:root{color:#172a35;font-synthesis:none;--accent:#007c80;--muted:#596c78;--line:#d4dde2;background:#f7f9fa;font-family:Noto Sans JP,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible{outline-offset:5px;outline:3px solid #b67221}.skip{position:absolute;top:-100px}.skip:focus{z-index:9;background:#fff;padding:16px;top:0}.masthead{background:#fff;border-top:5px solid #172a35}.masthead-inner,nav,main,footer{max-width:1200px;margin:auto}.masthead-inner{justify-content:space-between;align-items:center;padding:30px 30px 24px;display:flex}.brand{letter-spacing:-1px;font-family:Georgia,serif;font-size:38px;font-weight:700}.brand span{letter-spacing:2px;margin-top:7px;font-family:Arial,sans-serif;font-size:11px;display:block}.brand-note{color:var(--muted);font-size:14px}nav{border-top:1px solid var(--line);gap:30px;padding:0 30px;display:flex}nav a{padding:17px 0;font-size:14px;font-weight:700}nav a[aria-current]{border-bottom:3px solid var(--accent)}nav .rss{color:var(--muted);margin-left:auto}main{min-height:65vh;padding:44px 30px 72px}.demo-banner{color:#6e4c13;text-align:center;background:#fff0cf;border-bottom:1px solid #ead6aa;padding:12px 24px;font-size:14px}.eyebrow{color:var(--accent);letter-spacing:2px;margin:0 0 14px;font-size:12px;font-weight:700}.intro{border-bottom:1px solid var(--line);margin-bottom:36px;padding-bottom:30px}.intro h1{letter-spacing:.02em;margin:0 0 16px;font-size:clamp(28px,4vw,44px);line-height:1.45}.intro p{max-width:730px;color:var(--muted);margin-bottom:0;line-height:1.9}.section-title{border-bottom:2px solid #203640;justify-content:space-between;align-items:baseline;gap:20px;margin:34px 0 0;padding-bottom:14px;display:flex}.section-title h2{margin:0;font-size:20px}.section-title a{color:var(--muted);font-size:14px}.home-grid{grid-template-columns:minmax(0,2fr) minmax(250px,1fr);gap:40px;display:grid}.feature{border-left:4px solid var(--accent);background:#e9f1f3;margin-top:22px;padding:30px}.feature h2{margin:15px 0;font-size:28px;line-height:1.6}.feature p{line-height:1.9}.tags{flex-wrap:wrap;gap:8px;display:flex}.tag{color:var(--accent);background:#e4eff0;padding:4px 8px;font-size:12px;font-weight:700}.meta{color:var(--muted);font-size:13px;line-height:1.8}.cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 28px;display:grid}.card{border-bottom:1px solid var(--line);padding:24px 0}.card h2,.card h3{margin:12px 0;font-size:20px;line-height:1.6}.card p{color:var(--muted);font-size:15px;line-height:1.9}.card .arrow{color:var(--accent);font-size:14px}.empty{border:1px solid var(--line);background:#edf2f4;margin-top:22px;padding:34px 24px;line-height:1.9}.empty h2,.empty h3{margin:0 0 8px;font-size:20px}.empty p{color:var(--muted);margin:0}.event{border-bottom:1px solid var(--line);padding:22px 0}.event time{color:var(--accent);font-family:monospace;font-size:15px}.event h3{font-size:17px}.event p{color:var(--muted);font-size:14px;line-height:1.8}.filters{flex-wrap:wrap;gap:10px;margin:24px 0;display:flex}.filters a{border:1px solid var(--line);background:#fff;border-radius:3px;padding:10px 20px;font-size:14px}.filters a[aria-current]{color:#fff;background:#203640;border-color:#203640}.reading{max-width:800px;margin:auto}.reading h1{font-size:clamp(27px,4vw,40px);line-height:1.6}.reading h2{border-top:1px solid var(--line);margin-top:42px;padding-top:26px;font-size:23px}.reading h3{font-size:19px}.reading p,.reading li{font-size:16px;line-height:2}.reading li{margin-bottom:10px}.reading a:not(.tag){color:var(--accent);text-underline-offset:4px;text-decoration:underline}.reading .lead{color:var(--muted);font-size:18px;line-height:1.95}.breadcrumb{color:var(--muted);margin-bottom:30px;font-size:14px}.analysis-box{background:#eaf0f3;border-left:3px solid #536f82;margin:20px 0;padding:22px 26px}.analysis-box h3{margin-top:0}.chart{border:1px solid var(--line);background:#fff;min-width:0;margin:32px 0;padding:24px}.chart figcaption{font-size:19px;font-weight:700}.chart-view{width:100%;height:300px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:14px}caption{text-align:left;color:var(--muted);padding:12px 0}th,td{text-align:right;border-bottom:1px solid var(--line);white-space:nowrap;padding:12px}th:first-child,td:first-child{text-align:left}th{background:#f0f5f6}footer{color:var(--muted);border-top:2px solid #203640;justify-content:space-between;gap:24px;padding:32px 30px 42px;font-size:13px;display:flex}footer strong{color:#203640;font-family:Georgia,serif;font-size:24px}code{overflow-wrap:anywhere}[hidden]{display:none!important}@media (width<=760px){.masthead-inner{padding:24px 20px}.brand{font-size:30px}.brand-note{display:none}nav{gap:20px;padding:0 20px}nav a{font-size:13px}nav 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