everlasting option

Everlasting options have no expiry date, eliminating theta decay as a concern for long option holders.永久期权没有到期日，消除了期权多头持有者对 Theta 衰减的担忧。

Everlasting options are settled via a continuous funding mechanism similar to perpetuals, replicating option-like payoffs.永久期权通过类似于永续合约的连续资金费率机制进行结算，复制了类似期权的收益。