:root{--paper: #f5f4f1;--ink: #1c1c1e;--muted: #6e6e73;--line: #e5e4df;--card: #ffffff;--accent: #1c1c1e;--tint: #eceaf6;--word: #c9c3f0;--grad: linear-gradient(160deg, #5b4cdb, #8a5cf6);--shadow: 0 16px 48px rgba(28, 28, 30, .08);--safe-t: env(safe-area-inset-top);--safe-b: env(safe-area-inset-bottom)}*{box-sizing:border-box;margin:0}[hidden]{display:none!important}html,body{height:100%}body{font:17px/1.45 -apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,sans-serif;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit;color:inherit}button{background:none;border:0;cursor:pointer}button:focus-visible,[tabindex]:focus-visible{outline:2px solid #5b4cdb;outline-offset:3px}.mark{width:64px;height:64px;border-radius:20px;background:var(--grad);color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px #5b4cdb47}.mark.sm{width:30px;height:30px;border-radius:9px;box-shadow:none}.btn{display:block;width:100%;max-width:360px;background:var(--ink);color:#fff;font-weight:600;font-size:17px;border-radius:980px;padding:15px 22px;transition:transform .12s,opacity .12s}.btn:hover{transform:scale(1.015)}.btn:active{transform:scale(.985)}.btn:disabled{opacity:.45;cursor:default;transform:none}.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line);margin-top:10px}.btn.add{max-width:none;margin-bottom:16px}.text-btn{color:var(--muted);font-weight:600;font-size:15px;padding:8px}html[data-first=gate] #onboard,html[data-first=onboard] #gate{display:none}.onboard{min-height:100%;display:grid;place-items:center;padding:calc(32px + var(--safe-t)) 24px calc(32px + var(--safe-b))}.onboard-card{width:min(420px,100%)}.onboard-card h1{font-size:clamp(32px,8vw,42px);line-height:1.15;letter-spacing:-.02em;font-weight:600;margin:28px 0 12px}.onboard-card p{color:var(--muted);font-size:18px;line-height:1.45;margin-bottom:32px;max-width:36ch}.onboard-card .btn{margin-top:0}.onboard-card .field{margin-bottom:14px;padding:14px 16px}.choices{display:grid;gap:10px;margin-bottom:14px}.choice{display:block;width:100%;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 18px;transition:border-color .12s,transform .12s}.choice:hover{border-color:#c9c3f0;transform:scale(1.01)}.choice:active{transform:scale(.99)}.choice[disabled]{opacity:.45}.choice-t{display:block;font-weight:600;font-size:17px}.choice-m{display:block;color:var(--muted);font-size:14px;line-height:1.35;margin-top:3px}.fine.soft{color:var(--muted);margin-top:0;margin-bottom:4px;font-size:14px}.onboard-card .fine{margin-top:16px;color:#c0392b;font-size:15px}.progress{margin-bottom:24px}.progress-track{height:6px;border-radius:99px;background:#e8e6e1;overflow:hidden}.progress-track i{display:block;height:100%;width:0;background:var(--grad);border-radius:inherit;transition:width .2s ease}.progress-label{margin:12px 0 0;color:var(--muted);font-size:15px}.app{display:flex;height:100%}.rail{width:280px;flex:none;background:#faf9f6;border-right:1px solid var(--line);padding:22px 16px calc(16px + var(--safe-b));display:flex;flex-direction:column}.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;padding:2px 6px 20px}.lib{overflow:auto;flex:1;display:flex;flex-direction:column;gap:4px}.lib-item{text-align:left;width:100%;padding:11px 12px;border-radius:12px}.lib-item:hover{background:#efece6}.lib-item.on{background:var(--tint)}.lib-item .t{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:22px}.lib-item .m{font-size:12px;color:var(--muted);margin-top:3px}.lib-item{position:relative}.lib-item .del{position:absolute;top:8px;right:8px;width:22px;height:22px;border-radius:6px;color:var(--muted);display:none;place-items:center}.lib-item:hover .del{display:grid}.rail-note{margin-top:12px;font-size:12px;color:var(--muted)}main{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}.top{display:none;align-items:center;gap:8px;padding:calc(10px + var(--safe-t)) 16px 10px;border-bottom:1px solid var(--line)}.top-title{font-weight:600;font-size:15px}.reader{flex:1;overflow:auto;padding:56px 32px 180px}.hero{height:100%;min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;color:var(--muted);padding:24px}.hero h2{color:var(--ink);font-size:26px;letter-spacing:-.03em}.hero p{max-width:32ch}.hero .btn{margin-top:10px}.page{max-width:680px;margin:0 auto}.page h1{font-family:Charter,Georgia,Times New Roman,serif;font-size:34px;line-height:1.2;letter-spacing:-.03em;margin-bottom:28px}.prose{font-family:Charter,Georgia,serif;font-size:20px;line-height:1.75;color:#2c2c2e}.sent{border-radius:6px;padding:1px 2px}.sent.now{background:var(--tint)}.w{border-radius:5px;padding:0 1px;cursor:pointer}.w:hover{background:#e4e1f7}.w.now{background:var(--word)}.prose .sent.furn{opacity:.38}.sheets{max-width:940px;margin:0 auto;display:flex;flex-direction:column;gap:24px}.sheet{position:relative;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 3px 18px #1c1c1e21;overflow:hidden;isolation:isolate}.sheet canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.ov{position:absolute;inset:0}.ov .sb,.ov .wb{position:absolute;border-radius:3px;pointer-events:none;mix-blend-mode:multiply;z-index:2}.ov .sb{background:var(--tint)}.ov .wb{background:var(--word);z-index:3}.ov .hit{position:absolute;z-index:1;cursor:pointer;border-radius:3px}.ov .hit:hover{background:#5b4cdb12}.ov .hit.furn{cursor:default}.ov .hit.furn:hover{background:none}.player{position:absolute;left:50%;bottom:calc(22px + var(--safe-b));transform:translate(-50%);width:min(720px,calc(100% - 32px));background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:12px 16px 14px;display:none;flex-direction:column;gap:8px;z-index:10}.player.on{display:flex}.p-top{display:flex;align-items:center;gap:10px}.scrub{flex:1;height:18px;display:flex;align-items:center;cursor:pointer}.scrub .track{width:100%;height:4px;border-radius:99px;background:var(--line);overflow:hidden}.scrub .track i{display:block;height:100%;width:0;background:var(--grad)}.p-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:72px;text-align:right}.p-main{display:flex;align-items:center;justify-content:space-between;gap:10px 12px;flex-wrap:wrap}.p-group{display:flex;align-items:center;gap:8px;flex:1 1 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h3{font-size:20px;letter-spacing:-.02em;margin-bottom:14px}.field{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;margin-bottom:10px}textarea.field{min-height:140px;resize:vertical}.dlg .btn{max-width:none;margin-top:6px}.dlg .text-btn{display:block;width:100%;margin-top:8px}.toast{position:fixed;top:calc(16px + var(--safe-t));left:50%;transform:translate(-50%) translateY(-8px);background:var(--ink);color:#fff;border-radius:12px;padding:10px 16px;font-size:14px;max-width:80vw;opacity:0;pointer-events:none;transition:.18s;z-index:99}.toast.on{opacity:1;transform:translate(-50%) translateY(0)}.banner{position:fixed;top:0;left:0;right:0;padding:calc(10px + var(--safe-t)) 16px 10px;background:#1c1c1e;color:#fff;text-align:center;font-size:14px;z-index:80}@media(max-width:800px){.rail{display:none;position:fixed;inset:0 auto 0 0;z-index:20;width:min(320px,86vw);box-shadow:var(--shadow)}.rail.open,.top{display:flex}.reader{padding:28px 20px 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