.page-about {
  --about-green: #00FFA3;
  --about-orange: #FF6B35;
  --about-bg-panel: rgba(17, 34, 64, 0.72);
  --about-glass: rgba(13, 33, 55, 0.86);
  --about-line: #1D3A5F;
  --about-muted: #8892B0;
  --about-text: #E6F1FF;
  background: var(--yx-bg);
  color: var(--yx-text);
  overflow-x: clip;
  font-family: var(--yx-font-body);
}

.page-about .about-width {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-green);
  line-height: 1.4;
  font-family: var(--yx-font-data);
}

.page-about .about-kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--about-green);
  display: inline-block;
  flex: 0 0 auto;
}

.page-about .about-section-title {
  margin: 0 0 18px;
  font-family: var(--yx-font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--about-text);
}

.page-about .about-section-lead {
  max-width: 680px;
  margin: 0;
  color: var(--about-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.page-about .about-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 40px;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--about-muted);
  font-family: var(--yx-font-body);
}

.page-about .about-breadcrumb a {
  color: var(--about-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-breadcrumb a:hover,
.page-about .about-breadcrumb a:focus-visible {
  color: var(--about-green);
  border-color: var(--about-green);
}

.page-about .about-breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--about-line);
}

.page-about .about-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 4px;
  font-family: var(--yx-font-body);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-btn--ghost {
  border: 1px solid var(--about-line);
  color: var(--about-text);
  background: transparent;
}

.page-about .about-btn--ghost:hover,
.page-about .about-btn--ghost:focus-visible {
  border-color: var(--about-green);
  color: var(--about-green);
  transform: translateY(-2px);
}

.page-about .about-btn--orange {
  border: 1px solid var(--about-orange);
  background: var(--about-orange);
  color: #0A192F;
}

.page-about .about-btn--orange:hover,
.page-about .about-btn--orange:focus-visible {
  filter: brightness(1.08);
  box-shadow: 0 8px 28px rgba(255, 107, 53, 0.24);
  transform: translateY(-2px);
}

.page-about .about-btn--solid {
  border: 1px solid var(--about-green);
  background: var(--about-green);
  color: #0A192F;
}

.page-about .about-btn--solid:hover,
.page-about .about-btn--solid:focus-visible {
  box-shadow: 0 8px 28px rgba(0, 255, 163, 0.22);
  transform: translateY(-2px);
}

/* ===== 首屏 hero ===== */
.page-about .about-hero {
  position: relative;
  padding: clamp(2.8rem, 6vw, 5.5rem) 0 0;
  overflow: hidden;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 96%;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.12), rgba(0, 255, 163, 0.06) 48%, transparent 72%);
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 58, 95, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 58, 95, 0.22) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.5), transparent 72%);
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.5), transparent 72%);
  pointer-events: none;
}

.page-about .about-hero__ghost {
  position: absolute;
  right: -0.06em;
  bottom: -0.2em;
  font-family: var(--yx-font-head);
  font-weight: 900;
  font-size: clamp(7rem, 19vw, 13rem);
  line-height: 1;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0, 255, 163, 0.2);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 34px;
}

.page-about .about-hero__context {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-left: 2px solid var(--about-line);
  padding-left: 14px;
}

.page-about .about-hero__eyebrow {
  font-family: var(--yx-font-data);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--about-green);
}

.page-about .about-hero__motto {
  font-size: 0.92rem;
  color: var(--about-muted);
  line-height: 1.5;
}

.page-about .about-hero__title {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0 22px;
  font-family: var(--yx-font-head);
  font-weight: 900;
  font-size: clamp(2.3rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--about-text);
}

.page-about .about-hero__title-accent {
  color: var(--about-green);
  font-size: 0.42em;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.page-about .about-hero__lead {
  max-width: 620px;
  margin: 0 0 26px;
  color: var(--about-muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero__badge {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 4px 14px;
  border: 1px solid var(--about-line);
  border-radius: 4px;
  background: var(--about-glass);
  padding: 20px 18px;
  width: 100%;
  max-width: 320px;
}

.page-about .about-hero__badge-year {
  grid-row: span 2;
  font-family: var(--yx-font-data);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--about-orange);
  line-height: 1;
}

.page-about .about-hero__badge-name {
  font-family: var(--yx-font-head);
  font-size: 1.1rem;
  color: var(--about-text);
  align-self: end;
}

.page-about .about-hero__badge-note {
  font-size: 0.8rem;
  color: var(--about-muted);
  font-family: var(--yx-font-data);
  align-self: start;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--about-line);
}

.page-about .about-hero__stat {
  margin: 0;
  padding: 24px 0;
  border-bottom: 1px solid var(--about-line);
  display: grid;
  gap: 4px;
}

.page-about .about-hero__stat dt {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--about-muted);
  text-transform: uppercase;
  font-family: var(--yx-font-data);
}

.page-about .about-hero__stat-num {
  font-family: var(--yx-font-data);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--about-green);
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__stat-unit {
  font-size: 0.85rem;
  color: var(--about-muted);
  line-height: 1.5;
}

/* ===== 品牌使命与愿景 ===== */
.page-about .about-mission {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  position: relative;
}

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

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

.page-about .about-mission__lead {
  font-size: 1.12rem;
  line-height: 1.9;
  color: var(--about-text);
  margin: 0 0 16px;
}

.page-about .about-mission__body {
  margin: 0 0 14px;
  color: var(--about-muted);
  line-height: 1.85;
  font-size: 0.98rem;
}

.page-about .about-mission__facts {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 30px 26px;
  background: var(--about-glass);
  border: 1px solid var(--about-line);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-about .about-mission__fact {
  display: grid;
  gap: 6px;
  padding-left: 16px;
  border-left: 2px solid var(--about-green);
}

.page-about .about-mission__fact-num {
  font-family: var(--yx-font-data);
  font-size: 2rem;
  font-weight: 700;
  color: var(--about-green);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-mission__fact-label {
  font-size: 0.88rem;
  color: var(--about-muted);
  line-height: 1.5;
}

.page-about .about-mission__trust {
  margin: 12px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--about-line);
  font-size: 0.9rem;
  color: var(--about-text);
  font-family: var(--yx-font-data);
  line-height: 1.7;
}

/* ===== 发展历程时间线 ===== */
.page-about .about-route {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  background:
    radial-gradient(circle at 14% 18%, rgba(0, 255, 163, 0.08), transparent 30%),
    var(--yx-bg-panel);
  border-block: 1px solid var(--about-line);
}

.page-about .about-route__head {
  margin-bottom: 46px;
}

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

.page-about .about-route__aside {
  display: grid;
  gap: 12px;
  align-content: start;
  min-width: 0;
}

.page-about .about-route__media {
  border: 1px solid var(--about-line);
  border-radius: 4px;
  overflow: hidden;
  background: #0D2137;
}

.page-about .about-route__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-route__caption {
  margin: 0;
  font-family: var(--yx-font-data);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--about-muted);
}

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

.page-about .about-route__timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--about-green) 0%, var(--about-line) 55%, rgba(13, 33, 55, 0) 100%);
}

.page-about .about-route__item {
  position: relative;
  padding: 0 0 30px 56px;
}

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

.page-about .about-route__marker {
  position: absolute;
  left: 10px;
  top: 10px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--about-green);
  box-shadow:
    0 0 0 5px rgba(0, 255, 163, 0.12),
    0 0 22px rgba(0, 255, 163, 0.38);
}

.page-about .about-route__card {
  position: relative;
  min-height: 130px;
  padding: 24px 22px 20px;
  background: var(--about-glass);
  border: 1px solid var(--about-line);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-about .about-route__item:hover .about-route__card,
.page-about .about-route__item:focus-within .about-route__card {
  transform: translateX(6px);
  border-color: rgba(0, 255, 163, 0.72);
  background: rgba(17, 34, 64, 0.94);
}

.page-about .about-route__year {
  position: absolute;
  top: -10px;
  right: 14px;
  font-family: var(--yx-font-data);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--about-orange);
  letter-spacing: 0.04em;
}

.page-about .about-route__name {
  margin: 0 0 10px;
  font-family: var(--yx-font-head);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--about-text);
}

.page-about .about-route__desc {
  margin: 0;
  color: var(--about-muted);
  font-size: 0.93rem;
  line-height: 1.75;
}

/* ===== 核心技术 S96F ===== */
.page-about .about-tech {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.page-about .about-tech__head {
  margin-bottom: 40px;
}

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

.page-about .about-tech__canvas {
  position: relative;
  min-width: 0;
  padding: 18px;
  background: linear-gradient(160deg, rgba(17, 34, 64, 0.45), rgba(13, 33, 55, 0.78));
  border: 1px solid var(--about-line);
  border-radius: 6px;
  box-shadow: 0 24px 48px rgba(5, 14, 26, 0.28);
}

.page-about .about-tech__canvas::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  width: 44px;
  height: 14px;
  border-top: 2px solid var(--about-green);
  border-left: 2px solid var(--about-green);
  opacity: 0.45;
}

.page-about .about-tech__canvas::after {
  content: "";
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 44px;
  height: 14px;
  border-bottom: 2px solid var(--about-orange);
  border-right: 2px solid var(--about-orange);
  opacity: 0.45;
}

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

.page-about .about-tech__list {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
  align-content: center;
}

.page-about .about-tech__item {
  position: relative;
  padding: 2px 0 2px 20px;
  border-left: 2px solid var(--about-line);
  transition: border-color 0.2s ease;
}

.page-about .about-tech__item:hover,
.page-about .about-tech__item:focus-within {
  border-left-color: var(--about-green);
}

.page-about .about-tech__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--about-green);
}

.page-about .about-tech__item h3 {
  margin: 0 0 7px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--about-text);
  font-family: var(--yx-font-head);
}

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

/* ===== 资质与荣誉 ===== */
.page-about .about-honors {
  position: relative;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  border-block: 1px solid var(--about-line);
  overflow: hidden;
}

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

.page-about .about-honors__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 25, 47, 0.94), rgba(17, 34, 64, 0.72) 55%, rgba(13, 33, 55, 0.88));
}

.page-about .about-honors__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.1);
}

.page-about .about-honors__container {
  position: relative;
  z-index: 1;
}

.page-about .about-honors__head {
  margin-bottom: 44px;
}

.page-about .about-honors__list {
  display: grid;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-honors__badge {
  position: relative;
  padding: 30px 26px 26px;
  background: rgba(13, 33, 55, 0.82);
  border: 1px solid rgba(0, 255, 163, 0.24);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-honors__badge:hover {
  border-color: rgba(0, 255, 163, 0.7);
  transform: translateY(-4px);
}

.page-about .about-honors__code {
  display: inline-block;
  margin-bottom: 18px;
  padding: 4px 8px;
  font-family: var(--yx-font-data);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--about-green);
  border: 1px solid rgba(0, 255, 163, 0.36);
  border-radius: 2px;
}

.page-about .about-honors__badge h3 {
  margin: 0 0 10px;
  font-family: var(--yx-font-head);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--about-text);
}

.page-about .about-honors__badge p {
  margin: 0;
  color: var(--about-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-about .about-honors__note {
  margin-top: 32px;
  color: var(--about-muted);
  font-size: 0.85rem;
  font-family: var(--yx-font-data);
  border-top: 1px solid var(--about-line);
  padding-top: 22px;
}

/* ===== 合作生态 ===== */
.page-about .about-eco {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.page-about .about-eco__head {
  margin-bottom: 42px;
}

.page-about .about-eco__grid {
  display: grid;
  gap: 20px;
  margin-bottom: 36px;
}

.page-about .about-eco__card {
  position: relative;
  padding: 30px 26px 26px;
  background: var(--about-bg-panel);
  border: 1px solid var(--about-line);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .about-eco__card:hover,
.page-about .about-eco__card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 163, 0.5);
}

.page-about .about-eco__index {
  display: inline-block;
  font-family: var(--yx-font-data);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--about-orange);
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}

.page-about .about-eco__card h3 {
  margin: 0 0 10px;
  font-family: var(--yx-font-head);
  font-size: 1.08rem;
  font-weight: 900;
  color: var(--about-text);
}

.page-about .about-eco__card p {
  margin: 0;
  color: var(--about-muted);
  font-size: 0.93rem;
  line-height: 1.75;
}

.page-about .about-eco__media {
  margin-bottom: 36px;
  border: 1px solid var(--about-line);
  border-radius: 4px;
  overflow: hidden;
  background: #0D2137;
}

.page-about .about-eco__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.page-about .about-eco__cta {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  padding: 30px 26px;
  background: linear-gradient(135deg, rgba(0, 255, 163, 0.08), rgba(255, 107, 53, 0.08));
  border: 1px solid var(--about-line);
  border-radius: 4px;
}

.page-about .about-eco__cta-kicker {
  margin: 0 0 6px;
  font-family: var(--yx-font-data);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--about-green);
}

.page-about .about-eco__cta-title {
  margin: 0;
  font-family: var(--yx-font-head);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--about-text);
  line-height: 1.35;
}

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

/* ===== 桌面端布局增强 ===== */
@media (min-width: 48rem) {
  .page-about .about-hero__inner {
    grid-template-columns: 1fr 1.6fr 1fr;
    align-items: end;
    gap: 44px;
  }

  .page-about .about-hero__context {
    margin-bottom: 12px;
  }

  .page-about .about-hero__badge {
    width: auto;
  }

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

  .page-about .about-hero__stat {
    border-bottom: none;
    padding: 26px 0;
  }

  .page-about .about-hero__stat + .about-hero__stat {
    border-left: 1px solid var(--about-line);
    padding-left: 26px;
  }

  .page-about .about-mission__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-route__layout {
    grid-template-columns: 380px 1fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-tech__layout {
    grid-template-columns: 6fr 4fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-honors__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-about .about-eco__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-about .about-eco__cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 36px 40px;
  }
}

@media (min-width: 72rem) {
  .page-about .about-width {
    width: min(1240px, calc(100% - 64px));
  }

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

  .page-about .about-route__timeline {
    margin-left: 6px;
  }

  .page-about .about-route__item {
    padding-left: 64px;
  }

  .page-about .about-route__timeline::before {
    left: 22px;
  }

  .page-about .about-route__marker {
    left: 14px;
  }

  .page-about .about-tech__canvas {
    padding: 24px;
  }
}