/* ==========================================================================
   法兰标准库 · A4 规格卡打印样式
   目标：A4 纵向单页，黑白激光打印机可直接输出
   ========================================================================== */

@page {
  size: A4 portrait;
  margin: 0;
}

:root {
  --ink: #0b1b2b;
  --steel: #44576b;
  --muted: #6b7d90;
  --line: #c9d3de;
  --line-strong: #0b1b2b;
  --accent: #c2410c;
  --font: "Arial Unicode MS", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans SC", sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

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

body.print-body {
  background: #dfe5ec;
  font-family: var(--font);
  color: #000;
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  font-size: 9pt;
  line-height: 1.5;
}

/* ---------- 屏幕预览工具条 ---------- */
.toolbar-group {
  display: flex; align-items: center; gap: 6px; flex: none;
}
.toolbar-group label { font-size: 11.5px; color: #9fb2c5; white-space: nowrap; }
.toolbar-group select {
  font-family: var(--font); font-size: 12px; padding: 6px 8px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08); color: #fff;
}
.toolbar-group select option { color: #0b1b2b; background: #fff; }

.print-hint {
  max-width: 210mm; margin: 0 auto; padding: 8px 12mm 10px;
  color: #ffd4c2; font-size: 12px; line-height: 1.6;
}
.print-toolbar {
  position: sticky; top: 0; z-index: 20;
  background: #0b1b2b; color: #fff;
  box-shadow: 0 2px 14px rgba(11, 27, 43, 0.28);
}
.toolbar-inner {
  max-width: 210mm; margin: 0 auto; padding: 12px 12mm;
  display: flex; align-items: center; gap: 20px;
}
.toolbar-title { font-weight: 700; font-size: 14px; letter-spacing: 0.04em; white-space: nowrap; }
.toolbar-hint { font-size: 11.5px; color: #9fb2c5; flex: 1; }
.toolbar-actions { display: flex; gap: 8px; }
.toolbar-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 14px; border-radius: 6px; border: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent; color: #fff; font-family: var(--font); font-size: 12.5px;
  font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap;
}
.toolbar-btn:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }
.toolbar-btn-primary { background: #d2460f; border-color: #d2460f; }
.toolbar-btn-primary:hover { background: #b03a0b; }

/* ---------- 纸张 ---------- */
.sheet {
  width: 210mm;
  min-height: 297mm;
  margin: 22px auto 48px;
  background: #fff;
  padding: 11mm 12mm 9mm;
  box-shadow: 0 18px 50px -18px rgba(11, 27, 43, 0.5);
  display: flex;
  flex-direction: column;
  color: #000;
}

/* ---------- 页眉 ---------- */
.sheet-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding-bottom: 2.6mm; border-bottom: 0.6mm solid var(--line-strong);
}
.sheet-brand { display: flex; align-items: center; gap: 2.4mm; }
.sheet-logo { color: var(--accent); flex: none; width: 7.4mm; height: 7.4mm; }
.sheet-brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.sheet-brand-text strong { font-size: 12.5pt; letter-spacing: 0.08em; }
.sheet-brand-text span { font-size: 6.2pt; letter-spacing: 0.2em; color: var(--muted); font-family: var(--mono); }
.sheet-doc { text-align: right; line-height: 1.3; }
.sheet-doc span { display: block; font-size: 6.6pt; letter-spacing: 0.16em; color: var(--muted); font-family: var(--mono); text-transform: uppercase; }
.sheet-doc strong { font-family: var(--mono); font-size: 10.5pt; }

/* ---------- 标题区 ---------- */
.sheet-title { padding: 3.4mm 0 3mm; border-bottom: 0.25mm solid var(--line); }
.sheet-std {
  font-family: var(--mono); font-size: 7.6pt; letter-spacing: 0.06em; color: var(--steel);
  text-transform: uppercase; margin-bottom: 1.4mm;
}
.sheet-title h1 {
  margin: 0; font-size: 17.5pt; line-height: 1.2; letter-spacing: -0.01em; font-weight: 800;
}
.sheet-sub { display: flex; flex-wrap: wrap; gap: 0 4mm; margin-top: 1.8mm; font-size: 7.6pt; color: var(--steel); }
.sheet-sub span { position: relative; }
.sheet-sub span + span::before { content: "·"; position: absolute; left: -2.4mm; color: var(--line); }

/* ---------- 主体：图 + 尺寸 ---------- */
.sheet-main {
  display: grid; grid-template-columns: 118mm 64mm; gap: 4mm;
  padding: 2.4mm 0 1.8mm; align-items: start;
}
.sheet-drawing { min-width: 0; }
.sheet-drawing svg { display: block; width: 100%; height: auto; }
.sheet-caption { margin: 1.2mm 0 0; font-size: 6.4pt; color: var(--muted); text-align: center; }
.drawing-missing { padding: 30mm 0; text-align: center; color: var(--muted); border: 0.3mm dashed var(--line); }

.sheet-dim { width: 100%; border: 0.25mm solid var(--line-strong); border-collapse: collapse; }
.sheet-dim th {
  background: #f2f5f8; font-size: 6.6pt; font-weight: 600; letter-spacing: 0.06em;
  color: var(--steel); text-align: left; padding: 1.2mm 2mm; border-bottom: 0.25mm solid var(--line-strong);
}
.sheet-dim th.ta-right, .sheet-dim td.value { text-align: right; }
.sheet-dim td { padding: 1.15mm 2mm; border-bottom: 0.2mm solid #dde4ec; font-size: 8.2pt; }
.sheet-dim tr:last-child td { border-bottom: 0; }
.sheet-dim th:nth-child(1) { width: 11mm; white-space: nowrap; }
.sheet-dim .sym { font-family: var(--mono); font-weight: 700; color: var(--accent); width: 9mm; }
.sheet-dim .value { font-family: var(--mono); font-weight: 700; font-size: 9pt; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sheet-dim .unit { font-size: 6.4pt; color: var(--muted); font-weight: 400; margin-left: 1mm; }

/* ---------- 下部：p/T + 说明 ---------- */
.sheet-lower {
  display: grid; grid-template-columns: 1.32fr 1fr; gap: 4mm;
  border-top: 0.25mm solid var(--line);
  padding-top: 2mm;
}
.sheet-block h2 {
  font-size: 7.2pt; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel); margin: 0 0 1.6mm; font-weight: 700;
}
.sheet-block h2::before {
  content: ""; display: inline-block; width: 1.6mm; height: 1.6mm;
  background: var(--accent); margin-right: 1.6mm; vertical-align: 0.2mm;
}
.pt-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8mm 1.2mm; }
.pt-cell {
  display: flex; flex-direction: column; gap: 0.2mm;
  border: 0.2mm solid var(--line); border-radius: 0.8mm; padding: 0.8mm 1.4mm;
  background: #fafbfd;
}
.pt-cell b { font-family: var(--mono); font-size: 6.4pt; color: var(--muted); font-weight: 500; }
.pt-cell em { font-family: var(--mono); font-size: 8pt; font-style: normal; font-weight: 700; }
.sheet-source { margin: 1.4mm 0 0; font-size: 6.2pt; color: var(--muted); line-height: 1.45; }
.sheet-text { margin: 0 0 1.4mm; font-size: 7pt; line-height: 1.55; color: #1f2d3d; }
.sheet-text strong { font-weight: 700; }

/* ---------- 手写备注 ---------- */
.sheet-blanknotes { margin-top: 3mm; flex: 1; display: flex; flex-direction: column; }
.sheet-blanknotes h2 {
  font-size: 7pt; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--steel); margin: 0 0 1.2mm; font-weight: 700;
}
.sheet-blanknotes h2::before {
  content: ""; display: inline-block; width: 1.6mm; height: 1.6mm;
  background: var(--accent); margin-right: 1.6mm; vertical-align: 0.2mm;
}
.blank-lines { flex: 1; display: flex; flex-direction: column; justify-content: space-between; padding-top: 1mm; }
.blank-lines i { display: block; height: 3mm; border-bottom: 0.2mm solid #cdd6e0; }

/* ---------- 生产签核 ---------- */
.sheet-signoff {
  display: flex; align-items: baseline; gap: 8mm;
  margin-top: 2mm; padding-top: 1.6mm; border-top: 0.2mm dashed var(--line);
  font-size: 7pt; color: var(--steel);
}
.signoff-item { display: inline-flex; align-items: baseline; gap: 1.5mm; }
.signoff-item i { display: inline-block; width: 26mm; border-bottom: 0.2mm solid var(--line-strong); height: 3.2mm; }
.signoff-note { margin-left: auto; font-size: 6.2pt; color: var(--muted); }

/* ---------- 页脚 ---------- */
.sheet-footer {
  margin-top: auto; padding-top: 2.4mm; border-top: 0.25mm solid var(--line);
  display: flex; gap: 5mm; align-items: flex-start;
}
.sheet-foot-main { flex: 1; }
.sheet-foot-main p { margin: 0 0 0.8mm; font-size: 6.3pt; line-height: 1.5; color: #2b3a4a; }
.sheet-foot-main .sheet-disclaimer { color: var(--muted); }
.sheet-foot-qr { flex: none; width: 18mm; text-align: center; }
.sheet-foot-qr .qr-svg { display: block; width: 16mm; height: 16mm; margin: 0 auto 0.8mm; }
.sheet-foot-qr span { display: block; font-size: 6pt; color: var(--muted); }
.sheet-foot-side { text-align: right; flex: none; }
.sheet-foot-side p { margin: 0 0 0.6mm; font-size: 6.3pt; color: var(--muted); font-family: var(--mono); }
.sheet-foot-side .sheet-url { max-width: 64mm; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- 打印 ---------- */
/* 批量打印：每张规格卡一页 */
.batch-body { background: #dfe5ec; }
.batch-body .sheet { margin: 18px auto; }

@media print {
  html, body { background: #fff; }
  .batch-body .sheet { break-after: page; page-break-after: always; margin: 0; }
  .batch-body .sheet:last-child { break-after: auto; page-break-after: auto; }
  .toolbar-group {
  display: flex; align-items: center; gap: 6px; flex: none;
}
.toolbar-group label { font-size: 11.5px; color: #9fb2c5; white-space: nowrap; }
.toolbar-group select {
  font-family: var(--font); font-size: 12px; padding: 6px 8px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08); color: #fff;
}
.toolbar-group select option { color: #0b1b2b; background: #fff; }

.print-hint { display: none !important; }
  .toolbar-group {
  display: flex; align-items: center; gap: 6px; flex: none;
}
.toolbar-group label { font-size: 11.5px; color: #9fb2c5; white-space: nowrap; }
.toolbar-group select {
  font-family: var(--font); font-size: 12px; padding: 6px 8px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08); color: #fff;
}
.toolbar-group select option { color: #0b1b2b; background: #fff; }

.print-hint {
  max-width: 210mm; margin: 0 auto; padding: 8px 12mm 10px;
  color: #ffd4c2; font-size: 12px; line-height: 1.6;
}
.print-toolbar { display: none !important; }
  .sheet {
    width: auto; min-height: 277mm; margin: 0; padding: 9mm 11mm 7mm;
    box-shadow: none; break-inside: avoid;
  }
  /* 打印时固定图区高度，避免 Chromium 把内联 SVG 按固有尺寸撑高导致分页 */
  .sheet-drawing { height: 78mm; overflow: hidden; }
  .sheet-drawing svg { width: 100%; height: 100%; font-family: var(--font); }
  .sheet-footer { break-inside: avoid; }
}

@media screen and (max-width: 820px) {
  .print-body { overflow-x: hidden; }
  .sheet { width: 100%; min-height: 0; margin: 0; padding: 16px; box-shadow: none; }
  .sheet-main, .sheet-lower { grid-template-columns: 1fr; }
  .sheet-main { gap: 12px; }
  .toolbar-inner { flex-wrap: wrap; padding: 10px 14px; gap: 8px; }
  .toolbar-hint { flex-basis: 100%; order: 3; }
  .toolbar-actions { width: 100%; flex-wrap: wrap; gap: 6px; }
  .toolbar-btn { flex: 1 1 calc(50% - 3px); justify-content: center; padding: 9px 10px; }
  .toolbar-group {
  display: flex; align-items: center; gap: 6px; flex: none;
}
.toolbar-group label { font-size: 11.5px; color: #9fb2c5; white-space: nowrap; }
.toolbar-group select {
  font-family: var(--font); font-size: 12px; padding: 6px 8px;
  border-radius: 6px; border: 1px solid rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.08); color: #fff;
}
.toolbar-group select option { color: #0b1b2b; background: #fff; }

.print-hint { padding: 8px 14px 10px; font-size: 11.5px; }
  .pt-grid { grid-template-columns: repeat(3, 1fr); }
  .sheet-signoff { flex-wrap: wrap; gap: 4mm 6mm; }
  .signoff-item i { width: 20mm; }
  .sheet-footer { flex-direction: column; }
  .sheet-foot-side { text-align: left; }
}