/* 大視界 共用底部欄 */
.site-footer {
  margin-top: 44px;
  background: linear-gradient(135deg, #001a4d 0%, #00296e 100%);
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.5fr;
  gap: 36px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 46px 0 38px;
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 0;
}

.footer-col h4 {
  margin: 0 0 6px;
  color: #ffffff;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  transition: color 0.2s ease;
  line-height: 1.5;
}

.footer-col a:hover {
  color: #8ab2ff;
}

.footer-logo {
  width: auto;
  height: 46px;
  margin-bottom: 4px;
  object-fit: contain;
}

.footer-brand p {
  margin: 0;
  line-height: 1.8;
}

.footer-contact a {
  width: fit-content;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.footer-social a {
  display: inline-flex;
}

.footer-social img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  transition: transform 0.2s ease, background 0.2s ease;
}

.footer-social a:hover img {
  background: rgba(255, 255, 255, 0.24);
  transform: translateY(-2px);
}

.footer-bottom {
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  text-align: center;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

/* ===== 響應式 ===== */
@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 560px) {
  .site-footer {
    margin-top: 30px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 34px 0 28px;
  }
}