:root {
  --dr-navy: #06152f;
  --dr-blue: #0b57d0;
  --dr-blue-2: #1f6feb;
  --dr-cyan: #13bfd0;
  --dr-ink: #142033;
  --dr-muted: #66738a;
  --dr-line: #dae4f0;
  --dr-panel: #ffffff;
  --dr-panel-soft: #f7faff;
  --dr-page: #f2f6fb;
  --dr-code: #07111f;
  --dr-runway: rgba(19, 191, 208, 0.18);
}

/* Imported vision articles: keep rich source markup but make it read like a clean
   engineering document inside the Drobotics library shell. */
.dr-clean-article {
  min-width: 0;
}

.dr-clean-section {
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 46px rgba(20, 32, 51, 0.08);
  overflow: hidden;
}

.dr-clean-section > .container {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  padding: clamp(22px, 3vw, 40px) !important;
  overflow: visible !important;
}

.dr-clean-section > .container > section {
  margin: 0 !important;
  padding: clamp(22px, 3vw, 36px) 0 !important;
  border-top: 1px solid rgba(218, 228, 240, 0.72);
}

.dr-clean-section > .container > section:first-child {
  padding-top: 0 !important;
  border-top: 0 !important;
}

.dr-page-shell .section-title {
  margin: 0 0 18px !important;
}

.dr-page-shell .section-title + p[style*="text-align: center"] {
  max-width: 780px !important;
  margin: 0 0 24px !important;
  text-align: left !important;
  color: #40516a !important;
  font-size: 1rem !important;
  line-height: 1.75 !important;
}

.dr-page-shell .system-overview,
.dr-page-shell .algorithm-grid {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 16px !important;
  margin: 22px 0 0 !important;
}

.dr-page-shell .algorithm-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
}

.dr-page-shell .system-card,
.dr-page-shell .algorithm-card,
.dr-page-shell .note-box,
.dr-page-shell div[style*="background: #fff3e0"],
.dr-page-shell div[style*="background: #f9f9f9"] {
  min-width: 0 !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  box-shadow: 0 12px 30px rgba(20, 32, 51, 0.07) !important;
  overflow: hidden !important;
}

.dr-page-shell .system-card {
  display: flex !important;
  flex-direction: column !important;
  border-top: 0 !important;
  transition: border-color 0.18s ease, transform 0.18s ease !important;
}

.dr-page-shell .system-card:hover,
.dr-page-shell .algorithm-card:hover {
  transform: translateY(-2px) !important;
  border-color: rgba(11, 87, 208, 0.34) !important;
}

.dr-page-shell .card-header {
  min-height: 54px !important;
  display: flex !important;
  align-items: center !important;
  padding: 14px 18px !important;
  background: linear-gradient(90deg, #0b57d0, #13bfd0) !important;
  color: #fff !important;
  font-size: 0.95rem !important;
  font-weight: 820 !important;
  line-height: 1.35 !important;
}

.dr-page-shell .card-body {
  padding: 20px !important;
}

.dr-page-shell .card-body h3,
.dr-page-shell .algorithm-title h3 {
  margin-top: 0 !important;
}

.dr-page-shell .feature-list {
  display: grid !important;
  gap: 9px !important;
  margin: 14px 0 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

.dr-page-shell .feature-list li {
  position: relative !important;
  display: block !important;
  padding: 8px 10px 8px 30px !important;
  border: 1px solid rgba(218, 228, 240, 0.82) !important;
  border-radius: 7px !important;
  background: #f8fbff !important;
}

.dr-page-shell .feature-list li::before {
  content: "" !important;
  position: absolute !important;
  left: 11px !important;
  top: 1.05em !important;
  width: 8px !important;
  height: 8px !important;
  border-radius: 999px !important;
  background: var(--dr-cyan) !important;
  margin: 0 !important;
}

.dr-page-shell .workflow-container {
  margin: 24px 0 0 !important;
  padding: clamp(18px, 2.2vw, 28px) !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #f8fbff !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7) !important;
  overflow: visible !important;
}

.dr-page-shell .workflow-container::before {
  display: none !important;
}

.dr-page-shell .workflow-step {
  display: grid !important;
  grid-template-columns: 46px minmax(0, 1fr) !important;
  gap: 14px !important;
  align-items: start !important;
  margin: 0 0 14px !important;
  position: relative !important;
}

.dr-page-shell .workflow-step:last-child {
  margin-bottom: 0 !important;
}

.dr-page-shell .workflow-step::after {
  display: none !important;
}

.dr-page-shell .step-number {
  width: 46px !important;
  height: 46px !important;
  margin: 0 !important;
  border-radius: 8px !important;
  background: var(--dr-blue) !important;
  color: #fff !important;
  font-size: 1rem !important;
  font-weight: 850 !important;
  box-shadow: 0 10px 22px rgba(11, 87, 208, 0.18) !important;
}

.dr-page-shell .step-content,
.dr-page-shell .algorithm-card {
  padding: 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  box-shadow: 0 10px 24px rgba(20, 32, 51, 0.06) !important;
}

.dr-page-shell .step-highlight,
.dr-page-shell .note-box,
.dr-page-shell div[style*="background: #fff3e0"],
.dr-page-shell div[style*="background: #f9f9f9"] {
  margin: 16px 0 0 !important;
  padding: 16px 18px !important;
  border-left: 4px solid var(--dr-blue) !important;
  background: var(--dr-panel-soft) !important;
}

.dr-page-shell .algo-icon {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-width: 44px !important;
  height: 34px !important;
  padding: 0 10px !important;
  border-radius: 7px !important;
  background: #edf4ff !important;
  color: var(--dr-blue) !important;
  font-size: 0.82rem !important;
  font-weight: 850 !important;
}

.dr-page-shell .algorithm-title {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  margin-bottom: 12px !important;
}

.dr-page-shell .code-section {
  margin: 16px 0 0 !important;
  border: 1px solid rgba(7, 17, 31, 0.12) !important;
  border-radius: 8px !important;
  overflow: hidden !important;
  background: var(--dr-code) !important;
  box-shadow: none !important;
}

.dr-page-shell .code-header {
  display: flex !important;
  justify-content: space-between !important;
  gap: 12px !important;
  padding: 11px 14px !important;
  background: rgba(255, 255, 255, 0.06) !important;
  color: #b7c8df !important;
  font-size: 0.82rem !important;
  line-height: 1.45 !important;
}

.dr-page-shell .code-content {
  padding: 16px !important;
  color: #d9e8ff !important;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace !important;
  font-size: 0.9rem !important;
  line-height: 1.62 !important;
  overflow-x: auto !important;
}

.dr-page-shell .code-keyword,
.dr-page-shell .code-number {
  color: #7dd3fc !important;
}

.dr-page-shell .code-comment {
  color: #91a5be !important;
}

.dr-page-shell div[style*="grid-template-columns: repeat(auto-fit, minmax(200px"] {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
  gap: 14px !important;
  margin: 22px 0 !important;
}

.dr-page-shell div[style*="grid-template-columns: repeat(auto-fit, minmax(200px"] > div {
  min-height: 128px !important;
  display: grid !important;
  align-content: center !important;
  gap: 4px !important;
  padding: 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  box-shadow: 0 10px 24px rgba(20, 32, 51, 0.06) !important;
}

.dr-page-shell .highlight,
.dr-page-shell .tech-term {
  display: inline;
  padding: 0.12em 0.42em !important;
  border-radius: 5px !important;
  background: #edf4ff !important;
  color: #174ea6 !important;
  font-weight: 760 !important;
}

@media (max-width: 980px) {
  .dr-page-shell .system-overview,
  .dr-page-shell .algorithm-grid,
  .dr-page-shell div[style*="grid-template-columns: repeat(auto-fit, minmax(200px"] {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (max-width: 640px) {
  .dr-clean-section > .container {
    padding: 18px !important;
  }

  .dr-clean-section > .container > section {
    padding: 22px 0 !important;
  }

  .dr-page-shell .system-overview,
  .dr-page-shell .algorithm-grid,
  .dr-page-shell div[style*="grid-template-columns: repeat(auto-fit, minmax(200px"] {
    grid-template-columns: 1fr !important;
  }

  .dr-page-shell .workflow-step {
    grid-template-columns: 38px minmax(0, 1fr) !important;
    gap: 10px !important;
  }

  .dr-page-shell .step-number {
    width: 38px !important;
    height: 38px !important;
  }

  .dr-page-shell .code-header {
    display: grid !important;
  }
}

html {
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0 !important;
  padding: 0 !important;
  background:
    linear-gradient(180deg, #eef5ff 0, var(--dr-page) 360px, #f8fafc 100%) !important;
  color: var(--dr-ink) !important;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  line-height: 1.68 !important;
  letter-spacing: 0 !important;
  overflow-x: hidden !important;
}

body > header:not(.dr-site-header) {
  display: none !important;
}

a {
  color: var(--dr-blue);
}

img,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
}

.dr-site-header {
  background:
    linear-gradient(132deg, rgba(5, 17, 39, 0.98), rgba(10, 48, 116, 0.96) 54%, rgba(13, 92, 198, 0.94)),
    radial-gradient(circle at 82% 18%, rgba(19, 191, 208, 0.34), transparent 32%);
  color: #fff !important;
  padding: 0 !important;
  text-align: left !important;
  border: 0 !important;
  position: relative;
  overflow: hidden;
}

.dr-site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(115deg, transparent 0 44%, rgba(19, 191, 208, 0.18) 44.2% 44.8%, transparent 45% 100%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
  opacity: 0.58;
}

.dr-site-header::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: 28px;
  width: 420px;
  height: 120px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-left: 5px solid var(--dr-runway);
  border-right: 5px solid var(--dr-runway);
  transform: skewX(-20deg);
  opacity: 0.42;
  pointer-events: none;
}

.dr-site-topbar {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 22px;
}

.dr-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
  color: #fff !important;
  text-decoration: none !important;
}

.dr-brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  padding: 4px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
}

.dr-brand strong,
.dr-brand small {
  display: block;
  line-height: 1.08;
}

.dr-brand strong {
  color: #fff !important;
  font-size: 1.02rem;
  font-weight: 820;
  letter-spacing: 0 !important;
}

.dr-brand small {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: 0.78rem;
}

.dr-primary-nav,
.dr-article-actions,
.dr-footer-nav,
.dr-prev-next {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.dr-primary-nav a,
.dr-article-actions a,
.dr-footer-nav a,
.dr-prev-next a {
  color: inherit !important;
  text-decoration: none !important;
}

.dr-primary-nav a {
  white-space: nowrap;
  padding: 9px 12px !important;
  border-radius: 7px !important;
  color: rgba(255, 255, 255, 0.78) !important;
  font-weight: 720 !important;
  margin: 0 !important;
}

.dr-primary-nav a::after {
  display: none !important;
}

.dr-primary-nav a:hover,
.dr-primary-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.14) !important;
  color: #fff !important;
}

.dr-site-search {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(140px, 190px) auto;
  gap: 8px;
  align-items: center;
  max-width: 720px;
  margin-left: auto;
}

.dr-site-search input,
.dr-site-search select,
.dr-site-search button,
.dr-search-page-form input,
.dr-search-page-form select,
.dr-search-page-form button {
  min-height: 40px;
  border-radius: 7px;
  font: inherit;
}

.dr-site-search input,
.dr-site-search select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 0 11px;
}

.dr-site-search input::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

.dr-site-search select option {
  color: var(--dr-ink);
}

.dr-site-search button,
.dr-search-page-form button {
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: #fff;
  color: var(--dr-blue);
  padding: 0 14px;
  font-weight: 820;
  cursor: pointer;
}

.dr-site-search button:hover {
  background: #edf4ff;
}

.dr-article-hero {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 50px 24px 54px;
}

.dr-article-hero p {
  margin: 0 0 12px !important;
  color: rgba(255, 255, 255, 0.74) !important;
  font-size: 0.92rem !important;
  font-weight: 820 !important;
  text-transform: uppercase;
  letter-spacing: 0.08em !important;
}

.dr-article-hero h1 {
  max-width: 980px;
  margin: 0 !important;
  color: #fff !important;
  font-size: clamp(2rem, 4vw, 4.1rem) !important;
  line-height: 1.08 !important;
  font-weight: 850 !important;
  letter-spacing: 0 !important;
  text-align: left !important;
  text-shadow: none !important;
}

.dr-article-actions {
  margin-top: 24px;
}

.dr-article-actions a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 7px;
  padding: 0 15px;
  background: rgba(255, 255, 255, 0.11);
  color: #fff !important;
  font-weight: 760;
  backdrop-filter: blur(10px);
}

.dr-section-nav {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 28px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.dr-mobile-section-links {
  display: none;
}

.dr-site-menu {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.dr-site-menu summary {
  cursor: pointer;
  list-style: none;
  padding: 13px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: #fff;
  font-weight: 800;
}

.dr-site-menu summary::-webkit-details-marker {
  display: none;
}

.dr-site-menu summary::after {
  content: "+";
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.13);
}

.dr-site-menu[open] summary::after {
  content: "-";
}

.dr-site-menu-panel {
  display: grid;
  gap: 6px;
  padding: 0 12px 12px;
}

.dr-site-menu-panel a {
  padding: 8px 9px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.76) !important;
  text-decoration: none !important;
  font-size: 0.86rem;
  line-height: 1.35;
}

.dr-site-menu-panel a:hover,
.dr-site-menu-panel a[aria-current="page"],
.dr-site-menu-panel .dr-all-link {
  background: rgba(255, 255, 255, 0.12);
  color: #fff !important;
}

.dr-page-shell {
  max-width: 1180px;
  margin: 34px auto;
  padding: 0 24px;
}

.dr-page-shell > .container,
.dr-page-shell > .content,
.dr-page-shell > main,
.dr-page-shell > section,
.dr-page-shell .main-content {
  max-width: 1180px !important;
  margin: 0 auto 26px !important;
}

.dr-page-shell .container,
.dr-page-shell .content,
.dr-page-shell .main-content,
.dr-page-shell .document-container,
.dr-page-shell .content-container,
.dr-page-shell .article-content,
.dr-page-shell .code-section,
.dr-page-shell .card,
.dr-page-shell .system-card,
.dr-page-shell .tech-card,
.dr-page-shell .step-card,
.dr-page-shell .feature-card,
.dr-page-shell .faq-item,
.dr-page-shell .timeline-item {
  background: var(--dr-panel) !important;
  color: var(--dr-ink) !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  box-shadow: 0 16px 38px rgba(20, 32, 51, 0.08) !important;
}

.dr-page-shell .container {
  overflow: hidden !important;
}

.dr-page-shell .content,
.dr-page-shell .main-content,
.dr-page-shell .content-container,
.dr-page-shell .article-content,
.dr-page-shell .document-container {
  padding: 34px !important;
}

.dr-page-shell .container > .header,
.dr-page-shell .doc-header,
.dr-page-shell .hero,
.dr-page-shell .page-header {
  background:
    linear-gradient(135deg, rgba(239, 246, 255, 0.98), rgba(255, 255, 255, 0.96)) !important;
  color: var(--dr-ink) !important;
  border-bottom: 1px solid var(--dr-line) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  margin: 0 !important;
  padding: 30px 34px !important;
  min-height: 0 !important;
  height: auto !important;
  text-align: left !important;
}

.dr-page-shell .container > .header h1 {
  display: none !important;
}

.dr-page-shell .doc-header h1,
.dr-page-shell .hero h2 {
  display: none !important;
}

.dr-page-shell .container > .header p,
.dr-page-shell .doc-header p,
.dr-page-shell .page-header p,
.dr-page-shell .hero p {
  max-width: 860px !important;
  margin: 0 !important;
  color: var(--dr-muted) !important;
  font-size: 1rem !important;
  line-height: 1.72 !important;
  font-weight: 500 !important;
}

.dr-page-shell .version {
  display: inline-flex !important;
  margin-top: 12px !important;
  padding: 4px 10px !important;
  border: 1px solid rgba(15, 75, 221, 0.18) !important;
  border-radius: 6px !important;
  background: #edf4ff !important;
  color: #174ea6 !important;
  font-size: 0.78rem !important;
  font-weight: 720 !important;
}

.dr-page-shell .nav-tabs {
  display: none !important;
}

.dr-page-shell .hero::before,
.dr-page-shell .section-title::after {
  display: none !important;
}

.dr-page-shell .hero-content {
  max-width: 920px !important;
  padding: 0 !important;
  animation: none !important;
}

.dr-page-shell h1,
.dr-page-shell h2,
.dr-page-shell h3,
.dr-page-shell h4 {
  color: var(--dr-ink) !important;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
  letter-spacing: 0 !important;
  text-shadow: none !important;
}

.dr-page-shell h1 {
  font-size: clamp(1.8rem, 3vw, 2.55rem) !important;
  line-height: 1.16 !important;
}

.dr-page-shell h2,
.dr-page-shell .section-title {
  margin: 30px 0 14px !important;
  padding-left: 12px !important;
  border-left: 3px solid var(--dr-blue) !important;
  color: var(--dr-navy) !important;
  font-size: clamp(1.18rem, 1.45vw, 1.42rem) !important;
  line-height: 1.34 !important;
  font-weight: 820 !important;
  text-align: left !important;
  transform: none !important;
  left: auto !important;
}

.dr-page-shell h3,
.dr-page-shell .subsection-title {
  margin: 20px 0 10px !important;
  padding-left: 10px !important;
  border-left: 2px solid var(--dr-cyan) !important;
  color: #173b72 !important;
  font-size: 1.05rem !important;
  line-height: 1.42 !important;
  font-weight: 760 !important;
}

.dr-page-shell h4,
.dr-page-shell .module-title,
.dr-page-shell .lesson-number {
  font-size: 1rem !important;
  line-height: 1.45 !important;
  font-weight: 760 !important;
}

.dr-page-shell p,
.dr-page-shell li,
.dr-page-shell td,
.dr-page-shell th {
  color: var(--dr-ink) !important;
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
}

.dr-page-shell p {
  margin: 0 0 14px !important;
}

.dr-page-shell ul,
.dr-page-shell ol {
  margin: 12px 0 20px 1.35rem !important;
}

.dr-page-shell .badge,
.dr-page-shell .tag,
.dr-page-shell .pill {
  display: inline-flex !important;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px !important;
  border: 1px solid rgba(15, 75, 221, 0.18) !important;
  border-radius: 6px !important;
  background: #edf4ff !important;
  color: #174ea6 !important;
  font-size: 0.78rem !important;
  line-height: 1.35 !important;
  font-weight: 720 !important;
}

.dr-page-shell [style*="font-size"],
.dr-page-shell [style*="font-size"] * {
  font-size: inherit !important;
}

.dr-page-shell h1[style*="font-size"] {
  font-size: clamp(1.8rem, 3vw, 2.55rem) !important;
}

.dr-page-shell h2[style*="font-size"],
.dr-page-shell .section-title[style*="font-size"] {
  font-size: clamp(1.18rem, 1.45vw, 1.42rem) !important;
}

.dr-page-shell h3[style*="font-size"],
.dr-page-shell .subsection-title[style*="font-size"] {
  font-size: 1.05rem !important;
}

.dr-page-shell .info-box,
.dr-page-shell .warning-box,
.dr-page-shell .success-box,
.dr-page-shell .info-card,
.dr-page-shell .warning-card,
.dr-page-shell .success-card,
.dr-page-shell .danger-card,
.dr-page-shell .info-note,
.dr-page-shell .success-note,
.dr-page-shell .warning-note,
.dr-page-shell .note,
.dr-page-shell .highlight-box {
  display: block !important;
  margin: 16px 0 22px !important;
  padding: 16px 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-left: 5px solid var(--dr-blue) !important;
  border-radius: 8px !important;
  background: var(--dr-panel-soft) !important;
  color: var(--dr-ink) !important;
  box-shadow: none !important;
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
}

.dr-page-shell .info-box > :first-child,
.dr-page-shell .warning-box > :first-child,
.dr-page-shell .success-box > :first-child,
.dr-page-shell .info-card > :first-child,
.dr-page-shell .warning-card > :first-child,
.dr-page-shell .success-card > :first-child,
.dr-page-shell .danger-card > :first-child,
.dr-page-shell .info-note > :first-child,
.dr-page-shell .success-note > :first-child,
.dr-page-shell .warning-note > :first-child,
.dr-page-shell .note > :first-child,
.dr-page-shell .highlight-box > :first-child,
.dr-page-shell .output > :first-child,
.dr-page-shell .terminal-output > :first-child {
  margin-top: 0 !important;
}

.dr-page-shell .info-box > :last-child,
.dr-page-shell .warning-box > :last-child,
.dr-page-shell .success-box > :last-child,
.dr-page-shell .info-card > :last-child,
.dr-page-shell .warning-card > :last-child,
.dr-page-shell .success-card > :last-child,
.dr-page-shell .danger-card > :last-child,
.dr-page-shell .info-note > :last-child,
.dr-page-shell .success-note > :last-child,
.dr-page-shell .warning-note > :last-child,
.dr-page-shell .note > :last-child,
.dr-page-shell .highlight-box > :last-child,
.dr-page-shell .output > :last-child,
.dr-page-shell .terminal-output > :last-child {
  margin-bottom: 0 !important;
}

.dr-page-shell .warning-box {
  border-left-color: var(--dr-cyan) !important;
}

.dr-page-shell .warning-card,
.dr-page-shell .danger-card {
  border-left-color: var(--dr-cyan) !important;
}

.dr-page-shell .warning-note {
  border-left-color: var(--dr-cyan) !important;
}

.dr-page-shell .success-box {
  border-left-color: var(--dr-blue) !important;
}

.dr-page-shell .success-card,
.dr-page-shell .info-card {
  border-left-color: var(--dr-blue) !important;
}

.dr-page-shell .success-note,
.dr-page-shell .info-note {
  border-left-color: var(--dr-blue) !important;
}

.dr-page-shell table,
.dr-page-shell .param-table,
.dr-page-shell .troubleshoot-table {
  width: 100% !important;
  border-collapse: collapse !important;
  border-radius: 8px !important;
  overflow: hidden !important;
  background: #fff !important;
  box-shadow: none !important;
}

.dr-page-shell th {
  background: #eaf2ff !important;
  color: #173b72 !important;
  font-weight: 800 !important;
}

.dr-page-shell th,
.dr-page-shell td {
  border: 1px solid var(--dr-line) !important;
  padding: 12px 14px !important;
  text-align: left !important;
}

.dr-page-shell pre,
.dr-page-shell code,
.dr-page-shell .code-block,
.dr-page-shell .command-box,
.dr-page-shell .command,
.dr-page-shell .terminal,
.dr-page-shell #codeContent {
  border-radius: 8px !important;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace !important;
}

.dr-page-shell pre,
.dr-page-shell .code-block,
.dr-page-shell .command-box,
.dr-page-shell .command,
.dr-page-shell .terminal,
.dr-page-shell #codeContent {
  background: var(--dr-code) !important;
  color: #d9e8ff !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04) !important;
  overflow-x: auto !important;
  max-height: 520px !important;
  overflow-y: auto !important;
  white-space: pre-wrap !important;
  overflow-wrap: normal !important;
  word-break: normal !important;
  margin: 12px 0 18px !important;
  padding: 14px 16px !important;
  font-size: 0.9rem !important;
  line-height: 1.6 !important;
}

.dr-page-shell .code-block + .code-block,
.dr-page-shell .command-box + .command-box,
.dr-page-shell .command + .command,
.dr-page-shell .terminal + .terminal {
  margin-top: 8px !important;
}

.dr-page-shell .output,
.dr-page-shell .terminal-output,
.dr-page-shell .lesson-content,
.dr-page-shell .lesson-outcome,
.dr-page-shell .module-desc {
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
  color: var(--dr-ink) !important;
}

.dr-page-shell .output,
.dr-page-shell .terminal-output {
  margin: 14px 0 22px !important;
  padding: 16px 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-left: 4px solid var(--dr-blue) !important;
  border-radius: 8px !important;
  background: #f8fbff !important;
  box-shadow: none !important;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
}

.dr-page-shell .code-block + .info-box,
.dr-page-shell .command-box + .info-box,
.dr-page-shell .code-block + .warning-box,
.dr-page-shell .command-box + .warning-box,
.dr-page-shell .code-block + .success-box,
.dr-page-shell .command-box + .success-box,
.dr-page-shell .code-block + .note,
.dr-page-shell .code-block + .highlight-box,
.dr-page-shell .code-block + .output,
.dr-page-shell .command-box + .output,
.dr-page-shell .command + .info-box,
.dr-page-shell .terminal + .output {
  margin-top: 16px !important;
}

.dr-page-shell .command-box code {
  display: block !important;
  padding: 0 !important;
  background: transparent !important;
  color: inherit !important;
  white-space: pre-wrap !important;
}

.dr-page-shell pre code,
.dr-page-shell .code-block code,
.dr-page-shell .terminal code {
  display: block !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: inherit !important;
  font: inherit !important;
  line-height: inherit !important;
  white-space: pre-wrap !important;
  overflow-wrap: normal !important;
  word-break: normal !important;
}

.dr-page-shell .content-section,
.dr-page-shell .spec-card,
.dr-page-shell .comparison-card,
.dr-page-shell .feature-item,
.dr-page-shell .content-card {
  margin: 0 0 22px !important;
  padding: 22px !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  box-shadow: 0 12px 28px rgba(20, 32, 51, 0.06) !important;
}

.dr-page-shell .content-section {
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.dr-page-shell .spec-grid,
.dr-page-shell .features-grid,
.dr-page-shell .comparison-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
  gap: 14px !important;
  margin: 16px 0 22px !important;
}

.dr-page-shell .spec-item {
  min-width: 0 !important;
  padding: 15px 16px !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #f8fbff !important;
  color: var(--dr-ink) !important;
  font-size: 0.96rem !important;
  line-height: 1.65 !important;
  box-shadow: none !important;
}

.dr-page-shell .feature-item {
  text-align: left !important;
}

.dr-page-shell .feature-item h3,
.dr-page-shell .comparison-card h4 {
  margin-top: 0 !important;
}

.dr-page-shell code,
.dr-page-shell .inline-code {
  background: #edf4ff !important;
  color: #174ea6 !important;
  padding: 0.18em 0.42em !important;
  white-space: normal !important;
}

.dr-page-shell .btn,
.dr-page-shell button,
.dr-page-shell .copy-btn {
  border: 0 !important;
  border-radius: 7px !important;
  background: var(--dr-blue) !important;
  color: #fff !important;
  box-shadow: 0 10px 22px rgba(15, 75, 221, 0.18) !important;
}

.dr-page-shell section {
  padding: 0 !important;
}

.dr-page-shell i[class*="fa-"],
.dr-page-shell .service-icon,
.dr-page-shell .icon,
.dr-page-shell .emoji,
.dr-sidebar-article i[class*="fa-"],
.dr-sidebar-article .service-icon,
.dr-sidebar-article .icon,
.dr-sidebar-article .emoji {
  display: none !important;
}

.dr-sidebar-page {
  max-width: 1360px;
  margin: 34px auto;
  padding: 0 24px;
}

.dr-sidebar-article {
  color: var(--dr-ink);
}

.dr-sidebar-article .menu-toggle {
  display: none !important;
}

.dr-sidebar-article .app-wrapper {
  display: grid !important;
  grid-template-columns: minmax(250px, 310px) minmax(0, 1fr) !important;
  gap: 0 !important;
  min-height: 0 !important;
  overflow: visible !important;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 22px 60px rgba(20, 32, 51, 0.1);
}

.dr-sidebar-article .sidebar {
  position: sticky !important;
  top: 18px !important;
  align-self: start !important;
  width: auto !important;
  height: calc(100vh - 36px) !important;
  max-height: none !important;
  overflow-y: auto !important;
  transform: none !important;
  z-index: 1 !important;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%) !important;
  border-right: 1px solid var(--dr-line) !important;
  border-radius: 8px 0 0 8px;
  box-shadow: none !important;
}

.dr-sidebar-article .sidebar-header {
  padding: 22px 20px 18px !important;
  border-bottom: 1px solid var(--dr-line);
  background:
    linear-gradient(135deg, rgba(237, 244, 255, 0.95), rgba(255, 255, 255, 0.92));
}

.dr-sidebar-article .brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.dr-sidebar-article .brand-logo {
  width: 48px !important;
  height: 48px !important;
  object-fit: contain;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
}

.dr-sidebar-article .brand-name,
.dr-sidebar-article .brand-cn,
.dr-sidebar-article .nav-group-title,
.dr-sidebar-article .sidebar-chip strong {
  display: block;
}

.dr-sidebar-article .brand-name {
  color: var(--dr-navy);
  font-weight: 880;
  letter-spacing: 0;
}

.dr-sidebar-article .brand-cn,
.dr-sidebar-article .sidebar-description,
.dr-sidebar-article .nav-group-desc,
.dr-sidebar-article .nav-footer {
  color: var(--dr-muted);
}

.dr-sidebar-article .sidebar-description {
  margin: 0 0 14px !important;
  font-size: 0.92rem !important;
  line-height: 1.65;
}

.dr-sidebar-article .sidebar-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dr-sidebar-article .sidebar-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid rgba(15, 75, 221, 0.15);
  border-radius: 6px;
  background: #edf4ff;
  color: #174ea6;
  font-size: 0.78rem;
  font-weight: 760;
}

.dr-sidebar-article .nav-menu {
  display: grid;
  gap: 9px;
  padding: 16px 14px;
}

.dr-sidebar-article .nav-group {
  margin: 0 !important;
  padding: 0 !important;
  border: 1px solid rgba(219, 229, 242, 0.9);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.dr-sidebar-article .nav-group-toggle {
  width: 100%;
  display: grid !important;
  grid-template-columns: 32px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 9px;
  min-height: 54px;
  padding: 10px 12px !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: #fff !important;
  color: var(--dr-ink) !important;
  text-align: left;
  box-shadow: none !important;
  cursor: default;
}

.dr-sidebar-article .nav-group-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  background: #edf4ff;
  color: var(--dr-blue);
}

.dr-sidebar-article .nav-group-title {
  color: var(--dr-navy);
  font-weight: 820;
  line-height: 1.2;
}

.dr-sidebar-article .nav-group-desc {
  margin-top: 2px;
  font-size: 0.76rem;
  line-height: 1.25;
}

.dr-sidebar-article .nav-chevron {
  color: var(--dr-muted);
}

.dr-sidebar-article .nav-submenu {
  display: grid !important;
  gap: 3px;
  padding: 0 10px 10px 53px !important;
}

.dr-sidebar-article .nav-submenu a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 5px 8px;
  border-radius: 6px;
  color: #31506f !important;
  text-decoration: none !important;
  font-size: 0.86rem;
  line-height: 1.35;
}

.dr-sidebar-article .nav-submenu a:hover,
.dr-sidebar-article .nav-submenu a.active {
  background: #edf4ff;
  color: var(--dr-blue) !important;
}

.dr-sidebar-article .nav-footer {
  margin: 0 14px 18px;
  padding: 12px;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  font-size: 0.84rem;
  line-height: 1.55;
}

.dr-sidebar-article .main-content {
  min-width: 0;
  padding: 30px clamp(22px, 3.2vw, 44px) 44px !important;
  background:
    linear-gradient(rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.94)),
    linear-gradient(90deg, rgba(15, 75, 221, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(15, 75, 221, 0.05) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

.dr-sidebar-article .doc-hero,
.dr-sidebar-article .doc-card,
.dr-sidebar-article .warning-box,
.dr-sidebar-article .info-box,
.dr-sidebar-article .success-box {
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.07) !important;
}

.dr-sidebar-article .doc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 24px;
  align-items: center;
  margin: 0 0 24px !important;
  padding: 28px !important;
  color: var(--dr-ink) !important;
  background:
    linear-gradient(135deg, rgba(237, 244, 255, 0.96), rgba(255, 255, 255, 0.98)) !important;
}

.dr-sidebar-article .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: var(--dr-blue);
  font-size: 0.82rem;
  font-weight: 820;
  text-transform: uppercase;
}

.dr-sidebar-article h1,
.dr-sidebar-article h2,
.dr-sidebar-article h3,
.dr-sidebar-article h4 {
  color: var(--dr-ink) !important;
  letter-spacing: 0 !important;
  text-shadow: none !important;
}

.dr-sidebar-article .doc-hero h1 {
  margin: 0 0 12px !important;
  color: var(--dr-navy) !important;
  font-size: clamp(2rem, 4vw, 3.3rem) !important;
  line-height: 1.08 !important;
}

.dr-sidebar-article .hero-description {
  max-width: 820px;
  margin: 0 !important;
  color: #38516c !important;
  font-size: 1rem !important;
  line-height: 1.75 !important;
}

.dr-sidebar-article .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.dr-sidebar-article .hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--dr-blue);
  border-radius: 7px;
  background: var(--dr-blue);
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 780;
}

.dr-sidebar-article .hero-action.secondary {
  background: #fff;
  color: var(--dr-blue) !important;
}

.dr-sidebar-article .hero-logo-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 170px;
  border: 1px solid rgba(15, 75, 221, 0.14);
  border-radius: 8px;
  background: #fff;
}

.dr-sidebar-article .hero-logo-panel img {
  max-width: 130px;
  max-height: 130px;
  object-fit: contain;
}

.dr-sidebar-article .overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 24px;
}

.dr-sidebar-article .overview-item {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(20, 32, 51, 0.06);
}

.dr-sidebar-article .overview-item i {
  color: var(--dr-blue);
  font-size: 1.25rem;
}

.dr-sidebar-article .overview-item strong,
.dr-sidebar-article .overview-item span {
  display: block;
}

.dr-sidebar-article .overview-item strong {
  margin: 10px 0 6px;
  color: var(--dr-navy);
  font-weight: 820;
}

.dr-sidebar-article .overview-item span {
  color: var(--dr-muted);
  line-height: 1.55;
}

.dr-sidebar-article .doc-card {
  margin: 0 0 22px !important;
  padding: clamp(20px, 2.6vw, 30px) !important;
}

.dr-sidebar-article .card-title,
.dr-sidebar-article h2 {
  margin: 0 0 14px !important;
  padding-left: 12px !important;
  border-left: 3px solid var(--dr-blue) !important;
  color: var(--dr-navy) !important;
  font-size: clamp(1.18rem, 1.45vw, 1.42rem) !important;
  line-height: 1.34 !important;
  font-weight: 820 !important;
}

.dr-sidebar-article h3 {
  margin: 20px 0 10px !important;
  padding-left: 10px !important;
  border-left: 2px solid var(--dr-cyan) !important;
  color: #173b72 !important;
  font-size: 1.05rem !important;
  line-height: 1.42 !important;
  font-weight: 760 !important;
}

.dr-sidebar-article p,
.dr-sidebar-article li,
.dr-sidebar-article td,
.dr-sidebar-article th {
  color: var(--dr-ink) !important;
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
}

.dr-sidebar-article h4,
.dr-sidebar-article .module-title,
.dr-sidebar-article .lesson-number {
  font-size: 1rem !important;
  line-height: 1.45 !important;
  font-weight: 760 !important;
}

.dr-sidebar-article [style*="font-size"],
.dr-sidebar-article [style*="font-size"] * {
  font-size: inherit !important;
}

.dr-sidebar-article p {
  margin: 0 0 14px !important;
}

.dr-sidebar-article ul,
.dr-sidebar-article ol {
  margin: 12px 0 20px 1.35rem !important;
}

.dr-sidebar-article .warning-box,
.dr-sidebar-article .info-box,
.dr-sidebar-article .success-box {
  display: block !important;
  margin: 16px 0 22px !important;
  padding: 16px 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-left: 5px solid var(--dr-blue) !important;
  border-radius: 8px !important;
  background: var(--dr-panel-soft) !important;
  color: var(--dr-ink) !important;
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
}

.dr-sidebar-article .info-box > :first-child,
.dr-sidebar-article .warning-box > :first-child,
.dr-sidebar-article .success-box > :first-child,
.dr-sidebar-article .output > :first-child,
.dr-sidebar-article .terminal-output > :first-child {
  margin-top: 0 !important;
}

.dr-sidebar-article .info-box > :last-child,
.dr-sidebar-article .warning-box > :last-child,
.dr-sidebar-article .success-box > :last-child,
.dr-sidebar-article .output > :last-child,
.dr-sidebar-article .terminal-output > :last-child {
  margin-bottom: 0 !important;
}

.dr-sidebar-article .warning-box {
  border-left-color: var(--dr-cyan) !important;
}

.dr-sidebar-article .success-box {
  border-left-color: var(--dr-blue) !important;
}

.dr-sidebar-article table,
.dr-sidebar-article .pin-table {
  width: 100% !important;
  border-collapse: collapse !important;
  border-radius: 8px !important;
  overflow: hidden !important;
  background: #fff !important;
}

.dr-sidebar-article th {
  background: #eaf2ff !important;
  color: #173b72 !important;
  font-weight: 820 !important;
}

.dr-sidebar-article th,
.dr-sidebar-article td {
  border: 1px solid var(--dr-line) !important;
  padding: 12px 14px !important;
  text-align: left !important;
}

.dr-sidebar-article .code-block,
.dr-sidebar-article pre {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  max-height: 520px !important;
  overflow-y: auto !important;
  white-space: pre-wrap !important;
  overflow-wrap: normal !important;
  word-break: normal !important;
  margin: 12px 0 18px !important;
  padding: 16px !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  border-radius: 8px !important;
  background: var(--dr-code) !important;
  color: #d9e8ff !important;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace !important;
  font-size: 0.9rem !important;
  line-height: 1.62 !important;
}

.dr-sidebar-article .code-block + .code-block,
.dr-sidebar-article .command + .command,
.dr-sidebar-article .terminal + .terminal {
  margin-top: 8px !important;
}

.dr-sidebar-article .output,
.dr-sidebar-article .terminal-output,
.dr-sidebar-article .lesson-content,
.dr-sidebar-article .lesson-outcome,
.dr-sidebar-article .module-desc {
  font-size: 0.98rem !important;
  line-height: 1.72 !important;
  color: var(--dr-ink) !important;
}

.dr-sidebar-article .output,
.dr-sidebar-article .terminal-output {
  margin: 14px 0 22px !important;
  padding: 16px 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-left: 4px solid var(--dr-blue) !important;
  border-radius: 8px !important;
  background: #f8fbff !important;
  box-shadow: none !important;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif !important;
}

.dr-sidebar-article .code-block + .info-box,
.dr-sidebar-article .code-block + .warning-box,
.dr-sidebar-article .code-block + .success-box,
.dr-sidebar-article .code-block + .output,
.dr-sidebar-article .command + .info-box,
.dr-sidebar-article .terminal + .output {
  margin-top: 16px !important;
}

.dr-related-guides {
  max-width: 1180px;
  margin: 34px auto 0;
  padding: 0 24px;
}

.dr-related-heading {
  margin-bottom: 16px;
}

.dr-related-heading p {
  margin: 0 0 6px !important;
  color: var(--dr-blue);
  font-size: 0.82rem;
  font-weight: 820;
  text-transform: uppercase;
}

.dr-related-heading h2 {
  margin: 0;
  color: var(--dr-navy);
  font-size: 1.65rem;
}

.dr-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.dr-related-grid a,
.dr-index-card a {
  display: block;
  height: 100%;
  padding: 20px;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  color: var(--dr-ink) !important;
  text-decoration: none !important;
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.08);
  position: relative;
  overflow: hidden;
}

.dr-index-card a::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 3px;
  background: linear-gradient(90deg, var(--dr-blue), var(--dr-cyan));
  opacity: 0.75;
}

.dr-drone-card a {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.98)),
    linear-gradient(135deg, rgba(11, 87, 208, 0.08), transparent 55%) !important;
}

.dr-drone-card h2::after {
  content: " / UAV";
  color: #8aa0bf;
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.04em;
}

.dr-related-grid a:hover,
.dr-index-card a:hover {
  border-color: rgba(15, 75, 221, 0.42);
  transform: translateY(-2px);
}

.dr-related-grid span,
.dr-index-card span {
  color: var(--dr-blue);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.dr-related-grid strong,
.dr-index-card h2 {
  display: block;
  margin: 10px 0 8px;
  color: var(--dr-ink);
  font-size: 1.12rem;
  line-height: 1.3;
}

.dr-related-grid small,
.dr-index-card p {
  display: block;
  color: var(--dr-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.dr-site-footer {
  margin-top: 42px;
  padding: 34px 24px 40px;
  background: var(--dr-navy);
  color: rgba(255, 255, 255, 0.78);
}

.dr-prev-next,
.dr-footer-nav,
.dr-site-footer p {
  max-width: 1180px;
  margin-left: auto !important;
  margin-right: auto !important;
}

.dr-prev-next {
  margin-bottom: 24px !important;
  align-items: stretch;
}

.dr-prev-next a {
  flex: 1 1 280px;
  min-height: 76px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff !important;
  font-weight: 760;
}

.dr-prev-next span {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.dr-footer-nav a {
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
}

.dr-site-footer p {
  margin-top: 18px !important;
  color: rgba(255, 255, 255, 0.62) !important;
  font-size: 0.92rem !important;
}

.dr-index-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 24px 58px;
}

.dr-search-page-panel {
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.08);
  padding: 22px;
}

.dr-search-page-form {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(180px, 240px) auto;
  gap: 12px;
  align-items: end;
}

.dr-search-page-form label {
  display: grid;
  gap: 7px;
  color: var(--dr-navy);
  font-weight: 780;
}

.dr-search-page-form input,
.dr-search-page-form select {
  width: 100%;
  border: 1px solid var(--dr-line);
  background: #fff;
  color: var(--dr-ink);
  padding: 0 12px;
}

.dr-search-page-form button {
  min-width: 104px;
  border-color: var(--dr-blue);
  background: var(--dr-blue);
  color: #fff;
}

.dr-battery-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(6, 21, 47, 0.62);
  backdrop-filter: blur(8px);
}

.dr-battery-dialog {
  width: min(560px, 100%);
  border: 1px solid rgba(218, 228, 240, 0.92);
  border-radius: 10px;
  background: #fff;
  color: var(--dr-ink);
  box-shadow: 0 28px 90px rgba(6, 21, 47, 0.28);
  overflow: hidden;
}

.dr-battery-header {
  padding: 22px 24px 18px;
  background: linear-gradient(135deg, #06152f, #0b57d0);
  color: #fff;
}

.dr-battery-header p {
  margin: 0 0 7px !important;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: 0.78rem !important;
  font-weight: 820;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.dr-battery-header h2 {
  margin: 0 !important;
  color: #fff !important;
  font-size: clamp(1.35rem, 4vw, 1.9rem) !important;
  line-height: 1.18 !important;
}

.dr-battery-body {
  padding: 22px 24px 24px;
}

.dr-battery-body p {
  margin: 0 0 14px !important;
  color: #40516a !important;
  line-height: 1.7 !important;
}

.dr-battery-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 20px;
  padding: 0;
  list-style: none;
}

.dr-battery-list li {
  padding: 11px 12px;
  border: 1px solid var(--dr-line);
  border-left: 4px solid var(--dr-blue);
  border-radius: 8px;
  background: #f7faff;
  color: var(--dr-ink);
  line-height: 1.5;
}

.dr-battery-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.dr-battery-actions button,
.dr-battery-actions a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border-radius: 8px;
  font: inherit;
  font-weight: 820;
  text-decoration: none !important;
  cursor: pointer;
}

.dr-battery-actions button {
  border: 1px solid var(--dr-blue);
  background: var(--dr-blue);
  color: #fff;
}

.dr-battery-actions a {
  border: 1px solid var(--dr-line);
  background: #fff;
  color: var(--dr-blue) !important;
}

.dr-page-shell .dr-mavlink-link-grid,
.dr-sidebar-article .dr-mavlink-link-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
  gap: 12px !important;
  margin: 16px 0 0 !important;
}

.dr-page-shell .dr-mavlink-link-grid a,
.dr-sidebar-article .dr-mavlink-link-grid a {
  display: block !important;
  min-height: 148px !important;
  padding: 18px !important;
  border: 1px solid var(--dr-line) !important;
  border-radius: 8px !important;
  background: #fff !important;
  color: var(--dr-ink) !important;
  text-decoration: none !important;
  box-shadow: 0 12px 28px rgba(20, 32, 51, 0.07) !important;
}

.dr-page-shell .dr-mavlink-link-grid a:hover,
.dr-sidebar-article .dr-mavlink-link-grid a:hover {
  border-color: rgba(11, 87, 208, 0.42) !important;
  transform: translateY(-2px) !important;
}

.dr-page-shell .dr-mavlink-link-grid span,
.dr-sidebar-article .dr-mavlink-link-grid span {
  display: block !important;
  color: var(--dr-blue) !important;
  font-size: 0.76rem !important;
  font-weight: 850 !important;
  text-transform: uppercase !important;
}

.dr-page-shell .dr-mavlink-link-grid strong,
.dr-sidebar-article .dr-mavlink-link-grid strong {
  display: block !important;
  margin: 10px 0 8px !important;
  color: var(--dr-navy) !important;
  font-size: 1.03rem !important;
  line-height: 1.35 !important;
}

.dr-page-shell .dr-mavlink-link-grid small,
.dr-sidebar-article .dr-mavlink-link-grid small {
  display: block !important;
  color: var(--dr-muted) !important;
  font-size: 0.9rem !important;
  line-height: 1.55 !important;
}

.dr-page-shell .dr-code-intro {
  padding: clamp(22px, 3vw, 36px) !important;
  border-bottom: 1px solid var(--dr-line) !important;
  background: linear-gradient(180deg, #fff, #f7faff) !important;
}

.dr-page-shell .dr-code-intro h1 {
  margin: 6px 0 12px !important;
  color: var(--dr-navy) !important;
  font-size: clamp(1.7rem, 3vw, 2.6rem) !important;
  line-height: 1.14 !important;
}

.dr-page-shell .dr-code-intro p {
  max-width: 860px !important;
  margin: 0 0 10px !important;
  color: #40516a !important;
  line-height: 1.75 !important;
}

.dr-mission-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 18px;
  align-items: stretch;
  margin-bottom: 28px;
}

.dr-mission-panel > div {
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.08);
  padding: 24px;
}

.dr-mission-panel h2 {
  margin: 8px 0 12px;
  color: var(--dr-navy);
  font-size: clamp(1.55rem, 2.4vw, 2.3rem);
  line-height: 1.12;
}

.dr-mission-panel p {
  margin: 0;
  color: #40516a;
  font-size: 1.02rem;
}

.dr-kicker {
  color: var(--dr-blue);
  font-size: 0.78rem;
  font-weight: 860;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dr-telemetry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.dr-telemetry-grid div {
  border: 1px solid rgba(11, 87, 208, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(11, 87, 208, 0.08), rgba(19, 191, 208, 0.05)),
    #f8fbff;
  padding: 14px;
}

.dr-telemetry-grid span {
  display: block;
  color: var(--dr-muted);
  font-size: 0.72rem;
  font-weight: 840;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dr-telemetry-grid strong {
  display: block;
  margin-top: 4px;
  color: var(--dr-ink);
  font-size: 0.98rem;
}

.dr-home-focus {
  margin-top: 34px;
}

.dr-company-hero,
.dr-contact-layout,
.dr-company-band {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 18px;
  align-items: stretch;
  margin-bottom: 26px;
}

.dr-company-hero > div,
.dr-contact-layout > div,
.dr-company-band {
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.08);
  padding: 24px;
}

.dr-company-hero h2,
.dr-contact-intro h2,
.dr-company-band h2,
.dr-section-heading h2 {
  margin: 8px 0 12px;
  color: var(--dr-navy);
  font-size: clamp(1.55rem, 2.4vw, 2.3rem);
  line-height: 1.12;
}

.dr-company-hero p,
.dr-contact-intro p,
.dr-company-band p {
  margin: 0;
  color: #40516a;
  font-size: 1.02rem;
}

.dr-company-metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.dr-company-metrics div,
.dr-contact-card,
.dr-contact-grid article {
  border: 1px solid rgba(11, 87, 208, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(11, 87, 208, 0.08), rgba(19, 191, 208, 0.05)),
    #f8fbff;
  padding: 16px;
}

.dr-company-metrics span,
.dr-contact-grid span {
  display: block;
  color: var(--dr-blue);
  font-size: 0.75rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dr-company-metrics strong {
  display: block;
  margin-top: 5px;
  color: var(--dr-ink);
}

.dr-company-section,
.dr-contact-grid {
  margin-top: 30px;
}

.dr-section-heading {
  margin-bottom: 14px;
}

.dr-company-band {
  margin-top: 30px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.dr-contact-card h2,
.dr-contact-grid h2 {
  margin: 8px 0 8px;
  color: var(--dr-navy);
  font-size: 1.18rem;
}

.dr-contact-card p {
  margin: 0 0 8px;
  font-size: 1.08rem;
  font-weight: 780;
}

.dr-contact-card a {
  color: var(--dr-blue) !important;
}

.dr-contact-card small,
.dr-contact-grid p {
  color: var(--dr-muted);
  line-height: 1.55;
}

.dr-contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.dr-image-insert-panel {
  margin-bottom: 16px;
}

.dr-image-upload-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  align-items: center;
}

.dr-image-upload-controls input[type="file"] {
  max-width: 280px;
  border: 1px solid var(--dr-line);
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}

.dr-image-upload-status {
  margin: 12px 0 0 !important;
  color: var(--dr-muted);
  font-size: 0.92rem;
}

.dr-image-upload-status.is-error {
  color: #b42318;
}

.dr-clean-article figure.dr-article-image,
.dr-sidebar-article figure.dr-article-image {
  margin: 24px 0;
}

.dr-clean-article figure.dr-article-image img,
.dr-sidebar-article figure.dr-article-image img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--dr-line);
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.1);
}

.dr-index-intro p {
  max-width: 840px;
  color: var(--dr-muted) !important;
  font-size: 1.08rem;
}

.dr-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.dr-index-card {
  margin: 0 !important;
}

.dr-index-card a {
  min-height: 212px;
}

@media (max-width: 1100px) {
  .dr-site-topbar {
    align-items: flex-start;
    grid-template-columns: 1fr;
  }

  .dr-primary-nav {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  .dr-site-search {
    width: 100%;
    max-width: none;
    margin-left: 0;
  }

  .dr-section-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dr-mission-panel {
    grid-template-columns: 1fr;
  }

  .dr-company-hero,
  .dr-contact-layout,
  .dr-company-band {
    grid-template-columns: 1fr;
  }

  .dr-telemetry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dr-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .dr-site-topbar {
    padding-top: 14px;
    gap: 14px;
  }

  .dr-primary-nav {
    margin-left: -4px;
  }

  .dr-primary-nav a {
    flex: 0 0 auto;
    text-align: center;
    padding: 8px 10px !important;
    font-size: 0.92rem;
  }

  .dr-site-search,
  .dr-search-page-form {
    grid-template-columns: 1fr;
  }

  .dr-section-nav,
  .dr-related-grid {
    grid-template-columns: 1fr;
  }

  .dr-contact-grid {
    grid-template-columns: 1fr;
  }

  .dr-section-nav {
    display: flex !important;
    gap: 8px;
    align-items: flex-start;
    overflow-x: auto;
    overflow-y: visible;
    padding: 0 18px 20px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .dr-section-nav::-webkit-scrollbar {
    display: none;
  }

  .dr-site-menu {
    flex: 0 0 auto;
    min-width: 112px;
    max-width: 150px;
    border-radius: 7px;
    overflow: visible;
    scroll-snap-align: start;
  }

  .dr-site-menu summary {
    min-height: 42px;
    padding: 9px 11px;
    gap: 8px;
    white-space: nowrap;
    font-size: 0.95rem;
  }

  .dr-site-menu summary::after {
    width: 20px;
    height: 20px;
    border-radius: 5px;
  }

  .dr-site-menu-panel {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 48px;
    z-index: 5;
    max-height: 230px;
    overflow-y: auto;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    background: rgba(16, 45, 103, 0.98);
    box-shadow: 0 18px 44px rgba(3, 18, 46, 0.28);
  }

  .dr-site-menu-panel a {
    min-height: 38px;
    padding: 8px 10px;
    overflow-wrap: anywhere;
  }

  .dr-section-nav {
    display: none !important;
  }

  .dr-mobile-section-links {
    position: relative;
    z-index: 2;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 18px 22px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .dr-mobile-section-links::-webkit-scrollbar {
    display: none;
  }

  .dr-mobile-section-links a {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 12px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
    text-decoration: none !important;
    font-size: 0.9rem;
    font-weight: 760;
    white-space: nowrap;
  }

  .dr-mobile-section-links a[aria-current="page"] {
    background: rgba(255, 255, 255, 0.18);
  }

  .dr-article-hero {
    padding-top: 32px;
    padding-bottom: 36px;
  }

  .dr-article-hero h1 {
    font-size: clamp(1.82rem, 8vw, 2.45rem) !important;
  }

  .dr-article-hero p {
    font-size: 0.78rem !important;
  }

  .dr-article-actions {
    gap: 8px;
  }

  .dr-article-actions a {
    min-height: 40px;
    padding: 0 12px;
    font-size: 0.92rem;
  }

  .dr-page-shell .content,
  .dr-page-shell .main-content,
  .dr-page-shell .container > .header,
  .dr-page-shell .hero {
    padding: 24px !important;
  }

  .dr-sidebar-page {
    margin: 24px auto;
    padding: 0 18px;
  }

  .dr-sidebar-article .app-wrapper {
    display: block !important;
    grid-template-columns: 1fr !important;
    overflow: visible !important;
  }

  .dr-sidebar-article .sidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: min(86vw, 330px) !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    z-index: 120 !important;
    overflow-y: auto !important;
    transform: translateX(-105%) !important;
    transition: transform 0.24s ease !important;
    border-right: 1px solid var(--dr-line) !important;
    border-bottom: 0 !important;
    border-radius: 0 !important;
    box-shadow: 18px 0 42px rgba(6, 21, 47, 0.22) !important;
  }

  .dr-sidebar-article .sidebar.mobile-open {
    transform: translateX(0) !important;
  }

  .dr-sidebar-article .menu-toggle {
    position: sticky !important;
    top: 12px !important;
    z-index: 110 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    min-height: 42px !important;
    margin: 0 0 14px !important;
    padding: 0 14px !important;
    border: 1px solid rgba(11, 87, 208, 0.28) !important;
    border-radius: 8px !important;
    background: var(--dr-blue) !important;
    color: #fff !important;
    font-weight: 820 !important;
    box-shadow: 0 12px 28px rgba(11, 87, 208, 0.22) !important;
  }

  .dr-sidebar-article .menu-toggle i {
    display: none !important;
  }

  .dr-sidebar-article .menu-toggle::before {
    content: "Menu" !important;
    font-size: 0.88rem !important;
    letter-spacing: 0 !important;
  }

  .dr-sidebar-article .main-content::before {
    content: "" !important;
    position: fixed !important;
    inset: 0 !important;
    z-index: 90 !important;
    background: rgba(6, 21, 47, 0.42) !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transition: opacity 0.2s ease !important;
  }

  .dr-sidebar-article .sidebar.mobile-open + .main-content::before {
    opacity: 1 !important;
    pointer-events: auto !important;
  }

  .dr-sidebar-article .nav-menu {
    grid-template-columns: 1fr;
  }

  .dr-sidebar-article .main-content {
    padding: 16px 18px 32px !important;
  }

  .dr-sidebar-article .doc-hero {
    grid-template-columns: 1fr;
  }

  .dr-sidebar-article .hero-logo-panel {
    display: none;
  }

  .dr-sidebar-article .overview-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .dr-site-topbar,
  .dr-article-hero,
  .dr-section-nav,
  .dr-page-shell,
  .dr-related-guides,
  .dr-index-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .dr-brand {
    min-width: 0;
  }

  .dr-brand img {
    width: 40px;
    height: 40px;
  }

  .dr-index-grid {
    grid-template-columns: 1fr;
  }

  .dr-site-header::after {
    display: none;
  }

  .dr-site-topbar,
  .dr-article-hero {
    padding-left: 14px;
    padding-right: 14px;
  }

  .dr-primary-nav {
    gap: 7px;
    width: calc(100% + 14px);
  }

  .dr-primary-nav a {
    background: rgba(255, 255, 255, 0.08);
  }

  .dr-site-search {
    gap: 7px;
  }

  .dr-sidebar-article .dr-mavlink-link-grid,
  .dr-page-shell .dr-mavlink-link-grid {
    grid-template-columns: 1fr !important;
  }

  .dr-sidebar-article .dr-mavlink-link-grid a,
  .dr-page-shell .dr-mavlink-link-grid a {
    min-height: 0 !important;
    padding: 16px !important;
  }

  .dr-mission-panel > div,
  .dr-clean-section,
  .dr-index-card a,
  .dr-related-grid a {
    padding: 18px !important;
  }

  .dr-telemetry-grid {
    grid-template-columns: 1fr;
  }

  .dr-fact-grid {
    grid-template-columns: 1fr;
  }

  .dr-page-shell table,
  .dr-page-shell .param-table,
  .dr-page-shell .troubleshoot-table {
    display: block;
    max-width: 100%;
    overflow-x: auto !important;
  }

  .dr-page-shell pre,
  .dr-page-shell .code-block,
  .dr-page-shell .command,
  .dr-page-shell .terminal,
  .dr-page-shell #codeContent {
    white-space: pre-wrap !important;
    overflow-wrap: anywhere !important;
  }

  .dr-sidebar-page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .dr-sidebar-article .sidebar-header,
  .dr-sidebar-article .main-content,
  .dr-sidebar-article .doc-hero,
  .dr-sidebar-article .doc-card {
    padding: 18px !important;
  }

  .dr-sidebar-article .nav-submenu {
    padding-left: 14px !important;
  }

  .dr-sidebar-article table,
  .dr-sidebar-article .pin-table {
    display: block;
    max-width: 100%;
    overflow-x: auto !important;
  }

  .dr-sidebar-article pre,
  .dr-sidebar-article .code-block {
    white-space: pre-wrap !important;
    overflow-wrap: anywhere !important;
  }
}