/* ===== 联系页专属样式 ===== */
.page-contact {
  position: relative;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  color: var(--color-text, #E8ECF1);
  font-family: var(--font-primary, 'Inter', 'Helvetica Neue', sans-serif);
}

/* 面包屑导航 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-secondary, #A0B0C0);
  letter-spacing: 0.01em;
}

.page-contact .breadcrumb-link {
  color: var(--color-text-secondary, #A0B0C0);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--color-gold, #D4AF37);
  outline: none;
}

.page-contact .breadcrumb-sep {
  color: var(--color-border, #2C4058);
  font-size: 0.75rem;
}

.page-contact .breadcrumb-current {
  color: var(--color-text, #E8ECF1);
  font-weight: 500;
}

/* 页面标题区 */
.page-contact .contact-hero {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border, #2C4058);
}

.page-contact .contact-hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-gold, #D4AF37);
  margin: 0 0 0.75rem;
}

.page-contact .contact-hero-desc {
  font-size: 1.0625rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-secondary, #A0B0C0);
  max-width: 36em;
  margin: 0;
}

/* 三列卡片网格 */
.page-contact .contact-channels {
  margin-bottom: 3rem;
}

.page-contact .channels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--color-card, #142A44);
  border-radius: 0.75rem;
  padding: 1.75rem 1.5rem 1.5rem;
  border-left: 4px solid var(--color-border, #2C4058);
  box-shadow: var(--shadow-card, 0 4px 24px rgba(0, 0, 0, 0.3));
  cursor: default;
  transition: transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
              box-shadow 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  outline: none;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}

.page-contact .channel-card:focus-visible {
  outline: 2px solid var(--color-gold, #D4AF37);
  outline-offset: 2px;
}

/* 卡片边框色 — 电话金色 */
.page-contact .channel-card--phone {
  border-left-color: var(--color-gold, #D4AF37);
}

.page-contact .channel-card--phone:hover,
.page-contact .channel-card--phone:focus-visible {
  border-left-color: #e6c34d;
}

/* 卡片边框色 — 邮件蓝色 */
.page-contact .channel-card--email {
  border-left-color: #4A90D9;
}

.page-contact .channel-card--email:hover,
.page-contact .channel-card--email:focus-visible {
  border-left-color: #6aabea;
}

/* 卡片边框色 — 地址灰色 */
.page-contact .channel-card--address {
  border-left-color: var(--color-text-secondary, #A0B0C0);
}

.page-contact .channel-card--address:hover,
.page-contact .channel-card--address:focus-visible {
  border-left-color: #c0d0e0;
}

.page-contact .channel-icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  margin-bottom: 1rem;
  border-radius: 0.25rem;
  flex-shrink: 0;
  display: block;
  background: rgba(255, 255, 255, 0.04);
  padding: 4px;
}

.page-contact .channel-label {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text, #E8ECF1);
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}

.page-contact .channel-value {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text, #E8ECF1);
  margin: 0 0 0.25rem;
  word-break: break-all;
  font-family: var(--font-mono, 'SFMono-Regular', 'Menlo', 'Monaco', 'Consolas', monospace);
  letter-spacing: 0.01em;
}

.page-contact .channel-note {
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--color-text-secondary, #A0B0C0);
  margin: 0;
  line-height: 1.4;
}

/* FAQ 引导区 — 金色边框强调 */
.page-contact .faq-guide {
  margin-bottom: 2.5rem;
}

.page-contact .faq-guide-inner {
  background: var(--color-card, #142A44);
  border-radius: 0.75rem;
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--color-gold-dim, rgba(212, 175, 55, 0.15));
  border-left-width: 6px;
  border-left-color: var(--color-gold, #D4AF37);
  box-shadow: var(--shadow-card, 0 4px 24px rgba(0, 0, 0, 0.3));
  transition: border-left-color 0.3s ease;
}

.page-contact .faq-guide-inner:hover {
  border-left-color: #e6c34d;
}

.page-contact .faq-guide-heading {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gold, #D4AF37);
  margin: 0 0 0.625rem;
  letter-spacing: -0.01em;
}

.page-contact .faq-guide-text {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-secondary, #A0B0C0);
  margin: 0 0 1rem;
  max-width: 32em;
}

.page-contact .faq-guide-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-gold, #D4AF37);
  text-decoration: none;
  padding: 0.375rem 0.75rem 0.375rem 0;
  border-radius: 0.25rem;
  transition: color 0.2s ease, background 0.2s ease;
}

.page-contact .faq-guide-link:hover,
.page-contact .faq-guide-link:focus-visible {
  color: #e6c34d;
  background: var(--color-gold-dim, rgba(212, 175, 55, 0.08));
  padding-left: 0.75rem;
  text-decoration: none;
  outline: none;
}

.page-contact .faq-guide-link:focus-visible {
  outline: 2px solid var(--color-gold, #D4AF37);
  outline-offset: 2px;
}

.page-contact .arrow-symbol {
  font-size: 1.125rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.page-contact .faq-guide-link:hover .arrow-symbol,
.page-contact .faq-guide-link:focus-visible .arrow-symbol {
  transform: translateX(4px);
}

/* 合作与反馈区 */
.page-contact .feedback-section {
  margin-bottom: 2.5rem;
  padding: 1.75rem 1.5rem;
  background: transparent;
  border-radius: 0.75rem;
  border: 1px solid var(--color-border, #2C4058);
}

.page-contact .feedback-heading {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text, #E8ECF1);
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

.page-contact .feedback-text {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-secondary, #A0B0C0);
  margin: 0 0 0.75rem;
  max-width: 36em;
}

.page-contact .feedback-note {
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.5;
  color: var(--color-text-secondary, #A0B0C0);
  margin: 0;
  padding: 0.75rem 1rem;
  background: rgba(212, 175, 55, 0.06);
  border-radius: 0.5rem;
  border-left: 3px solid var(--color-gold-dim, rgba(212, 175, 55, 0.3));
}

/* 背景装饰地图 */
.page-contact .bg-map {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 50%;
  max-width: 540px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.06;
  overflow: hidden;
  border-radius: 0.75rem;
}

.page-contact .bg-map-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* 确保内容在装饰图之上 */
.page-contact .breadcrumb,
.page-contact .contact-hero,
.page-contact .contact-channels,
.page-contact .faq-guide,
.page-contact .feedback-section {
  position: relative;
  z-index: 1;
}

/* 辅助类：屏幕阅读器专用 */
.page-contact .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== 响应式：桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-contact {
    padding: 2.5rem 2rem 4rem;
  }

  .page-contact .breadcrumb {
    font-size: 0.875rem;
    margin-bottom: 2.5rem;
  }

  .page-contact .contact-hero {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
  }

  .page-contact .contact-hero-title {
    font-size: 3rem;
  }

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

  .page-contact .channels-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-contact .channel-card {
    padding: 2rem 1.75rem 1.75rem;
    border-left-width: 4px;
  }

  .page-contact .channel-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 1.25rem;
  }

  .page-contact .channel-label {
    font-size: 1.25rem;
  }

  .page-contact .channel-value {
    font-size: 1.0625rem;
  }

  .page-contact .faq-guide-inner {
    padding: 2rem 2rem 1.75rem;
    border-left-width: 8px;
  }

  .page-contact .faq-guide-heading {
    font-size: 1.375rem;
  }

  .page-contact .faq-guide-text {
    font-size: 1.0625rem;
  }

  .page-contact .feedback-section {
    padding: 2rem 2rem;
  }

  .page-contact .feedback-heading {
    font-size: 1.375rem;
  }

  .page-contact .feedback-text {
    font-size: 1.0625rem;
  }

  .page-contact .bg-map {
    width: 40%;
    max-width: 480px;
    opacity: 0.07;
  }
}

/* ===== 桌面端进一步优化 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-contact {
    padding: 3rem 2.5rem 5rem;
  }

  .page-contact .contact-hero-title {
    font-size: 3.5rem;
  }

  .page-contact .channels-grid {
    gap: 2rem;
  }

  .page-contact .channel-card {
    padding: 2.25rem 2rem 2rem;
  }

  .page-contact .faq-guide-inner {
    padding: 2.25rem 2.5rem 2rem;
  }

  .page-contact .bg-map {
    width: 35%;
    max-width: 420px;
    opacity: 0.06;
  }
}