/* 深色 Footer 增强 */
footer {
    background-color: #0f172a !important;
    color: #cbd5e1 !important;
    padding: 2rem 0;
    border-top: 1px solid #1e293b;
}
footer a {
    color: #5eead4 !important;
}
footer a:hover {
    color: #2dd4bf !important;
    text-decoration: none;
}