:root{--cream:#fff6ee;--paper:#fff;--coral:#ff7a59;--coral-deep:#e8613f;--teal:#2cc6b7;--sun:#ffc542;--grape:#7b6ef6;--ink:#3a2e2a;--ink-soft:#7a6a62;--line:#f0e3d8;--shadow:rgba(120,74,52,.14);--good:#4cb782;--warn:#f0a93b;--bad:#e86a6a;--rail:#fff;--stage:#fffdfb;--r-sm:12px;--r:18px;--r-lg:26px;--f-round:ui-rounded,"SF Pro Rounded","Hiragino Maru Gothic ProN",system-ui,sans-serif;--f-body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}@media (prefers-color-scheme:dark){:root{--cream:#241c1e;--paper:#2e2427;--coral:#ff8a6b;--coral-deep:#ff7a59;--teal:#3dd6c6;--sun:#ffd062;--grape:#9a8dff;--ink:#f5e9e2;--ink-soft:#b79e93;--line:#3c2f31;--shadow:rgba(0,0,0,.4);--good:#5fcb95;--warn:#f5b857;--bad:#f08585;--rail:#2a2124;--stage:#241c1e}}:root[data-theme=dark]{--cream:#241c1e;--paper:#2e2427;--coral:#ff8a6b;--coral-deep:#ff7a59;--teal:#3dd6c6;--sun:#ffd062;--grape:#9a8dff;--ink:#f5e9e2;--ink-soft:#b79e93;--line:#3c2f31;--shadow:rgba(0,0,0,.4);--good:#5fcb95;--warn:#f5b857;--bad:#f08585;--rail:#2a2124;--stage:#241c1e}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--cream);color:var(--ink);font-family:var(--f-body);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}@keyframes bob{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.04)}to{transform:scale(1)}}@keyframes 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ease-in-out .6s infinite}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:0 3px 12px var(--shadow)}.qmeta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;font-weight:700;font-family:var(--f-round);color:var(--ink-soft);margin-bottom:10px}.tag{padding:4px 10px;border-radius:999px;background:color-mix(in srgb,var(--grape) 15%,transparent);color:var(--grape)}.tag.diff{background:color-mix(in srgb,var(--teal) 16%,transparent);color:var(--teal)}.themechip{background:color-mix(in srgb,var(--sun) 22%,transparent)!important;color:var(--coral-deep)!important}.qstem{font-size:19px;font-family:var(--f-round);font-weight:700;line-height:1.5;margin:4px 0 12px}.opts{display:grid;grid-gap:10px;gap:10px}.opt{display:flex;align-items:center;gap:12px;text-align:left;background:var(--paper);border:2px solid var(--line);border-radius:16px;padding:13px 16px;font-size:16px;width:100%;font-weight:600;transition:transform .12s,border-color .2s,background .2s;color:var(--ink)}.opt:hover:not(:disabled){transform:translateY(-2px);border-color:var(--grape)}.opt .key{width:28px;height:28px;flex:none;border-radius:9px;background:var(--cream);display:grid;place-items:center;font-family:var(--f-round);font-weight:800;font-size:14px;border:1px solid var(--line)}.opt.correct{border-color:var(--good);background:color-mix(in srgb,var(--good) 14%,transparent);animation:pop .4s}.opt.correct .key{background:var(--good);color:#fff;border-color:var(--good)}.opt.wrong{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 12%,transparent)}.opt.wrong .key{background:var(--bad);color:#fff;border-color:var(--bad)}.feedback{border-radius:16px;padding:14px 16px;font-size:15px;line-height:1.55;margin-top:12px;align-items:flex-start;gap:12px;display:flex;animation:rise .3s}.feedback.ok{background:color-mix(in srgb,var(--good) 14%,transparent)}.feedback.no{background:color-mix(in srgb,var(--bad) 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.cf{font-size:16px;display:inline-block;animation:comboFlame .6s ease infinite alternate}.quest-step{margin-left:10px;font-family:var(--f-round);font-weight:700;font-size:13px;color:var(--ink-soft);white-space:nowrap}.quest-step b{color:var(--grape)}.quest-book{display:flex;gap:7px;margin:13px 0 10px}.page{flex:1 1;height:36px;border-radius:10px;border:2px dashed var(--line);background:var(--cream);display:grid;place-items:center;font-size:17px;transition:transform .3s,background .4s,border-color .4s}.page.fixed{border-style:solid;border-color:var(--good);background:color-mix(in srgb,var(--good) 16%,transparent);animation:pop .45s}.page.torn{border-style:solid;border-color:var(--bad);background:color-mix(in srgb,var(--bad) 10%,transparent)}.quest-bar{height:8px;background:var(--line);border-radius:999px;overflow:hidden}.quest-bar i{display:block;height:100%;width:0;border-radius:999px;transition:width .45s;background:linear-gradient(90deg,var(--grape),var(--coral))}.quest-result{text-align:center;padding:10px 6px}.quest-result .qr-emo{font-size:46px;margin:4px 0 6px}.quest-result h3{margin:0 0 6px;font-family:var(--f-round);font-size:19px}.qr-act{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}.btn-primary{background:var(--coral);color:#fff;border-radius:14px;box-shadow:0 4px 12px color-mix(in srgb,var(--coral) 38%,transparent)}.btn-ghost,.btn-primary{font-family:var(--f-round);font-weight:700;padding:11px 20px;font-size:15px}.btn-ghost{background:var(--paper);color:var(--ink-soft);border:1.5px solid var(--line);border-radius:14px}.milo-eye{transform-box:fill-box;transform-origin:center;animation:milo-blink 5s infinite}@keyframes milo-blink{0%,94%,to{transform:scaleY(1)}97%{transform:scaleY(.1)}}.stage-scope{min-height:100vh;display:flex;flex-direction:column;gap:16px;padding:18px 22px;max-width:1440px;margin:0 auto;font-family:var(--f-body)}.stage-scope 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13px;font-size:14px;font-weight:700;font-family:var(--f-round);box-shadow:0 2px 6px var(--shadow);color:var(--ink);white-space:nowrap}.stage-scope .chip.mapbtn{cursor:pointer}.stage-scope .chip.growth{background:var(--good);color:#fff;border-color:transparent;box-shadow:0 3px 10px color-mix(in srgb,var(--good) 45%,transparent);cursor:pointer}.stage-scope .avatar{background:var(--grape);color:#fff;place-items:center;font-weight:800;font-family:var(--f-round);box-shadow:0 3px 8px var(--shadow);flex:none}.stage-scope .avatar,.stage-scope .theme-btn{width:40px;height:40px;border-radius:50%;display:grid}.stage-scope .theme-btn{background:var(--paper);border:1px solid var(--line);place-items:center;font-size:18px;box-shadow:0 2px 6px var(--shadow)}.stage-scope .stage-grid{flex:1 1;display:grid;grid-template-columns:92px 1fr 302px;grid-gap:16px;gap:16px;min-height:0}.stage-scope .rail{background:var(--rail);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px 10px;display:flex;flex-direction:column;gap:8px;box-shadow:0 6px 18px var(--shadow)}.stage-scope .rail .rl-title{font-size:11px;letter-spacing:.08em;text-align:center;color:var(--ink-soft);font-weight:700;margin:2px 0 4px}.stage-scope .mode{display:flex;flex-direction:column;align-items:center;gap:5px;padding:11px 4px;border-radius:16px;color:var(--ink-soft);font-family:var(--f-round);font-weight:700;font-size:12px;transition:transform .15s,background .2s,color .2s;width:100%}.stage-scope .mode .ico{width:30px;height:30px}.stage-scope .mode:hover{background:color-mix(in srgb,var(--coral) 10%,transparent);transform:translateY(-1px)}.stage-scope .mode[aria-selected=true]{color:#fff}.stage-scope .mode[data-mode=chat][aria-selected=true]{background:var(--teal);box-shadow:0 6px 14px color-mix(in srgb,var(--teal) 45%,transparent)}.stage-scope .mode[data-mode=learn][aria-selected=true]{background:var(--coral);box-shadow:0 6px 14px color-mix(in srgb,var(--coral) 45%,transparent)}.stage-scope .mode[data-mode=practice][aria-selected=true]{background:var(--grape);box-shadow:0 6px 14px color-mix(in srgb,var(--grape) 45%,transparent)}.stage-scope .mode[data-mode=exam][aria-selected=true]{background:var(--ink);box-shadow:0 6px 14px var(--shadow)}.stage-scope .rail .spacer{flex:1 1}.stage-scope .mood{font-size:11px;color:var(--ink-soft);line-height:1.4;background:color-mix(in srgb,var(--sun) 18%,transparent);font-weight:600}.stage-scope .lv-chip,.stage-scope .mood{text-align:center;border-radius:14px;padding:8px 6px}.stage-scope .lv-chip{margin-top:8px;font-family:var(--f-round);font-weight:800;font-size:13px;color:var(--coral-deep);background:color-mix(in srgb,var(--coral) 12%,transparent)}.stage-scope .lv-chip small{display:block;font-size:10px;color:var(--ink-soft);font-weight:700;margin-top:1px}.stage-scope .stage{background:var(--stage);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;display:flex;flex-direction:column;min-height:0;position:relative;overflow:hidden;box-shadow:0 10px 30px var(--shadow)}.stage-scope .stage:before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(120% 80% at 50% -10%,color-mix(in srgb,var(--coral) 9%,transparent),transparent 60%)}.stage-scope .stage-head{display:flex;align-items:center;gap:12px;position:relative;z-index:1}.stage-scope .stage-head h2{margin:0;font-family:var(--f-round);font-size:18px;color:var(--ink)}.stage-scope .stage-head p{margin:2px 0 0;font-size:13px;color:var(--ink-soft)}.stage-scope .mode-tag{margin-left:auto;font-family:var(--f-round);font-weight:700;font-size:12px;padding:5px 12px;border-radius:999px;color:#fff}.stage-scope .panel-wrap{flex:1 1;min-height:0;position:relative;z-index:1;margin-top:14px;overflow-y:auto}.stage-scope .panel{display:flex;flex-direction:column;gap:12px;animation:rise .35s ease}.stage-scope .bubble{max-width:82%;padding:12px 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12px;border-radius:12px;font-size:12.5px;font-family:var(--f-round);font-weight:700;background:color-mix(in srgb,var(--ink) 5%,transparent);color:var(--ink-soft);margin-bottom:10px}.stage-scope .chat-voicebar.live{background:color-mix(in srgb,var(--good) 12%,transparent);color:var(--ink)}.stage-scope .chat-voicebar .cvb-txt{flex:1 1;min-width:0}.stage-scope .chat-voicebar .cvb-ph{display:inline-block;animation:pulse 1.1s ease-in-out infinite}.stage-scope .chat-voicebar .cvb-dot{width:9px;height:9px;border-radius:50%;flex:none}.stage-scope .chat-voicebar .cvb-dot.on{background:var(--good);box-shadow:0 0 0 0 color-mix(in srgb,var(--good) 60%,transparent);animation:pulse 1.6s ease-in-out infinite}.stage-scope .chat-voicebar .cvb-dot.muted{background:var(--warn)}.stage-scope .chat-voicebar .cvb-dot.off{background:var(--ink-soft);opacity:.5}.stage-scope .chat-voicebar .cvb-act{flex:none;background:transparent;border:1px solid var(--line);color:var(--ink);font-family:var(--f-round);font-weight:700;font-size:11.5px;padding:4px 10px;border-radius:999px;cursor:pointer}.stage-scope .chat-voicebar .cvb-act:hover{background:var(--paper)}.stage-scope .chat-voicebar .cvb-act.end{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}.stage-scope .side{display:flex;flex-direction:column;gap:14px;min-height:0}.stage-scope .box{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:0 6px 18px var(--shadow)}.stage-scope .box h4{margin:0 0 12px;font-family:var(--f-round);font-size:15px;display:flex;align-items:center;gap:8px;color:var(--ink)}.stage-scope .box h4 .sm{margin-left:auto;font-size:12px;color:var(--ink-soft);font-weight:600}.stage-scope .task{display:flex;align-items:center;gap:11px;padding:9px 0;font-size:14px;font-weight:600;border-bottom:1px solid var(--line);color:var(--ink)}.stage-scope .task:last-child{border-bottom:none}.stage-scope 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.rec .later{background:color-mix(in srgb,#fff 22%,transparent);color:#fff;font-family:var(--f-round);font-weight:700;border-radius:13px;padding:11px 15px;font-size:14px}.stage-scope .rec .soft{font-size:11px;opacity:.85;margin:10px 0 0;text-align:center}.stage-scope .mastery{display:flex;gap:5px;flex-wrap:wrap}.stage-scope .cell{width:20px;height:20px;border-radius:6px}.stage-scope .legend{display:flex;gap:12px;margin-top:10px;font-size:11px;color:var(--ink-soft);font-weight:600;flex-wrap:wrap}.stage-scope .legend b{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:4px;vertical-align:-1px}.stage-scope .progress{height:9px;background:var(--line);border-radius:999px;overflow:hidden}.stage-scope .progress i{display:block;height:100%;background:var(--grape);border-radius:999px;transition:width .4s}.stage-scope .exam-nav{display:flex;justify-content:space-between;gap:10px;margin-top:14px}.stage-scope .exam-result{text-align:center;padding:14px}.stage-scope .exam-result .score{font-family:var(--f-round);font-weight:800;font-size:44px;color:var(--grape)}.stage-scope .dims{display:grid;grid-gap:10px;gap:10px;margin-top:12px;text-align:left}.stage-scope .dim{display:grid;grid-template-columns:64px 1fr 40px;align-items:center;grid-gap:10px;gap:10px;font-size:14px;font-weight:600;color:var(--ink)}.stage-scope .dim .bar{height:10px;background:var(--line);border-radius:999px;overflow:hidden}.stage-scope .dim .bar i{display:block;height:100%;border-radius:999px}.stage-scope .warn-pill{font-size:12px;font-weight:700;font-family:var(--f-round);color:var(--ink);background:color-mix(in srgb,var(--sun) 22%,transparent);padding:5px 12px;border-radius:999px}@media (max-width:900px){.stage-scope .stage-grid{grid-template-columns:1fr}.stage-scope .rail{flex-direction:row;overflow-x:auto}.stage-scope .lv-chip,.stage-scope .mood,.stage-scope .rail .rl-title,.stage-scope .rail .spacer{display:none}.stage-scope .mode{flex:1 1;flex-direction:row;justify-content:center}.stage-scope .side{flex-direction:row;flex-wrap:wrap}.stage-scope .box{flex:1 1;min-width:220px}}