.page-about {
  --about-line: rgba(230, 232, 237, 0.14);
  --about-text-soft: rgba(242, 243, 245, 0.88);
  box-sizing: border-box;
  background: var(--xk-bg-deep);
  color: var(--xk-text-silver);
  font-family: var(--xk-font-body);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

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

.page-about img {
  max-width: 100%;
}

.page-about .about-breadcrumb {
  padding-top: 24px;
  font-size: 14px;
}

.page-about .about-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-breadcrumb li + li::before {
  content: "／";
  color: rgba(230, 232, 237, 0.4);
}

.page-about .about-breadcrumb a {
  color: var(--xk-accent-cyan);
  text-decoration: none;
}

.page-about .about-breadcrumb a:hover {
  text-decoration: underline;
}

.page-about .about-section-tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 14px;
  border: 1px solid var(--xk-border);
  border-radius: 999px;
  font-family: var(--xk-font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--xk-accent-cyan);
}

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

.page-about .about-section-head h2 {
  margin: 0 0 12px;
  font-family: var(--xk-font-head);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--xk-text-silver);
}

.page-about .about-section-head p:last-child {
  margin: 0;
  color: var(--xk-text-pearl);
}

.page-about .about-hero {
  position: relative;
  padding: 56px 20px 64px;
  overflow: hidden;
  text-align: center;
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-about .about-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.7) 0%, rgba(11, 18, 32, 0.9) 100%);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}

.page-about .about-hero__eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  padding: 6px 18px;
  border: 1px solid var(--xk-border);
  border-radius: 999px;
  font-family: var(--xk-font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--xk-accent-gold);
}

.page-about .about-hero h1 {
  margin: 0 0 24px;
  font-family: var(--xk-font-head);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--xk-text-silver);
}

.page-about .about-hero__slogan {
  margin: 0 0 16px;
  font-family: var(--xk-font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--xk-accent-orange);
}

.page-about .about-hero__lead {
  max-width: 720px;
  margin: 0 auto 40px;
  font-size: 16px;
  color: var(--xk-text-pearl);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 560px;
  margin: 0 auto;
}

.page-about .about-stat {
  padding: 20px 12px;
  background: rgba(11, 18, 32, 0.72);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  animation: about-fade 0.6s ease both;
}

.page-about .about-stat:nth-child(2) {
  animation-delay: 0.08s;
}

.page-about .about-stat:nth-child(3) {
  animation-delay: 0.16s;
}

.page-about .about-stat:nth-child(4) {
  animation-delay: 0.24s;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--xk-font-head);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  color: var(--xk-accent-orange);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--xk-text-pearl);
}

.page-about .about-story {
  padding: 64px 0;
  border-top: 1px solid var(--xk-border);
}

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

.page-about .about-story__text {
  max-width: 720px;
}

.page-about .about-story__text h2 {
  margin: 0 0 20px;
  font-family: var(--xk-font-head);
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--xk-text-silver);
}

.page-about .about-story__text p {
  margin: 0 0 16px;
  color: var(--xk-text-pearl);
}

.page-about .about-story__point {
  align-self: start;
  padding: 28px;
  background: var(--xk-bg-indigo);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-story__point h3 {
  margin: 0 0 16px;
  font-family: var(--xk-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

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

.page-about .about-story__point li {
  position: relative;
  padding: 6px 0 6px 24px;
  font-size: 15px;
  color: var(--xk-text-pearl);
}

.page-about .about-story__point li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 12px;
  height: 2px;
  background: var(--xk-accent-orange);
}

.page-about .about-milestone {
  padding: 64px 0;
  background: var(--xk-bg-indigo);
  border-top: 1px solid var(--xk-border);
}

.page-about .about-milestone__media {
  margin-bottom: 40px;
  overflow: hidden;
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-milestone__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--xk-accent-cyan) 0 6px,
    transparent 6px 12px
  );
  opacity: 0.5;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 40px 56px;
  animation: about-rise 0.5s ease both;
}

.page-about .about-timeline__item:nth-child(1) {
  animation-delay: 0.05s;
}

.page-about .about-timeline__item:nth-child(2) {
  animation-delay: 0.1s;
}

.page-about .about-timeline__item:nth-child(3) {
  animation-delay: 0.15s;
}

.page-about .about-timeline__item:nth-child(4) {
  animation-delay: 0.2s;
}

.page-about .about-timeline__item:nth-child(5) {
  animation-delay: 0.25s;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--xk-bg-indigo);
  border: 2px solid var(--xk-accent-orange);
  box-shadow: 0 0 12px rgba(255, 122, 26, 0.6);
}

.page-about .about-timeline__version {
  display: inline-block;
  margin-bottom: 6px;
  padding: 2px 12px;
  border: 1px solid var(--xk-border);
  border-radius: 999px;
  font-family: var(--xk-font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--xk-accent-cyan);
}

.page-about .about-timeline__item h3 {
  margin: 0 0 8px;
  font-family: var(--xk-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: 15px;
  color: var(--xk-text-pearl);
}

.page-about .about-data {
  padding: 64px 0;
  background: var(--xk-bg-teal);
  border-top: 1px solid var(--xk-border);
}

.page-about .about-data__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.page-about .about-data__card {
  padding: 24px 18px;
  background: rgba(11, 18, 32, 0.5);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-data__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--xk-font-head);
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
}

.page-about .about-data__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--xk-font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

.page-about .about-data__card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--xk-text-pearl);
}

.page-about .about-data__card--orange .about-data__num {
  color: var(--xk-accent-orange);
}

.page-about .about-data__card--cyan .about-data__num {
  color: var(--xk-accent-cyan);
}

.page-about .about-data__card--gold .about-data__num {
  color: var(--xk-accent-gold);
}

.page-about .about-data__card--teal .about-data__num {
  color: #5CC8BE;
}

.page-about .about-data__card--indigo .about-data__num {
  color: #9B9BE0;
}

.page-about .about-data__card--maroon .about-data__num {
  color: #E081A0;
}

.page-about .about-data__media {
  margin-top: 24px;
  overflow: hidden;
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-data__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-team {
  padding: 64px 0;
  border-top: 1px solid var(--xk-border);
}

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

.page-about .about-team__card {
  position: relative;
  padding: 28px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-team__code {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: var(--xk-font-head);
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  color: rgba(230, 232, 237, 0.12);
}

.page-about .about-team__card h3 {
  margin: 0 0 8px;
  font-family: var(--xk-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

.page-about .about-team__card p {
  margin: 0;
  font-size: 15px;
  color: var(--xk-text-pearl);
}

.page-about .about-honor {
  padding: 64px 0;
  background: var(--xk-bg-maroon);
  border-top: 1px solid var(--xk-border);
}

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

.page-about .about-honor__item {
  padding: 28px 24px;
  background: rgba(11, 18, 32, 0.4);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
}

.page-about .about-honor__year {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(201, 162, 39, 0.14);
  font-family: var(--xk-font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--xk-accent-gold);
}

.page-about .about-honor__item h3 {
  margin: 0 0 8px;
  font-family: var(--xk-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

.page-about .about-honor__item p {
  margin: 0;
  font-size: 15px;
  color: var(--xk-text-pearl);
}

.page-about .about-partner {
  padding: 64px 0;
  border-top: 1px solid var(--xk-border);
}

.page-about .about-partner__network {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding: 16px 0;
}

.page-about .about-partner__core {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid var(--xk-border);
  background: radial-gradient(circle at 30% 30%, var(--xk-bg-indigo), var(--xk-bg-deep) 70%);
  box-shadow: 0 0 40px rgba(83, 216, 251, 0.12), 0 2px 8px rgba(0, 0, 0, 0.2);
  text-align: center;
  order: -1;
}

.page-about .about-partner__core::before,
.page-about .about-partner__core::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 16px;
  height: 1px;
  background: repeating-linear-gradient(to right, rgba(83, 216, 251, 0.6) 0 4px, transparent 4px 8px);
  opacity: 0;
}

.page-about .about-partner__core-name {
  font-family: var(--xk-font-head);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--xk-text-silver);
}

.page-about .about-partner__core-slogan {
  margin-top: 6px;
  font-size: 13px;
  color: var(--xk-accent-cyan);
}

.page-about .about-partner__list {
  display: grid;
  gap: 16px;
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partner__node {
  padding: 24px 20px;
  text-align: center;
  background: rgba(11, 18, 32, 0.6);
  border: 1px solid var(--xk-border);
  border-radius: var(--xk-radius);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.page-about .about-partner__node:hover {
  border-color: var(--xk-accent-cyan);
  box-shadow: 0 0 24px rgba(83, 216, 251, 0.08);
  transform: translateY(-2px);
}

.page-about .about-partner__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  border-radius: 50%;
  border: 1px solid var(--xk-border);
  background: rgba(83, 216, 251, 0.1);
  font-size: 18px;
  color: var(--xk-text-silver);
}

.page-about .about-partner__node h3 {
  margin: 0 0 8px;
  font-family: var(--xk-font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--xk-text-silver);
}

.page-about .about-partner__node p {
  margin: 0;
  font-size: 14px;
  color: var(--xk-text-pearl);
}

.page-about .about-next {
  padding: 64px 0;
  background: var(--xk-bg-indigo);
  border-top: 1px solid var(--xk-border);
  text-align: center;
}

.page-about .about-next h2 {
  margin: 0 0 12px;
  font-family: var(--xk-font-head);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--xk-text-silver);
}

.page-about .about-next > .xk-container > p {
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--xk-text-pearl);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

@keyframes about-fade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes about-rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 80px 24px 100px;
  }

  .page-about .about-hero h1 {
    font-size: 42px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, 1fr);
    max-width: 680px;
  }

  .page-about .about-stat__num {
    font-size: 34px;
  }

  .page-about .about-story,
  .page-about .about-milestone,
  .page-about .about-data,
  .page-about .about-team,
  .page-about .about-honor,
  .page-about .about-partner,
  .page-about .about-next {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .page-about .about-story__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-section-head h2 {
    font-size: 34px;
  }

  .page-about .about-timeline::before {
    left: 50%;
  }

  .page-about .about-timeline__item {
    width: 50%;
    padding: 0 40px 48px;
  }

  .page-about .about-timeline__item:nth-child(odd) {
    margin-left: 50%;
    text-align: left;
    padding-left: 40px;
    padding-right: 0;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
    padding-left: 0;
  }

  .page-about .about-timeline__item:nth-child(odd)::before {
    left: -6px;
  }

  .page-about .about-timeline__item:nth-child(even)::before {
    left: 0;
    right: 0;
    margin-left: auto;
    margin-right: -22px;
  }

  .page-about .about-data__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-about .about-data__card p {
    font-size: 14px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-about .about-honor__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-about .about-partner__network {
    flex-direction: row;
    justify-content: center;
    gap: 40px;
  }

  .page-about .about-partner__core {
    order: 0;
    width: 220px;
    height: 220px;
  }

  .page-about .about-partner__list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .page-about .about-partner__node {
    flex: 0 1 280px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero h1 {
    font-size: 46px;
  }

  .page-about .about-partner__network {
    display: grid;
    grid-template-columns: 1fr 240px 1fr;
    grid-template-areas:
      "data core club"
      ". media .";
    align-items: center;
    gap: 24px;
  }

  .page-about .about-partner__core {
    grid-area: core;
    order: 0;
    width: 240px;
    height: 240px;
  }

  .page-about .about-partner__core::before,
  .page-about .about-partner__core::after {
    opacity: 1;
  }

  .page-about .about-partner__core::before {
    left: -24px;
  }

  .page-about .about-partner__core::after {
    right: -24px;
  }

  .page-about .about-partner__list {
    display: contents;
  }

  .page-about .about-partner__node--data {
    grid-area: data;
  }

  .page-about .about-partner__node--club {
    grid-area: club;
  }

  .page-about .about-partner__node--media {
    grid-area: media;
    max-width: 360px;
  }
}