/* ==========================================================================
   EduTools AI - 北歐極簡文青風 CSS 設計系統 (Nordic Minimalist Style)
   ========================================================================== */

/* 匯入 Google Fonts: Noto Serif TC (思源宋體), Noto Sans TC (思源黑體), Playfair Display */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400&family=Noto+Serif+TC:wght@400;600;700&family=Noto+Sans+TC:wght@300;400;500;700&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

/* CSS 變數定義 */
:root {
  /* 字型定義 */
  --font-serif: 'Playfair Display', 'Noto Serif TC', Georgia, serif;
  --font-sans: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* 預設字型配置 (動態調整) */
  --font-title: var(--font-serif);
  --font-body: var(--font-sans);
  --base-font-size: 16px;

  /* 明亮模式 - 現代極簡北歐白與冷灰配色 (預設) */
  --bg-primary: #FFFFFF;       /* 極致乾淨明亮白 */
  --bg-secondary: #F8F9FA;     /* 現代清爽冷灰 */
  --bg-card: #FFFFFF;          /* 純白書籍卡片 */
  --bg-card-hover: #FFFFFF;
  --border-color: #EAEAEA;     /* 極細冰川灰線條 */
  --border-color-hover: #1A1A1A; /* 聚焦時的石墨黑線條 */
  
  --text-primary: #1A1A1A;     /* 石墨碳黑，現代優雅 */
  --text-secondary: #666666;   /* 冷感中灰色 */
  --text-muted: #999999;       /* 淺灰 */
  
  --accent-color: #4A607A;     /* 質感鋼鐵藍 */
  --accent-color-rgb: 74, 96, 122;
  --accent-light: #798CA4;
  
  /* 類別配色 - 清新高雅北歐色調 */
  --cat-all-color: #4A607A;
  --cat-teaching-color: #3B5846;      /* 北歐冷針葉綠 */
  --cat-teaching-bg: #F0F5F1;
  --cat-productivity-color: #4B617A;  /* 霧霾藍 */
  --cat-productivity-bg: #F1F4F7;
  --cat-exam-color: #9A6A5E;          /* 煙燻陶土粉 */
  --cat-exam-bg: #F9F4F2;

  /* 陰影 (捨棄任何偏土的陰影，使用極淡的冷灰色投影) */
  --shadow-primary: 0 4px 25px rgba(0, 0, 0, 0.015);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.04);
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --scrollbar-gutter: stable;
}

/* 深色模式 - 藝廊深夜展間配色 (Gallery Night Mode) */
[data-theme="dark"] {
  --bg-primary: #121212;       /* 深邃極簡黑 */
  --bg-secondary: #1A1A1A;     /* 暗黑底色 */
  --bg-card: #1E1E1E;          /* 藝廊展板深灰 */
  --bg-card-hover: #222222;
  --border-color: #262626;     /* 細緻黑邊框 */
  --border-color-hover: #444444;
  
  --text-primary: #E5E5E5;     /* 冰川白 */
  --text-secondary: #999999;   /* 冷感中灰色 */
  --text-muted: #666666;       /* 淺灰 */
  
  --accent-color: #8FA9C4;     /* 淡冷藍 */
  --accent-color-rgb: 143, 169, 196;
  --accent-light: #A7BCCE;
  
  /* 類別配色 (深色模式) */
  --cat-all-color: #8FA9C4;
  --cat-teaching-color: #A3BFA8;
  --cat-teaching-bg: rgba(163, 191, 168, 0.08);
  --cat-productivity-color: #A7BCCE;
  --cat-productivity-bg: rgba(167, 188, 206, 0.08);
  --cat-exam-color: #D9B3AD;
  --cat-exam-bg: rgba(217, 179, 173, 0.08);

  --shadow-primary: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* 全域設定 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--base-font-size);
  scroll-behavior: smooth;
  scrollbar-gutter: var(--scrollbar-gutter);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.8;
  letter-spacing: 0.03em;
  transition: background-color 0.5s ease, color 0.5s ease;
  position: relative;
}

/* ==========================================================================
   導覽列 (Navbar)
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  padding: 1.5rem 3rem;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-smooth);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-icon {
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.brand-logo-img {
  width: 1.8rem;
  height: 1.8rem;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: var(--transition-smooth);
}

[data-theme="dark"] .brand-logo-img {
  filter: invert(1);
  mix-blend-mode: screen;
}

.nav-brand:hover .brand-icon {
  transform: rotate(-8deg) scale(1.05);
}

.brand-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* ==========================================================================
   質感調控面板 (Control Panel)
   ========================================================================== */
.control-panel {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  border-left: 1px solid var(--border-color);
  padding-left: 1.25rem;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* 扁平圓角按鈕組 */
.control-btn-group {
  display: flex;
  background: var(--bg-secondary);
  border-radius: 4px;
  padding: 0.15rem;
  border: 1px solid var(--border-color);
}

.control-btn {
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.control-btn:hover {
  color: var(--text-primary);
}

.control-btn.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
}

/* 主題切換 */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 4px;
  cursor: pointer;
  display: grid;
  place-content: center;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

.theme-toggle-btn svg {
  width: 1.05rem;
  height: 1.05rem;
}

.theme-toggle-btn .icon-sun {
  display: none;
}
.theme-toggle-btn .icon-moon {
  display: block;
}
[data-theme="dark"] .theme-toggle-btn .icon-sun {
  display: block;
}
[data-theme="dark"] .theme-toggle-btn .icon-moon {
  display: none;
}

/* ==========================================================================
   主要容器 (Container)
   ========================================================================== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4.5rem 2.5rem 6rem 2.5rem;
}

/* ==========================================================================
   頂部大標區 (Hero Section - Editorial Header)
   ========================================================================== */
.hero {
  text-align: left;
  margin-bottom: 4.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 3.5rem;
}

.hero-subtitle-tag {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--accent-color);
  letter-spacing: 0.1em;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.hero-title span {
  font-weight: 400;
  font-style: italic;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 780px;
  line-height: 1.8;
  margin-top: 0.5rem;
}

/* 簡約搜尋欄 */
.search-wrapper {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin-top: 1.5rem;
}

.search-input {
  width: 100%;
  padding: 0.85rem 3rem 0.85rem 1.25rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-smooth);
}

.search-input:focus {
  border-color: var(--text-primary);
  background: var(--bg-card-hover);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.search-icon {
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  transition: var(--transition-smooth);
}

.search-icon svg {
  width: 1.1rem;
  height: 1.1rem;
  stroke-width: 1.5;
}

.search-input:focus ~ .search-icon {
  color: var(--text-primary);
}

.search-shortcut {
  position: absolute;
  right: 3.25rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  pointer-events: none;
  font-family: inherit;
  opacity: 0.7;
}

.search-input:focus ~ .search-shortcut {
  opacity: 0;
}

/* ==========================================================================
   分類區與統計 (Filter & Navigation)
   ========================================================================== */
.category-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.category-nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  gap: 2rem;
  flex-wrap: wrap;
}

.category-list {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.category-list::-webkit-scrollbar {
  display: none;
}

.category-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  white-space: nowrap;
  position: relative;
}

.category-btn svg {
  width: 1rem;
  height: 1rem;
  stroke-width: 1.5;
}

.category-btn:hover {
  color: var(--text-primary);
}

/* 下底線選中效果 */
.category-btn::after {
  content: '';
  position: absolute;
  bottom: -0.6rem;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.35s ease;
}

.category-btn.active {
  color: var(--text-primary);
  font-weight: 600;
}

.category-btn.active::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* 數量標籤角標 */
.tool-count-badge {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 0.15rem;
  vertical-align: super;
}

.category-btn.active .tool-count-badge {
  color: var(--text-primary);
}

/* 我的最愛按鈕 */
.stats-info {
  display: flex;
  align-items: center;
}

.favorite-filter-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.85rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

.favorite-filter-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

.favorite-filter-btn.active {
  background: #FAF3F2;
  border-color: #D3B2AA;
  color: #9A6A5E;
}

[data-theme="dark"] .favorite-filter-btn.active {
  background: rgba(217, 179, 173, 0.08);
  border-color: rgba(217, 179, 173, 0.2);
  color: #D9B3AD;
}

.favorite-filter-btn.active svg {
  fill: currentColor;
}

.favorite-filter-btn svg {
  width: 0.9rem;
  height: 0.9rem;
  stroke-width: 1.5;
}

/* ==========================================================================
   工具卡片網格 (Tools Grid)
   ========================================================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
  transition: var(--transition-smooth);
}

/* 空狀態 */
.no-results {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 4px;
  text-align: center;
  color: var(--text-secondary);
}

.no-results svg {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  stroke-width: 1.2;
}

.no-results-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* 北歐簡約卡片 */
.card-item {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2.25rem 2rem;
  position: relative;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-smooth);
  animation: card-appear 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes card-appear {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 卡片懸停 (低調邊框線聚焦) */
.card-item:hover {
  transform: translateY(-3px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-hover);
}

/* 點選愛心收藏 */
.favorite-btn {
  position: absolute;
  top: 1.75rem;
  right: 1.75rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  transition: var(--transition-smooth);
  z-index: 10;
}

.favorite-btn svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  transition: var(--transition-smooth);
}

.favorite-btn:hover {
  transform: scale(1.1);
  color: #9A6A5E;
}

.card-item.is-favorite .favorite-btn {
  color: #9A6A5E;
}

.card-item.is-favorite .favorite-btn svg {
  fill: #9A6A5E;
  stroke: #9A6A5E;
}

[data-theme="dark"] .card-item.is-favorite .favorite-btn {
  color: #D9B3AD;
}
[data-theme="dark"] .card-item.is-favorite .favorite-btn svg {
  fill: #D9B3AD;
  stroke: #D9B3AD;
}

/* 卡片頭部 */
.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.card-icon-wrapper {
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.card-icon-wrapper svg {
  width: 1.35rem;
  height: 1.35rem;
  stroke-width: 1.5;
}

/* 卡片分類指示器 */
.category-badge {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* 標題與簡介 */
.card-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.4;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: clip;
}

.card-description {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  line-clamp: 3;
  overflow: clip;
  flex-grow: 1;
}

/* 標籤 (極簡文字外框) */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.tag-pill {
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 0.1rem 0.5rem;
  border-radius: 2px;
}

/* 動作連結 (底線連結) */
.card-actions {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 2px;
}

/* 動態文字底線 */
.action-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  transform: scaleX(0.2);
  transform-origin: bottom left;
  transition: transform 0.35s ease;
}

.action-btn:hover::after {
  transform: scaleX(1);
}

.action-btn svg {
  width: 0.95rem;
  height: 0.95rem;
  transition: var(--transition-smooth);
}

.action-btn:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   頁尾 (Footer)
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: auto;
}

.footer-container {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
  font-family: var(--font-serif);
  font-style: italic;
}

.footer-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

/* ==========================================================================
   響應式斷點 (Responsive)
   ========================================================================== */
@media (max-width: 900px) {
  .navbar {
    padding: 1.25rem 2rem;
    flex-direction: column;
    gap: 1.25rem;
  }
  
  .control-panel {
    border-left: none;
    padding-left: 0;
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 3rem 1.5rem 4rem 1.5rem;
  }
  
  .hero {
    margin-bottom: 3rem;
    padding-bottom: 2.5rem;
  }
  
  .category-nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .stats-info {
    width: 100%;
    justify-content: flex-end;
  }

  .tools-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

/* ==========================================================================
   中央彈出式說明面板 (Centered Details Modal Styles)
   ========================================================================== */
.details-modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto; /* 原生置中 */
  border: 1px solid var(--border-color);
  border-radius: 8px; /* 典雅微圓角 */
  background: var(--bg-card);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
  width: 580px;
  max-width: 90vw;
  height: 680px; /* 解決 Safari/Chrome 彈窗高度塌陷問題 */
  max-height: 85vh;
  outline: none;
  display: none; /* 預設不顯示 */
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition-smooth);
}

/* 顯示時淡入放大 */
.details-modal[open] {
  display: flex;
  animation: modal-zoom-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modal-zoom-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 半透明背景遮罩 */
.details-modal::backdrop {
  background: rgba(26, 26, 26, 0.2);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.details-modal[open]::backdrop {
  opacity: 1;
  animation: backdrop-fade-in 0.3s ease forwards;
}

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

/* 彈窗內框 */
.modal-content {
  padding: 3.5rem 3rem 3rem 3rem;
  overflow-y: auto;
  max-height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* 關閉按鈕 */
.close-modal-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: grid;
  place-content: center;
  transition: var(--transition-smooth);
  z-index: 10;
}

.close-modal-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

.close-modal-btn:hover {
  color: var(--text-primary);
  transform: rotate(90deg);
}

/* 彈窗內容排版 */
.modal-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.modal-category {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
}

/* 段落區塊 */
.modal-section {
  margin-bottom: 2rem;
}

.modal-section-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.modal-section-title svg {
  width: 0.95rem;
  height: 0.95rem;
  stroke-width: 1.8;
}

.modal-text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 步驟列表 */
.modal-steps {
  padding-left: 1.2rem;
  list-style-type: decimal;
}

.modal-steps li {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}

/* 前往主要按鈕 */
.modal-action-btn {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.9rem 1.25rem;
  border-radius: 4px;
  background: var(--text-primary);
  color: var(--bg-primary);
  text-decoration: none;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--text-primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition-smooth);
}

.modal-action-btn:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(74, 96, 122, 0.2);
  transform: translateY(-2px);
}

.modal-action-btn svg {
  width: 1rem;
  height: 1rem;
  transition: var(--transition-smooth);
}

.modal-action-btn:hover svg {
  transform: translateX(4px);
}

/* 彈窗響應式優化 */
@media (max-width: 640px) {
  .details-modal {
    width: 95vw;
    max-height: 90vh;
  }
  .modal-content {
    padding: 3rem 2rem 2.5rem 2rem;
  }
}