.page-about {
  --about-red: #E01A22;
  --about-orange: #F7931E;
  --about-blue: #1F2A3C;
  --about-yellow: #FFD100;
  --about-white: #F5F5F5;
  --about-black: #111111;
  --about-text: #333333;
  --about-line: #E0E0E0;
  --about-border: 3px solid var(--about-black);
  --about-shadow: 6px 6px 0 var(--about-black);
  --about-data: 'Roboto Mono', 'Courier New', monospace;
  --about-head: 'Archivo Black', 'Helvetica Neue', Arial, sans-serif;
  --about-sub: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --about-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--about-white);
  color: var(--about-text);
}

.page-about .breadcrumb {
  max-width: var(--container-width, 1360px);
  margin: 0 auto;
  padding: 16px 20px 0;
  font-family: var(--about-sub);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .breadcrumb__link {
  color: var(--about-black);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 2px solid transparent;
  transition: border-color var(--ease-fast, 140ms ease);
}

.page-about .breadcrumb__link:hover {
  border-bottom-color: var(--about-red);
}

.page-about .breadcrumb__sep {
  color: var(--about-red);
  font-weight: 700;
}

.page-about .breadcrumb__current {
  color: var(--about-text);
  font-weight: 400;
}

.page-about .about-hero {
  background-color: var(--about-blue);
  border-bottom: var(--about-border);
  box-shadow: var(--about-shadow);
  margin: 20px 12px 0;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 220px;
  background: linear-gradient(135deg, transparent 48%, var(--about-red) 48%, var(--about-red) 52%, transparent 52%);
  opacity: 0.9;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "ATHLETE";
  position: absolute;
  bottom: -20px;
  left: 20px;
  font-family: var(--about-head);
  font-size: 96px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.08);
  pointer-events: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-width, 1360px);
  margin: 0 auto;
  padding: 48px 20px 56px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-hero__kicker {
  font-family: var(--about-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--about-orange);
  margin: 0 0 16px;
  border-left: 4px solid var(--about-orange);
  padding-left: 12px;
}

.page-about .about-hero__title {
  font-family: var(--about-head);
  font-size: clamp(28px, 6vw, 64px);
  line-height: 1.05;
  color: var(--about-white);
  margin: 0 0 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-about .about-hero__title span {
  color: var(--about-red);
  position: relative;
  display: inline-block;
}

.page-about .about-hero__lead {
  font-family: var(--about-body);
  font-size: 16px;
  line-height: 1.7;
  color: rgba(245, 245, 245, 0.82);
  margin: 0;
  max-width: 680px;
}

.page-about .about-hero__side {
  background-color: var(--about-white);
  border: var(--about-border);
  box-shadow: var(--about-shadow);
  padding: 24px 20px;
  align-self: start;
}

.page-about .about-hero__side-label {
  font-family: var(--about-sub);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--about-red);
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--about-black);
}

.page-about .about-chapters {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-chapters__link {
  display: inline-block;
  font-family: var(--about-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--about-black);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color 140ms ease, border-color 140ms ease, padding-left 140ms ease;
}

.page-about .about-chapters__link:hover {
  color: var(--about-red);
  border-bottom-color: var(--about-red);
  padding-left: 6px;
}

.page-about .about-hero__side .btn {
  display: block;
  text-align: center;
}

.page-about .about-chapter {
  position: relative;
  border-bottom: var(--about-border);
  margin: 0 12px;
}

.page-about .about-chapter--start {
  background-color: var(--about-blue);
  color: var(--about-white);
  border-left: var(--about-border);
  border-right: var(--about-border);
  margin-top: 12px;
}

.page-about .about-chapter--start .about-chapter__title {
  color: var(--about-white);
}

.page-about .about-chapter--athlete {
  background-color: var(--about-white);
  border-left: var(--about-border);
  border-right: var(--about-border);
}

.page-about .about-chapter--help {
  background-color: var(--about-blue);
  color: var(--about-white);
  border-left: var(--about-border);
  border-right: var(--about-border);
}

.page-about .about-chapter--help .about-chapter__title {
  color: var(--about-white);
}

.page-about .about-chapter--help .about-subtitle {
  color: var(--about-orange);
}

.page-about .about-chapter--live {
  background-color: var(--about-white);
  border-left: var(--about-border);
  border-right: var(--about-border);
}

.page-about .about-chapter--design {
  background-color: var(--about-blue);
  color: var(--about-white);
  border-left: var(--about-border);
  border-right: var(--about-border);
  margin-bottom: 40px;
}

.page-about .about-chapter--design .about-chapter__title {
  color: var(--about-white);
}

.page-about .about-chapter__grid {
  max-width: var(--container-width, 1360px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 40px 20px;
}

.page-about .about-chapter__header {
  border-bottom: 3px solid currentColor;
  padding-bottom: 16px;
  margin-bottom: 28px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.page-about .about-chapter__num {
  font-family: var(--about-data);
  font-size: 72px;
  font-weight: 500;
  line-height: 0.9;
  color: var(--about-red);
  display: block;
  letter-spacing: -0.04em;
}

.page-about .about-chapter--start .about-chapter__num,
.page-about .about-chapter--help .about-chapter__num,
.page-about .about-chapter--design .about-chapter__num {
  color: var(--about-orange);
}

.page-about .about-chapter__side-note {
  font-family: var(--about-data);
  font-size: 12px;
  line-height: 1.5;
  color: rgba(17, 17, 17, 0.62);
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 4px 0 0;
  max-width: 120px;
}

.page-about .about-chapter--start .about-chapter__side-note,
.page-about .about-chapter--help .about-chapter__side-note,
.page-about .about-chapter--design .about-chapter__side-note {
  color: rgba(245, 245, 245, 0.6);
}

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

.page-about .about-chapter__title {
  font-family: var(--about-head);
  font-size: 26px;
  line-height: 1.15;
  margin: 0 0 18px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--about-black);
  position: relative;
  padding-bottom: 12px;
}

.page-about .about-chapter__title::after {
  content: "";
  display: block;
  width: 56px;
  height: 5px;
  background-color: var(--about-red);
  margin-top: 12px;
}

.page-about .about-chapter__content p {
  font-family: var(--about-body);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 14px;
}

.page-about .about-chapter--start .about-chapter__content p,
.page-about .about-chapter--help .about-chapter__content p,
.page-about .about-chapter--design .about-chapter__content p {
  color: rgba(245, 245, 245, 0.86);
}

.page-about .about-chapter__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  margin: 24px 0 0;
  border: 3px solid var(--about-white);
  box-shadow: 6px 6px 0 rgba(245, 245, 245, 0.22);
}

.page-about .about-athlete__visual {
  margin-top: 24px;
  background-color: var(--about-blue);
  border: 3px solid var(--about-black);
  box-shadow: 6px 6px 0 var(--about-black);
  padding: 12px;
}

.page-about .about-athlete__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--about-black);
}

.page-about .about-subtitle {
  font-family: var(--about-sub);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--about-red);
  margin: 26px 0 14px;
  border-left: 4px solid currentColor;
  padding-left: 10px;
}

.page-about .summary-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .summary-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background-color: rgba(245, 245, 245, 0.06);
  border: 1px solid rgba(245, 245, 245, 0.18);
  padding: 12px 14px;
  font-family: var(--about-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--about-white);
}

.page-about .summary-list__num {
  font-family: var(--about-data);
  font-size: 13px;
  font-weight: 500;
  color: var(--about-orange);
  background-color: var(--about-black);
  border: 1px solid var(--about-orange);
  padding: 2px 6px;
  flex-shrink: 0;
  margin-top: 2px;
}

.page-about .about-help__timeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0 4px;
  padding: 14px 12px;
  background-color: var(--about-white);
  border-left: 6px solid var(--about-red);
  box-shadow: 4px 4px 0 rgba(17, 17, 17, 0.28);
}

.page-about .about-help__timeline-old,
.page-about .about-help__timeline-new {
  font-family: var(--about-data);
  font-size: 14px;
  font-weight: 500;
  color: var(--about-black);
  background-color: var(--about-yellow);
  border: 2px solid var(--about-black);
  padding: 6px 10px;
}

.page-about .about-help__timeline-new {
  background-color: var(--about-red);
  color: var(--about-white);
}

.page-about .about-help__timeline-arrow {
  font-family: var(--about-data);
  font-size: 22px;
  color: var(--about-black);
  font-weight: 700;
}

.page-about .about-live__banner {
  margin-top: 24px;
  border: 3px solid var(--about-black);
  box-shadow: 6px 6px 0 var(--about-black);
  background-color: var(--about-blue);
  padding: 10px;
}

.page-about .about-live__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--about-black);
}

.page-about .tag-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .chip {
  display: inline-block;
  font-family: var(--about-data);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 2px solid var(--about-black);
}

.page-about .chip--red {
  background-color: var(--about-red);
  color: var(--about-white);
}

.page-about .chip--yellow {
  background-color: var(--about-yellow);
  color: var(--about-black);
}

.page-about .chip--blue {
  background-color: var(--about-blue);
  color: var(--about-white);
}

.page-about .btn {
  display: inline-block;
  font-family: var(--about-sub);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 20px;
  border: 3px solid var(--about-black);
  box-shadow: 5px 5px 0 var(--about-black);
  transition: transform 140ms ease, box-shadow 140ms ease;
  cursor: pointer;
  margin-top: 4px;
}

.page-about .btn:hover {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 var(--about-black);
}

.page-about .btn--accent {
  background-color: var(--about-red);
  color: var(--about-white);
}

.page-about .btn--outline {
  background-color: var(--about-white);
  color: var(--about-black);
}

.page-about .about-hero__side .btn--accent {
  background-color: var(--about-blue);
  color: var(--about-white);
  border-color: var(--about-blue);
  box-shadow: 5px 5px 0 var(--about-red);
}

.page-about .about-hero__side .btn--accent:hover {
  box-shadow: 2px 2px 0 var(--about-red);
}

@media (min-width: 768px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: star;
    padding: 64px 28px 72px;
  }

  .page-about .about-hero__title {
    font-size: 52px;
  }

  .page-about .about-hero__lead {
    font-size: 18px;
  }

  .page-about .about-chapter__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 40px;
    padding: 64px 28px;
  }

  .page-about .about-chapter__header {
    border-bottom: none;
    border-right: 3px solid currentColor;
    flex-direction: column;
    justify-content: flex-start;
    padding-bottom: 0;
    margin-bottom: 0;
    padding-right: 20px;
  }

  .page-about .about-chapter__num {
    font-size: 96px;
  }

  .page-about .about-chapter__side-note {
    text-align: left;
    margin-top: 16px;
  }

  .page-about .about-chapter__title {
    font-size: 36px;
  }

  .page-about .about-chapter__content p {
    font-size: 16px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-chapter__grid {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .page-about .about-chapter__img {
    max-width: 800px;
    margin-left: auto;
  }

  .page-about .about-athlete__visual {
    max-width: 420px;
    margin-left: auto;
  }

  .page-about .about-live__banner {
    max-width: 720px;
    margin-left: auto;
  }
}