:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #1d4ed8;
  --brand-soft: #e8efff;
  --green: #0f766e;
  --orange: #b45309;
  --red: #b91c1c;
  --cyan: #0e7490;
  --blue: #1d4ed8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: #0f172a; color: #fff; padding: 10px 22px;
  position: sticky; top: 0; z-index: 20;
}
.brand a { color: #fff; font-weight: 700; font-size: 16px; letter-spacing: .5px; }
.brand .ver { color: #94a3b8; font-size: 11px; margin-left: 8px; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.topbar nav a {
  color: #cbd5e1; padding: 6px 10px; border-radius: 6px; font-size: 13px;
}
.topbar nav a:hover, .topbar nav a.active { background: #1e293b; color: #fff; text-decoration: none; }
.userbox { display: flex; align-items: center; gap: 8px; color: #e2e8f0; font-size: 12px; }
.userbox .roles { color: #94a3b8; }
.userbox .logout { color: #93c5fd; }
.container { max-width: 1320px; margin: 22px auto; padding: 0 20px 40px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px 0 30px; }

h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 22px 0 10px; }
h3 { font-size: 15px; margin: 16px 0 8px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 16px; }
.sub { color: var(--muted); font-size: 13px; }
.mono { font-family: Consolas, "Courier New", monospace; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px 20px; margin-bottom: 16px; box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.grid { display: grid; gap: 16px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1000px) { .grid.cols-4, .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }

.stat { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.stat .num { font-size: 26px; font-weight: 700; color: var(--brand); }
.stat .label { color: var(--muted); font-size: 12px; }

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border-bottom: 1px solid var(--line); padding: 9px 10px; text-align: left; vertical-align: top; }
th { background: #f8fafc; color: #475569; font-weight: 600; font-size: 12px; white-space: nowrap; }
tr:hover td { background: #fbfdff; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
.empty { color: var(--muted); text-align: center; padding: 26px 0; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; line-height: 1.6; white-space: nowrap; }
.badge-draft { background: #f1f5f9; color: #475569; }
.badge-submitted { background: #e0edff; color: #1d4ed8; }
.badge-approving { background: #fff4e0; color: var(--orange); }
.badge-effective { background: #dcfce7; color: var(--green); }
.badge-executing { background: #dff7fb; color: var(--cyan); }
.badge-closed { background: #e5e7eb; color: #4b5563; }
.badge-void { background: #fee2e2; color: var(--red); }

.btn {
  display: inline-block; padding: 7px 14px; border-radius: 7px; border: 1px solid var(--brand);
  background: var(--brand); color: #fff; font-size: 13px; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.06); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--brand); }
.btn.ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn.danger { background: #fff; color: var(--red); border-color: #fca5a5; }
.btn.small { padding: 4px 9px; font-size: 12px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%; padding: 7px 9px; border: 1px solid #cbd5e1; border-radius: 6px;
  font-family: inherit; font-size: 13px; color: var(--ink); background: #fff;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--brand); }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 18px; }
@media (max-width: 760px) { .form-grid { grid-template-columns: 1fr; } }
.form-item label { display: block; font-size: 12px; color: #475569; margin-bottom: 4px; }
.form-item .req { color: var(--red); margin-left: 2px; }
.form-item .help { color: var(--muted); font-size: 11px; margin-top: 3px; }
.form-item.full { grid-column: 1 / -1; }
.form-actions { margin-top: 16px; display: flex; gap: 10px; align-items: center; }
.inline-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.alert { background: #fef2f2; border: 1px solid #fecaca; color: var(--red); padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.notice { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e3a8a; padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.success { background: #ecfdf5; border: 1px solid #a7f3d0; color: var(--green); padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }

.kv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 18px; }
@media (max-width: 900px) { .kv { grid-template-columns: repeat(2, 1fr); } }
.kv .k { color: var(--muted); font-size: 12px; }
.kv .v { font-weight: 600; word-break: break-all; }

.timeline { border-left: 2px solid var(--line); margin-left: 6px; padding-left: 16px; }
.timeline .item { margin-bottom: 12px; position: relative; }
.timeline .item::before {
  content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--brand);
  position: absolute; left: -21px; top: 6px;
}
.timeline .meta { color: var(--muted); font-size: 12px; }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs a { padding: 6px 12px; border: 1px solid var(--line); background: #fff; border-radius: 999px; font-size: 12px; color: #475569; }
.tabs a.active { background: var(--brand-soft); border-color: #bfdbfe; color: var(--brand); }

.code { background: #0f172a; color: #e2e8f0; border-radius: 8px; padding: 14px 16px; overflow-x: auto; font-size: 12px; line-height: 1.7; }
.code .c { color: #94a3b8; }
.hint { color: var(--muted); font-size: 12px; }
.mt0 { margin-top: 0; } .mt8 { margin-top: 8px; } .mt16 { margin-top: 16px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* ---------------- 移动端 / 平板适配 ---------------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}
.table-wrap table { min-width: 680px; }
.nav-toggle-cb { display: none; }
.nav-toggle-label { display: none; }

@media (hover: none), (pointer: coarse) {
  .btn { min-height: 42px; padding: 10px 15px; }
  .btn.small { min-height: 36px; padding: 7px 11px; }
  input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
    min-height: 42px;
  }
  .topbar nav a { min-height: 42px; display: inline-flex; align-items: center; }
}

@media (max-width: 980px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .topbar { padding: 10px 14px; gap: 10px; position: sticky; }
  .brand { flex: 1; }
  .nav-toggle-label {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 12px; border: 1px solid #334155; border-radius: 8px;
    color: #e2e8f0; font-size: 13px; cursor: pointer; user-select: none;
  }
  .topbar nav {
    display: none; order: 10; flex-basis: 100%; width: 100%;
    flex-direction: column; gap: 2px; padding-top: 8px;
    border-top: 1px solid #1e293b;
  }
  .nav-toggle-cb:checked ~ nav { display: flex; }
  .topbar nav a { width: 100%; padding: 10px 12px; }
  .userbox { order: 2; }
  .container { margin: 14px auto; padding: 0 12px 30px; }
  .panel { padding: 14px; border-radius: 8px; }
  .page-head { flex-direction: column; align-items: stretch; gap: 10px; }
  .page-head .btn-row { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .kv { grid-template-columns: repeat(2, 1fr); }
  .inline-form { align-items: stretch; }
  .inline-form input[type=text], .inline-form select { flex: 1 1 150px; width: auto !important; }
  .inline-form .btn { flex: 0 0 auto; }
  .tabs a { flex: 1 1 auto; text-align: center; }
}

@media (max-width: 560px) {
  body { font-size: 14px; }
  h1 { font-size: 19px; }
  h2 { font-size: 16px; }
  .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .stat { padding: 13px 14px; }
  .stat .num { font-size: 22px; }
  .kv { grid-template-columns: 1fr; }
  .btn-row { gap: 6px; }
  .btn-row .btn { flex: 1 1 calc(50% - 6px); text-align: center; }
  .form-actions { flex-wrap: wrap; }
  .form-actions .btn { flex: 1 1 100%; text-align: center; }
  .table-wrap table { min-width: 620px; }
  th, td { padding: 8px 8px; }
  .userbox .roles { display: none; }
  .footer { padding: 14px 10px 24px; }
}