:root {
  --bg: #fbfbfd;
  --panel: #ffffff;
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #a1a1a6;
  --line: #e5e5ea;
  --accent: #4b6bfb;
  --accent-soft: #eef1ff;
  --danger: #d9483f;
  --ok: #2e9e5b;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.7 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans SC",
        "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 顶栏 ---------- */
.topbar {
  height: 56px;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 600; letter-spacing: .2px; }
.brand span { color: var(--ink-3); font-weight: 400; margin-left: 8px; font-size: 13px; }
.nav { display: flex; gap: 22px; }
.nav a { color: var(--ink-2); font-size: 14px; }
.nav a.on { color: var(--ink); font-weight: 500; }
.spacer { flex: 1; }
.who { font-size: 13px; color: var(--ink-2); }

/* ---------- 布局 ---------- */
.wrap { max-width: 1040px; margin: 0 auto; padding: 40px 28px 80px; }
.wrap.narrow { max-width: 400px; padding-top: 88px; }

h1 { font-size: 26px; font-weight: 600; margin: 0 0 8px; letter-spacing: -.3px; }
h2 { font-size: 17px; font-weight: 600; margin: 0 0 16px; }
.sub { color: var(--ink-2); font-size: 14px; margin: 0 0 32px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

/* ---------- 表单 ---------- */
label { display: block; font-size: 13px; color: var(--ink-2); margin: 0 0 6px; }
input[type=text], input[type=password], input[type=search] {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  transition: border-color .18s, box-shadow .18s;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field { margin-bottom: 18px; }

button {
  height: 42px;
  padding: 0 20px;
  font-size: 15px;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity .18s, transform .1s;
}
button:hover { opacity: .9; }
button:active { transform: scale(.985); }
button[disabled] { opacity: .45; cursor: default; }
button.ghost { background: transparent; color: var(--ink-2); border: 1px solid var(--line); }
button.block { width: 100%; }

/* ---------- 表格 ---------- */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: .4px;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0 12px 10px;
  border-bottom: 1px solid var(--line);
}
.table td { padding: 12px; border-bottom: 1px solid var(--line); }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr { transition: background .12s; }
.table tbody tr:hover { background: #fafafc; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }

/* ---------- 杂项 ---------- */
.msg {
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 18px;
  display: none;
}
.msg.err { display: block; background: #fdf0ef; color: var(--danger); }
.msg.ok  { display: block; background: #eef8f1; color: var(--ok); }

.toolbar { display: flex; gap: 10px; margin-bottom: 24px; }
.toolbar input { flex: 1; }

.pager { display: flex; align-items: center; gap: 14px; margin-top: 24px; font-size: 14px; color: var(--ink-2); }

.kv { display: grid; grid-template-columns: 110px 1fr; gap: 14px 20px; font-size: 14px; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; word-break: break-all; }

.tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent);
}
.tag.banned { background: #fdf0ef; color: var(--danger); }

.empty { padding: 48px 0; text-align: center; color: var(--ink-3); font-size: 14px; }

.foot { margin-top: 28px; font-size: 12px; color: var(--ink-3); text-align: center; }