/**
 * KNN-文章导航 页面样式（自包含）
 * 分类分组列表 + 右侧锚点目录 + 超管设置弹窗（双栏分类选择）
 */

/* 简介 */
.knn-postsnavs-page .navs-page-desc {
    margin: -5px 0 15px;
    line-height: 1.8;
}

/* 分类分组 */
.knn-postsnavs-page .navs-cat-group {
    margin-bottom: 25px;
}

.knn-postsnavs-page .navs-cat-title {
    position: relative;
    font-size: var(--knn-font-size-lg);
    font-weight: 600;
    margin: 0 0 12px;
    padding-left: 12px;
}

.knn-postsnavs-page .navs-cat-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 1em;
    border-radius: 2px;
    background: var(--knn-color-primary);
}

.knn-postsnavs-page .navs-post-list {
    list-style: none;
    margin: 0;
    padding: 12px 15px;
    border-radius: var(--knn-border-radius);
    background: var(--knn-bg-color);
}

.knn-postsnavs-page .navs-post-item {
    line-height: 2.2;
}

.knn-postsnavs-page .navs-post-time {
    font-size: 13px;
    color: var(--knn-text-color-grey, #999);
}

.knn-postsnavs-page .icon-circle {
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--knn-text-color-grey, #999);
    margin: 0 8px;
    vertical-align: middle;
}

.knn-postsnavs-page .navs-post-item a {
    color: var(--knn-text-color);
}

.knn-postsnavs-page .navs-post-item a:hover {
    color: var(--knn-color-primary);
}

.knn-postsnavs-page .navs-empty {
    text-align: center;
    padding: 40px 0;
}

/* 右侧锚点目录 */
.knn-postsnavs-page .posts-nav-box {
    position: sticky;
    top: 80px;
    margin-bottom: 20px;
    padding: 15px;
    border-radius: var(--knn-border-radius);
    background: var(--knn-bg-color-card);
    border: 1px solid var(--knn-border-color);
}

.knn-postsnavs-page .posts-nav-box-title {
    font-weight: 600;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--knn-border-color);
}

.knn-postsnavs-page .posts-nav-box-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 60vh;
    overflow-y: auto;
}

.knn-postsnavs-page .posts-nav-box-list li {
    line-height: 2;
}

.knn-postsnavs-page .posts-nav-box-list a {
    display: block;
    padding: 0 8px;
    border-radius: 3px;
    color: var(--knn-text-color);
}

.knn-postsnavs-page .posts-nav-box-list li.active a,
.knn-postsnavs-page .posts-nav-box-list a:hover {
    color: var(--knn-color-primary);
    background: rgba(0, 122, 255, 0.06);
}

/* 设置弹窗 */
.navs-settings-mask {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: rgba(0, 0, 0, 0.5);
}

.navs-settings-mask.is-open {
    display: block;
}

.navs-settings-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    max-width: calc(100vw - 30px);
    max-height: 85vh;
    overflow-y: auto;
    border-radius: 8px;
    background: var(--knn-bg-color-card);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.navs-settings-modal.is-open {
    display: block;
}

.navs-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--knn-border-color);
    font-weight: 600;
}

.navs-settings-close {
    color: var(--knn-text-color-grey, #999);
    font-size: 18px;
}

.navs-settings-close:hover {
    color: var(--knn-text-color);
}

.navs-settings-body {
    padding: 20px;
}

.navs-form-group {
    margin-bottom: 15px;
}

.navs-form-group > label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

.navs-form-group input[type="text"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--knn-border-color);
    border-radius: var(--knn-border-radius);
    background: var(--knn-bg-color-card);
    color: var(--knn-text-color);
}

.navs-form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--knn-color-primary);
}

/* 双栏分类选择 */
.navs-cat-cols {
    display: flex;
    gap: 12px;
    text-align: center;
}

.navs-cat-col {
    flex: 1;
    min-width: 0;
}

.navs-cat-col > p {
    margin: 0 0 6px;
}

.navs-cat-col .cat-group {
    min-height: 140px;
    max-height: 260px;
    overflow-y: auto;
    padding: 8px;
    border: 1px dashed var(--knn-border-color);
    border-radius: var(--knn-border-radius);
    text-align: left;
}

.sortable-cat-item {
    display: block;
    margin-bottom: 6px;
    padding: 5px 10px;
    border-radius: 3px;
    background: var(--knn-bg-color);
    cursor: pointer;
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sortable-cat-item:hover {
    background: rgba(0, 122, 255, 0.08);
    color: var(--knn-color-primary);
}

.sortable-cat-item .cat-badge {
    float: right;
    padding: 0 6px;
    border-radius: 8px;
    font-size: 12px;
    background: var(--knn-border-color);
    color: var(--knn-text-color-grey, #999);
}

.navs-settings-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--knn-border-color);
    text-align: right;
}

.navs-settings-save {
    padding: 8px 24px;
    border: 0;
    border-radius: var(--knn-border-radius);
    background: var(--knn-color-primary);
    color: #fff;
    cursor: pointer;
}

.navs-settings-save:disabled {
    opacity: .6;
    cursor: not-allowed;
}

/* 移动端 */
@media screen and (max-width: 767px) {
    .navs-cat-cols {
        flex-direction: column;
    }
}