/* ── Molly Studio — public site ─────────────────────────────────────────
   Design tokens. Single accent, warm neutrals, hairline rules.
   Type scale is fluid; every block is sized for a 1080p desktop first.  */

:root{
  --canvas:#FDFCFB;
  --surface:#FFFFFF;
  --tint:#F7F4F2;
  --ink:#17161A;
  --ink-2:#3A373D;
  --muted:#6E6A70;
  --line:rgba(23,22,26,.08);
  --accent:#B9736A;
  --accent-ink:#9A5B53;
  --accent-soft:#F4E7E4;
  --r-card:16px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(23,22,26,.04), 0 8px 24px rgba(23,22,26,.05);
  --shadow-lg:0 2px 6px rgba(23,22,26,.05), 0 24px 60px rgba(23,22,26,.09);
  --serif:"Cormorant Garamond", "Songti SC", Georgia, serif;
  --sans:-apple-system, BlinkMacSystemFont, "SF Pro Text", Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  --pad:96px;
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--canvas); color:var(--ink);
  font:16.5px/1.65 var(--sans);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%; display:block}
a{color:inherit; text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif); font-weight:400; letter-spacing:-.01em; margin:0}
p{margin:0}
button{font:inherit; color:inherit}
::selection{background:var(--accent-soft)}

.wrap{width:100%; max-width:var(--maxw); margin:0 auto; padding:0 32px}
.wrap.narrow{max-width:760px}
.center{text-align:center}
.muted{color:var(--muted)}

/* ── Nav ─────────────────────────────────────────────────────────────── */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(253,252,251,.78);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.nav.scrolled{border-bottom-color:var(--line)}
.nav-in{
  max-width:var(--maxw); margin:0 auto; padding:0 32px;
  height:64px; display:flex; align-items:center; gap:28px;
}
.brand{
  font:500 13.5px/1 var(--sans); letter-spacing:.22em; white-space:nowrap;
}
.nav-links{display:flex; gap:30px; margin-left:auto}
.nav-links a{
  font-size:14.5px; color:var(--ink-2); position:relative; padding:4px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--accent); transition:right .28s cubic-bezier(.2,.7,.3,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{right:0}
.lang{display:flex; align-items:center; gap:7px; font-size:13px; color:var(--muted)}
.lang button{
  background:none; border:0; padding:4px 2px; cursor:pointer; color:var(--muted);
  transition:color .2s ease;
}
.lang button.on{color:var(--ink); font-weight:600}
.lang button:hover{color:var(--accent-ink)}

/* ── Hero ────────────────────────────────────────────────────────────── */
.hero{
  max-width:var(--maxw); margin:0 auto;
  padding:clamp(80px,13vh,168px) 32px clamp(72px,11vh,148px);
  text-align:center;
}
.eyebrow{
  font-size:12.5px; letter-spacing:.2em; text-transform:uppercase;
  color:var(--accent-ink); margin-bottom:26px;
}
.hero h1{
  font-size:clamp(40px,6.6vw,84px); line-height:1.06; letter-spacing:-.025em;
  margin:0 auto 26px; max-width:100%; text-wrap:balance;
}
.lede{
  font-size:clamp(16px,1.4vw,19px); line-height:1.6; color:var(--muted);
  max-width:52ch; margin:0 auto; text-wrap:balance;
}
.hero-cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-top:40px}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--ink); color:#FDFCFB;
  padding:14px 28px; border-radius:var(--r-pill); border:1px solid var(--ink);
  font-size:15px; font-weight:500; white-space:nowrap; cursor:pointer;
  transition:transform .2s cubic-bezier(.2,.7,.3,1), background .2s ease, box-shadow .2s ease;
}
.btn:hover{background:#000; transform:translateY(-1px); box-shadow:var(--shadow)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent; color:var(--ink); border-color:var(--line)}
.btn.ghost:hover{background:var(--surface); border-color:rgba(23,22,26,.18); box-shadow:var(--shadow)}

/* ── Sections ────────────────────────────────────────────────────────── */
.sec{padding:var(--pad) 0}
.sec.tint{background:var(--tint); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.sec-head{max-width:640px; margin-bottom:52px}
.sec-head h2{font-size:clamp(32px,4vw,52px); line-height:1.1; margin-bottom:14px}
.sec-head p{color:var(--muted)}

.split{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.15fr); gap:clamp(32px,6vw,88px); align-items:start}
.split-l h2{font-size:clamp(32px,4.4vw,58px); line-height:1.08; letter-spacing:-.022em; position:sticky; top:104px; text-wrap:balance}
.split-r p{color:var(--ink-2); margin-bottom:20px; font-size:17px; text-wrap:pretty}
/* 中文全角字同尺寸下视觉比拉丁字母大一号，标题降一档，避免末尾两字单独成行 */
html[lang="zh-CN"] .split-l h2{font-size:clamp(28px,3.5vw,46px); letter-spacing:0}
html[lang="zh-CN"] .hero h1{font-size:clamp(36px,5.6vw,72px); letter-spacing:-.005em}
html[lang="zh-CN"] .sec-head h2,
html[lang="zh-CN"] .card-body h3,
html[lang="zh-CN"] .tool h4{letter-spacing:0; text-wrap:balance}
.facts{list-style:none; margin:34px 0 0; padding:0; display:grid; gap:0}
.facts li{display:flex; gap:18px; align-items:baseline; padding:15px 0; border-top:1px solid var(--line)}
.facts li:last-child{border-bottom:1px solid var(--line)}
.facts b{font:400 30px/1 var(--serif); color:var(--accent-ink); min-width:64px}
.facts span{color:var(--muted); font-size:15.5px}

/* ── Cards (Vlog) ────────────────────────────────────────────────────── */
.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); gap:26px}
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  overflow:hidden; box-shadow:var(--shadow);
  transition:transform .35s cubic-bezier(.2,.7,.3,1), box-shadow .35s ease;
}
.card:hover{transform:translateY(-4px); box-shadow:var(--shadow-lg)}
.thumb{aspect-ratio:4/3; position:relative; display:grid; place-items:center; overflow:hidden}
.thumb.t1{background:linear-gradient(135deg,#F2EAE6 0%,#E4D6CF 55%,#D8C4BB 100%)}
.thumb.t2{background:linear-gradient(135deg,#F5F1EA 0%,#E9DFD1 55%,#DCCEB9 100%)}
.thumb.t3{background:linear-gradient(135deg,#EFF1EC 0%,#DFE4DA 55%,#CCD5C6 100%)}
.thumb .ph{
  font-size:11.5px; letter-spacing:.16em; text-transform:uppercase;
  color:rgba(23,22,26,.58); border:1px solid rgba(23,22,26,.16);
  padding:6px 13px; border-radius:var(--r-pill);
  background:rgba(255,255,255,.72); -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
}
.card-body{padding:22px 24px 26px}
.meta{font-size:12.5px; letter-spacing:.05em; color:var(--accent-ink); margin-bottom:9px}
.card-body h3{font-size:23px; line-height:1.22; margin-bottom:8px}
.card-body p:last-child{color:var(--muted); font-size:15px}

/* ── Tools ───────────────────────────────────────────────────────────── */
.tiles{display:grid; grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); gap:18px}
.tile{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  padding:26px 24px 24px; box-shadow:var(--shadow); min-height:172px;
  display:flex; flex-direction:column; gap:9px;
}
.tile h4{font:600 16.5px/1.3 var(--sans); letter-spacing:-.005em}
.tile p{color:var(--muted); font-size:14.5px; flex:1}
.soon{
  align-self:flex-start; font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--accent-ink); background:var(--accent-soft);
  padding:4px 11px; border-radius:var(--r-pill);
}

.agent{
  margin-top:26px; padding:clamp(28px,4vw,44px);
  background:linear-gradient(135deg,#221F24 0%,#17161A 60%);
  color:#F7F4F2; border-radius:var(--r-card);
  display:flex; align-items:center; gap:32px; flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.agent-txt{flex:1 1 340px}
.agent h3{font-size:clamp(26px,3vw,38px); line-height:1.12; margin-bottom:10px}
.agent p{color:rgba(247,244,242,.66); max-width:56ch}
.agent .btn{background:#F7F4F2; color:#17161A; border-color:#F7F4F2}
.agent .btn:hover{background:#fff; color:#000}
.agent .btn,.agent p,.agent h3{white-space:normal}

/* ── Contact / footer ────────────────────────────────────────────────── */
.sec .center .lede{margin:18px auto 34px}
.foot{border-top:1px solid var(--line); padding:34px 0}
.foot-in{display:flex; gap:14px 28px; flex-wrap:wrap; justify-content:space-between; font-size:13.5px; color:var(--muted)}
.foot a{color:var(--muted); transition:color .2s ease}
.foot a:hover{color:var(--accent-ink)}

/* ── Agent sheet ─────────────────────────────────────────────────────── */
.sheet{position:fixed; inset:0; z-index:80; background:rgba(23,22,26,.4); display:flex; align-items:flex-end; justify-content:center; -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px)}
.sheet[hidden]{display:none}
.sheet-in{
  position:relative; background:var(--surface); width:min(620px,100%);
  border-radius:22px 22px 0 0; padding:38px 32px 34px; box-shadow:var(--shadow-lg);
  animation:up .34s cubic-bezier(.2,.7,.3,1);
}
@keyframes up{from{transform:translateY(22px); opacity:0}to{transform:none; opacity:1}}
.sheet-in h3{font-size:28px; margin-bottom:10px}
.sheet-in .x{position:absolute; top:14px; right:18px; background:none; border:0; font-size:26px; line-height:1; color:var(--muted); cursor:pointer}
.ask{display:flex; gap:10px; margin-top:22px}
.ask input{
  flex:1; min-width:0; font:inherit; padding:13px 16px; border-radius:var(--r-pill);
  border:1px solid var(--line); background:var(--tint); color:var(--ink);
}
.ask input:focus{outline:none; border-color:var(--accent); background:var(--surface)}
.ok{margin-top:16px; color:var(--accent-ink); font-size:14.5px}

/* ── Reveal on scroll ────────────────────────────────────────────────── */
.rv{opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1; transform:none}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (min-width:1440px){ :root{--pad:118px} body{font-size:17px} }
@media (max-width:1080px){
  .split{grid-template-columns:1fr; gap:28px}
  .split-l h2{position:static}
}
@media (max-width:760px){
  :root{--pad:66px}
  .wrap,.nav-in,.hero{padding-left:20px; padding-right:20px}
  .nav-links{display:none}
  .nav-in{gap:16px}
  .lang{margin-left:auto}
  .hero{padding-top:64px; padding-bottom:64px}
  .facts b{min-width:52px; font-size:26px}
  .agent{padding:26px; gap:20px}
  .ask{flex-direction:column}
  .foot-in{justify-content:flex-start}
}
@media (max-width:420px){
  .hero h1{font-size:38px}
  .btn{width:100%}
  .hero-cta{gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important; transition:none !important}
  .rv{opacity:1; transform:none}
}