/* ================================
   页面：品牌档案（about）
   作用域：.page-about
   移动优先，桌面渐进增强
   ================================ */

.page-about {
  --about-gap-s: 16px;
  --about-gap-m: 24px;
  --about-gap-l: 32px;
  --about-section-pad: 56px 0;
  --about-line-light: rgba(192, 192, 192, 0.35);
  --about-line-mid: rgba(192, 192, 192, 0.55);
  --about-grid-line: rgba(11, 61, 46, 0.08);
  --about-deep-veil: rgba(245, 240, 230, 0.06);
  background: var(--color-cream);
  color: var(--color-deep-black);
  overflow-x: hidden;
}

/* ---------- 共享 section-head 的页面级微调 ---------- */

.page-about .section-head {
  display: flex;
  align-items: center;
  gap: var(--about-gap-s);
  margin-bottom: var(--about-gap-l);
}

.page-about .section-index {
  font-family: var(--font-number);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  white-space: nowrap;
}

.page-about .section-line {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, rgba(192, 192, 192, 0.5) 0 6px, transparent 6px 12px);
}

/* ---------- Hero / 品牌档案首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 24px 0 52px;
  background: var(--color-deep-green);
  background-image:
    linear-gradient(rgba(245, 240, 230, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 240, 230, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  color: var(--color-cream);
  isolation: isolate;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 82% 18%, rgba(212, 175, 55, 0.18), transparent 58%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 28px;
  color: rgba(245, 240, 230, 0.65);
  font-size: 13px;
}

.page-about .about-hero .breadcrumb a {
  color: var(--color-rice-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--color-gold);
}

.page-about .about-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(245, 240, 230, 0.35);
  font-family: var(--font-number);
}

.page-about .about-hero .breadcrumb-list [aria-current="page"] {
  color: rgba(245, 240, 230, 0.8);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap-l);
  position: relative;
  z-index: 1;
}

.page-about .about-hero-copy .section-index {
  color: var(--color-gold);
  font-family: var(--font-number);
  font-size: 13px;
  letter-spacing: 0.16em;
}

.page-about .about-hero h1 {
  font-family: var(--font-heading);
  font-size: 42px;
  line-height: 1.14;
  font-weight: 700;
  margin: 18px 0 16px;
  color: var(--color-cream);
  letter-spacing: -0.01em;
}

.page-about .about-lead {
  font-size: 16px;
  line-height: 1.72;
  max-width: 560px;
  margin: 0;
  color: rgba(245, 240, 230, 0.84);
}

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

.page-about .about-hero-tags .tag {
  background: rgba(245, 240, 230, 0.08);
  border: 1px solid rgba(245, 240, 230, 0.2);
  color: rgba(245, 240, 230, 0.88);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
}

.page-about .about-hero-tags .tag-gold {
  background: rgba(212, 175, 55, 0.16);
  border-color: rgba(212, 175, 55, 0.5);
  color: var(--color-rice-gold);
}

/* Hero 数据面板视觉 */

.page-about .about-hero-visual {
  display: block;
  min-width: 0;
}

.page-about .about-hero-board {
  position: relative;
  padding: 26px 20px 16px;
  border: 1px solid rgba(212, 175, 55, 0.28);
  background: rgba(245, 240, 230, 0.05);
  backdrop-filter: blur(2px);
}

.page-about .about-hero-corner {
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.page-about .about-hero-corner-tl {
  top: -1px;
  left: -1px;
  border-top: 3px solid var(--color-gold);
  border-left: 3px solid var(--color-gold);
}

.page-about .about-hero-corner-br {
  bottom: -1px;
  right: -1px;
  border-bottom: 3px solid var(--color-gold);
  border-right: 3px solid var(--color-gold);
}

.page-about .about-hero-axis-label {
  font-family: var(--font-number);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(245, 240, 230, 0.5);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.page-about .about-hero-chart {
  display: block;
  width: 100%;
  height: auto;
  max-width: 520px;
  margin: 0 auto;
}

.page-about .about-hero-board-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(245, 240, 230, 0.14);
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(245, 240, 230, 0.6);
}

/* ---------- 品牌缘起 ---------- */

.page-about .about-origin {
  padding: var(--about-section-pad);
  background: var(--color-cream);
}

.page-about .about-origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap-l);
}

.page-about .about-origin-text p {
  font-size: 15px;
  line-height: 1.72;
  color: rgba(26, 26, 26, 0.82);
  margin: 0 0 14px;
}

.page-about .about-origin-text p:last-child {
  margin-bottom: 0;
}

.page-about .about-origin-card {
  position: relative;
  padding: 28px 24px;
  background: var(--color-deep-green);
  border-left: 4px solid var(--color-gold);
  color: var(--color-cream);
  box-shadow: var(--shadow-card);
}

.page-about .about-origin-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, transparent 50%, rgba(212, 175, 55, 0.35) 50%);
}

.page-about .about-origin-card-index {
  display: block;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--color-rice-gold);
  margin-bottom: 14px;
}

.page-about .about-origin-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--color-cream);
}

.page-about .about-origin-card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.82);
  margin: 0;
}

/* ---------- 发展里程碑 ---------- */

.page-about .about-milestones {
  padding: var(--about-section-pad);
  background: var(--color-cream);
  border-top: 1px solid var(--about-grid-line);
}

.page-about .about-milestones-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap-l);
}

.page-about .about-timeline-wrap {
  position: relative;
  padding-left: 30px;
}

.page-about .about-timeline-line {
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(to bottom, var(--color-gold) 0%, var(--color-light-gray) 100%);
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-about .about-timeline-item {
  position: relative;
}

.page-about .about-timeline-dot {
  position: absolute;
  left: -30px;
  top: 20px;
  width: 14px;
  height: 14px;
  border: 3px solid var(--color-gold);
  background: var(--color-cream);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.18);
  z-index: 1;
}

.page-about .about-timeline-card {
  border: 1px solid var(--about-line-light);
  border-left: 3px solid var(--color-gold);
  padding: 18px 20px;
  background: rgba(245, 240, 230, 0.5);
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.page-about .about-timeline-card:hover {
  border-color: var(--color-gold);
  border-left-width: 3px;
  background: var(--color-cream);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.page-about .about-timeline-year {
  display: inline-block;
  font-family: var(--font-number);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  padding: 2px 10px 2px 0;
  border-bottom: 2px solid rgba(212, 175, 55, 0.4);
}

.page-about .about-timeline-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 10px 0 8px;
  color: var(--color-deep-black);
}

.page-about .about-timeline-card p {
  font-size: 14px;
  line-height: 1.68;
  color: rgba(26, 26, 26, 0.76);
  margin: 0;
}

.page-about .about-timeline-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-timeline-figure .img-frame {
  position: relative;
  overflow: hidden;
}

.page-about .about-timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.page-about .about-timeline-figure:hover img {
  transform: scale(1.02);
}

/* ---------- 服务数据概览 ---------- */

.page-about .about-data {
  padding: var(--about-section-pad);
  background: var(--color-footer-bg);
  color: var(--color-cream);
}

.page-about .about-data .section-line {
  background: repeating-linear-gradient(90deg, rgba(212, 175, 55, 0.4) 0 6px, transparent 6px 12px);
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap-l);
  align-items: center;
}

.page-about .about-data-panel {
  position: relative;
  padding: 24px 20px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  background: rgba(245, 240, 230, 0.06);
}

.page-about .about-data-panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 30px;
  height: 30px;
  border-top: 4px solid var(--color-gold);
  border-left: 4px solid var(--color-gold);
}

.page-about .about-data-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 16px;
}

.page-about .about-stat {
  padding: 10px 6px 14px;
  border-bottom: 1px solid rgba(245, 240, 230, 0.14);
  min-width: 0;
}

.page-about .about-stat .stat-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(245, 240, 230, 0.55);
}

.page-about .about-stat .num-display,
.page-about .about-stat .num-display-gold {
  display: block;
  font-family: var(--font-number);
  font-size: 40px;
  line-height: 1.1;
  font-weight: 700;
  margin: 8px 0 4px;
  letter-spacing: -0.02em;
}

.page-about .about-stat .num-display {
  color: var(--color-cream);
}

.page-about .about-stat .num-display-gold {
  color: var(--color-gold);
}

.page-about .about-stat-note {
  font-size: 12px;
  color: rgba(245, 240, 230, 0.5);
  display: block;
}

.page-about .about-data-update {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 240, 230, 0.14);
}

.page-about .about-data-update .tag-success {
  background: rgba(46, 125, 81, 0.3);
  border: 1px solid rgba(46, 125, 81, 0.7);
  color: var(--color-rice-gold);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
}

.page-about .about-update-text {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.68);
}

.page-about .about-data-figure {
  margin: 0;
  min-width: 0;
}

.page-about .about-data-figure .img-frame {
  position: relative;
  overflow: hidden;
}

.page-about .about-data-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 资质与信誉 ---------- */

.page-about .about-trust {
  padding: var(--about-section-pad);
  background: var(--color-cream);
}

.page-about .about-trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap-l);
  align-items: center;
}

.page-about .about-seal-wrap {
  margin: 0;
  min-width: 0;
}

.page-about .about-seal-wrap .img-frame {
  aspect-ratio: 1 / 1;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--about-line-light);
  background-image:
    linear-gradient(rgba(11, 61, 46, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 61, 46, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
}

.page-about .about-seal-wrap img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.page-about .about-trust-content {
  display: grid;
  gap: 18px;
}

.page-about .about-trust-item {
  position: relative;
  padding: 18px 20px;
  border: 1px solid var(--about-line-light);
  background: rgba(245, 240, 230, 0.7);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

.page-about .about-trust-item:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-about .about-trust-label {
  display: block;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.page-about .about-trust-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-deep-black);
}

.page-about .about-trust-item p {
  font-size: 14px;
  line-height: 1.66;
  color: rgba(26, 26, 26, 0.72);
  margin: 8px 0 0;
}

/* ---------- 团队与专业能力 ---------- */

.page-about .about-team {
  padding: var(--about-section-pad);
  background: var(--color-cream);
  border-top: 1px solid var(--about-grid-line);
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-team-grid .card {
  margin: 0;
  padding: 24px 22px;
  border: 1px solid var(--about-line-light);
  background: var(--color-cream);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

.page-about .about-team-grid .card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.page-about .about-team-index {
  display: block;
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.35);
}

.page-about .about-team-grid h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--color-deep-black);
}

.page-about .about-team-grid p {
  font-size: 14px;
  line-height: 1.68;
  color: rgba(26, 26, 26, 0.78);
  margin: 0;
}

.page-about .about-team-note {
  margin-top: 32px;
  padding: 28px 22px;
  border: 2px dashed var(--about-line-mid);
  text-align: center;
  background: rgba(245, 240, 230, 0.5);
}

.page-about .about-team-note p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(26, 26, 26, 0.74);
  max-width: 620px;
  margin: 0 auto;
}

.page-about .about-team-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.page-about .about-team-cta .btn-ghost {
  border: 1px solid var(--color-deep-green);
  color: var(--color-deep-green);
  background: transparent;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.page-about .about-team-cta .btn-ghost:hover {
  background: var(--color-deep-green);
  color: var(--color-cream);
}

.page-about .about-team-cta .btn-cta {
  background: var(--color-gold);
  border: 1px solid var(--color-gold);
  color: var(--color-deep-black);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition:
    background-color 0.2s ease,
    transform 0.2s ease;
}

.page-about .about-team-cta .btn-cta:hover {
  background: var(--color-rice-gold);
  transform: translateY(-2px);
}

/* ---------- 底部联系 CTA ---------- */

.page-about .about-contact {
  position: relative;
  padding: 64px 0;
  background: var(--color-deep-green);
  background-image:
    linear-gradient(rgba(245, 240, 230, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 240, 230, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  overflow: hidden;
}

.page-about .about-contact::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(212, 175, 55, 0.28), transparent 70%);
  pointer-events: none;
}

.page-about .about-contact-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.page-about .about-contact-inner .section-index {
  color: rgba(245, 240, 230, 0.5);
  font-family: var(--font-number);
  font-size: 12px;
  letter-spacing: 0.2em;
}

.page-about .about-contact h2 {
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-cream);
  margin: 14px 0 10px;
}

.page-about .about-contact p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.7);
  margin: 0 0 28px;
}

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

.page-about .about-contact-actions .btn {
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  display: inline-block;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.page-about .about-contact-actions .btn-cta {
  background: var(--color-gold);
  border: 1px solid var(--color-gold);
  color: var(--color-deep-black);
}

.page-about .about-contact-actions .btn-cta:hover {
  background: var(--color-rice-gold);
  transform: translateY(-2px);
}

.page-about .about-contact-actions .btn-ghost {
  background: transparent;
  border: 1px solid rgba(245, 240, 230, 0.45);
  color: var(--color-cream);
}

.page-about .about-contact-actions .btn-ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateY(-2px);
}

/* ================================
   桌面端增强
   ================================ */

@media (min-width: 768px) {
  .page-about {
    --about-section-pad: 76px 0;
    --about-gap-l: 44px;
  }

  .page-about .about-hero {
    padding: 28px 0 72px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-hero h1 {
    font-size: 48px;
    margin-top: 20px;
  }

  .page-about .about-lead {
    font-size: 17px;
  }

  .page-about .about-hero-board {
    padding: 32px 28px 18px;
  }

  .page-about .about-origin-grid {
    grid-template-columns: 1.35fr 1fr;
    gap: 44px;
    align-items: stretch;
  }

  .page-about .about-origin-text p {
    font-size: 16px;
    margin-bottom: 16px;
  }

  .page-about .about-origin-card {
    padding: 32px 28px;
  }

  .page-about .about-milestones-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-timeline-card {
    padding: 20px 24px;
  }

  .page-about .about-data-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 48px;
  }

  .page-about .about-data-panel {
    padding: 30px 26px;
  }

  .page-about .about-stat .num-display,
  .page-about .about-stat .num-display-gold {
    font-size: 44px;
  }

  .page-about .about-trust-grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 48px;
  }

  .page-about .about-trust-item {
    padding: 20px 24px;
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-about .about-team-note {
    padding: 34px 28px;
  }

  .page-about .about-contact {
    padding: 84px 0;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-bottom: 88px;
  }

  .page-about .about-hero h1 {
    font-size: 54px;
  }

  .page-about .about-hero-grid {
    gap: 56px;
  }

  .page-about .about-hero-copy {
    max-width: 560px;
  }

  .page-about .about-hero-chart {
    max-width: none;
  }

  .page-about .about-data-stats {
    gap: 26px 20px;
  }

  .page-about .about-data-update {
    margin-top: 26px;
  }

  .page-about .about-contact h2 {
    font-size: 34px;
  }
}