:root {
  --bg: #0d0b10;
  --panel: #17141b;
  --line: rgba(241, 235, 227, 0.1);
  --text: #f1ebe3;
  --muted: rgba(241, 235, 227, 0.66);
  --faint: rgba(241, 235, 227, 0.42);
  --accent: #ffb05c;
  --ink: #24160a;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

header.top { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 17px; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
header.top nav { display: flex; gap: 20px; font-size: 14.5px; }
header.top nav a { color: var(--muted); }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; padding: 48px 0 72px; }
.hero h1 { font-size: clamp(36px, 6vw, 56px); line-height: 1.15; margin: 0 0 18px; letter-spacing: -0.01em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead { font-size: 18.5px; color: var(--muted); margin: 0 0 28px; max-width: 30em; }
.cta { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--ink); font-weight: 650; padding: 13px 22px; border-radius: 999px; }
.cta:hover { text-decoration: none; filter: brightness(1.05); }
.cta-note { display: block; margin-top: 12px; font-size: 13.5px; color: var(--faint); }
.phone {
  justify-self: center;
  width: min(290px, 72vw);
  border-radius: 44px;
  padding: 10px;
  background: #050407;
  box-shadow: 0 0 0 1px var(--line), 0 40px 120px rgba(255, 150, 60, 0.18);
}
.phone img { display: block; width: 100%; height: auto; border-radius: 34px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-bottom: 72px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .tag { display: inline-block; font-size: 12px; font-weight: 650; color: var(--ink); background: var(--accent); border-radius: 6px; padding: 1px 7px; margin-left: 6px; vertical-align: 2px; }

.doc { max-width: 720px; padding: 24px 0 72px; }
.doc h1 { font-size: 32px; line-height: 1.25; margin: 8px 0 6px; }
.doc .date { color: var(--faint); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 19px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--muted); }
.doc ul { padding-left: 1.2em; }
.doc strong { color: var(--text); }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--faint); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer nav { display: flex; gap: 18px; }
footer a { color: var(--faint); }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; gap: 36px; padding: 24px 0 56px; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .features { grid-template-columns: 1fr; }
  header.top nav { gap: 14px; }
}