/* Layout: 新聞の週刊版。左に号情報の細い柱、右に本文。カテゴリはチップで区別 */
:root{
  --navy:#1B3A6B; --ink:#1c2230; --muted:#5d6678; --paper:#f7f8fb; --card:#ffffff; --line:#d9dee8; --tint:#e8eef7;
  --c-sys:#1B3A6B; --c-ai:#6a4bb3; --c-sec:#b3402f; --c-reg:#2f7a5b;
  --display:"Noto Serif JP","Hiragino Mincho ProN",serif;
  --body:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --navy:#8fb0e6; --ink:#e6e9f0; --muted:#a3abbb; --paper:#11151d; --card:#181d27; --line:#2b3242; --tint:#1e2636;
    --c-sys:#8fb0e6; --c-ai:#b59cf0; --c-sec:#f08b78; --c-reg:#7fd0aa; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --navy:#8fb0e6; --ink:#e6e9f0; --muted:#a3abbb; --paper:#11151d; --card:#181d27; --line:#2b3242; --tint:#1e2636;
  --c-sys:#8fb0e6; --c-ai:#b59cf0; --c-sec:#f08b78; --c-reg:#7fd0aa; color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.8}
a{color:var(--navy)}
a:focus-visible{outline:2px solid var(--navy);outline-offset:2px}
.masthead{background:#1B3A6B;color:#fff;padding:28px 16px 24px}
.masthead .in{max-width:1080px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px}
.masthead h1{font-family:var(--display);font-size:clamp(22px,3.4vw,32px);margin:0;line-height:1.35;text-wrap:balance}
.masthead .en{margin:2px 0 0;font-size:13px;letter-spacing:.08em;opacity:.8}
.issue{font-size:13px;text-align:right;line-height:1.6;opacity:.92;font-variant-numeric:tabular-nums}
.sample{max-width:1080px;margin:16px auto 0;padding:0 16px}
.sample p{margin:0;padding:10px 14px;border:1px dashed var(--line);border-radius:6px;font-size:13px;color:var(--muted);background:var(--card)}
.wrap{max-width:1080px;margin:0 auto;padding:24px 16px 48px;display:grid;grid-template-columns:220px 1fr;gap:32px}
nav.toc{position:sticky;top:16px;align-self:start;font-size:13px}
nav.toc h2{font-size:12px;color:var(--muted);letter-spacing:.08em;margin:0 0 8px;font-weight:500}
nav.toc ol{list-style:none;margin:0;padding:0;display:grid;gap:4px}
nav.toc a{display:block;padding:4px 8px;border-left:2px solid var(--line);text-decoration:none;color:var(--ink)}
nav.toc a:hover{border-color:var(--navy);color:var(--navy)}
nav.toc ol ol{padding-left:12px}
main{min-width:0}
section{margin-bottom:40px}
h2.sec{font-family:var(--display);font-size:22px;color:var(--navy);margin:0 0 4px;padding-bottom:6px;border-bottom:2px solid var(--navy);text-wrap:balance}
.lead{color:var(--muted);font-size:13px;margin:6px 0 16px}
h3.sub{font-size:16px;margin:24px 0 10px;display:flex;align-items:center;gap:8px}
h3.sub::before{content:"";width:4px;height:18px;background:var(--k,var(--navy));border-radius:2px}
.highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.hl{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--navy);border-radius:6px;padding:14px}
.hl .tag{font-size:11px;color:var(--muted);letter-spacing:.06em}
.hl p{margin:4px 0 0;font-size:14px;line-height:1.65;font-weight:500}
.items{display:grid;gap:12px}
article{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:16px 18px}
article h4{margin:0 0 6px;font-size:16px;line-height:1.55;text-wrap:balance}
article p{margin:0 0 8px;max-width:68ch}
.meta{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.chip{display:inline-block;font-size:11px;font-weight:700;padding:1px 8px;border-radius:999px;border:1px solid var(--k);color:var(--k)}
.src{font-size:12px;color:var(--muted);word-break:break-all}
.note{font-size:12px;color:var(--muted);background:var(--tint);border-radius:4px;padding:6px 10px;margin-top:8px}
.none{font-size:14px;color:var(--muted);padding:12px 16px;border:1px dashed var(--line);border-radius:6px;background:var(--card)}
.k-sys{--k:var(--c-sys)} .k-ai{--k:var(--c-ai)} .k-sec{--k:var(--c-sec)} .k-reg{--k:var(--c-reg)} .k-jp{--k:var(--navy)} .k-gl{--k:var(--muted)}
ol.sources{padding-left:20px;font-size:13px;word-break:break-all}
ol.sources li{margin-bottom:4px}

.brandbar{background:var(--card);border-bottom:1px solid var(--line);padding:10px 16px}
.brandbar .in{max-width:1080px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand .co{font-family:"Inter",var(--body);font-weight:600;font-size:14px;letter-spacing:.02em;line-height:1.2}
.brand .co small{display:block;font-family:var(--body);font-weight:400;font-size:11px;color:var(--muted);letter-spacing:0}
.gnav{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:13px}
.gnav a{color:var(--ink);text-decoration:none;padding:4px 0;border-bottom:2px solid transparent}
.gnav a:hover,.gnav a[aria-current="page"]{border-color:var(--navy);color:var(--navy)}
.masthead .tagline{margin:10px 0 0;font-size:13px;opacity:.85;max-width:60ch}
.about{display:grid;gap:12px}
.about dl{margin:0;display:grid;grid-template-columns:9em 1fr;gap:8px 16px;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:16px 18px;font-size:14px}
.about dt{color:var(--muted);font-weight:500}
.about dd{margin:0}
.about h3{font-size:15px;margin:12px 0 0;color:var(--navy)}
.about p{margin:0;font-size:14px;max-width:68ch}
.sitefoot{background:#1B3A6B;color:#fff;padding:32px 16px 24px;font-size:13px}
.sitefoot .in{max-width:1080px;margin:0 auto;display:grid;gap:16px}
.sitefoot .row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:flex-start}
.sitefoot a{color:#fff}
.sitefoot .brand{color:#fff}
.sitefoot .brand .co small{color:rgba(255,255,255,.75)}
.sitefoot .desc{margin:0;max-width:52ch;color:rgba(255,255,255,.85);line-height:1.7}
.sitefoot ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.sitefoot .legal{border-top:1px solid rgba(255,255,255,.2);padding-top:12px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;color:rgba(255,255,255,.75);font-size:12px;font-variant-numeric:tabular-nums}
@media (max-width:600px){.about dl{grid-template-columns:1fr;gap:2px}.about dd{margin-bottom:8px}}

@media (max-width:820px){
  .wrap{grid-template-columns:1fr;gap:16px}
  nav.toc{position:static}
  .highlights{grid-template-columns:1fr}
  .issue{text-align:left}
}

.page{max-width:1080px;margin:0 auto;padding:24px 16px 48px}
.cards{display:grid;gap:12px}
.card{display:block;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--navy);border-radius:6px;padding:14px 18px;text-decoration:none;color:var(--ink)}
.card:hover{border-color:var(--navy)}
.card .d{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.card .t{font-weight:700;margin:2px 0}
.card p{margin:0;font-size:13px;color:var(--muted)}
.archive-flag{display:inline-block;margin-top:8px;font-size:12px;background:rgba(255,255,255,.15);padding:2px 10px;border-radius:999px}