/* 横幅区域 */
.k8-article-banner {
    height: 400px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.k8-article-banner-container {
    width: 100%;
}


.k8-article-banner-content {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.k8-article-banner-title {
    font-size: 40px;
    font-weight: 600;
    margin: 0 0 var(--k8-space-2) 0;
    color: var(--k8-text-primary);
}

.k8-article-banner-subtitle {
    font-size: 16px;
    margin: 0 0 var(--k8-space-5) 0;
    opacity: 0.95;
    color: var(--k8-text-primary);
}

.k8-article-search-form {
    width: 650px;
    margin: 0 auto;
    text-align: center;
}

.k8-article-search-input-wrapper {
    display: flex;
    margin-bottom: var(--k8-space-4);
    border-radius: 28px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.k8-article-search-input {
    flex: 1;
    padding: var(--k8-space-3) var(--k8-space-4);
    border: none;
    font-size: 16px;
    outline: none;
    background: transparent;
    color: var(--k8-text-primary);
}

.k8-article-search-input::placeholder {
    color: var(--k8-text-secondary);
}

.k8-article-search-input:focus {
    outline: none !important;
    box-shadow: none !important;
    border: none !important;
}

.k8-article-search-btn {
    background: var(--k8-primary);
    color: var(--k8-white);
    border: none;
    padding: var(--k8-space-3) var(--k8-space-4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--k8-transition-fast);
}

.k8-article-search-btn:hover {
    background: var(--k8-primary-gradient);
}

.k8-article-search-tags {
    display: flex;
    justify-content: center;
    gap: var(--k8-space-2);
    flex-wrap: wrap;
}

.k8-search-tag {
    padding: 8px 12px;
    background: var(--k8-white);
    color: var(--k8-text-primary);
    text-decoration: none;
    border-radius: 20px;
    font-size: 13px;
}

.k8-search-tag:hover {
    background: var(--k8-primary);
    color: var(--k8-white);
}



/* ================================
   文章列表主要内容区域
   ================================ */

.k8-article-main-section {
    padding: var(--k8-space-5);
    background: var(--k8-bg-light);
    min-height: 100vh;
}

.k8-article-main-container {
    max-width: var(--k8-container-xxl);
    margin: 0 auto;
    padding: 0 var(--k8-space-3);
}

.k8-article-main-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--k8-space-4);
}

/* ================================
   左侧文章列表区域
   ================================ */

.k8-article-list-area {
    min-height: 600px;
}

/* 搜索结果提示 */
.k8-search-results-info {
    margin-bottom: var(--k8-space-4);
    padding: var(--k8-space-2) var(--k8-space-3);
    background: rgba(27, 92, 230, 0.05);
    border: 1px solid rgba(27, 92, 230, 0.15);
    border-radius: var(--k8-radius);
}

.k8-search-results-text {
    display: flex;
    align-items: center;
    gap: var(--k8-space-2);
    color: var(--k8-text-primary);
    font-size: 14px;
}

.k8-search-results-text i {
    color: var(--k8-primary);
}

.k8-search-keyword {
    font-weight: 600;
    color: var(--k8-primary);
}

.k8-search-count {
    font-weight: 600;
    color: var(--k8-primary);
}

.k8-clear-search {
    margin-left: auto;
    padding: var(--k8-space-1) var(--k8-space-2);
    background: var(--k8-white);
    color: var(--k8-text-secondary);
    border: 1px solid var(--k8-border-light);
    border-radius: var(--k8-radius-sm);
    font-size: 12px;
    text-decoration: none;
    transition: all var(--k8-transition-fast);
}

.k8-clear-search:hover {
    background: var(--k8-lighter);
    color: var(--k8-text-primary);
    text-decoration: none;
}

/* 文章筛选按钮样式 */
.k8-article-filter-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--k8-space-2);
    margin-bottom: var(--k8-space-4);
}

.k8-filter-btn {
    padding: var(--k8-space-2) var(--k8-space-3);
    border: 1px solid var(--k8-border-light);
    background: var(--k8-white);
    color: var(--k8-text-secondary);
    font-size: 14px;
    border-radius: var(--k8-radius-md);
    cursor: pointer;
    transition: all var(--k8-transition-fast);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--k8-space-2);
    text-decoration: none;
    white-space: nowrap;
}

.k8-filter-btn:hover {
    border-color: var(--k8-primary);
    color: var(--k8-primary);
    background: rgba(27, 92, 230, 0.05);
}

.k8-filter-btn.k8-filter-active {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}


.k8-filter-btn.k8-filter-active .k8-category-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--k8-white);
}


/* 文章卡片样式 */
.k8-article-list {
    display: flex;
    flex-direction: column;
    gap: var(--k8-space-3);
}

.k8-article-card {
    border: 1px solid var(--k8-border-light);
    overflow: hidden;
}

.k8-article-card:hover {
    border-color: var(--k8-primary);
}

.k8-article-card-content {
    padding: var(--k8-space-4);
}

.k8-article-card-header {
    margin-bottom: var(--k8-space-2);
}

.k8-article-card-title {
    margin: 0 0 var(--k8-space-2) 0;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
}

.k8-article-card-title a {
    color: var(--k8-text-primary);
    text-decoration: none;
    transition: color var(--k8-transition-fast);
    display: inline;
}

.k8-article-card-title a:hover {
    color: var(--k8-primary);
}

/* 置顶图标样式 */
.k8-article-top-icon {
    display: inline;
    width: 56px;
    vertical-align: middle;
}

.k8-article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--k8-space-3);
    font-size: 13px;
    color: var(--k8-text-secondary);
}

.k8-article-category {
    background: rgba(27, 92, 230, 0.1);
    color: var(--k8-primary);
    border: 1px solid var(--k8-primary);
    padding: 2px 4px;
    font-size: 10px;
    font-weight: 500;
}

.k8-article-date {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
}

.k8-article-views {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
}

.k8-article-views i {
    font-size: 14px;
}

.k8-article-card-description {
    color: var(--k8-text-secondary);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ================================
   分页导航样式
   ================================ */

.k8-article-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--k8-space-2);
    margin-top: var(--k8-space-5);
    padding: var(--k8-space-3) 0;
}

.k8-pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
    padding: var(--k8-space-2) var(--k8-space-3);
    border: 1px solid var(--k8-border);
    background: var(--k8-white);
    color: var(--k8-text-primary);
    border-radius: var(--k8-radius);
    cursor: pointer;
    transition: all var(--k8-transition-fast);
    font-size: 14px;
}

.k8-pagination-btn:hover:not(:disabled) {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}

.k8-pagination-btn:disabled,
.k8-pagination-btn.k8-pagination-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.k8-pagination-btn {
    text-decoration: none;
}

.k8-pagination-numbers {
    display: flex;
    gap: var(--k8-space-1);
}

.k8-pagination-num {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--k8-border);
    background: var(--k8-white);
    color: var(--k8-text-primary);
    border-radius: var(--k8-radius);
    cursor: pointer;
    transition: all var(--k8-transition-fast);
    font-size: 14px;
}

.k8-pagination-num:hover {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}

.k8-pagination-num.k8-pagination-active {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}

.k8-pagination-dots {
    display: flex;
    align-items: center;
    padding: 0 var(--k8-space-2);
    color: var(--k8-text-secondary);
}

/* ================================
   右侧侧边栏样式
   ================================ */

.k8-article-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--k8-space-4);
}

/* 分类导航样式 */
.k8-article-categories {
    border: 1px solid var(--k8-border-light);
    overflow: hidden;
}

.k8-categories-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--k8-text-primary);
    margin: 0;
    padding: var(--k8-space-3);
    border-bottom: 1px solid var(--k8-border-light);
    background: var(--k8-light);
    position: relative;
    padding-left: var(--k8-space-4);
}

.k8-categories-title::before {
    content: '';
    position: absolute;
    left: var(--k8-space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 15px;
    background: var(--k8-primary);
}

.k8-category-list {
    display: flex;
    flex-direction: column;
}

.k8-category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--k8-space-3);
    text-decoration: none;
    border-bottom: 1px solid var(--k8-border-light);
    transition: all var(--k8-transition-fast);
}

.k8-category-item:last-child {
    border-bottom: none;
}

.k8-category-item:hover {
    background: var(--k8-light);
}

.k8-category-info {
    display: flex;
    align-items: center;
    gap: var(--k8-space-3);
}

.k8-category-info i {
    font-size: 18px;
    color: var(--k8-primary);
}

.k8-category-name {
    font-weight: 500;
    color: var(--k8-text-primary);
}

.k8-category-count {
    color: var(--k8-text-secondary);
    font-size: 13px;
    background: var(--k8-lighter);
    padding: 2px 6px;
    border-radius: var(--k8-radius-sm);
}

/* 热门文章样式 */
.k8-article-hot-widget {
    border: 1px solid var(--k8-border-light);
    overflow: hidden;
}

.k8-hot-widget-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--k8-text-primary);
    margin: 0;
    padding: var(--k8-space-3);
    border-bottom: 1px solid var(--k8-border-light);
    background: var(--k8-light);
    position: relative;
    padding-left: var(--k8-space-4);
}

.k8-hot-widget-title::before {
    content: '';
    position: absolute;
    left: var(--k8-space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 15px;
    background: var(--k8-primary);
}

.k8-hot-articles {
    display: flex;
    flex-direction: column;
}

.k8-hot-article-item {
    display: block;
    padding: var(--k8-space-3);
    text-decoration: none;
    border-bottom: 1px solid var(--k8-border-light);
    transition: all var(--k8-transition-fast);
}

.k8-hot-article-item:last-child {
    border-bottom: none;
}

.k8-hot-article-item:hover {
    background: var(--k8-light);
}

.k8-hot-article-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--k8-text-primary);
    line-height: 1.4;
    margin-bottom: var(--k8-space-2);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.k8-hot-article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.k8-hot-views {
    color: var(--k8-text-secondary);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
}

.k8-hot-views::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z'%3E%3C/path%3E%3Ccircle cx='12' cy='12' r='3'%3E%3C/circle%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-size: contain;
}

/* 空状态样式 */
.k8-empty-state {
    padding: var(--k8-space-4);
    text-align: center;
    color: var(--k8-text-secondary);
    font-size: 14px;
}

/* 文章目录样式 */
.k8-article-toc-widget {
    position: -webkit-sticky !important;
    position: sticky !important;
    top: 100px !important;
    max-height: calc(100vh - 130px);
    border: 1px solid var(--k8-border-light);
    overflow: hidden;
    z-index: 10;
    background: var(--k8-white);
    width: 100%;
    box-sizing: border-box;
    align-self: flex-start;
}

.k8-toc-header {
    padding: var(--k8-space-3);
    background: var(--k8-light);
    border-bottom: 1px solid var(--k8-border-light);
    position: relative;
    padding-left: var(--k8-space-4);
}

.k8-toc-header::before {
    content: '';
    position: absolute;
    left: var(--k8-space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 15px;
    background: var(--k8-primary);
}

.k8-toc-icon {
    display: none;
}

.k8-toc-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--k8-text-primary);
    margin: 0;
}

.k8-toc-container {
    max-height: 350px;
    overflow-y: auto;
}

.k8-toc-content {
    padding: var(--k8-space-2) 0;
}

.k8-toc-item {
    padding: var(--k8-space-1) var(--k8-space-3);
    display: block;
    cursor: pointer;
}

.k8-toc-item-text {
    font-size: 12px;
    line-height: 1.5;
    color: var(--k8-text-secondary);
    margin: 0;
    transition: color var(--k8-transition-fast);
}

.k8-toc-item:hover .k8-toc-item-text {
    color: var(--k8-primary);
}

.k8-toc-item.k8-toc-active {
    border-left: 3px solid var(--k8-primary);
    margin-left: -3px;
}

.k8-toc-item.k8-toc-active .k8-toc-item-text {
    color: var(--k8-primary);
    font-weight: 600;
}



.k8-toc-loading {
    padding: var(--k8-space-2);
}

.k8-toc-loading-text {
    color: var(--k8-text-secondary);
    font-size: 12px;
    margin: 0;
}

.k8-toc-empty {
    padding: var(--k8-space-2);
}

.k8-toc-empty-text {
    color: var(--k8-text-secondary);
    font-size: 12px;
    margin: 0;
}

/* ================================
   文章内容页面样式
   ================================ */

/* 面包屑导航 */
.k8-breadcrumb-section {
    padding: var(--k8-space-3) 0;
    padding-top: 80px; /* 桌面端导航栏高度 */
}

.k8-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
    font-size: 14px;
}

.k8-breadcrumb-item {
    color: var(--k8-text-secondary);
    text-decoration: none;
    transition: color var(--k8-transition-fast);
}

.k8-breadcrumb-item:hover {
    color: var(--k8-primary);
}

.k8-breadcrumb-current {
    color: var(--k8-text-primary);
    font-weight: 500;
}

.k8-breadcrumb-separator {
    color: var(--k8-text-secondary);
    margin: 0 var(--k8-space-1);
}

/* 文章内容区域 */
.k8-article-content-area {
    min-height: 600px;
}

.k8-article-content-main {
    background: var(--k8-white);
    padding: var(--k8-space-4);
    box-shadow: var(--k8-shadow-sm);
    border: 1px solid var(--k8-border-light);
    min-height: calc(100vh - 200px);
}

/* 文章头部 */
.k8-article-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--k8-text-primary);
    margin: 0 0 var(--k8-space-4);
    display: inline-flex;
    align-items: center;
    gap: var(--k8-space-2);
}

.k8-article-meta {
    display: flex;
    align-items: center;
    gap: var(--k8-space-3);
    padding-bottom: var(--k8-space-3);
    border-bottom: 1px solid var(--k8-border-light);
}

.k8-meta-item {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
    font-size: 13px;
    color: var(--k8-text-secondary);
}

.k8-meta-category .k8-article-category {
    background: rgba(27, 92, 230, 0.1);
    color: var(--k8-primary);
    border: 1px solid var(--k8-primary);
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
}

.k8-meta-icon {
    display: flex;
    align-items: center;
    color: var(--k8-text-secondary);
}

.k8-meta-icon i {
    font-size: 14px;
}

.k8-meta-text {
    white-space: nowrap;
}


/* 文章标签 */
.k8-article-tags {
    margin-top: var(--k8-space-6);
    padding-top: var(--k8-space-4);
    border-top: 1px solid var(--k8-border-light);
}

/* 上一篇下一篇导航 */
.k8-article-next {
    margin-top: var(--k8-space-4);
    padding-top: var(--k8-space-4);
    border-top: 1px solid var(--k8-border-light);
    display: flex;
    gap: var(--k8-space-3);
}

.k8-next-item {
    flex: 1;
}

.k8-prev-article .k8-next-link {
    text-align: left;
}

.k8-next-article .k8-next-link {
    text-align: right;
}

.k8-next-article .k8-next-direction {
    flex-direction: row-reverse;
}

.k8-next-link {
    display: block;
    padding: var(--k8-space-3);
    background: var(--k8-lighter);
    border: 1px solid var(--k8-border-light);
    text-decoration: none;
    color: inherit;
    min-height: 60px;
}

.k8-next-link:hover {
    background: var(--k8-white);
    border-color: var(--k8-primary);
}

.k8-next-link.k8-next-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.k8-next-link.k8-next-disabled:hover {
    background: var(--k8-lighter);
    border-color: var(--k8-border-light);
    transform: none;
    box-shadow: none;
}

.k8-next-direction {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
    font-size: 12px;
    color: var(--k8-text-secondary);
    margin-bottom: var(--k8-space-1);
}

.k8-next-direction i {
    font-size: 14px;
}

.k8-next-title {
    font-size: 14px;
    color: var(--k8-text-primary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.k8-article-tags-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--k8-text-primary);
    margin: 0 0 var(--k8-space-3);
}

.k8-article-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--k8-space-2);
}

.k8-article-tag {
    padding: 4px 8px;
    background: var(--k8-lighter);
    color: var(--k8-text-secondary);
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
}

.k8-article-tag:hover {
    background: var(--k8-primary);
    color: var(--k8-white);
}

/* 文章操作 */
.k8-article-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: var(--k8-space-6);
    padding-top: var(--k8-space-4);
    border-top: 1px solid var(--k8-border-light);
}

.k8-article-action-btn {
    display: flex;
    align-items: center;
    gap: var(--k8-space-1);
    padding: var(--k8-space-2) var(--k8-space-4);
    background: var(--k8-white);
    color: var(--k8-text-secondary);
    border: 1px solid var(--k8-border);
    border-radius: var(--k8-radius);
    cursor: pointer;
    transition: all var(--k8-transition-fast);
    text-decoration: none;
    font-size: 14px;
}

.k8-article-action-btn:hover {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}

.k8-article-share {
    display: flex;
    align-items: center;
    gap: var(--k8-space-2);
}

.k8-share-label {
    font-size: 14px;
    color: var(--k8-text-secondary);
    margin-right: var(--k8-space-1);
}

.k8-share-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--k8-white);
    border: 1px solid var(--k8-border);
    border-radius: var(--k8-radius);
    color: var(--k8-text-secondary);
    text-decoration: none;
    transition: all var(--k8-transition-fast);
}

.k8-share-btn:hover {
    background: var(--k8-primary);
    color: var(--k8-white);
    border-color: var(--k8-primary);
}

/* 文章不存在 */
.k8-article-not-found {
    text-align: center;
    padding: var(--k8-space-8) var(--k8-space-6);
}

.k8-not-found-icon {
    font-size: 64px;
    color: var(--k8-text-secondary);
    margin-bottom: var(--k8-space-4);
}

.k8-article-not-found h2 {
    color: var(--k8-text-primary);
    margin: 0 0 var(--k8-space-2);
    font-size: 24px;
}

.k8-article-not-found p {
    color: var(--k8-text-secondary);
    margin: 0 0 var(--k8-space-4);
    font-size: 16px;
}

/* ================================
   响应式设计系统
   ================================ */

/* 超大屏幕优化 (1400px+) */
@media (min-width: 1400px) {
    .k8-article-main-container {
        max-width: 1400px;
        padding: 0 var(--k8-space-6);
    }
    
    .k8-article-main-grid {
        grid-template-columns: 1fr 350px;
        gap: var(--k8-space-4);
    }
    
    .k8-article-banner-title {
        font-size: 48px;
    }
    
    .k8-article-search-form {
        width: 800px;
    }
}

/* 大屏幕优化 (1200px - 1399px) */
@media (max-width: 1399px) and (min-width: 1200px) {
    .k8-article-main-container {
        max-width: 1200px;
        padding: 0 var(--k8-space-5);
    }
    
    .k8-article-main-grid {
        grid-template-columns: 1fr 320px;
        gap: var(--k8-space-4);
    }
}

/* 中等屏幕优化 (992px - 1199px) */
@media (max-width: 1199px) and (min-width: 992px) {
    .k8-article-main-container {
        padding: 0 var(--k8-space-4);
    }
    
    .k8-article-main-grid {
        grid-template-columns: 1fr 300px;
        gap: var(--k8-space-4);
    }
    
    .k8-article-search-form {
        width: 600px;
    }
    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: var(--k8-space-2);
    }
}

/* 小屏幕平板 (769px - 991px) */
@media (max-width: 991px) and (min-width: 769px) {
    .k8-breadcrumb-section {
        padding-top: 75px; /* 平板端适中间距 */
    }
    
    .k8-article-main-container {
        padding: 0 var(--k8-space-4);
    }
    
    .k8-article-main-grid {
        grid-template-columns: 1fr 280px;
        gap: var(--k8-space-4);
    }
    
    .k8-article-banner-title {
        font-size: 36px;
    }
    
    .k8-article-search-form {
        width: 500px;
    }
    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-2);
        font-size: 13px;
    }
}



/* 大手机屏幕 (576px - 639px) */
@media (max-width: 639px) and (min-width: 576px) {
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-article-banner {
        height: 350px;
    }
    
    .k8-article-banner-content {
        top: 50%;
        padding: 0 var(--k8-space-4);
        width: calc(100% - var(--k8-space-4));
    }
    
    .k8-article-banner-title {
        font-size: 32px;
    }
    
    .k8-article-banner-subtitle {
        font-size: 15px;
        margin: 0 0 var(--k8-space-4) 0;
    }
    
    .k8-article-main-section {
        padding: var(--k8-space-4) var(--k8-space-3);
    }
    
    .k8-article-main-container {
        padding: 0 var(--k8-space-2);
    }
    
    .k8-article-main-grid {
        gap: var(--k8-space-3);
    }
    

    
    /* 搜索样式局部调整 - 继承基础样式，只定义差异 */
    .k8-article-search-form {
        max-width: 480px;
        padding: 0 var(--k8-space-2);
    }
    
    .k8-article-search-input-wrapper {
        border-radius: 22px;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
        background: rgba(255, 255, 255, 0.96);
        border: 1px solid rgba(255, 255, 255, 0.4);
    }
    
    .k8-article-search-input {
        padding: var(--k8-space-2);
    }
    
    .k8-article-search-btn {
        padding: var(--k8-space-2);
    }
    
    .k8-article-search-btn i {
        font-size: 16px;
    }
    
    .k8-article-search-tags {
        gap: var(--k8-space-1);
        margin-top: var(--k8-space-3);
    }
    
    .k8-search-tag {
        padding: 6px 12px;
        font-size: 12px;
        border-radius: 16px;
        min-height: 32px;
    }
    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-2);
        font-size: 12px;
        min-width: auto;
    }
    
    .k8-article-card-content {
        padding: var(--k8-space-3);
    }
    
    .k8-article-card-title {
        font-size: 18px;
    }
    
    .k8-article-top-icon {
        width: 60px;
    }
    
    .k8-article-card-meta {
        flex-wrap: wrap;
        gap: var(--k8-space-2);
        font-size: 12px;
    }
    
    .k8-pagination-numbers {
        flex-wrap: wrap;
        gap: var(--k8-space-1);
    }
    
    .k8-pagination-num {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }
}

/* 超大手机屏幕 (520px - 575px) */
@media (max-width: 575px) and (min-width: 520px) {
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-article-main-grid {
        gap: var(--k8-space-3);
    }
    

    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-2);
        font-size: 12px;
    }
}

/* 普通手机屏幕 (480px - 519px) */
@media (max-width: 519px) and (min-width: 480px) {
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-article-banner {
        height: 320px;
    }
    
    .k8-article-banner-content {
        top: 50%;
        padding: 0 var(--k8-space-3);
        width: calc(100% - var(--k8-space-4));
    }
    
    .k8-article-banner-title {
        font-size: 28px;
    }
    
    .k8-article-banner-subtitle {
        font-size: 14px;
        margin: 0 0 var(--k8-space-3) 0;
    }
    
    .k8-article-main-section {
        padding: var(--k8-space-3) var(--k8-space-2);
    }
    
    .k8-article-main-container {
        padding: 0 var(--k8-space-1);
    }
    
    .k8-article-main-grid {
        gap: var(--k8-space-3);
    }
    

    
        /* 搜索样式调整 - 继承基础样式，只定义差异 */
    .k8-article-search-form {
        padding: 0 var(--k8-space-1);
    }
    
    .k8-article-search-input-wrapper {
        border-radius: 20px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(12px);
    }
    
    .k8-article-search-input {
        padding: 10px var(--k8-space-3);
    }
    
    .k8-article-search-input::placeholder {
        font-size: 14px;
    }
    
    .k8-article-search-btn {
        padding: 14px var(--k8-space-3);
    }
    
    .k8-article-search-btn i {
        font-size: 15px;
    }
    
    .k8-article-search-tags {
        gap: 8px;
        margin-top: var(--k8-space-2);
    }
    
    .k8-search-tag {
        padding: 6px 10px;
        font-size: 12px;
        border-radius: 14px;
        min-height: 28px;
        white-space: nowrap;
    }
    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-3);
        font-size: 13px;
        justify-content: space-between;
    }
    
    .k8-article-card-content {
        padding: var(--k8-space-3);
    }
    
    .k8-article-card-title {
        font-size: 16px;
        line-height: 1.3;
    }
    
    .k8-article-top-icon {
        width: 56px;
    }
}

/* 小手机屏幕 (最大479px) */
@media (max-width: 479px) {
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-article-banner {
        height: 280px;
    }
    
    .k8-article-banner-content {
        top: 50%;
        padding: 0 var(--k8-space-2);
        width: calc(100% - var(--k8-space-4));
    }
    
    .k8-article-banner-title {
        font-size: 24px;
        line-height: 1.2;
    }
    
    .k8-article-banner-subtitle {
        font-size: 13px;
        margin: 0 0 var(--k8-space-3) 0;
    }
    
    .k8-article-main-section {
        padding: var(--k8-space-2);
        min-height: auto;
    }
    
    .k8-article-main-container {
        padding: 0;
    }
    
    .k8-article-main-grid {
        gap: var(--k8-space-3);
    }
    

    
    .k8-article-search-form {
        width: 100%;
        padding: 0;
    }
    
    .k8-article-search-input-wrapper {
        display: flex;
        flex-direction: row;
        border-radius: 18px;
        margin-bottom: var(--k8-space-2);
        box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(255, 255, 255, 0.4);
        transition: all var(--k8-transition-fast);
    }
    

    
    .k8-article-search-input {
        flex: 1;
        border: none;
        border-radius: 18px 0 0 18px;
        padding: 10px var(--k8-space-2);
        font-size: 16px; /* 防止iOS缩放，即使在小屏幕 */
        min-height: 18px;
        background: transparent;
    }
    
    .k8-article-search-input::placeholder {
        font-size: 14px;
        color: var(--k8-text-secondary);
    }
    
    .k8-article-search-btn {
        background: var(--k8-primary);
        color: var(--k8-white);
        border: none;
        border-radius: 0 18px 18px 0;
        padding: 12px var(--k8-space-2);
        min-width: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all var(--k8-transition-fast);
    }
    
    .k8-article-search-btn:active {
        background: var(--k8-primary-gradient);
        transform: scale(0.97);
    }
    
    .k8-article-search-btn i {
        font-size: 14px;
    }
    
    .k8-article-search-tags {
        gap: 6px;
        justify-content: center;
        margin-top: var(--k8-space-1);
        padding: 0 var(--k8-space-1);
    }
    
    .k8-search-tag {
        padding: 4px 8px;
        font-size: 11px;
        border-radius: 12px;
        min-height: 24px;
        background: rgba(255, 255, 255, 0.8);
        border: 1px solid rgba(27, 92, 230, 0.15);
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .k8-search-tag:active {
        background: var(--k8-primary);
        color: var(--k8-white);
        transform: scale(0.95);
    }
    
    .k8-article-filter-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-2) var(--k8-space-3);
        font-size: 13px;
        justify-content: space-between;
        width: 100%;
    }
    
    .k8-article-list {
        gap: var(--k8-space-2);
    }
    
    .k8-article-card {
        overflow: hidden;
    }
    
    .k8-article-card-content {
        padding: var(--k8-space-3);
    }
    
    .k8-article-card-title {
        font-size: 15px;
        line-height: 1.3;
        margin-bottom: var(--k8-space-1);
    }
    
    .k8-article-top-icon {
        width: 42px;
    }
    
    .k8-article-card-meta {
        gap: var(--k8-space-1);
        font-size: 11px;
    }
    
    .k8-article-card-description {
        font-size: 13px;
        line-height: 1.4;
        -webkit-line-clamp: 3;
        line-clamp: 3;
    }
    
    .k8-pagination-numbers {
        justify-content: center;
        gap: 4px;
    }
    
    .k8-pagination-num {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    
    .k8-pagination-btn {
        padding: var(--k8-space-1) var(--k8-space-2);
        font-size: 12px;
    }
    
    /* 文章内容页面样式 */
    .k8-article-content-main {
        padding: var(--k8-space-2);
        margin: 0 -var(--k8-space-1);
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .k8-article-title {
        font-size: 20px;
        line-height: 1.2;
    }
    
    .k8-breadcrumb {
        font-size: 12px;
    }
    
    .k8-article-meta {
        gap: var(--k8-space-1);
    }
    
    .k8-meta-item {
        font-size: 11px;
    }
    
    .k8-next-link {
        padding: var(--k8-space-2);
    }
    
    .k8-next-title {
        font-size: 12px;
        -webkit-line-clamp: 1;
        line-clamp: 1;
    }
    
    .k8-article-share {
        gap: var(--k8-space-2);
    }
    
    .k8-share-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
}

/* 移动端通用样式继承 - 768px以下统一样式 */
@media (max-width: 768px) {
    .k8-article-sidebar {
        display: none;
    }
    
    .k8-article-main-grid {
        grid-template-columns: 1fr;
    }
    
    /* 移动端通用搜索样式 */
    .k8-article-search-form {
        width: 100%;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .k8-article-search-input-wrapper {
        display: flex;
        flex-direction: row;
        margin-bottom: var(--k8-space-3);
        border-radius: 25px;
        overflow: hidden;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(15px);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.3);
        transition: all var(--k8-transition-fast);
    }
    
    .k8-article-search-input {
        flex: 1;
        padding: var(--k8-space-2) var(--k8-space-4);
        border: none;
        font-size: 16px; /* 防止iOS缩放 */
        outline: none;
        background: transparent;
        color: var(--k8-text-primary);
        min-height: 20px;
    }
    
    .k8-article-search-input:focus {
        outline: none !important;
        box-shadow: none !important;
        border: none !important;
    }
    
    .k8-article-search-input::placeholder {
        color: var(--k8-text-secondary);
        font-size: 15px;
    }
    
    .k8-article-search-btn {
        background: var(--k8-primary);
        color: var(--k8-white);
        border: none;
        padding: var(--k8-space-2) var(--k8-space-4);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all var(--k8-transition-fast);
        min-width: 50px; /* 触摸友好的最小尺寸 */
        border-radius: 0;
    }
    
    .k8-article-search-btn:hover,
    .k8-article-search-btn:active {
        background: var(--k8-primary-gradient);
        transform: scale(0.98);
    }
    
    .k8-article-search-btn i {
        font-size: 18px;
    }
    
    .k8-article-search-tags {
        display: flex;
        justify-content: center;
        gap: var(--k8-space-2);
        flex-wrap: wrap;
        margin-top: var(--k8-space-2);
    }
    
    .k8-search-tag {
        padding: 8px 14px;
        background: rgba(255, 255, 255, 0.9);
        color: var(--k8-text-primary);
        text-decoration: none;
        border-radius: 18px;
        font-size: 13px;
        border: 1px solid rgba(27, 92, 230, 0.2);
        transition: all var(--k8-transition-fast);
        backdrop-filter: blur(10px);
        min-height: 36px;
        display: flex;
        align-items: center;
    }
    
    .k8-search-tag:hover,
    .k8-search-tag:active {
        background: var(--k8-primary);
        color: var(--k8-white);
        border-color: var(--k8-primary);
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(27, 92, 230, 0.3);
    }
}

/* 中等移动设备通用样式 (640px - 768px) - 合并筛选、搜索功能和文章内容页面 */
@media (max-width: 768px) and (min-width: 640px) {
    /* 网格布局调整 - 继承侧边栏隐藏，设置gap */
    .k8-article-main-grid {
        gap: var(--k8-space-4);
    }
    
    /* 筛选按钮样式 */
    .k8-article-filter-buttons {
        grid-template-columns: repeat(auto-fit, minmax(85px, 1fr));
        gap: var(--k8-space-2);
    }
    
    .k8-filter-btn {
        padding: var(--k8-space-2);
        font-size: 13px;
    }
    
    /* Banner样式 - 继承搜索样式，只定义差异化属性 */
    .k8-article-banner {
        height: 400px;
    }
    
    .k8-article-banner-content {
        top: 50%;
        padding: 0 var(--k8-space-4);
        width: calc(100% - var(--k8-space-4));
    }
    
    .k8-article-banner-title {
        font-size: 32px;
    }
    
    .k8-article-banner-subtitle {
        margin: 0 0 var(--k8-space-4) 0;
    }
    
    /* 文章内容页面样式 - 合并面包屑样式避免冲突 */
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-breadcrumb {
        flex-wrap: wrap;
        font-size: 13px;
        gap: 4px;
    }
    
    .k8-article-content-main {
        padding: var(--k8-space-3);
        min-height: auto;
    }
    
    .k8-article-title {
        font-size: 22px;
        line-height: 1.3;
        margin-bottom: var(--k8-space-3);
    }
    
    .k8-article-meta {
        align-items: flex-start;
        gap: var(--k8-space-2);
        padding-bottom: var(--k8-space-2);
    }
    
    .k8-meta-item {
        font-size: 12px;
    }
    
    .k8-meta-category .k8-article-category {
        font-size: 10px;
        padding: 2px 6px;
    }
    
    .k8-article-actions {
        flex-direction: column;
        gap: var(--k8-space-3);
        align-items: stretch;
    }
    
    .k8-article-next {
        flex-direction: column;
        gap: var(--k8-space-2);
    }
    
    .k8-next-article .k8-next-link,
    .k8-prev-article .k8-next-link {
        text-align: left;
        padding: var(--k8-space-2);
        min-height: auto;
    }
    
    .k8-next-article .k8-next-direction {
        flex-direction: row;
    }
    
    .k8-next-title {
        font-size: 13px;
    }
    
    .k8-article-share {
        justify-content: center;
        gap: var(--k8-space-3);
    }
    

    
    .k8-article-tags-list {
        gap: var(--k8-space-1);
    }
    
    .k8-article-tag {
        padding: 3px 6px;
        font-size: 12px;
        border-radius: 3px;
    }
}



/* 横屏手机优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .k8-breadcrumb-section {
        padding: var(--k8-space-3) 0;
    }
    
    .k8-article-banner {
        height: 200px;
    }
    
    .k8-article-banner-content {
        top: 50%;
    }
    
    .k8-article-banner-title {
        font-size: 24px;
        margin-bottom: var(--k8-space-1);
    }
    
    .k8-article-banner-subtitle {
        margin-bottom: var(--k8-space-2);
    }
    
    .k8-article-search-form {
        margin-top: var(--k8-space-2);
        width: 100%;
        max-width: 400px;
        padding: 0 var(--k8-space-2);
    }
    
    .k8-article-search-input-wrapper {
        margin-bottom: var(--k8-space-1);
        border-radius: 16px;
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(10px);
        transition: all var(--k8-transition-fast);
        border: 1px solid rgba(255, 255, 255, 0.3);
    }
    

    
    .k8-article-search-input {
        padding: 12px var(--k8-space-2);
        font-size: 15px;
    }
    
    .k8-article-search-btn {
        padding: 10px var(--k8-space-2);
        min-width: 50px;
    }
    
    .k8-article-search-btn i {
        font-size: 13px;
    }
    
    .k8-article-search-tags {
        margin-top: var(--k8-space-1);
        gap: 4px;
        justify-content: center;
    }
    
    .k8-search-tag {
        padding: 2px 6px;
        font-size: 10px;
        min-height: 20px;
        border-radius: 10px;
    }
}

/* 高分辨率屏幕优化 */
@media (min-resolution: 2dppx), (min-resolution: 192dpi) {
    .k8-article-card {
        border-width: 0.5px;
    }
}



/* 减少动画的用户体验优化 */
@media (prefers-reduced-motion: reduce) {
    .k8-article-card,
    .k8-filter-btn,
    .k8-pagination-btn,
    .k8-pagination-num,
    .k8-article-action-btn,
    .k8-share-btn,
    .k8-next-link,
    .k8-category-item,
    .k8-hot-article-item,
    .k8-toc-item-text {
        transition: none !important;
    }
}