:root{--bg:#0b0b0c;--bg2:#121214;--card:#161618;--line:#2a2a2e;--ink:#f4f3f0;--mute:#a3a3a8;--acc:#e8e4da;--max:1080px;
--sans:"Inter",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
--serif:"Hiragino Mincho ProN","Yu Mincho",serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.85 var(--sans);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--bg);padding:8px 14px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
/* header */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;padding:10px 20px;padding-top:max(10px,env(safe-area-inset-top));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;letter-spacing:.26em;font-size:14px}
.mark{flex:none}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 12px;text-decoration:none;font-size:13px;letter-spacing:.12em;color:var(--mute);border-radius:6px}
.nav a:hover,.nav a[aria-current]{color:var(--ink)}
.cta-sm{padding:9px 18px;border:1px solid var(--ink);border-radius:999px;text-decoration:none;font-size:13px;font-weight:600;white-space:nowrap}
.cta-sm:hover{background:var(--ink);color:var(--bg)}
/* type */
h1,h2,h3{margin:0;font-weight:700;text-wrap:balance}
h1{font-family:var(--serif);font-size:clamp(30px,8vw,60px);line-height:1.35;letter-spacing:.02em}
h2{font-family:var(--serif);font-size:clamp(24px,5vw,34px);line-height:1.4;margin-bottom:12px}
h3{font-size:18px;line-height:1.5}
.eyebrow,.label{margin:0 0 14px;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--mute)}
.eyebrow a{text-decoration:none}
.lead{max-width:40em;margin:20px 0 0;color:var(--mute);font-size:clamp(15px,2.2vw,18px)}
.sub{color:var(--mute);margin:0 0 28px}
.fine{font-size:13px;color:var(--mute);line-height:1.7}
.warn{color:#ffb454;font-size:13px}
.ln{display:block}
/* hero */
.hero{padding:clamp(64px,14vw,150px) 0 clamp(48px,9vw,90px);border-bottom:1px solid var(--line);background:radial-gradient(900px 400px at 85% -10%,rgba(255,255,255,.07),transparent 70%)}
.hero h1{max-width:12em}
.facts{display:flex;flex-wrap:wrap;gap:28px 44px;list-style:none;padding:0;margin:56px 0 0}
.facts b{display:block;font-family:var(--serif);font-size:30px;line-height:1.2}
.facts span{font-size:12px;letter-spacing:.1em;color:var(--mute)}
.page-hero{padding:clamp(48px,9vw,96px) 0 clamp(24px,4vw,40px)}
/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 30px;border-radius:999px;font:600 15px var(--sans);letter-spacing:.06em;text-decoration:none;border:1px solid var(--ink);cursor:pointer;transition:transform .2s,background .2s,color .2s}
.btn-solid{background:var(--ink);color:var(--bg)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn:hover{transform:translateY(-2px)}
.btn-ghost:hover{background:var(--ink);color:var(--bg)}
.btn-block{display:flex;width:100%}
.btn:disabled{opacity:.55;transform:none}
/* sections */
.sec{padding:clamp(56px,9vw,104px) 0}
.sec-alt{background:var(--bg2);border-block:1px solid var(--line)}
.more{margin:32px 0 0}
.more a{font-size:14px;letter-spacing:.06em}
.svc-list{list-style:none;padding:0;margin:36px 0 0;display:grid;gap:0;border-top:1px solid var(--line)}
.svc{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.svc .no,.svc-detail .no{font:500 13px var(--sans);letter-spacing:.2em;color:var(--mute);padding-top:5px;min-width:28px}
.svc h3 small,.svc-detail h2 small{margin-left:12px;font:500 11px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--mute)}
.svc p{margin:4px 0 0;color:var(--mute);font-size:15px}
@media(min-width:860px){.svc-list{grid-template-columns:1fr 1fr;column-gap:56px}}
/* cards */
.grid{list-style:none;padding:0;margin:0;display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}
@media(min-width:960px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .25s,border-color .25s}
.card:hover{transform:translateY(-4px);border-color:var(--mute)}
.card[hidden]{display:none}
.card-link{display:block;text-decoration:none;height:100%}
.shot{display:block;aspect-ratio:16/10;overflow:hidden;background:#000}
.shot img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .5s}
.card:hover .shot img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:6px;padding:18px 20px 22px}
.kind{font-size:11px;letter-spacing:.2em;color:var(--mute)}
.card-title{font-weight:700;font-size:17px;line-height:1.5}
.card-sum{font-size:14px;color:var(--mute);line-height:1.7}
.tag-pending{margin-top:6px;font-size:11px;color:#ffb454}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filters button{min-height:42px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--mute);font:500 13px var(--sans);letter-spacing:.08em;cursor:pointer}
.filters button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
/* pillars */
.pillars{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:16px}
@media(min-width:760px){.pillars{grid-template-columns:repeat(3,1fr)}}
.pillars li{padding:26px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.pillars b{font-family:var(--serif);font-size:19px}
.pillars p{margin:10px 0 0;color:var(--mute);font-size:15px}
/* band */
.band{padding:clamp(64px,10vw,120px) 0;text-align:center;border-top:1px solid var(--line);background:var(--bg2)}
.band p{color:var(--mute)}
.band .btns{justify-content:center}
/* services detail */
.svc-detail{list-style:none;padding:0;margin:0}
.svc-detail>li{display:flex;gap:24px;padding:40px 0;border-bottom:1px solid var(--line)}
.svc-detail h2{margin-bottom:8px}
.svc-detail p{color:var(--mute);margin:0 0 12px}
.pts{padding-left:1.2em;margin:12px 0;color:var(--mute)}
.pts li{margin:4px 0}
.model{color:var(--ink)!important;font-size:14px}
.note{margin-top:48px;padding:28px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.note p{color:var(--mute);margin:0}
.flow{list-style:none;counter-reset:f;padding:0;margin:32px 0 0;display:grid;gap:14px}
@media(min-width:860px){.flow{grid-template-columns:repeat(5,1fr)}}
.flow li{counter-increment:f;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--card)}
.flow li::before{content:"0" counter(f);display:block;font-size:12px;letter-spacing:.2em;color:var(--mute);margin-bottom:6px}
.flow b{display:block}
.flow span{font-size:14px;color:var(--mute)}
/* work detail */
.work-shot{margin:0 0 36px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#000}
.spec{margin:0}
.spec>div{display:grid;gap:6px;padding:20px 0;border-top:1px solid var(--line)}
@media(min-width:760px){.spec>div{grid-template-columns:160px 1fr;gap:24px}}
.spec dt{font-size:12px;letter-spacing:.2em;color:var(--mute);padding-top:4px}
.spec dd{margin:0}
.chip{display:inline-block;margin:2px 6px 2px 0;padding:2px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--mute)}
.note-line{margin-top:20px}
/* prose */
.prose{max-width:46em}
.prose h2{margin-top:48px;font-size:24px}
.prose h2:first-child{margin-top:0}
.prose p{color:var(--mute)}
.prose .pts li{margin:10px 0}
.prose b{color:var(--ink)}
/* contact */
.contact-grid{display:grid;gap:40px}
@media(min-width:900px){.contact-grid{grid-template-columns:300px 1fr;gap:64px}}
form{display:grid;gap:20px;max-width:640px}
label>span:first-child{display:block;margin-bottom:6px;font-size:14px;font-weight:600}
label em{font-style:normal;font-weight:400;color:var(--mute);font-size:12px;margin-left:6px}
label i{font-style:normal;font-size:11px;color:var(--bg);background:var(--ink);padding:1px 8px;border-radius:99px;margin-left:6px}
input,select,textarea{width:100%;padding:14px 16px;font:16px var(--sans);color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--ink);outline-offset:1px;border-color:transparent}
.err{display:block;color:#ff8a80;font-size:13px;min-height:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.done{padding:36px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.done h2{margin-bottom:8px}
/* footer */
.foot{border-top:1px solid var(--line);padding:56px 0 32px}
.foot-grid{display:grid;gap:32px}
@media(min-width:760px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 18px;align-content:flex-start}
.foot nav a,.sns a{font-size:14px;color:var(--mute);text-decoration:none}
.foot nav a:hover,.sns a:hover{color:var(--ink)}
.sns{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0}
.copy{margin-top:36px}
/* motion（控えめ）*/
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.hero h1 .ln{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
.hero h1 .ln:nth-child(2){animation-delay:.12s}.hero h1 .ln:nth-child(3){animation-delay:.24s}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}html{scroll-behavior:auto}}
/* mobile */
@media(max-width:720px){
  .top{gap:10px;padding:10px 14px}
  .brand span{display:none}
  .nav{margin-left:0;flex:1;justify-content:flex-end;gap:0}
  .nav a{padding:8px 7px;font-size:12px;letter-spacing:.04em}
  .svc-detail>li{flex-direction:column;gap:6px}
  .btn{width:100%}
}