/* 樣式保持極簡 */
.wechat-sticky {
    position: fixed; bottom: 30px; right: 30px;
    background-color: #06B054; color: white;
    border-radius: 50px; padding: 12px 24px;
    display: flex; align-items: center; z-index: 9999;
    cursor: pointer; box-shadow: 0 4px 15px rgba(6, 176, 84, 0.4);
}
@media (max-width: 768px) {
    .wechat-sticky { padding: 10px; bottom: 70px; right: 12px; border-radius: 50%; }
    .wechat-sticky span:nth-child(2) { display: none; }
    .wechat-sticky span:nth-child(1) { margin-right: 0 !important; }
}
.wechat-alert {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6); display: flex; justify-content: center;
    align-items: center; z-index: 10000;
}
.wechat-alert-content { background: white; padding: 30px; border-radius: 12px; text-align: center; max-width: 320px; width: 80%; }
.wechat-alert-content button { background: #06B054; color: white; border: none; padding: 10px 30px; border-radius: 6px; margin-top: 20px; width: 100%; cursor: pointer; }