:root{--kinari:#f7f3ea;--paper:#fffdf8;--white:#ffffff;--sumi:#1f2226;--sumi-2:#43474d;--sumi-3:#5f646b;--line:#d9d0bb;--line-soft:#e9e3d3;--ai:#24476e;--ai-dark:#183453;--ai-soft:#e8eef5;--ai-ink:#ffffff;--mark:#fde9a8;--focus:#2f6fb3;--shadow:0 1px 2px rgba(31,34,38,.06);--radius:6px;--serif:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho","YuMincho",serif;--sans:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","BIZ UDPGothic","Yu Gothic UI","Meiryo",sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--header-h:60px;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--kinari:#16181c;--paper:#1c1f24;--white:#22262c;--sumi:#ece7dc;--sumi-2:#c9c4b9;--sumi-3:#a39f96;--line:#3a3f47;--line-soft:#2e3239;--ai:#8fb3df;--ai-dark:#b5cdec;--ai-soft:#1f2c3d;--ai-ink:#0f1a28;--mark:#5a4a12;--focus:#8fb3df;--shadow:none;color-scheme:dark}}:root[data-theme=dark]{--kinari:#16181c;--paper:#1c1f24;--white:#22262c;--sumi:#ece7dc;--sumi-2:#c9c4b9;--sumi-3:#a39f96;--line:#3a3f47;--line-soft:#2e3239;--ai:#8fb3df;--ai-dark:#b5cdec;--ai-soft:#1f2c3d;--ai-ink:#0f1a28;--mark:#5a4a12;--focus:#8fb3df;--shadow:none;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 12px)}body{margin:0;background:var(--kinari);color:var(--sumi);font-family:var(--sans);line-height:1.8;letter-spacing:.01em;line-break:strict;overflow-wrap:anywhere;word-break:normal;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}h1,h2,h3{text-wrap:balance;font-feature-settings:"palt";letter-spacing:.02em}p,li,dd{text-wrap:pretty}a{color:var(--ai);text-decoration:none;text-underline-offset:.2em}a:hover{text-decoration:underline}button,input,select{font:inherit;color:inherit}button{touch-action:manipulation}:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:3px}main:focus{outline:none}img,svg{max-width:100%}mark{background:var(--mark);color:inherit;padding:0 .08em;border-radius:2px}code,pre{font-family:var(--mono);font-size:.85em}kbd{font-family:var(--mono)}.tnum{font-variant-numeric:tabular-nums}.muted{color:var(--sumi-3)}.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ai);color:var(--ai-ink);padding:10px 16px;border-radius:var(--radius)}.skip-link:focus{top:10px}.sp-only{display:none}.ext{font-size:.8em;margin-left:.15em;opacity:.75}.wrap{max-width:1120px;margin:0 auto;padding:0 16px}header.site{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}header.site:after{content:"";display:block;height:2px;background:var(--sumi);opacity:.85}.header-row{display:flex;align-items:center;gap:16px;min-height:var(--header-h)}.brand{display:flex;align-items:center;gap:10px;color:var(--sumi);flex-shrink:0}.brand:hover{text-decoration:none}.brand-mark{display:block;width:34px;height:34px;border-radius:7px;background:var(--ai);color:var(--ai-ink);overflow:hidden}.brand-mark svg{display:block;width:100%;height:100%}.brand-text{font-family:var(--serif);font-weight:700;font-size:1.2rem;line-height:1.2;letter-spacing:.04em}.brand-text small{display:block;font-family:var(--sans);font-size:.68rem;font-weight:400;color:var(--sumi-3);letter-spacing:.06em}.header-search{flex:1;max-width:340px;margin-left:auto;display:flex;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:0 4px 0 14px}.header-search:focus-within{border-color:var(--ai);box-shadow:0 0 0 3px var(--ai-soft)}.header-search input{flex:1;min-width:0;border:0;background:transparent;padding:8px 0;font-size:.95rem;outline:none}.header-search button{display:grid;place-items:center;width:36px;height:36px;border:0;background:transparent;color:var(--sumi-2);border-radius:999px;cursor:pointer}.header-search button:hover{background:var(--ai-soft);color:var(--ai)}nav.main{display:flex;gap:4px;font-size:.9rem;margin-left:auto}.header-search+nav.main{margin-left:0}nav.main a{color:var(--sumi-2);padding:10px;border-radius:var(--radius);white-space:nowrap}nav.main a:hover{background:var(--ai-soft);color:var(--ai);text-decoration:none}.m-search{display:none;place-items:center;flex-shrink:0;width:44px;height:44px;margin-left:auto;border-radius:999px;color:var(--sumi-2)}.m-search:hover{background:var(--ai-soft);color:var(--ai)}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;margin:0;padding:12px 0 0;font-size:.8rem;color:var(--sumi-3)}.breadcrumbs li{display:flex;align-items:center;gap:4px;min-width:0}.breadcrumbs li+li:before{content:"›";color:var(--sumi-3)}.breadcrumbs [aria-current]{color:var(--sumi-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:28em}.hero{background:var(--paper);border-bottom:1px solid var(--line);padding:28px 0 22px}.hero h1{font-family:var(--serif);font-size:clamp(1.45rem,1.1rem + 1.6vw,2.05rem);line-height:1.45;margin:0 0 8px;font-weight:700}.hero .sub{margin:0 0 18px;color:var(--sumi-2);font-size:.95rem;max-width:46em}.searchbox{max-width:760px}.search-label{display:block;font-size:.82rem;font-weight:700;color:var(--sumi-2);margin-bottom:6px}.search-row{position:relative;display:flex;align-items:center;gap:8px;background:var(--white);border:2px solid var(--ai);border-radius:10px;padding:4px 4px 4px 12px;box-shadow:var(--shadow)}.search-row:focus-within{box-shadow:0 0 0 4px var(--ai-soft)}.search-icon{color:var(--sumi-3);flex-shrink:0}.search-row input{flex:1;min-width:0;border:0;outline:none;background:transparent;padding:10px 4px;font-size:1.05rem}.search-row input::placeholder{color:var(--sumi-3)}.search-row input::-webkit-search-cancel-button{cursor:pointer}.kbd-hint{border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 7px;font-size:.78rem;color:var(--sumi-3);background:var(--kinari)}.search-row:focus-within .kbd-hint{display:none}.search-row button{min-height:44px;padding:0 22px;background:var(--ai);color:var(--ai-ink);border:0;border-radius:7px;font-weight:700;cursor:pointer;transition:background-color .15s}.search-row button:hover{background:var(--ai-dark)}.popular{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;margin-top:12px}.popular-cap{font-size:.78rem;color:var(--sumi-3);margin-right:2px}.kw-chip{display:inline-flex;align-items:center;min-height:32px;padding:2px 12px;border-radius:999px;background:var(--ai-soft);color:var(--ai-dark);font-size:.84rem;border:1px solid transparent}.kw-chip:hover{border-color:var(--ai);text-decoration:none}.stats{display:flex;flex-wrap:wrap;gap:6px 22px;margin:18px 0 0;font-size:.82rem;color:var(--sumi-3)}.stats div{display:flex;gap:6px;align-items:baseline}.stats dt{margin:0}.stats dd{margin:0;color:var(--sumi);font-weight:700}.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start;padding-top:20px}.toolbar{display:flex;flex-direction:column;gap:10px;padding:14px 16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.filter-row,.sort-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.filter-cap{font-size:.78rem;font-weight:700;color:var(--sumi-3);min-width:4.5em}.chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;border:1px solid var(--line);background:var(--white);border-radius:999px;padding:4px 14px;font-size:.85rem;cursor:pointer;color:var(--sumi-2);transition:background-color .15s,border-color .15s,color .15s}.chip:hover{border-color:var(--ai);color:var(--ai)}.chip[aria-pressed=true]{background:var(--ai);border-color:var(--ai);color:var(--ai-ink)}.chip-n{font-size:.72rem;opacity:.75;font-variant-numeric:tabular-nums}.segmented{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--white)}.segmented button{min-height:32px;padding:2px 14px;border:0;background:transparent;border-radius:999px;font-size:.85rem;color:var(--sumi-2);cursor:pointer}.segmented button[aria-checked=true]{background:var(--sumi);color:var(--paper);font-weight:700}.section-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px;border-bottom:2px solid var(--sumi);padding-bottom:6px;margin:28px 0 0}.section-head h2{font-family:var(--serif);font-size:1.25rem;margin:0}.count-note{color:var(--sumi-3);font-size:.82rem;margin:0 0 0 auto;font-variant-numeric:tabular-nums}.text-btn{background:none;border:0;color:var(--ai);cursor:pointer;font-size:.85rem;padding:8px 4px;min-height:36px}.text-btn:hover{text-decoration:underline}.label{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.06em;padding:1px 8px;border-radius:3px;vertical-align:middle;line-height:1.6}.label-today{background:var(--ai);color:var(--ai-ink)}.label-hot{border:1px solid var(--ai);color:var(--ai)}.card-list{display:flex;flex-direction:column;border:1px solid var(--line-soft);border-top:0;background:var(--white)}.paper-card{display:flex;gap:14px;padding:16px 16px 14px;border-top:1px solid var(--line-soft);transition:background-color .15s}.paper-card:hover{background:color-mix(in srgb,var(--ai-soft) 35%,var(--white))}.attn{flex:0 0 56px;display:flex;flex-direction:column;align-items:center;gap:3px;border:1px solid var(--line);border-radius:var(--radius);padding:8px 2px 6px;height:fit-content;background:var(--kinari)}.attn .num{font-size:1.3rem;font-weight:700;line-height:1.1;color:var(--ai);font-family:var(--serif);font-variant-numeric:tabular-nums}.attn .cap{font-size:.62rem;color:var(--sumi-3);letter-spacing:.06em}.meter{display:inline-flex;gap:2px}.meter i{display:block;width:6px;height:6px;border-radius:50%;background:var(--line)}.meter i.on{background:var(--ai)}.meter-inline{vertical-align:middle;margin-right:4px}.paper-main{min-width:0;flex:1}.card-top{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:0 0 4px;font-size:.78rem}.cat-badge{display:inline-flex;align-items:center;min-height:24px;border:1px solid var(--ai);color:var(--ai);font-weight:700;font-size:.74rem;padding:0 8px;border-radius:4px;background:var(--white)}.cat-badge:hover{background:var(--ai);color:var(--ai-ink);text-decoration:none}.read-time,.field-text{color:var(--sumi-3)}.card-title{font-family:var(--serif);font-size:1.12rem;line-height:1.55;margin:0 0 2px;font-weight:700}.card-title a{color:var(--sumi)}.card-title a:hover{color:var(--ai)}.paper-title-en{font-size:.8rem;color:var(--sumi-3);margin:0 0 6px;line-height:1.5;letter-spacing:0}.paper-title-en.en-lg{font-size:.92rem}.tldr-line{font-size:.92rem;color:var(--sumi-2);margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.tldr-tag{display:inline-block;font-size:.68rem;font-weight:700;color:var(--ai-dark);background:var(--ai-soft);border-radius:3px;padding:0 6px;margin-right:6px;vertical-align:.1em}.tags{list-style:none;display:flex;flex-wrap:wrap;gap:4px 10px;margin:0 0 8px;padding:0;font-size:.8rem}.tags a{color:var(--sumi-3)}.tags a:hover{color:var(--ai)}.tags-lg{gap:8px}.tags-lg a{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--sumi-2)}.tags-lg a:hover{border-color:var(--ai);text-decoration:none}.card-foot{display:flex;flex-wrap:wrap;align-items:center;gap:2px 8px;margin:0;font-size:.8rem;color:var(--sumi-3)}.card-foot .sep{opacity:.6}.card-foot .authors{min-width:0}.sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:calc(var(--header-h) + 16px)}.side-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.side-h{font-size:.86rem;font-weight:700;margin:0 0 10px;padding-bottom:6px;border-bottom:1px solid var(--line);letter-spacing:.06em;font-family:var(--sans)}.rank{list-style:none;margin:0;padding:0;counter-reset:none}.rank li{display:flex;gap:10px;padding:8px 0;border-bottom:1px dotted var(--line);font-size:.88rem;line-height:1.55}.rank li:last-child{border-bottom:0}.rank-no{flex:0 0 22px;font-family:var(--serif);font-weight:700;font-size:1.1rem;color:var(--ai);line-height:1.3;font-variant-numeric:tabular-nums}.rank li:nth-child(n+4) .rank-no{color:var(--sumi-3)}.rank a{color:var(--sumi)}.rank a:hover{color:var(--ai)}.rank-meta{display:block;font-size:.74rem;color:var(--sumi-3)}.cat-list,.date-list{list-style:none;margin:0;padding:0;font-size:.88rem}.cat-list a,.date-list a{display:flex;justify-content:space-between;align-items:center;min-height:40px;padding:4px 6px;border-radius:4px;color:var(--sumi)}.cat-list a:hover,.date-list a:hover{background:var(--ai-soft);text-decoration:none}.cat-list .tnum,.date-list .tnum{font-size:.78rem;color:var(--sumi-3)}.howto ol{margin:0;padding-left:1.2em;font-size:.84rem;color:var(--sumi-2)}.howto li{margin:4px 0}.side-note{font-size:.76rem;color:var(--sumi-3);margin:8px 0 0}.news-sec{margin-top:12px}.news-item{font-size:.9rem;padding:12px 0;border-bottom:1px dotted var(--line)}.news-item a{font-weight:700}.news-item .src{color:var(--sumi-3);font-size:.76rem}.news-item p{margin:4px 0 0;color:var(--sumi-2)}.faq details{border-bottom:1px solid var(--line);background:var(--paper)}.faq summary{cursor:pointer;list-style:none;padding:14px 40px 14px 16px;font-weight:700;position:relative;min-height:44px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:16px;top:12px;font-size:1.2rem;color:var(--ai)}.faq details[open] summary:after{content:"−"}.faq details p{margin:0;padding:0 16px 16px;color:var(--sumi-2);font-size:.93rem}.faq-more{font-size:.88rem}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}article.paper{max-width:760px}.paper-head{padding:18px 0 4px}article.paper h1{font-family:var(--serif);font-size:clamp(1.4rem,1.1rem + 1.3vw,1.9rem);line-height:1.5;margin:6px 0}.byline{font-size:.86rem;color:var(--sumi-2);margin:8px 0 14px}.actions{display:flex;flex-wrap:wrap;gap:8px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;background:var(--ai);color:var(--ai-ink);padding:0 20px;border-radius:var(--radius);font-weight:700;font-size:.92rem;border:1px solid var(--ai);transition:background-color .15s}.btn:hover{background:var(--ai-dark);text-decoration:none}.btn-ghost{background:var(--white);color:var(--ai)}.btn-ghost:hover{background:var(--ai-soft)}.btn[aria-disabled=true]{opacity:.65;cursor:not-allowed}.tldr{border-left:4px solid var(--ai);background:var(--ai-soft);padding:14px 18px;margin:22px 0;border-radius:0 var(--radius) var(--radius) 0}.tldr .tldr-cap{font-family:var(--sans);font-weight:700;color:var(--ai-dark);font-size:.8rem;letter-spacing:.08em;margin:0;border:0;padding:0}.tldr p{margin:4px 0 0;font-size:1.05rem;line-height:1.85}.paper-sec h2{font-family:var(--serif);font-size:1.25rem;border-bottom:1px solid var(--line);padding-bottom:6px;margin:34px 0 10px}.paper-sec h2 .q{font-family:var(--sans);font-size:.8rem;font-weight:400;color:var(--sumi-3);margin-left:10px;letter-spacing:0}.paper-sec>p{font-size:1rem;line-height:1.95;margin:0}.paper-sec>p.more-link{font-size:.9rem;margin-top:14px}.paper-sec .h-small,.share .h-small{font-size:1rem}.note-box{margin:28px 0 0;padding:12px 16px;border:1px dashed var(--line);border-radius:var(--radius);font-size:.85rem;color:var(--sumi-3)}.note-box p{margin:0}.share{margin:28px 0 0}.share .h-small{font-family:var(--serif);border-bottom:1px solid var(--line);padding-bottom:6px;margin:0 0 12px}.share-row{display:flex;flex-wrap:wrap;gap:8px}.share-btn{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--sumi-2);font-size:.86rem;cursor:pointer}.share-btn:hover{border-color:var(--ai);color:var(--ai);text-decoration:none}.cite{margin-top:12px}.cite summary{cursor:pointer;font-size:.88rem;color:var(--ai);min-height:44px;display:flex;align-items:center}.cite pre{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:12px;overflow-x:auto;font-size:.78rem;line-height:1.6;margin:0 0 8px}.consult{border:1px solid var(--line);background:var(--paper);padding:16px 18px;margin:28px 0 0;border-radius:var(--radius)}.consult p{margin:0 0 10px;font-size:.92rem}.consult{border-color:var(--ai);border-left-width:4px}.consult-note{font-size:.76rem!important;color:var(--sumi-3);margin:8px 0 0!important}.consult .consult-h{font-family:var(--serif);font-weight:700;font-size:1.05rem;color:var(--sumi);margin-bottom:4px}.more-link{font-size:.9rem;margin:14px 0 0}.toc ol{margin:0;padding-left:1.3em;font-size:.88rem}.toc li{margin:2px 0}.toc a{display:inline-block;padding:3px 0;color:var(--sumi-2)}.toc a:hover{color:var(--ai)}.toc-inline{display:none;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);padding:0 16px}.toc-inline summary{cursor:pointer;font-weight:700;min-height:44px;display:flex;align-items:center;font-size:.9rem}.toc-inline ol{padding-bottom:12px}.detail-side{padding-top:18px}.side-sticky{position:sticky;top:calc(var(--header-h) + 16px);display:flex;flex-direction:column;gap:16px}.facts{display:grid;grid-template-columns:5.5em 1fr;gap:6px 10px;margin:0;font-size:.84rem}.facts dt{color:var(--sumi-3)}.facts dd{margin:0;min-width:0}.page-head{padding:20px 0 6px}.page-head h1{font-family:var(--serif);font-size:clamp(1.4rem,1.1rem + 1.3vw,1.9rem);margin:0 0 6px;line-height:1.45}.eyebrow{font-size:.78rem;color:var(--sumi-3);margin:0}.lede{color:var(--sumi-2);margin:0 0 8px;max-width:46em}.page-head .tags{margin-top:10px}.page-head+.card-list{border-top:1px solid var(--line-soft);margin-top:14px}.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:12px}.cat-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;display:flex;flex-direction:column}.cat-card h2{font-family:var(--serif);font-size:1.15rem;margin:0 0 4px;display:flex;align-items:baseline;gap:8px}.cat-card h2 a{color:var(--sumi)}.cat-card p{font-size:.86rem;margin:0 0 8px}.cat-card ul{margin:0 0 10px;padding-left:1.1em;font-size:.88rem}.cat-card li{margin:4px 0}.cat-card .more-link{margin-top:auto;font-size:.86rem}.prose{max-width:760px;padding-top:20px}.prose h1{font-family:var(--serif);font-size:clamp(1.4rem,1.1rem + 1.3vw,1.9rem);line-height:1.45;margin:0 0 10px}.prose h2{font-family:var(--serif);font-size:1.25rem;border-bottom:1px solid var(--line);padding-bottom:6px;margin:32px 0 10px}.prose h3{font-size:1rem;margin:20px 0 4px}.prose p,.prose li{font-size:.98rem}.prose ul{padding-left:1.3em}.prose .searchbox{margin:18px 0}.empty{padding:20px;background:var(--white);border:1px solid var(--line);font-size:.92rem}.empty p{margin:0 0 8px}footer.site{border-top:1px solid var(--line);margin-top:48px;padding:28px 0 36px;background:var(--paper);font-size:.86rem;color:var(--sumi-2)}footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:28px}footer.site p{margin:0 0 8px}.footer-brand{font-family:var(--serif);font-weight:700;font-size:1.05rem;color:var(--sumi)}.footer-h{margin:0 0 8px;font-size:.82rem;letter-spacing:.06em;color:var(--sumi);font-family:var(--sans)}footer.site ul{list-style:none;margin:0;padding:0}footer.site li a{display:inline-block;padding:3px 0}.footer-links{display:flex;gap:14px}.copyright{margin-top:20px!important;color:var(--sumi-3);font-size:.76rem}nav.main a[aria-current=page]{color:var(--ai);font-weight:700;box-shadow:inset 0 -2px 0 var(--ai);border-radius:0}.stats dd a{color:inherit}.section-head-first{margin-top:4px}.section-head .count-note{text-decoration:none}a.count-note:hover{color:var(--ai);text-decoration:underline}.h-link{color:inherit}.home-more{display:flex;flex-direction:column;align-items:flex-start;gap:14px;margin-top:16px}.prev-days{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center}.card-list-top{border-top:1px solid var(--line-soft);margin-top:12px}.pager{display:flex;justify-content:space-between;gap:12px;margin-top:18px;font-size:.9rem}.pager a{display:inline-flex;align-items:center;min-height:44px}.date-list a[aria-current=page]{background:var(--ai-soft);font-weight:700}.side-news{list-style:none;margin:0;padding:0;font-size:.86rem;line-height:1.55}.side-news li{padding:8px 0;border-bottom:1px dotted var(--line)}.side-news li:last-child{border-bottom:0}.side-news a{color:var(--sumi)}.side-news a:hover{color:var(--ai)}.narrow{max-width:800px}.news-title{font-size:1.05rem;line-height:1.6;margin:0 0 2px;font-family:var(--serif)}.news-item .paper-title-en{margin:0}.prose .faq{margin-top:8px}.prose .faq details p{font-size:.93rem}.page-head .searchbox{margin-top:12px}.label-classic{background:var(--sumi);color:var(--paper)}a.label-classic:hover{text-decoration:none;opacity:.85}.home-classics{margin-top:12px}.classics-lede{margin:10px 0 0;font-size:.86rem}.classic-grid{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}.classic-grid a{display:flex;flex-direction:column;gap:2px;height:100%;padding:12px 14px;background:var(--white);border:1px solid var(--line-soft);border-radius:var(--radius);color:var(--sumi)}.classic-grid a:hover{border-color:var(--ai);text-decoration:none}.classic-year{font-family:var(--serif);font-weight:700;color:var(--ai);font-size:.9rem}.classic-title{font-family:var(--serif);font-weight:700;line-height:1.5;font-size:.95rem}.classic-cat{font-size:.74rem;color:var(--sumi-3);margin-top:auto;padding-top:4px}.theme-btn{display:grid;place-items:center;flex-shrink:0;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--sumi-2);cursor:pointer}.theme-btn:hover{border-color:var(--ai);color:var(--ai)}.theme-btn svg{display:none}.theme-btn[data-mode=system] .i-system,.theme-btn:not([data-mode]) .i-system,.theme-btn[data-mode=light] .i-light,.theme-btn[data-mode=dark] .i-dark{display:block}nav.main+.theme-btn{margin-left:6px}.theme-seg{margin-top:14px}.footer-links{display:flex;flex-wrap:wrap;gap:4px 16px}.theme-seg .footer-h{display:block;margin-bottom:6px}@media(max-width:960px){.layout,.detail-layout{grid-template-columns:minmax(0,1fr)}.sidebar{position:static}.detail-side{padding-top:0}.detail-side .toc{display:none}.side-sticky{position:static}.toc-inline{display:block}footer.site .cols{grid-template-columns:1fr}}@media(max-width:720px){.header-search{display:none}.m-search{display:grid}.m-search+nav.main{margin-left:0}nav.main{gap:0;font-size:.84rem}nav.main a{padding:10px 8px}.brand-text small{display:none}}@media(max-width:640px){:root{--header-h:54px}.sp-only{display:inline}.pc-only{display:none}.brand-text{font-size:1.05rem}.brand-mark{width:30px;height:30px}:root{--header-h:98px}.header-row{flex-wrap:wrap;row-gap:0;min-height:0;padding-top:8px}.brand{min-height:44px}.theme-btn{width:36px;height:36px}nav.main+.theme-btn,.theme-btn{margin-left:auto}.m-search~.theme-btn{margin-left:4px}nav.main{order:3;width:100%;margin:0 -14px;padding:0 8px;width:calc(100% + 28px);overflow-x:auto;scrollbar-width:none;border-top:1px solid var(--line-soft);gap:0}nav.main::-webkit-scrollbar{display:none}nav.main a{flex-shrink:0;padding:10px;font-size:.88rem}.hero{padding:20px 0 16px}.search-row input{font-size:16px}.search-row button{padding:0 16px}.kbd-hint{display:none}.stats{gap:4px 16px}.paper-card{gap:10px;padding:14px 12px}.attn{flex-basis:44px;padding:6px 1px 4px}.attn .num{font-size:1.1rem}.meter i{width:5px;height:5px}.card-title{font-size:1.04rem}.filter-cap{min-width:auto;width:100%}.popular,.filter-row{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-right:-14px;padding-right:14px;-webkit-overflow-scrolling:touch}.popular::-webkit-scrollbar,.filter-row::-webkit-scrollbar{display:none}.popular>*,.filter-row>*{flex-shrink:0}.filter-cap{width:auto}.toolbar{padding:12px}.wrap{padding:0 14px}}@media(hover:none){.paper-card:hover{background:transparent}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}@media(max-width:380px){.header-row{gap:4px}.brand{gap:7px}.brand-text{font-size:.98rem;letter-spacing:.02em}nav.main{padding:0 4px}nav.main a{padding:10px 5px;font-size:.82rem}}