:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--paper:#fff;--ink:#202020;--muted:#666;--label:#8a8a8a;--line:#e2e2e2;--line-strong:#d9d9d9;--surface:#f5f5f5;--track:#e6e6e6;--overlay:#00000059;--font-sans:"PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--font-serif:"Longform Serif Latin", "Longform Serif SC", "Longform Serif Fallback", "Songti SC", SimSun, serif;--font-mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--radius:8px;--topbar-h:56px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--paper:#000;--ink:#fff;--muted:#a3a3a3;--label:#8a8a8a;--line:#2e2e2e;--line-strong:#3a3a3a;--surface:#141414;--track:#262626;--overlay:#0009}}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--paper:#000;--ink:#fff;--muted:#a3a3a3;--label:#8a8a8a;--line:#2e2e2e;--line-strong:#3a3a3a;--surface:#141414;--track:#262626;--overlay:#0009}*,:before,:after{box-sizing:border-box;margin:0}html,body{height:100%;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.5}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:0;padding:0}button:disabled{cursor:not-allowed}:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.lf-btn{border:1px solid var(--line-strong);background:var(--paper);height:32px;color:var(--ink);white-space:nowrap;border-radius:6px;align-items:center;gap:6px;padding:0 10px;font-size:13px;line-height:1;display:inline-flex}.lf-btn:hover:not(:disabled){background:var(--surface)}.lf-btn:disabled{opacity:.4}.lf-btn-icon{border-color:#0000;justify-content:center;width:30px;height:30px;padding:0}.lf-btn-icon:hover:not(:disabled){background:var(--surface)}.lf-icon{flex:none;width:16px;height:16px}.lf-icon-spin{animation:1s linear infinite lf-spin}@keyframes lf-spin{to{transform:rotate(360deg)}}.lf-app{flex-direction:column;height:100dvh;min-height:100dvh;display:flex}.lf-topbar{height:var(--topbar-h);border-bottom:1px solid var(--line);flex:none;order:0;justify-content:space-between;align-items:center;padding:0 24px;display:flex}.lf-brand{font-family:var(--font-serif);letter-spacing:.04em;font-size:20px;font-weight:700}.lf-theme{border:1px solid var(--line-strong);border-radius:6px;display:inline-flex;overflow:hidden}.lf-theme button{height:30px;color:var(--muted);align-items:center;gap:5px;padding:0 10px;font-size:12px;display:inline-flex}.lf-theme button+button{border-left:1px solid var(--line-strong)}.lf-theme button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.lf-main{flex:auto;order:1;grid-template-rows:auto 1fr;grid-template-columns:1fr 1fr;column-gap:16px;min-height:0;padding:12px 24px 0;display:grid}.lf-tools{grid-column:1/-1;justify-content:flex-end;padding-bottom:10px;display:flex}.lf-tools-mobile{display:none}.lf-input-pane{border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;min-height:0;display:flex}.lf-textarea{resize:none;background:0 0;border:0;outline:0;flex:auto;width:100%;min-height:0;padding:16px 18px;font-size:16px;line-height:1.75}.lf-textarea::placeholder{color:var(--label)}.lf-input-foot{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;font-size:12px;display:flex}.lf-input-foot .lf-actions{gap:8px;display:flex}.lf-count-over{color:var(--ink);font-weight:700}.lf-answers{flex-direction:column;gap:12px;min-height:0;padding-right:2px;display:flex;overflow-y:auto}.lf-answers-empty{border:1px dashed var(--line);border-radius:var(--radius);color:var(--label);flex:1;justify-content:center;align-items:center;font-size:13px;display:flex}.lf-answers.lf-split>.lf-card{flex:1 1 0;min-height:0}.lf-answers.lf-stack>.lf-card{flex:none;max-height:56vh}.lf-answers>.lf-card.lf-collapsed{flex:none}.lf-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);flex-direction:column;min-height:0;display:flex}.lf-card-head{border-bottom:1px solid var(--line);flex-wrap:wrap;flex:none;align-items:center;gap:10px;padding:6px 8px 6px 14px;display:flex}.lf-card.lf-collapsed .lf-card-head{border-bottom:0}.lf-card-heading{flex-wrap:wrap;flex:260px;align-items:center;gap:4px 10px;min-width:0;display:flex}.lf-card-identity{flex:none;align-items:center;gap:10px;max-width:100%;display:inline-flex}.lf-card-metrics{min-width:0;color:var(--muted);overflow-wrap:anywhere;flex:0 auto;font-size:11px}.lf-card-name{white-space:nowrap;font-size:14px;font-weight:700}.lf-card-status{color:var(--muted);white-space:nowrap;align-items:center;gap:4px;font-size:12px;display:inline-flex}.lf-card-actions{flex-shrink:0;gap:2px;margin-left:auto;display:flex}.lf-card-body{flex:auto;min-height:0;padding:16px 20px 20px;overflow-y:auto}.lf-card-body[hidden]{display:none}.lf-card-note{border-top:1px solid var(--line);color:var(--muted);flex:none;align-items:center;gap:6px;padding:8px 14px;font-size:12px;display:flex}.lf-card-empty{color:var(--label);font-size:13px}.lf-prose{font-family:var(--font-serif);font-synthesis:none;text-spacing-trim:space-all;color:var(--ink);overflow-wrap:anywhere;font-size:16px;line-height:1.85}.lf-prose>:first-child{margin-top:0}.lf-prose h1{letter-spacing:.03em;margin:32px 0 18px;font-size:26px;font-weight:700;line-height:1.3}.lf-prose h2{letter-spacing:.025em;margin:40px 0 16px;font-size:21px;font-weight:700;line-height:1.35}.lf-prose h3{margin:28px 0 10px;font-size:18px;font-weight:700;line-height:1.5}.lf-prose h4,.lf-prose h5,.lf-prose h6{margin:20px 0 6px;font-size:16px;font-weight:700;line-height:1.8}.lf-prose p{margin:0 0 18px}.lf-prose ul,.lf-prose ol{margin:0 0 18px;padding-left:22.4px}.lf-prose li,.lf-prose li>p{margin-bottom:6px}.lf-prose blockquote{border-left:1px solid var(--muted);margin:24px 0 18px 18px;padding-left:18px}.lf-prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}.lf-prose a{color:var(--ink);text-underline-offset:.15em;text-decoration:underline}.lf-prose strong{font-weight:700}.lf-prose code{font-family:var(--font-mono);background:var(--surface);border-radius:4px;padding:.1em .35em;font-size:.9em}.lf-prose pre{background:var(--surface);white-space:pre-wrap;border-radius:6px;margin:0 0 18px;padding:12px 14px;overflow-x:auto}.lf-prose pre code{background:0 0;padding:0}.lf-prose .lf-table{margin:24px 0 18px;overflow-x:auto}.lf-prose table{border-collapse:collapse;width:100%;font-family:var(--font-sans);font-size:14px;line-height:1.6}.lf-prose th,.lf-prose td{text-align:left;vertical-align:top;padding:8px 10px}.lf-prose th{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);font-weight:700}.lf-prose td{border-bottom:1px solid var(--line-strong)}.lf-prose .lf-md-img{font-family:var(--font-mono);color:var(--muted);font-size:.9em}.lf-reader{z-index:40;background:var(--paper);flex-direction:column;display:flex;position:fixed;inset:0}.lf-reader-bar{height:var(--topbar-h);border-bottom:1px solid var(--line);flex:none;align-items:center;gap:12px;padding:0 24px;display:flex}.lf-reader-bar .lf-card-actions{margin-left:auto}.lf-reader-scroll{flex:auto;overflow-y:auto}.lf-reader-body{max-width:740px;margin:0 auto;padding:56px 24px 120px}.lf-reader-body .lf-prose{font-size:18px}.lf-reader-body .lf-prose h1{margin:0 0 28px;font-size:34px}.lf-reader-body .lf-prose h2{margin:64px 0 24px;font-size:27px}.lf-reader-body .lf-prose h2:first-child{margin-top:0}.lf-reader-body .lf-prose h3{margin:36px 0 12px;font-size:20px}.lf-reader-body .lf-prose h4{margin:24px 0 6px;font-size:18px}.lf-reader-body .lf-prose table{font-size:16px}.lf-directions{flex:none;order:2;padding:12px 24px 0}.lf-directions-row{align-items:stretch;gap:8px;display:flex}.lf-directions-strip{scrollbar-width:thin;flex:auto;gap:8px;min-width:0;padding-bottom:2px;display:flex;overflow-x:auto}.lf-directions-all{flex-direction:column;gap:14px;max-height:42vh;padding:4px 0 2px;display:flex;overflow-y:auto}.lf-directions-group h3{color:var(--label);margin:0 0 6px;font-size:12px;font-weight:400}.lf-directions-grid{flex-wrap:wrap;gap:8px;display:flex}.lf-dir{text-align:left;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--paper);width:220px;color:var(--ink);flex:none;padding:9px 12px}.lf-dir:hover{background:var(--surface)}.lf-dir[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.lf-dir[aria-pressed=true]:hover{background:var(--ink)}.lf-dir-name{font-size:14px;font-weight:700;line-height:1.3;display:block}.lf-dir-desc{opacity:.75;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-top:3px;font-size:12px;line-height:1.4;display:-webkit-box;overflow:hidden}.lf-dir-toggle{flex:none;align-self:center}.lf-directions-empty{color:var(--label);padding:8px 0;font-size:13px}.lf-direction-controls{flex-wrap:wrap;gap:10px;margin-bottom:8px;display:flex}.lf-direction-controls label{color:var(--label);flex-direction:column;flex:160px;gap:4px;min-width:0;font-size:12px;display:flex}.lf-direction-controls select,.lf-direction-controls input{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--paper);width:100%;min-height:40px;color:var(--ink);font:inherit;padding:7px 10px;font-size:14px}.lf-direction-options{max-height:25vh;padding:2px 2px 6px;overflow-y:auto}.lf-direction-options .lf-dir{flex:200px;min-width:0}.lf-direction-controls :focus-visible,.lf-direction-options :focus-visible{outline:2px solid var(--ink);outline-offset:2px}.lf-footer{flex-direction:column;flex:none;order:3;align-items:center;gap:8px;padding:12px 24px 16px;display:flex}.lf-generate{border-radius:var(--radius);background:var(--ink);min-width:180px;height:44px;color:var(--paper);letter-spacing:.06em;justify-content:center;align-items:center;gap:8px;padding:0 28px;font-size:15px;font-weight:700;display:inline-flex}.lf-generate:disabled{opacity:.3}.lf-generate-hint{color:var(--label);font-size:11px}.lf-current-direction{max-width:100%;color:var(--label);text-align:center;overflow-wrap:anywhere;font-size:12px}.lf-generate-choice{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;max-width:100%;display:flex}.lf-picker{position:relative}.lf-picker-menu{z-index:20;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--paper);min-width:240px;box-shadow:0 8px 24px var(--overlay);padding:6px;position:absolute;top:calc(100% + 6px);right:0}.lf-picker-item{text-align:left;border-radius:6px;align-items:center;gap:10px;width:100%;padding:8px 10px;font-size:14px;display:flex}.lf-picker-item:hover{background:var(--surface)}.lf-picker-item input{accent-color:var(--ink);width:15px;height:15px;margin:0}.lf-picker-empty{color:var(--label);padding:10px;font-size:13px}.lf-gate{z-index:50;background:var(--paper);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.lf-gate-box{flex-direction:column;gap:14px;width:min(360px,100vw - 32px);display:flex}.lf-gate-box h1{font-family:var(--font-serif);letter-spacing:.04em;font-size:24px;font-weight:700}.lf-gate-box p{color:var(--muted);font-size:14px}.lf-gate-box input{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--paper);height:44px;padding:0 14px;font-size:16px}.lf-gate-msg{color:var(--muted);align-items:center;gap:6px;min-height:18px;font-size:13px;display:flex}@media (max-width:899px){.lf-app{height:auto;min-height:100dvh}.lf-topbar{background:var(--paper);z-index:10;padding:0 16px;position:sticky;top:0}.lf-brand{font-size:18px}.lf-theme button span{display:none}.lf-theme button{padding:0 9px}.lf-main{display:contents}.lf-tools{display:none}.lf-tools-mobile{display:block}.lf-directions{order:1;padding:12px 16px 0}.lf-directions-all{max-height:none}.lf-dir{width:200px}.lf-input-pane{flex:none;order:2;height:44vh;min-height:260px;margin:12px 16px 0}.lf-footer{order:3;padding:12px 16px}.lf-generate{width:100%}.lf-generate-hint{display:none}.lf-answers{flex:none;order:4;padding:0 16px 32px;overflow:visible}.lf-answers-empty{display:none}.lf-answers.lf-split>.lf-card,.lf-answers.lf-stack>.lf-card{flex:none;max-height:70vh}.lf-card-body{padding:14px 16px 18px}.lf-card-name{white-space:normal}.lf-reader-bar{padding:0 16px}.lf-reader-body{padding:28px 16px 80px}.lf-reader-body .lf-prose{font-size:17px}.lf-reader-body .lf-prose h1{font-size:28px}.lf-reader-body .lf-prose h2{margin:44px 0 18px;font-size:23px}}