:root { --accent: #b45309; --ink: #16181d; --muted: #5b6270; --line: #e6e8ec; --bg: #ffffff; --soft: #f6f7f9; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 24px; }
header { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; border-bottom: 1px solid var(--line); }
.logo { font-weight: 700; letter-spacing: -.01em; font-size: 20px; }
.logo span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 22px; font-size: 15px; }
nav a:hover { color: var(--ink); }
.hero { padding: 84px 0 64px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.12; letter-spacing: -.02em; margin: 0 0 18px; max-width: 16ch; }
.hero p { color: var(--muted); max-width: 56ch; margin: 0 0 28px; }
.btn { display: inline-block; background: var(--accent); color: #fff; padding: 12px 22px; border-radius: 8px; text-decoration: none; font-weight: 600; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
h2 { font-size: 26px; letter-spacing: -.01em; margin: 0 0 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card { background: var(--soft); border-radius: 12px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.v1 .hero { text-align: center; } .v1 .hero h1, .v1 .hero p { margin-left: auto; margin-right: auto; }
.v2 .hero { border-left: 4px solid var(--accent); padding-left: 28px; margin-top: 48px; }
.v2 .card { background: none; border: 1px solid var(--line); }
footer { padding: 32px 0 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }