:root{--home-navy:#102b40;--home-ink:#18394f;--home-muted:#567086;--home-paper:#f5f7fa;--home-line:#d6e0e7;--home-bronze:#a77742;--home-blue:#2f607f}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:125px}body.hub-reading-home{margin:0;color:var(--home-ink);background:var(--home-paper);font:400 16px/1.7 Inter,"Noto Sans TC",sans-serif}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.25;font-weight:600}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}a,button{touch-action:manipulation}svg{max-width:100%}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #398caf;outline-offset:4px}button{cursor:pointer}html[data-language=en] [data-lang=zh],html[data-language=zh] [data-lang=en]{display:none!important}.skip-link{position:fixed;top:-90px;left:20px;z-index:200;padding:12px 20px;background:#fff;color:var(--home-navy)}.skip-link:focus{top:12px}.knowledge-header{position:sticky;top:0;z-index:70;display:flex;align-items:center;justify-content:space-between;gap:30px;max-width:1780px;margin:0 auto;background:var(--home-navy);color:#f0f5f8;padding:15px clamp(22px,4vw,64px);border-bottom:1px solid #365368}.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none;flex-shrink:0}.knowledge-mark{font-size:28px;line-height:1;letter-spacing:-.07em;font-weight:700}.knowledge-wordmark{font-size:15px;letter-spacing:.01em;border-left:1px solid #5f798b;padding-left:14px}.knowledge-header nav{display:flex;gap:27px;font-size:13px}.knowledge-header nav a{text-decoration:none;color:#c1d3df}.knowledge-header nav a:hover{color:#fff}.knowledge-controls{display:flex;gap:15px;align-items:center}.search-trigger{display:flex;align-items:center;gap:10px;padding:6px 10px;border:0;background:transparent;color:#d1dfe7;font-size:13px}.search-trigger svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7}.search-trigger kbd{font:10px Inter,sans-serif;background:#29465d;padding:3px 5px;border:1px solid #4b6479;border-radius:3px;color:#c6d4de}.language-toggle{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;background:transparent;color:#f0f5f8;border:1px solid #5e788b;border-radius:4px;font-size:12px}.language-toggle b{font-weight:500}.language-toggle i{font-style:normal;color:#6e879b}.knowledge-hero{display:grid;grid-template-columns:1.07fr 1fr;align-items:center;gap:55px;max-width:1420px;margin:auto;padding:65px 48px 60px}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.1em;color:#7c603e;margin-bottom:20px}.knowledge-hero h1{font-size:clamp(38px,4.15vw,60px);line-height:1.08;letter-spacing:-.045em!important;max-width:650px}.knowledge-intro{margin-top:24px;font-size:17px;line-height:1.8;color:var(--home-muted);max-width:610px}.knowledge-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:29px}.knowledge-actions a{display:inline-flex;align-items:center;gap:13px;font-size:13px;font-weight:500;text-decoration:none;min-height:46px}.knowledge-actions svg,.knowledge-focus svg,.knowledge-row>svg,.knowledge-hero-art figcaption svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;flex-shrink:0}.knowledge-primary{background:var(--home-blue);color:#fff;padding:11px 18px;border-radius:4px}.knowledge-primary:hover{background:#224c69}.knowledge-facts{display:flex;gap:28px;margin-top:38px;padding-top:26px;border-top:1px solid var(--home-line)}.knowledge-facts div{display:flex;flex-direction:column;gap:4px;padding-right:25px;border-right:1px solid var(--home-line)}.knowledge-facts div:last-child{border:0;padding:0}.knowledge-facts b{font-size:25px;font-weight:500;line-height:1.2;font-variant-numeric:tabular-nums}.knowledge-facts span{font-size:11px;color:var(--home-muted)}.knowledge-hero-art{background:#fff;border:1px solid #cad9e3;border-radius:8px;box-shadow:0 18px 50px #17374d0b;overflow:hidden}.figure-overline{display:flex;justify-content:space-between;gap:12px;padding:17px 20px;font-size:9px;font-weight:600;letter-spacing:.08em;color:#657d8e;border-bottom:1px solid #e0e7ec}.knowledge-hero-art .bc-illustration{display:block;width:100%;background:linear-gradient(135deg,#fff,#f5f8fa)}.knowledge-hero-art figcaption{display:grid;gap:9px;border-top:1px solid #e0e7ec;padding:20px 25px 23px}.knowledge-hero-art figcaption strong{font-size:18px;font-weight:600}.knowledge-hero-art figcaption>span{font-size:12px;line-height:1.65;color:var(--home-muted)}.knowledge-hero-art figcaption a{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:500;color:var(--home-blue);text-decoration:none;margin-top:5px}
.knowledge-focus{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--home-line);background:#fff;padding:0 max(48px,calc((100vw - 1324px)/2))}.knowledge-focus>a{position:relative;padding:27px 25px 27px 0;text-decoration:none}.knowledge-focus>a+a{border-left:1px solid var(--home-line);padding-left:29px}.focus-kicker{font-size:9px;color:#886844;font-weight:600;letter-spacing:.08em}.knowledge-focus h2{font-size:18px;line-height:1.4;margin:8px 0}.knowledge-focus p{font-size:13px;color:var(--home-muted);max-width:330px;line-height:1.65;padding-right:15px}.knowledge-focus svg{position:absolute;right:18px;bottom:26px;color:#456b84;width:17px}.knowledge-focus a:hover h2{color:var(--home-blue)}
.knowledge-map{max-width:1420px;margin:0 auto;padding:0 48px 60px}.hub-rail-nav{position:sticky;top:72px;z-index:35;display:flex;align-items:center;gap:34px;border-bottom:1px solid #bdceda;background:var(--home-paper);padding:0;margin-bottom:0}.hub-rail-btn{display:flex;align-items:center;gap:9px;padding:19px 0 17px;color:var(--home-muted);font-size:13px;text-decoration:none;white-space:nowrap}.hub-rail-btn>span:first-child{font-size:10px;color:#8b6e4f;font-variant-numeric:tabular-nums}.hub-rail-btn.active{color:#204f6f;font-weight:600}.hub-rail-indicator{position:absolute;height:2px;left:0;top:0;background:#346581;transition:transform .2s,width .2s;pointer-events:none}.knowledge-section{padding:44px 0 7px;scroll-margin-top:145px}.knowledge-section>header{display:flex;gap:19px;margin-bottom:25px}.section-number{font-size:12px;font-weight:500;color:#967249;padding-top:6px}.knowledge-section h2{font-size:28px;letter-spacing:-.025em}.knowledge-section>header p{font-size:14px;color:var(--home-muted);margin-top:10px;max-width:790px}.knowledge-list{border-top:1px solid var(--home-line)}.knowledge-row{display:grid;grid-template-columns:42px minmax(0,1fr) 180px 25px;gap:18px;align-items:center;padding:23px 8px;border-bottom:1px solid var(--home-line);text-decoration:none;transition:background .15s}.knowledge-row:hover{background:#ebf1f5}.knowledge-id{font-size:11px;font-weight:600;color:#7690a2;align-self:start;padding-top:4px}.knowledge-row h3{font-size:20px;font-weight:500}.knowledge-row p{font-size:14px;color:var(--home-muted);line-height:1.7;margin-top:7px;max-width:720px}.knowledge-meta{font-size:10px;color:#688091;text-align:right}.knowledge-row>svg{width:17px;color:#608298}.knowledge-method{display:grid;grid-template-columns:.85fr 1fr;gap:80px;padding:48px max(48px,calc((100vw - 1324px)/2));background:#e7eef3;border-top:1px solid var(--home-line)}.knowledge-method h2{font-size:31px;line-height:1.3;max-width:430px;letter-spacing:-.03em}.knowledge-method ol{list-style:none;margin:0;padding:0;display:grid;gap:24px}.knowledge-method li{display:flex;gap:20px}.knowledge-method li>b{font-size:12px;color:#8a673f;font-weight:500;padding-top:4px}.knowledge-method h3{font-size:17px;font-weight:600}.knowledge-method li p{font-size:14px;color:var(--home-muted);line-height:1.7;margin-top:7px}.knowledge-footer{display:grid;grid-template-columns:auto 1fr auto;gap:25px;align-items:center;padding:29px clamp(22px,4vw,64px);background:var(--home-navy);color:#ccdae4}.knowledge-footer .brand{gap:12px;font-size:13px}.knowledge-footer .knowledge-mark{font-size:24px}.knowledge-footer p{font-size:11px;line-height:1.7;color:#a9bdcd}.knowledge-footer>div{display:flex;gap:20px;font-size:11px}.knowledge-footer a{text-decoration:none}
.search-overlay{position:fixed;inset:0;z-index:100;background:#071b2dcc;backdrop-filter:blur(5px);display:none;align-items:flex-start;justify-content:center;padding:12vh 20px 25px}.search-overlay.is-open{display:flex}.search-modal{width:min(740px,100%);max-height:75vh;display:flex;flex-direction:column;border:1px solid #52738b;border-radius:8px;background:#fff;box-shadow:0 25px 80px #0004;overflow:hidden}.search-input-row{display:flex;border-bottom:1px solid var(--home-line);padding:18px 20px;gap:12px}.search-input-row input{width:100%;min-width:0;border:0;background:transparent;color:var(--home-ink);font-size:17px;outline:none}.search-input-row button{min-width:34px;border:0;background:#edf2f6;color:#48647b;font-size:23px;border-radius:4px}.search-status{padding:12px 20px;font-size:12px;color:var(--home-muted);background:#f3f6f9;border-bottom:1px solid var(--home-line)}.search-results{padding:8px;overflow:auto}.search-result-item{display:block;text-decoration:none;padding:12px 15px;border-radius:4px}.search-result-item:hover,.search-result-item:focus{background:#e7f0f6}.sr-title{font-size:15px;font-weight:500;line-height:1.5}.sr-desc{font-size:12px;color:var(--home-muted);margin-top:4px;line-height:1.6}
@media(max-width:1180px){.knowledge-header{gap:18px;padding-inline:28px}.knowledge-header nav{gap:16px;font-size:12px}.knowledge-wordmark{font-size:13px}.search-trigger kbd{display:none}.knowledge-hero{padding:48px 30px;gap:35px}.knowledge-hero h1{font-size:44px}.knowledge-intro{font-size:16px}.knowledge-facts{gap:19px}.knowledge-facts div{padding-right:18px}.knowledge-map{padding-inline:30px}.knowledge-focus{padding-inline:30px}.knowledge-method{padding:40px 30px;gap:45px}.knowledge-footer{grid-template-columns:auto 1fr}.knowledge-footer>div{grid-column:1/-1}.knowledge-row{grid-template-columns:35px minmax(0,1fr) 145px 20px}.knowledge-meta{font-size:9px}}
@media(max-width:850px){.knowledge-header nav{display:none}.knowledge-hero{grid-template-columns:1fr;gap:35px;padding:38px 26px}.knowledge-hero h1{max-width:680px;font-size:48px}.knowledge-hero-copy{max-width:720px}.knowledge-hero-art{max-width:650px}.knowledge-hero-art .bc-illustration{max-height:350px}.knowledge-facts{margin-top:25px;padding-top:22px;gap:35px}.knowledge-facts div{padding-right:35px}.knowledge-focus{grid-template-columns:1fr;padding:0 26px}.knowledge-focus>a{padding:23px 30px 23px 0!important}.knowledge-focus>a+a{border-left:0;border-top:1px solid var(--home-line)}.knowledge-focus p{max-width:650px}.knowledge-focus svg{right:4px}.knowledge-map{padding-inline:26px}.hub-rail-nav{gap:26px;overflow:auto;top:72px;white-space:nowrap}.hub-rail-btn{font-size:12px}.knowledge-row{grid-template-columns:30px minmax(0,1fr) 20px;gap:13px}.knowledge-meta{display:none}.knowledge-row h3{font-size:19px}.knowledge-method{grid-template-columns:1fr;gap:30px;padding:38px 26px}.knowledge-method h2{max-width:650px;font-size:30px}.knowledge-footer{padding:28px 26px;gap:20px}.knowledge-footer p{font-size:11px}.knowledge-controls{gap:10px}}
@media(max-width:500px){.knowledge-header{padding:12px 18px;gap:12px;min-height:67px}.knowledge-mark{font-size:25px}.knowledge-wordmark{font-size:11px;padding-left:9px}.brand{gap:9px}.search-trigger{padding:6px}.search-trigger>span{display:none}.knowledge-controls{gap:7px}.language-toggle{font-size:11px;gap:5px!important;min-width:72px!important;padding:6px 8px!important}.knowledge-hero{padding:32px 20px;gap:28px}.knowledge-hero h1{font-size:39px;line-height:1.14;max-width:380px}.eyebrow{font-size:9px;margin-bottom:17px}.knowledge-intro{font-size:15px;line-height:1.8;margin-top:20px}.knowledge-actions{gap:11px;margin-top:23px}.knowledge-actions a{font-size:12px}.knowledge-actions>a:last-child{min-height:36px}.knowledge-primary{padding:11px 14px}.knowledge-facts{gap:18px;margin-top:24px;padding-top:20px}.knowledge-facts div{padding-right:17px}.knowledge-facts b{font-size:24px}.knowledge-facts span{font-size:9px}.figure-overline{padding:13px 15px;font-size:8px;letter-spacing:.04em}.knowledge-hero-art figcaption{padding:17px 19px}.knowledge-hero-art figcaption strong{font-size:16px}.knowledge-hero-art figcaption>span{font-size:12px}.knowledge-focus{padding-inline:20px}.knowledge-focus h2{font-size:17px}.knowledge-focus p{font-size:12px}.knowledge-map{padding:0 20px 38px}.hub-rail-nav{top:67px;gap:24px}.hub-rail-btn{font-size:11px;padding-block:15px;gap:7px}.hub-rail-btn>span:first-child{font-size:9px}.knowledge-section{padding-top:32px;scroll-margin-top:128px}.knowledge-section h2{font-size:25px}.knowledge-section>header{gap:13px;margin-bottom:19px}.knowledge-section>header p{font-size:13px}.knowledge-row{padding-block:19px;gap:9px;grid-template-columns:26px minmax(0,1fr) 17px}.knowledge-row h3{font-size:17px;line-height:1.4}.knowledge-row p{font-size:13px;line-height:1.7}.knowledge-id{font-size:9px;padding-top:5px}.knowledge-method{padding:32px 20px}.knowledge-method h2{font-size:27px}.knowledge-method h3{font-size:16px}.knowledge-method li p{font-size:13px}.knowledge-footer{display:flex;flex-direction:column;align-items:flex-start;padding:27px 20px;gap:15px}.knowledge-footer>div{flex-wrap:wrap;gap:12px 18px}.search-overlay{padding:9vh 12px 20px}.search-input-row{padding:16px 14px}.search-input-row input{font-size:15px}.search-status{font-size:11px;padding:11px 14px}.sr-title{font-size:14px}.sr-desc{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hub-rail-indicator,.knowledge-row{transition:none}}
.knowledge-intro-header{max-width:1420px;margin:auto;padding:42px 48px 34px}.knowledge-intro-header .eyebrow{margin-bottom:12px}.knowledge-intro-header h1{font-size:50px;line-height:1.15;letter-spacing:-.035em}.knowledge-intro-header .knowledge-intro{max-width:880px;margin-top:15px;font-size:17px;line-height:1.75}.hub-rail-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--home-line)}.hub-rail-btn{white-space:normal;line-height:1.4;font-size:15px;padding:18px 14px;gap:10px}.hub-rail-btn+ .hub-rail-btn{border-left:1px solid var(--home-line)}.hub-rail-btn>span:first-child{font-size:11px}.knowledge-section>header p,.knowledge-row p{font-size:15px}.knowledge-row h3{font-size:20px}.knowledge-row:target{background:#e6eff4;scroll-margin-top:150px}.knowledge-header nav{gap:20px}.knowledge-method{padding-block:34px}.knowledge-method h2{font-size:27px}.knowledge-method li p{font-size:15px}
@media(max-width:1180px){.knowledge-intro-header{padding:34px 30px 28px}.knowledge-intro-header h1{font-size:45px}.hub-rail-btn{font-size:14px;padding-inline:10px}.knowledge-header nav{gap:14px}}
@media(max-width:1050px){.knowledge-header nav{display:none}}
@media(max-width:850px){.knowledge-intro-header{padding:30px 26px 26px}.knowledge-intro-header h1{font-size:42px}.hub-rail-nav{overflow:visible}.hub-rail-btn{font-size:13px;gap:7px}.knowledge-section{scroll-margin-top:140px}}
@media(max-width:600px){.knowledge-intro-header{padding:27px 20px 24px}.knowledge-intro-header h1{font-size:36px;letter-spacing:-.025em}.knowledge-intro-header .knowledge-intro{font-size:15px;margin-top:13px}.hub-rail-nav{grid-template-columns:repeat(2,minmax(0,1fr));top:67px}.hub-rail-btn{font-size:14px;padding:13px 10px;min-height:52px}.hub-rail-btn:nth-child(3){border-left:0}.hub-rail-btn:nth-child(n+3){border-top:1px solid var(--home-line)}.knowledge-section{scroll-margin-top:195px}.knowledge-row:target{scroll-margin-top:195px}.knowledge-row h3{font-size:18px}.knowledge-row p,.knowledge-section>header p{font-size:15px}.knowledge-method h2{font-size:25px}.knowledge-method li p{font-size:15px}}

/* 以固定頁首與分類列的實際高度共用定位與追蹤基準。 */
html{scroll-padding-top:var(--home-anchor-top,145px)}.knowledge-section{scroll-margin-top:0}.hub-rail-nav{align-items:stretch}

html:has(body.hub-reading-home){scroll-padding-top:var(--home-anchor-top,145px)}

.hub-reading-home .knowledge-row:target{scroll-margin-top:0}

:root{--hub-keepout:clamp(24px,4vw,64px)}
.knowledge-header,.knowledge-footer{padding-inline:var(--hub-keepout)}
.knowledge-hero,.knowledge-intro-header,.knowledge-map{
  padding-inline:max(var(--hub-keepout),20px);
}
.knowledge-focus,.knowledge-method{
  padding-inline:max(var(--hub-keepout),calc((100vw - 1324px)/2));
}
.search-overlay{padding-inline:var(--hub-keepout)}
@media(max-width:1180px){
  .knowledge-header,.knowledge-hero,.knowledge-intro-header,.knowledge-map,.knowledge-footer{
    padding-inline:var(--hub-keepout);
  }
}