:root{
  --paper:#f1f0ea;
  --paper-2:#e8e6de;
  --ink:#151713;
  --muted:#6f736b;
  --line:rgba(21,23,19,.18);
  --accent:#e64b2e;
  --dark:#171916;
  --light:#f5f3ed;
  --ease:cubic-bezier(.16,1,.3,1);
  --mx:50%;
  --my:50%;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;overflow-x:hidden;letter-spacing:.02em}
body::before{content:"";position:fixed;inset:0;z-index:999;pointer-events:none;opacity:.04;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitchTiles'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.75'/%3E%3C/svg%3E")}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit}
.wrap{width:min(1480px,calc(100% - 64px));margin-inline:auto}
.progress{position:fixed;top:0;left:0;width:0;height:3px;background:var(--accent);z-index:1300}
.cursor{position:fixed;z-index:1400;width:44px;height:44px;border:1px solid rgba(230,75,46,.7);border-radius:50%;pointer-events:none;transform:translate(-50%,-50%);opacity:0;transition:width .25s var(--ease),height .25s var(--ease),background .25s var(--ease),opacity .2s}
.cursor.is-link{width:68px;height:68px;background:rgba(230,75,46,.08)}

header{position:fixed;inset:0 0 auto;z-index:1200;background:rgba(241,240,234,.76);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);transition:transform .45s var(--ease)}
header.is-hidden{transform:translateY(-110%)}
.head{height:84px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}
.brand{display:inline-flex;align-items:center;gap:11px;width:max-content}
.brand-mark{display:block;width:34px;height:auto}
.brand small{font-size:8px;letter-spacing:.2em;color:var(--muted)}
.head-note{font-size:10px;letter-spacing:.2em;color:var(--muted)}
.nav{justify-self:end;display:flex;gap:28px;font-size:11px}
.nav a{position:relative;padding:8px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1);transform-origin:left}

.eyebrow{display:flex;align-items:center;gap:14px;font-size:10px;letter-spacing:.18em;color:var(--muted)}
.eyebrow::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 7px rgba(230,75,46,.08)}
.eyebrow.inverse{color:rgba(245,243,237,.65)}

.hero{min-height:100svh;padding:132px 0 34px;display:grid;align-items:end}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.03fr) minmax(420px,.97fr);gap:34px;min-height:calc(100svh - 166px)}
.hero-copy{display:flex;flex-direction:column;justify-content:space-between;padding:3vh 0 10px}
.hero-title{margin:7vh 0 5vh;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(62px,7.2vw,118px);font-weight:500;line-height:1.02;letter-spacing:-.08em}
.hero-title .line{display:block;overflow:hidden;padding:.08em .06em .12em 0;margin:-.08em 0 -.12em}
.hero-title .line span{display:block;transform:translateY(115%);animation:titleUp 1.2s var(--ease) forwards}
.hero-title .line:nth-child(2) span{animation-delay:.12s}
.hero-title .line:nth-child(3) span{animation-delay:.24s}
.hero-title em{font-style:normal;color:var(--accent)}
@keyframes titleUp{to{transform:none}}
.hero-bottom{display:grid;grid-template-columns:minmax(0,520px) auto;gap:40px;align-items:end}
.hero-lead{margin:0;font-size:14px;line-height:2.05;color:#3f433d}
.since{font-family:Georgia,"Times New Roman",serif;font-size:clamp(54px,6.3vw,92px);line-height:.8;color:var(--accent);letter-spacing:-.05em}
.since small{display:block;margin-top:16px;font-family:inherit;font-size:9px;letter-spacing:.2em;color:var(--muted);text-align:right}
.hero-visual{position:relative;min-height:calc(100svh - 166px);overflow:hidden;border-radius:360px 360px 10px 10px;background:#222;clip-path:inset(0 0 100% 0);animation:unveil 1.45s .15s var(--ease) forwards}
@keyframes unveil{to{clip-path:inset(0)}}
.hero-visual::before{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(10,12,10,.04) 35%,rgba(10,12,10,.56)),radial-gradient(circle at var(--mx) var(--my),transparent 0 8%,rgba(0,0,0,.22) 42%)}
.hero-visual::after{content:"";position:absolute;inset:18px;z-index:3;border:1px solid rgba(255,255,255,.36);border-radius:350px 350px 5px 5px;pointer-events:none}
.hero-visual img{position:absolute;inset:0;width:100%;height:112%;object-fit:cover;filter:saturate(.52) contrast(1.08);transform:scale(1.04);will-change:transform}
.visual-caption{position:absolute;left:46px;right:46px;bottom:38px;z-index:4;color:#fff;display:flex;justify-content:space-between;gap:20px;padding-top:14px;border-top:1px solid rgba(255,255,255,.55);font-size:9px;letter-spacing:.16em}
.side-label{position:absolute;right:17px;top:50%;writing-mode:vertical-rl;transform:translateY(-50%);font-size:9px;letter-spacing:.22em;color:var(--muted)}

.marquee{overflow:hidden;border-block:1px solid var(--line);padding:16px 0}
.marquee-track{display:flex;width:max-content;gap:26px;align-items:center;animation:marquee 30s linear infinite;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:14px;letter-spacing:.12em}
.marquee-track i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
@keyframes marquee{to{transform:translateX(-50%)}}

.section{padding:155px 0}
.section + .section{border-top:1px solid var(--line)}
.section-grid{display:grid;grid-template-columns:.62fr 1.38fr;gap:9vw}
.section-index{font-size:10px;letter-spacing:.17em;color:var(--muted);text-transform:uppercase}
.section-index b{display:block;margin-top:16px;width:72px;height:1px;background:var(--line)}
.jp-heading{margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(46px,6.2vw,92px);font-weight:500;line-height:1.25;letter-spacing:-.065em}
.jp-heading em{font-style:normal;color:var(--accent)}
.body-large{margin:54px 0 0;max-width:800px;font-size:clamp(18px,2.1vw,29px);line-height:1.85;letter-spacing:-.02em}
.body-small{font-size:13px;line-height:2;color:var(--muted)}

.domains{position:relative;padding:145px 0;background:var(--dark);color:var(--light);overflow:hidden}
.domains::before{content:"";position:absolute;width:760px;aspect-ratio:1;border-radius:50%;left:var(--mx);top:var(--my);transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(230,75,46,.25),transparent 66%);pointer-events:none}
.domain-head{position:relative;display:grid;grid-template-columns:1fr minmax(260px,390px);gap:50px;align-items:end;margin-bottom:74px}
.domain-head .jp-heading{font-size:clamp(58px,8.4vw,125px);line-height:1.05}
.domain-head p{margin:0;color:#b5b8b1;font-size:13px;line-height:2}
.domain-list{position:relative;border-top:1px solid rgba(255,255,255,.22)}
.domain-item{display:grid;grid-template-columns:90px 1fr minmax(220px,430px) 34px;gap:30px;align-items:center;min-height:176px;border-bottom:1px solid rgba(255,255,255,.22);transition:background .45s,color .45s,padding .45s var(--ease)}
.domain-item:hover{background:var(--light);color:var(--ink);padding-inline:28px}
.domain-no{font-size:10px;color:var(--accent)}
.domain-item h3{margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(38px,4.4vw,65px);font-weight:500;letter-spacing:-.055em}
.domain-item p{margin:0;color:#b5b8b1;font-size:12px;line-height:1.9;transition:color .45s}
.domain-item:hover p{color:var(--muted)}
.domain-arrow{font-size:24px;transition:transform .4s var(--ease)}
.domain-item:hover .domain-arrow{transform:rotate(45deg)}

.history{padding:165px 0}
.history-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:8vw}
.big-year{position:sticky;top:130px;align-self:start;font-family:Georgia,"Times New Roman",serif;font-size:clamp(120px,18vw,290px);line-height:.7;letter-spacing:-.1em;color:var(--accent)}
.history-copy .jp-heading,.section-copy .jp-heading{margin-top:42px}
.domain-head .big-year{position:static;margin-bottom:60px}
.history-copy>.body-small{margin-top:42px;max-width:680px;color:#4f534c;font-size:15px}
.accordion{margin-top:75px;border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-button{width:100%;border:0;background:none;padding:23px 0;display:grid;grid-template-columns:150px 1fr 30px;gap:20px;text-align:left;cursor:pointer}
.acc-button small{font-size:10px;color:var(--muted)}
.acc-button span{font-size:13px}
.acc-button i{font-style:normal;font-size:20px;transition:transform .35s}
.acc-item.open .acc-button i{transform:rotate(45deg)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .55s var(--ease)}
.acc-panel p{margin:0;padding:0 0 26px 170px;color:var(--muted);font-size:12px;line-height:1.9}

.notice{padding:0 0 155px}
.notice-box{position:relative;min-height:560px;border:1px solid var(--ink);display:grid;place-items:center;text-align:center;padding:60px;overflow:hidden}
.notice-box::before,.notice-box::after{content:"";position:absolute;width:280px;aspect-ratio:1;border:1px solid var(--line);border-radius:50%;animation:orbit 16s linear infinite}
.notice-box::after{width:520px;animation-duration:27s;animation-direction:reverse}
@keyframes orbit{to{transform:rotate(360deg) scale(1.04)}}
.notice-inner{position:relative;z-index:2;max-width:880px}
.notice-inner .jp-heading{font-size:clamp(48px,7vw,105px);line-height:1.15}
.notice-inner p{max-width:670px;margin:28px auto 0;font-size:13px;line-height:2}
.tag{display:inline-flex;margin-top:28px;padding:12px 18px;background:var(--ink);color:var(--light);font-size:9px;letter-spacing:.16em}

footer{background:var(--paper-2);border-top:1px solid var(--line);padding:65px 0 30px}
.footer-main{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:end}
.footer-logo img{display:block;width:clamp(90px,14vw,170px);height:auto}
.footer-info{text-align:right;font-size:11px;line-height:2}
.footer-contact{display:block;margin-top:10px;color:var(--muted);font-size:10px;letter-spacing:.06em}
.footer-bottom{margin-top:62px;padding-top:18px;border-top:1px solid rgba(21,23,19,.32);display:flex;justify-content:space-between;gap:30px;font-size:9px;letter-spacing:.12em}
.to-top{border:0;background:none;cursor:pointer;padding:0;font-size:inherit;letter-spacing:inherit}

/* Sub pages */
.page-hero{min-height:90svh;padding:140px 0 40px;display:grid;align-items:end}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(400px,.92fr);gap:5vw;min-height:calc(90svh - 180px);align-items:end}
.page-title{margin:6vh 0 4vh;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(64px,8.8vw,135px);font-weight:500;line-height:1.13;letter-spacing:-.08em}
.page-title small{display:block;margin-top:24px;font-family:Arial,sans-serif;font-size:10px;font-weight:400;letter-spacing:.23em;color:var(--muted)}
.page-lead{max-width:650px;margin:0;font-size:15px;line-height:2.05}
.page-image{position:relative;min-height:calc(90svh - 180px);overflow:hidden;border-radius:320px 320px 8px 8px;background:#222}
.page-image::before{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,transparent 35%,rgba(0,0,0,.52)),radial-gradient(circle at var(--mx) var(--my),transparent 0 8%,rgba(0,0,0,.22) 42%)}
.page-image::after{content:"";position:absolute;inset:17px;z-index:3;border:1px solid rgba(255,255,255,.38);border-radius:310px 310px 4px 4px}
.page-image img{position:absolute;inset:0;width:100%;height:112%;object-fit:cover;filter:saturate(.48) contrast(1.1);transform:scale(1.04);will-change:transform}
.page-image-caption{position:absolute;z-index:4;left:42px;right:42px;bottom:34px;padding-top:13px;border-top:1px solid rgba(255,255,255,.5);color:#fff;display:flex;justify-content:space-between;font-size:9px;letter-spacing:.16em}
.subsection{padding:145px 0;border-top:1px solid var(--line)}
.subsection-grid{display:grid;grid-template-columns:.68fr 1.32fr;gap:8vw}
.subsection .jp-heading{font-size:clamp(45px,6vw,86px)}
.prose{padding-top:50px;font-size:clamp(18px,2vw,28px);line-height:1.9;letter-spacing:-.02em}
.prose p{margin:0 0 34px}
.company-data{display:grid;grid-template-columns:.55fr 1.45fr;gap:8vw}
.data-list{margin:0;border-top:1px solid var(--line)}
.data-row{display:grid;grid-template-columns:170px 1fr;gap:30px;padding:25px 0;border-bottom:1px solid var(--line)}
.data-row dt{font-size:11px;color:var(--muted)}
.data-row dd{margin:0;font-size:14px;line-height:1.8}
.scope-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.scope-card{min-height:400px;padding:30px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);display:flex;flex-direction:column;position:relative;overflow:hidden;transition:background .45s,color .45s}
.scope-card:hover{background:var(--ink);color:var(--light)}
.scope-meta{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.15em}
.scope-meta b{color:var(--accent)}
.scope-card h3{margin:auto 0 30px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(38px,4.5vw,64px);font-weight:500;letter-spacing:-.055em}
.scope-card p{max-width:460px;margin:0;color:var(--muted);font-size:12px;line-height:1.95;transition:color .45s}
.scope-card:hover p{color:#b8bbb4}
.scope-card i{position:absolute;right:28px;bottom:26px;font-style:normal;font-size:24px}
.access-layout{display:grid;grid-template-columns:1fr 1fr;gap:7vw}
.access-layout>*{min-width:0}
.address h2{margin:42px 0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(34px,4.6vw,66px);font-weight:500;line-height:1.4;letter-spacing:-.045em}
.address h2 span{font-size:.62em;color:var(--muted)}
.route{display:flex;justify-content:space-between;gap:30px;padding:23px 0;border-block:1px solid var(--line)}
.route small{font-size:10px;color:var(--muted)}
.route strong{text-align:right;font-size:14px;line-height:1.7}
.map-link{display:inline-flex;margin-top:28px;padding:14px 18px;background:var(--ink);color:var(--light);font-size:10px;letter-spacing:.1em;transition:transform .35s var(--ease),background .35s}
.map-link:hover{transform:translateY(-3px);background:var(--accent)}
.map-embed{min-height:540px;border-radius:8px;background:var(--paper-2);position:relative;overflow:hidden;border:1px solid var(--line)}
.map-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

.reveal{opacity:0;transform:translateY(42px);transition:opacity .95s var(--ease),transform .95s var(--ease)}
.reveal.visible{opacity:1;transform:none}

/* 見出しが途中で折り返さないよう、カラム幅から文字サイズの上限を計算 */
@media(min-width:981px){
  .domain-head .jp-heading{font-size:clamp(40px,calc((min(1480px,100vw - 64px) - 440px) / 8.8),125px)}
  .history-copy .jp-heading{font-size:min(clamp(46px,6.2vw,92px),calc((min(1480px,100vw - 64px) - 8vw) * .55 / 8.8))}
  .subsection-grid .jp-heading.is-long{font-size:min(clamp(45px,6vw,86px),calc((min(1480px,100vw - 64px) - 8vw) * .34 / 6.9))}
  .notice-inner .jp-heading{font-size:clamp(48px,7vw,100px)}
}
@media(max-width:980px){
  .domain-head .jp-heading{font-size:min(8.4vw,calc((100vw - 36px) / 8.8))}
  .wrap{width:calc(100% - 36px)}
  .head{height:72px;grid-template-columns:1fr auto}.head-note{display:none}.nav{gap:15px;font-size:10px}
  .hero{padding-top:105px}.hero-grid,.page-hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{min-height:72svh}.hero-visual{min-height:0;height:105vw}.side-label{display:none}
  .section,.subsection{padding:105px 0}.section-grid,.history-grid,.subsection-grid,.company-data,.access-layout{grid-template-columns:1fr}.section-grid,.subsection-grid{gap:45px}
  .domain-head{grid-template-columns:1fr}.domain-list{margin-top:40px}.domain-item{grid-template-columns:55px 1fr 30px;padding:28px 0}.domain-item p{grid-column:2 / -1}.domain-item:hover{padding-inline:16px}
  .big-year{position:static;margin-bottom:50px}.notice{padding-bottom:105px}.notice-box{min-height:500px}
  .page-hero{padding-top:110px}.page-hero-grid{min-height:auto}.page-image{height:100vw;min-height:0;margin-top:40px}
  .scope-grid{grid-template-columns:1fr}.map-embed{min-height:420px}.cursor{display:none}
}
@media(max-width:620px){
  .wrap{width:calc(100% - 28px)}
  .brand small{display:none}.nav a:first-child{display:none}.nav{gap:12px;font-size:9px}
  .hero-title{font-size:min(16.8vw,calc((100vw - 28px) / 5.9))}.hero-bottom{grid-template-columns:1fr}.since{margin-top:24px}.since small{text-align:left}
  .visual-caption,.page-image-caption{left:25px;right:25px;bottom:24px}.marquee-track{font-size:12px}
  .section,.subsection{padding:85px 0}.jp-heading{font-size:min(13vw,calc((100vw - 28px) / 8.8))}.domain-head .jp-heading{font-size:min(17vw,calc((100vw - 28px) / 8.8))}.notice-inner .jp-heading{font-size:min(13vw,calc((100vw - 72px) / 8.8))}.domains{padding:95px 0}
  .domain-item{grid-template-columns:42px 1fr 24px;gap:14px;min-height:145px}.domain-item h3{font-size:12vw}.domain-item p{font-size:11px}
  .acc-button{grid-template-columns:95px 1fr 25px}.acc-panel p{padding-left:115px}
  .notice-box{padding:32px 20px}.notice-box::after{width:390px}
  .footer-main{grid-template-columns:1fr}.footer-info{text-align:left}.footer-bottom{flex-direction:column}
  .page-title{font-size:18vw}.data-row{grid-template-columns:100px 1fr;gap:18px}.scope-card{min-height:330px}.access-layout{gap:55px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}