:root {
  --bg: #f5f5f7;
  --card: #ffffff;
  --accent: #c8892b;
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #a1a1a6;
  --border: #e5e5ea;
  --danger: #d03050;
  --green: #1a7f37;
  --orange: #c07a1c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; cursor: pointer; }

/* 登录 */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--card);
  border-radius: 20px;
  padding: 48px 40px;
  width: 360px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  text-align: center;
}
.login-title { font-size: 22px; font-weight: 700; }
.login-sub { color: var(--ink-2); font-size: 13px; margin-top: 6px; margin-bottom: 32px; }
.login-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  outline: none;
  background: var(--bg);
}
.login-input:focus { border-color: var(--accent); background: #fff; }
.login-btn {
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
}
.login-btn:hover { opacity: 0.9; }
.login-err { color: var(--danger); font-size: 13px; margin-top: 12px; min-height: 18px; }

/* 布局 */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: #1d1d1f;
  color: #fff;
  padding: 28px 16px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  flex-shrink: 0;
}
.logo { font-size: 16px; font-weight: 700; padding: 0 12px 24px; }
.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item { padding: 11px 12px; border-radius: 8px; color: #d2d2d7; cursor: pointer; font-size: 14px; }
.nav-item:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.nav-item.active { background: var(--accent); color: #fff; }
.logout-btn {
  margin-top: 16px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #d2d2d7;
  border-radius: 8px;
  font-size: 13px;
}
.logout-btn:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }

.content { flex: 1; padding: 32px 36px; min-width: 0; }
.tab { display: none; }
.tab.active { display: block; }
.page-title { font-size: 24px; font-weight: 700; margin-bottom: 24px; }

/* 统计 */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.stat-card { background: var(--card); border-radius: 16px; padding: 28px 24px; }
.stat-value { font-size: 32px; font-weight: 700; }
.stat-label { color: var(--ink-2); font-size: 13px; margin-top: 6px; }

/* 表格 */
.table-wrap { background: var(--card); border-radius: 16px; overflow: hidden; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}
.table th { color: var(--ink-2); font-weight: 600; background: #fafafa; }
.table tr:last-child td { border-bottom: none; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, monospace; font-size: 12px; color: var(--ink-2); word-break: break-all; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: #eee; object-fit: cover; }
.content-cell { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 标签 */
.tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
.tag-green { color: var(--green); background: #e6f4ea; }
.tag-red { color: var(--danger); background: #fdeaea; }
.tag-orange { color: var(--orange); background: #fdf0dc; }

/* 按钮 */
.btn { border: 1px solid var(--border); background: #fff; color: var(--ink); border-radius: 8px; padding: 6px 14px; font-size: 13px; white-space: nowrap; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); color: var(--danger); }

/* 筛选 */
.filter-bar { display: flex; gap: 8px; margin-bottom: 16px; }
.filter-btn { border: 1px solid var(--border); background: #fff; border-radius: 999px; padding: 6px 16px; font-size: 13px; }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* 分页 */
.pager { display: flex; align-items: center; gap: 12px; margin-top: 16px; justify-content: flex-end; }
.pager-info { color: var(--ink-2); font-size: 13px; margin-right: auto; }

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