:root{--bg: #f7faf8;--bg-elev: #eef5f1;--bg-card: #ffffff;--line: rgba(26, 95, 74, .12);--text: #1a2e26;--muted: #5f7a6e;--text-tertiary: #8aa197;--accent: #1f8a63;--accent-dim: #167352;--accent-soft: rgba(31, 138, 99, .12);--danger: #d64545;--warn: #c4891a;--radius: 16px;--nav-h: 52px;--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px);--shadow: 0 6px 20px rgba(26, 46, 38, .06);--font: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;--fs-xs: .75rem;--fs-sm: .8125rem;--fs-md: .875rem;--fs-base: 1rem;--fs-lg: 1.0625rem;--fs-xl: 1.25rem;--fs-2xl: 1.5rem;--fw-regular: 400;--fw-medium: 500;--fw-semibold: 600;--fw-bold: 700;--lh-tight: 1.25;--lh-snug: 1.4;--lh-body: 1.55;--track-label: .06em}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;width:100%;height:100%;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;font-weight:var(--fw-regular);line-height:var(--lh-body);text-align:left;overflow:hidden;position:fixed;top:0;right:0;bottom:0;left:0;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{margin:0;color:var(--text);font-weight:var(--fw-bold);line-height:var(--lh-tight);text-align:left}body{background:radial-gradient(120% 70% at 8% -8%,rgba(31,138,99,.1),transparent 48%),radial-gradient(90% 50% at 100% 0%,rgba(31,138,99,.06),transparent 42%),var(--bg)}#app{position:absolute;top:0;right:0;bottom:0;left:0;max-width:480px;margin:0 auto;width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden}.app-header{padding:calc(var(--safe-t) + 14px) 20px 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8px;font-size:var(--fs-lg);font-weight:var(--fw-bold);line-height:var(--lh-tight);color:var(--text)}.card.panel-hero>h2,.panel-hero>h2,.page-title,.task-hero>h2{margin:0 0 8px;font-size:var(--fs-xl);font-weight:var(--fw-bold);letter-spacing:.01em;line-height:var(--lh-tight);color:var(--text)}.card h3,.section-subtitle{margin:0 0 8px;font-size:var(--fs-base);font-weight:var(--fw-semibold);line-height:var(--lh-snug);color:var(--accent-dim)}.lead{margin:0 0 14px;font-size:var(--fs-md);font-weight:var(--fw-regular);line-height:var(--lh-body);color:var(--muted)}.muted{color:var(--muted);font-size:var(--fs-md);font-weight:var(--fw-regular);line-height:var(--lh-body)}.hint,.meta,.timer-hint{color:var(--text-tertiary);font-size:var(--fs-sm);font-weight:var(--fw-regular);line-height:var(--lh-snug)}.list-item .title,.title{font-size:var(--fs-base);font-weight:var(--fw-semibold);line-height:var(--lh-snug);color:var(--text)}.tag{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-dim);font-size:var(--fs-xs);font-weight:var(--fw-semibold);line-height:1.3;letter-spacing:.02em}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row-between{display:flex;justify-content:space-between;align-items:center;gap:8px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--bg-elev);color:var(--text);border-radius:12px;padding:12px 16px;font-size:var(--fs-base);font-weight:var(--fw-semibold);font-family:inherit;line-height:var(--lh-snug);text-align:center;cursor:pointer;min-height:44px;transition:background .15s,border-color .15s,transform 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20%,rgba(31,138,99,.1),transparent 60%),var(--bg-elev);border:1px solid var(--line);overflow:hidden}.rec-ring{position:absolute;width:132px;height:132px;border-radius:50%;border:2px solid rgba(31,138,99,.18);pointer-events:none}.rec-stage.is-recording .rec-ring{border-color:#d6454566;animation:ring-pulse 1.4s ease-out infinite}.rec-stage.is-done{border-color:#1f8a6359}@keyframes ring-pulse{0%{transform:scale(.85);opacity:.9}to{transform:scale(1.25);opacity:0}}.recorder-status{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:10px;color:var(--muted);font-size:var(--fs-md);font-weight:var(--fw-semibold);line-height:var(--lh-snug)}.rec-dot{width:9px;height:9px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite}@keyframes 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var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px;box-shadow:var(--shadow)}.hist-card>summary{margin:0}.hist-card .list{margin-top:10px}.nav{position:relative;flex-shrink:0;width:100%;padding:4px 0 0;padding-bottom:var(--safe-b);display:grid;grid-template-columns:repeat(4,1fr);align-items:center;background:#fff;border-top:1px solid var(--line);z-index:30;box-shadow:0 -4px 16px #1a2e260d}.nav button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:transparent;color:var(--text-tertiary);font-family:inherit;font-size:.6875rem;font-weight:var(--fw-medium);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;cursor:pointer;padding:6px 2px 5px;height:var(--nav-h);transition:color .15s ease;line-height:var(--lh-tight)}.nav button.active{color:var(--accent-dim);font-weight:var(--fw-bold)}.nav .nav-ico-wrap{width:32px;height:28px;display:grid;place-items:center;border-radius:10px;transition:background .15s ease,transform .15s ease}.nav button.active .nav-ico-wrap{background:var(--accent-soft);transform:translateY(-1px)}.nav .nav-ico{width:22px;height:22px;display:block;grid-area:1 / 1;flex-shrink:0}.nav .nav-ico--on,.nav button.active .nav-ico--out{display:none}.nav button.active .nav-ico--on{display:block}.nav .nav-label{line-height:1.1;letter-spacing:.02em}input,textarea,select{width:100%;background:var(--bg-elev);border:1px solid var(--line);border-radius:12px;color:var(--text);font-family:inherit;font-size:var(--fs-base);font-weight:var(--fw-regular);line-height:var(--lh-snug);padding:12px 14px;outline:none}input:focus,textarea:focus,select:focus{border-color:var(--accent)}textarea{min-height:88px;resize:vertical}label.field{display:block;margin-bottom:12px}label.field span{display:block;margin-bottom:6px;color:var(--muted);font-size:var(--fs-sm);font-weight:var(--fw-medium);line-height:var(--lh-snug)}.score-dim{margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}.score-dim:last-of-type{border-bottom:0}.score-stars{display:flex;gap:6px;margin-top:8px}.score-stars button{flex:1;min-height:44px;border-radius:10px;border:1px solid var(--line);background:var(--bg-elev);color:var(--muted);font-weight:var(--fw-bold);font-size:var(--fs-base);cursor:pointer}.score-stars button.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.anchor-tip{margin-top:6px;font-size:var(--fs-sm);font-weight:var(--fw-regular);line-height:var(--lh-snug);color:var(--muted)}.list{display:flex;flex-direction:column;gap:8px}.list-item{background:var(--bg-elev);border:1px solid var(--line);border-radius:12px;padding:12px}.list-item .title{margin-bottom:4px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--bg-elev);color:var(--muted);font-size:var(--fs-sm);font-weight:var(--fw-semibold);line-height:var(--lh-tight);cursor:pointer}.chip.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat-box{background:var(--bg-elev);border-radius:12px;padding:12px 8px;text-align:center}.stat-box .num{font-size:var(--fs-2xl);font-weight:var(--fw-bold);line-height:var(--lh-tight);color:var(--accent)}.stat-box .lbl{font-size:var(--fs-xs);font-weight:var(--fw-medium);color:var(--muted);margin-top:2px;line-height:var(--lh-tight)}.stat-box .num.is-title{font-size:var(--fs-lg);color:var(--text)}.label-meta{color:var(--muted);font-size:inherit;font-weight:var(--fw-medium);letter-spacing:0}.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;text-align:center;font-size:var(--fs-xs)}.calendar .hd{color:var(--muted);padding:4px 0}.calendar 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10px;background:transparent;border:0;border-radius:10px;list-style:none;color:var(--text);font-size:var(--fs-md);font-weight:var(--fw-medium);letter-spacing:.015em;line-height:var(--lh-snug);text-align:left;transition:background .15s ease,color .15s ease}.handbook-item summary::-webkit-details-marker{display:none}.handbook-item summary:active{background:#1f8a630f}.handbook-item .hb-title{flex:1;min-width:0}.handbook-item summary:after{content:"";width:6px;height:6px;margin-right:2px;border-right:1.5px solid #9bb0a6;border-bottom:1.5px solid #9bb0a6;transform:rotate(-45deg);flex-shrink:0;opacity:.85;transition:transform .18s ease,border-color .15s ease}.handbook-item[open] summary{color:var(--accent-dim);font-weight:var(--fw-semibold);background:transparent}.handbook-item[open] summary:after{transform:rotate(45deg);border-color:var(--accent);opacity:1}.handbook-item .hb-body{margin:0 4px 12px;padding:10px 12px 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8px;font-size:var(--fs-base);font-weight:var(--fw-semibold);color:var(--text)}.rep-sec ul{margin:0;padding-left:18px;color:var(--text);font-size:var(--fs-md);line-height:var(--lh-body)}.issue{margin-bottom:12px;padding:10px 12px;background:var(--bg-elev);border-left:3px solid var(--warn);border-radius:8px;text-align:left}.issue .quote{color:var(--accent);font-size:var(--fs-md);font-weight:var(--fw-semibold);margin-bottom:4px}.issue .problem{font-size:var(--fs-md);color:var(--text);margin-bottom:4px;line-height:var(--lh-snug)}.issue .suggestion{font-size:var(--fs-sm);color:var(--muted);line-height:var(--lh-snug)}.focus{border-left:3px solid var(--accent);padding-left:12px}.focus p{margin:4px 0 0;font-size:var(--fs-md);line-height:var(--lh-body)}.transcript{white-space:pre-wrap;font-size:var(--fs-md);line-height:1.7;color:var(--text);background:var(--bg-elev);padding:12px;border-radius:10px;text-align:left}.speed-card{margin-top:12px}.speed-inline{padding:12px 14px;border-radius:14px;background:var(--bg-elev);border:1px solid var(--line)}.speed-inline p{margin:4px 0 0;font-size:var(--fs-sm);line-height:var(--lh-snug);color:var(--muted)}.tag.slow{color:var(--warn);border-color:#e6b35a66}.tag.ok{color:var(--accent);border-color:#1f8a6359}.tag.fast{color:var(--danger);border-color:#e86a6a66}.speed-min{display:flex;flex-direction:column;gap:6px;margin-top:8px}.speed-row{display:grid;grid-template-columns:5.2em 3em 4.6em 1fr;align-items:center;gap:6px;font-size:var(--fs-md);padding:6px 8px;background:var(--bg-elev);border-radius:8px}.speed-row .tag{justify-self:start;padding:2px 8px}.reading-list .reading-item{padding:14px;transition:background .15s,border-color .15s}.reading-list .reading-item .title{margin-bottom:0}.reading-preview{margin-top:8px;color:var(--muted);font-size:var(--fs-sm);line-height:var(--lh-snug)}.reading-text{font-size:var(--fs-lg);line-height:2;color:var(--text);background:var(--bg);padding:14px;border-radius:12px;margin-top:10px;max-height:46vh;overflow-y:auto;letter-spacing:.02em;text-align:left}.reading-live{max-height:28vh;font-size:var(--fs-base);margin-top:8px}.rec-subtitle{margin-top:10px;padding:10px 12px;background:var(--bg-elev);border:1px solid var(--line);border-radius:10px}.rec-subtitle .transcript{margin:0;font-size:var(--fs-md);line-height:1.8;white-space:pre-wrap}.task-hero{border:1px solid rgba(31,138,99,.2);background:linear-gradient(160deg,var(--accent-soft),#fff 60%)}.task-hero>h2{margin-top:12px}.task-hero .btn.primary{font-size:var(--fs-lg);padding:13px 0;margin-top:14px}.hist-wrap summary{display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;padding:2px 0}.hist-wrap summary::-webkit-details-marker{display:none}.hist-wrap .hist-caret{color:var(--muted);font-size:var(--fs-md);transition:transform .2s}.hist-wrap[open] .hist-caret{transform:rotate(180deg)}.hist-wrap[open] summary{margin-bottom:10px}.reading-item{cursor:pointer}.reading-item:active,.reading-item:hover{background:var(--accent-soft);border-color:#1f8a6347}#reading-reader{position:relative;margin:-8px -4px 0}.reader-shell{display:flex;flex-direction:column;height:calc(100% - var(--nav-h) - var(--safe-b) - 88px);min-height:360px;max-height:calc(100dvh - var(--nav-h) - var(--safe-b) - 72px);border-radius:18px;border:1px solid rgba(31,138,99,.18);background:var(--bg-card);overflow:hidden;box-shadow:var(--shadow)}.reader-head{display:flex;align-items:flex-start;gap:10px;padding:12px 14px 8px}.reader-titles{flex:1;min-width:0}.reader-head h3{margin:2px 0 0;font-size:var(--fs-lg);font-weight:var(--fw-bold);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.reader-text{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;font-size:1.125rem;line-height:2.1;color:var(--text);background:#fbfcfb;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 16px;letter-spacing:.02em;text-align:left}.reader-rec{padding:12px 14px 14px;background:#f3f7f5}.reader-rec .recorder{margin-bottom:8px}.reader-rec .rec-stage{min-height:120px}.reader-rec .rec-time{font-size:2.1rem}@media(max-width:420px){.panel-hero h2,.page-title,.task-hero>h2{font-size:1.1875rem}.rec-time{font-size:2.3rem}.improv-hero .timer-display{font-size:2.4rem}.reader-text{font-size:var(--fs-lg);line-height:2;padding:16px 14px}}.card .row-between>h3{margin:0}