:root{--ink:#0F172A;--text:#334155;--muted:#64748B;--line:#E2E8F0;--pen:#1F5EFF;--pen-600:#1748D6;--pen-soft:#EEF3FF;--soft-2:#D6E3FF;--hl:#FFE34D;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 16px 36px -14px rgba(31,94,255,.22);color-scheme:light;box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:#F4F7FF radial-gradient(900px 600px at 0% 0%,#D6E3FF 0,transparent 60%) no-repeat;color:var(--text);font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--pen-600)}
:focus-visible{outline:3px solid var(--pen);outline-offset:2px}
.in{max-width:1240px;margin:0 auto;padding:0 20px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 12px 10px 18px;margin-top:12px;border-radius:999px;background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.85);box-shadow:0 20px 44px -26px rgba(31,94,255,.4)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}
.links{display:flex;gap:28px;font-size:15px;font-weight:600}
.links a{color:var(--muted);text-decoration:none}.links a:hover{color:var(--ink)}
@media (max-width:760px){.links{display:none}}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 22px;border-radius:999px;background:var(--pen);color:#fff;font-weight:700;font-size:15px;text-decoration:none;box-shadow:0 12px 26px -12px rgba(31,94,255,.65)}
.btn:hover{background:var(--pen-600);color:#fff}
.hero{margin-top:20px;border-radius:32px;background:linear-gradient(140deg,rgba(255,255,255,.75),rgba(214,227,255,.6));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.9);box-shadow:0 30px 60px -36px rgba(31,94,255,.45);padding:clamp(40px,7vw,72px) 24px;text-align:center;color:var(--ink);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-30px;top:-30px;width:180px;height:180px;border-radius:30px;background:linear-gradient(140deg,rgba(127,166,255,.45),rgba(31,94,255,.25));transform:rotate(14deg)}
.hero .tag{display:inline-block;color:#1748D6;background:rgba(255,255,255,.7);border:1px solid #fff;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.03em}
.hero h1{margin:16px auto 10px;max-width:820px;font-size:clamp(32px,5vw,56px);line-height:1.05;letter-spacing:-.04em;font-weight:600;position:relative}
.hero p{margin:0 auto;max-width:640px;color:#475569;position:relative;font-size:clamp(16px,2vw,18px)}
.article{max-width:720px;margin:0 auto;padding:48px 20px 20px}
.article h2{color:var(--ink);font-size:clamp(22px,3vw,28px);line-height:1.25;letter-spacing:-.015em;margin:40px 0 10px}
.article h3{color:var(--ink);font-size:19px;margin:28px 0 8px}
.article p{margin:0 0 16px}
.article ul,.article ol{margin:0 0 18px;padding-left:22px}.article li{margin:0 0 8px}
.article strong{color:var(--ink)}
.article mark{background:var(--hl);color:var(--ink);padding:0 3px;border-radius:3px;font-weight:700}
.box{background:rgba(255,255,255,.7);border:1px solid #fff;box-shadow:0 16px 36px -24px rgba(31,94,255,.35);border-radius:18px;padding:18px 20px;margin:20px 0}
.box.ba{display:grid;gap:12px}
.box .lb{font-size:12px;font-weight:800;letter-spacing:.05em;color:var(--muted)}
.box .lb.b{color:var(--pen-600)}
.cta{max-width:1240px;margin:56px auto 0;padding:0 20px}
.cta > div{background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid #fff;box-shadow:0 30px 60px -36px rgba(31,94,255,.45);border-radius:28px;padding:clamp(28px,5vw,56px);display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.cta h2{margin:0;color:var(--ink);font-size:clamp(24px,3.4vw,36px);line-height:1.15;letter-spacing:-.02em;max-width:620px}
.cta h2 span{color:var(--pen)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:22px;padding:40px 0 0}
.card{background:rgba(255,255,255,.62);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.9);border-radius:22px;padding:12px;box-shadow:var(--shadow);text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .2s}
.card:hover{transform:translateY(-3px)}
@media (prefers-reduced-motion:reduce){.card,.card:hover{transition:none;transform:none}}
.card .th{height:140px;border-radius:16px;background:linear-gradient(160deg,var(--pen-soft),var(--soft-2));position:relative}
.card .th span{position:absolute;left:18px;top:24px;background:#fff;border-radius:12px;padding:8px 14px;font-weight:800;color:var(--ink);box-shadow:0 10px 24px -12px rgba(31,94,255,.45)}
.card h3{margin:14px 8px 6px;font-size:18px;line-height:1.35;color:var(--ink)}
.card p{margin:0 8px 12px;font-size:15px;color:var(--muted);line-height:1.55}
.card em{margin:auto 8px 6px;font-style:normal;font-weight:700;font-size:14px;color:var(--pen-600)}
.foot{display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between;padding:56px 0 40px;font-size:14px;color:var(--muted)}
.foot a{color:var(--muted);text-decoration:none}.foot a:hover{color:var(--ink)}
.foot .cols{display:flex;gap:48px;flex-wrap:wrap}.foot .cols div{display:flex;flex-direction:column;gap:10px}
.foot strong{color:var(--ink)}
.crumb{font-size:14px;color:var(--muted);margin-bottom:8px}.crumb a{color:var(--muted)}
.meta{font-size:14px;color:var(--muted)}