:root{
  --bg:#ffffff; --fg:#14161a; --muted:#6b7280; --line:#e8eaee; --soft:#f6f7f9;
  --acc:#4f46e5; --radius:14px; --wrap:1080px;
  --shadow:0 1px 2px rgba(16,24,40,.06),0 8px 24px -12px rgba(16,24,40,.18);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;color:var(--fg);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--acc)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:800px}
.muted{color:var(--muted)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--acc);color:#fff;padding:8px 12px;border-radius:8px;z-index:99}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px;flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;letter-spacing:-.02em}
.logo .dot{color:var(--acc)}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:8px 12px;border-radius:999px;font-size:14px;color:var(--muted);font-weight:500}
.nav a:hover{background:var(--soft);color:var(--fg)}

.hero{background:linear-gradient(180deg,#eef0ff 0%,rgba(238,240,255,0) 100%);border-bottom:1px solid var(--line)}
.hero-inner{padding:56px 20px 40px;text-align:center}
.kicker{text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:700;color:var(--acc);margin:0 0 10px}
.hero h1{font-size:clamp(30px,5vw,46px);margin:0 0 10px;letter-spacing:-.03em}
.lede{color:var(--muted);font-size:17px;max-width:640px;margin:0 auto}

.section{margin-top:44px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.section-head h2{font-size:22px;margin:0;letter-spacing:-.02em}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{display:flex;flex-direction:column;gap:8px;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card h3{margin:0;font-size:17px;line-height:1.35;letter-spacing:-.01em}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .meta{font-size:12.5px;color:var(--muted);margin-top:auto}
.card-mini{padding:16px 18px}

.badge{display:inline-flex;align-self:flex-start;background:var(--soft);border:1px solid var(--line);color:var(--acc);font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}

.featured{display:block;margin-top:28px;border:1px solid var(--line);border-radius:18px;padding:28px;background:linear-gradient(135deg,#f7f8ff,#fff 55%);transition:transform .15s ease,box-shadow .15s ease}
.featured:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.featured h2{margin:10px 0 8px;font-size:26px;letter-spacing:-.02em;line-height:1.25}
.featured p{color:var(--muted);margin:0 0 10px;max-width:760px}
.featured .meta{font-size:13px;color:var(--muted)}

.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:13.5px;font-weight:500;color:var(--muted);display:inline-block}
.chip:hover{border-color:var(--acc);color:var(--acc)}

.crumbs{font-size:13px;color:var(--muted);margin:22px 0 8px;display:flex;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--acc)}
.page-head{margin:6px 0 22px}
.page-head h1{font-size:clamp(26px,4vw,38px);margin:0 0 6px;letter-spacing:-.03em}

.post{max-width:760px;margin:0 auto}
.post-head{margin:18px 0 8px}
.post-head h1{font-size:clamp(28px,4.5vw,42px);line-height:1.15;letter-spacing:-.03em;margin:12px 0 10px}
.post-head .meta{color:var(--muted);font-size:14px}
.post-body{margin-top:26px;font-size:17px}
.post-body h2{font-size:24px;margin:34px 0 10px;letter-spacing:-.02em}
.post-body h3{font-size:19px;margin:26px 0 8px}
.post-body p{margin:0 0 16px}
.post-body img{border-radius:12px;margin:8px 0}
.post-body blockquote{border-left:3px solid var(--acc);margin:18px 0;padding:10px 18px;color:var(--muted);background:var(--soft);border-radius:0 12px 12px 0}
.post-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.post-body th,.post-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.post-body th{background:var(--soft)}
.post-body code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:.9em}
.post-body a{border-bottom:1px solid rgba(79,70,229,.35)}
.post-body a:hover{border-bottom-color:var(--acc)}
.post-body a[rel~="sponsored"]{border-bottom-style:dashed}

.related{margin-top:44px;border-top:1px solid var(--line);padding-top:24px}
.related h2{font-size:20px;margin:0 0 14px}
.disclaimer{margin-top:36px;font-size:13px;color:var(--muted);background:var(--soft);border:1px dashed var(--line);border-radius:12px;padding:14px 16px}

.site-footer{margin-top:64px;background:#101218;color:#c9cedb}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;padding:44px 20px 10px}
.footer-brand{font-weight:800;font-size:19px;color:#fff;margin-bottom:8px}
.footer-title{font-weight:700;color:#fff;margin-bottom:10px;font-size:14px}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.footer-links a,.site-footer a{color:#c9cedb;font-size:14px}
.footer-links a:hover,.site-footer a:hover{color:#fff}
.site-footer .muted{color:#8a92a6}
.footer-bottom{border-top:1px solid #232734;padding:16px 20px 26px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.site-footer .disclosure{font-size:12.5px;color:#8a92a6;max-width:640px;margin:0}

.center{text-align:center;padding:80px 0}
.center h1{font-size:64px;margin:0 0 8px;letter-spacing:-.04em}

@media(max-width:720px){
  .footer-grid{grid-template-columns:1fr 1fr;padding-top:34px}
  .hero-inner{padding:40px 20px 30px}
  .featured{padding:20px}
}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}