/* ========== Floating Sidebar ========== */
.sidebar-float {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar-float .sb-item {
  width: 56px;
  height: 56px;
  background: #fff;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  writing-mode: vertical-rl;
  letter-spacing: 2px;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
}
.sidebar-float .sb-item:first-child { border-radius: var(--radius-lg) 0 0 0; }
.sidebar-float .sb-item:last-child { border-radius: 0 0 0 var(--radius-lg); }
.sidebar-float .sb-item:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  width: 62px;
}
.sidebar-float .sb-item.sb-qr { writing-mode: horizontal-tb; flex-direction: column; gap: 4px; height: auto; padding: 10px 6px; }
.sidebar-float .sb-item.sb-phone-item { writing-mode: horizontal-tb; flex-direction: column; gap: 4px; height: auto; padding: 10px 6px; }
.sidebar-float .sb-item.sb-qr svg,
.sidebar-float .sb-item.sb-phone-item svg { width: 24px; height: 24px; }
.sidebar-float .sb-item.sb-qr span,
.sidebar-float .sb-item.sb-phone-item span { font-size: 11px; letter-spacing: 1px; }
.sidebar-float .sb-popup {
  position: absolute;
  right: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 16px;
  display: none;
  white-space: nowrap;
  border: 1px solid var(--border);
  z-index: 1000;
  text-align: center;
}
.sidebar-float .sb-item:hover .sb-popup,
.sidebar-float .sb-item.is-peeking .sb-popup { display: block; }
.sidebar-float .sb-item.is-peeking {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  width: 62px;
}
.sidebar-float .sb-popup img { width: 160px; height: 160px; border-radius: var(--radius); object-fit: contain; }
.sidebar-float .sb-popup .qr-tip { font-size: 13px; color: var(--text); margin-top: 8px; font-weight: 600; writing-mode: horizontal-tb; letter-spacing: 0; }
.sidebar-float .sb-popup .qr-sub { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.sidebar-float .sb-popup .qr-wechat-copy {
  width: 100%;
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 12px;
  background: linear-gradient(180deg, #eff6ff, #dbeafe);
  color: #1d4ed8;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.14);
  writing-mode: horizontal-tb;
  letter-spacing: 0;
}
.sidebar-float .sb-popup .qr-wechat-copy span {
  display: block;
  font-size: 12px;
  line-height: 1.2;
  color: #64748b;
  font-weight: 700;
  letter-spacing: 0;
}
.sidebar-float .sb-popup .qr-wechat-copy strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
  line-height: 1.2;
  color: #1d4ed8;
  letter-spacing: 2px;
}
.sidebar-float .sb-popup .qr-wechat-copy em {
  display: inline-flex;
  margin-top: 8px;
  padding: 3px 8px;
  border-radius: 999px;
  background: #2563eb;
  color: #fff;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0;
}
.sidebar-float .sb-popup .qr-wechat-copy:hover {
  border-color: #2563eb;
  background: #dbeafe;
}
.sidebar-float .sb-popup.phone-popup { padding: 16px 20px; }
.sidebar-float .sb-popup.phone-popup .phone-num { font-size: 18px; font-weight: 700; color: var(--primary); letter-spacing: 0; }
.sidebar-float .sb-popup.phone-popup .phone-label { font-size: 12px; color: var(--text-light); margin-top: 2px; letter-spacing: 0; }

/* ========== SVG Icons ========== */
.icon-svg { display: inline-block; line-height: 1; flex-shrink: 0; }
.icon-svg svg { display: block; }

@media (max-width: 768px) {
  .sidebar-float { right: 4px; }
  .sidebar-float .sb-item { width: 44px; height: 44px; font-size: 11px; }
  .sidebar-float .sb-popup { right: 50px; }
  .sidebar-float .sb-popup img { width: 120px; height: 120px; }
  .sidebar-float .sb-popup .qr-wechat-copy strong { font-size: 18px; }
}