html,
body {
    width: 100%;
    position: relative;
    -webkit-overflow-scrolling: touch;
    /* 改善 iOS 上的捲動平滑度 */
}

:root {
    --display-header: flex;
    --display-announcement: block;
    --display-footer: block;
    --content-max-width: 800px;
    --font-size-base: 16px;
    --line-height-base: 1.6;
}

/* ========= 色彩主題 (Color Schemes) ========= */
/* 明亮模式 (Light) */
body.color-light {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #e0e5ec;
    --bg-image: url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?q=80&w=2073&auto=format&fit=crop');
    --text-color: #333333;
    --border-color: rgba(255, 255, 255, 0.4);

    --header-bg: rgba(255, 255, 255, 0.2);
    --post-bg: rgba(255, 255, 255, 0.35);
    --announcement-bg: rgba(52, 152, 219, 0.6);
    --announcement-text: #ffffff;
    --glass-blur: 20px;
    --post-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

/* 深色模式 (Dark) */
body.color-dark {
    /* 透明風格 (夜間) - 追求極限透明與純粹感 */
    --background-color: #111827;
    /* 略微調亮底色，增加對比 */
    --text-color: #f1f5f9;
    --primary-color: #38bdf8;
    --secondary-color: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.12);
    --post-bg: rgba(0, 0, 0, 0.1);
    /* 極致透明，僅 10% 黑色遮罩 */
    --post-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
    --bg-image: url('https://images.unsplash.com/photo-1518066000714-58c45f1a2c0a?q=80&w=2670&auto=format&fit=crop');
    --header-bg: rgba(15, 23, 42, 0.1);
    --announcement-bg: rgba(41, 128, 185, 0.5);
    --announcement-text: #ffffff;
    --glass-blur: 8px;
    /* 再降低模糊度，讓「星空」更清晰 */
}

/* ========= 顯示模式 (Display Modes) ========= */

/* 基本透明模式 (mode-basic) */
/* 使用 color-light / color-dark 預設變數，不需要特別覆寫 */

/* 省流模式 (mode-saver) - 無圖、無毛玻璃、純色底 */
body.mode-saver {
    --bg-image: none !important;
    --glass-blur: 0px !important;
    --post-shadow: none !important;
}

body.mode-saver.color-light {
    --background-color: #f4f4f4;
    --header-bg: #ececec;
    --post-bg: #ffffff;
    --border-color: #cccccc;
    --announcement-bg: #dddddd;
    --announcement-text: #000000;
}

body.mode-saver.color-dark {
    --background-color: #121212;
    --header-bg: #1e1e1e;
    --post-bg: #252525;
    --border-color: #333333;
    --announcement-bg: #333333;
    --announcement-text: #ffffff;
}

/* 無障礙純文字模式 (mode-accessibility) - 極高對比、大字體、加粗框線 */
body.mode-accessibility {
    --bg-image: none !important;
    --glass-blur: 0px !important;
    --post-shadow: none !important;
    --font-size-base: 22px !important;
    --line-height-base: 2 !important;
    --display-announcement: none !important;
}

body.mode-accessibility.color-light {
    --primary-color: #000000;
    --secondary-color: #000000;
    --background-color: #ffffff;
    --text-color: #000000;
    --border-color: #000000;
    --header-bg: #ffffff;
    --post-bg: #ffffff;
    --announcement-bg: #ffffff;
    --announcement-text: #000000;
}

body.mode-accessibility.color-dark {
    --primary-color: #ffffff;
    --secondary-color: #ffffff;
    --background-color: #000000;
    --text-color: #ffffff;
    --border-color: #ffffff;
    --header-bg: #000000;
    --post-bg: #000000;
    --announcement-bg: #000000;
    --announcement-text: #ffffff;
}

/* 專注模式 (mode-focus) - 隱藏干擾、置中放大 */
body.mode-focus {
    --bg-image: none !important;
    --glass-blur: 0px !important;
    --post-shadow: none !important;
    --font-size-base: 20px !important;
    --line-height-base: 1.8 !important;

    /* 隱藏周圍元素但保留位置 */
    --display-header: none !important;
    --display-announcement: transparent !important;
    /* 使用透明度而不是 display:none */
    --display-footer: none !important;
    --content-max-width: 900px !important;
}

body.mode-focus.color-light {
    --background-color: #fdfdfd;
    --header-bg: transparent;
    --post-bg: transparent;
    --border-color: transparent;
}

body.mode-focus.color-dark {
    --background-color: #121212;
    --header-bg: transparent;
    --post-bg: transparent;
    --border-color: transparent;
}

/* ===== 確保無障礙模式的按鈕與導覽列對比可見度 ===== */
body.mode-accessibility .control-btn {

    /* 頁尾 RSS 連結樣式 */
    .footer-links .rss-link {
        color: var(--text-color);
        text-decoration: none;
        opacity: 0.6;
        font-size: 0.9rem;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 6px 12px;
        border-radius: 20px;
        background: rgba(var(--primary-rgb), 0.05);
        transition: all 0.3s ease;
    }

    .footer-links .rss-link:hover {
        opacity: 1;
        color: var(--primary-color);
        background: rgba(var(--primary-rgb), 0.1);
        transform: translateY(-2px);
    }

    .footer-links .rss-link i {
        color: #f39c12;
        /* RSS 標誌性的橘色 */
    }

    border: 2px solid var(--border-color) !important;
    background-color: var(--background-color) !important;
    color: var(--text-color) !important;
}

body.mode-accessibility .control-btn:hover,
body.mode-accessibility .control-btn.active-mode {
    background-color: var(--text-color) !important;
    color: var(--background-color) !important;
}

body.mode-accessibility .theme-panel {
    border: 2px solid var(--border-color) !important;
}

body.mode-accessibility .site-nav a,
body.mode-accessibility a {
    text-decoration: underline;
    font-weight: 900;
    color: var(--secondary-color) !important;
}

/* 確保導覽列的 active 和 hover 在無障礙模式下也能反轉顏色，避免黑底黑字 */
body.mode-accessibility .site-nav a:hover,
body.mode-accessibility .site-nav a.active {
    background-color: var(--text-color) !important;
    color: var(--background-color) !important;
    text-decoration: none;
}

body.mode-accessibility .read-more,
body.mode-accessibility button,
body.mode-accessibility .btn,
body.mode-accessibility input[type="submit"],
body.mode-accessibility input[type="button"] {
    border: 2px solid var(--secondary-color) !important;
    background-color: var(--background-color) !important;
    color: var(--secondary-color) !important;
    font-weight: 900 !important;
    padding: 10px 20px !important;
}

body.mode-accessibility .read-more:hover,
body.mode-accessibility button:hover,
body.mode-accessibility .btn:hover,
body.mode-accessibility input[type="submit"]:hover,
body.mode-accessibility input[type="button"]:hover {
    background-color: var(--secondary-color) !important;
    color: var(--background-color) !important;
}

/* 無障礙模式下的頁籤樣式 */
body.mode-accessibility .tab-btn {
    border: 2px solid var(--border-color) !important;
    background-color: var(--background-color) !important;
    color: var(--text-color) !important;
    font-weight: 900 !important;
    padding: 12px 24px !important;
    border-bottom: 2px solid var(--border-color) !important;
    margin-right: 4px;
}

body.mode-accessibility .tab-btn i {
    color: var(--text-color) !important;
}

body.mode-accessibility .tab-btn.active {
    background-color: var(--text-color) !important;
    color: var(--background-color) !important;
    border: 2px solid var(--text-color) !important;
    border-bottom: 2px solid var(--text-color) !important;
}

body.mode-accessibility .tab-btn.active i {
    color: var(--background-color) !important;
}

body.mode-accessibility .tab-btn:hover {
    background-color: var(--secondary-color) !important;
    color: var(--background-color) !important;
}

body.mode-accessibility .tab-btn:hover i {
    color: var(--background-color) !important;
}

/* 無障礙模式下的草稿 badge 樣式 */
body.mode-accessibility .badge,
body.mode-accessibility span[style*="background: var(--border-color)"],
body.mode-accessibility span[style*="background:var(--border-color)"] {
    background-color: var(--text-color) !important;
    color: var(--background-color) !important;
    border: 2px solid var(--text-color) !important;
    font-weight: 900 !important;
    padding: 4px 8px !important;
    font-size: 0.9em !important;
}

/* 無障礙模式下的分類標籤樣式 */
body.mode-accessibility span[style*="background: rgba(var(--primary-rgb), 0.1)"],
body.mode-accessibility span[style*="background:rgba(var(--primary-rgb), 0.1)"] {
    background-color: var(--text-color) !important;
    color: var(--background-color) !important;
    border: 2px solid var(--text-color) !important;
    font-weight: 900 !important;
    padding: 4px 10px !important;
}

/* 全站基本設定 */
body {
    font-family: 'Iansui', "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: var(--line-height-base);
    font-size: var(--font-size-base);
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    background-image: var(--bg-image);
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 手機效能優化：禁用固定背景與過多毛玻璃 */
@media (max-width: 768px) {
    body {
        background-attachment: scroll !important;
    }

    /* 手機端移除所有過渡效果以提升效能 */
    * {
        transition: none !important;
    }

    /* 保留跑馬燈動畫 */
    .marquee-content {
        animation: marquee 20s linear infinite !important;
    }

    /* 手機端恢復毛玻璃效果 */
    .post,
    .site-header,
    .stat-card,
    .popular-post-card {
        backdrop-filter: blur(var(--glass-blur)) !important;
        -webkit-backdrop-filter: blur(var(--glass-blur)) !important;
    }

    /* 手機端表格移除毛玻璃效果，避免卡頓 */
    .post-content table {
        background: var(--post-bg) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        /* 完全移除毛玻璃效果提升效能 */
        transform: translateZ(0);
        /* 強制開啟硬體加速 */
    }
    
    /* 後台表格保持原有效果，但降低模糊度 */
    .admin-dashboard table {
        backdrop-filter: blur(5px) !important;
        -webkit-backdrop-filter: blur(5px) !important;
        transform: translateZ(0);
    }
    
    /* 表格行不使用毛玻璃效果，避免重複渲染 */
    .admin-dashboard tr,
    .admin-dashboard td {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .post,
    .site-header,
    .stat-card,
    .popular-post-card,
    .admin-sidebar,
    .admin-container,
    .tab-btn {
        background-color: var(--post-bg) !important;
    }

    /* 僅在手機導覽為直式（layout-side）時套用溢出保護 */
    body.layout-side {
        overflow-x: hidden;
    }
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #2980b9;
}

/* 置中容器 */
.container {
    width: 90%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 15px;
    transition: max-width 0.3s ease;
}

/* 讓 Header 裡面的東西橫向排列 */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    text-align: left;
    gap: 15px;
}

/* 浮動控制面板 (圖示按鈕) */
.floating-controls {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column-reverse;
    /* 主按鈕在最底下 */
    align-items: flex-end;
    /* 靠右對齊 */
    gap: 15px;
    /* 極大 z-index 確保專注模式下仍能點擊 */
    z-index: 2147483647;
}

.settings-btn {
    background-color: var(--primary-color) !important;
    color: var(--background-color) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
}

.panel-content {
    display: none;
    /* 預設隱藏 */
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.panel-content.show {
    display: flex;
    /* 顯示時變回 flex */
    opacity: 1;
    transform: translateY(0);
}

.theme-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--post-bg);
    padding: 10px;
    border-radius: 30px;
    box-shadow: var(--post-shadow);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.control-btn {
    background: var(--post-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, transform 0.2s ease, opacity 0.3s ease;
    backdrop-filter: blur(var(--glass-blur));
}

.control-btn:hover {
    background: var(--primary-color);
    color: var(--background-color);
    transform: scale(1.1);
}

/* 回到頂部按鈕 */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--background-color);
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 2147483646;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* 頁首 Header - 極致縮小版 */
.site-header {
    display: var(--display-header);
    background-color: var(--header-bg);
    padding: 0.5rem 0;
    /* 極大幅度縮小上下留白 */
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1100;
    /* 高於內容與公告欄 */
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 15px;
}

.site-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.site-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.site-icon:hover {
    transform: scale(1.1);
}

.site-title {
    font-size: 1.3rem;
    /* 縮小標題字體 */
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
}

.site-subtitle {
    font-size: 0.8rem;
    /* 縮小副標題 */
    color: var(--text-color);
    opacity: 0.8;
    margin-top: 0;
    margin-bottom: 0;
}

/* 導覽列選單 */
.site-nav {
    display: flex;
    gap: 1.5rem;
}

.site-nav a {
    color: var(--text-color);
    font-weight: bold;
    font-size: 1rem;
    padding: 5px 10px;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
    background-color: var(--border-color);
    color: var(--primary-color);
}

/* 管理員連結樣式 */
.admin-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background-color: rgba(var(--primary-rgb), 0.1) !important;
    color: var(--primary-color) !important;
    border: 1px solid var(--primary-color);
}

.admin-link:hover {
    background-color: var(--primary-color) !important;
    color: var(--background-color) !important;
    transform: translateY(-2px);
}

/* 編輯按鈕樣式 */
.admin-edit-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.admin-edit-btn:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 分頁導航樣式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 2rem;
    padding: 1rem 0;
}

.pagination-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background-color: var(--post-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    text-decoration: none;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.pagination-link:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.pagination-link.active {
    background-color: var(--primary-color);
    color: var(--background-color);
    font-weight: bold;
    border-color: var(--primary-color);
}

.pagination-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    color: var(--text-color);
    opacity: 0.6;
}

/* 下拉選單 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    margin-left: 5px;
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.dropdown-toggle.active {
    transform: rotate(45deg);
}

/* 下拉選單基礎樣板優化 */
.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--post-bg);
    min-width: 180px;
    box-shadow: var(--post-shadow);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    z-index: 1200;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    right: 0;
    margin-top: 10px;
    padding: 8px 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-content.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.dropdown-content a {
    color: var(--text-color);
    padding: 12px 20px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.dropdown-content a i {
    font-size: 0.8rem;
    opacity: 0.5;
    transition: transform 0.2s ease;
}

.dropdown-content a:hover {
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    padding-left: 25px;
}

.dropdown-content a:hover i {
    opacity: 1;
    transform: scale(1.2);
}

/* 跑馬燈/公告區塊 */
.announcement-bar {
    display: block;
    /* 永遠為 block 確保動畫不重置 */
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--announcement-bg);
    color: var(--announcement-text);
    padding: 8px 0;
    font-size: 0.9rem;
    font-weight: bold;
    backdrop-filter: blur(var(--glass-blur));
    transition: opacity 0.3s ease, height 0.3s ease, padding 0.3s ease;
    overflow: hidden;
    /* 防止內容撐破寬度 */
    max-width: 100vw;
}

/* 跑馬燈容器 */
.marquee-container {
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
}

/* 跑馬燈內容 */
.marquee-content {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 20s linear infinite;
}

/* 跑馬燈動畫 */
@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* 專注模式下隱藏跑馬燈但保留 DOM 渲染 */
body.mode-focus .announcement-bar {
    opacity: 0;
    pointer-events: none;
    height: 0;
    padding: 0;
    overflow: hidden;
}

/* 主要內容區 */
.content {
    margin-top: 2rem;
    margin-bottom: 3rem;
    min-height: 50vh;
}

/* 文章列表樣式 (加上毛玻璃效果) */
.post {
    background: var(--post-bg);
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 12px;
    box-shadow: var(--post-shadow);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-title {
    margin-top: 0;
    color: var(--primary-color);
}

.post-content {
    margin: 1.5rem 0;
    color: var(--text-color);
}

.post-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

/* 表情贴样式 - 与文字并排显示，大小与文字相同 */
.post-content img.emote {
    display: inline-block;
    vertical-align: middle;
    max-width: 1.5em;
    max-height: 1.5em;
    margin: 0 0.1em;
    border-radius: 0;
    box-shadow: none;
}

.post-content img:hover {
    transform: scale(1.01);
}

/* Markdown 增強語法樣式 */
/* 表格樣式 - 參照後台表格的簡潔風格 */
.post-content .table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1.5rem 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    background: var(--post-bg);
    border: 1px solid var(--border-color);
    /* 移除圓角、陰影和毛玻璃效果以提升效能 */
}

/* 手機端優化表格樣式 */
@media (max-width: 768px) {
    .post-content .table-responsive {
        overflow-x: auto;
        /* 移除 -webkit-overflow-scrolling 以提升效能 */
    }

    .post-content table {
        min-width: 600px;
        border: 1px solid #ccc !important;
        /* 設置固定的最小寬度並使用固定顏色邊框 */
    }
    
    .post-content th,
    .post-content td {
        padding: 8px !important;
        border-bottom: 1px solid #ccc !important;
        /* 使用固定顏色邊框 */
    }

    .post-content thead {
        background-color: #f5f5f5 !important;
        /* 使用固定顏色背景 */
    }
}

.post-content thead {
    background-color: rgba(var(--primary-rgb), 0.1);
}

.post-content th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    color: var(--primary-color);
}

.post-content td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.post-content tbody tr:last-child td {
    border-bottom: none;
}

/* 移除表格懸停效果以提升效能 */
/* .post-content tbody tr:hover {
    background-color: rgba(var(--primary-rgb), 0.05);
} */

/* 標題錨點樣式 */
.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    position: relative;
    padding-left: 25px;
}

.post-content .header-link {
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    font-size: 0.8em;
}

.post-content h1:hover .header-link,
.post-content h2:hover .header-link,
.post-content h3:hover .header-link,
.post-content h4:hover .header-link,
.post-content h5:hover .header-link,
.post-content h6:hover .header-link {
    opacity: 1;
}

.post-content mark {
    background-color: rgba(255, 235, 59, 0.4);
    padding: 2px 5px;
    border-radius: 4px;
    color: inherit;
}

.post-content u {
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--secondary-color);
}

.post-content .spoiler {
    background-color: rgba(255, 200, 0, 0.15);
    color: transparent;
    padding: 2px 8px;
    border-radius: 4px;
    cursor: help;
    transition: all 0.3s ease;
    filter: blur(4px);
    border: 2px dashed #ffa500;
    user-select: none;
    display: inline;
}

.post-content .spoiler:hover,
.post-content .spoiler:active {
    background-color: rgba(255, 200, 0, 0.05);
    color: var(--text-color);
    filter: blur(0);
    user-select: text;
    border-style: solid;
    border-color: #ffa500;
}

body.color-dark .post-content .spoiler {
    background-color: rgba(255, 165, 0, 0.2);
    border-color: #ff8c00;
}

body.color-dark .post-content .spoiler:hover {
    background-color: rgba(255, 165, 0, 0.1);
}

/* 程式碼區塊樣式優化 */
.post-content code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background-color: rgba(var(--primary-rgb), 0.08);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.95em;
    border: 1px solid var(--border-color);
}

.post-content pre {
    background-color: #1e293b;
    /* 經典深色程式碼背景 */
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 1.5rem 0;
    line-height: 1.5;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
    border: 1px solid #334155;
}

.post-content pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    border-radius: 0;
    font-size: 0.9rem;
    border: none;
}

/* Markdown 列表樣式 */
.post-content ul,
.post-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.post-content ul {
    list-style-type: disc;
}

.post-content ol {
    list-style-type: decimal;
}

.post-content li {
    margin: 0.5rem 0;
    line-height: 1.8;
}

/* 巢狀列表樣式 */
.post-content ul ul,
.post-content ol ol,
.post-content ul ol,
.post-content ol ul {
    margin: 0.5rem 0;
}

.post-content ul ul {
    list-style-type: circle;
}

.post-content ul ul ul {
    list-style-type: square;
}

/* Markdown 引用樣式 */
.post-content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--primary-color);
    background-color: rgba(var(--primary-rgb), 0.05);
    color: var(--text-color);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.post-content blockquote p {
    margin: 0;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content blockquote p:first-child {
    margin-top: 0;
}

body.color-dark .post-content code {
    background-color: rgba(255, 255, 255, 0.1);
    color: #38bdf8;
}

.read-more {
    display: inline-block;
    font-weight: bold;
    border: 1px solid var(--border-color);
    padding: 5px 15px;
    border-radius: 4px;
}

.read-more:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* 頁尾 Footer */
.site-footer {
    display: var(--display-footer);
    text-align: center;
    padding: 2rem 0;
    background-color: var(--header-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.9rem;
    backdrop-filter: blur(var(--glass-blur));
}

/* ===== 排版佈局 (Layout Top vs Side) ===== */
/* 若為上方導覽 (預設佈局) */
body.layout-top .site-wrapper {
    display: block;
}

/* 若為側邊導覽 */
body.layout-side .site-wrapper {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
    overflow-x: hidden;
    /* 防止側邊欄模式下的內容溢出 */
}

body.layout-side .site-header {
    height: 100vh;
    position: sticky;
    top: 38px;
    /* Offset roughly the height of the marquee */
    left: 0;
    border-bottom: none;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    /* 靠上排列 */
    padding: 2rem 1.5rem;
}

body.layout-side .header-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 3rem;
    /* 增加間距讓導覽更有呼吸感 */
}

body.layout-side .site-branding {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    width: 100%;
}

body.layout-side .site-nav {
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
}

body.layout-side .site-nav a {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 15px;
    border-radius: 10px;
    transition: all 0.2s ease;
}

body.layout-side .site-nav a:hover,
body.layout-side .site-nav a.active {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
}

body.layout-side .site-nav .dropdown {
    width: 100%;
}

body.layout-side .site-nav .dropdown-content {
    position: static;
    box-shadow: none;
    background: rgba(var(--primary-rgb), 0.03);
    border: none;
    margin-top: 5px;
    padding-left: 20px;
    opacity: 1;
    transform: none;
}

body.layout-side .site-footer {
    grid-column: 2 / -1;
    margin-left: 0;
}

/* RWD: 手機下強制回到上方導覽 */
@media (max-width: 768px) {

    /* 手機模式強制覆寫回預設上方導覽 */
    body.layout-side .site-wrapper {
        display: block;
    }

    body.layout-side .site-header {
        position: relative;
        top: 0;
        height: auto;
        padding-bottom: 20px;
    }
}

/* ===== 閃現訊息 (Flash Messages) ===== */
.flash-messages {
    margin-bottom: 20px;
}

.flash-msg {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-weight: bold;
    text-align: center;
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
}

.flash-success {
    background-color: rgba(46, 204, 113, 0.2);
    color: #27ae60;
    border-color: #27ae60;
}

.flash-error {
    background-color: rgba(231, 76, 60, 0.2);
    color: #c0392b;
    border-color: #c0392b;
}

body.color-dark .flash-success {
    color: #4ade80;
    /* 更亮的綠色 */
    border-color: #4ade80;
}

body.color-dark .flash-error {
    color: #f87171;
    /* 更亮的紅色 */
    border-color: #f87171;
}

/* 針對按鈕在黑暗模式下的對比度增強 */
body.color-dark .read-more[style*="background-color: #27ae60"] {
    background-color: #2ecc71 !important;
    border-color: #2ecc71 !important;
}

body.color-dark button[style*="color: #c0392b"] {
    color: #f87171 !important;
    border-color: #f87171 !important;
}

/* ===== 後台 RWD 特化優化：移除將表格變為 block 的邏輯，統一採用水平捲動 ===== */
/* 確保表格容器可水平捲動 */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 1rem;
}

.admin-dashboard table {
    display: table;
    min-width: 800px;
    /* 於桌面端也保持足夠寬度以觸發捲動 */
}

@media (max-width: 768px) {
    .admin-dashboard table {
        min-width: 600px;
    }

    .admin-dashboard td {
        padding: 8px;
    }
}

/* --- 新增：分類與置頂功能樣式 --- */

/* 分類標籤樣式 (側邊欄) */
.category-tags {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

.category-tag-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 15px;
    border-radius: 10px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.category-tag-link:hover {
    background: rgba(var(--primary-rgb), 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateX(5px);
}

.category-tag-link span {
    background: var(--border-color);
    color: var(--text-color);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.75rem;
    opacity: 0.8;
}

/* 文章列表中的分類標籤 */
.post-category-tag {
    text-decoration: none;
    font-size: 0.8rem;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
}

.post-category-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Hashtag 標籤樣式 */
.post-tag {
    text-decoration: none;
    font-size: 0.75rem;
    background: rgba(var(--secondary-rgb), 0.1);
    color: var(--secondary-color);
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid rgba(var(--secondary-rgb), 0.2);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.post-tag:hover {
    background: var(--secondary-color);
    color: white;
    opacity: 1;
    transform: translateY(-2px);
}

.post-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* 置頂圖示微調 */
.fa-thumbtack {
    transform: rotate(45deg);
    filter: drop-shadow(0 0 3px rgba(var(--secondary-rgb), 0.4));
}

/* 搜尋框強化 */
.search-form {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
}

.search-form:focus-within {
    border-color: var(--primary-color);
}

.search-form input {
    background: transparent;
    border: none;
    color: var(--text-color);
    outline: none;
    font-size: 0.85rem;
    width: 60px;
    transition: width 0.3s ease;
}

.search-form input:focus {
    width: 120px;
}

.search-form button {
    background: transparent;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0;
    opacity: 0.6;
}

/* ===== 分類總覽頁面樣式 (Categories Page) ===== */
.page-header {
    margin-bottom: 3rem;
    text-align: center;
    padding: 2.5rem;
    background: var(--post-bg);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--post-shadow);
}

.page-header h1 {
    font-size: 2.8rem;
    margin: 0;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.page-header p {
    margin-top: 10px;
    opacity: 0.7;
    font-size: 1.1rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.category-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--post-bg);
    padding: 1.8rem;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--post-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.category-card-icon {
    width: 60px;
    height: 60px;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: all 0.3s ease;
}

.category-card:hover .category-card-icon {
    background: var(--primary-color);
    color: white;
    transform: rotate(-10deg);
}

.category-card-info h2 {
    margin: 0;
    font-size: 1.4rem;
    color: var(--primary-color);
}

.category-count {
    margin: 5px 0 0 0;
    font-size: 0.9rem;
    opacity: 0.6;
}

.arrow-icon {
    margin-left: auto;
    opacity: 0.3;
    transition: all 0.3s ease;
}

.category-card:hover .arrow-icon {
    opacity: 1;
    transform: translateX(5px);
    color: var(--primary-color);
}

/* 針對分類過濾器的頂部標題強化 */
.category-filter-header {
    margin-bottom: 2.5rem;
    padding: 1.5rem 2.5rem;
    background: var(--post-bg);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    border-left: 8px solid var(--primary-color);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--post-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.3s ease;
}

.category-filter-header:hover {
    transform: scale(1.01);
}

/* ===== 芳鄰連結頁面樣式 (Blogroll Page) ===== */
.friend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.friend-card {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.friend-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color) !important;
    background: rgba(var(--primary-rgb), 0.05) !important;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.friend-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(var(--primary-rgb), 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.friend-card:hover .friend-icon {
    transform: rotate(-5deg) scale(1.1);
    border-color: var(--primary-color);
}

.friend-info {
    overflow: hidden;
    flex-grow: 1;
}

.friend-info h3 {
    margin: 0;
    font-size: 1.15rem;
    color: var(--primary-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-url {
    margin: 4px 0 8px;
    font-size: 0.85rem;
    opacity: 0.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-note {
    font-size: 0.9rem;
    line-height: 1.4;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    color: var(--secondary-color);
    font-style: italic;
}

/* 編輯器增強樣式 */
.editor-toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.editor-toolbar-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.editor-toolbar-right {
    margin-left: auto;
}

.editor-btn {
    padding: 8px 12px;
    font-size: 0.85rem;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.editor-btn:hover {
    background: var(--primary-color);
    color: white;
}

.editor-btn .btn-text {
    display: inline;
}

/* 響應式設計 - 小螢幕優化 */
@media (max-width: 768px) {
    .editor-toolbar {
        gap: 8px;
    }

    .editor-toolbar-group {
        gap: 6px;
        flex: 1;
        min-width: 0;
    }

    .editor-toolbar-right {
        margin-left: 0;
        flex: 0 0 auto;
    }

    .editor-btn {
        padding: 8px 10px;
        font-size: 0.8rem;
        gap: 4px;
    }

    .editor-btn .btn-text {
        display: none; /* 小螢幕只顯示圖標 */
    }

    .editor-btn i {
        font-size: 1rem;
    }
}

.editor-preview-container {
    margin-top: 30px;
    border: 1px solid var(--border-color);
    border-radius: 15px;
    background: var(--post-bg);
    backdrop-filter: blur(var(--glass-blur));
    overflow: hidden;
    display: none;
    box-shadow: var(--post-shadow);
}

.editor-preview-header {
    background: rgba(var(--primary-rgb), 0.05);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-preview-body {
    padding: 30px;
    max-height: 600px;
    overflow-y: auto;
}

.help-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--post-bg);
    backdrop-filter: blur(40px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 35px;
    z-index: 10001;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.7);
    display: none;
}

.help-modal.show {
    display: block;
}

.help-modal h3 {
    margin: 0 0 20px 0;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.help-modal .close-help {
    position: absolute;
    top: 25px;
    right: 25px;
    cursor: pointer;
}

.help-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(5px);
    z-index: 10000;
    display: none;
}

.help-table {
    width: 100%;
    border-collapse: collapse;
}

.help-table th,
.help-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.help-table code {
    background: rgba(var(--primary-rgb), 0.15);
    padding: 5px 10px;
    border-radius: 8px;
    color: var(--primary-color);
}

/* 後台視覺強化 - 簡約玻璃風格 */
.admin-dashboard table,
.admin-container table {
    background: var(--post-bg) !important;
    backdrop-filter: blur(var(--glass-blur)) !important;
    -webkit-backdrop-filter: blur(var(--glass-blur)) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    /* overflow: hidden; */
    /* 移除這行以允許水平捲動 */
    margin-bottom: 2rem !important;
    box-shadow: var(--post-shadow) !important;
}

.admin-dashboard table th,
.admin-container table th {
    background: rgba(var(--primary-rgb), 0.05) !important;
    padding: 12px !important;
}

.admin-dashboard table td,
.admin-container table td {
    padding: 12px !important;
}

/* 後台輸入框強化 - 輕量玻璃 */
.admin-dashboard input[type="text"],
.admin-dashboard input[type="password"],
.admin-dashboard textarea,
.admin-dashboard select,
.admin-container input[type="text"],
.admin-container input[type="password"],
.admin-container textarea,
.admin-container select {
    background: rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(5px) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-color) !important;
    border-radius: 8px !important;
    padding: 8px 12px !important;
}

/* 後台表單樣式優化 */
.admin-dashboard .form-control,
.admin-container .form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.admin-dashboard .form-control:focus,
.admin-container .form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.admin-dashboard .form-group label,
.admin-container .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: var(--text-color);
}

.admin-dashboard .form-check-input,
.admin-container .form-check-input {
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.admin-dashboard .form-check-label,
.admin-container .form-check-label {
    margin: 0;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
}

.admin-dashboard .text-danger,
.admin-container .text-danger {
    color: #e74c3c;
    font-size: 0.9em;
    display: block;
    margin-top: 0.5rem;
}

.admin-dashboard .role-checkboxes,
.admin-container .role-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    padding: 1rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.admin-dashboard .role-checkboxes input[type="checkbox"],
.admin-container .role-checkboxes input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.admin-dashboard .role-checkboxes label,
.admin-container .role-checkboxes label {
    margin: 0;
    cursor: pointer;
    color: var(--text-color);
}

/* ===== 管理頁面整體樣式 ===== */
.admin-container {
    background: var(--post-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--post-shadow);
    padding: 2rem;
}

/* ===== 流量統計卡片樣式 ===== */
.stat-card {
    background: var(--post-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--post-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.stat-card.stat-primary {
    border-left: 4px solid var(--primary-color);
}

.stat-card.stat-secondary {
    border-left: 4px solid var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
}

.stat-primary .stat-value {
    color: var(--primary-color);
}

.stat-secondary .stat-value {
    color: var(--secondary-color);
}

/* ===== 熱門文章區塊樣式 ===== */
.popular-posts-section {
    margin-bottom: 2rem;
}

.section-title {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.popular-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.popular-post-card {
    background: var(--post-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--post-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.popular-post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.popular-post-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.popular-post-title {
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.popular-post-card:hover .popular-post-title {
    color: var(--primary-color);
}

.popular-post-views {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ===== 管理儀表板側邊導航樣式 ===== */
.admin-wrapper {
    margin-top: 2rem;
}

.admin-sidebar {
    background: var(--post-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--post-shadow);
    position: sticky;
    top: 2rem;
    height: fit-content;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
}

.admin-sidebar h3 {
    margin: 0 0 1.5rem 0;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-nav .nav-section h4 {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-color);
    font-weight: 600;
}

.admin-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.admin-nav .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 0.75rem;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.admin-nav .nav-link:hover {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
    transform: translateX(3px);
}

.admin-nav .nav-link:hover i {
    opacity: 1;
}

.admin-nav .nav-link.active {
    background: var(--primary-color);
    color: var(--background-color) !important;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.3);
}

.admin-nav .nav-link.active i {
    opacity: 1;
}

.admin-nav .nav-link.active:hover {
    background: var(--primary-color);
    transform: none;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .admin-wrapper {
        flex-direction: column;
        gap: 1.5rem;
    }

    .admin-sidebar {
        width: 100%;
        position: relative;
        top: 0;
        max-height: none;
    }

    .admin-nav {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.5rem;
    }

    .admin-nav .nav-section {
        margin-bottom: 1rem;
    }

    .admin-nav .nav-section h4 {
        display: none;
    }

    .admin-nav .nav-link {
        justify-content: center;
        text-align: center;
        padding: 0.6rem;
        font-size: 0.85rem;
    }

    .admin-nav .nav-link i {
        margin-right: 0.5rem;
    }
}