.btn-box[data-v-80a5ebf8]{margin-top:20px;text-align:center}.btn-box span[data-v-80a5ebf8]{margin-left:10px}.letter-card[data-v-80a5ebf8]{margin-top:20px}.letter-download[data-v-80a5ebf8]{display:flex;align-items:center;justify-content:space-between;gap:20px}.letter-title[data-v-80a5ebf8]{font-size:16px;color:#303133;line-height:28px}.letter-desc[data-v-80a5ebf8]{color:#909399;line-height:24px}@media (max-width:600px){.letter-download[data-v-80a5ebf8]{align-items:flex-start;flex-direction:column}}