.helian-landing{--bg:#ffffff;--panel:#f7f9fc;--panel-2:#eef3fb;--ink:#0d1117;--ink-2:#1e2733;--txt-muted:hsl(var(--muted-foreground));--txt-muted-2:#8994a5;--line:hsl(var(--border));--line-2:#dce4ee;--blue:var(--brand-blue);--blue-strong:#2f57f5;--blue-700:#1e49c9;--blue-soft:#eef3ff;--grid:74px;--grid-line:rgba(15,23,42,.07);--deco-line:#d3dae3;--ring-line:rgba(15,23,42,.06);--shadow:0 1px 2px rgba(13,17,23,.04),0 8px 24px -12px rgba(13,17,23,.10);--shadow-lg:0 24px 60px -24px rgba(37,99,235,.28);background-color:var(--bg);background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:var(--grid) var(--grid);color:var(--ink);line-height:1.5}html:has(.helian-landing){scroll-behavior:smooth}.helian-landing [id]{scroll-margin-top:88px}.helian-landing a{color:inherit;text-decoration:none}.helian-landing ::selection{background:var(--blue);color:#fff}.helian-landing .wrap{max-width:1160px;margin:0 auto;padding:0 28px}.helian-landing .eyebrow{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:16px}.helian-landing h1,.helian-landing h2,.helian-landing h3{margin:0;letter-spacing:-.03em;font-weight:800;line-height:1.05}.helian-landing p{margin:0}.helian-landing header{position:fixed;top:0;left:0;right:0;z-index:80;background:rgba(255,255,255,.55);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid rgba(230,235,242,.9)}.helian-landing .nav-inner{max-width:1160px;margin:0 auto;padding:0 28px;height:68px;display:flex;align-items:center;justify-content:space-between}.helian-landing .logo-link{display:flex;align-items:center;gap:.55rem}.helian-landing .logo-link .wm{height:26px;width:auto;display:block}.helian-landing .nav-links{display:flex;align-items:center;gap:34px}.helian-landing .nav-links 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.marquee-track{animation-play-state:paused}@keyframes helian-marquee{to{transform:translateX(-50%)}}.helian-landing .mq-logo{display:flex;align-items:center;gap:11px;color:#9aa6b6;flex:0 0 auto;white-space:nowrap;transition:color .2s}.helian-landing .mq-logo:hover{color:#5a6675}.helian-landing .mq-logo svg{width:27px;height:27px;flex:0 0 auto}.helian-landing .mq-logo span{font-size:1.14rem;font-weight:800;letter-spacing:-.025em}.helian-landing section.block{padding:96px 0}.helian-landing .sec-head{max-width:680px;margin:0 auto 52px;text-align:center}.helian-landing .sec-head h2{font-size:clamp(1.85rem,3.4vw,2.7rem)}.helian-landing .sec-head p{margin-top:16px;color:var(--txt-muted);font-size:1.1rem;line-height:1.55}.helian-landing .problem .sec-head{margin-bottom:40px;max-width:820px}.helian-landing .problem .sec-head h2{font-size:clamp(1.7rem,3vw,2.4rem)}.helian-landing .problem{background:var(--bg)}.helian-landing section.block.problem{padding-top:36px}.helian-landing 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h3{font-size:clamp(1.65rem,2.8vw,2.2rem);margin-bottom:14px;font-weight:800;letter-spacing:-.03em}.helian-landing .haley p{color:#dce4f5;font-size:1.1rem;line-height:1.55;font-weight:500;position:relative}.helian-landing .haley ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;position:relative}.helian-landing .haley li{display:flex;gap:11px;align-items:flex-start;font-size:.98rem;color:#e7edf7}.helian-landing .haley li svg{flex:0 0 auto;width:19px;height:19px;color:#7fa0ff;margin-top:1px}.helian-landing .testi{background:var(--bg)}.helian-landing .quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:960px;margin:0 auto}.helian-landing .quote{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:30px 28px;display:flex;flex-direction:column;margin:0}.helian-landing .quote .stars{color:var(--blue);letter-spacing:2px;font-size:.9rem;margin-bottom:14px}.helian-landing .quote blockquote{margin:0 0 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