:root{color-scheme:light;--paper:#f7f7f2;--ink:#202d29;--muted:#64706a;--line:#dce0d6;--accent:#426449;--soft:#edf0e7;--serif:"Songti SC","Noto Serif CJK SC","Source Han Serif SC",SimSun,serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible{outline:2px solid var(--accent);outline-offset:6px}::selection{background:#d9e4ce}.wrap{width:min(1088px,calc(100% - 96px));margin:auto}.skip-link{position:absolute;top:-100px;left:24px;padding:8px 16px;background:var(--ink);color:white;z-index:2}.skip-link:focus{top:12px}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:112px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:13px;font-size:21px;font-weight:650;letter-spacing:1px}.brand-mark{display:grid;place-items:center;width:34px;height:38px;background:var(--ink);color:var(--paper);font-family:Georgia,serif;font-size:27px;font-weight:400;line-height:1;border-radius:2px}.site-nav{display:flex;gap:32px;font-size:14px;color:var(--muted)}.site-nav a{padding:8px 0}.site-nav a:hover{text-decoration:underline;text-underline-offset:6px}.hero{display:grid;grid-template-columns:1fr 260px;gap:76px;padding:78px 0 74px}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--accent);font-size:12px;font-weight:550;letter-spacing:2px}.eyebrow:before{content:"";height:6px;width:6px;background:var(--accent);border-radius:50%;flex:none}h1,h2,h3,p{margin-top:0}.hero h1{margin:24px 0 22px;font-family:var(--serif);font-size:clamp(36px,4.5vw,54px);font-weight:500;line-height:1.5;letter-spacing:2px}.hero h1 span{color:var(--accent)}.hero-description{color:var(--muted);font-size:15px;line-height:2;max-width:530px;margin-bottom:28px}.text-link{font-size:14px;display:inline-flex;align-items:center;gap:22px;border-bottom:1px solid var(--accent);padding-bottom:5px;color:var(--accent)}.hero-note{align-self:center;border-left:1px solid #c7cfbf;padding-left:26px;color:var(--muted);font-size:13px}.note-label{font-family:Georgia,serif;letter-spacing:2px;font-size:12px;color:var(--accent);margin-bottom:22px}.hero-note p{line-height:2.1;margin:0 0 18px}.note-flow{font-size:12px;letter-spacing:1px;color:var(--accent)}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:24px 0 22px;border-top:1px solid var(--ink)}.section-heading h2{font-size:19px;font-weight:550;letter-spacing:1px;margin:0}.section-heading span{font-family:Georgia,serif;font-size:12px;color:var(--muted);letter-spacing:1.5px}.notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.note-card{position:relative;display:flex;flex-direction:column;min-width:0;padding:25px 0 28px;border-bottom:1px solid var(--line)}.note-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted);margin-bottom:22px;letter-spacing:.6px}.category{color:var(--accent);background:var(--soft);padding:3px 9px;border-radius:2px;font-size:12px}.note-card h3{font-family:var(--serif);font-size:23px;font-weight:550;line-height:1.65;margin-bottom:14px;letter-spacing:.3px}.note-card h3 a:after{content:"";position:absolute;inset:0}.note-card:hover h3{color:var(--accent)}.note-card:focus-within{outline:2px solid var(--accent);outline-offset:7px}.note-card p{font-size:14px;color:var(--muted);line-height:1.9;margin-bottom:28px}.card-bottom{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--accent);margin-top:auto}.card-index{font-family:Georgia,serif;color:#929b8d;font-size:13px}.about{display:grid;grid-template-columns:240px 1fr;gap:48px;margin:76px 0 66px;padding:36px 40px;background:var(--soft);border-radius:3px}.about h2{font-family:var(--serif);font-size:26px;font-weight:500;margin-bottom:7px}.about-kicker{font-size:11px;letter-spacing:2px;color:var(--accent)}.about p{font-size:14px;line-height:2;color:#4d5c52;margin:0}.about p+p{margin-top:12px}.site-footer{border-top:1px solid var(--line);padding:27px 0 22px;color:var(--muted);font-size:12px}.footer-top{display:flex;justify-content:space-between;gap:18px;margin-bottom:22px}.footer-top a{color:var(--accent)}.icp{display:block;text-align:center;color:#4d5c52;font-size:13px}.icp a{display:inline-block;padding:4px 6px;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#b1bcac}.article-wrap{width:min(720px,100%);margin:0 auto;padding:52px 0 72px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:38px}.breadcrumb a{color:var(--accent)}.article-header{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:32px}.article-header .category{display:inline-block;margin-bottom:18px}.article-header h1{font-family:var(--serif);font-size:clamp(28px,3.4vw,38px);font-weight:550;line-height:1.6;letter-spacing:.5px;margin-bottom:12px}.article-summary{font-size:15px;color:var(--muted);margin:0}.prose{font-size:16px;line-height:2}.prose h2{font-size:21px;line-height:1.6;font-weight:550;margin:36px 0 15px}.prose p{margin-bottom:20px}.prose ul,.prose ol{padding-left:24px;margin:0 0 24px}.prose li{padding-left:4px;margin-bottom:8px}.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85em;background:#e9ede3;padding:2px 5px;border-radius:3px;overflow-wrap:anywhere}.prose pre{background:#e9ede3;padding:22px 24px;border:1px solid var(--line);border-radius:3px;overflow-x:auto;line-height:1.8;margin:24px 0}.prose pre code{padding:0;background:none;font-size:13px;overflow-wrap:normal}.prose blockquote{margin:26px 0;padding:4px 0 4px 22px;border-left:2px solid #8fa17f;color:#4d5c52;font-family:var(--serif);font-size:18px}.prose blockquote p{margin:0}.article-end{border-top:1px solid var(--line);margin-top:40px;padding-top:24px;font-size:13px;color:var(--muted)}.article-end a{display:inline-block;margin-top:16px;color:var(--accent)}
@media(min-width:1250px){.notes-grid{gap:38px}.note-card+.note-card{border-left:1px solid var(--line);padding-left:30px}.note-card{min-height:312px}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.site-header{min-height:90px}.site-nav{gap:22px}.hero{grid-template-columns:1fr;gap:32px;padding:50px 0 48px}.hero-note{max-width:540px;padding-left:20px}.hero-note p{margin-bottom:10px}.note-label{margin-bottom:12px}.notes-grid{grid-template-columns:1fr;gap:0}.note-card{padding:26px 0}.note-meta{margin-bottom:14px}.note-card h3{font-size:24px;margin-bottom:10px}.note-card p{margin-bottom:18px}.about{grid-template-columns:1fr;gap:20px;margin:48px 0;padding:28px}.article-wrap{padding-top:34px}.breadcrumb{margin-bottom:28px}}
@media(max-width:420px){.wrap{width:calc(100% - 40px)}.brand{font-size:18px;gap:10px}.brand-mark{width:29px;height:33px;font-size:24px}.site-nav{gap:18px;font-size:13px}.hero h1{font-size:34px;letter-spacing:1px}.hero-description{font-size:14px}.section-heading span{font-size:10px;letter-spacing:.8px}.footer-top{flex-direction:column;gap:4px}.about{padding:25px}.prose pre{padding:18px 16px}.article-header h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}