@charset "UTF-8";
:root{--ink:#17201d;--paper:#f3f0e8;--surface:#faf8f2;--line:#cbc8bd;--accent:#ed5b3a;--green:#1d6b55;--soft-green:#dce6dd;--yellow:#eee3bd;--muted:#696e68;--sans:Inter,"Helvetica Neue","Hiragino Sans","Yu Gothic",sans-serif;--serif:"Yu Mincho","Hiragino Mincho ProN",serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 var(--sans)}a{color:inherit}a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.site-header{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1180px)/2));border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:750}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--ink);font:italic 16px Georgia,serif}.back-link{font-size:11px;font-weight:800;letter-spacing:.12em;text-decoration:none}.back-link:hover{color:var(--accent)}main{max-width:1180px;margin:auto}.breadcrumb{display:flex;gap:9px;padding:24px 0;font-size:10px;color:var(--muted);letter-spacing:.05em}.breadcrumb a:hover{color:var(--accent)}.article-hero{padding:70px 0 90px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1.2fr .8fr;column-gap:80px}.eyebrow{grid-column:1/-1;color:var(--green);font-size:10px;font-weight:800;letter-spacing:.17em;margin:0 0 18px}.article-hero h1{font:500 clamp(52px,7vw,78px)/1.15 var(--serif);letter-spacing:-.06em;margin:0}.article-hero h1 em{color:var(--accent);font-style:normal}.intro{font-family:var(--serif);font-size:17px;color:#48504b;margin:12px 0 0}.article-meta{grid-column:2;margin:32px 0 0;display:flex;gap:42px;border-top:1px solid var(--line);padding-top:18px}.article-meta div{display:flex;flex-direction:column}.article-meta dt{font-size:8px;color:var(--green);font-weight:800;letter-spacing:.15em}.article-meta dd{margin:4px 0 0;font-size:11px}.article-layout{display:grid;grid-template-columns:180px minmax(0,1fr);gap:60px;padding:90px 0 130px}.toc{align-self:start;position:sticky;top:30px;border-top:1px solid var(--ink);padding-top:16px}.toc p{font-size:9px;color:var(--green);font-weight:800;letter-spacing:.15em}.toc ol{list-style:none;padding:0;margin:18px 0;counter-reset:toc}.toc li{margin:10px 0;font-size:11px}.toc li:before{counter-increment:toc;content:"0"counter(toc);display:inline-block;width:28px;color:#999}.toc a{text-decoration:none}.toc a:hover{color:var(--accent)}.section-title{display:flex;gap:18px;align-items:center}.section-title>span{display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--green);color:var(--green);font-size:10px}.section-title p{font-size:8px;color:var(--green);font-weight:800;letter-spacing:.17em;margin:0}.section-title h2{font:500 36px var(--serif);letter-spacing:-.04em;margin:1px 0}.section-intro{font-family:var(--serif);color:var(--muted);margin:20px 0 42px}.word-card{background:var(--surface);border:1px solid var(--ink);scroll-margin-top:30px}.word-header{display:grid;grid-template-columns:1.1fr .9fr;border-bottom:1px solid var(--line)}.word-header>div{padding:34px}.word-header>div+div{border-left:1px solid var(--line)}.word-label{font-size:8px;color:var(--green);font-weight:800;letter-spacing:.16em;margin:0}.word-header h3{font:500 clamp(42px,6vw,62px)/1 var(--serif);letter-spacing:-.04em;margin:14px 0 9px}.pronunciation{margin:0;font-size:12px}.pronunciation span{color:var(--muted);margin-left:8px}.word-summary{display:flex;flex-direction:column;justify-content:center}.part-of-speech{align-self:start;background:var(--green);color:white;padding:3px 8px;font-size:9px;font-weight:800}.word-summary strong{font:500 24px var(--serif);margin:13px 0 2px}.word-summary p{font-size:12px;color:var(--muted);margin:0}.card-section{padding:30px 34px;border-bottom:1px solid var(--line)}.card-section h4,.my-note h4{font-size:10px;letter-spacing:.08em;margin:0 0 22px}.card-section h4 span{color:var(--green);margin-right:12px}.word-formula{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:12px}.word-formula>div{border:1px solid var(--line);padding:16px;background:var(--paper)}.word-formula>i{align-self:center;font:normal 20px var(--serif);color:var(--muted)}.word-formula small{display:block;font-size:8px;color:var(--green);letter-spacing:.1em}.word-formula b{display:block;font:500 24px var(--serif);margin:3px 0}.word-formula p{font-size:10px;color:var(--muted);margin:0}.word-formula .root{border-color:var(--green);background:var(--soft-green)}.word-formula .empty{opacity:.58}.card-columns{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}.card-columns .card-section{border-bottom:0}.card-columns .card-section+.card-section{border-left:1px solid var(--line)}.card-section>p{font-family:var(--serif);font-size:14px;color:#4f5651}.card-section p i{color:var(--green);font-style:normal;font-weight:700}.related-words{list-style:none;padding:0;margin:0}.related-words li{display:grid;grid-template-columns:65px 1fr;align-items:center;border-top:1px solid var(--line);padding:10px 0}.related-words span{font-size:8px;color:var(--muted);text-transform:uppercase}.related-words b{font:500 18px var(--serif)}.related-words small{grid-column:2;font-size:10px;color:var(--muted)}.example blockquote{margin:0;padding-left:18px;border-left:2px solid var(--accent)}.example blockquote p{font:500 21px var(--serif);margin:0}.example blockquote footer{font-size:11px;color:var(--muted);margin-top:5px}.my-note{margin:28px 34px;display:grid;grid-template-columns:58px 1fr;background:var(--yellow);transform:rotate(-.35deg);box-shadow:3px 4px 0 rgba(23,32,29,.08)}.note-stamp{display:grid;place-items:center;text-align:center;border-right:1px dashed #b9a86b;color:#8d7233;font-size:9px;font-weight:900;letter-spacing:.1em}.my-note>div+div{padding:22px}.my-note h4{color:#755d2a;margin-bottom:8px}.my-note p{font-family:var(--serif);font-size:13px;margin:0;color:#554b34}.my-note i{font-style:normal;font-weight:700}.word-footer{min-height:58px;border-top:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:0 34px}.word-footer span{border:1px solid var(--line);border-radius:20px;padding:3px 9px;font-size:8px;color:var(--muted)}.word-footer a{margin-left:auto;font-size:9px;font-weight:800;text-decoration:none}.site-footer{max-width:1180px;margin:auto;min-height:120px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:10px;color:var(--muted)}.site-footer a:hover{color:var(--accent)}
@media(max-width:1220px){main,.site-footer{margin-left:28px;margin-right:28px}.site-header{padding-left:28px;padding-right:28px}}
@media(max-width:760px){.site-header{height:64px}.article-hero{padding:52px 0 65px;display:block}.article-hero h1{font-size:50px}.intro{margin-top:28px}.article-meta{margin-top:28px}.article-layout{display:block;padding:65px 0 90px}.toc{position:static;margin-bottom:48px}.toc ol{display:flex;gap:20px}.word-header{grid-template-columns:1fr}.word-header>div{padding:26px}.word-header>div+div{border-left:0;border-top:1px solid var(--line)}.word-formula{grid-template-columns:1fr}.word-formula>i{text-align:center;line-height:.5}.card-columns{grid-template-columns:1fr}.card-columns .card-section+.card-section{border-left:0;border-top:1px solid var(--line)}.card-section{padding:26px}.my-note{margin:22px}.word-footer{padding:12px 22px;flex-wrap:wrap}.word-footer a{width:100%;margin:3px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Compact scale */
body{font-size:14px}.site-header{height:64px;padding-left:max(24px,calc((100vw - 1040px)/2));padding-right:max(24px,calc((100vw - 1040px)/2))}.brand-mark{width:30px;height:30px;font-size:14px}main,.site-footer{max-width:1040px}.breadcrumb{padding:17px 0;font-size:9px}.article-hero{padding:48px 0 62px;grid-template-columns:1.15fr .85fr;column-gap:58px}.article-hero h1{font-size:clamp(42px,5.5vw,60px)}.intro{font-size:15px}.article-meta{margin-top:24px;padding-top:14px;gap:30px}.article-layout{grid-template-columns:150px minmax(0,1fr);gap:42px;padding:64px 0 95px}.section-title>span{width:36px;height:36px}.section-title h2{font-size:30px}.section-intro{margin:15px 0 30px}.word-header>div{padding:25px 28px}.word-header h3{font-size:clamp(36px,5vw,48px);margin:10px 0 0}.word-summary strong{font-size:20px;margin-top:9px}.card-section{padding:23px 28px}.card-section h4,.my-note h4{margin-bottom:16px}.word-formula>div{padding:12px}.word-formula b{font-size:20px}.card-section>p{font-size:13px}.example blockquote p{font-size:18px}.my-note{margin:20px 28px;grid-template-columns:52px 1fr}.my-note>div+div{padding:17px}.word-footer{min-height:50px;padding:0 28px}.site-footer{min-height:90px}
@media(max-width:760px){body{font-size:13px}.site-header{height:56px}.brand-mark{width:28px;height:28px}.article-hero{padding:36px 0 46px}.article-hero h1{font-size:40px}.intro{font-size:14px;margin-top:20px}.article-layout{padding:45px 0 65px}.toc{margin-bottom:34px}.section-title h2{font-size:27px}.section-intro{margin-bottom:24px}.word-header>div{padding:20px}.word-header h3{font-size:36px}.word-summary strong{font-size:18px}.card-section{padding:20px}.word-formula{gap:8px}.word-formula>div{padding:10px}.my-note{margin:16px}.my-note>div+div{padding:14px}.word-footer{padding:10px 16px}.site-footer{min-height:76px}}
.category-heading{scroll-margin-top:24px;margin:52px 0 18px;padding:11px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--line);font:500 18px var(--serif)}.category-heading span{display:block;margin-bottom:2px;color:var(--green);font:800 8px var(--sans);letter-spacing:.16em}.compact-card+.compact-card{margin-top:18px}.compact-card .word-header h3{font-size:40px}.compact-card .card-section{padding-top:20px;padding-bottom:20px}.compact-card .my-note{margin-top:18px;margin-bottom:18px}.compact-card .related-words li:first-child{border-top:0}
@media(max-width:760px){.category-heading{margin-top:38px}.compact-card+.compact-card{margin-top:14px}.compact-card .word-header h3{font-size:32px}}
.page-dates{display:flex;gap:16px;color:var(--muted);font-size:8px;letter-spacing:.05em}.page-dates span{white-space:nowrap}@media(max-width:760px){.site-footer{gap:12px;flex-wrap:wrap}.page-dates{order:3;width:100%}}