:root { color-scheme: light; --ink: #18263a; --brand: #123663; --line: #dce3eb; --muted: #4f6074; }
* { box-sizing: border-box; }
body { margin: 0; background: #f4f7fb; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif; font-weight: 400; line-height: 1.8; overflow-wrap: anywhere; }
a { color: #164a86; text-underline-offset: .2em; }
a:hover { color: #082b52; }
a:focus-visible { outline: 3px solid #bc5d00; outline-offset: 4px; border-radius: 3px; }
.shell { max-width: 1060px; margin: auto; padding: 24px; }
.site-header { background: white; border-bottom: 1px solid var(--line); }
.site-header .shell { padding-top: 18px; padding-bottom: 18px; }
.brand { color: var(--brand); font-weight: 850; font-size: 1.45rem; letter-spacing: .04em; text-decoration: none; }
.site-header p { margin: 0; color: var(--muted); font-size: .92rem; }
.breadcrumbs { margin: 0 0 26px; font-size: .9rem; }
h1 { font-size: clamp(1.55rem, 4vw, 2.15rem); line-height: 1.5; margin: 8px 0 18px; }
h2 { font-size: 1.2rem; line-height: 1.6; margin: 0 0 12px; }
h3 { font-size: 1rem; margin: 20px 0 6px; }
p { margin: 10px 0; }
.eyebrow { color: var(--muted); font-size: .88rem; margin: 0; }
.lede { font-size: 1.07rem; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin: 24px 0; }
.button { display: inline-block; padding: 11px 18px; border-radius: 9px; background: var(--brand); color: white; font-weight: 650; text-decoration: none; }
.button:hover { background: #214c80; color: white; }
.panel { background: white; border: 1px solid var(--line); border-radius: 12px; margin: 18px 0; padding: 24px; }
.caution { border-left: 4px solid #b06b20; }
.note { color: var(--muted); font-size: .9rem; }
.facts { margin: 0; }
.facts > div { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 18px; padding: 12px 0; border-bottom: 1px solid #e7ecf2; }
.facts > div:last-child { border: 0; }
dt { font-weight: 650; } dd { margin: 0; }
.source-url { display: block; margin-top: 4px; color: var(--muted); font-size: .8rem; }
.case-list { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.case-list .panel { margin: 0; }
.site-footer { color: var(--muted); font-size: .88rem; padding-bottom: 40px; }
.skip-link { position: absolute; left: 12px; top: -100px; background: white; padding: 8px 12px; z-index: 1; }
.skip-link:focus { top: 10px; }
@media (max-width: 650px) { .shell { padding: 18px 16px; } .panel { padding: 18px; } .case-list { grid-template-columns: 1fr; } .facts > div { grid-template-columns: 1fr; gap: 3px; } .actions { align-items: flex-start; flex-direction: column; } }

.detail-disclosure > summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 650; gap: 8px; }
.detail-disclosure > summary::before { content: "＋"; }
.detail-disclosure[open] > summary::before { content: "−"; }
.detail-disclosure > summary { list-style: none; }
.detail-disclosure > summary::-webkit-details-marker { display: none; }
.detail-disclosure:not([open]) { padding-top: 10px; padding-bottom: 10px; }
.stage-note, .source-dates { font-size: .9rem; color: var(--muted); }
.audit-facts > div { padding: 7px 0; }
.audit-facts dt { font-weight: 400; }