/* ============ 品牌故事页专属样式 ============ */
.page-about {
  --about-line: rgba(11, 27, 58, 0.07);
  --about-line-light: rgba(255, 255, 255, 0.06);
  background: var(--moon-white);
  color: var(--ink);
}

/* ---------- 首屏 Hero ---------- */
.page-about .story-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 44px;
  background-color: var(--blue-deep);
  background-image:
    linear-gradient(var(--about-line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line-light) 1px, transparent 1px);
  background-size: 34px 34px;
  border-bottom: 3px solid var(--orange);
}

.page-about .story-hero::before {
  content: "ARCHIVE / 2018-";
  position: absolute;
  right: -10px;
  bottom: 6px;
  font-family: var(--font-mono);
  font-size: clamp(38px, 8vw, 92px);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.05);
  pointer-events: none;
  white-space: nowrap;
}

.page-about .story-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 100%;
  background: linear-gradient(115deg, transparent 0%, transparent 49.6%, rgba(57, 255, 20, 0.08) 50%, transparent 50.4%);
  pointer-events: none;
}

.page-about .story-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .story-hero .breadcrumbs {
  position: relative;
  z-index: 1;
  margin-bottom: 24px;
}

.page-about .story-hero .breadcrumbs a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color var(--transition);
}

.page-about .story-hero .breadcrumbs a:hover {
  color: var(--green);
}

.page-about .story-hero .section-tag {
  color: var(--green);
  border-color: rgba(57, 255, 20, 0.45);
}

.page-about .story-hero h1 {
  margin: 12px 0 10px;
  font-size: clamp(40px, 7vw, 64px);
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--white);
}

.page-about .story-hero__lead {
  margin: 0;
  font-size: clamp(17px, 2.6vw, 24px);
  font-weight: 700;
  font-style: italic;
  color: var(--orange);
}

.page-about .story-hero__desc {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-about .story-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-about .story-hero__meta span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
}

.page-about .story-hero__aside {
  max-width: 340px;
  padding: 22px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  height: fit-content;
}

.page-about .story-hero__aside .data-index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .story-hero__aside p {
  margin: 12px 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
}

.page-about .story-hero__index {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
}

.page-about .story-hero__index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 7px 13px;
  background: rgba(255, 255, 255, 0.04);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.page-about .story-hero__index a:hover {
  color: var(--blue-deep);
  background: var(--green);
  border-color: var(--green);
}

.page-about .story-hero__index-num {
  font-weight: 700;
  color: var(--orange);
}

.page-about .story-hero__index a:hover .story-hero__index-num {
  color: var(--blue-deep);
}

/* ---------- 档案双栏布局 ---------- */
.page-about .story-archive {
  padding: 56px 0 0;
}

.page-about .story-archive__main {
  min-width: 0;
}

.page-about .section-head {
  margin-bottom: 24px;
}

.page-about .section-head h2 {
  margin: 10px 0 10px;
  font-size: clamp(24px, 4vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.page-about .section-head p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #55637e;
}

.page-about .story-archive__main section {
  scroll-margin-top: 24px;
}

.page-about #timeline {
  scroll-margin-top: 24px;
}

/* ---------- 左侧时间轴 ---------- */
.page-about .story-timeline {
  margin-bottom: 56px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-gray);
}

.page-about .timeline-list {
  position: relative;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 14px 30px;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 14px;
  bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--orange) 0 4px, transparent 4px 9px);
  opacity: 0.35;
}

.page-about .timeline-item:last-child::before {
  display: none;
}

.page-about .timeline-item__dot {
  position: absolute;
  left: 2px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue-deep);
  border: 2px solid var(--orange);
}

.page-about .timeline-item__year {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
  border-radius: 999px;
  padding: 4px 10px;
}

.page-about .timeline-item__card {
  margin: 0;
  border: 1px solid var(--line-gray);
  border-left: 3px solid var(--orange);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 2px 12px rgba(11, 27, 58, 0.06);
}

.page-about .timeline-item__card summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .timeline-item__card summary::-webkit-details-marker {
  display: none;
}

.page-about .timeline-item__card summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  color: var(--orange);
}

.page-about .timeline-item__card[open] summary::after {
  content: "−";
}

.page-about .timeline-item__card > div {
  padding: 0 14px 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #44506a;
  border-top: 1px dashed var(--line-gray);
}

.page-about .timeline-item__card > div p {
  margin: 12px 0 0;
}

.page-about .timeline-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.page-about .timeline-item__tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue-secondary);
  background: rgba(30, 58, 110, 0.08);
  border-radius: 999px;
  padding: 3px 9px;
}

.page-about .timeline-note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #7b879d;
}

.page-about .timeline-trust {
  margin: 20px 0 0;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--blue-secondary);
  background: rgba(30, 58, 110, 0.07);
  border-left: 3px solid var(--green);
  border-radius: 0 10px 10px 0;
}

/* ---------- 数据体系概览（深色档案卡） ---------- */
.page-about .story-data {
  position: relative;
  overflow: hidden;
  margin-bottom: 48px;
  padding: 28px 22px;
  border-radius: 18px;
  background-color: var(--blue-deep);
  background-image:
    linear-gradient(var(--about-line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-line-light) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--white);
}

.page-about .story-data::before {
  content: "DATA / 22LEAGUES";
  position: absolute;
  right: -6px;
  bottom: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 6vw, 72px);
  letter-spacing: -0.03em;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  white-space: nowrap;
}

.page-about .story-data .section-tag {
  color: var(--green);
  border-color: rgba(57, 255, 20, 0.45);
}

.page-about .story-data .section-head p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.page-about .story-data__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.page-about .mini-stat {
  padding: 16px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.page-about .mini-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(23px, 4vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-about .mini-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .chart-block__figure {
  position: relative;
  z-index: 1;
  margin: 0;
}

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

.page-about .growth-chart text {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: rgba(255, 255, 255, 0.66);
}

.page-about .growth-chart .chart-label-end {
  fill: var(--green);
  font-weight: 700;
}

.page-about .growth-chart .chart-label-anno {
  font-size: 10.5px;
}

@keyframes about-pulse-green {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.page-about .chart-point--end {
  animation: about-pulse-green 2.4s ease-in-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}

.page-about .chart-block__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-align: right;
  color: rgba(255, 255, 255, 0.5);
}

.page-about .story-data__body {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-about .story-data__body img,
.page-about .story-cert__figure img,
.page-about .story-local__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.page-about .story-data__copy h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.4;
}

.page-about .story-data__copy p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- 资质与认证（浅色区） ---------- */
.page-about .story-cert {
  margin-bottom: 48px;
  padding: 32px 0 8px;
}

.page-about .story-cert__grid {
  display: grid;
  gap: 22px;
}

.page-about .cert-list {
  display: grid;
  gap: 12px;
}

.page-about .cert-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border-radius: 12px;
  background: var(--white);
  border: 1px solid var(--line-gray);
  box-shadow: 0 2px 10px rgba(11, 27, 58, 0.05);
}

.page-about .cert-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  color: var(--blue-secondary);
  background: rgba(30, 58, 110, 0.08);
  border: 1px solid rgba(30, 58, 110, 0.14);
}

.page-about .cert-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.4;
}

.page-about .cert-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: #55637e;
}

.page-about .story-cert__figure,
.page-about .story-local__figure {
  margin: 0;
}

.page-about .story-cert__figure figcaption,
.page-about .story-local__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-align: center;
  color: #7b879d;
}

/* ---------- 河南本地化服务（深色档案卡） ---------- */
.page-about .story-local {
  position: relative;
  overflow: hidden;
  margin-bottom: 56px;
  padding: 28px 22px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--blue-deep) 0%, #14284f 100%);
  color: var(--white);
}

.page-about .story-local::before {
  content: "HENAN / CN";
  position: absolute;
  left: -4px;
  bottom: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 66px);
  letter-spacing: -0.03em;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  white-space: nowrap;
}

.page-about .story-local .section-tag {
  color: var(--green);
  border-color: rgba(57, 255, 20, 0.45);
}

.page-about .story-local .section-head h2 {
  color: var(--white);
}

.page-about .story-local .section-head p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.page-about .story-local__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

.page-about .story-local .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-about .story-local .filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.page-about .story-local .filter-btn.is-active {
  color: var(--blue-deep);
  background: var(--green);
  border-color: var(--green);
  font-weight: 700;
}

.page-about .local-grid {
  display: grid;
  gap: 12px;
}

.page-about .local-card {
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: background var(--transition), border-color var(--transition);
}

.page-about .local-card[hidden] {
  display: none;
}

.page-about .local-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(57, 255, 20, 0.35);
}

.page-about .local-card .data-index {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--green);
}

.page-about .local-card h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.page-about .local-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
}

/* ---------- 继续查阅 ---------- */
.page-about .story-more {
  padding: 0 0 72px;
}

.page-about .more-grid {
  display: grid;
  gap: 14px;
}

.page-about .more-card {
  display: block;
  padding: 20px;
  border-radius: 12px;
  background: var(--white);
  border: 1px solid var(--line-gray);
  border-left: 3px solid var(--orange);
  box-shadow: 0 2px 10px rgba(11, 27, 58, 0.05);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-left-color var(--transition);
}

.page-about .more-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(11, 27, 58, 0.12);
  border-left-color: var(--green);
}

.page-about .more-card .data-index {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .more-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.page-about .more-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: #55637e;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-about .story-hero {
    padding: 72px 0 64px;
  }

  .page-about .story-hero__grid {
    grid-template-columns: 1fr 300px;
    align-items: end;
  }

  .page-about .story-data__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .story-data__body {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

  .page-about .story-cert__grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: center;
  }

  .page-about .story-local__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

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

/* ---------- 桌面端档案页双栏 ---------- */
@media (min-width: 1024px) {
  .page-about .story-archive {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .story-timeline {
    position: sticky;
    top: 84px;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }
}