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*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Deco Sans","Noto Sans CJK SC","Source Han Sans SC",sans-serif;font-size:16px;line-height:1.78;text-rendering:optimizeLegibility}
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.document-brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.brand-rule{width:29px;height:5px;background:linear-gradient(90deg,var(--teal) 0 55%,var(--blue) 55%)}
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.reading-progress{position:fixed;left:0;top:63px;z-index:101;width:100%;height:2px}.reading-progress span{display:block;width:0;height:100%;background:var(--teal)}
.page-shell{width:min(1260px,calc(100% - 48px));margin:0 auto;display:grid;grid-template-columns:var(--nav-width) minmax(0,var(--content-width));justify-content:space-between;gap:72px;align-items:start}
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.doc-section{padding:72px clamp(36px,8vw,88px);border-top:1px solid var(--line)}.doc-section>h2{margin:0 0 44px;font-size:28px;line-height:1.35;letter-spacing:-.025em}.doc-section>h2:after{content:"";display:block;width:42px;margin-top:17px;border-top:3px solid var(--teal)}
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.doc-section>h3{padding-top:26px;border-top:1px solid var(--line)}.doc-section>h3:first-of-type{padding-top:0;border-top:0}
.method-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:0;list-style:none;counter-reset:method;border:1px solid var(--line);background:var(--surface)}.method-flow li{position:relative;min-height:132px;margin:0;padding:48px 20px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);counter-increment:method;font-size:13px;line-height:1.55}.method-flow li:nth-child(3n){border-right:0}.method-flow li:nth-last-child(-n+3){border-bottom:0}.method-flow li:before{content:counter(method,decimal-leading-zero);position:absolute;top:16px;left:20px;color:var(--teal);font-size:11px;font-weight:700;letter-spacing:.1em}.method-flow li:not(:nth-child(3n)):after{content:"→";position:absolute;right:-9px;top:16px;z-index:2;width:18px;height:18px;background:var(--surface);color:var(--teal);text-align:center;line-height:18px}
.track-diagram{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.track-card{position:relative;margin:0;padding:24px 22px;border:1px solid var(--line);border-top:4px solid var(--teal);background:linear-gradient(180deg,var(--teal-soft),var(--surface) 34%)}.track-card:nth-child(2){border-top-color:var(--blue)}.track-card:nth-child(3){border-top-color:#5e8b9a}.track-card h3{margin:0 0 18px;padding:0;border:0;font-size:17px}.track-card p,.track-card ul{font-size:13px}.track-card p:last-child{margin-bottom:0}
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.phase-accordion{margin:0 clamp(36px,8vw,88px);border-top:1px solid var(--line)}.phase-accordion:last-of-type{margin-bottom:72px;border-bottom:1px solid var(--line)}.phase-accordion summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;cursor:pointer;list-style:none}.phase-accordion summary::-webkit-details-marker{display:none}.phase-name{font-size:20px;font-weight:720}.phase-toggle{color:var(--muted);font-size:11px}.phase-accordion[open] .phase-name{color:var(--teal)}.phase-content{padding:3px 0 42px}.phase-content>p:first-child{display:inline-block;margin:0 0 18px;padding:4px 9px;background:var(--teal-soft);color:var(--teal);font-size:12px}.phase-content h3{font-size:15px;color:var(--teal);margin-top:32px}.phase-content h3:last-of-type{margin-top:32px;padding:16px 18px 0;border-top:1px solid var(--line)}.phase-content h3:last-of-type+*{margin-left:18px;margin-right:18px}.phase-content ol,.phase-content ul{font-size:14px}
.output-matrix{width:100%;border-collapse:collapse;border-top:2px solid var(--teal)}.output-matrix th,.output-matrix td{padding:16px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.output-matrix th{width:28%;color:var(--teal);font-size:13px}.output-matrix td{font-size:14px}
.doc-section:last-of-type>ol{padding:0;list-style:none;counter-reset:conclusion}.doc-section:last-of-type>ol li{position:relative;margin:0;padding:16px 0 16px 48px;border-top:1px solid var(--line);counter-increment:conclusion;font-weight:650}.doc-section:last-of-type>ol li:before{content:counter(conclusion,decimal-leading-zero);position:absolute;left:0;color:var(--teal);font-size:12px}.doc-section:last-of-type>p:last-child{margin-top:36px;padding:22px;background:var(--ink);color:#fff}.document-footer{display:flex;justify-content:space-between;padding:28px clamp(36px,8vw,88px);border-top:1px solid var(--line);color:var(--muted);font-size:10px;letter-spacing:.1em;text-transform:uppercase}
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@media(max-width:760px){html{scroll-padding-top:72px}.document-bar{height:58px;padding:0 16px}.document-brand{font-size:10px}.document-actions button{display:none}.document-actions #tocToggle,.document-actions #printButton{display:inline-block}.reading-progress{top:57px}.page-shell{display:block;width:100%;margin:0}.toc{position:fixed;inset:58px 0 auto 0;z-index:90;display:none;height:auto;max-height:calc(100dvh - 58px);padding:0;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.toc.open{display:block}.toc-inner{max-height:calc(100dvh - 58px);padding:22px 24px 30px;overflow:auto}.toc a{font-size:13px;padding-top:9px;padding-bottom:9px}.document{border:0;box-shadow:none}.document-header{padding:54px 24px 48px}.document-header h1{font-size:34px}.document-summary{margin-top:40px}.doc-section{padding:54px 24px}.doc-section>h2{font-size:25px}.method-flow{grid-template-columns:1fr}.method-flow li{min-height:0;padding:44px 18px 18px;border-right:0}.method-flow li:nth-last-child(-n+3){border-bottom:1px solid var(--line)}.method-flow li:last-child{border-bottom:0}.method-flow li:after{display:none}.track-diagram{grid-template-columns:1fr}.phase-timeline{grid-template-columns:repeat(7,80px);overflow-x:auto;padding-bottom:14px}.phase-accordion{margin:0 24px}.phase-accordion:last-of-type{margin-bottom:54px}.phase-name{font-size:17px}.output-matrix,.output-matrix tbody,.output-matrix tr,.output-matrix th,.output-matrix td{display:block}.output-matrix tr{padding:14px 0;border-bottom:1px solid var(--line)}.output-matrix th,.output-matrix td{width:auto;padding:3px 0;border:0}.document-footer{padding:24px}.document-type{margin-bottom:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media print{@page{size:A4;margin:15mm 14mm}body{background:#fff;color:#111;font-size:10pt;line-height:1.55}.document-bar,.reading-progress,.toc,.skip-link{display:none!important}.page-shell{display:block;width:auto;margin:0}.document{box-shadow:none;border:0}.document-header,.doc-section{padding:0 0 10mm;border:0}.document-header{border-top:4pt solid #087981}.document-header h1{font-size:27pt}.document-summary{margin-top:12mm}.doc-section{break-before:page}.doc-section>h2{font-size:19pt;margin-bottom:8mm}.doc-section>h3{break-after:avoid}.method-flow,.track-diagram,.output-matrix{break-inside:avoid}.phase-timeline{display:none}.phase-accordion{margin:0;border-top:1px solid #bbb}.phase-accordion summary{padding:5mm 0}.phase-toggle{display:none}.phase-accordion:not([open]) .phase-content{display:block}.phase-content{padding-bottom:8mm}.document-footer{display:none}blockquote{background:#f1f5f5}.doc-section:last-of-type>p:last-child{background:#eee;color:#111}.track-card{background:#fff}}