:root{
  --ink:#15243b; --ink-soft:#41506b; --line:#e3e8f0; --bg:#ffffff; --bg-soft:#f6f8fc;
  --sky:#1f6fd6; --sky-deep:#16539f; --sand:#d98a2b; --sand-deep:#b96f17;
  --shadow:0 1px 2px rgba(21,36,59,.06),0 8px 28px rgba(21,36,59,.08); --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--sky-deep);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.btn{display:inline-block;background:var(--sand);color:#fff;font-weight:700;padding:14px 24px;border-radius:999px;border:none;cursor:pointer;font-size:1rem;box-shadow:var(--shadow);transition:transform .12s,background .12s}
.btn:hover{background:var(--sand-deep);transform:translateY(-1px);text-decoration:none}
/* header */
header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;color:var(--ink)}
.brand .mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--sky),var(--sand));display:inline-block}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-weight:700;color:var(--ink)}
@media(max-width:680px){.nav-phone{display:none}}
/* article */
main{padding:42px 0 10px}
.post{max-width:720px;margin:0 auto}
.crumb{font-size:.86rem;color:var(--ink-soft);margin-bottom:18px}
.post h1{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.01em;line-height:1.18;margin:0 0 .6em}
.post h2{font-size:clamp(1.25rem,2.4vw,1.55rem);font-weight:800;margin:1.7em 0 .4em;letter-spacing:-.005em}
.post p{margin:0 0 1.1rem;font-size:1.08rem}
.post ul{margin:0 0 1.1rem;padding-left:1.2em}
.post li{margin:.35em 0;font-size:1.08rem}
.post .postcta{margin:1.8em 0 0;padding:22px 24px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r);font-size:1.12rem;font-weight:600}
.post .postcta a{font-weight:800}
/* cta band */
.ctaband{background:linear-gradient(135deg,#16539f,#1f6fd6);color:#fff;text-align:center;margin-top:48px;padding:50px 0}
.ctaband h2{font-size:1.7rem;margin:0 0 .3em}
.ctaband p{margin:0 auto 18px;max-width:46ch;color:#dbe8fb}
.ctaband .btn{background:#fff;color:var(--sky-deep)}
.ctaband .btn:hover{background:#eef4fc}
/* index grid */
.bloghero{background:linear-gradient(180deg,#eef4fc,#fff);border-bottom:1px solid var(--line);padding:48px 0 34px}
.bloghero h1{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;letter-spacing:-.01em;margin:0 0 .3em}
.bloghero p{font-size:1.12rem;color:var(--ink-soft);max-width:54ch;margin:0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:40px 0 10px}
@media(max-width:900px){.grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.grid{grid-template-columns:1fr}}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);transition:transform .12s,border-color .12s}
.card:hover{transform:translateY(-2px);border-color:var(--sky);text-decoration:none}
.card h3{margin:0 0 .4em;font-size:1.18rem;color:var(--ink);line-height:1.25}
.card p{margin:0;color:var(--ink-soft);font-size:.96rem}
.card .more{display:inline-block;margin-top:12px;color:var(--sky-deep);font-weight:700;font-size:.92rem}
/* footer */
footer{background:#0f1b2e;color:#aebbcf;font-size:.9rem;padding:38px 0;margin-top:10px}
footer a{color:#cdd9ea}
.legal{border-top:1px solid #22324a;padding-top:18px;margin-top:18px;font-size:.82rem;line-height:1.7;color:#8595ad}