/* RAINMAN — chrome on black */
:root{
  --bg:#050506; --bg2:#0d0d10; --line:rgba(255,255,255,.09); --line2:rgba(255,255,255,.18);
  --text:#ECECEF; --muted:#9A9AA3; --dim:#85858e;
  --chrome:linear-gradient(180deg,#ffffff 0%,#e6e6ea 28%,#9c9ca6 52%,#f4f4f7 70%,#b9b9c2 100%);
  --chrome-soft:linear-gradient(180deg,#ffffff 0%,#e9e9ee 55%,#b4b4bd 100%);
  --chrome-h:linear-gradient(100deg,#8f8f99 0%,#f6f6f8 30%,#b3b3bc 55%,#ffffff 78%,#9d9da7 100%);
  --display:"Montserrat","Noto Sans SC",system-ui,sans-serif;
  --body:"Noto Sans SC","Montserrat",system-ui,sans-serif;
  --pad:clamp(20px,5vw,72px); --max:1200px;
}
html[lang="ru"]{--body:"Montserrat","Noto Sans SC",system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font:400 16px/1.7 var(--body);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
::selection{background:#fff;color:#000}

/* nav */
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px var(--pad);background:rgba(5,5,6,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:10px}
.logo img{width:30px;height:30px}
.logo span{font:300 15px/1 "Montserrat",sans-serif;letter-spacing:.42em;background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:none;gap:30px;font-size:14px;color:var(--muted)}
.nav-links a:hover{color:#fff}
.nav-right{display:flex;align-items:center;gap:12px}
.lang{display:flex;border:1px solid var(--line2);border-radius:999px;padding:3px}
.lang button{white-space:nowrap;background:none;border:0;color:var(--muted);font:500 12px/1 var(--display);letter-spacing:.1em;padding:7px 11px;border-radius:999px;cursor:pointer}
.lang button.active{background:var(--chrome-h);color:#0a0a0b}
@media(min-width:960px){.nav-links{display:flex}}
.wa-icon{display:none;width:38px;height:38px;border-radius:50%;align-items:center;justify-content:center;background:var(--chrome-h);color:#08080a}
.wa-icon svg{width:20px;height:20px}
@media(max-width:420px){.nav{gap:8px;padding-inline:16px}.nav .btn-sm{display:none}.wa-icon{display:inline-flex;width:34px;height:34px}.nav-right{gap:8px}.lang button{padding:7px 8px;letter-spacing:.04em}.logo{gap:8px}.logo img{width:24px;height:24px}.logo span{font-size:12px;letter-spacing:.3em}}
@media(max-width:350px){.logo span{display:none}}
.nw{white-space:nowrap}

/* buttons */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:16px 30px;border-radius:999px;
  background:var(--chrome-h);background-size:200% 100%;color:#08080a;font:600 15px/1 var(--display);letter-spacing:.14em;text-transform:uppercase;
  transition:background-position .6s,transform .2s,box-shadow .3s;box-shadow:0 0 0 1px rgba(255,255,255,.4) inset,0 10px 30px -10px rgba(255,255,255,.35)}
html[lang="zh-CN"] .btn{letter-spacing:.24em;font-weight:500}
.btn:hover{background-position:100% 0;transform:translateY(-2px)}
.btn-sm{padding:11px 18px;font-size:12px}
.btn-ghost{background:transparent;color:var(--text);box-shadow:0 0 0 1px var(--line2) inset}
.btn-ghost:hover{box-shadow:0 0 0 1px #fff inset}
.btn-xl{padding:22px 48px;font-size:17px}

main,.footer{position:relative;z-index:1}

/* hero */
.hero{min-height:calc(100svh - 64px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:56px var(--pad) 72px;background:radial-gradient(60% 50% at 50% 38%,rgba(255,255,255,.07),transparent 70%)}
.eyebrow{font:400 12px/1.4 var(--display);letter-spacing:.32em;text-transform:uppercase;color:var(--muted);margin-bottom:28px}
.hero-title{display:flex;flex-direction:column;align-items:center;gap:26px;font-weight:300}
.hero-logo{width:min(78vw,460px);filter:drop-shadow(0 20px 50px rgba(255,255,255,.08))}
.hero-slogan{font:300 clamp(34px,7vw,76px)/1.15 var(--display);letter-spacing:.18em;background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent;padding:0 .1em}
html[lang="ru"] .hero-slogan{letter-spacing:.08em;text-transform:uppercase;font-size:clamp(28px,6vw,64px)}
.hero-en{margin-top:10px;font:300 clamp(14px,1.6vw,18px)/1 "Montserrat",sans-serif;letter-spacing:.5em;text-transform:uppercase;color:var(--muted)}
.hero-sub{max-width:640px;text-wrap:balance;margin:28px auto 0;color:#c8c8ce;font-size:clamp(15px,1.6vw,18px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;list-style:none;margin-top:40px}
.hero-tags li{font:400 12px/1 var(--display);letter-spacing:.14em;color:var(--muted);border:1px solid var(--line2);border-radius:999px;padding:9px 14px}

/* marquee */
.marquee{border-block:1px solid var(--line);overflow:hidden;padding:18px 0;background:#08080a}
.marquee-track{display:flex;gap:40px;width:max-content;animation:mq 30s linear infinite;align-items:center}
.marquee span{font:200 clamp(20px,3vw,34px)/1 var(--display);letter-spacing:.3em;white-space:nowrap;background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent}
.marquee i{font-style:normal;color:var(--dim);font-weight:200;font-size:28px}
@keyframes mq{to{transform:translateX(-50%)}}

/* sections */
.section{max-width:var(--max);margin:0 auto;padding:clamp(72px,10vw,130px) var(--pad) 0}
.kicker{font:300 13px/1 "Montserrat",sans-serif;letter-spacing:.4em;color:var(--dim);margin-bottom:18px;display:flex;align-items:center;gap:14px}
.kicker::after{content:"";height:1px;width:60px;background:linear-gradient(90deg,var(--line2),transparent)}
h2{font:300 clamp(28px,4.4vw,52px)/1.25 var(--display);letter-spacing:.06em;margin-bottom:clamp(32px,5vw,56px);max-width:900px;text-wrap:balance;
  background:var(--chrome-soft);-webkit-background-clip:text;background-clip:text;color:transparent}
html[lang="zh-CN"] h2{letter-spacing:.1em}
h3{font:500 18px/1.4 var(--display);letter-spacing:.04em;margin-bottom:10px;color:#f4f4f6}
html[lang="zh-CN"] h3{letter-spacing:.1em}

.grid{display:grid;gap:14px}
@media(min-width:640px){.grid-2,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}
.card{position:relative;padding:28px 24px;border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.01));transition:border-color .3s,transform .3s}
.card::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(160deg,rgba(255,255,255,.35),transparent 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.6;pointer-events:none}
.card p{color:var(--muted);font-size:15px}
.card.big{padding:34px 30px}
.card.big h3{font-size:22px}
.num{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line2);
  font:300 15px/1 "Montserrat";color:#fff;margin-bottom:20px}

/* feature (AI films) */
.feature{display:grid;gap:24px;align-items:center;padding:clamp(28px,4vw,48px);margin-bottom:14px;border-radius:22px;border:1px solid var(--line2);
  background:radial-gradient(80% 120% at 100% 0%,rgba(255,255,255,.12),transparent 55%),#0b0b0e;overflow:hidden}
.feature h3{font:300 clamp(22px,3vw,34px)/1.3 var(--display);letter-spacing:.05em;background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent}
.feature p{color:#bcbcc4;max-width:560px}
.feature-label{font:400 11px/1 var(--display)!important;letter-spacing:.32em;text-transform:uppercase;color:var(--muted)!important;margin-bottom:14px}
.feature-visual{display:flex;gap:6px;justify-content:center}
.feature-visual span{font:200 clamp(64px,10vw,120px)/1 "Montserrat";letter-spacing:.05em;background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative}
.feature-visual span:first-child{font-weight:600}
@media(min-width:860px){.feature{grid-template-columns:1.5fr 1fr}}

.langs{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;color:var(--muted);font-size:14px}
.langs ul{display:flex;gap:10px;list-style:none;flex-wrap:wrap}
.langs li{border:1px solid var(--line2);border-radius:999px;padding:8px 16px;color:#fff;font:400 14px/1 var(--body);letter-spacing:.06em}

/* process */
.steps{list-style:none;display:grid;gap:0;counter-reset:s;border-top:1px solid var(--line)}
.steps li{display:grid;grid-template-columns:64px 1fr;column-gap:16px;padding:26px 0;border-bottom:1px solid var(--line)}
.steps li span{grid-row:span 2;font:200 34px/1 "Montserrat";background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent}
.steps li p{color:var(--muted);font-size:15px}
@media(min-width:1024px){
  .steps{grid-template-columns:repeat(5,1fr);border-top:0}
  .steps li{display:block;padding:0 22px 0 0;border-bottom:0;border-top:1px solid var(--line2);padding-top:26px;position:relative}
  .steps li::before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:#fff;box-shadow:0 0 12px #fff}
  .steps li span{display:block;font-size:48px;margin-bottom:18px}
}

/* note */
.note{margin-top:28px;padding:26px 30px;border-left:1px solid #fff;background:linear-gradient(90deg,rgba(255,255,255,.06),transparent);border-radius:0 14px 14px 0}
.note-label{font:400 11px/1 var(--display);letter-spacing:.32em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.note-text{font:300 clamp(18px,2.2vw,24px)/1.5 var(--display);letter-spacing:.04em;color:#fff}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:24px 44px 24px 0;position:relative;font:400 clamp(16px,1.8vw,19px)/1.5 var(--display);letter-spacing:.03em;color:#f2f2f4}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font:200 28px/1 "Montserrat";color:var(--muted);transition:transform .3s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);color:#fff}
.faq details p{padding:0 0 24px;color:var(--muted);max-width:760px}

/* contact */
.contact{text-align:center;padding-bottom:clamp(80px,10vw,130px)}
.contact-title{margin:0 auto 14px;background:var(--chrome)!important;-webkit-background-clip:text!important;background-clip:text!important;font-size:clamp(34px,6vw,72px);font-weight:200}
.contact-sub{color:#c4c4cb;margin-bottom:40px}
.contact-grid{display:grid;gap:14px;max-width:820px;margin:0 auto 44px;text-align:left}
@media(min-width:720px){.contact-grid{grid-template-columns:1.2fr 1fr}}
.contact-col{display:grid;gap:14px;align-content:start}
.channel{position:relative;display:flex;flex-direction:column;gap:10px;padding:24px 26px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);transition:border-color .3s,background .3s}
.channel-link:hover{border-color:#fff;background:rgba(255,255,255,.05)}
.ch-label{font:400 12px/1 var(--display);letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.ch-value{font:400 clamp(17px,2vw,22px)/1.3 "Montserrat",sans-serif;letter-spacing:.04em;color:#fff;word-break:break-all}
.ch-arrow{position:absolute;right:22px;top:20px;font-style:normal;color:var(--muted);transition:transform .3s,color .3s}
.channel-link:hover .ch-arrow{color:#fff;transform:translate(3px,-3px)}
.wechat{align-items:center;text-align:center;gap:18px}
.qr-card{background:#fff;border-radius:14px;padding:6px;width:min(100%,260px);box-shadow:0 20px 50px -20px rgba(255,255,255,.25)}
.qr-card img{width:100%;image-rendering:auto}
.wechat-info{display:flex;flex-direction:column;gap:8px;align-items:center}
.ch-hint{font-size:13px;color:var(--muted)}

.footer{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between;padding:32px var(--pad);border-top:1px solid var(--line);color:var(--dim);font-size:13px}
.footer p:first-of-type{font:300 13px/1 "Montserrat";letter-spacing:.35em;text-transform:uppercase}

/* hero media layer: rain canvas + optional video */
.hero{position:relative;isolation:isolate;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:-1;pointer-events:none}
.hero-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero-media.has-video::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,5,6,.55),rgba(5,5,6,.35) 40%,var(--bg))}
.hero-rain{position:absolute;inset:0;width:100%;height:100%}

/* reveal — only hidden when JS has opted in, so content stays visible without JS */
.motion .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--rd,0s)}
.motion .reveal.in{opacity:1;transform:none}
/* JS drops .reveal after the entrance so hover transitions take over */

/* hover — pointer devices only */
.card,.steps li{transition:border-color .35s,transform .35s,box-shadow .35s}
.card::after,.steps li::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  background:linear-gradient(115deg,transparent 35%,rgba(255,255,255,.07) 50%,transparent 65%) 120% 0/250% 100% no-repeat;transition:opacity .35s,background-position .9s ease}
.steps li{position:relative}
@media (hover:hover) and (pointer:fine){
  .card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.28);box-shadow:0 18px 40px -24px rgba(255,255,255,.35),0 0 0 1px rgba(255,255,255,.06)}
  .card:hover::after,.steps li:hover::after{opacity:1;background-position:-20% 0}
  .steps li:hover{transform:translateY(-3px)}
  .steps li:hover span{filter:drop-shadow(0 0 10px rgba(255,255,255,.35))}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .motion .reveal{opacity:1;transform:none}
  .hero-rain{display:none}
}