/* =========================================================
   digitive.jp 共通CSS（デザインシステム）
   design tokens / reset / カーソル / header / phead / CTA / footer /
   汎用パーツ / レスポンシブ / reduced-motion。ページ固有のCSSは各ページの<style>内。
   ========================================================= */

/* =========================================================
   0. Design Tokens（下層ページ共通と完全に同一）
   ========================================================= */
:root{
  --paper:#ffffff;
  --ink:#0A0A0A;
  --ink2:#3B3B3B;
  --sub:#767676;
  --line:#E6E6E6;
  --line2:#C7C7C7;
  --blue:#0171E3;
  --wash:#F5F5F5;

  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  --disp:"Oswald","Inter","Noto Sans JP",sans-serif;
  --ui:"Inter","Noto Sans JP",sans-serif;

  --pad:clamp(18px,4.4vw,76px);
  --sec:clamp(88px,9.4vw,142px);
  --maxw:1480px;

  --e-out:cubic-bezier(.16,1,.3,1);
  --e-sharp:cubic-bezier(.19,1,.22,1);
}

/* =========================================================
   1. Reset & Base
   ========================================================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:400;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.045em;
  font-feature-settings:"palt" 1;
  word-break:normal;
  line-break:strict;
  overflow-wrap:anywhere;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img,video{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol,dl,dd{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
::selection{background:var(--blue);color:#fff;}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.pc-br{display:inline;}

.sec{padding-block:var(--sec);position:relative;}
.sec--wash{background:var(--wash);}

.eyebrow{
  display:flex;align-items:center;gap:14px;
  font-family:var(--ui);font-size:11px;font-weight:600;
  letter-spacing:.26em;text-transform:uppercase;color:var(--sub);
  margin-bottom:clamp(20px,3vw,40px);
}
.eyebrow b{color:var(--blue);font-weight:600;}
.eyebrow .rule{display:block;flex:0 0 auto;width:clamp(30px,5vw,72px);height:1px;background:var(--ink);transform-origin:left center;}

.disp{
  font-family:var(--disp);font-weight:600;
  text-transform:uppercase;
  line-height:.86;
  letter-spacing:-.005em;
  font-size:clamp(46px,10.5vw,168px);
}
.disp--sm{font-size:clamp(38px,7vw,112px);}
.disp--xs{font-size:clamp(30px,4.6vw,66px);}
.disp--hair{font-weight:300;}

.h-ja{font-weight:700;font-size:clamp(21px,2.9vw,40px);line-height:1.55;letter-spacing:.02em;}
.h-ja--sm{font-size:clamp(18px,2vw,26px);line-height:1.65;}

.lead{font-size:clamp(14px,1.05vw,16px);line-height:1.95;letter-spacing:.05em;color:var(--ink2);}
.body-tx{font-size:clamp(14px,1vw,15.5px);line-height:2;letter-spacing:.05em;color:var(--ink2);}
.body-tx p+p{margin-top:1.5em;}
.muted{color:var(--sub);}
.mono{font-family:var(--ui);letter-spacing:.14em;font-size:11px;font-weight:600;color:var(--sub);text-transform:uppercase;}

.ch{display:inline-block;overflow:hidden;vertical-align:top;white-space:pre;padding:.22em 0 .28em;margin:-.22em 0 -.28em;}
.ch>i{display:inline-block;font-style:normal;will-change:transform;}
.splitline{display:block;}
html.gsap-ready [data-split]{opacity:0;}
html.gsap-ready [data-fx]{opacity:0;}

.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:14px;
  min-height:58px;padding:0 34px;border-radius:999px;
  font-family:var(--ui);font-size:13px;font-weight:600;letter-spacing:.1em;
  background:var(--blue);color:#fff;
  transition:background .4s var(--e-out),color .4s var(--e-out);
  will-change:transform;
}
.btn:hover{background:var(--ink);}
.btn--ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn--ghost:hover{background:var(--ink);color:#fff;}
.btn--lg{min-height:clamp(60px,6.4vw,82px);padding:0 clamp(28px,3.6vw,48px);font-size:clamp(13px,1.05vw,15px);}
.btn__arrow{display:block;width:20px;height:1px;background:currentColor;position:relative;flex:0 0 auto;}
.btn__arrow::after{content:"";position:absolute;right:0;top:-3px;width:8px;height:8px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg);}

.ulink{position:relative;display:inline-block;color:var(--blue);font-size:14px;letter-spacing:.06em;padding-bottom:3px;overflow-wrap:break-word;}
.ulink::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right center;transition:transform .55s var(--e-out);}
.ulink:hover::after{transform:scaleX(1);transform-origin:left center;}

.img-fallback{background:#F5F5F5;border:1px dashed #C7C7C7;}
.img-fallback::after{
  content:attr(data-fallback);
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:12px;letter-spacing:.08em;color:#8A8A8A;text-align:center;padding:12px;line-height:1.7;
}

.progress{position:fixed;top:0;left:0;width:100%;height:2px;z-index:900;pointer-events:none;}
.progress i{display:block;height:100%;background:var(--blue);transform:scaleX(0);transform-origin:left center;}

/* =========================================================
   2. カスタムカーソル
   ========================================================= */
.cursor,.cursor-dot{position:fixed;top:0;left:0;z-index:9500;pointer-events:none;opacity:0;}

/* ホバー時に輪を拡大するが、文字(.cursor__txt)は拡大しない。
   .cursor ごと scale すると 9px で描画した文字を引き伸ばすことになり、輪郭がガビガビになる。
   輪は ::before に分離して transform:scale(var(--ring)) で拡大し、
   文字は最初から実寸(16px)で置いて一切拡大しない。 */
.cursor{
  --ring:1;
  width:82px;height:82px;
  display:flex;align-items:center;justify-content:center;
  will-change:transform;
  mix-blend-mode:difference;
}
.cursor::before{
  content:"";position:absolute;left:50%;top:50%;
  width:44px;height:44px;margin:-22px 0 0 -22px;
  border:1px solid #fff;border-radius:50%;
  transform:scale(var(--ring));
  will-change:transform;
}
.cursor__txt{font-family:var(--ui);font-size:16px;font-weight:700;letter-spacing:.14em;color:#fff;opacity:0;white-space:nowrap;font-style:normal;}
.cursor-dot{width:6px;height:6px;border-radius:50%;background:#fff;mix-blend-mode:difference;will-change:transform;}
html.has-cursor,html.has-cursor a,html.has-cursor button,html.has-cursor [data-magnet]{cursor:none;}

/* =========================================================
   3. Header
   ========================================================= */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:800;
  transition:background-color .5s var(--e-out),border-color .5s var(--e-out);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:saturate(150%) blur(16px);
  backdrop-filter:saturate(150%) blur(16px);
  border-bottom-color:var(--line);
}
/* メニューを開いている間は backdrop-filter を切る。
   値が none 以外だと .site-header が position:fixed の包含ブロックになり、
   画面全体を覆うはずの .nav（モバイル時 position:fixed;inset:0）が
   ヘッダーの高さ（64〜86px）に閉じ込められて中身が見切れる。
   メニューが開いている間はヘッダー背景は見えないので、切っても見た目に影響しない。 */
body.is-locked .site-header{
  -webkit-backdrop-filter:none;
  backdrop-filter:none;
}
.hdr{display:flex;align-items:center;justify-content:space-between;height:clamp(64px,6.4vw,86px);gap:20px;}
.brand{font-family:var(--disp);font-weight:600;font-size:clamp(20px,2.1vw,26px);letter-spacing:-.01em;line-height:1;display:inline-flex;align-items:center;}
.brand__img{height:clamp(20px,2.0vw,26px);width:auto;display:block;}
.brand .bang{color:var(--blue);}
.nav{display:flex;align-items:center;gap:clamp(14px,2.2vw,36px);}
.nlink{position:relative;display:inline-block;font-size:13px;letter-spacing:.08em;}
.nlink::before{content:"";position:absolute;top:-10px;left:-6px;right:-6px;bottom:-10px;}
.nlink__in{display:flex;flex-direction:column;overflow:hidden;height:1.6em;line-height:1.6em;transition:transform .55s var(--e-sharp);}
.nlink__in i{font-style:normal;display:block;height:1.6em;}
.nlink__in i:last-child{color:var(--blue);}
.nlink:hover .nlink__in{transform:translateY(-50%);}
.nlink.is-current .nlink__in i:first-child{color:var(--blue);}
.nav .btn{min-height:46px;padding:0 26px;}

.nav-toggle{display:none;width:46px;height:46px;position:relative;z-index:2;}
.nav-toggle span{position:absolute;left:12px;width:22px;height:1px;background:var(--ink);transition:transform .45s var(--e-sharp),opacity .3s;}
.nav-toggle span:nth-child(1){top:20px;}
.nav-toggle span:nth-child(2){top:26px;}
body.is-locked .nav-toggle span:nth-child(1){transform:translateY(3px) rotate(20deg);}
body.is-locked .nav-toggle span:nth-child(2){transform:translateY(-3px) rotate(-20deg);}

/* =========================================================
   4. ページヘッダー帯
   ========================================================= */
.phead{
  position:relative;
  padding-top:clamp(112px,14vh,196px);
  padding-bottom:clamp(38px,5vw,68px);
  border-bottom:1px solid var(--ink);
  overflow:hidden;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;
  font-family:var(--ui);font-size:10px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sub);
  margin-bottom:clamp(18px,2.6vw,34px);
}
.crumbs a{transition:color .35s var(--e-out);}
.crumbs a:hover{color:var(--blue);}
.crumbs span{color:var(--line2);}
.crumbs em{font-style:normal;color:var(--ink);}
.phead__ttl{display:flex;flex-wrap:wrap;align-items:flex-end;gap:6px clamp(12px,1.6vw,24px);}
.phead__ja{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--sub);
  padding-bottom:6px;border-bottom:1px solid var(--line2);white-space:nowrap;
}
.phead__lead{
  margin-top:clamp(18px,2.4vw,32px);max-width:46em;
  font-size:clamp(14px,1.05vw,16px);line-height:1.95;letter-spacing:.05em;color:var(--ink2);
}

.sec-ttl{display:flex;flex-wrap:wrap;align-items:flex-end;gap:6px clamp(12px,1.6vw,24px);margin-bottom:clamp(28px,3.6vw,46px);}
.sec-ttl__ja{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--sub);white-space:nowrap;
}
.sec__head{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);
  gap:clamp(20px,3.4vw,64px);align-items:end;margin-bottom:clamp(32px,5vw,72px);
}

/* =========================================================
   5. CTA
   ========================================================= */
.cta{padding-block:clamp(86px,11vw,168px);text-align:center;position:relative;overflow:hidden;}
.cta__disp{font-family:var(--disp);font-weight:600;text-transform:uppercase;font-size:clamp(50px,14vw,230px);line-height:.86;letter-spacing:-.015em;}
.cta__disp .blue{color:var(--blue);}
.cta__lead{margin:clamp(22px,3vw,40px) auto 0;max-width:44em;font-size:clamp(14px,1.05vw,16px);line-height:2;letter-spacing:.05em;color:var(--ink2);}
.cta__acts{margin-top:clamp(28px,4vw,54px);display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;}

/* =========================================================
   6. Footer
   ========================================================= */
.site-footer{padding-block:clamp(56px,7.4vw,96px) 36px;border-top:1px solid var(--ink);}
.foot__top{display:grid;grid-template-columns:minmax(0,1.05fr) repeat(4,minmax(0,.62fr));gap:clamp(28px,4vw,56px);}
.foot__logo{width:clamp(130px,15vw,200px);margin-bottom:20px;}
.foot__tag{font-weight:700;font-size:clamp(17px,1.6vw,22px);letter-spacing:.02em;}
/* サイトマップ列 */
.foot-col__h{font-family:var(--ui);font-size:11px;font-weight:600;letter-spacing:.14em;color:var(--sub);text-transform:uppercase;margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col a{font-size:13.5px;letter-spacing:.05em;color:var(--ink2);transition:color .3s;}
.foot-col a:hover{color:var(--blue);}
.foot-col--corp p{font-size:13px;line-height:1.85;letter-spacing:.045em;color:var(--ink2);}
.foot-col--corp p+p{margin-top:10px;}
/* .info は about.html 本文の会社概要テーブルで使用（フッターでは未使用） */
.info{border-top:1px solid var(--line);}
.info div{display:grid;grid-template-columns:minmax(108px,166px) minmax(0,1fr);gap:16px;padding-block:16px;border-bottom:1px solid var(--line);}
.info dt{font-family:var(--ui);font-size:11px;font-weight:600;letter-spacing:.14em;color:var(--sub);padding-top:3px;}
.info dd{font-size:14px;line-height:1.9;letter-spacing:.045em;}
.foot__bottom{margin-top:clamp(40px,5vw,72px);padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;}
.foot__bottom small{font-family:var(--ui);font-size:11px;letter-spacing:.1em;color:var(--sub);}

/* =========================================================
   7. 汎用パーツ
   ========================================================= */
.fig{position:relative;overflow:hidden;border-radius:8px;background:var(--wash);}
.fig img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--e-out);}
.fig:hover img{transform:scale(1.04);}
.cap{margin-top:11px;font-family:var(--ui);font-size:11px;letter-spacing:.1em;color:var(--sub);line-height:1.8;}
.cap b{display:block;font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.03em;color:var(--ink);margin-bottom:3px;line-height:1.8;}
.ar-16x9{aspect-ratio:16/9;}
.ar-4x3{aspect-ratio:4/3;}

@media (max-width:1180px){
  .sec__head{grid-template-columns:1fr;}
  .foot__top{grid-template-columns:minmax(0,1fr) repeat(2,minmax(0,1fr));row-gap:36px;}
}

/* =========================================================
   8. Responsive
   ========================================================= */
@media (max-width:900px){
  .foot__top{grid-template-columns:1fr 1fr;row-gap:32px;}
  .foot__top>:first-child{grid-column:1/-1;}
}
@media (max-width:720px){
  body{font-size:15px;}
  .nav{
    position:fixed;inset:0;z-index:1;flex-direction:column;justify-content:center;align-items:flex-start;
    gap:2px;background:var(--paper);padding:0 var(--pad);
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);
    transition:opacity .45s var(--e-out),transform .45s var(--e-out),visibility .45s;
  }
  .nav.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .nlink{height:2.1em;line-height:2.1em;font-size:26px;font-weight:700;letter-spacing:.02em;}
  .nlink__in i{height:2.1em;}
  .nav .btn{margin-top:26px;}
  .nav-toggle{display:block;}
  .pc-br{display:none;}
  .info div{grid-template-columns:1fr;gap:2px;padding-block:14px;}
  .foot__bottom{flex-direction:column;align-items:flex-start;}
  .cursor,.cursor-dot{display:none !important;}
}
@media (hover:none),(pointer:coarse){
  .cursor,.cursor-dot{display:none !important;}
}

/* =========================================================
   9. 動きを減らす設定
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  html.gsap-ready [data-split],
  html.gsap-ready [data-fx]{opacity:1 !important;}
  .cursor,.cursor-dot{display:none !important;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}