:root {
  --bg: #F6F8FC; --card: #FFFFFF; --text: #0B1B3F; --text-2: #4A5878; --line: #E3E8F2;
  --brand: #0A6CFF; --brand-2: #2BB5FF; --link: #0A5BD6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #070F24; --card: #0F1A36; --text: #EEF3FF; --text-2: #A9B6D3; --line: #22305A; --link: #6FA8FF; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--link); text-underline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
header.site { display: flex; align-items: center; gap: 10px; padding: 8px 0 24px; }
header.site a { color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -0.2px; }
.mark { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); display: inline-grid; place-items: center; }
.mark svg { width: 16px; height: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px 20px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.4px; }
h2 { font-size: 20px; margin: 28px 0 8px; }
p, li { color: var(--text-2); }
.lead { font-size: 19px; color: var(--text); }
.meta { font-size: 14px; color: var(--text-2); margin-bottom: 16px; }
.summary { background: linear-gradient(135deg, rgba(10,108,255,.10), rgba(43,181,255,.10)); border-radius: 14px; padding: 16px 18px; margin: 16px 0 8px; }
.summary li { color: var(--text); }
footer { margin-top: 32px; font-size: 14px; color: var(--text-2); display: flex; flex-wrap: wrap; gap: 16px; }
.hero { text-align: center; padding: 40px 8px 24px; }
.hero .mark { width: 72px; height: 72px; border-radius: 18px; }
.hero .mark svg { width: 40px; height: 40px; }
.hero h1 { font-size: 40px; margin-top: 18px; }
.badge { display: inline-block; margin-top: 18px; padding: 10px 18px; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 600; }
.logo { display: block; border-radius: 22.5%; }
.hero .hero-logo { margin: 0 auto; box-shadow: 0 12px 32px rgba(10,108,255,.28); }