html,
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  color: #0b1220;
}

/* 嵌入站点页头/页脚时的纵向布局 */
body.bke-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(1200px 600px at 20% -10%, #eef3ff 0%, transparent 60%),
    radial-gradient(1200px 600px at 90% 0%, #f3efff 0%, transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
}

.bke-editor-wrap {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-height: min(640px, 70vh);
}

.bke-editor-wrap .eApp {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
}

/* 独立打开 editor.html（无 .bke-page）时仍占满视口 */
body:not(.bke-page) {
  height: 100%;
  overflow: hidden;
  background: radial-gradient(1200px 600px at 20% -10%, #eef3ff 0%, transparent 60%),
    radial-gradient(1200px 600px at 90% 0%, #f3efff 0%, transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
}
body:not(.bke-page) .eApp {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
}

/* 学段 / 学科 / 学年 + 我的资源（bke.html） */
.bke-school-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: center;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}
.bke-school-filter label {
  font-size: 12px;
  color: #334155;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.bke-school-filter select {
  min-width: 128px;
  max-width: 200px;
  padding: 6px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 12px;
  background: #fff;
}

/* 左侧栏：筛选 + 资源列表（bke.html） */
.bke-left-resources {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.72);
}
.bke-school-filter.bke-school-filter--left {
  flex: 0 0 auto;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.bke-school-filter--left .bke-school-filter-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.bke-school-filter--left .bke-school-filter-row label {
  font-size: 11px;
  color: #334155;
}
.bke-school-filter--left select {
  width: 100%;
  min-width: 0;
  max-width: none;
}

/* 备课目录（bk_bkinfo / bk_bkandzy / bk_pptinfo） */
.bke-beike-bar {
  flex: 0 0 auto;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  background: rgba(255, 255, 255, 0.9);
}
.bke-beike-bar-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}
.bke-beike-bar-row label {
  font-size: 11px;
  color: #334155;
}
.bke-beike-bar select#bke-bk-select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 12px;
  background: #fff;
}
.bke-beike-bar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-start;
}

.bke-res-row-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.bke-res-row-wrap .bke-res-row {
  flex: 1;
  min-width: 0;
}
.bke-res-row-wrap .bke-btn-add-beike {
  flex-shrink: 0;
  padding: 4px 8px;
  font-size: 10px;
  white-space: nowrap;
}
.bke-res-row-wrap--ppt {
  align-items: stretch;
}
.bke-res-row-wrap--ppt .bke-res-ppt-link {
  flex: 1;
  min-width: 0;
  display: block;
}
.bke-res-row-wrap--ppt .bke-btn-add-beike {
  align-self: center;
}

.bke-my-resources {
  max-height: 240px;
  overflow-y: auto;
  padding: 10px 14px;
  background: rgba(248, 250, 252, 0.96);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}
.bke-my-resources.bke-my-resources--left {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  padding: 8px 10px;
  border-bottom: none;
  background: rgba(248, 250, 252, 0.92);
}

/* 左侧纵向列表：先图片再 PPT */
.bke-res-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bke-res-section {
  min-width: 0;
}
.bke-res-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bke-res-li {
  margin: 0;
  padding: 0;
}
.bke-res-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: #fff;
  text-decoration: none;
  color: #0f172a;
  font-size: 11px;
  line-height: 1.3;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.bke-res-row:hover {
  border-color: #93c5fd;
  background: #f8fafc;
}
.bke-res-row-thumb {
  width: 44px;
  height: 33px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
  flex-shrink: 0;
  background: #f1f5f9;
}
.bke-res-row-text {
  flex: 1;
  min-width: 0;
  word-break: break-word;
  color: #2563eb;
}
.bke-res-list--ppt .bke-res-ppt-link {
  display: block;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: #fff;
  font-size: 11px;
  line-height: 1.35;
  text-decoration: none;
  color: #2563eb;
  word-break: break-word;
}
.bke-res-list--ppt .bke-res-ppt-link:hover {
  border-color: #93c5fd;
  background: #f8fafc;
}
.bke-res-list--ppt .bke-res-ppt-id {
  color: #64748b;
  margin-right: 6px;
  font-variant-numeric: tabular-nums;
}

.bke-res-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 960px) {
  .bke-res-grid {
    grid-template-columns: 1fr;
  }
}
.bke-res-col-title {
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
}
.bke-res-empty {
  font-size: 12px;
  color: #64748b;
  padding: 8px 0;
}
.bke-res-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.bke-res-item {
  width: 76px;
  font-size: 10px;
  text-align: center;
}
.bke-res-item img {
  width: 72px;
  height: 54px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
  display: block;
  margin: 0 auto;
  background: #f1f5f9;
}
.bke-res-item a {
  display: block;
  margin-top: 4px;
  color: #2563eb;
  word-break: break-all;
  line-height: 1.2;
  max-height: 2.4em;
  overflow: hidden;
}
.bke-res-ppt-item {
  font-size: 11px;
  padding: 6px 8px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  margin-bottom: 6px;
}
.bke-res-ppt-item .bke-res-ppt-id {
  color: #64748b;
  margin-right: 6px;
}

.bke-ppt-import-viewer {
  position: fixed;
  left: -12000px;
  top: 0;
  width: 960px;
  min-height: 540px;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  opacity: 0.02;
}

.eTop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
}

.eH1 {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.eSub {
  margin-top: 2px;
  font-size: 12px;
  color: rgba(2, 6, 23, 0.65);
}

.eTopActions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.eMain {
  display: grid;
  grid-template-columns: minmax(260px, 300px) 1fr 320px;
  gap: 12px;
  padding: 12px 12px 18px;
  min-height: 0;
  overflow: hidden;
}

/* bke.html：仅左侧备课资源，无画布/页面/属性 */
.eMain.eMain--bke-resources-only {
  grid-template-columns: minmax(280px, 440px);
  justify-content: center;
  max-width: 520px;
  margin-inline: auto;
  overflow: visible;
}
.eMain.eMain--bke-resources-only .eLeft.eLeft--bke {
  grid-template-rows: 1fr;
  min-height: min(72vh, 720px);
}

/* bke.html：仅「筛选 + 我的资源」单栏；主区贴视口左侧（不居中收窄） */
.eMain.eMain--bke-with-resources {
  grid-template-columns: 1fr;
  max-width: none;
  width: 100%;
  margin-inline: 0;
  justify-content: stretch;
  padding-left: 0;
  box-sizing: border-box;
}
.eMain.eMain--bke-with-resources .eLeft.eLeft--bke {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}
/* 左栏：窄列放「学段/学科/学年/备课」贴左侧；右侧为页面 + 资源列表 */
.eLeft.eLeft--bke-split {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  grid-template-rows: unset;
  min-height: 0;
  overflow: hidden;
  gap: 0;
}
.eLeft--bke-split .bke-filter-column {
  flex: 0 0 260px;
  width: 260px;
  min-width: 220px;
  max-width: 300px;
  overflow: auto;
  border-right: 1px solid rgba(15, 23, 42, 0.1);
  background: rgba(255, 255, 255, 0.92);
  display: flex;
  flex-direction: column;
}
.eLeft--bke-split .bke-split-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: min(72vh, 800px);
}
.eLeft--bke-split .bke-my-resources {
  flex: 1 1 auto;
  min-height: 140px;
  overflow: auto;
  border-bottom: none;
  width: 100%;
  box-sizing: border-box;
}
/* 资源列表横向铺满眼 「页面」下的右侧区域 */
.eLeft--bke-split .bke-res-stack,
.eLeft--bke-split .bke-res-section,
.eLeft--bke-split .bke-res-list,
.eLeft--bke-split .bke-res-li {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
.eLeft--bke-split .bke-res-row-wrap,
.eLeft--bke-split .bke-res-row-wrap--ppt {
  width: 100%;
  max-width: 100%;
}
.eLeft--bke-split .bke-res-row {
  width: 100%;
  box-sizing: border-box;
}
.eLeft--bke-split .bke-res-list--ppt .bke-res-ppt-link {
  width: 100%;
  box-sizing: border-box;
}

.eLeft,
.eRight,
.eStage {
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.75);
  overflow: hidden;
  min-height: 0;
  display: grid;
  grid-template-rows: auto auto 1fr;
}

/* bke：左栏仅「筛选 + 备课 + 资源列表」（页面/画布已移除时由 eMain--bke-resources-only 覆盖行高） */
.eLeft.eLeft--bke {
  grid-template-rows: 1fr;
}

.eStage {
  grid-template-rows: auto auto 1fr auto;
}

.ePanelTitle {
  padding: 10px 12px;
  font-weight: 700;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  text-align: center;
}

.eLeftTools,
.eStageTools {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.55);
  justify-content: center;
  flex-wrap: wrap;
}

.eBtn,
.eLinkBtn {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.eBtn.small {
  padding: 7px 10px;
  font-size: 12px;
}
.eBtn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.eBtn.danger {
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(254, 242, 242, 0.9);
}

.eFileBtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  user-select: none;
  font-size: 12px;
}
.eFileBtn input {
  display: none;
}

.eHidden {
  display: none;
}

.eSlideList {
  overflow: auto;
  padding: 10px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.eSlideCard {
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.85);
  padding: 10px;
  cursor: pointer;
  display: grid;
  gap: 8px;
}
.eSlideCard.active {
  border-color: rgba(99, 102, 241, 0.9);
  box-shadow: 0 10px 26px rgba(99, 102, 241, 0.18);
}
.eSlideCardTitle {
  font-weight: 800;
  font-size: 12px;
  color: rgba(2, 6, 23, 0.8);
}
.eSlideThumb {
  height: 110px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.10);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06), rgba(15, 23, 42, 0.02));
  position: relative;
  overflow: hidden;
}

.eCanvasWrap {
  padding: 12px;
  overflow: auto;
  min-height: 0;
  display: grid;
  place-items: center;
}

.eCanvas {
  width: 960px;
  height: 540px;
  background: white;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.14);
  box-shadow: 0 20px 70px rgba(15, 23, 42, 0.12);
  position: relative;
  overflow: hidden;
}

.eHint {
  padding: 10px 12px;
  font-size: 12px;
  color: rgba(2, 6, 23, 0.65);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.55);
}

.eObj {
  position: absolute;
  user-select: none;
  touch-action: none;
}

.eObj img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  pointer-events: none;
}

.eObj.selected {
  outline: 2px solid rgba(99, 102, 241, 0.95);
  outline-offset: 0;
}

.eHandle {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: rgba(99, 102, 241, 1);
  position: absolute;
  right: -5px;
  bottom: -5px;
  cursor: nwse-resize;
}

.eProps {
  overflow: auto;
  padding: 12px;
  min-height: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}

.ePropGroup {
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.85);
  padding: 10px 12px;
  display: grid;
  gap: 10px;
}

.ePropTitle {
  font-weight: 800;
  font-size: 12px;
  color: rgba(2, 6, 23, 0.75);
}

.ePropRow {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
  align-items: center;
}
.ePropLabel {
  font-size: 12px;
  color: rgba(2, 6, 23, 0.72);
}
.ePropValue {
  font-size: 12px;
  color: rgba(2, 6, 23, 0.78);
}
.eInput {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: rgba(255, 255, 255, 0.95);
}
.eCheck {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: rgba(2, 6, 23, 0.78);
}

@media (max-width: 1080px) {
  .eMain {
    grid-template-columns: 240px 1fr;
  }
  .eMain.eMain--bke-resources-only {
    grid-template-columns: 1fr;
    max-width: none;
    margin-inline: 0;
  }
  .eMain.eMain--bke-with-resources {
    grid-template-columns: 1fr;
  }
  .eLeft.eLeft--bke-split {
    flex-direction: column;
  }
  .eLeft--bke-split .bke-filter-column {
    flex: 0 0 auto;
    width: 100%;
    max-width: none;
    min-width: 0;
    border-right: none;
    border-bottom: 1px solid rgba(15, 23, 42, 0.1);
  }
  .eMain:not(.eMain--bke-with-resources) .eRight {
    display: none;
  }
}