/* ============================================
   增强 footer：联系卡 + 微信扫码
   ============================================ */

/* footer-grid 改成 3:2:2:2:3 比例放大 brand + 加 wechat 列 */
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr 1.4fr;
  gap: var(--sp-10);
}

/* 联系信息卡 */
.footer-contact-list {
  margin-top: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.footer-contact-row {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
}
.footer-contact-row .ic {
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  background: rgba(96,165,250,0.12);
  color: var(--c-primary-300);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.footer-contact-row .ic svg { width: 16px; height: 16px; }
.footer-contact-row .body { flex: 1; line-height: 1.4; padding-top: 4px; }
.footer-contact-row .label { color: var(--c-gray-500); font-size: 11px; }
.footer-contact-row .value { color: var(--c-white); font-weight: 500; font-family: var(--font-mono); letter-spacing: 0.02em; }
.footer-contact-row .value.cn { font-family: var(--font-sans); font-weight: 500; letter-spacing: 0; }

/* WeChat 扫码卡 */
.footer-wechat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
}
.footer-wechat h4 {
  color: var(--c-white);
  font-size: var(--fs-base);
  margin-bottom: var(--sp-2);
}
.footer-wechat .qr-box {
  background: var(--c-white);
  padding: 10px;
  border-radius: var(--r-md);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  position: relative;
}
.footer-wechat .qr-box img {
  width: 140px;
  height: 140px;
  display: block;
  background: #fff;
  border-radius: 4px;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}
.footer-wechat .qr-box::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-primary-400), var(--c-cyan-400), var(--c-accent-400));
  z-index: -1;
  filter: blur(8px);
  opacity: 0.6;
}
.footer-wechat .hint {
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-xs);
  text-align: center;
  line-height: 1.5;
}
.footer-wechat .hint strong {
  color: var(--c-accent-400);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

@media (max-width: 1024px) {
  .site-footer .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-wechat { grid-column: 1 / -1; margin-top: var(--sp-6); }
}
@media (max-width: 640px) {
  .site-footer .footer-grid { grid-template-columns: 1fr; }
}