:root {
  color-scheme: light;
  --doc-bg: #f7f9fb;
  --doc-paper: #ffffff;
  --doc-text: #172334;
  --doc-muted: #5f7184;
  --doc-line: #d9e2ec;
  --doc-accent: #006f91;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--doc-bg);
  color: var(--doc-text);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.72;
}
.manual-document {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}
.manual-document-header {
  margin-bottom: 18px;
  padding: 22px 24px;
  border: 1px solid var(--doc-line);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0, 111, 145, 0.08), rgba(10, 138, 103, 0.06)), var(--doc-paper);
}
.manual-document-header p {
  margin: 0;
  color: var(--doc-muted);
}
.manual-document-header h1 {
  margin: 6px 0 8px;
  font-size: clamp(1.45rem, 2.6vw, 2.2rem);
  line-height: 1.18;
  color: #071723;
}
.manual-scope-note {
  margin-top: 14px !important;
  padding: 12px 14px;
  border: 1px solid rgba(0, 111, 145, 0.2);
  border-left: 5px solid var(--doc-accent);
  border-radius: 10px;
  background: #f3f9fa;
  color: #294b5d !important;
}
.manual-document-body {
  padding: 28px 34px;
  border: 1px solid var(--doc-line);
  border-radius: 18px;
  background: var(--doc-paper);
  box-shadow: 0 18px 54px rgba(36, 63, 92, 0.12);
  overflow-wrap: anywhere;
}
.manual-document-body h1,
.manual-document-body h2,
.manual-document-body h3 {
  color: #071723;
  line-height: 1.24;
}
.manual-document-body h1 { font-size: 1.9rem; }
.manual-document-body h2 {
  margin-top: 2.2rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--doc-line);
  font-size: 1.45rem;
}
.manual-document-body h3 { font-size: 1.18rem; }
.manual-document-body p { margin: 0.7em 0; }
.manual-document-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  display: block;
  overflow-x: auto;
}
.manual-document-body th,
.manual-document-body td {
  border: 1px solid var(--doc-line);
  padding: 9px 10px;
  vertical-align: top;
}
.manual-document-body th {
  background: #eef5f8;
  color: #071723;
}
.manual-document-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.1rem auto;
  border-radius: 10px;
}
.manual-document-body figure {
  margin: 1.2rem 0;
}
.manual-document-body figcaption {
  color: var(--doc-muted);
  font-size: 0.92rem;
  text-align: center;
}
.manual-document-body code,
.manual-document-body pre {
  font-family: Consolas, "Microsoft YaHei UI", monospace;
}
.manual-document-body pre {
  white-space: pre-wrap;
  padding: 14px 16px;
  border: 1px solid var(--doc-line);
  border-radius: 12px;
  background: #f3f7fa;
}
.manual-document-body a { color: var(--doc-accent); }
.manual-doc-meta,
.manual-reader-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 16px;
}
.manual-doc-meta span,
.manual-reader-grid span {
  display: block;
  min-height: 58px;
  padding: 10px 12px;
  border: 1px solid var(--doc-line);
  border-left: 5px solid rgba(0, 111, 145, 0.55);
  border-radius: 10px;
  background: #f8fbfc;
  color: var(--doc-muted);
}
.manual-doc-meta strong,
.manual-reader-grid strong {
  display: block;
  margin-bottom: 4px;
  color: #071723;
}
.manual-document-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.manual-document-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid var(--doc-line);
  border-radius: 999px;
  color: #071723;
  text-decoration: none;
  background: #fff;
}
.manual-reader-intro {
  margin-bottom: 18px;
  padding: 20px 22px;
  border: 1px solid var(--doc-line);
  border-radius: 16px;
  background: #ffffff;
}
.manual-reader-intro h2,
.manual-pdf-pages h2 {
  margin: 0 0 8px;
  color: #071723;
}
.manual-pdf-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.manual-pdf-toc a {
  padding: 7px 11px;
  border: 1px solid var(--doc-line);
  border-radius: 999px;
  background: #fff;
  color: #214258;
  text-decoration: none;
  font-size: 0.92rem;
}
.manual-pdf-pages {
  display: grid;
  gap: 20px;
}
.manual-pdf-page {
  padding: 18px;
  border: 1px solid var(--doc-line);
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 16px 42px rgba(36, 63, 92, 0.10);
}
.manual-pdf-page-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--doc-muted);
}
.manual-pdf-page-head strong {
  color: #071723;
}
.manual-pdf-page figure {
  position: relative;
  margin: 0;
}
.manual-public-title-overlay {
  position: absolute;
  z-index: 2;
  top: 16%;
  left: 22%;
  right: 22%;
  min-height: 7%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem;
  background: #fff;
  color: #111;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: clamp(1rem, 4.1vw, 3.7rem);
  font-weight: 500;
  line-height: 1.25;
  text-align: center;
  pointer-events: none;
}
.manual-pdf-page img {
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  margin: 0 auto;
  border: 1px solid var(--doc-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(17, 34, 50, 0.10);
}
.manual-page-text {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--doc-line);
  border-radius: 12px;
  background: #f8fbfc;
}
.manual-page-text summary {
  cursor: pointer;
  color: #214258;
  font-weight: 700;
}
.manual-page-text p {
  margin: 10px 0 0;
  color: #344a5e;
  font-size: 0.95rem;
}
@media (max-width: 680px) {
  .manual-document { width: min(100% - 18px, 1120px); padding-top: 12px; }
  .manual-document-header,
  .manual-document-body { padding: 18px; border-radius: 14px; }
  .manual-pdf-page { padding: 10px; border-radius: 14px; }
}