/* 币种图标样式 - 使用背景色+文字方式 */
.coin-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
}

.coin-icon-btc { background: linear-gradient(135deg, #F7931A 0%, #FFAB00 100%); }
.coin-icon-eth { background: linear-gradient(135deg, #627EEA 0%, #8C9EFF 100%); }
.coin-icon-bnb { background: linear-gradient(135deg, #F3BA2F 0%, #FFD54F 100%); }
.coin-icon-xrp { background: linear-gradient(135deg, #23292F 0%, #455A64 100%); }
.coin-icon-sol { background: linear-gradient(135deg, #9945FF 0%, #14F195 100%); }
.coin-icon-ada { background: linear-gradient(135deg, #0033AD 0%, #2196F3 100%); }
.coin-icon-doge { background: linear-gradient(135deg, #C2A633 0%, #FFD54F 100%); }
.coin-icon-dot { background: linear-gradient(135deg, #E6007A 0%, #FF4081 100%); }
.coin-icon-ltc { background: linear-gradient(135deg, #345D9D 0%, #5C8BE8 100%); }
.coin-icon-trx { background: linear-gradient(135deg, #FF0013 0%, #FF5252 100%); }
.coin-icon-shib { background: linear-gradient(135deg, #FFA409 0%, #FFCA28 100%); }
.coin-icon-avax { background: linear-gradient(135deg, #E84142 0%, #FF6B6B 100%); }
.coin-icon-matic { background: linear-gradient(135deg, #8247E5 0%, #B388FF 100%); }
.coin-icon-link { background: linear-gradient(135deg, #2A5ADA 0%, #5C8BE8 100%); }
.coin-icon-uni { background: linear-gradient(135deg, #FF007A 0%, #FF4081 100%); }

/* 默认图标 */
.coin-icon-default { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }