:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --border: #e8ebf2;
  --text: #1f2733;
  --text-soft: #6b7588;
  --primary: #2f6bff;
  --green: #16a34a;
  --orange: #f59e0b;
  --red: #ef4444;
  --shadow: 0 1px 3px rgba(18, 30, 60, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

/* ---------- 登录 ---------- */
.login-view {
  height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #2f6bff 0%, #1b3a8f 100%);
}
.login-card {
  width: 340px; background: #fff; border-radius: 14px; padding: 36px 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,.18); text-align: center;
}
.login-logo { font-size: 30px; font-weight: 800; color: var(--primary); letter-spacing: 2px; }
.login-sub { color: var(--text-soft); margin: 6px 0 24px; }
.login-input {
  width: 100%; padding: 11px 13px; margin-bottom: 14px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; outline: none;
}
.login-input:focus { border-color: var(--primary); }
.login-btn {
  width: 100%; padding: 11px; background: var(--primary); color: #fff; border: none;
  border-radius: 8px; font-size: 15px; cursor: pointer; font-weight: 600;
}
.login-btn:hover { background: #2559db; }
.login-error { color: var(--red); margin-top: 12px; min-height: 18px; font-size: 13px; }

/* ---------- 布局 ---------- */
.app-view { display: flex; height: 100vh; }
.sidebar {
  width: 200px; background: #0f1b33; color: #c5cee0; flex-shrink: 0;
  display: flex; flex-direction: column;
}
.brand {
  font-size: 22px; font-weight: 800; color: #fff; padding: 20px 24px; letter-spacing: 2px;
}
.nav { display: flex; flex-direction: column; padding: 8px 0; }
.nav-item {
  padding: 11px 24px; color: #aab4cc; cursor: pointer; font-size: 14px;
  border-left: 3px solid transparent; user-select: none;
}
.nav-item:hover { background: rgba(255,255,255,.05); color: #fff; }
.nav-item.active { background: rgba(47,107,255,.16); color: #fff; border-left-color: var(--primary); }

.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  height: 56px; background: #fff; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 24px; flex-shrink: 0;
}
.page-title { font-size: 16px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.bell { cursor: pointer; }
.admin-name { color: var(--text-soft); }
.logout-btn {
  background: none; border: 1px solid var(--border); padding: 5px 12px; border-radius: 6px;
  cursor: pointer; color: var(--text-soft);
}
.logout-btn:hover { color: var(--red); border-color: var(--red); }

.content { flex: 1; overflow-y: auto; padding: 22px 24px; }

/* ---------- 指标卡 ---------- */
.metrics { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 20px; }
.metric-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 18px; box-shadow: var(--shadow);
}
.metric-label { color: var(--text-soft); font-size: 13px; }
.metric-value { font-size: 28px; font-weight: 700; margin-top: 8px; }
.metric-value.warn { color: var(--orange); }
.metric-value.danger { color: var(--red); }
.metric-value.good { color: var(--green); }

/* ---------- 区块 ---------- */
.row { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 20px; }
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: var(--shadow); overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.panel-title { font-weight: 600; }
.panel-body { padding: 16px 18px; }

.range-tabs { display: flex; gap: 4px; }
.range-tab {
  padding: 4px 10px; border-radius: 6px; cursor: pointer; color: var(--text-soft); font-size: 13px;
}
.range-tab.active { background: #eaf0ff; color: var(--primary); }

#trend-chart { width: 100%; height: 280px; }

/* ---------- 告警 ---------- */
.alert-list { display: flex; flex-direction: column; }
.alert-item {
  display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px solid #f1f3f8;
}
.alert-item:last-child { border-bottom: none; }
.dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.dot.high { background: var(--red); }
.dot.medium { background: var(--orange); }
.dot.low { background: var(--green); }
.alert-main { flex: 1; }
.alert-type { font-weight: 500; }
.alert-meta { color: var(--text-soft); font-size: 12px; margin-top: 2px; }
.empty { color: var(--text-soft); text-align: center; padding: 28px 0; }

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; font-size: 13px; border-bottom: 1px solid #f1f3f8; }
th { color: var(--text-soft); font-weight: 500; background: #fafbfd; }
tbody tr:hover { background: #fafbff; }

.badge { padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 500; display: inline-block; }
.badge.success, .badge.active, .badge.authorized, .badge.bound, .badge.paid { background: #e7f7ee; color: var(--green); }
.badge.failed, .badge.denied, .badge.high, .badge.blocked, .badge.locked, .badge.revoked, .badge.expired, .badge.refunded { background: #fdeaea; color: var(--red); }
.badge.medium, .badge.kicked, .badge.device_limit, .badge.pending { background: #fef3e2; color: var(--orange); }
.badge.low, .badge.disabled, .badge.unbound, .badge.draft, .badge.closed { background: #eef1f6; color: var(--text-soft); }

.btn {
  padding: 4px 10px; border: 1px solid var(--border); background: #fff; border-radius: 6px;
  cursor: pointer; font-size: 12px; color: var(--text);
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.danger:hover { border-color: var(--red); color: var(--red); }
.toolbar { display: flex; gap: 8px; margin-bottom: 14px; align-items: center; }
.toolbar select, .toolbar input {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; outline: none;
}
.section-title { font-size: 15px; font-weight: 600; margin: 4px 0 14px; }

.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.primary:hover { background: #2559db; color: #fff; }

/* ---------- 通用表格：工具栏 / 排序 / 分页 ---------- */
.dt-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.dt-toolbar input, .dt-toolbar select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; outline: none;
}
.dt-toolbar input:focus, .dt-toolbar select:focus { border-color: var(--primary); }
.dt-search { min-width: 200px; }
.dt-spacer { flex: 1; }
th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
th.sortable:hover { color: var(--primary); }
th .sort-ind { color: var(--primary); font-size: 11px; }
.row-link { cursor: pointer; }
.row-link:hover { background: #f0f5ff !important; }
.dt-pager {
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
  padding: 12px 18px; color: var(--text-soft); font-size: 13px; border-top: 1px solid var(--border);
}
.dt-pager .btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 27, 51, .42); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
}
.modal {
  width: 440px; max-width: calc(100vw - 32px); max-height: calc(100vh - 64px); overflow-y: auto;
  background: #fff; border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-title { font-weight: 600; font-size: 15px; }
.modal-close { cursor: pointer; color: var(--text-soft); font-size: 20px; line-height: 1; border: none; background: none; }
.modal-body { padding: 18px 20px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--border); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--text-soft); margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 7px;
  font-size: 14px; outline: none; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); }
.field .hint { font-size: 12px; color: var(--text-soft); margin-top: 4px; }
.modal-error { color: var(--red); font-size: 13px; min-height: 18px; margin-right: auto; align-self: center; }

/* ---------- 抽屉 ---------- */
.drawer-mask { position: fixed; inset: 0; background: rgba(15, 27, 51, .42); z-index: 1000; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100vh; width: 560px; max-width: calc(100vw - 40px);
  background: var(--bg); box-shadow: -8px 0 30px rgba(0,0,0,.18); z-index: 1001;
  display: flex; flex-direction: column;
}
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px; background: #fff; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.drawer-title { font-weight: 600; font-size: 16px; }
.drawer-body { flex: 1; overflow-y: auto; padding: 18px 22px; }
.drawer-body .panel { margin-bottom: 16px; }
.kv { display: grid; grid-template-columns: 96px 1fr; gap: 8px 12px; padding: 16px 18px; }
.kv dt { color: var(--text-soft); font-size: 13px; }
.kv dd { font-size: 13px; word-break: break-all; }