/* ============================================================
   株式会社 羅海（RAUMI）
   和紙と切り絵。北斎の大波のように、ベロ藍と生成りの紙を重ねる。
   見出し＝しっぽり明朝 B1／本文＝Zen角ゴシック New／英字＝Cormorant Garamond
   ============================================================ */
:root{
  --washi:#EFE3CE;--washi-2:#E6D6BB;--paper:#F7EFE2;--kinari:#F3EADB;
  --ink:#1D2A39;--sub:#5A6878;--dim:#8A8F94;
  --ai:#1F3B5C;--ai-deep:#13263F;--ai-2:#2F5680;--ai-3:#6F8CAC;--ai-4:#B9C7D6;
  --shu:#B23A2C;--yamabuki:#E2A84B;
  --line:rgba(31,59,92,.2);--line-2:rgba(31,59,92,.36);
  --f-min:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-go:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",sans-serif;
  --f-en:"Cormorant Garamond","Times New Roman",serif;
  --gut:clamp(22px,5.4vw,72px);--wrap:1280px;--hd:64px;
  --e-out:cubic-bezier(.16,1,.3,1);--e-io:cubic-bezier(.65,0,.35,1);
  /* 紙を重ねた影（切り絵の厚み） */
  --sh-paper:0 1px 0 rgba(90,60,20,.06),0 2px 4px rgba(40,30,15,.08),0 14px 28px -16px rgba(19,38,63,.4);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;background:var(--washi);scroll-padding-top:84px}
body{min-height:100%;font-family:var(--f-go);font-size:15px;line-height:2;letter-spacing:.05em;color:var(--ink);background:var(--washi);overflow-x:clip;font-feature-settings:"palt";-webkit-font-smoothing:antialiased}
/* 和紙の繊維 */
body::before{content:"";position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.5;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .36 0 0 0 0 .24 0 0 0 .16 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
::selection{background:rgba(31,59,92,.2);color:var(--ai-deep)}
:focus-visible{outline:2px solid var(--shu);outline-offset:3px;border-radius:2px}
/* inline-block にする：Safari は <wbr> 直後の nowrap で改行すると、前の文字を二重に描くことがある */
.nw{display:inline-block;white-space:nowrap}
/* 見出しは文節の切れ目（<wbr>）でだけ折り返す */
h1,h2,h3,b,.catch,.hero-p,.news-list p,.lk small{word-break:keep-all;overflow-wrap:anywhere}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.en{font-family:var(--f-en);font-weight:500;letter-spacing:.14em;font-feature-settings:normal}

/* 青海波（藍の地に使う） */
.seigaiha{background-color:var(--ai);
  background-image:radial-gradient(circle at 100% 150%,var(--ai) 24%,rgba(255,255,255,.07) 24%,rgba(255,255,255,.07) 28%,var(--ai) 28%,var(--ai) 36%,rgba(255,255,255,.07) 36%,rgba(255,255,255,.07) 40%,transparent 40%,transparent),
  radial-gradient(circle at 0 150%,var(--ai) 24%,rgba(255,255,255,.07) 24%,rgba(255,255,255,.07) 28%,var(--ai) 28%,var(--ai) 36%,rgba(255,255,255,.07) 36%,rgba(255,255,255,.07) 40%,transparent 40%,transparent),
  radial-gradient(circle at 50% 100%,rgba(255,255,255,.07) 10%,var(--ai) 10%,var(--ai) 23%,rgba(255,255,255,.07) 23%,rgba(255,255,255,.07) 30%,var(--ai) 30%,var(--ai) 43%,rgba(255,255,255,.07) 43%,rgba(255,255,255,.07) 50%,var(--ai) 50%,var(--ai) 63%,rgba(255,255,255,.07) 63%,rgba(255,255,255,.07) 71%,transparent 71%,transparent),
  radial-gradient(circle at 100% 50%,rgba(255,255,255,.07) 5%,var(--ai) 5%,var(--ai) 15%,rgba(255,255,255,.07) 15%,rgba(255,255,255,.07) 20%,var(--ai) 20%,var(--ai) 29%,rgba(255,255,255,.07) 29%,rgba(255,255,255,.07) 34%,var(--ai) 34%,var(--ai) 44%,rgba(255,255,255,.07) 44%,rgba(255,255,255,.07) 49%,transparent 49%,transparent),
  radial-gradient(circle at 0 50%,rgba(255,255,255,.07) 5%,var(--ai) 5%,var(--ai) 15%,rgba(255,255,255,.07) 15%,rgba(255,255,255,.07) 20%,var(--ai) 20%,var(--ai) 29%,rgba(255,255,255,.07) 29%,rgba(255,255,255,.07) 34%,var(--ai) 34%,var(--ai) 44%,rgba(255,255,255,.07) 44%,rgba(255,255,255,.07) 49%,transparent 49%,transparent);
  background-size:64px 32px}

/* ---------- 見出しの部品：朱の落款に番号、横に伸びる罫線 ---------- */
.lbl{display:flex;align-items:center;gap:12px;margin-bottom:22px;font-size:13px;font-weight:500;letter-spacing:.16em;color:var(--ai)}
.lbl .n{display:inline-grid;place-items:center;min-width:28px;height:28px;padding:0 6px;background:var(--shu);color:#F7EFE2;border-radius:2px;font-family:var(--f-en);font-weight:600;font-size:14px;letter-spacing:.04em;box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.lbl::after{content:"";flex:1 1 40px;height:1px;background:var(--line-2)}
.cta .lbl::after{flex:0 0 40px;background:rgba(247,239,226,.4)}
.h2{font-family:var(--f-min);font-weight:700;font-size:clamp(1.7rem,6.8vw,3.1rem);line-height:1.6;letter-spacing:.08em;text-wrap:balance;color:var(--ai-deep)}
.lead{margin-top:26px;max-width:36em;color:var(--sub);font-size:15px;line-height:2.15}

/* 章の見出し：罫線つきラベル＋大きな英字 */
.sh{margin-bottom:clamp(36px,5vw,64px)}
.sh .lbl{margin-bottom:0}
.sh-en{margin-top:clamp(10px,1.8vw,22px);font-family:var(--f-en);font-style:italic;font-weight:400;font-size:clamp(3rem,13vw,9.6rem);line-height:.95;letter-spacing:-.005em;color:var(--ai);white-space:nowrap}

/* ---------- ボタン ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:20px;min-height:56px;padding:0 28px 0 30px;border-radius:2px;background:var(--ai);color:var(--paper);font-size:14.5px;font-weight:500;letter-spacing:.14em;overflow:hidden;isolation:isolate;box-shadow:var(--sh-paper);transition:background .4s var(--e-out),transform .2s ease}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--shu);transform:scaleX(0);transform-origin:left;transition:transform .55s var(--e-out)}
.btn .ar{position:relative;width:26px;height:1px;background:currentColor;transition:width .45s var(--e-out)}
.btn .ar::after{content:"";position:absolute;right:0;top:-3.5px;width:8px;height:8px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
@media (hover:hover){.btn:hover::before{transform:scaleX(1)}.btn:hover .ar{width:38px}}
.btn:active{transform:scale(.98)}
.tlink{display:inline-flex;align-items:center;gap:14px;font-size:14px;letter-spacing:.12em;color:var(--ai);padding:10px 0;border-bottom:1px solid var(--line-2);transition:border-color .3s ease,color .3s ease}
.tlink .ar{position:relative;width:22px;height:1px;background:currentColor;transition:width .4s var(--e-out)}
.tlink .ar::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
@media (hover:hover){.tlink:hover{color:var(--shu);border-color:var(--shu)}.tlink:hover .ar{width:34px}}
.tl-in{border-bottom:1px solid var(--line-2);transition:color .3s ease,border-color .3s ease}
@media (hover:hover){.tl-in:hover{color:var(--shu);border-color:var(--shu)}}
/* 丸の中の矢印 */
.arc{position:relative;flex:0 0 auto;display:inline-block;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);color:var(--ai);transition:background .4s var(--e-out),border-color .4s var(--e-out),color .4s var(--e-out)}
.arc::before{content:"";position:absolute;left:13px;top:50%;width:15px;height:1px;background:currentColor}
.arc::after{content:"";position:absolute;left:21px;top:calc(50% - 3.5px);width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}

/* ============================================================
   ヘッダー（和紙の帯）
   ============================================================ */
.hd{position:fixed;top:0;left:0;right:0;z-index:90;height:var(--hd);display:flex;align-items:center;background:rgba(239,227,206,.86);-webkit-backdrop-filter:blur(12px) saturate(1.1);backdrop-filter:blur(12px) saturate(1.1);transition:box-shadow .45s ease}
.hd::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);opacity:0;transition:opacity .45s ease}
.hd.is-s{box-shadow:0 10px 24px -20px rgba(19,38,63,.5)}
.hd.is-s::after{opacity:1}
.hd-in{width:100%;max-width:1440px;margin-inline:auto;padding-inline:var(--gut);display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:40px;height:40px}
.brand-t{display:flex;flex-direction:column;line-height:1.25}
.brand-t b{font-family:var(--f-min);font-weight:700;font-size:15px;letter-spacing:.16em;white-space:nowrap;color:var(--ai-deep)}
.brand-t small{font-family:var(--f-en);font-weight:500;font-size:11px;letter-spacing:.42em;color:var(--sub)}
.gnav{display:none}
.menu-btn{position:relative;z-index:120;display:flex;align-items:center;gap:12px;height:44px;padding:0 4px;font-family:var(--f-en);font-weight:600;font-size:13px;letter-spacing:.24em;color:var(--ai-deep)}
.menu-btn i{position:relative;display:block;width:28px;height:8px}
.menu-btn i::before,.menu-btn i::after{content:"";position:absolute;left:0;right:0;height:1px;background:currentColor;transition:transform .5s var(--e-out),top .5s var(--e-out)}
.menu-btn i::before{top:0}.menu-btn i::after{top:7px}
.is-menu .menu-btn i::before{top:4px;transform:rotate(25deg)}
.is-menu .menu-btn i::after{top:4px;transform:rotate(-25deg)}
@media (max-width:359px){.menu-btn span{display:none}}
/* メニューを開いている間は、ヘッダー（ロゴと閉じるボタン）をメニューの上に出す */
.is-menu .hd{z-index:130;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:none}
.is-menu .hd::after{opacity:0}

/* スマホのメニュー：和紙が広がる */
.mnav{position:fixed;inset:0;z-index:110;display:flex;flex-direction:column;overflow-y:auto;overscroll-behavior:contain;padding:calc(var(--hd) + 28px) var(--gut) 36px;background:var(--washi);
  clip-path:circle(0% at calc(100% - 46px) 32px);transition:clip-path .9s var(--e-io);visibility:hidden}
.is-menu .mnav{clip-path:circle(150% at calc(100% - 46px) 32px);visibility:visible}
.mnav::before{content:"";position:absolute;left:0;right:0;bottom:0;height:34%;background:url(../img/crop-fuji.jpg) center 40%/cover no-repeat;opacity:.9;-webkit-mask-image:linear-gradient(180deg,transparent,#000 40%);mask-image:linear-gradient(180deg,transparent,#000 40%);pointer-events:none}
.mnav ol{position:relative;counter-reset:m;margin-top:6px}
.mnav li{border-bottom:1px solid var(--line);opacity:0;transform:translateY(16px);transition:opacity .6s var(--e-out),transform .6s var(--e-out)}
.is-menu .mnav li{opacity:1;transform:none}
.is-menu .mnav li:nth-child(1){transition-delay:.25s}.is-menu .mnav li:nth-child(2){transition-delay:.3s}.is-menu .mnav li:nth-child(3){transition-delay:.35s}
.is-menu .mnav li:nth-child(4){transition-delay:.4s}.is-menu .mnav li:nth-child(5){transition-delay:.45s}.is-menu .mnav li:nth-child(6){transition-delay:.5s}
.mnav ol a{display:flex;align-items:baseline;gap:18px;padding:16px 0;font-family:var(--f-min);font-weight:700;font-size:21px;letter-spacing:.12em;color:var(--ai-deep)}
.mnav ol a::before{counter-increment:m;content:counter(m,decimal-leading-zero);font-family:var(--f-en);font-weight:600;font-size:13px;letter-spacing:.1em;color:var(--shu)}
.mnav ol a.sub{padding:11px 0 11px 34px;font-size:16px}
.mnav ol a.sub::before{counter-increment:none;content:"—";color:var(--dim)}
.mnav-ft{position:relative;margin-top:auto;padding-top:28px;font-size:12px;line-height:1.9;color:var(--sub)}
.mnav-ft .btn{margin-bottom:22px}

/* ============================================================
   ファーストビュー：切り絵の大波（three.js の紙のジオラマ）＋題箋
   ============================================================ */
.hero{position:relative;height:100svh;min-height:620px;max-height:1080px;overflow:hidden;isolation:isolate;background:#E8D7BE}
.hero-art{position:absolute;left:0;right:0;top:var(--hd);bottom:0;z-index:-1;overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:30% 60%;transform:scale(1.08);opacity:0;transition:opacity 1.4s ease,transform 2.6s var(--e-out)}
.is-ready .hero-img{opacity:1;transform:none}
#kirie{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity 1.2s ease}
.has-3d #kirie{opacity:1}
.has-3d .hero-img{visibility:hidden}
/* 下端は紙の色へ溶かす */
.hero-art::after{content:"";position:absolute;left:0;right:0;bottom:0;height:16%;background:linear-gradient(180deg,rgba(239,227,206,0),var(--washi));pointer-events:none}
.hero-in{position:absolute;top:calc(var(--hd) + 22px);right:var(--gut);display:flex;flex-direction:row-reverse;align-items:flex-start;gap:14px;translate:0 calc(var(--hs,0) * -10vh);opacity:calc(1 - var(--hs,0) * 1.4)}
/* 題箋（だいせん）：浮世絵の題を囲む紙の枠 */
.hero-title{position:relative;padding:18px 14px;background:var(--kinari);box-shadow:var(--sh-paper);outline:1px solid var(--ai);outline-offset:-6px;opacity:0;transform:translateY(-16px);transition:opacity 1s var(--e-out) .5s,transform 1.2s var(--e-out) .5s}
.hero-h{writing-mode:vertical-rl;font-family:var(--f-min);font-weight:800;font-size:clamp(1.9rem,8.4vw,4.2rem);line-height:1.38;letter-spacing:.16em;color:var(--ai-deep)}
.hero-h > span{display:block}
.hero-h > span + span{margin-right:.08em;padding-top:2.2em}
.hero-sub{display:flex;flex-direction:column;align-items:center;gap:16px;opacity:0;transform:translateY(-10px);transition:opacity 1s var(--e-out) .9s,transform 1.2s var(--e-out) .9s}
.hero-p{writing-mode:vertical-rl;padding:12px 8px;background:rgba(243,234,219,.88);box-shadow:var(--sh-paper);font-family:var(--f-min);font-weight:600;font-size:clamp(12.5px,3.4vw,16px);line-height:1.9;letter-spacing:.16em;color:var(--ai-deep)}
/* 落款（社章を朱で）：最後にぽんと押される */
.hero-seal{width:clamp(44px,11vw,72px);height:auto;opacity:0;transform:scale(1.7) rotate(-14deg);transition:opacity .25s ease 1.55s,transform .55s cubic-bezier(.34,1.56,.64,1) 1.55s;filter:drop-shadow(0 1px 1px rgba(80,20,10,.25))}
.is-ready .hero-title,.is-ready .hero-sub{opacity:1;transform:none}
.is-ready .hero-seal{opacity:.95;transform:none}
.hero-dive{display:none}

/* ============================================================
   セクション共通
   ============================================================ */
.sec{position:relative;padding:clamp(100px,14vw,170px) 0}
.sec + .sec{padding-top:clamp(40px,8vw,90px)}
[data-r]{opacity:0;transform:translateY(30px);transition:opacity 1.2s var(--e-out),transform 1.2s var(--e-out)}
[data-r].is-in{opacity:1;transform:none}
[data-lines] > span{display:block;overflow:hidden;padding-bottom:.06em}
[data-lines] > span > span{display:block;transform:translateY(104%);transition:transform 1.3s var(--e-out)}
[data-lines].is-in > span > span{transform:none}
[data-lines].is-in > span:nth-child(2) > span{transition-delay:.1s}
[data-lines].is-in > span:nth-child(3) > span{transition-delay:.2s}
[data-lines].is-in > span:nth-child(4) > span{transition-delay:.3s}
/* スクロールに合わせて動く量（main.js が --py を入れる） */
[data-par]{translate:0 var(--py,0%)}
/* 本文がスクロールに合わせて一文字ずつ墨がのる */
[data-scrub] .ch{opacity:clamp(.2,calc((var(--p,0) * var(--n,1) - var(--i,0)) / 8 + .2),1)}

/* ---------- お知らせ ---------- */
.news{position:relative}
.news-in{display:grid;gap:16px;padding-top:34px;padding-bottom:20px}
.news-h{display:flex;align-items:baseline;gap:14px;font-family:var(--f-go);font-weight:500;font-size:12.5px;letter-spacing:.16em;color:var(--sub)}
.news-h .en{font-style:italic;font-weight:500;font-size:26px;letter-spacing:.06em;color:var(--ai)}
.news-list{border-top:1px solid var(--line-2)}
.news-list li{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:8px 16px;padding:18px 0;border-bottom:1px solid var(--line)}
.news-list time{font-family:var(--f-en);font-weight:600;font-size:15px;letter-spacing:.08em;color:var(--ai)}
.news-list .cat{justify-self:start;padding:1px 12px;border:1px solid var(--shu);border-radius:2px;font-size:11px;letter-spacing:.12em;color:var(--shu)}
.news-list p{grid-column:1/-1;font-size:14.5px;letter-spacing:.06em}

/* ---------- 私たちについて ---------- */
.about{display:grid;gap:56px}
.about-b{min-width:0}
.about-st{font-family:var(--f-min);font-weight:700;font-size:clamp(1.85rem,7.6vw,3.5rem);line-height:1.62;letter-spacing:.1em;color:var(--ai-deep)}
.about-tx{margin-top:34px;max-width:32em;color:var(--ink);line-height:2.2}
/* 額装した一枚の切り絵 */
.about-fig{order:2;position:relative;margin:0 auto;width:min(78%,420px);padding:12px;background:var(--paper);box-shadow:var(--sh-paper);opacity:0;transform:translateY(50px) rotate(-1.2deg);transition:opacity 1.6s var(--e-out),transform 2s var(--e-out)}
.about-fig.is-in{opacity:1;transform:rotate(-1.2deg)}
.about-fig .fr{overflow:hidden}
.about-fig .fr img{width:100%;height:auto;scale:1.1}
.about-fig figcaption{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-family:var(--f-en);font-style:italic;font-size:13px;letter-spacing:.06em;color:var(--sub)}
.about-fig figcaption img{width:26px;height:26px}
.kw{display:grid;gap:0;margin-top:52px;border-top:1px solid var(--line-2)}
.kw li{display:grid;grid-template-columns:54px 1fr;gap:4px 18px;padding:24px 0;border-bottom:1px solid var(--line)}
.kw .n{grid-row:span 2;font-family:var(--f-en);font-style:italic;font-weight:500;font-size:20px;color:var(--shu);padding-top:2px}
.kw b{font-family:var(--f-min);font-weight:700;font-size:22px;letter-spacing:.16em;color:var(--ai-deep)}
.kw p{font-size:14px;color:var(--sub);line-height:1.9}
.collage{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:140px 170px;gap:10px;max-width:1440px;margin:clamp(70px,10vw,130px) auto 0;padding-inline:var(--gut)}
.collage figure{position:relative;margin:0;overflow:hidden;border-radius:2px;box-shadow:var(--sh-paper)}
.collage figure:first-child{grid-row:1/3}
.collage img{width:100%;height:100%;object-fit:cover;scale:1.14}

/* ---------- 事業：メイン事業だけ大きく ---------- */
.biz-intro{display:grid;gap:22px}
.biz-intro .lead{margin-top:0}
.bizc{display:grid;gap:16px;margin-top:clamp(40px,6vw,72px)}
.bc{position:relative;display:grid;align-content:start;background:var(--paper);box-shadow:var(--sh-paper);border-radius:2px;overflow:hidden;transition:box-shadow .45s ease,opacity 1.2s var(--e-out),transform 1.2s var(--e-out)}
.bc-fig{position:relative;margin:0;aspect-ratio:16/10;overflow:hidden}
.bc-fig img{width:100%;height:100%;object-fit:cover;scale:1.12;transition:transform 1.4s var(--e-out)}
/* 番号は朱の落款 */
.bc-no{position:absolute;left:14px;top:14px;z-index:1;display:grid;place-items:center;width:46px;height:46px;background:var(--shu);color:var(--paper);font-family:var(--f-en);font-weight:600;font-size:20px;letter-spacing:.02em;border-radius:2px;box-shadow:0 2px 6px rgba(60,10,5,.25)}
.bc-b{padding:24px 22px 26px}
.bc .tag{display:flex;align-items:center;gap:10px;font-family:var(--f-en);font-style:italic;font-size:15px;letter-spacing:.06em;color:var(--ai-2)}
.bc .tag em{font-style:normal;padding:2px 10px;border:1px solid var(--shu);border-radius:2px;font-family:var(--f-go);font-size:11px;letter-spacing:.12em;color:var(--shu)}
.bc h3{margin-top:10px;font-family:var(--f-min);font-weight:700;font-size:clamp(1.4rem,5.6vw,2.1rem);line-height:1.5;letter-spacing:.1em;color:var(--ai-deep)}
.bc .catch{margin-top:10px;font-family:var(--f-min);font-weight:600;font-size:15.5px;line-height:1.9;letter-spacing:.06em}
.bc .desc{margin-top:12px;font-size:14px;line-height:2.05;color:var(--sub)}
.bc .more{display:inline-flex;align-items:center;gap:14px;margin-top:20px;font-size:13.5px;letter-spacing:.14em;color:var(--ai)}
@media (hover:hover){
  .bc:hover{box-shadow:0 1px 0 rgba(90,60,20,.06),0 4px 8px rgba(40,30,15,.1),0 26px 40px -18px rgba(19,38,63,.5)}
  .bc:hover .bc-fig img{transform:scale(1.05)}
  .bc:hover .arc,.lk:hover .arc{background:var(--shu);border-color:var(--shu);color:var(--paper)}
}

/* ---------- 大切にしていること：藍の青海波 ---------- */
.val{position:relative;overflow:hidden;isolation:isolate;padding:clamp(100px,13vw,160px) 0;color:var(--paper)}
.val-bg{position:absolute;inset:0;z-index:-1}
.val-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(19,38,63,.35),rgba(19,38,63,0) 30%,rgba(19,38,63,0) 70%,rgba(19,38,63,.45))}
/* 上下の縁は波の切り絵 */
.val::before,.val::after{content:"";position:absolute;left:0;right:0;height:28px;z-index:1;background:radial-gradient(circle at 50% 0,var(--washi) 13px,transparent 14px) 0 0/36px 28px repeat-x}
.val::before{top:-1px}
.val::after{bottom:-1px;transform:scaleY(-1)}
.val .lbl{color:var(--ai-4)}
.val .lbl::after{background:rgba(247,239,226,.3)}
.val .sh-en,.val .h2{color:var(--paper)}
.val-list{display:grid;gap:14px;margin-top:56px}
.val-list li{position:relative;padding:30px 26px 28px;background:var(--paper);color:var(--ink);border-radius:2px;box-shadow:0 18px 30px -18px rgba(0,0,0,.5)}
.val-list .n{font-family:var(--f-en);font-style:italic;font-size:15px;letter-spacing:.08em;color:var(--shu)}
.val-list b{display:block;margin-top:8px;font-family:var(--f-min);font-weight:700;font-size:21px;letter-spacing:.14em;color:var(--ai-deep)}
.val-list p{margin-top:10px;font-size:14px;line-height:2;color:var(--sub)}

/* ---------- 会社概要（抜粋の表） ---------- */
.co{display:grid;gap:44px}
.dl{border-top:1px solid var(--line-2)}
.dl > div{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid var(--line)}
.dl dt{font-size:13px;letter-spacing:.14em;color:var(--sub)}
.dl dd{font-size:15px;line-height:1.95}
.dl dd small{display:block;font-size:12.5px;color:var(--sub)}

/* ---------- 写真リンク2枚 ---------- */
.links{padding-top:clamp(10px,3vw,40px)}
.links-in{display:grid;gap:14px}
.lk{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:clamp(240px,32vw,420px);padding:28px 84px 28px 26px;border-radius:2px;overflow:hidden;isolation:isolate;box-shadow:var(--sh-paper);color:var(--paper)}
.lk img{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;transition:transform 1.6s var(--e-out)}
.lk::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(19,38,63,.08) 0%,rgba(19,38,63,.5) 38%,rgba(19,38,63,.9) 82%)}
.lk .en,.lk b{text-shadow:0 2px 14px rgba(10,20,35,.45)}
.lk .en{font-style:italic;font-weight:500;font-size:clamp(2.6rem,9vw,4.8rem);line-height:1;letter-spacing:.01em}
.lk b{margin-top:10px;font-family:var(--f-min);font-weight:700;font-size:18px;letter-spacing:.16em}
.lk small{margin-top:6px;font-size:13px;line-height:1.8;color:rgba(247,239,226,.82)}
.lk .arc{position:absolute;right:24px;bottom:28px;color:var(--paper);border-color:rgba(247,239,226,.55)}
@media (hover:hover){.lk:hover img{transform:scale(1.05)}}

/* ---------- お問い合わせの帯（藍の青海波） ---------- */
.cta{position:relative;overflow:hidden;isolation:isolate;padding:clamp(110px,16vw,190px) 0;text-align:center;color:var(--paper)}
.cta-bg{position:absolute;inset:0;z-index:-1}
.cta-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(19,38,63,.2),rgba(19,38,63,.65) 75%)}
.cta::before{content:"";position:absolute;left:0;right:0;top:-1px;height:28px;z-index:1;background:radial-gradient(circle at 50% 0,var(--washi) 13px,transparent 14px) 0 0/36px 28px repeat-x}
.cta-rings{display:none}
.cta .lbl{color:var(--ai-4)}
.cta h2{font-family:var(--f-min);font-weight:700;font-size:clamp(1.7rem,6.8vw,3.1rem);line-height:1.6;letter-spacing:.1em;text-wrap:balance}
.cta p{margin:22px auto 40px;max-width:30em;color:rgba(247,239,226,.82);line-height:2.1}
.cta .btn{background:var(--paper);color:var(--ai-deep)}
.cta .btn::before{background:var(--shu)}
@media (hover:hover){.cta .btn:hover{color:var(--paper)}}

/* ============================================================
   下層ページ
   ============================================================ */
.ph-hero{position:relative;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;isolation:isolate;min-height:min(86svh,760px);padding:calc(var(--hd) + 280px) 0 clamp(44px,7vw,80px)}
.ph-hero-bg{position:absolute;left:0;right:0;top:var(--hd);height:262px;z-index:-1;-webkit-mask-image:linear-gradient(180deg,#000 55%,transparent);mask-image:linear-gradient(180deg,#000 55%,transparent)}
.ph-hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.1);transition:transform 3s var(--e-out)}
.is-ready .ph-hero-bg img{transform:scale(1.01)}
.ph-hero .rings{display:none}
.crumb{display:flex;flex-wrap:wrap;gap:6px 10px;margin-bottom:22px;font-size:12px;letter-spacing:.1em;color:var(--sub)}
.crumb li + li::before{content:"/";margin-right:10px;color:var(--dim)}
.crumb a{transition:color .3s ease}
@media (hover:hover){.crumb a:hover{color:var(--shu)}}
.ph-en{font-family:var(--f-en);font-style:italic;font-weight:400;font-size:clamp(2.7rem,12vw,7.6rem);line-height:1;letter-spacing:-.005em;color:var(--ai)}
.ph-hero h1{margin-top:clamp(14px,2vw,22px);font-family:var(--f-min);font-weight:700;font-size:clamp(1.45rem,6vw,2.4rem);line-height:1.5;letter-spacing:.12em;color:var(--ai-deep)}
.ph-no{display:block;margin-bottom:4px;font-family:var(--f-en);font-style:italic;font-weight:500;font-size:14px;letter-spacing:.08em;color:var(--shu)}
.ph-hero h1 em{display:inline-block;vertical-align:.4em;margin-left:14px;padding:2px 12px;border:1px solid var(--shu);border-radius:2px;font-family:var(--f-go);font-style:normal;font-weight:500;font-size:12px;letter-spacing:.14em;color:var(--shu)}
.ph-hero .catch{margin-top:18px;max-width:30em;font-family:var(--f-min);font-weight:600;font-size:clamp(15.5px,4.2vw,20px);line-height:1.95;letter-spacing:.08em}
.ph-hero > .wrap > *{opacity:0;transform:translateY(18px);transition:opacity 1.1s var(--e-out),transform 1.1s var(--e-out)}
.is-ready .ph-hero > .wrap > *{opacity:1;transform:none}
.is-ready .ph-hero > .wrap > :nth-child(2){transition-delay:.08s}.is-ready .ph-hero > .wrap > :nth-child(3){transition-delay:.16s}.is-ready .ph-hero > .wrap > :nth-child(4){transition-delay:.24s}

/* ページ内リンクの帯 */
.pnav-in{display:flex;flex-wrap:wrap;gap:1px;padding:0;background:var(--line);border:1px solid var(--line);border-radius:2px;overflow:hidden;width:calc(100% - var(--gut) * 2);max-width:calc(var(--wrap) - var(--gut) * 2);box-shadow:var(--sh-paper)}
.pnav a{flex:1 1 140px;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;padding:0 18px;background:var(--paper);font-size:13.5px;letter-spacing:.12em;color:var(--ai-deep);transition:color .3s ease,background .3s ease}
.pnav a i{width:7px;height:7px;margin-top:-4px;border-right:1px solid var(--shu);border-bottom:1px solid var(--shu);transform:rotate(45deg)}
@media (hover:hover){.pnav a:hover{color:var(--shu);background:var(--kinari)}}
.pnav + .sec{padding-top:clamp(72px,9vw,120px)}

.ov{display:grid;gap:40px}
.ov-tx{font-size:15.5px;line-height:2.25}
.ov-tx p + p{margin-top:1.4em}
.ov-fig{margin:0;position:relative;overflow:hidden;aspect-ratio:16/11;border-radius:2px;box-shadow:var(--sh-paper);padding:10px;background:var(--paper)}
.ov-fig img{width:100%;height:100%;object-fit:cover}

.svc{display:grid;gap:14px;margin-top:56px}
.svc li{position:relative;display:grid;grid-template-columns:52px 1fr;gap:6px 20px;padding:30px 24px 28px;background:var(--paper);border-radius:2px;box-shadow:var(--sh-paper)}
.svc .ic{grid-row:span 3;width:52px;height:52px;border-radius:50%;background:var(--ai);display:grid;place-items:center;color:var(--paper)}
.svc .ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.svc .n{font-size:11.5px;letter-spacing:.2em;color:var(--shu)}
.svc h3{font-family:var(--f-min);font-weight:700;font-size:20px;line-height:1.55;letter-spacing:.1em;color:var(--ai-deep)}
.svc p{font-size:14.5px;line-height:2;color:var(--sub)}

.flow{position:relative;display:grid;gap:0;margin-top:56px}
.flow::before{content:"";position:absolute;left:23px;top:24px;bottom:24px;width:1px;background:repeating-linear-gradient(180deg,var(--ai-3) 0 4px,transparent 4px 9px)}
.flow li{position:relative;display:grid;grid-template-columns:48px 1fr;gap:20px;padding:0 0 30px}
.flow li:last-child{padding-bottom:0}
.flow .n{position:relative;z-index:1;display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:var(--ai);font-family:var(--f-en);font-weight:600;font-size:16px;color:var(--paper);box-shadow:0 0 0 5px var(--washi)}
.flow b{display:block;padding-top:9px;font-family:var(--f-min);font-weight:700;font-size:18.5px;letter-spacing:.1em;color:var(--ai-deep)}
.flow p{margin-top:4px;font-size:14px;line-height:1.95;color:var(--sub)}

.eq{display:grid;gap:12px;align-items:center;margin-top:56px;text-align:center}
.eq > div{padding:30px 22px;background:var(--paper);border-radius:2px;box-shadow:var(--sh-paper)}
.eq small{display:block;font-family:var(--f-en);font-style:italic;font-size:15px;letter-spacing:.08em;color:var(--ai-2)}
.eq b{display:block;margin-top:8px;font-family:var(--f-min);font-weight:700;font-size:20px;line-height:1.6;letter-spacing:.1em;color:var(--ai-deep)}
.eq .op{font-family:var(--f-en);font-size:30px;color:var(--shu);line-height:1}
.eq .res{background:var(--ai);color:var(--paper)}
.eq .res small{color:var(--ai-4)}
.eq .res b{color:var(--paper)}

.others{display:grid;gap:14px;margin-top:44px}
.oc{position:relative;display:block;min-height:220px;overflow:hidden;border-radius:2px;isolation:isolate;box-shadow:var(--sh-paper);color:var(--paper)}
.oc img{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--e-out)}
.oc::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(19,38,63,.88),rgba(19,38,63,.25))}
.oc-in{display:flex;flex-direction:column;justify-content:flex-end;height:100%;min-height:220px;padding:26px}
.oc .en{font-style:italic;font-size:15px;letter-spacing:.06em;color:var(--ai-4)}
.oc b{margin-top:6px;font-family:var(--f-min);font-weight:700;font-size:21px;letter-spacing:.12em}
.oc .tlink{align-self:flex-start;margin-top:14px;border-color:transparent;padding:0;color:var(--paper)}
@media (hover:hover){.oc:hover img{transform:scale(1.06)}.oc:hover .tlink .ar{width:34px}}

.purpose{counter-reset:p;margin-top:40px;border-top:1px solid var(--line-2)}
.purpose li{position:relative;display:grid;grid-template-columns:38px 1fr;gap:12px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.95}
.purpose li::before{counter-increment:p;content:counter(p);font-family:var(--f-en);font-style:italic;font-size:19px;line-height:1.5;color:var(--shu)}
.map{margin-top:40px;position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:2px;padding:10px;background:var(--paper);box-shadow:var(--sh-paper)}
.map iframe{display:block;width:100%;height:100%;border:0;filter:sepia(.25) saturate(.85)}

.form{display:grid;gap:22px;margin-top:48px}
.form label,.form .fl{display:block;font-size:13.5px;letter-spacing:.1em;color:var(--ai-deep);margin-bottom:10px}
.form label em,.form .fl em{font-style:normal;margin-left:8px;font-size:11px;color:var(--shu)}
.form input[type=text],.form input[type=email],.form input[type=tel],.form textarea{width:100%;padding:16px 18px;border-radius:2px;border:1px solid var(--line-2);background:var(--paper);font:inherit;font-size:16px;color:var(--ink);transition:border-color .3s ease,box-shadow .3s ease}
.form textarea{min-height:180px;resize:vertical;line-height:1.8}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--ai);box-shadow:0 0 0 4px rgba(31,59,92,.12)}
.form ::placeholder{color:#A39C90}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{margin:0;cursor:pointer}
.chips input{position:absolute;opacity:0}
.chips span{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:2px;border:1px solid var(--line-2);background:var(--paper);font-size:13.5px;color:var(--ink);transition:all .3s ease}
.chips input:checked + span{border-color:var(--ai);background:var(--ai);color:var(--paper)}
.chips input:focus-visible + span{outline:2px solid var(--shu);outline-offset:2px}
.agree{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--ink)}
.agree input{flex:0 0 auto;-webkit-appearance:none;appearance:none;width:22px;height:22px;border-radius:2px;border:1px solid var(--line-2);background:var(--paper);display:grid;place-items:center;cursor:pointer;transition:border-color .3s ease,background .3s ease}
.agree input::after{content:"";width:6px;height:11px;margin-top:-3px;border:solid var(--paper);border-width:0 2px 2px 0;transform:rotate(45deg) scale(0);transition:transform .25s var(--e-out)}
.agree input:checked{border-color:var(--ai);background:var(--ai)}
.agree input:checked::after{transform:rotate(45deg) scale(1)}
.form-note{padding:18px 20px;border-radius:2px;border:1px dashed var(--shu);background:rgba(247,239,226,.6);font-size:13.5px;line-height:1.9;color:var(--ink)}
.form .btn[disabled]{opacity:.45;cursor:not-allowed}

/* ============================================================
   フッター（藍の青海波）
   ============================================================ */
.ft{position:relative;overflow:hidden;padding:clamp(90px,12vw,140px) 0 calc(36px + env(safe-area-inset-bottom));color:var(--paper)}
.ft::before{content:"";position:absolute;left:0;right:0;top:-1px;height:28px;z-index:1;background:radial-gradient(circle at 50% 0,var(--washi) 13px,transparent 14px) 0 0/36px 28px repeat-x}
.ft-big{position:absolute;left:50%;bottom:-.18em;transform:translateX(-50%);font-family:var(--f-en);font-style:italic;font-weight:400;font-size:clamp(5rem,30vw,25rem);line-height:1;letter-spacing:-.01em;color:transparent;-webkit-text-stroke:1px rgba(247,239,226,.14);white-space:nowrap;pointer-events:none;user-select:none}
.ft-in{position:relative;display:grid;gap:48px}
.ft-brand img{width:88px;height:88px}
.ft-brand p{margin-top:20px;font-size:13px;line-height:2;color:rgba(247,239,226,.78)}
.ft-nav{display:grid;grid-template-columns:1fr 1fr;gap:34px 24px;letter-spacing:.08em}
.ft-nav > div{display:flex;flex-direction:column;align-items:flex-start}
.ft-h{align-self:stretch;margin-bottom:8px;padding-bottom:12px;border-bottom:1px solid rgba(247,239,226,.22);font-family:var(--f-min);font-weight:700;font-size:15px;letter-spacing:.14em}
.ft-nav a{display:inline-block;padding:6px 0;font-size:13.5px;color:rgba(247,239,226,.78);transition:color .3s ease}
.ft-h a{color:var(--paper);font-size:15px;padding:0}
@media (hover:hover){.ft-nav a:hover{color:var(--yamabuki)}}
.ft-bt{position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:70px;padding-top:24px;border-top:1px solid rgba(247,239,226,.22);font-size:11.5px;letter-spacing:.12em;color:rgba(247,239,226,.6)}

/* ============================================================
   はじめの一瞬（トップ・セッションで1回）：社章の落款を押して、紙がめくれる
   ============================================================ */
.intro{position:fixed;inset:0;z-index:170;display:grid;place-items:center;background:var(--washi);transition:clip-path 1s var(--e-io),visibility 1s;clip-path:inset(0 0 0 0);animation:intro-off 0s 4.5s forwards}
.intro img{width:96px;height:96px;opacity:0;transform:scale(1.8) rotate(-16deg);animation:intro-stamp .6s cubic-bezier(.34,1.56,.64,1) .35s forwards;filter:drop-shadow(0 2px 2px rgba(80,20,10,.25))}
.intro i{display:none}
.intro.is-out{clip-path:inset(0 0 100% 0);visibility:hidden}
.no-intro .intro{display:none}
@keyframes intro-stamp{0%{opacity:0;transform:scale(1.8) rotate(-16deg)}60%{opacity:1}100%{opacity:1;transform:none}}
@keyframes intro-off{to{opacity:0;visibility:hidden}}
.veil{position:fixed;inset:0;z-index:180;background:var(--washi);opacity:0;pointer-events:none;transition:opacity .45s var(--e-io)}
.is-leaving .veil{opacity:1}
.gauge{display:none}

/* ============================================================
   タブレット以上
   ============================================================ */
@media(min-width:760px){
  .news-in{grid-template-columns:200px 1fr;align-items:start;gap:5vw;padding-top:56px;padding-bottom:30px}
  .news-h{flex-direction:column;gap:6px;padding-top:12px}
  .news-list li{grid-template-columns:110px auto 1fr;gap:20px}
  .news-list p{grid-column:auto}
  .kw{grid-template-columns:repeat(3,1fr);border-top:0;gap:0 32px}
  .kw li{grid-template-columns:1fr;border-top:1px solid var(--line-2);border-bottom:0;padding-top:24px}
  .kw .n{grid-row:auto;padding:0}
  .collage{grid-template-columns:1.05fr .85fr 1.6fr;grid-template-rows:none;height:clamp(240px,27vw,400px)}
  .collage figure:first-child{grid-row:auto}
  .collage figure:nth-child(2){margin-top:50px}
  .biz-intro{grid-template-columns:1fr 1fr;align-items:end;gap:6vw}
  .bizc{grid-template-columns:1fr 1fr;gap:22px}
  .bc--main{grid-column:1/-1;grid-template-columns:1.25fr 1fr}
  .bc--main .bc-fig{aspect-ratio:auto;min-height:440px}
  .bc--main .bc-b{align-self:center;padding:48px 46px}
  .bc:not(.bc--main) .bc-fig{aspect-ratio:16/9}
  .bc:not(.bc--main) .bc-b{padding:30px 30px 32px}
  .links-in{grid-template-columns:1fr 1fr;gap:22px}
  .val-list{grid-template-columns:repeat(3,1fr)}
  .svc{grid-template-columns:repeat(3,1fr)}
  .svc li{grid-template-columns:1fr;gap:0}
  .svc .ic{grid-row:auto;margin-bottom:26px}
  .svc .n{margin-bottom:6px}
  .svc h3{margin-bottom:12px}
  .others{grid-template-columns:1fr 1fr}
  .eq{grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch}
  .eq > div{display:flex;flex-direction:column;justify-content:center;min-height:200px;padding:34px 18px}
  .eq .op{align-self:center}
  .dl > div{grid-template-columns:150px 1fr}
  .ft-in{grid-template-columns:1fr 2fr}
  .ft-nav{grid-template-columns:repeat(3,1fr)}
  .ph-hero{padding-top:calc(var(--hd) + 340px)}
  .ph-hero-bg{height:400px}
}
@media(min-width:1000px){
  :root{--hd:80px}
  body{font-size:15.5px}
  .brand img{width:46px;height:46px}
  .brand-t b{font-size:16px}
  .menu-btn{display:none}
  .mnav{display:none}
  .gnav{display:flex;align-items:center;gap:38px;font-size:14px;letter-spacing:.12em;color:var(--ai-deep)}
  .gnav > a,.gnav .dd > a{position:relative;padding:10px 0;transition:color .3s ease}
  .gnav > a::after,.gnav .dd > a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--shu);transform:scaleX(0);transform-origin:right;transition:transform .5s var(--e-out)}
  .gnav > a:hover::after,.gnav .dd:hover > a::after,.gnav a.is-cur::after{transform:scaleX(1);transform-origin:left}
  .gnav .btn{min-height:46px;padding:0 22px 0 24px;font-size:13.5px;color:var(--paper)}
  .dd{position:relative}
  .dd-p{position:absolute;left:50%;top:100%;width:640px;padding:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;background:var(--paper);box-shadow:var(--sh-paper),0 24px 40px -20px rgba(19,38,63,.45);border-radius:2px;
    transform:translate(-50%,10px);opacity:0;visibility:hidden;transition:opacity .35s ease,transform .45s var(--e-out),visibility .35s}
  .dd:hover .dd-p,.dd:focus-within .dd-p{opacity:1;visibility:visible;transform:translate(-50%,0)}
  .dd-p a{display:block}
  .dd-p .im{aspect-ratio:16/10;overflow:hidden;border-radius:2px}
  .dd-p img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--e-out)}
  .dd-p a:hover img{transform:scale(1.06)}
  .dd-p small{display:block;margin-top:12px;font-family:var(--f-en);font-style:italic;font-size:13px;letter-spacing:.06em;color:var(--shu)}
  .dd-p b{display:block;margin-top:2px;font-family:var(--f-min);font-weight:700;font-size:15px;letter-spacing:.1em}

  .hero-in{top:calc(var(--hd) + 7vh);right:calc(var(--gut) + 4vw);gap:22px}
  .hero-title{padding:26px 20px}
  .hero-p{padding:16px 10px}
  .hero-dive{position:absolute;left:var(--gut);bottom:34px;display:flex;align-items:center;gap:14px;font-family:var(--f-en);font-style:italic;font-size:15px;letter-spacing:.08em;color:var(--ai-deep)}
  .hero-dive i{position:relative;width:56px;height:1px;background:var(--line-2);overflow:hidden}
  .hero-dive i::after{content:"";position:absolute;top:0;left:-30%;height:1px;width:30%;background:var(--shu);animation:drip 2.2s var(--e-out) infinite}
  @keyframes drip{to{left:100%}}

  .about{grid-template-columns:.85fr 1.15fr;gap:6vw;align-items:center}
  .about-fig{order:0;width:min(100%,400px)}
  .co{grid-template-columns:.9fr 1.1fr;gap:6vw;align-items:start}
  .ov{grid-template-columns:1fr 1fr;gap:6vw;align-items:center}
  .ov:has(.eq){grid-template-columns:.8fr 1.2fr;gap:4vw}
  .flow{grid-template-columns:repeat(var(--steps,5),1fr);gap:20px}
  .flow::before{left:24px;right:24px;top:23px;bottom:auto;width:auto;height:1px;background:repeating-linear-gradient(90deg,var(--ai-3) 0 4px,transparent 4px 9px)}
  .flow li{grid-template-columns:1fr;gap:18px;padding:0;align-content:start}
  .flow b{padding-top:0}
  .form{grid-template-columns:1fr 1fr;gap:26px 28px}
  .form .full{grid-column:1/-1}
  /* 下層の見出し：PC は写真を右半分に置き、左に文字 */
  .ph-hero{min-height:min(80svh,740px);padding-top:calc(var(--hd) + 120px)}
  .ph-hero-bg{left:44%;top:var(--hd);bottom:0;height:auto;-webkit-mask-image:linear-gradient(90deg,transparent,#000 26%);mask-image:linear-gradient(90deg,transparent,#000 26%)}
  .ph-hero > .wrap{position:relative}
}

/* ---- 動きを減らす設定 ---- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;transition-delay:0s!important}
  [data-r],[data-lines] > span > span,.hero-title,.hero-sub,.hero-seal,.hero-img,.ph-hero > .wrap > *,.about-fig{opacity:1!important;transform:none!important}
  [data-par]{translate:none!important}
  .hero-in{translate:none!important;opacity:1!important}
  .intro{display:none}
}

/* ============================================================
   ディープブルー基調（夜の海に、生成りの紙の切り絵を重ねる）
   地＝藍の夜、紙＝生成り。紙の上の文字は墨（--ink）、地の上の文字は生成り（--fg）
   ============================================================ */
:root{--bg:#0A213D;--bg-2:#10284A;--bg-deep:#071427;--fg:#EEE5D3;--fg-2:#A9B8CB;--fg-line:rgba(238,229,211,.16);--fg-line-2:rgba(238,229,211,.32);--shu:#C8473A;--moon:#F2EAD8}
html,body{background:var(--bg)}
body{color:var(--fg)}
body::before{opacity:.28;mix-blend-mode:normal}
::selection{background:rgba(238,229,211,.25);color:#fff}
/* ヘッダー */
.hd{background:rgba(10,33,61,.8)}
.hd::after{background:var(--fg-line)}
.hd.is-s{box-shadow:0 12px 30px -18px rgba(0,0,0,.6)}
.brand-t b,.gnav,.menu-btn{color:var(--fg)}
.brand-t small{color:var(--fg-2)}
.btn{background:var(--moon);color:var(--ai-deep)}
@media (hover:hover){.btn:hover{color:var(--moon)}}
.gnav .btn{color:var(--ai-deep)}
@media (hover:hover){.gnav .btn:hover{color:var(--moon)}}
.dd-p{color:var(--ink)}
.dd-p b{color:var(--ai-deep)}
.mnav{background:var(--bg)}
.mnav ol a{color:var(--fg)}
.mnav li{border-color:var(--fg-line)}
.mnav-ft{color:var(--fg-2)}
/* ファーストビュー */
.hero{background:var(--bg)}
.hero-art::after{background:linear-gradient(180deg,rgba(10,33,61,0),var(--bg))}
.hero-dive{color:var(--fg)}
.hero-dive i{background:var(--fg-line-2)}
/* 見出し・本文 */
.lbl{color:var(--fg-2)}
.lbl::after{background:var(--fg-line-2)}
.h2,.about-st,.ph-hero h1{color:var(--fg)}
.lead{color:var(--fg-2)}
.about-tx{color:var(--fg)}
.sh-en,.ph-en{color:#C5D2E2}
.kw{border-color:var(--fg-line-2)}
.kw li{border-color:var(--fg-line)}
.kw b{color:var(--fg)}
.kw p{color:var(--fg-2)}
.tlink{color:var(--fg);border-color:var(--fg-line-2)}
.tl-in{border-color:var(--fg-line-2)}
.arc{color:var(--fg);border-color:var(--fg-line-2)}
.bc .arc{color:var(--ai);border-color:var(--line-2)}
.collage figure,.lk,.oc{box-shadow:0 20px 40px -22px rgba(0,0,0,.7)}
/* 紙のカード（文字は墨） */
.bc,.svc li,.val-list li,.eq > div,.pnav a{color:var(--ink)}
.bc{box-shadow:0 2px 4px rgba(0,0,0,.25),0 26px 44px -22px rgba(0,0,0,.7)}
/* 大切にしていること：さらに深い藍の青海波 */
.val-bg.seigaiha,.ft.seigaiha{--ai:#13284A}
.val::before,.val::after,.cta::before,.ft::before{background-image:radial-gradient(circle at 50% 0,var(--bg) 13px,transparent 14px);background-size:36px 28px;background-repeat:repeat-x;background-position:0 0}
.ft.seigaiha{--ai:#0E203D}
/* 会社概要・下層 */
.dl{border-color:var(--fg-line-2)}
.dl > div{border-color:var(--fg-line)}
.dl dt{color:var(--fg-2)}
.crumb{color:var(--fg-2)}
.ph-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,29,53,0) 50%,rgba(11,29,53,.5))}
.ph-hero .catch{color:var(--fg)}
.ov-tx{color:var(--fg)}
.flow .n{box-shadow:0 0 0 5px var(--bg);background:var(--moon);color:var(--ai-deep)}
.flow b{color:var(--fg)}
.flow p{color:var(--fg-2)}
.purpose{border-color:var(--fg-line-2)}
.purpose li{border-color:var(--fg-line)}
.form label,.form .fl{color:var(--fg)}
.agree{color:var(--fg)}
.form-note{background:rgba(238,229,211,.06);color:var(--fg)}
.intro,.veil{background:var(--bg)}

/* ============================================================
   スクロール演出
   ============================================================ */
/* 罫線は見えたら左から引かれる */
.lbl::after{transform:scaleX(0);transform-origin:left;transition:transform 1.6s var(--e-out) .15s}
.lbl.is-in::after{transform:none}
/* 大きな英字は、スクロールで波のように横へ流れる（main.js が --dx を入れる） */
[data-drift]{display:inline-block;translate:var(--dx,0%) 0;will-change:translate}
.ft-big span{display:inline-block}
/* 切り絵の写真：下から紙がめくれるように現れる（--pe：0→1） */
[data-peel]{clip-path:inset(calc((1 - var(--pe,0)) * 100%) 0 0 0);will-change:clip-path}
[data-peel] img{transform:scale(calc(1.25 - var(--pe,0) * .25))}
/* カード：奥から起き上がる（--tl：0→1） */
[data-tilt]{transform:perspective(1400px) translateY(calc((1 - var(--tl,0)) * 90px)) rotateX(calc((1 - var(--tl,0)) * 14deg));opacity:calc(.15 + var(--tl,0) * .85);transform-origin:50% 100%;transition:box-shadow .45s ease}

/* 絵巻：縦のスクロールで、三枚の切り絵が画面いっぱいに横へ流れていく
   対応ブラウザは CSS のスクロール連動アニメーション（.sda）、それ以外は main.js が --em（0→1）を入れる */
.emaki{position:relative;height:calc(var(--n,3) * 100svh + 60svh);margin-top:clamp(10px,2vw,30px)}
.emaki-pin{position:sticky;top:0;height:100svh;overflow:hidden;background:var(--bg-deep)}
.emaki-track{display:flex;height:100%;width:calc(var(--n,3) * 100vw);transform:translate3d(calc(var(--em,0) * (100vw - 100%)),0,0);will-change:transform}
.ek{position:relative;display:block;flex:0 0 100vw;width:100vw;height:100%;overflow:hidden}
.ek-im{position:absolute;inset:0}
.ek-im img{width:100%;height:100%;object-fit:cover}
.ek-im::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,20,39,.45) 0,rgba(7,20,39,0) 22%,rgba(7,20,39,0) 60%,rgba(7,20,39,.55) 100%);pointer-events:none}
.ek + .ek::before{content:"";position:absolute;left:0;top:0;bottom:0;z-index:1;width:1px;background:rgba(238,229,211,.25)}
.ek-cap{position:absolute;z-index:2;left:var(--gut);bottom:calc(86px + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:flex-start;padding:18px 22px 20px;background:var(--moon);color:var(--ai-deep);border-radius:2px;box-shadow:0 18px 36px -16px rgba(0,0,0,.7)}
.ek-no{position:absolute;right:-14px;top:-14px;display:grid;place-items:center;width:42px;height:42px;background:var(--shu);color:var(--moon);font-family:var(--f-en);font-weight:600;font-size:17px;border-radius:2px}
.ek-cap .en{font-style:italic;font-size:15px;letter-spacing:.06em;color:var(--ai-2)}
.ek-cap b{margin-top:2px;font-family:var(--f-min);font-weight:800;font-size:clamp(1.45rem,6vw,2.8rem);letter-spacing:.12em;line-height:1.45}
.ek-cap small{display:inline-flex;align-items:center;gap:12px;margin-top:6px;font-size:12.5px;letter-spacing:.12em;color:var(--sub)}
.ek-cap small .ar{position:relative;width:20px;height:1px;background:currentColor;transition:width .4s var(--e-out)}
.ek-cap small .ar::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
@media (hover:hover){.ek:hover .ek-cap small .ar{width:32px}}
.emaki-meter{position:absolute;z-index:3;left:50%;bottom:calc(36px + env(safe-area-inset-bottom));width:min(220px,40vw);height:1px;transform:translateX(-50%);background:rgba(238,229,211,.35)}
.emaki-meter i{position:absolute;inset:0;background:var(--shu);transform:scaleX(var(--em,0));transform-origin:left}
@supports (animation-timeline: view()){
  .sda .emaki{view-timeline:--emaki block}
  .sda .emaki-track{animation:emaki-x linear both;animation-timeline:--emaki;animation-range:contain 0% contain 100%}
  .sda .emaki-meter i{animation:emaki-m linear both;animation-timeline:--emaki;animation-range:contain 0% contain 100%}
}
@keyframes emaki-x{0%,8%{transform:translate3d(0,0,0)}92%,100%{transform:translate3d(calc(100vw - 100%),0,0)}}
@keyframes emaki-m{0%,8%{transform:scaleX(0)}92%,100%{transform:scaleX(1)}}
.biz-intro{margin-top:clamp(40px,6vw,80px)}

@media (prefers-reduced-motion:reduce){
  .lbl::after{transform:none}
  [data-drift]{translate:none}
  [data-peel]{clip-path:none}
  [data-peel] img{transform:none}
  [data-tilt]{transform:none;opacity:1}
  .emaki{height:auto}
  .emaki-pin{position:static;height:auto}
  .emaki-track{flex-direction:column;width:auto;height:auto;transform:none!important;animation:none!important}
  .ek{flex:none;width:100%;height:80svh}
}
@media (max-width:760px){.hd{background:rgba(10,33,61,.95);-webkit-backdrop-filter:none;backdrop-filter:none}body::before{display:none}}

/* ============================================================
   夜空（私たちについて〜事業内容の背景）：切り絵の月と雲が漂い、星がまたたく
   月と雲は夜の富士の切り絵から切り抜いたもの。スクロールで別々の速さに動く（data-par）
   ============================================================ */
#about,#business{isolation:isolate}
.sky{position:absolute;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.sky--biz{bottom:auto;height:min(1100px,150svh)}
/* 星 */
.sky::before,.sky::after{content:"";position:absolute;inset:0;background-repeat:repeat}
.sky::before{background-image:
  radial-gradient(1.2px 1.2px at 12% 18%,rgba(242,234,216,.8),transparent 60%),radial-gradient(1px 1px at 34% 62%,rgba(242,234,216,.6),transparent 60%),
  radial-gradient(1.4px 1.4px at 58% 28%,rgba(242,234,216,.75),transparent 60%),radial-gradient(1px 1px at 77% 74%,rgba(242,234,216,.55),transparent 60%),
  radial-gradient(1.2px 1.2px at 88% 12%,rgba(242,234,216,.7),transparent 60%),radial-gradient(1px 1px at 22% 88%,rgba(242,234,216,.5),transparent 60%),
  radial-gradient(1px 1px at 47% 45%,rgba(242,234,216,.45),transparent 60%),radial-gradient(1.3px 1.3px at 66% 92%,rgba(242,234,216,.65),transparent 60%);
  background-size:520px 460px}
.sky::after{background-image:
  radial-gradient(1.6px 1.6px at 28% 34%,rgba(242,234,216,.9),transparent 60%),radial-gradient(1.4px 1.4px at 71% 51%,rgba(242,234,216,.85),transparent 60%),
  radial-gradient(1.5px 1.5px at 9% 70%,rgba(242,234,216,.8),transparent 60%),radial-gradient(1.3px 1.3px at 52% 8%,rgba(242,234,216,.8),transparent 60%);
  background-size:740px 620px;animation:twinkle 5.5s ease-in-out infinite alternate}
@keyframes twinkle{from{opacity:.25}to{opacity:1}}
/* 月：やわらかい月明かりをまとう */
.sky-moon{position:absolute;right:7%;top:clamp(40px,6vw,90px);width:clamp(86px,13vw,180px);height:auto;filter:drop-shadow(0 0 28px rgba(242,234,216,.35)) drop-shadow(0 0 80px rgba(242,234,216,.18))}
#about .sky{background:radial-gradient(circle at 88% 6%,rgba(242,234,216,.1),transparent 34%)}
/* 雲：ゆっくり横に流れる */
.sky-cl{position:absolute;height:auto;opacity:.5;animation:cloud-drift 40s ease-in-out infinite alternate}
.sky-cl--a{left:-8%;top:9%;width:clamp(260px,42vw,600px)}
.sky-cl--b{left:-12%;top:47%;width:clamp(240px,36vw,540px);opacity:.38;animation-duration:48s;animation-delay:-12s}
.sky-cl--c{left:6%;top:64%;width:clamp(300px,50vw,720px);opacity:.28;animation-duration:56s;animation-delay:-20s}
.sky-cl--d{right:-10%;top:2%;width:clamp(300px,52vw,760px);opacity:.36;animation-duration:50s}
.sky-cl--e{left:-12%;top:38%;width:clamp(240px,38vw,560px);opacity:.3;animation-duration:44s;animation-delay:-8s}
@keyframes cloud-drift{from{transform:translate3d(-3%,0,0)}to{transform:translate3d(3%,0,0)}}
@media (max-width:760px){.sky-cl{opacity:.3}.sky-cl--a{top:6%}.sky-cl--b{top:52%}.sky-cl--c{top:74%}.sky-moon{top:96px;right:6%;width:70px}}
@media (prefers-reduced-motion:reduce){.sky::after,.sky-cl{animation:none}}

/* ============================================================
   和の書体：見出し＝筆文字（Yuji Syuku・楷書）／本文＝明朝（Zen Old Mincho）
   筆文字は太さが一つだけなので、太字や斜体を機械的に作らせない
   ============================================================ */
:root{--f-fude:"Yuji Syuku","Zen Old Mincho",serif;--f-min:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;--f-go:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;--f-en:"Yuji Syuku","Zen Old Mincho",serif}
body{font-weight:500;font-synthesis:none}
.hero-h,.h2,.about-st,.cta h2,.ph-hero h1,.ek-cap b,.sh-en,.ph-en,.lk .en,.ft-big,.news-h .en{font-family:var(--f-fude);font-weight:400}
.sh-en,.ph-en,.lk .en,.ek-cap .en,.bc .tag,.kw .n,.val-list .n,.ph-no,.oc .en,.eq small,.dd-p small,.purpose li::before,.hero-dive,.about-fig figcaption,.ft-big,.news-h .en{font-style:normal}
.hero-h{letter-spacing:.12em;line-height:1.42}
.h2,.about-st,.cta h2{letter-spacing:.06em;line-height:1.55}
.sh-en{letter-spacing:-.03em;font-size:clamp(2.8rem,12vw,9rem)}
.ph-en{letter-spacing:-.03em}
.lk .en{letter-spacing:-.02em}
.ek-cap b{letter-spacing:.1em}
.bc h3,.kw b,.val-list b,.svc h3,.flow b,.oc b,.eq b,.lk b,.mnav ol a,.ft-h,.dd-p b,.brand-t b{font-weight:700}
.bc .catch,.ph-hero .catch,.hero-p{font-weight:600}
.lbl .n,.bc-no,.ek-no,.flow .n{font-family:var(--f-fude);font-weight:400;letter-spacing:0}
.btn,.gnav,.pnav a,.chips span,.form input,.form textarea{font-family:var(--f-min)}
.form input,.form textarea{font-weight:500}
@media(min-width:1000px){.ph-en{font-size:clamp(3.4rem,7vw,6.2rem)}}

/* 青海波の海（three.js）：描けたら CSS の文様と入れ替える */
.val-bg .sgh{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity 1.2s ease}
.val-bg.is-3d{background:#071427}
.val-bg.is-3d .sgh{opacity:1}
.val-bg::after{z-index:1}
.val-list li{position:relative;z-index:2}
.val-bg.is-3d::after{background:linear-gradient(180deg,rgba(7,20,39,.92) 0%,rgba(7,20,39,.72) 30%,rgba(7,20,39,.28) 52%,rgba(7,20,39,.15) 80%,rgba(7,20,39,.6) 100%)}
/* 下層の見出し：h1 は事業名だけにし、番号と「メイン事業」は外に出す */
.ph-hero .ph-no{margin-top:clamp(14px,2vw,22px);margin-bottom:0}
.ph-no + .ph-ttl h1{margin-top:4px}
.ph-ttl{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.ph-ttl em{display:inline-block;padding:2px 12px;border:1px solid var(--shu);border-radius:2px;font-family:var(--f-min);font-style:normal;font-weight:500;font-size:12px;letter-spacing:.14em;color:var(--shu)}

/* ============================================================
   見出しの筆文字：衡山毛筆フォント（書家 青柳衡山・商用利用可）
   サイトの見出しで使う文字だけに絞った woff2。字面が小さめなので size-adjust で揃える
   ============================================================ */
@font-face{font-family:"Kouzan";src:url(../fonts/kouzan.woff2) format("woff2");font-display:swap;size-adjust:118%}
:root{--f-fude:"Kouzan","Yuji Syuku","Zen Old Mincho",serif;--f-en:"Kouzan","Yuji Syuku","Zen Old Mincho",serif}
/* 線が細い書なので、地の上では少しだけ墨を太らせる */
.hero-h,.h2,.about-st,.cta h2,.ph-hero h1,.ek-cap b{-webkit-text-stroke:.012em currentColor;paint-order:stroke fill}
.hero-h{letter-spacing:.08em;line-height:1.38}
.h2,.about-st,.cta h2{letter-spacing:.04em}
.sh-en,.ph-en{letter-spacing:0}
/* 小さな英字・番号は明朝に戻す（筆文字は大きな見出しだけ） */
:root{--f-en:"Zen Old Mincho","Hiragino Mincho ProN",serif}
.sh-en,.ph-en,.lk .en,.ft-big{font-family:var(--f-fude)}
.lbl .n,.bc-no,.ek-no,.flow .n{font-family:var(--f-min);font-weight:600}
/* 筆文字は字面が大きいぶん、見出しを少し小さく */
.about-st{font-size:clamp(1.7rem,6.9vw,3.1rem)}
.h2,.cta h2{font-size:clamp(1.6rem,6.3vw,2.8rem)}