:root{
  --ink:#111827;
  --muted:#667085;
  --line:#e4e7ec;
  --paper:#f7f8fa;
  --blue:#315efb;
  --blue-soft:#eef2ff;
  --white:#fff;
  --sans:Inter,"SF Pro Display","Segoe UI","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}.shell{width:min(1120px,calc(100% - 48px));margin-inline:auto}
.site-header{height:84px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:42px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img{width:42px;height:42px;border-radius:11px}.brand span,.brand b,.brand small{display:block}.brand b{font-size:18px}.brand small{font-size:10px;color:#8a94a6;margin-top:2px;letter-spacing:.04em}
.site-header nav{display:flex;gap:30px;margin-left:auto}.site-header nav a{font-size:15px;font-weight:600;text-decoration:none;color:#475467}.site-header nav a:hover{color:var(--blue)}
.header-download,.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:10px;font-size:16px;font-weight:700;text-decoration:none}
.header-download,.primary-button{background:var(--blue);color:#fff}.header-download{min-height:44px;padding-inline:19px;font-size:14px}.secondary-button{border:1px solid #cfd4dc;background:#fff}
.language-switch{height:42px;display:flex;align-items:center;gap:8px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:#101722;color:#fff;font:700 12px var(--sans);cursor:pointer}.language-switch i{width:1px;height:14px;background:#394356}.language-switch .language-next{color:#8995a9;font-weight:600}.language-switch:hover{border-color:#53627a}.language-switch:focus-visible{outline:3px solid #6384ff55;outline-offset:2px}
.menu{display:none;margin-left:auto;border:0;background:none;padding:8px}.menu i{display:block;width:26px;height:2px;background:var(--ink);margin:6px}
.hero{min-height:620px;display:flex;align-items:center;padding-block:100px}
.hero-copy{max-width:900px}
.tag{display:inline-block;padding:8px 12px;border-radius:999px;background:var(--blue-soft);color:var(--blue);font-size:14px;font-weight:700}
.hero h1{font-size:clamp(56px,6vw,76px);line-height:1.08;letter-spacing:-.055em;margin:24px 0}.hero h1 em{font-style:normal;color:var(--blue)}
.hero-copy>p{font-size:20px;line-height:1.75;color:var(--muted);max-width:610px}.hero-actions{display:flex;gap:12px;margin-top:34px}.hero-note{font-size:14px!important;margin-top:22px;color:#8a94a6!important}
.features{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);padding-block:34px}.features article{padding:10px 38px;border-right:1px solid var(--line)}.features article:first-child{padding-left:0}.features article:last-child{border:0}.features b{font-size:21px}.features p{font-size:16px;line-height:1.6;color:var(--muted);margin:8px 0 0}
.downloads{background:var(--paper);padding:110px 0}.section-title{text-align:center;max-width:680px;margin:0 auto 48px}.section-title>span,.nodes>div>span{color:var(--blue);font-size:15px;font-weight:750}.section-title h2{font-size:48px;letter-spacing:-.04em;margin:12px 0}.section-title p{font-size:18px;color:var(--muted)}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}.download-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column}.download-card.recommended{border:2px solid var(--blue);padding:27px;box-shadow:0 16px 40px #315efb17}.platform{display:flex;align-items:center;gap:12px}.platform>span{width:48px;height:48px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);font-size:20px}.platform h3{font-size:26px;margin:0}.platform small{display:none;margin-left:auto;padding:5px 8px;background:var(--blue-soft);color:var(--blue);border-radius:5px;font-weight:700}.recommended .platform small{display:block}.download-card>p{font-size:16px;line-height:1.65;color:var(--muted);margin:25px 0}.version-downloads{display:grid;gap:9px;margin-top:auto}
.download-button{display:flex;min-height:68px;align-items:center;justify-content:space-between;background:#171f2c;color:#fff;padding:12px 14px;border:1px solid #2d384a;border-radius:10px;text-decoration:none;transition:border-color .16s ease,background .16s ease,transform .16s ease}.download-button:hover{background:#202b3c;border-color:#6384ff;transform:translateY(-1px)}.download-button span,.download-button b,.download-button small{display:block}.download-button b{font-size:15px}.download-button small{font-size:11px;color:#9eabbf;margin-top:4px}.download-button em{font-size:19px;font-style:normal;color:#8ca3ff}.release-note{font-size:14px;line-height:1.7;color:var(--muted);margin-top:30px;text-align:center}.release-note a{color:var(--blue);font-weight:700;margin-left:8px}
.nodes{margin-block:110px;background:var(--blue);color:#fff;border-radius:24px;padding:64px;display:flex;align-items:center;justify-content:space-between;gap:50px}.nodes>div{max-width:700px}.nodes>div>span{color:#cdd7ff}.nodes h2{font-size:46px;line-height:1.18;letter-spacing:-.04em;margin:12px 0 18px}.nodes p{font-size:18px;line-height:1.7;color:#dbe2ff;margin:0}.nodes .primary-button{background:#fff;color:var(--blue);white-space:nowrap}
.about{text-align:center;padding:20px 0 110px;max-width:760px}.about h2{font-size:40px;margin:0 0 18px}.about p{font-size:18px;line-height:1.7;color:var(--muted)}.about a{display:inline-block;margin-top:12px;color:var(--blue);font-size:17px;font-weight:700}
.disclaimer{max-width:900px;margin-bottom:100px;padding:28px 32px;border:1px solid var(--line);border-radius:14px;background:var(--paper)}.disclaimer h2{font-size:20px;margin:0 0 10px}.disclaimer p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
footer{border-top:1px solid var(--line);padding:38px 0}.footer-row{display:flex;align-items:center;justify-content:space-between}.footer-row p{font-size:14px;color:var(--muted)}.footer-row>div:last-child{display:flex;gap:22px}.footer-row>div:last-child a{font-size:14px;color:#475467;text-decoration:none;font-weight:600}.mobile-download{display:none}

@media(max-width:900px){
  .site-header nav{display:none}.download-grid{grid-template-columns:1fr}.download-card{min-height:0}.nodes{padding:48px;display:block}.nodes .primary-button{margin-top:30px}.features article{padding-inline:22px}
}
@media(max-width:640px){
  .shell{width:min(100% - 32px,1120px)}.site-header{height:72px;gap:10px}.header-download{display:none}.language-switch{margin-left:auto;height:38px;padding-inline:10px}.menu{display:block;margin-left:0}.site-header nav{position:absolute;display:none;top:72px;left:16px;right:16px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 40px #1018281c;z-index:20;flex-direction:column}.site-header.open nav{display:flex}.brand img{width:38px;height:38px}.brand b{font-size:17px}
  .hero{min-height:0;padding-block:70px 80px}.tag{font-size:13px}.hero h1{font-size:48px}.hero-copy>p{font-size:18px}.hero-actions{flex-direction:column}.primary-button,.secondary-button{width:100%;font-size:17px}.hero-note{font-size:13px!important}
  .features{grid-template-columns:1fr;padding-block:18px}.features article,.features article:first-child{padding:22px 4px;border-right:0;border-bottom:1px solid var(--line)}.features article:last-child{border:0}.features b{font-size:20px}.features p{font-size:16px}
  .downloads{padding:80px 0}.section-title{text-align:left}.section-title h2{font-size:40px}.section-title p{font-size:17px}.download-card{padding:24px}.download-card.recommended{padding:23px}.platform h3{font-size:25px}
  .nodes{margin-block:80px;padding:38px 25px;border-radius:17px}.nodes h2{font-size:37px}.nodes p{font-size:17px}.about{padding-bottom:70px}.about h2{font-size:34px}.about p{font-size:17px}.disclaimer{margin-bottom:80px;padding:24px}
  .footer-row{display:block}.footer-row p{margin:24px 0}.footer-row>div:last-child{margin-bottom:56px}.mobile-download{display:block;position:fixed;left:16px;right:16px;bottom:12px;z-index:30}.mobile-download a{display:flex;justify-content:space-between;background:var(--ink);color:#fff;border-radius:10px;padding:16px 18px;text-decoration:none;font-size:16px;font-weight:700;box-shadow:0 12px 30px #10182838}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Simple dark theme */
:root{
  --ink:#f4f7ff;
  --muted:#9ca8bc;
  --line:#242c3b;
  --paper:#0e131d;
  --blue:#6384ff;
  --blue-soft:#17213c;
  --white:#080b12;
}
.brand small,.hero-note{color:#7f8ba0!important}
.site-header nav a,.footer-row>div:last-child a{color:#aab4c5}
.site-header nav a:hover{color:#fff}
.secondary-button{border-color:#344055;background:#0e1420}
.download-card{background:#121925}
.download-card.recommended{box-shadow:0 16px 40px #315efb24}
.platform small{color:#9db1ff}
.download-button{background:#202a3b}
.download-button small{color:#aab4c5}
.other-downloads a,.release-note a,.about a{color:#8ca3ff}
.nodes{background:#315efb}
.nodes .primary-button{background:#fff;color:#315efb}
@media(max-width:640px){
  .site-header nav{background:#111722;box-shadow:0 16px 40px #0008}
  .mobile-download a{background:var(--blue);box-shadow:0 12px 30px #0008}
}