:root {
  color-scheme: light;
  --primary: #1e40af;
  --primary-strong: #17358f;
  --secondary: #3b82f6;
  --accent: #b45309;
  --accent-soft: #fff7ed;
  --background: #f8fafc;
  --card: #ffffff;
  --text: #172554;
  --muted: #53647f;
  --border: #dbeafe;
  --border-strong: #bfdbfe;
  --success: #166534;
  --danger: #b91c1c;
  --shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
  --radius: 14px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--background); }
body {
  margin: 0;
  min-width: 0;
  min-height: 100dvh;
  color: var(--text);
  background: var(--background);
  font: 15px/1.55 var(--font);
}
button, input, select, textarea { font: inherit; }
button, a, select { touch-action: manipulation; }
button, a { cursor: pointer; }
a { color: var(--primary); }
svg { display: block; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid rgba(30, 64, 175, .35); outline-offset: 2px; }

.login-screen {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-5);
  background:
    radial-gradient(circle at 15% 15%, rgba(59, 130, 246, .16), transparent 34%),
    linear-gradient(145deg, #eff6ff 0%, #f8fafc 48%, #fff7ed 100%);
}
.login-card {
  width: min(440px, 100%);
  padding: 40px;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: 0 24px 70px rgba(30, 64, 175, .14);
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  color: #fff;
  background: var(--primary);
  border-radius: 15px;
  box-shadow: 0 8px 18px rgba(30, 64, 175, .25);
}
.brand-mark.small { width: 38px; height: 38px; border-radius: 11px; }
.brand-mark .icon { width: 26px; height: 26px; }
.brand-mark.small .icon { width: 21px; height: 21px; }
.eyebrow {
  margin: 16px 0 5px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2 { margin: 0; line-height: 1.25; letter-spacing: -.02em; }
h1 { font-size: clamp(26px, 3vw, 34px); }
h2 { font-size: 19px; }
p { margin: 0; }
.muted { color: var(--muted); margin-top: var(--space-2); }
.stack { display: grid; gap: var(--space-4); margin-top: var(--space-5); }
.field { display: grid; gap: 6px; min-width: 0; }
.field.grow { flex: 1 1 280px; }
label { color: #263b69; font-size: 13px; font-weight: 650; }
input, select, textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 13px;
  color: var(--text);
  background: #fff;
  border: 1px solid #cbd9ef;
  border-radius: 9px;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(30, 64, 175, .13);
}
.form-error { color: var(--danger); font-size: 13px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 15px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-weight: 700;
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}
.button:active { transform: translateY(1px); }
.button.primary { color: #fff; background: var(--primary); }
.button.primary:hover { background: var(--primary-strong); }
.button.quiet { color: var(--text); background: #fff; border-color: var(--border-strong); }
.button.quiet:hover { border-color: var(--primary); }
.icon-button {
  display: grid; place-items: center; width: 42px; height: 42px;
  padding: 0; color: var(--muted); background: transparent;
  border: 1px solid transparent; border-radius: 9px;
}
.icon-button:hover { color: var(--primary); background: #eff6ff; border-color: var(--border); }
.text-button {
  min-height: 36px; padding: 4px 0; color: var(--primary);
  background: transparent; border: 0; font-weight: 700;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; }
.brand small { color: var(--muted); font-size: 11px; }
.top-actions { display: flex; align-items: center; gap: 10px; }
.status-dot { display: inline-flex; align-items: center; gap: 6px; color: var(--success); font-size: 12px; }
.status-dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.workspace { min-width: 0; display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: calc(100dvh - 64px); }
.sidebar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 14px;
  background: #fff;
  border-right: 1px solid var(--border);
}
.nav-list { display: grid; gap: 5px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 9px 11px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  text-align: left;
  font-weight: 650;
}
.nav-item:hover { color: var(--primary); background: #eff6ff; }
.nav-item.active { color: #fff; background: var(--primary); }
.sidebar-note { padding: 12px; color: var(--muted); font-size: 11px; line-height: 1.5; background: var(--background); border-radius: 10px; }
.content { min-width: 0; padding: 26px clamp(18px, 3vw, 38px) 48px; }
.view { max-width: 1400px; margin: 0 auto; }
.page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.page-heading.compact { align-items: center; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.metric-card {
  position: relative;
  overflow: hidden;
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.metric-card::after { content: ""; position: absolute; inset: auto 0 0; height: 3px; background: var(--secondary); opacity: .35; }
.metric-card.accent::after { background: var(--accent); opacity: .85; }
.metric-card span, .metric-card small { display: block; color: var(--muted); font-size: 12px; }
.metric-card strong { display: block; margin: 6px 0 2px; color: var(--text); font: 700 30px/1.1 ui-monospace, SFMono-Regular, Consolas, monospace; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 16px; }
.panel {
  min-width: 0;
  padding: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.panel-heading .eyebrow { margin: 0 0 3px; }
.search-composer { display: flex; gap: 8px; }
.search-composer input { flex: 1; }
.search-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.search-link { display: inline-flex; align-items: center; gap: 6px; padding: 8px 11px; color: var(--primary); background: #eff6ff; border: 1px solid var(--border); border-radius: 8px; text-decoration: none; font-weight: 700; }
.search-link:hover { border-color: var(--primary); }
.empty-inline { color: var(--muted); font-size: 13px; }
.priority-list { display: grid; gap: 8px; }
.priority-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; padding: 10px; background: var(--background); border: 1px solid transparent; border-radius: 9px; cursor: pointer; }
.priority-item:hover { border-color: var(--border-strong); background: #f4f8ff; }
.priority-name { min-width: 0; }
.priority-name strong, .priority-name span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.priority-name span { color: var(--muted); font-size: 12px; }
.score { color: var(--primary); font: 700 14px/1 ui-monospace, Consolas, monospace; }
.badge { display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 25px; padding: 0 8px; border-radius: 999px; font: 700 12px/1 ui-monospace, Consolas, monospace; }
.badge.A { color: #fff; background: var(--success); }
.badge.B { color: #92400e; background: #fef3c7; }
.badge.C { color: #475569; background: #e2e8f0; }
.badge.EXCLUDED { color: var(--danger); background: #fee2e2; }

.filterbar { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; margin-bottom: 14px; }
.filterbar .field { min-width: 150px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 10px; text-align: left; border-bottom: 1px solid #e7eef9; vertical-align: top; }
th { color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
tbody tr { transition: background 160ms ease; }
tbody tr:hover { background: #f7faff; }
td strong, td span { display: block; overflow-wrap: anywhere; }
td span { color: var(--muted); font-size: 12px; margin-top: 2px; }
.evidence-cell { max-width: 360px; color: #334155; font-size: 13px; }
.row-button { min-height: 34px; padding: 6px 9px; color: var(--primary); background: transparent; border: 1px solid var(--border-strong); border-radius: 7px; font-weight: 700; }
.empty-state { padding: 44px 20px; text-align: center; }
.empty-icon { width: 42px; height: 42px; margin: 0 auto 12px; color: var(--secondary); fill: none; stroke: currentColor; stroke-width: 1.4; }
.empty-state p { color: var(--muted); margin: 7px 0 16px; }
.keywords-grid { grid-template-columns: minmax(280px, .7fr) minmax(0, 1.3fr); }
.count-badge { min-width: 30px; padding: 4px 8px; color: var(--primary); background: #eff6ff; border-radius: 999px; text-align: center; font: 700 12px/1.4 ui-monospace, Consolas, monospace; }
.keyword-list { display: grid; gap: 7px; }
.keyword-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 10px; background: var(--background); border: 1px solid transparent; border-radius: 9px; }
.keyword-item:hover { border-color: var(--border); }
.keyword-item.disabled { opacity: .58; }
.keyword-title { min-width: 0; }
.keyword-title strong, .keyword-title span { display: block; overflow-wrap: anywhere; }
.keyword-title span { color: var(--muted); font-size: 12px; }
.keyword-actions { display: flex; align-items: center; gap: 4px; }
.mini-button { min-height: 32px; padding: 5px 8px; color: var(--primary); background: #fff; border: 1px solid var(--border); border-radius: 7px; font-size: 12px; font-weight: 700; }
.mini-button.danger { color: var(--danger); }
.collector-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; margin-bottom: 16px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.steps li { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; }
.steps li > span { display: grid; place-items: center; width: 26px; height: 26px; color: #fff; background: var(--primary); border-radius: 50%; font: 700 12px/1 ui-monospace, Consolas, monospace; }
.steps p { color: #334155; }
code { padding: 2px 5px; background: #eef2ff; border-radius: 4px; }
.rule-list { display: grid; gap: 10px; }
.rule-list > div { padding-left: 12px; border-left: 3px solid var(--secondary); }
.rule-list p { margin-top: 4px; color: var(--muted); font-size: 13px; }
.collector-test { margin-top: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.span-2 { grid-column: span 2; }

.dialog { max-width: min(680px, calc(100vw - 24px)); padding: 0; border: 0; border-radius: 16px; box-shadow: 0 30px 80px rgba(15, 23, 42, .3); }
.dialog::backdrop { background: rgba(15, 23, 42, .56); }
.dialog-card { padding: 22px; background: #fff; }
.dialog-heading { display: flex; justify-content: space-between; gap: 16px; align-items: start; margin-bottom: 15px; }
.dialog-heading .eyebrow { margin-top: 0; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
.detail-grid > div { padding: 10px; background: var(--background); border-radius: 8px; }
.detail-grid span, .detail-grid strong { display: block; overflow-wrap: anywhere; }
.detail-grid span, .evidence-box span { color: var(--muted); font-size: 11px; }
.detail-grid strong { margin-top: 3px; font-size: 13px; }
.evidence-box { margin: 14px 0; padding: 12px; background: var(--accent-soft); border: 1px solid #fed7aa; border-radius: 9px; }
.evidence-box p { margin-top: 5px; color: #7c2d12; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 100;
  max-width: min(380px, calc(100vw - 40px)); padding: 12px 16px;
  color: #fff; background: #0f172a; border-radius: 9px;
  box-shadow: 0 12px 36px rgba(15, 23, 42, .25);
}

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 1fr; }
  .sidebar { width: 100%; min-width: 0; position: sticky; top: 64px; z-index: 15; flex-direction: row; padding: 7px 12px; border-right: 0; border-bottom: 1px solid var(--border); }
  .nav-list { display: flex; width: 100%; overflow-x: auto; }
  .nav-item { justify-content: center; flex: 1 1 0; min-width: 0; white-space: nowrap; }
  .sidebar-note { display: none; }
  .dashboard-grid, .keywords-grid, .collector-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .topbar { padding: 9px 12px; }
  .brand small { display: none; }
  .top-actions .quiet { width: 42px; padding: 0; font-size: 0; }
  .status-dot { display: none; }
  .content { padding: 18px 12px 36px; }
  .page-heading { align-items: stretch; flex-direction: column; }
  .page-heading .button { width: 100%; }
  .metric-card { padding: 14px; }
  .metric-card strong { font-size: 25px; }
  .form-grid, .detail-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .panel { padding: 14px; }
  .keyword-item { grid-template-columns: 1fr; }
  .keyword-actions { flex-wrap: wrap; }
  .search-composer { flex-direction: column; }
  th:nth-child(3), td:nth-child(3) { display: none; }
  .evidence-cell { max-width: 220px; }
  .nav-item span { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}