/* ==============================================
   工具全站通用样式 · 深色模式完美适配 · 精简优化版
============================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Microsoft Yahei", sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.3s, color 0.3s;
}

.page-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 20px;
  flex: 1;
}

/* 统一卡片 */
.container,
.converter {
  width: 100%;
  background: var(--card-bg);
  padding: 40px 60px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* 标题统一 */
.converter .header h1,
h1 {
  text-align: center;
  color: var(--title-color);
  margin-bottom: 10px;
  font-size: 28px;
}

.converter .header p {
  text-align: center;
  color: var(--text);
  margin-bottom: 30px;
  font-size: 15px;
  opacity: 0.8;
}

/* 输入结构 */
.input-group {
  margin-bottom: 25px;
}

.input-label,
label {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
}

.input-row {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.amount-input,
input,
select {
  flex: 1;
  min-width: 180px;
  padding: 15px;
  border: 1px solid var(--input-border);
  border-radius: 12px;
  font-size: 16px;
  outline: none;
  background: var(--input-bg);
  color: var(--text);
  transition: border-color 0.3s ease;
}

.amount-input:focus,
input:focus,
select:focus {
  border-color: #f53f3f;
}

.unit-select {
  min-width: 120px;
}

/* 按钮统一 */
.btn {
  border-radius: 12px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.convert-btn,
.swap-btn {
  /* 居中布局 */
  display: block;
  margin: 12px auto;

  /* 比例宽度 不固定死 */
  width: auto;
  min-width: 80%;
  padding: 10px 28px;

  /* 红色主题 */
  background: #f56c6c;
  color: #fff;
  border: none;
  border-radius: 8px;

  font-size: 15px;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.convert-btn:hover,
.swap-btn:hover {
  transform: translateY(-2px);
  background: #f78989;
}

.swap-btn:active {
  background: #e55555;
  transform: translateY(0);
}

.swap-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  background: #f56c6c;
}


/* 结果展示 */
.result-box,
.result-group {
  background: var(--result-bg);
  border-radius: 12px;
  padding: 20px;
  border-left: 4px solid #f53f3f;
  margin-top: 10px;
}

.result-title {
  color: var(--text);
  font-weight: 600;
  margin-bottom: 10px;
  font-size: 16px;
}

.result-content,
.result-grid {
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}

.result-item {
  margin-bottom: 8px;
}

.result-item strong {
  color: #f53f3f;
  font-size: 20px;
}

.result-group {
  display: none;
  padding: 30px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.tip-text {
  margin-top: 15px;
  font-size: 13px;
  color: var(--text);
  opacity: 0.6;
  line-height: 1.5;
}

/* 返回首页 */
.back-home-btn {
  display: block;
  width: fit-content;
  margin: 30px auto 0;
  padding: 14px 30px;
  border: 1px solid #f53f3f;
  border-radius: 8px;
  background: var(--input-bg);
  color: #f53f3f;
  text-decoration: none;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s;
}

.back-home-btn:hover {
  background: #fef2f2;
}

/* 文本域通用 */
.textarea-control,
.ppt-textarea {
  width: 100%;
  min-height: 120px;
  padding: 15px;
  border: 1px solid var(--input-border);
  border-radius: 12px;
  font-size: 16px;
  background: var(--input-bg);
  color: var(--text);
  resize: vertical;
}

/* 表格通用 */
.table-box {
  width: 100%;
  overflow-x: auto;
  margin: 10px 0;
}

.table-box table {
  width: 100%;
  border-collapse: collapse;
  background: var(--input-bg);
  border-radius: 8px;
  overflow: hidden;
}

.table-box th,
.table-box td {
  padding: 12px;
  border: 1px solid var(--input-border);
  text-align: center;
  color: var(--text);
}

/* ==============================================
   深色 / 浅色 变量
============================================== */
:root {
  --bg: #f7f8fa;
  --text: #333;
  --card-bg: #fff;
  --input-bg: #fff;
  --input-border: #dcdfe6;
  --title-color: #2c3e50;
  --result-bg: #fef2f2;
}

[data-theme="dark"] {
  --bg: #1a1a1a;
  --text: #e0e0e0;
  --card-bg: #2a2a2a;
  --input-bg: #333;
  --input-border: #555;
  --title-color: #f0f0f0;
  --result-bg: #3a1a1a;
}

/* ==============================================
   全站工具公共组件（统一所有页面风格）
============================================== */
.tool-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--input-border);
}

.tool-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--title-color);
}

.tool-back {
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
}

.tool-back:hover {
  border-color: #f53f3f;
  color: #f53f3f;
}

/* 按钮色系 */
.btn-primary { background: #f53f3f; color: #fff; }
.btn-success { background: #10b981; color: #fff; }
.btn-danger  { background: #ef4444; color: #fff; }
.btn-secondary { background: var(--input-bg); color: var(--text); border: 1px solid var(--input-border); }
.btn-primary:hover { background: #d92a2a; }
.btn-success:hover { opacity: 0.9; }
.btn:disabled { background: #ccc; cursor: not-allowed; opacity: 0.7; }

/* 上传区域 */
.upload-area {
  border: 2px dashed var(--input-border);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  margin-bottom: 24px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
}
.upload-area:hover {
  border-color: #f53f3f;
}
#fileInput { display: none; }

/* 图片预览盒子 */
.image-box {
  width: 100%;
  height: 600px;
  border: 2px dashed var(--input-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--input-bg);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.image-box:hover {
  border-color: #f53f3f;
}
.image-placeholder {
  color: var(--text);
  opacity: 0.6;
  font-size: 16px;
  text-align: center;
}
.image-placeholder div {
  font-size: 50px;
  margin-bottom: 10px;
  opacity: 0.5;
}

/* ==============================================
   JSON / 正则 / 代码 专用
============================================== */
.json-box {
  width: 100%;
  min-height: 220px;
  padding: 16px;
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  font-size: 15px;
  line-height: 1.6;
  resize: vertical;
  font-family: monospace;
}
.json-key { color: #f53f3f; font-weight: 600; }
.json-str { color: #059669; }
.json-num { color: #2563eb; }

.regex-match {
  background: #fef2f2;
  color: #f53f3f;
  font-weight: bold;
  padding: 2px 4px;
  border-radius: 4px;
}

/* ==============================================
   科学计算器
============================================== */
.calc-wrap { width: 100%; }
.calc-display {
  width: 100%;
  padding: 20px 24px;
  font-size: 32px;
  font-weight: 500;
  text-align: right;
  border: 1px solid var(--input-border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text);
  margin-bottom: 16px;
  outline: none;
  letter-spacing: 1px;
}
.calc-mode-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.calc-mode-btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}
.calc-mode-btn.active {
  background: #f53f3f;
  color: #fff;
  border-color: #f53f3f;
}
.calc-basic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.calc-sci-grid {
  display: none;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.calc-btn {
  padding: 18px 0;
  font-size: 20px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
}
.calc-btn:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
}
.calc-btn:active {
  transform: translateY(1px);
  opacity: 0.9;
}
[data-theme="dark"] .calc-btn:hover { background: #404040; }
.calc-btn-func { color: #f53f3f; background: var(--result-bg); }
.calc-btn-op { background: #f53f3f; color: #fff; border-color: #f53f3f; }
.calc-btn-op:hover { background: #d92a2a; }
.calc-span-2 { grid-column: span 2; }

/* ==============================================
   万年历 / 秒表 / 倒计时 / 计时器
============================================== */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  text-align: center;
  margin: 10px 0;
}
.calendar-day {
  padding: 10px;
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
}
.calendar-today { background: #f53f3f; color: #fff; }

.stopwatch-display,
.time-display {
  font-size: 48px;
  text-align: center;
  padding: 20px 0;
  font-weight: 600;
  color: var(--text);
}
.speech-time-show {
  font-size: 48px;
  text-align: center;
  padding: 30px 0;
  font-weight: bold;
  color: #f53f3f;
}
.time-btns,
.stopwatch-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

/* ==============================================
   配色 / 字体 / 卡片展示类
============================================== */
.color-card-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 15px 0;
}
.color-card {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
}
.color-block { height: 80px; }
.color-name { text-align: center; padding: 8px; font-size: 14px; color: var(--text); }

.font-card-list,
.resume-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin: 15px 0;
}
.font-card,
.resume-card {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
}

/* ==============================================
   二维码 / 条形码
============================================== */
.qrcode-box,
.barcode-box {
  display: flex;
  justify-content: center;
  padding: 20px;
  background: var(--input-bg);
  border-radius: 12px;
  margin: 10px 0;
  min-height: 200px;
  align-items: center;
}

/* ==============================================
   图片批量水印工具
============================================== */
.watermark-tool { width: 100%; }
.watermark-tabs {
  display: flex;
  gap: 8px;
  background: var(--input-bg);
  padding: 6px;
  border-radius: 10px;
  margin-bottom: 20px;
}
.watermark-tab {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
}
.watermark-tab.active { background: #f53f3f; color: #fff; }
.watermark-controls {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
}
.watermark-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.watermark-inline-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}
.watermark-label { font-size: 14px; color: var(--text); font-weight: 500; }
.watermark-input {
  padding: 12px 14px;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text);
  min-width: 160px;
}
.watermark-color {
  width: 50px;
  height: 40px;
  padding: 2px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
}
.watermark-btns {
  display: flex;
  gap: 10px;
  margin-left: auto;
}
.watermark-viewer {
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 20px;
  min-height: 400px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  background: var(--input-bg);
  max-height: 600px;
  overflow-y: auto;
}
.watermark-item {
  width: 150px;
  height: 150px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.watermark-thumb { max-width: 100%; max-height: 100%; object-fit: contain; }
.watermark-status {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 4px;
  font-size: 12px;
  text-align: center;
  color: #fff;
  background: rgba(0,0,0,0.5);
}
.watermark-placeholder { color: var(--text); opacity: 0.6; font-size: 16px; text-align: center; margin: auto; }
.watermark-progress { margin-top: 20px; display: none; }
.watermark-progress-bar {
  width: 100%;
  height: 10px;
  background: var(--input-border);
  border-radius: 5px;
  overflow: hidden;
}
.watermark-progress-fill {
  height: 100%;
  background: #f53f3f;
  width: 0%;
  transition: width 0.3s;
}
.watermark-progress-text {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text);
  opacity: 0.7;
  text-align: center;
}
.watermark-download { margin-top: 20px; text-align: center; }

/* ==============================================
   GIF 分解 / 图片去水印 / 旋转 / 放大 / 降噪 / 上色 / 格式转换
============================================== */
.gif-split-box {
  width: 100%;
  min-height: 400px;
  max-height: 600px;
  overflow-y: auto;
  border: 2px dashed var(--input-border);
  border-radius: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 20px;
  background: var(--input-bg);
  position: relative;
}
.gif-frame-item {
  width: 120px;
  height: 120px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  background: #fff;
}
.gif-frame-img { width: 100%; height: 100%; object-fit: contain; }
.gif-frame-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2px 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 10px;
  text-align: center;
}
#wm-mask {
  position: absolute;
  border: 2px solid #ef4444;
  background: rgba(239, 68, 68, 0.15);
  display: none;
  pointer-events: none;
}
#canvas { display: none; }

/* ==============================================
   滑块统一样式
============================================== */
input[type="range"] {
  appearance: none;
  height: 6px;
  background: var(--input-border);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #f53f3f;
  cursor: pointer;
}

/* ==============================================
   图片压缩｜加载动画
============================================== */
.compress-loading { display: none; text-align: center; padding: 30px 0; color: var(--text); }
.compress-spin {
  width: 36px;
  height: 36px;
  border: 3px solid var(--input-border);
  border-top: 3px solid #f53f3f;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 14px;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ==============================================
   文本对比高亮
============================================== */
.diff-add { background: #e6ffed; color: #007d00; padding: 2px 4px; border-radius: 3px; }
.diff-remove { background: #ffebeb; color: #d00; padding: 2px 4px; border-radius: 3px; }

/* ==============================================
   BMI 结果颜色
============================================== */
.bmi-result-normal { color: #10b981; font-weight: bold; }
.bmi-result-warning { color: #f59e0b; font-weight: bold; }
.bmi-result-danger { color: #f53f3f; font-weight: bold; }

/* ==============================================
   倒计时工具（仅分钟模式 · 深色完美适配）
============================================== */
.countdown-tool { width: 100%; }
.countdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--input-border);
}
.countdown-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--title-color);
}
.countdown-back {
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  font-size: 14px;
  transition: all 0.2s;
  cursor: pointer;
}
.countdown-back:hover {
  border-color: #f53f3f;
  color: #f53f3f;
}
.countdown-input-wrap {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.countdown-input {
  padding: 10px 12px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  font-size: 15px;
  outline: none;
  background: var(--input-bg);
  color: var(--text);
}
.countdown-input:focus {
  border-color: #f53f3f;
}
.countdown-show {
  text-align: center;
  padding: 30px;
  background: var(--result-bg);
  border-radius: 12px;
  margin: 20px 0;
}
.countdown-date-text {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 15px;
  opacity: 0.9;
}
.countdown-time-text {
  font-size: 48px;
  font-weight: bold;
  color: #f53f3f;
  letter-spacing: 4px;
}
.countdown-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 10px;
}
.countdown-btn {
  padding: 11px 28px;
  border-radius: 8px;
  border: none;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 15px;
  color: #fff;
}
.countdown-btn.start { background: #f53f3f; }
.countdown-btn.pause { background: #40a9ff; }
.countdown-btn.reset { background: #8c8c8c; }

/* ==============================================
   移动端适配
============================================== */
@media (max-width: 768px) {
  .container, .converter { padding: 30px 20px; }
  .converter .header h1, h1 { font-size: 24px; }
  .result-grid { grid-template-columns: 1fr; }
  .calc-display { font-size: 22px; padding: 15px; }
  .calc-btn { padding: 15px 0; font-size: 16px; }
  .time-display, .stopwatch-display, .speech-time-show { font-size: 36px; }
  .countdown-time-text { font-size: 32px; }
  .countdown-btn { padding: 10px 20px; }
}
/* ==============================================
   简繁转换工具专用样式（完美适配全站主题）
============================================== */
.jf-tool {
  max-width: 800px;
  margin: 0 auto;
}
.jf-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--input-border);
}
.jf-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--title-color);
}
.jf-back {
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.jf-back:hover {
  border-color: #f53f3f;
  color: #f53f3f;
}
.jf-desc {
  text-align: center;
  color: var(--text);
  opacity: 0.75;
  margin-bottom: 20px;
  font-size: 15px;
}
.jf-textarea {
  width: 100%;
  min-height: 180px;
  padding: 16px;
  border-radius: 12px;
  font-size: 16px;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
  margin-bottom: 20px;
}
.jf-textarea:focus {
  border-color: #f53f3f;
}
.jf-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}
.jf-btn {
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.jf-btn.primary {
  background: #f53f3f;
  color: #fff;
}
.jf-btn.green {
  background: #10b981;
  color: #fff;
}
.jf-btn.gray {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
}
.jf-btn.primary:hover { background: #d92a2a; }
.jf-btn.green:hover { opacity: 0.9; }
.jf-btn.gray:hover { border-color: #f53f3f; color: #f53f3f; }
.jf-result-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.jf-result {
  width: 100%;
  min-height: 120px;
  padding: 16px;
  border-radius: 12px;
  background: var(--result-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.7;
}
/* 简繁转换统一按钮 word-btn */
.word-btn {
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.word-btn.primary {
  background: #f53f3f;
  color: #fff;
}
.word-btn.green {
  background: #10b981;
  color: #fff;
}
.word-btn.clear,
.word-btn.copy {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--input-border);
}
.word-btn.primary:hover { background: #d92a2a; }
.word-btn.green:hover { opacity: 0.9; }
.word-btn.clear:hover,
.word-btn.copy:hover {
  border-color: #f53f3f;
  color: #f53f3f;
}
/* 上传区域样式 */
.tool-upload-area {
  border: 2px dashed #ccc;
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  margin: 20px 0;
  transition: all 0.25s ease;
  cursor: pointer;
  background: #fafafa;
}

.tool-upload-area.active {
  border-color: #409eff;
  background: #f0f7ff;
}

.tool-upload-area i {
  font-size: 48px;
  color: #999;
  margin-bottom: 15px;
  display: block;
}

.tool-upload-area p {
  font-size: 16px;
  color: #333;
  margin: 0 0 8px;
}

.tool-upload-area small {
  font-size: 13px;
  color: #999;
}

.tool-upload-area input[type="file"] {
  display: none;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
  .tool-upload-area {
    border-color: #444;
    background: #2a2a2a;
  }
  .tool-upload-area.active {
    border-color: #409eff;
    background: #23344d;
  }
  .tool-upload-area p {
    color: #eee;
  }
}
/* 按钮栏 全站统一样式 */
.tool-btn-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
  margin: 24px 0;
}

.tool-btn-bar .btn {
  min-width: 110px;
  padding: 10px 24px;
  font-size: 15px;
  border-radius: 8px;
  border: none;
  transition: all 0.2s ease;
}

/* 主按钮 蓝色 全站统一 */
.tool-btn-bar .btn-primary {
  background-color: #409eff;
  color: #fff;
}
.tool-btn-bar .btn-primary:hover {
  background-color: #66b1ff;
}
.tool-btn-bar .btn-primary:active {
  background-color: #338eef;
}

/* 成功按钮 绿色 全站统一 */
.tool-btn-bar .btn-success {
  background-color: #67c23a;
  color: #fff;
}
.tool-btn-bar .btn-success:hover {
  background-color: #85ce61;
}
.tool-btn-bar .btn-success:active {
  background-color: #529b2e;
}

/* 危险按钮 红色 全站统一 */
.tool-btn-bar .btn-danger {
  background-color: #f56c6c;
  color: #fff;
}
.tool-btn-bar .btn-danger:hover {
  background-color: #f78989;
}
.tool-btn-bar .btn-danger:active {
  background-color: #e55555;
}

/* 禁用态统一 */
.tool-btn-bar .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background-color: #ccc !important;
}

/* 移动端自适应 */
@media (max-width: 768px) {
  .tool-btn-bar {
    flex-direction: column;
    gap: 10px;
  }
  .tool-btn-bar .btn {
    width: 80%;
    min-width: auto;
  }
}
/* 原始浏览器默认样式，无任何美化 */
input[type="range"] {
  -webkit-appearance: auto;
  appearance: auto;
  width: 100%;
  margin: 10px 0;
}
#chartBox {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    min-height: 400px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
/* 折线图工具 一行两列布局 */
.tool-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.tool-row .tool-form-group {
  flex: 1;
  margin: 0;
}
#chartBox {
  border-radius: 12px;
  min-height: 400px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

/* 日常工具卡片面板 - 强制生效版 */
.tool-group-panel {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 30px 20px;
  background: var(--card-bg);
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.panel-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 25px;
  text-align: center;
}
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}
.tool-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 12px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: all 0.24s ease;
  min-height: 60px;
}
.tool-card:hover {
  border-color: #f53f3f;
  color: #f53f3f;
  transform: translateY(-2px);
}
/* HTTP状态码表格 通用样式 */
.http-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.http-table th,
.http-table td {
  padding: 14px 12px;
  text-align: center;
  border: 1px solid var(--input-border);
  color: var(--text);
  font-size: 15px;
}

.http-table th {
  background: #f53f3f;
  color: #fff;
  font-weight: 600;
}

.http-table tr:nth-child(even) {
  background: var(--input-bg);
}

.http-table tr:hover {
  background: var(--result-bg);
}

/* 状态码分类颜色 */
.http-table .code-1xx { color: #409eff; }
.http-table .code-2xx { color: #10b981; }
.http-table .code-3xx { color: #f59e0b; }
.http-table .code-4xx { color: #ff7d00; }
.http-table .code-5xx { color: #f53f3f; font-weight: 600; }

/* 移动端适配 */
@media (max-width: 768px) {
  .http-table th,
  .http-table td {
    padding: 10px 6px;
    font-size: 13px;
  }
}
/* 倒计时专用样式 */
.countdown-input-wrap {
    gap: 12px;
    align-items: center;
    justify-content: center;
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.countdown-input-wrap span {
    font-size: 20px;
    color: var(--text);
}
.countdown-input {
    width: 100px;
    text-align: center;
    font-size: 22px !important;
    padding: 14px 10px !important;
}

.quick-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.quick-btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
}
.quick-btn:hover {
    border-color: #f53f3f;
    color: #f53f3f;
}

.countdown-time-text {
    font-size: 36px;
    font-weight: bold;
    letter-spacing: 2px;
}
/* 专业秒表专用样式 */
body {
    background: var(--bg);
}
.converter {
    text-align: center;
    padding: 40px 20px;
}
.countdown-title {
    font-size: 28px;
    margin-bottom: 40px;
}
.stopwatch-time {
    font-size: 60px;
    font-weight: bold;
    letter-spacing: 3px;
    margin: 40px 0;
    color: var(--text);
}
.btn-wrap {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}
.stop-btn {
    padding: 12px 30px;
    font-size: 18px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    min-width: 100px;
}
.stop-btn.start {
    background: #10b981;
    color: #fff;
}
.stop-btn.pause {
    background: #f59e0b;
    color: #fff;
}
.stop-btn.reset {
    background: #ef4444;
    color: #fff;
}
/* PPT尺寸计算器 专用样式（无冲突版） */
.ppt-size-header {
    text-align: center;
    margin-bottom: 30px;
}
.ppt-size-header h1 {
    font-size: 26px;
    color: var(--text);
    margin: 0 0 10px 0;
}
.ppt-size-header p {
    color: var(--text);
    opacity: 0.7;
    font-size: 15px;
    margin: 0;
}

.ppt-size-row {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.ppt-size-input-group {
    flex: 1;
    min-width: 220px;
    margin-bottom: 20px;
}
.ppt-size-input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
}

.ppt-size-input,
.ppt-size-select {
    width: 100%;
    padding: 14px 12px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 16px;
    box-sizing: border-box;
    outline: none;
}
.ppt-size-input:focus,
.ppt-size-select:focus {
    border-color: #f53f3f;
}

.ppt-size-btn {
    width: 100%;
    padding: 14px;
    border-radius: 8px;
    background: #f53f3f;
    color: #fff;
    font-size: 16px;
    border: none;
    cursor: pointer;
    margin: 10px 0 25px;
    transition: 0.2s;
}
.ppt-size-btn:hover {
    opacity: 0.9;
}

.ppt-size-result-box {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    padding: 20px;
    margin-top: 10px;
}
.ppt-size-result-title {
    font-size: 17px;
    color: var(--text);
    font-weight: bold;
    margin-bottom: 12px;
}
.ppt-size-result-content {
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
    white-space: pre-line;
}
/* 简历模板专用样式 */
.resume-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}
.resume-page-header {
    text-align: center;
    margin-bottom: 40px;
}
.resume-page-header h1 {
    font-size: 30px;
    color: var(--text);
    margin: 0 0 10px;
}
.resume-page-header p {
    color: var(--text);
    opacity: 0.75;
    font-size: 16px;
}

.resume-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.resume-card {
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    padding: 28px 24px;
    border: 1px solid var(--input-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.resume-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #f53f3f;
}
.resume-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.resume-info strong {
    display: block;
    font-size: 20px;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.resume-info .tip-text {
    color: #f53f3f;
    font-size: 14px;
    margin: 0 0 10px;
    font-weight: 500;
}
.resume-info p:last-child {
    color: var(--text);
    opacity: 0.8;
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

.resume-notice-box {
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}
.resume-notice-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 20px;
    padding-left: 12px;
    border-left: 4px solid #f53f3f;
}
.resume-notice-content p {
    font-size: 16px;
    color: var(--text);
    line-height: 1.8;
    margin: 8px 0;
}

/* 弹窗样式 */
.resume-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}
.modal-content {
    background: var(--card-bg);
    width: 90%;
    max-width: 700px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}
.modal-header {
    padding: 16px 20px;
    background: #f53f3f;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-close {
    font-size: 24px;
    cursor: pointer;
}
.modal-body {
    padding: 20px;
    max-height: 70vh;
    overflow-y: auto;
}
.resume-pre {
    white-space: pre-wrap;
    color: var(--text);
    font-size: 15px;
    line-height: 1.7;
}
.modal-footer {
    padding: 15px 20px;
    text-align: right;
    border-top: 1px solid var(--input-border);
}
.modal-copy {
    padding: 8px 16px;
    background: #f53f3f;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

/* 移动端 */
@media (max-width: 768px) {
    .resume-card-list {
        grid-template-columns: 1fr;
    }
}
/* 条形码生成器 专用样式 */
.barcode-box {
    margin: 20px 0;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    text-align: center;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.barcode-btn-group {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    justify-content: center;
}

/* 真正缩小按钮 */
.barcode-btn-group button {
    padding: 6px 14px !important;
    font-size: 13px !important;
    min-width: auto !important;
    width: auto !important;
    flex: none !important;
}
/* 图片格式转换工具 - 介绍/说明/问答/热搜 统一样式 */
.tool-info {
    max-width: 768px;
    margin: 30px auto 0;
    padding: 20px 24px;
    background: #f9fafb;
    border-radius: 12px;
    line-height: 1.7;
    color: #333;
    font-size: 15px;
}
.tool-info h2 {
    font-size: 18px;
    margin: 0 0 12px;
    color: #222;
    font-weight: 600;
}
.tool-info p {
    margin: 0 0 10px;
}
.tool-info ol {
    padding-left: 20px;
    margin: 0;
}
.tool-info li {
    margin-bottom: 6px;
}
.tool-info .section {
    margin-bottom: 20px;
}
.tool-info .section:last-child {
    margin-bottom: 0;
}
.faq-item {
    margin-bottom: 12px;
}
.faq-item h4 {
    margin: 0 0 6px;
    font-size: 15px;
    color: #222;
}
.faq-item p {
    margin: 0;
    color: #555;
}
.tags-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.tag-item {
    background: #eef1f5;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    color: #444;
}

/* 底部背景说明板块 */
.tool-bottom-desc {
    max-width: 768px;
    margin: 40px auto 30px;
    padding: 24px;
    background: #f5f7fa;
    border-radius: 12px;
    line-height: 1.8;
    font-size: 15px;
    color: #666;
    text-align: left; /* 强制文字左对齐 */
}
.tool-bottom-desc h2 {
    font-size: 18px;
    margin: 0 0 12px;
    color: #555;
    font-weight: 600;
    text-align: left;
}
.tool-bottom-desc p {
    margin: 0 0 10px;
    color: #666;
    text-align: left;
}
/* 工具卡片组 - 移动端自适应 */
@media (max-width: 768px) {
  .tool-group-panel {
    padding: 20px 15px !important;
  }
  .panel-title {
    font-size: 18px !important;
    margin-bottom: 18px !important;
  }
  .tool-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)) !important;
    gap: 10px !important;
  }
  .tool-card {
    min-height: 50px !important;
    font-size: 14px !important;
    padding: 12px 8px !important;
  }
}


/* 裁剪PDF专用 - 输入框组布局 */
.crop-options {
  display: flex;
  gap: 10px;
  width: 100%;
}
.crop-options .input-group {
  flex: 1;
  min-width: 0; /* 防止内容溢出 */
}
.crop-options .input-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: #666;
  text-align: center;
}
.crop-options .input-group input {
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}

@media (max-width: 768px) {
  .crop-options {
    flex-wrap: wrap;
  }
  .crop-options .input-group {
    flex: 1 1 45%;
  }
}
.site-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 15px;
        }