.page-about {
  --about-blue: var(--db-accent-blue);
  --about-green: var(--db-accent-green);
  --about-orange: var(--db-accent-orange);
  --about-panel: var(--db-bg-panel);
  --about-carbon: var(--db-bg-carbon);
  --about-text: var(--db-text-primary);
  --about-muted: var(--db-text-secondary);
  --about-line: var(--db-line);
  --about-headline: var(--db-font-headline);
  --about-body: var(--db-font-body);
  --about-mono: var(--db-font-mono);
  position: relative;
  background: var(--db-bg-void);
  color: var(--db-text-primary);
  font-family: var(--db-font-body);
  overflow-x: clip;
}

.page-about::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(102, 224, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 224, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-about .db-container,
.page-about .db-breadcrumb,
.page-about .about-cover,
.page-about .about-links {
  position: relative;
  z-index: 1;
}

.page-about [hidden] {
  display: none !important;
}

.page-about .db-breadcrumb {
  max-width: var(--db-container-w);
  margin: 20px auto 0;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--db-text-secondary);
}

.page-about .db-breadcrumb__link {
  color: var(--db-accent-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .db-breadcrumb__link:hover {
  color: var(--db-accent-green);
}

.page-about .db-breadcrumb__sep {
  opacity: 0.55;
}

.page-about .about-cover {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: var(--db-container-w);
  margin: 0 auto;
  padding: 48px 20px 40px;
}

.page-about .about-cover__rail {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-cover__rail-num {
  font-family: var(--db-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--db-accent-green);
  border: 1px solid rgba(0, 230, 160, 0.35);
  padding: 3px 10px;
  transform: skewX(-12deg);
}

.page-about .about-cover__rail-text {
  font-family: var(--db-font-headline);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--db-text-secondary);
  text-transform: uppercase;
}

.page-about .about-cover__rail-line {
  flex: 1;
  min-width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--db-line), transparent);
}

.page-about .about-cover__body {
  max-width: 880px;
}

.page-about .about-cover .db-section__eyebrow {
  margin: 0 0 16px;
  font-family: var(--db-font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--db-accent-blue);
  text-transform: uppercase;
}

.page-about .about-cover h1 {
  margin: 0 0 20px;
  font-family: var(--db-font-headline);
  font-size: clamp(30px, 5.6vw, 64px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--db-text-primary);
  text-shadow: 0 4px 40px rgba(0, 198, 255, 0.18);
}

.page-about .about-cover__lead {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--db-text-secondary);
}

.page-about .about-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .db-section__eyebrow {
  margin: 0 0 10px;
  font-family: var(--db-font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--db-accent-blue);
  text-transform: uppercase;
}

.page-about .about-section-head {
  margin-bottom: 32px;
}

.page-about .about-section-head h2 {
  position: relative;
  margin: 0;
  padding-left: 18px;
  font-family: var(--db-font-headline);
  font-size: clamp(24px, 3.6vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--db-text-primary);
}

.page-about .about-section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: linear-gradient(180deg, var(--db-accent-blue), var(--db-accent-green));
  transform: skewX(-20deg);
}

.page-about .about-switch {
  padding: 40px 0;
}

.page-about .about-switch__grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-about .about-switch__text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--db-text-secondary);
}

.page-about .about-switch__story {
  background: var(--db-bg-panel);
  border: 1px solid rgba(102, 224, 255, 0.2);
  padding: 28px 24px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .about-switch__scene {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}

.page-about .about-switch__node {
  flex: 1;
  padding: 18px 20px;
  background: var(--db-bg-carbon);
  border: 1px solid rgba(102, 224, 255, 0.28);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.page-about .about-switch__node:hover {
  background: rgba(0, 198, 255, 0.08);
  border-color: var(--db-accent-green);
}

.page-about .about-switch__node--sync {
  border-color: rgba(0, 230, 160, 0.5);
  background: rgba(0, 230, 160, 0.06);
}

.page-about .about-switch__node-title {
  display: block;
  margin-bottom: 4px;
  font-family: var(--db-font-headline);
  font-size: 18px;
  font-weight: 700;
  color: var(--db-text-primary);
}

.page-about .about-switch__node-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--db-text-secondary);
}

.page-about .about-switch__flow {
  position: relative;
  display: block;
  width: 2px;
  height: 40px;
  margin: 0 auto;
  background: linear-gradient(180deg, var(--db-accent-blue), var(--db-accent-green));
}

.page-about .about-switch__flow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  width: 6px;
  height: 6px;
  transform: translateX(-50%) rotate(45deg);
  border-right: 2px solid var(--db-accent-green);
  border-bottom: 2px solid var(--db-accent-green);
}

.page-about .about-switch__caption {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed rgba(102, 224, 255, 0.25);
  font-size: 14px;
  line-height: 1.7;
  color: var(--db-text-secondary);
}

.page-about .about-milestone {
  padding: 40px 0;
}

.page-about .about-milestone__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-milestone__media {
  margin: 0;
}

.page-about .about-milestone__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-about .about-milestone__media figcaption {
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--db-accent-green);
  font-size: 14px;
  line-height: 1.7;
  color: var(--db-text-secondary);
}

.page-about .about-milestone__timeline {
  position: relative;
  padding-left: 18px;
}

.page-about .about-milestone__timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--db-accent-blue), var(--db-accent-green) 70%, transparent);
}

.page-about .about-milestone__item {
  background: var(--db-bg-panel);
  border: 1px solid rgba(102, 224, 255, 0.16);
  margin-bottom: 14px;
}

.page-about .about-milestone__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  color: var(--db-text-primary);
  font-family: var(--db-font-headline);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease;
}

.page-about .about-milestone__trigger:hover,
.page-about .about-milestone__trigger[aria-expanded="true"] {
  background: rgba(0, 198, 255, 0.06);
}

.page-about .about-milestone__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  background: rgba(0, 198, 255, 0.12);
  border-left: 2px solid var(--db-accent-green);
  color: var(--db-accent-blue);
  font-family: var(--db-font-mono);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  transform: skewX(-10deg);
}

.page-about .about-milestone__label {
  flex: 1;
}

.page-about .about-milestone__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: var(--db-accent-blue);
  font-family: var(--db-font-mono);
  font-size: 18px;
  line-height: 1;
  border: 1px solid rgba(102, 224, 255, 0.35);
  transition: transform 0.25s ease;
}

.page-about .about-milestone__trigger[aria-expanded="true"] .about-milestone__icon {
  transform: rotate(45deg);
}

.page-about .about-milestone__panel {
  padding: 0 20px 18px 58px;
  border-top: 1px solid transparent;
  font-size: 15px;
  line-height: 1.85;
  color: var(--db-text-secondary);
}

.page-about .about-milestone__panel p {
  margin: 0;
}

.page-about .about-scale {
  position: relative;
  padding: 40px 0;
}

.page-about .about-scale::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--db-line), transparent);
}

.page-about .about-scale__grid {
  display: grid;
  gap: 40px;
}

.page-about .about-scale__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .about-scale__stat {
  background: var(--db-bg-panel);
  padding: 24px 18px 20px;
  border-top: 2px solid var(--db-accent-blue);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-about .about-scale__stat:hover {
  background: rgba(0, 198, 255, 0.06);
  border-top-color: var(--db-accent-green);
}

.page-about .about-scale__num {
  display: block;
  font-family: var(--db-font-mono);
  font-size: clamp(34px, 6vw, 54px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--db-accent-blue);
  text-shadow: 0 0 24px rgba(0, 198, 255, 0.24);
}

.page-about .about-scale__label {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--db-text-primary);
}

.page-about .about-scale__desc {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--db-text-secondary);
}

.page-about .about-scale__text {
  font-size: 15px;
  line-height: 1.9;
  color: var(--db-text-secondary);
}

.page-about .about-scale__text p {
  margin: 0 0 16px;
}

.page-about .about-scale__figure {
  margin: 32px 0 0;
}

.page-about .about-scale__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-scale__figure figcaption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--db-accent-green);
  font-size: 13px;
  line-height: 1.7;
  color: var(--db-text-secondary);
}

.page-about .about-security {
  padding: 40px 0;
}

.page-about .about-security__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-security__figure {
  margin: 0;
}

.page-about .about-security__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .about-security__row {
  padding: 20px 0;
  border-bottom: 1px solid rgba(102, 224, 255, 0.15);
}

.page-about .about-security__row:first-child {
  border-top: 1px solid rgba(102, 224, 255, 0.15);
}

.page-about .about-security__row h3 {
  position: relative;
  margin: 0 0 8px;
  padding-left: 14px;
  font-family: var(--db-font-headline);
  font-size: 18px;
  font-weight: 700;
  color: var(--db-text-primary);
}

.page-about .about-security__row h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(180deg, var(--db-accent-blue), var(--db-accent-green));
  transform: skewX(-24deg);
}

.page-about .about-security__row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--db-text-secondary);
}

.page-about .about-partner {
  padding: 40px 0;
}

.page-about .about-partner__grid {
  display: grid;
  gap: 18px;
  margin-bottom: 32px;
}

.page-about .about-partner__card {
  position: relative;
  overflow: hidden;
  background: var(--db-bg-panel);
  border: 1px solid rgba(102, 224, 255, 0.16);
  padding: 26px 24px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about .about-partner__card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, transparent 50%, rgba(0, 198, 255, 0.25) 50%);
}

.page-about .about-partner__card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 230, 160, 0.4);
}

.page-about .about-partner__card h3 {
  margin: 0 0 10px;
  font-family: var(--db-font-headline);
  font-size: 17px;
  font-weight: 700;
  color: var(--db-text-primary);
}

.page-about .about-partner__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--db-text-secondary);
}

.page-about .about-partner__more {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  background:
    repeating-linear-gradient(45deg, rgba(0, 198, 255, 0.02) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(-45deg, rgba(0, 198, 255, 0.02) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, var(--db-bg-carbon), var(--db-bg-panel));
  border-left: 4px solid var(--db-accent-green);
}

.page-about .about-partner__more p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--db-text-secondary);
}

.page-about .about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: var(--db-container-w);
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.page-about .about-links__item {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  background: transparent;
  border: 1px solid rgba(102, 224, 255, 0.3);
  color: var(--db-text-primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-links__item:hover {
  background: rgba(0, 198, 255, 0.08);
  border-color: var(--db-accent-green);
  color: var(--db-accent-green);
}

@media (min-width: 600px) {
  .page-about .about-switch__scene {
    flex-direction: row;
    align-items: center;
  }

  .page-about .about-switch__flow {
    width: auto;
    height: 2px;
    flex: 1;
    margin: 0 8px;
    background: linear-gradient(90deg, var(--db-accent-blue), var(--db-accent-green));
  }

  .page-about .about-switch__flow::after {
    left: auto;
    right: -2px;
    top: 50%;
    bottom: auto;
    transform: translateY(-50%) rotate(45deg);
    border-top: 2px solid var(--db-accent-green);
    border-right: 2px solid var(--db-accent-green);
    border-bottom: 0;
  }

  .page-about .about-milestone__trigger {
    padding: 20px 24px;
    font-size: 17px;
  }

  .page-about .about-milestone__panel {
    padding-left: 74px;
  }

  .page-about .about-scale__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .page-about .about-cover {
    flex-direction: row;
    gap: 48px;
    padding-top: 64px;
  }

  .page-about .about-cover__rail {
    flex-direction: column;
    align-items: flex-start;
    min-width: 96px;
    padding-top: 8px;
  }

  .page-about .about-cover__rail-line {
    width: 1px;
    min-width: 0;
    min-height: 120px;
    flex: 1;
    background: linear-gradient(180deg, var(--db-line), transparent);
  }
}

@media (min-width: 900px) {
  .page-about .about-switch__grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
    gap: 56px;
    align-items: center;
  }

  .page-about .about-milestone__grid {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-scale__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-scale__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-security__grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-partner__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-partner__more {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-about .about-partner__more p {
    max-width: 70%;
  }
}