/* ═══════════════════════════════════════════════════════════════════════════
   《維摩詰經》梵漢對勘 - 古典學術典籍風格
   Classical Scholarly Edition Design

   使用方法：在 HTML 的 <head> 中添加：
   <link rel="stylesheet" href="scholarly-style.css">
   <link href="https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Noto+Serif+SC:wght@400;500;600;700&display=swap" rel="stylesheet">
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    /* 宣紙色系 - Xuan Paper Tones */
    --paper-light: #faf8f4;
    --paper-warm: #f5f1ea;
    --paper-deep: #ebe5da;
    --paper-aged: #e3dccf;

    /* 墨色系 - Ink Tones */
    --ink-black: #1a1814;
    --ink-deep: #2d2926;
    --ink-medium: #4a4540;
    --ink-light: #6b6560;
    --ink-pale: #8a847d;

    /* 朱砂色系 - Cinnabar Tones */
    --cinnabar: #c75146;
    --cinnabar-dark: #a33d34;
    --cinnabar-light: #e07568;
    --cinnabar-pale: #f5d8d4;

    /* 靛青色系 - Indigo Tones */
    --indigo: #3d4f7c;
    --indigo-dark: #2a3754;
    --indigo-light: #5a6d9a;
    --indigo-pale: #d8dce8;

    /* 古銅金色系 - Antique Gold */
    --gold: #b5915a;
    --gold-dark: #8f7245;
    --gold-light: #d4b88a;
    --gold-pale: #f0e8d8;

    /* 松石綠 - Turquoise/Jade */
    --jade: #4a8f7c;
    --jade-dark: #3a7263;
    --jade-pale: #d8ebe5;

    /* 字體系統 */
    --font-chinese: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'SimSun', serif;
    --font-latin: 'Crimson Pro', 'EB Garamond', 'Times New Roman', serif;
    --font-display: 'Noto Serif SC', serif;

    /* 覆蓋原有變量 */
    --blue-600: var(--indigo);
    --blue-700: var(--indigo-dark);
    --blue-100: var(--indigo-pale);
    --orange-500: var(--gold);
    --orange-600: var(--gold-dark);
    --green-500: var(--jade);
    --purple-500: var(--indigo);
    --gray-900: var(--ink-black);
    --gray-700: var(--ink-medium);
    --gray-600: var(--ink-light);
    --gray-400: var(--paper-aged);
    --gray-300: var(--paper-aged);
    --gray-200: var(--paper-deep);
    --gray-100: var(--paper-warm);
    --white: var(--paper-light);

    /* 間距系統 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* 圓角 */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --border-radius: 4px;

    /* 陰影 */
    --shadow-sm: 0 1px 3px rgba(26, 24, 20, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 24, 20, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 24, 20, 0.1);
}

/* ═══════════════════════════════════════════════════════════════════════════
   基礎重置與全局樣式
   ═══════════════════════════════════════════════════════════════════════════ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-chinese) !important;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--ink-deep) !important;
    background: var(--paper-warm) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    margin: 0;
}

/* 宣紙紋理背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: -1;
}

/* 選擇樣式 */
::selection {
    background: var(--cinnabar-pale);
    color: var(--ink-black);
}

/* 羅馬字母字體規則 */
[lang="en"], [lang="la"], [lang="sa"],
.sanskrit, .latin, .romanized {
    font-family: var(--font-latin) !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   主容器
   ═══════════════════════════════════════════════════════════════════════════ */
.main-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-xl);
    padding-bottom: 120px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   頁眉設計
   ═══════════════════════════════════════════════════════════════════════════ */
.header-container {
    text-align: center;
    margin-bottom: var(--space-3xl);
    padding-bottom: var(--space-2xl);
    position: relative;
    display: block !important;
    border-bottom: none !important;
}

/* 傳統紋樣裝飾線 */
.header-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--gold) 20%,
        var(--cinnabar) 50%,
        var(--gold) 80%,
        transparent
    ) !important;
    border: none !important;
}

.page-title {
    font-family: var(--font-display) !important;
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    color: var(--ink-black) !important;
    letter-spacing: 0.15em !important;
    margin-bottom: var(--space-md);
    position: relative;
    display: inline-block;
    background: none !important;
    -webkit-text-fill-color: var(--ink-black) !important;
}

.author-info {
    font-size: 0.9rem !important;
    color: var(--ink-light) !important;
    margin-top: var(--space-lg);
    letter-spacing: 0.05em;
    position: static !important;
    text-align: center !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   搜索區域
   ═══════════════════════════════════════════════════════════════════════════ */
.search-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin: var(--space-2xl) 0;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--paper-light) !important;
    border: 1px solid var(--paper-aged) !important;
    border-radius: var(--radius-md);
    padding: var(--space-xs);
    padding-left: var(--space-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--cinnabar) !important;
    box-shadow: 0 0 0 3px var(--cinnabar-pale) !important;
}

.search-box input,
.search-box select {
    font-family: var(--font-chinese) !important;
    font-size: 0.95rem;
    padding: var(--space-sm) var(--space-md);
    border: none;
    outline: none;
    background: transparent !important;
    color: var(--ink-deep) !important;
}

.search-box input::placeholder {
    color: var(--ink-pale);
}

.search-box select {
    cursor: pointer;
    border-left: 1px solid var(--paper-aged);
    color: var(--ink-medium);
}

.search-box button {
    font-family: var(--font-chinese) !important;
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-lg);
    background: var(--cinnabar) !important;
    color: var(--paper-light) !important;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    letter-spacing: 0.1em;
    transition: all 0.2s ease;
}

.search-box button:hover {
    background: var(--cinnabar-dark) !important;
    transform: translateY(-1px);
}

#fold-all-btn {
    font-family: var(--font-chinese) !important;
    font-size: 0.9rem !important;
    padding: var(--space-sm) var(--space-lg) !important;
    background: var(--paper-light) !important;
    color: var(--indigo) !important;
    border: 1px solid var(--indigo-pale) !important;
    border-radius: var(--radius-md) !important;
    cursor: pointer;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

#fold-all-btn:hover {
    background: var(--indigo-pale) !important;
    border-color: var(--indigo-light) !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   內容區塊
   ═══════════════════════════════════════════════════════════════════════════ */
.block {
    margin: var(--space-2xl) 0;
    background: var(--paper-light) !important;
    border: 1px solid var(--paper-aged) !important;
    border-left: none !important;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    position: relative;
    padding: 0 !important;
}

/* 區塊左側裝飾條 */
.block::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(
        180deg,
        var(--cinnabar) 0%,
        var(--gold) 50%,
        var(--cinnabar) 100%
    ) !important;
}

.block-id {
    font-family: var(--font-display) !important;
    font-size: 1.15rem !important;
    font-weight: 600 !important;
    color: var(--ink-black) !important;
    padding: var(--space-lg) var(--space-xl);
    padding-left: calc(var(--space-xl) + 4px);
    background: linear-gradient(135deg, var(--paper-warm) 0%, var(--paper-light) 100%) !important;
    border-bottom: 1px solid var(--paper-aged);
    letter-spacing: 0.1em;
    margin: 0 !important;
}

.fold-toggle {
    cursor: pointer;
    user-select: none;
    transition: color 0.2s ease;
}

.fold-toggle:hover {
    color: var(--cinnabar) !important;
}

.fold-content {
    display: block;
    padding: var(--space-xl);
    padding-left: calc(var(--space-xl) + 4px);
    margin-top: 0 !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   章節標題
   ═══════════════════════════════════════════════════════════════════════════ */
.section-header,
.table-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--space-3xl) 0 var(--space-xl);
    font-family: var(--font-display) !important;
    font-size: 1.25rem !important;
    font-weight: 600 !important;
    color: var(--ink-black) !important;
    letter-spacing: 0.2em;
    position: relative;
    padding-bottom: 0 !important;
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: var(--ink-black) !important;
    text-shadow: none !important;
}

.section-header::before,
.section-header::after,
.table-header::before,
.table-header::after {
    content: '';
    flex: 1;
    height: 1px;
    border: none !important;
}

.section-header::before,
.table-header::before {
    background: linear-gradient(90deg, transparent, var(--paper-aged)) !important;
    margin-right: var(--space-lg);
}

.section-header::after,
.table-header::after {
    background: linear-gradient(270deg, transparent, var(--paper-aged)) !important;
    margin-left: var(--space-lg);
}

/* 原文對照標題 */
.section-header {
    font-size: 1.4rem !important;
}

/* 梵文分析表標題 */
.table-header-fanwen {
    color: var(--indigo) !important;
    -webkit-text-fill-color: var(--indigo) !important;
}

/* 支謙本對照表標題 */
.table-header-zhi {
    color: var(--gold-dark) !important;
    -webkit-text-fill-color: var(--gold-dark) !important;
}

/* 羅什本對照表標題 */
.table-header-shi {
    color: var(--jade-dark) !important;
    -webkit-text-fill-color: var(--jade-dark) !important;
}

/* 玄奘本對照表標題 */
.table-header-zang {
    color: var(--cinnabar) !important;
    -webkit-text-fill-color: var(--cinnabar) !important;
}

/* 藏文本對照表標題 */
.table-header-tibetan {
    color: var(--indigo-dark) !important;
    -webkit-text-fill-color: var(--indigo-dark) !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   原文展示
   ═══════════════════════════════════════════════════════════════════════════ */
.original-text {
    margin: var(--space-md) 0;
    padding: var(--space-md) var(--space-lg);
    background: var(--paper-warm) !important;
    border-left: 3px solid var(--gold) !important;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    line-height: 1.9;
    position: relative;
}

.original-text[data-type="Vimalakīrtinirdeśa："] {
    font-family: var(--font-latin) !important;
    font-style: italic;
    border-left-color: var(--indigo) !important;
    background: linear-gradient(135deg, rgba(61, 79, 124, 0.08) 0%, rgba(61, 79, 124, 0.03) 100%) !important;
}

.original-text[data-type*="經"] {
    border-left-color: var(--cinnabar) !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   文本分析區塊
   ═══════════════════════════════════════════════════════════════════════════ */
.text-analysis {
    margin: var(--space-xl) 0;
    background: var(--paper-light) !important;
    border: 1px solid var(--paper-aged) !important;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    padding: 0 !important;
}

.text-analysis:hover {
    box-shadow: var(--shadow-md);
    transform: none !important;
}

.text-analysis-header {
    background: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink-medium) 100%) !important;
    color: var(--paper-light) !important;
    padding: var(--space-md) var(--space-lg) !important;
    font-size: 1rem !important;
    font-weight: 500 !important;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    margin: 0 !important;
    border-radius: 0 !important;
    text-shadow: none !important;
}

.text-analysis-header:hover {
    background: linear-gradient(135deg, var(--ink-black) 0%, var(--ink-deep) 100%) !important;
}

.text-analysis-header::after {
    content: '▼';
    font-size: 0.7em;
    transition: transform 0.3s ease;
    opacity: 0.7;
}

.text-analysis.open .text-analysis-header::after {
    transform: rotate(180deg);
}

.text-analysis-content-wrapper {
    padding: var(--space-lg) !important;
    background: var(--paper-warm) !important;
    display: none;
    animation: slideDown 0.3s ease;
    margin-top: 0 !important;
    border-top: none !important;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.text-analysis.open .text-analysis-content-wrapper {
    display: block;
}

.text-analysis-subtitle {
    font-family: var(--font-display) !important;
    font-size: 1.05rem !important;
    font-weight: 600 !important;
    color: var(--ink-black) !important;
    margin: var(--space-lg) 0 var(--space-md) !important;
    padding: var(--space-sm) var(--space-md) !important;
    background: linear-gradient(90deg, var(--cinnabar-pale) 0%, transparent 100%) !important;
    border-left: 3px solid var(--cinnabar) !important;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0 !important;
    display: block !important;
    box-shadow: none !important;
    position: static !important;
    overflow: visible !important;
}

.text-analysis-subtitle::before {
    display: none !important;
}

.text-analysis-subtitle:first-child {
    margin-top: 0 !important;
}

.text-analysis-content {
    line-height: 1.9;
    color: var(--ink-medium) !important;
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--paper-light) !important;
    border-radius: var(--radius-md);
}

.text-analysis-point {
    position: relative;
    margin-bottom: var(--space-sm) !important;
    padding: var(--space-sm) var(--space-md) !important;
    padding-left: var(--space-xl) !important;
    line-height: 1.9;
    color: var(--ink-medium) !important;
    font-size: 0.95rem !important;
    background: var(--paper-light) !important;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.text-analysis-point:hover {
    background: var(--paper-warm) !important;
    transform: translateX(4px);
}

.text-analysis-point::before {
    content: '◇' !important;
    position: absolute;
    left: var(--space-sm) !important;
    color: var(--gold) !important;
    font-size: 0.8rem !important;
    font-weight: normal !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   表格設計
   ═══════════════════════════════════════════════════════════════════════════ */
table {
    width: 100%;
    border-collapse: separate !important;
    border-spacing: 0;
    margin: var(--space-lg) 0;
    background: var(--paper-light) !important;
    border: 1px solid var(--paper-aged) !important;
    border-radius: var(--radius-lg) !important;
    overflow: hidden;
    box-shadow: var(--shadow-sm) !important;
}

th {
    font-family: var(--font-display) !important;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    text-transform: none !important;
    letter-spacing: 0.1em !important;
    color: var(--paper-light) !important;
    background: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink-medium) 100%) !important;
    padding: var(--space-md) !important;
    text-align: center;
    border-bottom: 2px solid var(--ink-black) !important;
    white-space: nowrap;
    text-shadow: none !important;
}

td {
    padding: var(--space-md) !important;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--paper-aged) !important;
    line-height: 1.7;
    font-size: 0.95rem;
    background: transparent !important;
}

tr {
    background: transparent !important;
    transition: background-color 0.2s;
}

tr:last-child td {
    border-bottom: none !important;
}

tr:hover td {
    background: var(--paper-warm) !important;
}

/* 梵文單元格樣式 */
td[data-field="梵文"],
td[data-field="原型"],
td[data-field="詞根"],
td[data-field="词根"] {
    font-family: var(--font-latin) !important;
    font-style: italic;
    color: var(--indigo) !important;
}

/* 中文單元格樣式 */
td[data-field="今译"],
td[data-field="支译"],
td[data-field="什译"],
td[data-field="奘译"],
td[data-field="藏译"] {
    font-family: var(--font-chinese) !important;
    font-style: normal;
}

/* 表格類型區分 */
.table-fanwen th {
    background: linear-gradient(135deg, var(--indigo) 0%, var(--indigo-dark) 100%) !important;
}

.table-zhi th {
    background: linear-gradient(135deg, var(--gold-dark) 0%, var(--gold) 100%) !important;
    color: var(--ink-black) !important;
}

.table-shi th {
    background: linear-gradient(135deg, var(--jade-dark) 0%, var(--jade) 100%) !important;
}

.table-zang th {
    background: linear-gradient(135deg, var(--cinnabar-dark) 0%, var(--cinnabar) 100%) !important;
}

/* 梵文/漢譯標記 */
.fanwen {
    color: var(--indigo) !important;
    font-weight: 500;
    font-family: var(--font-latin) !important;
    font-style: italic;
}

.hanyi {
    color: var(--jade-dark) !important;
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════════════════════
   高亮與隱藏
   ═══════════════════════════════════════════════════════════════════════════ */
.highlight {
    background: linear-gradient(180deg, transparent 60%, var(--gold-pale) 60%) !important;
    border-radius: var(--radius-sm);
    box-shadow: none !important;
}

.hide-block {
    display: none !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   註腳
   ═══════════════════════════════════════════════════════════════════════════ */
.footnote {
    font-size: 0.875rem;
    color: var(--ink-light) !important;
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--paper-aged) !important;
    line-height: 1.7;
}

/* ═══════════════════════════════════════════════════════════════════════════
   導航側邊欄
   ═══════════════════════════════════════════════════════════════════════════ */
.nav-toggle {
    position: fixed;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--ink-deep) !important;
    color: var(--paper-light) !important;
    padding: var(--space-md) var(--space-sm) !important;
    border-radius: var(--radius-md) !important;
    cursor: pointer;
    z-index: 1000;
    box-shadow: var(--shadow-md) !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    letter-spacing: 0.15em;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    opacity: 1;
    background: var(--ink-black) !important;
    transform: translateY(-50%) scale(1.02);
}

.nav-sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    width: 260px !important;
    height: 100%;
    background: var(--paper-light) !important;
    backdrop-filter: none !important;
    box-shadow: var(--shadow-lg) !important;
    z-index: 999;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: var(--space-xl) !important;
    overflow-y: auto;
    border-right: 1px solid var(--paper-aged) !important;
}

.nav-sidebar.active {
    left: 0;
}

.nav-sidebar h3 {
    font-family: var(--font-display) !important;
    color: var(--ink-black) !important;
    font-size: 1.1rem !important;
    font-weight: 600 !important;
    margin: 0 0 var(--space-lg) 0 !important;
    padding-bottom: var(--space-md) !important;
    border-bottom: 2px solid var(--cinnabar) !important;
    letter-spacing: 0.15em;
}

.nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-links li {
    margin: var(--space-xs) 0;
}

.nav-links a {
    color: var(--ink-medium) !important;
    text-decoration: none;
    display: block;
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-md) !important;
    font-size: 0.9rem !important;
    line-height: 1.5;
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
    font-weight: normal !important;
}

.nav-links a:hover {
    background: var(--paper-warm) !important;
    color: var(--cinnabar) !important;
    border-left-color: var(--cinnabar) !important;
    transform: translateX(4px);
}

.nav-links a.active {
    background: var(--cinnabar-pale) !important;
    color: var(--cinnabar-dark) !important;
    border-left-color: var(--cinnabar) !important;
    font-weight: 500 !important;
}

/* 滾動條樣式 */
.nav-sidebar::-webkit-scrollbar {
    width: 4px;
}

.nav-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.nav-sidebar::-webkit-scrollbar-thumb {
    background: var(--paper-aged);
    border-radius: 4px;
}

.nav-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--ink-pale);
}

/* ═══════════════════════════════════════════════════════════════════════════
   工具欄
   ═══════════════════════════════════════════════════════════════════════════ */
#toolbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px !important;
    display: flex;
    align-items: center;
    padding: 0 var(--space-xl) !important;
    background: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink-black) 100%) !important;
    color: var(--paper-light) !important;
    z-index: 9999;
    box-shadow: var(--shadow-md) !important;
}

#toolbar button {
    font-family: var(--font-chinese) !important;
    margin-right: var(--space-sm);
    padding: var(--space-sm) var(--space-lg) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: var(--radius-md) !important;
    background: rgba(255, 255, 255, 0.1) !important;
    color: var(--paper-light) !important;
    font-weight: 500 !important;
    font-size: 0.9rem !important;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.2s ease;
}

#toolbar button:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.4) !important;
}

#toolbar button:active {
    background: var(--cinnabar) !important;
    border-color: var(--cinnabar) !important;
}

#switch-box {
    margin-top: 56px !important;
}

/* ═══════════════════════════════════════════════════════════════════════════
   響應式設計
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .main-container {
        padding: var(--space-xl) var(--space-md);
    }

    .page-title {
        font-size: 1.8rem !important;
        letter-spacing: 0.1em !important;
    }

    .search-container {
        flex-direction: column;
        gap: var(--space-md);
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100%;
        flex: 1;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: var(--space-sm) !important;
    }

    .nav-sidebar {
        width: 85% !important;
        max-width: 300px;
    }

    .author-info {
        position: static !important;
        text-align: center !important;
    }

    .header-container {
        flex-direction: column;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   列印樣式
   ═══════════════════════════════════════════════════════════════════════════ */
@media print {
    body {
        background: white !important;
    }

    body::before {
        display: none;
    }

    .nav-toggle,
    .nav-sidebar,
    #toolbar,
    .search-container,
    #fold-all-btn {
        display: none !important;
    }

    .main-container {
        max-width: none;
        padding: 0;
    }

    .block {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }

    .fold-content {
        display: block !important;
    }
}
