/* ===========================================================
   LUMINOVA 下層ページ共通スタイル
   index.html のデザイントークンと共通パーツを揃えるための1本
   =========================================================== */
:root{
  --base:#F9F9F9; --black:#000; --ink:#111111; --ink2:#0E141C;
  --white:#fff; --soft:#FAFAFA;
  --mute:#6E7278; --line:#E2E2E2; --line-d:rgba(255,255,255,.28);
  --g1:#E7EEF7; --g2:#5F87B6; --g3:#C4D6EA;
  --blue:#5F87B6; --blue-l:#8DB3CB; --blue-d:#16283C;
  --en:"Jost",-apple-system,"Century Gothic",sans-serif;
  --pad:clamp(20px,4.2vw,64px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--base);color:var(--ink);
  font-family:"Zen Kaku Gothic New",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;font-feature-settings:"palt";overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,figure,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit}
.wrap{width:90%;max-width:1280px;margin:0 auto;padding:0}
.en{font-family:var(--en)}
.sec{padding:clamp(62px,10vh,124px) 0;position:relative}
.sec__hd{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end}

/* ── 巨大なグラデ見出し ── */
.big{font-family:var(--en);font-weight:700;font-size:clamp(58px,13vw,187px);line-height:1;
  letter-spacing:-.05em;white-space:nowrap;
  background:linear-gradient(to right,var(--g1) 11.8%,var(--g2) 63.4%,var(--g3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;width:max-content;overflow:hidden;padding:.06em 0 .04em}
.big span{display:inline-block;transform:translateY(105%);
  transition:transform 1s cubic-bezier(.16,1,.3,1)}
.big.in span{transform:none}
.big--blue{background-image:linear-gradient(to right,#123A6B,#2A6AB0 34%,#5F87B6 82%)}
.jp{font-size:clamp(19px,2.5vw,32px);line-height:1.85;font-weight:500;letter-spacing:.04em}
.enlist{margin-top:26px;display:flex;flex-direction:column;gap:11px}
.enlist span{font-family:var(--en);font-size:clamp(12px,1.05vw,14.5px);font-weight:500;
  letter-spacing:.1em;color:var(--mute)}

/* ── ボタン ── */
.cbtn{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;
  width:min(330px,100%);height:82px;padding:20px 24px 20px 32px;
  border:1px solid var(--ink2);border-radius:0;background:transparent;
  font-family:var(--en);font-size:14px;font-weight:500;letter-spacing:.1em;
  color:var(--ink2);transition:.45s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden;
  isolation:isolate}
.cbtn i{width:40px;height:40px;border:1px solid currentColor;border-radius:50%;flex:none;
  display:grid;place-items:center;transition:.45s cubic-bezier(.16,1,.3,1)}
.cbtn i svg{width:15px;height:15px;transition:transform .45s cubic-bezier(.16,1,.3,1)}
.cbtn::before{content:"";position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .35s;
  background:linear-gradient(90deg,#0E141C,#16283C .01%,var(--blue) 63.4%,var(--blue-l))}
.cbtn:hover{border-color:transparent;color:var(--white)}
.cbtn:hover::before{opacity:1}
.cbtn:hover i svg{animation:arrowChase .5s linear forwards}
.cbtn--light{border-color:var(--white);color:var(--white)}
.cbtn--light:hover{border-color:transparent;color:var(--white)}
@keyframes arrowChase{0%{transform:translateX(0);opacity:1}45%{transform:translateX(130%);opacity:0}
  50%{transform:translateX(-130%);opacity:0}100%{transform:translateX(0);opacity:1}}

/* ── ヘッダー ── */
.hd{position:fixed;inset:0 0 auto;z-index:90;padding:26px var(--pad);transition:background .4s,padding .4s}
.hd.solid{background:rgba(249,249,249,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(14,21,34,.07);padding-top:17px;padding-bottom:17px}
.hd.solid.dark{background:transparent;backdrop-filter:none;border-bottom-color:transparent}
.hd.solid.dark .brand,.hd.solid.dark .menu b{color:var(--white)}
.hd.solid.dark .menu s{background:var(--white)}
.hd__in{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font-family:var(--en);font-weight:600;font-size:17px;letter-spacing:.24em;color:var(--white);
  transition:color .4s;display:inline-flex;align-items:center;gap:11px}
.brand__mark{width:30px;height:30px;object-fit:contain;flex:none;transition:filter .4s}
.hd.solid .brand__mark{filter:brightness(0)}
.hd.solid.dark .brand__mark{filter:none}
.hd.solid .brand{color:var(--ink)}
.menu{background:none;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:flex-end;gap:7px;padding:4px 0}
.menu b{font-family:var(--en);font-weight:600;font-size:12.5px;letter-spacing:.08em;color:var(--white);transition:color .4s}
.hd.solid .menu b{color:var(--ink)}
.menu s{display:block;width:56px;height:1px;background:var(--white);text-decoration:none;transition:.35s}
.hd.solid .menu s{background:var(--ink)}
.menu[aria-expanded="true"] b,.menu[aria-expanded="true"] s{color:var(--white);background:var(--white)}
.menu[aria-expanded="true"] s:nth-of-type(1){transform:translateY(4px) rotate(6deg)}
.menu[aria-expanded="true"] s:nth-of-type(2){transform:translateY(-4px) rotate(-6deg)}
.ovl{position:fixed;inset:0;z-index:85;background:var(--black);display:flex;align-items:center;
  padding:0 var(--pad);opacity:0;visibility:hidden;transition:opacity .5s,visibility .5s}
.ovl.open{opacity:1;visibility:visible}
.ovl nav{display:flex;flex-direction:column;gap:6px}
.ovl a{font-family:var(--en);font-weight:500;font-size:clamp(26px,5vw,62px);line-height:1.3;
  letter-spacing:-.02em;color:rgba(255,255,255,.5);transition:color .3s}
.ovl a:hover{color:var(--white)}
.ovl a em{font-style:normal;font-family:"Zen Kaku Gothic New",sans-serif;font-size:13px;
  letter-spacing:.1em;margin-left:16px;color:rgba(255,255,255,.35)}

/* ── 下層ページの見出し帯（写真1枚の全画面／参考サイトの実測に合わせた） ── */
.phead{position:relative;min-height:min(100svh,900px);padding:100px 0 30vh;
  display:flex;flex-direction:column;color:var(--white);overflow:hidden;background:#000}
.phead__bg{position:absolute;inset:0;z-index:0}
.phead__bg img{width:100%;height:100%;object-fit:cover}
.phead__bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,7,12,.72) 0%,rgba(4,7,12,.5) 42%,rgba(4,7,12,.82) 100%)}
.phead .wrap{position:relative;z-index:2}
.phead__h{display:flex;align-items:baseline;gap:1.5rem;padding-top:40px;flex-wrap:wrap}
.phead__en{font-family:var(--en);font-weight:700;font-size:clamp(28px,2.99vw,43px);
  line-height:normal;letter-spacing:.02em;color:var(--white)}
.phead__ja{font-size:.875rem;font-weight:500;letter-spacing:.1em;color:rgba(255,255,255,.86)}
.phead__body{text-align:center;margin-top:10vh}
.phead__catch{font-family:var(--en);font-weight:700;font-size:clamp(50px,6.94vw,100px);
  line-height:normal;letter-spacing:-.01em;
  background:linear-gradient(to right,var(--g1) 8%,#BBD1E8 46%,var(--g2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.phead__sub{margin-top:1.25rem;font-size:clamp(18px,1.74vw,25px);font-weight:500;
  letter-spacing:.1em;line-height:1.16;text-shadow:0 0 5px rgba(0,0,0,.9),0 0 10px rgba(0,0,0,.7)}
.phead__desc{margin-top:clamp(24px,4.6vh,44px);font-size:clamp(15px,1.4vw,20px);line-height:1.6;
  letter-spacing:.06em;color:rgba(255,255,255,.78)}
/* 段差つきの出現（en → ja → catch → sub → desc） */
.phead__en,.phead__ja,.phead__catch,.phead__sub,.phead__desc{
  opacity:0;transform:translateY(30px);
  transition:opacity 1s cubic-bezier(.33,1,.68,1),transform 1s cubic-bezier(.33,1,.68,1)}
.phead__ja{transition-duration:.8s;transition-delay:.1s}
.phead__catch{transition-duration:.8s;transition-delay:.3s}
.phead__sub{transition-duration:.8s;transition-delay:.5s}
.phead__desc{transition-duration:.8s;transition-delay:.7s}
.phead.in .phead__en,.phead.in .phead__ja,.phead.in .phead__catch,
.phead.in .phead__sub,.phead.in .phead__desc{opacity:1;transform:translateY(0)}
/* 実績一覧のような、写真を使わない簡易ヘッダー */
.phead--plain{min-height:0;padding:calc(76px + 6.25rem) 0 0;background:none;color:var(--ink)}
.phead--plain .phead__en{font-size:clamp(36px,3.47vw,50px);letter-spacing:.03em;color:var(--ink2)}
.phead--plain .phead__ja{color:var(--mute)}
.phead--plain .phead__desc{color:var(--mute);margin-top:clamp(18px,3vh,30px);
  font-size:clamp(14px,1.5vw,17px);line-height:2.05;max-width:44em}
.crumb{display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  font-family:var(--en);font-size:11.5px;letter-spacing:.12em;color:rgba(255,255,255,.5)}
.crumb a:hover{color:var(--white)}
.crumb span{opacity:.5}
.phead--plain .crumb{color:var(--mute)}
.phead--plain .crumb a:hover{color:var(--ink)}

@media(max-width:600px){
  /* 参考サイトと同じく、スマホでは見出し帯の高さを内容なりにする */
  .phead{min-height:auto;padding:2.5rem 0 5rem}
  .phead__h{padding-top:24px;gap:1rem}
  .phead__body{margin-top:8vh}
  .phead--plain{padding:calc(64px + 2.5rem) 0 0}
}

/* ── 画面外までせり出す巨大な英字ラベル ── */
.hero-lab{position:relative;margin-top:clamp(30px,3.75rem,60px);padding-top:1.875rem}
.hero-lab__en{font-family:var(--en);font-weight:700;line-height:1;
  font-size:clamp(64px,11.1vw,160px);margin-left:-1.6%;letter-spacing:-.02em;
  background:linear-gradient(to right,#123A6B,#2A6AB0 34%,#5F87B6 82%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lab__ja{margin-top:2.5rem;font-weight:700;font-size:clamp(24px,3.06vw,44px);
  line-height:1.64;letter-spacing:.1em}
.hero-lab__ja small{display:block;margin-top:.5rem;font-size:clamp(13px,1.25vw,18px);
  font-weight:500;letter-spacing:.08em;color:var(--mute)}
.hero-lab__desc{margin-top:clamp(34px,5rem,80px);padding-left:20%;
  font-size:clamp(14px,1.25vw,18px);line-height:2.14;letter-spacing:.1em;color:var(--mute)}
@media(max-width:599px){
  .hero-lab__en{font-size:4rem;margin-left:0}
  .hero-lab__desc{padding-left:0;margin-top:3rem;font-size:14px}
}

/* ── 汎用のセクション見出し ── */
.shd{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.shd__en{font-family:var(--en);font-size:12px;font-weight:600;letter-spacing:.18em;color:var(--blue)}
.shd__t{font-size:clamp(22px,3vw,38px);font-weight:700;line-height:1.55;letter-spacing:.03em}
.lead{font-size:clamp(14px,1.55vw,17px);line-height:2.05;color:var(--mute);text-wrap:pretty}

/* ── フッター ── */
.ft{background:#000;color:var(--white);padding:clamp(48px,7vh,80px) 0 40px;position:relative}
.ft::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,217,234,.5),transparent)}
.ft__mark{width:32px;height:32px;object-fit:contain;flex:none;
  filter:drop-shadow(0 0 12px rgba(110,155,200,.4))}
.ft__brand{display:flex;align-items:center;gap:14px}
.ft__nav{display:flex;gap:22px;flex-wrap:wrap}
.ft__nav a{font-size:12.5px;color:rgba(255,255,255,.7);transition:color .3s}
.ft__nav a:hover{color:var(--white)}
.ft__in{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ft small{font-family:var(--en);font-size:11px;letter-spacing:.08em;color:rgba(255,255,255,.45)}

/* ── 追従ボタン ── */
.fab{position:fixed;right:clamp(14px,2vw,30px);bottom:clamp(14px,2vw,30px);z-index:70;
  width:clamp(86px,9vw,118px);height:clamp(86px,9vw,118px);border-radius:50%;
  background:var(--ink2);color:var(--white);display:grid;place-content:center;text-align:center;
  gap:3px;opacity:0;transform:scale(.72);pointer-events:none;
  transition:opacity .45s,transform .45s cubic-bezier(.16,1,.3,1),background .35s}
.fab.on{opacity:1;transform:none;pointer-events:auto}
.fab b{font-family:var(--en);font-weight:700;font-size:clamp(11px,1.05vw,13.5px);letter-spacing:.06em}
.fab small{font-size:clamp(9px,.85vw,11px);color:rgba(255,255,255,.72)}
.fab:hover{background:var(--blue)}

/* ── 出現 ── */
.rise{opacity:0;transform:translateY(40px);
  transition:opacity 1s cubic-bezier(.33,1,.68,1),transform 1s cubic-bezier(.33,1,.68,1)}
.rise.in{opacity:1;transform:none}
/* 文字割り：行ごとに overflow:hidden の器を作り、文字を下から出す */
.spl{display:inline-block;overflow:hidden;vertical-align:text-bottom;line-height:inherit;padding-top:.08em}
.spl>span{display:inline-block;transform:translateY(105%);
  transition:transform 1s cubic-bezier(.16,1,.3,1);will-change:transform}
.in .spl>span,.spl.in>span{transform:translateY(0)}

/* ── 下部の共通CTA ── */
.cta{background:linear-gradient(180deg,#000 0%,#06080C 55%,#000 100%);color:var(--white);
  text-align:center;padding:clamp(70px,11vh,132px) 0}
.cta h2{font-size:clamp(22px,3.2vw,42px);font-weight:700;line-height:1.7;letter-spacing:.04em}
.cta p{margin-top:clamp(16px,2.4vh,24px);font-size:clamp(13.5px,1.5vw,16px);
  line-height:2;color:rgba(255,255,255,.62)}
.cta .cbtn{margin-top:clamp(28px,4.4vh,46px)}

@media(max-width:1000px){
  .sec__hd{grid-template-columns:1fr;gap:26px;align-items:start}
  .cbtn{width:100%}
  .ovl nav{gap:2px}
  .shd{gap:10px}
}
@media(prefers-reduced-motion:reduce){
  .rise,.big span{opacity:1;transform:none}
}

/* ── 実績カード（参考サイトの実測：2カラム／16:9／角丸なし／画像だけ拡大） ── */
.wk{display:grid;grid-template-columns:repeat(2,1fr);gap:50px 30px;margin-top:clamp(30px,4.6vh,54px)}
.wk__i{display:block;color:inherit}
.wk__ph{position:relative;overflow:hidden;aspect-ratio:16/9;background:#0E141C}
.wk__ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.wk__i:hover .wk__ph img{transform:scale(1.05)}
.wk__biz{position:absolute;left:0;top:0;z-index:2;padding:9px 18px;
  background:rgba(10,14,22,.68);backdrop-filter:blur(6px);color:var(--white);
  font-size:12px;font-weight:600;letter-spacing:.1em}
.wk__b{margin-top:1rem}
.wk__meta{font-family:var(--en);font-weight:700;font-size:.8125rem;letter-spacing:.03em;
  color:#9C9C9C;display:block}
.wk__row{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;margin-top:.5rem}
.wk__t{font-weight:700;font-size:clamp(17px,1.9vw,23px);line-height:1.5;color:var(--ink);
  display:flex;align-items:baseline;gap:.5em}
.wk__t b{font-family:var(--en);font-size:1.5em;font-weight:700;letter-spacing:-.02em;
  background:linear-gradient(to right,#0E141C,#16283C 20%,var(--blue) 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.wk__arrow{width:1.75rem;height:1.75rem;flex-shrink:0;margin-top:.125rem;border:1px solid var(--line);
  border-radius:50%;display:grid;place-items:center;transition:.4s cubic-bezier(.16,1,.3,1)}
.wk__arrow svg{width:12px;height:12px}
.wk__i:hover .wk__arrow{background:var(--ink2);border-color:var(--ink2);color:var(--white)}
.wk__d{margin-top:.75rem;font-size:13.5px;line-height:1.95;color:var(--mute)}
.wk__tags{margin-top:.85rem;display:flex;flex-wrap:wrap;gap:8px}
.wk__tags span{border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:11.5px;
  letter-spacing:.04em;color:var(--mute)}

/* ── STEPインジケータ（参考サイトの実測：現在地だけ不透明、間を細い線でつなぐ） ── */
.stepbar{display:flex;align-items:center;gap:.5rem;max-width:42.5rem;flex-wrap:wrap}
.stepbar__s{display:flex;align-items:center;gap:1.5rem;opacity:.55;transition:opacity .5s}
.stepbar__s.is-current{opacity:1}
.stepbar__n{width:80px;height:80px;border-radius:50%;border:1px solid currentColor;
  display:grid;place-items:center;line-height:1;font-family:var(--en);font-weight:700}
.stepbar__n b{font-size:1.75rem;letter-spacing:-.02em}
.stepbar__n i{font-style:normal;font-size:.6875rem;letter-spacing:.06em;opacity:.7;display:block}
.stepbar__l{font-size:14px;font-weight:600;letter-spacing:.1em}
.stepbar__line{width:89px;height:1px;background:currentColor;opacity:.35}
.flow li{transition:border-color .45s,background .45s}
.flow li:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06)}
@media(max-width:820px){
  .stepbar__s{gap:.6rem}
  .stepbar__n{width:56px;height:56px}
  .stepbar__n b{font-size:1.15rem}
  .stepbar__line{width:28px}
}
@media(max-width:820px){ .wk{grid-template-columns:1fr;gap:34px} }