/* =========================================================
   DeepGrid — common styles (shared by every page)
   赤〜橙のグラデーションと、背景で静かに動くグリッドがサイトの軸。
   ========================================================= */
:root{
  --bg:#f8f6f4; --card:#ffffff; --card2:#f4f1ee;
  --line:rgba(30,14,8,.08); --line2:rgba(30,14,8,.16);
  --fg:#16110f; --fg2:#3d3632; --mut:#726a65;
  --g3:#e3121b; --g1:#ff4a1c; --g2:#ff9a1f;
  --grad:linear-gradient(100deg,var(--g3),var(--g1) 45%,var(--g2));
  --tint:#fff1e8; --tint2:#ffcfb3; --tint-ink:#b8360a;
  --shadow:0 1px 2px rgba(40,15,5,.04),0 18px 40px -22px rgba(170,50,10,.28);
  --r:20px;
  --f-jp:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  --f-en:"Lexend","Inter","Helvetica Neue",Arial,sans-serif;
  --nav-h:74px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-jp);font-size:15px;line-height:1.9;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{margin:0;text-wrap:balance}
p{margin:0} ul,ol{margin:0;padding:0} a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--g1);outline-offset:3px;border-radius:4px}
::selection{background:color-mix(in srgb,var(--g2) 30%,transparent)}
.in{max-width:1200px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.en{font-family:var(--f-en)}
.nw{white-space:nowrap}
@media (max-width:420px){.nw{white-space:normal}}
main{position:relative;z-index:1}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:55;background:var(--bg)}

/* ---------- background: grid + ambient light ---------- */
#grid-canvas{position:fixed;inset:0;width:100vw;height:100vh;z-index:-1;pointer-events:none;opacity:.55;background-image:linear-gradient(rgba(120,40,10,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(120,40,10,.10) 1px,transparent 1px);background-size:60px 60px}
.ambient{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.ambient{background:radial-gradient(46vw 46vw at 8% 6%,rgba(255,176,74,.30),transparent 70%),radial-gradient(40vw 40vw at 92% 42%,rgba(255,74,28,.13),transparent 70%),radial-gradient(34vw 34vw at 48% 100%,rgba(255,210,122,.24),transparent 70%)}
.ambient i{display:none}

/* ---------- progress + nav ---------- */
.progress{position:fixed;left:0;top:0;height:3px;width:100%;transform-origin:left;transform:scaleX(var(--p,0));background:var(--grad);z-index:60}
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line)}
.nav-row{display:flex;align-items:center;gap:32px;height:var(--nav-h)}
.nav-row>nav{margin-left:auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--f-en);font-weight:600;font-size:21px;letter-spacing:-.02em;white-space:nowrap}
.brand-mark{width:22px;height:22px;border-radius:6px;background:var(--grad);box-shadow:0 4px 12px -4px var(--g1);position:relative;overflow:hidden}
.brand-mark::after{content:"";position:absolute;inset:0;background-image:linear-gradient(#fff6 1px,transparent 1px),linear-gradient(90deg,#fff6 1px,transparent 1px);background-size:7px 7px}
.nav-links{display:flex;gap:34px;margin:0;padding:0;font-size:15px;font-weight:500;list-style:none}
.nav-links a{position:relative;text-decoration:none;color:var(--mut);transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--grad);transform:scaleX(0);transform-origin:right;transition:transform .35s}
.nav-links a:hover,.nav-links a.on,.nav-links a[aria-current="page"]{color:var(--fg)}
.nav-links a:hover::after,.nav-links a.on::after,.nav-links a[aria-current="page"]::after{transform:scaleX(1);transform-origin:left}
.nav-cta{flex:none;text-decoration:none;font-size:14.5px;font-weight:700;padding:12px 24px;border-radius:999px;background:var(--grad);color:#fff;box-shadow:0 8px 20px -10px var(--g1)}
.nav-toggle{display:none;flex:none;width:42px;height:42px;border:1px solid var(--line2);border-radius:12px;background:#fff;cursor:pointer;place-items:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;border-radius:2px;background:var(--fg);position:relative;transition:transform .3s,background .3s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav.open .nav-toggle span{background:transparent}
.nav.open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.nav.open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
@media (max-width:960px){
  .nav-toggle{display:grid}
  .nav-row{gap:12px}
  .brand{font-size:19px}
  .nav-row>nav{margin-left:0}
  .nav-cta{margin-left:auto;font-size:13px;padding:10px 18px}
  .nav-links{position:absolute;left:0;right:0;top:var(--nav-h);flex-direction:column;gap:0;margin:0;padding:8px 20px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 24px 40px -24px rgba(0,0,0,.25);font-size:15px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.25s}
  .nav-links a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav.open .nav-links{transform:none;opacity:1;pointer-events:auto}
}

/* ---------- section heads ---------- */
.sec{padding-block:130px 0}
.sh{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 18px;align-items:end;margin-bottom:56px}
.sh-no{grid-row:1;font-family:var(--f-en);font-size:13px;font-weight:500;padding:4px 10px;border-radius:999px;background:var(--grad);color:#fff;align-self:start;margin-top:.9em}
.sh-en{grid-row:1;grid-column:2;font-family:var(--f-en);font-weight:200;font-size:clamp(52px,8vw,112px);line-height:1;letter-spacing:-.04em}
.sh h2{grid-column:2;font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-top:10px}
.sh-lead{grid-column:2;color:var(--mut);font-size:14.5px;max-width:46em}
@media (max-width:720px){.sec{padding-block:88px 0}.sh{margin-bottom:36px;gap:4px 12px}.sh-no{margin-top:.4em}}

/* ---------- reveal ---------- */
.rv{transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
.rv.rv-wait{opacity:.08;transform:translateY(28px)}

/* ---------- buttons + tags ---------- */
.ctas{display:flex;flex-wrap:wrap;gap:12px}
.btn{position:relative;display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-family:inherit;font-weight:700;font-size:14px;padding:15px 26px;border-radius:999px;border:0;cursor:pointer;transition:transform .3s,box-shadow .3s,background-position .4s;overflow:hidden}
.btn-grad{background:var(--grad);background-size:200% 100%;color:#fff;box-shadow:0 14px 30px -12px var(--g1)}
.btn-grad:hover{background-position:100% 0;box-shadow:0 18px 36px -10px var(--g1)}
.btn i{font-style:normal;transition:transform .3s}.btn:hover i{transform:translateX(4px)}
.btn-ghost{background:#fff;border:1px solid var(--line2);color:var(--fg)}
.btn-ghost:hover{border-color:var(--fg)}
.tag{display:inline-block;font-size:11.5px;font-weight:700;padding:2px 11px;border-radius:999px;border:1px solid var(--line2);color:var(--mut);white-space:nowrap;line-height:1.8;background:#fff}
.tag.talk{background:var(--grad);border-color:transparent;color:#fff}
.tag.deal{border-color:var(--g1);color:var(--g1)}
.tag.event{background:var(--tint);border-color:var(--tint2);color:var(--tint-ink)}

/* ---------- cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}

/* ---------- eyebrow ---------- */
.eyebrow{display:flex;align-items:center;gap:10px;font-family:var(--f-en);font-size:12px;font-weight:500;letter-spacing:.24em;color:var(--fg2);margin:0}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--g1);animation:ping 2.4s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--g1) 60%,transparent)}80%,100%{box-shadow:0 0 0 12px transparent}}
.line{display:block;overflow:hidden;padding-bottom:.06em}
.line>span{display:inline-block;animation:rise 1s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{transform:translateY(110%)}to{transform:none}}
.fade-up{animation:fu 1s .6s cubic-bezier(.2,.8,.2,1) both}
@keyframes fu{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ---------- marquee ---------- */
.marquee{overflow:hidden;padding-block:28px;border-block:1px solid var(--line);background:color-mix(in srgb,#fff 55%,transparent)}
.mq-track{display:flex;width:max-content;will-change:transform;animation:mq 46s linear infinite}
.mq-track span{font-family:var(--f-en);font-weight:200;font-size:clamp(44px,7vw,104px);line-height:1;letter-spacing:-.03em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px color-mix(in srgb,var(--fg) 55%,transparent)}
.mq-track i{font-style:normal;-webkit-text-stroke:0;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:300;margin:0 .25em}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- contact band ---------- */
.contact{position:relative;overflow:hidden;margin:130px max(16px,env(safe-area-inset-left,0px)) 0;border-radius:36px;background:linear-gradient(120deg,var(--g3),var(--g1) 40%,var(--g2) 80%,var(--g3));background-size:220% 220%;color:#fff;isolation:isolate}
@keyframes flowbg{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.contact::before{content:"";position:absolute;inset:0;background:radial-gradient(600px circle at 85% 20%,#fff5,transparent 60%),repeating-linear-gradient(90deg,#fff1 0 1px,transparent 1px 60px),repeating-linear-gradient(0deg,#fff1 0 1px,transparent 1px 60px);z-index:-1}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;padding-block:96px}
.contact .label{font-family:var(--f-en);font-size:13px;font-weight:500;letter-spacing:.24em;text-transform:uppercase;opacity:.85}
.contact h2{font-size:clamp(32px,4.2vw,54px);line-height:1.3;margin-top:12px}
.contact .lead{margin-top:18px;opacity:.92;max-width:32em}
.glass{padding:30px;border-radius:24px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4)}
.contact dl{margin:28px 0 0;display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px 20px;font-size:14px}
.contact dt{opacity:.8}.contact dd{margin:0;min-width:0;font-weight:500}
.contact dd a{text-decoration:underline;text-decoration-color:rgba(255,255,255,.6);text-underline-offset:4px;overflow-wrap:anywhere}
@media (max-width:860px){.contact{border-radius:26px;margin-top:88px}.contact-grid{grid-template-columns:1fr;padding-block:64px;gap:32px}}

/* ---------- form (inside contact band) ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.form .full{grid-column:1/-1}
.form label{display:block;font-size:12.5px;font-weight:700;margin-bottom:6px}
.form label b{font-weight:700;font-size:11px;margin-left:6px;padding:1px 7px;border-radius:999px;background:#fff;color:var(--g3)}
.form input,.form textarea{width:100%;font:inherit;font-size:15px;color:var(--fg);padding:12px 14px;border-radius:12px;border:1px solid transparent;background:#fff;outline:none;transition:box-shadow .2s,border-color .2s}
.form input:focus,.form textarea:focus{box-shadow:0 0 0 3px #ffffff80}
.form .err input,.form .err textarea{border-color:#7a0b10;box-shadow:0 0 0 3px #7a0b1033}
.form .msg{display:block;min-height:1.2em;font-size:12px;margin-top:4px;color:#fff}
.form textarea{min-height:150px;resize:vertical}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form .agree{font-size:12px;opacity:.9}
.form .btn{justify-self:start;background:#fff;color:var(--g3);box-shadow:0 14px 30px -14px #6b0a0a}
.form .btn:disabled{opacity:.6;cursor:wait}
.form-status{grid-column:1/-1;font-size:13.5px;font-weight:700;min-height:1.4em}
.form-done{display:none;text-align:center;padding:40px 10px}
.form-done.show{display:block}
.form-done b{display:block;font-size:22px;margin-bottom:8px}
@media (max-width:560px){.form{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.foot{padding-block:64px 28px;font-size:13px;color:var(--mut)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.2fr) repeat(2,minmax(0,1fr));gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.foot .brand{font-size:22px;color:var(--fg)}
.foot .tagline{margin-top:10px}
.foot h4{font-size:12px;font-weight:700;color:var(--fg);margin-bottom:12px;letter-spacing:.08em}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.foot ul a{text-decoration:none;transition:color .2s}
.foot ul a:hover{color:var(--g1)}
.foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:24px;font-size:12px}
@media (max-width:720px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  #grid-canvas{position:fixed;inset:0;width:100vw;height:100vh;z-index:-1;pointer-events:none;opacity:.55;background-image:linear-gradient(rgba(120,40,10,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(120,40,10,.10) 1px,transparent 1px);background-size:60px 60px}
}

/* 画面外のアニメーションは止める（common.js が .is-off を付け外しする） */
.is-off,.is-off *{animation-play-state:paused!important}