:root{color-scheme:light;--bg:#e7eee9;--card:#fff;--ink:#17241f;--muted:#5c6b65;--line:#d5e0da;--brand:#1f6b4a;--brand-dark:#164f37;--soft:#e8f6ef;--warn:#9a3412;--bad:#b42318;--bad-bg:#fdecec;--ok:#157a45}*{box-sizing:border-box}body,html{margin:0;padding:0}body{min-height:100dvh;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;background:radial-gradient(900px 280px at 50% -40px,#d5ebe2,transparent 70%),var(--bg);color:var(--ink);font-size:16px;line-height:1.5;-webkit-tap-highlight-color:transparent}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--brand-dark)}.shell{width:min(480px,100%);margin:0 auto;min-height:100dvh;padding:calc(14px + env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom))}.shell.with-bar{padding-bottom:calc(148px + env(safe-area-inset-bottom))}.brand{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px;color:var(--brand-dark);font-size:13px;letter-spacing:.04em}.card{background:var(--card);border-radius:20px;padding:18px 16px;box-shadow:0 10px 28px rgba(23,36,31,.06)}.card+.card{margin-top:12px}.kicker{margin:0 0 6px;color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.06em}.facts{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:8px;gap:8px;margin:16px 0 0;padding:0;list-style:none}.facts li{background:#f4f8f6;border-radius:14px;padding:10px 8px;text-align:center}.facts b{display:block;font-size:20px;line-height:1.2}.facts span{color:var(--muted);font-size:12px}h1{font-size:26px;line-height:1.3;margin:0 0 8px}h2{font-size:20px;line-height:1.35;margin:0}.muted{color:var(--muted);font-size:14px}.lede{margin:8px 0 0}.identity{margin-top:6px}.field{display:block;margin-top:14px}.field span{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;color:#3d4f48;font-size:14px;font-weight:700}.field em{font-style:normal;font-weight:600;font-size:12px;color:var(--brand-dark);background:var(--soft);border-radius:999px;padding:2px 8px}.field input{height:52px;border:1.5px solid #c5d4cc;border-radius:14px;background:#fff;padding:0 14px}.field input:focus{border-color:var(--brand);background:#fff}.field.locked input{border-color:transparent;background:#f3f7f5;color:var(--ink);font-weight:700}.hint{margin:12px 0 0;color:var(--muted);font-size:13px}input[type=number],input[type=password],input[type=search],input[type=text],textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:#fff;font-size:16px}textarea{min-height:160px;resize:vertical;line-height:1.6}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 14px;border-radius:12px;border:1px solid transparent;background:#fff;text-decoration:none}.btn.primary{width:100%;background:var(--brand);color:#fff}.btn.primary:disabled{opacity:.55}.btn.ghost{border-color:var(--line);background:#fff}.btn.text{min-height:36px;padding:0;border:0;background:transparent;color:var(--muted);text-decoration:underline}.stack{flex-direction:column;margin-top:16px}.row,.stack{display:flex;gap:10px}.row .option{width:auto;flex:1 1;margin-bottom:0}.row .btn{flex:1 1}.topbar{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}.timer{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-size:20px;font-weight:700;color:var(--brand-dark)}.timer.urgent{color:var(--bad)}.track{height:6px;border-radius:99px;background:#d7e3dc;overflow:hidden;margin:10px 0}.track-bar{height:100%;background:var(--brand)}.dots{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 12px}.dot{width:22px;height:28px;border-radius:7px;border:1px solid #c5d4cc;background:#fff;padding:0}.dot.done{background:var(--brand);border-color:var(--brand)}.dot.current{outline:2px solid var(--brand-dark);outline-offset:1px}.section-label{margin:0 0 6px;color:var(--brand-dark);font-size:13px;font-weight:700}.prompt{font-size:18px;line-height:1.45;margin:0 0 14px;white-space:pre-wrap}.option{width:100%;display:flex;align-items:center;gap:12px;text-align:left;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px;margin-bottom:10px}.option .key{width:32px;height:32px;flex:none;display:grid;place-items:center;border-radius:10px;background:#eef3f0;font-weight:700}.option.on{border-color:var(--brand);background:var(--soft)}.option.on .key{background:var(--brand);color:#fff}.lead{margin:0 0 10px;color:var(--muted);font-size:14px;line-height:1.5}.ask-box{margin:0 0 12px;padding:12px 14px;border-radius:14px;background:var(--soft);border-left:4px solid var(--brand);font-size:17px;font-weight:700;line-height:1.45}.sheet-wrap{margin:0 0 12px;overflow-x:auto}.sheet{width:100%;border-collapse:collapse;font-size:14px;line-height:1.35}.sheet caption{caption-side:top;padding:0 0 8px;font-weight:700;text-align:center;color:var(--ink)}.sheet td,.sheet th{border:1px solid #c9d7d0;padding:8px 6px;vertical-align:middle}.sheet thead th{background:#e7f3ec;font-weight:700;text-align:center;white-space:nowrap}.sheet td.item{text-align:left}.sheet td.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:700}.sheet tbody tr:nth-child(2n){background:#f7faf8}.prompt.ask{font-weight:700}.nav{position:-webkit-sticky;position:sticky;bottom:0;display:flex;gap:10px;padding-top:12px;background:linear-gradient(transparent,var(--bg) 20%)}.nav .btn{flex:1 1;width:auto}.error{margin-top:12px;color:var(--bad);background:var(--bad-bg);border-radius:12px;padding:10px 12px}.foot{margin-top:18px;text-align:center;font-size:15px}.mask{position:fixed;inset:0;background:rgba(23,36,31,.45);display:flex;align-items:flex-end;justify-content:center;padding:16px;z-index:20}.dialog{width:min(480px,100%);background:#fff;border-radius:18px;padding:18px 16px calc(16px + env(safe-area-inset-bottom))}.score-pair{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px;margin-top:16px;align-items:start}.score-pair .score-label{margin-top:0}.score-num{font-size:48px;line-height:1;font-weight:700;margin:4px 0 8px}.score-num span{font-size:18px;color:var(--muted);font-weight:600}.score-num.wait{font-size:28px;color:var(--warn);padding-top:8px}.score-label{margin:16px 0 0;color:var(--muted);font-size:13px}.total-side{padding-left:12px;border-left:1px solid var(--line)}.total-side.done .score-num{color:var(--brand-dark)}.marks{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px}.mark{min-width:52px;padding:6px 8px;border-radius:10px;background:#f4f7f5;font-size:13px;text-align:center}.mark.ok{background:var(--soft);color:var(--ok);font-weight:700}.mark.bad{background:var(--bad-bg);color:var(--bad)}.q header{display:flex;justify-content:space-between;align-items:center;gap:8px}.pill{font-style:normal;font-size:12px;color:var(--warn);background:#fff7ed;border-radius:999px;padding:3px 8px}.pill,.saved{font-weight:700}.saved{margin:8px 0 0;padding:10px 12px;border-radius:12px;background:var(--soft);color:var(--brand-dark)}.obj{display:block;width:100%;margin-top:10px;padding:12px;border:0;border-left:4px solid #c5d4cc;border-radius:12px;background:#f7faf8;text-align:left}.obj.ok{border-left-color:var(--ok);background:#f3fbf6}.obj.bad{border-left-color:var(--bad);background:#fff6f6}.obj-top{display:flex;justify-content:space-between;gap:8px}.obj-top em{font-style:normal;font-weight:700}.obj.ok .obj-top em{color:var(--ok)}.obj.bad .obj-top 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8px;border-radius:999px;font-size:12px;background:#eef2f0;color:var(--muted)}.tag.pending{background:#fff4e5;color:var(--warn)}.tag.graded{background:var(--soft);color:var(--ok)}.tag.live{background:#e8f1fb;color:#1d4e89}.person{display:block;text-decoration:none;color:inherit;background:#fff;border-radius:18px;padding:14px 14px 14px 16px;margin-bottom:10px;box-shadow:0 8px 20px rgba(23,36,31,.05);border-left:4px solid #d5e0da}.person.pending{border-left-color:#d97706}.person.live{border-left-color:#3b82c4}.person.graded{border-left-color:var(--brand)}.person-link{display:block;color:inherit;text-decoration:none}.person-top,.spread{justify-content:space-between;gap:8px}.actions,.person-top,.spread{display:flex;align-items:center}.actions{gap:14px}.btn.text.danger{color:var(--bad)}.q{border-top:1px solid var(--line);padding:12px 0}.q header{font-size:13px;margin-bottom:4px}.q.ok header{color:var(--ok)}.q.bad header{color:var(--bad)}.q p{margin:0 0 6px}.answer-box,.q p{white-space:pre-wrap}.answer-box{background:#f6f8f7;border-radius:12px;padding:12px}.rubric{margin-top:8px;color:var(--muted);font-size:14px}.rubric summary{cursor:pointer;color:var(--brand-dark)}.grade-bar{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:min(480px,100%);background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(23,36,31,.06);padding:10px 16px calc(10px + env(safe-area-inset-bottom));z-index:10}.grade-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;margin-bottom:8px}.shots{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.shots img{object-fit:cover;border-radius:10px;background:#eef2f0}.shot,.shots img{width:96px;height:96px}.shot{position:relative}.shot button{position:absolute;right:4px;bottom:4px;border:0;border-radius:8px;background:rgba(23,36,31,.72);color:#fff;font-size:12px;min-height:28px;padding:0 6px}.upload{width:100%;margin-top:10px;position:relative;overflow:hidden}.upload input{position:absolute;inset:0;opacity:0}.jump{display:flex;gap:14px;font-size:14px}.jump,.search{margin:12px 0}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}