/* ════════════════════════════════════════════════════════════════
   绿电直连项目评估系统 — 设计系统 (Green Power Design System)
   主色：绿(可再生) + 蓝(电力/数据) 双主色
   支持浅色 / 深色双主题
   ════════════════════════════════════════════════════════════════ */

/* ── 设计令牌：浅色主题 ── */
:root {
  /* 背景与表面 */
  --bg: #eef3f1;
  --bg-accent: #e3efe9;
  --surface: #ffffff;
  --surface-2: #f6faf8;
  --surface-hover: #f0f6f3;
  --surface-glass: rgba(255, 255, 255, 0.72);

  /* 边框与分割 */
  --border: #e2eae6;
  --border-strong: #c9d6d0;
  --divider: #eef2f0;

  /* 文本 */
  --text: #0f211b;
  --text-2: #45564f;
  --text-muted: #7c8d85;

  /* 品牌主色（绿 = 可再生） */
  --primary: #0f9d6b;
  --primary-strong: #0a7d54;
  --primary-soft: rgba(15, 157, 107, 0.10);
  --primary-soft-2: rgba(15, 157, 107, 0.16);

  /* 辅助色（蓝/青 = 电力/数据） */
  --accent: #0e7490;
  --accent-2: #1d6fd6;
  --accent-soft: rgba(14, 116, 144, 0.10);

  /* 语义色 */
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;

  /* 品牌渐变（绿→青→蓝，呼应 清洁电能→电网→数据） */
  --brand-grad: linear-gradient(135deg, #0b7a52 0%, #0d9488 52%, #0284c7 100%);
  --brand-grad-soft: linear-gradient(135deg, rgba(11, 122, 82, 0.10), rgba(2, 132, 199, 0.10));
  --primary-grad: linear-gradient(135deg, #0f9d6b, #0d9488);
  --accent-grad: linear-gradient(135deg, #0e7490, #1d6fd6);

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(15, 33, 27, 0.05);
  --shadow-sm: 0 2px 8px rgba(15, 33, 27, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 33, 27, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 33, 27, 0.12);
  --ring: 0 0 0 3px rgba(15, 157, 107, 0.18);

  /* 图表 */
  --chart-text: #647873;
  --chart-grid: rgba(15, 33, 27, 0.07);

  /* 头部 */
  --header-bg: var(--brand-grad);
  --header-text: #ffffff;

  /* 圆角 */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ── 设计令牌：深色主题 ── */
[data-theme="dark"] {
  --bg: #0a1410;
  --bg-accent: #0e1c16;
  --surface: #12201a;
  --surface-2: #16271f;
  --surface-hover: #1c3026;
  --surface-glass: rgba(18, 32, 26, 0.72);

  --border: #21372c;
  --border-strong: #2f4a3c;
  --divider: #1a2c23;

  --text: #e7f1ec;
  --text-2: #a9bcb2;
  --text-muted: #6f877b;

  --primary: #2dd49a;
  --primary-strong: #1bb37f;
  --primary-soft: rgba(45, 212, 154, 0.12);
  --primary-soft-2: rgba(45, 212, 154, 0.18);

  --accent: #38bdf8;
  --accent-2: #60a5fa;
  --accent-soft: rgba(56, 189, 248, 0.12);

  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;

  --brand-grad: linear-gradient(135deg, #064e3b 0%, #0f766e 52%, #0369a1 100%);
  --brand-grad-soft: linear-gradient(135deg, rgba(6, 78, 59, 0.25), rgba(3, 105, 161, 0.22));
  --primary-grad: linear-gradient(135deg, #2dd49a, #22d3ee);
  --accent-grad: linear-gradient(135deg, #38bdf8, #60a5fa);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
  --ring: 0 0 0 3px rgba(45, 212, 154, 0.25);

  --chart-text: #8aa39a;
  --chart-grid: rgba(255, 255, 255, 0.06);

  --header-bg: linear-gradient(135deg, #064e3b 0%, #0f766e 52%, #0369a1 100%);
  --header-text: #eafff6;
}

/* ── 全局重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  line-height: 1.6;
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 100% -10%, var(--primary-soft), transparent 60%),
    radial-gradient(900px 500px at -10% 0%, var(--accent-soft), transparent 55%);
  background-attachment: fixed;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }

/* ── 头部 ── */
.header {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 16px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-md);
}
.header-left { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-logo {
  width: 42px; height: 42px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  flex-shrink: 0;
}
.header-left h1 { font-size: 21px; font-weight: 700; letter-spacing: 0.2px; line-height: 1.2; }
.header-left .subtitle { font-size: 12.5px; opacity: 0.82; margin-top: 2px; }
.header-actions { display: flex; gap: 10px; align-items: center; }

/* 头部图标按钮（含主题切换） */
.header-icon-btn {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  width: 38px; height: 38px;
  border-radius: 10px;
  font-size: 17px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  line-height: 1;
  backdrop-filter: blur(4px);
}
.header-icon-btn:hover { background: rgba(255, 255, 255, 0.24); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); }
.header-icon-btn:active { transform: scale(0.9); }
/* 主题切换：根据 data-theme 显示太阳/月亮 */
.theme-icon-sun, .theme-icon-moon { display: none; }
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="light"] .theme-icon-moon,
:root:not([data-theme="dark"]) .theme-icon-moon { display: block; }

/* ── 选项卡 ── */
.tabs {
  display: flex;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 12px;
  gap: 2px;
  flex-wrap: wrap;
  position: sticky;
  top: 70px;
  z-index: 40;
  box-shadow: var(--shadow-xs);
}
.tab {
  padding: 15px 22px;
  border: none;
  background: none;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  border-radius: 8px 8px 0 0;
  position: relative;
}
.tab:hover { color: var(--primary-strong); background: var(--primary-soft); }
.tab.active {
  color: var(--primary-strong);
  border-bottom-color: var(--primary);
  font-weight: 700;
}

/* ── 内容区 ── */
.tab-content {
  display: none;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.35s ease;
}
.tab-content.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── 卡片 ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 26px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card h2 {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--divider);
  display: flex;
  align-items: center;
  gap: 8px;
}
.card h2::before {
  content: '';
  display: inline-block;
  width: 4px; height: 16px;
  background: var(--primary-grad);
  border-radius: 3px;
  flex-shrink: 0;
}
.card h3 { font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 8px; }

/* ── 上传区 ── */
.upload-row { display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap; }
.upload-box { flex: 1; min-width: 200px; }
.upload-box label { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
.upload-box input[type="file"] {
  width: 100%;
  padding: 10px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-sm);
  font-size: 13px;
  background: var(--surface-2);
  color: var(--text-2);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.upload-box input[type="file"]:hover { border-color: var(--primary); background: var(--primary-soft); }
.hint { display: block; font-size: 11.5px; color: var(--text-muted); margin-top: 5px; line-height: 1.5; }

/* ── 按钮 ── */
.btn {
  padding: 10px 22px;
  border: none;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
  font-family: inherit;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary {
  background: var(--primary-grad);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-soft-2);
}
.btn.primary:hover:not(:disabled) {
  filter: brightness(1.06);
  box-shadow: 0 6px 20px var(--primary-soft-2);
  transform: translateY(-1px);
}
.btn.primary:active:not(:disabled) { transform: translateY(0); }
.btn.secondary {
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border-strong);
}
.btn.secondary:hover:not(:disabled) { background: var(--surface-hover); border-color: var(--primary); color: var(--primary-strong); }
.btn.ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid transparent;
  padding: 5px 12px;
}
.btn.ghost:hover:not(:disabled) { background: var(--surface-hover); color: var(--error, #c62828); }
.btn-large { padding: 14px 32px; font-size: 15px; width: 100%; max-width: 400px; }

/* ── 表单 ── */
.form-row { display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.form-grid.col3 { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.form-group { display: flex; flex-direction: column; min-width: 0; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text-2); margin-bottom: 5px; }
.form-group input, .form-group select {
  padding: 9px 11px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--text);
  background: var(--surface);
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.form-group input:hover, .form-group select:hover { border-color: var(--primary); }
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--ring);
  background: var(--surface);
}
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select { background: var(--surface-2); }

/* ── 统计卡片 ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px 18px;
  text-align: center;
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-grad);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--primary-soft-2); }
.stat-label { font-size: 11.5px; color: var(--text-muted); margin-bottom: 6px; }
.stat-value { font-size: 21px; font-weight: 800; color: var(--text); letter-spacing: -0.3px; }
.stat-value.small { font-size: 12.5px; font-weight: 700; }

/* ── 状态消息 ── */
.status { margin-top: 12px; font-size: 13px; min-height: 20px; color: var(--text-2); }
.status.is-error { color: var(--danger); }
.status.is-ok { color: var(--success); }
.scaling-results { margin-top: 12px; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; font-size: 13px; }
.scaling-results div { background: var(--surface-2); padding: 8px 12px; border-radius: var(--r-sm); border: 1px solid var(--border); }

/* ── 进度条 ── */
.progress-bar { height: 6px; background: var(--border); border-radius: 3px; margin: 10px 0; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary-grad); width: 0%; transition: width 0.3s; }

/* ── 图表容器 ── */
.chart-wrap { position: relative; width: 100%; height: 340px; max-height: 360px; }
.chart-wrap canvas { width: 100% !important; }
[data-theme="dark"] .chart-wrap { filter: saturate(1.05); }

/* ── 内置示例数据下载 ── */
.builtin-download {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
}
.builtin-download-title { font-size: 13px; font-weight: 700; color: var(--text-2); }
.dl-link {
  font-size: 13px;
  color: var(--primary-strong);
  text-decoration: none;
  padding: 5px 14px;
  background: var(--surface);
  border: 1px solid var(--primary-soft-2);
  border-radius: var(--r-sm);
  transition: all 0.18s;
}
.dl-link:hover { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: var(--ring); }

/* ── 表格 ── */
.table-scroll { overflow-x: auto; border-radius: var(--r-sm); }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table th {
  background: var(--surface-2);
  padding: 9px 11px;
  text-align: left;
  font-weight: 700;
  color: var(--text-2);
  border-bottom: 2px solid var(--border-strong);
  white-space: nowrap;
}
table td { padding: 7px 11px; border-bottom: 1px solid var(--divider); white-space: nowrap; color: var(--text); }
table tbody tr { transition: background 0.15s; }
table tbody tr:hover { background: var(--surface-hover); }

/* ── 参数摘要 ── */
.param-summary {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-soft-2);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--primary-strong);
  font-weight: 600;
}

/* ── 空状态 ── */
.empty-hint { color: var(--text-muted); text-align: center; padding: 48px 0; font-size: 14px; }
.empty-hint::before { content: '🌿'; display: block; font-size: 32px; margin-bottom: 10px; opacity: 0.6; }

/* ── 汇总内容 ── */
#summary-content { font-size: 13px; line-height: 2; }
#summary-content .highlight { font-size: 16px; font-weight: 800; color: var(--primary-strong); }

/* ── 图表日期行 ── */
.chart-date-row { align-items: flex-end; margin-top: 8px; }

/* ── 系列复选框 ── */
.series-checkboxes { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; font-size: 12.5px; color: var(--text-2); }
.series-checkboxes label { display: flex; align-items: center; gap: 5px; cursor: pointer; }
.series-checkboxes input { accent-color: var(--primary); width: 15px; height: 15px; }

/* ── 统计对比表格 ── */
.stats-table { font-size: 13px; }
.stats-table th { background: var(--primary-soft); text-align: center; color: var(--primary-strong); }
.stats-table td { text-align: center; }
.stats-table td:first-child { text-align: center; font-weight: 700; color: var(--text); }

/* ── 进度日期 ── */
#progress-dates { font-size: 12px; color: var(--text-2); margin-top: 6px; line-height: 1.8; max-height: 120px; overflow-y: auto; }
.progress-date-done { color: var(--success); }
.progress-date-pending { color: var(--text-muted); }

/* ════════════════════════════════════════════════════════════════
   登录门控
   ════════════════════════════════════════════════════════════════ */
.login-gate {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(900px 600px at 80% 10%, var(--primary-soft), transparent 60%),
    radial-gradient(700px 500px at 10% 90%, var(--accent-soft), transparent 60%),
    var(--brand-grad);
  padding: 24px;
}
.login-gate .login-box {
  background: var(--surface);
  border-radius: var(--r-xl);
  padding: 40px 38px;
  width: 380px;
  max-width: 92vw;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  animation: popIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.login-gate .login-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--brand-grad);
}
@keyframes popIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.login-gate .login-box .login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 18px;
}
.login-gate .login-box .login-brand .brand-logo { width: 46px; height: 46px; border-radius: 13px; }
.login-gate .login-box .login-brand-text {
  display: flex;
  align-items: baseline;
  gap: 0;
}
.login-gate .login-box .login-brand span { font-size: 19px; font-weight: 800; color: var(--text); }
.login-gate .login-box .login-brand h2 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}
.login-gate .login-box .login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 28px;
}
.login-gate .login-box .form-group { margin-bottom: 16px; }
.login-gate .login-box .btn { width: 100%; margin-top: 8px; }
.login-gate .login-box .login-status { margin-top: 12px; font-size: 13px; text-align: center; min-height: 20px; }

/* 登录类型切换 Tab */
.login-type-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid var(--border); }
.login-type-tab {
  flex: 1;
  padding: 10px 0;
  border: none;
  background: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
  font-family: inherit;
}
.login-type-tab:hover { color: var(--primary-strong); }
.login-type-tab.active { color: var(--primary-strong); border-bottom-color: var(--primary); }

/* 密码可见切换 */
.pwd-wrap { position: relative; display: flex; align-items: center; }
.pwd-wrap input { flex: 1; padding-right: 40px; }
.pwd-eye {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  padding: 2px 4px;
  opacity: 0.45;
  transition: opacity 0.2s;
  line-height: 1;
}
.pwd-eye:hover { opacity: 1; }
.pwd-eye.active { opacity: 1; }

/* 未认证时隐藏主界面所有元素（登录门控除外） */
#app:not(.authenticated) > .header,
#app:not(.authenticated) > .tabs,
#app:not(.authenticated) > .tab-content { display: none !important; }

/* ════════════════════════════════════════════════════════════════
   经济性评价参数表单
   ════════════════════════════════════════════════════════════════ */
.econ-sections { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.econ-section {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px 18px 14px;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
}
.econ-section:hover { border-color: var(--primary-soft-2); box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.econ-section-title {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--primary-strong);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 7px;
}
.econ-section-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 13px;
  background: var(--primary-grad);
  border-radius: 2px;
}
.econ-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.econ-grid .form-group label { font-size: 11px; }
.econ-grid .form-group input, .econ-grid .form-group select { padding: 7px 9px; font-size: 12px; }
/* 投资汇总 + 计算按钮 作为「税费与折现」右侧的紧凑操作区 */
.econ-summary-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: start;
}
.econ-summary-block { flex: none; padding: 12px 14px; }
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 10px; }
.summary-cell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 7px 9px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.summary-cell .sc-label { font-size: 10.5px; color: var(--text-muted); }
.summary-cell strong { font-size: 14px; color: var(--text); font-weight: 800; }
.summary-cell-total {
  background: var(--brand-grad-soft);
  border-color: var(--primary-soft-2);
}
.summary-cell-total strong { color: var(--primary-strong); font-size: 16px; }
.econ-calc-action {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}
.econ-calc-action .btn { width: auto; max-width: none; white-space: nowrap; }
.btn-calc-narrow { width: auto; }
.econ-calc-action .method-details {
  flex: 1 1 220px;
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  align-self: flex-start;
}
.econ-calc-action .method-details summary { cursor: pointer; font-weight: 500; color: var(--text-2); }

/* ════════════════════════════════════════════════════════════════
   现金流详表
   ════════════════════════════════════════════════════════════════ */
.cf-formula-note {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--text-2);
}
.cf-formula-note .cf-note-sub { color: var(--text-muted); font-size: 11.5px; margin-top: 4px; }
#econ-cashflow-table th, #econ-cashflow-table td { white-space: nowrap; }
#econ-cashflow-table .cf-grp th { font-size: 12px; font-weight: 700; }
#econ-cashflow-table .cf-col th { font-size: 11px; font-weight: 600; }
#econ-cashflow-table th.grp-in { background: rgba(22, 163, 74, 0.10); color: var(--success); }
#econ-cashflow-table th.grp-out { background: rgba(220, 38, 38, 0.08); color: var(--danger); }
#econ-cashflow-table th.grp-net { background: var(--primary-soft); color: var(--primary-strong); }
#econ-cashflow-table th.grp-ref { background: var(--surface-2); color: var(--text-muted); }
#econ-cashflow-table td.cf-net { font-weight: 800; color: var(--primary-strong); background: var(--primary-soft); }
#econ-cashflow-table td.cf-ref { color: var(--text-muted); font-style: italic; }
#econ-cashflow-table tr.cf-total td {
  position: sticky;
  bottom: 0;
  background: var(--surface-2);
  font-weight: 800;
  color: var(--text);
  border-top: 2px solid var(--primary);
  box-shadow: 0 -2px 6px rgba(15, 33, 27, 0.08);
}
#econ-cashflow-table tr.cf-total td.cf-net { background: var(--primary-soft); color: var(--primary-strong); }
#econ-cashflow-table tr.cf-total td.cf-ref { color: var(--text-muted); }
.cf-round-note { margin-top: 8px; font-size: 11.5px; color: var(--text-muted); line-height: 1.6; }

/* ── AI 设置弹窗 ── */
#ai-settings-modal { backdrop-filter: blur(6px); }
#ai-settings-modal > div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 26px;
  width: 440px;
  max-width: 92vw;
  box-shadow: var(--shadow-lg);
  animation: popIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
#ai-settings-modal h3 { font-size: 16px; font-weight: 700; margin: 0 0 18px; color: var(--text); }

/* ── 自定义滚动条 ── */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── 响应式 ── */
@media (max-width: 900px) {
  .econ-sections { grid-template-columns: 1fr; }
  .header-left h1 { font-size: 18px; }
  .header-left .subtitle { font-size: 11px; }
}
@media (max-width: 600px) {
  .tab-content { padding: 16px; }
  .card { padding: 18px; }
  .header { padding: 12px 16px; }
  .series-checkboxes { flex-direction: column; gap: 6px; }
  .econ-grid { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .header-left .subtitle { display: none; }
}

/* ── 减少动效偏好 ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}