/* ===== a91nx-ish base ===== */
:root{
  --bg:#ffffff;
  --bg2:#f6f7fb;
  --ink:#0b1220;
  --muted:rgba(11,18,32,.72);
  --hair:rgba(11,18,32,.12);
  --glass:rgba(255,255,255,.72);
  --glow:rgba(14,165,183,.22);
  --accent:#0ea5b7;
  --radius:18px;
  --wrap:1100px;
  --shadow: 0 12px 28px rgba(2,10,22,.12);
  --shadow2: 0 6px 16px rgba(2,10,22,.08);
  --font: "Noto Sans JP", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
}

.wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 18px;
}

/* ===== Brandbar ===== */
.brandbar{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--glass);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--hair);
}
.brandbar__wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 0;
}
.brandbar__brand{
  display:flex;
  gap:10px;
  align-items:baseline;
  text-decoration:none;
  color:var(--ink);
}
.brandbar__mark{ font-weight:800; letter-spacing:.02em; }
.brandbar__sub{ font-size:.85rem; color:rgba(11,18,32,.55); letter-spacing:.14em; }
.brandbar__pill{
  font-size:.78rem;
  font-weight:700;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--hair);
  background:rgba(255,255,255,.55);
}

/* ===== Top progress ===== */
.top-progress{
  height:2px;
  background:rgba(11,18,32,.08);
}
.top-progress__bar{
  height:100%;
  width:0%;
  background:linear-gradient(90deg, transparent, var(--accent), rgba(159,182,255,.9));
}

/* ===== Local nav ===== */
.lnav{
  position:sticky;
  top:48px; /* brandbar の高さ想定 */
  z-index:50;
  background:rgba(255,255,255,.78);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--hair);
}
.lnav__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  max-width:var(--wrap);
  margin:0 auto;
  padding:12px 18px;
}
.lnav__product{ font-weight:800; letter-spacing:.02em; }
.lnav__sub{ font-size:.86rem; color:rgba(11,18,32,.62); margin-top:2px; }

.lnav__right{
  display:flex;
  align-items:center;
  gap:10px;
}
.lnav__link{
  text-decoration:none;
  color:rgba(11,18,32,.70);
  padding:8px 10px;
  border-radius:12px;
  border:1px solid transparent;
}
.lnav__link:hover{
  border-color:var(--hair);
  background:rgba(11,18,32,.03);
}
.lnav__link.is-active{
  border-color:rgba(14,165,183,.35);
  background:rgba(14,165,183,.10);
  color:rgba(11,18,32,.86);
}
.lnav__cta{
  text-decoration:none;
  font-weight:800;
  padding:9px 12px;
  border-radius:14px;
  background:var(--ink);
  color:#fff;
}
.lnav__cta:hover{ opacity:.92; }

.lnav__more{
  display:none;
  border:1px solid var(--hair);
  background:rgba(255,255,255,.65);
  border-radius:12px;
  padding:8px 10px;
  font-weight:700;
  cursor:pointer;
}
.lnav__panel{
  max-width:var(--wrap);
  margin:0 auto;
  padding:12px 18px 16px;
  border-top:1px solid var(--hair);
}
.lnav__plink{
  display:block;
  padding:10px 0;
  text-decoration:none;
  color:rgba(11,18,32,.78);
  font-weight:700;
}

/* ===== Hero ===== */
.hero{
  background: radial-gradient(900px 500px at 20% 0%, var(--glow), transparent 60%),
              radial-gradient(700px 500px at 90% 10%, rgba(99,102,241,.12), transparent 60%),
              linear-gradient(180deg, #ffffff 0%, #f7f8fc 70%, #ffffff 100%);
  padding:58px 0 28px;
}
.hero__wrap{ text-align:center; }
.hero__eyebrow{
  color:rgba(11,18,32,.62);
  letter-spacing:.14em;
  font-weight:700;
  margin:0 0 6px;
  font-size:.92rem;
}
.hero__title{
  margin:0 0 8px;
  font-size:clamp(30px, 3.8vw, 48px);
  letter-spacing:-.02em;
}
.hero__lead{
  margin:0 auto;
  max-width:820px;
  color:rgba(11,18,32,.72);
  font-size:clamp(14px, 1.4vw, 18px);
  line-height:1.8;
}
.hero__visual{ margin-top:20px; }
.hero__figure{
  margin:0 auto;
  max-width:980px;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--hair);
  background:#fff;
  box-shadow:var(--shadow2);
}
.hero__img{ width:100%; height:auto; display:block; }
.hero__cap{
  padding:10px 14px;
  font-size:.92rem;
  color:rgba(11,18,32,.66);
  background:rgba(255,255,255,.70);
  border-top:1px solid var(--hair);
}
.hero__badges{
  margin-top:14px;
  display:flex;
  justify-content:center;
  gap:8px;
  flex-wrap:wrap;
}
.badge{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--hair);
  background:rgba(255,255,255,.72);
  font-weight:700;
  font-size:.86rem;
  color:rgba(11,18,32,.72);
}

/* ===== Slabs / headings ===== */
.slab{ padding:54px 0; background:var(--bg); }
.slab--alt{ background:var(--bg2); }
.h2{
  margin:0 0 10px;
  font-size:clamp(22px, 2.1vw, 30px);
  letter-spacing:-.02em;
}
.h3{
  margin:0 0 8px;
  font-size:1.08rem;
  letter-spacing:-.01em;
}
.lead{
  margin:0 0 18px;
  color:rgba(11,18,32,.72);
  line-height:1.9;
}
.note{
  margin:16px 0 0;
  color:rgba(11,18,32,.58);
  font-size:.92rem;
}

/* ===== Highlights tabs ===== */
.hl{
  border:1px solid var(--hair);
  border-radius:var(--radius);
  background:rgba(255,255,255,.8);
  box-shadow:var(--shadow2);
  overflow:hidden;
}
.hl__tabs{
  display:flex;
  gap:0;
  border-bottom:1px solid var(--hair);
}
.hl__tab{
  flex:1;
  padding:12px 10px;
  border:0;
  background:transparent;
  cursor:pointer;
  font-weight:800;
  color:rgba(11,18,32,.62);
}
.hl__tab.is-active{
  color:rgba(11,18,32,.92);
  background:linear-gradient(180deg, rgba(14,165,183,.10), rgba(14,165,183,.04));
}
.hl__panes{ padding:16px 16px 18px; }
.hl__pane{ display:none; }
.hl__pane.is-active{ display:block; }
.hl__lead{ margin:0 0 6px; font-weight:900; }
.hl__text{ margin:0; color:rgba(11,18,32,.72); line-height:1.9; }

/* ===== Cards ===== */
.grid3{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:12px;
  margin-top:14px;
}
.vcard{
  background:#fff;
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow2);
}
.vcard p{ margin:0; color:rgba(11,18,32,.72); line-height:1.9; }

/* ===== Specs (metrics) ===== */
.specgrid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:12px;
  margin-top:10px;
}
.spec{
  background:#fff;
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow2);
}
.spec__k{ font-weight:800; color:rgba(11,18,32,.62); }
.spec__v{ font-weight:900; font-size:clamp(22px, 3vw, 34px); margin-top:6px; letter-spacing:-.02em; }
.spec__u{ margin-top:6px; color:rgba(11,18,32,.68); }

/* ===== Film ===== */
.film__layout{
  display:grid;
  grid-template-columns: 1fr 1.1fr;
  gap:14px;
  align-items:start;
}
.film__sticky{
  position:sticky;
  top:124px; /* brandbar+lnav の高さ想定 */
}
.film__frame{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--hair);
  background:#fff;
  box-shadow:var(--shadow);
  position:relative;
}
.film__frame img{ width:100%; height:auto; display:block; }
.film__glow{
  position:absolute; inset:-30%;
  background:radial-gradient(circle at 30% 30%, rgba(14,165,183,.22), transparent 55%);
  pointer-events:none;
}
.film__steps{ display:grid; gap:10px; }
.step{
  background:#fff;
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:14px 16px;
  box-shadow:var(--shadow2);
  opacity:.55;
  transform: translateY(6px);
  transition: opacity .22s ease, transform .22s ease;
}
.step.is-active{
  opacity:1;
  transform: translateY(0);
}
.step__meta{ margin-top:6px; color:rgba(11,18,32,.62); font-weight:700; }

/* ===== Pill list ===== */
.grid2{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:12px;
}
.pillbox{
  background:#fff;
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow2);
}
.list{
  margin:10px 0 0;
  padding:0;
  list-style:none;
}
.list li{
  padding:10px 10px;
  border-radius:14px;
  border:1px solid var(--hair);
  background:rgba(11,18,32,.02);
  margin-bottom:8px;
}

/* ===== Details ===== */
.details{
  background:#fff;
  border:1px solid var(--hair);
  border-radius:var(--radius);
  padding:12px 14px;
  box-shadow:var(--shadow2);
  margin-top:10px;
}
.details__sum{
  cursor:pointer;
  font-weight:900;
  color:rgba(11,18,32,.86);
}
.details__body{ padding-top:10px; color:rgba(11,18,32,.72); line-height:1.9; }

/* ===== CTA / Footer ===== */
.contact .cta{ display:flex; gap:10px; flex-wrap:wrap; margin-top:14px; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:16px;
  padding:12px 16px;
  font-weight:900;
  border:1px solid var(--ink);
  background:var(--ink);
  color:#fff;
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{ opacity:.92; }
.btn--ghost{
  background:transparent;
  color:rgba(11,18,32,.86);
  border-color:var(--hair);
}
.btn--ghost:hover{ background:rgba(11,18,32,.03); }

.footer{
  padding:18px 0;
  border-top:1px solid var(--hair);
  background:#fff;
}
.footer__wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color:rgba(11,18,32,.58);
}
.footer__top{
  text-decoration:none;
  color:rgba(11,18,32,.58);
  border:1px solid var(--hair);
  border-radius:12px;
  padding:6px 10px;
}
.footer__top:hover{ background:rgba(11,18,32,.03); }

/* ===== Reveal ===== */
.reveal{ opacity:0; transform: translateY(10px); }
.reveal.is-in{ opacity:1; transform: translateY(0); transition: opacity .6s ease, transform .6s ease; }

/* ===== Responsive ===== */
@media (max-width: 960px){
  .grid3{ grid-template-columns:1fr; }
  .specgrid{ grid-template-columns:1fr; }
  .grid2{ grid-template-columns:1fr; }
  .film__layout{ grid-template-columns:1fr; }
  .film__sticky{ top:0; position:relative; }
}

@media (max-width: 860px){
  .lnav__right{ display:none; }
  .lnav__more{ display:inline-flex; }
  .lnav{ top:48px; }
}