/* ============================================================
   联系
   ============================================================ */
.contact-card {
  padding: clamp(48px, 8vw, 96px) clamp(32px, 5vw, 64px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: clamp(20px, 3vw, 32px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-soft), transparent 60%);
  pointer-events: none;
}

.contact-card > * { position: relative; z-index: 1; }

.contact-card h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.contact-card h2 em {
  font-style: normal;
  font-weight: 400;
  color: var(--accent);
}

.contact-card p {
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--fg-soft);
  max-width: 56ch;
  margin: 0 auto 36px;
}

.contact-actions {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.contact-social {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.contact-social a {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  transition: all 0.3s var(--ease);
  color: var(--fg-soft);
}

.contact-social a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.contact-social a:active {
  transform: translateY(-1px);
  transition-duration: 0.1s;
}

.contact-social svg { width: 16px; height: 16px; fill: currentColor; }