/* 仿 Windows 10 经典 WinForms 外观。默认字体对应中文 Windows 上的宋体 9pt。 */

.wf-window {
  position: absolute;
  background: #f0f0f0;
  border: 1px solid #1883d7;
  box-shadow: 0 6px 24px rgb(0 0 0 / 0.25);
  font-family: "SimSun", "Songti SC", "Noto Serif CJK SC", "Noto Serif SC", serif;
  font-size: 12px;
  color: #000;
  user-select: none;
}

.wf-window-modal {
  z-index: 100000;
}

.wf-titlebar {
  display: flex;
  align-items: center;
  height: 30px;
  background: #fff;
  cursor: default;
}

.wf-title {
  flex: 1;
  padding-left: 8px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
}

.wf-titlebar-button {
  width: 46px;
  line-height: 30px;
  text-align: center;
  font-size: 11px;
  color: #333;
}

.wf-titlebar-close:hover {
  background: #e81123;
  color: #fff;
}

.wf-client {
  position: relative;
  overflow: hidden;
}

.wf-control {
  position: absolute;
  box-sizing: border-box;
  font: inherit;
  color: inherit;
}

.wf-button {
  background: #e1e1e1;
  border: 1px solid #adadad;
  padding: 0;
  cursor: default;
}

.wf-button:hover:not(:disabled) {
  background: #e5f1fb;
  border-color: #0078d7;
}

.wf-button:active:not(:disabled) {
  background: #cce4f7;
  border-color: #005499;
}

.wf-button:disabled,
.wf-disabled {
  color: #a0a0a0;
}

.wf-label {
  white-space: pre;
  overflow: hidden;
}

.wf-textbox input,
.wf-textbox textarea,
.wf-combobox input {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  border: 1px solid #7a7a7a;
  background: #fff;
  font: inherit;
  color: inherit;
  padding: 1px 2px;
  outline: none;
  resize: none;
}

.wf-textbox input:focus,
.wf-textbox textarea:focus,
.wf-combobox input:focus {
  border-color: #0078d7;
}

.wf-textbox input[readonly],
.wf-textbox textarea[readonly] {
  background: #f0f0f0;
}

.wf-combobox input {
  padding-right: 18px;
}

.wf-combobox-arrow {
  position: absolute;
  right: 1px;
  top: 1px;
  bottom: 1px;
  width: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  background: #fff;
}

.wf-combobox-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 5;
  margin: 0;
  padding: 0;
  list-style: none;
  background: #fff;
  border: 1px solid #646464;
  max-height: 160px;
  overflow-y: auto;
}

.wf-combobox-list li {
  padding: 1px 3px;
}

.wf-combobox-list li:hover {
  background: #0078d7;
  color: #fff;
}

.wf-picturebox {
  overflow: hidden;
}

.wf-picturebox img {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  user-select: none;
}

.wf-picturebox-border-FixedSingle {
  border: 1px solid #646464;
}

.wf-picturebox-border-Fixed3D {
  border: 2px inset #a0a0a0;
}

.wf-listbox {
  overflow-y: auto;
  overflow-x: hidden;
  background: #fff;
  cursor: default;
}

.wf-listbox-border-Fixed3D {
  border: 1px solid #828790;
}

.wf-listbox-border-FixedSingle {
  border: 1px solid #646464;
}

.wf-listbox-item {
  padding: 0 2px;
  white-space: pre;
  overflow: hidden;
}

.wf-listbox-selected {
  background: #0078d7;
  color: #fff;
}

.wf-disabled .wf-listbox-selected {
  background: #bfbfbf;
}

.wf-check {
  display: flex;
  align-items: center;
  gap: 3px;
  white-space: pre;
  cursor: default;
}

.wf-checkbox-box,
.wf-radio-dot {
  flex: none;
  width: 13px;
  height: 13px;
  box-sizing: border-box;
  border: 1px solid #333;
  background: #fff;
}

.wf-radio-dot {
  border-radius: 50%;
}

.wf-checkbox-box[data-checked="true"]::after {
  content: "✓";
  display: block;
  font: bold 11px/11px sans-serif;
  text-align: center;
  color: #333;
}

.wf-radio-dot[data-checked="true"] {
  background: radial-gradient(circle, #333 0 3px, #fff 3.5px);
}

.wf-check:hover:not(.wf-disabled) .wf-checkbox-box,
.wf-check:hover:not(.wf-disabled) .wf-radio-dot {
  border-color: #0078d7;
}

.wf-device-image {
  overflow: hidden;
}

/* 与教材控件一致：图片以原始尺寸从左上角显示 */
.wf-device-image img {
  display: block;
  user-select: none;
}

.wf-groupbox-frame {
  position: absolute;
  inset: 6px 0 0 0;
  border: 1px solid #dcdcdc;
  border-radius: 2px;
}

.wf-groupbox-caption {
  position: absolute;
  left: 6px;
  top: 0;
  padding: 0 2px;
  background: #f0f0f0;
  line-height: 12px;
  white-space: pre;
}

.wf-led {
  overflow: hidden;
  background: #000;
  color: red;
}

.wf-led-text {
  position: absolute;
  top: 20px;
  left: 0;
  line-height: 1;
  white-space: pre;
  animation: wf-led-scroll linear infinite;
}

@keyframes wf-led-scroll {
  from {
    transform: translateX(var(--wf-led-from));
  }
  to {
    transform: translateX(var(--wf-led-to));
  }
}

.wf-modal-backdrop {
  position: absolute;
  inset: 0;
  /* 在所有窗体（包括模态窗体）之上 */
  z-index: 200000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgb(0 0 0 / 0.08);
}

.wf-messagebox {
  position: static;
  min-width: 240px;
  max-width: 480px;
}

.wf-messagebox-body {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 24px 28px;
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

.wf-messagebox-icon {
  font-size: 28px;
}

.wf-messagebox-text {
  white-space: pre-wrap;
}

.wf-messagebox-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 12px;
}

.wf-messagebox-buttons .wf-button {
  min-width: 75px;
  height: 23px;
}