/* ===== 关于澳博中文 — 编辑目录式长页 ===== */

.page-about {
  --about-side-w: 272px;
  --about-line-strong: rgba(201, 160, 99, 0.35);
  --about-grid-bg: linear-gradient(90deg, rgba(201, 160, 99, 0.05) 1px, transparent 1px),
                   linear-gradient(rgba(201, 160, 99, 0.05) 1px, transparent 1px);
  --about-bg-size: 28px 28px;
  background: var(--aob-c-rice);
}

/* ===== 面包屑 ===== */
.page-about .aob-breadcrumbs {
  padding-top: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--aob-c-line);
  font-size: 0.82rem;
}

/* ===== 首屏导读 ===== */
.page-about__intro {
  background:
    var(--about-grid-bg),
    var(--aob-c-primary);
  background-size: var(--about-bg-size), auto;
  color: var(--aob-c-rice);
  padding: clamp(28px, 5vw, 52px) 0 clamp(24px, 4vw, 44px);
  border-bottom: 3px solid var(--aob-c-gold);
}

.page-about__intro-grid {
  display: grid;
  gap: 22px;
}

.page-about__intro .aob-kicker {
  color: var(--aob-c-gold);
  margin-bottom: 10px;
  letter-spacing: 0.14em;
}

.page-about__intro .aob-h1 {
  color: var(--aob-c-rice);
  margin: 0;
  font-size: clamp(1.9rem, 4.6vw, 3rem);
  letter-spacing: 0.01em;
}

.page-about__intro-body {
  border-left: 2px solid var(--aob-c-gold);
  padding-left: 16px;
  color: rgba(247, 243, 235, 0.9);
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-about__intro-body p + p {
  margin-top: 10px;
}

.page-about__intro-data {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 16px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--about-line-strong);
}

.page-about__intro-stat {
  display: flex;
  flex-direction: column;
}

.page-about__intro-stat-num {
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  color: var(--aob-c-gold);
  line-height: 1.2;
}

.page-about__intro-stat-label {
  font-size: 0.75rem;
  color: var(--aob-c-muted);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* ===== 本页索引 ===== */
.page-about__indexbar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--aob-c-line);
}

.page-about__indexbar-label {
  color: var(--aob-c-rock);
  font-size: 0.72rem;
}

.page-about__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 22px;
}

.page-about__index-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  color: var(--aob-c-ink);
  font-size: 0.9rem;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--aob-ease), border-color 0.2s var(--aob-ease);
}

.page-about__index-no {
  font-size: 0.7rem;
  color: var(--aob-c-gold);
  min-width: 24px;
}

.page-about__index-link:hover,
.page-about__index-link:focus-visible {
  color: var(--aob-c-primary);
  border-bottom-color: var(--aob-c-gold);
}

/* ===== 通用节区骨架 ===== */
.page-about__section {
  border-top: 1px solid var(--aob-c-line);
}

.page-about__section--rice {
  background: var(--about-grid-bg);
  background-size: var(--about-bg-size);
}

.page-about__section--dark {
  background: var(--about-grid-bg), var(--aob-c-primary);
  background-size: var(--about-bg-size), auto;
  color: var(--aob-c-rice);
  border-top: 1px solid rgba(201, 160, 99, 0.28);
  border-bottom: 1px solid rgba(201, 160, 99, 0.28);
}

.page-about__section-grid {
  display: grid;
  gap: 28px;
}

.page-about__section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--aob-c-primary);
  border: 1px solid var(--aob-c-gold);
  padding: 5px 12px;
  margin-bottom: 12px;
}

.page-about__section-num--gold {
  color: var(--aob-c-gold);
  border-color: rgba(201, 160, 99, 0.55);
}

.page-about__section-side .aob-h2,
.page-about__section-side .aob-h2 + * {
  margin-top: 12px;
}

.page-about__section-lead {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--aob-c-rock);
  margin: 14px 0;
}

.page-about__section-side .aob-btn {
  margin-top: 4px;
}

.page-about__section--dark .page-about__section-lead {
  color: rgba(247, 243, 235, 0.72);
}

.page-about__section--dark .aob-h2 {
  color: var(--aob-c-rice);
}

/* ===== 品牌沿革时间轴 ===== */
.page-about__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--aob-c-gold);
  opacity: 0.4;
}

.page-about__timeline-item {
  position: relative;
  padding-left: 28px;
  padding-bottom: 26px;
  margin-bottom: 6px;
}

.page-about__timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--aob-c-primary);
  border: 2px solid var(--aob-c-gold);
  box-sizing: border-box;
}

.page-about__timeline-item:last-child {
  padding-bottom: 0;
}

.page-about__timeline-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-bottom: 8px;
}

.page-about__timeline-year {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--aob-c-primary);
  letter-spacing: 0.03em;
}

.page-about__timeline-card {
  background: rgba(247, 243, 235, 0.72);
  border-left: 2px solid var(--aob-c-gold);
  padding: 14px 16px;
}

.page-about__timeline-card .aob-h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.62;
  color: var(--aob-c-ink);
}

/* ===== 整合逻辑（深色区块） ===== */
.page-about__logic-head {
  display: grid;
  gap: 16px;
  margin-bottom: 30px;
}

.page-about__logic-heading {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.page-about__logic-heading .page-about__section-num {
  flex-shrink: 0;
  margin-top: 4px;
}

.page-about__logic-heading .aob-h2 {
  color: var(--aob-c-rice);
  margin: 0;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
}

.page-about__logic-lead {
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(247, 243, 235, 0.78);
  max-width: 660px;
  border-left: 2px solid var(--aob-c-gold);
  padding-left: 16px;
}

.page-about__logic-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about__logic-item {
  display: flex;
  gap: 14px;
  background: rgba(20, 37, 61, 0.55);
  border: 1px solid rgba(201, 160, 99, 0.16);
  padding: 18px 16px;
}

.page-about__logic-index {
  font-size: 0.9rem;
  color: var(--aob-c-gold);
  flex-shrink: 0;
  line-height: 1.4;
}

.page-about__logic-item .aob-h3 {
  color: var(--aob-c-rice);
  margin: 0 0 6px;
  font-size: 1.04rem;
}

.page-about__logic-item p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.62;
  color: rgba(247, 243, 235, 0.74);
}

.page-about__logic-note {
  font-size: 0.84rem;
  color: rgba(247, 243, 235, 0.65);
  border-top: 1px solid rgba(201, 160, 99, 0.22);
  padding-top: 14px;
}

.page-about__logic-note a,
.page-about__archive-text .page-about__link-on-dark {
  color: var(--aob-c-gold);
}

/* ===== 核心数据（表格 + 图） ===== */
.page-about__figure {
  margin: 0 0 20px;
}

.page-about__figure img {
  display: block;
  max-width: 100%;
  height: auto;
  background: var(--aob-c-rice);
  border: 1px solid var(--aob-c-line);
}

.page-about__figure .aob-figure__caption {
  margin-top: 8px;
  font-size: 0.76rem;
  color: var(--aob-c-muted);
  letter-spacing: 0.04em;
}

.page-about__data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.page-about__data-table caption {
  text-align: left;
  margin-bottom: 6px;
}

.page-about__data-table th,
.page-about__data-table td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--aob-c-line);
  text-align: left;
  vertical-align: middle;
}

.page-about__data-table thead th {
  font-family: var(--aob-font-head);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--aob-c-muted);
  border-top: 1px solid var(--aob-c-gold);
  border-bottom: 2px solid var(--aob-c-gold);
}

.page-about__data-table tbody th {
  font-weight: 500;
  color: var(--aob-c-ink);
}

.page-about__data-table td {
  text-align: right;
  font-family: var(--aob-font-mono);
  color: var(--aob-c-primary);
  white-space: nowrap;
}

.page-about__data-note {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--aob-c-muted);
}

/* ===== 区域覆盖 ===== */
.page-about__coverage-grid {
  display: grid;
  gap: 28px;
}

.page-about__coverage-list {
  margin-top: 8px;
}

.page-about__coverage-list li {
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--aob-c-ink);
}

.page-about__coverage-extra {
  font-size: 0.84rem;
  color: var(--aob-c-rock);
  margin-top: 16px;
  border-left: 2px solid var(--aob-c-terracotta);
  padding-left: 12px;
}

.page-about__figure--map img {
  border-color: rgba(201, 160, 99, 0.3);
}

/* ===== 资质折叠面板 ===== */
.page-about__cred-list {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-about__cred {
  background: rgba(247, 243, 235, 0.9);
  border: 1px solid var(--aob-c-line);
  border-left: 3px solid var(--aob-c-gold);
}

.page-about__cred summary {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  min-height: 56px;
}

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

.page-about__cred-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--aob-c-gold);
  color: var(--aob-c-primary);
  font-family: var(--aob-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.page-about__cred-title {
  font-family: var(--aob-font-head);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.3;
  color: var(--aob-c-ink);
  flex: 1;
  min-width: 180px;
}

.page-about__cred-status {
  flex-shrink: 0;
}

.page-about__cred-toggle {
  margin-left: auto;
  font-family: var(--aob-font-mono);
  font-size: 1.1rem;
  color: var(--aob-c-gold);
  flex-shrink: 0;
  transition: transform 0.2s var(--aob-ease);
}

.page-about__cred[open] .page-about__cred-toggle {
  transform: rotate(45deg);
}

.page-about__cred-content {
  border-top: 1px solid var(--aob-c-line);
  padding: 14px 16px 16px 72px;
}

.page-about__cred-content p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--aob-c-rock);
}

.page-about__figure--eco img {
  border-color: rgba(201, 160, 99, 0.3);
}

/* ===== 存档区 ===== */
.page-about__archive .aob-h2 {
  color: var(--aob-c-rice);
  margin: 0;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
}

.page-about__archive-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.page-about__archive-head .page-about__section-num {
  flex-shrink: 0;
  margin: 0;
}

.page-about__archive-grid {
  display: grid;
  gap: 24px;
}

.page-about__archive-text p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(247, 243, 235, 0.82);
  margin: 0 0 12px;
}

.page-about__archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about__archive-actions .aob-btn--ghost {
  border-color: rgba(201, 160, 99, 0.5);
  color: var(--aob-c-gold);
}

.page-about__archive-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.page-about__archive-metric {
  border: 1px solid rgba(201, 160, 99, 0.2);
  background: rgba(20, 37, 61, 0.55);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
}

.page-about__archive-metric .aob-data {
  font-size: 1.3rem;
  color: var(--aob-c-gold);
  line-height: 1.3;
}

.page-about__archive-metric-label {
  font-size: 0.74rem;
  color: var(--aob-c-muted);
  margin-top: 4px;
}

/* ===== 信任声明 ===== */
.page-about__trust {
  margin: 0;
  padding: 28px 20px;
  border-top: 3px solid var(--aob-c-gold);
  border-bottom: 1px solid var(--aob-c-line);
}

.page-about__trust p {
  margin: 0;
  font-family: var(--aob-font-head);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--aob-c-primary);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ===== 响应式：平板 ===== */
@media (min-width: 768px) {
  .page-about__intro-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
    align-items: end;
  }

  .page-about__intro-data {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

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

  .page-about__logic-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .page-about__logic-item {
    min-height: 100%;
  }

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

/* ===== 响应式：桌面 ===== */
@media (min-width: 1024px) {
  .page-about__section-grid {
    grid-template-columns: var(--about-side-w) 1fr;
    gap: clamp(40px, 5vw, 68px);
  }

  .page-about__section-side {
    position: sticky;
    top: 24px;
    align-self: start;
    padding-top: 4px;
  }

  .page-about__section-side .aob-h2 {
    margin-top: 6px;
  }

  .page-about__logic-head {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: end;
  }

  .page-about__coverage-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(40px, 5vw, 68px);
    align-items: center;
  }

  .page-about__figure--map img {
    width: 100%;
    max-width: 800px;
  }

  .page-about__archive-grid {
    grid-template-columns: 1.3fr 0.9fr;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-about__archive-metrics {
    grid-template-columns: 1fr;
    align-content: start;
  }

  .page-about__archive-metric {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    padding: 14px 16px;
  }

  .page-about__archive-metric-label {
    margin-top: 0;
  }

  .page-about__trust {
    padding: 36px 40px;
  }
}

/* ===== 动效：滚动显现 ===== */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.22s var(--aob-ease), transform 0.22s var(--aob-ease);
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}