#onlineservice-widget {
  position: fixed;
  z-index: 99999;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2937;
}

#onlineservice-widget.os-right-bottom { right: 22px; bottom: 22px; }
#onlineservice-widget.os-left-bottom { left: 22px; bottom: 22px; }
#onlineservice-widget.os-right-center { right: 22px; top: 50%; transform: translateY(-50%); }
#onlineservice-widget.os-left-center { left: 22px; top: 50%; transform: translateY(-50%); }

#onlineservice-widget .os-launcher {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 112px;
  height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 21px;
  background: #0f766e;
  color: #fff;
  box-shadow: 0 8px 24px rgba(15, 118, 110, .28);
  cursor: pointer;
}

#onlineservice-widget .os-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f59e0b;
}

#onlineservice-widget .os-dot.is-online { background: #22c55e; }

#onlineservice-widget .os-panel {
  display: none;
  width: 340px;
  max-width: calc(100vw - 28px);
  margin-bottom: 12px;
  overflow: hidden;
  border: 1px solid #d8dee4;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 42px rgba(15, 23, 42, .18);
}

#onlineservice-widget.is-open .os-panel { display: block; }
#onlineservice-widget.is-open .os-launcher { display: none; }

#onlineservice-widget .os-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  background: #0f766e;
  color: #fff;
}

#onlineservice-widget .os-panel-header strong,
#onlineservice-widget .os-panel-header span {
  display: block;
  line-height: 1.3;
}

#onlineservice-widget .os-panel-header span {
  font-size: 12px;
  opacity: .86;
}

#onlineservice-widget .os-close {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,.16);
  color: #fff;
  font-size: 20px;
  line-height: 28px;
  cursor: pointer;
}

#onlineservice-widget .os-messages {
  height: 250px;
  padding: 12px;
  overflow-y: auto;
  background: #f8fafc;
}

#onlineservice-widget .os-msg {
  max-width: 86%;
  margin: 0 0 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e5e7eb;
  line-height: 1.5;
  word-break: break-word;
}

#onlineservice-widget .os-msg.is-me {
  margin-left: auto;
  background: #e7f7f4;
  border-color: #b8e4dd;
}

#onlineservice-widget .os-form {
  padding: 12px;
  border-top: 1px solid #e5e7eb;
}

#onlineservice-widget .os-contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

#onlineservice-widget input,
#onlineservice-widget textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 8px;
  font-size: 14px;
}

#onlineservice-widget textarea {
  resize: vertical;
}

#onlineservice-widget .os-form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

#onlineservice-widget .os-tip {
  color: #64748b;
  font-size: 12px;
}

#onlineservice-widget .os-form-actions button,
#onlineservice-widget .os-rating button {
  border: 0;
  border-radius: 6px;
  background: #0f766e;
  color: #fff;
  padding: 8px 14px;
  cursor: pointer;
}

#onlineservice-widget .os-rating {
  padding: 10px 12px 12px;
  border-top: 1px solid #e5e7eb;
}

#onlineservice-widget .os-rating span {
  display: block;
  margin-bottom: 8px;
  color: #475569;
  font-size: 13px;
}

@media (max-width: 640px) {
  #onlineservice-widget {
    right: 14px !important;
    left: 14px !important;
    bottom: 14px !important;
    top: auto !important;
    transform: none !important;
  }

  #onlineservice-widget .os-panel {
    width: 100%;
  }
}