:root{
  --ink:#14122B;--ink-2:#3A3D55;--muted:#5E6178;--line:#E7E8F2;
  --bg:#F4F5FB;--card:#FFFFFF;--brand:#5B3DF5;--brand-2:#4327D9;--brand-soft:#ECE8FF;
  --teal:#1A8F85;--orange:#F2A33A;--night:#1E1B4B;
  --radius:24px;--shadow:0 10px 30px rgba(42,30,120,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Plus Jakarta Sans','Hind Siliguri',system-ui,sans-serif;line-height:1.6}
img{max-width:100%;height:auto}
a{color:var(--brand)}a:hover{color:var(--brand-2)}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.nav{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.nav .wrap{display:flex;align-items:center;gap:16px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img.mark{width:40px}
.brand img.word{width:118px}
.nav-links{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.nav-links a{color:var(--ink-2);text-decoration:none;font-weight:600;font-size:15px;padding:10px 12px;border-radius:12px}
.nav-links a:hover{background:var(--bg);color:var(--ink)}
.hero{padding:72px 0 56px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:#3B23C9;font-weight:700;font-size:14px;padding:6px 14px;border-radius:999px}
h1{font-family:'Hind Siliguri',sans-serif;font-size:clamp(34px,5vw,56px);line-height:1.15;margin:18px 0 14px;letter-spacing:-.5px}
.lead{font-size:18px;color:var(--muted);max-width:560px;margin:0 0 28px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:52px;padding:0 22px;border-radius:16px;font-weight:700;font-size:16px;text-decoration:none;border:0}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(91,61,245,.3)}
.btn-primary:hover{background:var(--brand-2);color:#fff}
.btn-ghost{background:var(--card);color:var(--night);border:1.5px solid var(--line)}
.btn[aria-disabled="true"]{cursor:default}
.hero-art{background:var(--card);border-radius:36px;box-shadow:var(--shadow);aspect-ratio:1;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.hero-art::before{content:"";position:absolute;width:70%;height:70%;border-radius:50%;background:var(--brand-soft);top:-18%;right:-18%}
.hero-art img{width:68%;position:relative}
.features{padding:24px 0 72px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{background:var(--card);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{font-family:'Hind Siliguri',sans-serif;font-size:20px;margin:14px 0 6px}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.ico{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center}
.band{background:var(--night);color:#fff;border-radius:32px;padding:40px;display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-bottom:72px}
.band h2{font-family:'Hind Siliguri',sans-serif;margin:0 0 6px;font-size:28px}
.band p{margin:0;color:#C9C6EA}
.band .btn{margin-left:auto}
footer{background:var(--card);border-top:1px solid var(--line);padding:32px 0;font-size:14.5px;color:var(--muted)}
footer .wrap{display:flex;gap:16px 28px;flex-wrap:wrap;align-items:center}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--ink-2);text-decoration:none;font-weight:600}
footer a:hover{color:var(--brand)}
footer .copy{margin-left:auto}
.doc{max-width:780px;margin:0 auto;padding:48px 20px 72px}
.doc h1{font-size:clamp(30px,4vw,42px);margin:0 0 6px}
.doc .meta{color:var(--muted);font-size:14.5px;margin:0 0 28px}
.doc section{background:var(--card);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow);margin-bottom:16px}
.doc h2{font-family:'Hind Siliguri',sans-serif;font-size:21px;margin:0 0 8px}
.doc p,.doc li{font-size:16px;color:var(--ink-2)}
.doc ul,.doc ol{padding-left:22px;margin:8px 0}
.doc .en{color:var(--muted);font-size:15px;border-top:1px dashed var(--line);margin-top:14px;padding-top:12px}
.note{background:#FFF7E8;border:1.5px solid #F6D9A8;color:#6B4300;border-radius:18px;padding:16px 18px;font-size:15px;margin-bottom:16px}
@media (max-width:820px){
  .hero{padding:40px 0 32px}
  .hero .wrap{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-art{max-width:360px;width:100%;margin:0 auto}
  .grid{grid-template-columns:minmax(0,1fr)}
  .band{padding:28px}
  .band .btn{margin-left:0}
  footer .copy{margin-left:0}
  .nav-links{margin-left:0;width:100%}
}
.ico-1{background:#ECE8FF;color:#5B3DF5}.ico-2{background:#E6F5F3;color:#1A8F85}.ico-3{background:#FFF1D6;color:#9A5A00}