.page-contact {
  position: relative;
  background-color: var(--c-bg);
  background-image:
    linear-gradient(rgba(62, 255, 154, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 255, 154, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(192, 200, 208, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 200, 208, 0.05) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  overflow-x: clip;
}

.page-contact .site-container {
  padding-top: 1.5rem;
  padding-bottom: 5rem;
}

.page-contact .contact-breadcrumb {
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
}

.page-contact .contact-hero {
  position: relative;
  padding: 1rem 0 2.25rem;
  border-bottom: 2px solid var(--c-border);
  margin-bottom: 2rem;
}

.page-contact .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--c-accent);
  background: rgba(62, 255, 154, 0.06);
  transform: skewX(-6deg);
  margin-bottom: 1rem;
}

.page-contact .hero-kicker::before {
  content: "▶";
  font-size: 0.68rem;
  color: var(--c-accent);
  transform: skewX(6deg);
}

.page-contact .contact-hero .page-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
  color: var(--c-text);
}

.page-contact .contact-hero .page-lead {
  max-width: 62rem;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--c-text-secondary);
  margin: 0;
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

.page-contact .contact-info-col {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--c-card);
  border: 2px solid var(--c-border);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-contact .contact-info-col::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-accent) 0%, rgba(62, 255, 154, 0.1) 65%, transparent 100%);
}

.page-contact .contact-col-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--c-border);
}

.page-contact .contact-col-head .section-title {
  margin: 0;
  font-size: 1.35rem;
}

.page-contact .contact-count {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--c-accent);
  background: var(--c-primary-light);
  border: 1px solid var(--c-accent);
  padding: 0.3rem 0.65rem;
  white-space: nowrap;
}

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

.page-contact .contact-card {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.4rem 1rem;
  align-items: start;
  padding: 1.1rem 1.2rem;
  background: var(--c-primary);
  border: 1px solid var(--c-border);
  transition: var(--transition);
}

.page-contact .contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-accent);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.28);
}

.page-contact .contact-card-index {
  grid-row: span 3;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--c-accent);
  background: rgba(62, 255, 154, 0.05);
  color: var(--c-accent);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  transform: skewX(-8deg);
}

.page-contact .contact-label {
  align-self: end;
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-text-secondary);
}

.page-contact .contact-value {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.55;
  color: var(--c-text);
  word-break: break-word;
}

.page-contact .contact-link {
  text-decoration: none;
  border-bottom: 1px dashed var(--c-silver);
  transition: var(--transition);
}

.page-contact .contact-link:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

.page-contact .contact-tip {
  grid-column: 2;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--c-text-secondary);
}

.page-contact .contact-copy-btn {
  grid-column: 2;
  justify-self: start;
  font-size: 0.85rem;
  padding: 0.35rem 0.9rem;
}

.page-contact .contact-map {
  margin: 0;
  border: 2px solid var(--c-border);
  background: var(--c-primary);
}

.page-contact .contact-map img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-contact .contact-map .image-caption {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  border-top: 1px solid var(--c-border);
}

.page-contact .contact-about-link {
  align-self: flex-start;
  font-size: 0.9rem;
}

.page-contact .contact-action-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-content: start;
}

.page-contact .contact-support-image {
  margin: 0;
  border: 2px solid var(--c-border);
  background: var(--c-primary);
}

.page-contact .contact-support-image img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-contact .contact-support-image .image-caption {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  border-top: 1px solid var(--c-border);
}

.page-contact .contact-reply-panel {
  background: var(--c-primary-light);
  border: 2px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
}

.page-contact .contact-reply-panel .panel-label {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-accent);
}

.page-contact .contact-reply-panel p {
  margin: 0;
  color: var(--c-text);
  font-size: 1rem;
  line-height: 1.7;
}

.page-contact .contact-reply-panel a,
.page-contact .usage-box a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-contact .contact-feedback {
  position: relative;
  background: var(--c-card);
  border: 2px solid var(--c-border);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.page-contact .contact-feedback::after {
  content: "静态示意";
  position: absolute;
  top: 0;
  right: 0;
  background: var(--c-danger);
  color: var(--c-text);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.75rem;
}

.page-contact .contact-feedback .section-title {
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
}

.page-contact .feedback-intro {
  margin: 0 0 1.2rem;
  font-size: 0.9rem;
  color: var(--c-text-secondary);
}

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

.page-contact .feedback-field {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
}

.page-contact .feedback-label {
  font-size: 0.85rem;
  color: var(--c-text-secondary);
  letter-spacing: 0.02em;
}

.page-contact .feedback-input.fake {
  display: block;
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  padding: 0.75rem 0.9rem;
  color: var(--c-text-secondary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-height: 2.9rem;
}

.page-contact .feedback-input.fake.taller {
  min-height: 5.5rem;
}

.page-contact .feedback-field.has-error .feedback-input.fake {
  border-color: var(--c-danger);
  box-shadow: inset 3px 0 0 var(--c-danger);
}

.page-contact .feedback-error {
  color: var(--c-danger);
  font-size: 0.82rem;
}

.page-contact .contact-feedback .btn {
  justify-self: start;
}

.page-contact .feedback-note {
  margin: 0.4rem 0 0;
  font-size: 0.82rem;
  color: var(--c-text-secondary);
}

.page-contact .contact-usage {
  margin-top: 2rem;
}

.page-contact .usage-box {
  background: var(--c-primary);
  border: 2px solid var(--c-border);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.page-contact .usage-box::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--c-accent);
}

.page-contact .usage-box .section-title {
  margin: 0 0 0.75rem;
  color: var(--c-accent);
  font-size: 1.3rem;
}

.page-contact .usage-box p {
  margin: 0 0 0.5rem;
  color: var(--c-text);
  line-height: 1.7;
}

.page-contact .usage-box p:last-child {
  margin-bottom: 0;
}

.page-contact .usage-note {
  font-size: 0.9rem;
  color: var(--c-text-secondary);
}

@media (min-width: 900px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2.5rem;
  }

  .page-contact .contact-info-col {
    padding: 2rem;
  }

  .page-contact .contact-card {
    padding: 1.25rem 1.4rem;
  }

  .page-contact .contact-action-col {
    padding-top: 0.5rem;
  }

  .page-contact .usage-box {
    padding: 1.75rem 2rem;
  }
}