/* ================================================================
   REVEALER JP v1 — Editorial Journal Design System
   Based on: V2_editorial-journal.html (2026-08-14)
   Palette: warm paper #FBFBFA / ink #1A1A1A / brand red #C7000B
   Type: Noto Sans JP (body) · Noto Serif JP (display) · Roboto Condensed (numerals)
   ================================================================ */

:root{
  --bg:#FBFBFA;
  --surface:#FDFDFB;
  --brand:#C7000B;
  --brand-hover:#A30009;
  --brand-soft:#FDEBEC;
  --ink:#1A1A1A;
  --ink-2:#6B6B6B;
  --ink-3:#9A9A9A;
  --line:#EAEAEA;
  --line-strong:#D8D8D8;
  --ease:cubic-bezier(0.16,1,0.3,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans JP',sans-serif;
  color:var(--ink);background:var(--bg);
  line-height:1.8;-webkit-font-smoothing:antialiased;
  font-feature-settings:"palt";
}
.serif{font-family:'Noto Serif JP',serif}
.num{font-family:'Roboto Condensed',sans-serif;font-variant-numeric:tabular-nums}
.container{max-width:1180px;margin:0 auto;padding:0 48px}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:2px}
img{display:block;max-width:100%}

/* ---------- Nav ---------- */
nav{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1180px;margin:0 auto;padding:0 48px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-logo{font-weight:700;font-size:17px;letter-spacing:-0.02em;display:flex;align-items:center;gap:8px}
.nav-logo .mark{width:22px;height:21px;display:inline-block;vertical-align:-4px;margin-right:6px}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{font-size:13px;color:var(--ink-2);transition:color .2s var(--ease)}
.nav-links a:hover{color:var(--brand)}
.nav-links a.active{color:var(--brand);font-weight:500}
.nav-cta{display:none}
.nav-toggle{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--ink);padding:4px 8px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:9px 18px;font-size:13px;font-weight:500;border-radius:5px;transition:all .2s var(--ease);border:none;cursor:pointer;white-space:nowrap}
.btn:active{transform:scale(0.98)}
.btn-primary{background:var(--ink);color:var(--bg)}
.btn-primary:hover{background:var(--brand)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- Hero (editorial manifesto) ---------- */
.hero{padding:110px 0 80px;border-bottom:1px solid var(--line)}
.kicker{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--brand);font-weight:500}
.hero h1{font-family:'Noto Serif JP',serif;font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.4;letter-spacing:-0.01em;margin-top:20px}
.hero .lead{margin-top:28px;font-size:15px;color:var(--ink-2);max-width:54ch;line-height:2}
.hero .cta-row{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-meta{margin-top:64px;display:flex;gap:56px;flex-wrap:wrap}
.hero-meta .m .v{font-family:'Roboto Condensed',sans-serif;font-size:30px;font-weight:700;line-height:1.1}
.hero-meta .m .v .unit{font-size:0.58em;color:var(--brand);font-weight:400;margin-left:2px}
.hero-meta .m .l{font-size:12px;color:var(--ink-2);margin-top:4px}

/* ---------- Inner hero (sub pages) ---------- */
.inner-hero{padding:72px 0 56px;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:12px;color:var(--ink-3);margin-bottom:28px;display:flex;gap:8px}
.breadcrumb a{color:var(--ink-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.inner-hero h1{font-family:'Noto Serif JP',serif;font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.35;letter-spacing:-0.01em}
.inner-hero .lead{margin-top:20px;font-size:15px;color:var(--ink-2);max-width:60ch;line-height:2}

/* ---------- Section ---------- */
section{scroll-margin-top:64px}
.sec{padding:96px 0}
.sec-head{margin-bottom:48px}
.sec-head .kicker{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--brand);font-weight:500}
.sec-head h2{font-family:'Noto Serif JP',serif;font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.4;margin-top:12px}
.sec-head .sub{color:var(--ink-2);font-size:14px;margin-top:12px;max-width:60ch;line-height:1.9}
.sec-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- Bento product grid (home) ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.bento-cell{border:1px solid var(--line);background:var(--surface);border-radius:8px;overflow:hidden;transition:border-color .3s var(--ease),transform .3s var(--ease);display:flex}
.bento-cell:hover{border-color:var(--brand)}
.bento-cell{min-height:280px;flex-direction:column}
.bento-cell .thumb{overflow:hidden;flex:1;aspect-ratio:16/10}
.bento-cell .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.bento-cell:hover .thumb img{transform:scale(1.03)}
.bento-cell .body{padding:28px;display:flex;flex-direction:column;justify-content:center}
.bento-cell .body{flex:1}
.bento-cell .cat{font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:var(--brand)}
.bento-cell h3{font-family:'Noto Serif JP',serif;font-size:21px;font-weight:700;margin-top:8px;line-height:1.4}
.bento-cell p{font-size:13px;color:var(--ink-2);margin-top:8px;line-height:1.8}
.bento-cell .more{margin-top:14px;font-size:13px;color:var(--brand);font-weight:500}

/* ---------- Index list (applications / product rows) ---------- */
.index-list{border-top:1px solid var(--line)}
.index-row{display:flex;justify-content:space-between;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:padding-left .25s var(--ease),color .2s var(--ease)}
a.index-row:hover{padding-left:14px}
.index-row .name{font-size:15px;font-weight:500;display:flex;align-items:baseline;gap:14px}
.index-row .name .no{font-family:'Roboto Condensed',sans-serif;font-size:13px;color:var(--ink-3);letter-spacing:0.05em}
.index-row .name small{display:block;font-size:12px;color:var(--ink-2);font-weight:400;margin-top:2px}
.index-row .arrow{color:var(--brand);font-size:16px;transition:transform .2s var(--ease);flex-shrink:0}
.index-row:hover .arrow{transform:translateX(4px)}
.index-row .tag{font-size:11px;letter-spacing:0.08em;color:var(--brand);border:1px solid var(--brand);border-radius:3px;padding:2px 8px;white-space:nowrap;flex-shrink:0}

/* ---------- Video cards ---------- */
.video-row{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.video-item .thumb{aspect-ratio:16/9;background:var(--ink);border-radius:4px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.video-item .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .3s var(--ease),transform .4s var(--ease)}
.video-item:hover .thumb img{opacity:1;transform:scale(1.03)}
.video-item .thumb .play{position:relative;z-index:1;width:44px;height:44px;border-radius:50%;background:var(--brand);display:flex;align-items:center;justify-content:center;color:var(--bg);font-size:13px;transition:transform .25s var(--ease)}
.video-item:hover .play{transform:scale(1.1)}
.video-item h4{font-size:14px;font-weight:500;margin-top:14px;line-height:1.7;transition:color .2s var(--ease)}
.video-item:hover h4{color:var(--brand)}
.video-item .meta{font-size:12px;color:var(--ink-2);margin-top:6px}
/* 動画ライトボックス */
.video-lightbox{position:fixed;inset:0;background:rgba(26,26,26,.92);display:flex;align-items:center;justify-content:center;z-index:999;opacity:0;pointer-events:none;transition:opacity .25s var(--ease)}
.video-lightbox.open{opacity:1;pointer-events:auto}
.video-lightbox .lb-frame{position:relative;width:min(960px,92vw);aspect-ratio:16/9;background:var(--ink);border-radius:6px;overflow:hidden;box-shadow:0 24px 80px rgba(26,26,26,.45)}
.video-lightbox iframe{width:100%;height:100%;border:0}
.video-lightbox .lb-close{position:absolute;top:-44px;right:0;color:var(--bg);font-size:28px;line-height:1;cursor:pointer;background:none;border:none;padding:6px}
.video-lightbox .lb-close:hover{color:var(--brand)}

/* ---------- Logo wall ---------- */
.logos{padding:64px 0;border-top:1px solid var(--line)}
.logo-grid{display:flex;flex-wrap:wrap;gap:24px 40px;align-items:center;justify-content:center}
.logo-grid img{max-height:30px;width:auto;opacity:0.55;filter:grayscale(100%);transition:all .3s var(--ease)}
.logo-grid img:hover{opacity:1;filter:grayscale(0%)}

/* ---------- News ---------- */
.news-item{display:grid;grid-template-columns:90px 130px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);align-items:baseline}
.news-item .date{font-family:'Roboto Condensed',sans-serif;color:var(--ink-2);font-size:13px}
.news-item .cat{font-size:11px;letter-spacing:0.1em;text-transform:uppercase;color:var(--brand)}
.news-item a{font-size:14px;transition:color .2s var(--ease)}
.news-item a:hover{color:var(--brand)}

/* ---------- Specs table ---------- */
.specs-table{border-top:1px solid var(--line);max-width:860px}
.spec-row{display:grid;grid-template-columns:minmax(120px,168px) minmax(0,1fr);gap:14px;padding:10px 4px;border-bottom:1px solid var(--line);align-items:baseline}
.spec-row .spec-label{font-size:12px;color:var(--ink-2);line-height:1.7;min-width:0}
.spec-row .spec-value{font-family:'Roboto Condensed',sans-serif;font-size:15px;font-weight:500;line-height:1.65;min-width:0;overflow-wrap:anywhere;word-break:break-word}
.specs-table--quick .spec-row{padding:13px 4px}
.specs-table--quick .spec-row .spec-value{font-size:17px;font-weight:600}
.spec-group-title{margin:26px 0 6px;font-size:12px;letter-spacing:0.12em;text-transform:uppercase;color:var(--brand);font-weight:600}
.spec-group-title:first-child{margin-top:0}

/* ---------- Application detail blocks (applications.html) ---------- */
.app-block{border-top:1px solid var(--line-strong);padding:52px 0;display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.app-block:last-child{border-bottom:1px solid var(--line-strong)}
.app-block .app-head .no{font-family:'Roboto Condensed',sans-serif;font-size:14px;color:var(--ink-3);letter-spacing:0.1em}
.app-block h3{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:700;margin:8px 0 16px;line-height:1.4}
.app-block .desc{font-size:14px;color:var(--ink-2);line-height:2}
.app-block .rec{margin-top:20px;font-size:13px}
.app-block .rec .rec-label{font-size:11px;letter-spacing:0.1em;color:var(--ink-3);display:block;margin-bottom:6px}
.app-block .rec .rec-val{color:var(--brand);font-weight:500}
.app-block .thumb{aspect-ratio:16/10;background:var(--surface);border:1px solid var(--line);border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12px;overflow:hidden}
.app-block .thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- FAQ ---------- */
.faq-group{margin-bottom:64px}
.faq-group .group-title{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--brand);font-weight:500;margin-bottom:8px}
.faq-group h2{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:700;margin-bottom:28px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-of-type{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 4px;background:none;border:none;cursor:pointer;text-align:left;font-family:inherit}
.faq-q .q-text{font-size:14.5px;font-weight:500;line-height:1.7}
.faq-q .q-ind{position:relative;width:20px;height:20px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;color:var(--brand)}
.faq-q .q-ind::before{content:'▾';position:absolute;font-size:15px;line-height:1;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.faq-q .q-ind::after{content:'−';position:absolute;font-size:20px;line-height:1;font-weight:300;opacity:0;transform:scale(.5);transition:opacity .2s var(--ease),transform .2s var(--ease)}
.faq-item.open .q-ind::before{opacity:0;transform:scale(.5)}
.faq-item.open .q-ind::after{opacity:1;transform:scale(1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a .a-inner{padding:0 4px 22px;font-size:13.5px;color:var(--ink-2);line-height:2}
.faq-a .a-inner ul{padding-left:1.2em;margin-top:8px}
.faq-a .a-inner li{margin-bottom:6px}

/* ---------- Testimonials ---------- */
.tst-row{border-top:1px solid var(--line);padding:48px 0;display:grid;grid-template-columns:320px 1fr;gap:56px}
.tst-row:last-of-type{border-bottom:1px solid var(--line)}
.tst-quote{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:500;line-height:1.8;letter-spacing:0.01em}
.tst-quote::before{content:"“";color:var(--brand);font-size:1.3em;line-height:0;vertical-align:-0.35em;margin-right:4px}
.tst-body .tst-meta{display:flex;align-items:baseline;gap:16px;margin-bottom:14px;flex-wrap:wrap}
.tst-body .tst-org{font-size:13px;color:var(--ink-2)}
.tst-body .tst-name{font-size:13px;color:var(--ink-3)}
.tst-body .tst-product{font-size:12px;letter-spacing:0.06em;color:var(--brand);margin-top:16px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:72px;align-items:start}
.form-group{margin-bottom:26px}
.form-group label{display:block;font-size:13px;font-weight:500;margin-bottom:8px}
.form-group label .req{color:var(--brand)}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:11px 14px;font-size:14px;font-family:inherit;color:var(--ink);
  background:var(--surface);border:1px solid var(--line-strong);border-radius:4px;transition:border-color .2s var(--ease);
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--brand)}
.form-group textarea{min-height:150px;resize:vertical;line-height:1.8}
.form-note{font-size:12px;color:var(--ink-3);margin-top:14px}
.contact-info h3{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:700;line-height:1.6;margin-bottom:18px}
.contact-info .lead{font-size:13.5px;color:var(--ink-2);line-height:2;margin-bottom:32px}
.contact-detail{display:grid;grid-template-columns:90px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.contact-detail .cd-label{color:var(--ink-3);font-size:12px;letter-spacing:0.08em}
.demo-box{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:32px;margin-top:40px}
.demo-box h4{font-family:'Noto Serif JP',serif;font-size:18px;font-weight:700;margin-bottom:12px}
.demo-box ul{list-style:none;margin-top:16px}
.demo-box li{font-size:13px;color:var(--ink-2);padding:7px 0;border-bottom:1px solid var(--line);display:flex;gap:10px}
.demo-box li:last-child{border-bottom:none}
.demo-box li .d{color:var(--brand)}

/* ---------- Document (privacy / prose) ---------- */
.doc{max-width:760px}
.doc h2{font-family:'Noto Serif JP',serif;font-size:20px;font-weight:700;margin:56px 0 16px;line-height:1.5}
.doc h2:first-child{margin-top:0}
.doc p{font-size:14px;color:var(--ink-2);line-height:2.1;margin-bottom:14px}
.doc ul{padding-left:1.2em;margin-bottom:14px}
.doc li{font-size:14px;color:var(--ink-2);line-height:2}
.doc .updated{font-family:'Roboto Condensed',sans-serif;font-size:13px;color:var(--ink-3);margin-bottom:40px}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.about-text p{font-size:14px;color:var(--ink-2);line-height:2.1;margin-bottom:16px}
.about-text .lead{font-size:15px;color:var(--ink)}
.about-visual{aspect-ratio:4/3;background:var(--surface);border:1px solid var(--line);border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12px}
.check-list{list-style:none;margin-top:8px}
.check-list li{display:flex;gap:12px;padding:12px 0;font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line);align-items:baseline}
.check-list li:last-child{border-bottom:none}
.check-list .ck{color:var(--brand);font-weight:700}

/* ---------- CTA ---------- */
.cta{background:var(--ink);color:var(--bg);padding:96px 0}
.cta h2{font-family:'Noto Serif JP',serif;font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.5}
.cta p{font-size:14px;color:rgba(251,251,250,0.72);margin-top:16px;line-height:2;max-width:58ch}
.cta .cta-row{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.cta .btn-primary{background:var(--brand)}
.cta .btn-primary:hover{background:var(--bg);color:var(--brand)}
.cta .btn-ghost{color:var(--bg);border-color:rgba(251,251,250,0.38)}
.cta .btn-ghost:hover{border-color:var(--bg);color:var(--bg)}
.cta .cta-note{font-size:12px;color:rgba(251,251,250,0.52);margin-top:20px}

/* ---------- Footer ---------- */
footer{padding:64px 0 48px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1.5fr 1fr 1fr;gap:40px}
.foot-brand{font-weight:700;font-size:15px}
.foot-brand .mark{width:20px;height:19px;display:inline-block;vertical-align:-3px;margin-right:8px}
.foot-brand p{font-weight:400;font-size:13px;color:var(--ink-2);margin-top:12px;line-height:1.9;max-width:34ch}
.foot-col h4{font-size:12px;font-weight:700;margin-bottom:14px}
.foot-col a{display:block;font-size:13px;color:var(--ink-2);padding:4px 0;transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12px;color:var(--ink-2);flex-wrap:wrap;gap:8px}
.foot-bottom .langs{display:flex;gap:18px}
.foot-bottom .langs a{transition:color .2s var(--ease)}
.foot-bottom .langs a:hover{color:var(--brand)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .app-block,.about-grid{grid-template-columns:1fr;gap:32px}
  .tst-row{grid-template-columns:1fr;gap:24px}
  .contact-grid{grid-template-columns:1fr;gap:56px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:768px){
  .container,.nav-inner{padding-left:24px;padding-right:24px}
  .nav-links{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    flex-direction:column;padding:16px 24px 24px;gap:0;
  }
  .nav-links.open{display:flex}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links a{display:block;padding:14px 0;font-size:15px}
  .nav-toggle{display:block}
  .hero{padding:80px 0 60px}
  .inner-hero{padding:56px 0 44px}
  .sec{padding:72px 0}
  .bento{grid-template-columns:1fr}
  .bento-cell{grid-column:auto;flex-direction:column}
  .bento-cell .thumb{width:100%;aspect-ratio:16/9}
  .video-row{grid-template-columns:1fr}
  .news-item{grid-template-columns:80px 1fr;gap:8px 16px}
  .news-item .cat{grid-column:2;grid-row:1}
  .index-row .name{flex-wrap:wrap}
  .spec-row{grid-template-columns:118px 1fr;padding:10px 0}
  .specs-table{max-width:none}
  .hero-meta{gap:36px}
  .foot-grid{grid-template-columns:1fr}
}

/* ---------- v2 编辑器新增组件（2026-08-18，token 化，勿改动上方既有规则） ---------- */
.compare-wrap{overflow-x:auto}
.compare-table{width:100%;border-collapse:collapse;border-top:1px solid var(--line-strong);font-size:14px}
.compare-table th,.compare-table td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:baseline}
.compare-table thead th{font-size:12px;letter-spacing:0.08em;text-transform:uppercase;color:var(--ink-2);font-weight:500}
.compare-table tbody th{font-weight:500;color:var(--ink-2);font-size:13px;white-space:nowrap}
.compare-table td{font-family:'Roboto Condensed',sans-serif;font-size:15px}
.stat-card{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:32px;text-align:center}
.stat-card .stat-num{font-family:'Roboto Condensed',sans-serif;font-size:44px;font-weight:700;line-height:1.1;color:var(--ink)}
.stat-card .stat-unit{font-size:0.5em;color:var(--brand);font-weight:400;margin-left:4px}
.stat-card .stat-label{font-size:13px;color:var(--ink-2);margin-top:10px}
.media-text .mt-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.media-text .mt-media{margin:0;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--surface)}
.media-text .mt-media img{width:100%;display:block}
.media-text .mt-empty{display:flex;align-items:center;justify-content:center;aspect-ratio:16/10;color:var(--ink-3);font-size:12px}
.media-text .mt-body h3{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:700;line-height:1.5;margin-bottom:14px}
.media-text .mt-body p{font-size:14px;color:var(--ink-2);line-height:2}
.video-wrap .video-frame{width:100%;border-radius:4px;overflow:hidden;background:var(--ink)}
.video-wrap .video-frame iframe{width:100%;height:100%;display:block;border:0}
.video-wrap .video-empty{display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12px}
@media(max-width:900px){
  .media-text .mt-grid{grid-template-columns:1fr;gap:28px}
}

/* ===== Product series accordion (2026-08-20) ===== */
details.series{border-top:1px solid var(--line)}
details.series+details.series{border-top:none}
details.series summary{display:flex;align-items:baseline;gap:14px;padding:20px 0;cursor:pointer;list-style:none;border-bottom:1px solid var(--line);transition:padding-left .25s var(--ease)}
details.series summary::-webkit-details-marker{display:none}
details.series summary:hover{padding-left:8px}
details.series summary::after{content:'▾';margin-left:auto;color:var(--brand);font-size:15px;font-weight:400;transition:transform .25s var(--ease);flex-shrink:0}
details.series[open] summary::after{content:'−';font-size:20px;font-weight:300}
details.series .series-name{font-family:'Noto Serif JP',serif;font-size:20px;font-weight:700;white-space:nowrap}
details.series .series-count{font-family:'Roboto Condensed',sans-serif;font-size:13px;color:var(--ink-3);margin-left:4px}
details.series .series-specs{font-size:13px;color:var(--ink-2);flex:1;min-width:0;white-space:normal}
details.series .series-tag{font-size:11px;letter-spacing:0.08em;color:var(--brand);border:1px solid var(--brand);border-radius:3px;padding:2px 8px;white-space:nowrap;flex-shrink:0}
details.series[open] .index-list{border-top:none}
@media (max-width:640px){
  details.series summary{flex-wrap:wrap;row-gap:6px}
  details.series .series-specs{order:3;width:100%;white-space:normal}
}

/* products.html: シリーズ間隔 + 子製品インデント（2026-08-22） */
.products-index details.series{margin-top:48px}
.products-index details.series:first-of-type{margin-top:0}
.products-index .index-list{margin-left:2em}
@media (max-width:640px){
  .products-index details.series{margin-top:32px}
  .products-index .index-list{margin-left:1.25em}
}

/* ===== 首页视觉增强：Hero 主视觉 + アプリケーション图片网格（2026-08-21） ===== */
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,0.98fr);gap:48px;align-items:center}
.hero-visual{margin:0;border:1px solid var(--line);border-radius:4px;overflow:hidden;background:#fff;width:100%;max-width:560px;min-width:0;justify-self:end}
.hero-img-wrap{position:relative;aspect-ratio:5/4;overflow:hidden;background:#fff}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.hero-caption{padding:10px 14px;font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:var(--ink-3);border-top:1px solid var(--line)}
.hero-grid .hero-meta{grid-column:1/-1;margin-top:8px}

.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.app-card{border:1px solid var(--line);background:var(--bg);border-radius:8px;overflow:hidden;transition:border-color .3s var(--ease)}
.app-card:hover{border-color:var(--brand)}
.app-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--ink)}
.app-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.app-card:hover .thumb img{transform:scale(1.03)}
.app-card .body{display:flex;align-items:center;gap:12px;padding:16px 18px}
.app-card .no{font-family:'Roboto Condensed',sans-serif;font-size:13px;color:var(--ink-3);letter-spacing:0.05em}
.app-card .names{flex:1;min-width:0}
.app-card .names h3{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;line-height:1.4}
.app-card .names small{display:block;font-size:11px;color:var(--ink-2);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-card .arrow{color:var(--brand);font-size:15px;flex-shrink:0;transition:transform .2s var(--ease)}
.app-card:hover .arrow{transform:translateX(4px)}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:640px;justify-self:stretch}
  .app-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .app-grid{grid-template-columns:1fr}
}

/* ===== 首页实拍瞬间图带（2026-08-21） ===== */
.strip{border-bottom:1px solid var(--line)}
.strip-grid{display:grid;grid-template-columns:repeat(6,1fr)}
.strip-item{aspect-ratio:16/10;overflow:hidden;background:var(--ink)}
.strip-item+.strip-item{border-left:1px solid var(--bg)}
.strip-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s var(--ease)}
.strip-item:hover img{transform:scale(1.06)}
@media(max-width:900px){
  .strip-grid{grid-template-columns:repeat(3,1fr)}
  .strip-item:nth-child(n+2){border-left:none}
  .strip-item:nth-child(3n+2),.strip-item:nth-child(3n+3){border-left:1px solid var(--bg)}
  .strip-item:nth-child(n+4){border-top:1px solid var(--bg)}
}
@media(max-width:640px){
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .strip-item{border-left:none!important;border-top:none!important}
  .strip-item:nth-child(2n){border-left:1px solid var(--bg)!important}
  .strip-item:nth-child(n+3){border-top:1px solid var(--bg)!important}
}

/* ===== 製品詳細ページ画像ギャラリー（2026-08-24） ===== */
/* 画像は自然比率を維持し、単独画像の過大表示とワイドバナーの押し潰しを防ぐ。 */
.product-media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}
.product-media-grid--single{grid-template-columns:minmax(0,600px)}
.product-media-grid--3:not(.product-media-grid--has-wide){grid-template-columns:repeat(3,minmax(0,1fr))}
.product-media-item{margin:0;min-width:0}
.product-media-item img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:4px;background:#fff}
.product-media-item--wide{grid-column:1/-1}
.product-media-item--wide img{max-width:100%;height:auto}
.app-hero-media{margin:0;min-width:0}
.app-hero-media img{width:100%;height:auto;display:block;border:1px solid var(--line);border-radius:4px;background:#fff}
@media(max-width:900px){
  .product-media-grid,
  .product-media-grid--3:not(.product-media-grid--has-wide){grid-template-columns:repeat(2,minmax(0,1fr))}
  .product-media-grid--single{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:640px){
  .product-media-grid,
  .product-media-grid--3:not(.product-media-grid--has-wide){grid-template-columns:1fr}
  .product-media-item--wide{grid-column:auto}
}