@charset "UTF-8";

:root {
  --marker:#80243e;
  --marker-active:#58162a;
  --marker-soft:#f7e9ee;
  --ink:#172c2b;
  --muted:#62716e;
  --green:#156956;
  --mint:#e7f0e9;
  --paper:#f7f8f4;
  --line:#dfe5df;
  --mono:var(--font-mono);
  --sans:var(--font-sans)}

* {
  box-sizing:border-box}
html {
  scroll-behavior:smooth;
  scroll-padding-top:106px}
body {
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font:var(--text-base)/1.75 var(--sans)}
a {
  color:inherit;
  text-decoration:none}
button,input,select {
  font:inherit}
button {
  cursor:pointer;
  color:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible {
  outline:3px solid #43a58c;
  outline-offset:4px}
img,svg {
  max-width:100%}
h1,h2,h3,p {
  margin:0}
h1,h2,h3 {
  line-height:1.3;
  letter-spacing:-.035em}
h1 {
  font-size:var(--text-hero);
  font-weight:650}
h2 {
  font-size:var(--text-h2);
  font-weight:620}
h3 {
  font-size:var(--text-lg);
  font-weight:600}
p {
  color:var(--muted)}
code,pre {
  font-family:var(--font-sans)}
code {
  font-size:.88em}
small {
  font-size:var(--text-sm)}
.wrap {
  max-width:1296px;
  margin:auto;
  padding:0 48px}
.header {
  height:86px;
  border-bottom:1px solid var(--line);
  background:#f7f8f4f2;
  backdrop-filter:blur(16px);
  position:sticky;
  top:0;
  z-index:20}
.header-inner {
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px}
.brand {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:var(--text-xl);
  letter-spacing:-.7px;
  white-space:nowrap;
  font-weight:700}
.brand em {
  font-style:normal;
  font-size:var(--text-xs);
  font-weight:600;
  background:var(--mint);
  border:1px solid #c9ddcf;
  padding:2px 6px;
  border-radius:5px;
  color:var(--green);
  letter-spacing:1px}
.brand-mark {
  display:inline-grid;
  place-items:center;
  width:29px;
  height:29px;
  border:1.5px solid var(--green);
  border-radius:50%;
  font-size:var(--text-xl);
  color:var(--green);
  line-height:1}
.nav {
  display:flex;
  gap:30px;
  align-items:center;
  margin-left:auto}
.nav a {
  font-size:var(--text-base);
  color:var(--muted);
  position:relative}
.nav a:hover,.nav a[aria-current] {
  color:var(--green)}
.nav a[aria-current]:after {
  content:"";
  width:5px;
  height:5px;
  background:var(--green);
  border-radius:50%;
  position:absolute;
  left:50%;
  bottom:-12px}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:15px;
  background:var(--green);
  border:1px solid var(--green);
  border-radius:8px;
  color:#fff;
  padding:13px 21px;
  font-size:var(--text-base);
  font-weight:550;
  line-height:1.5;
  transition:background .18s,transform .18s}
.button:hover {
  background:#0d5141;
  transform:translateY(-1px)}
.button.secondary {
  background:transparent;
  color:var(--ink);
  border-color:#c7d2ca}
.button.secondary:hover {
  background:var(--mint)}
.button.small {
  padding:9px 15px;
  font-size:var(--text-sm)}
.menu-button {
  display:none;
  background:none;
  border:1px solid var(--line);
  border-radius:6px;
  padding:7px 12px}
.eyebrow {
  font:var(--text-sm)/1.5 var(--mono);
  letter-spacing:2px;
  color:var(--green);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:22px}
.eyebrow:before {
  content:"";
  height:6px;
  width:6px;
  border-radius:50%;
  background:var(--green)}
.hero {
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:46px;
  padding-top:69px;
  padding-bottom:60px}
.hero h1 {
  font-size:clamp(36px,3.8vw,54px);
  line-height:1.42;
  margin-bottom:22px}
.hero h1 span {
  color:var(--green)}
.hero-copy>p {
  font-size:var(--text-base);
  line-height:1.95;
  max-width:465px}
.actions {
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:28px}
.hero-copy .micro {
  font-size:var(--text-xs);
  margin-top:19px;
  color:#72807b}
.study {
  background:#edf1e9;
  border:1px solid #d6dfd3;
  border-radius:22px;
  overflow:hidden;
  box-shadow:0 18px 45px #24493508;
  padding-bottom:22px}
.study-top {
  display:flex;
  justify-content:center;
  align-items:center;
  padding:17px 22px;
  font-size:var(--text-base);
  font-weight:600;
  color:var(--ink);
  letter-spacing:.5px}
.study-top span:last-child {
  display:flex;
  align-items:center;
  gap:6px}
.study img {
  display:block;
  width:100%;
  height:338px;
  object-fit:contain}
.study-bottom strong {
  font-weight:500;
  color:var(--green)}
.caption {
  font-size:var(--text-xs);
  text-align:right;
  margin-top:8px;
  color:#7b8580}
.facts {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:25px 0;
  gap:24px}
.fact {
  display:flex;
  align-items:center;
  gap:16px}
.fact:not(:first-child) {
  border-left:1px solid var(--line);
  padding-left:32px}
.fact strong {
  font-size:var(--text-lg);
  font-weight:550;
  letter-spacing:-.6px}
.fact p {
  font-size:var(--text-sm)}
.fact-icon {
  font:var(--text-sm) var(--mono);
  border:1px solid #c8d9ce;
  border-radius:10px;
  height:42px;
  min-width:42px;
  display:grid;
  place-items:center;
  color:var(--green)}
.section {
  padding-top:80px}
.section-heading {
  display:flex;
  justify-content:space-between;
  align-items:end;
  gap:30px;
  margin-bottom:30px}
.section-heading p {
  max-width:385px;
  font-size:var(--text-base)}
.section-heading .eyebrow {
  margin-bottom:13px}
.steps {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px}
.step {
  padding:27px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px}
.step-number {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:31px;
  font:var(--text-sm) var(--mono);
  color:#799184}
.step-number span {
  font-size:var(--text-xl);
  color:#9db0a3}
.step h3 {
  margin-bottom:13px}
.step p {
  font-size:var(--text-base);
  line-height:1.9}
.text-link {
  display:inline-block;
  color:var(--green);
  font-size:var(--text-sm);
  font-weight:550;
  margin-top:22px}
.text-link:hover {
  text-decoration:underline;
  text-underline-offset:5px}
.model-teaser {
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:60px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  padding:40px}
.model-teaser p {
  font-size:var(--text-base);
  line-height:1.95}
.label-art {
  min-height:250px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  align-content:center;
  transform:rotate(-3deg)}
.label-art span {
  padding:14px 10px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--paper);
  font:var(--text-sm) var(--mono);
  text-align:center;
  color:var(--muted)}
.label-art span:nth-child(3n+2) {
  transform:translateY(-16px)}
.label-art .accent {
  background:var(--green);
  color:white;
  border-color:var(--green)}
.mini-facts {
  display:flex;
  gap:28px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid #cddccc}
.mini-facts strong {
  display:block;
  font-size:var(--text-xl);
  font-weight:550}
.mini-facts span {
  font-size:var(--text-xs);
  color:var(--muted)}
.notice {
  background:#fbf5e9;
  border:1px solid #e8d7b7;
  color:#815b23;
  padding:14px 18px;
  border-radius:10px;
  font-size:var(--text-sm);
  line-height:1.85}
.notice.neutral {
  background:#edf4ef;
  border-color:#d5e4d9;
  color:#436a56}
.cta {
  display:flex;
  justify-content:space-between;
  gap:30px;
  align-items:center;
  padding:37px 0;
  border-top:1px solid var(--line);
  margin-top:75px}
.cta h2 {
  font-size:var(--text-h2);
  margin-bottom:7px}
.cta p {
  font-size:var(--text-sm)}
.footer {
  margin-top:35px;
  border-top:1px solid var(--line);
  padding:25px 0;
  color:#6f7f75;
  font-size:var(--text-xs)}
.footer-inner {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px}
.footer-links {
  display:flex;
  gap:22px}
.footer .brand {
  font-size:var(--text-base);
  font-weight:600}
.page-intro {
  padding-top:48px;
  padding-bottom:35px}
.breadcrumb {
  font-size:var(--text-xs);
  color:#8b938c;
  display:flex;
  gap:10px;
  margin-bottom:33px}
.page-intro .eyebrow {
  margin-bottom:14px}
.page-intro h1 {
  font-size:var(--text-hero);
  margin-bottom:18px}
.page-intro p {
  max-width:690px;
  font-size:var(--text-base)}
.page-title-row {
  display:flex;
  justify-content:space-between;
  align-items:end;
  gap:25px}
.guide-layout {
  display:grid;
  grid-template-columns:172px minmax(0,1fr);
  gap:42px}
.toc {
  position:sticky;
  top:120px;
  align-self:start;
  font-size:var(--text-sm)}
.toc-title {
  font:var(--text-xs) var(--mono);
  color:#859083;
  letter-spacing:1.6px;
  padding:0 13px 15px}
.toc a {
  display:block;
  color:var(--muted);
  padding:10px 13px;
  border-left:2px solid var(--line)}
.toc a:hover {
  background:var(--mint);
  color:var(--green);
  border-color:var(--green)}
.toc .aside-note {
  margin-top:25px;
  padding:17px 13px;
  border:1px solid var(--line);
  border-radius:9px;
  font-size:var(--text-xs);
  color:var(--muted)}
.guide-section {
  margin-bottom:48px;
  scroll-margin-top:110px}
.guide-heading {
  display:flex;
  align-items:center;
  gap:13px;
  margin-bottom:20px}
.guide-heading .index {
  font:var(--text-xs) var(--mono);
  color:var(--green);
  border:1px solid #cdded1;
  border-radius:6px;
  padding:4px 7px}
.guide-heading h2 {
  font-size:var(--text-xl)}
.requirements {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-bottom:18px}
.requirement {
  padding:20px;
  background:white;
  border:1px solid var(--line);
  border-radius:12px}
.requirement .key {
  font:var(--text-xs) var(--mono);
  color:#7c8e81;
  letter-spacing:1px;
  margin-bottom:10px}
.requirement strong {
  display:block;
  font-size:var(--text-xl);
  font-weight:600}
.requirement p {
  font-size:var(--text-xs);
  margin-top:7px}
.rule-table {
  width:100%;
  border-collapse:collapse;
  font-size:var(--text-sm);
  background:white}
.table-wrap {
  overflow:auto;
  border:1px solid var(--line);
  border-radius:12px}
.rule-table th,.rule-table td {
  padding:14px 19px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top}
.rule-table th {
  font-weight:500;
  color:var(--muted);
  width:140px;
  background:#f5f7f2}
.rule-table tr:last-child th,.rule-table tr:last-child td {
  border-bottom:0}
.rule-table td {
  color:#45594e}
.subnote {
  font-size:var(--text-xs);
  margin-top:12px;
  line-height:1.8}
.directory-layout {
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:25px;
  align-items:start}
.code-panel {
  background:#1b302c;
  color:#dfebe4;
  border-radius:13px;
  overflow:hidden;
  min-width:0}
.code-toolbar {
  padding:13px 17px;
  display:flex;
  justify-content:space-between;
  border-bottom:1px solid #ffffff18;
  align-items:center;
  font-size:var(--text-xs);
  color:#adbbad}
.code-panel pre {
  font-size:var(--text-sm);
  line-height:1.85;
  margin:0;
  padding:21px;
  overflow-x:auto}
.directory-notes {
  font-size:var(--text-sm);
  padding:2px 0}
.directory-notes ol {
  padding-left:20px;
  margin:0 0 18px}
.directory-notes li {
  margin-bottom:12px;
  color:var(--muted)}
.directory-notes li strong {
  color:var(--ink);
  font-weight:550}
.model-meta {
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:16px}
.tag {
  background:#edf1ea;
  color:#5c745f;
  font:var(--text-xs) var(--mono);
  padding:5px 9px;
  border:1px solid #dce5d8;
  border-radius:5px}
.model-toolbar {
  display:flex;
  justify-content:space-between;
  gap:15px;
  align-items:center;
  margin:24px 0 14px}
.model-toolbar label {
  font-size:var(--text-sm);
  color:var(--muted)}
select {
  max-width:100%;
  padding:9px 30px 9px 11px;
  background:white;
  border:1px solid #cdd9ce;
  border-radius:7px;
  color:var(--ink);
  font-size:var(--text-sm)}
.model-explorer {
  display:grid;
  grid-template-columns:1fr 1fr;
  background:white;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden}
.anatomy-panel {
  padding:18px 20px;
  background:radial-gradient(ellipse at 50% 45%,#f1f6ee 0,#f9faf6 75%);
  border-right:1px solid var(--line)}
.view-tabs {
  display:flex;
  justify-content:center;
  gap:3px;
  background:#e9eee5;
  padding:4px;
  border-radius:8px;
  margin:0 auto 8px;
  width:fit-content}
.view-tabs button {
  font-size:var(--text-xs);
  padding:6px 11px;
  border:0;
  background:none;
  border-radius:5px;
  color:#6e7e70}
.view-tabs button[aria-pressed=true] {
  background:white;
  color:var(--green);
  box-shadow:0 1px 4px #203d2210}
.anatomy-stage {
  height:382px}
.anatomy-stage svg {
  display:block;
  width:100%;
  height:100%;
  overflow:visible}
.bone {
  stroke:#c0cfc1;
  stroke-width:11;
  stroke-linecap:round;
  stroke-linejoin:round;
  fill:none}
.bone-fine {
  stroke:#c2d0c2;
  stroke-width:3;
  fill:none}
.figure-axis {
  fill:#899887;
  font:var(--text-xs) var(--mono)}
.figure-label {
  fill:var(--marker);
  font:var(--text-xs) var(--mono)}
.figure-leader {
  stroke:var(--marker);
  stroke-width:1;
  fill:none}
.anatomy-caption {
  text-align:center;
  font-size:var(--text-xs);
  line-height:1.7;
  color:#869080;
  margin-top:8px}
.label-panel {
  padding:18px;
  min-width:0}
.search-box {
  position:relative}
.search-box input {
  width:100%;
  padding:12px 15px 12px 39px;
  background:white;
  border:1px solid #d5dfd5;
  border-radius:9px;
  color:var(--ink);
  font-size:var(--text-sm)}
.search-symbol {
  position:absolute;
  left:15px;
  top:11px;
  color:#7f9184;
  font-size:var(--text-base)}
.label-count {
  font-size:var(--text-xs);
  color:#81917f;
  margin:13px 0 8px;
  display:flex;
  justify-content:space-between}
.label-list {
  height:224px;
  overflow-y:auto;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  scrollbar-width:thin}
.label-row {
  display:grid;
  grid-template-columns:25px 1fr auto;
  gap:7px;
  width:100%;
  text-align:left;
  border:0;
  border-bottom:1px solid #edf0e9;
  background:white;
  padding:10px 8px;
  align-items:center}
.label-row:hover {
  background:#f4f8f1}
.label-row[aria-pressed=true] {
  background:#fff8bd;
  color:var(--marker)}
.label-row code {
  font-size:var(--text-sm)}
.label-row small {
  font-size:var(--text-xs);
  color:#81917f}
.label-row span {
  font-size:var(--text-xs);
  color:#81917f}
.label-detail {
  margin-top:14px;
  background:#f1f5ed;
  border-radius:8px;
  padding:13px;
  font-size:var(--text-xs);
  line-height:1.8;
  color:#677b65;
  min-height:111px;
  overflow-wrap:anywhere}
.label-detail strong {
  display:inline;
  font:var(--text-base) var(--mono);
  color:var(--marker)}

.label-detail span {
  font-size:var(--text-xs)}
.empty-state {
  padding:28px 18px;
  text-align:center;
  font-size:var(--text-sm);
  color:var(--muted)}
.original {
  margin-top:19px;
  border:1px solid var(--line);
  background:white;
  border-radius:10px;
  overflow:hidden}
.original summary {
  padding:15px 19px;
  font-size:var(--text-sm);
  cursor:pointer}
.original-content {
  padding:0 18px 18px}
.original img {
  display:block;
  border-radius:8px;
  width:100%;
  margin-bottom:8px}
.original-content a {
  font-size:var(--text-sm);
  color:var(--green)}
.checklist {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px}
.check-item {
  display:flex;
  gap:10px;
  align-items:start;
  border:1px solid var(--line);
  background:white;
  padding:17px;
  border-radius:10px;
  font-size:var(--text-sm);
  color:#50654f}
.check-item span {
  color:var(--green);
  font-size:var(--text-base)}
.faq-hero {
  text-align:center;
  padding:59px 0 36px}
.faq-hero .eyebrow {
  justify-content:center}
.faq-hero h1 {
  font-size:var(--text-hero);
  margin-bottom:17px}
.faq-hero p {
  font-size:var(--text-base)}
.faq-layout {
  display:grid;
  grid-template-columns:218px minmax(0,1fr);
  gap:42px;
  margin:12px 0 0}
.faq-side {
  align-self:start;
  position:sticky;
  top:114px}
.faq-categories {
  display:flex;
  flex-direction:column;
  gap:6px}
.faq-categories button {
  border:0;
  background:none;
  text-align:left;
  color:var(--muted);
  padding:12px 15px;
  border-radius:8px;
  font-size:var(--text-sm);
  display:flex;
  justify-content:space-between}
.faq-categories button[aria-pressed=true] {
  background:#e5ede2;
  color:var(--green);
  font-weight:550}
.faq-categories button span {
  font:var(--text-xs) var(--mono);
  opacity:.7}
.help-card {
  padding:20px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  margin-top:25px}
.help-card h3 {
  font-size:var(--text-base);
  margin-bottom:10px}
.help-card p {
  font-size:var(--text-xs)}
.faq-count {
  font-size:var(--text-xs);
  color:#85917f;
  margin-bottom:16px;
  display:flex;
  justify-content:space-between}
.faq-item {
  border:1px solid var(--line);
  background:white;
  border-radius:11px;
  margin-bottom:11px;
  overflow:hidden}
.faq-item summary {
  cursor:pointer;
  padding:20px 23px;
  list-style:none;
  font-size:var(--text-base);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  font-weight:500}
.faq-item summary::-webkit-details-marker {
  display:none}
.faq-item summary:after {
  content:"+";
  font:var(--text-lg) var(--mono);
  color:#799172;
  font-weight:400}
.faq-item[open] summary:after {
  content:"−"}
.faq-item[open] {
  border-color:#bdd1bb}
.faq-answer {
  padding:0 23px 22px;
  color:var(--muted);
  font-size:var(--text-sm);
  line-height:1.95}
.faq-answer a {
  color:var(--green);
  text-decoration:underline;
  text-underline-offset:4px}
.faq-category-label {
  font:var(--text-xs) var(--mono);
  color:#72936f;
  display:block;
  margin-bottom:8px}
.bottom-note {
  margin-top:27px;
  font-size:var(--text-xs);
  color:#85917f}
.skip-link {
  position:fixed;
  top:-60px;
  left:20px;
  padding:10px;
  background:white;
  z-index:100}
.skip-link:focus {
  top:10px}
[hidden] {
  display:none!important}

.original-content img {
  height:auto}

.view-tabs {
  width:100%;
  gap:2px;
  margin-bottom:7px}

.view-tabs button {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:4px;
  flex:1;
  padding:8px 5px;
  white-space:nowrap;
  font-size:var(--text-sm)}

.view-count {
  font:var(--text-xs) var(--mono);
  font-variant-numeric:tabular-nums;
  color:inherit}

.view-tabs button:disabled {
  opacity:.4;
  cursor:not-allowed;
  background:none;
  box-shadow:none}

.anatomy-stage {
  height:440px;
  background:#fff}



@media(min-width:1500px) {
  .hero {
  padding-top:88px;
  padding-bottom:80px}
.study img {
  height:385px}
}

@media(max-width:1050px) {
  .wrap {
  padding:0 28px}
.header-inner {
  gap:20px}
.nav {
  gap:20px}
.hero {
  gap:25px;
  padding-top:45px;
  padding-bottom:45px}
.hero h1 {
  font-size:var(--text-h1)}
.study img {
  height:310px}
.fact {
  gap:10px}
.fact:not(:first-child) {
  padding-left:20px}
.fact strong {
  font-size:var(--text-lg)}
.guide-layout {
  grid-template-columns:140px minmax(0,1fr);
  gap:25px}
.directory-layout {
  grid-template-columns:1fr}
.model-teaser {
  gap:28px;
  padding:30px}
.page-intro h1 {
  font-size:var(--text-h1)}
.faq-layout {
  gap:25px;
  grid-template-columns:190px 1fr}
}

@media(max-width:760px) {
  .wrap {
  padding:0 20px}
.header {
  height:70px}
.header-inner {
  gap:12px}
.brand {
  font-size:var(--text-lg);
  gap:7px}
.brand-mark {
  width:25px;
  height:25px}
.header-cta {
  margin-left:auto;
  font-size:var(--text-xs)!important;
  padding:8px 10px!important}
.menu-button {
  display:block;
  font-size:var(--text-xs);
  padding:7px 9px}
.nav {
  display:none;
  position:absolute;
  left:0;
  right:0;
  top:69px;
  background:var(--paper);
  padding:20px;
  border-bottom:1px solid var(--line);
  margin:0;
  flex-direction:column;
  align-items:stretch;
  gap:16px}
.nav.is-open {
  display:flex}
.nav a[aria-current]:after {
  left:auto;
  right:8px;
  bottom:8px}
.hero {
  grid-template-columns:1fr;
  padding-top:37px;
  padding-bottom:33px;
  gap:30px}
.hero h1 {
  font-size:var(--text-h1)}
.hero-copy>p {
  font-size:var(--text-base)}
.eyebrow {
  font-size:var(--text-xs);
  letter-spacing:1.6px;
  margin-bottom:17px}
.hero-copy .micro {
  font-size:var(--text-xs)}
.study img {
  height:300px}
.facts {
  grid-template-columns:1fr;
  gap:17px;
  padding:22px 0}
.fact:not(:first-child) {
  border:0;
  padding:0}
.fact strong {
  font-size:var(--text-lg)}
.fact>div:last-child {
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap}
.fact-icon {
  height:34px;
  min-width:34px}
.section {
  padding-top:47px}
.section-heading {
  display:block}
.section-heading p {
  margin-top:15px}
h2 {
  font-size:var(--text-h2)}
.steps {
  grid-template-columns:1fr;
  gap:13px}
.step {
  padding:22px}
.step-number {
  margin-bottom:17px}
.step p {
  font-size:var(--text-sm)}
.model-teaser {
  grid-template-columns:1fr;
  padding:26px;
  gap:14px}
.label-art {
  min-height:170px}
.label-art span {
  font-size:var(--text-xs);
  padding:11px 8px}
.cta {
  margin-top:46px;
  display:block}
.cta .button {
  margin-top:21px}
.cta h2 {
  font-size:var(--text-xl)}
.footer-inner {
  align-items:start;
  flex-direction:column;
  gap:13px}
.footer {
  margin-top:0}
.footer-links {
  gap:16px;
  flex-wrap:wrap}
.page-intro {
  padding-top:28px;
  padding-bottom:28px}
.breadcrumb {
  margin-bottom:24px}
.page-intro h1 {
  font-size:var(--text-h1);
  line-height:1.4}
.page-title-row {
  display:block}
.page-intro p {
  font-size:var(--text-sm)}
.guide-layout {
  display:block}
.toc {
  position:static;
  margin-bottom:28px;
  display:flex;
  gap:6px;
  flex-wrap:wrap}
.toc-title,.toc .aside-note {
  display:none}
.toc a {
  border:1px solid var(--line);
  border-radius:6px;
  padding:7px 10px;
  font-size:var(--text-xs)}
.requirements {
  gap:7px}
.requirement {
  padding:13px 10px}
.requirement strong {
  font-size:var(--text-lg)}
.requirement .key {
  font-size:var(--text-xs);
  letter-spacing:0}
.requirement p {
  font-size:var(--text-xs)}
.rule-table th {
  width:94px}
.rule-table th,.rule-table td {
  padding:12px;
  font-size:var(--text-sm)}
.guide-heading h2 {
  font-size:var(--text-xl)}
.guide-section {
  margin-bottom:35px}
.model-explorer {
  grid-template-columns:1fr}
.anatomy-panel {
  border-right:0;
  border-bottom:1px solid var(--line)}
.anatomy-stage {
  height:370px}
.label-list {
  height:210px}
.model-toolbar {
  align-items:start;
  flex-wrap:wrap}
.checklist {
  grid-template-columns:1fr}
.faq-hero {
  padding-top:37px;
  padding-bottom:25px}
.faq-hero h1 {
  font-size:var(--text-h1)}
.faq-hero p {
  font-size:var(--text-sm)}
.faq-layout {
  display:block;
  margin-top:0}
.faq-side {
  position:static}
.faq-categories {
  flex-direction:row;
  flex-wrap:wrap;
  gap:5px;
  margin-bottom:23px}
.faq-categories button {
  font-size:var(--text-xs);
  padding:8px 10px;
  gap:8px;
  background:#eef1e9}
.help-card {
  display:none}
.faq-item summary {
  padding:17px;
  font-size:var(--text-base)}
.faq-answer {
  padding:0 17px 18px;
  font-size:var(--text-sm)}
.bottom-note {
  margin-bottom:37px}
.notice {
  padding:13px;
  font-size:var(--text-xs)}
}

@media(prefers-reduced-motion:reduce) {
  html {
  scroll-behavior:auto}
* {
  transition:none!important}
}

@media print {
  .header,.footer,.toc {
  display:none}
body {
  background:white}
.wrap {
  padding:0}
.guide-layout,.faq-layout {
  display:block}
.faq-side {
  display:none}
.label-list {
  height:auto;
  overflow:visible}
.study,.step,.model-explorer,.faq-item {
  break-inside:avoid}
}

.marker-control {
  cursor:pointer;
  touch-action:manipulation;
  outline:none}

.marker-hit {
  fill:transparent;
  stroke:none;
  pointer-events:all}

.marker-dot {
  fill:var(--marker);
  stroke:#fff;
  stroke-width:1.6;
  pointer-events:none}

.marker-dot.selected {
  fill:var(--marker-active);
  stroke:#fff;
  stroke-width:1.8}

.marker-halo {
  fill:none;
  stroke:var(--marker);
  stroke-width:1.6;
  pointer-events:none}

.marker-control:hover .marker-dot {
  fill:var(--marker-active);
  stroke-width:2}

.marker-control:focus-visible {
  outline:2px solid var(--marker);
  outline-offset:3px}

.figure-label,.figure-leader {
  pointer-events:none}

.visually-hidden {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip-path:inset(50%);
  white-space:nowrap;
  border:0}