:root{--paper:#f7f6f0;--ink:#272a27;--muted:#62665d;--accent:#e54525;--line:#cecec3;--wash:#eeeee5;--max:1280px;--gutter:clamp(22px,5vw,80px)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.75}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit;text-decoration:none}button{color:inherit}button:not(:disabled),a{touch-action:manipulation}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--ink);outline-offset:5px}::selection{background:var(--accent);color:var(--paper)}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35;letter-spacing:-.04em}h2{font-size:clamp(34px,4.3vw,58px);font-weight:650}h3{font-weight:650}svg{display:block}ul,ol{margin:0;padding:0;list-style:none}button{border:0;background:none}button[hidden],[hidden]{display:none!important}.section-shell{width:min(var(--max),calc(100% - var(--gutter)*2));margin-inline:auto}.section-space{padding-block:110px}.small-label{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:10px;letter-spacing:.07em;font-weight:500;line-height:1.5}.eyebrow{font-size:13px;letter-spacing:.04em;display:flex;align-items:center;gap:11px;font-weight:600}.section-number{font:11px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);border:1px solid var(--line);padding:2px 6px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:12px;left:20px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 18px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0);outline:3px solid var(--accent)}
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.section-heading{display:grid;grid-template-columns:1fr 1.75fr 1fr;column-gap:28px;align-items:start;margin-bottom:50px}.section-heading>.eyebrow{padding-top:11px}.section-intro{align-self:end;color:var(--muted);font-size:14px;line-height:1.9;padding-bottom:4px}.service-row{display:grid;grid-template-columns:1fr 2.25fr .5fr;column-gap:28px;border-top:1px solid var(--line);padding-block:33px 36px;align-items:start}.service-row:last-child{border-bottom:1px solid var(--line)}.service-number{padding-top:12px;color:var(--muted)}.service-content h3{font-size:25px;letter-spacing:-.02em;margin-bottom:15px}.service-content>p{color:var(--muted);font-size:14px;line-height:1.9;max-width:575px}.service-tags{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:11px}.service-tags>li{display:flex;gap:7px;align-items:center}.service-tags>li::before{content:"";width:3px;height:3px;background:var(--accent)}.service-icon{width:68px;height:68px;justify-self:end;margin-top:4px}.approach{background:var(--wash);border-block:1px solid var(--line)}.process-list{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.process-list>li{border-top:1px solid var(--ink);padding-top:18px}.process-index{display:flex;justify-content:space-between;align-items:center;font:500 44px/1.2 ui-monospace,Consolas,monospace;margin-bottom:33px}.process-index>span{font-size:28px;color:var(--accent);font-family:Arial,sans-serif}.process-list h3{font-size:21px;letter-spacing:-.02em;margin-bottom:15px}.process-list p{font-size:14px;color:var(--muted);line-height:1.9}.process-note{display:block;margin-top:32px;color:var(--muted)}
.concept-disclaimer{font-size:12px;color:var(--muted);margin-bottom:20px;display:flex;gap:9px;line-height:1.8}.concept-disclaimer>span{color:var(--accent)}.concept-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.concept-tabs>button{position:relative;display:flex;gap:16px;align-items:center;text-align:left;cursor:pointer;padding:23px 22px;font-size:14px;font-weight:600;transition:background .15s,color .15s}.concept-tabs>button+button{border-left:1px solid var(--line)}.concept-tabs>button[aria-selected=true]{background:var(--ink);color:var(--paper)}.concept-tabs>button:hover:not([aria-selected=true]){background:var(--wash)}.concept-tabs .small-label{color:var(--muted)}.concept-tabs>button[aria-selected=true] .small-label{color:#d7d9cc}.tab-arrow{margin-left:auto;font-size:19px;color:var(--accent)}.concept-panel{display:grid;grid-template-columns:1.45fr 1fr;border-bottom:1px solid var(--ink)}.concept-preview{padding:25px 27px 24px;position:relative;min-height:448px;display:flex;flex-direction:column;background:var(--wash);overflow:hidden}.preview-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--muted)}.demo-stamp{font-size:10px;border:1px solid var(--line);padding:2px 7px;white-space:nowrap;color:var(--ink)}.preview-corner{margin-top:auto;padding-top:25px;color:var(--muted)}.concept-description{padding:44px 38px;display:flex;flex-direction:column}.concept-category{color:var(--muted);margin-bottom:20px}.concept-description h3{font-size:clamp(24px,2.6vw,34px);margin-bottom:22px}.concept-description>p:not(.small-label){font-size:14px;color:var(--muted);line-height:1.9}.concept-facts{margin-block:28px 20px;border-top:1px solid var(--line);font-size:12px}.concept-facts>div{display:grid;grid-template-columns:28px 1fr;gap:15px;padding-top:15px}.concept-facts dt{font-weight:600}.concept-facts dd{margin:0;color:var(--muted);line-height:1.8}.concept-status{font-size:10px;color:var(--muted);display:flex;gap:7px;align-items:center;margin-top:auto}.concept-status::before{content:"";width:4px;height:4px;background:var(--accent);border-radius:50%}.lesson-sheet{width:85%;max-width:425px;margin:29px auto 0;padding:21px 25px;background:var(--paper);border:1px solid var(--ink);box-shadow:7px 7px 0 #dcdcce;transform:rotate(-2deg)}.lesson-header{display:flex;justify-content:space-between;align-items:center;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:10px}.sheet-symbol{font:22px/1 Arial,sans-serif;color:var(--accent)}.lesson-sheet h3{font-size:28px;line-height:1.3;margin-block:18px}.lesson-body{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.mock-label{font-size:10px;color:var(--muted);margin-bottom:6px}.mock-text{font-size:11px;line-height:1.7}.mock-line{height:1px;width:100%;background:var(--line);margin-top:12px}.mock-line.short{width:60%;margin-top:8px}.lesson-path{font-size:10px;border-left:1px solid var(--line);padding-left:18px;display:flex;flex-direction:column;gap:7px}.lesson-path>span{display:flex;align-items:center;gap:8px}.lesson-path i{font-style:normal;font-size:9px;border:1px solid var(--line);width:19px;height:19px;display:grid;place-items:center}.lesson-path>span:first-child i{background:var(--ink);border-color:var(--ink);color:var(--paper)}.lesson-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:13px;margin-top:19px;font-size:10px}.lesson-footer b{font-weight:400;color:var(--accent)}.workflow-map{max-width:360px;width:80%;margin:23px auto 0}.workflow-input,.workflow-action,.workflow-output{border:1px solid var(--ink);padding:15px 18px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:3px 15px;background:var(--paper)}.workflow-map .small-label{font-size:8px}.workflow-map strong{font-size:14px;font-weight:550;grid-column:1}.paper-lines{grid-column:2;grid-row:1/3;display:grid;gap:4px;padding:10px 8px;border:1px solid var(--ink);width:27px}.paper-lines i{height:1px;background:var(--ink);width:100%}.workflow-connector{text-align:center;height:32px;display:grid;place-items:center;font-size:20px;line-height:1}.workflow-action{background:var(--ink);color:var(--paper)}.workflow-gear{grid-column:2;grid-row:1/3;color:var(--accent);font-size:40px;line-height:1}.workflow-output>span:last-child{grid-column:2;grid-row:1/3;font-size:25px;color:var(--accent)}.visual-composition{margin-block:auto;padding-top:20px}.visual-composition>svg{width:100%;height:auto}.visual-labels{display:flex;justify-content:space-around;font-size:12px;margin-top:-9px;letter-spacing:.15em}
.about{background:var(--ink);color:var(--paper)}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(35px,7vw,105px)}.about .section-number{border-color:#666b60;color:#c2c5b8}.about h2{margin-top:40px;font-size:clamp(36px,4.3vw,56px);line-height:1.4}.about h2>span{color:#b2b8a8}.about-signature{font:700 74px/1 Arial,sans-serif;letter-spacing:-5px;display:flex;gap:0;align-items:center;margin-top:38px}.about-signature>span{color:var(--accent)}.signature-line{height:1px;width:70px;background:#73786b;margin-inline:27px}.about-signature>small{color:#b2b8a8;letter-spacing:.05em}.about-copy{padding-top:72px}.about-copy p{font-size:15px;line-height:2;color:#c2c6ba}.about-copy .about-lead{font-size:23px;line-height:1.8;color:var(--paper);margin-bottom:25px;font-weight:550;letter-spacing:-.02em}.about-copy p+p{margin-top:20px}.about-note{display:flex;flex-wrap:wrap;gap:16px;align-items:center;border-top:1px solid #616759;margin-top:35px;padding-top:23px;color:#c2c6ba}.about-note>span:last-child{font-size:12px}.contact-top{display:flex;justify-content:space-between;align-items:center;gap:25px}.contact-top>.small-label{color:var(--muted)}.contact h2{position:relative;margin-block:45px 44px;font-size:clamp(47px,6.6vw,88px);line-height:1.3;letter-spacing:-.055em}.contact h2>span{color:var(--accent)}.contact h2>svg{position:absolute;right:6%;top:27px;width:clamp(60px,10vw,128px);height:auto;color:var(--accent)}.contact-bottom{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;border-top:1px solid var(--ink);padding-top:28px}.contact-bottom>p{font-size:14px;color:var(--muted);line-height:1.9}.contact-links{display:grid;grid-template-columns:1fr 1fr;gap:30px}.contact-links>a{display:flex;gap:14px;align-items:start;min-height:72px;padding-bottom:20px;border-bottom:1px solid var(--line);transition:border-color .2s}.contact-links>a>.small-label{padding-top:5px;color:var(--muted)}.contact-links>a>span:nth-child(2){font-family:Arial,system-ui,sans-serif;font-size:21px;line-height:1.4}.contact-links small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.contact-links>a>span:nth-child(3){margin-left:auto;font-size:23px;color:var(--accent);line-height:1.3;transition:transform .2s}.contact-links>a:hover{border-color:var(--ink)}.contact-links>a:hover>span:nth-child(3){transform:translate(3px,-3px)}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-block:25px 30px;border-top:1px solid var(--line)}.footer-brand{display:flex;gap:25px;font:700 14px/1.5 Arial,sans-serif;letter-spacing:-.03em;align-items:center}.footer-brand>span{font-size:22px;color:var(--accent);font-weight:400}.site-footer p{font-size:11px;color:var(--muted);letter-spacing:.05em}.site-footer small{font:10px/1.5 ui-monospace,Consolas,monospace;color:var(--muted)}@media(min-width:1500px){.hero h1{font-size:72px}}
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@media(max-width:400px){.discipline-strip{gap:9px}.discipline-strip>.small-label{max-width:70px;font-size:6.5px;flex-shrink:0}.discipline-strip p{gap:9px;font-size:14px;flex-shrink:0}.discipline-strip p span{white-space:nowrap}.strip-scroll{flex-shrink:0}.strip-scroll span{font-size:19px}}
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