:root {
  --ink: #171633; --muted: #6b6a85; --line: #e7e6f2; --accent: #5b4bdb; --accent-soft: #eeecfb;
  --bg: #f5f5fb; --card: #ffffff; --warn-bg: #fff7e0; --warn-line: #f3dc9d; --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #ecebf7; --muted: #a09fba; --line: #2b2a44; --accent: #9d91ff; --accent-soft: #26244a;
          --bg: #121226; --card: #1b1b33; --warn-bg: #3a3120; --warn-line: #6a5a2a; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: -apple-system, "SF Pro Text", "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.65; font-size: 16px; }
body::before { content: ""; position: fixed; inset: 0 0 auto 0; height: 260px; z-index: -1;
  background: linear-gradient(135deg, #5b4bdb 0%, #8e5cf0 55%, #c56cf0 100%); opacity: 0.95; }
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 18px 56px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 6px 0 22px; color: #fff; }
header a { color: #fff; text-decoration: none; font-weight: 700; letter-spacing: 0.2px; }
header .brand { font-size: 17px; display: flex; align-items: center; gap: 10px; }
header .brand span { width: 30px; height: 30px; border-radius: 9px; background: rgba(255,255,255,0.22);
  display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
header nav a { font-size: 14px; font-weight: 600; opacity: 0.92; padding: 7px 12px; border-radius: 999px;
  background: rgba(255,255,255,0.16); }
header nav a:hover { background: rgba(255,255,255,0.28); }
main { background: var(--card); border-radius: var(--radius); padding: 32px 30px;
  box-shadow: 0 14px 40px rgba(31, 28, 80, 0.14); border: 1px solid var(--line); }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.4px; }
h2 { font-size: 20px; margin: 34px 0 10px; letter-spacing: -0.2px; }
h3 { font-size: 16px; margin: 22px 0 6px; }
h2:first-of-type { margin-top: 26px; }
p { margin: 0 0 14px; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 4px; }
.meta .pill { display: inline-block; background: var(--accent-soft); color: var(--accent); font-weight: 700;
  font-size: 12px; padding: 3px 10px; border-radius: 999px; margin-right: 8px; vertical-align: middle; }
a { color: var(--accent); text-decoration: none; }
main a:hover { text-decoration: underline; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 14px; margin: 14px 0 6px;
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
th, td { padding: 10px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
tr:last-child td { border-bottom: 0; }
th { background: var(--accent-soft); color: var(--ink); font-weight: 700; }
.notice { background: var(--warn-bg); border: 1px solid var(--warn-line); padding: 12px 14px; border-radius: 12px;
  font-size: 14px; margin-bottom: 18px; }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin: 16px 0; }
.card { display: block; border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; color: inherit;
  background: var(--bg); transition: transform .15s ease, box-shadow .15s ease; }
.card:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(31, 28, 80, 0.12); text-decoration: none; }
.card strong { display: block; color: var(--accent); margin-bottom: 4px; }
.card small { color: var(--muted); }
.history li { margin-bottom: 8px; }
footer { margin-top: 26px; color: var(--muted); font-size: 13px; text-align: center; }
@media (max-width: 520px) { main { padding: 22px 18px; } h1 { font-size: 26px; } table { font-size: 13px; } }