:root{
  --longi-bg:#070b10;
  --longi-panel:#0b1119;
  --longi-line:rgba(255,255,255,.18);
  --longi-text:#f2f6fb;
  --longi-muted:rgba(242,246,251,.74);
  --longi-red:#ef1a23;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--longi-bg);color:var(--longi-text)}
body{
  font-family:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  letter-spacing:0;
}

.longi-page{min-height:100vh}

.longi-nav{
  position:fixed;
  left:0;
  right:0;
  top:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 34px;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.longi-brand{
  width:94px;
  display:block;
}

.longi-brand img{display:block;width:100%;height:auto}

.longi-nav nav{display:flex;gap:30px}
.longi-nav a{
  color:var(--longi-text);
  text-decoration:none;
  font-family:"PingFang SC","Source Han Sans K","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1;
  opacity:.94;
}

.longi-nav a.is-active{
  opacity:1;
  padding-bottom:4px;
  border-bottom:1px solid rgba(255,255,255,.88);
}

.longi-main{padding-bottom:72px}

.longi-hero{
  padding:92px 0 30px;
}

.longi-hero__frame{
  width:min(96vw,1720px);
  margin:0 auto;
  aspect-ratio:16/9;
  background:#000;
  position:relative;
  overflow:hidden;
}

.longi-hero video{
  width:100%;
  height:100%;
  display:block;
  object-fit:contain;
}

.longi-controls{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  width:min(38vw,510px);
  color:#fff;
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease;
  mix-blend-mode:difference;
}

.longi-hero__frame:hover .longi-controls,
.longi-hero__frame:focus-within .longi-controls,
.longi-hero__frame.is-controls-visible .longi-controls{
  opacity:1;
  pointer-events:auto;
}

.longi-progress{
  width:100%;
  height:2px;
  background:rgba(255,255,255,.32);
  cursor:pointer;
}

.longi-progress__bar{
  width:0;
  height:100%;
  background:#fff;
}

.longi-controls__meta{
  margin-top:10px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12px;
  text-transform:uppercase;
  line-height:1;
}

.longi-actions{display:flex;gap:14px}

.longi-btn{
  border:0;
  background:transparent;
  color:inherit;
  font:inherit;
  padding:0;
  cursor:pointer;
}

.longi-story{
  width:min(96vw,1720px);
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(300px,1fr) minmax(440px,1fr);
  gap:clamp(36px,4vw,58px);
  padding:38px 0 24px;
}

.longi-meta-wrap{
  width:100%;
}

.longi-meta-logo{
  display:block;
  width:min(280px,84%);
  height:auto;
  margin:0 0 22px;
}

.longi-meta{
  width:100%;
  font-family:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.4;
}

.longi-meta__row{
  min-height:clamp(52px,4.5vw,68px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  border-bottom:1px solid rgba(255,255,255,.28);
}

.longi-meta__row:last-child{border-bottom:0}

.longi-meta__label{
  font-size:clamp(14px,.95vw,18px);
  color:#fff;
  font-weight:500;
}

.longi-meta__value{
  font-size:clamp(14px,.95vw,18px);
  font-weight:500;
  text-align:right;
  white-space:nowrap;
}

.longi-copy p{margin:0 0 26px}
.longi-copy p:last-child{margin-bottom:0}

.longi-copy__head{
  display:block;
  margin-bottom:8px;
  font-size:clamp(16px,1.15vw,21px);
  font-weight:700;
  line-height:1.45;
}

.longi-copy__body{
  display:block;
  color:#fff;
  font-size:clamp(13px,.9vw,16px);
  line-height:1.92;
  font-family:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

.longi-section{
  width:min(96vw,1720px);
  margin:0 auto;
  padding-top:34px;
}

.longi-kicker{
  margin:0 0 16px;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--longi-muted);
}

.longi-motion-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:16px;
}

.longi-motion-item{
  background:#000;
  border:1px solid rgba(255,255,255,.1);
  overflow:hidden;
}

.longi-motion-item img{
  display:block;
  width:100%;
  height:auto;
}

.longi-span-12{grid-column:span 12}
.longi-span-6{grid-column:span 6}

.longi-posters{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:16px;
  padding-bottom:20px;
}

.longi-poster{
  grid-column:span 4;
  border:1px solid rgba(255,255,255,.1);
  overflow:hidden;
  background:#000;
}

.longi-poster--hero{grid-column:span 12}
.longi-poster--tall{grid-column:span 6}
.longi-poster--wide{grid-column:span 6}

.longi-poster img{
  display:block;
  width:100%;
  height:auto;
}

.longi-foot{
  width:min(96vw,1720px);
  margin:18px auto 0;
  display:flex;
  justify-content:flex-end;
  padding-bottom:48px;
}

.longi-foot img{
  width:136px;
  height:auto;
  opacity:.96;
}

@media (max-width:1024px){
  .longi-nav{padding:16px 20px}
  .longi-nav nav{gap:16px}
  .longi-nav a{font-size:13px}
  .longi-story{
    grid-template-columns:1fr;
    gap:26px;
  }
  .longi-controls{
    width:min(66vw,300px);
    top:50%;
  }
  .longi-controls__meta{
    margin-top:8px;
    font-size:11px;
  }
  .longi-actions{gap:12px}
  .longi-copy__head{font-size:16px}
  .longi-copy__body{font-size:13px;line-height:1.86}
  .longi-poster{grid-column:span 6}
  .longi-poster--hero{grid-column:span 12}
}

@media (max-width:760px){
  .longi-hero{padding:84px 0 18px}
  .longi-hero__frame{width:min(94vw,620px)}
  .longi-story,.longi-section,.longi-foot{width:min(94vw,620px)}
  .longi-meta__row{min-height:56px}
  .longi-meta-logo{
    width:min(220px,72%);
    margin-bottom:16px;
  }
  .longi-motion-item,.longi-poster,.longi-poster--hero,.longi-poster--tall,.longi-poster--wide,.longi-span-6,.longi-span-12{grid-column:span 12}
  .longi-copy__head{font-size:16px}
}

.solar-key-visual{
  margin:0;
  background:#000;
  overflow:hidden;
}

.solar-key-visual img{
  display:block;
  width:100%;
  height:auto;
}

.solar-motion-grid .longi-motion-item{
  border-color:rgba(255,255,255,.08);
}

.solar-page .longi-motion-item,
.solar-page .longi-poster{
  background:transparent;
  border:0;
}

.solar-mixed-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  grid-auto-flow:dense;
  grid-auto-rows:8px;
  align-items:start;
  gap:8px;
  padding-bottom:22px;
}

.solar-mixed-item{
  margin:0;
  overflow:hidden;
  background:transparent;
}

.solar-mixed-item img{
  display:block;
  width:100%;
  height:auto;
}

.mix-wide-a,.mix-wide-b,.mix-wide-c{grid-column:span 12;margin-top:0;}
.mix-gif-a,.mix-gif-b,.mix-gif-c,.mix-gif-d{grid-column:span 6;margin-top:0;}
.mix-vert-a,.mix-vert-b,.mix-vert-c,.mix-vert-d{grid-column:span 6;margin-top:0;}
.mix-poster-a,.mix-poster-b,.mix-poster-c,.mix-poster-d{grid-column:span 6;margin-top:0;}
.mix-square-a,.mix-square-b,.mix-square-c,.mix-square-d{grid-column:span 6;margin-top:0;}
.mix-copy-a,.mix-copy-b{grid-column:span 6;}
.mix-copy-a{grid-row:span 38;}
.mix-copy-b{grid-row:span 30;}

.solar-copy-card{
  margin:0;
  min-height:100%;
  padding:clamp(22px,2.2vw,34px);
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  background:transparent;
  border:0;
}

.solar-copy-card__en{
  margin:0 0 10px;
  color:#fff;
  font-size:clamp(34px,3.4vw,60px);
  line-height:1.06;
  font-weight:600;
  letter-spacing:.01em;
}

.solar-copy-card__zh{
  margin:0;
  color:rgba(255,255,255,.95);
  font-size:clamp(26px,2.2vw,40px);
  line-height:1.4;
  font-weight:550;
}

.solar-copy-card__zh--single{
  font-size:clamp(32px,2.8vw,50px);
  line-height:1.3;
}

.solar-motion-grid .solar-motion-a{grid-column:span 7;}
.solar-motion-grid .solar-motion-b{grid-column:span 5;margin-top:36px;}
.solar-motion-grid .solar-motion-c{grid-column:span 5;margin-top:-24px;}
.solar-motion-grid .solar-motion-d{grid-column:span 7;margin-top:42px;}

.solar-page .longi-hero{
  padding:92px 0 28px;
}

.solar-page .longi-story,
.solar-page .longi-section,
.solar-page .longi-foot{
  width:min(96vw,1720px);
}

.solar-page .longi-story{
  padding:24px 0 14px;
}

.solar-page .longi-copy{
  padding-top:clamp(116px,8vw,168px);
}

.solar-page .longi-section{
  padding-top:30px;
}

.solar-page .longi-kicker{
  margin-bottom:10px;
}

.solar-page .solar-motion-grid{
  gap:12px;
}

.solar-page .solar-posters{
  gap:12px;
  padding-bottom:22px;
}

.solar-posters .longi-poster--portrait{
  grid-column:span 4;
}

.solar-posters .solar-wide-intro{grid-column:span 12;}
.solar-posters .solar-v-main{grid-column:span 5;}
.solar-posters .solar-v-shift-a{grid-column:span 4;margin-top:38px;}
.solar-posters .solar-v-main-b{grid-column:span 3;}
.solar-posters .solar-v-shift-b{grid-column:span 4;margin-top:22px;}

.solar-posters .solar-p-one{grid-column:span 4;margin-top:8px;}
.solar-posters .solar-p-two{grid-column:span 4;margin-top:-8px;}
.solar-posters .solar-p-three{grid-column:span 4;margin-top:16px;}
.solar-posters .solar-p-four{grid-column:span 4;margin-top:-8px;}

.solar-posters .solar-sq-one{grid-column:span 4;margin-top:12px;}
.solar-posters .solar-sq-two{grid-column:span 4;margin-top:-8px;}
.solar-posters .solar-sq-three{grid-column:span 4;margin-top:16px;}
.solar-posters .solar-sq-four{grid-column:span 4;margin-top:6px;}

.solar-posters .solar-wide-outro-a{grid-column:span 7;margin-top:16px;}
.solar-posters .solar-wide-outro-b{grid-column:span 5;margin-top:42px;}

.solar-posters .longi-poster--wide img{
  width:100%;
  height:auto;
}

/* Subtle overlap accents for desktop only */
@media (min-width:1025px){
  .solar-page .solar-motion-b{margin-left:-10px;}
  .solar-page .solar-motion-c{margin-right:-10px;}

  .solar-page .solar-v-shift-a{transform:translateX(-10px);}
  .solar-page .solar-v-shift-b{transform:translateX(8px);}

  .solar-page .solar-p-two{transform:translateY(-8px);}
  .solar-page .solar-p-three{transform:translateY(6px);}

  .solar-page .solar-sq-two{transform:translateX(-8px);}
  .solar-page .solar-sq-four{transform:translateX(8px);}

  .solar-page .solar-wide-outro-b{margin-left:-12px;}
}

@media (max-width:1024px){
  .solar-page .longi-hero{
    padding:88px 0 22px;
  }

  .solar-page .longi-story,
  .solar-page .longi-section,
  .solar-page .longi-foot{
    width:min(96vw,980px);
  }

  .solar-page .longi-copy{
    padding-top:24px;
  }

  .solar-page .solar-motion-grid{
    gap:10px;
  }

  .solar-page .solar-posters{
    gap:10px;
    padding-bottom:18px;
  }

  .solar-mixed-grid{
    gap:10px;
    padding-bottom:18px;
  }

  .mix-wide-a,
  .mix-wide-b,
  .mix-wide-c{
    grid-column:span 12;
    margin-top:0;
  }

  .mix-gif-a,
  .mix-gif-b,
  .mix-gif-c,
  .mix-gif-d,
  .mix-copy-a,
  .mix-copy-b,
  .mix-vert-a,
  .mix-vert-b,
  .mix-vert-c,
  .mix-vert-d,
  .mix-poster-a,
  .mix-poster-b,
  .mix-poster-c,
  .mix-poster-d,
  .mix-square-a,
  .mix-square-b,
  .mix-square-c,
  .mix-square-d{
    grid-column:span 6;
    margin-top:0;
  }

  .mix-copy-a,
  .mix-copy-b{
    grid-row:auto;
    min-height:280px;
  }

  .solar-motion-grid .solar-motion-a,
  .solar-motion-grid .solar-motion-b,
  .solar-motion-grid .solar-motion-c,
  .solar-motion-grid .solar-motion-d{
    grid-column:span 6;
    margin-top:0;
  }

  .solar-posters .longi-poster--portrait{
    grid-column:span 6;
  }

  .solar-posters .solar-v-main,
  .solar-posters .solar-v-shift-a,
  .solar-posters .solar-v-main-b,
  .solar-posters .solar-v-shift-b,
  .solar-posters .solar-p-one,
  .solar-posters .solar-p-two,
  .solar-posters .solar-p-three,
  .solar-posters .solar-p-four,
  .solar-posters .solar-sq-one,
  .solar-posters .solar-sq-two,
  .solar-posters .solar-sq-three,
  .solar-posters .solar-sq-four{
    grid-column:span 6;
    margin-top:0;
  }

  .solar-posters .solar-wide-outro-a,
  .solar-posters .solar-wide-outro-b{
    grid-column:span 12;
    margin-top:0;
  }

  .solar-page .solar-v-shift-a,
  .solar-page .solar-v-shift-b,
  .solar-page .solar-p-two,
  .solar-page .solar-p-three,
  .solar-page .solar-sq-two,
  .solar-page .solar-sq-four{
    transform:none;
  }

  .solar-posters .longi-poster--wide{
    grid-column:span 6;
  }
}

@media (max-width:760px){
  .solar-page .longi-hero{
    padding:82px 0 16px;
  }

  .solar-page .longi-section{
    padding-top:24px;
  }

  .solar-page .longi-copy{
    padding-top:12px;
  }

  .solar-mixed-grid{
    gap:8px;
    padding-bottom:14px;
  }

  .mix-wide-a,
  .mix-wide-b,
  .mix-wide-c,
  .mix-gif-a,
  .mix-gif-b,
  .mix-gif-c,
  .mix-gif-d,
  .mix-copy-a,
  .mix-copy-b,
  .mix-vert-a,
  .mix-vert-b,
  .mix-vert-c,
  .mix-vert-d,
  .mix-poster-a,
  .mix-poster-b,
  .mix-poster-c,
  .mix-poster-d,
  .mix-square-a,
  .mix-square-b,
  .mix-square-c,
  .mix-square-d{
    grid-column:span 12;
    margin-top:0;
  }

  .mix-copy-a,
  .mix-copy-b{
    min-height:220px;
    padding:18px;
  }

  .solar-posters .longi-poster--wide{
    grid-column:span 12;
  }

  .solar-posters .longi-poster--portrait{
    grid-column:span 12;
  }

  .solar-posters .solar-v-main,
  .solar-posters .solar-v-shift-a,
  .solar-posters .solar-v-main-b,
  .solar-posters .solar-v-shift-b,
  .solar-posters .solar-p-one,
  .solar-posters .solar-p-two,
  .solar-posters .solar-p-three,
  .solar-posters .solar-p-four,
  .solar-posters .solar-sq-one,
  .solar-posters .solar-sq-two,
  .solar-posters .solar-sq-three,
  .solar-posters .solar-sq-four,
  .solar-posters .solar-wide-outro-a,
  .solar-posters .solar-wide-outro-b,
  .solar-motion-grid .solar-motion-a,
  .solar-motion-grid .solar-motion-b,
  .solar-motion-grid .solar-motion-c,
  .solar-motion-grid .solar-motion-d{
    grid-column:span 12;
    margin-top:0;
  }
}