/* ============================================================
   关于我们 · 拖拽布局器（后台）
   三栏：组件库 200px | 自适应画布 | 属性面板 260px
   ============================================================ */

/* —— 入口按钮组（板块内容编辑顶部切换） —— */
.builder-entry-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: linear-gradient(135deg, rgba(var(--primary-rgb,65,105,225), 0.08), rgba(var(--primary-rgb,65,105,225), 0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.builder-entry-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: all .18s ease;
  font-family: inherit;
}
.builder-entry-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}
.builder-entry-btn.builder-entry-active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
  box-shadow: 0 3px 10px rgba(var(--primary-rgb,65,105,225), 0.3);
  font-weight: 600;
}
.builder-entry-btn.builder-entry-active:hover {
  color: #fff;
}
.builder-entry-hint {
  font-size: 12px;
  color: var(--text-muted, #888);
  opacity: .8;
  flex: 1;
  min-width: 180px;
}
.builder-entry-spacer { flex: 1; min-width: 20px; }
.builder-tool-btn {
  padding: 6px 14px;
  font-size: 13px;
  border-color: var(--border-light, #e5e7eb);
  background: transparent;
  color: var(--text-muted, #666);
}
.builder-tool-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.06);
}

/* ============================================================
   Builder 根容器
   ============================================================ */

/* Builder 根容器：两列（组件库 + 自适应宽画布） */
.abt-builder-wrap {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--card);
  padding: 12px;
  min-height: 500px;
  margin-top: 6px;
}

/* 面板通用标题 */
.abt-builder-title {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

/* —— 左侧：组件库 —— */
.abt-builder-sidebar {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.abt-builder-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.abt-builder-add-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  text-align: left;
  transition: border-color .15s, background .15s, transform .1s;
  font-family: inherit;
}
.abt-builder-add-btn:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.06);
  transform: translateY(-1px);
}
.abt-builder-add-ico {
  font-size: 20px;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--primary-rgb,65,105,225), 0.08);
  border-radius: 6px;
}
.abt-builder-add-name {
  flex: 1;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.2;
}
.abt-builder-add-grp {
  font-size: 10px;
  color: var(--muted, #888);
  opacity: .7;
}

/* —— 中间：画布（加宽） —— */
.abt-builder-main {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

/* 画布顶部工具栏 */
.abt-builder-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.abt-builder-toolbar-left,
.abt-builder-toolbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}
.abt-builder-toolbar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.abt-builder-toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  font-family: inherit;
  transition: border-color .15s, background .15s;
}
.abt-builder-toolbar-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.abt-builder-toolbar-btn.is-active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}
.abt-builder-toolbar-hint {
  font-size: 11px;
  color: var(--muted, #888);
  opacity: .7;
}

.abt-builder-canvas {
  flex: 1;
  overflow: auto;
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  min-height: 500px;
  transition: padding .15s;
}
/* 画布方向：纵向（默认） */
.abt-builder-canvas.is-vertical {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
/* 画布方向：横向（组件自动换行） */
.abt-builder-canvas.is-horizontal {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}
.abt-builder-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted, #888);
  font-size: 13px;
  opacity: .7;
}

/* 画布内组件卡片 */
.abt-builder-comp {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  padding: 14px;
  cursor: move;
  transition: border-color .15s, box-shadow .15s;
  /* 默认为全宽（纵向画布）；横向画布下自动变成半宽 */
  width: 100%;
  box-sizing: border-box;
}
.abt-builder-canvas.is-horizontal .abt-builder-comp {
  width: calc(50% - 5px);
  min-width: 260px;
}
/* 强制全宽（半宽模式下点击"全宽"按钮） */
.abt-builder-comp.is-full {
  width: 100% !important;
}
.abt-builder-comp:hover {
  border-color: var(--primary);
}
.abt-builder-comp.is-selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(var(--primary-rgb,65,105,225), 0.2);
}
.abt-builder-comp.is-dragging {
  opacity: 0.4;
}
.abt-builder-comp.is-drop-target {
  border-color: var(--primary);
  border-style: dashed;
}

/* 组件头部操作条 */
.abt-builder-comp-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.abt-builder-comp-drag {
  cursor: grab;
  opacity: .5;
  font-size: 14px;
  flex-shrink: 0;
  user-select: none;
}
.abt-builder-comp-drag:active {
  cursor: grabbing;
}
.abt-builder-comp-type {
  flex: 1;
  font-weight: 600;
  color: var(--text);
  font-size: 12.5px;
}
.abt-builder-comp-actions {
  display: flex;
  gap: 2px;
}
.abt-builder-comp-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: .55;
  transition: opacity .15s, background .15s;
  color: var(--text);
  font-family: inherit;
}
.abt-builder-comp-btn:hover {
  opacity: 1;
  background: rgba(0,0,0,0.06);
}
.abt-builder-comp-btn.abt-builder-comp-edit {
  background: rgba(var(--primary-rgb,65,105,225), 0.1);
  color: var(--primary);
  opacity: 1;
}
.abt-builder-comp-btn.abt-builder-comp-edit:hover {
  background: rgba(var(--primary-rgb,65,105,225), 0.2);
}
.abt-builder-comp-btn.abt-builder-comp-del:hover {
  background: rgba(220,53,69,0.15);
  color: #dc3545;
}
.abt-builder-comp-preview {
  pointer-events: none; /* 组件内部（文字/图片）不拦截 click，让整个卡片被选中 */
}
.abt-builder-comp-preview a,
.abt-builder-comp-preview button {
  pointer-events: auto;
}
/* 但 slot 区域和 slot 内的嵌套组件必须能接收事件——
   它们需要被点击选中、被拖拽、接收 drop */
.abt-builder-comp-preview .abt-builder-slot,
.abt-builder-comp-preview .abt-builder-slot-empty,
.abt-builder-comp-preview .abt-builder-slot [data-comp-id] {
  pointer-events: auto;
}

/* 容器组件标签 */
.abt-builder-comp-container-tag {
  display: inline-block;
  padding: 1px 6px;
  font-size: 10px;
  background: rgba(var(--primary-rgb,65,105,225), 0.1);
  color: var(--primary);
  border-radius: 3px;
  font-weight: 500;
  margin-left: 4px;
  line-height: 1.4;
}

/* 嵌套组件卡片（slot 内） */
.abt-builder-comp.is-nested {
  border-width: 1px;
}
.abt-builder-comp.is-nested .abt-builder-comp-head {
  font-size: 11.5px;
  padding-bottom: 4px;
  margin-bottom: 6px;
}

/* —— Slot drop zone —— */
.abt-builder-slot {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 40px;
  padding: 6px;
  border: 1px dashed transparent;
  border-radius: 6px;
  transition: border-color .15s, background .15s;
}
.abt-builder-slot-empty {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border);
  border-radius: 6px;
  color: var(--muted, #999);
  font-size: 12px;
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s;
  pointer-events: auto; /* 空 slot 也要能接收 drop */
}
.abt-builder-slot-empty:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.04);
  color: var(--primary);
}
.abt-builder-slot-empty span {
  pointer-events: none;
}
/* drop 高亮：slot-over 或 slot 有 is-drop-target 子组件时 */
.abt-builder-slot.is-slot-over,
.abt-builder-slot-empty.is-slot-over {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.08);
}
.abt-builder-slot .abt-builder-comp.is-drop-target,
.abt-builder-slot-empty.is-slot-over + .abt-builder-comp {
  border-color: var(--primary);
}

/* 容器组件的 slot cell（在 COMPONENTS 渲染里用）
   ⚠️ 全部包在 .abt-builder-wrap 里——09-about-builder.css 会被前台也加载，
   这些是 Builder 设计器专属的视觉辅助，不能影响前台最终页面 */
.abt-builder-wrap .abt-el-two-col {
  display: grid;
  gap: 12px;
  margin: 8px 0;
  /* Builder 预览里关掉响应式——不管画布多窄都要左右分栏，
     因为 Builder 是设计器，设计的是桌面布局 */
  grid-template-columns: 1fr 1fr !important;
}
.abt-builder-wrap .abt-el-two-col-1-1 { grid-template-columns: 1fr 1fr !important; }
.abt-builder-wrap .abt-el-two-col-2-1 { grid-template-columns: 2fr 1fr !important; }
.abt-builder-wrap .abt-el-two-col-1-2 { grid-template-columns: 1fr 2fr !important; }
.abt-builder-wrap .abt-el-two-col-cell {
  min-height: 40px;
  position: relative;
  padding-top: 22px;
  background: rgba(var(--primary-rgb,65,105,225), 0.03);
  border: 1px dashed rgba(var(--primary-rgb,65,105,225), 0.25);
  border-radius: 6px;
}
/* "左"/"右" 角标：Builder 设计器里让用户一眼分清哪边左哪边右 */
.abt-builder-wrap .abt-el-two-col-cell::before {
  content: attr(data-slot);
  position: absolute;
  top: -1px;
  left: -1px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.1);
  border-radius: 5px 0 6px 0;
  letter-spacing: 1px;
  pointer-events: none;
  text-transform: none;
}
.abt-builder-wrap .abt-el-two-col-cell[data-slot="left"]::before { content: "← 左"; }
.abt-builder-wrap .abt-el-two-col-cell[data-slot="right"]::before { content: "右 →"; }

/* —— 属性弹窗（替代右侧固定面板） —— */
.abt-builder-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: abt-modal-fade-in .18s ease;
}
@keyframes abt-modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
.abt-builder-modal {
  background: var(--card);
  border-radius: 12px;
  width: 480px;
  max-width: 92vw;
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  animation: abt-modal-pop .2s ease;
  overflow: hidden;
}
@keyframes abt-modal-pop {
  from { transform: scale(.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.abt-builder-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.abt-builder-modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.abt-builder-modal-close {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-muted, #888);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s;
}
.abt-builder-modal-close:hover {
  background: rgba(0,0,0,0.06);
  color: var(--text);
}
.abt-builder-modal-body {
  padding: 16px 18px;
  overflow-y: auto;
  flex: 1;
}
.abt-builder-modal-foot {
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.abt-builder-modal-foot-btn {
  padding: 7px 18px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  transition: all .15s;
}
.abt-builder-modal-foot-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.abt-builder-modal-foot-btn.is-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.abt-builder-modal-foot-btn.is-primary:hover {
  opacity: .9;
}

/* —— 字段表单（弹窗内 + 复用给其他地方） —— */
.abt-builder-field {
  margin-bottom: 12px;
}
.abt-builder-field-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 5px;
}
.abt-builder-field-input,
.abt-builder-field-textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color .15s, box-shadow .15s;
}
.abt-builder-field-input:focus,
.abt-builder-field-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(var(--primary-rgb,65,105,225), 0.15);
}
.abt-builder-field-textarea {
  resize: vertical;
  min-height: 70px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

/* Repeater（列表型字段） */
.abt-builder-repeater {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  background: var(--bg);
}
.abt-builder-repeater-row {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 8px;
  padding: 6px;
  border: 1px solid transparent;
  border-radius: 5px;
  transition: border-color .15s, background .15s;
  flex-wrap: wrap;
}
.abt-builder-repeater-row:hover {
  border-color: var(--border);
  background: var(--card);
}
.abt-builder-repeater-row input,
.abt-builder-repeater-row textarea {
  flex: 1;
  min-width: 120px;
}
.abt-builder-repeater-row textarea {
  min-height: 36px;
}
.abt-builder-repeater-del {
  border: none;
  background: transparent;
  color: #dc3545;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1;
  flex-shrink: 0;
  opacity: .5;
  transition: opacity .15s, background .15s;
}
.abt-builder-repeater-del:hover {
  opacity: 1;
  background: rgba(220,53,69,0.15);
}
.abt-builder-repeater-add {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px;
  border: 1px dashed var(--border);
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  width: 100%;
  margin-top: 4px;
  font-family: inherit;
  transition: border-color .15s, background .15s;
}
.abt-builder-repeater-add:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb,65,105,225), 0.06);
}

/* sec-hidden-soft：visibility 隐藏但保留占位，切换回来不重建 DOM */
.sec-hidden-soft {
  display: none !important;
}

/* —— 响应式：窄屏堆叠 —— */
@media (max-width: 960px) {
  .abt-builder-wrap {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .abt-builder-sidebar {
    min-height: auto;
  }
  .abt-builder-canvas {
    min-height: 350px;
  }
  .abt-builder-canvas.is-horizontal .abt-builder-comp {
    width: 100%;
  }
  .abt-builder-modal {
    width: 100%;
    max-height: 90vh;
    border-radius: 0;
  }
}