/* 顶栏 */
.lg-top{
  position:sticky;
  top:0;
  z-index:20;
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
  padding:0 40px;
  background:rgba(255,252,245,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s
}
.lg-top.lg-scrolled{
  border-bottom-color:var(--line)
}
.lg-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px
}
.lg-brand svg{
  width:30px;
  height:30px
}
.lg-top .sp{
  flex:1
}
.lg-top a.link{
  color:var(--muted);
  font-size:14px;
  text-decoration:none
}
.lg-top a.link:hover{
  color:var(--ink)
}
.lg-btn-y:hover{
  background:var(--y2);
  box-shadow:0 6px 18px rgba(255,194,61,.35)
}
/* 标题 */
.lg-hero{
  text-align:center;
  padding:64px 20px 28px
}
.lg-hero h1{
  font-size:46px;
  line-height:1.2;
  margin:0 0 14px;
  letter-spacing:-1px;
  font-weight:800
}
.lg-hero h1 .lg-hl{
  position:relative;
  white-space:nowrap
}
.lg-hero h1 .lg-hl::after{
  content:"";
  position:absolute;
  left:-4px;
  right:-4px;
  bottom:4px;
  height:16px;
  background:var(--y);
  z-index:-1;
  border-radius:4px;
  transform:scaleX(0);
  transform-origin:left;
  animation:lg-hl .7s .6s cubic-bezier(.2,.8,.2,1) forwards
}
@keyframes lg-hl{
  to{
    transform:scaleX(1)
  }
}
.lg-hero p{
  color:var(--muted);
  font-size:17px;
  margin:0
}
.lg-rise{
  opacity:0;
  transform:translateY(16px);
  animation:lg-rise .7s cubic-bezier(.2,.8,.2,1) forwards
}
@keyframes lg-rise{
  to{
    opacity:1;
    transform:none
  }
}
/* 对话区 */
.lg-stage{
  max-width:1040px;
  margin:0 auto;
  padding:0 20px
}
.lg-chat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
  overflow:hidden
}
.lg-msgs{
  min-height:120px;
  padding:26px 28px 22px;
  display:flex;
  flex-direction:column;
  gap:18px
}
.lg-empty{
  color:var(--faint);
  font-size:14px;
  text-align:center;
  padding:30px 0 10px
}
.lg-u{
  align-self:flex-end;
  display:flex;
  gap:10px;
  align-items:flex-end;
  max-width:72%;
  animation:lg-rise .45s cubic-bezier(.2,.8,.2,1) both
}
.lg-u .lg-bubble{
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:16px 16px 4px 16px;
  padding:12px 14px;
  font-size:14px;
  line-height:1.6
}
.lg-u img{
  width:56px;
  height:56px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid var(--line)
}
.lg-a{
  display:flex;
  gap:12px;
  align-items:flex-start;
  animation:lg-rise .45s cubic-bezier(.2,.8,.2,1) both
}
.lg-a .lg-av{
  flex:none;
  width:32px;
  height:32px
}
.lg-a .lg-body{
  flex:1;
  min-width:0
}
/* 流程：左边五步，右边当前这一步的画面 */
.lg-flow{
  display:grid;
  grid-template-columns:210px 1fr;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:var(--bg)
}
.lg-rail{
  padding:16px 14px;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:4px
}
.lg-st{
  display:flex;
  gap:10px;
  padding:8px 8px;
  border-radius:10px;
  transition:background .3s
}
.lg-st .lg-dot{
  flex:none;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1.5px solid var(--line2);
  display:grid;
  place-items:center;
  font-size:11px;
  color:var(--faint);
  background:var(--surface);
  transition:all .3s
}
.lg-st .lg-tx{
  font-size:13px;
  color:var(--faint);
  transition:color .3s;
  line-height:22px
}
.lg-st .lg-sm{
  display:block;
  font-size:11.5px;
  line-height:1.45;
  color:var(--muted);
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .4s,opacity .4s
}
.lg-st.lg-on{
  background:var(--surface)
}
.lg-st.lg-on .lg-tx{
  color:var(--ink);
  font-weight:600
}
.lg-st.lg-on .lg-dot{
  border-color:var(--y2);
  box-shadow:0 0 0 4px rgba(255,194,61,.22);
  color:var(--ink)
}
.lg-st.lg-ok .lg-tx{
  color:var(--ink)
}
.lg-st.lg-ok .lg-dot{
  background:var(--y);
  border-color:var(--y);
  color:var(--ink)
}
.lg-st.lg-ok .lg-sm{
  max-height:60px;
  opacity:1
}
.lg-pane{
  position:relative;
  min-height:340px;
  padding:20px 22px;
  background:var(--surface)
}
.lg-scene{
  position:absolute;
  inset:20px 22px;
  opacity:0;
  transform:translateY(8px);
  transition:opacity .35s,transform .35s;
  pointer-events:none
}
.lg-scene.lg-show{
  opacity:1;
  transform:none;
  pointer-events:auto
}
.lg-cap{
  font-size:12px;
  color:var(--faint);
  letter-spacing:.5px;
  margin-bottom:12px
}
/* 1 卖点 */
.lg-s1{
  display:flex;
  gap:22px;
  align-items:flex-start
}
.lg-prod{
  position:relative;
  width:230px;
  height:230px;
  border-radius:14px;
  overflow:hidden;
  flex:none;
  background:var(--bg2)
}
.lg-prod img{
  width:100%;
  height:100%;
  object-fit:cover
}
.lg-prod .lg-box{
  position:absolute;
  border:2px solid var(--y2);
  border-radius:8px;
  opacity:0;
  transform:scale(1.15);
  transition:.4s
}
.lg-prod .lg-box.lg-in{
  opacity:1;
  transform:none
}
.lg-prod .lg-sweep{
  position:absolute;
  left:0;
  right:0;
  height:40%;
  top:-40%;
  background:linear-gradient(transparent,rgba(255,214,107,.45),transparent)
}
.lg-s1.lg-go .lg-sweep{
  animation:lg-sweep 1.1s ease-in-out
}
@keyframes lg-sweep{
  to{
    top:100%
  }
}
.lg-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-content:flex-start;
  padding-top:4px
}
.lg-tag{
  font-size:13px;
  padding:7px 12px;
  border-radius:999px;
  background:var(--bg2);
  border:1px solid var(--line);
  opacity:0;
  transform:translateY(6px) scale(.95);
  transition:.35s cubic-bezier(.2,.9,.3,1.3)
}
.lg-tag.lg-in{
  opacity:1;
  transform:none
}
.lg-tag b{
  color:var(--y2);
  margin-right:4px
}
/* 2 模特 */
.lg-models{
  display:flex;
  gap:14px
}
.lg-md{
  width:120px;
  text-align:center;
  font-size:12px;
  color:var(--muted);
  transition:transform .3s
}
.lg-md .lg-ph{
  width:120px;
  height:160px;
  border-radius:14px;
  overflow:hidden;
  background:var(--bg2);
  border:2px solid transparent;
  transition:border-color .3s,box-shadow .3s;
  position:relative
}
.lg-md .lg-ph img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:top
}
.lg-md .lg-ph svg{
  position:absolute;
  inset:0;
  margin:auto;
  width:70px;
  height:110px;
  fill:var(--line2)
}
.lg-md.lg-pick{
  transform:translateY(-6px)
}
.lg-md.lg-pick .lg-ph{
  border-color:var(--y2);
  box-shadow:0 10px 24px rgba(255,194,61,.3)
}
.lg-md.lg-dim{
  opacity:.45
}
.lg-md p{
  margin:8px 0 0
}
.lg-skip{
  display:flex;
  align-items:center;
  gap:12px;
  padding:16px;
  border-radius:12px;
  background:var(--bg2);
  font-size:14px;
  color:var(--muted)
}
/* 3 文案 */
.lg-copy{
  display:flex;
  gap:22px
}
.lg-mini{
  position:relative;
  width:200px;
  height:260px;
  border-radius:14px;
  overflow:hidden;
  flex:none;
  background:var(--bg2)
}
.lg-mini img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.85)
}
.lg-mini .lg-t1{
  position:absolute;
  left:14px;
  right:14px;
  top:16px;
  font-size:20px;
  font-weight:800;
  color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.6)
}
.lg-mini .lg-t2{
  position:absolute;
  left:14px;
  top:50px;
  font-size:12px;
  background:var(--y);
  padding:3px 8px;
  border-radius:5px;
  opacity:0;
  transition:.3s
}
.lg-mini .lg-t2.lg-in{
  opacity:1
}
.lg-lines{
  flex:1;
  display:flex;
  flex-direction:column;
  gap:12px
}
.lg-ln{
  font-size:12px;
  color:var(--faint)
}
.lg-ln div{
  margin-top:5px;
  font-size:15px;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:10px;
  padding:10px 12px;
  min-height:42px;
  background:var(--bg)
}
.lg-caret::after{
  content:"";
  display:inline-block;
  width:2px;
  height:1em;
  background:var(--ink);
  vertical-align:-2px;
  margin-left:2px;
  animation:lg-blink .8s steps(1) infinite
}
@keyframes lg-blink{
  50%{
    opacity:0
  }
}
/* 4 提示词 */
.lg-prompt{
  font-size:13.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;
  padding:14px 16px;
  min-height:200px
}
.lg-prompt mark{
  background:rgba(255,214,107,.5);
  color:inherit;
  border-radius:3px;
  padding:0 2px
}
.lg-uses{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  margin-top:12px
}
.lg-uses span{
  font-size:11.5px;
  color:var(--muted);
  border:1px dashed var(--line2);
  border-radius:6px;
  padding:3px 8px
}
/* 5 出图 */
.lg-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px
}
.lg-tile{
  position:relative;
  aspect-ratio:3/4;
  border-radius:12px;
  overflow:hidden;
  background:var(--bg2)
}
.lg-tile::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(110deg,transparent 30%,rgba(255,214,107,.35) 50%,transparent 70%);
  background-size:200% 100%;
  animation:lg-shim 1.2s linear infinite
}
@keyframes lg-shim{
  from{
    background-position:150% 0
  }
  to{
    background-position:-50% 0
  }
}
.lg-tile img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:blur(18px) saturate(.6);
  transform:scale(1.08);
  opacity:0;
  transition:filter 1.1s cubic-bezier(.2,.8,.2,1),transform 1.1s cubic-bezier(.2,.8,.2,1),opacity .4s
}
.lg-tile .lg-hd{
  position:absolute;
  left:10px;
  right:10px;
  top:10px;
  z-index:2;
  font-size:14px;
  font-weight:800;
  opacity:0;
  transition:opacity .6s .6s;
  text-shadow:0 1px 0 rgba(255,255,255,.7)
}
.lg-tile.lg-done::before{
  display:none
}
.lg-tile.lg-done img{
  filter:none;
  transform:none;
  opacity:1
}
.lg-tile.lg-done .lg-hd{
  opacity:1
}
.lg-tile .lg-scan{
  position:absolute;
  z-index:2;
  left:0;
  right:0;
  height:2px;
  background:var(--y2);
  box-shadow:0 0 12px var(--y2);
  top:0;
  opacity:0
}
.lg-tile.lg-done .lg-scan{
  animation:lg-scan 1s ease-out forwards
}
@keyframes lg-scan{
  0%{
    top:0;
    opacity:1
  }
  100%{
    top:100%;
    opacity:0
  }
}
.lg-after{
  margin-top:16px;
  display:flex;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--muted);
  animation:lg-rise .5s both
}
.lg-after .btn{
  padding:9px 16px
}
.lg-presets{
  border-top:1px solid var(--line);
  background:linear-gradient(var(--bg),var(--surface));
  padding:16px 20px 20px
}
.lg-presets .lg-lbl{
  font-size:12px;
  color:var(--faint);
  margin:0 0 10px 6px;
  letter-spacing:.5px
}
.lg-plist{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px
}
.lg-p{
  display:flex;
  gap:10px;
  align-items:center;
  text-align:left;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  padding:8px 12px 8px 8px;
  cursor:pointer;
  font-family:inherit;
  font-size:13px;
  color:var(--ink);
  line-height:1.45;
  transition:border-color .2s,transform .2s,box-shadow .2s
}
.lg-p:hover{
  border-color:var(--y2);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(120,90,20,.08)
}
.lg-p.lg-cur{
  border-color:var(--ink)
}
.lg-p img{
  flex:none;
  width:44px;
  height:44px;
  object-fit:cover;
  border-radius:9px
}
.lg-p[disabled]{
  opacity:.5;
  cursor:wait;
  transform:none
}
/* 范例墙 */
.lg-wall-h{
  max-width:1240px;
  margin:64px auto 18px;
  padding:0 40px;
  display:flex;
  align-items:baseline;
  gap:12px
}
.lg-wall-h h2{
  margin:0;
  font-size:22px
}
.lg-wall-h span{
  color:var(--muted);
  font-size:14px
}
.lg-wall{
  max-width:1240px;
  margin:0 auto 80px;
  padding:0 40px;
  columns:4;
  column-gap:14px
}
.lg-w{
  display:inline-block;
  padding:0;
  border:0;
  background:none;
  color:inherit;
  font:inherit;
  text-align:left;
  appearance:none;
  width:100%;
  vertical-align:top;
  break-inside:avoid;
  margin-bottom:14px;
  position:relative;
  border-radius:14px;
  overflow:hidden;
  cursor:pointer;
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s,transform .7s cubic-bezier(.2,.8,.2,1)
}
.lg-w.lg-in{
  opacity:1;
  transform:none
}
.lg-w img{
  display:block;
  width:100%;
  transition:transform .6s cubic-bezier(.2,.8,.2,1)
}
.lg-w:hover img{
  transform:scale(1.04)
}
.lg-w .lg-ov{
  position:absolute;
  inset:auto 0 0 0;
  padding:40px 14px 12px;
  background:linear-gradient(transparent,rgba(26,26,26,.75));
  color:#fff;
  font-size:13px;
  line-height:1.5;
  opacity:0;
  transform:translateY(8px);
  transition:.3s
}
.lg-w:hover .lg-ov{
  opacity:1;
  transform:none
}
.lg-w .lg-ov b{
  display:inline-block;
  margin-top:8px;
  background:var(--y);
  color:var(--ink);
  font-size:12px;
  padding:4px 10px;
  border-radius:6px
}
.lg-brand {
  color:var(--ink);
  text-decoration:none;
}
.lg-brand img {
  width:30px;
  height:30px;
}
.lg-btn-y {
  background:var(--y);
  color:var(--ink);
}
.lg-btn-y:hover {
  background:var(--y2);
  box-shadow:0 6px 18px rgba(255,194,61,.35);
}
.lg-hero h1 {
  animation-delay:.05s;
  isolation:isolate;
}
.lg-hero p {
  animation-delay:.2s;
}
.lg-stage {
  animation-delay:.35s;
}
.modal.narrow.lg-login {
  position:relative;
  width:400px;
  padding:32px 32px 26px;
  overflow:auto;
}
.lg-login > .icon-btn {
  position:absolute;
  right:16px;
  top:16px;
}
.lg-logo {
  width:40px;
  height:40px;
}
.lg-login h3 {
  margin:14px 0 4px;
  font-size:22px;
}
.lg-login .sub {
  color:var(--muted);
  font-size:13px;
  margin:0 0 20px;
}
.lg-login label {
  display:block;
  font-size:13px;
  margin:12px 0 6px;
  color:var(--muted);
}
.lg-login .input {
  width:100%;
  height:42px;
  background:var(--bg);
}
.lg-login .input:focus {
  background:var(--surface);
}
.lg-login .btn-block {
  width:100%;
  margin-top:20px;
  padding:12px;
}
.lg-login .err {
  color:var(--bad);
  font-size:12.5px;
  margin:10px 0 -8px;
}
.lg-foot {
  font-size:12px;
  color:var(--faint);
  text-align:center;
  margin-top:14px;
}

/* 演示卖点框的位置；用示例序号和框序号代替内联样式。 */
.lg-a[data-demo="0"] .lg-box:nth-of-type(1){left:18%;top:30%;width:40%;height:30%}
.lg-a[data-demo="0"] .lg-box:nth-of-type(2){left:52%;top:46%;width:22%;height:22%}
.lg-a[data-demo="1"] .lg-box:nth-of-type(1){left:20%;top:24%;width:60%;height:40%}
.lg-a[data-demo="2"] .lg-box:nth-of-type(1){left:10%;top:30%;width:80%;height:36%}
.lg-a[data-demo="3"] .lg-box:nth-of-type(1){left:14%;top:22%;width:70%;height:44%}
.lg-a[data-demo="3"] .lg-box:nth-of-type(2){left:30%;top:64%;width:50%;height:20%}
.lg-p:nth-child(1){animation-delay:.5s}
.lg-p:nth-child(2){animation-delay:.58s}
.lg-p:nth-child(3){animation-delay:.66s}
.lg-p:nth-child(4){animation-delay:.74s}
.lg-w:nth-child(4n+1){transition-delay:0s}
.lg-w:nth-child(4n+2){transition-delay:.08s}
.lg-w:nth-child(4n+3){transition-delay:.16s}
.lg-w:nth-child(4n+4){transition-delay:.24s}