/* ===== 页面专属：品牌概况 ===== */
.page-about {
  --about-gold: #D4AF37;
  --about-gold-light: #F0D68A;
  --about-dark-red: #8B0000;
  --about-red-light: #B22222;
  --about-bg-black: #0A0A0A;
  --about-surface: #1A1A1A;
  --about-text-white: #F5F5F5;
  --about-muted: #666666;
  --about-font-heading: Impact, 'Helvetica Neue', Arial, sans-serif;
  --about-font-body: Georgia, 'Times New Roman', serif;
  --about-radius-card: 12px;
  --about-transition: 0.25s ease;

  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--about-bg-black);
  color: var(--about-text-white);
  font-family: var(--about-font-body);
  line-height: 1.6;
}

/* 面包屑 */
.page-about .breadcrumb {
  max-width: var(--max-width, 1200px);
  width: 100%;
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
  font-size: 0.85rem;
  color: var(--about-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}
.page-about .breadcrumb a {
  color: var(--about-gold);
  text-decoration: none;
  transition: opacity var(--about-transition);
}
.page-about .breadcrumb a:hover {
  opacity: 0.8;
}
.page-about .breadcrumb-sep {
  color: var(--about-muted);
}
.page-about .breadcrumb [aria-current="page"] {
  color: var(--about-text-white);
  font-weight: 600;
}

/* 首屏 Hero */
.page-about .about-hero {
  max-width: var(--max-width, 1200px);
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
}
.page-about .about-hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}
.page-about .about-hero__text {
  flex: 1 1 100%;
  text-align: center;
}
.page-about .about-hero__title {
  font-family: var(--about-font-heading);
  font-size: 2.4rem;
  color: var(--about-gold);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 12px rgba(212, 175, 55, 0.2);
}
.page-about .about-hero__subtitle {
  font-family: var(--about-font-body);
  font-size: 1.1rem;
  color: var(--about-gold-light);
  margin: 0 0 1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
}
.page-about .about-hero__desc {
  font-size: 1rem;
  color: var(--about-text-white);
  max-width: 580px;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}
.page-about .about-hero__indicators {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-about .about-hero__indicator {
  display: inline-block;
  padding: 0.3rem 1rem;
  border: 1px solid var(--about-gold);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--about-gold);
  font-family: var(--about-font-heading);
  letter-spacing: 0.04em;
  background: rgba(139, 0, 0, 0.25);
  transition: background var(--about-transition), color var(--about-transition);
}
.page-about .about-hero__indicator:hover {
  background: var(--about-dark-red);
  color: var(--about-gold-light);
}
.page-about .about-hero__visual {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-about .about-hero__img {
  max-width: 100%;
  height: auto;
  width: 320px;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.15);
  object-fit: cover;
}

/* 分隔色块 */
.page-about .about-divider {
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--about-dark-red), var(--about-gold), var(--about-dark-red));
  opacity: 0.7;
}

/* 卡片区域 */
.page-about .about-cards {
  max-width: var(--max-width, 1200px);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
}
.page-about .about-cards__inner {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* 单张卡片 */
.page-about .about-card {
  background: var(--about-surface);
  border: 1px solid var(--about-gold);
  border-radius: var(--about-radius-card);
  padding: 0;
  overflow: hidden;
  transition: box-shadow var(--about-transition), border-color var(--about-transition);
  display: flex;
  flex-direction: column;
}
.page-about .about-card:hover {
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.25), 0 4px 24px rgba(0, 0, 0, 0.4);
  border-color: var(--about-gold-light);
  animation: about-border-pulse 1.2s ease-in-out 2;
}
@keyframes about-border-pulse {
  0%, 100% { border-color: var(--about-gold); }
  25% { border-color: var(--about-gold-light); }
  50% { border-color: var(--about-gold); }
  75% { border-color: var(--about-red-light); }
}
.page-about .about-card__header {
  background: var(--about-dark-red);
  padding: 0.8rem 1.5rem;
}
.page-about .about-card__title {
  font-family: var(--about-font-heading);
  font-size: 1.6rem;
  color: var(--about-gold);
  margin: 0;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
.page-about .about-card__body {
  padding: 1.5rem 1.5rem 0.8rem;
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--about-text-white);
}
.page-about .about-card__body p {
  margin: 0 0 0.8rem;
}
.page-about .about-card__body p:last-child {
  margin-bottom: 0;
}
.page-about .about-card__links {
  padding: 0.8rem 1.5rem 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}
.page-about .about-card__link {
  color: var(--about-gold);
  text-decoration: none;
  font-family: var(--about-font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  transition: color var(--about-transition), transform var(--about-transition);
  display: inline-flex;
  align-items: center;
}
.page-about .about-card__link:hover {
  color: var(--about-gold-light);
  transform: translateX(3px);
}

/* 联系信息列表 */
.page-about .about-card__contact-note {
  font-size: 0.95rem;
  color: var(--about-text-white);
  margin-bottom: 0.8rem;
}
.page-about .about-card__contact-note--small {
  font-size: 0.82rem;
  color: var(--about-muted);
  margin-top: 0.8rem;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
  padding-top: 0.8rem;
}
.page-about .about-contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.page-about .about-contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.page-about .about-contact-label {
  font-family: var(--about-font-heading);
  font-size: 0.78rem;
  color: var(--about-gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.page-about .about-contact-value {
  font-size: 0.95rem;
  color: var(--about-text-white);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  word-break: break-all;
}
.page-about .about-contact-link {
  color: var(--about-gold-light);
  text-decoration: none;
  border-bottom: 1px dashed rgba(212, 175, 55, 0.3);
  transition: border-color var(--about-transition);
}
.page-about .about-contact-link:hover {
  border-bottom-color: var(--about-gold);
}
.page-about .about-copy-btn {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  font-size: 0.72rem;
  font-family: var(--about-font-heading);
  color: var(--about-gold);
  background: transparent;
  border: 1px solid var(--about-gold);
  border-radius: 4px;
  cursor: pointer;
  transition: background var(--about-transition), color var(--about-transition);
  letter-spacing: 0.04em;
}
.page-about .about-copy-btn:hover {
  background: var(--about-gold);
  color: var(--about-bg-black);
}

/* 合规信息 */
.page-about .about-compliance {
  max-width: var(--max-width, 1200px);
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem;
}
.page-about .about-compliance__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  background: var(--about-surface);
  border: 1px solid var(--about-gold);
  border-radius: var(--about-radius-card);
  padding: 2rem 1.5rem;
  text-align: center;
}
.page-about .about-compliance__icon {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-about .about-compliance__icon img {
  max-width: 100%;
  height: auto;
  width: 100px;
  border-radius: 6px;
  object-fit: contain;
}
.page-about .about-compliance__content {
  flex: 1;
}
.page-about .about-compliance__title {
  font-family: var(--about-font-heading);
  font-size: 1.6rem;
  color: var(--about-gold);
  margin: 0 0 0.6rem;
  letter-spacing: 0.03em;
}
.page-about .about-compliance__text {
  font-size: 0.95rem;
  color: var(--about-text-white);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}
.page-about .about-compliance__text strong {
  color: var(--about-gold);
  font-weight: 600;
}

/* ===== 桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 3rem 2rem 2.5rem;
  }
  .page-about .about-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }
  .page-about .about-hero__text {
    text-align: left;
    flex: 1 1 55%;
  }
  .page-about .about-hero__title {
    font-size: 3.6rem;
  }
  .page-about .about-hero__subtitle {
    font-size: 1.3rem;
  }
  .page-about .about-hero__desc {
    margin-left: 0;
    margin-right: 0;
    font-size: 1.05rem;
  }
  .page-about .about-hero__indicators {
    justify-content: flex-start;
  }
  .page-about .about-hero__visual {
    flex: 0 0 45%;
    justify-content: flex-end;
  }
  .page-about .about-hero__img {
    width: 380px;
  }

  .page-about .about-cards {
    padding: 3rem 2rem 2rem;
  }
  .page-about .about-cards__inner {
    flex-direction: row;
    gap: 2rem;
  }
  .page-about .about-card {
    flex: 1 1 50%;
  }
  .page-about .about-card__title {
    font-size: 1.8rem;
  }
  .page-about .about-card__body {
    font-size: 1rem;
  }

  .page-about .about-contact-item {
    flex-direction: row;
    align-items: baseline;
    gap: 0.6rem;
  }
  .page-about .about-contact-label {
    min-width: 4.5rem;
    font-size: 0.8rem;
  }

  .page-about .about-compliance {
    padding: 1rem 2rem 3.5rem;
  }
  .page-about .about-compliance__inner {
    flex-direction: row;
    text-align: left;
    padding: 2rem 2.5rem;
    gap: 2rem;
  }
  .page-about .about-compliance__icon img {
    width: 120px;
  }
  .page-about .about-compliance__title {
    font-size: 1.8rem;
  }
  .page-about .about-compliance__text {
    margin: 0;
    font-size: 1rem;
  }
}

/* ===== 大桌面 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-about .about-hero__title {
    font-size: 4.2rem;
  }
  .page-about .about-hero__subtitle {
    font-size: 1.5rem;
  }
  .page-about .about-hero__img {
    width: 420px;
  }
  .page-about .about-card__title {
    font-size: 2rem;
  }
}

/* ===== 窄屏安全 ===== */
@media (max-width: 480px) {
  .page-about .about-hero__title {
    font-size: 2rem;
  }
  .page-about .about-hero__subtitle {
    font-size: 1rem;
  }
  .page-about .about-hero__img {
    width: 260px;
  }
  .page-about .about-card__header {
    padding: 0.6rem 1rem;
  }
  .page-about .about-card__title {
    font-size: 1.3rem;
  }
  .page-about .about-card__body {
    padding: 1rem 1rem 0.6rem;
    font-size: 0.9rem;
  }
  .page-about .about-card__links {
    padding: 0.6rem 1rem 1rem;
    flex-direction: column;
    gap: 0.4rem;
  }
  .page-about .about-compliance__inner {
    padding: 1.2rem 1rem;
  }
  .page-about .about-compliance__title {
    font-size: 1.3rem;
  }
}