/* ヤギ電気 ブログ記事ページ 共通スタイル */
:root{
  --bg:#0a1320; --bg-2:#0e1b2e; --surface:#122740; --surface-2:#16314f;
  --line:#1f3a5c; --text:#e8eef6; --muted:#9db2cc;
  --accent:#2e8bff; --accent-2:#00d4ff; --warm:#ff7a18;
  --radius:14px; --maxw:1140px; --shadow:0 10px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",Meiryo,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:var(--accent-2);text-decoration:none;transition:.2s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
.container{width:90%;max-width:var(--maxw);margin:0 auto}
.eyebrow{font-size:.8rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent-2);font-weight:700}
/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,19,32,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.6rem}
.brand-mark{height:40px;width:40px;border-radius:8px;object-fit:cover;flex:none;border:1px solid var(--line)}
.brand .logo{font-weight:800;font-size:1.25rem;letter-spacing:.02em;color:#fff}
.brand .logo b{color:var(--accent)}
.brand .tag{font-size:.7rem;color:var(--muted);letter-spacing:.12em}
.nav-links{display:flex;gap:1.6rem;list-style:none;align-items:center}
.nav-links a{color:var(--text);font-size:.92rem;font-weight:600}
.nav-links a:hover{color:var(--accent-2)}
.nav-links a.current{color:var(--accent-2)}
.nav-links a.lang{border:1px solid var(--line);border-radius:999px;padding:.3rem .8rem;font-size:.78rem;color:var(--muted)}
.nav-links a.lang:hover{border-color:var(--accent-2);color:var(--accent-2)}
.nav-cta{background:var(--accent);color:#fff !important;padding:.55rem 1.1rem;border-radius:999px;font-weight:700}
.nav-cta:hover{background:var(--accent-2);color:#04263f !important}
.nav-toggle{display:none;background:none;border:0;cursor:pointer}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--text);margin:5px 0;transition:.3s}
/* Article */
.article-hero{position:relative;overflow:hidden;padding:64px 0 40px;
  background:radial-gradient(900px 400px at 85% -20%,rgba(46,139,255,.22),transparent 60%),var(--bg-2);
  border-bottom:1px solid var(--line)}
.article-hero .container{position:relative;z-index:1}
.crumbs{font-size:.82rem;color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--accent-2)}
.article-hero h1{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.4;margin:6px 0 12px;max-width:880px}
.meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.meta .date{color:var(--accent-2);font-weight:700;font-size:.9rem}
.meta .tag{font-size:.74rem;color:var(--accent-2);border:1px solid var(--line);border-radius:999px;padding:.15rem .7rem}
.article{padding:48px 0 72px}
.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:1.4rem;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--accent);line-height:1.4}
.prose h3{font-size:1.15rem;margin:28px 0 10px;color:#fff}
.prose p{color:#cdd9e8;margin:0 0 18px}
.prose ul,.prose ol{color:#cdd9e8;margin:0 0 18px 1.4rem}
.prose li{margin-bottom:6px}
.prose figure{margin:24px 0}
.prose figure img{width:100%;border:1px solid var(--line);border-radius:var(--radius);background:#0b1626}
.prose figure figcaption{color:#6f86a3;font-size:.8rem;text-align:center;margin-top:8px}
.prose .imgrow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.prose .lead{color:var(--muted);font-size:1.05rem}
.prose pre{background:#0b1626;border:1px solid var(--line);border-radius:10px;padding:16px;overflow:auto;margin:0 0 18px;font-size:.85rem}
.prose code{font-family:Consolas,Menlo,monospace}
.article-nav{max-width:760px;margin:48px auto 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px}
.article-nav a{font-size:.9rem}
.back{display:inline-block;margin-top:8px}
/* Footer */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-grid h4{font-size:.95rem;margin-bottom:14px;color:#fff}
.footer-grid ul{list-style:none}
.footer-grid ul li{margin-bottom:8px}
.footer-grid a{color:var(--muted);font-size:.9rem}
.footer-grid a:hover{color:var(--accent-2)}
.footer-grid .desc{color:var(--muted);font-size:.9rem;max-width:340px}
.footer-bottom{border-top:1px solid var(--line);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:.82rem}
@media(max-width:860px){
  .nav-links{position:fixed;inset:72px 0 auto 0;flex-direction:column;gap:0;background:var(--bg-2);border-bottom:1px solid var(--line);padding:10px 0;transform:translateY(-130%);transition:.3s;align-items:stretch}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{padding:0 5%}
  .nav-links a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links a.lang{display:inline-block}
  .nav-toggle{display:block}
  .prose .imgrow{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}