.module-nav {
    width: 100%;
    border-bottom: 1px solid rgba(15, 23, 42, 0.12);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 1px 8px rgba(15, 23, 42, 0.06);
    position: sticky;
    top: 0;
    z-index: 50;
}
.module-nav-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0.55rem 1rem;
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    scrollbar-width: thin;
}
.module-nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.35rem;
    padding: 0.45rem 0.8rem;
    border-radius: 0.55rem;
    color: #334155;
    text-decoration: none;
    font-weight: 650;
    white-space: nowrap;
    border: 1px solid transparent;
}
.module-nav-link:hover {
    background: #eef4ff;
    border-color: #cbdaf7;
    color: #174ea6;
}
.module-nav-link.active {
    background: #1769d2;
    color: #fff;
    border-color: #1769d2;
}
@media (max-width: 640px) {
    .module-nav-inner { padding: 0.45rem 0.6rem; }
    .module-nav-link { padding: 0.4rem 0.65rem; font-size: 0.92rem; }
}