/* About chapter page */

.about-chapter-page {
  background: var(--color-white);
}

.about-breadcrumb-wrap {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}

.about-breadcrumb {
  margin-bottom: 0;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.about-hero {
  position: relative;
  overflow: hidden;
  color: var(--color-white);
  background:
    linear-gradient(105deg, rgba(8, 18, 30, 0.98) 0%, rgba(8, 18, 30, 0.92) 54%, rgba(8, 18, 30, 0.62) 100%),
    url("../images/main.png") center / cover no-repeat;
}

.about-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: rgba(212, 184, 122, 0.45);
}

.about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: end;
  min-height: clamp(500px, 64vh, 660px);
  padding-top: clamp(3rem, 6vw, 5.5rem);
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
}

.about-hero-copy {
  max-width: 850px;
}

.about-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin: 0 0 1rem;
  padding: 0 0.72rem;
  color: var(--color-accent-light);
  background: rgba(184, 148, 90, 0.13);
  border: 1px solid rgba(184, 148, 90, 0.32);
  border-radius: var(--border-radius);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0;
}

.about-hero h1 {
  max-width: 900px;
  margin: 0 0 1.2rem;
  color: var(--color-white);
  font-size: clamp(2.25rem, 5vw, 4.35rem);
  line-height: 1.12;
}

.about-hero-lead {
  max-width: 720px;
  margin: 0 0 1.6rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.85;
}

.about-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.about-hero-meta a,
.about-hero-meta span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0.55rem 0.85rem;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--border-radius);
  font-size: 0.92rem;
  line-height: 1.35;
}

.about-hero-meta a {
  color: var(--color-primary);
  background: var(--color-accent-light);
  border-color: rgba(212, 184, 122, 0.54);
  font-weight: 800;
}

.about-hero-aside {
  padding: clamp(1.2rem, 3vw, 1.7rem);
  background: rgba(9, 20, 32, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
}

.about-hero-aside span {
  display: block;
  margin-bottom: 0.9rem;
  color: var(--color-accent-light);
  font-size: 0.85rem;
  font-weight: 800;
}

.about-hero-aside ul {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-hero-aside li {
  margin: 0;
  padding: 0.72rem 0.8rem;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius);
  font-weight: 700;
}

.about-anchor-nav {
  position: sticky;
  top: 80px;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-gray-200);
  backdrop-filter: blur(10px);
}

.about-anchor-nav .container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.about-anchor-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.42rem 0.7rem;
  color: var(--color-gray-700);
  background: var(--color-off-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  font-size: 0.88rem;
  font-weight: 700;
}

.about-anchor-nav a:hover {
  color: var(--color-accent-dark);
  border-color: rgba(184, 148, 90, 0.42);
}

.about-section {
  padding: clamp(4rem, 8vw, 6.8rem) 0;
}

.about-section-muted {
  background: var(--color-off-white);
}

.about-section-grid {
  display: grid;
  grid-template-columns: minmax(230px, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.about-section-head {
  position: sticky;
  top: 156px;
}

.about-section-head h2 {
  max-width: 520px;
  margin: 0;
  color: var(--color-primary);
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.18;
  scroll-margin-top: 152px;
}

.about-intro-copy {
  max-width: 860px;
}

.about-intro-copy p {
  margin-bottom: 1.15rem;
  color: var(--color-gray-700);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.95;
}

.about-intro-copy p:first-child {
  color: var(--color-primary);
  font-weight: 700;
}

.about-table-wrap {
  margin-top: clamp(2rem, 4vw, 3rem);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 18px 40px rgba(13, 27, 42, 0.06);
}

.about-section-grid .about-table-wrap {
  margin-top: 0;
}

.about-contact-map {
  overflow: hidden;
  margin-top: var(--spacing-lg);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 18px 40px rgba(13, 27, 42, 0.06);
}

.baidu-map-component {
  position: relative;
  min-height: 220px;
  background: var(--color-off-white);
}

.baidu-map-component p {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: var(--spacing-lg);
  color: var(--color-gray-700);
  font-weight: 700;
  text-align: center;
}

.baidu-map-component.is-map-loaded p {
  display: none;
}

.about-baidu-map {
  min-height: 280px;
}

.about-contact-map-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1rem;
  color: var(--color-white);
  background: var(--color-primary);
  font-weight: 800;
  text-decoration: none;
}

.about-contact-map-link:hover {
  color: var(--color-white);
  background: var(--color-primary-light);
}

.about-table {
  min-width: 640px;
  margin: 0;
}

.about-table caption {
  padding: 1rem 1.1rem;
  color: var(--color-primary);
  background: var(--color-off-white);
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 1.05rem;
  font-weight: 800;
  text-align: left;
}

.about-table th {
  white-space: nowrap;
}

.about-table tbody th {
  width: 176px;
  color: var(--color-primary);
  background: rgba(248, 246, 243, 0.72);
  border-bottom: 1px solid var(--color-gray-200);
  font-weight: 800;
  text-align: left;
}

.about-table td {
  color: var(--color-gray-700);
  line-height: 1.75;
}

.about-timeline {
  position: relative;
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0 0 0 1.4rem;
  list-style: none;
}

.about-timeline::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  bottom: 0.55rem;
  left: 0.32rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), rgba(184, 148, 90, 0.18));
}

.about-timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  margin: 0;
  padding: 1.1rem 1.2rem;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 14px 34px rgba(13, 27, 42, 0.05);
}

.about-timeline li::before {
  content: "";
  position: absolute;
  top: 1.45rem;
  left: -1.26rem;
  width: 0.68rem;
  height: 0.68rem;
  background: var(--color-accent);
  border: 3px solid var(--color-off-white);
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(184, 148, 90, 0.45);
}

.about-timeline time {
  color: var(--color-accent-dark);
  font-size: 1.05rem;
  font-weight: 850;
  line-height: 1.5;
}

.about-timeline p {
  margin: 0;
  color: var(--color-gray-700);
  line-height: 1.78;
}

.about-table-area {
  min-width: 0;
}

.about-honors-section {
  background:
    linear-gradient(180deg, var(--color-white) 0%, rgba(248, 246, 243, 0.7) 100%);
}

.about-honors-content {
  min-width: 0;
}

.about-honors-table-wrap {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.94);
}

.about-honors-table-wrap::after {
  content: "";
  position: absolute;
  right: -74px;
  bottom: -86px;
  width: 210px;
  height: 210px;
  background: radial-gradient(circle, rgba(184, 148, 90, 0.11), transparent 68%);
  pointer-events: none;
}

.about-honors-table {
  position: relative;
  z-index: 1;
  width: 100%;
}

.about-honors-table thead th {
  color: var(--color-white);
  background: var(--color-primary);
}

.about-honors-table tbody th {
  width: 168px;
  background: rgba(248, 246, 243, 0.9);
}

.about-honors-table tbody td {
  color: var(--color-primary);
  font-weight: 650;
}

.about-disclaimer {
  margin: 1rem 0 0;
  padding: 1rem 1.1rem;
  color: var(--color-gray-600);
  background: var(--color-off-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  font-size: 0.94rem;
  line-height: 1.8;
}

.about-honors-disclaimer {
  margin-top: 1.15rem;
  background: rgba(255, 255, 255, 0.86);
}

.about-footer {
  margin-top: 0;
}

.about-footer-grid {
  grid-template-columns: minmax(260px, 1.2fr) repeat(2, minmax(170px, 0.7fr));
}

@media (max-width: 1024px) {
  body.about-chapter-page {
    padding-bottom: 0;
  }

  .about-chapter-page .mobile-call-float {
    position: static;
    display: flex;
    margin: 0.75rem var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: none;
  }

  .about-hero-inner,
  .about-section-grid {
    grid-template-columns: 1fr;
  }

  .about-section-head {
    position: static;
  }

  .about-section-head h2 {
    scroll-margin-top: 96px;
  }

  .about-anchor-nav {
    top: 72px;
  }
}

@media (max-width: 768px) {
  .about-hero-inner {
    min-height: auto;
  }

  .about-hero-meta a,
  .about-hero-meta span {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .about-anchor-nav {
    position: static;
  }

  .about-anchor-nav .container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-anchor-nav a {
    justify-content: center;
    text-align: center;
  }

  .about-timeline {
    padding-left: 1rem;
  }

  .about-timeline li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

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

  .about-footer-grid .footer-col,
  .about-footer-grid .footer-col h4,
  .about-footer-grid .footer-col ul {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 520px) {
  .about-anchor-nav .container {
    grid-template-columns: 1fr;
  }

  .about-table {
    min-width: 0;
  }

  .about-table,
  .about-table caption,
  .about-table thead,
  .about-table tbody,
  .about-table tr,
  .about-table th,
  .about-table td {
    display: block;
    width: 100%;
  }

  .about-table thead {
    display: none;
  }

  .about-table tr {
    padding: 0.95rem 1rem;
    border-bottom: 1px solid var(--color-gray-200);
  }

  .about-table tr:last-child {
    border-bottom: 0;
  }

  .about-table th,
  .about-table td {
    padding: 0;
    border-bottom: 0;
  }

  .about-table tbody th {
    width: 100%;
    margin-bottom: 0.35rem;
    background: transparent;
  }

  .about-table-wrap {
    overflow: hidden;
  }
}