:root{color-scheme:light;--ink:#162019;--muted:#5d685f;--paper:#f4f0e7;--panel:#fffdf7;--line:#d7d4c9;--signal:#b7df00;--signal-ink:#172000;--red:#b43b32;--warm:#aa6509;--blue:#236d8b;--shadow:0 20px 60px rgba(21,31,23,.08);font-family:Inter,"Noto Sans TC",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.7}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.lesson-content{width:min(100%,1180px);margin:auto;padding:clamp(22px,5vw,72px)}.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(270px,.65fr);gap:clamp(32px,7vw,100px);align-items:end;padding:clamp(28px,6vw,76px) 0 clamp(54px,8vw,104px);border-bottom:2px solid var(--ink)}.kicker{margin:0 0 14px;color:#6a7b00;font:800 .75rem/1.2 "Space Grotesk",sans-serif;letter-spacing:.16em;text-transform:uppercase}.hero h1,.block h2,.block h3{font-family:"Space Grotesk","Noto Sans TC",sans-serif;letter-spacing:-.025em;text-wrap:pretty}.hero h1{max-width:12em;margin:0;font-size:clamp(2.65rem,6.3vw,5.5rem);line-height:1.04}.hero p:last-child{max-width:38rem;margin:24px 0 0;color:var(--muted);font-size:clamp(1rem,1.7vw,1.24rem)}.hero-aside{display:grid;gap:18px;padding:24px;border-left:5px solid var(--signal);background:var(--panel)}.hero-aside strong{font-size:1.08rem}.hero-aside p{margin:0;color:var(--muted);font-size:.92rem}.block{padding:clamp(58px,8vw,104px) 0;border-bottom:1px solid var(--line)}.block:last-child{border-bottom:0}.block-header{display:grid;grid-template-columns:minmax(0,.75fr) minmax(280px,1fr);gap:clamp(24px,6vw,78px);align-items:start;margin-bottom:38px}.block h2{margin:0;font-size:clamp(2rem,4.3vw,3.75rem);line-height:1.09}.block-header>p{margin:0;color:var(--muted);font-size:1rem}.grid-2,.grid-3{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.case,.task,.evidence,.checkpoint{padding:clamp(22px,4vw,38px);background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow)}.case{border-top:6px solid var(--ink)}.task{border-top:6px solid var(--signal)}.evidence{background:#e9eee6;border-color:#cdd8cb}.checkpoint{color:#f4f0e7;background:#152019;border:0}.case h3,.task h3,.evidence h3,.checkpoint h3{margin:0 0 14px;font-size:clamp(1.35rem,2.4vw,2rem);line-height:1.2}.case p,.evidence p,.checkpoint p{margin:0;color:inherit}.muted{color:var(--muted)}.label{display:block;margin:20px 0 7px;font-size:.83rem;font-weight:800}.field,textarea,input[type=text]{width:100%;min-height:52px;padding:13px 14px;color:var(--ink);background:#fff;border:1px solid #bfc4bb;border-radius:8px;outline:none}.field{resize:vertical}.field.tall,textarea.tall{min-height:128px}.field:focus,textarea:focus,input:focus,select:focus,button:focus-visible{border-color:#729000;box-shadow:0 0 0 3px rgba(183,223,0,.25)}.choices{display:grid;gap:10px;margin-top:16px}.choice{min-height:52px;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px;padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:8px}.choice input{width:20px;height:20px;accent-color:#769200}.action{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:18px;padding:0 18px;color:var(--signal-ink);background:var(--signal);border:0;border-radius:8px;font-weight:850}.action.secondary{color:var(--ink);background:transparent;border:1px solid #90978e}.result{margin-top:18px;padding:18px;background:#172019;color:#f4f0e7;border-radius:8px}.result[hidden]{display:none}.result strong{color:var(--signal)}.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;padding:1px;background:var(--line);border:1px solid var(--line)}.step{min-width:0;padding:22px 16px;background:var(--panel)}.step b{display:block;color:#668000;font:800 1.75rem/1 "Space Grotesk",sans-serif}.step strong{display:block;margin:16px 0 6px}.step p{margin:0;color:var(--muted);font-size:.88rem}.table-wrap{overflow-x:auto;border:1px solid var(--line);background:var(--panel)}table{width:100%;border-collapse:collapse;min-width:780px}th,td{padding:13px;vertical-align:top;text-align:left;border:1px solid var(--line)}th{color:#344039;background:#e8e6dc;font-size:.78rem}td textarea,td input{min-width:150px;background:#fff}.score-grid{display:grid;gap:10px}.score-row{display:grid;grid-template-columns:minmax(140px,1fr) repeat(3,52px);gap:8px;align-items:center;padding:12px;background:var(--panel);border:1px solid var(--line)}.score-row>span{font-weight:750}.score-row label{display:grid;place-items:center;min-height:44px;background:#eef0e8;border:1px solid var(--line);border-radius:7px}.score-row input{accent-color:#769200}.path-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.path-tabs button{min-height:48px;padding:0 18px;color:var(--muted);background:transparent;border:1px solid var(--line);border-radius:8px;font-weight:800}.path-tabs button[aria-selected=true]{color:var(--signal-ink);background:var(--signal);border-color:var(--signal)}.path-panel[hidden]{display:none}.timeline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.timeline article{padding:26px;background:var(--panel)}.timeline span{color:#6a7b00;font:800 .72rem/1 "Space Grotesk",sans-serif;letter-spacing:.12em}.timeline h3{margin:14px 0 9px}.timeline p{margin:0;color:var(--muted)}details{margin-top:18px;border:1px solid var(--line);background:var(--panel)}summary{min-height:48px;display:flex;align-items:center;padding:10px 15px;font-weight:800;cursor:pointer}details>div{padding:0 18px 18px;color:var(--muted)}.save-status{position:sticky;z-index:5;bottom:14px;width:max-content;max-width:calc(100% - 28px);margin:24px auto 0;padding:9px 14px;color:#e8eedf;background:rgba(21,32,25,.94);border-radius:99px;font-size:.76rem;opacity:0;transform:translateY(8px);transition:opacity 180ms ease-out,transform 180ms ease-out}.save-status.is-visible{opacity:1;transform:none}.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms cubic-bezier(.22,1,.36,1),transform 520ms cubic-bezier(.22,1,.36,1)}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:800px){.hero,.block-header{grid-template-columns:1fr}.hero-aside{border-left:0;border-top:5px solid var(--signal)}.grid-2,.grid-3,.timeline{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{display:grid;grid-template-columns:48px 1fr;column-gap:12px}.step b{grid-row:1/3}.score-row{grid-template-columns:minmax(110px,1fr) repeat(3,46px)}.lesson-content{padding-inline:20px}.block{padding-block:58px}.table-wrap{margin-inline:-20px;border-inline:0}.path-tabs{display:grid;grid-template-columns:repeat(3,1fr)}}
@media(max-width:420px){body{font-size:15px}.hero h1{font-size:2.55rem}.score-row{grid-template-columns:1fr repeat(3,44px)}.score-row>span{grid-column:1/-1}.path-tabs button{padding-inline:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.save-status{transition:none}}
@media print{body{background:#fff}.lesson-content{width:100%;padding:20px}.action,.save-status{display:none}.reveal{opacity:1;transform:none}.block{break-inside:avoid}.field,textarea,input[type=text]{border:1px solid #777}.case,.task,.evidence{box-shadow:none}}