/* ===== 页面作用域 ===== */
.page-contact {
  --page-gutter: clamp(20px, 4vw, 48px);
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(720px 360px at 88% 0%, rgba(23, 48, 77, 0.55), transparent 72%),
    linear-gradient(180deg, var(--ink-base) 0%, #0d1e33 100%);
  color: var(--text-primary);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact ::selection {
  background: var(--neon-strike);
  color: var(--ink-base);
}

/* ===== 共享容器 ===== */
.page-contact .contact-breadcrumb,
.page-contact .contact-hero,
.page-contact .contact-channels,
.page-contact .contact-urgent,
.page-contact .contact-location,
.page-contact .contact-partnership {
  max-width: var(--shell-width);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

/* ===== 面包屑 ===== */
.page-contact .contact-breadcrumb {
  padding-top: clamp(20px, 4vw, 40px);
}

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(40px, 6vw, 72px);
  position: relative;
}

.page-contact .contact-hero-main {
  position: relative;
  z-index: 2;
}

.page-contact .contact-hero .display-title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  transform: skewX(-2deg);
}

.page-contact .contact-hero-lead {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 600;
  color: var(--neon-strike);
}

.page-contact .contact-hero-lead::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--neon-strike);
  flex: none;
}

.page-contact .contact-hero-desc {
  margin: 0 0 28px;
  max-width: 54ch;
  color: var(--text-secondary);
  line-height: 1.75;
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* hero 坐标图例 */
.page-contact .contact-hero-locator {
  position: relative;
  min-height: 240px;
  background: var(--ink-panel);
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .contact-hero-locator::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-border) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.4;
}

.page-contact .contact-hero-locator::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 40%, rgba(183, 255, 0, 0.14) 40%, rgba(183, 255, 0, 0.14) 44%, transparent 44%);
}

.page-contact .locator-axis {
  position: absolute;
  z-index: 2;
  font-family: var(--font-data);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  opacity: 0.6;
}

.page-contact .locator-x {
  right: 16px;
  bottom: 10px;
}

.page-contact .locator-y {
  left: 12px;
  top: 10px;
}

.page-contact .locator-point {
  position: absolute;
  z-index: 2;
  top: 58%;
  left: 44%;
  width: 12px;
  height: 12px;
  background: var(--neon-strike);
  transform: rotate(45deg);
  box-shadow: 0 0 16px rgba(183, 255, 0, 0.5);
}

.page-contact .locator-node {
  position: absolute;
  z-index: 2;
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--text-secondary);
  border: 1px solid var(--line-border);
  padding: 2px 6px;
  background: rgba(11, 26, 44, 0.85);
}

.page-contact .locator-node-a {
  top: 18%;
  right: 16%;
}

.page-contact .locator-node-b {
  bottom: 16%;
  left: 10%;
}

.page-contact .locator-caption {
  position: absolute;
  z-index: 2;
  bottom: 12px;
  left: 14px;
  padding: 4px 10px;
  font-size: 0.75rem;
  color: var(--neon-strike);
  background: rgba(11, 26, 44, 0.72);
  border-left: 2px solid var(--neon-strike);
}

/* ===== 频道区 ===== */
.page-contact .contact-channels {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-contact .section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.page-contact .section-heading .section-title {
  margin: 8px 0 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .channels-note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--neon-strike);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-contact .channels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  min-height: 200px;
  padding: clamp(22px, 3vw, 30px);
  background: var(--ink-panel);
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px) rotate(-0.4deg);
  border-color: var(--neon-strike);
  background: var(--ink-raised);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1.3;
}

.page-contact .channel-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.65;
}

.page-contact .channel-index {
  position: absolute;
  top: 14px;
  right: 22px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--neon-strike);
  border: 1px solid var(--line-border);
  padding: 3px 8px;
  transform: skewX(-4deg);
  background: rgba(11, 26, 44, 0.6);
}

.page-contact .channel-value {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 44px;
  padding-bottom: 4px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 2px solid var(--neon-strike);
  overflow-wrap: anywhere;
  transition: color var(--transition-fast);
}

.page-contact .channel-value:hover,
.page-contact .channel-value:focus-visible {
  color: var(--neon-strike);
}

.page-contact .channel-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 1rem;
  color: var(--neon-strike);
}

.page-contact .channel-stat .data-figure {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-data);
}

.page-contact .channel-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 6px 12px;
  font-size: 0.85rem;
  color: var(--neon-strike);
  background: rgba(183, 255, 0, 0.12);
  border-radius: 2px;
}

/* ===== 访问问题紧急联络 ===== */
.page-contact .contact-urgent {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-contact .urgent-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: clamp(24px, 4vw, 44px);
  background: var(--ink-panel);
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-contact .urgent-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--neon-strike);
}

.page-contact .urgent-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-contact .urgent-content h2 {
  margin: 8px 0 14px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
}

.page-contact .urgent-content p {
  margin: 0 0 12px;
  max-width: 54ch;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-contact .urgent-email {
  display: inline-block;
  margin: 6px 0 16px;
  padding-bottom: 6px;
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
  font-weight: 700;
  color: var(--neon-strike);
  text-decoration: none;
  border-bottom: 3px solid currentColor;
  overflow-wrap: anywhere;
  min-height: 44px;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.page-contact .urgent-email:hover,
.page-contact .urgent-email:focus-visible {
  transform: translateY(-2px);
  opacity: 0.88;
}

.page-contact .urgent-note {
  font-size: 0.95rem;
}

.page-contact .urgent-image {
  width: min(280px, 100%);
  aspect-ratio: 1;
  justify-self: center;
  align-self: center;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  border: 1px solid var(--line-border);
}

.page-contact .urgent-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 品牌地址 ===== */
.page-contact .contact-location {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-contact .location-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .location-map {
  min-height: 240px;
  overflow: hidden;
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-contact .location-map img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .coordinate-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: clamp(24px, 3vw, 36px);
  background: var(--ink-raised);
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  outline: none;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base);
}

.page-contact .coordinate-card::before {
  content: '';
  position: absolute;
  top: 14px;
  right: 18px;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(183, 255, 0, 0.35);
  clip-path: polygon(0 50%, 50% 0, 100% 50%, 50% 100%);
}

.page-contact .coordinate-card:hover,
.page-contact .coordinate-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--neon-strike);
}

.page-contact .coordinate-line {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon-strike);
}

.page-contact .coordinate-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.375rem;
  line-height: 1.3;
}

.page-contact .coordinate-summary,
.page-contact .coordinate-detail {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-contact .coordinate-detail {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease,
    opacity 0.4s ease,
    margin-top 0.4s ease;
}

.page-contact .coordinate-card:hover .coordinate-detail,
.page-contact .coordinate-card:focus-visible .coordinate-detail,
.page-contact .coordinate-card:focus-within .coordinate-detail {
  max-height: 180px;
  opacity: 1;
  margin-top: 2px;
}

.page-contact .coordinate-card .legend {
  margin: 6px 0 0;
  padding: 0;
}

.page-contact .coordinate-card .btn {
  align-self: flex-start;
  margin-top: 6px;
}

/* ===== 业务合作 ===== */
.page-contact .contact-partnership {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .partnership-panel {
  position: relative;
  padding: clamp(28px, 4vw, 48px);
  background: var(--ink-panel);
  border-top: 2px solid var(--gold-accent);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.page-contact .partnership-panel h2 {
  margin: 8px 0 16px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
}

.page-contact .partnership-panel p {
  margin: 0 0 24px;
  max-width: 62ch;
  color: var(--text-secondary);
  line-height: 1.75;
}

.page-contact .partnership-links {
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink-panel);
  border: 1px solid var(--line-border);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-contact .partnership-links h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.125rem;
}

.page-contact .partnership-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-contact .partnership-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 0;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--line-border);
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.page-contact .partnership-links a::before {
  content: '';
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--neon-strike);
  transform: rotate(45deg);
}

.page-contact .partnership-links a:hover,
.page-contact .partnership-links a:focus-visible {
  color: var(--neon-strike);
  border-color: var(--neon-strike);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 640px) {
  .page-contact .channels-grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .page-contact .channel-card-email {
    grid-column: span 12;
  }

  .page-contact .channel-card-phone {
    grid-column: span 8;
  }

  .page-contact .channel-card-hours {
    grid-column: span 4;
  }

  .page-contact .channel-card-sla {
    grid-column: span 12;
  }
}

@media (min-width: 820px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 48px;
  }

  .page-contact .contact-hero-locator {
    min-height: 300px;
  }

  .page-contact .urgent-panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 40px;
  }

  .page-contact .urgent-image {
    justify-self: end;
  }
}

@media (min-width: 980px) {
  .page-contact .channel-card-email {
    grid-column: 1 / span 5;
  }

  .page-contact .channel-card-phone {
    grid-column: 7 / span 5;
    margin-top: 32px;
  }

  .page-contact .channel-card-hours {
    grid-column: 1 / span 3;
    transform: translateY(-18px);
  }

  .page-contact .channel-card-sla {
    grid-column: 5 / span 7;
    margin-top: -14px;
  }

  .page-contact .location-wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: stretch;
  }

  .page-contact .contact-partnership {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .urgent-email,
  .page-contact .coordinate-card,
  .page-contact .coordinate-detail {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }

  .page-contact .coordinate-card:hover,
  .page-contact .coordinate-card:focus-visible {
    transform: none;
  }
}