:root{--bg: #f6f7f9;--card: #ffffff;--card-2: #f0f2f5;--line: #e3e7ec;--line-soft: #eef1f4;--ink: #1b242c;--ink-2: #5a6b78;--ink-3: #97a4ae;--acc: #00c389;--acc-deep: #00996c;--acc-dim: rgba(0, 195, 137, .1);--gold: #e8890c;--gold-dim: rgba(232, 137, 12, .12);--warn: #e5484d;--radius: 14px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}#root{min-height:100dvh}.app{max-width:520px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;padding-bottom:calc(64px + env(safe-area-inset-bottom))}.page{flex:1;padding:18px 16px 24px;animation:pagein .28s ease}@keyframes pagein{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.brand{display:flex;align-items:baseline;gap:8px}.brand-name{font-size:20px;font-weight:800;letter-spacing:1px}.brand-name em{font-style:normal;color:var(--acc)}.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:2px}.card{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);padding:16px;margin-top:12px;box-shadow:0 1px 2px #1018200a}.card.tight{padding:12px 14px}.card-title{font-size:12px;color:var(--ink-3);letter-spacing:2px;margin:0 0 10px;font-weight:600}.countdown{display:flex;align-items:baseline;gap:6px}.countdown .num{font-size:40px;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;letter-spacing:-1px}.countdown .unit{font-size:13px;color:var(--ink-2)}.countdown-label{font-size:11px;color:var(--ink-3);letter-spacing:1px;margin-top:2px}.ex-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}.ex-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px;text-align:left;color:var(--ink);cursor:pointer;transition:border-color .15s,background .15s;font-family:inherit;box-shadow:0 1px 2px #1018200a}.ex-item:active{border-color:var(--acc)}.ex-item.on{border-color:var(--acc);background:var(--acc-dim)}.ex-item .ex-name{font-size:15px;font-weight:700}.ex-item .ex-meta{font-size:11px;color:var(--ink-3);margin-top:4px;line-height:1.5}.ex-item .ex-tag{display:inline-block;font-size:10px;color:var(--acc-deep);border:1px solid rgba(0,195,137,.4);border-radius:4px;padding:1px 5px;margin-top:8px;letter-spacing:1px}.ex-item.disabled{opacity:.45;pointer-events:none}.cam-wrap{position:relative;width:100%;aspect-ratio:3 / 4;background:#0e141b;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}.cam-wrap video,.cam-wrap canvas.overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.cam-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:#c8d4dc;font-size:13px;text-align:center;padding:0 24px;line-height:1.7}.rep-big{position:absolute;top:10px;right:12px;font-size:46px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;text-shadow:0 1px 8px rgba(0,0,0,.65);line-height:1}.rep-big small{font-size:12px;font-weight:600;color:#7df0cd;display:block;text-align:right;letter-spacing:2px;margin-bottom:2px}.exam-timer{position:absolute;top:10px;left:12px;font-size:26px;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;text-shadow:0 1px 8px rgba(0,0,0,.65)}.form-tip{position:absolute;left:12px;bottom:12px;right:12px;font-size:13px;color:#fff;background:#0c1117d9;border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:8px 12px;text-align:center}.form-tip.good{color:#7df0cd;border-color:#00e5a066}.form-tip.bad{color:#ffb3ad;border-color:#ff6b5e66}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--acc);color:#fff;border:none;border-radius:12px;font-size:15px;font-weight:700;font-family:inherit;padding:12px 20px;cursor:pointer;letter-spacing:1px}.btn:disabled{opacity:.35;cursor:default}.btn.ghost{background:var(--card);color:var(--acc-deep);border:1px solid rgba(0,195,137,.45)}.btn.danger{background:var(--card);color:var(--warn);border:1px solid rgba(229,72,77,.4)}.btn.block{width:100%}.btn-row{display:flex;gap:10px;margin-top:12px}.btn-row .btn{flex:1}.score-hero{text-align:center;padding:8px 0 4px}.score-hero .val{font-size:56px;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.1}.score-hero .lbl{font-size:12px;color:var(--ink-3);letter-spacing:3px;margin-top:2px}.kv{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line-soft);font-size:14px}.kv:last-child{border-bottom:none}.kv .k{color:var(--ink-2)}.kv .v{font-variant-numeric:tabular-nums;font-weight:700}.kv .v.acc{color:var(--acc-deep)}.kv .v.gold{color:var(--gold)}.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;background:#fffffffa;border-top:1px solid var(--line);display:flex;padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:50}.tab{flex:1;background:none;border:none;cursor:pointer;color:var(--ink-3);font-family:inherit;font-size:10px;letter-spacing:1px;display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 0}.tab svg{width:21px;height:21px}.tab.on{color:var(--acc-deep)}.plan-day{border-left:2px solid var(--acc);padding:2px 0 2px 12px;margin-top:14px}.plan-day h4{margin:0 0 6px;font-size:14px}.plan-day .task{font-size:13px;color:var(--ink-2);line-height:1.8}.pill{display:inline-block;font-size:11px;color:var(--acc-deep);background:var(--acc-dim);border-radius:999px;padding:2px 10px;margin-right:6px}.pill.warn{color:var(--warn);background:#e5484d17}.pill.gold{color:var(--gold);background:var(--gold-dim)}.std-table{width:100%;border-collapse:collapse;font-size:13px}.std-table th{text-align:left;color:var(--ink-3);font-weight:600;font-size:11px;letter-spacing:1px;padding:6px 8px;border-bottom:1px solid var(--line)}.std-table td{padding:8px;border-bottom:1px solid var(--line-soft);font-variant-numeric:tabular-nums}.std-table td.hi{color:var(--gold);font-weight:700}.src-note{font-size:11px;color:var(--ink-3);line-height:1.7;margin-top:10px}.sparkline{width:100%;height:90px;display:block}.empty{text-align:center;color:var(--ink-3);font-size:13px;padding:26px 0;line-height:1.8}.streak-row{display:flex;align-items:baseline;gap:8px}.streak-row .big{font-size:30px;font-weight:800;color:var(--acc-deep);font-variant-numeric:tabular-nums}.h1{font-size:22px;font-weight:800;letter-spacing:.5px;margin:14px 0 2px}.sub{font-size:13px;color:var(--ink-2);line-height:1.8;margin:0}.divider{height:1px;background:var(--line-soft);margin:18px 0 0}.footnote{font-size:11px;color:var(--ink-3);line-height:1.8;margin-top:14px}.seg{display:flex;background:var(--card-2);border:1px solid var(--line-soft);border-radius:10px;padding:3px;margin-top:10px}.seg button{flex:1;background:none;border:none;color:var(--ink-2);font-family:inherit;font-size:13px;padding:8px 0;border-radius:8px;cursor:pointer}.seg button.on{background:#fff;color:var(--acc-deep);font-weight:700;box-shadow:0 1px 3px #1018201a}select,input[type=number]{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:14px;padding:10px 12px;width:100%}input[type=number]{font-variant-numeric:tabular-nums}.field{margin-top:12px}.field label{display:block;font-size:12px;color:var(--ink-3);letter-spacing:1px;margin-bottom:6px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}