:root{--color-ink:#171a1f;--color-ink-muted:#4a5058;--color-page:#fbf8f1;--color-paper:#f5f2e9;--color-paper-shade:#e9e1cf;--color-pine:#c99a58;--color-cork-shadow:#8d6538;--color-frame:#6b4a24;--color-moss:#667c5b;--color-moss-text:#4f6346;--color-amber:#d99a3d;--color-sky:#7fa7b8;--color-line:#171a1f29;--color-line-strong:#171a1f52;--color-focus:#171a1f;--color-focus-halo:#fbf8f1;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;--font-mono:ui-monospace, "SFMono-Regular", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;--text-xs:.8125rem;--text-sm:.9375rem;--text-base:1.0625rem;--text-lg:1.25rem;--text-xl:clamp(1.5rem, 1.2rem + 1.2vw, 2rem);--text-2xl:clamp(2.25rem, 1.6rem + 2.8vw, 3.75rem);--leading-tight:1.15;--leading-body:1.6;--measure:65ch;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4.5rem;--space-9:6rem;--container:72rem;--container-narrow:46rem;--gutter:1rem;--radius-sm:.25rem;--radius-md:.5rem;--shadow-paper:0 1px 1px #3c260c38, 0 4px 10px -2px #3c260c47;--shadow-paper-lift:0 2px 3px #3c260c38, 0 14px 28px -6px #3c260c61;--ease-out:cubic-bezier(.2, .7, .3, 1);--duration-short:.18s;--target-min:2.75rem;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (min-width:48rem){:root{--gutter:1.5rem}}:root:lang(zh-HK){--font-sans:system-ui, -apple-system, "Segoe UI", "PingFang HK", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", "Noto Sans CJK TC", sans-serif}:lang(zh-HK) :is(h1,h2,h3){letter-spacing:0}*,:before,:after{box-sizing:border-box}*{margin:0}html{-moz-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:var(--space-5)}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{background:var(--color-page);min-height:100vh;color:var(--color-ink);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-body);-webkit-font-smoothing:antialiased;flex-direction:column;display:flex}main{flex:1}img,svg{max-width:100%;display:block}h1,h2,h3,h4{line-height:var(--leading-tight);text-wrap:balance}p{text-wrap:pretty}ul[role=list],ol[role=list]{padding:0;list-style:none}a{color:inherit;text-underline-offset:.2em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px;box-shadow:0 0 0 6px var(--color-focus-halo);border-radius:var(--radius-sm)}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.container{width:100%;max-width:calc(var(--container) + 2 * var(--gutter));padding-inline:var(--gutter);margin-inline:auto}.container-narrow{max-width:calc(var(--container-narrow) + 2 * var(--gutter))}.nowrap{white-space:nowrap}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip-link{top:var(--space-2);left:var(--space-2);z-index:100;padding:var(--space-3) var(--space-4);background:var(--color-ink);color:var(--color-paper);border-radius:var(--radius-sm);font-weight:600;position:absolute;transform:translateY(-200%)}.skip-link:focus-visible{transform:none}main:focus{box-shadow:none;outline:none}