.page-about {
  --about-rail-w: 208px;
  background: var(--c-bg);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(232, 93, 4, 0.26) 0%, rgba(232, 93, 4, 0) 46%),
    linear-gradient(rgba(78, 168, 222, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 168, 222, 0.08) 1px, transparent 1px),
    var(--c-bg-deep);
  background-size: auto, 44px 44px, 44px 44px, auto;
}

.page-about .about-hero .phx-wrap {
  padding-top: 28px;
  padding-bottom: 56px;
}

.page-about .about-hero__crumbs {
  margin-bottom: 36px;
}

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

.page-about .about-hero__intro .phx-chip {
  margin-bottom: 18px;
}

.page-about .about-hero__intro h1 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  line-height: 0.95;
  color: var(--c-cream);
  letter-spacing: 0.02em;
  transform: skew(-4deg);
  transform-origin: left bottom;
}

.page-about .about-hero__slogan {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 2vw, 1.05rem);
  letter-spacing: 0.16em;
  color: var(--c-accent-2);
  text-transform: uppercase;
}

.page-about .about-hero__lead {
  max-width: 560px;
  margin: 0 0 24px;
  color: var(--c-text);
  font-size: 1rem;
  line-height: 1.75;
}

.page-about .about-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  border-top: 1px solid var(--c-line);
  padding-top: 22px;
}

.page-about .about-hero__stats .phx-datum {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  padding: 20px 16px 18px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.page-about .about-hero__stats .phx-datum__num {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--c-hi);
}

.page-about .about-hero__stats .phx-datum__unit {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--c-accent-2);
  margin-left: 4px;
}

.page-about .about-hero__stats .phx-datum__label {
  display: block;
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--c-text-dim);
}

.page-about .about-book {
  padding-block: 32px 88px;
}

.page-about .about-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-about .about-rail__head {
  display: none;
}

.page-about .about-rail__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  color: var(--c-text);
  font-size: 0.82rem;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .about-rail__item:hover,
.page-about .about-rail__item:focus-visible {
  color: var(--c-cream);
  border-color: var(--c-line-hot);
  transform: translateX(2px);
}

.page-about .about-rail__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-accent);
}

.page-about .about-book__body {
  min-width: 0;
}

.page-about .about-book__body .phx-section {
  margin-top: 28px;
}

.page-about .about-book__body .phx-section-head {
  margin-bottom: 20px;
}

.page-about .about-intro {
  display: grid;
  gap: 24px;
  margin-top: 8px;
}

.page-about .about-intro__text {
  max-width: 64ch;
}

.page-about .about-intro__text p {
  color: var(--c-text);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.page-about .about-intro__quote {
  margin: 24px 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.55;
  color: var(--c-accent-2);
  transform: skew(-3deg);
  padding-left: 16px;
  border-left: 4px solid var(--c-accent);
  max-width: 480px;
}

.page-about .about-intro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 12px;
}

.page-about .about-intro__links a {
  color: var(--c-blue);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  border-bottom: 1px dashed var(--c-blue);
  padding-bottom: 2px;
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-intro__links a:hover {
  color: var(--c-hi);
  border-bottom-color: var(--c-hi);
}

.page-about .about-figure {
  position: relative;
  margin: 0;
}

.page-about .about-figure__img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .about-figure figcaption,
.page-about .about-honor__badge figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--c-text-dim);
  border-left: 2px solid var(--c-accent);
  padding-left: 10px;
}

.page-about .about-timeline {
  position: relative;
  margin-top: 12px;
}

.page-about .about-timeline__speed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.35;
  z-index: 0;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  position: relative;
  z-index: 1;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 32px 26px;
  border-left: 1px solid var(--c-line);
  margin-left: 14px;
}

.page-about .about-timeline__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 3px solid var(--c-accent);
  box-shadow: 0 0 0 5px rgba(232, 93, 4, 0.16);
}

.page-about .about-timeline__phase {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  background: rgba(233, 255, 112, 0.08);
  border: 1px solid rgba(233, 255, 112, 0.22);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--c-hi);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}

.page-about .about-timeline__title {
  margin: 0 0 8px;
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.18rem;
  line-height: 1.3;
  color: var(--c-cream);
  transform: skew(-3deg);
}

.page-about .about-timeline__desc {
  margin: 0;
  max-width: 560px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-text);
}

.page-about .about-timeline__note {
  margin-top: 28px;
}

.page-about .about-timeline__note a {
  color: var(--c-blue);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  border-bottom: 1px dashed var(--c-blue);
  padding-bottom: 2px;
  text-decoration: none;
}

.page-about .about-timeline__note a:hover {
  color: var(--c-hi);
  border-bottom-color: var(--c-hi);
}

.page-about .about-team {
  display: grid;
  gap: 32px;
  margin-top: 8px;
}

.page-about .about-team__info {
  display: grid;
  gap: 32px;
}

.page-about .about-team__sub {
  margin: 0 0 16px;
  padding-left: 10px;
  border-left: 3px solid var(--c-accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent-2);
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-team__list li {
  position: relative;
  padding: 12px 0 12px 24px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-text);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 12px;
  height: 2px;
  background: var(--c-accent);
}

.page-about .about-team__list strong {
  color: var(--c-cream);
}

.page-about .about-team__values-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-team__values-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
}

.page-about .about-team__value-no {
  flex-shrink: 0;
  padding: 4px 8px;
  background: rgba(233, 255, 112, 0.1);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-hi);
}

.page-about .about-team__values-list div {
  color: var(--c-text);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-about .about-team__values-list strong {
  color: var(--c-cream);
}

.page-about .about-honors {
  margin-top: 8px;
}

.page-about .phx-grid--2 {
  display: grid;
  gap: 16px;
}

.page-about .about-honor {
  position: relative;
  padding: 22px;
  min-height: 132px;
}

.page-about .about-honor .phx-status {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-hi);
  box-shadow: 0 0 0 4px rgba(233, 255, 112, 0.18);
}

.page-about .about-honor__title {
  margin: 0 0 10px;
  display: inline-block;
  padding-right: 24px;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--c-ink);
  transform: skew(-2deg);
}

.page-about .about-honor__desc {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(26, 17, 0, 0.72);
}

.page-about .about-honor__badge {
  margin: 28px 0 0;
  text-align: center;
}

.page-about .about-honor__badge img {
  display: block;
  max-width: 240px;
  height: auto;
  margin: 0 auto;
  border: 1px solid rgba(26, 17, 0, 0.18);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .about-ecosystem {
  margin-top: 8px;
}

.page-about .about-eco {
  position: relative;
  padding: 24px;
  overflow: hidden;
}

.page-about .about-eco::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 60px;
  height: 60px;
  border: 2px solid rgba(232, 93, 4, 0.35);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-eco__no {
  display: inline-block;
  margin-bottom: 14px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--c-line-hot);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--c-accent-2);
}

.page-about .about-eco__title {
  margin: 0 0 10px;
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--c-cream);
  transform: skew(-2deg);
}

.page-about .about-eco__desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--c-text);
}

.page-about .about-eco__cta {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--c-line-hot);
  border-left: 4px solid var(--c-accent);
  background: linear-gradient(135deg, rgba(232, 93, 4, 0.16), rgba(78, 168, 222, 0.08));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.page-about .about-eco__cta p {
  margin: 0;
  max-width: 100%;
  color: var(--c-text);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about .about-region {
  display: grid;
  gap: 24px;
  margin-top: 8px;
}

.page-about .about-region__lead {
  margin: 0 0 12px;
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--c-cream);
  transform: skew(-3deg);
}

.page-about .about-region__main p {
  color: var(--c-text);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-about .about-region__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-about .about-region__list li {
  position: relative;
  padding: 14px 0 14px 24px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-text);
  font-size: 0.88rem;
  line-height: 1.6;
}

.page-about .about-region__list li::before {
  content: "◦";
  position: absolute;
  left: 0;
  top: 14px;
  color: var(--c-accent);
  font-size: 1.4rem;
  line-height: 1;
}

.page-about .about-region__side-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-cream);
  transform: skew(-3deg);
}

.page-about .about-region__side p {
  margin: 0;
  color: var(--c-text);
  font-size: 0.88rem;
  line-height: 1.75;
}

.page-about .phx-section--cream .phx-section-head__title {
  color: var(--c-ink);
}

.page-about .phx-section--cream .phx-section-head__en {
  color: rgba(26, 17, 0, 0.55);
}

.page-about .phx-section--cream .phx-section-head__index {
  color: var(--c-accent-deep);
}

@media (min-width: 640px) {
  .page-about .about-eco__cta p {
    max-width: 70%;
  }
}

@media (min-width: 720px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .phx-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero .phx-wrap {
    padding-top: 32px;
    padding-bottom: 72px;
  }

  .page-about .about-hero__crumbs {
    margin-bottom: 56px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: end;
  }

  .page-about .about-intro {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 44px;
    align-items: center;
  }

  .page-about .about-team__info {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .page-about .about-region {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-eco__cta {
    padding: 28px 32px;
  }
}

@media (min-width: 960px) {
  .page-about .about-book {
    display: grid;
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding-block: 48px 96px;
  }

  .page-about .about-rail {
    position: sticky;
    top: 32px;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    margin-top: 4px;
    padding: 8px 0;
    border: 0;
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
  }

  .page-about .about-rail__head {
    display: flex;
    flex-direction: column;
    padding: 0 4px 18px;
    border-bottom: 1px solid var(--c-line);
    margin-bottom: 14px;
  }

  .page-about .about-rail__head-index {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    color: var(--c-text-dim);
  }

  .page-about .about-rail__head-title {
    margin-top: 4px;
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--c-cream);
    transform: skew(-3deg);
  }

  .page-about .about-rail__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: 0;
    border-left: 2px solid var(--c-line);
    clip-path: none;
    border-radius: 0;
    padding: 10px 6px 10px 16px;
    font-size: 0.86rem;
    color: var(--c-text-dim);
    transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  }

  .page-about .about-rail__item:hover,
  .page-about .about-rail__item:focus-visible {
    border-left-color: var(--c-accent);
    color: var(--c-cream);
    transform: none;
  }

  .page-about .about-book__body .phx-section {
    margin-top: 12px;
  }

  .page-about .about-book__body .phx-section + .phx-section {
    margin-top: 44px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-timeline {
    padding-top: 48px;
  }

  .page-about .about-timeline::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--c-line-hot) 0%, var(--c-accent) 55%, var(--c-line) 100%);
  }

  .page-about .about-timeline__list {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 22px;
    margin-top: 0;
  }

  .page-about .about-timeline__item {
    padding: 0;
    border-left: 0;
    margin-left: 0;
  }

  .page-about .about-timeline__item::before {
    left: 0;
    top: -53px;
    background: var(--c-panel);
  }

  .page-about .about-timeline__item:last-child {
    border-left: 0;
  }
}