:root {
  --sf-brand: #165daa;
  --sf-brand-deep: #0f4a8c;
  --sf-ink: #0f172a;
  --sf-muted: #64748b;
  --sf-line: #e2e8f0;
  --sf-soft: #f8fafc;
  --sf-white: #ffffff;
  --sf-shadow: 0 14px 36px rgba(15, 23, 42, 0.16);
}

.site-float {
  display: none !important;
  position: fixed;
  right: 0.85rem;
  bottom: 1.5rem;
  z-index: 90;
  gap: 0.55rem;
  justify-items: end;
  pointer-events: none;
}

.site-float > * {
  pointer-events: auto;
}

.site-float__dock {
  display: grid;
  gap: 0.45rem;
  padding: 0.45rem;
  border: 1px solid var(--sf-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--sf-shadow);
  backdrop-filter: blur(10px);
}

.site-float__btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.85rem;
  height: 2.85rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--sf-brand);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-float__btn:hover,
.site-float__btn.is-active {
  background: rgba(22, 93, 170, 0.1);
  color: var(--sf-brand-deep);
  transform: translateX(-2px);
}

.site-float__btn svg {
  width: 1.35rem;
  height: 1.35rem;
  display: block;
  fill: currentColor;
}

.site-float__btn[data-float-action="top"] {
  color: var(--sf-muted);
}

.site-float__btn[data-float-action="top"]:hover {
  color: var(--sf-brand);
}

.site-float__panel {
  width: min(17.5rem, calc(100vw - 1.25rem));
  margin-right: 0.55rem;
  padding: 0;
  border: 1px solid var(--sf-line);
  border-radius: 14px;
  background: var(--sf-white);
  box-shadow: var(--sf-shadow);
  overflow: hidden;
}

.site-float__panel[hidden] {
  display: none !important;
}

.site-float__panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0.95rem;
  border-bottom: 1px solid var(--sf-line);
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.site-float__panel-head strong {
  color: var(--sf-ink);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-float__close {
  display: grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border: 0;
  border-radius: 999px;
  background: var(--sf-soft);
  color: var(--sf-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.site-float__close:hover {
  background: rgba(22, 93, 170, 0.1);
  color: var(--sf-brand);
}

.site-float__panel-body {
  padding: 1rem 1rem 1.1rem;
}

.site-float__phones {
  display: grid;
  gap: 0.55rem;
}

.site-float__phones a {
  display: block;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  background: var(--sf-soft);
  color: var(--sf-brand-deep);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.site-float__phones a:hover {
  border-color: rgba(22, 93, 170, 0.35);
  background: rgba(22, 93, 170, 0.06);
}

.site-float__wechat {
  display: grid;
  gap: 0.85rem;
  justify-items: center;
  text-align: center;
}

.site-float__qr-frame {
  display: grid;
  place-items: center;
  width: 9.25rem;
  height: 9.25rem;
  padding: 0.55rem;
  border: 1px solid var(--sf-line);
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(22, 93, 170, 0.06), transparent 42%),
    var(--sf-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.site-float__qr {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 6px;
  background: #fff;
  object-fit: contain;
  image-rendering: pixelated;
}

.site-float__wechat-meta {
  display: grid;
  gap: 0.28rem;
  justify-items: center;
}

.site-float__wechat-meta strong {
  color: var(--sf-ink);
  font-size: 0.88rem;
  font-weight: 700;
}

.site-float__wechat-meta p {
  margin: 0;
  color: var(--sf-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.site-float__hint {
  margin: 0.75rem 0 0;
  color: var(--sf-muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

@media (max-width: 720px) {
  .site-float {
    right: 0.65rem;
    bottom: 1rem;
  }

  .site-float__btn {
    width: 2.65rem;
    height: 2.65rem;
  }

  .site-float__qr-frame {
    width: 8.5rem;
    height: 8.5rem;
  }
}