/* ====================================
   Burning Memory - Main Styles
   ====================================
   Terminal-style UI with black background and green text
*/

/* CSS变量定义 - Color Variables */
:root {
  /* 主色调 - Primary Colors (磷光绿体系，微调冷色) */
  --bg-black: #031205;  /* 深绿色背景，略冷 */
  --bg-screen: #031205;
  --phosphor-primary: #80ff8a;  /* 亮绿色，R略减 */
  --phosphor-dim: #48a04e;  /* 暗绿色，略冷 */
  /* 兼容旧变量名 */
  --terminal-green: var(--phosphor-primary);
  --soft-green: var(--phosphor-primary);
  --dark-green: var(--phosphor-dim);

  /* 辅助色 - Accent Colors (保留用于特殊状态) */
  --alert-blue: #3399FF;
  --error-red: #FF3333;
  --hint-yellow: #FFFF00;

  /* 锁定项暗红色 - Locked Item Dark Red */
  --locked-red: #cc4444;
  --locked-red-dim: #8a3333;

  /* 中性色 - Neutral Colors */
  --light-gray: #CCCCCC;
  --dark-gray: #333333;

  /* CRT辉光效果 - CRT Glow Effect */
  --glow-spread: 2px;
  --glow-blur: 4px;

  /* 悬停背景色 - Hover Background */
  --hover-bg: rgba(0, 255, 0, 0.1);
}

/* ====================================
   主题系统 - Theme System
   ==================================== */

/* 绿色主题 - SEARCH 模式（默认，微调冷色） */
body.theme-search {
  --phosphor-primary: #80ff8a;
  --phosphor-dim: #48a04e;
  --hover-bg: rgba(0, 255, 0, 0.1);
}

/* 黄色主题 - SORT 模式 */
body.theme-sort {
  --phosphor-primary: #ffcc00;
  --phosphor-dim: #b38f00;
  --hover-bg: rgba(255, 204, 0, 0.1);
  /* CRT 效果颜色（黄色） */
  --crt-primary-color: #ffcc00;
  --crt-scanline-color: rgba(255, 204, 0, 0.08);
  --crt-scanline-glow: rgba(255, 204, 0, 0.12);
  --crt-scanline-shadow: rgba(255, 204, 0, 0.3);
  --crt-glow-color: rgba(255, 204, 0, 0.15);
  --crt-glow-strong: rgba(255, 204, 0, 0.4);
  --crt-glow-weak: rgba(255, 204, 0, 0.2);
}

/* 红色主题 - DELETE 模式 */
body.theme-delete {
  --phosphor-primary: #cc4444;
  --phosphor-dim: #8a3333;
  --hover-bg: rgba(204, 68, 68, 0.1);
  /* CRT 效果颜色（红色） */
  --crt-primary-color: #cc4444;
  --crt-scanline-color: rgba(204, 68, 68, 0.08);
  --crt-scanline-glow: rgba(204, 68, 68, 0.12);
  --crt-scanline-shadow: rgba(204, 68, 68, 0.3);
  --crt-glow-color: rgba(204, 68, 68, 0.15);
  --crt-glow-strong: rgba(204, 68, 68, 0.4);
  --crt-glow-weak: rgba(204, 68, 68, 0.2);
}

/* 全局重置 - Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* HTML元素 - 防止iOS整体滚动 */
html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

/* Body样式 - Body Styles */
body {
  width: 100vw;
  height: calc(var(--vh, 1vh) * 100);
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  background-color: var(--bg-black);
  color: var(--terminal-green);
  font-family: 'VT323', 'Zpix', monospace;
  font-size: 20px;  /* Zpix像素字体 */
  line-height: 1.5;
  display: flex;
  justify-content: center;
  align-items: center;
  /* 全局禁用文字选中 */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  /* 安全区域支持 - Safe Area Support */
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

/* 主容器 - Main Container */
.app-container {
  display: flex;
  width: 80%;
  height: 80%;
  border: 3px solid var(--terminal-green);
  transition: border-color 0.3s ease;
}

/* 左侧栏 - Left Sidebar */
.left-sidebar {
  width: 17.5%;
  height: 100%;
  border-right: 1px solid var(--dark-green);
  background-color: var(--bg-black);
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease;
}

/* 右侧区域 - Right Area */
.right-area {
  width: 82.5%;
  height: 100%;
  background-color: var(--bg-black);
  display: flex;
  flex-direction: column;
}

/* ====================================
   卡片内容区详细样式 - Card Content Area Detailed Styles
   ==================================== */

/* 卡片内容区容器 - Card Content Container */
.card-content-area {
  flex: 1;              /* 占据剩余空间（替代固定 height: 70%） */
  min-height: 200px;    /* 内容区最小高度保护 */
  border-bottom: 2px dashed var(--phosphor-dim, #4e9c4e); /* P5 统一：与左右分割线一致 */
  background-color: var(--bg-black);
  color: var(--terminal-green);
  display: flex;
  flex-direction: column;
  /* 禁用文字选择 - Disable Text Selection */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* 标题栏 - Title Bar (P5 统一虚线样式) */
.title-bar {
  height: 50px;
  border-bottom: none;  /* 默认无分割线 */
  padding: 0 20px;
  display: flex;
  justify-content: flex-start;  /* 左对齐 */
  align-items: center;
  background-color: var(--bg-black);
  flex-shrink: 0;
  position: relative;
}

/* 打开文件后显示分割线 - P5 统一：与左右分割线一致 */
.title-bar.has-content {
  border-bottom: 2px dashed var(--phosphor-dim);
}

/* P3 新标题格式 - 完整标题显示 */
.card-filename {
  color: var(--phosphor-primary);
  font-size: 20px;  /* 适配新格式 */
  font-weight: 400;
  white-space: nowrap;  /* 防止换行 */
}

/* 旧元素隐藏 */
.card-year {
  display: none;  /* P3中年份已整合到标题 */
}

.card-timestamp {
  display: none;  /* P3中时间已整合到标题 */
}

/* 卡片内容滚动区 - Card Scroll Area */
.card-scroll {
  flex: 1;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 20px;
  /* iOS滚动优化 - 防止滚动链传递 */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;
  /* 禁用文字选择 - Disable Text Selection */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* 图片展示区 - Image Display */
.image-display {
  text-align: center;
  margin-bottom: 20px;
}

.image-placeholder {
  display: inline-block;
  padding: 60px 100px;
  border: 1px dashed var(--dark-green);
  color: var(--soft-green);
  font-size: 14px;
  background-color: rgba(0, 255, 0, 0.02);
}

/* 文本内容区 - Text Content Area */
.text-content {
  color: var(--phosphor-primary);
  font-size: 20px;  /* 中文Zpix像素字体 */
  line-height: 1.5;
  max-width: 80ch;
  /* 禁用文字选择 - Disable Text Selection */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* 英文模式字体大小 */
body.lang-en .text-content {
  font-size: 24px;
}

.text-content p {
  margin-bottom: 16px;
}

/* 线索词高亮 - Clue Word Highlight (亮白色) */
.clue-word {
  color: #e0e0e0;
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-color: #aaaaaa;
  transition: all 0.2s;
}

.clue-word:hover {
  color: #ffffff;
  text-shadow: 0 0 8px #ffffff;
}

/* ====================================
   输入交互区详细样式 - Input Area Detailed Styles
   三段式布局: 系统输出 / 输入行 / 状态按钮
   ==================================== */

/* 输入交互区容器 - Input Area Container */
.input-area {
  flex-shrink: 0;       /* 禁止被压缩（替代固定 height: 30%） */
  min-height: 160px;    /* 最小高度保护：系统输出 + 输入行 + 按钮栏 */
  background-color: var(--bg-black);
  display: flex;
  flex-direction: column;
  padding: 10px 20px;
  cursor: text; /* 提示用户可以点击输入 */
}

/* 系统输出区 - System Output */
.system-output {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 50px;     /* 至少能显示1-2行系统消息 */
  overflow: hidden;
}

.output-line {
  margin: 2px 0;
  color: var(--phosphor-primary, #8aff8a);
  font-size: 22px; /* P4 修复：与 prompt/input 统一 */
  line-height: 1.4;
  opacity: 0.85;
  /* 允许换行显示完整消息，修复小屏幕截断问题 */
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  word-break: break-word;
  transition: color 0.3s ease;
}

.output-line:empty {
  height: 1.4em;
}

/* DELETE 确认提示高亮样式 */
.output-line.confirm-highlight {
  font-weight: bold;
  opacity: 1;
}

/* 输入行 - Input Line */
.input-line {
  display: flex;
  align-items: center;
  font-size: 22px;
  padding: 10px 0;
  /* P4 修复：删除上边框 */
}

.prompt {
  color: var(--phosphor-primary, #8aff8a);
  font-size: 22px;
  font-weight: normal; /* P4 修复：与 output-line 统一，不用 bold */
  margin-right: 10px;
  white-space: nowrap;
  flex-shrink: 0;
  opacity: 0.85;
  transition: color 0.3s ease;
}

.command-input {
  background: none;
  border: none;
  outline: none;
  color: var(--phosphor-primary, #8aff8a);
  font-family: 'VT323', 'Zpix', monospace;
  font-size: 22px;
  line-height: 1.5;
  padding-left: 4px; /* 中文字符左侧呼吸空间 */
  /* 允许输入框内文字选中 */
  user-select: text;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  caret-color: transparent; /* 隐藏原生光标 */
  /* P4 修复：宽度自适应内容 */
  width: auto;
  min-width: 1ch;
  opacity: 0.85; /* P4 修复：与系统输出亮度一致 */
  transition: color 0.3s ease;
}

.command-input::placeholder {
  color: var(--phosphor-dim, #4e9c4e);
  opacity: 0.5;
}

/* 方块光标 - Block Cursor */
.cursor-block {
  display: inline-block;
  width: 12px;
  height: 22px;
  background-color: var(--phosphor-primary, #8aff8a);
  margin-left: 0;
  vertical-align: middle;
  flex-shrink: 0;
  /* 默认：不闪烁，暗淡显示 */
  animation: none;
  opacity: 0.3;
  box-shadow: none;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* 聚焦时：闪烁，正常亮度 */
.input-line.cursor-active .cursor-block {
  animation: hard-blink 1s steps(2, start) infinite;
  opacity: 0.85;
  box-shadow: 0 0 6px var(--phosphor-dim, #4e9c4e);
}

/* 状态按钮栏 - Function Bar */
.function-bar {
  display: flex;
  gap: 15px;
  padding-top: 10px;
  width: 100%;
  /* P4 修复：删除上边框 */
}

/* RESET 按钮靠右显示 */
.func-btn[data-mode="reset"] {
  margin-left: auto;
}

.func-btn {
  color: var(--phosphor-primary, #8aff8a);
  opacity: 0.6;
  cursor: pointer;
  padding: 5px 8px;
  font-size: 18px;
  white-space: nowrap;
  transition: opacity 0.2s, color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.func-btn:hover {
  opacity: 0.9;
}

.func-btn.active {
  background: var(--phosphor-dim, #4e9c4e); /* P4 修复：降低亮度 */
  color: #000;
  opacity: 1;
  box-shadow: 0 0 6px var(--phosphor-dim, #4e9c4e);
  text-shadow: none;
}

.func-btn.locked {
  display: none; /* 解锁前隐藏 */
}

/* 闪烁光标（卡片区使用） - Blinking Cursor (for card area) */
.cursor-blink {
  color: #AAAAAA;
  font-size: 12px;
  font-weight: 400;
  animation: blink 2.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 60% {
    opacity: 1;
  }
  61%, 100% {
    opacity: 0.2;
  }
}

/* 继续提示文本 - Continue Hint */
.continue-hint {
  color: #AAAAAA;
  font-size: 18px;
  margin-top: 20px;
  font-style: normal;
  font-weight: 300;
  animation: blink 1.5s infinite;
  /* 禁用文字选择 - Disable Text Selection */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* 闪烁动画 - Blink Animation */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0.3; }
}

/* 指令提示区已移除 - Command Help Removed (P4.1) */

/* ====================================
   左侧栏详细样式 - Left Sidebar Detailed Styles
   ==================================== */

/* 文件列表 - File List */
.file-list {
  flex: 1;
  border-bottom: 1px solid var(--dark-green);
  padding: 8px;
  overflow-x: hidden;
  overflow-y: auto;
  /* iOS滚动优化 - 防止滚动链传递 */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  touch-action: pan-y;
}

/* 文件项 - File Item */
.file-item {
  display: flex;
  align-items: center;
  padding: 8px 6px 8px 24px;  /* 左边距留出黑框空间 */
  margin-bottom: 6px;
  cursor: pointer;
  border-radius: 2px;
  transition: background-color 0.2s;
  font-size: 20px;  /* VT323 需要更大字号 */
  line-height: 1.4;
}

.file-item:hover {
  background-color: var(--hover-bg, rgba(0, 255, 0, 0.1));
}

/* 选中项黑方块标记 - Active Marker */
.active-marker {
  margin-right: 5px;
  color: #000;  /* 反白时方块为黑色 */
}

/* 当前选中的文件 - Active File (反白效果) */
.file-item.active {
  background-color: var(--phosphor-primary);
  color: #000;
  padding-left: 24px;  /* 保持与其他项对齐 */
  box-shadow: 0 0 15px var(--phosphor-dim);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* 选中项文件名 - 反白时为黑色 */
.file-item.active .file-name {
  color: #000 !important;
  font-weight: 500;
  text-shadow: none;
  opacity: 1 !important;
}

/* 文件图标 - File Icon */
.file-icon {
  margin-right: 6px;
  font-size: 14px;
  flex-shrink: 0;
}

/* 文件名 - Filename */
.file-name {
  flex: 1;
  font-weight: 400;
}

/* ====================================
   文件状态颜色系统 - File Status Colors
   亮度区分: 未读100%+发光 > 已读40% | 锁定=暗红100%+发光
   ==================================== */

/* 未读状态 - Unread Status (最亮 + 发光) */
.file-item.unread .file-name {
  color: var(--phosphor-primary);
  opacity: 1;
  text-shadow: 0 0 8px var(--phosphor-dim);
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* 已读状态 - Read Status (40% 亮度) */
.file-item.read .file-name {
  color: var(--phosphor-primary);
  opacity: 0.4;
  transition: color 0.3s ease;
}

/* 锁定状态 - Locked Status (暗红色 100% + 发光) */
.file-item.locked .file-name {
  color: var(--locked-red);
  opacity: 1;
  text-shadow: 0 0 8px var(--locked-red-dim);
}

/* 选中状态 - Active (反白, 优先级最高) */
/* 已在上方 .file-item.active 和 .file-item.active .file-name 定义 */

/* 锁定文件可点击 - Locked files are clickable */
.file-item.locked {
  cursor: pointer;
}

.file-item.locked:hover {
  background-color: rgba(138, 255, 138, 0.1);
}

/* 刚解锁闪烁效果 - Just Unlocked Flash Effect */
@keyframes unlock-flash {
  0%, 50% {
    opacity: 1;
    text-shadow: 0 0 15px var(--phosphor-primary), 0 0 30px var(--phosphor-primary);
  }
  25%, 75% {
    opacity: 0.6;
    text-shadow: 0 0 8px var(--phosphor-dim);
  }
  100% {
    opacity: 1;
    text-shadow: 0 0 8px var(--phosphor-dim);
  }
}

.file-item.just-unlocked .file-name {
  animation: unlock-flash 1s ease-out;
  color: var(--phosphor-primary);
}

/* 统计信息 - Statistics */
.statistics {
  height: 50px;
  padding: 12px;
  padding-right: 60px;  /* 内容向左偏移约5字符 */
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.statistics p {
  margin: 0;
}

.stat-number {
  font-weight: 500;
}

/* Statistics 主题 - 绿色 (SEARCH) */
body.theme-search .statistics {
  color: #8aff8a;
  text-shadow: 0 0 2px #4e9c4e, 0 0 8px #4e9c4e;
}

/* Statistics 主题 - 黄色 (SORT) */
body.theme-sort .statistics {
  color: #ffcc00;
  text-shadow: 0 0 2px #b38f00, 0 0 8px #b38f00;
}

/* Statistics 主题 - 红色 (DELETE) */
body.theme-delete .statistics {
  color: #cc4444;
  text-shadow: 0 0 2px #8a3333, 0 0 8px #8a3333;
}

/* Tab切换栏 - Tab Switch Bar */
.tab-switch {
  height: 50px;
  padding: 8px;
  padding-right: 16px; /* 避免和右侧虚线重叠 */
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 4px;
  border-bottom: 1px solid var(--dark-green);
}

/* Tab按钮 - Tab Button (方括号风格) */
.tab-btn {
  position: relative;
  padding: 5px 6px;
  background: transparent;
  border: none;
  color: var(--phosphor-primary, #8aff8a);
  font-family: 'VT323', 'Zpix', monospace;
  font-size: 18px;
  cursor: pointer;
  transition: opacity 0.2s, color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
  opacity: 0.6;
  white-space: nowrap;
}

.tab-btn:hover {
  opacity: 0.8;
}

/* Tab选中效果 - 反白 */
.tab-btn.active {
  background: var(--phosphor-primary, #8aff8a);
  color: #000;
  opacity: 1;
  text-shadow: none;
  box-shadow: 0 0 15px var(--phosphor-dim, #4e9c4e);
}

.tab-btn:focus {
  outline: none;
}

/* 临时标签样式 - Temporary Labels */
.area-label {
  color: var(--terminal-green);
  font-size: 14px;
  padding: 5px;
  text-align: center;
}

/* CRT辉光效果类（可选） - CRT Glow Effect (Optional) */
.crt-glow {
  text-shadow:
    0 0 var(--glow-spread) var(--terminal-green),
    0 0 var(--glow-blur) var(--terminal-green);
}

/* 滚动条样式 - Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  background-color: var(--bg-black);
}

::-webkit-scrollbar-thumb {
  background-color: var(--dark-green);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--terminal-green);
}

/* 选中文本样式 - Text Selection */
::selection {
  background-color: var(--dark-green);
  color: var(--terminal-green);
}

::-moz-selection {
  background-color: var(--dark-green);
  color: var(--terminal-green);
}

/* ========== 未读提示系统样式 ========== */

/* Tab未读星号 - Tab Unread Notification */
.tab-notification {
  position: absolute;
  top: 2px;
  right: -2px;
  color: #fff;
  text-shadow: 0 0 4px #8aff8a, 0 0 8px #8aff8a, 0 0 12px #8aff8a;
  animation: hard-blink 1s steps(2, start) infinite;
  display: none;  /* 默认隐藏 */
  font-size: 14px;
}

/* 生硬闪烁动画 - Hard Blink */
@keyframes hard-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* 解锁闪烁动画（红色→蓝色） */
@keyframes unlock-flash {
  0% {
    background-color: rgba(255, 51, 51, 0.2);  /* 红色 */
  }
  50% {
    background-color: rgba(51, 153, 255, 0.3);  /* 蓝色 */
  }
  100% {
    background-color: transparent;
  }
}

.file-item.unlocking {
  animation: unlock-flash 1s ease-out;
}

/* 阅读模式样式 */
/* 注意：不要对body设置pointer-events，否则无法滚动 */
body.reading-mode .file-item:not(.reading-current) {
  opacity: 0.3;
  cursor: not-allowed !important;
  pointer-events: none;
}

body.reading-mode .tab-btn {
  opacity: 0.3;
  cursor: not-allowed !important;
  pointer-events: none;
}

body.reading-mode .command-input {
  opacity: 0.5;
  cursor: not-allowed !important;
  background-color: rgba(50, 50, 50, 0.5);
}

/* 阅读模式下禁用整个输入区域 */
body.reading-mode .input-area {
  position: relative;
}

body.reading-mode .input-area::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10;
  pointer-events: none;
}

body.reading-mode .input-line,
body.reading-mode .function-bar,
body.reading-mode .system-output {
  opacity: 0.3;
  pointer-events: none;
}

/* 阅读锁定时的禁用元素样式 */
.reading-locked {
  position: relative;
  cursor: not-allowed !important;
  pointer-events: none;  /* 阻止交互但不影响滚动 */
  opacity: 0.5;          /* 半透明效果 */
}

/* 使用伪元素显示禁用效果，但不使用after避免阻挡 */
.reading-locked:hover {
  cursor: not-allowed !important;
}

/* 当前正在阅读的卡片高亮 */
.file-item.reading-current {
  opacity: 1 !important;
  border-color: var(--terminal-green) !important;
  background-color: rgba(0, 255, 0, 0.1);
}

/* ========== 重置确认弹窗 ========== */

/* 遮罩层 */
.reset-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: calc(var(--vh, 1vh) * 100);
  background-color: rgba(0, 0, 0, 0.85);
  z-index: 10000;
  justify-content: center;
  align-items: center;
}

.reset-modal-overlay.active {
  display: flex;
}

/* 弹窗主体 */
.reset-modal {
  background-color: #0a0a0a;
  border: 2px solid var(--phosphor-primary, #00ff41);
  padding: 30px 40px;
  max-width: 450px;
  text-align: center;
  box-shadow:
    0 0 20px rgba(0, 255, 65, 0.3),
    inset 0 0 10px rgba(0, 0, 0, 0.5);
}

/* 警告文本 */
.reset-modal-text {
  margin-bottom: 25px;
}

.reset-warning {
  color: var(--phosphor-primary, #00ff41);
  font-family: 'VT323', 'Zpix', monospace;
  font-size: 18px;
  line-height: 1.6;
  margin: 0;
  white-space: pre-line;
}

/* 按钮容器 */
.reset-modal-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* 按钮样式 */
.reset-btn {
  font-family: 'VT323', 'Zpix', monospace;
  font-size: 16px;
  padding: 8px 20px;
  cursor: pointer;
  background-color: transparent;
  border: 1px solid var(--phosphor-primary, #00ff41);
  color: var(--phosphor-primary, #00ff41);
  transition: all 0.2s ease;
}

.reset-btn:hover {
  background-color: var(--phosphor-primary, #00ff41);
  color: #0a0a0a;
}

.reset-btn.confirm:hover {
  background-color: #ff4444;
  border-color: #ff4444;
  color: #0a0a0a;
}

/* 取消按钮默认较暗 */
.reset-btn.cancel {
  opacity: 0.7;
}

.reset-btn.cancel:hover {
  opacity: 1;
}

/* ========== 超小屏幕适配 (< 400px) ========== */
@media (max-width: 400px) {
  body {
    font-size: 16px;
  }

  .output-line {
    font-size: 18px;
  }

  .prompt,
  .command-input {
    font-size: 18px;
  }

  .func-btn {
    font-size: 14px;
    padding: 4px 6px;
  }

  .file-item {
    font-size: 16px;
    padding: 6px 4px 6px 16px;
  }

  .tab-btn {
    font-size: 14px;
    padding: 4px;
  }

  .card-filename {
    font-size: 16px;
  }

  .text-content {
    font-size: 16px;
  }

  .statistics {
    font-size: 16px;
  }
}