/* 見晴コラム 共有スタイル — LP（夜空×ブルー）のトークンを継承 */
:root{
  --ink:#1b2434;
  --ink-2:#2a3547;
  --muted:#5b6678;
  --subtle:#8593a6;
  --paper:#f6f8fb;
  --surface:#ffffff;
  --surface-2:#eef2f8;
  --line:#e3e8f1;
  --deep:#0b1426;
  --deep-2:#13223f;
  --accent:#2f6df6;
  --accent-ink:#1e56d6;
  --accent-2:#5fb8ff;
  --dawn:#d98b00;
  --shadow:0 24px 70px rgba(11,20,38,.14);
  --display:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Yu Gothic",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.9;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--accent-ink);text-decoration:underline;text-decoration-color:rgba(47,109,246,.35);text-underline-offset:3px}
a:hover{color:var(--accent)}

.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.article-width{width:min(760px,calc(100% - 40px));margin:0 auto}

/* Header — LP/appと同じ夜空トーン */
.site-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(180deg,rgba(11,20,38,.97),rgba(19,34,63,.95));
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(234,241,251,.12);
}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:16px}
.brand{display:inline-flex;align-items:baseline;gap:10px;text-decoration:none}
.brand .wordmark{font-family:var(--display);font-weight:900;font-size:19px;color:#eaf1fb;letter-spacing:.04em}
.brand small{font-size:11px;font-weight:600;color:#93a1bd}
.nav-links{display:flex;align-items:center;gap:20px;font-size:13.5px;font-weight:600}
.nav-links a{color:#c9d5ea;text-decoration:none}
.nav-links a:hover{color:#fff}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:10px 22px;border:1px solid transparent;border-radius:2px;
  font-size:14px;font-weight:700;line-height:1.4;text-decoration:none;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(47,109,246,.35)}
.btn-primary:hover{background:#3d79f8;color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:36px;padding:7px 16px;font-size:13px}
@media (max-width:720px){
  .nav-links a:not(.btn){display:none}
}

/* Breadcrumbs */
.breadcrumbs{padding:18px 0 0;font-size:12.5px;color:var(--subtle)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:var(--subtle)}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--accent)}

/* Article hero — 夜空FV（左=スクリム×文字 / 右=その記事の実写アイキャッチ。アイキャッチと同構図） */
.article-hero{
  position:relative;overflow:hidden;color:#eaf1fb;
  background:linear-gradient(180deg,var(--deep) 0%,var(--deep-2) 100%);
}
.article-hero::before{
  content:"";position:absolute;top:0;bottom:0;right:0;width:58%;
  background:var(--hero-img) center/cover no-repeat;
  pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#0b1426 0%,#0e1a33 48%,rgba(14,26,51,.92) 68%,rgba(14,26,51,.45) 84%,rgba(11,20,38,.05) 100%);
  pointer-events:none;
}
.article-hero > *{position:relative;z-index:1}
.article-hero .breadcrumbs{color:#7c8cab}
.article-hero .breadcrumbs a{color:#a6b4d2}
.article-hero .breadcrumbs li+li::before{color:#5b6c90}
.article-hero .article-head{padding:28px 0 46px}
.article-hero .article-eyebrow{color:#5fb8ff}
.article-hero h1{
  color:#fff;font-family:var(--display);font-weight:900;line-height:1.45;
}
.article-hero .article-meta{color:#8593a6}
.article-hero .article-meta b{color:#b9c6dd}
@media (max-width:760px){
  .article-hero::before{width:100%}
  .article-hero::after{background:linear-gradient(180deg,rgba(11,20,38,.92),rgba(19,34,63,.9))}
  .article-hero .article-head{padding:22px 0 36px}
}

/* Article header */
.article-head{padding:36px 0 8px}
.article-eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 14px;
  color:var(--accent-ink);font-size:12.5px;font-weight:700;
}
.article-eyebrow::before{content:"";width:26px;height:2px;background:currentColor}
h1{margin:0 0 16px;font-size:clamp(26px,4.6vw,38px);line-height:1.4;font-weight:800}
.article-meta{display:flex;flex-wrap:wrap;gap:14px;margin:0 0 8px;font-size:12.5px;color:var(--subtle)}
.article-meta b{font-weight:600;color:var(--muted)}

/* Article body */
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:2px;
  padding:clamp(24px,5vw,48px);
  margin:24px 0 0;
}
.article-body h2{
  margin:2.2em 0 .8em;
  font-size:clamp(20px,3.2vw,26px);line-height:1.45;font-weight:800;
  border-top:1px solid var(--line);padding-top:1.1em;
}
.article-body h2:first-child{margin-top:0;border-top:none;padding-top:0}
.article-body h3{margin:1.8em 0 .6em;font-size:18px;line-height:1.5;font-weight:750}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em}
.article-body li{margin-bottom:.5em}
.article-body strong{font-weight:750}
figure{margin:1.6em 0}
figcaption{margin-top:8px;font-size:12.5px;color:var(--subtle)}

/* Components */
.toc{
  background:var(--surface-2);border:1px solid var(--line);border-radius:2px;
  padding:20px 24px;margin:0 0 2em;
}
.toc b{display:block;margin-bottom:8px;font-size:13.5px;color:var(--ink-2)}
.toc ol{margin:0;padding-left:1.3em;font-size:14px}
.toc a{text-decoration:none;color:var(--accent-ink)}
.point-box{
  border:1px solid rgba(47,109,246,.35);border-left:4px solid var(--accent);
  background:rgba(47,109,246,.05);border-radius:2px;
  padding:18px 22px;margin:0 0 1.6em;
}
.point-box b{display:block;margin-bottom:6px;font-size:13.5px;color:var(--accent-ink);letter-spacing:.02em}
.point-box ul{margin:0;padding-left:1.3em}
.note-box{
  border:1px solid var(--line);border-left:4px solid var(--dawn);
  background:var(--surface-2);border-radius:2px;
  padding:16px 20px;margin:0 0 1.6em;font-size:14px;color:var(--ink-2);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1.6em}
@media (max-width:600px){
  .table-scroll::before{content:"← 横にスクロールできます →";display:block;font-size:11px;color:var(--subtle);margin:0 0 6px;text-align:right}
}
.article-body table{
  border-collapse:separate;border-spacing:0;
  width:100%;min-width:560px;font-size:14px;line-height:1.7;
  background:var(--surface);
  border:1px solid var(--line);border-radius:2px;overflow:hidden;
}
.article-body th,.article-body td{
  padding:11px 16px;text-align:left;vertical-align:top;
  border:0;border-bottom:1px solid #e8edf4;
}
.article-body th{
  background:linear-gradient(135deg,var(--deep-2),#1c3155);
  color:#fff;font-weight:700;white-space:nowrap;
  font-size:13px;letter-spacing:.02em;border-bottom:0;
}
.article-body tbody tr:nth-child(even){background:#f4f7fb}
.article-body tbody tr:last-child td{border-bottom:0}
@media (max-width:600px){
  .article-body table{font-size:13px}
  .article-body th,.article-body td{padding:9px 12px}
}

/* 結論先出し（AI検索向け 40〜80語ブロック） */
.pa-take{
  background:linear-gradient(135deg,var(--deep),var(--deep-2));
  color:#eaf1fb;border-radius:2px;
  padding:24px 26px;margin:2.2em 0 1.6em;
}
.pa-take .lbl{
  display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.05em;
  background:rgba(255,255,255,.16);padding:4px 12px;border-radius:2px;margin:0 0 12px;
}
.pa-take p{margin:0;font-size:15px;line-height:1.9;color:#dce7f7}
.pa-take strong{color:var(--accent-2);font-weight:750}

.pa-steps{display:grid;gap:14px;margin:0 0 1.6em}
.pa-step{
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:2px;
  padding:16px 18px;
}
.pa-step .num{
  width:44px;height:44px;border-radius:2px;
  background:linear-gradient(135deg,var(--deep-2),var(--accent));
  color:#fff;font-size:20px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.pa-step .ttl{margin:2px 0 6px;font-size:15.5px;font-weight:750;color:var(--ink);line-height:1.5}
.pa-step p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-2)}

.pa-vs{display:grid;grid-template-columns:1fr;gap:14px;margin:0 0 1.6em}
@media (min-width:600px){.pa-vs{grid-template-columns:1fr 1fr}}
.pa-vs .col{border-radius:2px;padding:18px;border:1px solid}
.pa-vs .neg{background:#fbf4e6;border-color:#ecd9b0}
.pa-vs .pos{background:#edf3fe;border-color:#c8d9fb}
.pa-vs .cap{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:750;margin:0 0 10px}
.pa-vs .neg .cap{color:#96660f}
.pa-vs .pos .cap{color:var(--accent-ink)}
.pa-vs .cap .dot{width:10px;height:10px;border-radius:50%;flex:none}
.pa-vs .neg .dot{background:var(--dawn)}
.pa-vs .pos .dot{background:var(--accent)}
.pa-vs p{margin:0;font-size:13.5px;line-height:1.8;color:var(--ink-2)}
@media (max-width:600px){
  .pa-take{padding:18px 16px}
  .pa-step{grid-template-columns:38px 1fr;gap:12px;padding:14px 14px}
  .pa-step .num{width:38px;height:38px;font-size:17px}
}

/* CTA */
.article-cta{
  margin:40px 0 0;border-radius:2px;overflow:hidden;
  background:linear-gradient(135deg,var(--deep),var(--deep-2));
  color:#eaf1fb;padding:clamp(28px,5vw,44px);
  text-align:center;
}
.article-cta h2{margin:0 0 10px;font-size:clamp(19px,3vw,24px);font-weight:800;line-height:1.5}
.article-cta p{margin:0 auto 22px;max-width:560px;font-size:14.5px;color:#a9b8d4}
.article-cta .btn-primary{min-width:220px}
.article-cta .cta-sub{display:block;margin-top:12px;font-size:12.5px;color:#93a1bd}

/* Related */
.related{margin:40px 0 0}
.related h2{font-size:18px;font-weight:800;margin:0 0 14px}
.related ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.related a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:2px;
  padding:14px 18px;font-size:14.5px;font-weight:600;color:var(--ink-2);text-decoration:none;
}
.related a:hover{border-color:var(--accent);color:var(--accent-ink)}

/* Column index (list page) */
.page-head{padding:56px 0 8px}
.page-head .eyebrow{color:var(--accent-ink);font-size:13px;font-weight:700;letter-spacing:.08em;margin:0 0 10px}
.page-head .lead{color:var(--muted);font-size:15.5px;max-width:660px}
.article-list{display:grid;gap:16px;margin:32px 0 0}
.card{
  display:grid;grid-template-columns:1fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:2px;
  overflow:hidden;text-decoration:none;color:var(--ink);
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--ink)}
.card-thumb{aspect-ratio:16/9;background:var(--surface-2)}
.card-thumb img{width:100%;height:100%;object-fit:cover}
.card-body{padding:20px 24px}
@media (min-width:680px){
  .card{grid-template-columns:264px 1fr;align-items:center}
  .card-thumb{aspect-ratio:auto;height:100%;min-height:170px}
  .card-body{padding:22px 28px}
}
.card .card-cat{font-size:12px;font-weight:700;color:var(--accent-ink);margin:0 0 6px}
.card h2{margin:0 0 8px;font-size:18px;line-height:1.55;font-weight:750}
.card p{margin:0 0 10px;font-size:13.5px;color:var(--muted);line-height:1.8}
.card time{font-size:12px;color:var(--subtle)}
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:2px;
  padding:40px;text-align:center;color:var(--muted);font-size:14.5px;margin:32px 0 0;
}

/* Footer */
footer{margin-top:72px;background:var(--deep);color:#8593a6;padding:40px 0 32px;font-size:12.5px}
.footer-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.footer-brand{font-family:var(--display);font-weight:900;color:#eaf1fb;font-size:15px;letter-spacing:.04em}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:#a9b8d4;text-decoration:none}
.footer-links a:hover{color:#fff}
.disclaimer{margin:6px 0 0;line-height:1.8}

main{padding-bottom:72px}

/* 記事内 資料DLコールアウト（メールゲート導入後に使用） */
.dl-callout{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin:26px 0;padding:20px 22px;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:2px;background:linear-gradient(180deg,#f0f5fe,#ffffff)}
.dl-callout-eyebrow{margin:0 0 4px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent-ink)}
.dl-callout-title{margin:0 0 4px;font-size:15px;font-weight:600;color:var(--ink);line-height:1.4}
.dl-callout-desc{margin:0;font-size:13px;color:var(--muted);line-height:1.6}
.dl-callout .btn{flex-shrink:0;white-space:nowrap}
@media(max-width:560px){.dl-callout{padding:18px}.dl-callout .btn{width:100%;text-align:center}}