:root{--ac:#1F4FFF;--ink:#0B1020;--sub:#4B5563;--line:#E5E7EB;--tint:#F3F5FB;--bd:#E3E7F0}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
p{margin:0}
.hd{font-family:"Space Grotesk",Inter,system-ui,sans-serif;letter-spacing:-0.02em}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
.cw{max-width:none;margin:0 auto;padding-left:clamp(16px,4vw,64px);padding-right:clamp(16px,4vw,64px)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px 12px;z-index:9}
/* header */
.site-h{border-bottom:1px solid var(--line);background:#fff}
.site-h .cw{display:flex;align-items:center;justify-content:space-between;gap:16px;height:76px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-i{width:36px;height:36px;border-radius:10px;background:var(--ac);color:#fff;display:inline-flex;align-items:center;justify-content:center}
.brand-t{font-size:19px;font-weight:700}
.cnav{display:flex;gap:22px;align-items:center;font-size:15px;font-weight:500}
.cnav a{text-decoration:none;color:#374151}
.cnav a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;background:var(--ink);color:#fff;font-weight:600;font-size:14px;text-decoration:none;transition:filter .2s}
.btn:hover{filter:brightness(1.15)}
.btn-ac{background:var(--ac);min-height:52px;padding:0 24px;border-radius:14px;font-size:16px;font-weight:700}
.btn-ol{background:#fff;color:var(--ink);border:1px solid #C9CFDD}
/* breadcrumb */
.bc{padding-top:20px;padding-bottom:4px;font-size:14px;color:var(--sub)}
.bc ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.bc li+li::before{content:"\203A";margin-right:8px;color:#9CA3AF}
.bc a{text-decoration:none}
.bc a:hover{text-decoration:underline}
.bc [aria-current]{color:var(--ink);font-weight:600}
/* hero */
.hero{background:var(--tint);margin-top:16px}
.hero .cw{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:48px;align-items:start;padding-top:64px;padding-bottom:64px}
.eyebrow{font-size:13px;letter-spacing:.08em;color:var(--ac);text-transform:uppercase}
h1{font-size:52px;line-height:1.06;margin:14px 0 16px;font-weight:700}
.lead{font-size:19px;color:var(--sub);margin-bottom:20px}
.intro p{font-size:16.5px;color:#1F2937;margin-bottom:14px}
.side{border-radius:26px;background:var(--ink);color:#fff;padding:36px;display:flex;flex-direction:column;gap:18px}
.side .eyebrow{color:#A9B4C8}
.side p{font-size:17px;line-height:1.65;color:#E5E9F2}
.side a{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:#7C98FF}
.side a:hover{text-decoration-color:#fff}
.side .btn{align-self:flex-start}
/* sections */
.sec{padding-top:72px}
.sec h2{font-size:36px;line-height:1.1;margin:10px 0 28px;font-weight:700}
.sec-note{font-size:16px;color:var(--sub);margin-bottom:28px;max-width:640px}
.pgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;margin:0;padding:0}
.pcard{background:#fff;border:1px solid var(--bd);border-radius:22px;padding:16px;display:flex;flex-direction:column;gap:12px;height:100%}
.pimg{background:#fff;border-radius:14px;aspect-ratio:1/1;overflow:hidden}
.pimg img{width:100%;height:100%;object-fit:contain}
.pname{font-size:15.5px;line-height:1.35;overflow-wrap:anywhere}
.pname a{text-decoration:none}
.pname a:hover{text-decoration:underline}
.price{font-size:15px;color:var(--ac);font-weight:600;margin-top:auto}
.price.na{color:var(--sub);font-weight:500}
.cgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.ccard{display:flex;flex-direction:column;gap:6px;padding:24px;border-radius:22px;background:var(--tint);border:1px solid var(--bd);text-decoration:none;transition:border-color .2s}
.ccard:hover{border-color:var(--ac)}
.ccard .n{font-size:20px;font-weight:700}
.ccard .d{font-size:14.5px;color:var(--sub);line-height:1.5}
.all{border-radius:26px;border:1px solid var(--bd);padding:32px;display:grid;gap:24px}
.gl{font-size:12px;letter-spacing:.08em;color:var(--sub);text-transform:uppercase;margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid #DCE1EC;color:#1F2937;font-size:14px;font-weight:600;text-decoration:none;transition:border-color .2s}
a.chip:hover{border-color:var(--ac)}
.chip[aria-current]{background:var(--ac);border-color:var(--ac);color:#fff}
.homebar{padding-top:48px;padding-bottom:88px;display:flex;gap:12px;flex-wrap:wrap}
/* footer */
.site-f{border-top:1px solid var(--line);background:var(--tint)}
.site-f .cw{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-top:44px;padding-bottom:44px;font-size:14px;line-height:1.7;color:var(--sub)}
.site-f .fb{font-size:18px;font-weight:700;color:var(--ink);display:block;margin-bottom:6px}
.site-f nav{display:flex;gap:24px;flex-wrap:wrap;color:var(--ink);font-weight:500}
a:focus-visible{outline:3px solid var(--ac);outline-offset:2px;border-radius:6px}
@media (max-width:1100px){
  h1{font-size:46px}
  .pgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .cw{padding-left:32px;padding-right:32px}
  .cnav{display:none}
  .hero .cw{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:44px;padding-bottom:48px}
  h1{font-size:40px}
  .pgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sec{padding-top:56px}
  .sec h2{font-size:30px}
}
@media (max-width:560px){
  .cw{padding-left:16px;padding-right:16px}
  .site-h .cw{height:64px}
  .btn{padding:0 14px;font-size:13px}
  h1{font-size:32px}
  .lead{font-size:17px}
  .side{padding:24px}
  .pgrid{gap:12px}
  .pcard{padding:10px;border-radius:16px}
  .pname{font-size:14px}
  .cgrid{grid-template-columns:minmax(0,1fr)}
  .all{padding:20px}
  .sec h2{font-size:26px}
  .homebar .btn{width:100%;justify-content:center}
}
@media (max-width:560px){
  .brand-t{font-size:16px}
  .site-h .btn svg{display:none}
  .site-h .btn{padding:0 12px}
}