:root{
  --ink:#102033;
  --muted:#617083;
  --line:#e6ebf1;
  --bg:#f7f9fc;
  --card:#ffffff;
  --brand:#2563eb;
  --brand-dark:#1747b0;
  --accent:#14b8a6;
  --soft:#eef4ff;
  --max:1180px;
  --radius:18px;
}
*{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}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:20px;letter-spacing:-.6px}.site-logo{width:190px;height:auto;max-height:54px;object-fit:contain}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#22c55e);display:grid;place-items:center;color:#fff;font-weight:900}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:650;color:#42526a}
.nav-links a:hover{color:var(--brand)}
.nav-cta{background:var(--ink);color:#fff!important;padding:10px 15px;border-radius:11px}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 11px;font-size:18px}
.hero{padding:88px 0 68px;background:
 radial-gradient(circle at 85% 20%,rgba(37,99,235,.13),transparent 31%),
 radial-gradient(circle at 10% 40%,rgba(20,184,166,.10),transparent 30%),
 linear-gradient(180deg,#fbfdff,#f7f9fc)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border:1px solid #d9e4fb;background:#fff;border-radius:999px;color:#31558e;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
h1{font-size:clamp(42px,6vw,70px);line-height:1.03;letter-spacing:-2.7px;margin:18px 0 20px}
.hero p{font-size:19px;color:var(--muted);max-width:690px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 17px;border-radius:12px;font-weight:800;border:1px solid var(--line)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-secondary{background:#fff}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 20px 55px rgba(16,32,51,.10)}
.hero-card .top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.pill{font-size:12px;font-weight:800;padding:6px 9px;background:#eafbf7;color:#087f70;border-radius:999px}
.tool-row{display:flex;gap:13px;padding:15px 0;border-top:1px solid var(--line)}
.tool-icon{width:40px;height:40px;border-radius:11px;background:var(--soft);display:grid;place-items:center;font-weight:900;color:var(--brand)}
.tool-row strong{display:block;font-size:14px}.tool-row span{font-size:12px;color:var(--muted)}
.section{padding:72px 0}
.section.alt{background:var(--bg)}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}
.section-head h2{font-size:34px;letter-spacing:-1.3px;margin:0}
.section-head p{max-width:650px;color:var(--muted);margin:8px 0 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card:hover{box-shadow:0 12px 35px rgba(16,32,51,.08);transform:translateY(-2px);transition:.2s}
.card-icon{width:44px;height:44px;border-radius:13px;background:#eef4ff;color:var(--brand);display:grid;place-items:center;font-weight:900;margin-bottom:16px}
.card h3{margin:0 0 8px;font-size:19px}.card p{margin:0;color:var(--muted);font-size:14px}
.category-card{display:flex;flex-direction:column}.category-article{display:block;margin-top:18px;padding:16px;border:1px solid #dbe5f3;border-radius:14px;background:#f8fbff}.category-article-image{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;margin:0 0 14px}.category-article:hover{border-color:#b9cbed;background:#f4f8ff}.category-article-label{display:block;font-size:11px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--brand);margin-bottom:6px}.category-article strong{display:block;font-size:16px;line-height:1.35;margin-bottom:6px}.category-article-text{display:block;color:var(--muted);font-size:13px;line-height:1.55}.category-article-link{display:block;margin-top:10px;color:var(--brand);font-size:13px;font-weight:800}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.article-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-card .body{padding:19px}
.meta{font-size:12px;color:#718096;font-weight:700}.article-card h3{font-size:19px;line-height:1.3;margin:8px 0}.article-card p{color:var(--muted);font-size:14px;margin:0}
.newsletter{border-radius:25px;padding:38px;background:linear-gradient(135deg,#102033,#183e74);color:#fff;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
.newsletter p{color:#cbd7e6;margin:7px 0 0}
.newsletter form{display:flex;gap:8px}.newsletter input{min-width:270px;padding:13px;border:0;border-radius:11px}.newsletter button{border:0;background:#fff;color:var(--ink);font-weight:800;padding:13px 17px;border-radius:11px}
.site-footer{background:#0d1724;color:#b8c4d2;padding:50px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-title{color:#fff;font-weight:850;margin-bottom:12px}.footer-links{display:grid;gap:8px;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:18px;font-size:12px;display:flex;justify-content:space-between;gap:20px}
.page-hero{padding:65px 0 45px;background:var(--bg);border-bottom:1px solid var(--line)}
.page-hero h1{font-size:48px;margin:12px 0}.page-hero p{max-width:760px;color:var(--muted);font-size:18px}
.prose{max-width:800px;padding:60px 0}.prose h2{margin-top:42px;font-size:30px}.prose h3{margin-top:30px;font-size:21px}.prose p,.prose li{color:#405065}.prose ul{padding-left:22px}.notice{padding:18px 20px;background:#f2f7ff;border-left:4px solid var(--brand);border-radius:10px;margin:25px 0}
.article-wrap{padding:52px 0}.article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:50px;align-items:start}.article-title{font-size:clamp(38px,5vw,60px);line-height:1.08;letter-spacing:-2px;margin:12px 0}.article-intro{font-size:19px;color:var(--muted)}.article-feature{margin:28px 0;border-radius:18px;overflow:hidden}.article-content{font-size:17px}.toc{position:sticky;top:100px;border:1px solid var(--line);padding:18px;border-radius:16px}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;font-size:13px;color:var(--muted);padding:5px 0}
.badge{display:inline-block;background:#eef4ff;color:#2453a5;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800}
@media(max-width:900px){
 .hero-grid,.article-layout{grid-template-columns:1fr}.grid,.article-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.toc{position:static}
}
@media(max-width:680px){
 .container{width:min(var(--max),calc(100% - 28px))}
 .nav{height:66px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:10px}
 h1{letter-spacing:-1.8px}.hero{padding:60px 0}.hero p{font-size:17px}.grid,.article-grid,.footer-grid{grid-template-columns:1fr}.newsletter{grid-template-columns:1fr}.newsletter form{flex-direction:column}.newsletter input{min-width:0}.footer-bottom{flex-direction:column}
}