:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #1f2a37;
  --ink-2: #52606d;
  --muted: #7b8794;
  --line: #e4e8ef;
  --primary: #3056d3;
  --primary-ink: #ffffff;
  --ok: #12805c;
  --ok-bg: #e6f6ef;
  --warn: #a15c00;
  --warn-bg: #fff5e3;
  --bad: #c0281c;
  --bad-bg: #fdecea;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: .01em; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.right { text-align: right; }
.strong { font-weight: 600; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 650;
  font-size: 15px;
  white-space: nowrap;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3056d3, #6a8bff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex: 0 0 auto;
}
.nav { display: flex; gap: 6px; flex: 1; }
.nav a {
  color: var(--ink-2);
  padding: 7px 12px;
  border-radius: 8px;
  font-weight: 500;
}
.nav a:hover { background: #f1f4fa; }
.nav a.active { color: var(--primary); background: #eef2ff; }
.topbar-user { display: flex; align-items: center; gap: 14px; }
.username { color: var(--ink-2); font-size: 13px; }
.link-muted { color: var(--muted); font-size: 13px; }
.link-muted:hover { color: var(--primary); }

/* ---------- 布局 ---------- */
.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 26px 20px 64px;
}
.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.page-head p { margin: 6px 0 0; font-size: 13px; }

/* ---------- 卡片 / 栅格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.metric { display: flex; align-items: baseline; gap: 8px; }
.metric-value {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.metric-label { color: var(--muted); font-size: 13px; }
.comm-status { margin: 10px 0 16px; font-size: 13px; color: var(--ink-2); }
.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.dot-ok { background: #17b26a; }
.dot-bad { background: #e0483d; }
.dot-wait { background: #c3cad6; }
.card-actions { display: flex; gap: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  border-radius: 9px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 550;
  cursor: pointer;
  background: #fff;
  color: var(--ink);
  transition: background .15s, border-color .15s, opacity .15s;
}
.btn-primary { background: var(--primary); color: var(--primary-ink); }
.btn-primary:hover { background: #2748b8; }
.btn-ghost { border-color: var(--line); color: var(--ink-2); }
.btn-ghost:hover { background: #f5f7fb; }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12.5px; }
.btn-block { width: 100%; height: 40px; }
.btn:disabled { opacity: .55; cursor: default; }

/* ---------- 标签 / 状态 ---------- */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3149a8;
  font-size: 12px;
  font-weight: 550;
  white-space: nowrap;
}
.tag-ok { background: var(--ok-bg); color: var(--ok); }
.tag-off { background: #f1f3f6; color: var(--muted); }
.status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 550;
  white-space: nowrap;
}
.status-expired { background: var(--bad-bg); color: var(--bad); }
.status-soon { background: var(--warn-bg); color: var(--warn); }
.status-normal { background: var(--ok-bg); color: var(--ok); }
.status-unknown { background: #f1f3f6; color: var(--muted); }

/* ---------- 表格 ---------- */
.table-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.table th {
  background: #fafbfd;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.table tbody tr:hover { background: #fafbff; }
.table tbody tr:last-child td { border-bottom: none; }
.table .plate { font-weight: 650; letter-spacing: .02em; white-space: nowrap; }
.remark { color: var(--ink-2); max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.table-vehicles td { font-size: 13px; }

/* ---------- 筛选 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12.5px;
  color: var(--ink-2);
}
.chip b { color: var(--ink); }
.chip-expired { background: var(--bad-bg); border-color: #f7d4d0; color: var(--bad); }
.chip-expired b { color: var(--bad); }
.chip-soon { background: var(--warn-bg); border-color: #f5e2bd; color: var(--warn); }
.chip-soon b { color: var(--warn); }
.chip-normal { background: var(--ok-bg); border-color: #cdeadd; color: var(--ok); }
.chip-normal b { color: var(--ok); }
.chip-park { background: #eef2ff; border-color: #dbe3ff; color: #3149a8; }
.chip-park b { color: #3149a8; }

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.search {
  height: 36px;
  width: 300px;
  max-width: 100%;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  font-size: 13px;
  outline: none;
}
.search:focus { border-color: #9db0f0; box-shadow: 0 0 0 3px rgba(48, 86, 211, .12); }
.seg { display: inline-flex; background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 3px; }
.seg-btn {
  border: 0;
  background: transparent;
  color: var(--ink-2);
  font-size: 12.5px;
  padding: 5px 11px;
  border-radius: 7px;
  cursor: pointer;
}
.seg-btn.active { background: #eef2ff; color: var(--primary); font-weight: 600; }

/* ---------- 分页 / 空态 ---------- */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 16px;
}
.empty {
  text-align: center;
  color: var(--muted);
  padding: 36px 16px;
  background: #fff;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

/* ---------- 提示 ---------- */
.flash-wrap { margin-bottom: 14px; }
.flash {
  padding: 10px 14px;
  border-radius: 9px;
  margin-bottom: 8px;
  font-size: 13px;
}
.flash-error { background: var(--bad-bg); color: var(--bad); }
.flash-warn { background: var(--warn-bg); color: var(--warn); }
.flash-ok { background: var(--ok-bg); color: var(--ok); }
.alert {
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 16px;
  font-size: 13px;
}
.alert-error { background: var(--bad-bg); color: var(--bad); border: 1px solid #f5cfca; }
.alert-sub { margin-top: 4px; opacity: .8; }

/* ---------- 登录 ---------- */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(900px 400px at 15% 0%, #e7edff 0%, transparent 60%),
    radial-gradient(700px 360px at 90% 100%, #eaf7f1 0%, transparent 55%),
    var(--bg);
  padding: 24px;
}
.login-wrap { width: 100%; max-width: 400px; }
.login-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 30px 28px 22px;
  box-shadow: 0 18px 50px rgba(23, 37, 84, .10);
}
.login-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 22px; }
.login-brand h1 { font-size: 18px; }
.login-brand p { margin: 2px 0 0; font-size: 12.5px; }
.login-card .flash { margin-bottom: 12px; }
.login-foot { text-align: center; font-size: 12px; margin: 16px 0 0; }

/* ---------- 表单 ---------- */
.field { display: block; margin-bottom: 14px; }
.field span { display: block; font-size: 12.5px; color: var(--ink-2); margin-bottom: 6px; }
.field input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 14px;
  outline: none;
  background: #fff;
}
.field input:focus { border-color: #9db0f0; box-shadow: 0 0 0 3px rgba(48, 86, 211, .12); }
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  max-width: 440px;
}

/* ---------- 错误页 ---------- */
.error-page { text-align: center; padding: 80px 20px; }
.error-code { font-size: 56px; font-weight: 700; color: #c3cad6; letter-spacing: -.03em; }

@media (max-width: 860px) {
  .topbar-inner { gap: 14px; flex-wrap: wrap; height: auto; padding: 10px 14px; }
  .username { display: none; }
  .page { padding: 18px 14px 48px; }
  .table-card { overflow-x: auto; }
  .table { min-width: 760px; }
  .search { width: 100%; }
}

/* ---------- 写入面板（M3/M4） ---------- */
.write-panel, .task-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  margin-bottom: 16px;
}
.write-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.write-panel .muted { margin: 0 0 12px; font-size: 12.5px; }
.tag-warn { background: var(--warn-bg); color: var(--warn); }
.inline-form { display: flex; flex-wrap: wrap; gap: 10px; }
.inline-form input {
  height: 36px; padding: 0 12px; border: 1px solid var(--line);
  border-radius: 9px; font-size: 13px; outline: none; background: #fff;
}
.inline-form input[name="plate"] { width: 190px; }
.inline-form input[name="owner_name"] { width: 190px; }
.inline-form input[name="end_date"] { width: 160px; }
.task-list { list-style: none; margin: 0; padding: 0; font-size: 13px; max-height: 190px; overflow: auto; }
.task-list li { padding: 6px 0; border-bottom: 1px dashed var(--line); }
.task-list li:last-child { border-bottom: none; }
.task-s0, .task-s1 { color: var(--warn); }
.task-s2 { color: var(--ok); }
.task-s3 { color: var(--bad); }
.row-actions { white-space: nowrap; }