PARIS (Reuters) – Telecom equipment maker Alcatel-Lucent posted a net loss of 1.3 billion euros ($1.76 billion) last year hit by a writedown on its mobile business and restructuring costs, showing the uphill climb it faces in its long-awaited turnaround. The company also announced on Thursday that it was in talks to sell 75 percent of its enterprise business, which sells communications products and services to corporations, to investment fund China Huaxin. The potential transaction prices Alcatel-Lucent Enterprise at 268 million euros on an enterprise value basis. …