:root{--paper:#f8f8f3;--ink:#293c38;--muted:#60736b;--sage:#426e6f;--line:#dbe3db;--cream:#eef2eb;--radius:24px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.85;font-synthesis:none}
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span{display:inline-block;margin-left:20px}.quick-answer{max-width:900px;margin-top:35px;background:#eaf0e7;border:1px solid #d9e3d3;border-radius:var(--radius);padding:25px 29px}.quick-answer>span{font-size:14px;letter-spacing:.08em;font-weight:650;color:#557963}.quick-answer p{font-size:19px;line-height:1.85;margin-top:8px;color:#375d4f}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:64px;align-items:start;padding-bottom:30px}.article-sidebar{grid-column:2;grid-row:1;position:sticky;top:28px;font-size:14px}.article-sidebar nav{border-left:2px solid #d8e2d5;padding-left:22px}.article-sidebar nav p{font-weight:650;color:#3c5f50;margin-bottom:12px}.article-sidebar nav a{display:block;text-decoration:none;line-height:1.7;margin-top:12px;color:var(--muted)}.article-sidebar nav a:hover{color:var(--sage);text-decoration:underline}.sidebar-service{margin-top:32px;border:1px solid var(--line);border-radius:18px;padding:20px}.sidebar-service strong{display:block;font-size:16px;line-height:1.65}.sidebar-service p{font-size:14px;color:var(--muted);margin:12px 0}.sidebar-service a{font-size:14px}.article-body{grid-column:1;grid-row:1;min-width:0;font-size:18px;line-height:1.95}.article-section{padding:36px 0;border-top:1px solid var(--line);scroll-margin-top:25px}.article-body h2{font-size:29px;line-height:1.5;letter-spacing:-.025em;margin-bottom:22px;text-wrap:pretty}.article-body p+p{margin-top:18px}.article-body ol,.article-body ul{padding-left:1.4em;margin:18px 0}.article-body li{padding-left:5px;margin-top:10px}.article-body li::marker{color:#688a73}.source-ref{font-size:14px;vertical-align:super;margin-left:4px;text-decoration:none;white-space:nowrap}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:18px;margin:26px 0;background:#fff}table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.85}caption{text-align:left;padding:16px 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var(--line);scroll-margin-top:25px}details{border-top:1px solid var(--line);padding:4px 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;padding:17px 0;font-size:17px;font-weight:600;color:#3b6255;line-height:1.7}details>p{font-size:16px;color:var(--muted);padding:0 0 20px}.guide-evidence{margin-top:24px}.evidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:10px 0 25px}.evidence-grid figure{min-width:0}.evidence-grid img{display:block;aspect-ratio:4/3;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:12px}.evidence-grid figcaption{font-size:14px;color:var(--muted);margin-top:10px}.references{padding:30px 0;border-top:1px solid var(--line);font-size:14px;color:var(--muted);scroll-margin-top:25px}.references h2{font-size:19px;margin-bottom:13px}.references a{overflow-wrap:anywhere}.references li{scroll-margin-top:25px}.related{padding-top:65px;padding-bottom:70px}.related 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@media(max-width:900px){.article-layout{display:block}.article-sidebar{position:static;margin-bottom:35px}.article-sidebar nav{border-left:0;border-bottom:1px solid var(--line);padding:0 0 24px;display:flex;gap:10px 18px;flex-wrap:wrap}.article-sidebar nav p{width:100%;margin-bottom:0}.article-sidebar nav a{font-size:14px;margin:0}.sidebar-service{display:none}}
@media(max-width:600px){.wrap{width:calc(100% - 40px)}.header-inner{min-height:84px;gap:8px}.brand{font-size:15px;gap:5px}.brand img{width:54px;height:54px}.brand-small{font-size:14px}.header-inner nav{gap:10px}.header-inner nav>a:first-child{display:none}.button.small{font-size:14px;padding:10px 13px}.breadcrumb{font-size:14px;padding-top:18px;gap:6px 9px}.guide-hero{padding:28px 0 35px}.eyebrow{font-size:14px;margin-bottom:13px}h1{font-size:33px;line-height:1.45;letter-spacing:-.035em}.byline{font-size:14px;line-height:1.9;margin-top:18px}.byline span{display:block;margin-left:0}.quick-answer{margin-top:23px;padding:21px}.quick-answer p{font-size:17px;line-height:1.95}.article-body{font-size:17px;line-height:1.95}.article-section{padding:29px 0}.article-body h2{font-size:25px;line-height:1.6;margin-bottom:18px}.table-scroll{margin:22px 0}table{font-size:14px}th,td{padding:14px;min-width:8rem}.fact-grid{gap:8px}.fact-grid>div{padding:16px 10px}.fact-grid strong{font-size:18px}.fact-grid span{font-size:14px}.evidence-grid{grid-template-columns:1fr}.related{padding-top:40px;padding-bottom:45px}.related h2{font-size:26px}.related-grid{grid-template-columns:1fr;gap:14px}.related-card{padding:24px}.related-card h3{font-size:21px}.guide-contact{padding:48px 0}.guide-contact h2{font-size:32px}.guide-contact p:not(.eyebrow){font-size:16px}.guide-footer .wrap{display:block}.guide-footer p+p{margin-top:20px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media(max-width:600px){.fact-grid{grid-template-columns:1fr}.fact-grid>div{display:flex;align-items:center;justify-content:space-between;gap:18px}.fact-grid strong{font-size:20px}.fact-grid span{font-size:14px;margin-top:0;text-align:right}}
@media print{.guide-header,.article-sidebar,.related,.guide-contact,.skip-link{display:none}.wrap{width:100%}.guide-hero{padding:15px 0}.article-layout{display:block}.quick-answer{border:1px solid #aaa}.article-body{font-size:12pt}h1{font-size:26pt}.article-body h2{font-size:18pt}.article-section{break-inside:avoid}a{color:inherit}.guide-footer{border-top:1px solid #aaa}}

/* Keep secondary information readable without enlarging article headings. */
.brand-small,.byline,.breadcrumb,.quick-answer>span,.evidence-grid figcaption{line-height:1.8}
@media(max-width:600px){.header-inner{flex-wrap:wrap;padding-block:12px;row-gap:10px}.brand{min-width:0}.header-inner nav{flex-shrink:0}}