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clamp(1.25rem,2.5vw,2rem);font-size:.74rem;font-weight:600}.display{letter-spacing:var(--tracking-display);text-wrap:balance;margin:0;font-weight:600;line-height:1.04}.display:lang(zh),.display :lang(zh){letter-spacing:var(--tracking-display-cjk);line-height:1.16}@supports (text-spacing-trim:space-first){:is(.display,.lede,h1,h2,h3):lang(zh){text-spacing-trim:space-first}}.lede{color:var(--muted);font-size:var(--text-lede);text-wrap:pretty;line-height:1.75}.btn{border-radius:var(--radius-control);white-space:nowrap;min-height:3rem;transition:background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:.55rem;padding:0 1.6rem;font-size:.95rem;font-weight:500;line-height:1;text-decoration:none;display:inline-flex}.btn-primary{color:var(--color-accent-ink);background:var(--ink)}.btn-primary:hover{background:#000}.btn-ghost{color:var(--ink);background:var(--glass-bg);box-shadow:var(--shadow-soft), var(--glass-inner);backdrop-filter:var(--glass-blur);border-color:#1d1d1f1f}.btn-ghost:hover{background:var(--glass-bg-strong);border-color:#1d1d1f42}.btn-on-dark{color:var(--stage);background:var(--on-dark)}.btn-on-dark:hover{background:#fff}html.js .reveal{opacity:0;transition:opacity .7s var(--ease-out), transform .7s var(--ease-out);transition-delay:var(--reveal-delay,0s);transform:translateY(.7rem)}html.js .reveal.is-visible{opacity:1;transform:none}html.js .reveal-fade{opacity:0;transition:opacity .7s var(--ease-out);transition-delay:var(--reveal-delay,0s)}html.js .reveal-fade.is-visible{opacity:1}.skip-link{z-index:1000;color:var(--on-dark);background:var(--ink);border:2px solid var(--paper);border-radius:var(--radius-control);transition:transform var(--transition-fast);padding:.7rem 1rem;font-size:.875rem;font-weight:600;line-height:1;text-decoration:none;position:fixed;top:1rem;left:1rem;transform:translateY(calc(-100% - 2rem))}.skip-link:focus-visible{transform:translateY(0)}.visually-hidden{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}@media (width<=47.5rem){:root{--shell-gutter:1.25rem;--nav-height:3.75rem;--radius-tile:1.1rem;--radius-media:1rem}}@media (prefers-reduced-motion:reduce){html:focus-within{scroll-behavior:auto}html.js .reveal,html.js .reveal-fade{opacity:1;transition:none;transform:none}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;transition-delay:0s!important;animation-duration:.01ms!important;animation-iteration-count:1!important;animation-delay:0s!important}}