/* ============ 联系交流页（Contact）页面专属样式 ============ */
.page-contact {
  --c-border: var(--line-subtle);
  --c-grid: rgba(0, 229, 136, 0.07);
  overflow-x: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 229, 136, 0.05), transparent 32%),
    transparent;
}

/* ---- 面包屑增强 ---- */
.page-contact .breadcrumb {
  padding-top: 24px;
  padding-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.page-contact .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ============ 首屏：信号收集面板 ============ */
.page-contact .c-hero {
  position: relative;
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--c-border);
  background:
    linear-gradient(var(--c-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-contact .c-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--terminal-green), transparent);
  opacity: 0.5;
}

.page-contact .c-hero__signal-id {
  position: absolute;
  top: 18px;
  right: 0;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: rgba(0, 229, 136, 0.45);
  writing-mode: vertical-rl;
  text-orientation: upright;
}

.page-contact .c-hero__grid {
  display: grid;
  gap: 32px;
  align-items: end;
}

.page-contact .c-hero__content {
  min-width: 0;
}

.page-contact .c-hero__lead {
  margin-top: 18px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.9;
}

.page-contact .c-hero__note {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--terminal-green);
  font-size: 13px;
  color: rgba(184, 197, 192, 0.8);
}

/* ---- 信号状态盒 ---- */
.page-contact .signal-box {
  position: relative;
  padding: 18px 20px;
  border: 1px solid rgba(0, 229, 136, 0.28);
  background: rgba(15, 35, 64, 0.7);
}

.page-contact .signal-box::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed rgba(0, 229, 136, 0.16);
  pointer-events: none;
}

.page-contact .signal-box__head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid rgba(232, 240, 236, 0.1);
  font-size: 13px;
  color: var(--powder-white);
}

.page-contact .signal-box__status {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--terminal-green);
}

.page-contact .signal-box__body {
  padding-top: 6px;
}

.page-contact .signal-box__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--powder-white);
}

.page-contact .signal-box__key {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ============ 联系渠道 ============ */
.page-contact .c-channels {
  padding: 52px 0 8px;
}

.page-contact .terminal {
  position: relative;
  margin-top: 28px;
  border: 1px solid rgba(0, 229, 136, 0.35);
  background: rgba(8, 18, 30, 0.9);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.3);
}

.page-contact .terminal__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(232, 240, 236, 0.08);
  background: rgba(15, 35, 64, 0.85);
  font-size: 12px;
  color: rgba(184, 197, 192, 0.9);
}

.page-contact .terminal__led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--terminal-green);
  box-shadow: 0 0 8px rgba(0, 229, 136, 0.8);
  animation: page-contact-blink 1.4s ease-in-out infinite;
}

@keyframes page-contact-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.page-contact .terminal__body {
  padding: 4px 0;
}

.page-contact .channel-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 16px 18px;
  border-bottom: 1px dashed rgba(232, 240, 236, 0.08);
  transition: background 0.2s ease;
}

.page-contact .channel-line:last-child {
  border-bottom: none;
}

.page-contact .channel-line:hover {
  background: rgba(0, 229, 136, 0.05);
}

.page-contact .channel-line__tag {
  min-width: 52px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--terminal-green);
}

.page-contact .channel-line__value {
  flex: 1 1 220px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--powder-white);
  text-decoration: none;
  word-break: break-all;
  transition: color 0.2s ease;
}

.page-contact .channel-line__value:hover {
  color: var(--terminal-green);
}

/* ============ 信号可视化图 ============ */
.page-contact .c-visual {
  padding: 44px 0 8px;
}

.page-contact .c-visual__frame {
  position: relative;
  border: 1px solid rgba(0, 229, 136, 0.15);
}

.page-contact .c-visual__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--pulse-orange), var(--terminal-green), transparent);
  z-index: 1;
}

/* ============ 沟通边界 ============ */
.page-contact .c-boundary {
  padding: 48px 0 8px;
}

.page-contact .boundary-grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .boundary-card {
  position: relative;
  padding: 24px 22px;
  border: 1px solid var(--c-border);
  border-top: 2px solid transparent;
  background: rgba(15, 35, 64, 0.35);
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-contact .boundary-card__index {
  position: absolute;
  top: 14px;
  right: 16px;
  font-size: 12px;
  color: rgba(184, 197, 192, 0.6);
}

.page-contact .boundary-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--powder-white);
}

.page-contact .boundary-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .boundary-card--ok {
  border-top-color: var(--terminal-green);
}

.page-contact .boundary-card--warn {
  border-top-color: var(--warning-yellow);
}

.page-contact .boundary-card--note {
  border-top-color: var(--pulse-orange);
}

/* ============ 位置示意 ============ */
.page-contact .c-location {
  padding: 48px 0 8px;
}

.page-contact .c-location__grid {
  display: grid;
  gap: 28px;
  margin-top: 24px;
  align-items: center;
}

.page-contact .c-location__frame {
  padding: 6px;
  border: 1px solid rgba(255, 77, 0, 0.25);
  background:
    linear-gradient(var(--c-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
  background-size: 16px 16px;
}

.page-contact .c-location__info > p {
  margin: 12px 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .location-card {
  position: relative;
  padding: 16px 18px;
  border: 1px dashed rgba(0, 229, 136, 0.4);
  background: rgba(15, 35, 64, 0.4);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-contact .location-card:hover,
.page-contact .location-card:focus-within {
  border-color: var(--terminal-green);
  background: rgba(0, 229, 136, 0.06);
}

.page-contact .location-card__key {
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--terminal-green);
}

.page-contact .location-card__value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--powder-white);
}

.page-contact .location-card__hint {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(232, 240, 236, 0.08);
  font-size: 12px;
  line-height: 1.6;
  color: rgba(184, 197, 192, 0.7);
}

/* ============ 帮助引导 ============ */
.page-contact .c-help {
  padding: 48px 0 8px;
}

.page-contact .help-panel {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 28px 24px;
  border: 1px solid var(--c-border);
  background: linear-gradient(135deg, rgba(15, 35, 64, 0.7), rgba(8, 18, 30, 0.7));
}

.page-contact .help-panel__icon {
  display: flex;
  flex: 0 0 44px;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 22px;
  font-weight: 700;
  color: var(--deep-ink);
  background: var(--terminal-green);
}

.page-contact .help-panel__content {
  flex: 1;
  min-width: 0;
}

.page-contact .help-panel__content h2 {
  margin: 4px 0 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--powder-white);
}

.page-contact .help-panel__content p {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .help-panel__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============ 备案信息 ============ */
.page-contact .c-icp {
  padding: 40px 0 56px;
}

.page-contact .icp-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 16px 20px;
  border-left: 3px solid var(--terminal-green);
  background: var(--panorama-blue);
}

.page-contact .icp-strip__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--terminal-green);
}

.page-contact .icp-strip__value {
  font-size: 14px;
  font-weight: 700;
  color: var(--powder-white);
}

.page-contact .icp-strip__desc {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-dim);
}

/* ============ 图片通用适配 ============ */
.page-contact .image-shell img {
  display: block;
  width: 100%;
  height: auto;
}

/* ============ 桌面布局（≥768px） ============ */
@media (min-width: 768px) {
  .page-contact .c-hero {
    padding: 56px 0 64px;
  }

  .page-contact .c-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
  }

  .page-contact .c-hero__signal-id {
    right: 1%;
  }

  .page-contact .terminal__body {
    padding: 8px 12px;
  }

  .page-contact .channel-line {
    flex-wrap: nowrap;
    padding: 18px 20px;
  }

  .page-contact .boundary-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .c-location__grid {
    grid-template-columns: 5fr 7fr;
    gap: 44px;
  }

  .page-contact .help-panel {
    align-items: center;
    padding: 32px 36px;
  }

  .page-contact .help-panel__content p {
    margin-bottom: 0;
  }

  .page-contact .help-panel__links {
    margin-top: 20px;
  }

  .page-contact .icp-strip {
    padding: 18px 24px;
  }
}

/* ============ 减少动态偏好 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-contact .terminal__led {
    animation: none;
  }
}