:root {
  --ink: #16202e;
  --muted: #5a6b7f;
  --line: #dfe5ec;
  --brand: #12388c;
  --bg-soft: #f5f7fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.65 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
header .wrap {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 17px;
  color: var(--ink);
}
.logo img { width: 28px; height: 28px; }
nav { margin-left: auto; display: flex; gap: 26px; font-size: 15px; }
nav a { color: var(--muted); }

.hero { padding: 56px 0 40px; }
.hero h1 {
  font-size: 38px;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.hero p.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 620px;
  margin: 0 0 28px;
}
.hero img, .shot {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
  display: block;
}

.cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 48px 0;
}
.cols h3 { margin: 0 0 8px; font-size: 17px; }
.cols p { margin: 0; color: var(--muted); font-size: 15px; }

section.band {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 44px 0;
}

h2 { font-size: 26px; margin: 0 0 18px; letter-spacing: -0.01em; }
h3 { font-size: 18px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  margin: 8px 0 0;
}
th, td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
th { font-weight: 600; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }

pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font: 13px/1.6 "SF Mono", Menlo, Consolas, monospace;
}
code { font: 13px/1.5 "SF Mono", Menlo, Consolas, monospace; }
p code, li code, td code { background: var(--bg-soft); padding: 1px 5px; border-radius: 4px; }

main { padding: 44px 0 56px; }
main p, main li { color: #2c3a4b; }

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 14px;
}
footer .wrap { display: flex; gap: 24px; flex-wrap: wrap; }
footer a { color: var(--muted); }

.notice {
  border-left: 3px solid var(--brand);
  padding: 4px 0 4px 16px;
  color: var(--muted);
  margin: 24px 0;
}

.center { text-align: center; padding: 90px 0; }
.center h1 { font-size: 72px; margin: 0; color: var(--brand); letter-spacing: -0.02em; }
.center p { color: var(--muted); font-size: 18px; }

@media (max-width: 760px) {
  .cols { grid-template-columns: 1fr; gap: 24px; padding: 32px 0; }
  .hero h1 { font-size: 29px; }
  nav { gap: 16px; font-size: 14px; }
  header .wrap { gap: 16px; }
}