/* ===== 联系入口 页面专属样式 ===== */
.page-contact {
  --contact-bg-card: #F5F7FA;
  --contact-bg-address: #0A192F;
  --contact-border-gold: #FFD700;
  --contact-text-light: #FFFFFF;
  --contact-text-dark: #1A1A2E;
  --contact-accent: #2196F3;
  --contact-shadow: 0 4px 0 rgba(255, 215, 0, 0.25), 0 8px 24px rgba(0,0,0,0.08);
  --contact-radius: 12px;
  --contact-gap: 1.5rem;

  display: block;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 1rem var(--container-pad, 1.5rem) 3rem;
  font-family: var(--ff-primary, Inter, system-ui, sans-serif);
  color: var(--clr-neutral-900, #1A1A2E);
}

/* 面包屑 */
.contact__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #6B7A8D;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #E0E6ED;
}

.contact__breadcrumb a {
  color: var(--clr-primary-500, #2196F3);
  text-decoration: none;
  transition: color 0.2s;
}

.contact__breadcrumb a:hover {
  color: var(--clr-primary-700, #1A3A6B);
  text-decoration: underline;
}

.contact__breadcrumb-sep {
  color: #B0BEC5;
  user-select: none;
}

/* 英雄区 */
.contact__hero {
  margin-bottom: 2.5rem;
  position: relative;
}

.contact__hero-title {
  font-size: var(--fs-heading-lg, clamp(2.2rem, 5vw, 3rem));
  font-weight: var(--fw-heading, 800);
  color: var(--clr-primary-900, #0A192F);
  margin: 0 0 0.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
}

.contact__hero-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--clr-accent, #FFD700);
  margin-top: 0.5rem;
  border-radius: 2px;
}

.contact__hero-desc {
  font-size: 1.1rem;
  line-height: var(--lh-body, 1.6);
  color: #4B5E77;
  max-width: 640px;
  margin: 1rem 0 0;
}

/* 联系方式网格 */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  margin-bottom: 2.5rem;
}

.contact__stack {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

/* 卡片通用 */
.contact__card {
  border-radius: var(--contact-radius);
  padding: 1.5rem;
  background: var(--contact-bg-card);
  box-shadow: var(--contact-shadow);
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #E8EDF2;
}

.contact__card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 rgba(255, 215, 0, 0.3), 0 12px 32px rgba(0,0,0,0.12);
}

.contact__card .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--clr-accent, #FFD700);
  color: var(--clr-accent, #FFD700);
  background: transparent;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

/* 地址卡片 */
.contact__card--address {
  background: var(--contact-bg-address);
  color: var(--contact-text-light);
  border: 1px solid rgba(255, 215, 0, 0.2);
  overflow: hidden;
}

.contact__card--address .tag {
  border-color: var(--clr-accent, #FFD700);
  color: var(--clr-accent, #FFD700);
}

.contact__card--address .contact__card-heading {
  color: var(--contact-text-light);
  margin-bottom: 0.75rem;
}

.contact__address-text {
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0 0 1rem;
  color: #D0D8E8;
  font-weight: 400;
}

.contact__map-wrap {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid rgba(255, 215, 0, 0.15);
  background: #0D2240;
}

.contact__map-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 400 / 250;
}

.contact__card--address .contact__note {
  color: #9AB0CC;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 215, 0, 0.12);
  padding-top: 0.75rem;
  margin: 0;
}

/* 邮件卡片 */
.contact__card--email {
  border-top: 4px solid var(--clr-accent, #FFD700);
}

.contact__icon {
  display: block;
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin-bottom: 0.75rem;
  opacity: 0.9;
}

.contact__card-heading {
  font-size: var(--fs-heading-md, clamp(1.2rem, 2.5vw, 1.5rem));
  font-weight: var(--fw-heading, 800);
  color: var(--clr-primary-900, #0A192F);
  margin: 0 0 0.75rem;
  line-height: 1.2;
}

.contact__action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.25s, transform 0.2s;
  margin-bottom: 0.75rem;
  word-break: break-all;
}

.contact__action:hover {
  transform: scale(1.02);
}

.btn--accent {
  background: var(--clr-accent, #FFD700);
  color: var(--clr-primary-900, #0A192F);
  border: 2px solid var(--clr-accent, #FFD700);
}

.btn--accent:hover {
  background: var(--clr-accent-light, #FFE082);
  border-color: var(--clr-accent-light, #FFE082);
}

.btn--primary {
  background: var(--clr-primary-500, #2196F3);
  color: #FFFFFF;
  border: 2px solid var(--clr-primary-500, #2196F3);
}

.btn--primary:hover {
  background: var(--clr-primary-700, #1A3A6B);
  border-color: var(--clr-primary-700, #1A3A6B);
}

.contact__note {
  font-size: 0.8rem;
  color: #6B7A8D;
  line-height: 1.5;
  margin: 0;
}

/* 电话卡片 */
.contact__card--phone {
  border-top: 4px solid var(--clr-primary-500, #2196F3);
}

.contact__card--phone .contact__action {
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

/* 服务说明 */
.contact__services {
  margin-bottom: 2.5rem;
  padding: 2rem 0;
  border-top: 2px solid #E0E6ED;
  border-bottom: 2px solid #E0E6ED;
}

.contact__services-title {
  font-size: var(--fs-heading-md, clamp(1.5rem, 3vw, 2rem));
  font-weight: var(--fw-heading, 800);
  color: var(--clr-primary-900, #0A192F);
  margin: 0 0 1.5rem;
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid var(--clr-accent, #FFD700);
}

.contact__services-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.contact__services-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--clr-neutral-100, #F5F7FA);
  border-radius: 8px;
  border-left: 3px solid var(--clr-accent, #FFD700);
  transition: background 0.25s;
}

.contact__services-item:hover {
  background: #EEF2F7;
}

.contact__services-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-accent, #FFD700);
  line-height: 1;
  flex-shrink: 0;
  min-width: 2rem;
  font-variant-numeric: tabular-nums;
}

.contact__services-body {
  flex: 1;
}

.contact__services-label {
  display: block;
  font-weight: 700;
  color: var(--clr-primary-900, #0A192F);
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.contact__services-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #4B5E77;
  margin: 0;
}

/* 内部链接 */
.contact__internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn--outline {
  background: transparent;
  color: var(--clr-primary-500, #2196F3);
  border: 2px solid var(--clr-primary-500, #2196F3);
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.25s, color 0.25s;
}

.btn--outline:hover {
  background: var(--clr-primary-500, #2196F3);
  color: #FFFFFF;
}

/* ===== 响应式 - 桌面端 ===== */
@media (min-width: 768px) {
  .page-contact {
    padding: 2rem var(--container-pad, 1.5rem) 4rem;
  }

  .contact__breadcrumb {
    font-size: 0.9rem;
    margin-bottom: 2rem;
  }

  .contact__hero {
    margin-bottom: 3rem;
  }

  .contact__hero-title::after {
    width: 80px;
    height: 5px;
  }

  .contact__grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 2rem;
  }

  .contact__stack {
    gap: 2rem;
  }

  .contact__card {
    padding: 2rem;
  }

  .contact__card--address {
    display: flex;
    flex-direction: column;
  }

  .contact__address-text {
    font-size: 1.15rem;
  }

  .contact__map-wrap {
    margin-bottom: 1.25rem;
  }

  .contact__icon {
    width: 72px;
    height: 72px;
  }

  .contact__card--phone .contact__action {
    font-size: 1.35rem;
  }

  .contact__services-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .contact__services-item {
    flex-direction: column;
    padding: 1.5rem;
  }

  .contact__services-num {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
  }

  .contact__internal-links {
    gap: 1rem;
    justify-content: flex-start;
  }

  .btn--outline {
    padding: 0.7rem 1.5rem;
    font-size: 0.95rem;
  }
}

/* ===== 大桌面端微调 ===== */
@media (min-width: 1024px) {
  .contact__grid {
    gap: 2.5rem;
  }

  .contact__stack {
    gap: 2.5rem;
  }

  .contact__card--address {
    padding: 2.5rem;
  }

  .contact__map-wrap {
    border-radius: 10px;
  }
}

/* ===== 窄屏安全约束 ===== */
@media (max-width: 480px) {
  .contact__hero-title {
    font-size: 1.8rem;
  }

  .contact__card {
    padding: 1.25rem;
  }

  .contact__action {
    width: 100%;
    justify-content: center;
    text-align: center;
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
  }

  .contact__services-item {
    padding: 1rem;
  }

  .contact__internal-links {
    flex-direction: column;
  }

  .btn--outline {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}