:root {
  color-scheme: light;
  --ink: #333333;
  --strong: #111111;
  --muted: #777777;
  --paper: #ffffff;
  --quiet: #f4f4f4;
  --footer: #f4f4f4;
  --rule: #dddddd;
  --rule-light: #ebebeb;
  --accent: #333333;
  --caution: #8a6526;
  --danger: #a14a38;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 14px;
  line-height: 1.75;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); }
a { color: inherit; text-underline-offset: 4px; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--strong); overflow-wrap: anywhere; text-wrap: wrap; }
h1 { font-size: 1.714rem; line-height: 1.45; font-weight: 500; }
h2 { font-size: 1.429rem; line-height: 1.55; font-weight: 600; }
h3 { font-size: 1.143rem; line-height: 1.7; font-weight: 600; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
.wrap { width: 100%; max-width: 1064px; margin-inline: auto; padding-inline: 32px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none !important; }
.skip { position: absolute; left: 16px; top: -100px; padding: 10px 14px; background: var(--paper); z-index: 100; }
.skip:focus { top: 10px; }

.site-header { position: relative; z-index: 10; background: var(--paper); }
.masthead { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding-block: 26px 18px; }
.masthead-center { grid-column: 2; display: flex; flex-direction: column; align-items: center; }
.brand { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; flex: 0 0 auto; min-width: 142px; color: var(--strong); text-decoration: none; }
.brand-name { font-size: 1.85rem; line-height: 1; font-weight: 600; letter-spacing: .22em; text-indent: .22em; }
.brand-roman { margin-top: 6px; font: 500 .5rem/1 system-ui, sans-serif; letter-spacing: .32em; text-indent: .32em; color: var(--muted); }
.brand-promise { margin: 12px 0 0; color: #000; font-size: 12px; letter-spacing: .08em; }
.header-links { grid-column: 3; justify-self: end; display: flex; align-items: center; gap: 22px; }
.header-links a { display: inline-flex; align-items: center; min-height: 44px; font-size: .714rem; text-decoration: none; white-space: nowrap; }
.nav-bar { background: var(--paper); border-bottom: 1px solid var(--rule-light); }
.nav { display: flex; align-items: center; justify-content: center; min-height: 46px; gap: 0; }
.nav a { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 24px; color: #000; font-size: 13px; text-decoration: none; white-space: nowrap; }
/* One thick bar marks the current item and moves to the hovered item; no text underline. */
.nav a::before { content: ""; position: absolute; left: 24px; right: 24px; bottom: 0; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform 160ms ease; }
.nav a[aria-current=page]::before { transform: scaleX(1); }

.home { padding-top: 44px; padding-bottom: 88px; }
.home-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.column-heading { display: flex; align-items: baseline; gap: 12px; margin: 0 0 18px; }
.column-heading a { color: #000; font-size: 20px; font-weight: 700; letter-spacing: 2px; text-decoration: none; }
.column-heading > span:not(.category-label) { color: var(--muted); font-size: 12px; font-weight: 400; }
.column-lead { display: block; text-decoration: none; }
.column-lead .art { aspect-ratio: 3 / 2; }
.column-lead h3 { margin: 14px 0 10px; color: #000; font-size: 18px; line-height: 1.6; font-weight: 400; }
.column-list { margin: 22px 0 0; padding: 0; list-style: none; }
.column-list li + li { margin-top: 16px; }
.column-list a, .sidebar-list a { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 14px; align-items: start; color: #000; font-size: 15px; line-height: 1.6; text-decoration: none; }
.column-thumb .art, .sidebar-thumb .art { aspect-ratio: 1; }
.author-row { display: flex; align-items: center; gap: 8px; margin: 0; color: var(--ink); font-size: 12px; }
.author-row .avatar { width: 32px; height: 32px; border-radius: 50%; flex: 0 0 auto; }
.author-row time { margin-left: auto; color: #999; }
.art { overflow: hidden; background: var(--quiet); }
.collection .art { aspect-ratio: 3 / 2; }
.home .art img, .collection .art img, .sidebar .art img { object-position: 50% 100%; }
.home-section { margin-top: 56px; scroll-margin-top: 24px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.section-heading h2 { margin: 0; font-size: 18px; line-height: 1.5; font-weight: 700; letter-spacing: .04em; }
.section-heading > span { color: var(--muted); font-size: 12px; }
.tool-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.tool-card { display: grid; grid-template-rows: auto auto 1fr auto; gap: 8px; min-height: 216px; padding: 24px; background: var(--quiet); color: var(--strong); text-decoration: none; }
.tool-card svg { margin-bottom: 6px; }
.tool-card-title { font-size: 17px; line-height: 1.5; font-weight: 700; }
.tool-card-summary { color: var(--ink); font-size: 14px; line-height: 1.75; }
.tool-card-go { justify-self: end; font-size: 13px; font-weight: 600; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 24px; }
.card > a { display: block; text-decoration: none; }
.card-copy { padding-top: 12px; }
.card h2, .card h3 { margin-bottom: 6px; font-size: 15px; line-height: 1.6; font-weight: 700; color: var(--ink); }
.eyebrow { display: flex; flex-wrap: wrap; gap: 2px 12px; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
.category-label, .draft { white-space: nowrap; }
.category-label { display: inline-block; padding: 3px 8px; background: var(--strong); color: var(--paper); font-size: 11px; line-height: 1.4; letter-spacing: .1em; }
.card-copy > p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.theme-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.theme-link { display: grid; grid-template-columns: 30px minmax(0, 1fr) 20px; align-items: center; gap: 12px; min-height: 64px; padding: 0 16px; background: var(--quiet); font-size: 14px; font-weight: 600; text-decoration: none; }
.theme-link svg { width: 25px; height: 31px; }
.theme-link > span:last-child { justify-self: end; color: var(--muted); font-size: 1.2rem; }
.theme-link[aria-current=page] { color: var(--strong); }
.home-about { margin-top: 56px; padding: 28px; background: var(--quiet); }
.home-about-kicker { margin-bottom: 8px; color: var(--muted); font-size: 12px; letter-spacing: .1em; }
.home-about > p:not(.home-about-kicker) { margin-bottom: 4px; font-size: 14px; line-height: 1.8; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: 28px; font-size: .786rem; }

.footer { padding-block: 54px 24px; background: var(--footer); color: var(--muted); }
.footer-top { display: grid; grid-template-columns: 1fr 2fr; gap: 70px; }
.footer .brand { align-items: flex-start; min-width: 0; }
.footer .brand-name { color: var(--ink); font-size: 1.65rem; }
.footer-top > div > p { margin-top: 22px; font-size: .714rem; line-height: 1.9; }
.footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.footer nav p { margin-bottom: 10px; color: var(--ink); font-size: .786rem; font-weight: 600; }
.footer nav a, .privacy-settings { display: flex; align-items: center; min-height: 38px; font-size: .714rem; text-decoration: none; }
.privacy-settings { border: 0; padding: 0; background: transparent; text-decoration: underline; }
.footer small { display: block; margin-top: 48px; text-align: center; font-size: .643rem; }

.collection { min-width: 0; min-height: 60vh; padding-top: 28px; padding-bottom: 90px; }
.collection > .column-heading { margin-bottom: 10px; }
.collection > .back { display: inline-flex; align-items: center; min-height: 40px; margin-bottom: 18px; color: var(--muted); font-size: .714rem; }
.collection > h1 { margin-bottom: 10px; font-size: 1.714rem; }
.collection > .intro { max-width: 680px; margin-bottom: 42px; }
.theme-group + .theme-group { margin-top: 56px; }
.theme-group > h2 { margin-bottom: 20px; font-size: 1.143rem; }
.theme-group > h2 a, .sub-group > h2 a, .sub-group > h3 a { text-decoration: none; }
.sub-index { margin-bottom: 24px; color: var(--muted); font-size: .786rem; line-height: 2; }
.sub-index .soon { color: #999; }
.sub-group + .sub-group { margin-top: 36px; }
.sub-group > h2, .sub-group > h3 { margin-bottom: 16px; font-size: 1rem; }

.tool-shell { max-width: 744px; }
.page-layout { display: grid; grid-template-columns: minmax(0, 670px) 300px; justify-content: space-between; gap: 30px; }
.article-shell { min-width: 0; }
.sidebar { padding-top: 60px; padding-bottom: 60px; }
.sidebar section + section { margin-top: 44px; }
.sidebar-heading { margin: 0 0 18px; padding-bottom: 8px; border-bottom: 1px solid #000; color: #000; font-size: 11px; font-weight: 700; letter-spacing: .15em; }
.sidebar-list, .sidebar-categories { margin: 0; padding: 0; list-style: none; }
.sidebar-list li + li { margin-top: 16px; }
.sidebar-list a { grid-template-columns: 80px minmax(0, 1fr); font-size: 13px; }
.sidebar-list a > span:last-child { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-categories a { display: flex; align-items: baseline; gap: 12px; min-height: 44px; color: #000; font-size: 13px; text-decoration: none; }
.sidebar-categories a > span { min-width: 92px; font-weight: 700; letter-spacing: .1em; }
.sidebar-groups, .sidebar-subs { margin: 0; padding: 0; list-style: none; }
.sidebar-groups { margin: -6px 0 14px 104px; }
.sidebar-groups a { min-height: 30px; color: #333; font-size: 12px; font-weight: 400; }
.sidebar-subs { margin: 0 0 6px 12px; }
.sidebar-subs a { min-height: 26px; color: #777; font-size: 12px; }
.breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; min-height: 52px; margin: 0; padding-block: 8px; color: var(--muted); font-size: .714rem; }
.breadcrumbs a { display: inline-flex; align-items: center; min-height: 36px; }
.article-header { padding: 20px 0 0; }
.article-label { margin: 0 0 14px; }
.article-header > .art { aspect-ratio: 1536 / 643; }
.article-header > .art img { object-position: 50% 100%; }
.article-heading { min-width: 0; }
.article-heading { padding: 24px 40px 0; }
.article-heading h1 { margin-bottom: 10px; color: #000; font-size: 26px; line-height: 1.75; font-weight: 400; }
.article-heading .author-row { margin-top: 16px; }
.article-heading .article-summary { margin: 18px 0 0; }
.article-summary { margin-bottom: 12px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.article-meta { display: flex; flex-wrap: wrap; gap: 2px 14px; margin: 0; color: #999; font-size: 13px; }
.article-body { min-width: 0; padding: 36px 0 90px; }
.article-body > .intro { margin-bottom: 16px; color: var(--ink); font-size: 1rem; line-height: 2; }
.article-body > section { margin-top: 52px; scroll-margin-top: 24px; }
.article-body > section h2, .info h2 { margin: 0 0 20px; padding: 0; border: 0; font-size: 1.571rem; line-height: 1.5; font-weight: 700; }
.article-body > section p, .info > p { font-size: 1rem; line-height: 2; }
.article-subsection { margin-top: 34px; }
.article-subsection h3 { margin-bottom: 18px; font-size: 1.214rem; }
.notice { margin-top: 26px; padding: 18px 20px; background: var(--quiet); font-size: .786rem; }
.notice p { margin: 7px 0 0; }
.toc { margin-block: 40px 48px; padding: 0; }
.toc h2 { margin: 0 0 12px; font-size: 1rem; }
.toc ol { margin: 0; padding-left: 22px; font-size: .857rem; }
.toc li + li { margin-top: 6px; }
.toc li a { display: inline-flex; align-items: center; min-height: 34px; }
.article-photo { margin: 30px 0; }
.article-photo img { height: auto; }
.article-photo figcaption { margin-top: 9px; color: var(--muted); font-size: .786rem; line-height: 1.75; }
.article-highlight { margin: 28px 0; padding: 20px 22px; background: var(--quiet); }
.article-highlight-label { margin-bottom: 7px; color: var(--muted); font-size: .786rem; font-weight: 600; letter-spacing: .04em; }
.article-highlight > p:last-child { margin-bottom: 0; font-size: .929rem; line-height: 1.9; }
.article-flow { margin: 30px 0; padding: 0; list-style: none; counter-reset: article-flow; }
.article-flow li { display: grid; grid-template-columns: 48px minmax(0, 1fr); column-gap: 16px; min-width: 0; padding: 14px 0; counter-increment: article-flow; }
.article-flow li::before { grid-row: 1 / span 2; content: counter(article-flow, decimal-leading-zero); padding-top: 2px; color: var(--muted); font-size: .786rem; font-weight: 600; letter-spacing: .08em; }
.article-flow li > span { grid-column: 2; display: block; margin-bottom: 4px; font-size: .929rem; font-weight: 600; }
.article-flow li > p { grid-column: 2; margin: 0; color: var(--muted); font-size: .857rem; line-height: 1.8; }
.comparison-table { width: 100%; table-layout: fixed; border-collapse: collapse; margin-block: 26px; font-size: .786rem; line-height: 1.75; }
.comparison-table caption { margin-bottom: 10px; text-align: left; font-weight: 600; }
.comparison-table th, .comparison-table td { padding: 12px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; overflow-wrap: anywhere; }
.comparison-table th { background: var(--quiet); font-weight: 600; }
.recommendations { display: grid; gap: 24px; margin-block: 28px; }
.recommendation-card { background: none; }
.recommendation-card > a { display: block; padding: 4px 0; text-decoration: none; }
.recommendation-card.has-image > a { display: grid; grid-template-columns: 106px minmax(0, 1fr); gap: 18px; align-items: center; }
.recommendation-card img { width: 106px; height: 132px; object-fit: contain; background: var(--quiet); }
.recommendation-copy > span { display: block; }
.recommendation-publisher, .recommendation-description { color: var(--muted); font-size: .786rem; }
.recommendation-title { margin-block: 3px 7px; font-size: .929rem; font-weight: 600; }
.recommendation-price { margin-top: 10px; font-size: .857rem; }
.recommendation-price small { display: block; color: var(--muted); font-size: .643rem; }
.recommendation-link { margin-top: 10px; font-size: .786rem; text-decoration: underline; }
.article-body li { padding-left: 3px; }
.article-note { margin-top: 52px; color: var(--muted); font-size: .714rem; line-height: 1.8; }
.related-articles { margin-top: 58px; }
.article-tools { margin-top: 58px; }
.article-tools h2 { margin-bottom: 16px; font-size: 1rem; }
.related-articles h2 { margin-bottom: 10px; font-size: 1rem; }
.related-articles ul { margin: 0; padding-left: 20px; }
.related-articles a { display: inline-flex; align-items: center; min-height: 40px; font-size: .857rem; }
.article-end { margin-top: 52px; padding: 24px; background: var(--quiet); }
.article-end p { margin-bottom: 5px; font-size: .786rem; }

.info { max-width: 744px; min-height: 60vh; margin-inline: auto; padding: 54px 32px 90px; }
.info > h1 { margin-bottom: 30px; }
.info h2 { margin-top: 46px; }
.info > .notice { margin-block: 30px; }
.contact-form { display: grid; gap: 22px; margin-block: 34px; padding: 26px; background: var(--quiet); }
.contact-field { display: grid; gap: 7px; }
.contact-field label { font-size: .857rem; font-weight: 600; }
.contact-field label span { margin-left: 7px; color: var(--muted); font-size: .643rem; font-weight: 400; }
.contact-field input, .contact-field select, .contact-field textarea { width: 100%; border: 1px solid #cccccc; border-radius: 0; padding: 11px; background: var(--paper); }
.contact-field input, .contact-field select { min-height: 46px; }
.contact-field textarea { min-height: 210px; resize: vertical; line-height: 1.7; }
.contact-field small { color: var(--muted); font-size: .643rem; }
.contact-consent { display: flex; align-items: flex-start; gap: 9px; font-size: .786rem; line-height: 1.7; }
.contact-consent input { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 3px; }
.contact-submit { min-height: 50px; border: 1px solid var(--accent); padding: 11px 18px; background: var(--accent); color: var(--paper); }
.contact-submit:disabled { opacity: .55; }
.contact-trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-status { margin-block: 22px; padding: 15px; background: var(--quiet); color: var(--danger); font-size: .857rem; }
.contact-email { margin-top: 26px; font-size: .786rem; }
.cf-turnstile { min-height: 65px; }
@media (max-width: 900px) {
  .wrap { padding-inline: 24px; }
  .page-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .sidebar { padding-top: 0; }
  .header-links { gap: 12px; }
  .nav a { padding-inline: 18px; }
  .nav a::before { left: 18px; right: 18px; }
}

@media (max-width: 700px) {
  :root { font-size: 14px; }
  .wrap { padding-inline: 16px; }
  .masthead { grid-template-columns: 1fr; padding-block: 18px 12px; }
  .masthead-center { grid-column: 1; }
  .brand-name { font-size: 1.55rem; }
  .brand-promise { margin-top: 8px; font-size: 11px; text-align: center; }
  .header-links { grid-column: 1; justify-self: center; }
  .header-links a { font-size: .643rem; }
  .header-links a:first-child { display: none; }
  .nav { display: grid; grid-template-columns: 1fr 1fr; min-height: auto; padding: 0; }
  .nav a { min-height: 44px; padding: 0 8px; white-space: normal; text-align: center; }
  .nav a::before { left: 16px; right: 16px; }
  .home-columns { grid-template-columns: 1fr; gap: 48px; }
  .column-list a { grid-template-columns: 80px minmax(0, 1fr); font-size: 14px; }
  .home { padding-top: 20px; padding-bottom: 64px; }
  .home-section, .home-about { margin-top: 44px; }
  .section-heading { margin-bottom: 16px; }
  .section-heading h2 { font-size: 17px; }
  .tool-cards { grid-template-columns: 1fr; gap: 16px; }
  .tool-card { min-height: 0; padding: 20px; }
  .cards { gap: 28px 16px; }
  .card-copy { padding-top: 10px; }
  .card h2, .card h3 { font-size: 14px; line-height: 1.6; }
  .card-copy > p:not(.eyebrow) { display: none; }
  .eyebrow { gap: 0 8px; font-size: 11px; }
  .theme-list { grid-template-columns: 1fr; gap: 8px; }
  .theme-link { padding: 0 14px; min-height: 54px; }
  .home-about { padding: 22px 18px; }
  .footer { padding-top: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .footer nav { gap: 22px; }
  .breadcrumbs { min-height: 48px; }
  .article-header { padding-top: 12px; }
  .article-header > .art { margin: 0 -16px; }
  .article-heading { padding: 20px 0 0; }
  .article-shell .article-body { padding-inline: 0; }
  .article-summary { font-size: 14px; }
  .article-meta { font-size: 11px; }
  .article-body { padding: 28px 0 64px; }
  .article-body > .intro, .article-body > section p { font-size: .929rem; }
  .article-body > section { margin-top: 44px; }
  .article-body > section h2, .info h2 { font-size: 1.286rem; }
  .article-subsection h3 { font-size: 1.071rem; }
  .article-highlight { padding: 18px; }
  .article-flow li { grid-template-columns: 38px minmax(0, 1fr); column-gap: 12px; }
  .info { padding: 42px 16px 70px; }
  .contact-form { padding: 20px 16px; }
  .recommendation-card.has-image > a { grid-template-columns: 82px minmax(0, 1fr); gap: 13px; }
  .recommendation-card img { width: 82px; height: 108px; }
}

@media (hover: hover) {
  a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
  .nav a:hover { text-decoration: none; }
  .nav:hover a[aria-current=page]:not(:hover)::before { transform: scaleX(0); }
  .nav a:hover::before { transform: scaleX(1); }
  .brand:hover, .column-lead:hover, .card > a:hover, .theme-link:hover, .tool-card:hover { text-decoration: none; }
  .column-lead:hover h3, .column-list a:hover > span:last-child, .sidebar-list a:hover > span:last-child, .card > a:hover h2, .card > a:hover h3, .theme-link:hover > span:nth-child(2), .tool-card:hover .tool-card-title { text-decoration: underline; text-decoration-thickness: 1px; }
  .column-lead img, .card img { transition: opacity 160ms ease; }
  .column-lead:hover img, .card > a:hover img { opacity: .9; }
}

/* Long-form articles keep their own reading scale; listing pages stay compact. */
html:has(.reading-overview) { scroll-behavior: auto; }
.reading-overview { margin: 0 0 32px; padding: 26px 28px; background: var(--quiet); }
.article-body .reading-label { margin: 0 0 18px; font-size: 15px; font-weight: 700; line-height: 1.6; }
.reading-overview ol { list-style: none; margin: 0; padding: 0; counter-reset: reading-point; }
.reading-overview li { counter-increment: reading-point; display: flex; align-items: baseline; gap: 14px; padding: 10px 0; }
.reading-overview li::before { content: "0" counter(reading-point); color: var(--muted); font-size: 13px; font-weight: 600; }
.reading-overview a { display: flex; flex: 1; justify-content: space-between; gap: 12px; text-decoration: none; font-size: 16px; font-weight: 600; line-height: 1.7; }
.reading-overview a:hover { text-decoration: underline; }
.photo-jump { margin: 0 0 44px; }
.photo-jump-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.photo-jump-grid a { position: relative; display: block; text-decoration: none; }
.photo-jump-grid img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; margin-bottom: 12px; }
.photo-jump-grid a > span { display: block; font-size: 15px; line-height: 1.7; font-weight: 600; }
.photo-jump-grid a:hover { text-decoration: underline; }
/* Pale yellow marker under the sentence the reader should not miss (the only warm color; use sparingly). */
.article-body mark.marker, .article-body strong.reading-point, .article-body strong.reading-caution { padding: 0 2px; background: linear-gradient(transparent 40%, #fff0a8 40%); color: inherit; font-weight: 700; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.article-body .article-checklist { margin: 28px 0; padding: 0 24px; background: var(--quiet); }
.article-body .article-checklist li { display: block; padding: 24px 0; }
.article-checklist li::before { content: none; }
.article-checklist label { display: flex; align-items: baseline; gap: 12px; min-height: 44px; font-weight: 600; cursor: pointer; }
.article-checklist input { flex: 0 0 auto; width: 22px; height: 22px; margin: 0; accent-color: var(--accent); cursor: pointer; transform: translateY(4px); }
.article-checklist input:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.article-checklist li:has(input:checked) { color: var(--muted); }
.article-body .article-checklist li > p { padding-left: 34px; font-size: 15px; }
.article-subsection[id] { scroll-margin-top: 24px; }
.article-shell:has(.reading-overview) .article-summary { display: none; }

.article-body { padding: 40px 0 90px; font-size: 17px; line-height: 2; }
.article-body > .intro, .article-body > section p { font-size: inherit; line-height: 2; margin-bottom: 1.6em; }
.article-shell .article-body { padding-inline: 40px; color: #000; font-size: 16px; line-height: 1.75; letter-spacing: .03em; }
.article-shell .article-body > .intro, .article-shell .article-body > section p { line-height: 1.75; margin-bottom: 30px; }
.article-body > section { margin-top: 56px; }
.article-body > section h2 { font-size: 22px; line-height: 1.6; margin-bottom: 28px; }
.article-subsection { margin-top: 40px; }
.article-subsection h3 { font-size: 20px; line-height: 1.7; padding-bottom: 0; border: 0; margin-bottom: 20px; }
.article-photo { margin: 40px 0; }
.article-photo figcaption { font-size: 13px; }
.article-body .article-flow li > span, .article-body .article-flow li > p { font-size: inherit; color: var(--ink); }
.article-body .article-flow li > p { margin: 0; }
.article-body > .toc ol { font-size: 14px; }

@media (max-width: 700px) {
  .reading-overview { padding: 20px; }
  .reading-overview a { font-size: 15px; }
  .photo-jump-grid { gap: 12px; }
  .photo-jump-grid a > span { font-size: 13px; }
  .article-body .article-checklist { padding-inline: 16px; }
  .article-heading h1 { font-size: 22px; }
  .article-body { padding-block: 28px 64px; font-size: 16px; }
  .article-body > section { margin-top: 52px; }
  .article-body > section h2 { font-size: 22px; margin-bottom: 24px; }
  .article-subsection { margin-top: 36px; }
  .article-subsection h3 { font-size: 19px; }
  .article-photo { margin-block: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav a::before { transition: none; }
  .column-lead img, .card img { transition: none; }
}

/* Tool pages: furniture carry-in check */
.tool-body { max-width: 680px; margin-inline: auto; padding-top: 12px; }
.tool-header { padding: 28px; background: var(--quiet); color: var(--strong); }
.tool-header svg { display: block; margin-bottom: 14px; }
.tool-header .eyebrow { color: var(--muted); }
.tool-header h1 { margin-bottom: 12px; font-size: 24px; line-height: 1.6; font-weight: 700; }
.tool-body .tool-lead { margin-bottom: 14px; color: var(--ink); font-size: 15px; line-height: 1.85; }
.tool-header .article-meta { color: var(--muted); }
.tool-story { margin-top: 56px; }
.carry-form { display: grid; gap: 40px; margin-top: 40px; font-size: 15px; line-height: 1.7; }
.tool-body .carry-step-title, .tool-body > .carry-output > .carry-step-title { display: flex; align-items: center; gap: 12px; margin: 0 0 18px; padding: 0; font-size: 20px; line-height: 1.5; font-weight: 700; }
.carry-step-title > span { display: inline-grid; place-items: center; flex: 0 0 auto; color: var(--muted); font-size: 20px; font-weight: 700; }
.carry-item { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 22px; align-items: center; padding: 20px; background: var(--quiet); }
.carry-box { width: 200px; height: 150px; overflow: visible; }
.carry-box polygon { stroke: var(--strong); stroke-width: 1.2; stroke-linejoin: round; }
.carry-box [data-face=front] { fill: #e6e6e6; }
.carry-box [data-face=top] { fill: #f4f4f4; }
.carry-box [data-face=side] { fill: #d6d6d6; }
.carry-box text { fill: var(--ink); font-size: 11px; font-weight: 600; }
.carry-box [data-label=width] { text-anchor: middle; }
.carry-box [data-label=height] { text-anchor: end; }
.carry-box[data-empty=true] polygon { fill: var(--paper); stroke: var(--rule); stroke-dasharray: 4 3; }
.carry-box[data-empty=true] text { fill: var(--muted); font-weight: 400; }
.carry-item-inputs { display: grid; gap: 14px; min-width: 0; }
.carry-fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.carry-field { display: grid; gap: 4px; min-width: 0; font-size: 13px; color: var(--ink); }
.carry-input { display: flex; align-items: center; gap: 5px; }
.carry-input input { width: 100%; min-width: 0; min-height: 46px; border: 1px solid #cccccc; border-radius: 0; padding: 9px 10px; background: var(--paper); font-size: 16px; }
.carry-input > span { color: var(--muted); font-size: 12px; }
.carry-examples, .carry-toggles { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.carry-chip { min-height: 40px; border: 1px solid var(--rule); border-radius: 0; padding: 6px 12px; background: var(--paper); color: var(--ink); font-size: 13px; }
.carry-chip[aria-pressed=true] { border-color: var(--strong); background: var(--strong); color: var(--paper); font-weight: 600; }
.carry-hint { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.carry-toggles { margin-bottom: 22px; }
.tool-body .carry-route { position: relative; margin: 0; padding: 0; list-style: none; }
.carry-route::before { content: ""; position: absolute; left: 7px; top: 12px; bottom: 16px; width: 2px; background: var(--rule); }
.tool-body .carry-stop { position: relative; margin: 0; padding: 0 0 26px 38px; }
.carry-stop::before { content: ""; position: absolute; left: 0; top: 5px; width: 16px; height: 16px; border: 2px solid var(--rule); background: var(--paper); }
.carry-stop[data-status=ok]::before { border-color: var(--accent); background: var(--accent); }
.carry-stop[data-status=tight]::before { border-color: var(--caution); background: var(--caution); }
.carry-stop[data-status=ng]::before { border-color: var(--danger); background: var(--danger); }
.carry-goal::before { border-color: var(--strong); background: var(--strong); }
.tool-body .carry-goal { padding-bottom: 0; }
.tool-body .carry-goal p { margin: 0; color: var(--strong); font-size: 15px; font-weight: 700; line-height: 1.7; }
.carry-point { min-width: 0; margin: 0; padding: 0; border: 0; }
.carry-point legend { margin-bottom: 8px; padding: 0; color: var(--strong); font-size: 15px; font-weight: 700; }
.carry-stop .carry-fields { max-width: 460px; }
.tool-body .carry-stop-result { margin: 0; font-size: 13px; line-height: 1.7; }
.tool-body .carry-stop-result:not(:empty) { margin-top: 10px; padding: 10px 12px; background: var(--quiet); }
.carry-badge { display: block; font-size: 14px; }
.carry-stop[data-status=ok] .carry-badge { color: var(--accent); }
.carry-stop[data-status=tight] .carry-badge { color: var(--caution); }
.carry-stop[data-status=ng] .carry-badge { color: var(--danger); }
.carry-stop-detail { color: var(--ink); }
.carry-submit { justify-self: start; min-width: 200px; }
.tool-body > .carry-output { margin-top: 44px; }
.carry-output [data-carry-in-result]:focus { outline: none; }
.carry-verdict { padding: 22px 24px; background: var(--quiet); }
.tool-body .carry-verdict p { margin: 0; }
.tool-body .carry-verdict .carry-verdict-mark { margin-bottom: 8px; color: var(--strong); font-size: 26px; font-weight: 700; line-height: 1.4; }
.carry-verdict[data-status=ok] .carry-verdict-mark { color: var(--accent); }
.carry-verdict[data-status=tight] .carry-verdict-mark { color: var(--caution); }
.carry-verdict[data-status=ng] .carry-verdict-mark { color: var(--danger); }
.tool-body .carry-verdict .carry-verdict-text { font-size: 15px; line-height: 1.9; }
.tool-body .carry-verdict .carry-verdict-where { margin-top: 10px; font-size: 14px; font-weight: 700; }
.tool-body .carry-verdict .carry-verdict-count { margin-top: 8px; color: var(--muted); font-size: 12px; }
.tool-body .carry-legend { margin: 12px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.footer nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (max-width: 700px) {
  .carry-item { grid-template-columns: 1fr; padding: 16px; }
  .carry-box { justify-self: center; }
  .carry-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tool-body .carry-stop { padding-left: 32px; }
  .carry-item .carry-fields { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tool-header { margin-inline: -16px; padding: 22px 16px; }
  .tool-header h1 { font-size: 22px; }
  .tool-story { margin-top: 44px; }
  .footer nav { grid-template-columns: 1fr 1fr; }
}

/* Tool pages: garbage sorting lookup */

@media (max-width: 700px) {
}

/* Cover images carry a text band at y=0-380 of 1024; list crops show only the photo below it. */
.column-lead .art, .column-thumb .art, .sidebar-thumb .art, .collection .art { position: relative; }
.column-lead .art img, .column-thumb .art img, .sidebar-thumb .art img, .collection .art img { position: absolute; left: 50%; bottom: 0; width: auto; max-width: none; height: 159.3%; transform: translateX(-50%); }
/* Covers with text-free crops (posts.json image.wide/square) have no text band: show them whole. */
.art.art-full img { position: static; width: 100%; height: 100%; max-width: 100%; transform: none; object-fit: cover; object-position: 50% 50%; }

/* Buttons under each home column and the newest-articles link, as on the reference magazine's home. */
.home-column { display: flex; flex-direction: column; }
.list-button { position: relative; display: flex; align-items: center; justify-content: center; min-height: 48px; margin-top: auto; padding: 0 44px; background: var(--strong); color: var(--paper); font-size: 14px; letter-spacing: .08em; text-decoration: none; }
.home-column > :nth-last-child(2) { margin-bottom: 32px; }
.list-button > span { position: absolute; right: 18px; font-size: 20px; line-height: 1; }
.list-button-row { display: flex; justify-content: center; margin: 24px 0 0; }
.list-button-new { width: calc((100% - 60px) / 3); background: var(--muted); }
@media (hover: hover) { .list-button:hover { text-decoration: none; opacity: .85; } }
@media (max-width: 700px) { .list-button-new { width: 100%; } .list-button-row { margin-top: 40px; } }
/* Titles stop at a fixed number of lines so the three columns stay aligned. */
.column-lead h3 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 3.2em; }
.column-list a > span:last-child { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
@media (max-width: 700px) { .column-lead h3 { min-height: 0; } }

/* Article headings, tables, links and share rail follow SmartHR Mag. (mag.smarthr.jp, measured 2026-10-06). */
.article-shell .article-body > section h2 { margin: 0 0 28px; padding-bottom: 19px; border-bottom: 2px solid #edebe8; color: #23221e; font-size: 24px; line-height: 1.6; font-weight: 700; }
.article-shell .article-subsection h3 { position: relative; margin-bottom: 20px; padding-left: 14px; color: #23221e; font-size: 20px; line-height: 32px; font-weight: 700; }
.article-shell .article-subsection h3::before { content: ""; position: absolute; left: 0; top: 0; width: 4px; height: 32px; background: #23221e; }
.article-body a:not(.tool-card):not(.recommendation-card a):not(.share a) { color: #0071c1; font-weight: 700; text-decoration: underline; }
.article-body .toc a { font-weight: 400; }
.article-body .comparison-table { width: 100%; border: 1px solid #edebe8; font-size: 14px; line-height: 28px; letter-spacing: 0; color: #23221e; }
.article-body .comparison-table th, .article-body .comparison-table td { padding: 15px; border: 1px solid #edebe8; vertical-align: baseline; }
.article-body .comparison-table th { background: #f8f7f6; font-weight: 700; }
.article-body .comparison-table caption { margin-bottom: 10px; font-size: 14px; font-weight: 700; }
.article-body .recommendation-card > a { color: #23221e; font-weight: 400; text-decoration: none; }
.article-body .recommendation-publisher, .article-body .recommendation-description { text-decoration: none; }
.article-body .recommendation-title { color: #0071c1; font-size: 15px; font-weight: 700; text-decoration: underline; }
.article-body .recommendation-link { display: none; }
.article-body .recommendation-card:has(.recommendation-price) .recommendation-link { display: block; color: #0071c1; }
.article-shell { position: relative; }
.share { position: absolute; top: 96px; bottom: 0; left: -96px; width: 40px; }
.share-inner { position: sticky; top: 120px; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.share-label { margin: 0; color: #23221e; font-size: 11px; letter-spacing: .2em; writing-mode: vertical-rl; }
.share ul { display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; }
.share a, .share button { display: grid; place-items: center; width: 40px; height: 40px; border: 0; padding: 0; background: none; color: #23221e; }
.share-copy { position: relative; }
.share-copy[data-copied] { color: var(--muted); }
.share-copy[data-copied]::after { content: "コピーしました"; position: absolute; top: 50%; right: 44px; transform: translateY(-50%); padding: 4px 8px; background: #23221e; color: #fff; font-size: 12px; line-height: 1.4; white-space: nowrap; }
@media (max-width: 1240px) {
  .share { position: static; width: auto; margin: 0 0 8px; }
  .share-inner { position: static; flex-direction: row; justify-content: flex-start; }
  .share-label { writing-mode: horizontal-tb; letter-spacing: .08em; }
  .share ul { grid-auto-flow: column; }
  .share-copy[data-copied]::after { top: 44px; right: 0; transform: none; z-index: 1; }
}

/* Vertical (3:4) hand-drawn explanations sit centered, narrower than photos, so the text stays in view. */
.article-diagram img { width: min(100%, 480px); margin-inline: auto; }
.article-diagram figcaption { text-align: center; }
/* The 40px reading inset is for PC only; phones use the full column (16px page gutter). */
@media (max-width: 700px) { .article-shell .article-body { padding-inline: 0; } }

/* Moving checklist timeline (tools/moving-checklist). Black, white and grey only; square markers. */
.tool-body .todo { margin: 8px 0 48px; }
.tool-body .todo-head { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px 24px; margin-bottom: 40px; padding: 20px; background: var(--quiet); }
.tool-body .todo-date { display: flex; flex-direction: column; gap: 6px; }
.tool-body .todo-date label { color: var(--strong); font-size: 13px; font-weight: 700; }
.tool-body .todo-date input { min-height: 44px; padding: 8px 12px; border: 1px solid #cccccc; border-radius: 0; background: var(--paper); color: var(--strong); font-size: 16px; }
.tool-body .todo-status { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 0 0 10px; color: var(--ink); font-size: 14px; }
.tool-body .todo-status strong { color: var(--strong); font-size: 18px; }
.tool-body .todo-line { margin: 0; padding: 0; list-style: none; }
.tool-body .todo-step { display: grid; grid-template-columns: minmax(84px, 128px) 24px minmax(0, 1fr); column-gap: 14px; }
.tool-body .todo-when { padding-top: 1px; text-align: right; }
.tool-body .todo-when h2 { margin: 0; padding: 0; border: 0; color: var(--strong); font-size: 17px; line-height: 1.4; font-weight: 700; }
.tool-body .todo-when h2::before, .tool-body .todo-when h2::after { content: none; }
.tool-body .todo-when p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.tool-body .todo-dot { position: relative; }
.tool-body .todo-dot::before { content: ""; position: absolute; top: 0; bottom: 0; left: 11px; width: 2px; background: var(--rule); }
.tool-body .todo-step:last-child .todo-dot::before { display: none; }
.tool-body .todo-dot::after { content: ""; position: absolute; top: 5px; left: 4px; width: 16px; height: 16px; border: 2px solid var(--strong); background: var(--paper); }
.tool-body .todo-step[data-state="past"] .todo-dot::before { background: var(--strong); }
.tool-body .todo-step[data-state="past"] .todo-dot::after, .tool-body .todo-step[data-state="current"] .todo-dot::after { background: var(--strong); }
.tool-body .todo-step[data-state="current"] .todo-dot::after { top: 2px; left: 1px; width: 22px; height: 22px; }
.tool-body .todo-step[data-state="past"] .todo-when h2 { color: var(--muted); }
.tool-body .todo-items { min-width: 0; padding-bottom: 36px; }
.tool-body .todo-now { display: inline-block; margin: 0 0 10px; padding: 2px 8px; background: var(--strong); color: var(--paper); font-size: 12px; font-weight: 700; }
.tool-body .todo-items > ul { display: flex; flex-direction: column; gap: 8px; margin: 0; padding: 0; list-style: none; }
.tool-body .todo-item { display: flex; gap: 12px; align-items: flex-start; margin: 0; }
.tool-body .todo-item input { flex: none; width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--accent); }
.tool-body .todo-body { min-width: 0; flex: 1; }
.tool-body .todo-body label { color: var(--strong); font-size: 16px; line-height: 1.7; font-weight: 700; cursor: pointer; }
.tool-body .todo-item input:checked + .todo-body label { color: var(--muted); text-decoration: line-through; }
.tool-body .todo-body details { margin: 0; }
.tool-body .todo-body summary { display: inline-block; min-height: 32px; padding: 4px 0; color: #555555; font-size: 13px; text-decoration: underline; cursor: pointer; list-style: none; }
.tool-body .todo-body summary::-webkit-details-marker { display: none; }
.tool-body .todo-body details p { margin: 2px 0 0; padding: 12px 14px 0; background: var(--quiet); font-size: 14px; line-height: 1.85; }
.tool-body .todo-body details p:last-child { padding-bottom: 12px; }
.tool-body .todo-links { margin: 0; padding: 8px 14px 12px 30px; background: var(--quiet); font-size: 13px; line-height: 1.7; }
.tool-body .todo-links a { color: #0071c1; font-weight: 700; }
.tool-body .todo-note { margin: 0; color: var(--muted); font-size: 12px; }
@media (max-width: 700px) {
  .tool-body .todo-step { grid-template-columns: 72px 24px minmax(0, 1fr); column-gap: 10px; }
  .tool-body .todo-when h2 { font-size: 15px; }
  .tool-body .todo-when p { font-size: 12px; }
}