:root{--bg:#f4f7fb;--fg:#13233b;--mute:#566780;--card:#fff;--line:#d9e2ee;--acc:#1f5fa8;--acc2:#9dbde3;--navy:#10294d;--soft:#e8f0fa;--pos:#15803d;--neg:#b42318}
@media(prefers-color-scheme:dark){:root{--bg:#0c1626;--fg:#e6edf7;--mute:#9db0c8;--card:#13223a;--line:#25364f;--acc:#6aa8ee;--acc2:#3b5f8c;--navy:#0a1424;--soft:#172a46;--pos:#4ade80;--neg:#f87171}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.85 "Hiragino Sans","Yu Gothic",Meiryo,sans-serif}
a{color:var(--acc)}main,footer,.in{max-width:880px;margin:0 auto;padding:0 16px}
header.top{background:var(--navy);color:#fff}header.top .in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 24px;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-weight:700;font-size:1.12rem}.brand svg{width:34px;height:34px;flex:none}
nav{display:flex;flex-wrap:wrap;gap:2px 18px;font-size:.92rem}nav a{color:#cfe0f5;text-decoration:none;padding:2px 0;border-bottom:2px solid transparent}nav a:hover{color:#fff;border-color:var(--acc2)}
h1{font-size:1.6rem;line-height:1.4;margin:30px 0 10px;letter-spacing:.01em}h2{font-size:1.2rem;margin:40px 0 10px;padding:2px 0 2px 12px;border-left:4px solid var(--acc)}
.lead{color:var(--mute);font-size:1.02rem}.note{background:var(--soft);border-radius:8px;padding:10px 14px;font-size:.92rem;color:var(--mute)}
table{border-collapse:separate;border-spacing:0;width:100%;font-size:.92rem;margin:12px 0;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden}
th,td{border-bottom:1px solid var(--line);padding:7px 10px;text-align:right}tr:last-child td{border-bottom:0}th:first-child,td:first-child{text-align:left}th{background:var(--soft);font-weight:600}
.pos{color:var(--pos)}.neg{color:var(--neg)}.wrap{overflow-x:auto}
.heat td{text-align:center;padding:4px 2px;font-size:.78rem;min-width:30px;color:#0b1b33;border:1px solid var(--card)}.heat th{padding:4px 2px;font-size:.78rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin:18px 0}
.card{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--acc);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--fg);transition:box-shadow .15s}
.card:hover{box-shadow:0 4px 14px rgba(16,41,77,.12)}.card b{display:block;margin-bottom:4px}.card span{font-size:.88rem;color:var(--mute)}
.hero{background:linear-gradient(135deg,var(--navy),#1d4e8f);color:#fff;border-radius:0 0 18px 18px;margin:0 -16px;padding:30px 16px 26px}
.hero h1{margin:0 0 8px;font-size:1.7rem}.hero p{margin:0;color:#d4e3f6}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:22px 0 0}
.stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:12px 14px}
.stat b{display:block;font-size:1.65rem;line-height:1.3;color:#fff}.stat span{font-size:.84rem;color:#c3d6ee}
.chart{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:12px 0}
.legend{display:flex;gap:16px;font-size:.84rem;color:var(--mute);margin:2px 0 4px}.legend i{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:5px;vertical-align:-1px}
footer{margin-top:52px;padding-top:18px;padding-bottom:42px;border-top:1px solid var(--line);font-size:.85rem;color:var(--mute)}
svg text{fill:var(--mute);font-size:11px}