/* =====================================================================
   DESIGN TOKENS: change colors, fonts and sizes here only
   ===================================================================== */
:root{
  --navy:#0A0E23;
  --navy-2:#0D1230;
  --navy-3:#11173A;
  --panel:#10142E;
  --panel-line:rgba(78,121,216,.16);
  --line:rgba(237,238,245,.10);
  --gold:#4E79D8;
  --gold-2:#2E4E9E;
  --gold-hi:#5E86DC;
  --gold-soft:rgba(78,121,216,.12);
  --on-gold:#FFFFFF;
  --ink:#EDEEF5;
  --ink-2:#B9BED6;
  --ink-3:#8A90AC;
  --surface-deep:#0B0F26;
  --bubble:#1A2044;
  --video-bg:#070A1C;
  --footer-bg:#080B1D;
  --radius:18px;
  --logo-size:44px;
  --font-sans:"Manrope","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Fraunces","Noto Serif SC","Songti SC",serif;
  /* Save your hero image as a file next to index.html, or paste your
     original data: URI here instead. */
  --hero-img:url("hero.webp");
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--navy);color:var(--ink);
  font-family:var(--font-sans);font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:var(--gold);color:var(--on-gold)}
a{color:inherit}
img{max-width:100%}
svg{color:var(--gold)}
.btn svg{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
section{position:relative}
.section-pad{padding:110px 0}
.sec-head{max-width:720px;margin-bottom:54px}
.sec-head h2{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(30px,4.2vw,44px);line-height:1.18;margin:14px 0 14px;letter-spacing:.01em;
}
.sec-head p{color:var(--ink-2);margin:0;font-size:17px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);
}
.kicker::before{content:"";width:26px;height:1px;background:var(--gold)}
.kicker.center::after{content:"";width:26px;height:1px;background:var(--gold)}

/* ---------- reveal animation ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* ---------- header / nav ---------- */
header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(10,14,35,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:28px;height:70px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.brand-logo{width:var(--logo-size);height:var(--logo-size);object-fit:contain;border-radius:12px;flex:none;display:block}
.brand-name{font-weight:800;letter-spacing:.06em;font-size:16.5px;line-height:1.1;white-space:nowrap}
.brand-name small{display:block;font-size:10px;font-weight:600;letter-spacing:.3em;color:var(--gold)}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{
  text-decoration:none;font-size:14.5px;font-weight:600;color:var(--ink-2);
  padding:8px 13px;border-radius:9px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--ink);background:rgba(237,238,245,.06)}
.lang-toggle{display:flex;flex:none;border:1px solid var(--panel-line);border-radius:999px;overflow:hidden;margin-left:8px}
.lang-toggle button{
  appearance:none;border:0;background:transparent;color:var(--ink-2);cursor:pointer;
  font-family:var(--font-sans);font-size:13.5px;font-weight:700;padding:8px 15px;transition:background .2s,color .2s;
}
.lang-toggle button.on{background:var(--gold);color:var(--on-gold)}
.burger{
  display:none;margin-left:6px;appearance:none;border:1px solid var(--panel-line);background:transparent;
  width:42px;height:42px;border-radius:11px;cursor:pointer;flex:none;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);margin:4px auto;border-radius:2px}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:10px 28px 18px;background:rgba(10,14,35,.97)}
.mobile-menu a{display:block;padding:11px 4px;text-decoration:none;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
header.open .mobile-menu{display:block}

.youtube-short{width:100%;height:auto;aspect-ratio:9/16;border:none}

/* ---------- hero ---------- */
.hero{
  padding:176px 0 96px;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(10,14,35,.30) 0%,rgba(10,14,35,.62) 55%,var(--navy) 100%),
    var(--hero-img) center 22%/cover no-repeat,
    var(--navy);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;border:1px solid var(--panel-line);
  background:rgba(13,18,48,.66);border-radius:999px;padding:7px 15px 7px 10px;
  font-size:13px;font-weight:600;color:var(--ink-2);
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px var(--gold-soft)}
.hero h1{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(40px,5.6vw,64px);line-height:1.12;margin:26px 0 20px;letter-spacing:.005em;
}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero-sub{color:var(--ink-2);font-size:18px;max-width:520px;margin:0 0 34px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;cursor:pointer;
  font-weight:700;font-size:15.5px;padding:14px 26px;border-radius:12px;border:1px solid transparent;
  transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;
}
.btn:active{transform:translateY(1px)}
.btn-gold{background:linear-gradient(180deg,var(--gold-hi),var(--gold) 55%,var(--gold-2));color:var(--on-gold);box-shadow:0 10px 30px -10px rgba(78,121,216,.55)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 36px -10px rgba(78,121,216,.6)}
.btn-ghost{border-color:rgba(237,238,245,.28);color:var(--ink);background:rgba(13,18,48,.45)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.hero-meta{display:flex;gap:38px;margin-top:52px;flex-wrap:wrap}
.hero-meta .m b{display:block;font-size:21px;font-weight:800;color:var(--ink);letter-spacing:.01em}
.hero-meta .m span{font-size:13px;color:var(--ink-3);font-weight:600;letter-spacing:.08em}

/* phone mock */
.phone-stage{display:flex;justify-content:center}
.phone{
  width:min(340px,86vw);border-radius:40px;padding:11px;
  background:linear-gradient(160deg,#232a52,#0d1129);
  border:1px solid rgba(78,121,216,.35);
  box-shadow:0 40px 80px -30px rgba(0,0,0,.75),0 0 0 1px rgba(0,0,0,.4);
}
.phone-screen{background:var(--surface-deep);border-radius:31px;overflow:hidden;border:1px solid rgba(237,238,245,.07)}
.chat-top{
  display:flex;align-items:center;gap:10px;padding:15px 16px 12px;
  border-bottom:1px solid var(--line);background:rgba(237,238,245,.03);
}
.chat-top .avatar{
  width:36px;height:36px;border-radius:12px;background:var(--gold-soft);border:1px solid var(--panel-line);
  display:grid;place-items:center;flex:none;
}
.chat-top .avatar svg{width:19px;height:19px}
.chat-top b{font-size:14.5px;display:block;line-height:1.25}
.chat-top span{font-size:11.5px;color:var(--ink-3)}
.chat-body{padding:18px 15px 8px;display:flex;flex-direction:column;gap:13px;min-height:308px}
.msg{max-width:86%;font-size:13.8px;line-height:1.55;padding:10px 13px;border-radius:15px}
.msg.them{align-self:flex-start;background:var(--bubble);border-bottom-left-radius:5px;color:var(--ink)}
.msg.me{align-self:flex-end;background:linear-gradient(180deg,var(--gold-hi),var(--gold));color:var(--on-gold);border-bottom-right-radius:5px;font-weight:600}
.msg .who{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:800;color:var(--gold);letter-spacing:.06em;margin-bottom:4px}
.msg .who svg{width:11px;height:11px}
.chat-note{align-self:center;font-size:11px;color:var(--ink-3);background:rgba(237,238,245,.05);padding:4px 11px;border-radius:99px}
.chat-input{
  display:flex;align-items:center;gap:9px;margin:10px 13px 15px;padding:10px 14px;
  border:1px solid var(--line);border-radius:99px;color:var(--ink-3);font-size:13px;background:rgba(237,238,245,.03);
}
.chat-input .send{margin-left:auto;width:26px;height:26px;border-radius:50%;background:var(--gold);display:grid;place-items:center;flex:none}
.chat-input .send svg{width:13px;height:13px;color:var(--on-gold)}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:64px;align-items:start}
.about-copy p{color:var(--ink-2);margin:0 0 18px;font-size:17px}
.about-copy p b{color:var(--ink)}
.fact-list{border-top:1px solid var(--line)}
.fact{display:flex;justify-content:space-between;gap:20px;padding:17px 2px;border-bottom:1px solid var(--line)}
.fact dt{color:var(--ink-3);font-size:13.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding-top:2px}
.fact dd{margin:0;font-weight:700;text-align:right}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.value{border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;background:var(--panel)}
.value svg{width:26px;height:26px;margin-bottom:13px}
.value h3{margin:0 0 7px;font-size:17px}
.value p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.6}

/* ---------- mission / vision ---------- */
.mv{background:linear-gradient(180deg,var(--navy) 0%,var(--navy-2) 50%,var(--navy) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mv-card{
  border:1px solid var(--panel-line);border-radius:22px;padding:42px 40px;position:relative;overflow:hidden;
  background:radial-gradient(120% 130% at 100% 0%,rgba(78,121,216,.13),rgba(78,121,216,0) 55%),var(--panel);
}
.mv-card .glyph{
  width:52px;height:52px;border-radius:15px;background:var(--gold-soft);border:1px solid var(--panel-line);
  display:grid;place-items:center;margin-bottom:22px;
}
.mv-card .glyph svg{width:26px;height:26px}
.mv-card h3{font-family:var(--font-serif);font-size:25px;font-weight:600;margin:0 0 6px}
.mv-card .mv-en-label{font-size:12px;letter-spacing:.24em;color:var(--gold);font-weight:800;text-transform:uppercase}
.mv-card blockquote{margin:20px 0 0;font-family:var(--font-serif);font-size:19.5px;line-height:1.75;font-weight:500;color:var(--ink)}
.mv-card .mv-translation{margin-top:16px;color:var(--ink-3);font-size:14.5px;line-height:1.65;font-style:italic}

/* ---------- products ---------- */
.prod-list{display:flex;flex-direction:column;gap:22px}
.prod{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;
  border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--panel);
}
.prod.rev .prod-media{order:2}
.prod-copy{padding:46px 44px}
.prod-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--gold);
  border:1px solid var(--panel-line);background:var(--gold-soft);border-radius:99px;padding:5px 13px;text-transform:uppercase;
}
.prod-copy h3{font-family:var(--font-serif);font-size:30px;font-weight:600;margin:18px 0 4px;line-height:1.25}
.prod-copy .prod-sub{color:var(--gold);font-weight:700;font-size:15px;margin:0 0 14px}
.prod-copy>p{color:var(--ink-2);margin:0 0 22px;font-size:16px}
.feat{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.feat li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--ink)}
.feat li svg{width:18px;height:18px;flex:none;margin-top:3px}
.feat li span{color:var(--ink-2)}
.feat li b{color:var(--ink);font-weight:700}
.prod-media{
  position:relative;min-height:340px;display:flex;align-items:center;justify-content:center;padding:38px;
  background:
    radial-gradient(90% 90% at 80% 10%,rgba(78,121,216,.14),rgba(78,121,216,0) 60%),
    linear-gradient(150deg,#131a42,var(--surface-deep));
  border-left:1px solid var(--line);
}
.prod.rev .prod-media{border-left:0;border-right:1px solid var(--line)}
.mini-chat{width:min(300px,100%);background:var(--surface-deep);border:1px solid rgba(237,238,245,.12);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 24px 50px -20px rgba(0,0,0,.7)}
.mini-chat .msg{font-size:12.8px;max-width:92%}
.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}
.cap{border:1px solid rgba(237,238,245,.12);border-radius:15px;padding:16px 15px;background:rgba(11,15,38,.72)}
.cap svg{width:22px;height:22px;margin-bottom:9px}
.cap b{display:block;font-size:14.5px;margin-bottom:3px}
.cap span{font-size:12.8px;color:var(--ink-3);line-height:1.5;display:block}
.cat-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;width:100%}
.cat-tile{border:1px solid rgba(237,238,245,.12);border-radius:15px;padding:18px 10px;text-align:center;background:rgba(11,15,38,.72)}
.cat-tile .ct-ic{font-size:21px;line-height:1;display:block;margin-bottom:8px;color:var(--gold)}
.cat-tile b{font-size:14px}
.mod-strip{
  grid-column:1/-1;display:flex;align-items:center;gap:10px;border:1px dashed rgba(78,121,216,.45);
  border-radius:13px;padding:11px 15px;font-size:13px;color:var(--ink-2);background:rgba(78,121,216,.06);
}
.mod-strip svg{width:17px;height:17px;flex:none}

/* ---------- demo ---------- */
.demo{background:linear-gradient(180deg,var(--navy),var(--navy-2) 55%,var(--navy));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.video-card{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--panel)}
.player{position:relative;aspect-ratio:9/16;max-width:400px;margin:0 auto;background:var(--video-bg);overflow:hidden}
.player video{position:absolute;inset:0;width:100%;height:100%;display:block;background:var(--video-bg)}
.video-meta{padding:20px 24px 24px;display:flex;align-items:flex-start;gap:14px}
.video-meta h3{margin:0 0 4px;font-size:18.5px}
.video-meta p{margin:0;color:var(--ink-2);font-size:14.5px}
.video-meta .vflag{margin-left:auto;flex:none;font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--gold);border:1px solid var(--panel-line);border-radius:8px;padding:5px 10px}

/* ---------- team ---------- */
.team-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:880px}
.member{display:flex;gap:22px;border:1px solid var(--line);border-radius:22px;padding:32px 30px;background:var(--panel);align-items:flex-start}
.member .monogram{
  width:76px;height:76px;flex:none;border-radius:22px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(78,121,216,.28),rgba(78,121,216,.08));
  border:1px solid var(--panel-line);font-family:var(--font-serif);font-size:27px;font-weight:600;color:var(--gold);
}
.member h3{margin:2px 0 2px;font-size:21px}
.member .role{color:var(--gold);font-weight:700;font-size:14px;margin:0 0 10px}
.member p.bio{color:var(--ink-2);font-size:14.5px;margin:0;line-height:1.65}

/* ---------- contact / footer ---------- */
.contact-card{
  border:1px solid var(--panel-line);border-radius:26px;padding:56px 48px;text-align:center;
  background:radial-gradient(90% 140% at 50% -20%,rgba(78,121,216,.16),rgba(78,121,216,0) 60%),var(--panel);
}
.contact-card h2{font-family:var(--font-serif);font-size:clamp(28px,4vw,40px);font-weight:600;margin:14px 0 12px}
.contact-card>p{color:var(--ink-2);max-width:560px;margin:0 auto 30px}
.contact-rows{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.contact-row{
  display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:13px;
  padding:12px 19px;font-weight:600;font-size:15px;background:rgba(11,15,38,.55);
}
.contact-row svg{width:18px;height:18px;flex:none}
.contact-row a{color:var(--gold);text-decoration:none}
.contact-row a:hover{text-decoration:underline}
footer{border-top:1px solid var(--line);padding:44px 0 50px;background:var(--footer-bg)}
.foot{display:flex;align-items:flex-start;gap:28px;flex-wrap:wrap}
.foot .brand-name{font-size:15px}
.foot nav{display:flex;gap:20px;flex-wrap:wrap;margin-left:auto}
.foot nav a{text-decoration:none;color:var(--ink-3);font-size:14px;font-weight:600}
.foot nav a:hover{color:var(--gold)}
.foot-bottom{
  margin-top:30px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;color:var(--ink-3);font-size:13.5px;
}
.foot-bottom .patent{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-weight:600}
.foot-bottom .patent svg{width:14px;height:14px}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .nav-links{display:none}
  .burger{display:block;margin-left:auto}
  .lang-toggle{margin-left:0}
  .brand{margin-right:auto}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero{padding-top:140px}
  .about-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:760px){
  :root{--logo-size:34px}
  .section-pad{padding:76px 0}
  .wrap{padding:0 20px}
  .nav{gap:10px}
  .brand{gap:8px;min-width:0}
  .brand-name{font-size:14.5px;letter-spacing:.03em}
  .brand-name small{font-size:8.5px;letter-spacing:.22em}
  .lang-toggle{margin-left:0}
  .lang-toggle button{padding:7px 11px;font-size:13px}
  .burger{width:38px;height:38px;margin-left:0}
  .mv-grid,.demo-grid,.team-grid{grid-template-columns:1fr}
  .prod{grid-template-columns:1fr}
  .prod.rev .prod-media{order:0;border-right:0;border-top:1px solid var(--line)}
  .prod-media{border-left:0;border-top:1px solid var(--line);min-height:0}
  .prod-copy{padding:34px 26px}
  .values{grid-template-columns:1fr}
  .member{flex-direction:column;gap:16px;padding:28px 24px}
  .contact-card{padding:42px 24px}
  .hero-meta{gap:26px}
  .mv-card{padding:32px 26px}
  .foot nav{margin-left:0}
}


/* ---------- our story ---------- */
.story {
  background: linear-gradient(
    180deg,
    var(--navy),
    var(--navy-2) 55%,
    var(--navy)
  );
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.story-card {
  max-width: 900px;
  padding: clamp(26px, 5vw, 54px);
  border: 1px solid var(--panel-line);
  border-radius: 24px;
  background:
    radial-gradient(
      100% 80% at 100% 0%,
      rgba(78, 121, 216, 0.10),
      transparent 65%
    ),
    var(--panel);
}

.story-content {
  color: var(--ink-2);
  font-size: 16.5px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.story-content p {
  margin: 0 0 1.5em;
}

.story-content p:last-child {
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .story-card {
    padding: 26px 22px;
    border-radius: 18px;
  }

  .story-content {
    font-size: 15.5px;
    line-height: 1.85;
  }
}