/* Contact stack UNDER the AI robot fab (toward page bottom).
   Screen top→bottom: ddb-fab → 微信公众号 → 企业微信 */
.ddb-float-contact {
  position: fixed;
  right: 22px;
  bottom: 22px; /* lowest: WeCom sits here via column order */
  z-index: 92;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  pointer-events: none;
}

.ddb-float-btn-wrap {
  position: relative;
  pointer-events: auto;
}

.ddb-float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.18), 0 2px 8px rgba(15, 23, 42, 0.08);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.ddb-float-btn:hover {
  transform: translateY(-2px) scale(1.03);
}

.ddb-float-btn:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 3px;
}

.ddb-float-oa {
  background: linear-gradient(145deg, #22c55e, #16a34a);
  box-shadow: 0 8px 24px rgba(22, 163, 74, 0.35), 0 2px 8px rgba(15, 23, 42, 0.08);
}
.ddb-float-oa:hover {
  box-shadow: 0 12px 28px rgba(22, 163, 74, 0.42), 0 2px 8px rgba(15, 23, 42, 0.08);
}

.ddb-float-wecom {
  background: linear-gradient(145deg, #3b82f6, #1d4ed8);
  box-shadow: 0 8px 24px rgba(29, 78, 216, 0.35), 0 2px 8px rgba(15, 23, 42, 0.08);
}
.ddb-float-wecom:hover {
  box-shadow: 0 12px 28px rgba(29, 78, 216, 0.42), 0 2px 8px rgba(15, 23, 42, 0.08);
}

.ddb-float-btn svg {
  display: block;
  pointer-events: none;
}

.ddb-float-oa-pop {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 93;
}

.ddb-float-oa-pop[hidden] {
  display: none !important;
}

.ddb-float-oa-pop-inner {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 12px 12px 10px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.16);
  width: 192px;
  text-align: center;
}

.ddb-float-oa-pop-inner img {
  display: block;
  width: 168px;
  height: 168px;
  object-fit: contain;
  border-radius: 8px;
  margin: 0 auto;
  background: #fff;
}

.ddb-float-oa-pop-inner p {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.45;
  color: #0f172a;
  font-weight: 600;
}

@media (max-width: 480px) {
  .ddb-float-contact {
    right: 14px;
    bottom: 14px;
    gap: 10px;
  }
  .ddb-float-btn {
    width: 48px;
    height: 48px;
  }
  .ddb-float-oa-pop {
    right: calc(100% + 10px);
  }
  .ddb-float-oa-pop-inner {
    width: 168px;
    padding: 10px 10px 8px;
  }
  .ddb-float-oa-pop-inner img {
    width: 148px;
    height: 148px;
  }
}