/* 热解四收率预测 · 前端样式（零依赖，无构建） */

:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text-soft: #475569;
  --muted: #94a3b8;
  --primary: #1d4ed8;
  --primary-soft: #eff6ff;
  --primary-dark: #1e40af;
  --ok: #15803d;
  --ok-soft: #f0fdf4;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --danger: #b91c1c;
  --danger-soft: #fef2f2;
  --solid: #64748b;
  --oil: #b45309;
  --water: #0369a1;
  --gas: #7c3aed;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px -12px rgba(15, 23, 42, .12);
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p { margin: 0; }

code { font-family: var(--mono); font-size: .92em; }

/* ---------------- 顶栏 ---------------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--primary), #7c3aed);
  color: #fff;
  font-weight: 700;
  font-size: 17px;
}

.brand-text h1 { font-size: 16px; font-weight: 650; letter-spacing: .2px; }
.brand-text p { font-size: 12px; color: var(--muted); }

.topbar-status { display: flex; align-items: center; gap: 10px; }

.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}

.pill::before {
  content: "";
  width: 7px; height: 7px; border-radius: 50%;
  background: currentColor;
  flex: none;
}

.pill--pending { background: var(--surface-soft); color: var(--text-soft); border-color: var(--border); }
.pill--ok { background: var(--ok-soft); color: var(--ok); border-color: #bbf7d0; }
.pill--warn { background: var(--warn-soft); color: var(--warn); border-color: #fde68a; }
.pill--error { background: var(--danger-soft); color: var(--danger); border-color: #fecaca; }

/* ---------------- 布局 ---------------- */

.layout {
  display: grid;
  grid-template-columns: minmax(520px, 1.35fr) minmax(360px, 1fr);
  gap: 18px;
  padding: 18px 22px 28px;
  align-items: start;
}

@media (max-width: 1180px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-soft);
}

.panel-head h2 { font-size: 14px; font-weight: 650; }

.panel--result { position: sticky; top: 78px; }
@media (max-width: 1180px) { .panel--result { position: static; } }

/* ---------------- 标签页 ---------------- */

.tabs { display: flex; gap: 4px; background: #eef2f7; padding: 3px; border-radius: 8px; }

.tab {
  border: 0;
  background: transparent;
  padding: 5px 14px;
  border-radius: 6px;
  font: inherit;
  font-size: 13px;
  color: var(--text-soft);
  cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.is-active { background: var(--surface); color: var(--primary); font-weight: 600; box-shadow: 0 1px 2px rgba(15,23,42,.08); }

/* ---------------- 按钮 ---------------- */

.btn {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 7px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
}
.btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn--sm { padding: 5px 11px; font-size: 12.5px; }
.btn--ghost { border-color: var(--border); color: var(--text-soft); background: transparent; }
.btn--primary {
  background: var(--primary); border-color: var(--primary); color: #fff;
  font-weight: 600; padding: 9px 22px;
}
.btn--primary:hover:not(:disabled) { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }

/* ---------------- 表单 ---------------- */

.tab-panel { padding: 16px 18px 18px; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 14px; }

.switch {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--text-soft);
  margin-left: auto; cursor: pointer; user-select: none;
}
.switch input { accent-color: var(--primary); width: 15px; height: 15px; cursor: pointer; }

.form-group { margin-bottom: 18px; }

.form-group-head {
  display: flex; align-items: baseline; gap: 8px;
  padding-bottom: 8px; margin-bottom: 10px;
  border-bottom: 1px dashed var(--border);
}
.form-group-head h3 { font-size: 13px; font-weight: 650; color: var(--text); }
.form-group-head span { font-size: 12px; color: var(--muted); }

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px 14px;
}

.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }

.field-label {
  display: block;
  font-size: 12.5px;
  color: var(--text-soft);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-label .req {
  color: var(--danger);
  font-weight: 700;
  margin-left: 3px;
}

.field input[type="text"], .field select, .batch-input {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  background: var(--surface);
  transition: border-color .12s, box-shadow .12s;
}

.field input:focus, .field select:focus, .batch-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, .12);
}

.field-hint { font-size: 11.5px; color: var(--muted); min-height: 16px; }
.field-hint.is-warn { color: var(--warn); font-weight: 600; }
.field-hint.is-missing { color: var(--danger); font-weight: 600; }

.field.is-warn input, .field.is-warn select { border-color: #fcd34d; background: var(--warn-soft); }
.field.is-missing input, .field.is-missing select { border-color: #fca5a5; }
.field.is-error input, .field.is-error select {
  border-color: var(--danger);
  background: var(--danger-soft);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, .12);
}
.field-hint.is-error { color: var(--danger); font-weight: 600; }

.batch-input {
  min-height: 220px;
  resize: vertical;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  margin-bottom: 12px;
}

.form-footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding-top: 14px; border-top: 1px solid var(--border);
}

.muted { color: var(--muted); font-size: 12.5px; }

.hint { font-size: 12px; color: var(--muted); margin-top: 10px; }
.hint--convention { padding-top: 10px; border-top: 1px solid var(--border); margin-top: 14px; }

.placeholder {
  padding: 32px 20px;
  text-align: center;
  color: var(--text-soft);
  font-size: 13px;
  background: var(--surface-soft);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}
.placeholder p + p { margin-top: 6px; }
.placeholder--error { background: var(--danger-soft); border-color: #fecaca; color: var(--danger); text-align: left; }

/* ---------------- 结果 ---------------- */

.result-body { padding: 16px 18px 18px; }

.result-meta {
  display: flex; flex-wrap: wrap; gap: 8px 14px;
  font-size: 12px; color: var(--muted);
  margin-bottom: 14px;
}
.result-meta b { color: var(--text-soft); font-weight: 600; }

.yield-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.yield-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 13px;
  background: var(--surface);
  border-top: 3px solid var(--accent, var(--primary));
}

.yield-card h4 { font-size: 12.5px; color: var(--text-soft); font-weight: 600; }

.yield-value {
  font-size: 26px;
  font-weight: 680;
  letter-spacing: -.5px;
  color: var(--accent, var(--text));
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}
.yield-value small { font-size: 12px; font-weight: 500; color: var(--muted); margin-left: 2px; }

.interval-bar {
  position: relative;
  height: 6px;
  border-radius: 3px;
  background: #eef2f7;
  margin: 9px 0 5px;
}
.interval-range {
  position: absolute; top: 0; bottom: 0;
  background: var(--accent, var(--primary));
  opacity: .35;
  border-radius: 3px;
}
.interval-point {
  position: absolute; top: -2px;
  width: 3px; height: 10px;
  border-radius: 2px;
  background: var(--accent, var(--primary));
  transform: translateX(-50%);
}
.interval-text { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; }

.total-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 13px;
  background: var(--primary-soft);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
}
.total-row b { font-size: 16px; color: var(--primary-dark); font-variant-numeric: tabular-nums; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
}
.badge--ok { background: var(--ok-soft); color: var(--ok); border: 1px solid #bbf7d0; }
.badge--warn { background: var(--warn-soft); color: var(--warn); border: 1px solid #fde68a; }
.badge--danger { background: var(--danger-soft); color: var(--danger); border: 1px solid #fecaca; }
.badge--neutral { background: #eef2f7; color: var(--text-soft); border: 1px solid var(--border); }

.subhead {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  font-size: 13px; font-weight: 650;
  margin: 0 0 10px;
}

.score-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.score-track { flex: 1; height: 8px; border-radius: 4px; background: #eef2f7; overflow: hidden; }
.score-fill { height: 100%; border-radius: 4px; background: var(--ok); }
.score-fill.is-warn { background: #f59e0b; }
.score-fill.is-danger { background: var(--danger); }
.score-value { font-size: 15px; font-weight: 680; font-variant-numeric: tabular-nums; min-width: 46px; text-align: right; }

/* 四收率堆叠占比条（四项和恒为 100） */
.stacked-wrap { margin-bottom: 16px; }
.stacked-bar {
  display: flex;
  height: 26px;
  border-radius: 6px;
  overflow: hidden;
  background: #eef2f7;
  border: 1px solid var(--border);
}
.stacked-seg {
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 11.5px; font-weight: 600;
  transition: width .25s ease;
  overflow: hidden;
}
.stacked-legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 8px; }
.stacked-legend-item { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-soft); }
.stacked-legend-item i { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }

/* 诊断明细折叠区 */
.diag-details { margin-bottom: 10px; }
.diag-details > summary {
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text-soft);
  padding: 4px 0;
}
.diag-details[open] > summary { color: var(--primary); }
.diag-details .metric-grid { margin-top: 8px; }

.hint--alert {
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid #fde68a;
  border-radius: 7px;
  padding: 7px 11px;
}

/* 批量结果分页（算法服务不分页，由前端分页） */
.pager {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  margin-top: 10px;
}
.pager-buttons { display: flex; align-items: center; gap: 8px; }
.pager-page { font-size: 12.5px; color: var(--text-soft); font-variant-numeric: tabular-nums; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}
.metric {
  display: flex; justify-content: space-between; gap: 8px;
  padding: 7px 11px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 12.5px;
}
.metric span { color: var(--text-soft); }
.metric b { font-variant-numeric: tabular-nums; }

.notes {
  font-size: 12.5px;
  color: var(--text-soft);
  background: var(--warn-soft);
  border: 1px solid #fde68a;
  border-radius: 7px;
  padding: 8px 11px;
}
.notes--ok { background: var(--ok-soft); border-color: #bbf7d0; }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }

table.data { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.data th, table.data td { padding: 7px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data th { background: var(--surface-soft); font-weight: 600; color: var(--text-soft); position: sticky; top: 0; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: #f8fafc; }
table.data td.num { font-variant-numeric: tabular-nums; }
table.data td .sub { display: block; font-size: 11px; color: var(--muted); }

details.raw { margin-top: 14px; }
details.raw summary { cursor: pointer; font-size: 12.5px; color: var(--text-soft); }
details.raw pre {
  margin: 8px 0 0;
  padding: 12px;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.5;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.error-box { padding: 14px 16px; background: var(--danger-soft); border: 1px solid #fecaca; border-radius: var(--radius); }
.error-box h3 { font-size: 13.5px; color: var(--danger); margin-bottom: 4px; }
.error-box p { font-size: 12.5px; color: var(--text-soft); }
.error-code { font-family: var(--mono); font-size: 12px; color: var(--danger); font-weight: 600; }
.error-box .table-wrap { margin-top: 10px; background: #fff; }

.spinner {
  display: inline-block;
  width: 13px; height: 13px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  vertical-align: -2px;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.footnote {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding: 0 22px 24px;
  font-size: 12px;
  color: var(--muted);
}
.footnote .dot { color: var(--border-strong); }

/* 启动自检失败提示（前端脚本未运行时唯一可见的错误出口） */
.boot-warning {
  padding: 11px 22px;
  background: var(--danger-soft);
  border-bottom: 1px solid #fecaca;
  color: var(--danger);
  font-size: 12.5px;
}