:root { color-scheme: light; --ink:#17202f; --muted:#667085; --line:#e4e7ec; --brand:#176b87; --soft:#f4f8fb; }
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif; color: var(--ink); background: #fff; line-height: 1.75; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header { height: 64px; display: flex; align-items: center; justify-content: space-between; padding: 0 32px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(255,255,255,.94); backdrop-filter: blur(8px); z-index: 3; }
.brand { font-weight: 800; color: var(--ink); }
nav { display: flex; gap: 18px; font-size: 14px; }
main { width: min(1040px, calc(100% - 40px)); margin: 0 auto; padding: 40px 0 80px; }
.hero { padding: 40px 0 24px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(30px, 5vw, 56px); line-height: 1.15; margin: 0 0 16px; letter-spacing: 0; }
.hero p { color: var(--muted); font-size: 17px; max-width: 760px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 22px; margin-top: 32px; }
.card { border: 1px solid var(--line); border-radius: 8px; padding: 18px; background: #fff; }
.card h2, .card h3 { margin: 0 0 10px; line-height: 1.35; font-size: 18px; }
.meta { color: var(--muted); font-size: 13px; display: flex; gap: 10px; flex-wrap: wrap; }
.pill { display: inline-flex; align-items: center; padding: 3px 9px; border-radius: 999px; background: var(--soft); color: #315369; font-size: 12px; }
.article { max-width: 860px; }
.article h1 { font-size: clamp(28px, 4vw, 44px); line-height: 1.2; margin: 0 0 14px; letter-spacing: 0; }
.article h2 { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 28px; line-height: 1.35; letter-spacing: 0; }
.article img { max-width: 100%; height: auto; border-radius: 8px; }
.eyecatch { margin: 28px 0; border-radius: 8px; overflow: hidden; background: var(--soft); }
.eyecatch img { width: 100%; display: block; }
.report-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.report-table th, .report-table td { border-bottom: 1px solid var(--line); padding: 12px; text-align: left; vertical-align: top; }
.report-table th { background: var(--soft); }
pre { white-space: pre-wrap; background: #101827; color: #f8fafc; padding: 16px; border-radius: 8px; overflow:auto; }