:root {
  --ink: #162033;
  --muted: #667085;
  --line: #e1e7f0;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --blue: #2357d6;
  --blue-soft: #eaf1ff;
  --green-soft: #eaf7f1;
  --amber-soft: #fff4e1;
  --amber: #70420b;
  --teal: #0f766e;
  --teal-soft: #e8f7f5;
  --red: #b42318;
  --red-soft: #fff1f0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

a { color: inherit; }
.mobile-topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 20;
  height: 58px;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.mobile-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  text-decoration: none;
}
.mobile-brand img {
  width: 92px;
  height: auto;
  display: block;
}
.mobile-brand strong {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.menu-button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  background: #fff;
  display: grid;
  place-items: center;
  color: var(--ink);
  font-size: 20px;
}
.layout {
  --sidebar-width: 280px;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
  transition: grid-template-columns 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
main {
  display: flex;
  flex-direction: column;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: #fff;
  border-right: 1px solid var(--line);
  padding: 0;
  overflow: visible;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.sidebar-menu {
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex: 1;
  overflow-y: auto;
  padding: 28px 22px 0 22px;
}
.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 22px 28px 22px;
}
.brand {
  display: grid;
  gap: 7px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
  text-decoration: none;
}
.brand-logo {
  width: 146px;
  height: auto;
  display: block;
  margin-bottom: 8px;
}
.brand-collapsed-logo {
  display: none;
}
.brand strong { font-size: 19px; line-height: 1.25; }
.brand span { font-size: 12px; color: var(--muted); line-height: 1.5; }
.nav { display: grid; gap: 4px; }
.nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #344054;
  padding: 11px 12px;
  border-left: 3px solid transparent;
  font-size: 14px;
  line-height: 1.25;
  transition: all 0.2s ease;
}
.nav a.active, .nav a:hover {
  background: var(--blue-soft);
  border-left-color: var(--blue);
  color: #183b8f;
  font-weight: 700;
}
.nav a.active .nav-icon, .nav a:hover .nav-icon {
  color: var(--blue);
}
.nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke-width: 2;
  color: var(--muted);
  transition: color 0.2s ease;
}
.nav-text {
  white-space: nowrap;
  opacity: 1;
  transition: opacity 0.2s ease;
}
.side-foot {
  margin-top: 24px;
  padding: 14px;
  background: #f8fafd;
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.55;
}

/* Sidebar Toggle Premium Button */
.sidebar-toggle {
  position: absolute;
  right: -14px; /* Float on the border line */
  top: 100px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  cursor: pointer;
  z-index: 100;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  padding: 0;
}
.sidebar-toggle:hover {
  background: var(--blue-soft);
  color: var(--blue);
  border-color: var(--blue);
  transform: scale(1.1);
}
.sidebar-toggle .toggle-icon {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
  color: var(--muted);
  transition: transform 0.2s ease;
}
.sidebar-toggle:hover .toggle-icon {
  color: var(--blue);
}

/* Collapsed state styling overrides */
.layout.sidebar-collapsed {
  --sidebar-width: 0px;
}
.layout.sidebar-collapsed .sidebar {
  border-right-width: 0;
}
.layout.sidebar-collapsed .sidebar-menu,
.layout.sidebar-collapsed .sidebar-footer {
  display: none !important;
}
.layout.sidebar-collapsed .sidebar-toggle {
  right: -24px; /* Float on the left screen edge when collapsed */
  box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
}

.side-actions {
  display: grid;
  gap: 8px;
}
.side-actions a, .side-actions button {
  width: 100%;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: #fff;
  color: #344054;
  text-decoration: none;
  font: inherit;
  cursor: pointer;
}
.side-actions .primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
  font-weight: 700;
}

.hero {
  min-height: 86vh;
  padding: 64px clamp(28px, 5vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, .9fr);
  gap: 44px;
  align-items: center;
  background:
    linear-gradient(110deg, rgba(255,255,255,.98), rgba(255,255,255,.94) 50%, rgba(237,245,255,.95)),
    radial-gradient(circle at 88% 16%, rgba(35,87,214,.08), transparent 28%);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  background: var(--blue-soft);
  color: #183b8f;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
}
h1 {
  font-size: clamp(36px, 4vw, 62px);
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: 0;
}
h2 {
  font-size: clamp(26px, 2.5vw, 38px);
  line-height: 1.2;
  margin: 0 0 12px;
  letter-spacing: 0;
}
.hero p, .section-head p {
  color: var(--muted);
  line-height: 1.75;
}
.hero p { font-size: 18px; margin: 0; max-width: 720px; }
.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}
.btn.secondary { background: #fff; color: var(--blue); }
.btn.text { background: transparent; border-color: transparent; color: var(--blue); padding-inline: 0; }

.hero-card, .figure-card {
  background: #fff;
  border: 1px solid #d8e1ef;
  box-shadow: 0 24px 70px rgba(28,43,78,.16);
  padding: 18px;
  display: grid;
  gap: 14px;
}
.hero-card.dashboard {
  padding: 16px;
  gap: 12px;
}
.mock-header {
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}
.mock-window { display: flex; align-items: center; gap: 7px; }
.dot { width: 9px; height: 9px; background: #cfd8e6; }
.mock-title-text { font-size: 13px; color: #344054; font-weight: 700; }
.mock-toolbar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
}
.mock-filter {
  min-height: 32px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  background: #f8fafc;
  border: 1px solid #dfe6ef;
  color: #526071;
  font-size: 12px;
}
.mock-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mock-kpi { background: #f8fafd; border: 1px solid #dfe6ef; padding: 12px; min-height: 78px; }
.mock-kpi strong { display: block; font-size: 20px; color: #183b8f; margin-bottom: 4px; }
.mock-kpi span { display: block; font-size: 12px; color: var(--muted); line-height: 1.35; }
.mock-main { display: grid; grid-template-columns: 1.15fr .85fr; gap: 12px; }
.mock-panel { background: #f8fafc; border: 1px solid #dfe6ef; padding: 14px; min-height: 178px; }
.mock-panel.blue { background: #eef4ff; border-color: #cfddff; }
.mock-panel h4 { margin: 0 0 12px; font-size: 14px; color: #172033; }
.mock-bars { display: grid; gap: 9px; }
.mock-bar { display: grid; grid-template-columns: 70px 1fr 42px; gap: 8px; align-items: center; font-size: 12px; color: #526071; }
.mock-track { height: 9px; background: #dbe5f4; }
.mock-fill { height: 9px; background: var(--blue); }
.mock-list { display: grid; gap: 9px; }
.mock-item { display: flex; justify-content: space-between; gap: 10px; padding: 9px 10px; background: #fff; border: 1px solid #dfe6ef; font-size: 12px; color: #445064; }
.mock-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.mock-step { background: #fff; border: 1px solid #dfe6ef; padding: 10px; text-align: center; font-size: 12px; color: #344054; min-height: 54px; display: grid; place-items: center; }
.mock-chart {
  height: 116px;
  display: flex;
  align-items: end;
  gap: 10px;
  padding-top: 8px;
}
.mock-chart span {
  flex: 1;
  min-height: 18px;
  background: linear-gradient(180deg, #4f7ae8, #2357d6);
}
.mock-chart span:nth-child(2n) { background: linear-gradient(180deg, #2dd4bf, #0f766e); }
.mock-mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mock-mini {
  border: 1px solid #dfe6ef;
  background: #fff;
  padding: 9px;
  min-height: 58px;
}
.mock-mini strong { display: block; color: #172033; font-size: 13px; margin-bottom: 4px; }
.mock-mini span { color: var(--muted); font-size: 11px; }

.content-section {
  padding: 76px clamp(28px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.content-section.alt { background: #f8fafd; }
.section-head { max-width: 920px; margin-bottom: 28px; }
.section-head p { margin: 0; font-size: 15px; }

.cards, .module-grid, .service-matrix, .advantage-grid, .security-stack, .case-solution-grid {
  display: grid;
  gap: 18px;
}
.cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.module-grid, .service-matrix { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.advantage-grid, .security-stack { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .module, .service-card, .advantage-card, .security-card, .scenario-card, .deploy-card, .faq-item, .solution-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 18px;
}
.card { min-height: 210px; }
.card h3, .service-card h3, .advantage-card h3, .security-card h3, .deploy-card h3 { margin: 0 0 10px; font-size: 18px; }
.card p, .service-card p, .advantage-card p, .security-card p, .deploy-card p, .faq-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}
.module { min-height: 92px; }
.module strong, .scenario-card strong, .faq-item strong, .solution-card strong { display: block; font-size: 15px; margin-bottom: 7px; }
.module span, .scenario-card span, .solution-card span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; }
.card, .module, .scenario-card, .security-card, .solution-card {
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover, .module:hover, .scenario-card:hover, .security-card:hover, .solution-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(28,43,78,.10);
  border-color: #c8d6ea;
}
.icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border: 1px solid #c9d9ff;
  background: var(--blue-soft);
  color: #183b8f;
  font-weight: 800;
  font-size: 15px;
}
.icon.teal { border-color: #a8e0d7; background: var(--teal-soft); color: var(--teal); }
.icon.amber { border-color: #f2d8a7; background: var(--amber-soft); color: var(--amber); }
.icon.red { border-color: #ffd0cc; background: var(--red-soft); color: var(--red); }
.icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.scenario-cards { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.case-solution-grid { grid-template-columns: repeat(3, 1fr); }
.solution-card {
  min-height: 230px;
  display: grid;
  align-content: start;
  gap: 12px;
}
.solution-tag {
  width: fit-content;
  padding: 5px 8px;
  background: var(--blue-soft);
  color: #183b8f;
  font-size: 12px;
  font-weight: 700;
}
.solution-card h3 { margin: 0; font-size: 19px; }
.solution-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.solution-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.solution-list li {
  position: relative;
  padding-left: 12px;
  color: #445064;
  font-size: 12px;
  line-height: 1.45;
}
.solution-list li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px;
  height: 5px;
  background: var(--blue);
}
.collab-map, .biz-map, .architecture-hero {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 52px rgba(28,43,78,.10);
  padding: 24px;
  display: grid;
  gap: 14px;
}
.collab-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.collab-card { background: #f8fafd; border: 1px solid var(--line); padding: 15px; min-height: 118px; }
.collab-card h3 { margin: 0 0 8px; font-size: 16px; }
.collab-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }

.crumb-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.crumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }
.crumb a { color: var(--blue); text-decoration: none; }
.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.page-action {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: #344054;
  text-decoration: none;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.page-action.primary {
  border-color: var(--blue);
  color: var(--blue);
  font-weight: 700;
}
.audience-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 20px 0 0; }
.audience-card { background: #fff; border: 1px solid var(--line); padding: 16px; min-height: 118px; }
.audience-card strong { display: block; font-size: 15px; margin-bottom: 8px; }
.audience-card span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; }

.biz-map-title { display: flex; justify-content: space-between; gap: 18px; align-items: flex-end; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.biz-map-title h3 { margin: 0; font-size: 24px; }
.biz-map-title p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; max-width: 620px; }
.biz-layer { border: 1px solid var(--line); display: grid; grid-template-columns: 150px 1fr; background: #fff; }
.biz-layer-label { background: #f8fafd; border-right: 1px solid var(--line); padding: 15px; font-weight: 800; font-size: 14px; display: grid; align-content: center; }
.biz-layer-body { padding: 12px; display: grid; gap: 10px; }
.biz-channels, .biz-domain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.biz-domain-grid { grid-template-columns: repeat(3, 1fr); }
.biz-channel { background: #eef4ff; border: 1px solid #c9d9ff; color: #183b8f; padding: 13px; text-align: center; font-weight: 700; font-size: 13px; line-height: 1.5; }
.biz-lifecycle, .process-chain { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.life-step, .process-step { background: #fff; border: 1px solid #dfe6ef; padding: 12px; text-align: center; min-height: 76px; display: grid; align-content: center; gap: 4px; position: relative; }
.life-step:not(:last-child):after { content: ""; position: absolute; right: -7px; top: 50%; width: 6px; border-top: 1px solid #9fb2d3; }
.life-step strong, .process-step strong { font-size: 13px; }
.life-step span, .process-step span { font-size: 11px; color: var(--muted); line-height: 1.4; }
.biz-domain { border: 1px solid #dfe6ef; background: #fbfcfe; padding: 14px; display: grid; gap: 9px; }
.biz-domain h3 { margin: 0; font-size: 16px; color: #172033; }
.biz-node { background: #fff; border: 1px solid #dfe6ef; padding: 10px; font-size: 12px; color: #344054; line-height: 1.45; }
.biz-support { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.biz-support div { background: var(--amber-soft); border: 1px solid #f2d8a7; color: var(--amber); padding: 11px; text-align: center; font-size: 12px; font-weight: 700; }

.feature-group { display: grid; grid-template-columns: 220px 1fr; border: 1px solid var(--line); background: #fff; margin-bottom: 14px; }
.feature-title { background: #f8fafd; border-right: 1px solid var(--line); padding: 18px; }
.feature-title h3 { margin: 0 0 6px; font-size: 18px; }
.feature-title p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.feature-list { padding: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.feature-item { border: 1px solid #dfe6ef; background: #fbfcfe; padding: 12px; min-height: 96px; }
.feature-item strong { display: block; font-size: 14px; margin-bottom: 6px; }
.feature-item span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.case-card { background: #fff; border: 1px solid var(--line); padding: 20px; }
.case-card h3 { margin: 0 0 12px; font-size: 18px; }
.case-card ol { margin: 0; padding-left: 20px; color: #445064; line-height: 1.8; font-size: 14px; }

.figure-head { border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 4px; text-align: center; }
.figure-head h2 { font-size: 28px; margin: 0 0 8px; }
.figure-head p { margin: 0 auto; color: var(--muted); font-size: 14px; line-height: 1.65; max-width: 800px; }
.arch-canvas { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 14px; align-items: stretch; }
.arch-main { display: grid; gap: 12px; }
.arch-row { display: grid; grid-template-columns: 170px 1fr; border: 1px solid var(--line); }
.arch-label { background: #f8fafd; border-right: 1px solid var(--line); padding: 13px; font-weight: 700; font-size: 13px; display: flex; align-items: center; }
.arch-nodes { padding: 10px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.arch-nodes.cols-5 { grid-template-columns: repeat(5, 1fr); }
.arch-nodes.cols-6 { grid-template-columns: repeat(6, 1fr); }
.arch-nodes.cols-7 { grid-template-columns: repeat(7, 1fr); }
.arch-node { padding: 10px 8px; text-align: center; font-size: 12px; background: #f8fafc; border: 1px solid #dfe6ef; }
.arch-node.blue { background: var(--blue-soft); border-color: #c9d9ff; color: #183b8f; }
.arch-node.green { background: var(--green-soft); border-color: #c9eadb; color: #0f5d42; }
.arch-node.amber { background: var(--amber-soft); border-color: #f2d8a7; color: var(--amber); }
.arch-overview {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 52px rgba(28,43,78,.10);
  padding: 24px;
  display: grid;
  gap: 14px;
}
.arch-overview-canvas {
  display: grid;
  gap: 14px;
}
.arch-overview-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}
.arch-overview-head h3 { margin: 0; font-size: 24px; }
.arch-overview-head p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; max-width: 620px; }
.arch-stage {
  display: grid;
  grid-template-columns: 150px 1fr;
  border: 1px solid var(--line);
  background: #fff;
}
.arch-stage-label {
  background: #f8fafd;
  border-right: 1px solid var(--line);
  padding: 16px;
  display: grid;
  align-content: center;
  gap: 4px;
}
.arch-stage-label strong { font-size: 15px; }
.arch-stage-label span { color: var(--muted); font-size: 11px; line-height: 1.45; }
.arch-stage-body {
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}
.arch-pill {
  min-height: 54px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 10px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  background: #f8fafc;
  border: 1px solid #dfe6ef;
}
.arch-pill.blue { background: var(--blue-soft); border-color: #c9d9ff; color: #183b8f; }
.arch-pill.green { background: var(--green-soft); border-color: #c9eadb; color: #0f5d42; }
.arch-pill.amber { background: var(--amber-soft); border-color: #f2d8a7; color: var(--amber); }
.arch-support {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.arch-support-card {
  border: 1px solid var(--line);
  background: #f8fafd;
  padding: 16px;
}
.arch-support-card strong { display: block; margin-bottom: 8px; font-size: 15px; }
.arch-support-card span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; }
.arch-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; color: var(--muted); font-size: 12px; text-align: center; }
.arch-flow span { border-top: 1px dashed #b7c2d2; padding-top: 6px; }
.arch-rail { display: grid; grid-template-rows: 1fr 1fr; gap: 12px; }
.rail-card { border: 1px solid var(--line); background: #f8fafd; padding: 16px; display: grid; align-content: start; gap: 12px; }
.rail-card h3 { font-size: 16px; margin: 0; }
.rail-card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.rail-card li { font-size: 12px; line-height: 1.45; color: #445064; padding-left: 11px; position: relative; }
.rail-card li:before { content: ""; position: absolute; left: 0; top: 7px; width: 5px; height: 5px; background: var(--blue); }
.arch-caption { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 10px; }
.arch-caption div { border-left: 3px solid var(--blue); background: #f8fafd; padding: 13px; min-height: 76px; }
.arch-caption strong { display: block; font-size: 14px; margin-bottom: 5px; }
.arch-caption span { display: block; color: var(--muted); font-size: 12px; line-height: 1.5; }

.principles, .glossary, .deploy-grid { display: grid; gap: 14px; }
.principles { grid-template-columns: repeat(3, 1fr); }
.glossary { grid-template-columns: repeat(2, 1fr); }
.deploy-grid { grid-template-columns: repeat(5, 1fr); }
.principle, .term { background: #fff; border: 1px solid var(--line); padding: 18px; }
.principle b, .term strong { display: block; font-size: 16px; margin-bottom: 8px; }
.principle p, .term span { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.scenario-table { border: 1px solid var(--line); background: #fff; }
.scenario-row { display: grid; grid-template-columns: 170px 1fr 1fr; border-bottom: 1px solid var(--line); }
.scenario-row:last-child { border-bottom: 0; }
.scenario-row > div { padding: 15px; border-right: 1px solid var(--line); font-size: 14px; line-height: 1.65; color: #445064; }
.scenario-row > div:last-child { border-right: 0; }
.scenario-row.head > div { background: #f8fafd; color: var(--ink); font-weight: 700; }
.timeline { display: grid; gap: 10px; }
.timeline-item { display: grid; grid-template-columns: 42px 1fr; gap: 12px; background: #fff; border: 1px solid var(--line); padding: 14px; }
.timeline-num { width: 42px; height: 42px; background: var(--blue); color: #fff; display: grid; place-items: center; font-weight: 700; }
.timeline-item strong { display: block; font-size: 15px; margin-bottom: 5px; }
.timeline-item span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.two-col, .detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.detail-panel { background: #fff; border: 1px solid var(--line); padding: 22px; }
.detail-panel h3 { margin: 0 0 14px; font-size: 20px; }
.detail-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.detail-list li { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 13px 0; border-bottom: 1px solid #edf1f7; color: #445064; font-size: 14px; line-height: 1.65; }
.detail-list li:last-child { border-bottom: 0; }

.faq-list { display: grid; gap: 12px; }

.site-footer {
  margin-top: auto;
  padding: 38px clamp(28px, 5vw, 72px);
  background: #f8fafc;
  border-top: 1px solid var(--line);
  color: var(--ink);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}
.footer-brand img {
  width: 128px;
  height: auto;
  display: block;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}
.footer-brand img:hover {
  opacity: 1;
}
.footer-logo-panel {
  width: fit-content;
  margin-bottom: 14px;
}
.footer-brand strong, .footer-col strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 15px;
}
.footer-brand p, .footer-col p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}
.footer-links {
  display: grid;
  gap: 8px;
}
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--blue);
}

.footer-bottom {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}
.footer-bottom a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-bottom a:hover {
  color: var(--blue);
}

@media (max-width: 1080px) {
  .layout { grid-template-columns: 240px minmax(0, 1fr); }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .cards, .module-grid, .service-matrix, .advantage-grid, .security-stack, .audience-strip,
  .principles, .scenario-cards, .biz-channels, .biz-domain-grid, .deploy-grid, .biz-lifecycle,
  .biz-support, .process-chain, .collab-row, .arch-caption, .case-solution-grid, .arch-stage-body { grid-template-columns: repeat(2, 1fr); }
  .feature-list, .feature-group, .two-col, .detail-grid, .arch-canvas, .scenario-row, .arch-stage { grid-template-columns: 1fr; }
  .feature-title { border-right: 0; border-bottom: 1px solid var(--line); }
  .arch-stage-label { border-right: 0; border-bottom: 1px solid var(--line); }
  .arch-rail { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .arch-flow { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .mobile-topbar {
    display: flex !important;
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-bottom: 1px solid rgba(228, 231, 236, 0.7) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    padding: 0 20px !important;
    height: 64px !important;
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 35;
  }
  .mobile-brand img {
    height: 28px !important;
    width: auto !important;
  }
  .mobile-brand strong {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
  }
  
  /* Animated Hamburger Menu Button */
  .menu-button {
    width: 36px !important;
    height: 36px !important;
    border: none !important;
    background: transparent !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 5px !important;
    cursor: pointer !important;
    padding: 0 !important;
    z-index: 40 !important;
  }
  .menu-button .line {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--ink);
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
  }
  /* Animation states when menu is open */
  body.menu-open .menu-button .line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  body.menu-open .menu-button .line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  body.menu-open .menu-button .line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .layout {
    display: block;
    margin-top: 64px;
  }

  /* Frosted Glass Navigation Drawer */
  .sidebar {
    display: flex !important;
    position: fixed !important;
    z-index: 30 !important;
    top: 64px !important;
    left: 0 !important;
    right: 0 !important;
    height: calc(100vh - 64px) !important;
    padding: 24px 20px !important;
    border-right: 0 !important;
    border-bottom: 0 !important;
    background: rgba(255, 255, 255, 0.88) !important;
    backdrop-filter: blur(25px) !important;
    -webkit-backdrop-filter: blur(25px) !important;
    
    /* Sliding animations */
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.4s;
    overflow-y: auto !important;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
  }
  
  body.menu-open .sidebar {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* Mobile Backdrop dim and blur */
  .mobile-nav-backdrop {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(16, 24, 40, 0.4);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 25;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s;
  }
  body.menu-open .mobile-nav-backdrop {
    opacity: 1;
    visibility: visible;
  }
  
  /* Prevent scroll on body when open */
  body.menu-open {
    overflow: hidden !important;
  }

  /* Card-style list of links */
  .sidebar .nav {
    display: grid !important;
    gap: 10px !important;
    width: 100%;
    max-width: 440px;
    margin: 0 auto !important;
  }
  .sidebar .nav a {
    display: flex !important;
    align-items: center !important;
    gap: 14px !important;
    padding: 15px 18px !important;
    background: rgba(255, 255, 255, 0.5) !important;
    border: 1px solid rgba(228, 231, 236, 0.7) !important;
    border-radius: 12px !important;
    color: #344054 !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    border-left: none !important;
    margin: 0 !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.015);
    
    /* Staggered load animation */
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
    transition-delay: calc(var(--nav-item-index, 0) * 0.04s) !important;
  }
  
  body.menu-open .sidebar .nav a {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* Hover and active card styles */
  .sidebar .nav a:hover:not(.active) {
    background: rgba(24, 59, 143, 0.04) !important;
    border-color: rgba(24, 59, 143, 0.2) !important;
    color: var(--blue) !important;
  }
  .sidebar .nav a.active {
    background: var(--blue) !important;
    border-color: var(--blue) !important;
    color: #fff !important;
    font-weight: 600 !important;
    box-shadow: 0 6px 16px rgba(24, 59, 143, 0.2) !important;
  }
  .sidebar .nav a.active .nav-icon {
    color: #fff !important;
  }
  .sidebar .nav a:hover:not(.active) .nav-icon {
    color: var(--blue) !important;
  }

  /* Staggered slide in for mobile sidebar footer */
  .sidebar-footer {
    display: block !important;
    border-top: 0 !important;
    margin-top: 24px !important;
    padding: 20px 0 0 0 !important;
    text-align: center !important;
    border-top: 1px dashed rgba(228, 231, 236, 0.8) !important;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
    transition-delay: calc((var(--nav-item-count, 10) + 1) * 0.04s) !important;
  }
  body.menu-open .sidebar-footer {
    opacity: 1;
    transform: translateY(0);
  }
  .sidebar-footer .side-foot {
    display: block !important;
    font-size: 12px !important;
    color: var(--muted) !important;
    line-height: 1.6 !important;
    padding: 0 10px !important;
  }

  /* Mobile resets for sidebar collapsed states */
  .layout.sidebar-collapsed {
    --sidebar-width: 100%;
  }
  .layout.sidebar-collapsed .brand strong,
  .layout.sidebar-collapsed .brand span,
  .layout.sidebar-collapsed .brand-logo,
  .layout.sidebar-collapsed .side-foot,
  .layout.sidebar-collapsed .nav-text {
    display: block !important;
  }
  .layout.sidebar-collapsed .brand-collapsed-logo {
    display: none !important;
  }
  .layout.sidebar-collapsed .brand {
    border-bottom: 1px solid var(--line);
    margin-bottom: 18px;
    padding-bottom: 22px;
  }
  .sidebar-toggle {
    display: none !important;
  }
  .sidebar-menu {
    padding: 0 !important;
    width: 100%;
  }
  .sidebar .brand,
  .layout.sidebar-collapsed .brand {
    display: none !important;
  }
  .sidebar-footer,
  .layout.sidebar-collapsed .side-foot {
    display: none !important;
  }

  .hero, .content-section { padding: 42px 18px; }
  .hero p { font-size: 16px; }
  .crumb-row { display: grid; gap: 12px; }
  .page-actions { width: 100%; }
  .page-action { flex: 1 1 130px; }
  .cards, .module-grid, .service-matrix, .advantage-grid, .security-stack, .audience-strip,
  .principles, .glossary, .scenario-cards, .biz-channels, .biz-lifecycle, .biz-domain-grid,
  .biz-support, .process-chain, .collab-row, .deploy-grid, .arch-caption, .mock-main,
  .case-solution-grid, .footer-inner, .arch-stage-body, .arch-support { grid-template-columns: 1fr; }

  /* Hide the dashboard mockup on mobile for a clean and readable layout */
  .hero-card.dashboard {
    display: none !important;
  }
  .arch-overview-head { display: grid; }
  .biz-map-title { display: grid; }
  .biz-layer, .arch-row { grid-template-columns: 1fr; }
  .biz-layer-label, .arch-label { border-right: 0; border-bottom: 1px solid var(--line); }
  .life-step:after { display: none; }
  .arch-nodes, .arch-nodes.cols-5, .arch-nodes.cols-6, .arch-nodes.cols-7 { grid-template-columns: 1fr; }
  .detail-list li { grid-template-columns: 1fr; gap: 4px; }
  .scenario-row > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .scenario-row > div:last-child { border-bottom: 0; }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
  .arch-rail, .arch-flow { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Mobile Global View and Scroll Styles for Diagrams
   ========================================================================== */

/* Scroll containers for horizontal scrolling on mobile */
.scroll-container {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px; /* space for scrollbar */
  margin-top: 10px;
}

/* Custom scrollbar styling */
.scroll-container::-webkit-scrollbar {
  height: 6px;
}
.scroll-container::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 3px;
}
.scroll-container::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
  transition: background 0.2s ease;
}
.scroll-container::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Toggle bar for mobile view switching */
.diagram-toggle-bar {
  display: none; /* hidden on desktop by default */
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding: 8px 12px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.scroll-tip-text {
  color: var(--muted);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.scroll-tip-icon {
  animation: shakeLR 2s infinite ease-in-out;
}

@keyframes shakeLR {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}

.view-toggle {
  display: inline-flex;
  background: #e2e8f0;
  padding: 2px;
  border-radius: 6px;
}

.toggle-btn {
  border: 0;
  background: transparent;
  color: #64748b;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.toggle-btn.active {
  background: #fff;
  color: var(--blue);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* Show toggle bar on screens where layout collapses */
@media (max-width: 1080px) {
  .diagram-toggle-bar {
    display: flex;
  }
}

/* Desktop layout overrides for global-active class on mobile */
@media (max-width: 1080px) {
  /* Index Page: Technical Architecture Overview */
  .arch-overview-canvas.global-active {
    display: grid !important;
    grid-template-columns: 1fr !important;
    min-width: 800px;
  }
  .arch-overview-canvas.global-active .arch-stage {
    display: grid !important;
    grid-template-columns: 150px 1fr !important;
  }
  .arch-overview-canvas.global-active .arch-stage-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .arch-overview-canvas.global-active .arch-stage-body {
    display: grid !important;
    grid-template-columns: repeat(5, 1fr) !important;
  }

  /* Technical Architecture Detail Page */
  .arch-canvas.global-active {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 190px !important;
    min-width: 900px;
    align-items: stretch !important;
  }
  .arch-canvas.global-active .arch-main {
    display: grid !important;
    gap: 12px !important;
  }
  .arch-canvas.global-active .arch-row {
    display: grid !important;
    grid-template-columns: 170px 1fr !important;
  }
  .arch-canvas.global-active .arch-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .arch-canvas.global-active .arch-nodes {
    display: grid !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-5 {
    grid-template-columns: repeat(5, 1fr) !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-6 {
    grid-template-columns: repeat(6, 1fr) !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-7 {
    grid-template-columns: repeat(7, 1fr) !important;
  }
  .arch-canvas.global-active .arch-rail {
    display: grid !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: 1fr 1fr !important;
    gap: 12px !important;
  }
  .arch-canvas.global-active .arch-flow {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
  }
  .arch-canvas.global-active .arch-flow span {
    border-top: 1px dashed #b7c2d2 !important;
    padding-top: 6px !important;
  }

  /* Business Map Page */
  .biz-map-canvas.global-active {
    display: grid !important;
    min-width: 950px;
    gap: 14px !important;
  }
  .biz-map-canvas.global-active .biz-layer {
    display: grid !important;
    grid-template-columns: 150px 1fr !important;
  }
  .biz-map-canvas.global-active .biz-layer-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .biz-map-canvas.global-active .biz-channels {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
  }
  .biz-map-canvas.global-active .biz-lifecycle {
    display: grid !important;
    grid-template-columns: repeat(7, 1fr) !important;
  }
  .biz-map-canvas.global-active .life-step:not(:last-child):after {
    display: block !important;
  }
  .biz-map-canvas.global-active .biz-domain-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
  }
  .biz-map-canvas.global-active .biz-support {
    display: grid !important;
    grid-template-columns: repeat(6, 1fr) !important;
  }
}

@media (max-width: 760px) {
  /* Index Page: Technical Architecture Overview */
  .arch-overview-canvas.global-active {
    display: grid !important;
    grid-template-columns: 1fr !important;
    min-width: 800px;
  }
  .arch-overview-canvas.global-active .arch-stage {
    display: grid !important;
    grid-template-columns: 150px 1fr !important;
  }
  .arch-overview-canvas.global-active .arch-stage-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .arch-overview-canvas.global-active .arch-stage-body {
    display: grid !important;
    grid-template-columns: repeat(5, 1fr) !important;
  }

  /* Technical Architecture Detail Page */
  .arch-canvas.global-active {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) 190px !important;
    min-width: 900px;
    align-items: stretch !important;
  }
  .arch-canvas.global-active .arch-main {
    display: grid !important;
    gap: 12px !important;
  }
  .arch-canvas.global-active .arch-row {
    display: grid !important;
    grid-template-columns: 170px 1fr !important;
  }
  .arch-canvas.global-active .arch-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .arch-canvas.global-active .arch-nodes {
    display: grid !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-5 {
    grid-template-columns: repeat(5, 1fr) !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-6 {
    grid-template-columns: repeat(6, 1fr) !important;
  }
  .arch-canvas.global-active .arch-nodes.cols-7 {
    grid-template-columns: repeat(7, 1fr) !important;
  }
  .arch-canvas.global-active .arch-rail {
    display: grid !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: 1fr 1fr !important;
    gap: 12px !important;
  }
  .arch-canvas.global-active .arch-flow {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
  }
  .arch-canvas.global-active .arch-flow span {
    border-top: 1px dashed #b7c2d2 !important;
    padding-top: 6px !important;
  }

  /* Business Map Page */
  .biz-map-canvas.global-active {
    display: grid !important;
    min-width: 950px;
    gap: 14px !important;
  }
  .biz-map-canvas.global-active .biz-layer {
    display: grid !important;
    grid-template-columns: 150px 1fr !important;
  }
  .biz-map-canvas.global-active .biz-layer-label {
    border-right: 1px solid var(--line) !important;
    border-bottom: 0 !important;
  }
  .biz-map-canvas.global-active .biz-channels {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
  }
  .biz-map-canvas.global-active .biz-lifecycle {
    display: grid !important;
    grid-template-columns: repeat(7, 1fr) !important;
  }
  .biz-map-canvas.global-active .life-step:not(:last-child):after {
    display: block !important;
  }
  .biz-map-canvas.global-active .biz-domain-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
  }
  .biz-map-canvas.global-active .biz-support {
    display: grid !important;
    grid-template-columns: repeat(6, 1fr) !important;
  }
}

/* Fullscreen Trigger Button */
.fullscreen-trigger-btn {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--blue);
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 24px;
  box-sizing: border-box;
  transition: all 0.2s ease;
}

.fullscreen-trigger-btn:hover {
  background: var(--blue-soft);
  border-color: var(--blue);
}

/* Fullscreen Diagram Overlay */
.diagram-fullscreen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.98); /* dark slate translucent background */
  backdrop-filter: blur(12px);
  z-index: 3000;
  display: none;
  opacity: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  padding: 40px 20px;
  transition: opacity 0.25s ease;
}

.diagram-fullscreen-overlay.active {
  display: flex;
  opacity: 1;
}

.fullscreen-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 3100;
  transition: all 0.2s ease;
}

.fullscreen-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.fullscreen-scroll-hint {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.fullscreen-content-wrapper {
  width: 100%;
  height: calc(100% - 70px);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 10px;
  -webkit-overflow-scrolling: touch;
}

/* Ensure the diagram renders with white background card style inside the dark modal */
.fullscreen-content-wrapper > div {
  background: #fff !important;
  border: 1px solid var(--line) !important;
  box-shadow: 0 25px 70px rgba(0,0,0,0.4) !important;
  padding: 24px !important;
  border-radius: 8px !important;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: zoom-in;
}

.fullscreen-content-wrapper > div.zoomed-in-active {
  cursor: zoom-out;
}

.fullscreen-mode-badge {
  margin-top: 10px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  pointer-events: none;
  transition: all 0.2s ease;
  z-index: 3100;
}

.fullscreen-mode-badge.zoomed {
  background: var(--blue);
  border-color: var(--blue);
}