:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1d2433;
  --muted: #5b6577;
  --accent: #c8102e;
  --line: #e3e7ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10141b;
    --card: #171c25;
    --text: #e6e9ef;
    --muted: #9aa3b2;
    --accent: #ff5a6e;
    --line: #2a3140;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background:
    linear-gradient(90deg, rgba(3, 14, 28, 0.1), rgba(3, 14, 28, 0.02) 48%, rgba(3, 14, 28, 0.06)),
    url("/account-access-background.png") center / cover no-repeat,
    #030e1c;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(28px, 6vh, 72px) clamp(22px, 6vw, 120px);
}
main {
  width: 100%;
  max-width: 540px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 36px 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}
@media (max-width: 900px) {
  body {
    justify-content: center;
    padding: 22px 16px;
    background:
      linear-gradient(180deg, rgba(3, 14, 28, 0.72), rgba(3, 14, 28, 0.42)),
      url("/account-access-background.png") 60% center / cover no-repeat,
      #030e1c;
  }
}
.brand { font-size: 14px; letter-spacing: .12em; color: var(--muted); margin: 0 0 12px; }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 8px; }
.time { color: var(--accent); white-space: nowrap; }
.lead { font-size: 18px; margin: 0 0 28px; color: var(--muted); }
h2 { font-size: 16px; margin: 0 0 10px; padding-top: 22px; border-top: 1px solid var(--line); }
ul { margin: 0; padding-left: 1.2em; }
li { margin: 6px 0; font-size: 16px; }
strong { font-weight: 600; }
.contact { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; font-size: 16px; }
.contact dt { color: var(--muted); white-space: nowrap; }
.contact dd { margin: 0; overflow-wrap: anywhere; }
.contact a { color: inherit; text-decoration: none; border-bottom: 1px dashed var(--muted); white-space: nowrap; }
ul + h2 { margin-top: 24px; }
@media (max-width: 480px) {
  main { padding: 28px 20px; }
  h1 { font-size: 22px; }
  .lead { font-size: 16px; }
  li { font-size: 15px; }
}