:root {
  --bg: #f5f7fa; --card: #fff; --ink: #1a2233; --muted: #697386;
  --brand: #2563eb; --line: #e3e8ef; --danger: #c0392b; --ok: #1a7f37;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.6;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.topbar { background: #10182a; padding: 14px 0; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { color: #fff; font-size: 20px; font-weight: 700; text-decoration: none; letter-spacing: .5px; }
.brand b { color: #5b9dff; }
.topbar nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.topbar nav a { color: #c6d2e6; text-decoration: none; font-size: 14px; }
.topbar nav a:hover { color: #fff; }
.inline { display: inline; }
.linklike { background: none; border: none; color: #c6d2e6; font-size: 14px; cursor: pointer; padding: 0; }
.linklike:hover { color: #fff; }
main.wrap { padding: 36px 20px 60px; min-height: calc(100vh - 140px); }
.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 { font-size: 40px; }
.hero h1 span { color: var(--brand); margin-left: 10px; }
.hero .sub { color: var(--muted); font-size: 17px; margin: 14px 0 26px; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 8px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  text-decoration: none; font-size: 15px; cursor: pointer;
}
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn:hover { opacity: .9; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; margin-top: 30px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.narrow { max-width: 480px; margin: 0 auto; }
.panel h2 { margin-bottom: 16px; font-size: 22px; }
.panel h3 { margin: 22px 0 10px; font-size: 16px; }
form label { display: block; margin-bottom: 14px; font-size: 14px; color: var(--muted); }
form input {
  display: block; width: 100%; margin-top: 6px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 8px; font-size: 15px;
}
form input:focus { outline: 2px solid #bcd3ff; border-color: var(--brand); }
.rowform { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin: 14px 0 22px; }
.rowform label { margin: 0; flex: 1; min-width: 130px; }
.alert {
  background: #fdecea; color: var(--danger); border: 1px solid #f5c6c0;
  border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px;
}
.notice {
  background: #e8f5ec; color: var(--ok); border: 1px solid #bfe3ca;
  border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; font-size: 14px;
}
.muted { color: var(--muted); font-size: 13px; margin-top: 14px; }
table.list, table.kv { width: 100%; border-collapse: collapse; margin: 10px 0 18px; font-size: 14px; }
table.list th, table.list td, table.kv th, table.kv td {
  border-bottom: 1px solid var(--line); padding: 9px 10px; text-align: left;
}
table.kv th { width: 140px; color: var(--muted); font-weight: 500; }
.mono { font-family: ui-monospace, Consolas, monospace; letter-spacing: .5px; }
.stats { display: flex; gap: 18px; flex-wrap: wrap; margin: 18px 0; }
.stat { flex: 1; min-width: 160px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.stat .num { font-size: 30px; font-weight: 700; color: var(--brand); }
.stat .lbl { color: var(--muted); font-size: 13px; }
.foot { border-top: 1px solid var(--line); padding: 18px 0; color: var(--muted); font-size: 13px; background: #fff; }