:root{--bg: #f6f7f9;--panel: #ffffff;--ink: #1f2933;--muted: #64707d;--line: #dce2e8;--teal: #167f7a;--teal-dark: #0f5f5b;--coral: #d85d4b;--yellow: #f4b740;--blue: #376fba;--green-soft: #e8f5f2;--red-soft: #fff0ed;--shadow: 0 12px 32px rgba(31, 41, 51, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif;letter-spacing:0}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{width:min(100%,480px);margin:0 auto;padding:14px 10px calc(28px + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}.topbar h1{margin:2px 0 0;font-size:28px;line-height:1.1}.eyebrow,.section-kicker{margin:0;color:var(--teal);font-size:13px;font-weight:700}.today-pill{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:8px 11px;color:var(--muted);white-space:nowrap;font-size:13px}.tabs{position:sticky;top:0;z-index:10;display:flex;gap:8px;margin:0 -10px 12px;padding:8px 10px;background:#f6f7f9f5;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab,.reason-filter{flex:0 0 auto;border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:8px;min-height:42px;padding:9px 12px}.tab.is-active,.reason-filter.is-active{border-color:var(--teal);background:var(--green-soft);color:var(--teal-dark);font-weight:700}.view{display:none}.view.is-active,.speed-layout{display:block}.side-stack{display:grid;gap:12px;margin-top:12px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px;box-shadow:0 8px 22px #1f29330f}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.panel-head.compact{margin-bottom:12px}.panel h2{margin:3px 0 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span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}.stat strong{font-size:18px;font-variant-numeric:tabular-nums}.question-box{border:1px solid var(--line);border-radius:8px;background:#fbfcfd;padding:12px}.question-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted)}.type-badge{display:inline-flex;align-items:center;min-height:28px;border-radius:999px;background:var(--green-soft);color:var(--teal-dark);padding:5px 10px;font-size:13px;font-weight:800}.question-text{min-height:128px;display:grid;place-items:center;margin:12px 0;border-radius:8px;background:#fff;border:1px solid var(--line);padding:16px 12px;text-align:center;font-size:28px;line-height:1.28;font-weight:800}.answer-row{display:grid;grid-template-columns:minmax(0,1fr) 38px;gap:10px;align-items:center}.answer-row input{font-size:23px;font-weight:800;text-align:center}.unit{color:var(--muted);font-weight:800;min-width:0;text-align:center}.answer-row .primary-btn{grid-column:1 / -1}.choice-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.choice-row button{min-height:50px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);font-weight:800}.choice-row button:hover{border-color:var(--teal)}.trainer-actions,.parse-actions,.reason-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}.trainer-actions #startBtn,.parse-actions #parseBtn{grid-column:1 / -1}.primary-btn,.ghost-btn{border:1px solid transparent;border-radius:8px;min-height:46px;padding:0 16px;font-weight:800}.primary-btn{background:var(--teal);color:#fff}.primary-btn:hover{background:var(--teal-dark)}.ghost-btn{background:#fff;border-color:var(--line);color:var(--ink)}.ghost-btn:hover{border-color:var(--teal);color:var(--teal-dark)}.ghost-btn.is-prominent{background:var(--teal);border-color:var(--teal);color:#fff}button:disabled,input:disabled{cursor:not-allowed;opacity:.62}.feedback{display:grid;gap:4px;margin-top:14px;border-radius:8px;border:1px solid var(--line);background:#fff;padding:12px 14px}.feedback.good{border-color:#167f7a59;background:var(--green-soft)}.feedback.bad{border-color:#d85d4b59;background:var(--red-soft)}.feedback span{color:var(--muted)}.inline-message{margin-top:12px;border:1px solid rgba(22,127,122,.28);border-radius:8px;background:var(--green-soft);color:var(--teal-dark);padding:10px 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