:root{--color-bg:#fbfaf7;--color-bg-alt:#f3f1ea;--color-surface:#fff;--color-text:#1f1d1a;--color-text-muted:#5c584f;--color-border:#e3ddd0;--color-accent:#8a6d3b;--content-max-width:1120px;--article-max-width:760px;--radius-md:10px;--radius-lg:16px;--deco-gradient:linear-gradient(90deg, #8a6d3b 0%, #a3764f 20%, #6f7d63 45%, #5b7a8c 70%, #8a6d3b 100%)}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;height:100%}html[data-font-scale=sm]{font-size:87.5%}html[data-font-scale=lg]{font-size:115%}html{max-width:100vw;overflow-x:hidden}body{max-width:100vw;min-height:100%;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;font-family:PingFang TC,Microsoft JhengHei,Heiti TC,Noto Sans TC,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.9;display:flex}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:none}ul,ol{list-style:none}h1,h2,h3,h4{letter-spacing:.02em;font-weight:700;line-height:1.5}h1{font-size:clamp(1.75rem,1.4rem + 1.5vw,2.5rem)}h2{font-size:clamp(1.4rem,1.2rem + 1vw,1.9rem)}h3{font-size:clamp(1.15rem,1.05rem + .5vw,1.4rem)}p{margin:0 0 1.2em}p:last-child{margin-bottom:0}.container{width:100%;max-width:var(--content-max-width);margin:0 auto;padding:0 20px}.prose{max-width:var(--article-max-width);margin:0 auto}.prose p{color:var(--color-text);font-size:1.05rem;line-height:1.9}.deco-line{background:var(--deco-gradient);opacity:.85;border-radius:999px;height:4px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{background:var(--color-surface);color:var(--color-text);border-radius:var(--radius-md);border:1px solid var(--color-border);z-index:200;padding:10px 16px;transition:top .15s;position:absolute;top:-120px;left:12px}.skip-link:focus{top:12px}section+section{margin-top:0}::selection{background:#e4dcc7}