/* ============================================================
   汽车公告检索平台 — 设计系统 v2
   （浅色 / 暗色 双主题，CSS 变量驱动）
   ============================================================ */
:root {
  /* 主题色 */
  --primary: #4d6bfe;
  --primary-strong: #3a65c2;
  --primary-soft: #eaf3ff;
  --accent: #6799fe;
  --ok: #16a34a;
  --warn: #d97706;

  /* 表面与文字 */
  --bg: #f9f8f8;
  --surface: #ffffff;
  --surface-2: #f7f8fa;
  --surface-3: #fbfbfb;
  --border: #e1e5ee;
  --border-strong: #cfd3d6;
  --text: #1e232c;
  --text-2: #545557;
  --text-3: #8691a1;

  /* 装饰 */
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .03), 0 1px 3px rgba(15, 23, 42, .04);
  --shadow: 0 0 0 1px #f1f5f9, 0 2px 4px rgba(0,0,0,.04), 0 12px 24px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, .12);
  --focus: 0 0 0 3px rgba(77, 107, 254, .16);
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  color-scheme: light;
}
html[data-theme="dark"] {
  --primary: #5b8def;
  --primary-strong: #4a7de4;
  --primary-soft: #1d3352;
  --accent: #fbbf24;
  --ok: #34d399;

  --bg: #0e1626;
  --surface: #17212f;
  --surface-2: #1c2837;
  --surface-3: #141d2b;
  --border: #26344a;
  --border-strong: #33455f;
  --text: #e5ecf4;
  --text-2: #9db0c6;
  --text-3: #64788f;

  --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 28px rgba(0, 0, 0, .35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, .55);
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "DM Sans", "Inter", "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---------------- 访问验证 ---------------- */
.login-page { min-height: 100vh; background: var(--bg); }
.login-shell {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.login-panel {
  width: min(420px, 100%); padding: 30px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow);
}
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.login-mark {
  width: 46px; height: 46px; display: grid; place-items: center; flex: 0 0 auto;
  border-radius: 10px; background: var(--primary); color: #fff; font-weight: 800; font-size: 15px;
}
.login-brand h1 { font-size: 19px; line-height: 1.35; }
.login-brand p { margin-top: 3px; color: var(--text-2); font-size: 13px; }
.login-panel form > label { display: block; margin-bottom: 7px; color: var(--text-2); font-size: 13px; font-weight: 600; }
.login-panel form > input { width: 100%; height: 42px; margin: 0 0 14px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--text); font-size: 14px; font-family: inherit; }
.login-panel form > input:focus { outline: none; border-color: var(--primary); box-shadow: var(--focus); }
.login-input-row { position: relative; }
.login-input-row input {
  width: 100%; height: 44px; padding: 0 58px 0 12px; border: 1px solid var(--border-strong);
  border-radius: 10px; background: var(--surface); color: var(--text); font: 16px var(--font-mono);
  letter-spacing: 0;
}
.login-input-row input:focus { outline: none; border-color: var(--primary); box-shadow: var(--focus); }
.login-toggle {
  position: absolute; top: 1px; right: 1px; width: 54px; height: 42px; border: 0;
  background: transparent; color: var(--text-2); cursor: pointer; font-size: 12px;
}
.login-toggle:hover { color: var(--primary); }
.login-error { min-height: 22px; padding-top: 6px; color: #dc2626; font-size: 12px; }
.login-submit { width: 100%; height: 42px; justify-content: center; margin-top: 5px; }
::selection { background: rgba(37, 99, 235, .22); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------------- 线条式 SVG 图标规范 ---------------- */
.ico-svg { display: block; flex-shrink: 0; }
.brand .logo svg { width: 22px; height: 22px; color: #fff; }
.icon-btn svg { width: 17px; height: 17px; }
.btn svg { width: 15px; height: 15px; }
.btn-lg svg { width: 17px; height: 17px; }
.kpi .ico svg { width: 22px; height: 22px; }
.kpi .ico { color: var(--primary); }
.kpi .ico.amber { color: var(--warn); }
.kpi .ico.green { color: var(--ok); }
.kpi .ico.violet { color: #8b5cf6; }
.tabbtn svg { width: 15px; height: 15px; }
.empty-art { color: var(--primary); opacity: .9; margin-bottom: 10px; }

/* ---------------- 顶栏 ---------------- */
header#topbar {
  position: sticky; top: 0; z-index: 80;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
#topbar .brand { display: none; }
#topbar .head-actions { margin-left: auto; }
#topbar .sidebar-mobile-open { display: none; }
.topbar-context { color: var(--text); font-size: 14px; font-weight: 650; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand .logo {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: 11px;
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  background: linear-gradient(135deg, #4d6bfe, #6799fe);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 4px 10px rgba(77, 107, 254, .2);
}
html[data-theme="dark"] .brand .logo { background: linear-gradient(135deg, #3a65c2, #6799fe); }
.brand .name { font-size: 17px; font-weight: 800; letter-spacing: .5px; line-height: 1.2; }
.brand .tag {
  font-size: 11px; color: var(--text-3); display: block; letter-spacing: 1px;
}
.head-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.icon-btn {
  width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  border-radius: 9px; cursor: pointer; font-size: 15px; transition: all .15s;
}
.icon-btn:hover { background: var(--surface-2); color: var(--primary); border-color: var(--border-strong); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  padding: 7px 15px; border-radius: 9px; cursor: pointer; font-size: 13px; font-weight: 500;
  transition: background .15s, border-color .15s, box-shadow .15s, transform .05s;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-2); border-color: var(--primary); color: var(--primary); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(180deg, #6799fe, #4d6bfe);
  border-color: #4d6bfe; color: #fff;
  box-shadow: 0 4px 12px rgba(77, 107, 254, .22);
}
.btn-primary:hover { background: linear-gradient(180deg, #5b7cff, #3a65c2); color: #fff; box-shadow: 0 6px 16px rgba(77, 107, 254, .28); }
.btn-lg { padding: 9px 34px; font-size: 14px; font-weight: 600; border-radius: 10px; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); border-color: transparent; }
.btn-close { border: none; background: transparent; font-size: 22px; padding: 0 8px; color: var(--text-3); }
.btn-close:hover { color: #ef4444; background: transparent; }
:focus-visible { outline: none; box-shadow: var(--focus); }

/* ---------------- KPI 卡片条 ---------------- */
.kpi-row {
  max-width: 1500px; margin: 20px auto 0; padding: 0 14px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px;
}
.kpi {
  display: flex; align-items: center; gap: 13px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: transform .15s, box-shadow .15s;
}
.kpi:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.kpi .ico {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 19px;
  background: var(--primary-soft);
}
.kpi .ico.amber { background: rgba(245, 158, 11, .13); }
.kpi .ico.green { background: rgba(22, 163, 74, .12); }
.kpi .ico.violet { background: rgba(139, 92, 246, .12); }
.kpi .t { font-size: 12px; color: var(--text-2); }
.kpi .n { font-size: 21px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: .3px; line-height: 1.2; }
.kpi .u { font-size: 11px; color: var(--text-3); }

/* ---------------- 分段页签 ---------------- */
.tabs-wrap {
  max-width: 1500px; margin: 20px auto -12px; padding: 0 14px;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.tabs {
  display: inline-flex; gap: 3px; padding: 4px;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px;
}
.tabbtn {
  border: none; background: transparent; color: var(--text-2);
  padding: 7px 20px; border-radius: 8px; cursor: pointer;
  font-size: 13px; font-weight: 600; transition: all .15s;
}
.tabbtn:hover { color: var(--text); }
.tabbtn.cur { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); }
.tabs-meta { color: var(--text-3); font-size: 12px; }

/* ---------------- 卡片 ---------------- */
.card {
  max-width: 1500px; margin: 18px auto 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px;
  border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.card-head .ttl { font-size: 13px; font-weight: 700; color: var(--text); letter-spacing: 1px; }
.card-head .desc { font-size: 12px; color: var(--text-3); }
.card-head .spacer { flex: 1; }
.card-body { padding: 16px 18px 6px; }

/* ---------------- 查询表单 ---------------- */
.card-head .fold-btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--text-2);
  border-radius: 7px; padding: 3px 10px; font-size: 12px; cursor: pointer;
}
.card-head .fold-btn:hover { color: var(--primary); border-color: var(--primary); }
#query-panel.folded .card-body { display: none; }

/* 页面标题已由顶栏统一呈现；工作区卡片只保留内容和必要的收起控件。 */
#search-box-chassis > .card-head,
#tax-panel > .card-head,
#tender-panel > .card-head,
#competitive-panel > .card-head { display: none; }
#query-panel > .card-head {
  justify-content: flex-end; padding: 6px 18px 0; border-bottom: 0; background: transparent;
}
#query-panel > .card-head .ttl,
#query-panel > .card-head .desc,
#query-panel > .card-head .spacer { display: none; }

.group { padding: 4px 0 14px; }
.group + .group { border-top: 1px dashed var(--border); }
.group-title {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--text); font-size: 12.5px; letter-spacing: 2.5px;
  margin: 10px 0 12px; cursor: pointer; user-select: none;
  text-transform: uppercase;
}
.group-title::before {
  content: ""; width: 4px; height: 14px; border-radius: 3px;
  background: linear-gradient(180deg, #6799fe, #4d6bfe);
}
.group-title .arrow { margin-left: auto; color: var(--text-3); font-size: 11px; transition: transform .18s; }
.group.closed .arrow { transform: rotate(-90deg); }
.group.closed .group-field { display: none; }
.group-field { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 12px 20px; }
.field { display: flex; align-items: center; gap: 8px; min-width: 0; }
.field > label { color: var(--text-2); font-size: 13px; white-space: nowrap; flex-shrink: 0; min-width: 66px; text-align: right; }
.field > label::after { content: ""; }
.field input, .field select {
  border: 1px solid var(--border-strong); border-radius: 10px; padding: 7px 10px;
  font-size: 13px; width: 100%; min-width: 0; flex: 1; background: var(--surface); color: var(--text);
  transition: border-color .12s, box-shadow .12s;
}
.field input.num { max-width: 90px; flex: 1 1 60px; }
.field input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 2px rgba(210, 52, 52, .12); }
.field input:hover, .field select:hover { border-color: var(--primary); }
.field input:focus, .field select:focus {
  outline: none; border-color: var(--primary); box-shadow: var(--focus);
}
.field .range-sep { color: var(--text-3); font-size: 12px; }
.checks { display: inline-flex; gap: 16px; align-items: center; flex-wrap: wrap; min-width: 0; }
.chk {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font-size: 13px;
  color: var(--text); user-select: none; padding: 4px 8px; border-radius: 7px;
}
.chk:hover { background: var(--surface-2); }
.chk input { accent-color: var(--primary); width: 15px; height: 15px; margin: 0; }
.search-actions {
  display: flex; align-items: center; gap: 10px; padding: 10px 0 18px; flex-wrap: wrap;
}
.hint { color: var(--text-3); font-size: 12px; }

/* ---------------- 结果区 ---------------- */
#result-box { margin-bottom: 44px; }
.result-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 11px 18px; border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.result-bar:last-child { border-bottom: none; background: var(--surface); }
.res-info { font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.res-info b { color: var(--primary); }
.res-sub { color: var(--text-3); font-size: 12px; }
.tag {
  background: var(--primary-soft); color: var(--primary); padding: 3px 12px;
  border-radius: 999px; font-size: 12px; font-weight: 600;
}
.tag.green { background: rgba(22, 163, 74, .12); color: var(--ok); }
.tag.amber { background: rgba(245, 158, 11, .15); color: var(--warn); }
.pages { margin-left: auto; display: flex; gap: 5px; align-items: center; flex-wrap: wrap; }
.pages button {
  min-width: 30px; height: 29px; border: 1px solid var(--border); background: var(--surface);
  border-radius: 7px; cursor: pointer; font-size: 12px; color: var(--text-2);
  transition: all .12s; font-variant-numeric: tabular-nums;
}
.pages button:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.pages button.cur { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }
.pages button:disabled { opacity: .4; cursor: default; }
.pages span { padding: 0 5px; color: var(--text-3); font-size: 12px; }
select.page-size {
  border: 1px solid var(--border); border-radius: 7px; padding: 5px 8px;
  font-size: 12px; color: var(--text-2); background: var(--surface); cursor: pointer;
}
select.page-size:hover { border-color: var(--primary); }

.table-wrap { overflow: auto; max-height: calc(100vh - 320px); }
table#grid { border-collapse: separate; border-spacing: 0; width: 100%; white-space: nowrap; }
#grid th {
  background: var(--surface-2); color: var(--text-2); font-weight: 600; font-size: 12px;
  padding: 10px 13px; border-bottom: 1px solid var(--border); text-align: right; letter-spacing: .3px;
  position: sticky; top: 0; z-index: 5;
}
#grid th.l { text-align: left; }
#grid th.sortable { cursor: pointer; user-select: none; }
#grid th.sortable:hover { color: var(--primary); }
#grid th .sort-ind { color: var(--primary); font-size: 10px; margin-left: 4px; }
#grid td {
  padding: 9px 13px; border-bottom: 1px solid var(--border); font-size: 13px;
  max-width: 430px; overflow: hidden; text-overflow: ellipsis;
  font-variant-numeric: tabular-nums; text-align: right;
}
#grid td.l { text-align: left; }
#grid td.cell-main { font-weight: 600; color: var(--primary); }
#grid tbody tr { transition: background .1s; }
#grid tbody tr:nth-child(even) { background: var(--surface-3); }
#grid tbody tr:hover { background: var(--primary-soft); cursor: pointer; }
#grid tbody tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block; border-radius: 999px; padding: 1.5px 10px; font-size: 12px; font-weight: 600;
}
.badge.ok { background: rgba(22, 163, 74, .12); color: var(--ok); }
.badge.ok-line { background: var(--ok); color: #fff; }
.badge.no { background: var(--surface-2); color: var(--text-3); }
.badge.tax-active { background: rgba(22, 163, 74, .13); color: var(--ok); }
.badge.tax-review { background: rgba(245, 158, 11, .16); color: var(--warn); }
.badge.tax-revoked { background: rgba(220, 38, 38, .13); color: #dc2626; }
.tax-car-link {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 11px 14px; margin-bottom: 8px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface-2); color: var(--text); cursor: pointer; text-align: left;
}
.tax-car-link:hover { border-color: var(--primary); background: var(--primary-soft); }
.tax-car-link b { color: var(--primary); font-size: 13px; }
.tax-car-link span { color: var(--text-2); font-size: 12px; text-align: right; }
.empty-inline { padding: 14px; color: var(--text-3); border: 1px dashed var(--border); border-radius: 8px; }
.empty-tip { color: var(--text-2); text-align: center; padding: 46px 16px; }
.empty-tip .big { font-size: 40px; display: block; margin-bottom: 10px; opacity: .85; }

/* ---------------- 加载浮层 ---------------- */
#loading-mask {
  position: fixed; inset: 0; z-index: 200; display: none;
  align-items: center; justify-content: center; flex-direction: column; gap: 16px;
  background: rgba(15, 23, 42, .5);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  backdrop-filter: blur(3px);
}
#loading-mask.on { display: flex; }
.background-job-indicator { display: none; align-items: center; gap: 7px; padding: 5px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--primary-soft); color: var(--primary-strong); font-size: 12px; white-space: nowrap; }
.background-job-indicator.on { display: inline-flex; }
.background-job-indicator .job-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); animation: job-pulse 1.2s ease-in-out infinite; }
.background-job-indicator.done { background: rgba(22,163,74,.10); color: var(--ok); }
.background-job-indicator.done .job-dot { background: var(--ok); animation: none; }
@keyframes job-pulse { 50% { opacity: .35; transform: scale(.75); } }
.spinner {
  width: 44px; height: 44px;
  border: 3px solid color-mix(in srgb, var(--primary) 25%, transparent);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin .8s linear infinite;
}
#loading-mask .loading-text { color: var(--text-2); font-size: 14px; letter-spacing: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------- Toast ---------------- */
#toast-box {
  position: fixed; top: 72px; right: 20px; z-index: 300;
  display: flex; flex-direction: column; gap: 8px; max-width: 360px;
}
.toast {
  display: flex; gap: 9px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--primary);
  border-radius: 10px; box-shadow: var(--shadow-lg); padding: 11px 15px;
  font-size: 13px; animation: toast-in .25s ease;
}
.toast .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-top: 5px; flex-shrink: 0; }
.toast.ok .dot { background: var(--ok); }
.toast.warn .dot { background: var(--warn); }
.toast.ok { border-left-color: var(--ok); }
.toast.warn { border-left-color: var(--warn); }
.toast.out { animation: toast-out .3s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateX(28px); } }

/* ---------------- 弹层（规格书风格） ---------------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(10, 18, 32, .55); z-index: 150;
  display: flex; align-items: flex-start; justify-content: center;
  overflow: auto; padding: 46px 16px 64px; backdrop-filter: blur(4px);
}
.modal {
  background: var(--surface); border-radius: 16px; width: min(1160px, 100%);
  box-shadow: var(--shadow-lg); max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
  animation: modal-in .22s ease;
}
.modal.small { width: min(680px, 100%); }
@keyframes modal-in { from { opacity: 0; transform: translateY(16px) scale(.99); } to { opacity: 1; transform: none; } }
.modal-head {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 16px 22px; border-bottom: 1px solid var(--border);
  background: var(--surface-2); flex-shrink: 0;
}
.modal-head .mt {
  font-size: 15px; font-weight: 800; color: var(--text);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.modal-head .mt .badge-wrap { display: inline-flex; gap: 6px; }
.modal-body { padding: 20px 22px; overflow: auto; }

.car-detail h2 {
  font-size: 13px; color: var(--primary); margin: 24px 0 10px;
  display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: 1px;
}
.car-detail h2::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.car-detail h2:first-child { margin-top: 0; }
.kv {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
  gap: 0; background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden;
}
.kv .item {
  display: flex; gap: 12px; padding: 9px 14px; min-width: 0;
  border-bottom: 1px solid var(--border); border-right: 1px solid var(--border);
}
.kv .item:nth-child(odd) { background: var(--surface-3); }
.kv .item .k { color: var(--text-3); min-width: 96px; flex-shrink: 0; font-size: 12.5px; }
.kv .item .v { word-break: break-all; white-space: normal; font-weight: 500; font-variant-numeric: tabular-nums; }
.chassis-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin-bottom: 10px;
  background: var(--surface-2);
}
.chassis-card .ch-title { font-weight: 700; color: var(--primary); margin-bottom: 10px; font-size: 13px; display: flex; align-items: center; gap: 8px; }
.chassis-card .ch-title::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }

/* ---------------- 收藏/历史列表 ---------------- */
.list-item {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  border: 1px solid var(--border); border-radius: 11px; padding: 12px 14px; margin-bottom: 9px;
  background: var(--surface-2); transition: border-color .12s;
}
.list-item:hover { border-color: var(--primary); }
.list-item .li-main { font-weight: 700; font-variant-numeric: tabular-nums; }
.list-item .li-sub { color: var(--text-2); font-size: 12px; margin-left: 8px; }
.list-item .li-actions { display: flex; gap: 6px; flex-shrink: 0; }
.settings-section { padding: 4px 0 16px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.settings-section:last-child { border-bottom: 0; margin-bottom: 0; }
.settings-section h3 { margin-bottom: 10px; color: var(--text); font-size: 14px; }
.settings-meta { display: flex; justify-content: space-between; gap: 12px; padding: 5px 0; color: var(--text-2); font-size: 13px; }
.settings-meta b { color: var(--text); font-weight: 600; }
.settings-history-summary { color: var(--text-2); font-size: 13px; line-height: 1.8; }
.settings-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; }
.settings-field { display: block; min-width: 0; color: var(--text-2); font-size: 12px; line-height: 1.4; }
.settings-field input { display: block; box-sizing: border-box; width: 100%; margin-top: 6px; padding: 9px 10px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface); color: var(--text); font: inherit; transition: border-color .15s, box-shadow .15s; }
.settings-field input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.settings-hint, .settings-required { color: var(--text-3); font-size: 11px; }
.settings-required { color: var(--primary); }
.settings-form .admin-dialog-actions { display: flex; grid-column: 1 / -1; justify-content: flex-end; padding-top: 2px; }
@media (max-width: 560px) {
  .settings-form { grid-template-columns: 1fr; gap: 10px; }
  .settings-form .admin-dialog-actions { grid-column: auto; }
}

/* ---------------- 招标比对 ---------------- */
.dropzone {
  border: 2px dashed var(--border-strong); border-radius: 14px;
  padding: 34px 16px; text-align: center; cursor: pointer;
  color: var(--text-3); transition: all .15s; background: var(--surface-2);
}
.dropzone:hover, .dropzone.over { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.dropzone svg { width: 34px; height: 34px; margin-bottom: 8px; }
.dropzone .dz-title { font-size: 15px; font-weight: 700; color: var(--text); }
.dropzone.over .dz-title { color: var(--primary); }
.dropzone .dz-sub { font-size: 12px; margin-top: 4px; }
.tender-info {
  margin-top: 12px; padding: 10px 14px; border-radius: 10px;
  background: var(--primary-soft); color: var(--text); font-size: 13px;
}
.tender-info b { color: var(--primary); }
.req-toolbar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 12px;
}
.req-toolbar .field input { width: 260px; }
table.reqtable {
  width: 100%; border-collapse: separate; border-spacing: 0;
  border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
}
.reqtable th {
  background: var(--surface-2); color: var(--text-2); font-weight: 600; font-size: 12px;
  padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: center;
}
.reqtable td {
  padding: 7px 10px; border-bottom: 1px solid var(--border); font-size: 13px;
  vertical-align: middle;
}
.reqtable tr:last-child td { border-bottom: none; }
.reqtable tbody tr:nth-child(even) { background: var(--surface-3); }
.reqtable .tv {
  border: 1px solid var(--border-strong); border-radius: 7px; padding: 5px 8px;
  font-size: 13px; width: 100%; background: var(--surface); color: var(--text);
}
.reqtable .tv.sel { width: 100%; }
.reqtable .tv.num { width: 110px; }
.reqtable .req-unit { color: var(--text-3); font-size: 12px; }
.btn-sm { padding: 3px 10px; font-size: 12px; border-radius: 7px; }
.tender-summary {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px;
}
.sub-h {
  font-size: 13px; color: var(--primary); font-weight: 700; letter-spacing: 1px;
  margin: 16px 0 8px; display: flex; align-items: center; gap: 8px;
}
.sub-h::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.rate-bar {
  display: inline-block; width: 130px; height: 9px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border); vertical-align: middle; overflow: hidden;
}
.rate-bar .fill { display: block; height: 100%; background: linear-gradient(90deg, #34d399, #16a34a); border-radius: 6px; }
html[data-theme="dark"] .rate-bar .fill { background: linear-gradient(90deg, #34d399, #10b981); }
.rate-num { margin-left: 8px; font-weight: 700; color: var(--text); font-size: 12px; }
.rate-badge {
  display: inline-block; min-width: 52px; border-radius: 999px; padding: 2px 10px;
  font-size: 12px; font-weight: 800; color: #fff;
}
.rate-badge.full { background: var(--ok); }
.rate-badge.high { background: #0ea5e9; }
.rate-badge.low { background: #f59e0b; }
#tend-res .tend-row { cursor: pointer; }
#tend-res .tend-row:hover { background: var(--primary-soft) !important; }
.c-met { color: var(--ok); font-weight: 700; }
.c-unmet { color: #ef4444; font-weight: 700; }
.c-nodata { color: var(--text-3); }
.tend-detail-box { display: flex; flex-direction: column; gap: 5px; padding: 2px 4px; }
.tend-d {
  display: grid; grid-template-columns: 64px minmax(180px, 1fr) minmax(120px, 2fr);
  gap: 10px; align-items: center; padding: 6px 8px; border-radius: 8px; font-size: 13px;
}
.st {
  display: inline-block; border-radius: 999px; padding: 1px 10px; font-size: 12px; font-weight: 700; text-align: center;
}
.st-met { background: rgba(22, 163, 74, .14); color: var(--ok); }
.st-unmet { background: rgba(239, 68, 68, .13); color: #ef4444; }
.st-nodata { background: var(--surface-2); color: var(--text-3); }
.tend-d .t { font-weight: 600; }
.tend-d .a { color: var(--text-2); word-break: break-all; white-space: normal; }

.src-badge {
  display: inline-block; vertical-align: middle; margin-right: 4px;
  border-radius: 5px; padding: 0 5px; font-size: 10px; font-weight: 800;
  background: var(--primary-soft); color: var(--primary);
}
.src-badge.src-regex { background: var(--surface-2); color: var(--text-3); }
.src-badge.src-visual { background: #e8f4ff; color: #1769aa; }
.diag-box {
  margin: 4px 0 10px; padding: 9px 12px; border-radius: 9px;
  background: #0f1720; color: #e5ecf4; font-family: var(--font-mono); font-size: 12px;
}
html[data-theme="dark"] .diag-box { background: #0b1420; }
.diag-line { padding: 1px 0; word-break: break-all; }
.diag-line.ok { color: #4ade80; }
.diag-line.bad { color: #fda4af; }

/* 多车型组 */
.tgroup-tabs {
  display: flex; align-items: center; gap: 6px; overflow-x: auto;
  padding: 4px 2px 10px; margin-bottom: 10px; border-bottom: 1px solid var(--border);
  scrollbar-width: thin;
}
.tgroup-tab {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--surface-2);
  color: var(--text-2); padding: 7px 13px; font-size: 13px; font-weight: 700; cursor: pointer;
  white-space: nowrap; transition: all .12s;
}
.tgroup-tab:hover { color: var(--primary); border-color: var(--primary); }
.tgroup-tab.cur { color: var(--primary); background: var(--primary-soft); border-color: var(--primary); }
.tgroup-tab-count { font-size: 11px; font-weight: 500; color: var(--text-3); }
.tgroup-tab.cur .tgroup-tab-count { color: var(--primary); }
.tgroup-tab.add-group-tab { border-style: dashed; font-size: 16px; padding-inline: 12px; }
.tgroup {
  border: 1px solid var(--border); border-radius: 12px; margin-bottom: 14px;
  background: var(--surface-2); overflow: hidden;
}
.tgroup-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--surface-3);
}
.tgroup-no {
  font-weight: 800; color: var(--primary); background: var(--primary-soft);
  border-radius: 999px; padding: 2px 12px; font-size: 12px;
}
.tgroup-head .gname { min-width: 200px; }
.tgroup-head .field { min-width: 220px; }
.tgroup-head .field input { width: 100%; }
.tgroup .reqtable { border: none; border-radius: 0; }
.tgroup .reqtable th { background: var(--surface-2); }

/* 矩阵对比 */
.cur-view { background: var(--primary); color: #fff; border-color: var(--primary); }
.cur-view:hover { background: var(--primary-strong) !important; color: #fff !important; }
.matrix-wrap { overflow-x: auto; }
.matrix { min-width: 100%; }
.matrix .m-fix {
  position: sticky; left: 0; z-index: 3; background: var(--surface-2);
  font-weight: 700; text-align: left; min-width: 180px; border-right: 2px solid var(--border-strong);
}
.matrix th.m-vic {
  min-width: 170px; text-align: center; cursor: pointer; font-weight: 700; color: var(--primary);
}
.matrix th.m-vic:hover { background: var(--primary-soft); }
.matrix th.m-vic .m-sub {
  display: block; font-weight: 400; font-size: 11px; color: var(--text-2); margin: 2px 0 4px;
  white-space: normal; max-width: 170px;
}
.matrix td { text-align: center; }
.matrix td.m-fix { text-align: left; font-weight: 600; color: var(--text); }
.matrix td.m-met { background: rgba(22, 163, 74, .10); color: var(--ok); font-weight: 600; }
.matrix td.m-unmet { background: rgba(239, 68, 68, .10); color: #ef4444; font-weight: 600; }
.matrix td.m-nodata { color: var(--text-3); }
html[data-theme="dark"] .matrix th.m-vic:hover { background: var(--primary-soft); }
html[data-theme="dark"] .matrix td.m-met { background: rgba(52, 211, 153, .12); color: #4ade80; }
html[data-theme="dark"] .matrix td.m-unmet { background: rgba(248, 113, 113, .14); color: #fca5a5; }

/* ---------------- 竞争区间分析 ---------------- */
.competitive-picker { display: grid; grid-template-columns: minmax(280px, 420px) 1fr; gap: 14px; align-items: start; }
.picker-search { position: relative; }
.picker-search > input {
  width: 100%; min-height: 38px; border: 1px solid var(--border-strong); border-radius: 8px;
  padding: 8px 11px; background: var(--surface); color: var(--text); font-size: 13px;
}
.picker-search > input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.picker-options {
  position: absolute; z-index: 20; top: calc(100% + 5px); left: 0; right: 0; max-height: 300px;
  overflow: auto; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--surface);
  box-shadow: var(--shadow); padding: 4px;
}
.picker-option {
  display: block; width: 100%; border: none; border-radius: 6px; padding: 8px 9px; text-align: left;
  background: transparent; color: var(--text); cursor: pointer; font-size: 13px;
}
.picker-option:hover { background: var(--primary-soft); }
.picker-option.is-picked { background: var(--primary-soft); box-shadow: inset 3px 0 0 var(--primary); }
.picker-option b { display: block; color: var(--primary); font-size: 13px; }
.picker-option span { display: block; color: var(--text-2); font-size: 11px; margin-top: 2px; white-space: normal; }
.selection-list { display: flex; gap: 7px; flex-wrap: wrap; min-height: 38px; align-content: flex-start; }
.selection-chip {
  display: inline-grid; grid-template-columns: minmax(0, 1fr) 24px; align-items: center; gap: 5px;
  min-height: 38px; max-width: 390px; border: 1px solid var(--border); border-radius: 8px;
  padding: 5px 5px 5px 10px; background: var(--surface-2); color: var(--text); font-size: 12px;
}
.selection-chip b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.selection-chip small { display: block; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.selection-chip button { width: 24px; height: 24px; border: none; background: transparent; color: var(--text-3); cursor: pointer; font-size: 18px; }
.selection-chip button:hover { color: var(--danger); }
.selection-empty { color: var(--text-3); font-size: 12px; padding: 9px 0; }
.competitive-picker > .group-field,
.competitive-picker > .selection-list,
.competitive-picker > .competitive-model-values { grid-column: 1 / -1; }
.comp-name-group { grid-column: 1 / -1; margin-top: 2px; }
.comp-name-group-title { display: flex; align-items: baseline; gap: 8px; margin: 4px 0 7px; color: var(--text); }
.comp-name-group-title span { color: var(--text-3); font-size: 12px; }
.comp-model-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; }
.comp-model-card {
  display: flex; align-items: center; gap: 8px; width: 100%; min-height: 58px; padding: 9px 10px;
  border: 1px solid var(--border); border-radius: 9px; background: var(--surface-2); color: var(--text);
  text-align: left; cursor: pointer;
}
.comp-model-card:hover, .comp-model-card.is-open { border-color: var(--primary); background: var(--primary-soft); }
.comp-model-card-main { min-width: 0; flex: 1; }
.comp-model-card-main b, .comp-model-card-main small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.comp-model-card-main b { color: var(--primary); font-size: 13px; }
.comp-model-card-main small { margin-top: 3px; color: var(--text-2); font-size: 11px; }
.comp-model-card-meta { color: var(--text-2); font-size: 11px; white-space: nowrap; }
.comp-model-card-remove { color: var(--text-3); font-size: 18px; line-height: 1; padding: 2px 3px; }
.comp-model-card-remove:hover { color: var(--danger); }
.competitive-model-values { margin-top: 9px; }
.comp-model-value-card { border: 1px solid var(--border); border-radius: 9px; padding: 10px 12px; background: var(--surface-2); }
.comp-model-value-card > b { display: inline-block; margin-right: 8px; color: var(--primary); }
.comp-model-value-card > .hint { display: inline-block; }
.comp-value-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 9px; margin-top: 9px; }
.comp-value-field { display: flex; flex-direction: column; gap: 4px; color: var(--text-2); font-size: 12px; }
.comp-value-options {
  display: flex; flex-wrap: wrap; gap: 5px; min-height: 34px; max-height: 92px; overflow: auto;
  border: 1px solid var(--border-strong); border-radius: 7px; padding: 5px; background: var(--surface);
}
.comp-value-options label {
  display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--border);
  border-radius: 5px; padding: 3px 6px; background: var(--surface-2); color: var(--text-2); cursor: pointer;
}
.comp-value-options label:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); color: var(--text); }
.comp-value-options input { accent-color: var(--primary); margin: 0; }
.competitive-scope { margin-top: 14px; }
.competitive-fields { display: grid; grid-template-columns: repeat(5, minmax(130px, 1fr)); gap: 7px; }
.competitive-field-group { grid-column: 1 / -1; padding: 8px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface); }
.competitive-field-group-title { display: flex; align-items: center; gap: 8px; margin: 0 0 7px; color: var(--text); font-weight: 700; font-size: 12px; }
.competitive-field-group-title .tag { margin-left: auto; }
.competitive-field-group-list { display: grid; grid-template-columns: repeat(5, minmax(130px, 1fr)); gap: 7px; }
.competitive-field {
  display: flex; align-items: center; gap: 7px; min-height: 34px; padding: 6px 9px;
  border: 1px solid var(--border); border-radius: 7px; background: var(--surface-2); color: var(--text-2); font-size: 12px;
}
.competitive-field:has(input:checked) { border-color: var(--primary); color: var(--text); background: var(--primary-soft); }
.competitive-field input { accent-color: var(--primary); }
.competitive-actions { justify-content: flex-end; margin-top: 14px; }
.competitive-summary { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.competitive-result-tabs { display: flex; gap: 6px; width: 100%; margin-bottom: 3px; }
.comp-final-output {
  border: 2px solid var(--primary); border-radius: 8px; padding: 14px; margin: 10px 0 16px;
  background: var(--surface);
}
.comp-final-output h2 { margin: 0 0 10px; color: var(--primary); font-size: 15px; }
.comp-final-output .reqtable { max-width: 760px; }
.comp-final-output td { text-align: center; }
.comp-operator, .comp-target-value { color: var(--primary); font-size: 16px !important; font-weight: 800; }
.comp-final-note { margin-top: 10px; color: var(--text-2); font-size: 12px; }
.comp-status {
  display: inline-flex; align-items: center; min-height: 28px; border-radius: 7px; padding: 4px 10px;
  font-size: 12px; font-weight: 700;
}
.comp-status.complete { color: var(--ok); background: rgba(22, 163, 74, .12); }
.comp-status.partial { color: #b45309; background: rgba(245, 158, 11, .14); }
.comp-criteria { display: flex; gap: 6px; flex-wrap: wrap; }
.comp-criterion {
  display: inline-block; border: 1px solid var(--primary); border-radius: 6px; padding: 3px 8px;
  background: var(--primary-soft); color: var(--primary); font-size: 12px; font-weight: 700;
}
.comp-best-row td { background: var(--primary-soft) !important; }
.comp-result-table { margin-bottom: 14px; }
.comp-solution-row { cursor: pointer; }
.comp-solution-row:hover { background: var(--primary-soft) !important; }
.comp-evidence-toolbar { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin: 4px 0 9px; }
.comp-evidence-toolbar label { display: inline-flex; align-items: center; gap: 5px; color: var(--text-2); font-size: 12px; }
.comp-evidence-toolbar select { min-height: 30px; border: 1px solid var(--border-strong); border-radius: 6px; padding: 3px 7px; background: var(--surface); color: var(--text); }
.comp-evidence-toolbar .btn { min-height: 29px; padding: 3px 9px; font-size: 12px; }
.comp-result-table td:first-child, .comp-result-table th:first-child { text-align: left; }
.comp-evidence-row { cursor: pointer; }
.comp-evidence-row:hover { background: var(--primary-soft) !important; }
.comp-failed { color: #dc2626; font-weight: 700; }
.comp-unknown { color: #b45309; font-weight: 700; }
.comp-met { color: var(--ok); font-weight: 700; }

/* ---------------- 企业化应用外壳 / 左侧工作区 ---------------- */
body { min-height: 100vh; }
/* 功能入口统一放在左侧导航，数据库概览信息放在管理后台。 */
.kpi-row, .tabs-wrap { display: none !important; }
#app-sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 100; width: 258px;
  display: flex; flex-direction: column; padding: 16px 12px 12px;
  background: #f5f7fb; color: var(--text); border-right: 1px solid var(--border);
  transition: width .2s ease, transform .2s ease;
}
#app-main { min-width: 0; width: calc(100% - 258px); margin-left: 258px; transition: margin-left .2s ease, width .2s ease; }
.sidebar-head { display: flex; align-items: center; gap: 8px; padding: 2px 4px 18px; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.sidebar-logo { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--primary), #6799fe); border: 1px solid rgba(77,107,254,.2); box-shadow: 0 3px 8px rgba(77,107,254,.16); }
.sidebar-logo svg { width: 18px; height: 18px; }
.sidebar-brand-text { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.sidebar-brand-text b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; font-weight: 650; }
.sidebar-brand-text small { color: var(--text-3); font-size: 10px; }
.sidebar-icon-btn { width: 30px; height: 30px; display: grid; place-items: center; border: 0; border-radius: 6px; background: transparent; color: var(--text-2); cursor: pointer; font-size: 20px; }
.sidebar-icon-btn:hover { color: var(--primary); background: var(--primary-soft); }
.sidebar-actions { padding: 0 0 10px; }
.sidebar-new-chat { width: 100%; display: flex; align-items: center; gap: 9px; padding: 10px 11px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--primary-strong); cursor: pointer; font-size: 13px; text-align: left; box-shadow: var(--shadow-sm); }
.sidebar-new-chat:hover { background: var(--primary-soft); border-color: var(--primary); }
.sidebar-new-chat span:first-child { font-size: 18px; line-height: 1; }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav-item, .sidebar-subnav button { width: 100%; display: flex; align-items: center; gap: 10px; padding: 9px 10px; border: 0; border-radius: 7px; background: transparent; color: #55708f; cursor: pointer; font-size: 13px; text-align: left; transition: background .15s, color .15s; }
.sidebar-nav-item:hover, .sidebar-subnav button:hover { background: #eef2ff; color: var(--primary-strong); }
.sidebar-nav-item.active { background: #e4edfd; color: var(--primary-strong); box-shadow: inset 3px 0 0 var(--primary); }
/* 首页对话暂时隐藏入口，功能代码保留，待完善后可恢复。 */
#app-sidebar [data-sidebar-mode="home"],
#sidebar-new-chat,
.sidebar-history-head,
.sidebar-search,
.sidebar-history { display: none; }
.nav-icon { width: 18px; color: #7b96b5; font-size: 17px; text-align: center; }
.sidebar-nav-item:hover .nav-icon, .sidebar-nav-item.active .nav-icon { color: var(--primary); }
.sidebar-subnav { display: none; margin: 2px 0 8px 28px; border-left: 1px solid var(--border-strong); padding-left: 5px; }
.sidebar-subnav.open { display: block; }
.sidebar-subnav button { padding: 6px 8px; font-size: 12px; color: var(--text-2); }
.sidebar-subnav button.active { background: var(--primary-soft); color: var(--primary-strong); }
.sidebar-history-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 13px 8px 6px; color: var(--text-2); font-size: 11px; font-weight: 650; text-transform: uppercase; letter-spacing: .03em; }
.sidebar-history-head button { border: 0; background: transparent; color: var(--text-3); cursor: pointer; font-size: 11px; }
.sidebar-history-head button:hover { color: var(--primary); }
.sidebar-search { display: flex; align-items: center; gap: 7px; padding: 7px 9px; margin: 0 0 7px; border: 1px solid var(--border); border-radius: 7px; background: var(--surface); color: var(--text-2); }
.sidebar-search svg { width: 14px; height: 14px; }
.sidebar-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font-size: 12px; }
.sidebar-search input::placeholder { color: var(--text-3); }
.sidebar-history { min-height: 80px; flex: 1; overflow-y: auto; padding-right: 2px; }
.sidebar-history-empty { padding: 18px 10px; color: var(--text-3); font-size: 12px; line-height: 1.6; }
.sidebar-history-item { display: block; width: 100%; padding: 8px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--text-2); cursor: pointer; text-align: left; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.sidebar-history-item:hover, .sidebar-history-item.active { background: var(--primary-soft); color: var(--primary-strong); }
.sidebar-user { display: flex; align-items: center; gap: 9px; margin-top: auto; padding: 9px 5px 2px; border-top: 1px solid var(--border); }
.sidebar-avatar { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: #bfdbfe; color: var(--primary-strong); font-size: 12px; font-weight: 700; }
.sidebar-user-meta { min-width: 0; flex: 1; display: flex; flex-direction: column; line-height: 1.3; }
.sidebar-user-meta b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); font-size: 12px; font-weight: 600; }
.sidebar-user-meta small { color: var(--text-3); font-size: 10px; }
/* 深色模式保留深蓝层次，避免侧栏在主题切换时变成浅色。 */
html[data-theme="dark"] #app-sidebar { background: #142238; color: var(--text); border-right-color: #263b59; }
html[data-theme="dark"] .sidebar-logo { background: linear-gradient(135deg, #2563eb, #4f8bf8); border-color: rgba(147,197,253,.22); }
html[data-theme="dark"] .sidebar-nav-item, html[data-theme="dark"] .sidebar-subnav button { color: #a9bdd7; }
html[data-theme="dark"] .sidebar-nav-item:hover, html[data-theme="dark"] .sidebar-subnav button:hover { background: #1d3557; color: #e8f1ff; }
html[data-theme="dark"] .sidebar-nav-item.active, html[data-theme="dark"] .sidebar-subnav button.active { background: #1f3d69; color: #dbeafe; }
html[data-theme="dark"] .sidebar-new-chat { background: #1a2f4d; border-color: #38577f; color: #bfdbfe; }
html[data-theme="dark"] .sidebar-new-chat:hover { background: #22436f; border-color: #5b8def; }
html[data-theme="dark"] .sidebar-search { background: #172b45; border-color: #304b70; }
html[data-theme="dark"] .sidebar-avatar { background: #315b91; color: #e0edff; }
html[data-theme="dark"] .sidebar-user { border-top-color: #2a4262; }
body.sidebar-collapsed #app-sidebar { width: 66px; padding-left: 10px; padding-right: 10px; }
body.sidebar-collapsed #app-main { width: calc(100% - 66px); margin-left: 66px; }
body.sidebar-collapsed .sidebar-brand-text, body.sidebar-collapsed .sidebar-new-chat span:last-child, body.sidebar-collapsed .sidebar-nav-item span:last-child, body.sidebar-collapsed .sidebar-subnav, body.sidebar-collapsed .sidebar-history-head, body.sidebar-collapsed .sidebar-search, body.sidebar-collapsed .sidebar-history, body.sidebar-collapsed .sidebar-user-meta { display: none; }
body.sidebar-collapsed .sidebar-head { justify-content: center; }
body.sidebar-collapsed .sidebar-new-chat { justify-content: center; padding: 10px 0; }
body.sidebar-collapsed .sidebar-nav-item { justify-content: center; padding-left: 0; padding-right: 0; }
body.sidebar-collapsed .sidebar-user { justify-content: center; flex-direction: column; gap: 4px; }

/* ---------------- 首页对话 ---------------- */
.chat-panel { min-height: calc(100vh - 82px); max-width: 1040px; margin: 0 auto; padding: 24px 24px 18px; display: flex; flex-direction: column; }
.chat-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 5px 0 20px; }
.chat-title { font-size: 21px; font-weight: 700; letter-spacing: -.01em; }
.chat-subtitle { margin-top: 4px; color: var(--text-2); font-size: 13px; }
.chat-status { padding: 4px 9px; border: 1px solid var(--border); border-radius: 999px; color: var(--text-2); font-size: 11px; }
.chat-messages { flex: 1; min-height: 360px; overflow-y: auto; padding: 12px 0 20px; }
.chat-empty { max-width: 560px; margin: 15vh auto 0; text-align: center; color: var(--text-2); }
.chat-empty h2 { margin-bottom: 8px; color: var(--text); font-size: 22px; }
.chat-empty p { line-height: 1.8; }
.chat-message { display: flex; gap: 11px; margin: 0 auto 18px; max-width: 840px; }
.chat-message.user { justify-content: flex-end; }
.chat-message .chat-avatar { width: 28px; height: 28px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 7px; background: var(--surface-2); color: var(--text-2); font-size: 12px; }
.chat-message.assistant .chat-avatar { background: var(--primary); color: #fff; }
.chat-bubble { max-width: min(760px, 88%); padding: 10px 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); white-space: pre-wrap; word-break: break-word; }
.chat-message.user .chat-bubble { border-color: #dbe7ff; background: var(--primary-soft); }
.chat-composer-wrap { position: sticky; bottom: 0; padding-top: 9px; background: linear-gradient(var(--bg), var(--bg)); }
.chat-composer { display: flex; align-items: flex-end; gap: 8px; padding: 8px; border: 1px solid var(--border-strong); border-radius: 11px; background: var(--surface); box-shadow: var(--shadow-sm); }
.chat-composer textarea { flex: 1; min-height: 26px; max-height: 150px; resize: vertical; border: 0; outline: 0; background: transparent; color: var(--text); font: inherit; line-height: 1.55; }
.chat-tool-btn { width: 30px; height: 30px; flex: 0 0 auto; border: 0; border-radius: 7px; background: transparent; color: var(--text-2); cursor: pointer; font-size: 20px; }
.chat-tool-btn:hover { background: var(--surface-2); color: var(--primary); }
.chat-hint { padding: 7px 4px 0; color: var(--text-3); font-size: 11px; text-align: center; }
.chat-attachments { display: flex; gap: 7px; flex-wrap: wrap; padding-bottom: 7px; }
.chat-attachment { display: inline-flex; align-items: center; gap: 6px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text-2); font-size: 11px; }
.chat-attachment button { border: 0; background: transparent; color: var(--text-3); cursor: pointer; }

@media (max-width: 760px) {
  #app-sidebar { width: 238px; transform: translateX(-100%); box-shadow: var(--shadow-lg); }
  #app-sidebar.mobile-open { transform: translateX(0); }
  #app-main, body.sidebar-collapsed #app-main { width: 100%; margin-left: 0; }
  #topbar .sidebar-mobile-open { display: inline-flex; margin-right: auto; }
  .chat-panel { padding-left: 14px; padding-right: 14px; }
  header#topbar { padding-left: 14px; padding-right: 14px; }
}

/* ---------------- 页脚 ---------------- */
footer {
  display: none;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 980px) {
  .brand .name { font-size: 15px; }
  .head-actions { margin-left: 0; }
  .field { flex-wrap: wrap; }
  .field input, .field select { width: 100%; max-width: none; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  #grid th, #grid td { padding: 8px 10px; font-size: 12px; }
  .competitive-picker { grid-template-columns: 1fr; }
  .competitive-fields { grid-template-columns: repeat(3, minmax(120px, 1fr)); }
  .competitive-field-group-list { grid-template-columns: repeat(3, minmax(120px, 1fr)); }
}
@media (max-width: 560px) {
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .tabs-meta { display: none; }
  .competitive-fields { grid-template-columns: repeat(2, minmax(110px, 1fr)); }
  .competitive-field-group-list { grid-template-columns: repeat(2, minmax(110px, 1fr)); }
}

/* 首页对话暂未开放：连同其历史、新建和搜索入口一并收起，避免与分析历史混淆。 */
#app-sidebar #sidebar-new-chat,
#app-sidebar .sidebar-history-head,
#app-sidebar .sidebar-search,
#app-sidebar #sidebar-history { display: none !important; }