/* Paper's dark brand is shared. CJK body fonts follow the document language. */
html:lang(ja) { font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', Meiryo, sans-serif; }
html:lang(zh) { font-family: 'PingFang TC', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif; }
html:lang(en) { font-family: Seed, system-ui, sans-serif; }
html:lang(ja) h1, html:lang(zh) h1 { font-size: clamp(30px, 3vw, 45px); letter-spacing: -.045em; }
html:lang(en) .hero h1 { font-size: clamp(31px, 3.2vw, 48px); letter-spacing: -.045em; }
html:lang(en) h2 { font-size: 32px; }
.header { height: 80px; gap: 24px; }
.main-nav { margin-left: auto; }
.language-picker { position: relative; flex-shrink: 0; border: 0; }
.language-picker summary { padding: 12px 22px 12px 10px; font-size: 13px; }
.language-picker summary::after { content: '⌄'; top: 9px; right: 2px; font-size: 16px; }
.language-picker[open] summary::after { content: '⌃'; }
.language-picker nav { position: absolute; z-index: 1; top: 100%; right: 0; width: 156px; padding: 8px; display: grid; gap: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.language-picker nav a { padding: 12px; border-radius: 4px; font-size: 14px; }
.language-picker [aria-current] { color: var(--accent); background: var(--bg); }
.footer { display: grid; grid-template-columns: 1fr 1fr 1.2fr; align-items: start; gap: 40px; }
.footer p { margin: 10px 0; line-height: 1.65; }
.company { font-size: 14px; line-height: 1.8; }
.company strong { font-size: 16px; }
.company p[lang=ko] { margin-top: 0; }
.company a { text-decoration: underline; text-underline-offset: 4px; }
.policy-links { display: grid; gap: 0; font-size: 13px; }
.policy-links a { padding: 6px 0; line-height: 1.6; }
.document { padding-block: 60px 90px; }
.document-heading { max-width: 800px; }
.document-heading h1 { font-size: 36px; line-height: 1.5; letter-spacing: -.025em; margin: 0 0 18px; overflow-wrap: anywhere; }
.document-heading>p { color: var(--muted); line-height: 1.9; font-size: 17px; }
.draft-notice { padding: 20px 24px; margin-block: 28px 44px; border-left: 3px solid var(--accent); background: var(--surface); }
.draft-notice strong { color: var(--accent); }
.draft-notice p { color: var(--muted); line-height: 1.8; margin: 10px 0 0; max-width: 78ch; }
.document-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 64px; margin-top: 40px; }
.toc { display: flex; flex-direction: column; gap: 0; align-self: start; font-size: 13px; }
.toc a { padding: 9px 0; line-height: 1.6; color: var(--muted); }
.toc a:hover { color: var(--accent); }
.document-body { max-width: 760px; overflow-wrap: anywhere; }
.document-body section { margin-bottom: 44px; scroll-margin-top: 24px; }
.document-body h2 { font-size: 22px; line-height: 1.6; letter-spacing: -.02em; margin-bottom: 15px; }
.document-body p { font-size: 16px; line-height: 1.95; color: var(--muted); margin: 12px 0; }
.document-contact a { color: var(--accent); text-decoration: underline; }
@media(max-width:1024px) { .main-nav { gap: 18px; font-size: 12px; } .document-layout { grid-template-columns: 180px minmax(0,1fr); gap: 32px; } }
@media(max-width:767px) {
  .header { height: auto; gap: 10px; }
  .main-nav { order: 3; width: 100%; }
  .language-picker { margin-left: auto; }
  .language-picker nav { width: 150px; }
  .footer { grid-template-columns: 1fr; gap: 24px; }
  .footer p { width: auto; }
  .policy-links { width: 100%; grid-template-columns: 1fr 1fr; column-gap: 20px; }
  .document { padding-block: 36px 50px; }
  .document-heading h1, html:lang(en) .document-heading h1 { font-size: 28px; }
  .document-heading>p { font-size: 16px; }
  .draft-notice { padding: 16px 18px; margin-block: 24px; font-size: 14px; }
  .document-layout { grid-template-columns: 1fr; gap: 28px; }
  .toc { border-block: 1px solid var(--line); padding-block: 12px; }
  .document-body h2, html:lang(en) .document-body h2 { font-size: 21px; }
  .document-body p { font-size: 15px; }
  html:lang(en) h2 { font-size: 27px; }
}
:root .launch-notice{color:var(--muted);font-size:14px;line-height:1.8;border-bottom:1px solid var(--line);padding-block:16px}