/* ========== 联系通道专属样式 ========== */
.page-contact {
  --contact-email-size: clamp(1rem, 3.2vw, 1.5rem);
  --contact-stat-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--text-light);
  padding-bottom: 4rem;
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 2.25rem;
}
.page-contact .breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-contact .breadcrumbs a:hover {
  color: var(--accent-cyan);
}
.page-contact .breadcrumbs .breadcrumb-sep {
  opacity: 0.55;
}
.page-contact .breadcrumbs [aria-current="page"] {
  color: var(--accent-orange);
}

/* ===== Hero 联系卡片区 ===== */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 4.5rem;
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -1.25rem -0.5rem -0.75rem;
  z-index: -1;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, rgba(77, 93, 249, 0.07) 0%, transparent 55%),
    radial-gradient(circle at 88% 18%, rgba(0, 229, 204, 0.07), transparent 50%);
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 0.25rem;
  right: 0.75rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 92, 0, 0.16);
}
.page-contact .contact-hero-body {
  padding-right: 0.5rem;
}
.page-contact .contact-kicker {
  margin: 0 0 0.75rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  line-height: 1.6;
}
.page-contact h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--text-light);
}
.page-contact .h1-accent {
  display: block;
  color: var(--accent-orange);
}
.page-contact .contact-lead {
  margin: 0 0 1.5rem;
  max-width: 34em;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.page-contact .email-focus {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius);
  padding: 1rem 1rem 1.05rem;
  margin-bottom: 1.25rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-contact .email-focus:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(77, 93, 249, 0.12);
}
.page-contact .email-focus-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.page-contact .email-focus-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}
.page-contact .email-focus-address {
  color: var(--text-light);
  font-size: var(--contact-email-size);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.page-contact .email-focus-copy {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: transparent;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-contact .email-focus-copy:hover {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
}
.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-contact .contact-hero-image {
  position: relative;
  width: 100%;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}
.page-contact .contact-hero-image::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 48px;
  border-top: 3px solid var(--accent-orange);
  border-left: 3px solid var(--accent-orange);
  border-top-left-radius: var(--radius-lg);
  z-index: 2;
  pointer-events: none;
}
.page-contact .contact-hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels {
  margin-bottom: 4.5rem;
}
.page-contact .contact-section-title {
  margin: 0 0 0.75rem;
  color: var(--text-light);
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
}
.page-contact .contact-section-lead {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.page-contact .channel-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}
.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-contact .channel-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.page-contact .channel-card-email {
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent-blue);
}
.page-contact .channel-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  color: var(--accent-orange);
  background: var(--bg-deep);
}
.page-contact .channel-card-email .channel-icon {
  color: var(--accent-cyan);
  border-color: rgba(77, 93, 249, 0.5);
}
.page-contact .channel-icon .contact-svg {
  width: 20px;
  height: 20px;
}
.page-contact .channel-copy h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--text-light);
}
.page-contact .channel-copy p {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.page-contact .channel-value {
  display: inline-block;
  color: var(--text-light);
  font-size: 1rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 204, 0.3);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.page-contact .channel-value:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ===== 响应承诺 ===== */
.page-contact .contact-response {
  position: relative;
  margin-bottom: 4.5rem;
  padding-top: 0.5rem;
}
.page-contact .speed-lines {
  display: block;
  margin-bottom: 1rem;
}
.page-contact .speed-lines-svg {
  display: block;
  width: 100%;
  height: 36px;
}
.page-contact .speed-lines-svg .speed-line {
  stroke: var(--accent-orange);
  stroke-width: 2;
}
.page-contact .speed-lines-svg .speed-line.blue {
  stroke: var(--accent-blue);
}
.page-contact .speed-lines-svg .speed-line.cyan {
  stroke: var(--accent-cyan);
}
.page-contact .speed-lines-svg .speed-line.dim {
  opacity: 0.45;
}
.page-contact .response-copy p {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 40em;
}
.page-contact .response-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0;
}
.page-contact .response-stat {
  position: relative;
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1rem 0.75rem;
  text-align: center;
}
.page-contact .response-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-orange);
}
.page-contact .response-stat:nth-child(2)::before {
  background: var(--accent-cyan);
}
.page-contact .response-stat:nth-child(3)::before {
  background: var(--accent-blue);
}
.page-contact .stat-num {
  display: block;
  color: var(--accent-orange);
  font-family: var(--font-mono);
  font-size: var(--contact-stat-size);
  font-weight: 700;
  line-height: 1.2;
}
.page-contact .response-stat:nth-child(2) .stat-num {
  color: var(--accent-cyan);
}
.page-contact .response-stat:nth-child(3) .stat-num {
  color: var(--accent-blue);
}
.page-contact .stat-label {
  display: block;
  margin-top: 0.25rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}
.page-contact .response-visual {
  margin-top: 1.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}
.page-contact .response-visual img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ===== 访问引导 ===== */
.page-contact .contact-guide {
  margin-bottom: 2rem;
}
.page-contact .guide-lead {
  margin: 0 0 1.75rem;
  max-width: 46em;
  color: var(--text-muted);
  line-height: 1.8;
}
.page-contact .guide-grid {
  display: grid;
  gap: 1rem;
}
.page-contact .guide-card {
  position: relative;
  display: block;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem 1.25rem;
  overflow: hidden;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-contact .guide-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-orange);
  opacity: 0.7;
}
.page-contact .guide-card:nth-child(2)::after {
  background: var(--accent-cyan);
}
.page-contact .guide-card:nth-child(3)::after {
  background: var(--accent-blue);
}
.page-contact .guide-card:hover {
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-card);
}
.page-contact .guide-index {
  display: inline-block;
  margin-bottom: 0.75rem;
  color: var(--accent-orange);
  font-size: 0.85rem;
}
.page-contact .guide-card:nth-child(2) .guide-index {
  color: var(--accent-cyan);
}
.page-contact .guide-card:nth-child(3) .guide-index {
  color: var(--accent-blue);
}
.page-contact .guide-title {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-light);
  font-size: 1.2rem;
  font-weight: 700;
}
.page-contact .guide-text {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.page-contact .guide-arrow {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent-cyan);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}
.page-contact .guide-card:hover .guide-arrow {
  transform: translateX(4px);
}

/* ===== 桌面与中屏增强 ===== */
@media (min-width: 760px) {
  .page-contact .contact-hero {
    gap: 2rem;
    align-items: stretch;
  }
  .page-contact .contact-hero-image {
    min-height: 320px;
  }
  .page-contact .contact-hero-image img {
    height: 100%;
    min-height: 320px;
  }
  .page-contact .channel-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .channel-card-email {
    grid-column: 1 / -1;
  }
  .page-contact .guide-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: 7fr 5fr;
  }
  .page-contact .contact-hero-body {
    padding-right: 1.5rem;
  }
  .page-contact .response-stats {
    display: flex;
    gap: 1rem;
  }
  .page-contact .response-stat {
    flex: 1;
  }
}