.page-about {
  background: linear-gradient(180deg, #0B1B3B 0%, #13264D 18%, #0B1B3B 46%, #1E2A3A 100%);
  color: #FFFFFF;
  min-height: 100vh;
  overflow-x: clip;
}
.story-layout {
  position: relative;
}
.story-index {
  position: sticky;
  top: 96px;
  z-index: 40;
  background: rgba(11, 27, 59, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.story-index-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 10px 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.story-index-inner::-webkit-scrollbar {
  display: none;
}
.story-index .index-label {
  display: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  margin: 0;
}
.story-focus {
  display: none;
}
.story-chapters {
  display: flex;
  gap: 6px;
  white-space: nowrap;
}
.story-chapter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.07);
  color: #B8C0D0;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.story-chapter:hover {
  background: rgba(255, 107, 53, 0.24);
  color: #FFFFFF;
  transform: translateY(-1px);
}
.story-chapter-no {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
}
.story-chapter-meta {
  display: none;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--muted);
}
.story-trust {
  display: none;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}
.story-hero {
  position: relative;
  padding: 64px 20px 44px;
  background:
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0 2px, transparent 2px 12px),
    radial-gradient(circle at 78% 12%, rgba(76, 201, 240, 0.14) 0, transparent 34%);
  scroll-margin-top: 110px;
  max-width: 860px;
}
.story-hero .breadcrumb {
  margin-bottom: 22px;
  font-size: 13px;
}
.story-hero .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}
.story-hero .breadcrumb a:hover {
  text-decoration: underline;
}
.story-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 6px 14px;
  border: 1px solid rgba(255, 107, 53, 0.5);
  border-radius: var(--radius-pill);
  color: var(--orange);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.story-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--orange);
  display: inline-block;
  clip-path: polygon(0 0, 100% 0, 100% 60%, 60% 100%, 0 100%);
}
.story-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  max-width: 760px;
}
.story-lede {
  max-width: 640px;
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}
.story-related {
  margin-top: 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.story-related a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(76, 201, 240, 0.4);
  padding-bottom: 1px;
}
.story-related a:hover {
  color: #FFFFFF;
  border-bottom-color: #FFFFFF;
}
.story-section {
  padding: 64px 20px;
  scroll-margin-top: 110px;
}
.story-section + .story-section {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}
.story-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 18px;
  padding-left: 16px;
  border-left: 4px solid var(--orange);
}
.story-section-head .index-label {
  color: var(--cyan);
  font-size: 13px;
}
.story-section-head h2 {
  width: 100%;
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}
.story-section-years {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--yellow);
  border: 1px solid rgba(255, 209, 102, 0.35);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}
.story-section-desc {
  margin: 0 0 28px;
  max-width: 640px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.74);
}
.story-figure {
  margin: 0 0 28px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.story-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.story-figure-archive img {
  aspect-ratio: 2 / 1;
}
.story-figure-pitch img {
  aspect-ratio: 7 / 5;
}
.story-figure-sketch img {
  aspect-ratio: 1 / 1;
}
.story-figure-sketch {
  max-width: 360px;
  margin: 0 auto 26px;
}
.story-timeline,
.story-metrics,
.story-editions {
  max-width: 960px;
}
.story-principles,
.story-future-list {
  max-width: 760px;
}
.story-timeline {
  position: relative;
  margin-top: 34px;
  padding-left: 24px;
}
.story-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange) 0%, var(--cyan) 42%, var(--yellow) 100%);
  opacity: 0.85;
}
.story-milestone {
  position: relative;
  margin-bottom: 22px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.2s, border-color 0.2s;
}
.story-milestone[open] {
  background: rgba(255, 255, 255, 0.07);
}
.story-milestone::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 20px;
  width: 15px;
  height: 15px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 70% 100%, 0 100%);
  transform: rotate(-3deg);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.15);
}
.story-milestone summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  cursor: pointer;
  list-style: none;
  padding: 18px 20px 14px;
}
.story-milestone summary::-webkit-details-marker {
  display: none;
}
.milestone-year {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--yellow);
  letter-spacing: 0.03em;
}
.milestone-title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: #FFFFFF;
}
.milestone-toggle {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--cyan);
}
.story-milestone:not([open]) .milestone-toggle::before {
  content: "+ 展开";
}
.story-milestone[open] .milestone-toggle::before {
  content: "− 收起";
}
.milestone-desc {
  margin: 0;
  padding: 0 20px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.76);
}
.story-section-metrics {
  background: rgba(11, 27, 59, 0.4);
}
.story-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.story-metric {
  position: relative;
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
}
.story-metric .data-number {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1;
  color: var(--orange);
  margin-bottom: 8px;
}
.story-metric .data-meta {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.story-metric p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
}
.story-section-principles {
  background: var(--white);
  color: var(--ink);
}
.story-section-principles .story-section-head {
  border-left-color: var(--orange);
}
.story-section-principles .story-section-head .index-label {
  color: var(--orange);
}
.story-section-principles .story-section-desc {
  color: var(--muted);
}
.story-section-principles .story-section-years {
  color: var(--orange);
  border-color: rgba(255, 107, 53, 0.4);
}
.story-principles {
  display: grid;
  gap: 16px;
}
.story-principle {
  position: relative;
  padding: 26px 22px 22px;
  background: var(--gray);
  border-radius: var(--radius);
  border-top: 4px solid var(--orange);
}
.story-principle-no {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--orange);
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}
.story-principle h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
}
.story-principle p {
  margin: 0;
  line-height: 1.72;
  color: var(--ink);
}
.story-section-editions {
  background: linear-gradient(180deg, #0B1B3B, #13264D);
}
.story-editions {
  display: grid;
  gap: 16px;
}
.story-edition {
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}
.story-edition-advanced {
  border-color: rgba(255, 107, 53, 0.55);
  background: rgba(255, 107, 53, 0.08);
}
.story-edition-tag {
  align-self: flex-start;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 209, 102, 0.14);
  color: var(--yellow);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.story-edition h3 {
  margin: 0 0 4px;
  font-size: 24px;
  font-family: var(--font-display);
}
.story-edition-lede {
  margin: 0 0 14px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.6;
}
.story-edition-list {
  margin: 0 0 16px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
}
.story-edition-note {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: var(--cyan);
}
.story-section-future {
  background: var(--gray);
  color: var(--ink);
}
.story-section-future .story-section-head .index-label {
  color: var(--orange);
}
.story-section-future .story-section-desc {
  color: var(--muted);
}
.story-section-future .story-section-years {
  color: var(--orange);
  border-color: rgba(255, 107, 53, 0.4);
}
.story-section-future .story-figure {
  background: var(--white);
  border-color: rgba(11, 27, 59, 0.08);
}
.story-future-list {
  display: grid;
  gap: 16px;
}
.story-future-item {
  padding: 22px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.story-future-no {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--cyan);
}
.story-future-item h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 21px;
}
.story-future-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}
.story-content {
  padding-bottom: 64px;
}
.story-next-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 56px auto 0;
  max-width: 860px;
  width: calc(100% - 40px);
  padding: 24px 26px;
  background: linear-gradient(135deg, var(--orange), #FF8A5C);
  border-radius: var(--radius-lg);
  text-decoration: none;
  box-shadow: 0 12px 36px rgba(255, 107, 53, 0.24);
  transition: transform 0.24s var(--ease-out), box-shadow 0.24s var(--ease-out);
}
.story-next-link:hover,
.story-next-link:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(255, 107, 53, 0.32);
}
.story-next-kicker {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.story-next-title {
  display: block;
  margin-top: 5px;
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
}
.story-next-arrow {
  font-size: 34px;
  color: #FFFFFF;
  line-height: 1;
}
@media (min-width: 720px) {
  .story-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .story-editions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .story-principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .story-future-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (min-width: 960px) {
  .story-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    max-width: 1320px;
    margin: 0 auto;
    column-gap: 48px;
  }
  .story-index {
    position: sticky;
    top: 96px;
    height: calc(100vh - 120px);
    display: flex;
    align-items: flex-start;
    background: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-bottom: none;
  }
  .story-index-inner {
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    align-self: stretch;
    width: 100%;
    padding: 28px 8px 28px 0;
    overflow: visible;
  }
  .story-index .index-label {
    display: block;
    margin-bottom: 18px;
  }
  .story-focus {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 26px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-left: 3px solid var(--orange);
    border-radius: 0 14px 14px 0;
  }
  .story-focus-kicker {
    font-family: var(--font-data);
    font-size: 12px;
    color: var(--yellow);
    letter-spacing: 0.1em;
  }
  .story-focus-title {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 800;
    line-height: 1.4;
  }
  .story-chapters {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 8px;
  }
  .story-chapter {
    justify-content: space-between;
    padding: 14px 16px;
    border-radius: 14px;
    font-size: 15px;
  }
  .story-chapter-meta {
    display: inline-block;
  }
  .story-trust {
    display: block;
  }
  .story-hero {
    padding: 88px 48px 56px 0;
  }
  .story-section {
    padding: 72px 48px 72px 0;
  }
  .story-section-desc {
    font-size: 16px;
  }
  .story-metrics {
    gap: 16px;
  }
  .story-metric {
    padding: 24px 20px;
  }
  .story-metric p {
    font-size: 14px;
  }
  .story-principles {
    gap: 20px;
  }
  .story-editions {
    gap: 20px;
  }
  .story-future-list {
    gap: 20px;
  }
}
@media (min-width: 1280px) {
  .story-layout {
    column-gap: 64px;
  }
  .story-hero {
    padding-left: 16px;
  }
  .story-section {
    padding-right: 16px;
  }
}