/**
 * KNN-网址导航 页面样式（自包含）
 * 搜索封面 + 四种链接卡片
 * + 多分类双栏（左锚点导航 sticky）+ 申请友链弹窗
 */

/* ==================== 搜索封面 ==================== */
.knn-links-nav-page .link-page-search-cover {
    position: relative;
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    min-height: 220px;
    background: linear-gradient(135deg, var(--knn-color-primary), #5ac8fa);
}

.knn-links-nav-page .link-page-search-cover .cover-img {
    display: block;
    width: 100%;
    height: 260px;
    object-fit: cover;
}

.knn-links-nav-page .cover-search {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 560px;
    text-align: center;
}

.knn-links-nav-page .cover-search-title {
    color: #fff;
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 12px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.knn-links-nav-page .links-search-nav {
    display: flex;
    justify-content: center;
    gap: 4px;
    list-style: none;
    margin: 0 0 10px;
    padding: 0;
    overflow-x: auto;
}

.knn-links-nav-page .links-search-nav a {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 14px;
    color: #fff;
    font-size: 13px;
    white-space: nowrap;
}

.knn-links-nav-page .links-search-nav li.active a {
    background: rgba(255, 255, 255, 0.25);
}

.knn-links-nav-page .links-search-pane {
    display: none;
}

.knn-links-nav-page .links-search-pane.active {
    display: block;
}

.knn-links-nav-page .links-search-form {
    display: flex;
    border-radius: 24px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.knn-links-nav-page .links-search-input {
    flex: 1;
    min-width: 0;
    padding: 12px 20px;
    border: 0;
    outline: none;
    background: transparent;
    color: #333;
}

.knn-links-nav-page .links-search-but {
    padding: 0 24px;
    border: 0;
    cursor: pointer;
    background: transparent;
    color: var(--knn-color-primary);
}

.knn-links-nav-page .links-search-but .icon {
    width: 1.2em;
    height: 1.2em;
    fill: currentColor;
    vertical-align: middle;
}

/* ==================== 双栏布局 ==================== */
.knn-links-nav-page .links-fixed-wrap {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.knn-links-nav-page .links-fixed-nav {
    width: 160px;
    flex-shrink: 0;
    position: sticky;
    top: 80px;
}

.knn-links-nav-page .links-fixed-content {
    flex: 1;
    min-width: 0;
}

.knn-links-nav-page .links-cat-nav {
    list-style: none;
    margin: 0 0 12px;
    padding: 8px;
    border: 1px solid var(--knn-border-color);
    border-radius: var(--knn-border-radius);
    background: var(--knn-bg-color-card);
    max-height: 60vh;
    overflow-y: auto;
}

.knn-links-nav-page .links-cat-nav a {
    display: block;
    padding: 7px 10px;
    border-radius: 3px;
    color: var(--knn-text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.knn-links-nav-page .links-cat-nav a:hover {
    background: rgba(0, 122, 255, 0.06);
    color: var(--knn-color-primary);
}

/* 分组标题 */
.knn-links-nav-page .links-cat-box {
    margin-bottom: 20px;
}

.knn-links-nav-page .links-cat-header {
    position: relative;
    font-size: var(--knn-font-size-lg);
    font-weight: 600;
    margin-bottom: 12px;
    padding-left: 12px;
    scroll-margin-top: 80px;
}

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

/* ==================== 链接卡片（四样式） ==================== */
.knn-links-nav-page .links-box {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.knn-links-nav-page .links-card {
    border: 1px solid var(--knn-border-color);
    border-radius: 8px;
    background: var(--knn-bg-color-card);
    transition: box-shadow .2s, transform .2s;
    overflow: hidden;
}

.knn-links-nav-page .links-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

/* card 默认：图 + 标题/简介 横排 */
.knn-links-nav-page .links-style-card .links-card {
    width: calc(25% - 9px);
}

.knn-links-nav-page .links-style-card .links-card > a {
    display: block;
    padding: 12px;
    color: var(--knn-text-color);
}

.knn-links-nav-page .links-style-card .list-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.knn-links-nav-page .links-style-card .list-inline > li:last-child {
    flex: 1;
    min-width: 0;
}

.knn-links-nav-page .links-style-card dl {
    margin: 0;
}

.knn-links-nav-page .links-style-card dt {
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* bigcard：竖排大卡 */
.knn-links-nav-page .links-style-bigcard .links-card {
    width: calc(25% - 9px);
    text-align: center;
}

.knn-links-nav-page .links-style-bigcard .links-card > a {
    display: block;
    padding: 20px 12px;
    color: var(--knn-text-color);
}

.knn-links-nav-page .links-style-bigcard .link-img {
    margin: 0 auto;
}

.knn-links-nav-page .links-style-bigcard .mt20 {
    margin-top: 14px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 图标容器与图片 */
.knn-links-nav-page .link-img {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    background: var(--knn-bg-color);
}

.knn-links-nav-page .link-img .avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 简介 */
.knn-links-nav-page .avatar-dest {
    margin: 3px 0 0;
    font-size: .9em;
    color: var(--knn-text-color-grey, #999);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* image：纯图标 */
.knn-links-nav-page .links-style-image .link-only-img {
    width: 56px;
    height: 56px;
    border: 1px solid var(--knn-border-color);
    transition: transform .2s;
}

.knn-links-nav-page .links-style-image .link-only-img:hover {
    transform: translateY(-2px);
}

/* simple：纯文字 */
.knn-links-nav-page .links-style-simple {
    display: block;
    line-height: 2.2;
}

.knn-links-nav-page .links-style-simple a {
    color: var(--knn-text-color);
    margin-right: 4px;
}

.knn-links-nav-page .links-style-simple a:hover {
    color: var(--knn-color-primary);
}

.knn-links-nav-page .links-style-simple a.icon-spot::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--knn-text-color-grey, #999);
    margin: 0 10px 0 6px;
    vertical-align: middle;
}

/* 空态 */
.knn-links-nav-page .links-empty {
    padding: 30px 0;
    text-align: center;
}

/* 申请按钮 */
.knn-links-nav-page .links-submit-but {
    display: block;
    padding: 8px 10px;
    border: 1px solid var(--knn-color-primary);
    border-radius: var(--knn-border-radius);
    color: var(--knn-color-primary);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.knn-links-nav-page .links-submit-but:hover {
    background: var(--knn-color-primary);
    color: #fff;
}

.knn-links-nav-page .link-cat-submit {
    margin-top: 15px;
}

/* 正文分隔 */
.knn-links-nav-page .links-page-content {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--knn-border-color);
}

/* ==================== 申请友链弹窗 ==================== */
.links-submit-mask {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: rgba(0, 0, 0, 0.5);
}

.links-submit-mask.is-open {
    display: block;
}

.links-submit-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 480px;
    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);
}

.links-submit-modal.is-open {
    display: block;
}

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

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

.links-submit-close:hover {
    color: var(--knn-text-color);
}

.links-submit-body {
    padding: 20px;
}

.links-submit-login {
    text-align: center;
    padding: 20px 0;
}

.links-form-group {
    margin-bottom: 14px;
}

.links-form-group > label {
    display: block;
    margin-bottom: 6px;
    font-size: .9em;
    color: var(--knn-text-color-grey, #999);
}

.links-form-group input[type="text"],
.links-form-group select {
    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);
}

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

.links-submit-footer {
    text-align: center;
    margin-top: 6px;
}

.links-submit-save {
    display: inline-block;
    padding: 9px 32px;
    border: 0;
    border-radius: var(--knn-border-radius);
    background: var(--knn-color-primary);
    color: #fff;
    cursor: pointer;
}

.links-submit-save:hover {
    opacity: .85;
    color: #fff;
}

.links-submit-save:disabled {
    opacity: .6;
    cursor: not-allowed;
}

/* ==================== 暗色模式 ==================== */
body.dark-mode .knn-links-nav-page .links-search-form {
    background: rgba(30, 30, 30, 0.92);
}

body.dark-mode .knn-links-nav-page .links-search-input {
    color: var(--knn-text-color);
}

/* ==================== 移动端 ==================== */
@media screen and (max-width: 991px) {
    .knn-links-nav-page .links-style-card .links-card,
    .knn-links-nav-page .links-style-bigcard .links-card {
        width: calc(33.33% - 8px);
    }
}

@media screen and (max-width: 767px) {
    /* 双栏塌陷：左导航横排置顶 */
    .knn-links-nav-page .links-fixed-wrap {
        flex-direction: column;
    }

    .knn-links-nav-page .links-fixed-nav {
        width: 100%;
        position: static;
    }

    .knn-links-nav-page .links-cat-nav {
        display: flex;
        gap: 4px;
        max-height: none;
        overflow-x: auto;
    }

    .knn-links-nav-page .links-cat-nav a {
        padding: 5px 12px;
    }

    .knn-links-nav-page .links-style-card .links-card,
    .knn-links-nav-page .links-style-bigcard .links-card {
        width: calc(50% - 6px);
    }

    .knn-links-nav-page .link-page-search-cover .cover-img {
        height: 200px;
    }
}