.dr-about-page {
  --dr-about-bg: #07080c;
  --dr-about-panel: rgba(11, 11, 12, 0.78);
  --dr-about-panel-strong: rgba(15, 23, 42, 0.84);
  --dr-about-line: rgba(0, 229, 255, 0.18);
  --dr-about-line-gold: rgba(198, 168, 94, 0.26);
  --dr-about-cyan: #00e5ff;
  --dr-about-blue: #00b4ff;
  --dr-about-gold: #c9a84c;
  --dr-about-green: #a8ff78;
  --dr-about-purple: #c77dff;
  --dr-about-text: #f5f7fb;
  --dr-about-soft: rgba(245, 247, 251, 0.78);
  --dr-about-muted: rgba(245, 247, 251, 0.58);
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 100vh;
  padding: clamp(1rem, 2vw, 1.5rem);
  background:
    radial-gradient(circle at 12% 8%, rgba(0, 229, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 84% 14%, rgba(201, 168, 76, 0.12), transparent 28rem),
    linear-gradient(180deg, #07080c 0%, #0b0b0c 48%, #07080c 100%);
  color: var(--dr-about-text);
  font-family: Georgia, "Times New Roman", serif;
}

.dr-about-page,
.dr-about-page * {
  box-sizing: border-box;
}

.dr-about-page a {
  color: inherit;
}

.dr-bg-layer {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.82;
}

.dr-bg-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.dr-about-page .tr {
  stroke: rgba(0, 180, 255, 0.12);
  stroke-width: 0.5;
  fill: none;
}

.dr-about-page .tg {
  stroke: rgba(201, 168, 76, 0.1);
  stroke-width: 0.5;
  fill: none;
}

.dr-about-page .tn {
  stroke: rgba(168, 255, 120, 0.06);
  stroke-width: 0.4;
  fill: none;
}

.dr-about-page .nd {
  fill: rgba(0, 180, 255, 0.15);
}

.dr-about-page .ng {
  fill: rgba(201, 168, 76, 0.12);
}

.dr-about-page .txt {
  fill: rgba(201, 168, 76, 0.06);
  font-family: "DM Mono", "Courier New", monospace;
  font-size: 9px;
  letter-spacing: 2px;
}

.dr-about-page .sym {
  fill: none;
  stroke-width: 0.6;
}

.km-topnav,
.km-hero,
.km-section,
.km-footer {
  width: min(1120px, 100%);
  margin-inline: auto;
}

.km-topnav {
  display: flex;
  position: relative;
  justify-content: flex-end;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0 1.4rem;
  font-family: "DM Mono", "Courier New", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.km-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem;
}

.km-nav-toggle {
  display: none;
}

.km-nav a,
.km-topnav span {
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--dr-about-line);
  border-radius: 999px;
  background: rgba(7, 8, 12, 0.68);
  color: var(--dr-about-soft);
  text-decoration: none;
  backdrop-filter: blur(14px);
}

.km-nav a:hover,
.km-nav a:focus-visible {
  border-color: var(--dr-about-cyan);
  color: var(--dr-about-text);
}

.km-hero {
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
  overflow: visible;
}

.km-hero-label,
.km-section-num,
.km-cluster-num,
.km-bridge-label,
.km-info-tag,
.km-tl-date,
.km-footer-sub,
.km-footer-mark,
.km-tag {
  font-family: "DM Mono", "Courier New", monospace;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.km-hero-label {
  display: block;
  margin-bottom: 1rem;
  color: var(--dr-about-gold);
  font-size: 0.78rem;
}

.km-hero h1 {
  max-width: none;
  margin: 0;
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-size: clamp(20px, 5vw, 48px);
  line-height: 1.3;
  letter-spacing: 0;
  overflow: visible;
  text-wrap: balance;
}

.km-hero-sub {
  max-width: 62rem;
  margin: 1.35rem 0 0;
  color: var(--dr-about-soft);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.72;
}

.km-cluster-card,
.km-bridge,
.km-map-wrap,
.km-tl-content,
.km-footer {
  border: 1px solid var(--dr-about-line);
  background: var(--dr-about-panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.km-section {
  margin-top: clamp(3rem, 7vw, 5.8rem);
}

.km-section-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.2rem;
}

.km-section-num {
  color: var(--dr-about-cyan);
  font-size: 0.78rem;
}

.km-section-title {
  color: var(--dr-about-gold);
  font-family: Syne, system-ui, sans-serif;
  font-size: clamp(1.45rem, 3vw, 2.25rem);
  font-weight: 800;
}

.km-map-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  padding: clamp(0.8rem, 2vw, 1.5rem);
}

.km-map-wrap svg {
  display: block;
  width: 100%;
  height: auto;
}

.node-group {
  cursor: pointer;
  outline: none;
}

.node-circle,
.pulse-ring {
  transition: stroke-width 180ms ease, filter 180ms ease, opacity 180ms ease;
}

.node-group:hover .node-circle,
.node-group:focus-visible .node-circle,
.node-group.is-active .node-circle {
  stroke-width: 3;
  filter: drop-shadow(0 0 12px currentColor);
}

.node-group.is-active .pulse-ring {
  opacity: 0.95;
}

.node-label,
.node-sub {
  pointer-events: none;
  font-family: "DM Mono", "Courier New", monospace;
  font-weight: 700;
}

.km-map-wrap .node-label {
  font-size: 13px !important;
}

.km-map-wrap .node-sub {
  font-size: 11px !important;
}

.km-map-wrap text,
.km-map-wrap tspan {
  font-size: 13px !important;
}

.km-info {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(7, 8, 12, 0.7);
}

.km-info-dot,
.km-legend-dot {
  flex: 0 0 auto;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  margin-top: 0.18rem;
  box-shadow: 0 0 14px currentColor;
}

.km-info-title {
  display: block;
  margin-top: 0.2rem;
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
}

.km-info-body {
  margin-top: 0.35rem;
  color: var(--dr-about-soft);
  line-height: 1.55;
}

.km-map-hint {
  margin-top: 0.75rem;
  color: var(--dr-about-muted);
  font-family: "DM Mono", "Courier New", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.km-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.km-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(7, 8, 12, 0.58);
  color: var(--dr-about-soft);
  font-size: 0.86rem;
}

.km-dot-core {
  color: var(--dr-about-gold);
  background: var(--dr-about-gold);
}

.km-dot-cyber {
  color: var(--dr-about-blue);
  background: var(--dr-about-blue);
}

.km-dot-law {
  color: rgba(201, 168, 76, 0.6);
  background: rgba(201, 168, 76, 0.6);
}

.km-dot-human {
  color: var(--dr-about-green);
  background: var(--dr-about-green);
}

.km-dot-business {
  color: var(--dr-about-purple);
  background: var(--dr-about-purple);
}

.km-clusters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.km-cluster-card {
  position: relative;
  min-height: 100%;
  padding: 1.2rem;
  border-radius: 8px;
  overflow: hidden;
}

.km-cluster-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-top: 2px solid var(--card-accent, var(--dr-about-cyan));
  opacity: 0.85;
  pointer-events: none;
}

.km-cluster-card.c1 {
  --card-accent: var(--dr-about-blue);
}

.km-cluster-card.c2 {
  --card-accent: var(--dr-about-gold);
}

.km-cluster-card.c3 {
  --card-accent: var(--dr-about-green);
}

.km-cluster-card.c4 {
  --card-accent: var(--dr-about-purple);
}

.km-cluster-num {
  display: block;
  color: var(--card-accent, var(--dr-about-cyan));
  font-size: 0.68rem;
}

.km-cluster-title {
  margin-top: 0.55rem;
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.2;
}

.km-cluster-title a {
  text-decoration: none;
}

.km-cluster-title a:hover,
.km-cluster-title a:focus-visible {
  color: var(--dr-about-cyan);
}

.km-cluster-desc {
  margin: 0.75rem 0 0;
  color: var(--dr-about-soft);
  font-size: 0.94rem;
  line-height: 1.62;
}

.km-cluster-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.km-tag {
  display: inline-flex;
  padding: 0.38rem 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  color: var(--dr-about-muted);
  font-size: 0.62rem;
}

.km-bridge {
  padding: clamp(1.3rem, 3vw, 2.4rem);
  border-color: var(--dr-about-line-gold);
  border-radius: 8px;
}

.km-bridge-label {
  color: var(--dr-about-gold);
  font-size: 0.76rem;
}

.km-bridge-title {
  margin-top: 0.7rem;
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-size: clamp(1.55rem, 3vw, 2.65rem);
  font-weight: 800;
  line-height: 1.08;
}

.km-bridge-body {
  max-width: 78ch;
  margin-top: 1rem;
  color: var(--dr-about-soft);
  line-height: 1.7;
}

.km-bridge-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.2rem;
}

.km-bridge-link {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--dr-about-line);
  border-radius: 999px;
  color: var(--dr-about-cyan);
  font-family: "DM Mono", "Courier New", monospace;
  font-size: 0.72rem;
}

.km-timeline {
  display: grid;
  gap: 1rem;
}

.km-tl-item {
  display: grid;
  grid-template-columns: minmax(5.5rem, 8rem) 2rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: stretch;
}

.km-tl-date {
  color: var(--dr-about-gold);
  font-size: 0.72rem;
  padding-top: 1rem;
}

.km-tl-line {
  position: relative;
  display: flex;
  justify-content: center;
}

.km-tl-line::before {
  content: "";
  width: 1px;
  background: linear-gradient(180deg, var(--dr-about-cyan), rgba(198, 168, 94, 0.2));
}

.km-tl-dot {
  position: absolute;
  top: 1rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: var(--dr-about-cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.55);
}

.km-tl-content {
  padding: 1rem;
  border-radius: 8px;
}

.km-tl-org,
.km-tl-role {
  display: block;
}

.km-tl-org {
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 800;
}

.km-tl-role {
  margin-top: 0.25rem;
  color: var(--dr-about-gold);
  font-size: 0.92rem;
}

.km-tl-desc {
  margin-top: 0.65rem;
  color: var(--dr-about-soft);
  line-height: 1.6;
}

.km-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: 1.1rem;
  border-radius: 8px;
}

.km-footer-name {
  display: block;
  color: var(--dr-about-text);
  font-family: Syne, system-ui, sans-serif;
  font-weight: 800;
}

.km-footer-sub,
.km-footer-mark {
  color: var(--dr-about-muted);
  font-size: 0.68rem;
}

.km-footer-sub {
  display: block;
  margin-top: 0.25rem;
}

@media (max-width: 980px) {
  .km-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 480px) and (max-width: 767px) {
  .km-hero h1 {
    max-width: 100%;
    font-size: clamp(20px, 5vw, 48px);
    line-height: 1.3;
  }
}

@media (max-width: 767px) {
  .km-topnav {
    justify-content: flex-end;
    min-height: 3rem;
    padding-bottom: 0.4rem;
  }

  .km-nav-toggle {
    display: block;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--dr-about-cyan);
    border-radius: 8px;
    background: rgba(7, 8, 12, 0.72);
    cursor: pointer;
  }

  .km-nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: var(--dr-about-cyan);
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .km-nav-toggle.is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .km-nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }

  .km-nav-toggle.is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .km-nav-drawer {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    z-index: 1000;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    border: 1px solid var(--dr-about-cyan);
    border-radius: 8px;
    background: #0f172a;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.44);
  }

  .km-nav-drawer.is-open {
    display: flex;
  }

  .km-nav-drawer a {
    justify-content: flex-start;
    width: 100%;
    min-height: 2.75rem;
    padding: 0.75rem 1rem;
    border-color: rgba(0, 229, 255, 0.38);
    text-align: left;
  }

  .km-nav-drawer a:hover,
  .km-nav-drawer a:focus-visible {
    background: var(--dr-about-cyan);
    color: #07080c;
  }

}

@media (max-width: 768px) {
  .km-map-wrap {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .km-map-wrap svg {
    width: 760px;
    max-width: none;
    height: auto;
  }

  .km-map-wrap .km-label,
  .km-map-wrap .graph-text,
  .km-map-wrap text,
  .km-map-wrap tspan {
    font-size: 16px !important;
  }

  .km-map-wrap .node-label {
    font-size: 16px !important;
  }

  .km-map-wrap .node-sub {
    font-size: 13px !important;
  }
}

@media (max-width: 680px) {
  .dr-about-page {
    padding: 0.85rem;
  }

  .km-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .km-clusters {
    grid-template-columns: 1fr;
  }

  .km-tl-item {
    grid-template-columns: 1fr;
  }

  .km-tl-line {
    display: none;
  }

  .km-map-wrap {
    padding: 0.6rem;
  }

  .km-info {
    flex-direction: column;
  }
}

@media (min-width: 768px) {
  .km-nav-toggle {
    display: none;
  }

  .km-nav-drawer {
    position: static;
    display: flex;
    flex-direction: row;
    background: transparent;
    border: 0;
    padding: 0;
  }
}

@media (max-width: 479px) {
  .km-hero {
    padding-top: 2.4rem;
  }

  .km-hero h1 {
    max-width: 100%;
    font-size: clamp(20px, 5vw, 48px);
    line-height: 1.3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dr-about-page *,
  .dr-about-page *::before,
  .dr-about-page *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}