:root{--white:#fff;--ink:#111;--blue:#075985;--blue-dark:#064263;--blue-light:#eaf4fc;--line:#c9d8e5;--muted:#5c6670;--max-width:1280px;--gutter:clamp(32px, 5vw, 80px);--header-height:60px;color:var(--ink);background:var(--white);font-synthesis:none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + 24px)}body{min-width:320px;color:var(--ink);background:var(--white);margin:0;font-size:16px;line-height:1.8}button,input,select,textarea{font:inherit}a{color:var(--blue);text-underline-offset:.2em;text-decoration-line:underline;text-decoration-thickness:1px}a:hover{color:var(--blue-dark);text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--blue);outline-offset:4px;border-radius:2px}img{max-width:100%;height:auto;display:block}.visually-hidden{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}h1,h2,h3,h4,p,ul,ol,dl{margin-top:0}h1,h2,h3,h4{letter-spacing:-.02em;text-wrap:balance;scroll-margin-top:calc(var(--header-height) + 32px);line-height:1.35}h1{font-size:30px}h2{font-size:24px}h3{font-size:20px}h4{font-size:18px}.skip-link{z-index:100;color:var(--white);background:var(--blue);padding:8px 14px;position:fixed;top:8px;left:12px;transform:translateY(-140%)}.skip-link:focus{transform:translateY(0)}.site-header{z-index:50;height:var(--header-height);border-bottom:1px solid var(--line);background:#fffffffa;position:fixed;inset:0 0 auto}.header-inner,.footer-inner,.page-shell,.article-shell{width:min(calc(100% - (var(--gutter) * 2)), var(--max-width));margin-inline:auto}.header-inner{width:calc(100% - (var(--gutter) * 2));align-items:center;gap:32px;height:100%;display:flex}.site-name{color:var(--ink);letter-spacing:.06em;flex:none;align-items:center;gap:10px;font-size:18px;font-weight:800;text-decoration:none;display:inline-flex}.site-logo{object-fit:contain;width:36px;height:36px}.site-header nav{flex:1;align-items:center;min-width:0;display:flex}.menu-toggle{min-height:40px;color:var(--ink);background:var(--white);border:1px solid var(--blue);margin-left:auto;padding:0 14px;display:none}.site-header ul{align-items:center;gap:0;margin:0;padding:0;list-style:none;display:flex}.site-header nav li{width:112px;position:relative}.site-header nav li:before,.site-header nav li:last-child:after{z-index:1;background:var(--line);content:"";pointer-events:none;width:1px;position:absolute;top:0;bottom:0}.site-header nav li:before{left:0}.site-header nav li:last-child:after{right:0}.site-header nav a,.search-trigger{width:100%;min-height:40px;color:var(--ink);background:var(--white);cursor:pointer;border:0;border-bottom:3px solid #0000;justify-content:center;align-items:center;padding:0 12px;text-decoration:none;display:inline-flex}.site-header nav a:hover,.site-header nav a[aria-current=page],.search-trigger:hover{color:var(--blue);border-bottom-color:var(--blue)}.site-header nav a[aria-current=page]{font-weight:700}.search-trigger{width:112px;box-shadow:inset 1px 0 var(--line), inset -1px 0 var(--line);margin-left:auto}.search-dialog{width:min(720px,100% - 40px);max-height:min(760px,100vh - 40px);color:var(--ink);background:var(--white);border:1px solid var(--line);padding:0}.search-dialog::backdrop{background:#1111116b}.search-dialog-panel{padding:28px}.search-dialog-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:24px;margin-bottom:24px;padding-bottom:18px;display:flex}.search-dialog-header h2{margin:0}.search-close{min-height:40px;color:var(--blue);background:var(--white);border:1px solid var(--blue);cursor:pointer;padding:6px 14px}.search-dialog-field{display:block}.search-dialog-field input{width:100%;min-height:48px;color:var(--ink);background:var(--white);border:1px solid var(--blue);padding:8px 12px}.search-dialog-results{max-height:min(460px,55vh);overflow-y:auto}main{min-height:calc(100vh - 150px);padding-top:calc(var(--header-height) + 50px)}.editor-preview-banner{z-index:45;top:var(--header-height);min-height:36px;padding:3px var(--gutter);color:var(--ink);background:var(--blue-light);border-bottom:1px solid var(--line);text-align:center;font-size:14px;font-weight:800;position:fixed;left:0;right:0}.editor-preview-mode main{padding-top:calc(var(--header-height) + 86px)}.page-shell{padding-bottom:72px}.home-shell{width:calc(100% - (var(--gutter) * 2));max-width:none}.page-hero{max-width:900px;margin-bottom:50px}.page-hero.compact{max-width:760px}.eyebrow{color:var(--blue);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-size:14px;font-weight:700;display:inline-block}.page-hero h1{margin-bottom:18px;font-size:50px}.page-subtitle{margin-bottom:18px;font-size:26px;line-height:1.5}.page-intro,.article-summary{max-width:760px;margin-bottom:0;font-size:18px}.home-hero{border-top:0;border-bottom:1px solid var(--line);justify-content:center;align-items:center;max-width:none;min-height:380px;margin-bottom:50px;display:flex;position:relative;overflow:hidden}.home-hero-copy{z-index:1;text-align:center;width:min(820px,100% - 120px);padding:56px clamp(40px,6vw,96px);position:relative}.home-hero h1{letter-spacing:.04em;margin-bottom:18px;font-size:50px}.home-logo-heading{line-height:1}.home-logo{object-fit:contain;width:180px;height:180px;margin-inline:auto;display:block}.home-hero .page-subtitle{margin-bottom:18px}.home-intro{max-width:620px;margin:0 auto;font-size:16px;line-height:1.8}.section-block{border-top:1px solid var(--line);margin-top:40px;padding-top:40px}.section-heading{justify-content:space-between;align-items:baseline;gap:24px;margin-bottom:24px;display:flex}.section-heading h2{margin:0}.home-recent{border-top:0;margin-top:0;padding-top:0}.home-section-heading{max-width:1040px;margin-inline:auto}.topic-grid,.project-grid,.about-grid,.tool-grid{background:var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;padding:1px;display:grid}.topic-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.about-grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}.topic-card,.project-card,.about-card,.tool-card{min-width:0;color:var(--ink);background:var(--white);padding:28px;text-decoration:none}.topic-card:hover,.project-card:hover,.tool-card:hover{color:var(--ink);background:var(--blue-light)}.topic-number{color:var(--blue);margin-bottom:22px;font-size:14px;font-weight:800;display:block}.topic-card h3,.project-card h3{margin-bottom:8px}.topic-card p,.project-card p,.about-card p,.tool-card p{margin-bottom:0}.tool-card{flex-direction:column;min-height:330px;display:flex}.tool-card-meta{color:var(--blue);justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px;font-size:14px;font-weight:700;display:flex}.tool-card h2{margin-bottom:12px}.tool-card>p{margin-bottom:24px}.tool-facts,.tool-detail-facts{border-top:1px solid var(--line);margin:auto 0 0;display:grid}.tool-facts div,.tool-detail-facts div{border-bottom:1px solid var(--line);grid-template-columns:90px minmax(0,1fr);gap:16px;padding:9px 0;display:grid}.tool-facts dt,.tool-detail-facts dt{font-weight:700}.tool-facts dd,.tool-detail-facts dd{margin:0}.tool-detail-facts{max-width:760px;margin:-18px 0 40px}.topic-cover{aspect-ratio:16/9;object-fit:cover;width:100%;margin-bottom:18px}.content-list{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.topic-content{margin-top:32px}.content-list li{border-bottom:1px solid var(--line)}.content-item{color:var(--ink);grid-template-columns:160px minmax(0,1fr) minmax(240px,280px);align-items:center;gap:24px;padding:20px 8px;text-decoration:none;display:grid}.content-item:hover{color:var(--ink);background:var(--blue-light)}.content-thumbnail{display:block;overflow:hidden}.content-thumbnail img{width:100%;height:auto}.content-copy,.content-meta{flex-direction:column;min-width:0;display:flex}.content-copy strong{font-size:18px}.content-copy span,.content-meta{font-size:14px}.content-meta{text-align:right;justify-content:space-between;align-self:stretch;align-items:flex-end}.content-created{color:var(--ink);font-size:12px;line-height:1.4}.content-tag{color:#6b7280;white-space:nowrap;font-weight:400}.content-list-cards{border-top:0;gap:24px;max-width:1040px;margin-inline:auto;display:grid}.content-list-cards li{border:1px solid var(--line);border-radius:14px;overflow:hidden}.content-list-cards .content-item{grid-template-rows:1fr auto;grid-template-columns:minmax(280px,34%) minmax(0,1fr);align-items:stretch;gap:0;min-height:230px;padding:0}.content-list-cards .content-thumbnail{border-right:1px solid var(--line);grid-row:1/3;min-height:230px}.content-list-cards .content-thumbnail img{object-fit:cover;width:100%;height:100%}.content-list-cards .content-copy{justify-content:center;gap:10px;padding:26px 28px 20px}.content-list-cards .content-copy strong{font-size:22px;line-height:1.45}.content-list-cards .content-copy span{font-size:16px;line-height:1.7}.content-list-cards .content-meta{color:var(--ink);border-top:1px solid var(--line);text-align:left;flex-direction:row;grid-column:2;align-self:auto;align-items:center;padding:14px 28px}.content-list-cards .content-created{color:var(--ink);font-size:13px}.content-list-cards .content-tag{color:#6b7280;font-weight:400}.empty-state,.error-state{border:1px solid var(--line);background:var(--blue-light);padding:32px}.empty-state p,.error-state p{margin-bottom:8px}.article-shell{padding-bottom:72px}.article-header{max-width:900px;margin:0 auto 32px}.article-header h1{margin-bottom:18px;font-size:clamp(36px,4vw,50px)}.article-meta{border-top:1px solid var(--line);flex-wrap:wrap;gap:12px 28px;margin-top:24px;margin-bottom:0;padding-top:18px;display:flex}.article-meta div{gap:8px;display:flex}.article-meta dt{font-weight:700}.article-meta dd{margin:0}.article-meta .article-created{color:var(--muted);margin-inline-start:auto;font-size:11px}.article-cover{margin:0 0 50px}.article-cover img{width:100%;height:auto}.article-grid{grid-template-columns:minmax(255px,1fr) 40px minmax(0,900px) 40px minmax(255px,1fr);align-items:start;display:grid}.article-toc{top:calc(var(--header-height) + 28px);grid-column:1;width:255px;font-size:15px;line-height:1.6;position:sticky}.article-main{grid-column:3}.article-toc .toc-panel{border:1px solid var(--line);border-left:3px solid var(--blue);padding:14px;box-shadow:0 6px 18px #0759850f}.source-notes summary{color:var(--ink);cursor:pointer;font-weight:800}.article-toc .toc-title-link{color:var(--ink);border-bottom:1px solid var(--line);padding:4px 4px 10px;font-weight:800;text-decoration:none}.article-toc .toc-title-link:hover{color:var(--blue-dark)}.article-toc ol{margin:10px 0 0;padding-left:20px}.article-toc li{margin-bottom:1px}.article-toc a{color:var(--blue);padding:4px;text-decoration:none;display:block;position:relative}.article-toc a:hover{color:var(--blue-dark);background:0 0;text-decoration:none}.article-toc a[aria-current=location]{background:0 0;text-decoration:none}.article-toc ol a[aria-current=location],.article-toc ol a[aria-current=location]:hover{color:var(--blue)}.article-toc .toc-title-link[aria-current=location],.article-toc .toc-title-link[aria-current=location]:hover{color:var(--ink)}.article-toc a[aria-current=location]:before{background:var(--blue-dark);content:"";width:4px;height:1.5em;position:absolute;top:50%;left:0;transform:translateY(-50%)}.article-toc .nested{margin-left:24px}.content-image{margin:32px 0}.content-image img{width:100%;height:auto;display:block}.content-image-mark{max-width:160px}.brand-note{margin:32px 0}.content-image figcaption{margin-top:8px;font-size:14px}.prose{min-width:0;max-width:900px}.custom-page-content{padding-bottom:24px}.related-page-content{border-top:1px solid var(--line);margin-top:40px;padding-top:40px}.article-tags{color:#6b7280;border-top:1px solid var(--line);white-space:nowrap;flex-wrap:nowrap;gap:8px;margin-top:50px;padding-top:20px;font-size:14px;display:flex;overflow-x:auto}.prose h2{border-top:1px solid var(--line);margin-top:40px;padding-top:40px}.prose h3{margin-top:32px}.prose blockquote{border-left:4px solid var(--blue);margin:28px 0;padding:8px 0 8px 24px}.prose pre{max-width:100%;color:var(--white);background:var(--ink);padding:20px;overflow-x:auto}.prose code:not(pre code){background:var(--blue-light);padding:.1em .3em}.prose table,.summary-table{border-collapse:collapse;width:100%;font-size:15px}.prose th,.prose td,.summary-table th,.summary-table td{text-align:left;vertical-align:middle;border:1px solid var(--line);padding:10px 12px}.prose th,.summary-table th{background:var(--blue-light)}.tool-card{display:block}.tool-card:only-child{grid-column:1/-1}.tool-stage{color:var(--blue);margin-bottom:16px;font-size:14px;font-weight:800;display:inline-block}.tool-workbench{background:var(--line);grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;margin-top:32px;padding:1px;display:grid}.tool-form,.tool-output{background:var(--white);padding:28px}.tool-form label{gap:6px;margin-bottom:18px;font-weight:700;display:grid}.tool-form input,.tool-form select,.tool-form textarea,.tool-output textarea{width:100%;color:var(--ink);background:var(--white);border:1px solid var(--blue);padding:10px 12px}.tool-form textarea,.tool-output textarea{resize:vertical;min-height:132px}.button-row{flex-wrap:wrap;gap:10px;display:flex}.text-button{min-height:44px;color:var(--white);background:var(--blue);border:1px solid var(--blue);cursor:pointer;padding:8px 18px}.text-button.secondary{color:var(--blue);background:var(--white)}.tool-status{min-height:1.8em;margin-top:12px}.privacy-hint{margin-top:8px;font-size:14px;font-weight:400}.source-notes{border-top:1px solid var(--line);margin-top:40px;padding-top:40px}.source-notes details{border:1px solid var(--line);padding:18px 20px}.source-notes-body{padding-top:16px}.source-notes-body p:last-child,.source-notes-body ul:last-child{margin-bottom:0}.topic-rules{background:var(--line);grid-template-columns:1fr 1fr;gap:1px;margin-top:24px;padding:1px;display:grid}.topic-rules div{background:var(--white);padding:18px}.topic-rules dt{color:var(--blue);font-weight:800}.topic-rules dd{margin:4px 0 0}.project-summary{margin-bottom:40px}.search-panel{max-width:940px}.search-controls{grid-template-columns:minmax(0,1fr) 180px 180px;gap:12px;margin-bottom:24px;display:grid}.search-controls label{flex-direction:column;gap:6px;font-weight:700;display:flex}.search-controls input,.search-controls select{min-height:46px;color:var(--ink);background:var(--white);border:1px solid var(--blue);padding:8px 12px}.search-results{background:var(--line);gap:1px;padding:1px;display:grid}.search-result{color:var(--ink);background:var(--white);padding:20px;text-decoration:none;display:block}.search-result:hover{color:var(--ink);background:var(--blue-light)}.search-result strong,.search-result span{display:block}.search-result span{margin-top:4px;font-size:14px}.site-footer{border-top:1px solid var(--line)}.footer-inner{justify-content:space-between;gap:24px;padding-block:24px;display:flex}.footer-inner p{margin:0}@media (width>=1530px){.article-shell{width:min(100% - 40px,1490px)}}@media (width<=1529px){.article-grid{grid-template-columns:minmax(0,900px);justify-content:center}.article-toc{grid-column:1;width:auto;position:static}.article-main{grid-column:1}}@media (width<=900px){:root{--gutter:clamp(20px, 4vw, 40px)}.header-inner{gap:10px}.site-name{font-size:16px}.site-header nav a,.search-trigger{padding-inline:8px}.tool-workbench{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-item{grid-template-columns:120px minmax(0,1fr)}.content-meta{grid-column:2}.content-list-cards .content-item{grid-template-columns:240px minmax(0,1fr)}.search-controls{grid-template-columns:1fr 1fr}.search-controls label:first-child{grid-column:1/-1}}@media (width<=700px){:root{--header-height:60px;--gutter:20px}html{scroll-padding-top:calc(var(--header-height) + 16px)}.site-header{height:var(--header-height);position:fixed}.header-inner{flex-wrap:nowrap;position:relative}.menu-toggle{align-items:center;display:inline-flex}.site-header nav{background:var(--white);border:1px solid var(--line);align-items:stretch;padding:10px;display:none;position:absolute;top:calc(100% + 1px);left:0;right:0}.site-header nav[data-open]{display:block}.site-header ul{width:100%;display:grid}.site-header nav li,.site-header nav li:last-child{width:100%}.site-header nav li:before,.site-header nav li:last-child:after{display:none}.site-header nav a,.search-trigger{width:100%;min-height:44px;box-shadow:none;margin-left:0;padding-inline:12px}main{padding-top:calc(var(--header-height) + 36px)}.editor-preview-mode main{padding-top:calc(var(--header-height) + 72px)}.page-hero h1{font-size:40px}.page-subtitle{font-size:22px}.home-hero{min-height:330px}.home-hero-copy{width:calc(100% - 40px);padding:56px 24px}.topic-grid,.project-grid,.about-grid,.tool-grid,.topic-rules,.search-controls{grid-template-columns:1fr}.search-controls label:first-child{grid-column:auto}.footer-inner{flex-direction:column}.section-heading{flex-direction:column;align-items:flex-start;gap:8px}.content-item{grid-template-columns:1fr;gap:8px}.content-thumbnail{margin-bottom:8px}.content-meta{grid-column:1}.content-tag{max-width:100%;overflow-x:auto}.content-list-cards .content-item{grid-template-rows:auto auto auto;grid-template-columns:1fr}.content-list-cards .content-thumbnail{aspect-ratio:16/9;border-right:0;border-bottom:1px solid var(--line);grid-row:auto;min-height:0;margin-bottom:0}.content-list-cards .content-meta{grid-column:1;padding-inline:22px}.tool-form,.tool-output,.topic-card,.project-card,.about-card,.tool-card{padding:22px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}