.page-about {
  overflow-x: clip;
  background: var(--paper);
  color: var(--night);
}

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

.page-about .about-section {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-about .about-chapter-num {
  display: block;
  flex: 0 0 auto;
  font-family: var(--num-font);
  font-weight: 700;
  font-size: clamp(3.2rem, 8vw, 5.4rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-about .about-section-head {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-about .about-section-head h2 {
  font-family: var(--head-font);
  font-weight: 900;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0.5rem 0 0;
}

.page-about .about-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(600px, 92vh, 920px);
  padding: calc(var(--header-h) + 1.5rem) var(--gutter) 3.5rem;
  background: var(--deep-blue);
  color: var(--white);
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 1.6rem;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration-color: rgba(255, 255, 255, 0.3);
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--gold);
}

.page-about .about-hero .breadcrumb span {
  color: var(--gold);
}

.page-about .about-hero .section-label {
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.page-about .about-hero h1 {
  font-family: var(--head-font);
  font-weight: 900;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}

.page-about .about-hero-lead {
  max-width: 640px;
  margin: 0 0 2rem;
  font-size: 1.02rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
}

.page-about .about-hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-hero-scroll:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-about .about-hero-scroll span {
  font-size: 1.1rem;
  line-height: 1;
}

.page-about .about-story {
  background: var(--paper);
  overflow: hidden;
}

.page-about .about-story::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold) 40%, var(--orange) 100%);
}

.page-about .about-story-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.page-about .about-story-copy p {
  margin: 0 0 1.1rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--night);
}

.page-about .about-story-copy p:last-child {
  margin-bottom: 0;
}

.page-about .about-story-copy .about-chapter-num {
  margin-bottom: 1rem;
}

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

.page-about .about-story-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.page-about .about-story-fig figcaption {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  color: var(--line);
  text-align: right;
}

.page-about .about-mission {
  background: var(--mist);
}

.page-about .about-mission-cards {
  display: grid;
  gap: 1.25rem;
}

.page-about .about-mission-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(1.6rem, 4vw, 2.4rem);
  border: 1px solid rgba(15, 26, 44, 0.09);
  border-top: 6px solid var(--gold);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-mission-card--with {
  border-top-color: var(--orange);
}

.page-about .about-mission-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 38px rgba(15, 26, 44, 0.14);
}

.page-about .about-mission-tag {
  display: inline-block;
  margin-bottom: 1.1rem;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  background: var(--mist);
  color: var(--green);
  font-family: var(--num-font);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-about .about-mission-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--head-font);
  font-weight: 900;
  font-size: 1.45rem;
  line-height: 1.3;
}

.page-about .about-mission-card p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--night);
}

.page-about .about-mission-points {
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
}

.page-about .about-mission-points li {
  position: relative;
  margin-bottom: 0.6rem;
  padding-left: 1.6rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--night);
}

.page-about .about-mission-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .about-mission-card--with .about-mission-points li::before {
  background: var(--orange);
}

.page-about .about-mission-card .btn-energy {
  margin-top: auto;
}

.page-about .about-numbers {
  background: var(--green);
  color: var(--white);
  overflow: hidden;
}

.page-about .about-numbers::after {
  content: "";
  position: absolute;
  right: -4%;
  bottom: -3rem;
  width: 58%;
  height: 130px;
  background: rgba(255, 255, 255, 0.07);
  clip-path: polygon(0 100%, 18% 48%, 34% 64%, 52% 18%, 66% 52%, 80% 30%, 100% 68%, 100% 100%);
}

.page-about .about-numbers-head h2 {
  color: var(--white);
}

.page-about .about-numbers-head .section-label {
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-numbers-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
}

.page-about .about-stat {
  padding: 1.8rem 1.2rem 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
  backdrop-filter: blur(2px);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--num-font);
  font-weight: 700;
  font-size: clamp(2.8rem, 6vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-stat-plus {
  margin-left: 2px;
  font-size: 0.7em;
  vertical-align: top;
  color: var(--gold);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-about .about-stat-note {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.84rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.72);
}

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

.page-about .about-standards-head h2 {
  color: var(--white);
}

.page-about .about-standards-head .section-label {
  color: rgba(255, 255, 255, 0.65);
}

.page-about .about-standards-list {
  display: grid;
  gap: 1.1rem;
}

.page-about .about-standard-item {
  padding: 1.7rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 4px solid var(--gold);
  border-radius: 0 14px 14px 0;
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-standard-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
}

.page-about .about-standard-index {
  display: block;
  margin-bottom: 0.8rem;
  font-family: var(--num-font);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-standard-item h3 {
  margin: 0 0 0.6rem;
  font-family: var(--head-font);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--white);
}

.page-about .about-standard-item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-team {
  background: var(--paper);
}

.page-about .about-team-grid {
  display: grid;
  gap: 1.1rem;
}

.page-about .about-team-card {
  position: relative;
  overflow: hidden;
  padding: 1.6rem 1.5rem;
  border: 1px solid rgba(15, 26, 44, 0.1);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 6px 16px rgba(15, 26, 44, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-team-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--green), var(--gold));
  opacity: 0.8;
}

.page-about .about-team-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 30px rgba(15, 26, 44, 0.12);
}

.page-about .about-team-code {
  display: inline-block;
  margin-bottom: 1.1rem;
  padding: 0.28rem 0.65rem;
  border-radius: 4px;
  background: var(--green);
  color: var(--white);
  font-family: var(--num-font);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
}

.page-about .about-team-card h3 {
  margin: 0 0 0.55rem;
  font-family: var(--head-font);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--night);
}

.page-about .about-team-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--night);
}

.page-about .about-team-fig {
  margin: 2.5rem 0 0;
}

.page-about .about-team-fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.page-about .about-timeline {
  background: var(--night);
  color: var(--white);
  padding-top: 0;
}

.page-about .about-timeline-bg {
  height: 100px;
  overflow: hidden;
}

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

.page-about .about-timeline-content {
  padding-top: clamp(3rem, 6vw, 4.5rem);
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}

.page-about .about-timeline-head h2 {
  color: var(--white);
}

.page-about .about-timeline-head .section-label {
  color: rgba(255, 255, 255, 0.65);
}

.page-about .about-timeline-list {
  position: relative;
  margin: clamp(2.5rem, 6vw, 4rem) 0 0;
}

.page-about .about-timeline-list::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 12px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(var(--gold), rgba(201, 162, 75, 0.15));
}

.page-about .about-timeline-item {
  position: relative;
  margin: 0 0 1.4rem 2.4rem;
  padding: 1.5rem 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-about .about-timeline-item:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(6px);
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-2.4rem + 2px);
  top: 1.7rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--night);
  box-shadow: 0 0 0 2px rgba(201, 162, 75, 0.4);
}

.page-about .about-timeline-year {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.32rem 0.95rem 0.4rem;
  border-radius: 36px 10px 32px 12px;
  background: var(--gold);
  color: var(--night);
  font-family: var(--num-font);
  font-style: italic;
  font-weight: 700;
  font-size: 1.35rem;
  line-height: 1.1;
  transform: rotate(-2deg);
  box-shadow: 3px 4px 0 rgba(0, 0, 0, 0.22);
}

.page-about .about-timeline-item h3 {
  margin: 0 0 0.55rem;
  font-family: var(--head-font);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--white);
}

.page-about .about-timeline-item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-echo {
  background: var(--green-deep);
  color: var(--white);
  overflow: hidden;
}

.page-about .about-echo::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -10%;
  width: 55%;
  height: 220%;
  border-radius: 30px;
  background: rgba(201, 162, 75, 0.12);
  transform: rotate(-12deg);
}

.page-about .about-echo-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.page-about .about-echo .about-chapter-num {
  color: var(--orange);
  margin-bottom: 1rem;
}

.page-about .about-echo .section-label {
  color: var(--gold);
}

.page-about .about-echo h2 {
  margin: 0.6rem 0 1.2rem;
  font-family: var(--head-font);
  font-weight: 900;
  font-size: clamp(1.7rem, 4.2vw, 3rem);
  line-height: 1.25;
  color: var(--white);
}

.page-about .about-echo p {
  margin: 0 0 1.2rem;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-about .about-echo .btn-energy {
  margin-top: 0.6rem;
}

@media (min-width: 700px) {
  .page-about .about-section-head {
    flex-direction: row;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .page-about .about-numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-timeline-bg {
    height: 120px;
  }
}

@media (min-width: 960px) {
  .page-about .about-story-grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 4rem;
  }

  .page-about .about-mission-cards {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .page-about .about-numbers-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-standards-list {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-team-fig {
    margin-top: 3.5rem;
  }

  .page-about .about-timeline-list::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about .about-timeline-item {
    width: calc(50% - 3.2rem);
    margin: 0 0 2.4rem;
  }

  .page-about .about-timeline-item:nth-child(even) {
    margin-left: auto;
  }

  .page-about .about-timeline-item:nth-child(odd) {
    text-align: right;
  }

  .page-about .about-timeline-item:nth-child(odd)::before {
    left: auto;
    right: calc(-3.2rem + 2px);
  }

  .page-about .about-timeline-item:nth-child(even)::before {
    left: calc(-3.2rem + 2px);
  }

  .page-about .about-timeline-item:nth-child(odd):hover {
    transform: translateX(-6px);
  }

  .page-about .about-timeline-item:nth-child(even):hover {
    transform: translateX(6px);
  }
}