:root {
  --bg: #0f172a; --bg2: #1e293b; --bg3: #334155;
  --ink: #f1f5f9; --muted: #94a3b8; --rule: #334155;
  --accent: #3b82f6; --accent2: #8b5cf6;
  --success: #10b981; --warn: #f59e0b; --danger: #ef4444;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
  font-size: 14px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}
.topbar { background: var(--bg2); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 100; }
.topbar-inner { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; height: 56px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
.brand-text { font-weight: 600; font-size: 1rem; }
.topnav { display: flex; gap: 0.3rem; }
.nav-link { color: var(--muted); text-decoration: none; padding: 0.4rem 0.8rem; border-radius: 6px; font-size: 0.9rem; transition: all 0.15s; }
.nav-link:hover { color: var(--ink); background: var(--bg3); }
.nav-link.active { color: var(--ink); background: var(--bg3); }
.nav-logout:hover { color: var(--danger); }
.container { max-width: 1200px; margin: 0 auto; padding: 1.5rem; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { background: var(--bg2); border: 1px solid var(--rule); border-radius: 10px; padding: 1.2rem 1rem; text-align: center; border-left: 3px solid var(--accent); }
.stat-num { font-size: 1.8rem; font-weight: 700; line-height: 1.2; }
.stat-label { color: var(--muted); font-size: 0.85rem; margin-top: 0.3rem; }
.stat-active { border-left-color: var(--success); }
.stat-closed { border-left-color: var(--muted); }
.stat-expired { border-left-color: var(--danger); }
.stat-perm { border-left-color: var(--accent2); }
.stat-today { border-left-color: var(--warn); }
.toolbar { margin-bottom: 1rem; }
.search-form { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.search-form .input { flex: 1; min-width: 200px; }
.search-form select.input { width: auto; flex: 0 0 auto; min-width: 130px; }
.card { background: var(--bg2); border: 1px solid var(--rule); border-radius: 10px; padding: 1.5rem; margin-bottom: 1.5rem; }
.card-title { font-size: 1.1rem; font-weight: 600; color: var(--accent); margin-bottom: 1.2rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--rule); }
.form-grid { display: flex; flex-direction: column; gap: 1rem; max-width: 600px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group label { font-size: 0.9rem; font-weight: 500; }
.required { color: var(--danger); }
.hint { font-size: 0.8rem; color: var(--muted); }
.input { background: var(--bg); border: 1px solid var(--rule); border-radius: 6px; padding: 0.55rem 0.8rem; color: var(--ink); font-size: 0.9rem; font-family: inherit; transition: border-color 0.15s; }
.input:focus { outline: none; border-color: var(--accent); }
textarea.input { resize: vertical; }
.form-actions { display: flex; gap: 0.6rem; margin-top: 0.5rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.5rem 1rem; background: var(--bg3); color: var(--ink); border: 1px solid var(--rule); border-radius: 6px; font-size: 0.9rem; text-decoration: none; cursor: pointer; transition: all 0.15s; white-space: nowrap; }
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #2563eb; }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-warn { background: var(--warn); border-color: var(--warn); color: #fff; }
.btn-warn:hover { background: #d97706; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.8rem; }
.btn-block { width: 100%; }
.action-group { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--rule); vertical-align: middle; }
.data-table th { color: var(--accent); font-weight: 600; font-size: 0.85rem; background: rgba(59,130,246,0.05); }
.data-table tbody tr:hover { background: rgba(255,255,255,0.02); }
.domain-cell { font-weight: 600; font-family: Consolas, monospace; }
.remark-cell { font-size: 0.78rem; color: var(--muted); margin-top: 0.2rem; }
.sub-text { color: var(--muted); font-size: 0.82rem; }
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); font-size: 0.95rem; }
.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 10px; font-size: 0.78rem; font-weight: 500; }
.badge-ok { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-closed { background: rgba(148,163,184,0.15); color: var(--muted); }
.badge-warn { background: rgba(245,158,11,0.15); color: var(--warn); }
.badge-expired { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-perm { background: rgba(139,92,246,0.15); color: var(--accent2); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.pagination { display: flex; gap: 0.3rem; justify-content: center; margin-top: 1.2rem; flex-wrap: wrap; }
.page-btn { padding: 0.4rem 0.8rem; border-radius: 6px; background: var(--bg); color: var(--ink); text-decoration: none; font-size: 0.85rem; border: 1px solid var(--rule); }
.page-btn:hover { background: var(--bg3); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-btn.disabled { opacity: 0.4; pointer-events: none; }
.page-ellipsis { padding: 0.4rem 0.3rem; color: var(--muted); }
.alert { padding: 0.8rem 1.2rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert-error { background: rgba(239,68,68,0.1); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.alert-success { background: rgba(16,185,129,0.1); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.footer { text-align: center; color: var(--muted); padding: 2rem 1rem; font-size: 0.82rem; border-top: 1px solid var(--rule); margin-top: 2rem; }
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1rem; }
.login-card { background: var(--bg2); border: 1px solid var(--rule); border-radius: 12px; padding: 2.5rem; width: 100%; max-width: 380px; }
.login-logo { text-align: center; margin-bottom: 1.8rem; }
.logo-mark { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; font-weight: 700; font-size: 1.3rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; }
.login-card h1 { font-size: 1.3rem; font-weight: 700; }
.login-card p { color: var(--muted); font-size: 0.85rem; margin-top: 0.3rem; }
.login-card .form-group { margin-bottom: 1rem; }
.login-tip { text-align: center; margin-top: 1.5rem; font-size: 0.78rem; color: var(--muted); }
/* ---------- 日期选择器 ---------- */
.date-picker { cursor: pointer; }
.date-picker[readonly] { background: var(--bg); }
.date-presets { display: flex; gap: 0.4rem; margin-top: 0.4rem; flex-wrap: wrap; }
.preset-btn {
  padding: 0.2rem 0.6rem; font-size: 0.78rem;
  background: var(--bg); color: var(--muted);
  border: 1px solid var(--rule); border-radius: 5px;
  cursor: pointer; transition: all 0.15s;
}
.preset-btn:hover { color: var(--ink); border-color: var(--accent); background: var(--bg3); }
.preset-btn[data-preset="permanent"]:hover, .preset-btn[data-preset="clear"]:hover { color: var(--accent2); border-color: var(--accent2); }
.preset-btn[data-preset="1y"]:hover, .preset-btn[data-preset="2y"]:hover, .preset-btn[data-preset="3y"]:hover { color: var(--success); border-color: var(--success); }

/* flatpickr 暗色主题适配 */
.flatpickr-calendar { background: var(--bg2); border: 1px solid var(--rule); box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.flatpickr-calendar.arrowTop:before, .flatpickr-calendar.arrowTop:after,
.flatpickr-calendar.arrowBottom:before, .flatpickr-calendar.arrowBottom:after { border-bottom-color: var(--bg2); }
.flatpickr-months .flatpickr-month, .flatpickr-current-month { color: var(--ink); fill: var(--ink); }
.flatpickr-current-month input.cur-year { color: var(--ink); }
.flatpickr-current-month .numInputWrapper span.arrowUp:after { border-bottom-color: var(--muted); }
.flatpickr-current-month .numInputWrapper span.arrowDown:after { border-top-color: var(--muted); }
.flatpickr-weekday { color: var(--muted); fill: var(--muted); }
.flatpickr-day { color: var(--ink); border: 1px solid transparent; }
.flatpickr-day:hover { background: var(--bg3); border-color: var(--bg3); }
.flatpickr-day.prevMonthDay, .flatpickr-day.nextMonthDay { color: var(--muted); }
.flatpickr-day.selected, .flatpickr-day.selected:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.flatpickr-day.today { border-color: var(--accent); }
.flatpickr-day.today:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.flatpickr-monthSelect-month:hover { background: var(--bg3); }
span.flatpickr-weekday { color: var(--muted); }
.flatpickr-time input, .flatpickr-time .numInputWrapper span { color: var(--ink); }
.flatpickr-time input::-webkit-outer-spin-button, .flatpickr-time input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.flatpickr-time .flatpickr-time-sep, .flatpickr-time .flatpickr-am-pm { color: var(--muted); }

@media (max-width: 768px) {
  .topbar-inner { flex-direction: column; height: auto; padding: 0.8rem; gap: 0.5rem; }
  .topnav { flex-wrap: wrap; justify-content: center; }
  .form-row { grid-template-columns: 1fr; }
  .data-table { font-size: 0.8rem; }
  .data-table th, .data-table td { padding: 0.5rem; }
}