/* studioarcent.com · 共享样式 v4（主页 = Hero + 联系；案例页 = 左图右注三行）
   基调：arcentai 海报系（奶油纸底 + 深紫黑墨色 + 紫 accent）+ Figtree */
:root{
  --paper:#FAF6EE;
  --paper-deep:#F4EEE1;
  --ink:#221A3F;
  --ink-soft:#4A4165;
  --ink-muted:#7A7292;
  --accent:#5B21B6;
  --accent-bright:#7C3AED;
  --hairline:rgba(34,26,63,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{color-scheme:light;scroll-behavior:smooth}
body{
  font-family:'Figtree',system-ui,-apple-system,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.wrap{max-width:1160px;margin:0 auto;padding:0 28px}

/* 入场动效 */
.rv{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
.rv.in{opacity:1;transform:none}

/* Header */
header{
  position:sticky;top:0;z-index:10;
  background:rgba(250,246,238,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hairline);
}
.bar{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:inline-flex;align-items:center;gap:0;text-decoration:none;flex-shrink:0}
.logo .anchor{width:3px;height:22px;background:var(--accent);border-radius:2px;margin-right:10px}
.logo .studio{font-weight:500;font-size:19px;letter-spacing:-.2px;color:var(--ink-soft)}
.logo .arcent{font-variation-settings:'wght' 780;font-size:19px;letter-spacing:.3px;color:var(--ink);margin-left:3px}
.nav{display:flex;gap:26px;margin-right:auto;margin-left:26px}
.nav a{
  font-size:15px;font-weight:500;text-decoration:none;color:var(--ink-soft);
  padding:4px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;
}
.nav a:hover{color:var(--ink)}
.nav a.on{color:var(--ink);font-variation-settings:'wght' 650;border-bottom-color:var(--accent)}
.langs{display:flex;gap:4px;flex-shrink:0}
.langs a{
  font-size:12px;font-weight:600;letter-spacing:.14em;text-decoration:none;
  color:var(--ink-muted);padding:6px 9px;border-radius:8px;
  transition:color .2s,background .2s;
}
.langs a:hover{color:var(--ink);background:rgba(34,26,63,.06)}
.langs a.on{color:var(--paper);background:var(--accent)}

/* Hero */
.hero{padding:96px 0 110px}
.hero-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:48px;align-items:center}
h1{
  font-size:clamp(40px,6.2vw,84px);
  font-variation-settings:'wght' 760;
  letter-spacing:-.028em;
  line-height:1.04;
}
h1 .outline{
  color:transparent;
  -webkit-text-stroke:2px var(--accent);
  font-style:italic;
  font-variation-settings:'wght' 700;
  letter-spacing:-.015em;
}
@supports not (-webkit-text-stroke:2px #000){
  h1 .outline{color:var(--accent)}
}
.lede{
  margin-top:28px;
  font-size:clamp(17px,1.8vw,21px);
  color:var(--ink-soft);
  max-width:30em;
}
.cta-row{margin-top:40px}
.btn{
  display:inline-block;
  font-variation-settings:'wght' 650;
  font-size:17px;
  color:var(--paper);
  background:var(--accent);
  text-decoration:none;
  border-radius:999px;
  padding:15px 34px;
  transition:background .2s,transform .2s,box-shadow .2s;
  box-shadow:0 4px 14px rgba(91,33,182,.25);
}
.btn:hover{background:var(--accent-bright);transform:translateY(-2px);box-shadow:0 8px 22px rgba(91,33,182,.3)}
.hero-art{display:flex;justify-content:flex-end}
.motif{width:100%;max-width:420px;height:auto}

/* Sections */
section{padding:88px 0}
.overline{
  font-size:11px;font-weight:600;letter-spacing:.3em;
  text-transform:uppercase;color:var(--accent);margin-bottom:16px;
}
h2{
  font-size:clamp(28px,3.6vw,46px);
  font-variation-settings:'wght' 720;
  letter-spacing:-.02em;line-height:1.15;
  max-width:18em;
}

/* Cases page */
.cases-intro{padding:72px 0 8px}
.cases-intro h2{margin-bottom:14px}
.cases-note{color:var(--ink-muted);font-size:16px;max-width:38em}
.cases-list{padding:24px 0 40px}
.case-row{
  display:grid;grid-template-columns:1.45fr 1fr;gap:52px;align-items:center;
  padding:52px 0;
}
.case-row + .case-row{border-top:1px solid var(--hairline)}
.case-shot img{
  width:100%;display:block;border-radius:16px;
  border:1px solid var(--hairline);
  box-shadow:0 18px 44px rgba(34,26,63,.14);
}
.case-tag{
  font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.case-note h3{
  font-size:clamp(24px,2.6vw,32px);
  font-variation-settings:'wght' 720;
  letter-spacing:-.015em;margin-bottom:14px;
}
.case-note p{color:var(--ink-soft);font-size:16.5px;max-width:26em}

/* Contact */
.contact{text-align:center;border-top:1px solid var(--hairline)}
.contact .overline{margin-bottom:20px}
.contact-q{margin:0 auto 20px;max-width:16em}
.contact-p{color:var(--ink-soft);max-width:32em;margin:0 auto;font-size:17px}
.contact-or{color:var(--ink-muted);margin:28px auto 14px;font-size:14px}
.mail{
  display:inline-block;
  font-variation-settings:'wght' 650;
  font-size:clamp(17px,2vw,21px);
  color:var(--accent);
  text-decoration:none;
  border:1.5px solid var(--accent);
  border-radius:999px;
  padding:12px 26px;
  transition:background .2s,color .2s;
}
.mail:hover{background:var(--accent);color:var(--paper)}

/* Footer */
footer{border-top:1px solid var(--ink);position:relative;overflow:hidden;background:var(--paper-deep)}
.ghost{
  font-variation-settings:'wght' 850;
  font-size:clamp(64px,13vw,180px);
  letter-spacing:-.03em;
  line-height:1;
  color:rgba(34,26,63,.05);
  white-space:nowrap;
  text-align:center;
  padding:28px 0 0;
  user-select:none;
}
.foot-inner{text-align:center;padding-top:8px;padding-bottom:44px}
.footer-sub{
  font-size:10px;font-weight:600;letter-spacing:.26em;text-transform:uppercase;
  color:var(--ink-muted);margin-bottom:10px;
}
.footer-copy{font-size:13px;color:var(--ink-muted)}

/* Responsive */
@media (max-width:920px){
  .bar{height:auto;flex-wrap:wrap;padding:12px 0;row-gap:2px}
  .nav{order:3;width:100%;margin:6px 0 0;gap:22px}
  .hero{padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-art{justify-content:flex-start}
  .motif{max-width:250px}
  section{padding:64px 0}
  .cases-intro{padding:48px 0 0}
  .case-row{grid-template-columns:1fr;gap:24px;padding:40px 0}
  .case-note p{max-width:none}
}