:root{--bg:#ffffff;--bg-alt:#f6f6f7;--bg-soft:#f6f6f7;--bg-mute:#f1f1f2;--bg-elv:#ffffff;--divider:#e2e2e3;--gutter:#e2e2e3;--t1:rgba(60,60,67,1);--t2:rgba(60,60,67,.78);--t3:rgba(60,60,67,.56);--brand-1:#3451b2;--brand-2:#3a5ccc;--brand-3:#5672cd;--brand-soft:rgba(100,108,255,.14);--green-1:#18794e;--green-soft:rgba(16,185,129,.14);--yellow-1:#915930;--yellow-soft:rgba(234,179,8,.14);--red-1:#b8272c;--red-soft:rgba(244,63,94,.14);--gray-1:#565a5f;--gray-soft:rgba(142,150,170,.14);--mark:rgba(234,179,8,.32);--shadow:0 1px 2px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.06);--font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;--mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;--nav-h:64px;--side-w:272px;color-scheme:light;}html.dark{--bg:#1b1b1f;--bg-alt:#161618;--bg-soft:#202127;--bg-mute:#2b2b2f;--bg-elv:#202127;--divider:#2e2e32;--gutter:#000000;--t1:rgba(255,255,245,.86);--t2:rgba(235,235,245,.6);--t3:rgba(235,235,245,.38);--brand-1:#a8b1ff;--brand-2:#5c73e7;--brand-3:#3e63dd;--brand-soft:rgba(100,108,255,.16);--green-1:#3dd68c;--green-soft:rgba(16,185,129,.16);--yellow-1:#f9b44e;--yellow-soft:rgba(234,179,8,.16);--red-1:#f66f81;--red-soft:rgba(244,63,94,.16);--gray-1:#a4a8ae;--gray-soft:rgba(142,150,170,.16);--mark:rgba(234,179,8,.28);--shadow:0 1px 2px rgba(0,0,0,.3);color-scheme:dark;}*{box-sizing:border-box}html{scroll-padding-top:calc(var(--nav-h) + 16px)}html{scrollbar-gutter:stable}body{margin:0;background:var(--bg);color:var(--t1);font:14px/1.7 var(--font);-webkit-font-smoothing:antialiased}a{color:var(--brand-1);text-decoration:none;transition:color .25s}a:hover{color:var(--brand-2);text-decoration:underline;text-underline-offset:2px}button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:4px}mark{background:var(--mark);color:inherit;border-radius:2px;padding:0 1px}.xref{color:var(--brand-1);cursor:pointer;border-bottom:1px dashed currentColor}.xref:hover{color:var(--brand-2);border-bottom-style:solid}#xref-pop{position:absolute;z-index:80;width:min(430px,calc(100vw - 28px));background:var(--bg-elv);border:1px solid var(--divider);border-radius:10px;box-shadow:var(--shadow);padding:11px 13px;font-size:13.5px;line-height:1.75}#xref-pop .xp-h{display:flex;align-items:flex-start;gap:8px;margin-bottom:7px}#xref-pop .xp-h b{flex:1;font-weight:600;line-height:1.5}#xref-pop .xp-h button{flex:none;border:1px solid var(--divider);background:var(--bg-soft);color:inherit;border-radius:6px;padding:2px 9px;font-size:12px;cursor:pointer;font-family:inherit;white-space:nowrap}#xref-pop .xp-h button:hover{border-color:var(--brand-1);color:var(--brand-1)}#xref-pop .xp-s{opacity:.62;font-size:12px;margin-bottom:5px}#xref-pop .xp-b{max-height:210px;overflow:auto}#xref-pop .xp-b+.xp-b{margin-top:8px;padding-top:8px;border-top:1px solid var(--divider)}.card.flash{animation:xflash 1.8s ease-out}.sec-h.flash{animation:secflash-line 1.8s ease-out}.sec-h.flash h2{animation:secflash-text 1.8s ease-out}@keyframes secflash-line{0%,35%{border-top-color:var(--brand-1)}100%{border-top-color:var(--divider)}}@keyframes secflash-text{0%,35%{color:var(--brand-1)}100%{color:var(--t1)}}@keyframes xflash{0%,35%{background:var(--brand-soft)}100%{background:transparent}}[hidden]{display:none!important}.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:30;background:var(--bg);border-bottom:1px solid var(--divider)}.nav-in{height:100%;display:flex;align-items:center;gap:16px;padding:0 24px}.title{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;color:var(--t1);white-space:nowrap}.title:hover{text-decoration:none;color:var(--t1)}.logo{width:24px;height:24px;border-radius:6px;background:linear-gradient(135deg,var(--brand-3),var(--brand-1));display:grid;place-items:center;color:#fff;font-size:12px;font-weight:700}.logo svg{width:15px;height:15px}.search{flex:1;max-width:520px;margin-left:auto;position:relative}.search input{width:100%;height:40px;padding:0 44px 0 40px;border-radius:8px;border:1px solid transparent;background:var(--bg-alt);color:var(--t1);font:inherit;font-size:14px;transition:border-color .25s,background .25s}.search input:hover{border-color:var(--divider)}.search input:focus{outline:0;border-color:var(--brand-1);background:var(--bg)}.search input::placeholder{color:var(--t3)}.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;fill:none;stroke:var(--t3);stroke-width:2;pointer-events:none}.search kbd{position:absolute;right:10px;top:50%;transform:translateY(-50%);font:500 11px/1 var(--font);color:var(--t3);border:1px solid var(--divider);border-radius:4px;padding:3px 6px;background:var(--bg-elv);pointer-events:none}.nav-r{display:flex;align-items:center;gap:8px}.icon-btn{width:36px;height:36px;border-radius:8px;display:grid;place-items:center;color:var(--t2);transition:background .25s,color .25s}.icon-btn:hover{background:var(--bg-soft);color:var(--t1)}.icon-btn svg{width:20px;height:20px;fill:currentColor}.switch{position:relative;width:40px;height:22px;border-radius:11px;border:1px solid var(--divider);background:var(--bg-mute);transition:border-color .25s,background .25s;flex:none;margin-left:8px}.switch:hover{border-color:var(--t3)}.switch .knob{position:absolute;top:1px;left:1px;width:18px;height:18px;border-radius:50%;background:var(--bg-elv);box-shadow:var(--shadow);transition:transform .25s;display:grid;place-items:center}html.dark .switch .knob{transform:translateX(18px)}.switch svg{width:12px;height:12px;fill:var(--t2)}.switch .sun{display:block}.switch .moon{display:none}html.dark .switch .sun{display:none}html.dark .switch .moon{display:block}.menu-btn{display:none}.sidebar{position:fixed;top:var(--nav-h);bottom:0;left:0;width:var(--side-w);background:var(--bg-alt);padding:32px 32px 96px;overflow-y:auto;overscroll-behavior:contain;z-index:20}.group{padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--divider)}.group:last-of-type{border-bottom:0}.gt{font-size:14px;font-weight:700;color:var(--t1);line-height:24px;margin-bottom:4px;display:flex;justify-content:space-between;align-items:baseline}.gt small{font-weight:400;font-size:12px;color:var(--t3)}.sec-links{display:flex;flex-direction:column}.sec-link{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:4px 0;font-size:14px;font-weight:500;color:var(--t2);line-height:24px;text-align:left;transition:color .25s;border-radius:0}.sec-link:hover{color:var(--t1);text-decoration:none}.sec-link[aria-pressed="true"]{color:var(--brand-1)}.sec-link i{font-style:normal;font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums}.sec-link.all{padding-bottom:8px;margin-bottom:4px;border-bottom:1px solid var(--divider)}.toc-sub{display:flex;flex-direction:column;margin:2px 0 8px;border-left:1px solid var(--divider)}.toc-sub a{display:flex;gap:6px;padding:3px 0 3px 12px;margin-left:-1px;border-left:1px solid transparent;font-size:13px;line-height:20px;color:var(--t2);text-decoration:none;transition:color .2s}.toc-sub a:hover{color:var(--t1);text-decoration:none}.toc-sub a i{font-style:normal;flex:none;min-width:1.5em;color:var(--t3);font-variant-numeric:tabular-nums}.toc-sub a span{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.toc-sub a.on{color:var(--brand-1);border-left-color:var(--brand-1)}.toc-sub a.on i{color:var(--brand-1)}.toc-none{margin:0;padding:3px 0 3px 12px;font-size:13px;line-height:20px;color:var(--t3)}.sec-link i{margin-left:auto}.sec-link .fold{flex:none;align-self:stretch;display:grid;place-items:center;width:24px;margin:-4px -6px -4px 0;border-radius:4px;color:var(--t3);transition:transform .2s,color .2s}.sec-link .fold:hover{color:var(--t1);background:var(--bg-mute)}.sec-link .fold svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;transform:rotate(-90deg);transition:transform .2s}.sec-link.open .fold svg{transform:none}.chips{display:flex;flex-wrap:wrap;gap:6px;padding-top:6px}.chip{border:1px solid var(--divider);background:var(--bg-elv);color:var(--t2);border-radius:999px;padding:3px 11px;font-size:12px;font-weight:500;line-height:18px;transition:all .2s}.chip:hover{border-color:var(--brand-3);color:var(--t1)}.chip[aria-pressed="true"]{background:var(--brand-soft);border-color:var(--brand-1);color:var(--brand-1)}.toggle{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t2);padding:4px 0;cursor:pointer;font-weight:500}.toggle input{accent-color:var(--brand-1);width:15px;height:15px;margin:0}.reset{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:6px 14px;border:1px solid var(--divider);border-radius:20px;font-size:13px;font-weight:500;color:var(--t2);background:var(--bg-elv);transition:all .25s}.reset:hover{border-color:var(--brand-1);color:var(--brand-1)}.doc-links{margin-top:8px;font-size:14px;color:var(--t3)}.doc-links a{margin-right:4px}.hint{font-size:12px;color:var(--t3);line-height:1.6;margin-top:16px}.ad{margin-top:26px}.ad img{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--divider)}.tip-open{margin-top:10px;padding:0;border:0;background:none;font:inherit;font-size:12px;color:var(--t3);cursor:pointer}.tip-open:hover{color:var(--brand-1)}#tip-mask{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:24px}#tip-mask[hidden]{display:none}#tip-box{background:var(--bg);border:1px solid var(--divider);border-radius:12px;box-shadow:var(--shadow);width:min(360px,100%);padding:16px;text-align:center}#tip-box img{display:block;width:100%;height:auto;border-radius:8px}#tip-box p{margin:12px 0;font-size:13px;line-height:1.6;color:var(--t2)}#tip-box button{border:1px solid var(--divider);background:var(--bg-soft);color:var(--t2);border-radius:6px;padding:3px 14px;font-size:13px;cursor:pointer;font-family:inherit}#tip-box button:hover{color:var(--t1);background:var(--bg-mute)}.hint p{margin:4px 0}.backdrop{display:none}.content{padding:calc(var(--nav-h) + 40px) 48px 128px calc(var(--side-w) + 48px)}.doc{max-width:900px;margin:0 auto}.doc-head{margin-bottom:28px}.doc-head h1{font-size:32px;line-height:40px;font-weight:700;letter-spacing:-.02em;margin:0 0 8px}.doc-head p{margin:0;color:var(--t2);font-size:16px}.doc-head .stat{color:var(--t3);font-size:14px;margin-top:6px}.doc-head .stat b{color:var(--brand-1);font-weight:600}.sec-block{margin-top:40px}.sec-h{display:flex;align-items:baseline;gap:12px;padding-top:24px;border-top:1px solid var(--divider);margin-bottom:8px}.sec-h h2{font-size:24px;line-height:32px;font-weight:600;letter-spacing:-.02em;margin:0}.sec-h .shown{margin-left:auto;font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums}.intro{margin:0 0 12px;color:var(--t2);font-size:14px;max-width:72ch}.intro:last-of-type{margin-bottom:20px}.card{background:var(--bg-soft);border:1px solid transparent;border-radius:12px;padding:22px 24px 18px;margin-bottom:16px;transition:border-color .25s,background .25s;content-visibility:auto;contain-intrinsic-size:300px;contain-intrinsic-size:auto 300px}.card:hover{border-color:var(--divider)}.card-h{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px}.card-h h3{margin:0;font-size:18px;line-height:28px;font-weight:600;letter-spacing:-.01em;flex:1;min-width:0;overflow-wrap:anywhere}.card-h .idx{color:var(--t3);font-size:14px;line-height:28px;font-variant-numeric:tabular-nums;min-width:22px}.card-h .anchor{opacity:0;color:var(--brand-1);font-size:16px;line-height:28px;font-weight:500;transition:opacity .2s}.card:hover .anchor,.anchor:focus-visible{opacity:1}.badges{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.badge{display:inline-block;border-radius:10px;padding:0 10px;line-height:20px;font-size:12px;font-weight:600;white-space:nowrap;transform:translateY(0)}.badge.tip{background:var(--brand-soft);color:var(--brand-1)}.badge.A{background:var(--green-soft);color:var(--green-1)}.badge.B{background:var(--yellow-soft);color:var(--yellow-1)}.badge.C{background:var(--gray-soft);color:var(--gray-1)}.badge.danger{background:var(--red-soft);color:var(--red-1)}.badge.warn{background:var(--yellow-soft);color:var(--yellow-1)}.badge.plain{background:var(--gray-soft);color:var(--t2);font-weight:500}.badge.r3{background:var(--brand-soft);color:var(--brand-1)}.badge.r2{background:var(--green-soft);color:var(--green-1)}.badge.r1{background:var(--gray-soft);color:var(--gray-1)}.human{margin:0 0 14px;padding:10px 14px;border-left:2px solid var(--brand-1);background:var(--brand-soft);border-radius:0 6px 6px 0;font-size:15px;line-height:1.75;color:var(--t1);overflow-wrap:anywhere}.rows{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;font-size:14px;line-height:1.75}.rows .k{color:var(--t3);font-weight:500;font-size:13px;line-height:1.75;padding-top:1px}.rows .v{color:var(--t1);min-width:0;overflow-wrap:anywhere}.rows .v.note{color:var(--t2)}.card.lite .rows .k:nth-child(n+3),.card.lite .rows .gain,.card.lite .rows .note,.card.lite .src{display:none}.rows .v ul.chunks{margin:0;padding:0;list-style:none}.rows .v ul.chunks li{position:relative;padding-left:14px;margin-bottom:6px}.rows .v ul.chunks li:last-child{margin-bottom:0}.rows .v ul.chunks li::before{content:"";position:absolute;left:2px;top:.75em;width:4px;height:4px;border-radius:50%;background:var(--t3)}.rows .v strong,.human strong,.intro strong,.src .body strong{font-weight:600;color:var(--t1)}.src{margin-top:14px;border-top:1px solid var(--divider);padding-top:10px}.src summary{list-style:none;cursor:pointer;font-size:13px;font-weight:500;color:var(--t2);display:flex;align-items:center;gap:6px;user-select:none}.src summary::-webkit-details-marker{display:none}.src summary::before{content:"";width:6px;height:6px;border-right:1.5px solid var(--t3);border-bottom:1.5px solid var(--t3);transform:rotate(-45deg);transition:transform .2s;margin-right:2px}.src[open] summary::before{transform:rotate(45deg)}.src .body{padding-top:8px;font-size:13px;line-height:1.75;color:var(--t2);overflow-wrap:anywhere}.src summary .cnt{color:var(--t3);font-weight:400}.src .body ol{margin:0;padding:0;list-style:none;counter-reset:s}.src .body li{counter-increment:s;position:relative;padding-left:20px;margin-bottom:8px}.src .body li:last-child{margin-bottom:0}.src .body li::before{content:counter(s) ".";position:absolute;left:0;top:0;font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums}.src .body a.url{display:block;font-size:12px;color:var(--t3)}.src .body a.url:hover{color:var(--brand-1)}abbr.term{text-decoration:none;border-bottom:1px dotted var(--t3);cursor:help}abbr.term:hover{border-bottom-color:var(--brand-1);color:var(--brand-1)}.pop{position:absolute;z-index:40;background:var(--bg-elv);border:1px solid var(--divider);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.14);padding:10px 12px;font-size:13px;line-height:1.6;color:var(--t2)}.pop b{display:block;color:var(--t1);font-weight:600;margin-bottom:2px}#doc-mask{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:24px}#doc-mask[hidden]{display:none}#doc-modal{background:var(--bg);border:1px solid var(--divider);border-radius:12px;box-shadow:var(--shadow);width:min(1000px,100%);max-height:100%;display:flex;flex-direction:column;overflow:hidden}.dm-h{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--divider);flex:none}.dm-h b{font-size:15px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dm-h a,.dm-h button{flex:none;border:1px solid var(--divider);background:var(--bg-soft);color:var(--t2);border-radius:6px;padding:3px 10px;font-size:12px;cursor:pointer;font-family:inherit;text-decoration:none;line-height:1.6}.dm-h a:hover,.dm-h button:hover{color:var(--t1);background:var(--bg-mute)}.dm-b{display:flex;min-height:0;flex:1}.dm-toc{width:208px;flex:none;border-right:1px solid var(--divider);overflow-y:auto;overscroll-behavior:contain;padding:12px 8px 28px;background:var(--bg-alt)}.dm-toc a{display:block;padding:5px 10px;border-radius:6px;color:var(--t2);font-size:13px;line-height:1.5;text-decoration:none}.dm-toc a:hover{background:var(--bg-mute);color:var(--t1)}.dm-toc a.lv3{padding-left:22px;font-size:12.5px;color:var(--t3)}.dm-toc a.on{color:var(--brand-1);background:var(--bg-mute);font-weight:500}.dm-doc{position:relative;flex:1;min-width:0;overflow-y:auto;overscroll-behavior:contain;padding:20px 30px 64px;line-height:1.8}.dm-doc h2{font-size:17px;font-weight:600;margin:26px 0 10px;padding-top:6px;border-top:1px solid var(--divider)}.dm-doc h2:first-child{border-top:0;margin-top:4px}.dm-doc h3{font-size:14.5px;font-weight:600;margin:18px 0 8px;color:var(--t1)}.dm-doc p{margin:0 0 12px;color:var(--t2)}.dm-doc ul,.dm-doc ol{margin:0 0 12px;padding-left:22px;color:var(--t2)}.dm-doc li{margin:4px 0}.dm-doc strong{color:var(--t1);font-weight:600}.dm-doc code{font-family:var(--mono);font-size:12.5px;background:var(--bg-mute);padding:2px 5px;border-radius:4px}.dm-doc a{color:var(--brand-1);text-decoration:none;word-break:break-all}.dm-doc a:hover{text-decoration:underline}.dm-tw{overflow-x:auto;margin:0 0 14px}.dm-doc table{border-collapse:collapse;font-size:13px;min-width:100%}.dm-doc th,.dm-doc td{border:1px solid var(--divider);padding:7px 10px;text-align:left;vertical-align:top;color:var(--t2)}.dm-doc th{background:var(--bg-soft);color:var(--t1);font-weight:600;white-space:nowrap}.dm-load{color:var(--t3);padding:24px 30px}@media (max-width:820px){#doc-mask{padding:0}#doc-modal{border-radius:0;border:0;height:100%}.dm-toc{display:none}.dm-doc{padding:16px 18px 56px}}.gloss{margin-top:16px;border:1px solid var(--divider);border-radius:8px;padding:0 16px;font-size:13px;color:var(--t2)}.gloss summary{cursor:pointer;padding:10px 0;font-weight:500;color:var(--t2);list-style:none;display:flex;align-items:center;gap:6px}.gloss summary::-webkit-details-marker{display:none}.gloss summary::before{content:"";width:6px;height:6px;border-right:1.5px solid var(--t3);border-bottom:1.5px solid var(--t3);transform:rotate(-45deg);transition:transform .2s;margin-right:2px}.gloss[open] summary::before{transform:rotate(45deg)}.gloss p{margin:0 0 8px}.gloss dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0 0 14px}.gloss dt{font-weight:600;color:var(--t1);white-space:nowrap}.gloss dd{margin:0}@media (max-width:960px){.gloss dl{grid-template-columns:1fr;gap:2px}.gloss dd{margin-bottom:8px}}.empty{border:1px dashed var(--divider);border-radius:12px;padding:40px 24px;text-align:center;color:var(--t2);margin-top:24px}.empty button{margin-top:12px;padding:7px 16px;border:1px solid var(--divider);border-radius:20px;font-weight:500;background:var(--bg-elv)}.empty button:hover{border-color:var(--brand-1);color:var(--brand-1)}.status{color:var(--t3);padding:40px 0;text-align:center}.status code{font-family:var(--mono);font-size:13px;background:var(--bg-mute);padding:2px 6px;border-radius:4px}.status .bar{max-width:260px;height:3px;margin:14px auto 0;border-radius:2px;background:var(--bg-mute);overflow:hidden}.status .bar i{display:block;height:100%;width:0;border-radius:2px;background:var(--brand-1);transition:width .18s ease-out}.status button{margin-top:14px;border:1px solid var(--divider);background:var(--bg-soft);color:var(--t1);border-radius:6px;padding:6px 16px;font:inherit;cursor:pointer}.status button:hover{border-color:var(--brand-1);color:var(--brand-1)}.foot{margin-top:64px;padding-top:24px;border-top:1px solid var(--divider);color:var(--t3);font-size:13px;line-height:1.7}@media (max-width:960px){:root{--nav-h:56px}.nav-in{padding:0 16px;gap:10px}.title span{display:none}.search{max-width:none}.search kbd{display:none}.menu-btn{display:grid}.sidebar{transform:translateX(-100%);transition:transform .25s;box-shadow:none;padding:24px 24px 96px;width:min(var(--side-w),86vw)}.sidebar.open{transform:none;box-shadow:0 8px 24px rgba(0,0,0,.2)}.backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:15;opacity:0;pointer-events:none;transition:opacity .25s}.backdrop.on{opacity:1;pointer-events:auto}.content{padding:calc(var(--nav-h) + 24px) 20px 96px}.doc-head h1{font-size:26px;line-height:34px}.card{padding:18px 16px 14px;border-radius:10px}.card-h h3{font-size:16px;line-height:24px}.card-h .idx{line-height:24px}.human{padding:9px 12px;font-size:14px;margin-bottom:12px}.rows{grid-template-columns:1fr;gap:4px}.rows .k{padding-top:6px}.rows .k:first-child{padding-top:0}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.seo-catalog.js-ready{display:none}.seo-catalog{margin:8px 0 28px;padding:18px 20px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft)}.seo-catalog h2{margin:0 0 10px;font-size:15px;font-weight:600}.seo-catalog ol{margin:0;padding:0;list-style:none;columns:2;column-gap:24px}.seo-catalog li{break-inside:avoid;margin:0 0 8px;font-size:13.5px;line-height:1.55}.seo-catalog li a{color:var(--t1);font-weight:500}.seo-catalog li a:hover{color:var(--brand-1)}.seo-catalog li span{color:var(--t3);font-size:12px;margin-left:6px}.pager{display:flex;justify-content:space-between;gap:16px;margin:40px 0 8px;padding-top:20px;border-top:1px solid var(--divider)}.pager a{color:var(--t2);font-size:14px;font-weight:500}.pager a:hover{color:var(--brand-1)}.pager .next{margin-left:auto;text-align:right}.essay-body{line-height:1.8}.essay-body h2{font-size:20px;font-weight:600;margin:28px 0 10px;padding-top:8px;border-top:1px solid var(--divider)}.essay-body h2:first-child{border-top:0;margin-top:4px}.essay-body h3{font-size:16px;font-weight:600;margin:20px 0 8px}.essay-body p{margin:0 0 12px;color:var(--t2)}.essay-body ul,.essay-body ol{margin:0 0 12px;padding-left:22px;color:var(--t2)}.essay-body li{margin:4px 0}.essay-body table{border-collapse:collapse;font-size:13px;width:100%;margin:0 0 14px}.essay-body th,.essay-body td{border:1px solid var(--divider);padding:7px 10px;text-align:left;vertical-align:top;color:var(--t2)}.essay-body th{background:var(--bg-soft);color:var(--t1);font-weight:600}.crumb{font-size:13px;color:var(--t3);margin:0 0 10px}.crumb a{color:var(--t2)}.sec-page .search kbd{display:none}@media (max-width:960px){.seo-catalog ol{columns:1}}