:root{--p:#1f9393;--p-l:#5fc0bd;--s:#0e3c3f;--a:#c9a54c;--t:#1e2b2c;--t2:#4c5b5c;--bg:#f6f9f8;--line:#d9e3e1;--gut:72px;--max:1040px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--t);font-family:"Noto Sans JP",sans-serif;font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.mi{font-family:"Shippori Mincho",serif;font-weight:600}
.la{font-family:"Cormorant Garamond",serif;font-weight:500;letter-spacing:.18em}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--p);outline-offset:3px}

/* header */
.hd{position:fixed;inset:0 0 auto 0;z-index:50;height:68px;display:flex;align-items:center;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.hd .in{width:100%;max-width:calc(var(--max) + var(--gut)*2);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.hd .logo{height:30px;width:auto}
.hd .logo.dk{display:none}
.hd.solid{background:rgba(246,249,248,.94);border-color:var(--line);backdrop-filter:blur(6px)}
.hd.solid .logo.wt{display:none}.hd.solid .logo.dk{display:block}
.nav{display:flex;gap:26px;font-size:13.5px;letter-spacing:.06em}
.nav a{text-decoration:none;color:#dfeeed;padding:4px 0;border-bottom:1px solid transparent;transition:border-color .2s}
.nav a:hover{border-color:currentColor}
.hd.solid .nav a{color:var(--t)}
.nav a.ct{color:var(--a)}
.hd.solid .nav a.ct{color:#8a6d1f}
.mb{display:none;background:none;border:0;width:44px;height:44px;color:#fff;cursor:pointer}
.hd.solid .mb{color:var(--s)}
.mb span{display:block;width:22px;height:1.5px;background:currentColor;margin:5px auto}

/* flow line (page spine) */
.spine{position:absolute;left:0;top:0;width:var(--gut);pointer-events:none;z-index:2}
.spine path{fill:none;stroke-linecap:round}

/* FV */
.fv{position:relative;min-height:100svh;background:var(--s);color:#fff;display:flex;align-items:center;overflow:hidden}

.fv .in{position:relative;z-index:3;width:100%;max-width:calc(var(--max) + var(--gut)*2);margin:0 auto;padding:120px 24px 96px calc(var(--gut) + 48px);display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center}
.fv .eb{color:var(--p-l);font-size:13px;margin-bottom:28px}
.fv h1{font-family:"Shippori Mincho",serif;font-weight:600;font-size:clamp(34px,4.8vw,68px);line-height:1.42;letter-spacing:.06em;margin:0;word-break:keep-all}
.fv .sub{margin-top:28px;font-size:17px;font-weight:700;color:#e4f0ef;letter-spacing:.08em}
.fv .sub b{font-family:"Shippori Mincho",serif;font-weight:700;color:#fff}
.fv .in{grid-template-columns:1fr}
.fv .art{position:absolute;z-index:1;right:-20vw;top:50%;width:min(64vw,860px);transform:translateY(-50%);pointer-events:none}
.fv .art svg{width:100%;height:auto;overflow:visible}
.fv .art .rp{fill:none;stroke:#5fc0bd;stroke-width:1;transform-origin:520px 360px;animation:ripple 9s linear infinite;opacity:0}
.fv .art .rp:nth-of-type(2){animation-delay:3s}.fv .art .rp:nth-of-type(3){animation-delay:6s}
@keyframes ripple{0%{transform:scale(.25);opacity:0}12%{opacity:.55}100%{transform:scale(1.9);opacity:0}}
.fv .art .fl{fill:none;stroke:#5fc0bd;stroke-linecap:round;stroke-dasharray:4 14;animation:flow 6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-180}}
.fv .art .mk{opacity:.96}
.fv h1 .hand{font-family:"Yuji Syuku",serif;font-weight:400;font-size:1.22em;letter-spacing:.02em}
.fv .next{margin-top:56px;display:inline-flex;align-items:center;gap:10px;color:#cfe3e1;font-size:13px;text-decoration:none;letter-spacing:.1em;border-bottom:1px solid rgba(207,227,225,.4);padding-bottom:4px}
.fv .next:hover{color:#fff;border-color:#fff}

/* sections */
.sec{position:relative;padding:120px 0}
.sec.alt{background:#fff}
.sec{overflow:hidden}

.sec.deep{background:var(--s);color:#dfeeed}

.sec.deep .in{position:relative;z-index:1}

.sec.deep .h2{color:#fff}.sec.deep .lead{color:#cfe3e1}.sec.deep .eb2{color:var(--p-l)}.sec.deep .eb2 .r{background:var(--p-l)}
.deep .stages text{fill:#cfe3e1}.deep .stages .m{fill:#fff}.deep .stages .s1{fill:#8fb0ae}
.deep .stages path.draw{stroke:#5fc0bd;stroke-width:2}
.deep .stages line{stroke:rgba(207,227,225,.18)}

.deep .stages .gold text{fill:#f1e2b8}
.sec .in{max-width:calc(var(--max) + var(--gut)*2);margin:0 auto;padding:0 24px 0 calc(var(--gut) + 48px)}
.eb2{display:flex;align-items:center;gap:14px;color:var(--p);font-size:13px;margin-bottom:14px}
.eb2 .n{font-family:"Cormorant Garamond",serif;font-size:20px;letter-spacing:.05em}
.eb2 .r{width:36px;height:1px;background:var(--p)}
.h2{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:clamp(25px,2.8vw,34px);line-height:1.6;letter-spacing:.05em;margin:0 0 20px}
.lead{max-width:640px;color:var(--t2)}
.h2,.why h3,.card h3,.ceo blockquote,.nd-list .yes,.closing p{word-break:keep-all;overflow-wrap:anywhere}

/* 01 why */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:56px;border-top:1px solid var(--line)}
.why li{list-style:none;padding:32px 28px 8px 0;border-right:1px solid var(--line);margin-right:28px}
.why li:last-child{border-right:0;margin-right:0}
.why .n{font-family:"Cormorant Garamond",serif;color:var(--p);font-size:28px;line-height:1}
.why h3{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:19px;line-height:1.6;margin:14px 0 10px}
.why p{margin:0;font-size:14.5px;color:var(--t2)}
.why ol,.why{padding:0}

/* 02 stages */
.stages{margin-top:48px}
.stages svg{width:100%;height:auto;overflow:visible}
.stages text{font-family:"Noto Sans JP",sans-serif}
.stages .m{font-family:"Shippori Mincho",serif;font-weight:600}
.stages .gold{opacity:0;transition:opacity .6s .2s}
.stages.on .gold{opacity:1}
.stages-sp{display:none}

/* 03 business */
.biz{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;margin-top:56px;position:relative}
.card{background:#fff;border:1px solid var(--line);border-radius:3px;padding:32px 32px 28px;position:relative}
.sec.alt .card{background:var(--bg)}
.card .k{font-size:12px;color:var(--p);letter-spacing:.12em}
.card h3{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:24px;margin:6px 0 4px}
.card .tag{margin:0 0 18px;color:var(--t2);font-size:14.5px}
.ring{display:grid;grid-template-columns:230px 1fr;gap:24px;align-items:center}
.ring svg{width:100%;height:auto;overflow:visible}
.ring .sp{stroke:#1f9393;stroke-width:1;stroke-dasharray:2 4;opacity:.45;transition:opacity .25s,stroke-width .25s}
.ring .sp.hl{opacity:1;stroke-width:1.6;stroke-dasharray:none}
.ring .nd{transition:fill .25s}
.ring .nd.hl{fill:#e6f3f2}
.plist{list-style:none;margin:0;padding:0;font-size:14px}
.plist li{border-bottom:1px solid var(--line)}
.plist a,.plist .nl{display:grid;grid-template-columns:82px 1fr auto;gap:10px;align-items:baseline;padding:8px 2px 8px 14px;text-decoration:none;position:relative}
.plist a::before{content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--p);transition:width .25s}
.plist a:hover::before,.plist a:focus-visible::before{width:9px}
.plist .nm{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:15px}
.plist .rl{color:var(--t2);font-size:12.5px}
.plist .ar{color:var(--p);transition:transform .25s}
.plist a:hover .ar,.plist a:focus-visible .ar{transform:translate(2px,-2px)}
.plist .soon{font-size:11.5px;color:#8a6d1f}
.go{display:flex;justify-content:space-between;align-items:center;margin-top:22px;padding:14px 0 0;border-top:1px solid var(--s);text-decoration:none;color:var(--s);font-family:"Shippori Mincho",serif;font-weight:600;font-size:16px}
.go .ar{transition:transform .25s;color:var(--p)}
.go:hover .ar,.go:focus-visible .ar{transform:translate(3px,-3px)}
.out{margin-top:18px;font-size:13px;color:var(--t2);display:flex;gap:12px;flex-wrap:wrap}
.out a{text-decoration:none;border-bottom:1px solid var(--line)}
.out a:hover{border-color:var(--p)}
.ng .go{margin-top:28px}
.ng p{font-size:14.5px;color:var(--t2);margin:0}

/* stub */
.stub{padding:72px 0;border-top:1px solid var(--line)}
.stub .in{max-width:calc(var(--max) + var(--gut)*2);margin:0 auto;padding:0 24px 0 calc(var(--gut) + 48px);color:var(--t2);font-size:14px}
.stub h2{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:22px;margin:0 0 6px}
.contact{background:var(--s);color:#dfeeed}
.contact h2{color:#fff}
.contact a{color:#fff}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--a);margin-right:10px;vertical-align:middle}


/* 04 not do */
.nd-list{list-style:none;margin:56px 0 0;padding:0;border-top:1px solid var(--line)}
.nd-list li{display:grid;grid-template-columns:1fr 64px 1fr;align-items:center;gap:0;padding:28px 0;border-bottom:1px solid var(--line)}
.nd-list .no{color:var(--t2);font-size:15px}
.nd-list .no small,.nd-list .yes small{display:block;font-size:12px;letter-spacing:.14em;margin-bottom:6px}
.nd-list .no small{color:#7c8d8e}
.nd-list .yes small{color:var(--p)}
.nd-list .yes{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:18px;line-height:1.7}
.nd-list .to{display:block;height:1px;background:var(--p);position:relative;margin:0 14px}
.nd-list .to::after{content:"";position:absolute;right:-1px;top:-3px;width:7px;height:7px;border-top:1px solid var(--p);border-right:1px solid var(--p);transform:rotate(45deg)}

/* 05 ceo */
.ceo{display:grid;grid-template-columns:300px 1fr;gap:56px;margin-top:56px;align-items:start}
.ph{aspect-ratio:4/5;border:1px solid var(--line);background:var(--bg);display:flex;align-items:center;justify-content:center;color:#9aa8a8;font-size:12.5px;letter-spacing:.08em;border-radius:3px}
img.ph{display:block;width:100%;height:auto;object-fit:cover;background:var(--bg)}
.ceo .role{font-size:13px;color:var(--p);letter-spacing:.12em}
.ceo .nm{font-family:"Shippori Mincho",serif;font-weight:600;color:var(--s);font-size:28px;margin:4px 0 2px;letter-spacing:.08em}
.ceo .kana{font-size:12.5px;color:var(--t2);letter-spacing:.1em}
.ceo blockquote{margin:28px 0 0;padding:0 0 0 22px;border-left:1px solid var(--p);font-family:"Shippori Mincho",serif;font-weight:500;font-size:18px;line-height:2;color:var(--s)}
.ceo .bio{margin:28px 0 0;padding:0;list-style:none;font-size:14.5px;color:var(--t2)}
.ceo .bio li{padding:10px 0 10px 18px;border-bottom:1px solid var(--line);position:relative}
.ceo .bio li::before{content:"";position:absolute;left:0;top:1.35em;width:8px;height:1px;background:var(--p)}

/* company */
.co{margin:48px 0 0;display:grid;grid-template-columns:9em 1fr;border-top:1px solid var(--line);font-size:15px}
.co dt,.co dd{margin:0;padding:18px 0;border-bottom:1px solid var(--line)}
.co dt{color:var(--t2);font-size:13.5px;letter-spacing:.08em}
.co dd ul{margin:0;padding:0;list-style:none}

/* contact & closing */
.sec.contact{text-align:left}
.ct-mail{display:inline-flex;align-items:center;gap:12px;margin-top:36px;font-family:"Shippori Mincho",serif;font-weight:600;font-size:clamp(20px,2.4vw,28px);color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:6px;letter-spacing:.04em}
.ct-mail:hover{border-color:#fff}
.ct-note{margin-top:18px;font-size:13.5px;color:#a9c4c2}
.closing{margin-top:96px;padding-top:56px;border-top:1px solid rgba(207,227,225,.18);display:flex;align-items:center;gap:28px}
.closing img{width:64px;height:64px}
.closing p{margin:0;font-family:"Shippori Mincho",serif;font-weight:600;font-size:clamp(20px,2.4vw,28px);color:#fff;letter-spacing:.06em;line-height:1.6}
.closing .hand{font-family:"Yuji Syuku",serif;font-weight:400;font-size:1.18em}

/* footer */
.ft{background:#0a2e30;color:#a9c4c2;font-size:12.5px;padding:36px 0}
.ft .in{max-width:calc(var(--max) + var(--gut)*2);margin:0 auto;padding:0 24px 0 calc(var(--gut) + 48px);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.ft a{color:#cfe3e1;text-decoration:none;border-bottom:1px solid transparent}
.ft a:hover{border-color:currentColor}
.ft nav{display:flex;gap:22px;flex-wrap:wrap}
.chk{background:#fff4d6;color:#7a5a00;font-size:11px;padding:1px 6px;border-radius:2px;margin-left:6px;font-family:"Noto Sans JP",sans-serif;font-weight:500;letter-spacing:0;white-space:nowrap}

/* reveal */
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .rv.on{opacity:1;transform:none}

@media (max-width:860px){
  :root{--gut:28px}
  .nav{display:none;position:fixed;inset:68px 0 auto 0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 24px 16px}
  .nav.open{display:flex}
  .nav a{color:var(--t)!important;padding:14px 0;border-bottom:1px solid var(--line)}
  .mb{display:block}
  .hd.menu{background:var(--bg)} .hd.menu .logo.wt{display:none}.hd.menu .logo.dk{display:block}.hd.menu .mb{color:var(--s)}
  .fv .in{grid-template-columns:1fr;padding:110px 20px 72px calc(var(--gut) + 20px)}
  .fv .art{right:-46vw;top:20%;width:118vw;opacity:.5}
  .fv h1{font-size:33px;letter-spacing:.04em}
  .sec{padding:84px 0}
  .sec .in,.stub .in{padding:0 20px 0 calc(var(--gut) + 20px)}
  .why{grid-template-columns:1fr}
  .why li{border-right:0;margin-right:0;border-bottom:1px solid var(--line);padding:24px 0 20px}
  .stages-pc{display:none}.stages-sp{display:block}
  .biz{grid-template-columns:1fr}
  .card{padding:24px 20px}
  .ring{grid-template-columns:1fr}
  .ring svg{max-width:240px;margin:0 auto}
  .plist a,.plist .nl{grid-template-columns:5.8em 1fr auto;gap:6px;padding:12px 0 12px 10px}
  .plist .nm{font-size:14px}.plist .rl{font-size:12px}.plist .soon{font-size:11px}
  .card{padding:24px 16px}
  .nd-list li{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .nd-list .to{width:1px;height:18px;margin:0 0 0 6px}
  .nd-list .to::after{right:-3px;top:auto;bottom:-1px;transform:rotate(135deg)}
  .nd-list .yes{font-size:16.5px}
  .ceo{grid-template-columns:1fr;gap:32px}
  .ph{max-width:240px}
  .co{grid-template-columns:1fr}
  .co dt{padding:16px 0 0;border-bottom:0}
  .co dd{padding:4px 0 16px}
  .closing{margin-top:64px;gap:18px}
  .closing img{width:48px;height:48px}
  .ft .in{padding:0 20px 0 calc(var(--gut) + 20px)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none;transition:none}
  .stages .gold{opacity:1;transition:none}
  .fv .art .rp,.fv .art .fl{animation:none}.fv .art .rp{opacity:0}
  *{transition:none!important}
}