By Tom Westbrook SINGAPORE, Jan 4 (Reuters) - The euro steadied on Wednesday and riskier currencies bounced, lifted by optimism that China's eventual emergence from COVID restrictions helps growth, while investor focus turned to U.S. data and the Federal Reserve. EMRG/FRX Larger moves were capped in the still holiday-thinned Asia session by looming economic data in the United States and the release of minutes from last month's Federal Reserve meeting. Headline German CPI fell to an annual 8.6% in December, from 10% the previous month, against expectations for 9.1%, data on Tuesday showed, knocking the euro and rallying bunds.