:root{--bg: oklch(1 0 0);--surface: oklch(.995 .001 280);--surface-2: oklch(.978 .003 280);--line: oklch(.925 .003 280);--line-strong: oklch(.875 .004 280);--ink: oklch(.24 .012 280);--ink-2: oklch(.5 .012 280);--ink-3: oklch(.62 .01 280);--primary: oklch(.55 .11 210);--primary-ink: oklch(.985 0 0);--primary-weak: color-mix(in oklab, var(--primary) 8%, var(--bg));--primary-mid: color-mix(in oklab, var(--primary) 18%, var(--bg));--accent: oklch(.7 .13 70);--danger: oklch(.58 .16 25);--ok: oklch(.52 .13 150);--warn: oklch(.66 .15 70);--warn-ink: oklch(.47 .13 65);--r-sm: 8px;--r: 12px;--r-lg: 16px;--r-xl: 22px;--nav-h: 58px;--hdr-h: 62px;--maxw: 560px;--ease: cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 1px 2px color-mix(in oklab, var(--ink) 6%, transparent), 0 1px 3px color-mix(in oklab, var(--ink) 4%, transparent);--shadow-lg: 0 18px 50px color-mix(in oklab, var(--ink) 16%, 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var(--ease)}.bar.ok i{background:var(--ok)}.bar.thick{height:12px}.bar-line{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);font-weight:600;margin-top:8px}.bar-line .bar{flex:1}.ring{position:relative;display:inline-grid;place-items:center;flex:0 0 auto}.ring svg{transform:rotate(-90deg);display:block}.ring .track{stroke:var(--surface-2)}.ring .val{stroke:var(--primary);transition:stroke-dashoffset .8s var(--ease);stroke-linecap:round}.ring.ok .val{stroke:var(--ok)}.ring.warn .val{stroke:var(--warn)}.ring .in{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;text-align:center;line-height:1.05}.ring .in b{font-size:15px;font-weight:700;letter-spacing:-.02em}.hero-progress{display:flex;align-items:center;gap:16px}.hero-progress .ring .in b{font-size:30px}.hero-progress .ring .in small{display:block;font-size:11px;color:var(--ink-3);font-weight:600;margin-top:3px}.hero-progress 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.fname{flex:1;min-width:0;border:0;background:none;padding:0;text-align:right;font-size:13.5px;font-weight:600;color:var(--primary);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.file-row small{color:var(--ink-3);font-size:11.5px;white-space:nowrap}.upload-btn{position:relative;overflow:hidden}.upload-btn input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;font-size:0}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:250;background:#0a0e1647;display:flex;align-items:flex-end;justify-content:center;animation:fade .18s var(--ease)}.sheet{width:100%;max-height:92%;background:var(--bg);border-radius:var(--r-xl) var(--r-xl) 0 0;display:flex;flex-direction:column;animation:up .24s var(--ease);box-shadow:var(--shadow-lg);padding-bottom:env(safe-area-inset-bottom)}.sheet-head{display:flex;align-items:center;gap:8px;padding:10px 14px 8px 8px;border-bottom:1px solid var(--line);position:relative}.sheet-head:before{content:"";position:absolute;top:6px;left:50%;transform:translate(-50%);width:38px;height:4px;border-radius:4px;background:var(--line-strong)}.sheet-head b{flex:1;font-size:17px;font-weight:650;padding:8px 4px 0}.sheet-body{overflow:auto;padding:14px 16px 18px;flex:1;min-height:0}.sheet-foot{padding:10px 16px 14px;border-top:1px solid var(--line);display:flex;gap:8px}.sheet-foot>*{flex:1}.modal-box{width:min(100% - 36px,360px);margin:auto;border:1px solid var(--line);border-radius:20px;background:var(--bg);padding:18px;animation:pop .18s var(--ease);align-self:center}.modal-box b{display:block;font-size:17px;font-weight:650;margin-bottom:6px}.modal-box p{margin:0 0 16px;color:var(--ink-2);font-size:13.5px;line-height:1.5}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.toast{position:absolute;right:14px;left:14px;bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 12px);background:var(--ink);color:#fff;border-radius:14px;padding:11px 14px;font-size:13.5px;font-weight:600;z-index:300;display:flex;align-items:center;gap:10px;animation:up .2s var(--ease);box-shadow:var(--shadow-lg)}.toast span{flex:1}.toast button{border:0;background:color-mix(in oklab,#fff 16%,transparent);color:#fff;border-radius:9px;padding:6px 11px;font-weight:700;font-size:13px}@keyframes fade{0%{opacity:0}}@keyframes up{0%{transform:translateY(24px);opacity:0}}@keyframes pop{0%{transform:scale(.96);opacity:0}}.ob{position:absolute;top:0;right:0;bottom:0;left:0;z-index:400;background:var(--bg);display:flex;flex-direction:column}.ob-top{padding:14px 16px 6px;display:flex;align-items:center;gap:10px}.ob-dots{flex:1;display:flex;gap:4px}.ob-dots i{flex:1;height:5px;border-radius:4px;background:var(--line);transition:background .2s}.ob-dots i.on{background:var(--primary)}.ob-body{flex:1;overflow:auto;padding:8px 18px 18px}.ob-card{border:1px solid var(--line);border-radius:var(--r-xl);padding:20px 18px;background:var(--bg);box-shadow:var(--shadow-sm);animation:up .24s var(--ease)}.ob-ic{width:54px;height:54px;border-radius:17px;display:grid;place-items:center;color:var(--primary);background:var(--primary-weak);margin-bottom:14px}.ob-ic svg{width:28px;height:28px;stroke-width:1.75}.ob-card h1{margin:0 0 6px;font-size:22px;font-weight:660;letter-spacing:-.02em;line-height:1.15}.ob-card>p{margin:0 0 18px;color:var(--ink-2);font-size:14px;font-weight:500;line-height:1.5}.ob-foot{padding:12px 18px calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.6fr;gap:8px}.choice{width:100%;text-align:right;border:1px solid var(--line);border-radius:15px;background:var(--surface);padding:12px 13px;margin-bottom:8px;display:flex;align-items:center;gap:11px}.choice .ic{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);color:var(--ink-3);flex:0 0 auto;font-weight:700;font-size:13px}.choice .ic svg{width:18px;height:18px}.choice b{display:block;font-size:14.5px;font-weight:630}.choice small{display:block;font-size:12.5px;color:var(--ink-3);font-weight:500}.choice.on{border-color:color-mix(in oklab,var(--primary) 55%,var(--line));background:var(--primary-weak);box-shadow:0 0 0 1px color-mix(in oklab,var(--primary) 40%,transparent) inset}.choice.on .ic{background:var(--primary);color:var(--primary-ink)}.chat{display:flex;flex-direction:column;gap:10px}.bubble{max-width:88%;padding:10px 13px;border-radius:16px;font-size:14.5px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.bubble.user{align-self:flex-start;background:var(--primary);color:var(--primary-ink);border-bottom-right-radius:5px}.bubble.assistant{align-self:flex-end;background:var(--surface-2);border:1px solid var(--line);border-bottom-left-radius:5px}.proposal{align-self:stretch;border:1px solid color-mix(in oklab,var(--primary) 30%,var(--line));border-radius:15px;padding:12px;background:var(--primary-weak)}.proposal b{font-size:13.5px}.proposal ul{margin:8px 0 0;padding:0 18px 0 0;font-size:13.5px}.proposal li{margin:3px 0}.proposal li.err{color:var(--danger)}.chat-input{display:flex;gap:8px;align-items:flex-end}.chat-input .textarea{min-height:48px;max-height:140px;resize:none}.suggest{display:flex;gap:6px;flex-wrap:wrap}.suggest button{border:1px solid var(--line);background:var(--bg);border-radius:99px;padding:7px 12px;font-size:13px;font-weight:560;color:var(--ink-2)}.typing{display:inline-flex;gap:4px}.typing i{width:7px;height:7px;border-radius:50%;background:var(--ink-3);animation:blink 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes blink{50%{opacity:.25}}.empty{text-align:center;padding:30px 20px;color:var(--ink-3);font-size:14px}.empty svg{width:34px;height:34px;margin-bottom:8px;opacity:.6}.theme-picker{display:flex;gap:8px;flex-wrap:wrap}.theme-btn{width:34px;height:34px;border-radius:10px;border:2px solid var(--line);background:var(--c);padding:0}.theme-btn.active{border-color:var(--ink);outline:2px solid color-mix(in oklab,var(--ink) 12%,transparent)}.activity{font-size:13px}.activity .li{padding:9px 2px}