@charset "UTF-8";

:root {
  --paper: #faf9f6;
  --ink: #232323;
  --muted: #77716d;
  --accent: #903c44;
  --line: #ddd8d2;
  --faint: #efebe7;
  --sans: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", SimSun, serif;
  --mono: Consolas, "Cascadia Code", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.9; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
button, input { font: inherit; }
button { cursor: pointer; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
a, button { touch-action: manipulation; }
button:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { color: var(--ink); background: #e8cdd0; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { line-height: 1.4; }
h2, h3, h4 { font-weight: 600; }
p { margin-bottom: 18px; }
p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 1.5em; }
img, svg { max-width: 100%; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); padding: 0; margin: -1px; white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 20px; top: -80px; z-index: 10; padding: 9px 16px; background: var(--ink); color: white; font-size: 14px; }
.skip-link:focus { top: 12px; }

.site-header { max-width: 1160px; margin: 0 auto; padding: 22px 0 18px; display: flex; align-items: baseline; gap: 20px; border-bottom: 1px solid var(--ink); }
.brand { color: var(--ink); font-family: var(--serif); font-size: 23px; font-weight: 700; letter-spacing: -.9px; text-decoration: none; white-space: nowrap; }
.edition { font-family: var(--mono); font-size: 11px; color: var(--muted); line-height: 1.5; }
.language-switch { display: flex; align-items: center; gap: 12px; margin-left: auto; flex-shrink: 0; }
.language-switch button { min-height: 36px; padding: 1px 0; background: transparent; border: 0; border-bottom: 1px solid transparent; border-radius: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.language-switch button[aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--ink); font-weight: 600; }
.language-switch button:hover { color: var(--accent); }

.page-shell { display: grid; grid-template-columns: 174px minmax(0, 780px); column-gap: 74px; max-width: 1160px; margin: 0 auto; align-items: start; }
.page-index { position: sticky; top: 26px; padding-top: 48px; align-self: start; }
.index-label { color: var(--muted); font-size: 11px; font-family: var(--mono); margin: 0 0 15px; }
.page-index nav { display: flex; flex-direction: column; gap: 12px; }
.page-index nav a { color: #625c58; font-size: 12px; line-height: 1.65; text-decoration: none; }
.page-index nav a:hover, .page-index nav a[aria-current="true"], .page-index nav a.active { color: var(--accent); text-decoration: underline; }
.page-index nav a span { color: #aba29b; font-family: var(--mono); font-size: 10px; margin-right: 10px; }
.page-index > p:last-child:not(.index-label) { margin-top: 30px; color: #948b84; font-size: 11px; line-height: 1.7; }
.article { min-width: 0; }
.article-header { padding: 45px 0 34px; }
.school-name { color: var(--muted); font-size: 12px; margin: 0 0 21px; line-height: 1.7; letter-spacing: .025em; }
.article-header h1 { max-width: 750px; margin: 0 0 23px; font-family: var(--serif); font-size: clamp(44px, 4.4vw, 58px); font-weight: 400; letter-spacing: -.025em; line-height: 1.06; }
.article-header h1 em { font-weight: 400; color: var(--accent); font-style: italic; }
.subtitle { font-size: 19px; font-weight: 400; line-height: 1.65; margin: 0 0 15px; letter-spacing: -.025em; }
.byline { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: 11px; line-height: 1.8; margin-bottom: 25px; }
.byline > span + span::before { content: "/"; color: #beb3aa; margin-right: 16px; }
.intro { font-size: 16px; max-width: 730px; line-height: 1.95; }
.quick-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 23px; font-size: 13px; }
.quick-links a { font-weight: 500; }
.quick-links a span { padding-left: 3px; }
.contents-mobile { display: none; }

.chapter { padding: 31px 0 0; margin-bottom: 45px; border-top: 1px solid var(--line); }
.chapter-heading { display: flex; align-items: baseline; gap: 15px; margin-bottom: 19px; }
.chapter-number { color: var(--accent); font-family: var(--mono); font-size: 11px; flex-shrink: 0; }
.chapter-heading h2 { margin: 0; font-size: 25px; font-weight: 600; letter-spacing: -.045em; }
.chapter > p { color: #55504d; }
.short-answer > p { margin-bottom: 15px; }
.short-answer > p strong { font-weight: 600; }
.short-answer ul { margin: 16px 0 23px; padding-left: 20px; }
.short-answer li { padding-left: 4px; margin-bottom: 7px; }
.inline-note { font-size: 13px; line-height: 1.9; color: var(--muted); }
.inline-note strong { color: #605953; font-weight: 600; }

.registration-lead { margin: 0 0 22px; }
.registration-link { display: block; margin: 22px 0; padding: 0 0 0 17px; border-left: 2px solid var(--accent); }
.registration-link h3, .registration-link strong { font-size: 17px; font-weight: 500; line-height: 1.7; }
.registration-link p { color: var(--muted); font-size: 13px; line-height: 1.9; margin-top: 8px; }
.registration-link > a { font-size: 15px; font-weight: 500; }
.registration-link span { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; }
.registration-steps { margin: 25px 0; }
.registration-steps ol { margin: 0; padding-left: 24px; }
.registration-steps li { padding-left: 9px; margin-bottom: 20px; }
.registration-steps li::marker { font-family: var(--mono); color: var(--accent); font-size: 12px; }
.registration-steps li > strong { display: block; font-weight: 600; margin-bottom: 4px; }
.registration-steps li > p { font-size: 15px; color: #57514d; margin-bottom: 8px; }
.registration-note { margin-top: 20px; font-size: 13px; color: var(--muted); line-height: 1.9; }
.registration-facts { margin: 22px 0 26px; }
.registration-facts dl { display: grid; grid-template-columns: 130px minmax(0, 1fr); margin: 0; border-top: 1px solid var(--line); }
.registration-facts dt, .registration-facts dd { font-size: 14px; padding: 10px 0; border-bottom: 1px solid var(--line); line-height: 1.9; }
.registration-facts dt { color: var(--muted); }
.registration-facts dd { margin-left: 0; }
.source-link { color: var(--muted); font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.source-link a { color: var(--accent); }

.route-tabs { display: flex; align-items: stretch; gap: 28px; margin: 28px 0 25px; border-bottom: 1px solid var(--line); }
.route-tabs button { min-height: 43px; padding: 8px 1px 10px; border: 0; border-radius: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 14px; line-height: 1.7; text-align: left; margin-bottom: -1px; }
.route-tabs button[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.route-tabs button:hover { color: var(--accent); }
.route-tabs button > span { font-size: 11px; margin-left: 8px; }
.route-content { outline-offset: 9px; }
.route-tag { display: block; font-family: var(--mono); color: var(--muted); font-size: 10px; margin-bottom: 8px; line-height: 1.6; }
.route-intro { margin-bottom: 25px; }
.route-intro h3 { margin-bottom: 10px; font-size: 20px; letter-spacing: -.035em; }
.route-intro p { margin: 0; color: #55504c; font-size: 15px; }
.route-body { display: block; }
.steps { margin-top: 5px; }
.step { display: grid; grid-template-columns: 28px minmax(0,1fr); gap: 12px; padding: 19px 0; border-top: 1px solid var(--line); }
.step-number { padding-top: 3px; font-family: var(--mono); font-size: 11px; color: var(--accent); }
.step h4 { font-size: 16px; margin: 0 0 7px; font-weight: 600; }
.step p { color: #514c49; font-size: 15px; margin-bottom: 9px; line-height: 1.9; }
.step-source { display: block; font-size: 11px; line-height: 1.8; color: #8d837d; }
.route-aside { margin: 22px 0 26px 40px; padding-left: 17px; border-left: 1px solid #b7a8a0; }
.aside-label { display: block; font-size: 11px; color: var(--muted); margin-bottom: 10px; }
.route-aside h4 { margin-bottom: 10px; font-size: 16px; font-weight: 500; }
.route-aside p, .route-aside li { color: #756b65; font-size: 13px; line-height: 1.9; }
.route-aside ul { padding-left: 19px; margin: 10px 0 17px; }
.route-aside li { margin-bottom: 4px; }
.button { display: inline-flex; align-items: center; gap: 9px; padding: 0; border: 0; border-bottom: 1px solid var(--accent); border-radius: 0; color: var(--accent); background: transparent; font-size: 14px; font-weight: 500; line-height: 1.8; text-decoration: none; }
.button:hover { border-bottom-width: 2px; }
.notice { display: flex; align-items: baseline; gap: 9px; margin: 25px 0 0; padding: 15px 0 0; border-top: 1px solid var(--line); font-size: 13px; line-height: 1.95; color: #73665f; }
.notice > span { color: var(--accent); font-family: var(--serif); font-size: 17px; }
.notice strong { color: var(--ink); font-weight: 600; }
.notice p { margin: 0; }

.overview-grid { border-top: 1px solid var(--line); margin-top: 24px; }
.overview-item { display: grid; grid-template-columns: 45px minmax(0,1fr) auto; align-items: baseline; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.overview-number { font-family: var(--mono); color: var(--muted); font-size: 11px; }
.overview-item h3 { font-weight: 400; font-size: 14px; margin: 0; line-height: 1.8; }
.overview-item p { font-size: 13px; margin: 0; line-height: 1.8; }
.overview-note { color: var(--muted); font-size: 13px; line-height: 1.9; margin-top: 20px; }
.planner-section { display: grid; grid-template-columns: 1fr 275px; gap: 35px; align-items: start; margin-top: 27px; padding-top: 23px; border-top: 1px solid var(--line); }
.planner-copy h3 { font-size: 17px; margin-bottom: 8px; }
.planner-copy p { color: #716761; font-size: 13px; line-height: 1.9; }
.planner-box label { display: block; color: #716761; font-size: 12px; line-height: 1.8; margin-bottom: 7px; }
.planner-input-row { display: flex; align-items: baseline; gap: 10px; }
.planner-input-row input { background: transparent; border: 1px solid #bdb2aa; border-radius: 0; width: 130px; min-width: 0; padding: 6px 9px; font-size: 19px; color: var(--ink); font-family: var(--serif); line-height: 1.5; }
.planner-input-row input[aria-invalid="true"] { border-color: var(--accent); }
.planner-input-row > span { font-size: 12px; color: var(--muted); }
.planner-progress { margin-top: 13px; height: 3px; background: #e1d9d2; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); transition: width .2s; }
.planner-result { margin: 11px 0; line-height: 1.8; font-size: 13px; }
.planner-result > strong { font-family: var(--serif); font-weight: 400; color: var(--accent); font-size: 27px; margin: 0 7px; }
.planner-result > p { display: inline; color: #716761; font-size: 12px; }
.planner-result > .target-complete { display: block; font-size: 14px; color: var(--accent); }
.planner-result > .target-complete + p { display: block; margin-top: 5px; }
.planner-result > .input-error { display: block; color: var(--accent); }
.planner-hint { font-size: 11px; color: var(--muted); line-height: 1.8; margin-top: 9px; }

.checklist-items { margin-top: 23px; border-top: 1px solid var(--line); }
.checklist-items label { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; line-height: 1.9; cursor: pointer; }
.checklist-items input { flex-shrink: 0; width: 16px; height: 16px; margin: 6px 0 0; accent-color: var(--accent); cursor: pointer; }
.checklist-items input:checked + span { color: #978d85; text-decoration: line-through; text-decoration-thickness: 1px; }
.check-count { display: inline; color: var(--muted); font-size: 12px; line-height: 1.8; }
.text-button { padding: 0; border: 0; background: transparent; color: var(--muted); border-radius: 0; font-size: 12px; line-height: 1.8; text-decoration: underline; text-underline-offset: 3px; margin-left: 13px; }
.text-button:hover { color: var(--accent); }
.checklist-footer { margin-top: 14px; }
.resource-list { margin: 21px 0; border-top: 1px solid var(--line); }
.resource-item { display: flex; align-items: baseline; gap: 16px; padding: 17px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.resource-item:hover .resource-action { text-decoration: underline; }
.resource-icon { font-family: var(--mono); color: var(--muted); font-size: 10px; min-width: 27px; flex-shrink: 0; }
.resource-info { flex: 1; min-width: 0; }
.resource-info h3 { font-size: 15px; font-weight: 500; margin: 0 0 4px; line-height: 1.8; }
.resource-info p { color: var(--muted); margin: 0; font-size: 12px; line-height: 1.9; }
.resource-action { color: var(--accent); white-space: nowrap; font-size: 12px; font-weight: 400; }
.resource-action span { margin-left: 5px; }
.source-details { margin-top: 25px; font-size: 13px; }
.source-details summary { cursor: pointer; color: #5e514a; font-size: 13px; }
.source-details dl { margin: 20px 0 0 0; }
.source-details dt { font-size: 12px; font-weight: 600; color: #61574f; overflow-wrap: anywhere; margin: 18px 0 5px; }
.source-details dd { font-size: 12px; color: #86786e; line-height: 1.9; margin-left: 0; }
.source-note { color: var(--muted); font-size: 11px; line-height: 1.9; margin-top: 20px; }
.faq-list { margin-top: 22px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 15px 25px 15px 0; cursor: pointer; font-size: 14px; font-weight: 500; list-style: none; line-height: 1.9; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 0; top: 13px; font-family: var(--mono); color: var(--muted); font-size: 17px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 25px 20px 0; font-size: 14px; color: #756a62; line-height: 1.95; }

.series-list { margin-top: 22px; }
.series-entry { display: block; border-top: 1px solid var(--line); padding: 18px 0 21px; color: var(--ink); text-decoration: none; }
.series-entry:last-child { border-bottom: 1px solid var(--line); }
a.series-entry:hover h3 { color: var(--accent); }
.series-number { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.series-status { font-size: 11px; color: var(--muted); margin-left: 16px; }
.series-entry h3 { font-family: var(--serif); font-size: 23px; font-weight: 400; letter-spacing: -.035em; line-height: 1.35; margin: 10px 0 8px; max-width: 590px; }
.series-entry h3 em { color: var(--accent); }
.series-entry h3 span { font-family: var(--sans); font-size: 16px; color: var(--accent); margin-left: 5px; }
.series-entry p, .series-entry small { color: var(--muted); font-size: 12px; line-height: 1.9; margin: 0; }
.site-footer { max-width: 1160px; padding: 22px 0 30px; margin: 5px auto 0; border-top: 1px solid var(--ink); }
.footer-top { display: flex; justify-content: space-between; align-items: baseline; gap: 15px; }
.footer-brand { font-family: var(--serif); font-size: 16px; font-weight: 600; letter-spacing: -.5px; text-decoration: none; color: var(--ink); }
.footer-brand > span { font-family: var(--sans); font-size: 11px; letter-spacing: 0; font-weight: 400; color: var(--muted); margin-left: 12px; }
.back-top { color: var(--muted); font-size: 11px; white-space: nowrap; text-decoration: none; }
.footer-note { font-size: 11px; color: var(--muted); line-height: 1.9; max-width: 780px; margin: 12px 0 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; font-size: 11px; color: var(--muted); margin-top: 16px; }
.footer-bottom > p { margin: 0; }

html[lang="en"] body { line-height: 1.75; }
html[lang="en"] .intro { line-height: 1.8; }
html[lang="en"] .chapter-heading h2 { font-family: var(--serif); font-size: 29px; font-weight: 400; letter-spacing: -.035em; }
html[lang="en"] .article-header h1 { letter-spacing: -.025em; }
html[lang="en"] .registration-steps li p, html[lang="en"] .step p { line-height: 1.8; }

@media (max-width: 1230px) {
  .site-header, .page-shell, .site-footer { max-width: none; margin-left: 5%; margin-right: 5%; }
  .page-shell { grid-template-columns: 150px minmax(0,1fr); column-gap: 6%; }
  .article-header h1 { font-size: 52px; }
}
@media (max-width: 960px) {
  .page-shell { grid-template-columns: 125px minmax(0,1fr); column-gap: 35px; }
  .page-index nav { gap: 13px; }
  .page-index nav a { font-size: 11px; }
  .article-header h1 { font-size: 47px; }
  .planner-section { grid-template-columns: 1fr 235px; gap: 20px; }
  .overview-item { grid-template-columns: 35px minmax(0,1fr) auto; gap: 9px; }
  .overview-item h3 { font-size: 13px; }
  .overview-item p { font-size: 12px; }
  .resource-action { font-size: 11px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 18px; }
  .site-header, .page-shell, .site-footer { margin-left: 6%; margin-right: 6%; }
  .site-header { padding-top: 18px; padding-bottom: 14px; gap: 14px; align-items: baseline; }
  .brand { font-size: 21px; }
  .edition { font-size: 10px; }
  .language-switch { gap: 11px; }
  .language-switch button { font-size: 12px; min-height: 32px; }
  .page-shell { display: block; }
  .page-index { display: none; }
  .article-header { padding: 29px 0 28px; }
  .school-name { font-size: 11px; margin-bottom: 19px; }
  .article-header h1 { font-size: clamp(37px, 7.7vw, 52px); letter-spacing: -.025em; line-height: 1.08; margin-bottom: 20px; }
  .subtitle { font-size: 17px; line-height: 1.8; margin-bottom: 12px; }
  .byline { gap: 3px 12px; font-size: 10px; margin-bottom: 21px; }
  .byline > span + span::before { margin-right: 12px; }
  .intro { font-size: 15px; line-height: 1.95; }
  .quick-links { gap: 9px 20px; margin-top: 19px; font-size: 12px; }
  .contents-mobile { display: block; border-top: 1px solid var(--line); padding: 16px 0 21px; margin-bottom: 6px; }
  .contents-mobile summary { color: var(--muted); font-size: 12px; cursor: pointer; }
  .contents-mobile nav { display: flex; flex-wrap: wrap; gap: 7px 20px; padding-top: 12px; }
  .contents-mobile a { color: var(--muted); font-size: 12px; text-decoration: none; }
  .chapter { padding-top: 24px; margin-bottom: 33px; }
  .chapter-heading { gap: 12px; margin-bottom: 16px; }
  .chapter-heading h2 { font-size: 22px; }
  html[lang="en"] .chapter-heading h2 { font-size: 26px; }
  .chapter-number { font-size: 10px; }
  .chapter > p, .short-answer > p { font-size: 15px; }
  .short-answer li { font-size: 14px; margin-bottom: 8px; }
  .short-answer ul { padding-left: 19px; }
  .inline-note { font-size: 12px; }
  .registration-lead { font-size: 15px; }
  .registration-link { padding-left: 13px; margin: 20px 0; }
  .registration-link > a { font-size: 14px; }
  .registration-link p { font-size: 12px; }
  .registration-steps { margin: 21px 0; }
  .registration-steps ol { padding-left: 20px; }
  .registration-steps li { padding-left: 6px; margin-bottom: 17px; font-size: 14px; }
  .registration-steps li > p { font-size: 14px; }
  .registration-note { font-size: 12px; }
  .registration-facts dl { grid-template-columns: 100px minmax(0,1fr); }
  .registration-facts dt, .registration-facts dd { font-size: 13px; }
  .route-tabs { gap: 22px; margin: 23px 0; }
  .route-tabs button { font-size: 13px; min-height: 40px; }
  .route-tabs button span { font-size: 10px; margin-left: 3px; }
  .route-tag { font-size: 10px; }
  .route-intro h3 { font-size: 18px; }
  .route-intro p { font-size: 14px; }
  .route-intro { margin-bottom: 21px; }
  .step { gap: 10px; grid-template-columns: 23px minmax(0,1fr); padding: 17px 0; }
  .step-number { font-size: 10px; }
  .step h4 { font-size: 15px; margin-bottom: 6px; }
  .step p { font-size: 14px; }
  .step-source { font-size: 10px; }
  .route-aside { margin-left: 33px; margin-top: 18px; padding-left: 13px; }
  .route-aside p, .route-aside li { font-size: 12px; }
  .route-aside h4 { font-size: 15px; }
  .button { font-size: 13px; }
  .notice { font-size: 12px; padding-top: 13px; gap: 6px; }
  .overview-item { grid-template-columns: 35px minmax(0,1fr); gap: 2px 8px; padding: 13px 0; }
  .overview-number { grid-column: 1; grid-row: 1 / span 2; padding-top: 2px; }
  .overview-item h3 { grid-column: 2; font-size: 14px; }
  .overview-item p { grid-column: 2; font-size: 12px; color: var(--muted); }
  .overview-note { font-size: 12px; margin-top: 16px; }
  .planner-section { grid-template-columns: 1fr; gap: 16px; margin-top: 23px; padding-top: 20px; }
  .planner-copy h3 { font-size: 16px; }
  .planner-copy p { font-size: 12px; }
  .planner-box { max-width: 350px; }
  .planner-box label { font-size: 12px; }
  .planner-input-row input { font-size: 19px; width: 128px; }
  .planner-result { font-size: 12px; }
  .planner-result > strong { font-size: 25px; }
  .planner-hint { font-size: 11px; }
  .checklist-items label { font-size: 13px; padding: 12px 0; gap: 10px; }
  .checklist-items input { width: 15px; height: 15px; margin-top: 5px; }
  .check-count, .text-button { font-size: 11px; }
  .resource-item { align-items: flex-start; flex-wrap: wrap; gap: 4px 11px; padding: 14px 0; }
  .resource-icon { min-width: 23px; padding-top: 4px; font-size: 9px; }
  .resource-info { min-width: calc(100% - 40px); }
  .resource-info h3 { font-size: 14px; margin-bottom: 4px; }
  .resource-info p { font-size: 11px; }
  .resource-action { margin-left: 34px; font-size: 12px; margin-top: 3px; }
  .source-details { margin-top: 20px; }
  .source-details summary { font-size: 12px; }
  .source-details dt, .source-details dd { font-size: 11px; }
  .source-note { font-size: 10px; }
  .faq-list summary { padding: 13px 24px 13px 0; font-size: 13px; }
  .faq-list summary::after { top: 11px; font-size: 16px; }
  .faq-list details p { padding-bottom: 17px; font-size: 13px; }
  .series-entry { padding: 16px 0 18px; }
  .series-entry h3 { font-size: 22px; max-width: 480px; }
  .series-entry p, .series-entry small { font-size: 11px; }
  .site-footer { padding-top: 18px; padding-bottom: 25px; }
  .footer-brand { font-size: 15px; }
  .footer-brand > span { display: block; margin: 5px 0 0; font-size: 10px; }
  .footer-note { font-size: 10px; }
  .back-top { font-size: 10px; }
  .footer-bottom { display: block; font-size: 10px; margin-top: 12px; }
  .footer-bottom > p + p { margin-top: 6px; }
}
@media (max-width: 400px) {
  .site-header, .page-shell, .site-footer { margin-left: 6%; margin-right: 6%; }
  .edition { display: none; }
  .article-header h1 { font-size: 38px; }
  .route-tabs { gap: 18px; }
  .route-tabs button { font-size: 12px; }
  .registration-facts dl { grid-template-columns: 88px minmax(0,1fr); }
  .quick-links { gap: 8px 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}
@media print {
  body { background: white; color: black; font-size: 11pt; }
  .site-header, .page-index, .contents-mobile, .quick-links, .planner-section, .back-top, .language-switch { display: none; }
  .page-shell { display: block; margin: 0; max-width: none; }
  .article-header { padding-top: 0; }
  .article-header h1 { font-size: 31pt; max-width: none; }
  .chapter { margin-bottom: 20pt; }
  .chapter-heading { break-after: avoid; }
  .step { break-inside: avoid; }
  a { color: black; }
  .site-footer { margin: 0; }
}

/* Article structure and registration controls. */
.brand { display: inline-flex; align-items: baseline; gap: 20px; }
.brand .edition { font-family: var(--mono); font-weight: 400; letter-spacing: 0; }
.language-switch > span { color: #b5aaa1; font-size: 11px; }
.index-series { display: inline-block; margin-top: 24px; color: var(--muted); font-size: 11px; text-decoration: none; line-height: 1.8; }
.index-series:hover { color: var(--accent); text-decoration: underline; }
.chapter-heading h2 { min-width: 0; text-wrap: pretty; line-break: strict; }
.registration > h3 { font-size: 17px; font-weight: 600; margin: 24px 0 0; }
.team-block { margin: 26px 0 24px; }
.team-block label { display: block; color: var(--muted); font-size: 12px; line-height: 1.9; margin-bottom: 8px; }
.team-copy-row { display: flex; align-items: stretch; gap: 14px; max-width: 570px; }
.team-copy-row input { width: 0; flex: 1; min-width: 0; padding: 10px 12px; background: #f0ece7; border: 1px solid #d7cdc5; border-radius: 0; color: var(--ink); font-family: var(--sans); font-size: 15px; line-height: 1.8; }
.team-copy-row button { flex-shrink: 0; padding: 5px 0; background: transparent; border: 0; border-bottom: 1px solid var(--accent); border-radius: 0; color: var(--accent); font-size: 12px; line-height: 1.8; }
.team-copy-row button:hover { border-bottom-width: 2px; }
.copy-status { display: block; min-height: 18px; margin-top: 5px; font-size: 11px; line-height: 1.8; color: var(--accent); }
.copy-status:empty { display: none; }
.overview-details { margin: 24px 0 0; }
.overview-details > summary, .desktop-registration > summary, .planner-details > summary { color: #76665d; font-size: 13px; cursor: pointer; line-height: 1.9; }
.overview-details[open] > summary, .desktop-registration[open] > summary, .planner-details[open] > summary { color: var(--ink); }
.requirements-table { width: 100%; margin: 20px 0 0; border-collapse: collapse; font-size: 13px; line-height: 1.8; }
.requirements-table th, .requirements-table td { padding: 10px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: baseline; }
.requirements-table th { color: var(--muted); font-size: 11px; font-weight: 400; }
.requirements-table th:last-child, .requirements-table td:last-child { padding-left: 20px; text-align: right; }
.desktop-registration { margin: 13px 0 23px; }
.desktop-registration .registration-steps { margin-bottom: 0; }
.source-link > small { display: block; color: #94877e; font-size: 10px; line-height: 1.9; margin-top: 5px; }
.contact-line { font-size: 12px; color: var(--muted); margin-top: 16px; overflow-wrap: anywhere; }
p.route-intro { font-size: 15px; line-height: 1.9; color: #55504c; margin-bottom: 25px; }
.step h3 { font-size: 16px; margin: 0 0 7px; font-weight: 600; letter-spacing: -.015em; line-height: 1.6; }
.route-aside h3 { font-size: 16px; font-weight: 500; line-height: 1.8; margin: 0 0 10px; }
p.notice { display: block; }
.checklist-title { margin: 29px 0 7px; font-size: 17px; font-weight: 600; }
.checklist-note { color: var(--muted); font-size: 12px; line-height: 1.9; margin: 0; }
.checklist-items { margin-top: 16px; }
.checklist-controls { margin-top: 13px; display: flex; align-items: baseline; gap: 17px; }
.checklist-controls .text-button { margin-left: 0; }
.planner-details { margin-top: 27px; }
.planner-section { margin-top: 16px; padding-top: 17px; }
.planner-result > strong { display: inline; }
.planner-result > strong + p { display: block; margin-top: 5px; }
.source-details { margin-top: 23px; }
.source-details > p { color: var(--muted); font-size: 11px; line-height: 1.9; margin-top: 21px; }
.series-section > h2 { font-size: 21px; letter-spacing: -.035em; margin: 0; }
.series-entry { display: grid; grid-template-columns: 27px minmax(0,1fr); gap: 13px; }
.series-number { padding-top: 12px; }
.series-entry h3 { margin-top: 5px; font-size: 23px; }
.series-status { display: inline-block; margin: 0 0 4px; font-size: 10px; }
.site-footer { max-width: none; margin: 5px 0 0; }
.footer-brand { font-family: var(--sans); font-size: 11px; font-weight: 400; letter-spacing: 0; margin: 0; }
.footer-note { margin-top: 8px; }

@media (max-width: 760px) {
  .brand { gap: 15px; }
  .brand .edition { font-size: 9px; }
  .contents-mobile { display: flex; flex-wrap: wrap; gap: 8px 20px; padding-top: 15px; padding-bottom: 19px; }
  .contents-mobile > span { display: block; width: 100%; color: #998c83; font-size: 11px; margin-bottom: 2px; }
  .contents-mobile > a { color: #6f6259; font-size: 12px; line-height: 1.8; }
  .registration > h3 { font-size: 16px; margin-top: 20px; }
  .team-copy-row { display: grid; grid-template-columns: 1fr; gap: 9px; }
  .team-copy-row input { width: 100%; font-size: 14px; padding: 10px; }
  .team-copy-row button { justify-self: start; padding: 1px 0; font-size: 12px; }
  .team-block { margin: 23px 0; }
  .team-block label { font-size: 11px; }
  .copy-status { margin-top: 6px; font-size: 10px; }
  .requirements-table { font-size: 12px; }
  .requirements-table th, .requirements-table td { padding-top: 8px; padding-bottom: 8px; }
  .requirements-table th:last-child, .requirements-table td:last-child { padding-left: 13px; }
  .overview-details > summary, .desktop-registration > summary, .planner-details > summary { font-size: 12px; }
  .source-link > small { font-size: 10px; }
  .contact-line { font-size: 11px; }
  p.route-intro { font-size: 14px; margin-bottom: 21px; }
  .step h3 { font-size: 15px; margin-bottom: 6px; }
  .route-aside h3 { font-size: 15px; }
  .checklist-title { font-size: 16px; margin-top: 24px; }
  .checklist-note { font-size: 11px; }
  .checklist-controls { gap: 14px; }
  .planner-details { margin-top: 24px; }
  .series-section > h2 { font-size: 20px; }
  .series-entry { grid-template-columns: 22px minmax(0,1fr); gap: 10px; }
  .series-entry h3 { font-size: 21px; }
  .series-number { padding-top: 9px; }
  .footer-brand { font-size: 10px; max-width: 70%; line-height: 1.8; }
  .footer-top { align-items: baseline; }
  .site-footer { margin-left: 0; margin-right: 0; }
}
@media (max-width: 400px) {
  .team-copy-row input { font-size: 13px; padding-left: 9px; padding-right: 9px; }
  .chapter-heading h2 { font-size: 21px; }
  html[lang="en"] .chapter-heading h2 { font-size: 25px; }
}