.site-header { position: relative; z-index: 100; color: var(--ink); background: rgba(255,253,250,.96); border-bottom: 1px solid var(--line); }
.site-header__utility { display: flex; min-height: 36px; justify-content: space-between; align-items: center; gap: 20px; border-bottom: 1px solid var(--line); font-size: .72rem; font-weight: 700; letter-spacing: .05em; }
.site-header__utility p { margin: 0; }
.site-header__utility div { display: flex; gap: 18px; }
.site-header__main { display: flex; min-height: 92px; align-items: center; gap: 28px; }
.site-brand { display: flex; flex: 0 1 390px; align-items: center; gap: 15px; text-decoration: none; }
.site-brand__emblem { flex: 0 0 58px; width: 58px; height: 58px; object-fit: contain; }
.site-brand__number { color: var(--gold-ink); font: 700 2.3rem/.85 var(--font-serif); letter-spacing: -.08em; }
.site-brand__text { display: grid; gap: 1px; }
.site-brand__text { min-width: 0; }
.site-brand__text strong { font-size: 1.1rem; letter-spacing: .08em; white-space: nowrap; }
.site-brand__text small { font-size: .67rem; font-weight: 700; }
.primary-nav { margin-left: auto; }
.primary-nav > ul { display: flex; align-items: center; gap: clamp(10px, 1.5vw, 25px); margin: 0; padding: 0; list-style: none; }
.primary-nav > ul > li { position: relative; display: flex; align-items: center; }
.primary-nav a { font-size: .82rem; font-weight: 800; text-decoration: none; white-space: nowrap; }
.primary-nav > ul > li > a { padding-block: 32px; }
.primary-nav .nav-contact > a { padding: 11px 15px; color: #fff; background: var(--navy); }
.submenu-toggle { width: 28px; height: 28px; border: 0; background: transparent; }
.submenu { position: absolute; z-index: 5; top: calc(100% - 15px); left: -18px; display: none; min-width: 230px; margin: 0; padding: 12px 0; background: var(--navy-deep); box-shadow: var(--shadow); list-style: none; }
.submenu li a { display: block; padding: 10px 18px; color: #fff; }
.has-submenu:hover .submenu, .has-submenu:focus-within .submenu, .has-submenu.is-open .submenu { display: block; }
.has-submenu.is-escape-closed .submenu { display: none; }
.menu-toggle { display: none; margin-left: auto; padding: 10px; border: 0; background: transparent; font-weight: 800; }
.menu-toggle__icon { display: inline-block; width: 24px; height: 2px; margin-left: 8px; background: currentColor; box-shadow: 0 -7px, 0 7px; vertical-align: middle; }
.breadcrumbs { padding-block: 13px; color: var(--ink-soft); font-size: .76rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { content: "/"; margin-right: 7px; opacity: .45; }
.breadcrumbs a { color: inherit; }
.editorial-intro { position: relative; padding-block: clamp(60px, 9vw, 130px); overflow: hidden; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.editorial-intro::after { content: "331"; position: absolute; right: -1vw; bottom: -5vw; color: rgba(18,53,82,.06); font: 700 clamp(8rem, 25vw, 24rem)/.7 var(--font-serif); }
.editorial-intro__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr); gap: 7vw; align-items: center; }
.editorial-intro h1 { max-width: 950px; margin-bottom: 28px; }
.editorial-intro__media img { aspect-ratio: 16/10; object-fit: cover; box-shadow: var(--shadow); }
.focus-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-top: 1px solid var(--line); }
.focus-item { padding: 30px 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.focus-item:nth-child(4n+1) { border-left: 1px solid var(--line); }
.focus-item img { width: 64px; margin-bottom: 24px; }
.focus-item h3 { font-size: 1.12rem; }
.focus-item p { color: var(--ink-soft); font-size: .87rem; }
.focus-item a { font-size: .84rem; font-weight: 800; }
.focus-connection { padding-top: 12px; border-top: 1px dotted var(--line); }
.focus-examples__label { margin: 18px 0 7px; color: var(--ink)!important; font-weight: 800; }
.focus-examples { display: grid; gap: 5px; margin: 0 0 18px; padding-left: 1.2em; color: var(--ink-soft); font-size: .82rem; }
.source-note { margin-top: 20px; font-size: .82rem; }
.source-note a { font-weight: 800; }
.hokkaido-map-layout { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(300px,.85fr); gap: 6vw; align-items: center; }
.hokkaido-map { position: relative; }
.hokkaido-map svg { width: 100%; }
.story-list { border-top: 1px solid var(--line); }
.story-row { display: grid; grid-template-columns: 170px minmax(0,1fr) 34px; gap: 28px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); }
.story-row__meta { display: grid; gap: 6px; font-size: .78rem; }
.story-row__meta span { color: var(--blue); font-weight: 800; }
.story-row__body h2, .story-row__body h3 { margin-bottom: 5px; font: 600 var(--step-1)/1.4 var(--font-serif); }
.story-row__body p { margin: 0; color: var(--ink-soft); font-size: .9rem; }
.story-row__link { position: absolute; inset: 0; }
.story-row { position: relative; }
.story-row__arrow { font-size: 1.4rem; }
.site-footer { padding-top: 90px; color: #fff; background: var(--navy-deep); }
.site-footer__lead { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,.55fr); gap: 70px; align-items: end; padding-bottom: 70px; border-bottom: 1px solid rgba(255,255,255,.25); }
.site-footer__number { margin-bottom: 6px; color: var(--gold); font: 700 3.8rem/.9 var(--font-serif); }
.site-footer__lead h2 { font-size: var(--step-3); }
.site-footer__lead-links { display: grid; }
.is-light { color: #fff; }
.site-footer__nav { display: grid; grid-template-columns: repeat(5,1fr); gap: 32px; padding-block: 60px; }
.site-footer__nav h3 { color: var(--gold-soft); font: 800 .8rem var(--font-sans); letter-spacing: .12em; }
.site-footer__nav ul { margin: 0; padding: 0; list-style: none; }
.site-footer__nav li + li { margin-top: 8px; }
.site-footer__nav a { color: rgba(255,255,255,.78); font-size: .82rem; text-decoration: none; }
.site-footer__bottom { display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; align-items: center; padding-block: 22px; border-top: 1px solid rgba(255,255,255,.2); font-size: .7rem; }
.site-footer__bottom p { margin: 0; }
.site-footer__bottom div { display: flex; gap: 18px; }
.site-footer__bottom p:last-child { text-align: right; }

/* RC4: authoritative municipality map and responsive editorial images. */
.responsive-picture { display: block; }
.editorial-intro__media { position: relative; margin: 0; }
.editorial-intro__media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; box-shadow: var(--shadow); }
.editorial-intro__media figcaption, .joint-projects figcaption, .partnership-section figcaption, .convention-after figcaption, .service-home__visual figcaption { padding: 6px 9px; color: var(--ink-soft); background: var(--paper-2); font-size: .68rem; }
.hokkaido-map-layout { grid-template-columns: minmax(0,1.55fr) minmax(320px,.72fr); gap: clamp(35px,5vw,75px); align-items: start; }
.hokkaido-map { margin: 0; }
.hokkaido-map__canvas { overflow: hidden; border: 1px solid var(--line); background: #f8f6f1; box-shadow: 0 20px 55px rgba(14,48,73,.08); }
.hokkaido-map svg { width: 100%; min-width: 0; }
.hokkaido-map .municipality { stroke: rgba(255,255,255,.82); stroke-width: .72; vector-effect: non-scaling-stroke; }
.hokkaido-map .municipality--a { fill: #c99a24; }
.hokkaido-map .municipality--b { fill: #1e6c91; }
.hokkaido-map .municipality--c { fill: #a64e5d; }
.hokkaido-map .district-map-link { outline: none; }
.hokkaido-map .district-map-link:hover .municipality,
.hokkaido-map .district-map-link:focus .municipality { filter: brightness(1.12); stroke: var(--navy-deep); stroke-width: 1.5; }
.hokkaido-map .district-map-link:focus-visible { outline: none; }
.hokkaido-map .map-labels text { font-family: var(--font-sans); font-weight: 900; fill: var(--navy-deep); }
.hokkaido-map .map-labels .label { font-size: 28px; fill: #fff; stroke: rgba(8,31,49,.55); stroke-width: 5px; paint-order: stroke fill; }
.hokkaido-map .map-labels path { fill: none; stroke: var(--navy-deep); stroke-width: 3; }
.hokkaido-map figcaption { display: grid; gap: 4px; padding: 18px 3px 0; font-size: .78rem; }
.hokkaido-map figcaption span, .map-attribution { color: var(--ink-soft); }
.map-attribution { margin: 10px 0 0; font-size: .66rem; line-height: 1.65; }
.hokkaido-map__guide { padding-top: 10px; }
.hokkaido-map__guide h3 { font: 600 clamp(1.8rem,3.4vw,3rem)/1.3 var(--font-serif); }
.hokkaido-map__guide > p:not(.kicker) { color: var(--ink-soft); font-size: .88rem; }
.map-legend { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 25px; }
.map-legend__item { --map-accent: var(--blue); display: grid; width: 100%; min-height: 72px; grid-template-columns: 22px minmax(0,1fr) auto; gap: 12px; align-items: center; padding: 13px 16px; border: 1px solid var(--line); border-left: 6px solid var(--map-accent); color: var(--ink); background: var(--white); text-decoration: none; transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.map-legend__item:hover { border-color: var(--map-accent); box-shadow: 0 10px 24px rgba(8,29,45,.1); transform: translateY(-1px); }
.map-legend__item:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.map-legend__label { min-width: 0; }
.map-legend__label strong { display: block; line-height: 1.35; white-space: nowrap; }
.map-legend__item small { display: block; margin-top: 2px; color: var(--ink-soft); font-size: .69rem; line-height: 1.5; }
.map-legend__swatch { width: 20px; height: 28px; border: 1px solid rgba(15,44,66,.28); background: var(--map-accent); }
.map-legend__item--a { --map-accent: #c99a24; }
.map-legend__item--b { --map-accent: #1e6c91; }
.map-legend__item--c { --map-accent: #a64e5d; }
.map-legend__item--a .map-legend__swatch { background: #c99a24; }
.map-legend__item--b .map-legend__swatch { background: #1e6c91; }
.map-legend__item--c .map-legend__swatch { background: #a64e5d; }
.map-text-alternative { margin-top: 20px; padding-top: 15px; border-top: 1px solid var(--line); font-size: .75rem; }
.map-text-alternative summary { cursor: pointer; font-weight: 900; }
.map-text-alternative h4 { margin: 18px 0 4px; }
.map-text-alternative p { color: var(--ink-soft); line-height: 1.75; }