@font-face{font-family:Montserrat;src:url('assets/montserrat.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:Raleway;src:url('assets/raleway.woff2') format('woff2');font-weight:100 900;font-display:swap}
:root{--ink:#24282d;--muted:#59636e;--accent:#cc1731;--accent-hover:#b0132a;--line:#d8dfe4;--paper:#fff;--panel:#f3f6f8;--soft:#fceef1;--radius:12px;color-scheme:light;font-family:Raleway,sans-serif;font-size:16px;line-height:1.7;font-weight:500;color:var(--ink);background:var(--paper);scroll-padding-top:96px}
*{box-sizing:border-box}
body{margin:0}
::selection{background:var(--soft);color:var(--ink)}
a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}
a:hover{color:var(--accent)}
button,input{font:inherit}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.55}
:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.skip{position:fixed;z-index:100;left:20px;top:-100px;background:var(--ink);color:#fff;padding:10px 18px;border-radius:8px}
.skip:focus{top:12px;color:#fff}
.skip:hover{color:#fff}
.header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:26px;height:76px;padding:0 40px;border-bottom:1px solid var(--line);background:var(--paper)}
.brand{font-family:Montserrat,sans-serif;font-size:20px;font-weight:750;letter-spacing:-.035em;text-decoration:none;white-space:nowrap}
.brand span{font-weight:500;font-size:13px;margin-left:4px;color:var(--muted)}
.header-label{padding-left:26px;border-left:1px solid var(--line);color:var(--muted);font-size:14px}
.panel-link{display:inline-flex;align-items:center;gap:9px;margin-left:auto;font-size:14px;font-weight:650;text-decoration:none}
.layout{display:grid;grid-template-columns:260px minmax(0,960px);gap:64px;max-width:1400px;margin:0 auto;padding:0 40px}
.sidebar{align-self:start;position:sticky;top:76px;min-width:0;padding:48px 22px 26px 0;max-height:calc(100dvh - 76px);overflow:auto}
.course-name{font-family:Montserrat,sans-serif;font-weight:650;font-size:16px;line-height:1.55;letter-spacing:-.02em;margin:0 0 8px}
.course-position{color:var(--muted);font-size:13px;margin:0 0 30px}
.toc summary{list-style:none;font-size:12px;font-weight:750;margin-bottom:16px;color:var(--muted)}
.toc summary::-webkit-details-marker{display:none}
.toc ol{list-style:none;counter-reset:steps;margin:0 0 18px;padding:0}
.toc li{counter-increment:steps;margin:0 0 5px}
.toc li a{display:flex;gap:10px;align-items:baseline;border-radius:6px;text-decoration:none;padding:7px 8px;font-size:13px;line-height:1.5}
.toc li a::before{content:counter(steps);font-size:12px;font-family:Montserrat,sans-serif;flex:0 0 18px;color:var(--muted)}
.toc li a[aria-current="location"]{color:var(--accent);background:var(--soft);font-weight:700}
.toc li a[aria-current="location"]::before{color:var(--accent)}
.toc a:hover{background:var(--panel)}
.toc-check{display:block;margin:12px 8px;font-size:12px;line-height:1.5;text-decoration:none;color:var(--muted)}
.sidebar-foot{border-top:1px solid var(--line);margin-top:28px;padding-top:16px;color:var(--muted);font-size:12px;line-height:1.65}
.sidebar-foot p{margin:0 0 14px}
.print-link,.reset-link{padding:0;border:0;background:none;color:var(--ink);font-size:12px;text-decoration:underline;text-underline-offset:4px}
.print-link:hover,.reset-link:hover{color:var(--accent)}
main{min-width:0;padding:60px 0 0}
h1,h2,h3{font-family:Montserrat,sans-serif;font-weight:650;line-height:1.22;letter-spacing:-.03em;text-wrap:balance}
h1{font-size:44px;max-width:760px;margin:0 0 24px}
h2{font-size:27px;margin:0 0 20px}
h3{font-size:17px;letter-spacing:-.015em;margin:0 0 10px}
p{max-width:70ch;margin:0 0 20px}
strong{font-weight:750}
.lead{font-size:20px;line-height:1.6;max-width:62ch}
.example-note{font-size:13px;color:var(--muted);max-width:82ch;line-height:1.7;margin:24px 0}
.start-link{display:inline-flex;gap:12px;align-items:center;font-size:13px;font-weight:750;margin:0 0 4px;color:var(--accent);text-decoration:none}
.start-link:hover{color:var(--accent-hover);text-decoration:underline}
.figure{margin:30px 0 32px;max-width:100%}
.result-figure{margin:32px 0 46px}
.shot{display:block;position:relative;width:100%;border:0;border-radius:var(--radius);overflow:hidden;background:var(--panel);padding:0;text-align:left;line-height:0;box-shadow:0 10px 28px -18px #25354460}
.shot img{display:block;width:100%;height:auto}
.zoom-label{position:absolute;right:12px;bottom:12px;border-radius:6px;padding:7px 10px;background:var(--ink);color:#fff;font-size:12px;line-height:1.4;font-weight:650;transition:background .16s}
.shot:hover .zoom-label{background:var(--accent)}
figcaption{margin:12px 0 0;color:var(--muted);font-size:12px;line-height:1.7;max-width:86ch}
.before{padding:32px 0 12px;border-top:1px solid var(--line)}
.before h2{font-size:20px}
.before p{font-size:14px}
.first-access{border:1px solid var(--line);border-radius:8px;margin:24px 0;padding:16px 18px;font-size:13px}
.first-access summary,.publication-shot summary{cursor:pointer;font-weight:700;line-height:1.6}
.first-access[open] summary{margin-bottom:16px}
.first-access p{font-size:13px;margin-bottom:12px}
.first-access p:last-child{margin-bottom:0}
.image-help{color:var(--muted);font-size:12px!important}
.step{padding:44px 0 20px;border-top:1px solid var(--line);margin-top:36px;scroll-margin-top:94px}
.step-heading{display:flex;align-items:baseline;gap:18px;margin-bottom:20px}
.step-heading h2{margin:0}
.step-number{font-family:Montserrat,sans-serif;font-size:19px;color:var(--accent);font-weight:650;flex:none;min-width:22px;font-variant-numeric:tabular-nums}
.pin{position:absolute;display:grid;place-items:center;width:26px;height:26px;border:2px solid #fff;border-radius:50%;background:var(--accent);color:#fff;font-family:Montserrat,sans-serif;font-size:12px;font-weight:750;line-height:1;box-shadow:0 3px 9px #24282d40}
.pin-model{left:24%;top:22%}
.pin-name{left:66%;top:67%}
.pin-create{left:85%;top:89%}
.legend{display:flex;flex-wrap:wrap;gap:8px 20px;color:var(--ink);margin:0 0 5px;font-weight:650}
code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em;padding:3px 5px;border-radius:4px;background:var(--panel);overflow-wrap:anywhere}
.reading-note{margin:28px 0 12px;padding:24px 26px;background:var(--panel);border-radius:var(--radius)}
.reading-note p{font-size:14px;margin:0}
.exercise{padding:36px;border-radius:var(--radius);background:var(--panel);margin:48px 0;scroll-margin-top:96px}
.exercise>p{font-size:14px}
.checklist{margin-top:24px}
.checklist label{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:14px;cursor:pointer;line-height:1.65}
.checklist input{flex:none;width:19px;height:19px;margin:3px 0 0;accent-color:var(--accent);cursor:pointer}
.checklist label:has(input:checked){color:var(--muted)}
.progress{font-size:12px!important;font-weight:750;margin:22px 0 6px}
.progress[data-complete="true"]{color:#276347}
.publication{padding:12px 0 36px;scroll-margin-top:96px}
.publication-shot{margin-top:26px}
.publication-shot summary{font-size:13px}
.publication-shot .figure{margin-top:20px}
.article-footer{border-top:1px solid var(--line);padding:36px 0 64px}
.article-footer h2{font-size:21px}
.article-footer p{font-size:14px}
.article-footer a{font-size:13px;font-weight:700}
.page-footer{border-top:1px solid var(--line);padding:24px 40px;display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}
.image-dialog{width:calc(100vw - 48px);max-width:1560px;max-height:calc(100dvh - 32px);padding:0;border:0;border-radius:12px;background:var(--paper);color:var(--ink);box-shadow:0 22px 70px -14px #0007}
.image-dialog::backdrop{background:#15202be0}
.image-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:var(--paper)}
.image-dialog-head h2{font-size:14px;line-height:1.5;margin:0;letter-spacing:-.01em;text-wrap:initial}
.image-dialog-head button{display:inline-flex;align-items:center;gap:5px;flex:none;border:0;border-radius:6px;padding:8px 10px;background:var(--panel);color:var(--ink);font-size:12px}
.image-dialog-head button:hover{background:var(--soft);color:var(--accent)}
.image-dialog-body{overflow:auto;max-height:calc(100dvh - 174px);background:var(--panel)}
.image-dialog-body img{display:block;max-width:100%;height:auto;margin:auto}
.image-original{display:inline-block;margin:14px 20px;font-size:12px}
[hidden]{display:none!important}
@media(min-width:1500px){.layout{gap:80px}.header{padding-inline:max(40px,calc((100vw - 1320px)/2))}}
@media(max-width:1100px){.layout{grid-template-columns:220px minmax(0,1fr);gap:32px;padding:0 28px}.header{padding:0 28px}h1{font-size:38px}.lead{font-size:18px}.sidebar{padding-right:8px}.step-heading{gap:12px}h2{font-size:24px}}
@media(max-width:760px){:root{font-size:15px;scroll-padding-top:86px}.header{height:64px;padding:0 20px;gap:12px}.brand{font-size:18px}.brand span{font-size:12px}.header-label{display:none}.panel-link{font-size:12px;gap:4px}.panel-link svg{width:16px;height:16px}.layout{display:block;padding:0 22px}.sidebar{position:static;max-height:none;padding:22px 0 0;overflow:visible}.course-name{font-size:12px;margin:0 0 3px}.course-position{font-size:12px;margin:0 0 14px}.toc{border-block:1px solid var(--line);padding:10px 0}.toc summary{font-size:12px;margin:0;display:flex;justify-content:space-between;align-items:center;min-height:26px}.toc summary::after{content:'+';font-size:19px;font-weight:500}.toc[open] summary::after{content:'−'}.toc[open] summary{margin-bottom:12px}.toc nav{padding-bottom:4px}.toc ol{margin-bottom:12px}.toc li a{font-size:13px;padding-block:8px}.toc-check{font-size:12px}.sidebar-foot{display:none}main{padding-top:30px}h1{font-size:32px;letter-spacing:-.035em;line-height:1.16;margin-bottom:20px}.lead{font-size:17px;line-height:1.65}.example-note{font-size:12px;margin:20px 0}.start-link{font-size:12px}.result-figure{margin-top:26px;margin-bottom:32px}.before{padding-top:26px}.before h2{font-size:19px}.first-access{padding:14px}.step{padding-top:30px;margin-top:26px;scroll-margin-top:84px}.step-heading{gap:10px;align-items:baseline}.step-number{font-size:16px;min-width:18px}h2{font-size:23px}p{margin-bottom:18px}.figure{margin:24px -8px 26px;max-width:calc(100% + 16px)}.shot{border-radius:8px}.zoom-label{right:6px;bottom:6px;padding:5px 7px;font-size:12px}figcaption{font-size:12px;margin:10px 8px 0;line-height:1.7}.legend{gap:4px 12px}.pin{width:20px;height:20px;border-width:1px;font-size:12px}.reading-note{padding:20px;margin-top:24px}.reading-note p{font-size:13px}.exercise{padding:24px 20px;margin:32px -4px}.exercise h2{font-size:22px}.checklist label{font-size:13px;padding-block:13px;gap:10px}.checklist input{width:20px;height:20px}.publication h2{font-size:22px}.publication-shot summary{font-size:12px}.article-footer{padding-block:28px 42px}.article-footer h2{font-size:20px}.page-footer{padding:22px;flex-direction:column;font-size:12px;gap:5px}.image-dialog{width:calc(100vw - 16px);max-height:calc(100dvh - 16px);border-radius:8px}.image-dialog-head{padding:12px;gap:10px}.image-dialog-head h2{font-size:12px}.image-dialog-head button{padding:8px;font-size:12px}.image-original{font-size:12px;margin-inline:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
@media print{:root{font-size:10pt}body{color:#000}.header{position:static;height:auto;padding:0 0 18px;border:0}.header-label,.panel-link,.sidebar,.start-link,.zoom-label,.page-footer,.reset-link,.image-dialog{display:none!important}.layout{display:block;padding:0;max-width:none}main{padding:0}h1{font-size:26pt}h2{font-size:17pt}.lead{font-size:12pt}.shot{box-shadow:none;border:1px solid #ccc}.figure{break-inside:avoid;margin:18px 0}.step{margin-top:20px;padding-top:22px}.exercise{padding:18px;background:#fff;border:1px solid #ccc;break-inside:avoid}.reading-note{background:#fff;border:1px solid #ccc;padding:16px}.article-footer{padding-bottom:0}.publication-shot,.first-access{display:none}.step-heading{break-after:avoid}p{orphans:3;widows:3}}