/* ===== 联系入口页 · 专属样式 ===== */
.page-contact {
  --contact-bg-start: #1A1A2E;
  --contact-bg-end: #0F1A2C;
  --contact-card-bg: rgba(255, 255, 255, 0.05);
  --contact-card-border: rgba(255, 255, 255, 0.08);
  --contact-accent-glow: rgba(255, 102, 0, 0.25);
  --contact-radial-pos: 85% 40%;

  background: radial-gradient(ellipse at var(--contact-radial-pos), var(--contact-accent-glow) 0%, transparent 65%),
              linear-gradient(145deg, var(--contact-bg-start), var(--contact-bg-end));
  color: var(--color-text-on-dark);
  padding: 2rem 1.25rem 4rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* --- 面包屑 --- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.page-contact .breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-contact .breadcrumb a:hover {
  color: var(--color-primary);
}

.page-contact .breadcrumb-sep {
  color: rgba(255, 255, 255, 0.2);
  user-select: none;
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* --- Section 1: 联系我们 --- */
.page-contact .contact-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-contact .contact-hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
}

.page-contact .contact-hero h1::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 48px;
  height: 4px;
  border-radius: var(--radius-capsule);
  background: var(--color-primary);
  opacity: 0.6;
}

.page-contact .contact-hero-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin: 0 0 0.25rem;
  line-height: 1.6;
  max-width: 560px;
}

/* --- 联系网格 (左信息 + 右视觉) --- */
.page-contact .contact-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* 联系列表 */
.page-contact .contact-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

.page-contact .contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(4px);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.page-contact .contact-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.page-contact .contact-icon-img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  background: rgba(255, 102, 0, 0.1);
  padding: 0.5rem;
}

.page-contact .contact-icon-em {
  font-size: 2.2rem;
  line-height: 1;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 180, 216, 0.1);
  border-radius: var(--radius-md);
}

.page-contact .contact-item-body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.page-contact .contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.page-contact .contact-value {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  word-break: break-word;
}

.page-contact .contact-email-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
  display: inline-block;
}

.page-contact .contact-email-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.page-contact .contact-email-link:hover {
  color: var(--color-primary-variant);
}

.page-contact .contact-email-link:hover::after {
  transform: scaleX(1);
}

.page-contact .contact-phone {
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  cursor: default;
}

.page-contact .contact-phone:hover {
  color: var(--color-primary);
}

.page-contact .contact-hint {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin: 0.15rem 0 0;
  line-height: 1.4;
}

/* 附注 */
.page-contact .contact-note {
  margin-top: 0.5rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 193, 7, 0.06);
  border-left: 3px solid var(--color-warning);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-contact .contact-note p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- 视觉卡片 (右侧) --- */
.page-contact .contact-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.page-contact .visual-card {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, rgba(255, 102, 0, 0.2), rgba(0, 180, 216, 0.05));
  border: 1px solid rgba(255, 102, 0, 0.15);
}

.page-contact .map-graphic {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  opacity: 0.7;
  mix-blend-mode: screen;
  transition: opacity var(--transition-base);
}

.page-contact .visual-card:hover .map-graphic {
  opacity: 0.9;
}

/* 脉冲环 */
.page-contact .pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.3;
  z-index: 1;
  animation: contact-pulse 2.4s ease-out infinite;
  pointer-events: none;
}

.page-contact .pulse-ring--delay {
  animation-delay: 1.2s;
  background: var(--color-accent);
  opacity: 0.2;
}

@keyframes contact-pulse {
  0% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  50% {
    opacity: 0.25;
  }
  100% {
    transform: scale(3.2);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pulse-ring {
    animation: none;
    opacity: 0.15;
    transform: scale(1.2);
  }
}

.page-contact .visual-label {
  position: absolute;
  bottom: -1.8rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
  white-space: nowrap;
  z-index: 3;
}

/* --- Section 2: 常见联系方式 --- */
.page-contact .contact-quick {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-contact .contact-quick h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
}

.page-contact .contact-quick h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 36px;
  height: 3px;
  border-radius: var(--radius-capsule);
  background: var(--color-accent);
  opacity: 0.5;
}

.page-contact .section-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

.page-contact .quick-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.25rem;
}

.page-contact .quick-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.page-contact .quick-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.page-contact .quick-icon {
  font-size: 1.6rem;
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 102, 0, 0.1);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.page-contact .quick-card--email .quick-icon {
  background: rgba(255, 102, 0, 0.12);
  color: var(--color-primary);
}

.page-contact .quick-card--phone .quick-icon {
  background: rgba(0, 180, 216, 0.12);
  color: var(--color-accent);
}

.page-contact .quick-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.page-contact .quick-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.page-contact .quick-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  word-break: break-word;
}

.page-contact .quick-card--email .quick-value {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-contact .quick-card--email .quick-value:hover {
  color: var(--color-primary-variant);
}

.page-contact .quick-card--phone .quick-value {
  transition: color var(--transition-fast);
  cursor: default;
}

.page-contact .quick-card--phone .quick-value:hover {
  color: var(--color-accent);
}

/* 相关链接 */
.page-contact .related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-top: 0.75rem;
  padding: 0.85rem 1.25rem;
  background: rgba(0, 180, 216, 0.04);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 180, 216, 0.08);
}

.page-contact .related-heading {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.page-contact .related-link {
  font-size: 0.88rem;
  color: var(--color-accent);
  text-decoration: none;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 180, 216, 0.08);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.page-contact .related-link:hover {
  background: var(--color-accent);
  color: var(--color-text-on-dark);
}

/* --- 滚动显现动画 --- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.page-contact [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

.page-contact [data-reveal-left] {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.6s ease-out 0.15s, transform 0.6s ease-out 0.15s;
}

.page-contact [data-reveal-left].revealed {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal],
  .page-contact [data-reveal-left] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- 桌面端 ≥ 768px --- */
@media (min-width: 768px) {
  .page-contact {
    padding: 2.5rem 2rem 5rem;
    gap: 4rem;
  }

  .page-contact .contact-hero h1 {
    font-size: 3rem;
  }

  .page-contact .contact-hero h1::after {
    width: 64px;
    height: 5px;
  }

  .page-contact .contact-grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .page-contact .contact-list {
    gap: 1.25rem;
  }

  .page-contact .contact-item {
    padding: 1.25rem 1.5rem;
  }

  .page-contact .contact-visual {
    align-self: center;
    flex-shrink: 0;
    margin-left: auto;
  }

  .page-contact .visual-card {
    width: 240px;
    height: 240px;
  }

  .page-contact .map-graphic {
    width: 240px;
    height: 240px;
  }

  .page-contact .visual-label {
    bottom: -2rem;
    font-size: 0.75rem;
  }

  .page-contact .contact-quick h2 {
    font-size: 1.8rem;
  }

  .page-contact .quick-grid {
    flex-direction: row;
    gap: 1.25rem;
  }

  .page-contact .quick-card {
    flex: 1;
    max-width: 340px;
    padding: 1.1rem 1.5rem;
  }

  .page-contact .related-links {
    padding: 1rem 1.5rem;
  }
}

/* --- 大桌面端 ≥ 1024px --- */
@media (min-width: 1024px) {
  .page-contact {
    padding: 3rem 2.5rem 6rem;
    gap: 5rem;
  }

  .page-contact .contact-hero h1 {
    font-size: 3.5rem;
  }

  .page-contact .contact-grid {
    gap: 4rem;
  }

  .page-contact .contact-list {
    max-width: 640px;
  }

  .page-contact .visual-card {
    width: 280px;
    height: 280px;
  }

  .page-contact .map-graphic {
    width: 280px;
    height: 280px;
  }

  .page-contact .pulse-ring {
    width: 48px;
    height: 48px;
    margin: -24px 0 0 -24px;
  }

  .page-contact .contact-quick {
    gap: 1.25rem;
  }

  .page-contact .quick-grid {
    gap: 1.5rem;
  }

  .page-contact .quick-card {
    padding: 1.25rem 1.75rem;
  }
}

/* --- 极窄屏安全 --- */
@media (max-width: 374px) {
  .page-contact {
    padding: 1.5rem 0.85rem 3rem;
    gap: 2rem;
  }

  .page-contact .contact-hero h1 {
    font-size: 1.75rem;
  }

  .page-contact .contact-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
  }

  .page-contact .contact-icon-img {
    width: 64px;
    height: 64px;
  }

  .page-contact .contact-icon-em {
    width: 44px;
    height: 44px;
    font-size: 1.6rem;
  }

  .page-contact .visual-card {
    width: 160px;
    height: 160px;
  }

  .page-contact .map-graphic {
    width: 160px;
    height: 160px;
  }

  .page-contact .quick-card {
    padding: 0.85rem 1rem;
  }
}