/* 智构通 - 样式 */
:root {
  /* 主色：钢蓝（工程/信任感） */
  --primary: #1d4ed8;
  --primary-600: #1e40af;
  --primary-700: #1e3a8a;
  --primary-light: #eaf1ff;
  /* 强调：工程橙（安全/警示语义，呼应工地） */
  --accent: #f97316;
  --accent-soft: #fff4e6;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --text: #1f2933;
  --text-dim: #66748a;
  --text-mute: #9aa6b8;
  --border: #e6eaf0;
  --border-strong: #d4dae3;
  --success: #10b981;
  --success-soft: #ecfdf5;
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-soft: #fef2f2;
  /* 圆角梯度 */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  /* 阴影梯度 */
  --shadow-xs: 0 1px 2px rgba(16,24,40,.06);
  --shadow-sm: 0 1px 3px rgba(16,24,40,.08);
  --shadow-md: 0 4px 14px rgba(16,24,40,.08);
  --shadow-lg: 0 10px 30px rgba(16,24,40,.12);
  --ring: 0 0 0 3px rgba(29,78,216,.18);
  /* 节奏间距 */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 20px; --sp-6: 24px;
  --ease: cubic-bezier(.4,0,.2,1);
  --trans: .18s var(--ease);
}

/* ── 设计系统：基础规范化 ──────────────────── */
* { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--primary-light); }
h3 { font-size: 17px; font-weight: 700; letter-spacing: .2px; color: #16202c; }
h4 { font-size: 15px; font-weight: 650; color: #2a3645; }
.dim { color: var(--text-dim); font-size: 13px; line-height: 1.6; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Topbar ──────────────────────────── */
.topbar {
  background: linear-gradient(135deg, var(--primary) 0%, #2563eb 55%, #3b82f6 100%);
  color: #fff;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(29,78,216,.28);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo { font-size: 20px; font-weight: 800; letter-spacing: .5px; }
.subtitle { font-size: 12px; opacity: .85; font-weight: 400; }

/* ── Tabs ────────────────────────────── */
.tabs {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 48px;
  z-index: 99;
  gap: 0;
  padding: 0 8px;
}
.tab {
  flex: 0 0 auto;
  padding: 10px 14px;
  font-size: 13px;
  border: none;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all .2s;
}
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.tab.active::after { width: 100%; }

/* ── Content ─────────────────────────── */
.tab-content {
  display: none;
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 12px 40px;
}
.tab-content.active { display: block; animation: fadeUp .35s var(--ease) both; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px;
  margin-bottom: 14px;
  transition: box-shadow var(--trans), border-color var(--trans), transform var(--trans);
}
.card h3, .card h4 { margin-bottom: 12px; }

/* 可交互卡片：hover 微抬 */
.card-interactive { cursor: pointer; }
.card-interactive:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

/* ── Form ────────────────────────────── */
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.col { flex: 1; min-width: 260px; }
.col-3 { flex: 0 0 120px; }
.col-9 { flex: 1; min-width: 200px; }
label { display: block; font-size: 13px; margin-bottom: 6px; font-weight: 500; color: #2a3645; }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 8px;
  background: #fff;
  color: var(--text);
  transition: border-color var(--trans), box-shadow var(--trans);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: var(--ring);
}
select { appearance: auto; }
input::placeholder, textarea::placeholder { color: var(--text-mute); }

/* ── Buttons ─────────────────────────── */
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; align-items: center; }
.btns-big { gap: 12px; margin-top: 16px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-size: 14px; font-weight: 500; cursor: pointer;
  background: #eef1f6; color: #374151;
  transition: background var(--trans), box-shadow var(--trans), transform var(--trans), color var(--trans);
  user-select: none;
}
.btn:hover { background: #e2e7ef; }
.btn:active { transform: translateY(1px) scale(.99); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn[disabled], .btn.loading { opacity: .65; cursor: not-allowed; pointer-events: none; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(29,78,216,.25); }
.btn-primary:hover { background: var(--primary-600); box-shadow: 0 4px 14px rgba(29,78,216,.32); }
.btn-primary:active { background: var(--primary-700); }
.btn-outline { background: #fff; border-color: var(--border-strong); color: #374151; }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.btn-success { background: var(--success); color: #fff; box-shadow: 0 2px 8px rgba(16,185,129,.25); }
.btn-success:hover { background: #0ea271; }
.btn-print { background: #fff7ed; border-color: #fed7aa; color: #c2410c; }
.btn-print:hover { background: var(--accent-soft); border-color: var(--accent); color: #ea580c; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn-lg { padding: 13px 22px; font-size: 16px; font-weight: 600; }
/* 按钮内加载旋转 */
.btn.loading::before {
  content: ""; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.45); border-top-color: #fff;
  animation: spin .7s linear infinite;
}
.btn-outline.loading::before, .btn-print.loading::before { border-color: rgba(0,0,0,.15); border-top-color: var(--primary); }
.btn-sm.loading::before { width: 11px; height: 11px; border-width: 2px; }

/* ── Result ──────────────────────────── */
.scenario-tabs { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.scenario-tab {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 14px; cursor: pointer; text-align: left; min-width: 120px;
}
.scenario-tab.active { border-color: var(--primary); background: var(--primary-light); }
.scenario-tab .tab-name { display: block; font-weight: 600; font-size: 14px; }
.scenario-tab .tab-meta { display: block; font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* ── Table ───────────────────────────── */
.table-wrap { overflow-x: auto; }
.data-table {
  width: 100%; border-collapse: collapse; font-size: 13px; min-width: 540px;
}
.data-table th, .data-table td {
  border: 1px solid var(--border); padding: 9px 10px; text-align: center;
}
.data-table th { background: var(--primary-light); color: var(--primary-700); font-weight: 650; border-color: #cfe0f3; }
.data-table tr:nth-child(even) { background: #fafbfd; }
.data-table tr:hover { background: #f1f6ff; }
.data-table input { margin-bottom: 0; padding: 4px; }

.markdown-body p { margin-bottom: 8px; }
.markdown-body table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 8px 0; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 7px; }
.markdown-body th { background: #f9fafb; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { margin: 12px 0 8px; }
.markdown-body a { color: var(--primary); }

/* ── Chat ────────────────────────────── */
.chat-box {
  height: 360px; overflow-y: auto; border: 1px solid var(--border);
  border-radius: 10px; padding: 12px; background: #f9fafb; margin-bottom: 10px;
}
.chat-msg { display: flex; margin-bottom: 10px; }
.chat-msg.user { justify-content: flex-end; }
.chat-msg.assistant { justify-content: flex-start; }
.chat-msg .bubble {
  max-width: 80%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.5;
}
.chat-msg.user .bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.assistant .bubble { background: #fff; border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.chat-input-row { display: flex; gap: 8px; }
.chat-input-row input { flex: 1; margin-bottom: 0; }
.quick-btns { margin-bottom: 8px; }

.chat-quick-panel { display: flex; flex-direction: column; gap: 8px; padding: 10px 12px; background: linear-gradient(180deg, #f8fbff 0%, #fff 100%); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: 12px; }
.qb-group { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.qb-label { font-size: 12px; font-weight: 700; color: var(--text-mute); min-width: 52px; }
.chat-quick-panel .btn-sm { font-size: 12px; padding: 5px 10px; border-radius: 999px; background: #fff; border: 1px solid var(--primary-light); color: var(--primary); }
.chat-quick-panel .btn-sm:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.qb-hint { font-size: 11.5px; color: var(--text-mute); text-align: center; padding-top: 4px; }

/* ── Toast ───────────────────────────── */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: #333; color: #fff; padding: 10px 18px; border-radius: 20px;
  font-size: 13px; opacity: 0; pointer-events: none; transition: .3s; z-index: 200;
}
.toast.show { opacity: 1; }
.toast.error { background: var(--danger); }

/* ── Progress ────────────────────────── */
.progress-bar { height: 6px; background: #e5e7eb; border-radius: 3px; margin-top: 12px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: var(--primary); transition: width .3s; }

/* ── 3D Gallery ──────────────────────── */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.gallery-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.gallery-item img { width: 100%; display: block; }
.gallery-label { padding: 8px; font-size: 12px; color: var(--text-dim); text-align: center; }

/* ── Hint ────────────────────────────── */
.hint { font-size: 12px; color: var(--text-dim); display: block; margin: 4px 0; }

/* ── 路线页地址复用摘要 ──────────────── */
.route-addr {
  background: #eef3fb;
  border: 1px solid #cfe0f3;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  margin: 4px 0 12px;
  color: #1f3a5f;
}
.route-addr.empty {
  background: #fff7e6;
  border-color: #ffe0a3;
  color: #8a6d3b;
}

/* ── Suggest dropdown ────────────────── */
.suggest-list {
  position: absolute; background: #fff; border: 1px solid var(--border);
  border-radius: 8px; box-shadow: var(--shadow); max-height: 220px; overflow-y: auto;
  z-index: 50; width: 100%; display: none;
}
.suggest-item { padding: 8px 12px; cursor: pointer; border-bottom: 1px solid #f3f4f6; }
.suggest-item:hover { background: #f9fafb; }
.suggest-item strong { display: block; font-size: 14px; }
.suggest-item small { color: var(--text-dim); font-size: 12px; margin-right: 6px; }
.suggest-item .dim { display: block; font-size: 12px; margin-top: 2px; }

/* ── Checkbox label ──────────────────── */
.checkbox-label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-dim); cursor: pointer;
}
.checkbox-label input { width: auto; margin-bottom: 0; }

/* ── Responsive ──────────────────────── */
@media (max-width: 768px) {
  .col { min-width: 100%; }
  .ov-grid { grid-template-columns: repeat(2, 1fr); }
  .ov-feat { grid-template-columns: 1fr; }
  .ov-num { font-size: 24px; }
  .btn-lg { font-size: 14px; padding: 10px 16px; }
  .tab-content { padding: 8px; }
}

/* ── 路线缩略图 ──────────────────────── */
.route-mini-map {
  width: 100%;
  max-width: 640px;
  border-radius: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
}

.route-map-fallback {
  padding: 24px;
  text-align: center;
  background: var(--primary-light);
  border: 1px dashed var(--primary);
  border-radius: 10px;
  color: var(--text-dim);
}
.route-map-fallback p { margin-bottom: 12px; }

/* ── 主动天气预警横幅 ───────────────────── */
.weather-alert-wrap {
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.weather-alert {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.5;
}
.alert-red {
  background: #fee2e2;
  border: 1px solid #ef4444;
  color: #991b1b;
}
.alert-orange {
  background: #fff7ed;
  border: 1px solid #f97316;
  color: #9a3412;
}
.alert-yellow {
  background: #fefce8;
  border: 1px solid #eab308;
  color: #854d0e;
}

/* ── 小灵通方案结果卡片 ─────────────── */
.plan-result-card {
  background: #f0f9ff;
  border: 1px solid #1a56db;
  border-radius: 12px;
  padding: 16px;
  margin: 6px 0;
  font-size: 13px;
}
.plan-card-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--primary);
  margin-bottom: 10px;
}
.plan-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}
.plan-stat {
  background: #fff;
  border-radius: 8px;
  padding: 8px;
  text-align: center;
  border: 1px solid var(--border);
}
.plan-stat-num {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}
.plan-stat-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}
.plan-card-detail {
  font-size: 12px;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.6;
}
.veh-tag {
  display: inline-block;
  background: #e8f0fe;
  border-radius: 4px;
  padding: 2px 6px;
  margin: 2px 3px 2px 0;
  font-size: 11px;
}
.plan-card-reason {
  background: #fff;
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text);
  border-left: 3px solid var(--primary);
  line-height: 1.6;
}
.plan-card-reason p { margin: 0 0 6px; }
.plan-card-reason p:last-child { margin-bottom: 0; }
.plan-card-reason h2, .plan-card-reason h3 {
  font-size: 13px;
  margin: 8px 0 4px;
  color: var(--primary-700);
}
.plan-card-reason table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  margin: 6px 0;
}
.plan-card-reason th,
.plan-card-reason td {
  border: 1px solid var(--border-strong);
  padding: 4px 6px;
  text-align: left;
}
.plan-card-reason th {
  background: #f4f6f9;
  font-weight: 600;
}
.plan-card-reason pre {
  background: #f4f6f9;
  border-radius: 4px;
  padding: 6px;
  overflow-x: auto;
  font-size: 11px;
}

/* ═══════════ 步骤条 ═══════════ */
.step-bar {
  display: flex;
  gap: 8px;
  margin: 4px 0 14px;
  background: #fff;
  border-radius: 10px;
  padding: 12px;
  box-shadow: var(--shadow);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.step {
  flex: 1 1 0;
  min-width: 120px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-dim);
  background: #f9fafb;
  border: 1px solid transparent;
  transition: .2s;
  white-space: nowrap;
}
.step:hover { background: #f1f5f9; }
.step.active { background: var(--primary-light); border-color: var(--primary); color: var(--primary); font-weight: 600; }
.step-num {
  width: 24px; height: 24px; flex: 0 0 24px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: #fff; border-radius: 50%;
  font-size: 13px; font-weight: 700;
}
.step:not(.active) .step-num { background: #cbd5e1; }
.step-text { font-size: 13px; }

/* ═══════════ 结果 KPI ═══════════ */
.kpi-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 4px 0 16px;
}
.kpi {
  background: linear-gradient(135deg, #eef3fb, #e3edfb);
  border: 1px solid #cfe0f3;
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
}
.kpi-num { font-size: 22px; font-weight: 700; color: var(--primary); }
.kpi-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

/* ═══════════ 结果卡片 ═══════════ */
.result-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 14px;
}
.result-card-title { margin-bottom: 10px; font-size: 15px; }

/* ═══════════ 概览图表 ═══════════ */
.ov-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 12px; }
.ov-chart { background: #f8fafc; border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.ov-chart-title { font-size: 14px; font-weight: 700; margin-bottom: 6px; color: #1f2937; }
.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.bar-label {
  flex: 0 0 80px; width: 80px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text); font-weight: 500;
}
.bar-track { flex: 1; height: 14px; background: #eef2f7; border-radius: 7px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: linear-gradient(90deg, #1a56db, #3b82f6); border-radius: 7px; }
.bar-fill-veh { background: linear-gradient(90deg, #0e9f6e, #31c48d); }
.bar-val { flex: 0 0 38px; text-align: right; font-weight: 700; color: var(--text); }
.bar-tags { display: inline-flex; gap: 4px; flex-wrap: wrap; }
.bar-tag {
  display: inline-block; padding: 2px 6px; border-radius: 4px; font-size: 11px;
  font-weight: 500; white-space: nowrap; line-height: 1.3;
}
.bar-tag-heavy { background: #fee2e2; color: #b91c1c; }
.bar-tag-long  { background: #fef3c7; color: #b45309; }
.bar-tag-odd   { background: #e0e7ff; color: #4338ca; }
.bar-tag-light { background: #ecfdf5; color: #047857; }
.bar-row-comp { align-items: flex-start; }
.bar-row-comp .bar-label { margin-top: 2px; }
.bar-row-comp .bar-track { margin-top: 4px; }
.bar-row-comp .bar-main { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.bar-row-comp .bar-meta { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--text-dim); flex-wrap: wrap; }

/* 难度徽章 */
.diff-badge {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; padding: 2px 6px; border-radius: 6px;
  font-size: 11px; font-weight: 700; color: #fff;
}
.diff-easy { background: #10b981; }
.diff-medium { background: #f59e0b; }
.diff-hard { background: #ef4444; }

/* 图例 */
.ov-legend {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin-bottom: 12px; padding: 10px 12px;
  background: #f8fafc; border: 1px solid var(--border); border-radius: 8px;
  font-size: 12px; color: var(--text-dim);
}
.ov-legend-item { display: inline-flex; align-items: center; gap: 5px; }
.ov-legend-dot {
  width: 10px; height: 10px; border-radius: 50%; display: inline-block;
}

/* 调度提示 */
.ov-insight {
  margin-top: 14px; padding: 14px; background: #eff6ff; border: 1px solid #bfdbfe;
  border-radius: 10px; font-size: 13px; color: #1e40af; line-height: 1.7;
}
.ov-insight-title { font-weight: 700; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.ov-insight ul { margin: 0; padding-left: 18px; }
.ov-insight li { margin-bottom: 3px; }

@media (max-width: 768px) {
  .kpi-bar { grid-template-columns: repeat(2, 1fr); }
  .ov-charts { grid-template-columns: 1fr; }
  .tab { padding: 10px 11px; font-size: 12px; }
}

/* ── 装车发运单（打印用） ──────────────────────── */
.dispatch-print { display: none; }   /* 平时隐藏，仅打印时显示 */
.ds-sheet {
  border: 2px solid #1f3a5f;
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
  page-break-inside: avoid;
}
.ds-head {
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 2px solid #1f3a5f; padding-bottom: 6px; margin-bottom: 8px;
}
.ds-no { font-weight: 700; color: #1f3a5f; }
.ds-veh { font-size: 18px; font-weight: 800; }
.ds-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; margin-bottom: 8px; color: #333; }
.ds-meta b { color: #b45309; }
.ds-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ds-table th, .ds-table td { border: 1px solid #cbd5e1; padding: 5px 8px; text-align: left; }
.ds-table th { background: #f1f5f9; }
.ds-note {
  margin-top: 8px; padding: 6px 10px;
  background: #fffbeb; border-left: 4px solid #f59e0b;
  font-size: 13px; color: #92400e;
}
.ds-cut { border: none; border-top: 1px dashed #94a3b8; margin: 10px 0; }

/* ── 打印：仅输出发运单 ─────────────────────────── */
@media print {
  body > *:not(#dispatchPrintArea) { display: none !important; }
  #dispatchPrintArea { display: block !important; margin: 0; padding: 0; }
  .ds-sheet { box-shadow: none; }
}

/* ── 移动端增强（工人现场用手机） ───────────────── */
@media (max-width: 640px) {
  .step-bar { flex-wrap: wrap; gap: 6px; }
  .step { flex: 1 1 42%; justify-content: flex-start; padding: 8px 10px; }
  .step-text { font-size: 12px; }
  .card { padding: 12px; }
  .result-actions { flex-direction: column; align-items: flex-start; gap: 6px; }
  .btn-print { width: 100%; }
  .kpi-bar { grid-template-columns: repeat(2, 1fr); }
  .result-card-title { font-size: 14px; }
  .markdown-body table, .ds-table { display: block; overflow-x: auto; white-space: nowrap; }
  .table-wrap { overflow-x: auto; }
  .btn, .btn-primary, .btn-outline { padding: 12px 14px; font-size: 14px; }
  input, select, textarea { font-size: 16px; padding: 10px; }
  .row { flex-direction: column; }
  .chat-box { height: 60vh; }
}

/* ═══════════ 微交互 & 设计系统工具 ═══════════ */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes bubbleIn { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }

/* 首页 Hero 卡 */
.ov-hero {
  background: linear-gradient(135deg, #ffffff 0%, #eef4ff 60%, #e8f0ff 100%);
  border-color: #d8e3fb;
}
.ov-hero h3 { color: var(--primary-700); }

/* KPI 数字 */
.kpi {
  background: linear-gradient(135deg, #f8fafc 0%, #eef3fb 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 12px; text-align: center;
  transition: box-shadow var(--trans), transform var(--trans);
}
.kpi:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.kpi-num { font-size: 24px; font-weight: 800; color: var(--primary); font-variant-numeric: tabular-nums; letter-spacing: .5px; }
.kpi-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

/* 场景切换卡 hover */
.scenario-tab { transition: border-color var(--trans), background var(--trans), box-shadow var(--trans); }
.scenario-tab:hover { box-shadow: var(--shadow-xs); border-color: var(--border-strong); }

/* 聊天气泡入场 */
.chat-msg { animation: bubbleIn .28s var(--ease) both; }

/* 骨架/加载占位 */
.skeleton {
  background: linear-gradient(90deg, #eef1f6 25%, #e2e7ef 37%, #eef1f6 63%);
  background-size: 400% 100%;
  animation: shimmer 1.3s ease-in-out infinite;
  border-radius: 6px; height: 14px; margin: 6px 0;
}
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: -100% 0; } }

/* 空状态 */
.empty-state {
  text-align: center; padding: 28px 16px; color: var(--text-mute);
  border: 1px dashed var(--border-strong); border-radius: var(--radius); background: #fbfcfe;
}
.empty-state .es-emoji { font-size: 30px; display: block; margin-bottom: 8px; }
.empty-state .es-tip { font-size: 13px; color: var(--text-dim); margin-top: 6px; }

/* 概览洞察入场 */
.ov-insight { animation: fadeUp .4s var(--ease) both; }

/* 概览统计卡 */
.ov-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.ov-card {
  background: linear-gradient(135deg, #ffffff 0%, #f3f7ff 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 14px; text-align: center;
  transition: box-shadow var(--trans), transform var(--trans);
}
.ov-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ov-num { font-size: 30px; font-weight: 800; color: var(--primary); font-variant-numeric: tabular-nums; }
.ov-label { font-size: 12.5px; color: var(--text-dim); margin-top: 4px; }

/* 特性卡片 */
.ov-feat { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.ov-feat-item {
  background: #f8fafc; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; font-size: 13px; line-height: 1.6;
  transition: background var(--trans), border-color var(--trans);
}
.ov-feat-item:hover { background: #fff; border-color: var(--border-strong); }
.ov-feat-item b { color: #16202c; }

/* 标签统一样式（概览/结果通用） */
.bar-tag { font-size: 10.5px; }

/* ═══════════ 首页 Landing ═══════════ */
body.show-landing { overflow: hidden; }
body.show-landing .topbar,
body.show-landing .tabs,
body.show-landing .tab-content { display: none !important; }

#landing {
  display: none;
  position: fixed; inset: 0; z-index: 100;
  flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(59,130,246,.14) 0%, transparent 32%),
    radial-gradient(circle at 12% 58%, rgba(249,115,22,.10) 0%, transparent 30%),
    linear-gradient(180deg, #f6f9ff 0%, #eef4ff 40%, var(--bg) 100%);
}
#landing::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(29,78,216,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29,78,216,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
body.show-landing #landing { display: flex; }

.landing-nav {
  position: sticky; top: 0; z-index: 55;
  background: linear-gradient(135deg, var(--primary) 0%, #2563eb 55%, #3b82f6 100%);
  color: #fff; padding: 12px 20px;
  box-shadow: 0 2px 16px rgba(29,78,216,.28);
  backdrop-filter: blur(6px);
}
.landing-nav-inner { max-width: 1140px; margin: 0 auto; display: flex; align-items: center; gap: 12px; }
.landing-nav .logo { font-size: 20px; font-weight: 800; }
.landing-nav .subtitle { color: rgba(255,255,255,.85); font-size: 13px; }
.landing-nav-actions { margin-left: auto; display: flex; gap: 10px; }
.btn-ghost-light { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.5); color: #fff; border-radius: 999px; padding: 7px 14px; font-size: 13px; }
.btn-ghost-light:hover { background: rgba(255,255,255,.26); }

.landing-hero {
  position: relative;
  max-width: 1140px; width: 100%; margin: 0 auto; padding: 52px 24px 44px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
}
.landing-hero-text { position: relative; z-index: 2; }
.landing-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(249,115,22,.10); color: var(--accent);
  font-size: 12.5px; font-weight: 700; padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
  border: 1px solid rgba(249,115,22,.18);
}
.landing-title { font-size: 42px; line-height: 1.18; font-weight: 900; color: #0f172a; letter-spacing: -.5px; }
.landing-title .accent { color: var(--primary); }
.landing-sub { margin-top: 18px; font-size: 15.5px; line-height: 1.85; color: var(--text-dim); max-width: 520px; }
.landing-cta { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.landing-cta .btn-lg { padding: 13px 26px; font-size: 15px; border-radius: 999px; }
.landing-cta .btn-outline { border: 1.5px solid var(--border-strong); color: var(--text); background: #fff; }
.landing-cta .btn-outline:hover { border-color: var(--primary); color: var(--primary); background: #f6f9ff; }
.landing-note { margin-top: 18px; font-size: 12.5px; color: var(--text-mute); }

.landing-hero-visual {
  position: relative; z-index: 2;
  display: flex; justify-content: center; align-items: center;
}
.truck-svg {
  width: 100%; max-width: 260px; height: auto;
  filter: drop-shadow(0 18px 32px rgba(29,78,216,.18));
  transform: translateY(0);
  transition: transform .6s var(--ease);
}
.truck-svg:hover { transform: translateY(-6px); }

/* Hero 装饰 */
.landing-hero-visual::before {
  content: ''; position: absolute; inset: -30px -20px;
  background: radial-gradient(circle at 50% 50%, rgba(59,130,246,.10), transparent 60%);
  z-index: -1;
}
.landing-hero-visual::after {
  content: ''; position: absolute; width: 220px; height: 220px;
  right: 0; top: 50%; transform: translateY(-50%);
  border: 2px dashed rgba(59,130,246,.18); border-radius: 50%;
  z-index: -2; animation: spin 40s linear infinite;
}
@keyframes spin { from { transform: translateY(-50%) rotate(0deg); } to { transform: translateY(-50%) rotate(360deg); } }

.landing-feats {
  position: relative; z-index: 2;
  max-width: 1140px; width: 100%; margin: 0 auto; padding: 36px 24px 56px;
}
.landing-feats-title { text-align: center; font-size: 24px; font-weight: 900; color: #0f172a; margin-bottom: 8px; }
.landing-feats-sub { text-align: center; font-size: 14px; color: var(--text-mute); margin-bottom: 32px; }
.landing-feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.landing-feat {
  background: rgba(255,255,255,.86);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--trans), transform var(--trans), border-color var(--trans), background var(--trans);
  backdrop-filter: blur(4px);
}
.landing-feat:hover { box-shadow: var(--shadow-md); transform: translateY(-5px); border-color: var(--primary-light); background: #fff; }
.lf-ico {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(59,130,246,.12) 100%);
  box-shadow: 0 4px 10px rgba(29,78,216,.10);
}
.landing-feat b { display: block; font-size: 16px; color: #0f172a; margin-bottom: 8px; }
.landing-feat span { font-size: 13px; color: var(--text-dim); line-height: 1.65; }

.landing-footer { margin-top: auto; text-align: center; padding: 22px; font-size: 12.5px; color: var(--text-mute); border-top: 1px solid rgba(29,78,216,.08); background: rgba(255,255,255,.5); }

@media (max-width: 860px) {
  .landing-hero { grid-template-columns: 1fr; text-align: center; padding: 36px 20px 32px; gap: 28px; }
  .landing-sub { margin-left: auto; margin-right: auto; }
  .landing-cta { justify-content: center; }
  .landing-feat-grid { grid-template-columns: 1fr 1fr; }
  .truck-svg { max-width: 220px; }
}
@media (max-width: 560px) {
  .landing-feat-grid { grid-template-columns: 1fr; }
  .landing-title { font-size: 32px; }
  .landing-nav .subtitle { display: none; }
}

/* ═══════════ 顶栏用户区 ═══════════ */
.user-box { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.ub-btn { background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.45); color: #fff; font-size: 12.5px; padding: 6px 12px; border-radius: 999px; cursor: pointer; transition: background var(--trans); }
.ub-btn:hover { background: rgba(255,255,255,.3); }
.ub-primary { background: var(--accent); border-color: var(--accent); }
.ub-primary:hover { background: #ea670c; }
.ub-user { color: #fff; font-size: 13px; font-weight: 600; }

/* ═══════════ 账号弹窗 ═══════════ */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.5); display: flex; align-items: center; justify-content: center; z-index: 200; padding: 16px; animation: fadeUp .2s var(--ease) both; }
.modal { background: #fff; border-radius: var(--radius-lg); max-width: 380px; width: 100%; padding: 24px; position: relative; box-shadow: var(--shadow-lg); animation: fadeUp .25s var(--ease) both; }
.modal-close { position: absolute; top: 12px; right: 14px; border: none; background: none; font-size: 24px; line-height: 1; color: var(--text-mute); cursor: pointer; }
.modal-close:hover { color: var(--text); }
.auth-modal h3 { font-size: 18px; margin-bottom: 14px; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.auth-tab { flex: 1; padding: 8px; border: 1px solid var(--border); background: #f8fafc; border-radius: var(--radius-sm); cursor: pointer; font-size: 14px; color: var(--text-dim); transition: all var(--trans); }
.auth-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 600; }
.auth-body label { display: block; font-size: 13px; color: var(--text-dim); margin: 10px 0 4px; }
.auth-body input { width: 100%; padding: 10px 12px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); font-size: 14px; }
.auth-body input:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
.auth-err { color: var(--danger); font-size: 13px; min-height: 18px; margin: 8px 0 0; }
.auth-body .btn-lg { width: 100%; margin-top: 12px; }
.auth-tip { font-size: 12px; color: var(--text-mute); line-height: 1.6; margin-top: 12px; }

@media (max-width: 760px) {
  .landing-hero { grid-template-columns: 1fr; padding-top: 32px; }
  .landing-title { font-size: 30px; }
  .landing-hero-visual { order: -1; }
  .landing-feat-grid { grid-template-columns: 1fr; }
  .truck-svg { max-width: 260px; }
}


/* ═══════════ 小灵通智能体·思考链 ═══════════ */
.agent-think { background: linear-gradient(135deg, #eef3ff 0%, #f7faff 100%); border: 1px solid var(--primary-light); }
.think-title { font-weight: 700; color: var(--primary); margin-bottom: 8px; font-size: 13.5px; }
.think-steps { display: flex; flex-direction: column; gap: 6px; }
.think-step { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim);
  padding: 4px 8px; border-radius: 8px; background: rgba(255,255,255,.6);
  animation: stepIn .28s ease both; }
.think-step .ts-ico { font-size: 13px; }
.think-step.done { color: #1f6f3f; }
.think-step.error { color: #b42318; background: #fff1f0; }
@keyframes stepIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }