.page-contact {
  --contact-bg-card: rgba(255, 255, 255, 0.06);
  --contact-bg-card-solid: #ffffff;
  --contact-text-on-card: #0A1F44;
  --contact-gap: 2rem;
  --contact-radius-card: 8px;
  --contact-border-glow: rgba(212, 175, 55, 0.35);
  --contact-input-bg: #f8f9fa;
  --contact-shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);

  background-color: var(--color-primary, #0A1F44);
  padding: var(--spacing-xl, 3rem) 0 var(--spacing-2xl, 5rem);
  color: var(--color-text-light, #ffffff);
  font-family: var(--font-body, 'Inter', sans-serif);
}

/* 容器复用共享类 .container，此处仅作微调 */
.page-contact .container {
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 0 var(--spacing-md, 1rem);
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-small, 0.8125rem);
  margin-bottom: var(--spacing-lg, 2rem);
  color: rgba(255, 255, 255, 0.6);
}

.page-contact .breadcrumb__link {
  color: var(--color-secondary, #D4AF37);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-contact .breadcrumb__link:hover {
  color: var(--color-accent, #E63946);
}

.page-contact .breadcrumb__sep {
  color: rgba(255, 255, 255, 0.3);
}

.page-contact .breadcrumb__current {
  color: rgba(255, 255, 255, 0.8);
}

/* 页眉区 */
.page-contact .contact-hero {
  margin-bottom: var(--spacing-xl, 3rem);
  border-left: 4px solid var(--color-secondary, #D4AF37);
  padding-left: var(--spacing-lg, 2rem);
}

.page-contact .contact-hero__title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: var(--fs-h1, clamp(2.5rem, 5.5vw, 4.5rem));
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--color-secondary, #D4AF37);
  margin: 0 0 var(--spacing-sm, 0.5rem);
  text-transform: uppercase;
}

.page-contact .contact-hero__subtitle {
  font-size: var(--fs-body, 1rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  margin: 0;
}

/* 网格布局：移动端纵向，桌面双栏 */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

/* 卡片通用 */
.page-contact .contact-card {
  background: var(--contact-bg-card);
  backdrop-filter: blur(4px);
  border: 1px solid var(--color-border, rgba(212, 175, 55, 0.3));
  border-radius: var(--contact-radius-card);
  padding: var(--spacing-lg, 2rem);
  box-shadow: var(--contact-shadow-card);
  transition: border-color var(--transition-smooth, 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94));
}

.page-contact .contact-card:hover {
  border-color: rgba(212, 175, 55, 0.6);
}

.page-contact .contact-card__title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: var(--fs-h3, clamp(1.25rem, 2.5vw, 2rem));
  color: var(--color-secondary, #D4AF37);
  margin: 0 0 var(--spacing-md, 1rem);
  letter-spacing: -0.5px;
  position: relative;
  display: inline-block;
}

.page-contact .contact-card__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent, #E63946);
  margin-top: 6px;
  border-radius: 2px;
}

/* 联系信息卡片 */
.page-contact .contact-info-card {
  position: relative;
}

.page-contact .contact-info-card__icon-wrap {
  position: absolute;
  top: var(--spacing-lg, 2rem);
  right: var(--spacing-lg, 2rem);
  opacity: 0.7;
}

.page-contact .contact-info-card__icon {
  display: block;
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: 4px;
}

.page-contact .contact-details {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md, 1rem);
  display: grid;
  gap: var(--spacing-md, 1rem);
}

.page-contact .contact-details__item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-bottom: var(--spacing-sm, 0.5rem);
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}

.page-contact .contact-details__item:last-child {
  border-bottom: none;
}

.page-contact .contact-details__label {
  font-size: var(--fs-small, 0.8125rem);
  font-weight: var(--fw-bold, 700);
  color: var(--color-accent, #E63946);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.page-contact .contact-details__value {
  font-size: var(--fs-h4, clamp(1rem, 1.8vw, 1.5rem));
  font-weight: var(--fw-body, 400);
  color: var(--color-text-light, #ffffff);
  word-break: break-word;
}

.page-contact .contact-details__value--link {
  color: var(--color-secondary, #D4AF37);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s ease);
}

.page-contact .contact-details__value--link:hover {
  color: var(--color-accent, #E63946);
  text-decoration: underline;
}

.page-contact .contact-info-card__note {
  font-size: var(--fs-small, 0.8125rem);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
  margin: var(--spacing-md, 1rem) 0 0;
  padding-top: var(--spacing-sm, 0.5rem);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.page-contact .contact-info-card__note a {
  color: var(--color-secondary, #D4AF37);
  text-decoration: underline;
}

.page-contact .contact-info-card__note a:hover {
  color: var(--color-accent, #E63946);
}

/* 表单卡片 */
.page-contact .contact-form-card__desc {
  font-size: var(--fs-body, 1rem);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.7);
  margin: -0.5rem 0 var(--spacing-lg, 2rem);
}

.page-contact .contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md, 1rem);
}

.page-contact .form-group--full {
  grid-column: 1 / -1;
}

.page-contact .form-group__label {
  display: block;
  font-size: var(--fs-small, 0.8125rem);
  font-weight: var(--fw-bold, 700);
  color: var(--color-text-light, #ffffff);
  margin-bottom: 0.3rem;
  letter-spacing: 0.3px;
}

.page-contact .form-group__required {
  color: var(--color-accent, #E63946);
}

.page-contact .form-group__input,
.page-contact .form-group__textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-size: var(--fs-body, 1rem);
  font-family: var(--font-body, 'Inter', sans-serif);
  color: var(--contact-text-on-card, #0A1F44);
  background: var(--contact-input-bg, #f8f9fa);
  border: 2px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--border-radius, 4px);
  outline: none;
  transition: border-color var(--transition-fast, 0.2s ease), box-shadow var(--transition-fast, 0.2s ease);
  box-sizing: border-box;
}

.page-contact .form-group__input:focus,
.page-contact .form-group__textarea:focus {
  border-color: var(--color-secondary, #D4AF37);
  box-shadow: 0 0 0 3px var(--contact-border-glow);
}

.page-contact .form-group__input::placeholder,
.page-contact .form-group__textarea::placeholder {
  color: rgba(44, 62, 80, 0.4);
}

.page-contact .form-group__textarea {
  resize: vertical;
  min-height: 100px;
}

.page-contact .form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  padding-top: var(--spacing-sm, 0.5rem);
}

.page-contact .form-actions__btn {
  background: var(--color-secondary, #D4AF37);
  color: var(--color-primary, #0A1F44);
  border: none;
  padding: 0.75rem 2.5rem;
  font-size: var(--fs-body, 1rem);
  font-weight: var(--fw-bold, 700);
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius, 4px);
  cursor: pointer;
  transition: background var(--transition-fast, 0.2s ease), transform var(--transition-fast, 0.2s ease);
  position: relative;
  overflow: hidden;
}

.page-contact .form-actions__btn:hover {
  background: var(--color-accent, #E63946);
  color: #ffffff;
  transform: translateY(-2px);
}

.page-contact .form-actions__btn:active {
  transform: translateY(0);
}

/* 额外链接区 */
.page-contact .contact-extra {
  margin-top: var(--spacing-md, 1rem);
  padding: var(--spacing-md, 1rem) var(--spacing-lg, 2rem);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--contact-radius-card);
  border: 1px dashed rgba(212, 175, 55, 0.2);
}

.page-contact .contact-extra__text {
  font-size: var(--fs-small, 0.8125rem);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  line-height: 1.6;
}

.page-contact .contact-extra__link {
  color: var(--color-secondary, #D4AF37);
  text-decoration: underline;
  font-weight: var(--fw-bold, 700);
  transition: color var(--transition-fast, 0.2s ease);
}

.page-contact .contact-extra__link:hover {
  color: var(--color-accent, #E63946);
}

/* 地图卡片 */
.page-contact .map-container {
  border-radius: calc(var(--contact-radius-card) - 4px);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
  line-height: 0;
}

.page-contact .map-container__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-contact .map-card__note {
  font-size: var(--fs-small, 0.8125rem);
  color: rgba(255, 255, 255, 0.6);
  margin: var(--spacing-md, 1rem) 0 0;
  line-height: 1.5;
  padding-top: var(--spacing-sm, 0.5rem);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== 桌面端（宽度 ≥ 768px） ===== */
@media (min-width: 768px) {
  .page-contact {
    padding: var(--spacing-2xl, 5rem) 0;
  }

  .page-contact .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl, 3rem);
    align-items: start;
  }

  .page-contact .contact-left {
    display: flex;
    flex-direction: column;
    gap: var(--contact-gap);
  }

  .page-contact .contact-right {
    position: sticky;
    top: calc(var(--header-height, 0px) + 2rem);
  }

  .page-contact .contact-card {
    padding: var(--spacing-xl, 3rem);
  }

  .page-contact .contact-hero__title {
    font-size: var(--fs-h1, clamp(2.5rem, 5.5vw, 4.5rem));
  }

  .page-contact .map-container__img {
    aspect-ratio: 3 / 2;
  }

  .page-contact .contact-details__value {
    font-size: var(--fs-h3, clamp(1.25rem, 2.5vw, 2rem));
  }

  .page-contact .contact-form-card__desc {
    font-size: var(--fs-body, 1rem);
  }
}

/* ===== 桌面大屏（宽度 ≥ 1024px） ===== */
@media (min-width: 1024px) {
  .page-contact .contact-grid {
    gap: 4rem;
  }

  .page-contact .contact-card {
    padding: var(--spacing-xl, 3rem) var(--spacing-2xl, 5rem);
  }

  .page-contact .contact-info-card__icon-wrap {
    top: var(--spacing-xl, 3rem);
    right: var(--spacing-2xl, 5rem);
  }

  .page-contact .contact-hero__subtitle {
    font-size: 1.125rem;
  }
}