/* XunNi landing (03 s10) - tokens from docs/design-system/tokens/{color,typography,shape}.json v1.1, light theme only (B3a brief).
   paper #F6F1E7 surface #FFFDF8 ink #1E1B18 ink-2 #5A534B ink-3 #6F675D vermilion #C23B22 vermilion-text #A8321D line #E4DCCD
   on-vermilion #FFFFFF motif-faded rgba(30,27,24,0.25). No shadows, no gradients: paper vs surface + 1px hairline. One vermilion button per page. */
:root {
  --paper: #F6F1E7;
  --surface: #FFFDF8;
  --ink: #1E1B18;
  --ink-2: #5A534B;
  --ink-3: #6F675D;
  --verm: #C23B22;
  --verm-text: #A8321D;
  --line: #E4DCCD;
  --on-verm: #FFFFFF;
  --faded: rgba(30, 27, 24, 0.25);
  --font-ui: -apple-system, 'PingFang TC', 'Hiragino Sans', 'Noto Sans CJK TC', 'Noto Sans JP', system-ui, sans-serif;
  --font-brand: 'Noto Serif TC', 'Noto Serif JP', serif;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --tap: 44px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-ui); font-size: 16px; line-height: 24px; -webkit-text-size-adjust: 100%; }
a { color: var(--verm-text); text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.page { max-width: 1120px; margin: 0 auto; padding: 16px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: var(--tap); flex-wrap: wrap; }
.wordmark { display: inline-flex; align-items: center; min-height: var(--tap); min-width: var(--tap); font-family: var(--font-brand); font-weight: 600; font-size: 20px; line-height: 28px; color: var(--ink); text-decoration: none; }
.lang-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.lang-link, .lang-current { display: inline-flex; align-items: center; min-height: var(--tap); padding: 0 12px; border-radius: 999px; font-size: 13px; line-height: 18px; text-decoration: none; }
.lang-link { color: var(--ink-2); border: 1px solid var(--line); }
.lang-current { color: var(--ink); border: 1px solid var(--ink); }
.main { display: grid; gap: 24px; padding: 24px 0 32px; }
@media (min-width: 960px) { .main { grid-template-columns: 1.1fr 1fr; align-items: start; padding-top: 48px; } }
.hero { display: grid; gap: 12px; }
.eyebrow { margin: 0; font-size: 13px; line-height: 18px; color: var(--ink-3); letter-spacing: 0.02em; }
.display { margin: 0; font-family: var(--font-brand); font-weight: 600; font-size: 30px; line-height: 36px; }
@media (min-width: 960px) { .display { font-size: 40px; line-height: 48px; } }
.subhead { margin: 0; font-size: 20px; line-height: 28px; font-weight: 600; color: var(--ink); }
.points { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 12px; }
.points li { display: flex; gap: 12px; align-items: flex-start; }
.ico { width: 24px; height: 24px; flex: 0 0 24px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; color: var(--ink-2); }
.ico-inline { width: 20px; height: 20px; flex: 0 0 20px; vertical-align: -4px; margin-right: 6px; }
.caption { font-size: 13px; line-height: 18px; margin: 0; }
/* standalone text links (not inside a sentence): 44px tap area (08 s8) */
.caption > a, .hero .caption a { display: inline-flex; align-items: center; justify-content: center; min-height: var(--tap); min-width: var(--tap); padding: 0 8px; margin: 0 -8px; }
.ink-3 { color: var(--ink-3); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px 16px; display: grid; gap: 16px; }
@media (min-width: 600px) { .card { padding: 32px 24px; } }
.cta { align-content: start; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: var(--tap); padding: 12px 24px; border-radius: 999px; font-family: var(--font-ui); font-size: 16px; line-height: 20px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; width: 100%; white-space: nowrap; }
.btn-primary { background: var(--verm); color: var(--on-verm); border-color: var(--verm); }
.btn[disabled] { background: var(--line); border-color: var(--line); color: var(--ink-3); cursor: not-allowed; }
.motif { width: 120px; height: 24px; }
.motif line { stroke: var(--line); stroke-width: 2; }
.motif-2 line { stroke: var(--verm); }
.motif .dot { fill: var(--faded); }
.motif-1 .dot-a, .motif-2 .dot { fill: var(--verm); }
form { display: grid; gap: 16px; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend, label { font-weight: 600; padding: 0; margin: 0 0 8px; display: block; }
.field { display: grid; gap: 4px; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choice { display: inline-flex; align-items: center; gap: 8px; min-height: var(--tap); padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; font-weight: 400; margin: 0; cursor: pointer; }
.choice input { margin: 0; width: 20px; height: 20px; accent-color: var(--ink); }
.choice:has(input:checked) { border-color: var(--ink); }
select, input[type="email"] { width: 100%; min-height: var(--tap); padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); font: inherit; }
.check { display: flex; gap: 12px; align-items: flex-start; font-weight: 400; min-height: var(--tap); cursor: pointer; }
.check input { margin: 2px 0 0; width: 20px; height: 20px; flex: 0 0 20px; accent-color: var(--ink); }
.field-error, .form-summary, .legal-pending { display: flex; align-items: flex-start; gap: 0; margin: 0; color: var(--ink); font-size: 13px; line-height: 18px; }
.form-summary, .legal-pending { font-size: 16px; line-height: 24px; padding: 12px; border: 1px solid var(--ink); border-radius: var(--r-md); }
.has-error legend, .has-error > label { text-decoration: underline; text-decoration-style: dotted; text-underline-offset: 4px; }
.has-error select, .has-error input[type="email"] { border-color: var(--ink); }
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.success .title, .title { margin: 0; font-size: 20px; line-height: 28px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.success p, .confirm p, .page-main p { margin: 0; }
.page-main { grid-template-columns: 1fr; max-width: 720px; }
.page-main article p { white-space: pre-line; }
.confirm { text-align: left; }
.footer { border-top: 1px solid var(--line); padding: 24px 0 8px; display: grid; gap: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 8px; margin: 0 -8px; }
.footer-links a { display: inline-flex; align-items: center; justify-content: center; min-height: var(--tap); min-width: var(--tap); padding: 0 8px; color: var(--ink-2); font-size: 13px; line-height: 18px; }
.copyright { color: var(--ink-3); }
@media (prefers-reduced-motion: no-preference) { .motif line { transition: stroke 300ms; } }