:root{color-scheme:light;--paper:#f7f6f2;--ink:#20231f;--muted:#70736c;--line:#dcded6;--accent:#426c4b;--white:#fff;--serif:Georgia,'Noto Serif CJK SC','Songti SC',serif;--sans:Inter,-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;-webkit-font-smoothing:antialiased}a{color:inherit}button,input{font:inherit}button,a{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #598262;outline-offset:4px}.skip{position:absolute;left:12px;top:-60px;background:#fff;padding:12px;z-index:100}.skip:focus{top:8px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{border-bottom:1px solid var(--line)}.header-inner{max-width:1280px;height:80px;margin:auto;padding:0 48px;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-size:12px;font-weight:800;letter-spacing:.13em}.brand b{font-weight:400;color:#7b7e76}.brand-mark{display:grid;place-items:center;background:var(--ink);color:#fff;font:italic 700 23px var(--serif);width:37px;height:37px;letter-spacing:0}.site-header nav{display:flex;gap:34px;font-size:13px;font-weight:600;color:#565a52}.site-header nav a{text-decoration:none}.site-header nav a:hover{color:var(--accent)}.intro,.library,.reading,.not-found{max-width:1184px;margin:auto}.intro{padding:54px 0 66px}.intro-kicker,.eyebrow{font-size:10px;letter-spacing:.16em;font-weight:750;color:var(--muted)}.intro-kicker{display:flex;align-items:center;gap:9px}.pulse{width:6px;height:6px;background:#6d9672;border-radius:50%}.intro-index{margin-left:auto}.intro-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:65px;align-items:end;padding-top:80px}.intro h1{font-family:var(--serif);font-size:clamp(62px,7.2vw,100px);font-weight:500;letter-spacing:-.055em;line-height:1.15;margin:20px 0 0}.intro h1 em{font-style:normal;color:var(--accent)}.intro-side{max-width:300px;padding-bottom:6px}.intro-rule{display:block;width:42px;border-top:2px solid var(--accent)}.intro-side p{font-size:15px;line-height:2;color:#595e55;margin:24px 0 31px}.intro-count{font-size:12px;font-weight:700;letter-spacing:.05em}.intro-count span{margin-left:12px;color:var(--accent)}.library{padding-bottom:100px}.library-head{border-top:1px solid var(--ink);padding:34px 0 31px;display:flex;align-items:end;justify-content:space-between;gap:24px}.library-head h2,.more h2{font-family:var(--serif);font-size:46px;line-height:1;margin:14px 0 0;font-weight:500}.title-dot{color:var(--accent)}.library-head>p{font-size:13px;color:var(--muted);margin:0 0 5px}.eyebrow span{color:#a1a49c}.toolbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:64px}.filters{display:flex;gap:6px;flex-wrap:wrap}.filter{border:0;background:transparent;color:#757971;padding:9px 14px;cursor:pointer;border-radius:2px;font-size:12px}.filter.active{background:var(--ink);color:#fff}.filter span{font-size:10px;color:#bec5bb;margin-left:4px}.search{display:flex;align-items:center;gap:9px;color:#71766e;font-size:20px}.search input{border:0;outline:0;background:transparent;color:var(--ink);width:130px;font-size:13px;padding:12px 0}.article-row{display:grid;grid-template-columns:54px 1fr 32px;gap:20px;align-items:start;padding:31px 8px;border-bottom:1px solid var(--line);text-decoration:none;transition:background .18s ease}.article-row:hover{background:#efefea}.row-num{font:italic 15px var(--serif);color:#a4a89d;padding-top:2px}.row-meta{display:flex;flex-wrap:wrap;gap:17px;color:#85897f;font-size:11px;letter-spacing:.025em}.row-meta span:first-child{color:var(--accent);font-weight:700}.row-body h3{font-size:19px;line-height:1.5;letter-spacing:.005em;margin:12px 0 8px;font-weight:650}.row-body p{color:#777b73;font-size:13px;line-height:1.7;margin:0}.row-arrow{color:#9ca198;font-size:19px;text-align:right}.article-row:hover .row-arrow{color:var(--accent)}.empty{padding:36px;color:var(--muted);font-size:14px}.site-footer{border-top:1px solid var(--line);max-width:1184px;margin:auto;padding:36px 0 45px;display:flex;align-items:end;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px}.footer-brand{color:var(--ink)}.footer-brand .brand-mark{width:31px;height:31px;font-size:19px}.site-footer p{margin:15px 0 0}.site-footer>span{font:italic 14px var(--serif)}.reading{padding:49px 0 90px}.reading-head{max-width:850px;margin:0 auto 56px}.back{display:inline-block;text-decoration:none;font-size:13px;color:var(--muted);margin-bottom:52px}.back:hover{color:var(--accent)}.reading-head .eyebrow{color:var(--accent)}.reading-head h1{font-family:var(--serif);font-size:clamp(34px,4.2vw,54px);line-height:1.34;letter-spacing:-.02em;font-weight:600;margin:18px 0 25px}.reading-meta{display:flex;gap:22px;color:var(--muted);font-size:12px}.reading-summary{font-size:16px;line-height:1.9;color:#676c63;border-left:2px solid #97ad99;padding-left:18px;margin:28px 0 0}.reading-grid{display:grid;grid-template-columns:minmax(0, 760px) 220px;gap:64px;justify-content:center;align-items:start}.prose{min-width:0;background:#fff;border:1px solid #e6e7e1;padding:45px 56px;font-size:16px;line-height:2;color:#333831;overflow-wrap:anywhere}.prose h2,.prose h3,.prose h4{font-family:var(--sans);color:#20251f;line-height:1.5;scroll-margin-top:24px}.prose h2{font-size:23px;margin:52px 0 20px;padding-top:8px}.prose h2:first-child{margin-top:0}.prose h3{font-size:18px;margin:35px 0 13px}.prose p{margin:1.1em 0}.prose ul,.prose ol{padding-left:1.6em}.prose li{padding-left:2px;margin:.35em 0}.prose a{color:#326343;text-decoration-color:#9bb6a0;text-underline-offset:3px}.prose blockquote{border-left:3px solid #8eab91;margin:25px 0;padding:3px 22px;color:#526255;background:#f6f8f4}.prose pre{background:#f0f2ed;padding:20px;overflow:auto;font:13px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace;border-radius:3px}.prose :not(pre)>code{background:#f0f2ed;padding:2px 5px;font-size:.9em;border-radius:3px}.prose hr{border:0;border-top:1px solid #e7e9e3;margin:42px 0}.table-wrap{overflow-x:auto;margin:24px 0}.prose table{border-collapse:collapse;width:100%;min-width:480px;font-size:13px;line-height:1.6}.prose th,.prose td{padding:12px;border-bottom:1px solid #e2e5df;text-align:left;vertical-align:top}.prose th{background:#f3f5f1;font-weight:700}.diagram{margin:26px 0}.diagram figcaption{font-size:11px;color:var(--muted);letter-spacing:.1em;margin-bottom:8px}.diagram .mermaid{background:#f6f8f4;text-align:center}.diagram svg{max-width:100%;height:auto}.toc{position:sticky;top:30px;max-height:calc(100vh - 60px);overflow:auto;padding-left:20px;border-left:1px solid var(--line)}.toc p{font-size:10px;font-weight:700;letter-spacing:.14em;color:#969a90}.toc nav{display:flex;flex-direction:column;gap:12px}.toc a{font-size:12px;line-height:1.5;color:#777d73;text-decoration:none}.toc a:hover{color:var(--accent)}.more{margin:90px auto 0;max-width:850px;border-top:1px solid var(--ink);padding-top:30px}.more-title{margin-bottom:26px}.more-link{display:grid;grid-template-columns:145px 1fr 24px;gap:15px;padding:20px 0;border-bottom:1px solid var(--line);text-decoration:none;align-items:start}.more-link span:first-child{font-size:11px;color:var(--muted)}.more-link strong{font-size:14px;line-height:1.5}.more-link:hover strong{color:var(--accent)}.not-found{min-height:65vh;padding:100px 0}.not-found h1{font-family:var(--serif);font-size:42px}.not-found a{color:var(--accent)}@media(max-width:1250px){.intro,.library,.reading,.not-found,.site-footer{margin-left:48px;margin-right:48px}.reading-grid{gap:35px}}@media(max-width:850px){.toc{display:none}.reading-grid{grid-template-columns:minmax(0,760px)}.intro-grid{gap:30px}.intro h1{font-size:64px}}@media(max-width:600px){.header-inner{height:68px;padding:0 20px}.site-header nav{gap:18px}.intro,.library,.reading,.not-found,.site-footer{margin-left:20px;margin-right:20px}.intro{padding:35px 0 48px}.intro-index{display:none}.intro-grid{display:block;padding-top:56px}.intro h1{font-size:54px}.intro-side{max-width:none;margin-top:37px}.intro-side p{margin:16px 0 20px}.library-head{align-items:start;flex-direction:column}.library-head h2,.more h2{font-size:38px}.toolbar{display:block;padding:11px 0}.filters{gap:3px}.filter{padding:9px}.search{border-top:1px solid var(--line);margin-top:8px}.search input{width:100%}.article-row{grid-template-columns:28px 1fr 20px;gap:11px;padding:25px 0}.row-body h3{font-size:17px}.row-meta{gap:10px}.reading{padding-top:30px}.back{margin-bottom:38px}.reading-head{margin-bottom:30px}.reading-head h1{font-size:32px}.prose{padding:25px 20px;line-height:1.95}.prose h2{font-size:21px}.site-footer{align-items:start;flex-direction:column}.more-link{grid-template-columns:1fr 22px}.more-link span:first-child{grid-column:1/-1}.not-found{padding:75px 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}