/* ============================================
   页脚
   ============================================ */

.site-footer {
  background: #1e3a8a;
  border-top: none;
}

.footer-top {
  padding: var(--sp-3xl) 0;
}

.footer-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: var(--sp-2xl);
}

@supports (display: grid) {
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: var(--sp-2xl);
  }
}

.footer-col {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 200px;
  flex: 1 1 200px;
  min-width: 200px;
}

.footer-logo-wrap {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-lg);
}

.footer-logo-img {
  width: 36px;
  height: 36px;
  display: block;
  flex-shrink: 0;
}

.footer-logo-text {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 2px;
}

.footer-desc {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}

.footer-heading {
  font-size: var(--fs-base);
  color: #ffffff;
  font-weight: 600;
  margin-bottom: var(--sp-lg);
  letter-spacing: 0.5px;
}

.footer-links li {
  margin-bottom: var(--sp-sm);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--t-fast), padding-left var(--t-fast);
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 6px;
}

.footer-contact p {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  gap: var(--sp-sm);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: var(--sp-md);
}

.footer-icon {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-base);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- 底部版权栏 --- */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--sp-lg) 0;
}

.footer-bottom-inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: var(--sp-sm);
}

.footer-bottom-inner p {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.45);
  margin: 0;
}

.footer-bottom-inner a {
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom-inner a:hover {
  color: #ffffff;
}

/* --- 响应式 --- */
@media (max-width: 1023px) {
  @supports (display: grid) {
    .footer-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
}

@media (max-width: 767px) {
  @supports (display: grid) {
    .footer-grid {
      grid-template-columns: 1fr;
    }
  }
  .footer-bottom-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    text-align: center;
  }
}