.explain-launch{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin-top:12px}.explain-open{display:inline-flex;align-items:center;gap:10px;min-height:40px;padding:8px 16px;background:transparent;color:var(--paper);border:1px solid var(--rule-strong);font:600 14px/1.4 var(--f-ui);transition:background .18s,border-color .18s}.explain-open:hover{background:var(--ink-2);border-color:var(--paper-soft)}.explain-open svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}.explain-hint{margin:0;font-size:13px;color:var(--paper-soft)}.explain-menu{position:fixed;z-index:70;display:flex;padding:4px;gap:2px;background:var(--ink-2);border:1px solid var(--rule-strong);box-shadow:0 10px 30px #00000080}.explain-menu button{min-height:36px;padding:6px 12px;background:transparent;border:0;color:var(--paper);font:500 13px/1.2 var(--f-ui);white-space:nowrap}.explain-menu button:hover,.explain-menu button:focus-visible{background:#f1eee514}.explain-menu .explain-menu-primary{color:var(--copper);font-weight:600}.explain-panel{position:fixed;z-index:65;top:0;right:0;bottom:0;width:min(440px,100vw);display:flex;flex-direction:column;background:var(--ink);border-left:1px solid var(--rule-strong);box-shadow:-16px 0 48px #00000073;color:var(--paper);font:400 15px/1.6 var(--f-ui)}.explain-panel[hidden]{display:none}.explain-head{display:flex;align-items:center;gap:12px;padding:12px 12px 12px 18px;border-bottom:1px solid var(--rule)}.explain-title{flex:1;min-width:0;margin:0;font:600 11px/1.4 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.explain-where{color:var(--paper-soft);font-weight:400;letter-spacing:.04em;text-transform:none}.explain-link{padding:4px 0;background:transparent;border:0;color:var(--paper-soft);font:500 12px/1.2 var(--f-ui);text-decoration:underline;text-underline-offset:3px}.explain-link:hover{color:var(--paper)}.explain-close,.explain-quote-drop{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;background:transparent;border:0;color:var(--paper-soft)}.explain-close:hover,.explain-quote-drop:hover{color:var(--paper)}.explain-close svg,.explain-quote-drop svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.explain-log{flex:1;overflow-y:auto;padding:16px 18px;display:flex;flex-direction:column;gap:14px;overscroll-behavior:contain}.explain-empty{margin:auto 0;color:var(--paper-soft);font-size:14px;line-height:1.55}.explain-msg{margin:0;font-size:15px;line-height:1.6}.explain-msg p,.explain-msg ul,.explain-msg ol,.explain-msg pre,.explain-msg blockquote,.explain-msg h4{margin:0 0 10px}.explain-msg>:last-child{margin-bottom:0}.explain-msg ul,.explain-msg ol{padding-left:20px}.explain-msg h4{font:600 15px/1.4 var(--f-ui)}.explain-msg code{font:13px/1.5 var(--f-mono);background:#f1eee512;padding:1px 4px}.explain-msg pre{padding:10px 12px;overflow-x:auto;background:var(--ink-2);border:1px solid var(--rule)}.explain-msg pre code{background:none;padding:0}.explain-msg a{color:var(--copper);text-underline-offset:3px}.explain-reader{align-self:flex-end;max-width:92%;padding:10px 12px;background:var(--ink-2);border:1px solid var(--rule)}.explain-reader blockquote,.explain-quote blockquote{margin:0 0 8px;padding-left:10px;border-left:2px solid var(--copper);color:var(--paper-soft);font-size:14px;font-style:italic}.explain-tutor blockquote{padding-left:10px;border-left:2px solid var(--rule-strong);color:var(--paper-soft)}.explain-looked{margin-top:10px;font:11px/1.5 var(--f-mono);color:var(--paper-soft)}.explain-problem{color:var(--paper);padding:10px 12px;border:1px solid var(--rule-strong);font-size:14px}.explain-thinking{color:var(--paper-soft);font:12px/1.4 var(--f-mono)}.explain-thinking:after{content:"";display:inline-block;width:6px;height:6px;margin-left:8px;background:var(--copper);border-radius:50%;animation:explain-pulse 1s ease-in-out infinite}@keyframes explain-pulse{50%{opacity:.25}}.explain-ask{display:grid;grid-template-columns:1fr auto;gap:8px;padding:12px 18px 8px;border-top:1px solid var(--rule)}.explain-quote{grid-column:1 / -1;display:flex;align-items:flex-start;gap:6px}.explain-quote[hidden]{display:none}.explain-quote blockquote{flex:1;margin:0}.explain-ask textarea{min-height:44px;max-height:160px;resize:vertical;padding:10px 12px;background:var(--ink-2);border:1px solid var(--rule-strong);color:var(--paper);font:15px/1.45 var(--f-ui)}.explain-ask textarea:focus{outline:1px solid var(--copper);outline-offset:-1px}.explain-submit{align-self:end;min-height:44px;padding:0 16px;background:var(--copper);border:1px solid var(--copper);color:var(--ink);font:600 14px/1 var(--f-ui)}.explain-submit.explain-stop{background:transparent;color:var(--paper);border-color:var(--rule-strong)}.explain-note{margin:0;padding:0 18px calc(12px + env(safe-area-inset-bottom));font-size:12px;color:var(--paper-soft)}@media(max-width:720px){.explain-panel{top:auto;left:0;width:100vw;height:min(78vh,78dvh);border-left:0;border-top:1px solid var(--rule-strong);box-shadow:0 -16px 48px #00000073}}@media(min-width:1280px){.explain-panel-open body{padding-right:440px}.explain-panel-open .voice-player-fixed{left:calc(50% - 220px)}}