*,
::after,
::before {
  box-sizing: border-box;
}
body,
ul,
p,
h1,
h2,
h3,
h4,
h5,
h6 {
  padding: 0;
  margin: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, PingFangSC-Regular, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 12px;
  color: #111111;
  background-color: var(--color0);
  font-weight: 300;
}
img {
  vertical-align: bottom;
}
ul {
  list-style-type: none;
}
a {
  color: #111111;
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
:root {
  --color0: #DEDEDE;
  --color-black: #111111;
  --color-white: #FBFBFB;
  --color1: #1E5EFF;
  --color2: #0CFD00;
  --color3: #FFED25;
  --color-secondary-text: #898989;
  --color5-secondary-green: #E1FCDF;
  --color6-secondary-blue: #80D0FF;
  --color7-selecting-blue: #5485FF;
  --color4: #FF40B9;
}
/* ===============================
   尺寸基准（按当前视觉定稿）
================================= */
/* Back 按钮 */
/* 白纸 */
.layout {
  width: 100%;
  max-width: 1040px;
  margin: 120px auto 0;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  box-sizing: border-box;
}
.sketchWrapper {
  width: 257px;
  flex-shrink: 0;
}
/* ===== expandedFolder 总体 ===== */
.expandedFolder {
  width: 257px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
/* ===== folder tabs ===== */
.folderTabs {
  width: 248px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}
.tab {
  width: 248px;
  position: relative;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.tabFill {
  fill: var(--color1) !important;
  transition: fill 0.2s ease;
}
.tab:hover {
  transform: translateY(-2px);
}
.tab:hover .tabFill {
  fill: var(--color7-selecting-blue) !important;
}
.tabStroke {
  fill: none !important;
  stroke: var(--color-white) !important;
  stroke-width: 0.801353px !important;
}
.tab + .tab {
  margin-top: -172px;
}
.tab svg {
  display: block;
  width: 248px;
  height: auto;
  overflow: visible;
}
.tab svg,
.tab g {
  filter: none !important;
  opacity: 1 !important;
}
.tabLabel {
  position: absolute;
  top: 4px;
  font-size: 9px;
  line-height: 1;
  color: var(--color-white);
  z-index: 2;
  white-space: nowrap;
}
.tab1 {
  z-index: 4;
}
.tab2 {
  z-index: 3;
}
.tab3 {
  z-index: 2;
}
.tab4 {
  z-index: 1;
}
.tab1 .tabLabel {
  left: 52px;
}
.tab2 .tabLabel {
  left: 96px;
}
.tab3 .tabLabel {
  left: 147px;
}
.tab4 .tabLabel {
  left: 166px;
}
/* ===== foldershow ===== */
.folderShow {
  width: 257px;
  height: 430px;
  margin-top: -171px;
  position: relative;
  z-index: 10;
}
.folderBackSvg {
  position: absolute;
  left: 50%;
  top: 0;
  width: 242px;
  transform: translateX(-50%);
}
.folderBackShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.folderFrontWrap {
  position: absolute;
  left: 50%;
  top: 14px;
  width: 242px;
  height: 181px;
  transform: translateX(-50%) scaleY(-1);
  transform-origin: bottom center;
  z-index: 14;
}
.folderFrontSvg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.folderFrontShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.paperPanel {
  position: absolute;
  left: 50%;
  top: 28px;
  width: 217px;
  height: 156px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.75);
  z-index: 15;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.textGroup {
  width: 100%;
  padding: 20px;
}
.textGroup h2 {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin: 12px 0;
  color: var(--color-black);
}
.textGroup p {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin-top: 24px;
  color: var(--color-black);
  text-align: center;
}
.previewImage {
  position: absolute;
  top: 8px;
  left: 24px;
  width: 44px;
  height: 44px;
  max-width: 44px;
  max-height: 44px;
  object-fit: contain;
  clip-path: inset(0);
  z-index: 16;
}
.backBtn {
  position: absolute;
  right: 20px;
  bottom: 110px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  font-size: 12px;
  line-height: 1;
  color: var(--color2);
  text-decoration: none;
  transform: scaleY(-1);
  transform-origin: center center;
  z-index: 17;
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1), opacity 0.18s ease;
}
.backBtn .iconfont {
  font-size: 12px;
  line-height: 1;
  color: currentColor;
}
.backBtn .backText {
  font-size: 12px;
  line-height: 1;
  color: currentColor;
}
.backBtn:hover {
  transform: scaleY(-1) translateX(-2px);
}
.backBtn:hover .iconfont {
  transform: translateX(-1px);
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.backBtn:active {
  transform: scaleY(-1) translateX(-1px);
  opacity: 0.88;
}
/* ===============================
   Right / projects
================================= */
.contentRight {
  flex: 1;
  min-width: 0;
  margin-left: 20px;
}
.projects {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  align-content: flex-start;
  gap: 20px 20px;
}
.projectCard {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 0 1 217px;
}
.projectImageWrap {
  position: relative;
  height: 155px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.projectCard img {
  height: 100%;
  width: auto;
  display: block;
  object-fit: contain;
}
/* hover 遮罩 */
.imageHoverOverlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.imageHoverOverlay .icon-fangda {
  font-size: 20px;
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.projectImageWrap:hover .imageHoverOverlay {
  background: rgba(0, 0, 0, 0.45);
}
.projectImageWrap:hover .imageHoverOverlay .icon-fangda {
  opacity: 1;
}
/* 灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.lightbox.is-visible {
  opacity: 1;
}
.lightboxContent {
  position: relative;
  display: inline-flex;
}
.lightboxContent img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  display: block;
}
.lightboxClose {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: url("../assets/cursor/cursor-pointer.svg") 6 2, pointer;
  padding: 0;
}
.lightboxClose .icon-guanbi {
  font-size: 18px;
  color: #fff;
}
.projectInfo {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.projectTitle {
  font-size: 12px;
  line-height: 18px;
  color: #111111;
}
.projectMeta {
  margin: 0;
  font-size: 12px;
  line-height: 12px;
  color: var(--color-secondary-text);
}
/* ===============================
   page enter transition
================================= */
html.labSketchbookEntering .expandedFolder {
  opacity: 1;
  transform: none;
}
html.labSketchbookEntering .contentRight {
  opacity: 0;
  transform: translateY(12px);
}
html.labSketchbookEntering.is-ready .expandedFolder {
  opacity: 1;
  transform: none;
  transition: none;
}
html.labSketchbookEntering.is-ready .contentRight {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.28s ease 0.08s, transform 0.28s ease 0.08s;
}
/* ===============================
   transition overlay
================================= */
body.isTransitioning .folderShow .paperPanel,
body.isTransitioning .folderShow .textGroup,
body.isTransitioning .folderShow .backBtn,
body.isTransitioning .folderTabs .tabLabel,
body.isTransitioning .contentRight {
  opacity: 0;
  pointer-events: none;
}
body.isTransitioning .folderShow .previewImage {
  opacity: 1;
}
.folderShow .paperPanel,
.folderShow .textGroup,
.folderShow .backBtn,
.folderShow .previewImage,
.folderTabs .tabLabel,
.contentRight {
  transition: none;
}
/* 默认刷新/正常进入时都应该是可见的 */
.folderShow .paperPanel,
.folderShow .textGroup,
.folderShow .backBtn {
  opacity: 1;
  pointer-events: auto;
}
/* 只有过渡时，才允许用 body class 临时控制 */
body.isTransitioning .folderShow .paperPanel {
  opacity: 0;
}
body.isTransitioning .folderShow .textGroup {
  opacity: 0;
  transform: translateY(8px);
}
body.isTransitioning .folderShow .backBtn {
  opacity: 0;
  transform: scaleY(-1) translateY(4px);
}
body.showPaper .folderShow .paperPanel {
  opacity: 1;
}
body.showText .folderShow .textGroup {
  opacity: 1;
  transform: translateY(0);
}
body.showBack .folderShow .backBtn {
  opacity: 1;
  transform: scaleY(-1) translateY(0);
}
.folderTabs .tabLabel,
.contentRight {
  opacity: 1;
}
.folderShow .paperPanel {
  transition: opacity 0.35s ease;
}
.folderShow .textGroup {
  transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.folderShow .backBtn {
  transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.folderShow .previewImage,
.folderTabs .tabLabel,
.contentRight {
  transition: none;
}
/* 最后阶段：真实页自己按顺序出现 */
body.showPaper .folderShow .paperPanel {
  opacity: 1;
}
body.showText .folderShow .textGroup {
  opacity: 1;
  transform: translateY(0);
}
body.showBack .folderShow .backBtn {
  opacity: 1;
}
#transitionOverlayRoot {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}
.labSketchTransitionOverlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 1;
}
.transitionStage {
  position: fixed;
  pointer-events: none;
}
.transitionSourceFolder {
  position: absolute;
  left: 0;
  top: 0;
  width: 257px;
  height: 430px;
  z-index: 10;
  transform-origin: top left;
  transition: transform 0.4s cubic-bezier(0.22, 0.8, 0.2, 1);
  will-change: transform;
}
.transitionTabs {
  z-index: 1;
}
.transitionSourceFolder {
  z-index: 10;
}
/* source folder */
.transitionBackSvg {
  position: absolute;
  left: 50%;
  top: 0;
  width: 242px;
  height: auto;
  transform: translateX(-50%);
  z-index: 10;
}
.transitionBackShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.transitionPapers {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 193px;
  height: 144px;
  transform: translateX(-50%) scale(1);
  transform-origin: top center;
  z-index: 12;
  transition: opacity 0.12s ease, transform 0.52s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.transitionPapers.is-hiding {
  opacity: 0;
}
.transitionPaperSheet {
  position: absolute;
  width: 180px;
  height: 130px;
  background: #FBFBFB;
  box-shadow: 0 3px 4px rgba(0, 0, 0, 0.16);
}
.transitionPaperSheet1 {
  left: 0;
  top: 0;
  transform: rotate(-2deg);
}
.transitionPaperSheet2 {
  left: 6px;
  top: 2px;
  transform: rotate(2deg);
}
.transitionPaperSheet3 {
  left: 3px;
  top: 4px;
  transform: rotate(1deg);
}
.transitionFrontWrap {
  position: absolute;
  left: 50%;
  top: 14px;
  width: 242px;
  height: 181px;
  transform: translateX(-50%);
  transform-origin: bottom center;
  z-index: 14;
  perspective: 900px;
}
.transitionFrontWrap.is-open .transitionFrontInner {
  transform: rotateX(-180deg);
}
.transitionFrontInner {
  position: absolute;
  inset: 0;
  transform-origin: bottom center;
  transform-style: preserve-3d;
  transition: transform 0.42s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.transitionFrontFace,
.transitionFrontBackFace {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.transitionFrontBackFace {
  transform: rotateX(180deg) scaleY(-1);
}
.transitionFrontSvg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.transitionFrontShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
/* svg tabs 从后面推出 */
.transitionTabs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.transitionTab {
  position: absolute;
  left: 50%;
  width: 248px;
  transform: translateX(-50%) translateY(8px) scaleY(0.9);
  transform-origin: bottom center;
  opacity: 0;
}
.transitionTab svg {
  display: block;
  width: 248px;
  height: auto;
}
.transitionTabFill {
  fill: var(--color1);
}
.transitionTabStroke {
  fill: none;
  stroke: var(--color-white);
  stroke-width: 0.801353px;
}
.transitionTab1 {
  top: 95px;
  z-index: 4;
}
.transitionTab2 {
  top: 63px;
  z-index: 3;
}
.transitionTab3 {
  top: 32px;
  z-index: 2;
}
.transitionTab4 {
  top: 0;
  z-index: 1;
}
.transitionTabs.is-visible .transitionTab {
  opacity: 1;
}
.transitionTabs.is-visible .transitionTab1 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.32s cubic-bezier(0.22, 0.8, 0.2, 1), opacity 0.18s ease;
}
.transitionTabs.is-visible .transitionTab2 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.34s cubic-bezier(0.22, 0.8, 0.2, 1) 0.03s, opacity 0.18s ease 0.03s;
}
.transitionTabs.is-visible .transitionTab3 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.36s cubic-bezier(0.22, 0.8, 0.2, 1) 0.06s, opacity 0.18s ease 0.06s;
}
.transitionTabs.is-visible .transitionTab4 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.38s cubic-bezier(0.22, 0.8, 0.2, 1) 0.09s, opacity 0.18s ease 0.09s;
}
/* final content */
.transitionPreview {
  position: absolute;
  width: 44px;
  height: 44px;
  background: center / contain no-repeat url("assets/icons/icon_sketch.png");
  z-index: 16;
  opacity: 1;
  transition: top 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), left 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), width 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), height 0.42s cubic-bezier(0.22, 0.8, 0.2, 1);
  background-size: cover;
  background-position: center;
}
.transitionPaperPanel {
  position: absolute;
  left: 50%;
  top: 28px;
  width: 217px;
  height: 156px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.75);
  z-index: 15;
  opacity: 0;
}
.transitionPaperPanel.is-visible {
  opacity: 1;
  transition: opacity 0.16s ease;
}
.transitionText {
  position: absolute;
  left: 50%;
  top: 28px;
  width: 217px;
  height: 156px;
  transform: translateX(-50%);
  padding: 20px;
  box-sizing: border-box;
  z-index: 16;
  opacity: 0;
}
.transitionText.is-visible {
  opacity: 1;
  transition: opacity 0.14s ease;
}
.transitionText h2 {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin: 0;
  color: var(--color-black);
}
.transitionText p {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin: 30px 0 0;
  color: var(--color-black);
  text-align: center;
}
.transitionBackBtn {
  position: absolute;
  right: 10px;
  bottom: 10px;
  color: var(--color2);
  opacity: 0;
  transform: translateY(4px);
}
.transitionBackBtn.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.24s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.contentRight {
  transition: opacity 0.24s ease, transform 0.24s ease;
}
body.isTransitioning .contentRight {
  opacity: 0;
  transform: translateY(8px);
}
body:not(.isTransitioning) .contentRight {
  opacity: 1;
  transform: translateY(0);
}
.is-hidden-during-transition .expandedFolder,
.is-hidden-during-transition .folderShow {
  opacity: 0;
}
.transitionPreview {
  position: absolute;
  transition: left 0.5s cubic-bezier(0.22, 1, 0.36, 1), top 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.18s ease;
  will-change: transform;
}
.expandedFolder.is-transition-hidden .folderTabs,
.expandedFolder.is-transition-hidden .folderShow {
  opacity: 0;
  pointer-events: none;
}
.folderTabs .tab {
  text-decoration: none;
  color: inherit;
}
.paperPanel .textGroup {
  text-align: left;
  align-items: flex-start;
}
.paperPanel .textGroup h2,
.paperPanel .textGroup p {
  text-align: left;
}
.contentBlock {
  display: flex;
  flex-direction: column;
  align-items: center;
}
@media (max-width: 768px) {
  .layout {
    padding: 0 16px;
    gap: 20px;
  }
  .contentRight {
    flex: 1;
    min-width: 0;
  }
  .projects {
    width: 100%;
  }
  .projectCard {
    width: 125%;
    transform: scale(0.8);
    transform-origin: top left;
    margin-bottom: -8%;
  }
  .projectImageWrap {
    height: 140px;
  }
  .projectInfo {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .projectTitle,
  .projectMeta {
    text-align: center;
  }
}
/* 过渡期间，禁用 page-enter 对 target folder 的缩放/位移干扰 */
body.isTransitioning html.labSketchbookEntering .expandedFolder,
html.labSketchbookEntering body.isTransitioning .expandedFolder {
  opacity: 1;
  transform: none;
}
body.isTransitioning html.labSketchbookEntering .contentRight,
html.labSketchbookEntering body.isTransitioning .contentRight {
  opacity: 1;
  transform: none;
}
/* ===============================
   Responsive - only adjust right content
   不动左边 folder / transition
================================= */
@media (max-width: 1200px) {
  .layout {
    gap: 36px;
  }
  .contentRight {
    flex: 1;
    min-width: 0;
  }
  .projects {
    width: 100%;
  }
  .projectCard {
    width: 100%;
  }
  .projectImageWrap {
    height: 140px;
  }
}
@media (max-width: 768px) {
  .layout {
    width: 100%;
    max-width: 1040px;
    margin: 120px auto 0;
    padding: 0 16px;
    gap: 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    box-sizing: border-box;
  }
  /* 左边按缩放后的视觉宽度 */
  .sketchWrapper {
    width: 175px;
    flex-shrink: 0;
  }
  .expandedFolder {
    width: 257px;
  }
  /* 右边填充剩余空间 */
  .contentRight {
    flex: 1;
    min-width: 0;
    max-width: none;
  }
  .projects {
    width: 100%;
  }
  .projectCard {
    width: 100%;
    margin-bottom: 16px;
  }
  .projectImageWrap {
    height: 112px;
  }
  .projectInfo {
    margin-top: 8px;
  }
  .projectTitle {
    font-size: 12px;
    line-height: 1.3;
  }
  .projectMeta {
    font-size: 11px;
    line-height: 1.3;
  }
}
@media (max-width: 640px) {
  .layout {
    gap: 12px;
    padding: 0 12px;
  }
  .contentRight {
    overflow: hidden;
  }
  .projectCard {
    margin-bottom: 14px;
  }
  .projectTitle {
    font-size: 11px;
  }
  .projectMeta {
    font-size: 10px;
  }
}
/* ===============================
   尺寸基准（按当前视觉定稿）
================================= */
/* Back 按钮 */
/* 白纸 */
/* ===============================
   Layout
   左右外边距都 20，中间稍微宽一点
   左边不动，只让右边适配
================================= */
.layout {
  width: 100%;
  max-width: 1040px;
  margin: 120px auto 0;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  box-sizing: border-box;
  gap: 32px;
  /* 中间稍微宽一点 */
}
.sketchWrapper {
  width: 257px;
  flex-shrink: 0;
}
/* ===== expandedFolder 总体 ===== */
.expandedFolder {
  width: 257px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
/* ===== folder tabs ===== */
.folderTabs {
  width: 248px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}
.tab {
  width: 248px;
  position: relative;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.tabFill {
  fill: var(--color1) !important;
  transition: fill 0.2s ease;
}
.tab:hover {
  transform: translateY(-2px);
}
.tab:hover .tabFill {
  fill: var(--color7-selecting-blue) !important;
}
.tabStroke {
  fill: none !important;
  stroke: var(--color-white) !important;
  stroke-width: 0.801353px !important;
}
.tab + .tab {
  margin-top: -172px;
}
.tab svg {
  display: block;
  width: 248px;
  height: auto;
  overflow: visible;
}
.tab svg,
.tab g {
  filter: none !important;
  opacity: 1 !important;
}
.tabLabel {
  position: absolute;
  top: 4px;
  font-size: 9px;
  line-height: 1;
  color: var(--color-white);
  z-index: 2;
  white-space: nowrap;
}
.tab1 {
  z-index: 4;
}
.tab2 {
  z-index: 3;
}
.tab3 {
  z-index: 2;
}
.tab4 {
  z-index: 1;
}
.tab1 .tabLabel {
  left: 52px;
}
.tab2 .tabLabel {
  left: 96px;
}
.tab3 .tabLabel {
  left: 147px;
}
.tab4 .tabLabel {
  left: 166px;
}
/* ===== foldershow ===== */
.folderShow {
  width: 257px;
  height: 430px;
  margin-top: -171px;
  position: relative;
  z-index: 10;
}
.folderBackSvg {
  position: absolute;
  left: 50%;
  top: 0;
  width: 242px;
  transform: translateX(-50%);
}
.folderBackShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.folderFrontWrap {
  position: absolute;
  left: 50%;
  top: 14px;
  width: 242px;
  height: 181px;
  transform: translateX(-50%) scaleY(-1);
  transform-origin: bottom center;
  z-index: 14;
}
.folderFrontSvg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.folderFrontShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.paperPanel {
  position: absolute;
  left: 50%;
  top: 28px;
  width: 217px;
  height: 156px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.75);
  z-index: 15;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.textGroup {
  width: 100%;
  padding: 20px;
}
.textGroup h2 {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin: 12px 0;
  color: var(--color-black);
}
.textGroup p {
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  margin-top: 24px;
  color: var(--color-black);
  text-align: center;
}
.previewImage {
  position: absolute;
  top: 8px;
  left: 24px;
  width: 44px;
  height: 44px;
  max-width: 44px;
  max-height: 44px;
  object-fit: contain;
  clip-path: inset(0);
  z-index: 16;
}
.backBtn {
  position: absolute;
  right: 20px;
  bottom: 110px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  font-size: 12px;
  line-height: 1;
  color: var(--color2);
  text-decoration: none;
  transform: scaleY(-1);
  transform-origin: center center;
  z-index: 17;
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1), opacity 0.18s ease;
}
.backBtn .iconfont {
  font-size: 12px;
  line-height: 1;
  color: currentColor;
}
.backBtn .backText {
  font-size: 12px;
  line-height: 1;
  color: currentColor;
}
.backBtn:hover {
  transform: scaleY(-1) translateX(-2px);
}
.backBtn:hover .iconfont {
  transform: translateX(-1px);
  transition: transform 0.18s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.backBtn:active {
  transform: scaleY(-1) translateX(-1px);
  opacity: 0.88;
}
/* ===============================
   Right / projects
   只调整右边，不动左边
================================= */
.contentRight {
  flex: 1;
  min-width: 0;
}
.projects {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  align-content: flex-start;
  gap: 20px 20px;
}
.projectCard {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 0 1 217px;
}
.projectImageWrap {
  position: relative;
  height: 155px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.projectCard img {
  height: 100%;
  width: auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 3px 4px rgba(0, 0, 0, 0.16));
}
.projectInfo {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.projectTitle {
  font-size: 12px;
  line-height: 18px;
  color: #111111;
}
.projectMeta {
  margin: 0;
  font-size: 12px;
  line-height: 12px;
  color: var(--color-secondary-text);
}
/* ===============================
   page enter transition
   左边不做进入动画，避免 target 自己再动一次
================================= */
html.labSketchbookEntering .expandedFolder {
  opacity: 1;
  transform: none;
}
html.labSketchbookEntering .contentRight {
  opacity: 0;
  transform: translateY(12px);
}
html.labSketchbookEntering.is-ready .expandedFolder {
  opacity: 1;
  transform: none;
  transition: none;
}
html.labSketchbookEntering.is-ready .contentRight {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.28s ease 0.08s, transform 0.28s ease 0.08s;
}
/* ===============================
   transition overlay
================================= */
body.isTransitioning .folderShow .paperPanel,
body.isTransitioning .folderShow .textGroup,
body.isTransitioning .folderShow .backBtn,
body.isTransitioning .folderTabs .tabLabel,
body.isTransitioning .contentRight {
  opacity: 0;
  pointer-events: none;
}
body.isTransitioning .folderShow .previewImage {
  opacity: 1;
}
.folderShow .paperPanel,
.folderShow .textGroup,
.folderShow .backBtn,
.folderShow .previewImage,
.folderTabs .tabLabel,
.contentRight {
  transition: none;
}
.folderShow .paperPanel,
.folderShow .textGroup,
.folderShow .backBtn {
  opacity: 1;
  pointer-events: auto;
}
body.isTransitioning .folderShow .paperPanel {
  opacity: 0;
}
body.isTransitioning .folderShow .textGroup {
  opacity: 0;
  transform: translateY(8px);
}
body.isTransitioning .folderShow .backBtn {
  opacity: 0;
  transform: scaleY(-1) translateY(4px);
}
body.showPaper .folderShow .paperPanel {
  opacity: 1;
}
body.showText .folderShow .textGroup {
  opacity: 1;
  transform: translateY(0);
}
body.showBack .folderShow .backBtn {
  opacity: 1;
  transform: scaleY(-1) translateY(0);
}
.folderTabs .tabLabel,
.contentRight {
  opacity: 1;
}
.folderShow .paperPanel {
  transition: opacity 0.35s ease;
}
.folderShow .textGroup {
  transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1), transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.folderShow .backBtn {
  transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.folderShow .previewImage,
.folderTabs .tabLabel,
.contentRight {
  transition: none;
}
body.showPaper .folderShow .paperPanel {
  opacity: 1;
}
body.showText .folderShow .textGroup {
  opacity: 1;
  transform: translateY(0);
}
body.showBack .folderShow .backBtn {
  opacity: 1;
}
#transitionOverlayRoot {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}
.labSketchTransitionOverlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 1;
}
.transitionStage {
  position: fixed;
  pointer-events: none;
}
.transitionSourceFolder {
  position: absolute;
  left: 0;
  top: 0;
  width: 257px;
  height: 430px;
  z-index: 10;
  transform-origin: top left;
  transition: transform 0.4s cubic-bezier(0.22, 0.8, 0.2, 1);
  will-change: transform;
}
.transitionTabs {
  z-index: 1;
}
.transitionSourceFolder {
  z-index: 10;
}
.transitionBackSvg {
  position: absolute;
  left: 50%;
  top: 0;
  width: 242px;
  height: auto;
  transform: translateX(-50%);
  z-index: 10;
}
.transitionBackShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.transitionPapers {
  position: absolute;
  left: 50%;
  top: 4px;
  width: 193px;
  height: 144px;
  transform: translateX(-50%) scale(1);
  transform-origin: top center;
  z-index: 12;
  transition: opacity 0.12s ease, transform 0.52s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.transitionPapers.is-hiding {
  opacity: 0;
}
.transitionPaperSheet {
  position: absolute;
  width: 180px;
  height: 130px;
  background: #FBFBFB;
  box-shadow: 0 3px 4px rgba(0, 0, 0, 0.16);
}
.transitionPaperSheet1 {
  left: 0;
  top: 0;
  transform: rotate(-2deg);
}
.transitionPaperSheet2 {
  left: 6px;
  top: 2px;
  transform: rotate(2deg);
}
.transitionPaperSheet3 {
  left: 3px;
  top: 4px;
  transform: rotate(1deg);
}
.transitionFrontWrap {
  position: absolute;
  left: 50%;
  top: 14px;
  width: 242px;
  height: 181px;
  transform: translateX(-50%);
  transform-origin: bottom center;
  z-index: 14;
  perspective: 900px;
}
.transitionFrontWrap.is-open .transitionFrontInner {
  transform: rotateX(-180deg);
}
.transitionFrontInner {
  position: absolute;
  inset: 0;
  transform-origin: bottom center;
  transform-style: preserve-3d;
  transition: transform 0.42s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.transitionFrontFace,
.transitionFrontBackFace {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.transitionFrontBackFace {
  transform: rotateX(180deg) scaleY(-1);
}
.transitionFrontSvg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.transitionFrontShape {
  fill: var(--color1);
  stroke: var(--color-white);
}
.transitionTabs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.transitionTab {
  position: absolute;
  left: 50%;
  width: 248px;
  transform: translateX(-50%) translateY(8px) scaleY(0.9);
  transform-origin: bottom center;
  opacity: 0;
}
.transitionTab svg {
  display: block;
  width: 248px;
  height: auto;
}
.transitionTabFill {
  fill: var(--color1);
}
.transitionTabStroke {
  fill: none;
  stroke: var(--color-white);
  stroke-width: 0.801353px;
}
.transitionTab1 {
  top: 95px;
  z-index: 4;
}
.transitionTab2 {
  top: 63px;
  z-index: 3;
}
.transitionTab3 {
  top: 32px;
  z-index: 2;
}
.transitionTab4 {
  top: 0;
  z-index: 1;
}
.transitionTabs.is-visible .transitionTab {
  opacity: 1;
}
.transitionTabs.is-visible .transitionTab1 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.32s cubic-bezier(0.22, 0.8, 0.2, 1), opacity 0.18s ease;
}
.transitionTabs.is-visible .transitionTab2 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.34s cubic-bezier(0.22, 0.8, 0.2, 1) 0.03s, opacity 0.18s ease 0.03s;
}
.transitionTabs.is-visible .transitionTab3 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.36s cubic-bezier(0.22, 0.8, 0.2, 1) 0.06s, opacity 0.18s ease 0.06s;
}
.transitionTabs.is-visible .transitionTab4 {
  transform: translateX(-50%) translateY(0) scaleY(1);
  transition: transform 0.38s cubic-bezier(0.22, 0.8, 0.2, 1) 0.09s, opacity 0.18s ease 0.09s;
}
.transitionPreview {
  position: absolute;
  width: 44px;
  height: 44px;
  background: center / contain no-repeat url("assets/icons/icon_sketch.png");
  z-index: 16;
  opacity: 1;
  transition: top 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), left 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), width 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), height 0.42s cubic-bezier(0.22, 0.8, 0.2, 1), opacity 0.18s ease;
}
/* ===============================
   Responsive
   只调右边
================================= */
@media (max-width: 1200px) {
  .layout {
    padding: 0 20px;
    gap: 28px;
  }
  .contentRight {
    flex: 1;
    min-width: 0;
  }
  .projects {
    gap: 16px 16px;
  }
  .projectCard {
    flex: 0 1 190px;
  }
  .projectImageWrap {
    height: 140px;
  }
}
@media (max-width: 900px) {
  .layout {
    padding: 0 20px;
    gap: 24px;
  }
  .projects {
    gap: 14px 14px;
  }
  .projectCard {
    flex: 0 1 170px;
  }
  .projectImageWrap {
    height: 128px;
  }
  .projectTitle {
    font-size: 11px;
    line-height: 16px;
  }
  .projectMeta {
    font-size: 11px;
    line-height: 11px;
  }
}
@media (max-width: 768px) {
  .layout {
    padding: 0 20px;
    gap: 20px;
  }
  .contentRight {
    flex: 1;
    min-width: 0;
  }
  .projects {
    gap: 12px 12px;
  }
  .projectCard {
    flex: 0 1 148px;
  }
  .projectImageWrap {
    height: 112px;
  }
  .projectInfo {
    margin-top: 8px;
  }
  .projectTitle {
    font-size: 11px;
    line-height: 14px;
  }
  .projectMeta {
    font-size: 10px;
    line-height: 10px;
  }
}