/* ================== 系列文章导航 ================== */
.series-nav {
    margin-bottom: 1.6rem;
    padding: 1rem 1.2rem;
    border: 1px solid var(--line-color);
    border-radius: 12px;
    background: var(--board-bg-color);
}

.series-nav__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}

.series-nav__name {
    font-weight: 600;
    color: var(--text-color);
}

.series-nav__count {
    font-size: 0.85rem;
    color: var(--sec-text-color);
    white-space: nowrap;
}

.series-nav__list {
    margin: 0;
    padding-left: 1.3rem;
}

.series-nav__item {
    font-size: 0.92rem;
    line-height: 1.9;
    color: var(--sec-text-color);
}

.series-nav__item a {
    color: var(--sec-text-color);
    text-decoration: none;
}

.series-nav__item a:hover {
    color: var(--text-color);
    text-decoration: underline;
}

.series-nav__item--current {
    color: var(--text-color);
    font-weight: 600;
}

.series-nav__item--current > span::after {
    content: "（当前）";
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--sec-text-color);
}

.series-nav__steps {
    display: flex;
    gap: 1.2rem;
    margin-top: 0.6rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--line-color);
}

.series-nav__step {
    font-size: 0.92rem;
    color: var(--link-hover-color, var(--text-color));
    text-decoration: none;
}

.series-nav__step:hover {
    text-decoration: underline;
}