:root{
  --ink:#10242b;--muted:#58717b;--line:#d8e9ed;--ice:#dff8fb;--aqua:#75d6e5;
  --aqua2:#28b7c9;--deep:#0d6773;--white:#fff;--soft:#f5fbfc;--warn:#fff7df;
  --radius:20px;--shadow:0 16px 44px rgba(16,36,43,.10);--max:1160px;
}
*{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(--ink);background:#fff;line-height:1.65}
img,svg{max-width:100%;height:auto}a{color:var(--deep);text-underline-offset:3px}
.skip{position:absolute;left:-999px;top:auto}.skip:focus{left:16px;top:12px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px}
.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}
.topbar{background:var(--ink);color:#fff;font-size:.86rem;text-align:center;padding:8px 16px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(216,233,237,.9)}
.nav{display:flex;align-items:center;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:-.02em}
.brand-mark{width:34px;height:34px}
.navlinks{display:flex;align-items:center;gap:20px;margin-left:auto}.navlinks a{text-decoration:none;color:var(--ink);font-weight:650;font-size:.95rem}
.navlinks a:hover,.navlinks a:focus{color:var(--deep)}
.menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:12px;padding:9px 12px;font-weight:750}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;border:0;border-radius:999px;padding:13px 20px;font-weight:800;cursor:pointer;transition:.2s transform,.2s box-shadow}
.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--ink);color:#fff;box-shadow:0 8px 22px rgba(16,36,43,.16)}
.btn-secondary{background:var(--ice);color:var(--ink);border:1px solid #bde8ef}.btn-small{padding:9px 14px;font-size:.9rem}
.hero{background:radial-gradient(circle at 80% 15%,#c7f5fb 0,transparent 32%),linear-gradient(180deg,#f8feff 0,#effbfc 100%);padding:74px 0 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--deep);background:#e8fbfd;border:1px solid #c9edf2;border-radius:999px;padding:6px 10px;font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
h1,h2,h3{line-height:1.13;letter-spacing:-.035em;margin-top:0}h1{font-size:clamp(2.4rem,5vw,4.7rem);margin-bottom:18px}h2{font-size:clamp(1.75rem,3vw,2.65rem);margin-bottom:16px}h3{font-size:1.22rem}
.lede{font-size:1.16rem;color:var(--muted);max-width:760px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trustline{display:flex;flex-wrap:wrap;gap:16px;margin-top:24px;color:var(--muted);font-size:.9rem}.trustline span:before{content:"✓";color:var(--deep);font-weight:900;margin-right:6px}
.hero-art{background:#fff;border:1px solid var(--line);border-radius:28px;padding:26px;box-shadow:var(--shadow)}
.section{padding:66px 0}.section.soft{background:var(--soft)}.section-head{max-width:760px;margin-bottom:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;box-shadow:0 8px 24px rgba(16,36,43,.05)}
.card h3{margin-bottom:10px}.card p{color:var(--muted);margin-bottom:14px}.card a.title{color:var(--ink);text-decoration:none}.card a.title:hover{text-decoration:underline}
.card .kicker{color:var(--deep);font-weight:800;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
.product-card{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center;background:linear-gradient(135deg,#f6feff,#e5f9fc);border:1px solid #bfe8ee;border-radius:26px;padding:24px}
.product-card .price-note{font-size:.88rem;color:var(--muted)}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.badge{border-radius:999px;background:#fff;border:1px solid var(--line);padding:6px 9px;font-size:.8rem;font-weight:750}
.article-wrap{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:48px;align-items:start}
.article{padding:48px 0 72px}.article h1{font-size:clamp(2.2rem,4vw,3.65rem)}.article h2{margin-top:42px}.article h3{margin-top:28px}
.article p,.article li{font-size:1.03rem}.article .meta{color:var(--muted);font-size:.9rem;margin:10px 0 26px}
.article blockquote{margin:28px 0;padding:16px 20px;background:var(--soft);border-left:4px solid var(--aqua2);border-radius:0 14px 14px 0}
.article .note{background:var(--warn);border:1px solid #efdfae;border-radius:14px;padding:16px 18px;margin:24px 0}
.article .answer{font-size:1.13rem;background:var(--ice);border-radius:16px;padding:18px 20px;margin:18px 0 28px}
.breadcrumbs{font-size:.86rem;color:var(--muted);padding-top:26px}.breadcrumbs a{color:var(--muted)}
.toc{position:sticky;top:100px;border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;text-decoration:none;padding:6px 0;color:var(--muted);font-size:.92rem}.toc a:hover{color:var(--deep)}
.compare{width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden}.compare th,.compare td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.compare th{background:var(--soft)}.compare tr:last-child td{border-bottom:0}
.cta-box{border-radius:24px;padding:28px;background:linear-gradient(135deg,#d8f7fb,#eefcfd);border:1px solid #b8e6ec;margin:34px 0}.cta-box h2,.cta-box h3{margin-bottom:8px}.cta-box p{color:#395861}
.refs{font-size:.88rem;color:var(--muted)}.refs li{margin:7px 0}
.footer{background:#0d2026;color:#d6e5e9;padding:48px 0 28px}.footer a{color:#e8fbfd}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}.footer small{color:#9fb8bf}
.disclosure{font-size:.86rem;color:var(--muted);border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;margin:18px 0}
.popup{position:fixed;right:18px;bottom:18px;z-index:90;width:min(420px,calc(100% - 36px));background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 22px 70px rgba(16,36,43,.22);padding:22px;transform:translateY(140%);opacity:0;transition:.35s ease}
.popup.show{transform:translateY(0);opacity:1}.popup-close{position:absolute;right:12px;top:10px;background:none;border:0;font-size:1.4rem;cursor:pointer}.popup .row{display:grid;grid-template-columns:86px 1fr;gap:16px;align-items:center}
.popup h2{font-size:1.3rem;margin:0 0 6px}.popup p{font-size:.9rem;color:var(--muted);margin:0 0 12px}
.pill-nav{display:flex;gap:10px;overflow:auto;padding-bottom:4px}.pill-nav a{white-space:nowrap;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:var(--ink);font-weight:700;font-size:.88rem}
.faq details{border-top:1px solid var(--line);padding:15px 0}.faq summary{font-weight:800;cursor:pointer}.faq details p{color:var(--muted)}
@media(max-width:900px){
 .hero-grid,.article-wrap,.footer-grid{grid-template-columns:1fr}.hero-art{max-width:620px}.toc{position:relative;top:auto}.grid-3{grid-template-columns:1fr 1fr}
 .navlinks{display:none;position:absolute;left:18px;right:18px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .navlinks.open{display:flex}.menu-btn{display:inline-block}.nav .btn-small{display:none}
}
@media(max-width:640px){
 .wrap{width:min(100% - 26px,var(--max))}.hero{padding:50px 0}.grid-3,.grid-2,.product-card{grid-template-columns:1fr}.product-card img{max-width:180px;margin:auto}
 .section{padding:48px 0}.popup{left:12px;right:12px;bottom:12px;width:auto}.popup .row{grid-template-columns:70px 1fr}
 h1{font-size:2.55rem}.article{padding-top:26px}.article h1{font-size:2.35rem}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}