:root {
  --bg: #fbf7e9;
  --bg-soft: #fdfaf0;
  --card: #ffffff;
  --ink: #4a3f30;
  --ink-soft: #8a7c68;
  --ink-faint: #a99d88;
  --gold: #e0a93b;
  --gold-soft: #f5d98a;
  --line: #f0e7d2;
  --pink: #f6c9c4;
  --pink-bg: #fdeeec;
  --green: #b8d8a0;
  --green-bg: #eef6e6;
  --blue: #bcd6ea;
  --blue-bg: #eaf2f8;
  --gold-bg: #fbf0d6;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
.page { max-width: 820px; margin: 0 auto; padding: 0 18px 40px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  margin: 18px 0 26px;
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(160deg, #fdfaef 0%, #fbf3d8 55%, #f7ecc6 100%);
  min-height: 230px;
  display: flex;
  align-items: center;
}
.hero-inner { padding: 40px 38px; max-width: 60%; position: relative; z-index: 2; }
.hero h1 {
  font-size: 40px;
  font-weight: 800;
  margin: 0 0 14px;
  color: #5b4e3a;
  letter-spacing: 1px;
}
.hero p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.8; }
.hero-art {
  position: absolute;
  right: 26px;
  bottom: 0;
  width: 200px;
  z-index: 1;
}
.hero-art img { width: 100%; display: block; }
.hero-ground {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 56px;
  background: linear-gradient(180deg, rgba(184, 216, 160, 0) 0%, #cfe6b4 100%);
  opacity: 0.7;
}
.petal { position: absolute; font-size: 16px; opacity: 0.8; z-index: 1; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px 30px;
  margin-bottom: 22px;
  box-shadow: 0 10px 30px rgba(155, 130, 70, 0.06);
}
.card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.card-head .ic {
  width: 38px; height: 38px;
  flex: 0 0 38px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--green-bg);
}
.card-head h2 { font-size: 21px; font-weight: 800; margin: 0; color: #5b4e3a; }
.lead { color: var(--ink-soft); font-size: 14.5px; margin: 0 0 22px; }

/* ---------- Values grid ---------- */
.values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 28px;
}
.value { display: flex; gap: 14px; align-items: flex-start; }
.value .badge {
  width: 46px; height: 46px; flex: 0 0 46px;
  border-radius: 14px;
  display: grid; place-items: center;
}
.value h3 { font-size: 15.5px; font-weight: 700; margin: 2px 0 4px; color: #5b4e3a; }
.value p { font-size: 13.5px; color: var(--ink-soft); margin: 0; line-height: 1.7; }
.b-pink { background: var(--pink-bg); }
.b-gold { background: var(--gold-bg); }
.b-green { background: var(--green-bg); }
.b-blue { background: var(--blue-bg); }

/* ---------- Document / accordion ---------- */
.doc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.doc-head .title { display: flex; align-items: center; gap: 12px; }
.doc-head h2 { font-size: 21px; font-weight: 800; margin: 0; color: #5b4e3a; }
.doc-head .updated { color: var(--ink-faint); font-size: 12.5px; white-space: nowrap; }

details.sec {
  border-radius: 14px;
  background: var(--bg-soft);
  margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}
details.sec[open] { background: #fffdf7; border-color: var(--line); }
summary.sec-h {
  list-style: none;
  cursor: pointer;
  padding: 15px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 15px;
  color: #5b4e3a;
  user-select: none;
}
summary.sec-h::-webkit-details-marker { display: none; }
summary.sec-h .num {
  color: var(--gold);
  font-weight: 800;
  min-width: 20px;
}
summary.sec-h .chev {
  margin-left: auto;
  transition: transform 0.22s ease;
  color: var(--ink-faint);
  flex: 0 0 auto;
}
details.sec[open] summary.sec-h .chev { transform: rotate(180deg); }
.sec-body { padding: 2px 20px 18px 50px; }
.sec-body p { font-size: 14.5px; margin: 0 0 10px; }
.sec-body ul { padding-left: 20px; margin: 8px 0; }
.sec-body li { font-size: 14.5px; margin: 5px 0; color: var(--ink); }
.sec-body a { color: var(--gold); }

/* ---------- Closing card ---------- */
.closing {
  background: linear-gradient(160deg, #fdf6df 0%, #fbeec9 100%);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px 30px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.closing img { width: 96px; flex: 0 0 96px; }
.closing h3 { font-size: 18px; font-weight: 800; margin: 0 0 8px; color: #5b4e3a; }
.closing p { font-size: 13.5px; color: var(--ink-soft); margin: 0; line-height: 1.8; }

/* ---------- Contact form ---------- */
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #5b4e3a;
  margin-bottom: 7px;
}
.field label .req { color: var(--gold); margin-left: 4px; }
.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--gold-soft);
  background: #fffdf7;
}
.btn-submit {
  width: 100%;
  font: inherit;
  font-size: 16px;
  font-weight: 800;
  color: #5b4e3a;
  background: var(--gold-soft);
  border: 0;
  border-radius: 16px;
  padding: 15px;
  cursor: pointer;
  transition: filter 0.15s;
}
.btn-submit:hover { filter: brightness(0.97); }
.btn-submit:disabled { opacity: 0.6; cursor: default; }
.form-note { font-size: 13px; color: var(--ink-soft); margin-top: 14px; }
.form-ok {
  text-align: center;
  padding: 26px 8px;
}
.form-ok .big { font-size: 19px; font-weight: 800; color: #5b4e3a; margin-bottom: 8px; }
.form-ok p { color: var(--ink-soft); font-size: 14px; margin: 0; }
.hidden { display: none; }

/* ---------- Footer ---------- */
footer.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 22px 8px 10px;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 13px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; color: var(--gold); }
.brand img { width: 24px; }
.foot-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-nav a { color: var(--ink-soft); text-decoration: none; }
.foot-nav a:hover { color: var(--gold); }
.foot-nav a.lang2 { color: var(--ink-faint); }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .hero-inner { max-width: 100%; padding: 30px 24px 70px; }
  .hero h1 { font-size: 32px; }
  .hero-art { width: 130px; right: 12px; opacity: 0.95; }
  .values { grid-template-columns: 1fr; gap: 18px; }
  .card { padding: 24px 20px; }
  .sec-body { padding-left: 20px; }
  .closing { flex-direction: column; text-align: center; }
}