/* 波浪下划线 — 文章内链接hover时SVG波浪动画 */
.wp-posts-content a:hover {
    color: #1e73be;
    text-decoration: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 4'%3E%3Cpath fill='none' stroke='%23FF4500' d='M0 3.5c5 0 5-3 10-3s5 3 10 3 5-3 10-3 5 3 10 3'/%3E%3C/svg%3E") repeat-x 0 100%;
    background-size: 20px auto;
    animation: zm-waveMove 1s infinite linear;
}

@keyframes zm-waveMove {
    from { background-position: 0 100%; }
    to   { background-position: -20px 100%; }
}