/* ==========================================================
   补天AI · GEO 效果闭环系统 —— 样式表
   设计取向：夜穹底色 + 五色石渐变（青·蓝·紫·赤·金）
             取自「女娲炼五色石以补苍天」，喻品牌在 AI 搜索
             中修补裂痕、重获可见。
   零外部依赖（无字体 CDN、无图标库），图标用 Unicode / 内联 SVG。
   ========================================================== */

:root {
  /* ---------- 夜穹底色 ---------- */
  --bg: #070a12;
  --bg-panel: #0e1320;
  --bg-elevated: #161d2e;
  --bg-hover: #1c2438;
  --border: #232c40;
  --border-strong: #33405a;

  /* ---------- 文字 ---------- */
  --text: #e8eefb;
  --text-dim: #9aa8c0;
  --text-faint: #66738c;

  /* ---------- 五色石 · 主色 ---------- */
  --accent: #5b8cff;        /* 蓝 */
  --accent-dim: #2f5cb8;
  --accent-soft: rgba(91, 140, 255, .12);
  --good: #3ddba4;          /* 青 */
  --warn: #ffb547;          /* 金 */
  --bad: #ff5c7a;           /* 赤 */
  --purple: #b287ff;        /* 紫 */
  --cyan: #4dd9e8;

  /* 五色石渐变：品牌基因，仅用于关键视觉锚点 */
  --grad-stone: linear-gradient(118deg, #5eead4 0%, #60a5fa 27%, #a78bfa 55%, #f472b6 79%, #fbbf24 100%);
  --grad-primary: linear-gradient(135deg, #5b8cff 0%, #8b6bff 58%, #b287ff 100%);
  --grad-soft: linear-gradient(135deg, rgba(91,140,255,.16), rgba(178,135,255,.10));

  /* ---------- 形态 ---------- */
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "HarmonyOS Sans SC",
          "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;

  /* ---------- 层次 ---------- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .32);
  --shadow: 0 4px 16px rgba(0, 0, 0, .38);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, .55);
  --glow-accent: 0 0 0 1px rgba(91, 140, 255, .28), 0 6px 20px rgba(91, 140, 255, .20);
}

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

html { scrollbar-color: var(--border-strong) transparent; }

body {
  /* 夜穹：深底叠三层极淡星云，营造纵深而不干扰读数 */
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 620px at 12% -8%, rgba(91, 140, 255, .13), transparent 62%),
    radial-gradient(900px 560px at 96% 4%, rgba(178, 135, 255, .10), transparent 58%),
    radial-gradient(760px 520px at 50% 112%, rgba(62, 217, 232, .06), transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(91, 140, 255, .32); color: #fff; }

/* 滚动条：深色细轨，减少视觉噪声 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong); border-radius: 6px;
  border: 2px solid transparent; background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: #4a5a78; background-clip: content-box; }

.hidden { display: none !important; }

/* ==========================================================
   登录页 —— 第一眼，做足仪式感
   ========================================================== */
.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 32px 20px;
  position: relative;
  background-image:
    radial-gradient(760px 480px at 50% 8%, rgba(91, 140, 255, .16), transparent 60%),
    radial-gradient(620px 420px at 88% 88%, rgba(178, 135, 255, .11), transparent 60%);
}
/* 天穹网格：极淡的经纬线，暗示「可被度量的天空」 */
.login-wrap::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .022) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 72% 62% at 50% 42%, #000 18%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 72% 62% at 50% 42%, #000 18%, transparent 78%);
}

.login-card {
  position: relative;
  width: 400px; max-width: 100%;
  background: linear-gradient(180deg, rgba(22, 29, 46, .92), rgba(14, 19, 32, .94));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 34px 30px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  text-align: center;
  overflow: hidden;
}
/* 顶部五色石光带 */
.login-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-stone);
  opacity: .92;
}

.login-logo {
  width: 68px; height: 68px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 18px;
  background: radial-gradient(circle at 50% 38%, rgba(91, 140, 255, .20), rgba(7, 10, 18, .55));
  border: 1px solid rgba(178, 135, 255, .26);
  box-shadow: 0 0 34px rgba(91, 140, 255, .26), inset 0 1px 0 rgba(255, 255, 255, .07);
}
.login-logo svg { width: 42px; height: 42px; display: block; }

.login-card h1 {
  font-size: 27px; font-weight: 700; letter-spacing: 2.5px;
  background: var(--grad-stone);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.login-sub {
  color: var(--text-dim); font-size: 12.5px; line-height: 1.75;
  margin: 9px 0 28px;
}
.login-card form { text-align: left; }
.login-card label {
  display: block; font-size: 11.5px; color: var(--text-dim);
  margin: 15px 0 6px; letter-spacing: .3px;
}
.login-card input {
  width: 100%; padding: 10px 13px;
  background: rgba(7, 10, 18, .72); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); color: var(--text); font-size: 13.5px;
  font-family: inherit; transition: border-color .15s, box-shadow .15s;
}
.login-card input:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, .16);
}
.login-card button { margin-top: 26px; padding: 10px; font-size: 13.5px; font-weight: 600; }
.login-error { color: var(--bad); font-size: 12.5px; margin-top: 13px; min-height: 18px; text-align: center; }
.login-hint {
  color: var(--text-faint); font-size: 11.5px; text-align: center;
  margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--border);
}

/* ==========================================================
   主布局
   ========================================================== */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 236px; flex-shrink: 0;
  background: linear-gradient(180deg, rgba(14, 19, 32, .90), rgba(10, 14, 24, .94));
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.brand {
  display: flex; align-items: center; gap: 11px;
  padding: 18px 16px; border-bottom: 1px solid var(--border);
  position: relative;
}
/* 品牌区底部极淡渐隐分隔，替代生硬直线 */
.brand::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, rgba(91,140,255,.45), rgba(178,135,255,.22), transparent);
}
.brand-mark {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 10px;
  background: radial-gradient(circle at 50% 36%, rgba(91, 140, 255, .22), rgba(7, 10, 18, .5));
  border: 1px solid rgba(178, 135, 255, .28);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 18px rgba(91, 140, 255, .20), inset 0 1px 0 rgba(255, 255, 255, .06);
}
.brand-mark svg { width: 24px; height: 24px; display: block; }
.brand-text { display: flex; flex-direction: column; overflow: hidden; }
.brand-text strong {
  font-size: 14.5px; font-weight: 700; letter-spacing: 1.2px;
  background: var(--grad-stone);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.brand-text span {
  font-size: 10.5px; color: var(--text-faint); letter-spacing: .2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.nav { flex: 1; overflow-y: auto; padding: 12px 10px; }
.nav-group {
  font-size: 10px; color: var(--text-faint); text-transform: uppercase;
  letter-spacing: 1.4px; padding: 15px 9px 7px; font-weight: 600;
}
.nav-group:first-child { padding-top: 5px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 11px; margin-bottom: 2px;
  border-radius: var(--radius-sm);
  color: var(--text-dim); font-size: 13px;
  cursor: pointer; user-select: none;
  border-left: 2px solid transparent;
  transition: background .14s, color .14s, border-color .14s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item.active {
  background: var(--grad-soft); color: #fff; font-weight: 500;
  border-left-color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05);
}
.nav-item .ic { width: 16px; text-align: center; font-size: 12.5px; opacity: .8; }
.nav-item.active .ic { opacity: 1; }

.badge {
  margin-left: auto; background: var(--bad); color: #fff;
  font-size: 10px; font-weight: 700; line-height: 15px;
  padding: 0 5px; border-radius: 9px;
  box-shadow: 0 0 10px rgba(255, 92, 122, .45);
}

.sidebar-foot { padding: 12px; border-top: 1px solid var(--border); }
.ds-tag {
  font-size: 11px; color: var(--text-faint); letter-spacing: .2px;
  text-align: center; padding: 6px; margin-bottom: 9px;
  background: rgba(7, 10, 18, .55); border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.ds-tag.live { color: var(--good); border-color: rgba(61, 219, 164, .32); background: rgba(61, 219, 164, .08); }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 16px 26px;
  border-bottom: 1px solid var(--border);
  background: rgba(14, 19, 32, .82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 20;
}
.topbar h2 { font-size: 17px; font-weight: 650; letter-spacing: .3px; }
.view-desc { font-size: 12px; color: var(--text-dim); margin-top: 3px; max-width: 740px; line-height: 1.65; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.view-container { padding: 22px 26px 52px; flex: 1; }

/* ==========================================================
   通用组件
   ========================================================== */
.select, input[type="text"], input[type="number"], input[type="password"], textarea, select {
  background: rgba(7, 10, 18, .6); border: 1px solid var(--border-strong);
  color: var(--text); border-radius: var(--radius-sm);
  padding: 6px 10px; font-size: 12.5px; font-family: inherit;
  transition: border-color .14s, box-shadow .14s;
}
.select:focus, input:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, .14);
}
textarea { width: 100%; resize: vertical; min-height: 76px; line-height: 1.65; }
select option { background: var(--bg-panel); color: var(--text); }

.btn-primary, .btn-ghost, .btn-danger, .btn-sm {
  border-radius: var(--radius-sm); font-size: 12.5px;
  padding: 7px 15px; cursor: pointer; border: 1px solid transparent;
  font-family: inherit; font-weight: 500;
  transition: filter .14s, background .14s, box-shadow .14s, transform .08s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-primary); color: #fff; font-weight: 600;
  box-shadow: 0 2px 10px rgba(91, 140, 255, .28);
}
.btn-primary:hover { filter: brightness(1.13); box-shadow: 0 4px 16px rgba(91, 140, 255, .40); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled {
  background: var(--bg-elevated); color: var(--text-faint);
  cursor: not-allowed; box-shadow: none; filter: none;
}
.btn-ghost {
  background: rgba(22, 29, 46, .55); border-color: var(--border-strong); color: var(--text-dim);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); border-color: #46557a; }
.btn-danger { background: rgba(255, 92, 122, .07); border-color: rgba(255, 92, 122, .32); color: var(--bad); }
.btn-danger:hover { background: rgba(255, 92, 122, .15); border-color: rgba(255, 92, 122, .5); }
.btn-sm { padding: 4px 10px; font-size: 11.5px; }
.btn-block { width: 100%; }

.card {
  background: linear-gradient(180deg, rgba(22, 29, 46, .52), rgba(14, 19, 32, .68));
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 17px 19px; margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
/* 卡片顶部高光发丝，提升质感层次 */
.card::before {
  content: ""; position: absolute; top: 0; left: 12px; right: 12px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .07), transparent);
  border-radius: 1px; pointer-events: none;
}
.card-title {
  font-size: 13px; font-weight: 600; margin-bottom: 4px;
  display: flex; align-items: center; gap: 8px;
  letter-spacing: .2px;
}
.card-sub { font-size: 11.5px; color: var(--text-faint); margin-bottom: 14px; line-height: 1.65; }

.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 1280px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 窄屏：侧边栏折叠为纯图标模式。
   注意只隐藏 .label，不能用 span:not(.ic) —— 那会连告警角标一起藏掉，
   而角标在窄屏下反而是更需要保留的信息。菜单项已加 title 属性提供悬停提示。 */
@media (max-width: 900px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .sidebar { width: 62px; }
  .brand { justify-content: center; padding: 18px 8px; }
  .brand-text, .nav-group, .ds-tag { display: none; }
  .nav { padding: 12px 8px; }
  .nav-item { justify-content: center; padding: 9px 0; gap: 0; border-left-width: 0; }
  .nav-item .label { display: none; }
  .nav-item .ic { width: auto; font-size: 15px; }
  .nav-item .badge {
    position: absolute; top: 2px; right: 6px;
    margin: 0; padding: 0 4px; font-size: 9px; line-height: 14px;
  }
  .sidebar-foot { padding: 10px 8px; }
  #logoutBtn { padding: 7px 4px; font-size: 11px; }
  .topbar { padding: 14px 16px; flex-wrap: wrap; }
  .view-container { padding: 16px; }
}

/* 指标卡 —— 按语义在左侧留一道色条，一眼分辨好坏 */
.metric {
  background: linear-gradient(180deg, rgba(22, 29, 46, .56), rgba(14, 19, 32, .70));
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 15px 17px;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color .16s, transform .16s;
}
.metric::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--border-strong); border-radius: 0 2px 2px 0;
}
.metric:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.metric-label {
  font-size: 11.5px; color: var(--text-dim); letter-spacing: .2px;
  display: flex; align-items: center; gap: 6px;
}
.metric-value {
  font-size: 27px; font-weight: 650; letter-spacing: -.6px;
  margin: 7px 0 3px; font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}
.metric-value.sm { font-size: 20px; }
.metric-foot { font-size: 11px; color: var(--text-faint); line-height: 1.6; }
.metric.good::before { background: linear-gradient(180deg, var(--good), rgba(61, 219, 164, .25)); }
.metric.warn::before { background: linear-gradient(180deg, var(--warn), rgba(255, 181, 71, .25)); }
.metric.bad::before { background: linear-gradient(180deg, var(--bad), rgba(255, 92, 122, .25)); }
.metric.accent::before { background: var(--grad-stone); }
.metric.good .metric-value { color: var(--good); }
.metric.warn .metric-value { color: var(--warn); }
.metric.bad .metric-value { color: var(--bad); }
.metric.accent .metric-value { color: var(--accent); }

.delta-up { color: var(--good); font-weight: 600; }
.delta-down { color: var(--bad); font-weight: 600; }

/* 表格 */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
th {
  text-align: left; padding: 9px 11px; font-weight: 600;
  color: var(--text-dim); font-size: 11px; letter-spacing: .4px;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap; background: rgba(22, 29, 46, .82);
  position: sticky; top: 0; z-index: 1;
}
td {
  padding: 9px 11px; border-bottom: 1px solid rgba(35, 44, 64, .72);
  vertical-align: middle;
}
tbody tr { transition: background .12s; }
tbody tr:hover { background: rgba(91, 140, 255, .055); }
tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
td.mono { font-family: var(--mono); font-size: 11.5px; }

/* 标签 */
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 10px;
  font-size: 10.5px; font-weight: 600; white-space: nowrap;
  border: 1px solid transparent; letter-spacing: .2px;
}
.tag-good { background: rgba(61, 219, 164, .12); color: var(--good); border-color: rgba(61, 219, 164, .28); }
.tag-warn { background: rgba(255, 181, 71, .12); color: var(--warn); border-color: rgba(255, 181, 71, .28); }
.tag-bad { background: rgba(255, 92, 122, .12); color: var(--bad); border-color: rgba(255, 92, 122, .30); }
.tag-info { background: rgba(91, 140, 255, .13); color: #7fa8ff; border-color: rgba(91, 140, 255, .30); }
.tag-dim { background: rgba(22, 29, 46, .8); color: var(--text-faint); border-color: var(--border); }
.tag-purple { background: rgba(178, 135, 255, .13); color: var(--purple); border-color: rgba(178, 135, 255, .30); }

/* 进度条 */
.bar {
  height: 6px; background: rgba(7, 10, 18, .8); border-radius: 3px;
  overflow: hidden; min-width: 60px; border: 1px solid var(--border);
}
.bar-fill { height: 100%; background: var(--grad-primary); border-radius: 3px; transition: width .4s ease; }
.bar-fill.good { background: linear-gradient(90deg, #2bb98a, var(--good)); }
.bar-fill.warn { background: linear-gradient(90deg, #e09a2a, var(--warn)); }
.bar-fill.bad { background: linear-gradient(90deg, #e0435f, var(--bad)); }
.bar-fill.purple { background: linear-gradient(90deg, #8b6bff, var(--purple)); }

/* 提示条 */
.notice {
  padding: 11px 15px; border-radius: var(--radius-sm);
  font-size: 12.5px; margin-bottom: 14px; line-height: 1.75;
  border-left: 3px solid var(--accent);
  background: rgba(91, 140, 255, .09); color: var(--text-dim);
  border-top: 1px solid rgba(91, 140, 255, .14);
  border-right: 1px solid rgba(91, 140, 255, .14);
  border-bottom: 1px solid rgba(91, 140, 255, .14);
}
.notice.warn { border-left-color: var(--warn); background: rgba(255, 181, 71, .09); border-color: rgba(255, 181, 71, .16); border-left-color: var(--warn); }
.notice.bad { border-left-color: var(--bad); background: rgba(255, 92, 122, .09); border-color: rgba(255, 92, 122, .18); border-left-color: var(--bad); }
.notice.good { border-left-color: var(--good); background: rgba(61, 219, 164, .09); border-color: rgba(61, 219, 164, .16); border-left-color: var(--good); }
.notice.info { border-left-color: var(--accent); background: rgba(91, 140, 255, .09); }
.notice strong { color: var(--text); font-weight: 650; }

.empty {
  text-align: center; padding: 46px 20px; color: var(--text-faint); font-size: 13px;
  line-height: 1.75;
}
.empty .empty-ic { font-size: 27px; display: block; margin-bottom: 11px; opacity: .42; }

.loading { text-align: center; padding: 42px; color: var(--text-dim); font-size: 13px; letter-spacing: .3px; }
.loading::after { content: ""; animation: dots 1.2s steps(4, end) infinite; }
@keyframes dots { 0%{content:""} 25%{content:"."} 50%{content:".."} 75%{content:"..."} }

/* 图表 */
.chart-svg { width: 100%; display: block; overflow: visible; }
.chart-legend {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: 11.5px; color: var(--text-dim); margin-top: 11px;
}
.chart-legend span { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }

/* 漏斗 */
.funnel { display: flex; flex-direction: column; gap: 8px; }
.funnel-stage {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px; background: rgba(22, 29, 46, .62);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: border-color .14s, background .14s;
}
.funnel-stage:hover { border-color: var(--border-strong); background: var(--bg-hover); }
.funnel-bar {
  height: 26px; background: var(--grad-stone); border-radius: 4px; min-width: 3px;
  box-shadow: 0 2px 10px rgba(91, 140, 255, .22);
}
.funnel-label { width: 84px; font-size: 12.5px; color: var(--text-dim); flex-shrink: 0; }
.funnel-qty {
  font-family: var(--mono); font-size: 17px; font-weight: 650; width: 84px; flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.funnel-rate { font-size: 11.5px; color: var(--text-faint); flex-shrink: 0; }

/* 表单区 */
.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.form-field { display: flex; flex-direction: column; gap: 5px; }
.form-field label { font-size: 11.5px; color: var(--text-dim); }
.form-field input, .form-field select { min-width: 150px; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  background: rgba(22, 29, 46, .7); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 12px; font-size: 11.5px; color: var(--text-dim);
  cursor: pointer; user-select: none;
  transition: border-color .14s, color .14s, background .14s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.on {
  background: var(--grad-soft); border-color: var(--accent); color: #fff;
  box-shadow: 0 0 0 1px rgba(91, 140, 255, .2);
}

/* 弹窗 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(4, 6, 12, .76);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 24px;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  animation: fadeIn .16s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes riseIn { from { opacity: 0; transform: translateY(10px) scale(.985); } to { opacity: 1; transform: none; } }
.modal {
  background: linear-gradient(180deg, #161d2e, #0e1320);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg); padding: 22px 24px;
  max-width: 860px; width: 100%; max-height: 86vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: riseIn .2s ease;
}
.modal::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-stone); opacity: .8; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 15px; }
.modal-head h3 { font-size: 15.5px; font-weight: 650; letter-spacing: .2px; }
.modal-close {
  background: rgba(22, 29, 46, .6); border: 1px solid var(--border);
  color: var(--text-faint); font-size: 17px; cursor: pointer; line-height: 1;
  width: 27px; height: 27px; border-radius: 7px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: color .14s, border-color .14s, background .14s;
}
.modal-close:hover { color: var(--text); border-color: var(--border-strong); background: var(--bg-hover); }
.answer-box {
  background: rgba(7, 10, 18, .72); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 15px;
  font-size: 12.5px; line-height: 1.9; white-space: pre-wrap;
  max-height: 340px; overflow-y: auto; color: var(--text-dim);
}
.answer-box mark { background: rgba(255, 181, 71, .18); color: var(--warn); padding: 0 3px; border-radius: 3px; }
.kv { display: grid; grid-template-columns: 112px 1fr; gap: 8px 13px; font-size: 12.5px; margin-bottom: 15px; }
.kv dt { color: var(--text-faint); }
.kv dd { color: var(--text); word-break: break-all; }

/* Toast */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(180deg, #1c2438, #12182a);
  border: 1px solid var(--border-strong);
  padding: 11px 22px; border-radius: 22px; font-size: 13px;
  z-index: 200; box-shadow: var(--shadow-lg);
  max-width: 80vw; font-weight: 500;
  animation: riseIn .2s ease;
}
.toast.ok { border-color: rgba(61, 219, 164, .42); color: var(--good); box-shadow: 0 8px 28px rgba(0,0,0,.5), 0 0 18px rgba(61, 219, 164, .14); }
.toast.err { border-color: rgba(255, 92, 122, .42); color: var(--bad); box-shadow: 0 8px 28px rgba(0,0,0,.5), 0 0 18px rgba(255, 92, 122, .14); }

/* 说明文档 */
.doc h4 { font-size: 13.5px; margin: 22px 0 9px; color: var(--text); font-weight: 650; }
.doc h4:first-child { margin-top: 0; }
.doc p, .doc li { font-size: 12.5px; color: var(--text-dim); line-height: 1.9; }
.doc ul { padding-left: 20px; margin: 6px 0; }
.doc code {
  font-family: var(--mono); font-size: 11.5px;
  background: rgba(7, 10, 18, .8); padding: 1px 6px; border-radius: 4px;
  border: 1px solid var(--border); color: var(--cyan);
}
.doc .formula {
  font-family: var(--mono); font-size: 12px; background: rgba(7, 10, 18, .8);
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  padding: 11px 15px; border-radius: var(--radius-sm); margin: 9px 0;
  color: var(--text); overflow-x: auto;
}

.scroll-y { max-height: 420px; overflow-y: auto; }
.row-flex { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.mt { margin-top: 14px; }
.dim { color: var(--text-faint); font-size: 11.5px; }
.nowrap { white-space: nowrap; }

/* 卡片头部（标题 + 操作按钮两端对齐） */
.card-head {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-bottom: 15px; flex-wrap: wrap;
}
.card-head h4 {
  font-size: 13.5px; font-weight: 650; margin: 0; color: var(--text);
  letter-spacing: .2px; display: flex; align-items: center; gap: 8px;
}
/* 卡片标题前的五色石标记 */
.card-head h4::before {
  content: ""; width: 3px; height: 13px; border-radius: 2px;
  background: var(--grad-stone); flex-shrink: 0;
}

/* 文字按钮 */
.btn-link {
  background: none; border: none; padding: 0; cursor: pointer;
  color: var(--accent); font-size: 12px; font-family: inherit;
  transition: color .14s;
}
.btn-link:hover { color: #8fb2ff; text-decoration: underline; }
.btn-link:disabled { color: var(--text-faint); cursor: not-allowed; text-decoration: none; }

/* 小尺寸下拉 */
.select-sm { padding: 4px 9px; font-size: 11.5px; min-width: 110px; }

/* 警告行底色 */
tr.row-warn td { background: rgba(255, 181, 71, .075); }
tr.row-warn:hover td { background: rgba(255, 181, 71, .13); }

/* 弹窗内容容器与表单标签 */
.modal-body { font-size: 13px; }
.modal-body label {
  display: block; font-size: 11.5px; color: var(--text-dim);
  margin-bottom: 5px; letter-spacing: .2px;
}
.modal-body .input,
.modal-body .textarea,
.modal-body .select { width: 100%; box-sizing: border-box; }
.modal-body .notice { margin-bottom: 12px; }

/* 内容预览块 */
.content-preview {
  background: rgba(7, 10, 18, .72); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 15px 17px;
  white-space: pre-wrap; word-break: break-word; color: var(--text);
  line-height: 1.8;
}

/* 无障碍：键盘导航可见焦点环 */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}