.page-about {
  --ab-orange: #FF6B35;
  --ab-silver: #C0C0C0;
  --ab-green: #39FF14;
  --ab-navy: #0B1B3A;
  --ab-teal: #0E4C5C;
  --ab-indigo: #3C2A5D;
  --ab-wine: #7B2D3B;
  --ab-light: #F5F7FA;
  --ab-white: #FFFFFF;
  --ab-border: rgba(255, 255, 255, 0.14);
  --ab-card-bg: rgba(255, 255, 255, 0.07);
  --ab-copy: rgba(255, 255, 255, 0.82);
  background: var(--ab-light);
}

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

.page-about .ky-imgbox img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__position,
.page-about__timeline-section,
.page-about__capability,
.page-about__team,
.page-about__honor {
  scroll-margin-top: 72px;
}

/* ==================== 封面 ==================== */
.page-about__hero {
  position: relative;
  padding: 96px 0 80px;
  background: linear-gradient(140deg, #0B1B3A 0%, #132A54 52%, #0E4C5C 100%);
  color: var(--ab-white);
  overflow: hidden;
}

.page-about__hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 360px;
  height: 360px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.18), transparent 70%);
  transform: rotate(12deg);
}

.page-about__hero::after {
  content: "2018 —";
  position: absolute;
  right: 6%;
  bottom: -12px;
  font-family: var(--ky-font-mono);
  font-size: clamp(72px, 12vw, 150px);
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 255, 255, 0.045);
  pointer-events: none;
  letter-spacing: -0.02em;
}

.page-about__hero .ky-container {
  position: relative;
  z-index: 1;
}

.page-about__hero .ky-breadcrumb {
  margin-bottom: 44px;
}

.page-about__hero-grid {
  display: grid;
  gap: 40px;
  align-items: end;
}

.page-about__hero-copy {
  max-width: 720px;
}

.page-about__hero-rule {
  width: 64px;
  height: 4px;
  margin: 4px 0 24px;
  background: var(--ab-orange);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
}

.page-about__hero h1 {
  font-family: var(--ky-font-head);
  font-size: var(--ky-h1);
  line-height: 1.2;
  margin: 0 0 22px;
  color: var(--ab-white);
}

.page-about__hero-lede {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ab-copy);
  margin: 0;
}

.page-about__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 36px;
  margin-top: 32px;
}

.page-about__hero-stat {
  display: block;
  font-family: var(--ky-font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ab-orange);
}

.page-about__hero-stat-label {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
}

.page-about__hero-index {
  background: var(--ab-card-bg);
  border: 1px solid var(--ab-border);
  padding: 26px 28px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about__hero-index-label {
  display: block;
  font-family: var(--ky-font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 8px;
}

.page-about__hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about__hero-index-list li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.page-about__hero-index-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  color: var(--ab-white);
  text-decoration: none;
  font-size: 16px;
}

.page-about__hero-index-list a span {
  font-family: var(--ky-font-mono);
  font-size: 14px;
  color: var(--ab-orange);
}

.page-about__hero-index-list a:hover,
.page-about__hero-index-list a:focus {
  color: var(--ab-orange);
}

/* ==================== 01 品牌定位 ==================== */
.page-about__position {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(150deg, #3C2A5D 0%, #0B1B3A 100%);
  color: var(--ab-white);
  overflow: hidden;
}

.page-about__position::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.035) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255, 255, 255, 0.035) 25%, transparent 25%);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about__position .ky-container {
  position: relative;
  z-index: 1;
}

.page-about__position-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-about__position .ky-section__num,
.page-about__capability .ky-section__num,
.page-about__honor .ky-section__num {
  color: var(--ab-orange);
}

.page-about__position .ky-section__title,
.page-about__capability .ky-section__title,
.page-about__honor .ky-section__title {
  color: var(--ab-white);
}

.page-about__position .ky-section__body,
.page-about__capability .ky-section__body {
  color: var(--ab-copy);
}

.page-about__position-copy .ky-section__body p + p {
  margin-top: 16px;
}

.page-about__position-media .ky-imgbox {
  border-left: 4px solid var(--ab-orange);
  box-shadow: 0 16px 40px rgba(11, 27, 58, 0.4);
}

.page-about__position-media .ky-imgbox img {
  aspect-ratio: 2 / 1;
  width: 100%;
  height: auto;
}

/* ==================== 02 发展历程 ==================== */
.page-about__timeline-section {
  padding: 80px 0;
  background: var(--ab-light);
  color: var(--ky-text);
}

.page-about__timeline-grid {
  display: grid;
  gap: 40px;
  margin-top: 48px;
}

.page-about__timeline {
  position: relative;
}

.page-about__timeline-line {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 81px;
  width: 2px;
  height: calc(100% - 8px);
  color: var(--ab-orange);
}

.page-about__timeline-item {
  display: grid;
  grid-template-columns: 72px 20px 1fr;
  gap: 0;
  margin-bottom: 28px;
}

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

.page-about__timeline-year {
  text-align: right;
  font-family: var(--ky-font-mono);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ab-orange);
  padding-top: 4px;
}

.page-about__timeline-dot {
  justify-self: center;
  align-self: start;
  width: 14px;
  height: 14px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--ab-orange);
  border: 2px solid var(--ab-light);
  box-shadow: 0 0 0 2px var(--ab-orange);
}

.page-about__timeline-card {
  background: var(--ab-white);
  border-left: 3px solid var(--ab-orange);
  padding: 16px 20px;
  box-shadow: 0 4px 14px rgba(11, 27, 58, 0.06);
}

.page-about__timeline-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ky-text);
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: #3d4456;
}

.page-about__timeline-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about__timeline-aside .ky-imgbox {
  border-left: 4px solid var(--ab-orange);
  box-shadow: 0 8px 24px rgba(11, 27, 58, 0.1);
}

.page-about__timeline-aside .ky-imgbox img {
  aspect-ratio: 3 / 2;
  width: 100%;
  height: auto;
}

.page-about__timeline-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #5a6270;
  border-left: 3px solid var(--ab-orange);
  padding-left: 12px;
}

/* ==================== 03 数据服务能力 ==================== */
.page-about__capability {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, #0E4C5C 0%, #0B1B3A 100%);
  color: var(--ab-white);
  overflow: hidden;
}

.page-about__capability::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--ab-green), transparent);
  opacity: 0.55;
}

.page-about__capability .ky-container {
  position: relative;
  z-index: 1;
}

.page-about__capability-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 48px 0 40px;
}

.page-about__capability-card {
  background: var(--ab-card-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 30px 14px;
  text-align: center;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-about__capability-num {
  display: block;
  font-family: var(--ky-font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ab-orange);
}

.page-about__capability-label {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.75);
}

.page-about__capability-content {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ab-copy);
}

.page-about__capability-content p + p {
  margin-top: 16px;
}

.page-about__capability .ky-btn--ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--ab-white);
}

/* ==================== 04 团队与组织 ==================== */
.page-about__team {
  position: relative;
  padding: 80px 0;
  background: var(--ab-light);
}

.page-about__team::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(11, 27, 58, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 27, 58, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}

.page-about__team .ky-container {
  position: relative;
  z-index: 1;
}

.page-about__team-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-about__team-media {
  order: 2;
}

.page-about__team-content {
  order: 1;
}

.page-about__team-media .ky-imgbox {
  border-left: 4px solid var(--ab-orange);
  box-shadow: 0 8px 24px rgba(11, 27, 58, 0.1);
}

.page-about__team-media .ky-imgbox img {
  aspect-ratio: 4 / 3;
  width: 100%;
  height: auto;
}

.page-about__team-content .ky-section__body p + p {
  margin-top: 16px;
}

/* ==================== 05 资质与荣誉 ==================== */
.page-about__honor {
  padding: 80px 0;
  background: linear-gradient(150deg, #7B2D3B 0%, #3C2A5D 55%, #0B1B3A 100%);
  color: var(--ab-white);
}

.page-about__honor-grid {
  display: grid;
  gap: 20px;
  margin-top: 48px;
}

.page-about__honor-card {
  background: var(--ab-card-bg);
  border: 1px solid var(--ab-border);
  padding: 30px 26px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-about__honor-card:hover,
.page-about__honor-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.55);
}

.page-about__honor-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--ab-orange);
}

.page-about__honor-icon svg {
  width: 100%;
  height: 100%;
}

.page-about__honor-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--ab-white);
}

.page-about__honor-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ab-copy);
}

.page-about__honor-trust {
  margin: 40px 0 0;
  font-size: 14px;
  line-height: 1.7;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 24px;
}

/* ==================== 响应式增强 ==================== */
@media (min-width: 640px) {
  .page-about__hero-grid {
    grid-template-columns: 1.5fr 0.9fr;
    gap: 48px;
  }

  .page-about__capability-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
}

@media (min-width: 768px) {
  .page-about__hero {
    padding: 112px 0 96px;
  }

  .page-about__hero-stat {
    font-size: 32px;
  }

  .page-about__timeline-item {
    grid-template-columns: 120px 28px 1fr;
  }

  .page-about__timeline-line {
    left: 133px;
  }

  .page-about__timeline-card {
    padding: 20px 24px;
  }

  .page-about__timeline-card h3 {
    font-size: 19px;
  }

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

  .page-about__capability-num {
    font-size: 36px;
  }
}

@media (min-width: 1024px) {
  .page-about__position {
    padding: 100px 0;
  }

  .page-about__position-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

  .page-about__timeline-section {
    padding: 100px 0;
  }

  .page-about__timeline-grid {
    grid-template-columns: 1fr 300px;
    gap: 56px;
  }

  .page-about__capability {
    padding: 100px 0;
  }

  .page-about__team {
    padding: 100px 0;
  }

  .page-about__team-grid {
    grid-template-columns: 320px 1fr;
    gap: 56px;
  }

  .page-about__team-media {
    order: 1;
  }

  .page-about__team-content {
    order: 2;
  }

  .page-about__honor {
    padding: 100px 0;
  }
}