:root{
  --ink:#171512;
  --paper:#efe8dc;
  --milk:#faf6ef;
  --night:#14110e;
  --moss:#405041;
  --wine:#753a43;
  --rose:#cf8a79;
  --gold:#b79256;
  --blue:#596d82;
  --line:rgba(23,21,18,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Serif SC",serif;font-weight:300;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.scroll-meter{position:fixed;z-index:60;top:0;left:0;width:100%;height:3px;background:rgba(255,255,255,.12)}
.scroll-meter span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--rose),var(--gold),var(--blue))}
.nav{position:fixed;z-index:40;top:0;left:0;width:100%;display:flex;align-items:center;justify-content:space-between;padding:24px 5vw;color:#fff;transition:background .35s ease,border-color .35s ease,backdrop-filter .35s ease;border-bottom:1px solid rgba(255,255,255,.18)}
.nav.scrolled{background:rgba(20,17,14,.76);backdrop-filter:blur(18px);border-bottom-color:rgba(255,255,255,.08)}
.brand{display:flex;align-items:center;gap:12px;font-family:"Cormorant Garamond",serif;font-size:26px}
.brand b{font-weight:500}
.brand small{display:block;margin-top:-2px;font-family:"Noto Serif SC",serif;font-size:11px;letter-spacing:.24em}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid currentColor;border-radius:50%;font-style:italic}
.nav nav{display:flex;gap:28px;align-items:center;font-size:13px;letter-spacing:.12em}
.nav-download{border:1px solid rgba(255,255,255,.7);padding:10px 18px}
.lang-toggle{appearance:none;border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.08);color:#fff;border-radius:999px;padding:8px 12px;font:600 12px/1 system-ui,sans-serif;cursor:pointer}
.hero{position:relative;height:100svh;min-height:820px;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;margin:0;background:url("images/hero-shanghai-bund.png") center 54%/cover no-repeat;opacity:0;transform:scale(1.08);will-change:transform}
.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,9,7,.86),rgba(10,9,7,.42) 48%,rgba(10,9,7,.08)),linear-gradient(0deg,rgba(20,17,14,.8),transparent 54%)}
.hero-scenes{position:absolute;inset:0;overflow:hidden}
.hero-scenes span{position:absolute;inset:-4%;background:center/cover no-repeat;opacity:0;filter:saturate(.82) contrast(1.02);transform:scale(1.12);animation:sceneDrift 28s infinite}
.hero-scenes span:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,8,6,.82),rgba(9,8,6,.43) 46%,rgba(9,8,6,.16)),linear-gradient(0deg,rgba(20,17,14,.82),rgba(20,17,14,.06) 58%)}
.hero-scenes span:first-child{filter:saturate(.9) contrast(1.04)}
.hero-scenes span:nth-child(2){background-position:center 47%;animation-delay:7s}
.hero-scenes span:nth-child(3){background-position:center 56%;animation-delay:14s}
.hero-scenes span:nth-child(4){background-position:center 42%;animation-delay:21s}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.7;mix-blend-mode:screen}
.film-light{position:absolute;inset:-15%;background:linear-gradient(105deg,transparent 8%,rgba(207,138,121,.14) 22%,transparent 36%,rgba(183,146,86,.12) 53%,transparent 68%),radial-gradient(circle at 72% 42%,rgba(255,230,181,.2),transparent 26%);opacity:.86;animation:filmSweep 11s ease-in-out infinite alternate;pointer-events:none}
.grain{position:absolute;inset:0;opacity:.13;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.52'/%3E%3C/svg%3E")}
.hero-copy{position:absolute;left:5vw;right:5vw;top:47%;transform:translateY(-45%);max-width:none}
.hero-copy.reveal{transform:translateY(calc(-45% + 26px))}
.hero-copy.reveal.visible{transform:translateY(-45%)}
.eyebrow,.chapter{font-family:"Cormorant Garamond",serif;font-size:12px;letter-spacing:.27em;font-weight:500}
.hero h1{font-family:"Cormorant Garamond","Songti SC","STSong","Noto Serif SC",serif;font-size:clamp(56px,7.3vw,126px);font-weight:500;line-height:1.02;letter-spacing:.02em;margin:24px 0 20px;text-shadow:0 18px 48px rgba(0,0,0,.28);white-space:nowrap}
.hero h1 span{white-space:nowrap}
html[lang="zh-CN"] .hero h1{font-size:clamp(52px,6.4vw,112px)}
html[lang="en"] .hero h1{font-family:"Cormorant Garamond","Noto Serif SC",serif;font-style:italic;font-size:clamp(72px,8vw,124px);letter-spacing:.02em;font-weight:500}
.hero-line{font-size:clamp(25px,3vw,43px);line-height:1.42;color:#e5cfa4;margin:0 0 22px}
.hero-text{font-size:17px;line-height:2;max-width:610px;color:rgba(255,255,255,.84);margin:0}
.hero-actions{display:flex;align-items:center;gap:30px;margin-top:36px;position:relative;z-index:2}
.app-button{display:inline-flex;align-items:center;gap:12px;background:#f5f1e7;color:#171714;padding:12px 22px;border-radius:6px;font-family:system-ui,sans-serif;font-weight:650;min-width:196px;box-shadow:0 18px 45px rgba(0,0,0,.22);transition:transform .25s ease,background .25s ease}
.app-button:hover{transform:translateY(-2px);background:#fffaf0}
.coming-soon{cursor:default}
.coming-soon:hover{transform:none}
.app-button small{display:block;font-size:9px;font-weight:450;line-height:1.2}
.app-button b{display:block;font-weight:700;line-height:1.05}
.apple{font-size:18px}
.text-link{font-size:13px;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:6px}
.hero-note{position:absolute;right:7vw;bottom:17vh;width:min(300px,28vw);padding:24px;background:rgba(20,17,14,.38);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(18px)}
.hero-note span{font-size:11px;letter-spacing:.24em;color:#d9c6a5}
.hero-note strong{display:block;margin:12px 0 10px;font-size:44px;font-weight:300}
.hero-note p{margin:0;color:rgba(255,255,255,.78);line-height:1.8;font-size:13px}
.hero-note strong,.hero-note p{transition:opacity .45s ease,transform .45s ease}
.coordinates{position:absolute;bottom:24px;left:5vw;right:5vw;display:flex;justify-content:space-between;font:10px/1 system-ui;letter-spacing:.2em;color:rgba(255,255,255,.52);pointer-events:none}
.section-pad{padding:118px 8vw}
.chapter{color:var(--wine);margin:0 0 48px}
.manifesto-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:10vw;align-items:start}
.manifesto h2,.section-head h2,.motion h2,.download h2{font-size:clamp(40px,5vw,76px);line-height:1.24;font-weight:300;margin:0}
.lead{font-size:22px;line-height:1.9;margin:0 0 28px}
.manifesto-grid p:not(.lead){color:#6d685f;line-height:2;margin:0}
.features{background:linear-gradient(180deg,var(--milk),#e7dccb);position:relative;overflow:hidden}
.features:before{content:"";position:absolute;left:-12vw;top:8%;width:44vw;height:44vw;border-radius:50%;background:radial-gradient(circle,rgba(117,58,67,.14),transparent 68%);pointer-events:none}
.features:after{content:"";position:absolute;right:-9vw;bottom:-16%;width:38vw;height:38vw;border-radius:50%;background:radial-gradient(circle,rgba(89,109,130,.18),transparent 64%);pointer-events:none}
.features .section-head,.feature-grid{position:relative;z-index:1}
.features .section-head .chapter{color:var(--wine)}
.features .section-head>p{color:#6d685f}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feature-card{min-height:330px;padding:28px 24px 26px;border:1px solid rgba(23,21,18,.16);background:rgba(250,246,239,.58);backdrop-filter:blur(18px);display:flex;flex-direction:column;justify-content:flex-end;transition:transform .35s ease,background .35s ease,border-color .35s ease}
.feature-card:hover{transform:translateY(-6px);background:rgba(250,246,239,.84);border-color:rgba(117,58,67,.26)}
.feature-card span{font-family:"Cormorant Garamond",serif;color:var(--gold);font-size:22px;letter-spacing:.12em;margin-bottom:auto}
.feature-card h3{font-size:30px;font-weight:300;margin:90px 0 18px;color:#231f1a}
.feature-card p{margin:0;color:#675f55;font-size:14px;line-height:1.9}
.map-stage{background:#151612;color:#eee9df;position:relative;overflow:hidden}
.map-stage:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 20%,rgba(207,138,121,.28),transparent 28%),radial-gradient(circle at 78% 52%,rgba(89,109,130,.28),transparent 24%);opacity:.65}
.map-inner{position:relative}
.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:54px;gap:48px}
.section-head .chapter{margin-bottom:22px;color:#caa569}
.section-head>p{max-width:350px;font-size:13px;line-height:1.9;color:#bbb4a9}
.route-board{position:relative;min-height:440px;border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14);display:grid;grid-template-columns:repeat(4,1fr);align-items:center;gap:24px}
.route-line{position:absolute;left:7%;right:7%;top:50%;height:2px;background:rgba(238,233,223,.2)}
.route-line:before{content:"";position:absolute;left:0;top:0;width:var(--route-progress,0);height:100%;background:linear-gradient(90deg,var(--rose),var(--gold));transition:width .8s ease}
.route-line i{position:absolute;top:50%;width:11px;height:11px;border-radius:50%;background:#e7d9bd;transform:translate(-50%,-50%);box-shadow:0 0 0 12px rgba(231,217,189,.08)}
.route-line i:nth-child(1){left:0}.route-line i:nth-child(2){left:33%}.route-line i:nth-child(3){left:66%}.route-line i:nth-child(4){left:100%}
.route-pin{position:relative;z-index:2;align-self:end;margin-bottom:48px;padding:22px 22px 24px;background:rgba(245,241,231,.08);border:1px solid rgba(255,255,255,.14);border-radius:8px;transform:translateY(18px);transition:transform .45s ease,background .45s ease}
.route-pin:nth-of-type(even){align-self:start;margin:52px 0 0}
.route-pin.active,.route-pin:hover{transform:translateY(0);background:rgba(245,241,231,.15)}
.route-pin span{font-family:"Cormorant Garamond",serif;color:#d1ad75;font-size:18px}
.route-pin h3{font-size:30px;font-weight:300;margin:16px 0 12px}
.route-pin p{margin:0;color:#c8c2b7;line-height:1.8;font-size:14px}
.stories{background:#201c18;color:#eee9df;padding-top:84px}
.story-rail{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:18px}
.story-card{height:590px;position:relative;overflow:hidden;border-radius:8px}
.story-card img{width:100%;height:100%;object-fit:cover;filter:saturate(.68) contrast(.95);transition:transform 1s cubic-bezier(.2,.7,.2,1),filter 1s ease}
.story-card:hover img{transform:scale(1.045);filter:saturate(.92) contrast(1)}
.card-shade{position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,7,5,.86),transparent 62%)}
.card-copy{position:absolute;left:28px;right:25px;bottom:28px}
.card-copy p{font:10px system-ui;letter-spacing:.18em;color:#d9cdbb}
.card-copy h3{font-size:29px;line-height:1.42;font-weight:300;margin:15px 0}
.card-copy span{font-size:12px;color:#b8b0a4}
.motion{background:var(--milk)}
.motion-grid{display:grid;grid-template-columns:1fr 1fr;gap:7vw;align-items:center}
.motion-copy p{max-width:540px;line-height:2;color:#686258;margin:28px 0 34px}
.metrics{display:flex;gap:18px;flex-wrap:wrap}
.metrics span{min-width:132px;border-top:1px solid var(--line);padding-top:16px;color:#726b61;font-size:13px}
.metrics em{font-style:normal}
.metrics strong{display:block;font-family:"Cormorant Garamond";font-size:46px;font-weight:400;color:var(--wine);line-height:1}
.phone-lab{display:grid;place-items:center;min-height:680px;background:linear-gradient(145deg,#5d6759,#23231f 58%,#753a43);border-radius:8px;overflow:hidden}
.phone{width:318px;height:650px;border:9px solid #111;border-bottom-width:20px;border-radius:48px;background:#111;box-shadow:0 35px 80px rgba(0,0,0,.38);overflow:hidden;transform:rotate(-3deg)}
.phone-screen{height:100%;background:linear-gradient(0deg,rgba(8,8,7,.74),rgba(8,8,7,.16)),url("images/phone-new-york-rain.png") center/cover;color:#fff;padding:64px 24px 24px}
.screen-top span{display:block;font-size:11px;letter-spacing:.22em;color:#ecd5ad}.screen-top b{display:block;margin-top:12px;font-size:48px;font-weight:300}
.mini-map{position:relative;margin:54px 4px 38px;height:155px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08)}
.mini-map:before{content:"";position:absolute;left:16%;right:14%;top:52%;height:2px;background:linear-gradient(90deg,var(--rose),var(--gold));transform:rotate(-15deg)}
.mini-map i{position:absolute;width:12px;height:12px;border-radius:50%;background:#f2dfba;box-shadow:0 0 0 10px rgba(242,223,186,.12)}
.mini-map i:nth-child(1){left:18%;top:58%}.mini-map i:nth-child(2){left:48%;top:41%}.mini-map i:nth-child(3){right:15%;top:33%}
.screen-card{background:rgba(15,15,13,.62);border:1px solid rgba(255,255,255,.17);padding:18px;backdrop-filter:blur(14px)}
.screen-card small{color:#d9be8a}.screen-card strong{display:block;margin:10px 0 9px;font-size:20px;font-weight:400;line-height:1.35}.screen-card p{font-size:12px;line-height:1.8;color:#d7d2c8;margin:0}
.quote-band{height:660px;position:relative;display:grid;place-items:center;color:#fff;text-align:center;overflow:hidden}
.quote-image{position:absolute;inset:-8%;background:url("images/shanghai.jpg") center/cover;will-change:transform}
.quote-shade{position:absolute;inset:0;background:rgba(13,12,10,.58)}
blockquote{position:relative;font-size:clamp(34px,4.3vw,62px);font-weight:300;line-height:1.55;margin:0}
blockquote em{color:#dcc69f;font-style:normal}
.download{background:#d9d0c0}
.download-panel{max-width:1060px;margin:auto;color:#f0ece3;background:linear-gradient(135deg,#171512,#2b2923 58%,#4d3130);padding:78px 7vw;border-radius:8px;position:relative;overflow:hidden}
.download-panel:before{content:"";position:absolute;inset:0;background:url("images/hero-shanghai-bund.png") right center/44% auto no-repeat;opacity:.22;mix-blend-mode:screen}
.download-panel>*{position:relative}
.download-panel .chapter{color:#d1aa72;margin-bottom:30px}
.download-panel h2{max-width:none;white-space:nowrap;font-size:clamp(48px,6vw,104px)}
.download-panel p{max-width:560px;line-height:2;color:#c9c3b8;margin:24px 0 32px}
.download-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.app-button.light{background:#eee8dc;box-shadow:none}
.status-pill{border:1px solid rgba(255,255,255,.26);padding:13px 18px;font-size:13px}
.requirement{display:block;margin-top:18px;color:#9e9a91}
.beta-form{position:relative;margin-top:34px;max-width:740px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.beta-form label{display:block;color:#eee8dc;font-size:12px;letter-spacing:.08em}
.beta-form label:nth-child(4){grid-column:1 / -1}
.beta-form span{display:block;margin-bottom:9px;color:#b7aa97}
.beta-form input,.beta-form textarea{width:100%;border:1px solid rgba(255,255,255,.18);border-radius:6px;background:rgba(255,255,255,.08);color:#fff;padding:13px 14px;font:14px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Noto Serif SC",sans-serif;outline:none;transition:border-color .2s ease,background .2s ease}
.beta-form textarea{resize:vertical;min-height:92px}
.beta-form input::placeholder,.beta-form textarea::placeholder{color:rgba(255,255,255,.38)}
.beta-form input:focus,.beta-form textarea:focus{border-color:rgba(231,204,160,.74);background:rgba(255,255,255,.12)}
.submit-button{margin-top:16px;border:0;border-radius:6px;background:#eee8dc;color:#171512;padding:13px 20px;font:700 14px/1 system-ui,-apple-system,BlinkMacSystemFont,sans-serif;cursor:pointer;transition:transform .2s ease,opacity .2s ease}
.submit-button:hover{transform:translateY(-1px)}
.submit-button:disabled{cursor:wait;opacity:.68;transform:none}
.form-status{min-height:22px;margin:13px 0 0;color:#e5cfa4;font-size:13px;line-height:1.6}
.form-status.error{color:#f0a69a}
.form-legal{color:#c9c3b8;font-size:12px;line-height:1.8;margin:12px 0 0}
.form-legal a{color:#e5cfa4;text-decoration:underline;text-underline-offset:3px}
footer{padding:62px 8vw;background:#11100e;color:#d4d0c7;display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:40px;align-items:end}
footer>p{font-size:16px;line-height:1.9;margin:0}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;justify-content:flex-end;font-size:11px;color:#92908a}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .85s ease,transform .85s ease}
.reveal.visible{opacity:1;transform:none}
@keyframes sceneDrift{
  0%,3%{opacity:1;transform:scale(1.08) translate3d(0,0,0)}
  21%,28%{opacity:1}
  32%,100%{opacity:0;transform:scale(1.16) translate3d(-1.8%,1.2%,0)}
}
@keyframes singleSceneDrift{
  from{transform:scale(1.08) translate3d(0,0,0)}
  to{transform:scale(1.14) translate3d(-1.4%,.9%,0)}
}
@keyframes filmSweep{
  from{transform:translate3d(-3%,0,0) rotate(.4deg)}
  to{transform:translate3d(3%,-1%,0) rotate(-.4deg)}
}
@media(max-width:980px){
  .nav nav a:not(.nav-download){display:none}
  .hero-note{display:none}
  .manifesto-grid,.motion-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr 1fr}
  .story-rail{grid-template-columns:1fr 1fr}
  .story-large{grid-column:span 2}
  .route-board{grid-template-columns:1fr 1fr;gap:18px;padding:40px 0}
  .route-line{display:none}
  .route-pin,.route-pin:nth-of-type(even){align-self:auto;margin:0}
  .phone-lab{min-height:620px}
  footer{grid-template-columns:1fr}.footer-links{justify-content:flex-start}
}
@media(max-width:640px){
  .nav{padding:18px 6vw}.brand{font-size:23px}.brand-mark{width:32px;height:32px}.nav-download{padding:9px 12px}
  .hero{min-height:800px;height:100svh}.hero-copy{left:7vw;right:7vw;top:49%}.hero h1{font-size:clamp(44px,13vw,60px);letter-spacing:0;white-space:normal}.hero h1 span{display:block;font-size:.9em;line-height:1.08}html[lang="zh-CN"] .hero h1{font-size:clamp(44px,13vw,60px)}html[lang="en"] .hero h1{font-size:clamp(56px,17vw,74px);white-space:nowrap}.hero-line{font-size:clamp(25px,7.2vw,31px);max-width:8.8em}.hero-text{font-size:15px}
  .hero-copy.reveal{transform:translateY(calc(-45% + 26px))}.hero-copy.reveal.visible{transform:translateY(-45%)}
  .hero-actions{align-items:flex-start;flex-direction:column;gap:18px;margin-top:30px}.coordinates{bottom:18px}.coordinates span:nth-child(2){display:none}
  .section-pad{padding:84px 6vw}.chapter{margin-bottom:34px}
  .lead{font-size:18px}.section-head{display:block}.section-head>p{margin-top:20px}
  .route-board{grid-template-columns:1fr;min-height:auto}.route-pin{padding:20px}
  .feature-grid{grid-template-columns:1fr}.feature-card{min-height:240px}.feature-card h3{margin-top:58px}
  .story-rail{display:block}.story-card,.story-large{height:480px;margin-bottom:15px}
  .motion-copy h2,.download h2,.manifesto h2,.section-head h2{font-size:40px}
  .phone-lab{min-height:560px}.phone{width:278px;height:570px}.screen-top b{font-size:40px}.mini-map{margin-top:42px}
  .quote-band{height:520px}blockquote{padding:0 6vw;font-size:31px}
  .download{padding-left:0;padding-right:0}.download-panel{border-radius:0;padding:68px 7vw}.download-panel:before{background-size:auto 100%;opacity:.16}
  .form-grid{grid-template-columns:1fr}
  footer{padding:54px 7vw}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.hero-bg,.quote-image,.story-card img,.app-button,.route-pin{transition:none;transform:none}
  .hero-scenes span,.film-light{animation:none}.hero-scenes span:first-child{opacity:1}
}