:root{--paper: #f7f9fb;--surface: #fff;--ink: #122033;--muted: #607084;--line: #d9e2eb;--teal: #087f78;--blue: #2563eb;--shadow: 0 18px 55px rgb(18 32 51/.08);font-family:IBM Plex Sans,Noto Sans TC,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 85% -10%,rgb(37 99 235/.08),transparent 32rem),var(--paper)}a{color:inherit}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgb(217 226 235/.9);background:#f7f9fbe6;backdrop-filter:blur(18px)}.header-inner{display:flex;max-width:1180px;min-height:72px;align-items:center;justify-content:space-between;margin:auto;padding:0 28px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-family:Noto Sans TC,sans-serif;font-size:1.05rem;font-weight:750;text-decoration:none;letter-spacing:-.02em}.brand-mark{width:9px;height:28px;border-radius:99px;background:linear-gradient(var(--blue),var(--teal));box-shadow:0 0 0 5px #2563eb12}.nav-level{list-style:none;margin:0;padding:0}.nav-root{display:flex;align-items:center;gap:4px}.nav-level li{position:relative}.nav-level a,.nav-level summary{display:flex;min-height:40px;align-items:center;gap:8px;border-radius:9px;padding:8px 12px;color:var(--muted);font-size:.9rem;font-weight:620;text-decoration:none;cursor:pointer;transition:background .16s,color .16s}.nav-level a:hover,.nav-level summary:hover,.nav-level a:focus-visible,.nav-level summary:focus-visible{background:#fff;color:var(--blue);outline:none}.nav-level summary{list-style:none}.nav-level summary::-webkit-details-marker{display:none}.nav-level summary svg{width:11px;fill:none;stroke:currentColor;stroke-width:1.6;transition:transform .16s}.desktop-nav .nav-flyout{position:absolute;top:calc(100% + 6px);left:0;display:none;min-width:210px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow);padding:6px}.desktop-nav details[open]>.nav-flyout{display:block}.desktop-nav .nav-flyout .nav-flyout{top:0;left:calc(100% + 6px)}.desktop-nav details[open]>summary svg{transform:rotate(180deg)}.nav-destination{margin-bottom:4px!important;border-bottom:1px solid var(--line);padding-bottom:4px!important}.nav-destination a{color:var(--teal);font-size:.78rem}.mobile-navigation{display:none}.content-page{width:min(860px,calc(100% - 40px));min-height:65vh;margin:clamp(42px,8vw,96px) auto;padding:clamp(28px,6vw,72px);border:1px solid var(--line);border-radius:3px 24px 3px 3px;background:var(--surface);box-shadow:var(--shadow)}.page-heading{margin-bottom:44px}.page-locale{margin:0 0 10px;color:var(--teal);font-size:.72rem;font-weight:750;letter-spacing:.16em;text-transform:uppercase}.page-heading h1{max-width:760px;margin:0;font-family:Noto Sans TC,sans-serif;font-size:clamp(2.2rem,7vw,4.5rem);font-weight:760;line-height:1.08;letter-spacing:-.055em}.heading-rule{width:72px;height:4px;margin-top:26px;background:linear-gradient(90deg,var(--blue),var(--teal))}.rich-content{font-size:1.04rem;line-height:1.85;color:#26384c}.rich-content img{display:block;max-width:100%;height:auto;border-radius:12px}.rich-content a{color:var(--blue);text-underline-offset:3px}.content-error{border-left:4px solid #dc2626;background:#fef2f2;padding:18px}.site-footer{display:flex;max-width:1180px;align-items:flex-end;justify-content:space-between;margin:0 auto;padding:30px 28px 42px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem}.site-footer>div{display:grid;gap:8px;font-weight:650}.site-footer p{margin:0}.publication-version{font-family:ui-monospace,monospace;color:var(--teal);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase}.not-found{width:min(760px,calc(100% - 40px));min-height:60vh;margin:auto;padding:100px 0}.not-found p{color:var(--teal);font-family:ui-monospace,monospace}.not-found h1{font-size:clamp(2.4rem,8vw,5.5rem);letter-spacing:-.06em}.not-found a{display:inline-flex;margin-top:20px;border-bottom:2px solid var(--blue);padding-bottom:4px;color:var(--blue);font-weight:700;text-decoration:none}@media(max-width:800px){.desktop-nav{display:none}.mobile-navigation{display:block}.mobile-navigation>summary{display:grid;width:42px;height:42px;place-content:center;gap:5px;border:1px solid var(--line);border-radius:10px;background:#fff;list-style:none;cursor:pointer}.mobile-navigation>summary span{display:block;width:18px;height:2px;background:var(--ink)}.mobile-navigation>nav{position:absolute;inset:72px 0 auto;border-bottom:1px solid var(--line);background:#fff;padding:12px 20px 22px;box-shadow:var(--shadow)}.mobile-navigation:not([open])>nav{display:none}.mobile-navigation .nav-root{display:block}.mobile-navigation .nav-flyout{margin-left:15px;border-left:1px solid var(--line);padding-left:8px}.site-footer{align-items:flex-start;flex-direction:column;gap:22px}.content-page{width:min(100% - 24px,860px);margin:24px auto;padding:28px 22px}.page-heading{margin-bottom:28px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}