:root {
  --graphite:#1F2937;
  --steel:#334E68;
  --teal:#2DD4BF;
  --concrete:#F3F4F6;
  --ink:#0B1220;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--graphite);
  background: #fff;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.header { position: sticky; top: 0; background:#fff; border-bottom:1px solid #E5E7EB; z-index:50; backdrop-filter:saturate(180%) blur(8px); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display:flex; align-items:center; gap:12px; font-weight:700; letter-spacing:.2px; }
.brand-logo { width:36px; height:36px; border-radius:10px; background:linear-gradient(135deg,var(--steel),var(--graphite)); display:grid; place-items:center; color:#fff; font-size:18px; }
.nav a { margin-left: 20px; font-weight: 500; }
.nav a.btn { margin-left: 28px; }
.btn { display:inline-block; padding:12px 18px; border-radius:10px; font-weight:600; border:1px solid var(--steel); color:#fff; background:var(--steel); transition:.2s ease; }
.btn:hover { filter: brightness(1.05); }
.btn.secondary { background:#fff; color:var(--steel); }
.hero { padding: 96px 0 64px; background:linear-gradient(180deg,#ffffff,#f8fafc); }
.hero h1 { font-size: 40px; line-height:1.1; margin:0 0 16px; color: var(--ink); }
.hero p { font-size: 18px; color:#4B5563; margin:0 0 28px; }
.grid { display:grid; gap:20px; }
.grid.s3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .grid.s3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid.s3 { grid-template-columns: 1fr; } }
.card { border:1px solid #E5E7EB; border-radius:14px; overflow:hidden; background:#fff; height:100%; display:flex; flex-direction:column; }
.card .in { padding:18px; }
.card h3 { margin:0 0 6px; font-size:18px; }
.badge { display:inline-block; background:var(--concrete); padding:6px 10px; border-radius:999px; font-size:12px; color:#374151; }
.ph { aspect-ratio: 4/3; background:linear-gradient(135deg,#e5e7eb,#f3f4f6); display:grid; place-items:center; color:#6B7280; font-weight:600; }
.price { font-weight:700; color:var(--ink); font-size:18px; }
footer { padding:36px 0; border-top:1px solid #E5E7EB; color:#6B7280; }
.foot { display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.section { padding: 60px 0; }
.section h2 { font-size:28px; margin:0 0 12px; color:var(--ink); }
.section p.sub { color:#6B7280; margin:0 0 28px; }
.table { width:100%; border-collapse: collapse; }
.table th, .table td { border:1px solid #E5E7EB; padding:10px; text-align:left; }
.table th { background: var(--steel); color:#fff; }
.notice { background:#ecfdf5; border:1px solid #a7f3d0; color:#065f46; padding:10px 12px; border-radius:10px; }