:root{
  --ink:#1f2733;
  --navy:#16324a;
  --navy-deep:#0c2033;
  --steel:#4a6f8c;
  --brass:#a9822f;
  --paper:#f6f4ee;
  --white:#fff;
  --line:#dde1e2;
  --muted:#5b6673;
  --sans:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --serif:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:8.5rem}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.95;letter-spacing:.02em;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--navy);text-underline-offset:.2em}
a:hover{color:var(--steel)}
.skip-link{position:fixed;left:1rem;top:-5rem;background:#fff;padding:.6rem 1.1rem;z-index:999;border-radius:4px}
.skip-link:focus{top:1rem}

/* PR notice */
.pr-notice{margin:0;padding:8px 26px;background:#eef1f0;color:var(--muted);font-size:.72rem;text-align:center;border-bottom:1px solid var(--line)}

/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,238,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand-row{max-width:1180px;min-height:76px;margin:auto;padding:12px 26px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy-deep);line-height:1.2}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--brass);border-radius:50%;font-size:1.2rem;color:var(--brass)}
.brand strong{font-family:var(--serif);font-size:1.08rem;letter-spacing:.07em}
.brand small{display:block;color:var(--muted);font-size:.52rem;letter-spacing:.14em;margin-top:4px}
.menu-toggle{display:none;width:44px;height:40px;padding:8px;border:1px solid var(--line);background:#fff;border-radius:4px;cursor:pointer}
.menu-toggle span{display:block;height:1px;background:var(--navy-deep);margin:5px;transition:transform .2s,opacity .2s}
.global-nav{border-top:1px solid var(--line)}
.global-nav ul{max-width:1180px;margin:auto;padding:0 18px;display:flex;justify-content:center;list-style:none;flex-wrap:wrap}
.global-nav a{display:block;padding:11px 11px;color:var(--ink);font-size:.73rem;text-decoration:none;border-bottom:3px solid transparent;white-space:nowrap}
.global-nav a:hover,.global-nav a[aria-current=page]{border-color:var(--brass);color:var(--navy)}

/* hero */
.hero-block{position:relative;max-width:1440px;margin:auto;background:var(--navy-deep);min-height:460px;display:grid;align-items:end;overflow:hidden}
.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero-block:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,22,36,.92),rgba(22,50,74,.55) 58%,rgba(22,50,74,.18))}
.hero-copy{position:relative;z-index:1;color:#fff;width:min(1120px,calc(100% - 48px));margin:0 auto;padding:76px 0 58px}
.eyebrow{margin:0 0 14px;color:#e7cd94;font-size:.7rem;font-weight:700;letter-spacing:.22em}
.hero-copy h1{font-family:var(--serif);font-size:clamp(1.9rem,4.2vw,3.6rem);line-height:1.55;letter-spacing:.04em;margin:0 0 18px;max-width:920px;text-shadow:0 3px 18px rgba(0,0,0,.6),0 1px 3px rgba(0,0,0,.65)}
.hero-copy>p:last-child{max-width:760px;font-size:1.02rem;margin:0;text-shadow:0 2px 10px rgba(0,0,0,.55)}

.container{width:min(1120px,calc(100% - 48px));margin:auto}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:64px;align-items:start;padding-top:70px;padding-bottom:90px}
.article{min-width:0}
.article>section{margin:0 0 62px}
.article h2{font-family:var(--serif);font-size:clamp(1.4rem,2.3vw,1.85rem);line-height:1.6;letter-spacing:.03em;margin:0 0 22px;padding-left:20px;border-left:4px solid var(--brass)}
.article h3{font-family:var(--serif);line-height:1.6;margin:1.6em 0 .8em}
.article p{margin:0 0 1.3em}
.article ul,.article ol{margin:0 0 1.3em;padding-left:1.4em}
.article li{margin-bottom:.5em}
.updated{color:var(--muted);font-size:.82rem;margin:-6px 0 26px}
.notice-box{background:#eef2f3;border:1px solid #d7dee0;border-left:4px solid var(--brass);padding:18px 20px;margin:0 0 1.6em;font-size:.9rem;border-radius:2px}
.notice-box strong{display:block;font-family:var(--serif);margin-bottom:.4em;color:var(--navy-deep)}

/* compare table */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 .6em;border:1px solid var(--line);border-radius:6px}
.compare-table{width:100%;min-width:760px;border-collapse:collapse;font-size:.86rem;background:#fff}
.compare-table caption{text-align:left;padding:12px 14px;font-family:var(--serif);font-size:.95rem;color:var(--navy-deep);background:#eef2f3}
.compare-table th,.compare-table td{border:1px solid var(--line);padding:.75em .85em;text-align:left;vertical-align:top;white-space:normal}
.compare-table thead th{background:var(--navy);color:#fff;font-family:var(--serif);font-weight:600;position:sticky;top:0}
.compare-table tbody th[scope=row]{background:#eef2f3;font-family:var(--serif);font-weight:600;color:var(--navy-deep);min-width:9em}
.compare-table tbody tr:nth-child(even){background:#f8f9f7}
.table-note{color:var(--muted);font-size:.78rem;margin:0 0 1.6em}

/* sidebar */
.sidebar{position:sticky;top:150px;display:grid;gap:24px}
.sidebar nav,.ad-slot{background:#fff;border:1px solid var(--line);padding:24px;border-radius:6px}
.sidebar h2{font-family:var(--serif);font-size:1rem;margin:0 0 14px;color:var(--navy-deep)}
.sidebar ol{margin:0;padding-left:1.15rem}
.sidebar li+li{margin-top:9px}
.sidebar a{font-size:.84rem}
.ad-slot span{display:block;color:var(--muted);font-size:.58rem;letter-spacing:.16em;border-bottom:1px solid var(--line);margin-bottom:14px}
.ad-slot strong{display:block;font-family:var(--serif);line-height:1.55;color:var(--navy-deep)}
.ad-slot p{font-size:.78rem;line-height:1.65}
.ad-slot>a{display:inline-block;background:var(--navy);color:#fff;padding:9px 16px;text-decoration:none;border-radius:3px;margin-top:4px}
.ad-slot>a:hover{background:var(--steel)}
.sidebar-links{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.sidebar-links a{display:block;font-size:.83rem}

/* related */
.related{border-top:1px solid var(--line);padding-top:52px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-grid article{background:#fff;border:1px solid var(--line);padding:22px;border-radius:6px}
.related-grid h3{font-size:1rem;margin:0 0 10px;font-family:var(--serif)}
.related-grid p{font-size:.8rem;line-height:1.65;margin:0;color:var(--muted)}
.related-sites{background:#eef2f3;padding:30px;margin-top:48px;border-radius:6px}
.related-sites ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.related-sites a{display:flex;align-items:baseline;gap:16px;text-decoration:none}
.related-sites strong{min-width:150px;color:var(--navy-deep)}
.related-sites span{font-size:.78rem;color:var(--muted)}

/* index page cards */
.intro-block{max-width:820px;margin:0 auto 12px}
.intro-block h2{font-family:var(--serif);font-size:clamp(1.5rem,2.6vw,2.05rem);letter-spacing:.04em}
.page-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px}
.page-grid article{background:#fff;border-top:3px solid var(--brass);padding:22px;border-radius:2px 6px 6px 2px}
.page-grid article.is-compare{background:#f2f6f5;border-top-color:var(--navy)}
.page-grid span{font-size:.66rem;color:var(--muted);letter-spacing:.1em}
.page-grid .compare-badge{display:inline-block;margin-left:8px;padding:2px 7px;background:var(--navy);color:#fff;border-radius:3px;font-size:.6rem;letter-spacing:.06em}
.page-grid h3{margin:5px 0 10px;font-family:var(--serif);font-size:1.06rem}
.page-grid p{font-size:.84rem;line-height:1.75;margin:0;color:#40484f}

/* map (page-07 hub) */
.map-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:0 0 1.6em}
.map-grid article{border:1px solid var(--line);border-radius:6px;padding:18px 20px;background:#fff}
.map-grid h3{margin:0 0 8px;font-family:var(--serif);font-size:1rem}
.map-grid p{font-size:.85rem;margin:0 0 .6em;color:#40484f}

/* footer */
.site-disclaimer{max-width:1120px;margin:0 auto;padding:0 24px}
.site-disclaimer p{font-size:.74rem;color:var(--muted);background:#eef2f3;border:1px solid var(--line);border-radius:4px;padding:12px 16px;line-height:1.8}
.site-footer{background:var(--navy-deep);color:#dbe3e8;padding:40px 24px 22px}
.footer-grid{max-width:1120px;margin:auto;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px}
.footer-grid h2{font-family:var(--serif);font-size:1rem;color:#fff;margin:0 0 14px}
.footer-grid p{font-size:.78rem;max-width:380px;color:#b9c6cd}
.footer-grid nav{display:flex;flex-direction:column;align-items:flex-start}
.footer-grid a{color:#dbe3e8;font-size:.8rem;margin-bottom:8px;text-decoration:none}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-note{max-width:1120px;margin:26px auto 0;font-size:.72rem;color:#9fb0b8;line-height:1.9;border-top:1px solid #274257;padding-top:18px}
.footer-links{max-width:1120px;margin:20px auto 0;padding-top:18px;border-top:1px solid #274257;display:flex;flex-wrap:wrap;gap:1rem}
.footer-links a{color:#dbe3e8;font-size:.78rem;text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline}
.copyright{max-width:1120px;margin:18px auto 0;font-size:.65rem;color:#7f939c}
.no-scroll{overflow:hidden}

@media(max-width:800px){
  html{scroll-padding-top:5rem}
  .brand-row{min-height:64px;padding:10px 18px}
  .brand strong{font-size:.9rem}
  .brand small{font-size:.46rem}
  .menu-toggle{display:block}
  .global-nav{display:none;position:fixed;left:0;right:0;top:64px;height:calc(100vh - 64px);background:var(--paper);overflow:auto}
  .global-nav.is-open{display:block}
  .global-nav ul{display:block;padding:14px 22px}
  .global-nav a{font-size:.92rem;padding:14px 7px;border-bottom:1px solid var(--line)}
  .hero-block{min-height:420px}
  .hero-copy{width:calc(100% - 36px);padding:60px 0 42px}
  .hero-copy h1{font-size:clamp(1.7rem,9vw,2.3rem);overflow-wrap:anywhere}
  .hero-copy>p:last-child{font-size:.9rem}
  .container{width:calc(100% - 36px)}
  .content-layout{grid-template-columns:1fr;gap:40px;padding-top:48px;padding-bottom:64px}
  .article>section{margin-bottom:52px}
  .article h2{font-size:1.35rem}
  .sidebar{position:static;grid-row:1}
  .related-grid,.page-grid,.map-grid{grid-template-columns:1fr}
  .related-sites{padding:22px}
  .related-sites a{display:block}
  .related-sites strong,.related-sites span{display:block}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid p{margin-bottom:0}
}
@media(max-width:420px){
  body{font-size:15px}
  .brand-mark{display:none}
  .hero-block{min-height:390px}
  .hero-copy{padding-top:52px}
  .sidebar nav,.ad-slot{padding:18px}
  .article h2{padding-left:14px}
}

/* LATEST-COMMENTARY:START */
.latest-commentary {
  padding: 3rem 0;
}
/* .container を持たないサイトでも端に張り付かないための保険。
   :where() は詳細度0なので、サイト側の .container 定義が常に優先される。 */
:where(.latest-commentary .container) {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1rem;
}
.latest-commentary h2 {
  margin-bottom: 1.25rem;
}
.latest-commentary-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.latest-commentary-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line, #e5e5e5);
}
.latest-commentary-list time {
  flex: 0 0 auto;
  color: var(--muted, #666);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}
.latest-commentary-list a {
  flex: 1 1 16rem;
  min-width: 0;
  color: var(--ink, #222);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.latest-commentary-list a:hover {
  color: #0b5;
  text-decoration: underline;
}
.latest-commentary-more {
  margin-top: 1.25rem;
}
.latest-commentary-more a {
  color: #0b5;
  text-decoration: none;
  font-weight: 600;
}
.latest-commentary-more a:hover {
  text-decoration: underline;
}
@media (max-width: 600px) {
  .latest-commentary-list li {
    flex-direction: column;
    gap: 0.2rem;
  }
  /* 縦積み時に flex-basis(16rem) が高さに効かないよう auto に戻す */
  .latest-commentary-list a,
  .latest-commentary-list time {
    flex: 0 0 auto;
  }
}
/* LATEST-COMMENTARY:END */

/* HEADING-WRAP:START 見出し最終行孤立文字対策 (AGENTS.md NoGo) */
h1,h2,h3,h4,.hero-title,.page-title,.card-title{text-wrap:balance;word-break:auto-phrase;line-break:strict;overflow-wrap:break-word}
/* HEADING-WRAP:END */