/* ========== ✅ 資訊手冊頁面專用樣式 ========== */
:root {
  --primary-color: #243d51;
  --highlight-color: #f8ef32;
  --main-font-color: #23396c;
  --secondary-font-color: #999999;
  --white-color: #ffffff;
  --primary-color-dark: #1a2d60;
  --main-font-color-rgb: 35, 57, 108;
  --secondary-blue-accent: #3a5a9a;
  --background-color-light: #fafafa;
  --general-border-color: #dddddd;
  --light-grey-bg: #f9f9f9;
  --modal-pre-bg: #f5f5f5;
  --error-red: #d32f2f;
  --warning-background: #f8d7da;
  --warning-text: #721c24;
  --disabled-button-bg: #6c757d;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --hover-shadow: 0 8px 20px rgba(var(--main-font-color-rgb), 0.3);
}

::selection {
  color: var(--highlight-color);
  background: var(--primary-color);
}

* {
  font-family: "Noto Sans HK", sans-serif;
  box-sizing: border-box;
}
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  color: var(--main-font-color);
  background-color: var(--background-color-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  display: flex;
  flex-direction: column;
  min-height: 10vh;
}
a:link, a:visited, a:hover, a:active {
  color: var(--main-font-color);
  text-decoration: none;
}
a:hover, a:active {
  text-decoration: underline;
}

/* Header */
header {
  width: 100%;
  background-color: var(--primary-color);
  color: var(--white-color);
  height: 74px;
  position: relative;
  z-index: 10;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 100%;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white-color);
  user-select: none;
}
.site-icon {
  height: 80px;
  width: 200px;
  object-fit: contain;
  transition: var(--transition);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}
.header-button {
  background: transparent;
  color: var(--background-color-light);
  border: 2px solid var(--background-color-light);
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  padding: 4px 12px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  height: 36px;
}
.header-button:hover,
.header-button:focus {
  background: var(--background-color-light);
  color: var(--main-font-color);
}

/* Drawer */
.drawer {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background-color: var(--background-color-light);
  box-shadow: var(--shadow);
  z-index: 2000;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 20px;
}
.drawer.open {
  right: 0;
}
.drawer-title {
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--general-border-color);
  margin-bottom: 12px;
}
.drawer-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--main-font-color);
  padding: 0;
  line-height: 1;
  user-select: none;
}
.drawer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  color: var(--main-font-color);
  text-decoration: none;
  font-weight: 500;
}
.drawer-item:hover {
  color: var(--primary-color);
}
.drawer-actions {
  margin-top: auto;
  border-top: 1px solid var(--general-border-color);
  padding-top: 12px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.drawer-action-link {
  padding: 8px 0;
  text-align: left;
  color: var(--main-font-color);
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}
.drawer-action-link:hover {
  background-color: rgba(var(--main-font-color-rgb), 0.05);
  border-radius: 4px;
}
.drawer hr {
  border: none;
  border-top: 1px solid var(--general-border-color);
  margin: 12px 0;
}
.drawer-bottom-links {
  border-top: 1px solid var(--general-border-color);
  margin-top: 16px;
  padding-top: 8px;
  font-size: 0.68rem;
  color: var(--secondary-font-color);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.drawer-bottom-links a,
.drawer-bottom-links a:hover {
  color: var(--secondary-font-color);
  text-decoration: none;
  cursor: pointer;
  display: inline-block;
}
.drawer-bottom-links a:hover {
  text-decoration: underline;
}
.drawer .copyright {
  text-align: left;
  padding-left: 0;
  font-size: 0.64rem;
  color: var(--secondary-font-color);
  border-top: 1px solid var(--general-border-color);
  padding-top: 8px;
  user-select: none;
}
/* Main */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 12px 40px;
  width: 100%;
  margin: 0 auto;
}

/* ✅ 修改1：統一字體大小 */
.page_title {
  font-size: 32px; /* 統一使用 px 單位，與隱私政策一致 */
  font-weight: bold;
  display: block;
  margin: 20px 0;
  color: var(--main-font-color);
}
.highlight-bg-font {
  color: var(--primary-color);
  position: relative;
  display: inline-block;
  line-height: 1.2;
  z-index: 1;
}
.highlight-bg-font::before {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 40%;
  background-color: var(--highlight-color);
  z-index: -1;
  border-radius: 2px;
}

/* Sorting */
.tag-button-group-sorting {
  font-weight: bold;
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 6px;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 5px;
  -webkit-overflow-scrolling: touch;
}
.tag-button-group-sorting a {
  font-size: 0.8rem;
  color: var(--main-font-color);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.tag-button-group-sorting a:hover,
.tag-button-group-sorting a:focus {
  background-color: var(--primary-color);
  color: var(--white-color);
  outline: none;
  text-decoration: none;
}
.tag-button-group-sorting a.active-link {
  background-color: var(--primary-color);
  color: var(--white-color);
}

/* Category */
.tag-button-group-category {
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
  margin: 10px 0 30px 0;
  padding-bottom: 5px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color-dark) transparent;
}
@media screen and (min-width: 769px) {
  .tag-button-group-category .tag-button { font-size: 0.81rem; }
}
@media screen and (max-width: 768px) {
  .tag-button-group-category .tag-button { font-size: 0.63rem; }
}
.tag-button-group-category .tag-button {
  flex-shrink: 0;
  padding: 7.2px 14.4px;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid var(--main-font-color);
  color: var(--main-font-color);
  background: transparent;
  border-radius: 5px;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.tag-button-group-category .tag-button:hover,
.tag-button-group-category .tag-button:focus {
  background-color: var(--primary-color);
  color: var(--white-color);
  outline: none;
}
.tag-button-group-category .tag-button.active-tag {
  background-color: var(--primary-color);
  color: var(--white-color);
}

/* Search */
.info-search-container {
  width: 100%;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  gap: 5px;
  justify-content: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.info-search-input-container {
  flex-grow: 1;
  min-width: 0;
  position: relative;
  display: flex;
}
.infoSearchInput {
  width: 100%;
  padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  border: 1px solid var(--general-border-color);
  border-radius: 5px;
  font-size: 1rem;
  box-sizing: border-box;
}
.infoClearIcon {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: var(--secondary-font-color);
  cursor: pointer;
  user-select: none;
  line-height: 1;
  padding: 0;
  display: none;
}
.infoSearchButton {
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--main-font-color);
  border-radius: 5px;
  background: transparent;
  color: var(--main-font-color);
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
  user-select: none;
  flex-shrink: 0;
  white-space: nowrap;
  pointer-events: none;
}
.infoSearchButton.active {
  background-color: var(--primary-color);
  color: var(--white-color);
  outline: none;
  pointer-events: auto;
}

/* Results */
#result-content-container {
  width: 100%;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
  min-height: 50px;
}
/* ✅ 依要求修改：將結果項目轉換為具有層次感與互動性的卡片樣式 */
.result-card {
  background: var(--white-color); /* 設定背景色 */
  border: 1px solid var(--general-border-color); /* 增加柔和邊框 */
  border-radius: 8px; /* 增加圓角 */
  padding: 16px; /* 調整內部填充，內容不貼邊 */
  margin-bottom: 16px; /* 增加卡片間距 */
  width: 100%;
  box-sizing: border-box;
  box-shadow: var(--shadow); /* 預設輕微陰影 */
  transition: var(--transition); /* 加入過渡效果 */
  cursor: pointer; /* 提示可點擊 */
  
  /* 移除舊有列表分隔樣式 */
  border-bottom: none; 
}
.result-card:hover {
  box-shadow: var(--hover-shadow); /* 懸停時使用更明顯的陰影 */
  transform: translateY(-2px); /* 輕微上浮效果 */
}
/* 結束修改 .result-card */
#resultSummary {
  text-align: left;
  margin-left: 0;
  font-weight: bold;
  color: var(--main-font-color);
}

/* Cat buttons & more */
.cat-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 2px;
}
.cat-btns .tag-button {
  font-size: 0.8rem;
  border: 1px solid #243d51 !important;
  color: #243d51 !important;
  background: transparent !important;
  border-radius: 0.375rem;
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.375rem 0.75rem;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.cat-btns .tag-button:hover,
.cat-btns .tag-button:focus {
  color: #fff !important;
  background-color: #6c757d !important;
  border-color: #6c757d !important;
}

.btn-more {
  margin-top: 8px;
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-more:hover,
.btn-more:focus {
  background: var(--primary-color);
  color: var(--white-color);
  box-shadow: var(--hover-shadow);
}
/* ========== ✅ Modal 版面調整 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: #fff;
  width: 90%;
  max-width: 600px;
  height: 500px; /* 【要求】固定高度 */
  border-radius: 10px;
  padding: 20px;
  font-family: "Noto Sans HK", sans-serif;
  color: var(--main-font-color);
  position: relative;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.modal-title-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3px; /* 【要求】縮小間距 */
}

.modal-title {
  font-size: 20px;
  font-weight: bold;
  flex: 1;
  margin: 0;
}

.modal-subtitle {
  font-size: 20px;
  font-weight: normal;
  margin-bottom: 3px; /* 【要求】縮小間距 */
}

.divider {
  border-top: 1px solid #dddddd;
  margin: 3px 0;
}

.modal-body {
  font-size: 18px;
  line-height: 1.6;
  color: var(--main-font-color);
  font-weight: normal;
  overflow-y: auto; /* 【要求】可滾動 */
  flex: 1;
  margin: 0;
}

.modal-body p {
  margin: 8px 0;
}

.modal-body a {
  color: var(--main-font-color);
  text-decoration: none;
}
.modal-body a:hover {
  text-decoration: underline;
}

.info-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
}

.category-btn {
  background: none;
  border: 1px solid var(--main-font-color);
  color: var(--main-font-color);
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 14px;
  cursor: default;
}
.category-btn:hover {
  background: none;
  color: var(--main-font-color);
  cursor: default;
  text-decoration: none;
}

.star-icon,
.archived-icon {
  color: var(--main-font-color);
  font-size: 18px;
}

.modal-footer {
  text-align: right;
  margin-top: 12px;
}

.close-btn {
  background: var(--primary-color);
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  width: 100%;
  text-align: center;
}
.close-btn:hover {
  background: var(--primary-color-dark);
}

.modal-overlay.show {
  display: flex;
}

.hidden {
  display: none;
}

.no-results-message {
  background: transparent;
  margin: 1rem auto;
  padding: 1rem 1.5rem;
  max-width: 80%;
  border-radius: 8px;
  color: var(--main-font-color);
  text-align: center;
  font-size: 18px;
  font-weight: bold;
  font-family: inherit;
  user-select: none;
  box-shadow: none;
}

/* 骨架屏樣式 */
.skeleton-loader {
  width: 100%;
}

.skeleton-card {
  height: 120px;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
  border-radius: 8px;
  margin-bottom: 16px;
  border: 1px solid var(--general-border-color);
}

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

/* 錯誤狀態樣式 */
.error-message {
  background-color: var(--warning-background);
  color: var(--warning-text);
  padding: 1rem;
  border-radius: 8px;
  margin: 1rem 0;
  text-align: center;
  border: 1px solid var(--error-red);
}

.error-message i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  display: block;
}

@media screen and (min-width: 768px) {
  .info-search-container { width: 800px; flex-wrap: nowrap; }
  #result-content-container { width: 800px; }
}
@media (max-width: 768px) {
  .site-icon { height: 64px; width: 160px; }
  .tag-button-group-sorting { justify-content: flex-start; }
  .tag-button-group-category { overflow-x: auto; flex-wrap: wrap; }
  
  /* ✅ Mobile 介面下，將搜尋區域分為兩行，並調整寬度 (先前已修改) */
  .info-search-container { 
    flex-direction: column; /* 垂直堆疊 */
    gap: 10px; /* 增加垂直間距 */
    align-items: center; /* 確保內容置中 */
  }
  
  .info-search-input-container {
    width: 100%; 
    margin: 0 auto; /* 置中 */
  }
  
  .infoSearchButton {
    width: 100%; 
    margin: 0 auto; /* 置中 */
  }
}

/* ✅ 修改3：重新設計分頁樣式為 < 0/20 > 格式 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--general-border-color);
  background: var(--white-color);
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
}

.pagination button.page-info {
  background: transparent;
  border: none;
  cursor: default;
  font-weight: 600;
  color: var(--main-font-color);
  min-width: auto;
  padding: 0 8px;
}

.pagination button:hover:not(.page-info):not(:disabled) {
  background-color: var(--light-grey-bg);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination button.active {
  background-color: var(--primary-color);
  color: var(--white-color);
  font-weight: 700;
  cursor: default;
}