:root{
  --vt-blue:#0868A5;--vt-blue-dark:#05527f;--vt-blue-soft:#eaf4fb;--vt-ink:#142b3f;
  --vt-muted:#61788b;--vt-bg:#f5f8fb;--vt-card:#fff;--vt-line:#dbe6ee;--vt-green:#187b61;
  --vt-shadow:0 18px 50px rgba(20,43,63,.08);--vt-shadow-sm:0 8px 24px rgba(20,43,63,.06);
  --vt-radius:22px;--vt-radius-sm:14px;--vt-wrap:1180px;--vt-reading:76ch
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--vt-ink);background:linear-gradient(180deg,#fbfdff 0,#f4f8fb 34%,#fff 100%);line-height:1.68;-webkit-font-smoothing:antialiased}a{color:var(--vt-blue);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--vt-blue-dark)}img{max-width:100%;height:auto}.vt-skip{position:absolute;left:-9999px}.vt-skip:focus{left:16px;top:16px;z-index:9999;background:#fff;padding:10px 14px;border:2px solid var(--vt-blue);border-radius:10px}.vt-wrap{width:min(calc(100% - 32px),var(--vt-wrap));margin-inline:auto}.vt-topbar{background:#0f2638;color:#dce8f0;font-size:.82rem}.vt-topbar .vt-wrap{display:flex;justify-content:space-between;gap:20px;padding:7px 0}.vt-topbar a{color:#fff}.vt-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(219,230,238,.9)}.vt-header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.vt-brand{display:flex;align-items:center;gap:12px;color:var(--vt-ink);text-decoration:none}.vt-brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--vt-blue),#0b8bd2);color:#fff;font-weight:650;box-shadow:0 8px 20px rgba(8,104,165,.22)}.vt-brand-copy{display:flex;flex-direction:column;line-height:1.1}.vt-brand-copy strong{font-size:1rem}.vt-brand-copy span{font-size:.75rem;color:var(--vt-muted);margin-top:4px}.vt-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}.vt-nav a{color:var(--vt-ink);font-size:.9rem;font-weight:650;text-decoration:none;padding:9px 10px;border-radius:10px}.vt-nav a:hover,.vt-nav a[aria-current="page"]{background:var(--vt-blue-soft);color:var(--vt-blue-dark)}.vt-main{padding:44px 0 70px}.vt-breadcrumb{font-size:.84rem;color:var(--vt-muted);margin-bottom:18px}.vt-breadcrumb a{color:var(--vt-muted)}.vt-hero{position:relative;overflow:hidden;border:1px solid var(--vt-line);border-radius:30px;background:linear-gradient(135deg,#fff 0%,#f3f9fd 62%,#e9f5fb 100%);box-shadow:var(--vt-shadow);padding:clamp(28px,5vw,62px)}.vt-hero:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;right:-100px;top:-120px;background:radial-gradient(circle,rgba(8,104,165,.18),rgba(8,104,165,0) 68%);pointer-events:none}.vt-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.76rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--vt-blue-dark);background:var(--vt-blue-soft);padding:7px 10px;border-radius:999px}.vt-hero h1{font-size:clamp(2rem,5vw,4rem);line-height:1.02;letter-spacing:-.045em;margin:18px 0 18px;max-width:17ch}.vt-hero p{font-size:clamp(1rem,1.8vw,1.18rem);color:#4f687c;max-width:72ch;margin:0}.vt-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.vt-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none!important;font-weight:600;border-radius:12px;padding:11px 15px;border:1px solid var(--vt-line);background:#fff;color:var(--vt-ink);box-shadow:var(--vt-shadow-sm)}.vt-btn:hover{transform:translateY(-1px);color:var(--vt-blue-dark);border-color:#b8d4e6}.vt-btn-primary{background:var(--vt-blue);border-color:var(--vt-blue);color:#fff}.vt-btn-primary:hover{background:var(--vt-blue-dark);color:#fff}.vt-trustbar{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 0}.vt-trustitem{background:rgba(255,255,255,.78);border:1px solid var(--vt-line);border-radius:13px;padding:12px 14px}.vt-trustitem span{display:block;font-size:.72rem;color:var(--vt-muted);text-transform:uppercase;letter-spacing:.04em}.vt-trustitem strong{font-size:.9rem}.vt-section{padding:52px 0 0}.vt-section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:18px}.vt-section-head h2,.vt-prose h2{font-size:clamp(1.45rem,2.8vw,2.15rem);line-height:1.15;letter-spacing:-.025em;margin:0}.vt-section-head p{color:var(--vt-muted);max-width:65ch;margin:8px 0 0}.vt-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.vt-card{grid-column:span 4;background:var(--vt-card);border:1px solid var(--vt-line);border-radius:var(--vt-radius);padding:22px;box-shadow:var(--vt-shadow-sm)}.vt-card.wide{grid-column:span 6}.vt-card.full{grid-column:1/-1}.vt-card h2,.vt-card h3{margin:0 0 8px;line-height:1.2}.vt-card p{margin:0;color:var(--vt-muted)}.vt-card ul{margin:15px 0 0;padding-left:19px}.vt-card li+li{margin-top:6px}.vt-card-link{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-top:16px;font-weight:600;text-decoration:none}.vt-card-link:after{content:"→"}.vt-tag{display:inline-flex;font-size:.72rem;font-weight:600;color:var(--vt-blue-dark);background:var(--vt-blue-soft);padding:5px 8px;border-radius:999px;margin-bottom:12px}.vt-prose{max-width:var(--vt-reading);margin:0 auto}.vt-prose p{margin:0 0 1.1em}.vt-prose h2{margin:2.2em 0 .7em}.vt-prose h3{margin:1.7em 0 .55em;font-size:1.15rem}.vt-prose ul,.vt-prose ol{padding-left:1.3em}.vt-callout{border-left:4px solid var(--vt-blue);background:var(--vt-blue-soft);padding:18px 20px;border-radius:0 14px 14px 0;margin:24px 0}.vt-callout strong{display:block;margin-bottom:4px}.vt-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.vt-fact{background:#fff;border:1px solid var(--vt-line);border-radius:14px;padding:14px}.vt-fact span{font-size:.76rem;color:var(--vt-muted);display:block}.vt-fact strong{display:block;margin-top:4px}.vt-list-clean{list-style:none;padding:0!important;margin:0!important}.vt-list-clean li{padding:13px 0;border-bottom:1px solid var(--vt-line)}.vt-list-clean li:last-child{border-bottom:0}.vt-list-clean a{font-weight:680}.vt-article-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.vt-meta-pill{font-size:.78rem;color:#49667c;background:#fff;border:1px solid var(--vt-line);border-radius:999px;padding:6px 9px}.vt-note{font-size:.88rem;color:var(--vt-muted)}.vt-footer{background:#0f2638;color:#d6e2ea;margin-top:64px}.vt-footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px;padding:42px 0}.vt-footer h2,.vt-footer h3{color:#fff;margin-top:0;font-size:1rem}.vt-footer a{color:#e7f4fb}.vt-footer p{margin:.45em 0}.vt-footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0 22px;color:#9fb3c2;font-size:.8rem}.vt-footer-links{display:flex;gap:12px;flex-wrap:wrap}.vt-divider{height:1px;background:var(--vt-line);margin:28px 0}.vt-source{font-size:.85rem;color:var(--vt-muted);border:1px solid var(--vt-line);background:#fff;border-radius:14px;padding:14px 16px}.vt-source a{font-weight:650}.vt-badge-ok{color:var(--vt-green);font-weight:650}.vt-two-col{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.7fr);gap:28px;align-items:start}.vt-aside{position:sticky;top:94px}.vt-aside .vt-card{grid-column:auto}.vt-index{counter-reset:item}.vt-index li{counter-increment:item;list-style:none;position:relative;padding-left:34px}.vt-index li:before{content:counter(item);position:absolute;left:0;top:.1em;width:23px;height:23px;border-radius:7px;background:var(--vt-blue-soft);color:var(--vt-blue-dark);display:grid;place-items:center;font-size:.72rem;font-weight:650}.vt-logo-strip{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.vt-logo-chip{background:#fff;border:1px solid var(--vt-line);border-radius:999px;padding:7px 10px;font-size:.8rem;color:#50697d}.vt-author-card{display:flex;gap:16px;align-items:flex-start}.vt-author-avatar{flex:0 0 54px;width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,var(--vt-blue),#0b8bd2);color:#fff;display:grid;place-items:center;font-weight:650}.vt-author-card h3{margin:0 0 4px}.vt-author-card p{font-size:.9rem}.vt-timeline{border-left:2px solid var(--vt-line);padding-left:22px}.vt-timeline-item{position:relative;margin:0 0 26px}.vt-timeline-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--vt-blue);left:-28px;top:.35em;box-shadow:0 0 0 5px #eef6fb}.vt-timeline-item h3{margin:0 0 5px}.vt-timeline-item p{margin:0;color:var(--vt-muted)}
@media(max-width:920px){.vt-nav{display:none}.vt-trustbar{grid-template-columns:repeat(2,1fr)}.vt-card,.vt-card.wide{grid-column:span 6}.vt-two-col{grid-template-columns:1fr}.vt-aside{position:static}.vt-footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.vt-wrap{width:min(calc(100% - 22px),var(--vt-wrap))}.vt-topbar .vt-wrap{display:block}.vt-header-inner{min-height:64px}.vt-brand-copy span{display:none}.vt-main{padding-top:28px}.vt-hero{padding:26px 20px;border-radius:22px}.vt-hero h1{font-size:2.25rem}.vt-trustbar{grid-template-columns:1fr 1fr}.vt-card,.vt-card.wide{grid-column:1/-1}.vt-section{padding-top:38px}.vt-section-head{display:block}.vt-facts{grid-template-columns:1fr}.vt-footer-grid{grid-template-columns:1fr}.vt-actions .vt-btn{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.vt-btn:hover{transform:none}}