/* Compact contribution and community pages. */
html[lang="en"] .participation-page [data-lang="zh"],
html[lang="zh"] .participation-page [data-lang="en"] { display: none !important; }
.participation-page { min-height: 100vh; }
.participation-page .participation-main { padding: 150px 0 100px; }
.participation-page .participation-main > .shell { width: min(1000px, calc(100% - 96px)); }
.participation-page .participation-heading { margin-bottom: 44px; }
.participation-page .participation-heading h1 { margin: 0; font-size: clamp(40px, 5vw, 64px); line-height: 1.15; letter-spacing: -.04em; }
.participation-page .participation-heading p { margin: 20px 0 0; color: var(--muted); font-size: 22px; line-height: 1.6; }
.participation-page .participation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.participation-page .participation-card { min-width: 0; padding: 32px; border: 1px solid var(--paper-line); border-radius: 16px; background: #fff; }
.participation-page .participation-card h2 { margin: 0; font-size: 32px; line-height: 1.25; letter-spacing: -.03em; }
.participation-page .participation-card p { margin: 18px 0 0; color: var(--muted); font-size: 20px; line-height: 1.6; }
.participation-page .participation-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; min-height: 210px; margin-top: 28px; padding: 28px 16px; border: 1px dashed var(--paper-line); border-radius: 10px; background: var(--paper); text-align: center; }
.participation-page .participation-placeholder > strong { font-size: 24px; line-height: 1.4; font-weight: 600; }
.participation-page .participation-status { display: inline-block; align-self: center; padding: 6px 13px; border: 1px solid var(--paper-line); border-radius: 30px; color: var(--steel); font-size: 16px; line-height: 1.3; }
.participation-page .participation-note { margin: 0; }
.participation-page .participation-note .participation-status { margin-bottom: 22px; }
.participation-page .participation-links { display: flex; flex-wrap: wrap; gap: 16px 28px; margin-top: 32px; }
.participation-page .participation-links a { padding: 10px 0; border-bottom: 1px solid var(--ink); font-size: 20px; line-height: 1.4; font-weight: 600; }
.participation-page .participation-links a:hover { color: var(--signal); border-color: var(--signal); }
.participation-page .participation-links a:focus-visible { outline: 3px solid var(--steel); outline-offset: 5px; }
.participation-page .participation-main + footer p { font-size: 20px; }
@media (max-width: 700px) {
  .participation-page .participation-main { padding: 112px 0 64px; }
  .participation-page .participation-main > .shell { width: calc(100% - 32px); }
  .participation-page .participation-heading { margin-bottom: 30px; }
  .participation-page .participation-heading p { font-size: 20px; }
  .participation-page .participation-grid { grid-template-columns: 1fr; gap: 16px; }
  .participation-page .participation-card { padding: 24px; }
  .participation-page .participation-card h2 { font-size: 28px; }
  .participation-page .participation-card p { font-size: 19px; }
  .participation-page .participation-placeholder { min-height: 180px; }
  .participation-page .participation-placeholder > strong { font-size: 22px; }
  .participation-page .participation-links { gap: 12px 24px; }
  .participation-page .participation-links a { font-size: 19px; }
}