03em; }
.section-heading > p:last-child { max-width: 680px; margin: 18px 0 0; color: var(--ink-soft); }
.split-heading { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 64px; align-items: end; }
.split-heading > p { margin-bottom: 5px !important; }
.about-tagline-line { display: inline-block; white-space: nowrap; font-size: clamp(34px, 3.3vw, 48px); }
.centered { text-align: center; }
.centered > p:last-child { margin-inline: auto; }

.about { background: var(--white); }
.activity-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.activity-card { min-height: 270px; padding: 32px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.activity-mark { width: 50px; height: 58px; display: grid; place-items: center; margin-bottom: 30px; background: var(--paper); clip-path: polygon(50% 0, 88% 13%, 100% 100%, 0 100%, 12% 13%); font-family: "Yu Mincho", serif; color: var(--green); font-size: 20px; font-weight: 700; }
.activity-card h3 { margin: 0 0 12px; font-family: "Yu Mincho", serif; font-size: 20px; }
.activity-card p { margin: 0; color: var(--ink-soft); font-size: 14px; }

.schedule-section { background: var(--paper); }
.schedule-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.schedule-table-wrap, .rating-table-wrap { overflow-x: auto; background: var(--white); }
table { width: 100%; border-collapse: collapse; }
.schedule-table th, .schedule-table td { padding: 18px 20px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.schedule-table th { background: var(--green); color: #fff; font-size: 12px; letter-spacing: .06em; }
.schedule-table td { font-size: 13px; }
.highlight-row { background: #fff8e9; }
.status { display: inline-block; min-width: 56px; padding: 3px 8px; border-radius: 99px; text-align: center; font-size: 11px; font-weight: 800; }
.status-確定 { background: #dcece4; color: #155239; }
.status-申込済 { background: #e7edf2; color: #3b5569; }
.status-予定 { background: #eeeae0; color: #695f4c; }
.notice-card { padding: 30px; background: var(--green); color: #fff; }
.notice-card time { color: #bcd3c7; font-size: 11px; }
.notice-card h3 { margin: 9px 0 12px; font-family: "Yu Mincho", serif; font-size: 20px; line-height: 1.6; }
.notice-card p:last-child { margin-bottom: 0; color: #d8e6df; font-size: 13px; }

.guide { background: var(--white); }
.steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; }
.steps li { display: grid; grid-template-columns: auto 1fr; gap: 20px; padding: 34px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.steps li:first-child { border-left: 1px solid var(--line); }
.steps span { color: var(--gold); font-family: Georgia, serif; font-size: 13px; font-weight: 700; }
.steps h3 { margin: 0 0 8px; font-family: "Yu Mincho", serif; font-size: 19px; }
.steps p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.welcome-note { margin-top: 34px; padding: 28px 34px; display: flex; gap: 24px; align-items: center; background: var(--paper); }
.welcome-piece { flex: 0 0 auto; width: 52px; height: 60px; display: grid; place-items: center; background: #d8aa59; clip-path: polygon(50% 0, 88% 13%, 100% 100%, 0 100%, 12% 13%); font-family: "Yu Mincho", serif; font-size: 22px; }
.welcome-note h3 { margin: 0 0 4px; font-family: "Yu Mincho", serif; }
.welcome-note p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.rating-section { background: #eee7d9; }
.rating-details, .rules-details { background: var(--white); border: 1px solid var(--line); }
summary { cursor: pointer; padding: 22px 28px; font-weight: 800; list-style-position: inside; }
summary span { float: right; color: var(--ink-soft); font-size: 12px; font-weight: 500; }
.rating-table-wrap { margin: 0 28px 20px; border: 1px solid var(--line); }
.rating-table th, .rating-table td { padding: 10px 15px; border-bottom: 1px solid var(--line); text-align: center; font-size: 13px; }
.rating-table th { background: var(--green); color: #fff; font-size: 11px; }
.plus { color: #a34a24; font-weight: 800; }
.minus { color: #315f85; }
.rating-highlight { margin: 0 28px 28px; padding: 12px; background: #fff4d9; text-align: center; color: #7a5515; font-weight: 800; font-size: 13px; }

.rules-section { background: var(--white); }
.rules-body { padding: 10px 34px 34px; border-top: 1px solid var(--line); }
.rules-body article { padding: 20px 0; border-bottom: 1px solid var(--line); }
.rules-body h3 { margin: 0 0 8px; font-family: "Yu Mincho", serif; font-size: 18px; }
.rules-body p, .rules-body li { color: var(--ink-soft); font-size: 14px; }
.rules-body p { margin: 6px 0; }
.appendix { margin-top: 24px !important; color: var(--ink) !important; font-weight: 700; }

.contact-section { padding: 100px 0; background: var(--green-deep); color: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.light { color: var(--gold-light); }
.contact-grid > div:first-child > p:last-child { color: #c4d5cc; }
.contact-card { padding: 36px; background: #fff; color: var(--ink); border-top: 4px solid var(--gold); }
.contact-label { margin: 0 0 4px; color: var(--ink-soft); font-size: 11px; }
.contact-card h3 { margin: 0 0 20px; font-family: "Yu Mincho", serif; font-size: 26px; }
.contact-link { display: flex; align-items: baseline; gap: 18px; padding: 13px 0; border-top: 1px solid var(--line); font-family: Georgia, serif; font-size: 22px; font-weight: 700; }
.contact-link span { width: 44px; color: var(--green); font-family: sans-serif; font-size: 10px; }
.contact-link.email { font-size: 17px; }
.contact-link:hover { color: var(--green); }
.contact-note { margin: 20px 0 0; color: var(--ink-soft); font-size: 11px; }

footer { padding: 36px 0; background: #091f17; color: #fff; }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; gap: 40px; align-items: center; }
.footer-brand .brand-logo { width: 34px; height: 39px; }
.footer-brand small { color: #90a79b; }
.footer-links { display: flex; gap: 22px; font-size: 12px; }
.footer-inner > small { color: #90a79b; font-size: 10px; }

@media (max-width: 900px) {
  nav a:not(.nav-contact) { display: none; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 50px; }
  .next-meeting { max-width: 520px; }
  .facts-grid { grid-template-columns: 1fr 1fr; }
  .facts-grid > div { border-bottom: 1px solid rgba(255,255,255,.18); }
  .activity-grid { grid-template-columns: 1fr 1fr; }
  .split-heading, .schedule-layout, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: 1fr; }
  .steps li, .steps li:first-child { border: 1px solid var(--line); border-bottom: 0; }
  .steps li:last-child { border-bottom: 1px solid var(--line); }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .container, .compact-container { width: min(100% - 30px, 1140px); }
  .header-inner { min-height: 66px; }
  .brand-logo { width: 36px; height: 42px; }
  .brand b { font-size: 14px; }
  .brand small { display: none; }
  .nav-contact { padding: 8px 12px !important; font-size: 11px; }
  .hero-grid { padding-block: 56px; }
  .hero h1 { font-size: 48px; }
  .hero-lead br { display: none; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .next-meeting { padding: 26px 22px; }
  .date-lockup strong { font-size: 52px; }
  .facts-grid { grid-template-columns: 1fr; }
  .facts-grid > div { padding: 17px 22px; border-left: 1px solid rgba(255,255,255,.18); }
  .section { padding: 76px 0; }
  .section-heading { margin-bottom: 36px; }
  .about-tagline-line { font-size: clamp(26px, 7.5vw, 32px); }
  .activity-grid { grid-template-columns: 1fr; }
  .activity-card { min-height: auto; }
  .schedule-table th, .schedule-table td { padding: 14px 12px; }
  .welcome-note { align-items: flex-start; padding: 22px; }
  summary { padding: 18px; }
  summary span { float: none; display: block; margin-left: 22px; }
  .rating-table-wrap { margin-inline: 12px; }
  .rules-body { padding-inline: 20px; }
  .contact-section { padding: 76px 0; }
  .contact-card { padding: 26px 20px; }
  .contact-link { font-size: 19px; }
  .contact-link.email { font-size: 13px; word-break: break-all; }
  .footer-links { flex-wrap: wrap; }
}

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