.page-about {
  --about-blue-deep: #0A1F44;
  --about-blue-mid: #1E3A5F;
  --about-gold-rgb: 255, 215, 0;
  --about-orange-rgb: 255, 107, 53;
  --about-timeline-line: linear-gradient(180deg, rgba(var(--about-gold-rgb), 0.9) 0%, rgba(var(--about-orange-rgb), 0.7) 100%);
  overflow: hidden;
}

/* ===== 面包屑 ===== */
.page-about .about-breadcrumb {
  background: var(--about-blue-deep);
  padding-top: calc(76px + 28px);
  padding-bottom: 8px;
}

.page-about .about-breadcrumb .breadcrumb__list {
  margin: 0;
}

.page-about .about-breadcrumb .breadcrumb__link,
.page-about .about-breadcrumb .breadcrumb__item {
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--f-mono);
  font-size: var(--fs-caption);
  letter-spacing: 0.08em;
}

.page-about .about-breadcrumb .breadcrumb__link:hover {
  color: #FFD700;
}

.page-about .about-breadcrumb .breadcrumb__sep {
  color: rgba(255, 255, 255, 0.35);
}

/* ===== 首屏 Hero ===== */
.page-about .about-hero {
  background:
    radial-gradient(ellipse at 85% 15%, rgba(var(--about-gold-rgb), 0.14) 0%, transparent 52%),
    radial-gradient(ellipse at 8% 85%, rgba(var(--about-orange-rgb), 0.1) 0%, transparent 45%),
    linear-gradient(135deg, #0A1F44 0%, #1E3A5F 70%, #0A1F44 100%);
  padding: 56px 0 72px;
  position: relative;
}

.page-about .about-hero::before {
  content: '';
  position: absolute;
  right: -90px;
  top: -90px;
  width: 260px;
  height: 260px;
  border: 2px solid rgba(var(--about-gold-rgb), 0.18);
  border-radius: 50%;
}

.page-about .about-hero::after {
  content: '';
  position: absolute;
  left: -50px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(var(--about-orange-rgb), 0.22);
  border-radius: 50%;
}

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

.page-about .about-hero__kicker {
  display: inline-block;
  color: #FFD700;
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 0.18em;
  margin-bottom: 20px;
  padding: 8px 18px;
  border: 1px solid rgba(var(--about-gold-rgb), 0.35);
  border-radius: var(--r-pill);
  background: rgba(var(--about-gold-rgb), 0.06);
}

.page-about .about-hero__title {
  color: #FFFFFF;
  line-height: 1.05;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.page-about .about-hero__title span {
  display: block;
  color: #FFD700;
  font-size: 0.46em;
  letter-spacing: 0.14em;
  margin-top: 14px;
}

.page-about .about-hero__lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  line-height: 1.85;
  max-width: 700px;
  margin-bottom: 44px;
}

/* 目录导航 */
.page-about .about-hero__toc {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 48px;
  max-width: 720px;
}

.page-about .about-hero__toc-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--r-md);
  padding: 14px 16px;
  color: #FFFFFF;
  text-decoration: none;
  font-family: var(--f-body);
  font-size: 15px;
  transition: background var(--t-med), border-color var(--t-med), transform var(--t-med);
}

.page-about .about-hero__toc-link:hover {
  background: rgba(var(--about-gold-rgb), 0.1);
  border-color: rgba(var(--about-gold-rgb), 0.5);
  transform: translateY(-2px);
}

.page-about .about-hero__toc-num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: #FFD700;
  letter-spacing: 0.1em;
  min-width: 24px;
}

/* 首屏仪表盘数据 */
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-about .about-hero__stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(var(--about-gold-rgb), 0.22);
  border-radius: var(--r-md);
  padding: 18px 14px;
  backdrop-filter: blur(4px);
}

.page-about .about-hero__stat .data-label {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-about .about-hero__stat .data-value {
  display: block;
  color: #FFD700;
  font-family: var(--f-heading);
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-about .about-hero__stat .data-caption {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  margin-top: 8px;
  line-height: 1.5;
}

/* ===== 品牌立场 ===== */
.page-about .about-stance {
  background: #F5F0E6;
  padding: 72px 0 64px;
  position: relative;
}

.page-about .about-stance__grid {
  display: grid;
  gap: 48px;
}

.page-about .about-stance__content .chapter-num {
  margin-bottom: 8px;
}

.page-about .about-stance__content .heading--h1 {
  color: #0A1F44;
  margin-bottom: 16px;
}

.page-about .about-stance__lead {
  color: rgba(10, 31, 68, 0.78);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 32px;
}

.page-about .about-stance__points {
  display: grid;
  gap: 20px;
}

.page-about .about-stance__point {
  position: relative;
  background: #FFFFFF;
  border-radius: var(--r-md);
  padding: 22px 20px 20px 56px;
  box-shadow: var(--sh-card);
  transition: transform var(--t-med), box-shadow var(--t-med);
}

.page-about .about-stance__point:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-hover);
}

.page-about .about-stance__num {
  position: absolute;
  left: 16px;
  top: 20px;
  font-family: var(--f-mono);
  font-size: 14px;
  font-weight: 700;
  color: #FF6B35;
}

.page-about .about-stance__point .heading--h3 {
  color: #0A1F44;
  margin-bottom: 8px;
}

.page-about .about-stance__point p {
  color: rgba(10, 31, 68, 0.72);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-stance__media {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-stance__frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-card);
}

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

.page-about .about-stance__badges {
  display: flex;
  gap: 12px;
}

/* ===== 斜切色带 ===== */
.page-about .about-slant {
  height: 52px;
  background: linear-gradient(to right, #FFD700 0%, #FF6B35 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 55%);
}

.page-about .about-slant--reverse {
  clip-path: polygon(0 45%, 100% 0, 100% 100%, 0 100%);
}

/* ===== 发展轨迹 ===== */
.page-about .about-timeline {
  background:
    radial-gradient(ellipse at 90% 80%, rgba(var(--about-gold-rgb), 0.08) 0%, transparent 50%),
    linear-gradient(160deg, #0A1F44 0%, #1E3A5F 100%);
  padding: 72px 0 72px;
}

.page-about .about-timeline__head {
  margin-bottom: 48px;
}

.page-about .about-timeline__head .chapter-num {
  margin-bottom: 8px;
}

.page-about .about-timeline__head .heading--h1 {
  color: #FFFFFF;
  margin-bottom: 14px;
}

.page-about .about-timeline__intro {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.8;
  max-width: 680px;
}

.page-about .about-timeline__list {
  position: relative;
  padding-left: 0;
  margin: 0 0 48px;
  list-style: none;
}

.page-about .about-timeline__list::before {
  content: '';
  position: absolute;
  left: 18px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--about-timeline-line);
  opacity: 0.5;
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 56px;
  margin-bottom: 28px;
}

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

.page-about .about-timeline__item::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #FFD700;
  box-shadow: 0 0 0 4px rgba(var(--about-gold-rgb), 0.2), 0 0 20px rgba(var(--about-gold-rgb), 0.45);
  z-index: 1;
}

.page-about .about-timeline__item--now::before {
  background: #FF6B35;
  box-shadow: 0 0 0 4px rgba(var(--about-orange-rgb), 0.22), 0 0 24px rgba(var(--about-orange-rgb), 0.5);
}

.page-about .about-timeline__phase {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #FFD700;
  padding: 4px 14px;
  border: 1px solid rgba(var(--about-gold-rgb), 0.45);
  border-radius: var(--r-pill);
  margin-bottom: 12px;
  background: rgba(var(--about-gold-rgb), 0.06);
}

.page-about .about-timeline__item--now .about-timeline__phase {
  color: #FF6B35;
  border-color: rgba(var(--about-orange-rgb), 0.55);
  background: rgba(var(--about-orange-rgb), 0.08);
}

.page-about .about-timeline__item .heading--h3 {
  color: #FFFFFF;
  margin-bottom: 8px;
}

.page-about .about-timeline__item p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
  max-width: 720px;
}

.page-about .about-timeline__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-card);
}

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

/* ===== 数据服务能力 ===== */
.page-about .about-capability {
  background: #F5F0E6;
  padding: 72px 0 72px;
}

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

.page-about .about-capability__head .chapter-num {
  margin-bottom: 8px;
}

.page-about .about-capability__head .heading--h1 {
  color: #0A1F44;
  margin-bottom: 14px;
}

.page-about .about-capability__intro {
  color: rgba(10, 31, 68, 0.75);
  font-size: 16px;
  line-height: 1.8;
  max-width: 680px;
}

.page-about .about-capability__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.page-about .about-capability__card {
  background: #0A1F44;
  border-radius: var(--r-lg);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform var(--t-med), box-shadow var(--t-med);
}

.page-about .about-capability__card:hover {
  transform: translateY(-5px);
  box-shadow: var(--sh-hover);
}

.page-about .about-capability__card .data-label {
  color: #FFD700;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .about-capability__card .data-value {
  color: #FFFFFF;
  font-family: var(--f-heading);
  font-size: 34px;
  line-height: 1.15;
}

.page-about .about-capability__desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  line-height: 1.6;
}

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

.page-about .about-capability__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--sh-card);
}

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

.page-about .about-capability__content .heading--h2 {
  color: #0A1F44;
  margin-bottom: 20px;
}

.page-about .about-capability__list {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-about .about-capability__list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: rgba(10, 31, 68, 0.8);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .about-capability__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 8px;
  background: #FFD700;
  border-radius: var(--r-pill);
}

.page-about .about-capability__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== 服务覆盖 ===== */
.page-about .about-coverage {
  background:
    radial-gradient(ellipse at 10% 20%, rgba(var(--about-orange-rgb), 0.12) 0%, transparent 50%),
    linear-gradient(160deg, #0A1F44 0%, #0D0D0D 100%);
  padding: 72px 0 72px;
}

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

.page-about .about-coverage__head .chapter-num {
  margin-bottom: 8px;
}

.page-about .about-coverage__head .heading--h1 {
  color: #FFFFFF;
  margin-bottom: 14px;
}

.page-about .about-coverage__intro {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.8;
  max-width: 680px;
}

.page-about .about-coverage__leagues {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 48px;
}

.page-about .about-coverage__league {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(var(--about-gold-rgb), 0.3);
  border-radius: var(--r-pill);
  color: #FFFFFF;
  font-family: var(--f-heading);
  font-size: 17px;
  padding: 14px 16px;
  text-align: center;
  transition: transform var(--t-med), background var(--t-med), border-color var(--t-med), box-shadow var(--t-med);
}

.page-about .about-coverage__league:hover {
  transform: translateY(-3px) rotate(-1deg);
  background: rgba(var(--about-gold-rgb), 0.14);
  border-color: rgba(var(--about-gold-rgb), 0.6);
  box-shadow: var(--sh-hover);
}

.page-about .about-coverage__grid {
  display: grid;
  gap: 16px;
  margin-bottom: 40px;
}

.page-about .about-coverage__stat {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-lg);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-coverage__stat .data-value {
  color: #FFD700;
  font-family: var(--f-heading);
  font-size: 30px;
  line-height: 1.2;
}

.page-about .about-coverage__stat .data-label {
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-coverage__stat p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  line-height: 1.6;
  margin: 4px 0 0;
}

.page-about .about-coverage__note {
  border-left: 3px solid #FFD700;
  padding: 8px 0 8px 20px;
}

.page-about .about-coverage__note p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

/* ===== CTA 区块 ===== */
.page-about .about-cta {
  background: linear-gradient(120deg, #FFD700 0%, #FF6B35 100%);
  padding: 64px 0;
}

.page-about .about-cta__inner {
  text-align: center;
}

.page-about .about-cta .heading--h2 {
  color: #0A1F44;
  margin-bottom: 12px;
}

.page-about .about-cta__inner > p {
  color: rgba(10, 31, 68, 0.78);
  font-size: 16px;
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto 28px;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.page-about .about-cta .btn--primary {
  background: #0A1F44;
  color: #FFD700;
  border-color: #0A1F44;
}

.page-about .about-cta .btn--primary:hover {
  background: #1E3A5F;
  color: #FFFFFF;
}

.page-about .about-cta .btn--ghost {
  border-color: #0A1F44;
  color: #0A1F44;
}

.page-about .about-cta .btn--ghost:hover {
  background: #0A1F44;
  color: #FFD700;
}

/* ===== 平板适配 ===== */
@media (min-width: 640px) {
  .page-about .about-hero__toc {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }

  .page-about .about-hero__toc-link {
    padding: 16px 14px;
    font-size: 14px;
    flex-direction: column;
    align-items: flex-start;
  }

  .page-about .about-hero__stats {
    gap: 16px;
  }

  .page-about .about-hero__stat {
    padding: 22px 20px;
  }

  .page-about .about-hero__stat .data-value {
    font-size: 36px;
  }

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

  .page-about .about-capability__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-about .about-coverage__leagues {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

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

/* ===== 桌面适配 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 72px 0 96px;
  }

  .page-about .about-hero__kicker {
    font-size: 15px;
    margin-bottom: 28px;
  }

  .page-about .about-hero__lead {
    font-size: 19px;
    margin-bottom: 52px;
  }

  .page-about .about-hero__toc {
    margin-bottom: 56px;
  }

  .page-about .about-hero__toc-link {
    font-size: 15px;
  }

  .page-about .about-hero__stat .data-label {
    font-size: 12px;
  }

  .page-about .about-hero__stat .data-value {
    font-size: 42px;
  }

  .page-about .about-stance {
    padding: 96px 0 88px;
  }

  .page-about .about-stance__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 72px;
    align-items: center;
  }

  .page-about .about-stance__points {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-about .about-timeline {
    padding: 96px 0 88px;
  }

  .page-about .about-timeline__list {
    max-width: 820px;
  }

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

  .page-about .about-timeline__media {
    max-width: 1000px;
    margin: 0 auto;
  }

  .page-about .about-capability {
    padding: 96px 0 88px;
  }

  .page-about .about-capability__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .about-capability__card .data-value {
    font-size: 40px;
  }

  .page-about .about-coverage {
    padding: 96px 0 88px;
  }

  .page-about .about-coverage__leagues {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .page-about .about-coverage__stat {
    padding: 28px 24px;
  }

  .page-about .about-coverage__stat .data-value {
    font-size: 36px;
  }

  .page-about .about-cta {
    padding: 72px 0;
  }
}