:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #eef4fa;
  --text: #1f2a37;
  --muted: #5f6f82;
  --line: #d8e1ec;
  --accent: #2a6f97;
  --accent-dark: #174c68;
  --ok: #3d7f58;
  --warn: #a66a12;
  --shadow: 0 12px 28px rgba(29, 53, 87, 0.08);
  --radius: 18px;
  --max: 1180px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#f7fbff 0%,#f2f6fb 100%);color:var(--text);line-height:1.65}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(216,225,236,.8);z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.logo{font-size:24px;font-weight:700;color:var(--accent-dark)}
.logo span{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:2px}
.nav{display:flex;flex-wrap:wrap;gap:18px}
.nav a{font-size:14px;color:var(--text);font-weight:600}
.hero{padding:60px 0 38px}
.hero-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
.hero-card,.panel,.article-card,.note,.footer-card,.topic-card,.flow-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:34px}
.hero h1{font-size:42px;line-height:1.15;margin:0 0 18px}
.lead{font-size:18px;color:var(--muted);margin:0 0 22px}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#e7f1f8;color:var(--accent-dark);font-size:13px;font-weight:700;margin-bottom:16px}
.point{padding:14px 16px;background:var(--surface-soft);border-radius:14px;color:var(--text);font-size:14px}
.panel{padding:28px}
.panel h3,.section h2,.article-card h2{margin-top:0}
.section{padding:18px 0 30px}
.grid-3,.grid-2,.grid-4{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.topic-card,.flow-card{padding:22px}
.topic-card h3,.flow-card h3{margin:0 0 10px;font-size:20px}
.topic-card p,.flow-card p,.article-card p,.panel p,.footer-card p{margin:0;color:var(--muted)}
.article-card{padding:28px;margin-bottom:18px}
.article-card h2{font-size:28px}
.article-card h3{margin-bottom:8px;margin-top:24px}
.list{margin:14px 0 0;padding-left:20px}
.list li{margin:8px 0}
.note{padding:18px 20px;background:#fffaf0;border-color:#f1dfb7}
.note strong{color:#81540e}
.table-like{display:grid;gap:12px;margin-top:18px}
.row{display:grid;grid-template-columns:1fr 1.2fr;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.row div{padding:15px 16px;background:#fff}
.row div:first-child{background:var(--surface-soft);font-weight:700}
.callout{padding:18px 20px;border-radius:16px;background:#edf6fb;border:1px solid #cfe1ef;margin:22px 0}
.path-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.path-links a{display:inline-block;padding:10px 14px;border-radius:999px;background:#edf4f9;border:1px solid #d3e1ee;font-size:14px;font-weight:700}
.footer{padding:28px 0 42px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:18px}
.footer-card{padding:24px}
.small{font-size:14px;color:var(--muted)}
hr.sep{border:none;border-top:1px solid var(--line);margin:24px 0}
@media (max-width: 980px){
  .hero-wrap,.grid-3,.grid-4,.footer-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .row{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .container{width:min(var(--max),calc(100% - 24px))}
  .header-inner{align-items:flex-start;flex-direction:column}
  .hero{padding-top:34px}
  .hero-card{padding:24px}
  .hero h1{font-size:30px}
  .hero-points{grid-template-columns:1fr}
}