/*
==============================================
 AJAX Load More - Enhanced Styles (v3.3.0)
 完整後台設定支援版本
==============================================
*/

/* --- CSS 變數定義（預設為一般模式，深色模式由 PHP 動態覆蓋） --- */
:root {
    --alm-primary: #2c3e50;
    --alm-primary-hover: #34495e;
    --alm-accent: #3498db;
    --alm-text-dark: #2c3e50;
    --alm-text-light: #7f8c8d;
    --alm-border: #ecf0f1;
    --alm-bg-light: #ffffff;
    --alm-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --alm-shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
    --alm-radius: 12px;
    --alm-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 整體容器 --- */
.alm-section-wrapper {
    margin: 0px auto;
    padding: 40px 0px; /* 預設值，會被動態 CSS 覆蓋 */
    max-width: 1400px;
    /*background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);*/
    border-radius: var(--alm-radius);
}

/*.alm-section-title {
    text-align: center;
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 700;
    color: var(--alm-text-dark);
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
}

.alm-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--alm-accent), #9b59b6);
    border-radius: 2px;
}*/

.alm-section-title {
    text-align: center;
    /*font-size: clamp(24px, 4vw, 32px);*/
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--alm-text-dark);
    margin: 20px 0 0;
    position: relative;
    padding: 10px 9px 10px 0;
    border-bottom: 2px solid #e1e1e1;
    clear: both;
    font-weight: 900;
}


/* 左對齊時調整裝飾線位置 */
.alm-section-title[style*="text-align: left"]::after,
.alm-section-title[style*="text-align:left"]::after {
    left: 0;
    transform: none;
}

/* 右對齊時調整裝飾線位置 */
.alm-section-title[style*="text-align: right"]::after,
.alm-section-title[style*="text-align:right"]::after {
    left: auto;
    right: 0;
    transform: none;
}

/* 修改後 */
.alm-posts-container {
    margin-bottom: 15px;
    min-height: 200px;
    /* display: grid; 已移除 */
    /* gap: 30px; 已移除，由 PHP 動態控制 */
    margin-top: 20px;
}

/* --- 載入按鈕 --- */
.alm-button-wrapper {
    text-align: center;
    padding: 20px 0;
}

.alm-button {
    background: linear-gradient(135deg, var(--alm-primary) 0%, var(--alm-primary-hover) 100%);
    color: #fff;
    border: none;
    padding: 14px 36px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(44, 62, 80, 0.2);
    transition: var(--alm-transition);
    position: relative;
    overflow: hidden;
}

/*.alm-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}*/

.alm-button:hover::before {
    width: 300px;
    height: 300px;
}

.alm-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.3);
}

.alm-button:active {
    transform: translateY(0);
}

.alm-button:disabled {
    background: linear-gradient(135deg, #bdc3c7 0%, #95a5a6 100%);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* --- 文章卡片基本樣式 --- */
.ajax-post-card {
    background: var(--alm-bg-light);
    border-radius: var(--alm-radius);
    overflow: hidden;
    box-shadow: var(--alm-shadow);
    transition: var(--alm-transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.ajax-post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--alm-shadow-hover);
}

/* --- 圖片容器 (修正版 v4.1.1) --- */
.ajax-post-thumbnail {
    position: relative;
    display: block; /* 確保容器是區塊元素 */
    overflow: hidden;
    background: #e0e0e0; /* 新增一個背景色，在圖片載入前佔位 */

    /* 
     * 【核心修正】使用 aspect-ratio 屬性，這是現代瀏覽器的最佳實踐。
     * 它會自動維持 16 / 10 的長寬比。
     */
    aspect-ratio: 16 / 10;
}

/* 
 * 為了相容不支援 aspect-ratio 的舊瀏覽器，我們保留 padding-top 技巧。
 * @supports 語法會讓支援 aspect-ratio 的瀏覽器忽略這段。
 */
@supports not (aspect-ratio: 16 / 10) {
    .ajax-post-thumbnail {
        padding-top: 62.5%; /* 10 / 16 = 0.625 => 62.5% */
    }
}

/* 
 * 無論是否有 <a> 標籤，圖片都相對於 .ajax-post-thumbnail 定位
 */
.ajax-post-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保持圖片填滿且不變形 */
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 
 * 如果存在 <a> 標籤 (非延伸連結模式)，讓它也填滿整個容器
 */
.ajax-post-thumbnail a {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}


/* --- 分類標籤（圖片上方） --- */
.ajax-post-thumbnail .ajax-post-category {
    position: absolute;
    z-index: 10;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 6px;
    text-decoration: none;
    transition: var(--alm-transition);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);

    /* 確保這裡沒有 top, left, right, bottom 屬性 */
}

.ajax-post-thumbnail .ajax-post-category:hover {
    background: var(--alm-accent);
    color: #fff;
    transform: translateY(-2px);
}

/* --- 內容區域 --- */
.ajax-post-content {
    padding: 20px; /* 預設值，會被動態 CSS 覆蓋 */
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ajax-post-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--alm-text-light);
    margin-bottom: 0px;
    flex-wrap: wrap;
}

.ajax-post-date {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.ajax-post-date::before {
    content: '📅';
    font-size: 14px;
}

.ajax-post-author {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.ajax-post-author::before {
    content: '✍️';
    font-size: 14px;
}

/* --- 標題樣式 --- */
/*.ajax-post-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin: 0 0 12px 0;
    color: var(--alm-text-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    hyphens: auto;
}*/

.ajax-post-title {
    padding-left: 0;
    padding-right: 0;
    padding-top: 5px;
    height: auto;
    text-decoration: none;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #1f1d1d;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    font-size: 1.1rem;
    line-height: 1.8em;
    font-weight: 400;
}

.ajax-post-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}

.ajax-post-title a:hover {
    color: var(--alm-accent);
}

/* --- 摘要樣式 --- */
.ajax-post-excerpt {
    font-size: 14px;
    line-height: 1.7;
    color: var(--alm-text-light);
    margin: 0;
    flex: 1;
    
    /* 多行省略處理 */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --- 載入動畫 --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ajax-post-card {
    animation: fadeInUp 0.5s ease-out;
}

/* 逐個延遲顯示 */
.ajax-post-card:nth-child(1) { animation-delay: 0.1s; }
.ajax-post-card:nth-child(2) { animation-delay: 0.2s; }
.ajax-post-card:nth-child(3) { animation-delay: 0.3s; }
.ajax-post-card:nth-child(4) { animation-delay: 0.4s; }
.ajax-post-card:nth-child(5) { animation-delay: 0.5s; }
.ajax-post-card:nth-child(6) { animation-delay: 0.6s; }

/* --- 特殊狀態 --- */
.alm-loading {
    pointer-events: none;
    opacity: 0.6;
}

.alm-no-posts {
    text-align: center;
    padding: 60px 20px;
    color: var(--alm-text-light);
    font-size: 16px;
}

/* --- 載入中的微調器動畫 --- */
@keyframes alm-spin {
    to {
        transform: rotate(360deg);
    }
}

/* --- 減少動畫偏好 --- */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 
==============================================
 響應式設計基礎
 （詳細的版面設定由 PHP 動態生成）
==============================================
*/

@media (max-width: 767px) {
    /* .alm-posts-container {
        grid-template-columns: 1fr;  <-- 已刪除或註解掉此行
    } */
    
    .alm-section-wrapper {
        padding-left: 0px;
        padding-right: 0px;
    }
    
    .alm-section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }
    
    /* 手機版按鈕 */
    .alm-button {
        padding: 12px 28px;
        font-size: 15px;
    }
}

/* 
==============================================
 列表樣式輔助類別
 （當後台選擇列表樣式時會套用）
==============================================
*/

/* 列表模式的基礎樣式 */
.alm-list-style .ajax-post-card {
    display: flex;
    flex-direction: row;
    gap: 24px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--alm-border);
    padding-bottom: 30px;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
}

.alm-list-style .ajax-post-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.alm-list-style .ajax-post-card:hover {
    transform: none;
    box-shadow: none;
}

.alm-list-style .ajax-post-thumbnail {
    flex: 0 0 280px;
    height: 180px;
}

.alm-list-style .ajax-post-thumbnail a {
    padding-top: 0;
    height: 100%;
    border-radius: var(--alm-radius);
}

.alm-list-style .ajax-post-content {
    flex: 1;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 列表模式手機版 */
@media (max-width: 768px) {
    .alm-list-style .ajax-post-card {
        flex-direction: column;
        gap: 16px;
        padding-bottom: 24px;
        margin-bottom: 24px;
    }
    
    .alm-list-style .ajax-post-thumbnail {
        flex: none;
        height: 200px;
        width: 100%;
    }
    
    .alm-list-style .ajax-post-content {
        padding: 0;
    }
}

/* 
==============================================
 修正：分類標籤不應佔滿圖片
 關鍵問題：分類標籤應該是「內容自適應寬度」而非「佔滿容器」
==============================================
*/

/* --- 通用分類標籤樣式（所有模式適用）--- */
.ajax-post-thumbnail .ajax-post-category {
    /* 【核心修正 1】讓標籤寬度自適應內容 */
    display: inline-block;  /* 改為 inline-block，寬度由內容決定 */
    width: auto;            /* 明確設定為 auto */
    max-width: calc(100% - 24px); /* 最大不超過圖片寬度減去間距 */
    
    /* 【核心修正 2】文字溢出處理 */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    
    /* 定位與層級 */
    position: absolute;
    z-index: 10;
    
    /* 樣式 */
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 6px;
    box-sizing: border-box;
    transition: var(--alm-transition);
}

/* --- 手機列表模式特別處理 --- */
@media (max-width: 767px) {
    /* 確保容器正確 */
    .ajax-post-thumbnail { 
        flex: 0 0 200px;
        position: relative; /* 重要：讓分類標籤相對於圖片定位 */
    }
    
    /* 手機列表模式的分類標籤 */
    .ajax-post-thumbnail .ajax-post-category {
        display: inline-block; /* 保持內容自適應 */
        width: auto;
        max-width: calc(200px - 24px); /* 圖片寬度 - 左右間距 */
    }
}

/* --- 平板/桌機列表模式 --- */
.alm-list-style .ajax-post-thumbnail {
    flex: 0 0 280px;
    height: 180px;
    position: relative;
}

.alm-list-style .ajax-post-thumbnail .ajax-post-category {
    display: inline-block;
    width: auto;
    max-width: calc(280px - 24px);
}

/* --- 經典宮格模式 --- */
.changeItem.grid .ajax-post-category {
    display: inline-block; /* 保持內容自適應 */
    width: auto;
    max-width: calc(100% - 24px);
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 10;
}

/* --- 標準宮格模式 --- */
.ajax-post-card .ajax-post-thumbnail .ajax-post-category {
    display: inline-block;
    width: auto;
    max-height: 30px;
}

/* --- 如果啟用延伸連結，確保分類標籤仍可點擊 --- */
.alm-stretched-link ~ .ajax-post-thumbnail .ajax-post-category {
    position: relative;
    z-index: 11; /* 比延伸連結層(z-index: 1)更高 */
    pointer-events: auto;
}

/* 延伸連結模式下，整個縮圖容器的定位 */
.ajax-post-card.alm-stretched-link .ajax-post-thumbnail {
    position: relative;
}

/* 
==============================================
 深色模式額外優化
==============================================
*/

/* 深色模式下的特殊調整（由 PHP 動態添加 class 或 style） */
.alm-dark-mode {
    --alm-primary: #3498db;
    --alm-primary-hover: #5dade2;
    --alm-text-dark: #ecf0f1;
    --alm-text-light: #bdc3c7;
    --alm-border: #34495e;
    --alm-bg-light: #2c3e50;
    --alm-shadow: 0 2px 8px rgba(0,0,0,0.3);
    --alm-shadow-hover: 0 8px 24px rgba(0,0,0,0.4);
}

.alm-dark-mode .alm-section-wrapper {
    background: linear-gradient(180deg, #1a252f 0%, #2c3e50 100%);
}

.alm-dark-mode .ajax-post-card {
    background: #34495e;
}

.alm-dark-mode .ajax-post-card:hover {
    background: #3d5468;
}

/* 
==============================================
 列印樣式
==============================================
*/

@media print {
    .alm-button-wrapper {
        display: none;
    }
    
    .ajax-post-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        margin-bottom: 20px;
    }
    
    .ajax-post-thumbnail img {
        max-height: 200px;
        object-fit: contain;
    }
}

/* 
==============================================
 無障礙輔助
==============================================
*/

/* 鍵盤焦點樣式 */
.ajax-post-card a:focus {
    outline: 2px solid var(--alm-accent);
    outline-offset: 2px;
}

.alm-button:focus {
    outline: 3px solid var(--alm-accent);
    outline-offset: 3px;
}

/* 高對比度模式 */
@media (prefers-contrast: high) {
    .ajax-post-card {
        border: 2px solid var(--alm-text-dark);
    }
    
    .ajax-post-thumbnail .ajax-post-category {
        background: #000;
        border: 1px solid #fff;
    }
}

/* 
==============================================
 載入狀態與錯誤提示
==============================================
*/

.alm-error {
    background: #e74c3c;
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    margin: 20px auto;
    text-align: center;
    max-width: 600px;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.alm-no-more {
    text-align: center;
    color: var(--alm-text-light);
    font-size: 14px;
    padding: 20px;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* 
==============================================
 骨架屏載入效果（可選）
==============================================
*/

.alm-skeleton {
    background: linear-gradient(
        90deg,
        var(--alm-border) 25%,
        #f0f0f0 50%,
        var(--alm-border) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.alm-skeleton .ajax-post-thumbnail {
    background: var(--alm-border);
    min-height: 200px;
}

.alm-skeleton .ajax-post-title,
.alm-skeleton .ajax-post-excerpt {
    background: var(--alm-border);
    border-radius: 4px;
    color: transparent;
}

/* 
==============================================
 自訂滾動條（僅 Webkit）
==============================================
*/

.alm-section-wrapper::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.alm-section-wrapper::-webkit-scrollbar-track {
    background: var(--alm-border);
    border-radius: 4px;
}

.alm-section-wrapper::-webkit-scrollbar-thumb {
    background: var(--alm-text-light);
    border-radius: 4px;
}

.alm-section-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--alm-primary);
}

/* 
==============================================
 實用工具類別
==============================================
*/

/* 隱藏特定元素 */
.alm-hide-category .ajax-post-category { display: none !important; }
.alm-hide-date .ajax-post-date { display: none !important; }
.alm-hide-excerpt .ajax-post-excerpt { display: none !important; }
.alm-hide-author .ajax-post-author { display: none !important; }

/* 對齊工具 */
.alm-text-left { text-align: left !important; }
.alm-text-center { text-align: center !important; }
.alm-text-right { text-align: right !important; }

/* 間距工具 */
.alm-spacing-sm { gap: 15px !important; }
.alm-spacing-md { gap: 30px !important; }
.alm-spacing-lg { gap: 45px !important; }

/* 
==============================================
 瀏覽器相容性修正
==============================================
*/

/* IE11 不支援 grid，回退到 flex */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .alm-posts-container {
        display: flex;
        flex-wrap: wrap;
    }
    
    .ajax-post-card {
        flex: 0 0 calc(33.333% - 20px);
        margin: 10px;
    }
}

/* Safari 特定修正 */
@supports (-webkit-appearance: none) {
    .ajax-post-thumbnail a {
        will-change: transform;
    }
}

/* Firefox 特定修正 */
@-moz-document url-prefix() {
    .ajax-post-card {
        image-rendering: -moz-crisp-edges;
    }
}

/* 
==============================================
 效能優化
==============================================
*/

/* GPU 加速 */
.ajax-post-card,
.ajax-post-thumbnail img,
.alm-button {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* 圖片載入優化 */
.ajax-post-thumbnail img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}


/* 
==============================================
 AJAX Load More - 擴充樣式 (v3.3.1)
 請將此檔案加入原有的 CSS 檔案中
==============================================
*/

/* --- 載入按鈕增強樣式 --- */
.alm-button {
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 載入中的旋轉動畫 */
.alm-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: alm-spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 8px;
}

@keyframes alm-spin {
    to { transform: rotate(360deg); }
}

/* 載入中狀態的按鈕 */
.alm-button.alm-loading {
    pointer-events: none;
    opacity: 0.7;
}

/* --- 錯誤訊息樣式 --- */
.alm-error {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    margin: 20px auto;
    text-align: center;
    max-width: 600px;
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
    animation: alm-slide-down 0.3s ease-out;
}

@keyframes alm-slide-down {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alm-error-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.alm-error-text {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
}

.alm-retry-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s;
    white-space: nowrap;
}

.alm-retry-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

/* --- 「沒有更多文章」訊息樣式 --- */
.alm-no-more {
    text-align: center;
    color: var(--alm-text-light, #7f8c8d);
    font-size: 14px;
    padding: 20px;
    background: var(--alm-bg-light, #ffffff);
    border-radius: 8px;
    margin: 20px auto;
    max-width: 400px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    animation: alm-fade-in 0.3s ease-out;
}

@keyframes alm-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.alm-no-more::before {
    content: '✓';
    display: inline-block;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    color: white;
    border-radius: 50%;
    line-height: 24px;
    margin-right: 8px;
    font-weight: bold;
}

/* --- 文章淡入動畫優化 --- */
.ajax-post-card {
    transform-origin: center top;
    will-change: opacity, transform;
}

/* 骨架屏載入效果（可選） */
.ajax-post-card.alm-skeleton {
    pointer-events: none;
}

.ajax-post-card.alm-skeleton .ajax-post-thumbnail {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: alm-shimmer 1.5s infinite;
}

.ajax-post-card.alm-skeleton .ajax-post-title,
.ajax-post-card.alm-skeleton .ajax-post-excerpt {
    background: #f0f0f0;
    color: transparent;
    border-radius: 4px;
    animation: alm-shimmer 1.5s infinite;
}

@keyframes alm-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* --- 按鈕焦點樣式（無障礙） --- */
.alm-button:focus-visible {
    outline: 3px solid var(--alm-accent, #3498db);
    outline-offset: 3px;
}

.alm-retry-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 2px;
}

/* --- 深色模式適配 --- */
@media (prefers-color-scheme: dark) {
    .alm-no-more {
        background: #2c3e50;
        color: #bdc3c7;
    }
    
    .alm-error {
        box-shadow: 0 4px 12px rgba(231, 76, 60, 0.5);
    }
}

/* --- 行動裝置優化 --- */
@media (max-width: 767px) {
    .alm-error {
        flex-direction: column;
        padding: 14px 18px;
        margin: 15px;
    }
    
    .alm-error-text {
        text-align: center;
    }
    
    .alm-retry-btn {
        width: 100%;
        margin-top: 8px;
    }
    
    .alm-button {
        width: 100%;
        padding: 16px 24px;
    }
}

/* --- 觸控裝置優化 --- */
@media (hover: none) and (pointer: coarse) {
    .alm-button {
        min-height: 48px; /* 符合 WCAG 觸控目標大小 */
    }
    
    .alm-retry-btn {
        min-height: 44px;
    }
}

/* --- 減少動畫偏好 --- */
@media (prefers-reduced-motion: reduce) {
    .alm-spinner,
    .ajax-post-card,
    .alm-error,
    .alm-no-more,
    .ajax-post-card.alm-skeleton * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- 列印樣式 --- */
@media print {
    .alm-button,
    .alm-error,
    .alm-no-more,
    .alm-button-wrapper {
        display: none !important;
    }
}