:root{
  --bg:#0B0B0C; --bg2:#121214; --card:#161618; --line:#222225; --line2:#3A3A3F;
  --fg:#F4F4F2; --fg2:#C9C9CD; --mute:#A3A3A8; --red:#E1061B;
  --display:'Anton','Oswald',Impact,sans-serif;
  --body:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --max:1280px; --pad:32px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{display:block;max-width:100%}
button{font:inherit}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--mute);text-transform:uppercase}
.display{font-family:var(--display);font-weight:400;text-transform:uppercase;line-height:.95;margin:0}
.red{color:var(--red)}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:rgba(11,11,12,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-head.scrolled{border-bottom-color:var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.brand img{width:46px;height:46px;object-fit:contain}
.brand span{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--mute)}
.nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{padding:12px 14px;font-size:15px;font-weight:600;text-decoration:none}
.nav a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:14px 22px;font-size:16px;font-weight:700;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-red{background:var(--red);color:#fff}
.btn-light{background:var(--fg);color:var(--bg)}
.btn-ghost{background:transparent;border-color:var(--line2);color:var(--fg)}
.btn-ghost:hover{border-color:var(--fg)}
.nav .btn{min-height:44px;padding:10px 18px;font-size:15px;margin-left:8px}
.btn svg{width:18px;height:18px;flex:none}

/* hero */
.hero .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:56px;padding-top:72px;padding-bottom:96px}
.hero-copy{flex:999 1 540px;min-width:0;display:flex;flex-direction:column;gap:30px}
.tag{display:flex;align-items:center;gap:12px}
.tag i{width:12px;height:12px;background:var(--red)}
.hero h1{margin:0;display:flex;flex-direction:column;gap:18px}
.hero h1 .big{font-family:var(--display);font-weight:400;font-size:clamp(64px,10.5vw,148px);line-height:.88;letter-spacing:-.005em;text-transform:uppercase}
.hero h1 .sub{display:flex;align-items:center;gap:16px;font-weight:700;font-size:clamp(17px,2.2vw,28px);letter-spacing:.32em;text-transform:uppercase}
.hero h1 .sub i{width:48px;height:3px;background:var(--red);flex:none}
.hero p{margin:0;max-width:520px;font-size:19px;line-height:1.55;color:var(--fg2)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.hero-demo{flex:1 1 300px;display:flex;flex-direction:column;align-items:center;gap:16px}
.phone{position:relative;width:300px;max-width:100%;aspect-ratio:320/480;background:var(--card);border:10px solid #222225;border-radius:34px;overflow:hidden}
.phone .frame-box{position:absolute;inset:0}
.phone iframe{position:absolute;top:0;left:0;border:0;transform-origin:0 0;background:#fff}
.play-cover{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border:0;padding:0;cursor:pointer;background:var(--card);color:var(--fg2)}
.play-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.play-cover .pbtn{position:relative;width:76px;height:76px;border-radius:50%;background:var(--red);display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 0 rgba(225,6,27,.5);animation:pulse 2.2s infinite}
.play-cover .pbtn svg{width:30px;height:30px;margin-left:4px}
.play-cover .plabel{position:relative;font-size:13px;font-weight:700;letter-spacing:.14em;color:#fff}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(225,6,27,.45)}70%{box-shadow:0 0 0 22px rgba(225,6,27,0)}100%{box-shadow:0 0 0 0 rgba(225,6,27,0)}}
.demo-cap{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;text-align:center}
.demo-cap b{font-size:18px}
@media (prefers-reduced-motion:reduce){.play-cover .pbtn{animation:none}html{scroll-behavior:auto}}

/* brand band */
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.band-track{display:flex;gap:56px;width:max-content;padding:26px 0;animation:marquee 40s linear infinite}
.band:hover .band-track{animation-play-state:paused}
.band-track span{font-family:var(--display);font-size:26px;letter-spacing:.02em;color:#8E8E94;text-transform:uppercase;white-space:nowrap}
@keyframes marquee{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.band-track{animation:none;flex-wrap:wrap;width:auto;padding-left:var(--pad)}}

/* work */
.work .wrap{padding-top:96px;padding-bottom:96px;display:flex;flex-direction:column;gap:40px}
.work-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px}
.work-head h2{font-size:clamp(44px,6vw,80px)}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:44px;padding:10px 18px;font-size:15px;font-weight:700;cursor:pointer;border:1.5px solid var(--line2);background:transparent;color:var(--fg)}
.chip span{opacity:.6;font-weight:600;margin-left:4px}
.chip[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:40px 24px}
.card{display:flex;flex-direction:column;gap:14px;text-decoration:none}
.card .thumb{position:relative;aspect-ratio:4/5;background:var(--card);border:1px solid var(--line);overflow:hidden;display:flex;align-items:center;justify-content:center}
.card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .thumb img{transform:scale(1.04)}
.card .ph{font-family:var(--display);font-size:42px;line-height:1;color:#2E2E33;text-transform:uppercase;text-align:center;padding:0 16px}
.label{position:absolute;left:0;bottom:0;display:flex}
.label i{width:10px;background:var(--red)}
.label b{padding:8px 12px;font-size:12px;font-weight:700;letter-spacing:.08em;background:var(--fg);color:var(--bg)}
.card .size{position:absolute;top:10px;right:10px;padding:5px 8px;font-size:11px;font-weight:700;letter-spacing:.06em;background:rgba(11,11,12,.75);color:var(--fg)}
.card .t{font-size:18px;font-weight:700;line-height:1.3}
.card .m{font-size:14px;color:var(--mute)}
.card:hover .t{color:#fff;text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:4px}
.more{align-self:center}
.empty{color:var(--mute);font-size:16px}

/* approach */
.approach{background:var(--bg2);border-top:1px solid var(--line)}
.approach .wrap{padding-top:96px;padding-bottom:96px;display:flex;flex-direction:column;gap:56px}
.approach-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px 64px}
.approach-head h2{font-size:clamp(44px,6vw,80px)}
.approach-head p{margin:0;flex:1 1 360px;max-width:520px;font-size:18px;line-height:1.6;color:var(--fg2)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px}
.step{display:flex;flex-direction:column;gap:16px;padding-top:24px;border-top:2px solid var(--fg)}
.step.hl{border-top-color:var(--red)}
.step h3{margin:0;font-family:var(--display);font-weight:400;font-size:40px;line-height:1;text-transform:uppercase}
.step p{margin:0;font-size:16px;line-height:1.6;color:var(--fg2)}

/* footer */
.foot .wrap{padding-top:120px;padding-bottom:48px;display:flex;flex-direction:column;gap:72px}
.foot-cta{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:32px}
.foot-cta h2{font-size:clamp(48px,8vw,112px)}
.foot-cta .btn{font-size:18px;padding:20px 28px}
.foot-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--mute)}
.foot-bar nav{display:flex;flex-wrap:wrap;gap:4px 20px}
.foot-bar a{padding:10px 0;text-decoration:none}
.foot-bar a:hover{color:var(--fg)}

/* case detail */
.back{display:inline-flex;align-items:center;gap:10px;padding:12px 0;font-size:15px;font-weight:700;text-decoration:none}
.back svg{width:18px;height:18px}
.detail .wrap{padding-top:32px;padding-bottom:96px;display:flex;flex-wrap:wrap;gap:56px;align-items:flex-start}
.stage-col{flex:999 1 600px;min-width:0;display:flex;flex-direction:column;gap:14px}
.stage{background:var(--bg2);border:1px solid var(--line);min-height:560px;display:flex;align-items:center;justify-content:center;padding:40px 20px}
.ad-box{position:relative;overflow:hidden;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.ad-box.mobile{border:10px solid #26262A;border-radius:30px;box-sizing:content-box}
.ad-box iframe{position:absolute;top:0;left:0;border:0;transform-origin:0 0}
.stage-tools{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--mute)}
.stage-tools .acts{display:flex;gap:8px;flex-wrap:wrap}
.tool{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 16px;font-size:14px;font-weight:700;border:1.5px solid var(--line2);background:transparent;color:var(--fg);cursor:pointer;text-decoration:none}
.tool:hover{border-color:var(--fg)}
.tool svg{width:16px;height:16px}
.info{flex:1 1 340px;min-width:0;display:flex;flex-direction:column;gap:32px}
.info .label{position:static}
.info h1{font-size:clamp(44px,5vw,68px)}
.info .desc{margin:0;font-size:17px;line-height:1.6;color:var(--fg2)}
.specs{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px;padding-top:24px;border-top:1px solid var(--line2)}
.specs div{display:flex;flex-direction:column;gap:6px}
.specs dt{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--mute)}
.specs dd{margin:0;font-size:16px;font-weight:600}
.specs .wide{grid-column:1/-1}
.story{background:var(--bg2);border-top:1px solid var(--line)}
.story .wrap{padding-top:80px;padding-bottom:80px;display:flex;flex-wrap:wrap;gap:24px 64px}
.story h2{flex:1 1 240px;font-size:clamp(44px,6vw,80px)}
.story-body{flex:999 1 520px;min-width:0;max-width:720px;display:flex;flex-direction:column;gap:20px}
.story-body p{margin:0;font-size:19px;line-height:1.7;color:var(--fg2)}
.story-body p:first-child{color:var(--fg);font-size:22px;line-height:1.55}
.pager{border-top:1px solid var(--line)}
.pager .wrap{padding-top:36px;padding-bottom:56px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px}
.pager a{display:flex;flex-direction:column;gap:6px;text-decoration:none;padding:8px 0}
.pager a.next{align-items:flex-end;text-align:right;margin-left:auto}
.pager small{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--mute)}
.pager b{font-size:20px}
.pager a:hover b{color:#fff;text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:4px}

@media (max-width:640px){
  :root{--pad:16px}
  .hero .wrap{padding-top:40px;padding-bottom:64px;gap:40px}
  .work .wrap,.approach .wrap{padding-top:64px;padding-bottom:64px}
  .foot .wrap{padding-top:72px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 12px}
  .card .t{font-size:15px}
  .card .ph{font-size:26px}
  .nav a:not(.btn){display:none}
  .stage{min-height:0;padding:24px 8px}
}