:root{color-scheme:light;--ink:#0e223b;--sub:#43546a;--line:#dce6ef;--bg:#f7fafc;--blue:#1266a3;--teal:#007f86}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.82 system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif}a{color:#09669b}.wrap{width:min(1120px,calc(100% - 36px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;z-index:1000}.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{display:flex;justify-content:space-between;align-items:center;min-height:70px;gap:16px}.brand{font-size:1.1rem;font-weight:900;text-decoration:none;color:var(--ink)}.nav nav{display:flex;gap:22px;flex-wrap:wrap}.nav a{text-decoration:none}.crumb{margin-top:24px;font-size:.87rem;color:var(--sub)}.hero{padding:68px 0 66px;border-bottom:1px solid var(--line)}.eyebrow,.num{letter-spacing:.15em;text-transform:uppercase;color:var(--teal);font-weight:800;font-size:.79rem}.hero h1{font-size:clamp(2.1rem,5.5vw,4.5rem);line-height:1.19;letter-spacing:-.035em;max-width:900px;margin:15px 0 22px}.lead{font-size:1.18rem;color:var(--sub);max-width:840px}.note{font-size:.89rem;color:var(--sub)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.primary,.pill{display:inline-block;border-radius:99px;padding:9px 21px;text-decoration:none;font-weight:750}.primary{background:#0b4674;color:#fff}.pill{border:1px solid #a9bfce;background:#fff;color:#124e78}.metrics{display:flex;gap:32px;flex-wrap:wrap;margin-top:36px;color:var(--sub)}.metrics b{font-size:1.5rem;color:var(--ink)}.section{padding:46px 0;border-bottom:1px solid var(--line)}.section h2{font-size:clamp(1.35rem,2.9vw,2rem);line-height:1.4;margin:0 0 14px}.section>p{color:var(--sub)}.layer-map{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;list-style:none;margin:26px 0 0;padding:0}.layer-map li{display:flex;gap:17px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;background:#fff;padding:18px}.layer-map span{font-size:1.2rem;font-weight:900;color:var(--blue)}.layer-map p{margin:0;color:var(--sub);font-size:.94rem}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px}.chapter-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:#fff;padding:26px;color:var(--ink);text-decoration:none;transition:transform .2s,box-shadow .2s}.chapter-card:hover{transform:translateY(-3px);box-shadow:0 15px 35px #12355814}.chapter-card h3{margin:10px 0 0;font-size:1.4rem}.chapter-card p{margin:7px 0 16px;color:var(--sub);flex:1}.more{color:var(--blue);font-weight:800}.story{border-left:4px solid var(--teal);background:#fff;padding:12px 24px;border-radius:0 12px 12px 0}.checklist{padding-left:1.5rem}.checklist li{padding:6px 0}.section details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:12px 0}.section details summary{cursor:pointer;font-weight:700}.section details p{margin-bottom:0;color:var(--sub)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:40px;align-items:start}.article{min-width:0}.layout aside{position:sticky;top:90px;padding-top:44px}.chapter-nav,.aside-card{border:1px solid var(--line);background:#fff;border-radius:13px;padding:18px;margin-bottom:18px}.chapter-nav h2,.aside-card h2{font-size:1rem;margin:0 0 10px}.chapter-nav ol{list-style:none;margin:0;padding:0}.chapter-nav li{margin:4px 0}.chapter-nav a{display:flex;gap:9px;padding:5px 8px;text-decoration:none;border-radius:6px;color:var(--ink);font-size:.89rem}.chapter-nav a[aria-current]{background:#e4f1f5;color:#005568;font-weight:800}.chapter-nav a span{color:var(--teal)}.aside-card p{font-size:.88rem;color:var(--sub)}.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;text-align:left;min-width:540px}th,td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;font-size:.94rem}thead{background:#e9f2f8}th:first-child{width:25%}tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}.comparison{display:grid;gap:12px}.mini{border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px 19px}.mini h3{margin:0;font-size:1rem}.mini p{margin:3px 0;color:var(--sub)}.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.related-grid a{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:11px;padding:16px;background:#fff;text-decoration:none;font-weight:700}.related-grid small{color:var(--sub);font-weight:400}.foot{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;padding:35px 0 50px;color:var(--sub);font-size:.9rem}@media(max-width:780px){.layout{display:flex;flex-direction:column}.layout aside{position:static;width:100%;padding:0}.layer-map,.cards,.related-grid{grid-template-columns:1fr}.hero{padding:42px 0}.nav nav{gap:12px;font-size:.83rem}.metrics{gap:12px}.section{padding:35px 0}}