/* ========== 品牌概况页 · 展览档案式 ========== */
.page-about {
  background-color: var(--cabbage-050);
}

/* ---------- Hero 框景入口 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid rgba(140, 206, 149, 0.35);
  background:
    radial-gradient(900px 360px at 92% -10%, rgba(216, 238, 217, 0.8), transparent 65%),
    linear-gradient(180deg, var(--cabbage-050) 0%, var(--cabbage-100) 100%);
}

.page-about .about-breadcrumb {
  margin-bottom: 1.5rem;
}

.page-about .about-hero-panel {
  position: relative;
  padding: 2.2rem 1.6rem 2.5rem;
  background: var(--paper);
  border: 1px solid var(--cabbage-300);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
}

.page-about .about-hero-scale {
  position: absolute;
  top: 1.1rem;
  right: 1.4rem;
  font-family: var(--font-headline);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold-600);
}

.page-about .about-hero-copy {
  position: relative;
  z-index: 1;
}

.page-about .about-hero-kicker {
  margin: 0 0 0.8rem;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cabbage-700);
}

.page-about .about-hero h1 {
  margin: 0 0 1.4rem;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.7rem, 5.2vw, 3.1rem);
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-about .about-hero-lead {
  max-width: 34em;
  margin: 0 0 1.8rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-500);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-hero-aside {
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 0;
  display: none;
}

/* ---------- 章节索引导航 ---------- */
.page-about .about-chapter-nav {
  padding: 0.8rem 0;
  background: var(--cabbage-050);
  border-bottom: 1px solid rgba(140, 206, 149, 0.45);
}

.page-about .about-chapter-nav .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-about .about-chapter-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(140, 206, 149, 0.65);
  border-radius: 999px;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 700;
  color: var(--cabbage-700);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.page-about .about-chapter-nav a i {
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  color: var(--gold-600);
}

.page-about .about-chapter-nav a:hover,
.page-about .about-chapter-nav a:focus-visible {
  background: var(--cabbage-700);
  border-color: var(--cabbage-700);
  color: var(--paper);
}

.page-about .about-chapter-nav a:hover i,
.page-about .about-chapter-nav a:focus-visible i {
  color: var(--gold-400);
}

/* ---------- 章节公共结构 ---------- */
.page-about .about-section {
  padding: 4rem 0;
  scroll-margin-top: 2.5rem;
}

.page-about .about-section--intro {
  background: var(--cabbage-050);
}

.page-about .about-section--journey {
  background: var(--paper);
}

.page-about .about-section--data {
  background: var(--navy-800);
}

.page-about .about-section--governance {
  background: var(--cabbage-050);
}

.page-about .about-section--ecosystem {
  background: var(--paper);
}

.page-about .about-section-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2.6rem;
}

.page-about .about-section-index {
  flex-shrink: 0;
  margin-top: 0.1rem;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 4rem;
  line-height: 0.85;
  letter-spacing: -0.08em;
  color: transparent;
  -webkit-text-stroke: 2px var(--cabbage-300);
}

.page-about .about-section-title-wrap {
  flex: 1;
  padding-top: 0.15rem;
}

.page-about .about-section-title-wrap .section-label {
  margin: 0 0 0.45rem;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cabbage-700);
}

.page-about .about-section-title-wrap .section-title {
  margin: 0;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.45rem, 4vw, 2.35rem);
  line-height: 1.3;
  color: var(--ink-900);
  max-width: 14em;
}

.page-about .about-section-head .text-note-vertical {
  display: none;
  flex-shrink: 0;
  align-self: flex-end;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-500);
}

.page-about .about-section--data .about-section-index {
  -webkit-text-stroke-color: rgba(230, 196, 90, 0.75);
}

.page-about .about-section--data .section-label {
  color: var(--gold-400);
}

.page-about .about-section--data .section-title {
  color: var(--paper);
}

.page-about .about-section--data .text-note-vertical {
  color: var(--cabbage-100);
}

/* ---------- 01 品牌简介 ---------- */
.page-about .about-intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.page-about .about-intro-copy p {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.9;
  color: var(--ink-500);
}

.page-about .about-intro-copy .about-lead {
  margin-bottom: 1.3rem;
  padding-left: 1.1rem;
  border-left: 4px solid var(--gold-400);
  font-family: var(--font-headline);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-900);
}

.page-about .about-intro-aside {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
}

.page-about .about-intro-card {
  padding: 1.3rem 1rem 1.05rem;
  background: var(--paper);
  border: 1px solid rgba(140, 206, 149, 0.55);
  border-radius: 14px;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-base);
}

.page-about .about-intro-card:hover {
  border-color: var(--cabbage-500);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.page-about .about-card-label {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-500);
}

.page-about .about-card-value {
  display: block;
  font-family: var(--font-headline);
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--cabbage-700);
}

/* ---------- 02 发展记载 ---------- */
.page-about .about-journey-block,
.page-about .about-data-grid,
.page-about .about-eco-layout {
  margin-top: 1rem;
}

.page-about .about-journey-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.page-about .about-journey-figure,
.page-about .about-data-figure,
.page-about .about-eco-figure {
  margin: 0;
}

.page-about .about-journey-figure img,
.page-about .about-data-figure img,
.page-about .about-eco-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid rgba(140, 206, 149, 0.5);
}

.page-about .about-journey-figure figcaption,
.page-about .about-data-figure figcaption,
.page-about .about-eco-figure figcaption {
  margin-top: 0.7rem;
  padding-left: 0.8rem;
  border-left: 2px solid var(--gold-400);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-500);
}

.page-about .about-timeline {
  position: relative;
  padding-left: 2.2rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 4px;
  left: 9px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(62, 155, 79, 0.65) 0,
    rgba(62, 155, 79, 0.65) 4px,
    transparent 4px,
    transparent 8px
  );
}

.page-about .about-timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

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

.page-about .about-timeline-dot {
  position: absolute;
  left: -2.2rem;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--cabbage-500);
  box-shadow: 0 0 0 4px rgba(216, 238, 217, 0.6);
  z-index: 1;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-about .about-timeline-item:hover .about-timeline-dot {
  background: var(--gold-400);
  border-color: var(--gold-600);
  box-shadow: 0 0 0 5px rgba(230, 196, 90, 0.35);
}

.page-about .about-timeline-card {
  padding: 1.25rem 1.2rem 1.1rem;
  background: var(--paper);
  border: 1px solid rgba(140, 206, 149, 0.5);
  border-radius: 12px;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-base);
}

.page-about .about-timeline-item:hover .about-timeline-card {
  border-color: var(--cabbage-500);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.page-about .about-timeline-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-headline);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-900);
}

.page-about .about-timeline-card p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--ink-500);
}

.page-about .about-timeline-item--current .about-timeline-dot {
  border-color: var(--gold-600);
  background: var(--cabbage-500);
}

.page-about .about-timeline-item--current .about-timeline-card {
  border-color: var(--gold-400);
  background: linear-gradient(135deg, var(--paper), rgba(216, 238, 217, 0.65));
}

/* ---------- 03 平台数据 ---------- */
.page-about .about-data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .about-data-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
}

.page-about .about-data-item {
  padding: 1.4rem 1.1rem 1.25rem;
  background: rgba(18, 38, 58, 0.55);
  border: 1px solid rgba(216, 238, 217, 0.2);
  border-radius: 16px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.page-about .about-data-item:hover {
  border-color: rgba(230, 196, 90, 0.55);
  background: rgba(18, 38, 58, 0.8);
}

.page-about .about-data-num {
  display: block;
  font-family: var(--font-headline);
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  background: linear-gradient(120deg, var(--gold-400), var(--gold-600));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.page-about .about-data-num .about-data-prefix {
  margin-right: 0.2em;
  font-size: 1rem;
  font-weight: 500;
  color: var(--cabbage-100);
  -webkit-text-fill-color: var(--cabbage-100);
}

.page-about .about-data-num .about-data-unit {
  margin-left: 0.12em;
  font-size: 1.3rem;
  font-weight: 800;
  -webkit-text-fill-color: var(--gold-400);
}

.page-about .about-data-label {
  display: block;
  margin-top: 0.55rem;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cabbage-100);
}

.page-about .about-data-figure img {
  border-color: rgba(216, 238, 217, 0.25);
}

.page-about .about-data-figure figcaption {
  border-left-color: var(--gold-400);
  color: var(--cabbage-100);
}

.page-about .about-data-note {
  max-width: 60em;
  margin-top: 2.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(216, 238, 217, 0.18);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.8;
  color: var(--cabbage-100);
}

/* ---------- 04 治理与审核 ---------- */
.page-about .about-governance-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.3rem;
  margin-top: 1rem;
}

.page-about .about-governance-card {
  position: relative;
  overflow: hidden;
  padding: 1.8rem 1.5rem;
  background: var(--paper);
  border: 1px solid rgba(140, 206, 149, 0.5);
  border-radius: 18px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-base);
}

.page-about .about-governance-card::after {
  content: "";
  position: absolute;
  top: -25%;
  right: -25%;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 238, 217, 0.9) 0%, transparent 70%);
  pointer-events: none;
}

.page-about .about-governance-card:hover {
  border-color: var(--cabbage-500);
  box-shadow: var(--shadow-sm);
}

.page-about .about-governance-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.page-about .about-governance-tag {
  padding: 0.28rem 0.7rem;
  border: 1px solid rgba(230, 196, 90, 0.45);
  border-radius: 999px;
  background: rgba(230, 196, 90, 0.15);
  font-family: var(--font-headline);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold-600);
}

.page-about .about-governance-head h3 {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ink-900);
}

.page-about .about-governance-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink-500);
}

/* ---------- 05 合作与生态 ---------- */
.page-about .about-eco-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-about .about-eco-text p {
  max-width: 36em;
  margin: 0 0 1.1rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink-500);
}

.page-about .about-eco-text .btn {
  margin-top: 0.5rem;
}

/* ---------- 尾部延伸入口 ---------- */
.page-about .about-closing {
  position: relative;
  overflow: hidden;
  padding: 4rem 0;
  background: var(--navy-800);
}

.page-about .about-closing::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 220px at 90% 0%, rgba(230, 196, 90, 0.22), transparent 65%),
    linear-gradient(120deg, rgba(140, 206, 149, 0.18) 0%, transparent 45%);
  pointer-events: none;
}

.page-about .about-closing-inner {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: center;
}

.page-about .about-closing-side {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  align-self: stretch;
}

.page-about .about-closing-index {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 3.4rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px var(--gold-400);
}

.page-about .about-closing-side .text-note-vertical {
  display: none;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--cabbage-100);
}

.page-about .about-closing-copy h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-closing-copy p {
  max-width: 30em;
  margin: 0 0 1.4rem;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.8;
  color: rgba(240, 249, 241, 0.72);
}

.page-about .about-closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

/* ---------- 响应式：平板及以上 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 3rem 0 4rem;
  }

  .page-about .about-hero-panel {
    padding: 3.2rem 3.2rem 3.6rem;
    border-radius: 24px;
  }

  .page-about .about-hero-aside {
    display: block;
  }

  .page-about .about-hero-lead {
    font-size: 1.06rem;
  }

  .page-about .about-section {
    padding: 5rem 0;
  }

  .page-about .about-section-head {
    margin-bottom: 3rem;
  }

  .page-about .about-section-head .text-note-vertical {
    display: inline-block;
  }

  .page-about .about-intro-grid {
    grid-template-columns: 1.35fr 0.85fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-journey-block {
    grid-template-columns: 0.75fr 1.25fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-data-grid {
    grid-template-columns: 1.45fr 1fr;
    gap: 3rem;
    align-items: center;
  }

  .page-about .about-governance-layout {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
  }

  .page-about .about-eco-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }

  .page-about .about-closing {
    padding: 5rem 0;
  }

  .page-about .about-closing-side .text-note-vertical {
    display: block;
  }
}

/* ---------- 响应式：桌面 ---------- */
@media (min-width: 1024px) {
  .page-about .about-hero-panel {
    padding: 4rem 4.5rem 4.5rem;
  }

  .page-about .about-hero h1 {
    font-size: 3rem;
  }

  .page-about .about-section {
    padding: 6.5rem 0;
  }

  .page-about .about-section-head {
    margin-bottom: 3.6rem;
  }

  .page-about .about-section-index {
    font-size: 5.4rem;
  }

  .page-about .about-section-title-wrap .section-title {
    font-size: 2.5rem;
  }

  .page-about .about-data-num {
    font-size: 3.1rem;
  }

  .page-about .about-closing {
    padding: 6rem 0;
  }

  .page-about .about-closing-inner {
    gap: 2.5rem;
  }

  .page-about .about-closing-index {
    font-size: 4.5rem;
  }
}