/* ===== 品牌概况页专属样式 ===== */
.page-about {
  background-color: var(--charcoal);
  background-image:
    linear-gradient(rgba(109, 190, 69, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(109, 190, 69, 0.04) 1px, transparent 1px),
    radial-gradient(circle at 92% 8%, rgba(168, 255, 52, 0.08), transparent 260px),
    radial-gradient(circle at 5% 55%, rgba(61, 90, 128, 0.12), transparent 320px);
  background-size: 28px 28px, 28px 28px, 100% 100%, 100% 100%;
  color: var(--text);
  overflow-x: hidden;
  padding-bottom: 72px;
}

.page-about .breadcrumb {
  padding: 28px 24px 0;
  max-width: var(--content-width);
  margin: 0 auto;
}

/* ===== Hero ===== */
.page-about .about-hero {
  padding: 36px 24px 40px;
  max-width: var(--content-width);
  margin: 0 auto;
}

.page-about .about-hero-kicker {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-hero-kicker::after {
  content: "";
  width: 46px;
  height: 1px;
  background: var(--line-strong);
}

.page-about .about-hero-title {
  font-family: var(--font-title);
  font-size: clamp(38px, 8vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  transform: skewX(-2deg);
  color: var(--text-strong);
  margin: 0 0 16px;
  letter-spacing: 0.03em;
}

.page-about .about-hero-lead {
  font-size: 17px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 520px;
  margin: 0 0 24px;
}

.page-about .about-hero-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== Section base ===== */
.page-about .about-section {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 56px 24px;
}

.page-about .about-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-about .about-section-head::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 96px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--kiwi));
}

.page-about .about-section-serial {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 500;
  color: var(--gold);
  border: 1px solid rgba(255, 193, 7, 0.4);
  border-radius: 999px;
  padding: 3px 11px;
  letter-spacing: 0.06em;
}

.page-about .about-section-head h2 {
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 700;
  transform: skewX(-2deg);
  color: var(--text-strong);
  margin: 0;
  letter-spacing: 0.02em;
}

.page-about .about-section-head p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  width: 100%;
}

/* ===== Story ===== */
.page-about .about-story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .about-story-copy .lead {
  font-size: 19px;
  line-height: 1.75;
  color: var(--text-strong);
  font-weight: 600;
  margin: 0 0 16px;
}

.page-about .about-story-copy > p:not(.lead) {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 16px;
}

.page-about .about-quote {
  margin: 24px 0;
  padding: 14px 20px;
  border-left: 3px solid var(--gold);
  background: rgba(255, 193, 7, 0.07);
  border-radius: 0 12px 12px 0;
  font-family: var(--font-title);
  font-size: 15px;
  color: var(--text-strong);
  letter-spacing: 0.02em;
}

.page-about .about-principles {
  list-style: none;
  margin: 28px 0;
  padding: 6px 0;
  border-left: 3px solid var(--kiwi);
  border-radius: 0 12px 12px 0;
  background: rgba(109, 190, 69, 0.06);
}

.page-about .about-principles li {
  padding: 12px 18px;
}

.page-about .about-principle-name {
  display: block;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  color: var(--neon);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}

.page-about .about-principles p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.page-about .about-story-link {
  margin-top: 8px;
}

.page-about .about-story-figure {
  margin: 0;
}

.page-about .about-story-img,
.page-about .about-milestones-img,
.page-about .about-cert-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-about .about-story-figure .media-frame-caption,
.page-about .about-milestones-figure .media-frame-caption,
.page-about .about-cert-figure .media-frame-caption {
  font-size: 13px;
  color: var(--dim);
  margin-top: 10px;
  text-align: right;
}

/* ===== Milestones ===== */
.page-about .about-section.about-milestones,
.page-about .about-section.about-certs {
  max-width: none;
  margin: 0;
  padding: 0;
}

.page-about .about-milestones {
  background:
    linear-gradient(180deg, rgba(21, 34, 26, 0.92), rgba(34, 50, 40, 0.72)),
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(109, 190, 69, 0.07) 23px 24px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-milestones-inner,
.page-about .about-certs-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 52px 24px;
}

.page-about .about-milestones-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), var(--kiwi) 55%, var(--neon));
  opacity: 0.5;
  border-radius: 1px;
}

.page-about .about-timeline-item {
  position: relative;
  padding: 0 0 22px 48px;
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 22px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255, 210, 63, 0.18), 0 0 12px rgba(255, 210, 63, 0.55);
}

.page-about .about-timeline-details {
  border-radius: 12px;
  transition: background 0.25s var(--ease);
}

.page-about .about-timeline-details[open] {
  background: rgba(109, 190, 69, 0.06);
  padding-bottom: 12px;
}

.page-about .about-timeline-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 12px;
  transition: border-color 0.25s var(--ease);
}

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

.page-about .about-timeline-summary:hover {
  border-color: var(--line);
  background: rgba(109, 190, 69, 0.04);
}

.page-about .about-timeline-year {
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 500;
  color: var(--gold);
  background: rgba(255, 193, 7, 0.12);
  border-radius: 999px;
  padding: 3px 10px;
  line-height: 1.4;
}

.page-about .about-timeline-heading {
  font-family: var(--font-title);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: 0.02em;
}

.page-about .about-timeline-details[open] .about-timeline-heading {
  color: var(--neon);
}

.page-about .about-timeline-details p {
  margin: 0;
  padding: 0 14px 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-milestones-figure {
  margin: 0;
}

/* ===== Data ===== */
.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.page-about .about-data-cell {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 14px;
  text-align: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
}

.page-about .about-data-num {
  display: block;
  font-family: var(--font-data);
  font-size: 34px;
  font-weight: 500;
  line-height: 1.2;
  color: var(--neon);
  word-break: keep-all;
}

.page-about .about-data-suffix {
  font-size: 17px;
  color: var(--kiwi);
  font-weight: 500;
  margin-left: 2px;
}

.page-about .about-data-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .about-charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.page-about .about-chart-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 18px;
}

.page-about .about-chart-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-strong);
}

.page-about .about-chart-title svg {
  color: var(--kiwi);
}

.page-about .about-bar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-bar-item {
  display: grid;
  grid-template-columns: 70px 1fr 34px;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .about-bar-name {
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
}

.page-about .about-bar-track {
  display: block;
  height: 12px;
  border-radius: 999px;
  background: rgba(109, 190, 69, 0.12);
  overflow: hidden;
}

.page-about .about-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--deep), var(--kiwi));
}

.page-about .about-bar-12 { width: 100%; }
.page-about .about-bar-9 { width: 75%; }
.page-about .about-bar-8 { width: 66.67%; }
.page-about .about-bar-7 { width: 58.33%; }
.page-about .about-bar-6 { width: 50%; }
.page-about .about-bar-5 { width: 41.67%; }
.page-about .about-bar-4 { width: 33.33%; }

.page-about .about-bar-value {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--gold);
  text-align: right;
}

.page-about .about-trend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 180px;
}

.page-about .about-trend-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  min-width: 0;
}

.page-about .about-trend-bar {
  display: block;
  width: 100%;
  max-width: 34px;
  border-radius: 8px 8px 2px 2px;
  background: linear-gradient(180deg, var(--kiwi), var(--deep));
  box-shadow: 0 0 14px rgba(109, 190, 69, 0.22);
}

.page-about .about-trend-2016 { height: 15%; }
.page-about .about-trend-2018 { height: 32%; }
.page-about .about-trend-2020 { height: 52%; }
.page-about .about-trend-2022 { height: 72%; }
.page-about .about-trend-2024 { height: 88%; }
.page-about .about-trend-2025 { height: 100%; }

.page-about .about-trend-label {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--dim);
  text-align: center;
  line-height: 1.5;
}

.page-about .about-trend-current .about-trend-label {
  color: var(--neon);
  font-weight: 700;
}

.page-about .about-chart-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--dim);
  text-align: right;
}

.page-about .about-data-fold {
  background: var(--surface-dark);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.page-about .about-extra-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
}

.page-about .about-extra-list div {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
}

.page-about .about-extra-list dt {
  color: var(--muted);
}

.page-about .about-extra-list dd {
  margin: 0;
  color: var(--text-strong);
  font-family: var(--font-data);
  font-size: 13px;
  text-align: right;
}

/* ===== Certs ===== */
.page-about .about-certs {
  background: linear-gradient(135deg, rgba(61, 90, 128, 0.22), rgba(123, 45, 66, 0.18));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-tabs {
  margin-top: 28px;
}

.page-about .about-tabs-head {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.page-about .about-tabs-head .tabs-btn {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 12px 18px;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-tabs-head .tabs-btn[aria-selected="true"] {
  color: var(--neon);
  border-bottom-color: var(--kiwi);
}

.page-about .about-tabs-head .tabs-btn:hover {
  color: var(--text-strong);
}

.page-about .tabs-panel[hidden] {
  display: none;
}

.page-about .about-cert-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
}

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

.page-about .about-cert-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(21, 34, 26, 0.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin: 0;
}

.page-about .about-cert-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(109, 190, 69, 0.12);
  color: var(--kiwi);
}

.page-about .about-cert-card h3 {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  margin: 0;
}

.page-about .about-cert-code {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--gold);
  margin: 0;
}

.page-about .about-cert-card > p:last-child {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.page-about .about-cert-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about .about-cert-img {
  width: 160px;
  height: auto;
  border-radius: var(--radius);
}

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

.page-about .about-partner-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(21, 34, 26, 0.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
  margin: 0;
}

.page-about .about-partner-card h3 {
  font-family: var(--font-title);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  margin: 0;
}

.page-about .about-partner-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

/* ===== Next CTA ===== */
.page-about .about-next {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 56px 24px 0;
  text-align: center;
}

.page-about .about-next-title {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 700;
  transform: skewX(-2deg);
  color: var(--text-strong);
  margin: 0 0 12px;
}

.page-about .about-next-lead {
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 24px;
}

.page-about .about-next-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ===== Media Queries ===== */
@media (min-width: 768px) {
  .page-about .about-story-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
  }

  .page-about .about-milestones-layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
  }

  .page-about .about-milestones-figure {
    position: sticky;
    top: 24px;
  }

  .page-about .about-data-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-about .about-charts-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

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

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

  .page-about .about-cert-layout {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .page-about .about-partner-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero-lead {
    font-size: 18px;
  }

  .page-about .about-section-head p {
    width: auto;
    flex: 1;
    text-align: right;
  }

  .page-about .about-data-cell {
    padding: 28px 18px;
  }

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

  .page-about .about-milestones-inner,
  .page-about .about-certs-inner {
    padding: 64px 24px;
  }
}