:root{--bg-base:#0D1117;--bg-elevated:#131826;--bg-surface:#1A1F2E;--bg-navbar:rgba(13,17,23,.72);--text-primary:#E8EAED;--text-secondary:#9BA1AE;--text-muted:#8A92A0;--text-title:#F5F6F8;--border-subtle:var(--w-06);--border-default:var(--w-10);--border-strong:var(--w-16);--accent-brand: #1D4ED8;--accent-teal: #1D4ED8;--accent-brand-glow: rgba(29,78,216,.12);--accent-teal-glow: rgba(29,78,216,.10);--accent-brand-hover: #1E40AF;--bg-alt:#10141B;--accent-brand-glow-strong: rgba(29,78,216,.22);--w-03:rgba(255,255,255,.03);--w-04:rgba(255,255,255,.04);--w-05:rgba(255,255,255,.05);--w-06:rgba(255,255,255,.06);--w-07:rgba(255,255,255,.07);--w-08:rgba(255,255,255,.08);--w-09:rgba(255,255,255,.09);--w-10:rgba(255,255,255,.10);--w-12:rgba(255,255,255,.12);--w-14:rgba(255,255,255,.14);--w-16:rgba(255,255,255,.16);--w-18:rgba(255,255,255,.18);--w-20:rgba(255,255,255,.2);--w-22:rgba(255,255,255,.22);--w-24:rgba(255,255,255,.24);--w-25:rgba(255,255,255,.25);--w-28:rgba(255,255,255,.28);--w-30:rgba(255,255,255,.3);--w-35:rgba(255,255,255,.5);--w-38:rgba(255,255,255,.5);--w-40:rgba(255,255,255,.5);--w-42:rgba(255,255,255,.5);--w-44:rgba(255,255,255,.5);--w-45:rgba(255,255,255,.5);--w-55:rgba(255,255,255,.55);--w-50:rgba(255,255,255,.5);--w-52:rgba(255,255,255,.52);--w-56:rgba(255,255,255,.56);--w-60:rgba(255,255,255,.6);--w-64:rgba(255,255,255,.64);--w-66:rgba(255,255,255,.66);--w-72:rgba(255,255,255,.72);--w-75:rgba(255,255,255,.75);--w-78:rgba(255,255,255,.78);--w-84:rgba(255,255,255,.84);--card-veil:linear-gradient(to top,rgba(0,0,0,.92),transparent);--text-desc:#8A8A8A;}
.cta-primary{background:var(--accent-brand);color:var(--bg-base);font-weight:600;border:none}
.cta-primary:hover{background:var(--accent-brand-hover);border:none;color:var(--bg-base);transform:translateY(-1px);box-shadow:0 8px 32px var(--accent-brand-glow-strong)}
.cta-secondary{border:1px solid var(--border-strong);color:var(--text-primary);font-weight:500}
.cta-secondary:hover{border-color:var(--text-primary);background:var(--w-06)}
.eyebrow{display:inline-flex;align-items:center;gap:8px}
.eyebrow::before{content:'';width:24px;height:1px;background:var(--accent-teal)}
.sec:nth-of-type(even),.research:nth-of-type(even){background:var(--bg-alt)}
.sec,.research,.builtin{position:relative}
.sec::before,.research::before,.builtin::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:min(800px,calc(100% - 160px));height:1px;background:linear-gradient(90deg,transparent,var(--border-default) 30%,var(--border-default) 70%,transparent)}
@media (max-width:1024px){.nav-inner{padding:0 40px}.stats{gap:16px}}
@media (max-width:640px){.tagline{font-size:28px!important;line-height:1.2}.stat-num{font-size:36px}.trial{border-radius:16px;padding:14px 10px 10px}.demo-term{font-size:12px}.cta-primary,.cta-secondary{width:100%;text-align:center}.wb{flex-direction:column}.wb-chat{width:100%;border-right:none;border-bottom:1px solid var(--border-subtle)}.au-t{width:88px}}
@media (max-width:380px){.tagline{font-size:24px!important}.stat-num{font-size:32px}}
[data-theme="light"]{
--bg-base:#FFFFFF;--bg-elevated:#FFFFFF;--bg-surface:#F6F7F9;--bg-alt:#F6F7F9;--bg-navbar:rgba(255,255,255,.82);
--text-title:#0B0B0C;--text-primary:#1C1C1E;--text-secondary:#55565A;--text-muted:#86868B;--text-desc:#55565A;
--border-subtle:rgba(0,0,0,.055);--border-default:rgba(0,0,0,.10);--border-strong:rgba(0,0,0,.18);
--accent-teal:#1D4ED8;--accent-brand:#1D4ED8;--accent-brand-hover: #1E40AF;
--accent-teal-glow:rgba(29,78,216,.10);--accent-brand-glow:rgba(29,78,216,.12);--accent-brand-glow-strong:rgba(29,78,216,.22);
--shadow-card:0 1px 2px rgba(16,24,40,.04),0 12px 28px rgba(16,24,40,.07);--shadow-btn:0 1px 2px rgba(16,24,40,.08);
--ls-display:-.03em;--ls-h1:-.022em;--ls-h2:-.014em;--ls-h3:-.008em;
--card-veil:linear-gradient(to top,rgba(255,255,255,.96),transparent);
--w-03:rgba(0,0,0,0.048);--w-04:rgba(0,0,0,0.064);--w-05:rgba(0,0,0,0.08);--w-06:rgba(0,0,0,0.096);--w-07:rgba(0,0,0,0.112);--w-08:rgba(0,0,0,0.128);--w-09:rgba(0,0,0,0.144);--w-10:rgba(0,0,0,0.16);--w-12:rgba(0,0,0,0.192);--w-14:rgba(0,0,0,0.2);--w-16:rgba(0,0,0,0.2);--w-18:rgba(0,0,0,0.2);--w-20:rgba(0,0,0,0.2);--w-22:rgba(0,0,0,0.22);--w-24:rgba(0,0,0,0.24);--w-25:rgba(0,0,0,0.25);--w-28:rgba(0,0,0,0.28);--w-30:rgba(0,0,0,0.3);--w-35:rgba(0,0,0,0.35);--w-38:rgba(0,0,0,0.38);--w-40:rgba(0,0,0,0.4);--w-42:rgba(0,0,0,0.42);--w-44:rgba(0,0,0,0.44);--w-45:rgba(0,0,0,0.45);--w-50:rgba(0,0,0,0.5);--w-52:rgba(0,0,0,0.52);--w-56:rgba(0,0,0,0.56);--w-60:rgba(0,0,0,0.6);--w-64:rgba(0,0,0,0.64);--w-66:rgba(0,0,0,0.66);--w-72:rgba(0,0,0,0.72);--w-75:rgba(0,0,0,0.75);--w-78:rgba(0,0,0,0.78);--w-84:rgba(0,0,0,0.84);--w-55:rgba(0,0,0,.62)}
[data-theme="light"] .hero{
--text-title:#FFFFFF;--text-primary:rgba(255,255,255,.94);--text-secondary:rgba(255,255,255,.72);
--text-muted:rgba(255,255,255,.56);--text-desc:rgba(255,255,255,.72);
--accent-teal: #1D4ED8;--accent-brand: #1D4ED8;--accent-brand-hover: #1E40AF;
--border-subtle:rgba(255,255,255,.06);--border-default:rgba(255,255,255,.10);--border-strong:rgba(255,255,255,.16);--w-03:rgba(255,255,255,0.03);--w-04:rgba(255,255,255,0.04);--w-05:rgba(255,255,255,0.05);--w-06:rgba(255,255,255,0.06);--w-07:rgba(255,255,255,0.07);--w-08:rgba(255,255,255,0.08);--w-09:rgba(255,255,255,0.09);--w-10:rgba(255,255,255,0.1);--w-12:rgba(255,255,255,0.12);--w-14:rgba(255,255,255,0.14);--w-16:rgba(255,255,255,0.16);--w-18:rgba(255,255,255,0.18);--w-20:rgba(255,255,255,0.2);--w-22:rgba(255,255,255,0.22);--w-24:rgba(255,255,255,0.24);--w-25:rgba(255,255,255,0.25);--w-28:rgba(255,255,255,0.28);--w-30:rgba(255,255,255,0.3);--w-35:rgba(255,255,255,.5);--w-38:rgba(255,255,255,.5);--w-40:rgba(255,255,255,.5);--w-42:rgba(255,255,255,.5);--w-44:rgba(255,255,255,.5);--w-45:rgba(255,255,255,.5);--w-50:rgba(255,255,255,0.5);--w-52:rgba(255,255,255,0.52);--w-56:rgba(255,255,255,0.56);--w-60:rgba(255,255,255,0.6);--w-64:rgba(255,255,255,0.64);--w-66:rgba(255,255,255,0.66);--w-72:rgba(255,255,255,0.72);--w-75:rgba(255,255,255,0.75);--w-78:rgba(255,255,255,0.78);--w-84:rgba(255,255,255,0.84);}
[data-theme="light"] .hero::after{background:radial-gradient(ellipse 76% 66% at 50% 42%,rgba(13,17,23,.64) 0%,rgba(13,17,23,.34) 52%,rgba(13,17,23,0) 100%),linear-gradient(to bottom,rgba(13,17,23,.35),rgba(13,17,23,.18) 45%,rgba(0,0,0,.72));box-shadow:inset 0 0 240px 40px rgba(0,0,0,.38)}
[data-theme="light"] .hero .tagline,[data-theme="light"] .hero h1{color:#fff}
[data-theme="light"] .rcard-art{opacity:1}
[data-theme="light"] .tagline,[data-theme="light"] .hero-left .tagline{letter-spacing:var(--ls-display)}
[data-theme="light"] .sec-title,[data-theme="light"] .research-title,[data-theme="light"] .cta-panel-title{letter-spacing:var(--ls-h2)}
[data-theme="light"] .rcard,[data-theme="light"] .cta-panel-card{box-shadow:var(--shadow-card)}