:root {
  --bg: #f4f6fa;
  --card: #ffffff;
  --border: #e3e8f0;
  --text: #1f2733;
  --muted: #6b7688;
  --primary: #2f6fed;
  --primary-dark: #1f58d0;
  --danger: #e5484d;
  --ok: #2da44e;
  --warn: #d29922;
  --sidebar: #1b2434;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 210px; flex-shrink: 0; background: var(--sidebar); color: #cdd6e4;
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.logo { padding: 20px 18px; font-size: 16px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.logo-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #35c759; margin-right: 8px; }
.menu { display: flex; flex-direction: column; padding: 6px 10px; gap: 2px; }
.menu a, .sidebar-bottom a {
  color: #cdd6e4; padding: 10px 12px; border-radius: 8px; font-size: 14px;
}
.menu a:hover, .sidebar-bottom a:hover { background: rgba(255,255,255,.08); color: #fff; }
.menu a.active { background: var(--primary); color: #fff; }
.sidebar-bottom { margin-top: auto; padding: 10px; border-top: 1px solid rgba(255,255,255,.08); display: flex; flex-direction: column; }
.link-btn {
  background: none; border: none; color: #cdd6e4; text-align: left;
  padding: 10px 12px; border-radius: 8px; font-size: 14px; cursor: pointer; width: 100%;
}
.link-btn:hover { background: rgba(255,255,255,.08); color: #fff; }

.main { flex: 1; padding: 24px 28px; max-width: 1200px; }

h1 { font-size: 20px; margin-bottom: 18px; }
h2 { font-size: 16px; margin: 22px 0 12px; }
.page-desc { color: var(--muted); margin: -10px 0 18px; font-size: 13px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.flash.ok { background: #eaf7ee; color: #1a7f37; border: 1px solid #bfe3c8; }
.flash.err { background: #fdecec; color: #c62828; border: 1px solid #f5c6c8; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; margin-bottom: 24px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px; display: flex; flex-direction: column; gap: 6px;
}
.card .num { font-size: 26px; font-weight: 700; }
.card .label { color: var(--muted); font-size: 13px; }

.panel { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 20px; }
.panel > h3 { font-size: 15px; margin-bottom: 12px; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { background: #f7f9fc; font-size: 13px; color: var(--muted); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafbfd; }
td.wrap { max-width: 340px; white-space: pre-wrap; word-break: break-all; }

.btn {
  display: inline-block; background: var(--primary); color: #fff; border: none;
  padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.btn:hover { background: var(--primary-dark); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #c53035; }
.btn.ghost { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { background: #f2f5f9; }
.btn.ok { background: var(--ok); }

.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.badge.sent, .badge.success, .badge.enabled { background: #eaf7ee; color: #1a7f37; }
.badge.pending, .badge.sending { background: #fff8e1; color: #9a6700; }
.badge.partial, .badge.warn { background: #fdf3e0; color: #b26a00; }
.badge.failed { background: #fdecec; color: #c62828; }
.badge.cancelled, .badge.disabled { background: #eef1f6; color: #6b7688; }

form.inline { display: inline; }
.form-grid { display: grid; grid-template-columns: 140px 1fr; gap: 14px 16px; align-items: start; }
.form-grid label { padding-top: 8px; color: var(--muted); font-size: 13px; text-align: right; }
input[type=text], input[type=password], input[type=number], input[type=datetime-local], textarea, select {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff; color: var(--text);
}
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(47,111,237,.25); border-color: var(--primary); }
textarea { min-height: 110px; resize: vertical; }
.form-actions { grid-column: 2; display: flex; gap: 10px; margin-top: 6px; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 8px; }
.checkbox-item {
  display: inline-flex; align-items: center; gap: 6px; background: #f7f9fc;
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 12px; cursor: pointer;
}
.radio-row { display: flex; gap: 18px; padding-top: 8px; flex-wrap: wrap; }
.radio-row label { display: inline-flex; gap: 6px; align-items: center; cursor: pointer; color: var(--text); }
.hint { color: var(--muted); font-size: 12px; }

/* 登录页 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1b2434 0%, #2a3a5c 100%); }
.login-card {
  background: #fff; border-radius: 16px; padding: 36px; width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.login-card h1 { text-align: center; margin-bottom: 6px; }
.login-card .sub { text-align: center; color: var(--muted); margin-bottom: 24px; font-size: 13px; }
.login-card .field { margin-bottom: 16px; }
.login-card label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
.captcha-row { display: flex; gap: 10px; align-items: center; }
.captcha-row svg { border-radius: 6px; flex-shrink: 0; }
.login-btn { width: 100%; padding: 11px; font-size: 15px; margin-top: 6px; }

.empty { text-align: center; color: var(--muted); padding: 30px 0; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }