:root{
  --bg:#fff9f2;
  --surface:#ffffff;
  --text:#49362c;
  --muted:#735f54;
  --line:#eadfd3;
  --orange:#b85e2f;
  --orange-soft:#fce8da;
  --blue:#3f7894;
  --blue-soft:#e4f2f7;
  --cta:#f8d1ad;
  --green:#6f8f63;
  --shadow:0 12px 36px rgba(73,54,44,.08);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.8;
}
a{color:inherit}
.container{width:min(1080px,calc(100% - 32px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,249,242,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(234,223,211,.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{font-weight:800;text-decoration:none;font-size:1.05rem;white-space:nowrap}
.nav{display:flex;align-items:center;gap:20px;font-size:.92rem}
.nav a{text-decoration:none}
.nav .nav-cta{background:var(--text);color:#fff;padding:10px 16px;border-radius:999px;font-weight:700}
.hero{padding:82px 0 66px}
.hero-inner{max-width:850px}
.eyebrow{display:inline-block;margin:0 0 14px;font-size:.9rem;font-weight:700;letter-spacing:.04em;color:var(--orange)}
h1{font-size:clamp(2.6rem,8vw,5.4rem);line-height:1.08;letter-spacing:-.035em;margin:0 0 28px}
.lead{font-size:clamp(1.2rem,3vw,1.75rem);line-height:1.65;font-weight:700;margin:0 0 24px}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 30px}
.badge{display:inline-flex;padding:9px 15px;border-radius:999px;font-weight:700;background:#fff;border:1px solid var(--line)}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;border-radius:999px;text-decoration:none;font-weight:800;border:1px solid var(--text)}
.button.primary{background:var(--text);color:#fff}
.button.secondary{background:transparent}
.button.soft{background:var(--cta);border-color:transparent}
section{padding:72px 0;border-top:1px solid var(--line)}
h2{font-size:clamp(1.7rem,4vw,2.45rem);line-height:1.3;margin:0 0 24px}
h3{font-size:1.25rem;line-height:1.45;margin:0 0 12px}
p{margin:0 0 16px}
.section-intro{max-width:760px;font-size:1.06rem}
.fact{font-weight:800}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.card.dev{background:var(--orange-soft);border-color:#f3cfb8}
.card.dep{background:var(--blue-soft);border-color:#c8e3ee}
.card .label{font-size:.82rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px;opacity:.75}
.dev h3{color:var(--orange)}
.dep h3{color:var(--blue)}
.topic-box{margin-top:24px;padding:24px 26px;background:#fff;border-left:5px solid var(--orange);border-radius:0 18px 18px 0}
.text-link{font-weight:800;text-decoration-thickness:2px;text-underline-offset:4px}
.first-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px}
.first-item{padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px}
.rules{padding-left:1.2rem}
.rules li{margin:.45rem 0}
.pro-card{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.pro-actions{display:flex;flex-direction:column;gap:10px}
details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px;margin:10px 0}
summary{cursor:pointer;font-weight:800;padding:17px 0}
details p{padding-bottom:16px;color:var(--muted)}
.callout{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.site-footer{padding:46px 0 60px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
.footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
.footer-links{display:flex;flex-wrap:wrap;gap:12px 18px}
.footer-links a{text-decoration:none}
.page-hero{padding:66px 0 46px}
.page-hero h1{font-size:clamp(2.2rem,6vw,4rem)}
.breadcrumbs{font-size:.9rem;color:var(--muted);margin-bottom:16px}
.record-list{display:grid;gap:24px}
.record{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.record-meta{font-size:.9rem;color:var(--muted);margin-bottom:8px}
.photo-placeholder{aspect-ratio:16/10;display:grid;place-items:center;text-align:center;padding:24px;border:2px dashed #ccbcae;border-radius:18px;background:#fffaf6;color:var(--muted);margin-top:20px}
.note{font-size:.92rem;color:var(--muted)}
.kicker{font-size:.9rem;font-weight:800;color:var(--green);letter-spacing:.04em}
.check-list{list-style:none;padding:0;margin:22px 0}
.check-list li{position:relative;padding-left:30px;margin:10px 0}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;font-weight:900;color:var(--green)}
@media(max-width:800px){
  .nav a:not(.nav-cta){display:none}
  .hero{padding-top:58px}
  .cards,.first-grid,.pro-card{grid-template-columns:1fr}
  .footer-grid{flex-direction:column}
  section{padding:56px 0}
}
@media(max-width:480px){
  .container{width:min(100% - 24px,1080px)}
  .header-inner{min-height:64px}
  .nav .nav-cta{padding:9px 12px;font-size:.86rem}
  .card,.pro-card,.callout,.record{padding:22px}
}


.page-lead{font-size:1.2rem}
.top-gap{margin-top:18px}
.footer-copy{margin-top:24px}
.activities-section{padding-top:24px}
.record{overflow:hidden}
.record.dev{border-top:5px solid var(--orange)}
.record.dep{border-top:5px solid var(--blue)}
.record h2{font-size:clamp(1.35rem,3vw,1.7rem);margin-bottom:18px}
.record-photo{margin:0}
.record-photo a{display:block;border-radius:16px;overflow:hidden;background:#f5eee7;border:1px solid var(--line)}
.record-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;transition:transform .18s ease}
.record-photo a:hover img{transform:scale(1.01)}
.record-photo figcaption{font-size:.88rem;color:var(--muted);margin-top:9px}
.flyer-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,320px);gap:36px;align-items:center}
.flyer-copy{max-width:700px}
.flyer-preview{display:block;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.flyer-preview img{display:block;width:100%;height:auto}
@media(max-width:800px){
  .flyer-section{grid-template-columns:1fr}
  .flyer-preview{max-width:320px}
}

/* 2026-09-12 visual refresh: flyer-aligned hero and clearer interactive elements */
:root{
  --yellow:#f2cf72;
  --yellow-soft:#fff1bd;
  --cream:#fffaf4;
  --button-shadow:0 4px 0 rgba(73,54,44,.18);
}
.hero{
  padding:58px 0 64px;
  background:
    radial-gradient(circle at 86% 16%, rgba(242,207,114,.25), transparent 28%),
    linear-gradient(180deg,#fffaf4 0%,#fff9f2 100%);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,.93fr) minmax(360px,1.07fr);
  gap:48px;
  align-items:center;
}
.hero-copy{max-width:650px}
.hero-visual{min-width:0}
.hero-image-frame{
  position:relative;
  padding:10px;
  border-radius:30px;
  background:linear-gradient(135deg,#ffe39a,#f2cf72);
  box-shadow:0 18px 46px rgba(73,54,44,.13);
}
.hero-image-frame:after{
  content:"";
  position:absolute;
  right:-7px;
  bottom:-9px;
  width:34px;
  height:34px;
  background:var(--yellow);
  clip-path:polygon(50% 0,60% 40%,100% 50%,60% 60%,50% 100%,40% 60%,0 50%,40% 40%);
}
.hero-image-frame img{
  display:block;
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:21px;
}
.eyebrow{
  color:var(--orange);
  background:var(--orange-soft);
  padding:5px 11px;
  border-radius:8px;
}
.badges{gap:8px;margin:24px 0 28px}
.badge{
  padding:7px 12px;
  border:0;
  border-radius:9px;
  background:var(--yellow-soft);
  font-size:.93rem;
  box-shadow:inset 0 0 0 1px rgba(137,106,42,.08);
}
.actions{gap:14px;align-items:stretch}
.button{
  gap:10px;
  min-height:54px;
  padding:12px 22px;
  border-radius:14px;
  border-width:2px;
  box-shadow:var(--button-shadow);
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
}
.button:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 0 rgba(73,54,44,.16);
}
.button:active{
  transform:translateY(1px);
  box-shadow:0 2px 0 rgba(73,54,44,.16);
}
.button.primary{background:var(--text);color:#fff;border-color:var(--text)}
.button.secondary{background:#fff;border-color:var(--text)}
.button.soft{background:var(--yellow);border-color:var(--text);color:var(--text)}
.nav .nav-cta{
  border:2px solid var(--text);
  border-radius:12px;
  box-shadow:0 3px 0 rgba(73,54,44,.14);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:#6f3c24;
}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-copy{max-width:760px}
  .hero-visual{max-width:720px}
}
@media(max-width:600px){
  .hero{padding:38px 0 48px}
  .hero-grid{gap:26px}
  .hero-image-frame{padding:7px;border-radius:22px}
  .hero-image-frame img{border-radius:16px}
  .actions{display:grid;grid-template-columns:1fr}
  .button{width:100%;min-height:56px}
  .badges{margin:20px 0 24px}
  .badge{font-size:.88rem;padding:6px 10px}
}


/* 2026-09-12 v4: make clickable CTAs unmistakable; flatten non-clickable UI */
.badges{
  gap:10px 22px;
  margin:22px 0 30px;
}
.badge{
  position:relative;
  padding:0 0 0 24px;
  border:0;
  border-radius:0;
  background:transparent;
  box-shadow:none;
  font-size:.95rem;
  font-weight:800;
  color:var(--text);
}
.badge::before{
  content:"✓";
  position:absolute;
  left:0;
  top:.04em;
  color:var(--orange);
  font-weight:900;
}

/* Information containers are deliberately flat, not button-shaped. */
.card,
.pro-card,
.callout,
.first-item{
  box-shadow:none;
}
.card{
  border-radius:8px;
  border:1px solid var(--line);
  border-left-width:6px;
  padding:28px 30px;
}
.card.dev{border-left-color:var(--orange)}
.card.dep{border-left-color:var(--blue)}
.first-grid{
  gap:24px 38px;
}
.first-item{
  position:relative;
  padding:0 0 0 28px;
  background:transparent;
  border:0;
  border-radius:0;
}
.first-item::before{
  content:"●";
  position:absolute;
  left:0;
  top:.08rem;
  color:var(--yellow);
  font-size:.95rem;
}
.pro-card{
  border-radius:8px;
  border-left:6px solid var(--green);
}
.callout{
  border-radius:8px;
  border-left:6px solid var(--yellow);
}
details{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
  padding:0;
  margin:0;
}
summary{
  position:relative;
  padding:18px 34px 18px 0;
}
summary::after{
  content:"＋";
  position:absolute;
  right:0;
  top:17px;
  color:var(--orange);
  font-weight:900;
}
details[open] summary::after{content:"−"}

/* All real CTAs share a strong, consistent affordance. */
.button,
.nav .nav-cta{
  cursor:pointer;
  text-decoration:none;
  font-weight:900;
  letter-spacing:.01em;
}
.button{
  min-height:54px;
  border-radius:12px;
  border:2px solid var(--text);
  box-shadow:0 5px 0 rgba(73,54,44,.24);
  transition:transform .14s ease, box-shadow .14s ease, filter .14s ease;
}
.button:hover{
  transform:translateY(-2px);
  box-shadow:0 7px 0 rgba(73,54,44,.20);
  filter:brightness(1.02);
}
.button:active{
  transform:translateY(2px);
  box-shadow:0 2px 0 rgba(73,54,44,.22);
}
.button:focus-visible,
.nav .nav-cta:focus-visible,
.text-link:focus-visible{
  outline:3px solid #f2cf72;
  outline-offset:4px;
}
.button.primary{
  background:var(--text);
  color:#fff;
  border-color:var(--text);
}
.button.secondary,
.button.soft{
  background:var(--yellow);
  color:var(--text);
  border-color:var(--text);
}
.nav .nav-cta{
  background:var(--text);
  color:#fff;
  border:2px solid var(--text);
  border-radius:10px;
  box-shadow:0 3px 0 rgba(73,54,44,.18);
}
.text-link{
  display:inline;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  color:#6f3c24;
  text-decoration:underline;
  text-decoration-thickness:2px;
  text-underline-offset:5px;
}

@media(max-width:600px){
  .badges{gap:8px 18px}
  .badge{font-size:.9rem}
  .card{padding:24px 22px}
  .first-grid{gap:20px}
}


/* 2026-09-12 v7: mobile hero image — preserve the full landscape image instead of a tall crop */
@media(max-width:600px){
  .hero-visual{width:100%;max-width:none}
  .hero-image-frame{width:100%;height:auto}
  .hero-image-frame img{
    display:block;
    width:100%;
    height:auto !important;
    aspect-ratio:auto !important;
    object-fit:contain !important;
    object-position:center !important;
  }
}


/* 2026-09-12 v8: activity-board photos should show the whole board, not crop its edges */
.record-photo img{
  width:100%;
  height:auto !important;
  aspect-ratio:auto !important;
  object-fit:contain !important;
}