:root{
  --navy:#0e2948;--navy2:#173f68;--blue:#2376ad;--blue2:#69a9d2;
  --bg:#f5f7fa;--panel:#fff;--line:#dce5ed;--text:#17212b;--muted:#697886;
  --good:#e8f6ec;--goodText:#1f6a39;--warn:#fff5dc;--bad:#fde9e7;--badText:#a23c31;
  --shadow:0 8px 26px rgba(14,41,72,.07);--radius:16px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Yu Gothic UI","Meiryo",sans-serif}
a{color:inherit}
.wrap{width:min(1440px,calc(100% - 32px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-weight:900;color:var(--navy);white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;font-size:15px}
.nav-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.nav-links a{text-decoration:none;color:#455c72;font-size:13px;font-weight:800;padding:24px 0 21px;border-bottom:3px solid transparent}
.nav-links a:hover,.nav-links a.active{color:var(--blue);border-bottom-color:var(--blue)}
.hero{background:linear-gradient(135deg,#0c2746 0%,#1b5e91 70%,#2577aa 100%);color:#fff;padding:54px 0 48px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.7fr);gap:28px;align-items:end}
.eyebrow{font-size:12px;font-weight:900;letter-spacing:.16em;opacity:.72}
h1{margin:9px 0 12px;font-size:clamp(30px,4vw,50px);line-height:1.12;letter-spacing:-.02em}
.hero p{margin:0;max-width:820px;line-height:1.9;opacity:.91}
.hero-statbox{border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.09);border-radius:14px;padding:18px}
.hero-statbox .k{font-size:11px;opacity:.7;font-weight:800}
.hero-statbox .v{font-size:28px;font-weight:900;margin-top:4px}
.meta{font-size:12px;opacity:.7;margin-top:14px}
main{padding:30px 0 64px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:24px;box-shadow:var(--shadow)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}
.section-head h2,.panel h2{margin:0 0 6px;color:var(--navy);font-size:23px;letter-spacing:-.01em}
.section-head p,.panel p{margin:0;color:var(--muted);line-height:1.8}
.filters{display:grid;grid-template-columns:repeat(5,minmax(130px,1fr));gap:12px;padding:16px;background:#eef5fb;border-radius:12px;margin-bottom:22px}
label{font-size:12px;font-weight:900;color:#36516a}
select{width:100%;margin-top:6px;padding:10px;border:1px solid #bfd0df;border-radius:8px;background:#fff;font:inherit;color:var(--text)}
.ranking-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.rank-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.rank-card h3{margin:0;background:#173b62;color:#fff;padding:11px 13px;font-size:15px}
.rank-table{width:100%;border-collapse:collapse;font-size:12px}
.rank-table th{background:#edf3f8;color:#4c6074;text-align:right;padding:8px 6px;border-bottom:1px solid var(--line)}
.rank-table th:nth-child(2){text-align:left}
.rank-table td{padding:8px 6px;border-bottom:1px solid #eef2f6;text-align:right;white-space:nowrap}
.rank-table td:nth-child(2){text-align:left;max-width:150px;overflow:hidden;text-overflow:ellipsis}
.rank-table tr:last-child td{border-bottom:0}
.idx-high{background:var(--good);font-weight:900;color:var(--goodText)}
.idx-mid{background:var(--warn);font-weight:800}
.idx-low{background:var(--bad);color:var(--badText)}
.reliability{display:inline-block;min-width:25px;text-align:center;padding:2px 6px;border-radius:999px;background:#edf2f7;font-weight:900}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0 22px}
.kpi{padding:18px;border-radius:12px;background:#f7f9fb;border:1px solid var(--line)}
.kpi .label{font-size:12px;color:var(--muted);font-weight:900}
.kpi .value{font-size:28px;font-weight:900;margin-top:5px;color:var(--navy)}
.kpi .sub{font-size:11px;color:var(--muted);margin-top:4px;line-height:1.5}
.table-wrap{overflow:auto}
.history-table{width:100%;border-collapse:collapse;font-size:13px}
.history-table th{background:#173b62;color:#fff;padding:10px 8px;text-align:left;white-space:nowrap}
.history-table td{padding:10px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.info-card{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}
.info-card .tag{display:inline-block;font-size:11px;font-weight:900;color:var(--blue);background:#edf6fc;border-radius:999px;padding:4px 8px;margin-bottom:10px}
.info-card h3{margin:0 0 8px;color:var(--navy);font-size:17px}
.info-card p{font-size:14px}
.btn{display:inline-block;text-decoration:none;background:#173b62;color:#fff;font-weight:900;padding:11px 16px;border-radius:9px;white-space:nowrap}
.btn.secondary{background:#eef5fb;color:#173b62}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.prose{max-width:940px}
.prose h2{margin-top:32px}
.prose h3{color:var(--navy);margin-top:23px}
.prose p{margin:0 0 16px;line-height:1.95}
.prose ul,.prose ol{line-height:1.95;color:#44576a}
.notice{padding:14px 16px;border-left:4px solid var(--blue);background:#edf5fb;border-radius:6px;color:#35536d;line-height:1.8}
.note-box{margin-top:18px;padding:16px;background:#fff7e3;border:1px solid #efd487;border-radius:10px;line-height:1.75}
.mini-table{width:100%;border-collapse:collapse;margin:18px 0}
.mini-table th,.mini-table td{padding:10px;border:1px solid var(--line);text-align:left}
.mini-table th{background:#eef4f8;color:#3f566c}
.article-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.article-card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px;transition:.15s ease}
.article-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#bfd2e3}
.article-card .num{font-size:11px;color:var(--blue);font-weight:900;letter-spacing:.08em}
.article-card h3{margin:8px 0;color:var(--navy)}
.article-card p{font-size:13px;color:var(--muted);line-height:1.75;margin:0}
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{text-decoration:none;color:var(--blue)}
.empty{padding:20px;color:var(--muted);text-align:center}
.site-footer{background:#0e2948;color:#c9d6e3;padding:30px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.footer-brand{font-weight:900;color:#fff;margin-bottom:6px}
.footer-grid p{margin:0;line-height:1.7;font-size:12px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}
.footer-links a{color:#e4edf5;text-decoration:none;font-size:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:16px;font-size:11px;opacity:.7}
@media(max-width:1000px){
 .ranking-grid{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:repeat(3,1fr)}
 .kpi-grid,.cards,.article-list{grid-template-columns:repeat(2,1fr)}
 .hero-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
 .nav{align-items:flex-start;padding:13px 0;flex-direction:column}.nav-links{gap:12px}.nav-links a{padding:0 0 9px}
 .wrap{width:min(100% - 20px,1440px)}.panel{padding:16px}.ranking-grid{grid-template-columns:1fr}
 .filters{grid-template-columns:1fr 1fr}.grid-2{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){.filters,.kpi-grid,.cards,.article-list{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr}}