/* CMOS 背诵手册 — layout-layer palette: metal blue, poly red, diffusion green on cool paper */
@font-face{font-family:"Plex Cond";src:url(../fonts/plex-cond-500.woff2) format("woff2");font-weight:500;font-display:swap;unicode-range:U+0000-00FF,U+2013-2014,U+2018-201D,U+2212}
@font-face{font-family:"Plex Cond";src:url(../fonts/plex-cond-600.woff2) format("woff2");font-weight:600;font-display:swap;unicode-range:U+0000-00FF,U+2013-2014,U+2018-201D,U+2212}
@font-face{font-family:"Plex Cond";src:url(../fonts/plex-cond-700.woff2) format("woff2");font-weight:700;font-display:swap;unicode-range:U+0000-00FF,U+2013-2014,U+2018-201D,U+2212}

:root{
  --ink:#1D2433;
  --ink-2:#4A5366;
  --ink-3:#7A8294;
  --paper:#EEF0F3;
  --sheet:#FFFFFF;
  --rule:#D9DDE4;
  --metal:#2F5FC4;      /* digital chapters */
  --metal-soft:#E4ECFA;
  --poly:#C2433A;       /* analog chapters, mistakes */
  --poly-soft:#FBE9E6;
  --diff:#2E8B57;       /* mastered, correct */
  --diff-soft:#E3F2E9;
  --amber:#C98A16;      /* frequency pips */
  --cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --lat:"Plex Cond","Arial Narrow",var(--cn);
  --r:6px;
  --tb:112px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--tb) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.75 var(--cn);color:var(--ink);background:var(--paper);font-feature-settings:"palt" 0}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--metal);outline-offset:2px;border-radius:3px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:12px;top:-60px;z-index:50;background:var(--ink);color:#fff;padding:8px 14px;border-radius:var(--r)}
.skip:focus{top:12px}
sub,sup{font-size:.72em;line-height:0}
mark{background:#FFE58A;color:inherit;border-radius:2px;padding:0 1px}

/* ---------- masthead ---------- */
.masthead{background:var(--ink);color:#E8ECF4;overflow:hidden;position:relative}
.masthead::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.mast-inner{position:relative;max-width:1180px;margin:0 auto;padding:56px 28px 44px;display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:center}
.masthead h1{margin:0 0 20px;font:700 clamp(46px,7.4vw,92px)/.98 var(--lat);letter-spacing:-.01em;color:#fff}
.masthead h1 br+*{display:none}
.lede{max-width:34em;margin:0 0 10px;font-size:17px;color:#C9D0DD}
.note{margin:0;font-size:13px;color:#8D97AA}
.mast-art{width:260px;justify-self:end}
.inv{width:100%;height:auto;display:block;overflow:visible}
.inv .l{stroke-linejoin:round}
.inv .nwell{fill:rgba(201,138,22,.07);stroke:#C98A16;stroke-width:1.5;stroke-dasharray:6 5}
.inv .pdiff{fill:rgba(194,67,58,.28);stroke:#E07065;stroke-width:1.5}
.inv .ndiff{fill:rgba(46,139,87,.3);stroke:#4FBF83;stroke-width:1.5}
.inv .poly{fill:none;stroke:#E2564B;stroke-width:10;stroke-linecap:square}
.inv .m1{fill:rgba(47,95,196,.55);stroke:#6E97EA;stroke-width:1.5}
.inv .m1w{fill:none;stroke:#6E97EA;stroke-width:9;opacity:.85}
.inv .ct rect{fill:#0E1320;stroke:#E8ECF4;stroke-width:1.5}
.inv .lbl text{font:600 13px var(--lat);fill:#E8ECF4;text-anchor:middle;letter-spacing:.04em}
.inv .lbl .s{font-size:11px;fill:#8D97AA}
/* the one orchestrated moment: layers are laid down in fab order */
@media (prefers-reduced-motion:no-preference){
  .inv .l,.inv .ct rect,.inv .lbl{animation:layer .7s cubic-bezier(.2,.7,.2,1) both}
  .inv .nwell{animation-delay:.05s}
  .inv .pdiff,.inv .ndiff{animation-delay:.3s}
  .inv .poly{stroke-dasharray:420;stroke-dashoffset:420;animation:draw .9s .6s cubic-bezier(.5,0,.2,1) forwards}
  .inv .m1{animation-delay:1.25s}
  .inv .m1w{stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1s 1.4s cubic-bezier(.5,0,.2,1) forwards}
  .inv .ct rect{animation:pop .35s 2.05s both}
  .inv .lbl{animation-delay:2.3s}
  .masthead h1,.lede,.note{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
  .lede{animation-delay:.08s}.note{animation-delay:.16s}
}
@keyframes layer{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{from{opacity:0;transform:scale(.3);transform-box:fill-box;transform-origin:center}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- toolbar ---------- */
.toolbar{position:sticky;top:0;z-index:20;background:rgba(238,240,243,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--rule)}
.tb-inner{max-width:1180px;margin:0 auto;padding:12px 28px 6px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.search{flex:1 1 300px;position:relative;display:block}
.search svg{position:absolute;left:12px;top:50%;width:18px;height:18px;transform:translateY(-50%);fill:none;stroke:var(--ink-3);stroke-width:1.8;stroke-linecap:round}
#q{width:100%;height:42px;padding:0 12px 0 38px;font:inherit;font-size:15px;color:var(--ink);background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);transition:border-color .15s,box-shadow .15s}
#q:focus{outline:none;border-color:var(--metal);box-shadow:0 0 0 3px rgba(47,95,196,.18)}
.filters{display:flex;background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:3px;gap:2px}
.filters button{border:0;background:none;padding:6px 11px;border-radius:4px;font-size:14px;color:var(--ink-2);white-space:nowrap}
.filters button[aria-pressed=true]{background:var(--ink);color:#fff}
.filters button:not([aria-pressed=true]):hover{background:var(--paper)}
.tb-actions{display:flex;gap:8px}
.tb-actions button,.dock button,.drill-actions button,.judge-score button{height:42px;padding:0 16px;border-radius:var(--r);border:1px solid var(--rule);background:var(--sheet);font-size:14px;white-space:nowrap}
button.primary{background:var(--metal);border-color:var(--metal);color:#fff}
button.primary:hover{background:#244FA9}
.mode{display:inline-flex;align-items:center;gap:8px}
.mode .sw{width:30px;height:18px;border-radius:9px;background:var(--rule);position:relative;transition:background .2s}
.mode .sw::after{content:"";position:absolute;left:2px;top:2px;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.25);transition:transform .2s}
.mode[aria-pressed=true] .sw{background:var(--diff)}
.mode[aria-pressed=true] .sw::after{transform:translateX(12px)}
.tb-status{max-width:1180px;margin:0 auto;padding:0 28px 8px;display:flex;gap:16px;font-size:13px;color:var(--ink-3)}
#mastered{margin-left:auto}
.readbar{height:2px;background:transparent}
.readbar i{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--metal)}

/* ---------- layout ---------- */
.layout{max-width:1180px;margin:0 auto;padding:28px 28px 80px;display:grid;grid-template-columns:232px minmax(0,1fr);gap:44px}
main{min-width:0;max-width:780px}
main:focus{outline:none}

.toc{position:sticky;top:calc(var(--tb) + 16px);align-self:start;max-height:calc(100vh - var(--tb) - 32px);overflow:auto;padding-right:4px;scrollbar-width:thin}
.toc-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--ink-3);margin:0 0 8px}
.toc-close{display:none}
.toc ol{list-style:none;margin:0;padding:0}
.toc a{display:grid;grid-template-columns:26px 1fr auto;gap:6px;align-items:baseline;padding:5px 8px;border-radius:4px;text-decoration:none;font-size:14px;line-height:1.45;color:var(--ink-2);border-left:3px solid transparent}
.toc .tn{font:600 13px var(--lat);color:var(--ink-3)}
.toc .tp{font:500 12px var(--lat);color:var(--ink-3)}
.toc a:hover{background:rgba(29,36,51,.05)}
.toc a.on{background:var(--sheet);color:var(--ink);font-weight:600}
.toc .k-digital a.on{border-color:var(--metal)}
.toc .k-analog a.on{border-color:var(--poly)}
.toc .k-judge a.on{border-color:var(--ink)}
.toc li.k-analog:first-of-type,.toc li.k-digital+li.k-analog,.toc li.k-analog+li.k-judge{margin-top:10px}
.toc .tp.done{color:var(--diff)}
.legend{font-size:12px;color:var(--ink-3);margin:14px 8px 0;display:flex;gap:4px 10px;align-items:center;flex-wrap:wrap}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:-6px}
.legend .k-digital{background:var(--metal)}.legend .k-analog{background:var(--poly)}.legend .k-judge{background:var(--ink)}

/* ---------- top 30 ---------- */
.top30{background:var(--sheet);border-radius:var(--r);padding:22px 24px 18px;margin:0 0 8px;border:1px solid var(--rule)}
.top30 h2{margin:0 0 12px;font-size:20px;line-height:1.3}
.top30 small{display:block;font-size:13px;font-weight:400;color:var(--ink-3);margin-top:2px}
.top30 ol{margin:0;padding:0;list-style:none;counter-reset:t;columns:2;column-gap:28px}
.top30 li{counter-increment:t;break-inside:avoid;display:flex;gap:10px;padding:5px 0;border-bottom:1px dashed var(--rule);font-size:15px;line-height:1.5}
.top30 li::before{content:counter(t);font:600 14px/1.6 var(--lat);color:var(--ink-3);min-width:1.4em;text-align:right}
.top30 li:nth-child(-n+10)::before{color:var(--amber)}
.top30 a{text-decoration:none}
.top30 a:hover{color:var(--metal);text-decoration:underline;text-underline-offset:3px}
.top30 li.got a{color:var(--ink-3);text-decoration:line-through;text-decoration-color:var(--diff)}

/* ---------- chapters ---------- */
.chapter{--k:var(--metal);--ks:var(--metal-soft)}
.chapter.k-analog{--k:var(--poly);--ks:var(--poly-soft)}
.chapter.k-judge{--k:var(--ink);--ks:#E6E9EF}
.chapter>h2{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:16px;align-items:end;margin:56px 0 18px;padding-bottom:12px;border-bottom:2px solid var(--k)}
.chapter .cn{grid-row:1/3;font:700 64px/.8 var(--lat);color:var(--k);letter-spacing:-.02em}
.chapter .ct{font-size:24px;line-height:1.25;font-weight:700}
.chapter .ck{font-size:13px;font-weight:400;color:var(--ink-3)}

/* ---------- cards ---------- */
.card{position:relative;background:var(--sheet);border-radius:var(--r);margin:0 0 14px;border:1px solid var(--rule);border-left:4px solid var(--k);transition:border-color .2s,background .2s}
.card-head{padding:16px 20px 0;display:grid;grid-template-columns:1fr auto;gap:2px 12px;align-items:baseline}
.card h3{margin:0;font-size:19px;line-height:1.4}
.card h3 .anchor{text-decoration:none}
.card h3 .anchor:hover{color:var(--k)}
.meta{display:flex;align-items:center;gap:8px}
.card .sub{grid-column:1/-1;margin:2px 0 0;font-size:13px;line-height:1.5;color:var(--ink-3)}
.pips{display:inline-flex;gap:2px}
.pips i{width:6px;height:12px;border-radius:1px;background:var(--rule)}
.pips i.on{background:var(--amber)}
.hot{font:600 12px/1 var(--lat);color:var(--amber);border:1px solid currentColor;border-radius:3px;padding:3px 5px}
.card-body{padding:10px 20px 4px}
.define{margin:0 0 10px;padding:10px 14px;font-weight:600;background:var(--ks);border-radius:4px;line-height:1.7}
.points{margin:0 0 8px;padding-left:1.25em}
.points li{margin:4px 0;padding-left:2px}
.points li::marker{color:var(--k)}
.eq{margin:10px 0;padding:10px 14px;background:#F7F8FA;border-radius:4px;overflow-x:auto;overflow-y:hidden}
.eq-body .katex-display{margin:0;text-align:left}
.eq-body .katex-display>.katex{text-align:left}
.eq-body .katex{font-size:1.12em}
.eq-body img{max-width:100%;height:auto}
.eq figcaption,.fig figcaption{font-size:13px;color:var(--ink-3);margin-top:4px;line-height:1.5}
.fig{margin:12px 0}
.fig-zoom{display:block;width:100%;padding:8px;border:1px solid var(--rule);background:#fff;border-radius:4px;cursor:zoom-in}
.fig-zoom img{display:block;max-width:100%;height:auto;margin:0 auto}
.fig-zoom:hover{border-color:var(--ink-3)}
.pit,.unc{margin:10px 0;padding:8px 12px;border-radius:4px;font-size:15px;line-height:1.65}
.pit{background:var(--poly-soft);color:#7E2A23}
.unc{background:#F4F1E6;color:#5D5235;font-size:14px}
.tag{display:inline-block;font-size:12px;font-weight:700;margin-right:8px;padding:0 6px;border-radius:3px;background:currentColor;line-height:1.7}
.pit .tag{background:var(--poly);color:#fff}
.unc .tag{background:#9C8A55;color:#fff}
.refs{font-size:12.5px;color:var(--ink-3);margin:8px 0 0;line-height:1.6}
.refs span{display:inline-block;margin-right:8px;color:var(--ink-2);font-weight:600}
.card-foot{padding:6px 20px 14px;display:flex}
.master{display:inline-flex;align-items:center;gap:8px;border:0;background:none;padding:4px 0;font-size:14px;color:var(--ink-3)}
.master .box{width:18px;height:18px;border:1.5px solid var(--ink-3);border-radius:4px;display:grid;place-items:center;transition:background .2s,border-color .2s}
.master .box::after{content:"";width:9px;height:5px;border:2px solid #fff;border-top:0;border-right:0;transform:rotate(-45deg) translate(1px,-1px) scale(0);transition:transform .2s cubic-bezier(.3,1.6,.5,1)}
.master:hover{color:var(--ink)}
.card.got{border-left-color:var(--diff)}
.card.got .master{color:var(--diff)}
.card.got .master .box{background:var(--diff);border-color:var(--diff)}
.card.got .master .box::after{transform:rotate(-45deg) translate(1px,-1px) scale(1)}
.card:target{box-shadow:0 0 0 3px rgba(47,95,196,.25)}

/* recall mode: hide the body until the reader asks */
.reveal{display:none}
.recall .card:not(.open) .card-body{display:none}
.recall .card:not(.open) .reveal{display:block;margin:12px 20px 4px;width:calc(100% - 40px);padding:14px;border:1.5px dashed var(--rule);border-radius:4px;background:repeating-linear-gradient(-45deg,#F7F8FA 0 8px,#F1F3F6 8px 16px);color:var(--ink-2);font-size:14px}
.recall .card:not(.open) .reveal:hover{border-color:var(--k);color:var(--ink)}
@media (prefers-reduced-motion:no-preference){.recall .card.open .card-body{animation:unfold .35s ease-out}}
@keyframes unfold{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- judge ---------- */
.judge-score{display:flex;align-items:center;gap:12px;margin:0 0 10px;font-size:14px;color:var(--ink-2)}
.judge-score button{height:34px;padding:0 12px;font-size:13px;margin-left:auto}
.judge{display:grid;grid-template-columns:34px 1fr auto;gap:4px 12px;align-items:start;padding:14px 16px;background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);margin:0 0 8px}
.judge .n{font:600 16px/1.75 var(--lat);color:var(--ink-3)}
.judge .stmt{margin:0}
.pick{display:flex;gap:6px}
.pick button{width:44px;height:36px;border-radius:4px;border:1px solid var(--rule);background:#fff;font-size:15px}
.pick button:hover{border-color:var(--ink-3)}
.pick button:disabled{cursor:default}
.judge.answered .pick button.right{background:var(--diff);border-color:var(--diff);color:#fff}
.judge.answered .pick button.wrong{background:var(--poly);border-color:var(--poly);color:#fff}
.judge.answered .pick button:not(.right):not(.wrong){opacity:.4}
.judge .why{grid-column:2/-1;font-size:15px;color:var(--ink-2)}
.judge .why p{margin:4px 0 0}
.judge .why b{margin-right:8px}
.judge.is-right{border-color:#B7DCC6}
.judge.is-wrong{border-color:#EDC0BB}
.ok{color:var(--diff)}.no{color:var(--poly)}
@media (prefers-reduced-motion:no-preference){
  .judge .why:not([hidden]){animation:unfold .3s ease-out}
  .judge.is-wrong .pick{animation:shake .32s}
}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}

.hide{display:none!important}
.empty{background:var(--sheet);border:1px dashed var(--rule);border-radius:var(--r);padding:28px;text-align:center;color:var(--ink-2);margin:24px 0}
.foot{margin-top:64px;padding-top:20px;border-top:1px solid var(--rule);font-size:13px;color:var(--ink-3)}

/* ---------- dialogs ---------- */
dialog{border:0;padding:0;color:var(--ink);background:var(--sheet);border-radius:10px;box-shadow:0 30px 80px rgba(16,22,36,.35)}
dialog::backdrop{background:rgba(16,22,36,.55);backdrop-filter:blur(2px)}
.x{border:1px solid var(--rule);background:#fff;border-radius:var(--r);height:34px;padding:0 12px;font-size:13px}
.drill{width:min(680px,calc(100vw - 24px));max-height:calc(100dvh - 24px);display:none;flex-direction:column}
.drill[open]{display:flex}
.drill-top{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--rule);font-size:14px;color:var(--ink-3)}
.drill-card{padding:18px 22px;overflow:auto;flex:1}
.drill-card .card{border:0;margin:0;background:none}
.drill-card .card-head,.drill-card .card-body{padding-left:0;padding-right:0}
.drill-card .card h3{font-size:24px}
.drill-card .card-foot,.drill-card .reveal{display:none!important}
.drill-card .chip{grid-column:1/-1;justify-self:start;display:inline-block;font-size:12px;color:var(--k);border:1px solid currentColor;padding:0 6px;border-radius:3px;margin-bottom:6px}
.drill-card .hidden-body .card-body{display:none!important}
.drill-actions{display:flex;gap:8px;justify-content:flex-end;padding:12px 18px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--rule)}
.drill-actions button{min-width:110px}
@media (prefers-reduced-motion:no-preference){
  .drill[open]{animation:dlg .25s cubic-bezier(.2,.8,.2,1)}
  .drill-card.flip{animation:flip .3s ease-out}
}
@keyframes dlg{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
@keyframes flip{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
.zoom{max-width:calc(100vw - 16px);max-height:calc(100dvh - 16px);padding:44px 12px 12px;overflow:auto}
.zoom .x{position:absolute;right:10px;top:8px}
.zoom img{display:block;max-width:min(1100px,calc(100vw - 40px));height:auto;margin:0 auto}
.zoom p{text-align:center;color:var(--ink-2);font-size:14px;margin:8px 0 0}

/* ---------- dock + drawer (mobile) ---------- */
.dock{display:none}
.scrim{position:fixed;inset:0;background:rgba(16,22,36,.45);z-index:39}

@media (max-width:960px){
  :root{--tb:100px}
  .layout{grid-template-columns:minmax(0,1fr);padding:16px 16px 110px;gap:0}
  main{max-width:none}
  .toc{position:fixed;z-index:40;top:0;bottom:0;left:0;width:min(320px,86vw);max-height:none;background:var(--sheet);padding:16px 12px calc(16px + env(safe-area-inset-bottom));transform:translateX(-102%);transition:transform .28s cubic-bezier(.2,.8,.2,1);box-shadow:8px 0 40px rgba(16,22,36,.2)}
  .toc.open{transform:none}
  .toc-close{display:inline-block;border:1px solid var(--rule);background:#fff;border-radius:var(--r);padding:2px 10px;font-size:13px}
  .toc a{padding:9px 8px;font-size:15px}
  .tb-actions{display:none}
  .dock{display:flex;gap:8px;position:fixed;z-index:30;left:0;right:0;bottom:0;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--rule)}
  .dock button{flex:1;height:44px;padding:0 8px}
  .dock button[aria-pressed=true]{background:var(--diff-soft);border-color:var(--diff);color:#1E6B41}
}
@media (max-width:640px){
  :root{--tb:96px}
  body{font-size:15.5px}
  .mast-inner{grid-template-columns:1fr 92px;gap:16px;padding:32px 18px 26px;align-items:start}
  .mast-art{width:92px}
  .inv .lbl{display:none}
  .lede{font-size:15px}
  .tb-inner{padding:10px 12px 6px;gap:8px}
  .search{flex-basis:100%}
  #q{height:40px}
  .filters{width:100%;overflow-x:auto;scrollbar-width:none}
  .filters button{flex:1;padding:6px 8px;font-size:13px}
  .tb-status{padding:0 12px 6px}
  .top30{padding:16px 16px 12px}
  .top30 ol{columns:1}
  .chapter>h2{margin-top:40px;column-gap:12px}
  .chapter .cn{font-size:46px}
  .chapter .ct{font-size:20px}
  .card-head{padding:14px 14px 0;grid-template-columns:1fr}
  .meta{grid-row:2;margin-top:2px}
  .card .sub{grid-row:3}
  .card h3{font-size:18px}
  .card-body{padding:8px 14px 2px}
  .card-foot{padding:4px 14px 12px}
  .recall .card:not(.open) .reveal{margin:10px 14px 4px;width:calc(100% - 28px)}
  .eq{padding:8px 10px}
  .eq-body .katex{font-size:1.02em}
  .judge{grid-template-columns:26px 1fr;padding:12px}
  .pick{grid-column:2}
  .judge .why{grid-column:2}
  .drill{width:100vw;max-width:100vw;max-height:100dvh;height:100dvh;border-radius:0;margin:0}
  .drill-actions button{flex:1;min-width:0}
}
@media print{
  .toolbar,.toc,.dock,.card-foot,.reveal,.mast-art{display:none!important}
  .layout{display:block;padding:0}
  .masthead{background:none;color:var(--ink)}.masthead h1{color:var(--ink)}
  .recall .card .card-body{display:block!important}
  .card{break-inside:avoid}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}