:root{--bg:#0b0b10;--ink:#eaf2ff;--muted:#96a3bd;--glow:#7c5cff}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(60% 120% at 50% -10%,#121228,#0b0b10),#0b0b10;color:var(--ink);font:16px/1.5 ui-sans-serif,system-ui,Segoe UI,Inter,Arial}
.wrap{max-width:1120px;margin:48px auto;padding:0 20px}
.h{display:flex;align-items:center;gap:14px;margin:0 0 12px}
.h .dot{width:10px;height:10px;border-radius:50%;background:var(--glow);box-shadow:0 0 18px var(--glow)}
h1{font-size:28px;margin:0}
.sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.card{background:rgba(255,255,255,0.04);border:1px solid rgba(124,92,255,0.25);border-radius:16px;box-shadow:0 10px 40px rgba(124,92,255,.15);overflow:hidden}
.viewer{width:100%;height:78vh;border:0;display:block;background:#0b0b10}