.subpage-hero {
  padding: 58px 0 66px;
  background:
    radial-gradient(circle at 15% 20%, rgba(220, 196, 100, .18), transparent 30%),
    linear-gradient(125deg, #fbfaf5 0%, #f2ecdb 56%, #faf7ee 100%);
  border-bottom: 1px solid rgba(158, 126, 34, .16);
  text-align: center;
}
.subpage-hero__breadcrumb { margin-bottom: 24px; display: flex; gap: 10px; color: #81786c; font-size: .76rem; text-align: left; }
.subpage-hero__breadcrumb a:hover { text-decoration: underline; }
.subpage-hero__en { display: block; color: #9b7c25; font-family: var(--font-en); font-size: .9rem; letter-spacing: .2em; }
.subpage-hero h1 { position: relative; margin: 4px 0 0; padding-bottom: 20px; font-size: clamp(1.9rem, 4vw, 2.6rem); font-weight: 500; letter-spacing: .08em; }
.subpage-hero h1::after { position: absolute; bottom: 0; left: 50%; width: 120px; height: 3px; content: ""; background: linear-gradient(90deg, #d8c565, #9f7e22, #e4d784); transform: translateX(-50%); }

.document-section { padding: 82px 0 104px; }
.document-card { max-width: 900px; margin-inline: auto; border: 1px solid #ded6c4; padding: clamp(32px, 6vw, 68px); background: #fff; box-shadow: 0 18px 50px rgba(63,48,14,.06); }
.document-intro { margin: 0 0 44px; color: var(--color-subtle); line-height: 2; }
.policy-list { counter-reset: policy; display: grid; gap: 36px; }
.policy-item { position: relative; padding-top: 24px; border-top: 1px solid #e2dbc9; }
.policy-item:first-child { border-top: 0; padding-top: 0; }
.policy-item h2 { margin: 0 0 13px; font-size: 1.16rem; font-weight: 500; letter-spacing: .04em; }
.policy-item p { margin: 0; color: var(--color-subtle); font-size: .91rem; line-height: 1.95; }
.policy-item p + p { margin-top: 11px; }
.policy-item ul { margin: 9px 0 0; padding-left: 1.4em; color: var(--color-subtle); font-size: .91rem; line-height: 1.95; }
.policy-item a { color: #80651d; text-decoration: underline; text-underline-offset: 3px; }
.policy-date { margin: 44px 0 0; padding-top: 22px; border-top: 1px solid #e2dbc9; text-align: right; color: #716a60; font-size: .8rem; }

.sitemap-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.sitemap-card { border: 1px solid #ded6c4; background: #fff; box-shadow: 0 12px 32px rgba(63,48,14,.05); }
.sitemap-card > a { position: relative; padding: 24px 58px 24px 26px; display: block; font-size: 1.02rem; letter-spacing: .04em; transition: background .2s ease, color .2s ease; }
.sitemap-card > a::after { position: absolute; top: 50%; right: 26px; content: "›"; color: #9b7c25; font-family: sans-serif; font-size: 1.5rem; transform: translateY(-50%); }
.sitemap-card > a:hover { background: #f8f4e7; color: #80651d; }
.sitemap-card ul { margin: 0; padding: 0 26px 22px; list-style: none; }
.sitemap-card li { border-top: 1px solid #eee8d9; }
.sitemap-card li a { padding: 10px 0; display: block; color: var(--color-subtle); font-size: .83rem; }
.sitemap-card li a:hover { color: #80651d; text-decoration: underline; }

.message-section { min-height: calc(100vh - var(--header-height) - 260px); padding: 92px 0 110px; display: grid; place-items: center; background: #fbfaf6; }
.message-card { width: min(calc(100% - 32px), 720px); border: 1px solid #ded6c4; padding: clamp(42px, 7vw, 72px); background: #fff; text-align: center; box-shadow: 0 18px 50px rgba(63,48,14,.07); }
.message-card__mark { width: 68px; height: 68px; margin: 0 auto 24px; border: 1px solid #b7973b; border-radius: 50%; display: grid; place-items: center; color: #9b7c25; font-family: sans-serif; font-size: 2rem; }
.message-card--error .message-card__mark { color: #875f33; border-color: #b89877; }
.message-card__en { color: #9b7c25; font-family: var(--font-en); font-size: .78rem; letter-spacing: .2em; }
.message-card h1 { margin: 5px 0 18px; font-size: clamp(1.55rem, 3vw, 2rem); font-weight: 500; letter-spacing: .05em; }
.message-card p { margin: 0; color: var(--color-subtle); font-size: .91rem; line-height: 2; }
.message-actions { margin-top: 34px; display: flex; justify-content: center; gap: 12px; }
.message-button { min-width: 220px; min-height: 54px; padding: 12px 22px; display: inline-grid; place-items: center; border: 1px solid #9f7d25; background: linear-gradient(110deg, #aa8528, #b99a40 52%, #ac882b); color: #fff; font-size: .88rem; letter-spacing: .06em; }
.message-button--secondary { background: #fff; color: #755f24; }

@media (max-width: 720px) {
  .subpage-hero { padding: 40px 0 50px; }
  .document-section { padding: 58px 0 72px; }
  .document-card { padding: 32px 22px; }
  .document-intro { margin-bottom: 34px; }
  .policy-list { gap: 30px; }
  .sitemap-grid { grid-template-columns: 1fr; }
  .message-section { padding: 64px 0 78px; }
  .message-actions { flex-direction: column; align-items: stretch; }
  .message-button { width: 100%; min-width: 0; }
}