.page-about {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
  font-family: var(--font-body);
}

/* 面包屑 */
.page-about .breadcrumbs {
  padding: 28px 0 0;
  margin-bottom: 0;
}
.page-about .breadcrumbs-list {
  margin: 0;
}
.page-about .breadcrumbs-link {
  color: var(--muted);
  text-decoration: none;
}
.page-about .breadcrumbs-link:hover {
  color: var(--orange);
}
.page-about .breadcrumbs-current {
  color: var(--ink);
  font-weight: 600;
}

/* 章节标题 */
.page-about .about-section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.page-about .about-section-index {
  font-family: var(--font-headline);
  font-size: 52px;
  font-weight: 700;
  line-height: 0.9;
  color: var(--orange);
  margin: 0;
  min-width: 64px;
  letter-spacing: -0.02em;
}
.page-about .about-section-head--dark .about-section-index {
  color: var(--gold);
}
.page-about .about-section-head--dark {
  color: var(--white);
}
.page-about .about-section-head--dark .section-eyebrow {
  color: var(--gold);
}
.page-about .about-section-head--dark .section-title {
  color: var(--white);
}
.page-about .about-section-head__content {
  padding-top: 2px;
}

/* ===== 首屏 ===== */
.page-about .about-hero {
  position: relative;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  border-bottom: 3px solid var(--gold);
  padding: 48px 0 56px;
}
.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.13;
  filter: grayscale(0.8) contrast(1.1);
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .about-eyebrow {
  font-family: var(--font-headline);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 16px;
}
.page-about .about-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.12;
  font-weight: 700;
  margin: 0 0 20px;
  color: var(--white);
  letter-spacing: 0.01em;
}
.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 0 28px;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero__timeline-panel {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 20px 20px 8px;
}
.page-about .about-hero__timeline-caption {
  font-family: var(--font-headline);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin: 0 0 18px;
}
.page-about .about-hero__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid rgba(255,255,255,0.16);
}
.page-about .about-hero__timeline-item {
  position: relative;
  padding: 0 0 18px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}
.page-about .about-hero__timeline-item:last-child {
  padding-bottom: 8px;
}
.page-about .about-hero__timeline-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
}
.page-about .about-hero__timeline-item--current::before {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255,106,0,0.22);
}
.page-about .about-hero__timeline-year {
  font-family: var(--font-headline);
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
}
.page-about .about-hero__timeline-event {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
}

/* ===== 01 品牌定位 ===== */
.page-about .about-position {
  padding: 64px 0 56px;
  background: var(--paper);
}
.page-about .about-position__lead {
  font-size: 17px;
  line-height: 1.8;
  margin-top: 0;
  margin-bottom: 32px;
  max-width: 820px;
}
.page-about .about-position__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-about .about-position__card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 24px;
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.page-about .about-position__card:hover {
  box-shadow: 0 12px 32px rgba(10,31,68,0.09);
  border-color: rgba(10,31,68,0.25);
}
.page-about .about-position__card h3 {
  font-family: var(--font-headline);
  font-size: 19px;
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--ink);
}
.page-about .about-position__card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 18px;
}
.page-about .about-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}
.page-about .about-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ===== 02 发展里程碑 ===== */
.page-about .about-milestones {
  background: var(--ink);
  color: var(--white);
  padding: 64px 0;
}
.page-about .about-milestones .section-eyebrow {
  color: rgba(255,215,0,0.85);
}
.page-about .about-milestones .section-title {
  color: var(--white);
}
.page-about .about-milestones__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 28px;
}
.page-about .about-milestones__visual .media-frame {
  border: 1px solid rgba(255,255,255,0.14);
}
.page-about .about-milestones__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid rgba(255,255,255,0.16);
}
.page-about .about-milestones__item {
  position: relative;
  padding-left: 24px;
  padding-bottom: 32px;
}
.page-about .about-milestones__item:last-child {
  padding-bottom: 0;
}
.page-about .about-milestones__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
}
.page-about .about-milestones__item:nth-child(odd)::before {
  background: var(--gold);
}
.page-about .about-milestones__year {
  font-family: var(--font-headline);
  font-size: 26px;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 6px;
}
.page-about .about-milestones__title {
  font-family: var(--font-headline);
  font-size: 17px;
  margin: 0 0 8px;
  color: var(--white);
}
.page-about .about-milestones__desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.68);
  margin: 0;
}

/* ===== 03 数据服务能力 ===== */
.page-about .about-capabilities {
  padding: 64px 0 56px;
  background: var(--paper);
}
.page-about .about-capabilities__kpis {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.page-about .about-capability-card {
  background: var(--ink);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 0;
  padding: 24px;
}
.page-about .about-capability-card .kpi-number {
  font-family: var(--font-headline);
  font-size: 44px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin: 0 0 8px;
}
.page-about .about-capability-card .kpi-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.page-about .about-capability__desc {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255,255,255,0.6);
  margin: 0;
}
.page-about .about-coverage {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 24px;
  margin-bottom: 32px;
}
.page-about .about-coverage__head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 20px;
}
.page-about .about-coverage__head h3 {
  font-family: var(--font-headline);
  font-size: 18px;
  margin: 0 0 6px;
}
.page-about .about-coverage__head p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}
.page-about .about-coverage__rows {
  display: grid;
  gap: 14px;
}
.page-about .about-coverage__row {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.page-about .about-coverage__label {
  color: var(--ink);
  font-weight: 500;
}
.page-about .about-coverage__bar {
  display: block;
  height: 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0;
  overflow: hidden;
}
.page-about .about-coverage__fill {
  display: flex;
  align-items: center;
  padding: 0 10px;
  height: 100%;
  white-space: nowrap;
  font-family: var(--font-data);
  font-size: 11px;
  line-height: 1;
  background: var(--gold);
  color: var(--ink);
}
.page-about .about-coverage__fill--full {
  background: var(--ink);
  color: var(--white);
  width: 100%;
}
.page-about .about-coverage__fill--seasons {
  background: var(--ink);
  color: var(--white);
  width: 100%;
}
.page-about .about-coverage__fill--daily {
  background: var(--gold);
  width: 78%;
}
.page-about .about-coverage__fill--live {
  background: var(--orange);
  color: var(--white);
  width: 64%;
}
.page-about .about-league-tags {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 24px;
}
.page-about .about-league-tags h3 {
  font-family: var(--font-headline);
  font-size: 18px;
  margin: 0 0 14px;
}
.page-about .about-league-tags__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-about .about-league-tags__list li {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink);
}

/* ===== 04 湖南区域服务 ===== */
.page-about .about-local {
  background: var(--paper);
  padding: 64px 0;
}
.page-about .about-local__grid {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
}
.page-about .about-local__media {
  overflow: hidden;
}
.page-about .about-local__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  filter: saturate(0.7);
}
.page-about .about-local__content {
  padding: 24px;
}
.page-about .about-local__lead {
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 22px;
  color: var(--ink);
}
.page-about .about-local__list {
  margin: 0 0 20px;
  padding: 0;
}
.page-about .about-local__list > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.page-about .about-local__list dt {
  color: var(--muted);
  font-weight: 500;
}
.page-about .about-local__list dd {
  margin: 0;
  color: var(--ink);
  text-align: left;
}
.page-about .about-local__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 05 2025版信息架构 ===== */
.page-about .about-architecture {
  background: var(--ink);
  color: var(--white);
  padding: 64px 0;
}
.page-about .about-architecture .section-eyebrow {
  color: var(--gold);
}
.page-about .about-architecture .section-title {
  color: var(--white);
}
.page-about .about-architecture__lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  max-width: 760px;
  margin-bottom: 36px;
}
.page-about .about-architecture__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-architecture__cell {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 22px;
}
.page-about .about-architecture__cell--main {
  background: rgba(255,215,0,0.07);
  border-color: rgba(255,215,0,0.35);
}
.page-about .about-architecture__cell-label {
  font-family: var(--font-headline);
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 8px;
}
.page-about .about-architecture__cell p:last-child {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
  margin: 0;
}
.page-about .about-architecture__footnote {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.14);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.page-about .about-architecture__footnote p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  max-width: 500px;
  margin: 0;
}

/* ===== 版尾路径 ===== */
.page-about .about-path {
  background: var(--gold);
  padding: 28px 0;
}
.page-about .about-path__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.page-about .about-path__label {
  font-family: var(--font-headline);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}
.page-about .about-path__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-path__links .btn {
  border-color: rgba(10,31,68,0.3);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 72px 0 64px;
  }
  .page-about .about-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }
  .page-about .about-hero h1 {
    font-size: clamp(34px, 5vw, 54px);
  }
  .page-about .about-position__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-milestones__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
  }
  .page-about .about-capabilities__kpis {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-coverage__row {
    grid-template-columns: 160px 1fr;
  }
  .page-about .about-local__grid {
    grid-template-columns: 0.95fr 1.05fr;
  }
  .page-about .about-local__content {
    padding: 40px;
  }
  .page-about .about-architecture__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-architecture__cell--main {
    grid-column: span 2;
  }
  .page-about .about-architecture__cell--wide {
    grid-column: span 2;
  }
  .page-about .about-section-head {
    margin-bottom: 32px;
  }
}