/* Product pages */
.product-iframe-page{
  --product-iframe-crop-top:72px;
  --product-iframe-crop-bottom:420px;
  --product-iframe-content-height:12000px;
  background:#000;
  overflow:auto;
}
.product-iframe-main{
  padding-top:var(--nav-h-scrolled);
  min-height:calc(100vh - var(--nav-h-scrolled));
  background:#000;
}
.product-iframe-viewport{
  width:100%;
  height:calc(var(--product-iframe-content-height) - var(--product-iframe-crop-top) - var(--product-iframe-crop-bottom));
  min-height:720px;
  overflow:hidden;
  background:#000;
}
.product-iframe{
  display:block;
  width:100%;
  height:var(--product-iframe-content-height);
  min-height:calc(720px + var(--product-iframe-crop-top) + var(--product-iframe-crop-bottom));
  border:0;
  background:#000;
  transform:translateY(calc(var(--product-iframe-crop-top) * -1));
}

.product-d5-iframe-page{
  background:#ffffff;
  overflow:hidden;
}
.product-d5-iframe-main{
  padding-top:0;
  min-height:100vh;
  background:#000;
}
.product-d5-iframe{
  display:block;
  width:100%;
  height:calc(100vh + 70px);
  margin-top:-70px;
  border:0;
  background:#000;
}

.product-8s-page{
  background:#080a0d;
}
.eight-s-detail{
  background:#080a0d;
  color:#fff;
  overflow:hidden;
}
.eight-s-section{
  position:relative;
  width:100%;
  background:#080a0d;
  overflow:hidden;
}
.eight-s-bg{
  display:block;
  width:100%;
  height:auto;
  user-select:none;
}
.eight-s-copy{
  position:absolute;
  z-index:2;
  top:90px;
  left:50%;
  width:min(900px, calc(100% - 48px));
  transform:translateX(-50%);
  text-align:center;
  color:#fff;
  pointer-events:none;
}
.eight-s-copy-left{
  top:250px;
  left:18.8%;
  width:min(520px, 42vw);
  transform:none;
  text-align:left;
}
.eight-s-copy h1,
.eight-s-copy h2{
  margin:0;
  color:#fff;
  font-weight:600;
  letter-spacing:0;
}
.eight-s-copy h1{
  font-size:clamp(34px, 3.1vw, 58px);
  line-height:1.18;
}
.eight-s-copy h2{
  font-size:clamp(24px, 2.15vw, 40px);
  line-height:1.25;
}
.eight-s-copy p{
  margin:16px auto 0;
  max-width:1000px;
  color:rgba(255,255,255,0.76);
  font-size:clamp(13px, 1.02vw, 18px);
  line-height:1.7;
  font-weight:400;
}
.eight-s-copy-left p{
  margin-left:0;
  max-width:560px;
}
.eight-s-layer-row{
  position:absolute;
  z-index:1;
  left:50%;
  top:42%;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:28px;
  width:min(1180px, calc(100% - 64px));
  transform:translateX(-50%);
  pointer-events:none;
}
.eight-s-layer-row img{
  display:block;
  max-width:100%;
  height:auto;
  object-fit:contain;
  opacity:0;
  transform:translateY(70px) scale(0.94);
  filter:blur(10px);
  transition:
    opacity 1100ms cubic-bezier(.16,.8,.2,1),
    transform 1100ms cubic-bezier(.16,.8,.2,1),
    filter 1100ms cubic-bezier(.16,.8,.2,1);
}
.eight-s-layer-row.is-visible img{
  opacity:1;
  transform:translateY(0) scale(1);
  filter:blur(0);
}
.eight-s-layer-row.is-visible img:nth-child(2){
  transition-delay:90ms;
}
.eight-s-layer-row.is-visible img:nth-child(3){
  transition-delay:180ms;
}
.eight-s-layer-row.is-visible img:nth-child(4){
  transition-delay:270ms;
}
.eight-s-layer-row-single{
  top:38%;
}
.eight-s-layer-row-single img{
  width:min(585px, 42vw);
}
.eight-s-section-5 .eight-s-layer-row{
  top:42%;
}
.eight-s-section-5 .eight-s-layer-row img{
  width:min(900px, 62vw);
}
.eight-s-layer-row-three{
  top:52%;
  gap:24px;
}
.eight-s-layer-row-three img{
  width:min(378px, 25vw);
}
.eight-s-layer-row-four{
  top:48%;
  gap:18px;
}
.eight-s-layer-row-four img{
  width:min(280px, 19vw);
}
.eight-s-section-8 .eight-s-layer-row{
  top:50%;
}
.eight-s-section-8 .eight-s-layer-row img{
  width:min(960px, 68vw);
}
.eight-s-section-9 .eight-s-copy,
.eight-s-section-10 .eight-s-copy,
.eight-s-section-11 .eight-s-copy{
  top:80px;
}
@media (max-width:900px){
  .eight-s-copy{
    top:42px;
    width:calc(100% - 32px);
  }
  .eight-s-copy-left{
    top:72px;
    left:9%;
    width:58vw;
  }
  .eight-s-copy h1{
    font-size:28px;
  }
  .eight-s-copy h2{
    font-size:21px;
  }
  .eight-s-copy p{
    margin-top:8px;
    font-size:12px;
    line-height:1.55;
  }
  .eight-s-layer-row{
    width:calc(100% - 32px);
    gap:10px;
  }
  .eight-s-layer-row-three img{
    width:30%;
  }
  .eight-s-layer-row-four img{
    width:23%;
  }
}
@media (max-width:600px){
  .eight-s-section{
    min-height:360px;
  }
  .eight-s-bg{
    width:100%;
    height:100%;
    min-height:360px;
    object-fit:cover;
    object-position:center;
  }
  .eight-s-section-1 .eight-s-bg{
    object-position:62% center;
  }
  .eight-s-copy,
  .eight-s-section-9 .eight-s-copy,
  .eight-s-section-10 .eight-s-copy,
  .eight-s-section-11 .eight-s-copy{
    top:32px;
  }
  .eight-s-copy-left{
    top:76px;
    left:24px;
    width:calc(100% - 48px);
  }
  .eight-s-copy h1{
    font-size:25px;
  }
  .eight-s-copy h2{
    font-size:20px;
  }
  .eight-s-copy p{
    max-width:320px;
  }
  .eight-s-layer-row{
    top:48%;
  }
  .eight-s-layer-row-single img,
  .eight-s-section-5 .eight-s-layer-row img,
  .eight-s-section-8 .eight-s-layer-row img{
    width:min(86vw, 520px);
  }
}
@media (prefers-reduced-motion:reduce){
  .eight-s-layer-row img{
    opacity:1;
    transform:none;
    filter:none;
    transition:none;
  }
}

.product-privatebox-page{
  background:#080a0d;
}
.privatebox-detail{
  background:#080a0d;
  color:#fff;
  overflow:hidden;
}
.privatebox-section{
  position:relative;
  width:100%;
  background:#080a0d;
  overflow:hidden;
}
.privatebox-bg{
  display:block;
  width:100%;
  height:auto;
  user-select:none;
}
.privatebox-copy{
  position:absolute;
  z-index:2;
  top:90px;
  left:50%;
  width:min(980px, calc(100% - 48px));
  transform:translateX(-50%);
  text-align:center;
  color:#fff;
  pointer-events:none;
}
.privatebox-copy-left{
  top:200px;
  left:18.8%;
  width:min(590px, 44vw);
  transform:none;
  text-align:left;
}
.privatebox-copy h1,
.privatebox-copy h2{
  margin:0;
  color:#fff;
  font-weight:600;
  letter-spacing:0;
}
.privatebox-copy h1{
  font-size:clamp(36px, 3.55vw, 66px);
  line-height:1.18;
}
.privatebox-copy h2{
  font-size:clamp(26px, 2.35vw, 44px);
  line-height:1.25;
}
.privatebox-copy p{
  margin:16px auto 0;
  max-width:960px;
  color:rgba(255,255,255,0.76);
  font-size:clamp(13px, 1.02vw, 18px);
  line-height:1.72;
  font-weight:400;
}
.privatebox-copy-left p{
  margin-left:0;
  max-width:620px;
}
.privatebox-hero-label{
  position:relative;
  width:min(894px, 48vw);
  margin-top:42px;
  color:rgba(255,255,255,0.9);
}
.privatebox-hero-label img{
  display:block;
  width:100%;
  height:auto;
  user-select:none;
}
.privatebox-hero-label p{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  margin:0;
  max-width:none;
  padding:0 38px;
  color:rgba(255,255,255,0.88);
  font-size:clamp(13px, 0.94vw, 17px);
  line-height:1.78;
  text-align:left;
}
.privatebox-hero-label p span{
  display:inline;
  max-width:100%;
  border-right:2px solid rgba(255,255,255,0.88);
  animation:privateboxCaret 780ms steps(1, end) infinite;
}
.privatebox-hero-label p span.typewriter-done{
  border-right:0;
  animation:none;
}
.privatebox-layer-row{
  position:absolute;
  z-index:1;
  left:50%;
  top:48%;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:28px;
  width:min(1180px, calc(100% - 64px));
  transform:translateX(-50%);
  pointer-events:none;
}
.privatebox-layer-row img{
  display:block;
  max-width:100%;
  height:auto;
  object-fit:contain;
  opacity:0;
  transform:translateY(70px) scale(0.94);
  filter:blur(10px);
  transition:
    opacity 1100ms cubic-bezier(.16,.8,.2,1),
    transform 1100ms cubic-bezier(.16,.8,.2,1),
    filter 1100ms cubic-bezier(.16,.8,.2,1);
}
.privatebox-layer-row.is-visible img{
  opacity:1;
  transform:translateY(0) scale(1);
  filter:blur(0);
}
.privatebox-layer-row.is-visible img:nth-child(2){
  transition-delay:90ms;
}
.privatebox-layer-row.is-visible img:nth-child(3){
  transition-delay:180ms;
}
.privatebox-layer-row.is-visible img:nth-child(4){
  transition-delay:270ms;
}
.privatebox-layer-row-single{
  top:32%;
}
.privatebox-layer-row-single img{
  width:min(722px, 46vw);
}
.privatebox-section-3 .privatebox-layer-row{
  top:40%;
}
.privatebox-section-3 .privatebox-layer-row img{
  width:min(860px, 60vw);
}
.privatebox-section-4 .privatebox-layer-row{
  top:30%;
}
.privatebox-section-4 .privatebox-layer-row img{
  width:min(900px, 62vw);
}
.privatebox-section-5 .privatebox-layer-row{
  top:35%;
}
.privatebox-section-5 .privatebox-layer-row img{
  width:min(828px, 58vw);
}
.privatebox-section-7 .privatebox-copy{
  top:90px;
}
@keyframes privateboxCaret{
  0%, 46%{border-color:rgba(255,255,255,0.88);}
  47%, 100%{border-color:transparent;}
}
@media (max-width:900px){
  .privatebox-copy{
    top:52px;
    width:calc(100% - 32px);
  }
  .privatebox-copy-left{
    top:82px;
    left:8%;
    width:58vw;
  }
  .privatebox-hero-label{
    width:min(620px, 74vw);
    margin-top:24px;
  }
  .privatebox-hero-label p{
    padding:0 24px;
    font-size:12px;
    line-height:1.55;
  }
  .privatebox-hero-label p span{
    border-right:0;
    animation:none;
  }
  .privatebox-copy h1{
    font-size:30px;
  }
  .privatebox-copy h2{
    font-size:22px;
  }
  .privatebox-copy p{
    margin-top:8px;
    font-size:12px;
    line-height:1.55;
  }
  .privatebox-layer-row{
    width:calc(100% - 32px);
  }
}
@media (max-width:600px){
  .privatebox-section{
    min-height:360px;
  }
  .privatebox-bg{
    width:100%;
    height:100%;
    min-height:360px;
    object-fit:cover;
    object-position:center;
  }
  .privatebox-section-1 .privatebox-bg{
    object-position:58% center;
  }
  .privatebox-copy,
  .privatebox-section-7 .privatebox-copy{
    top:34px;
  }
  .privatebox-copy-left{
    top:80px;
    left:24px;
    width:calc(100% - 48px);
  }
  .privatebox-hero-label{
    width:min(100%, 420px);
    margin-top:18px;
  }
  .privatebox-hero-label p{
    padding:0 18px;
    font-size:11px;
    line-height:1.45;
  }
  .privatebox-copy h1{
    font-size:28px;
  }
  .privatebox-copy h2{
    font-size:21px;
  }
  .privatebox-copy p{
    max-width:330px;
  }
  .privatebox-layer-row-single img,
  .privatebox-section-3 .privatebox-layer-row img,
  .privatebox-section-4 .privatebox-layer-row img,
  .privatebox-section-5 .privatebox-layer-row img{
    width:min(86vw, 520px);
  }
}
@media (prefers-reduced-motion:reduce){
  .privatebox-hero-label p span{
    width:100%;
    border-right:0;
    animation:none;
  }
  .privatebox-layer-row img{
    opacity:1;
    transform:none;
    filter:none;
    animation:none;
  }
}

.product-catalog-page{
  background:#fff;
}
.product-catalog{
  background:#fff;
  margin:0;
  padding:0;
}
.catalog-series{
  background:#fff;
}
.catalog-banner{
  position:relative;
  width:100%;
  height:380px;
  overflow:hidden;
  background:#0b0d10;
}
.catalog-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.42) 34%, rgba(0,0,0,0.08) 68%);
  pointer-events:none;
}
.catalog-banner img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 50%;
}
.catalog-banner-copy{
  position:absolute;
  z-index:1;
  left:max(var(--content-px), calc((100% - 1180px) / 2));
  top:50%;
  width:min(470px, calc(100% - var(--content-px) * 2));
  transform:translateY(-50%);
  color:#fff;
}
.catalog-banner-copy h1{
  font-size:40px;
  line-height:1.15;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.catalog-banner-copy p{
  font-size:14px;
  line-height:1.8;
  font-weight:500;
  color:rgba(255,255,255,0.72);
}
.catalog-content{
  width:min(1180px, calc(100% - 48px));
  margin:0 auto;
  padding:34px 0 96px;
}
.catalog-content-simple{
  padding-top:72px;
  min-height:620px;
}
.catalog-group{
  margin-bottom:36px;
}
.catalog-group:last-child{
  margin-bottom:0;
}
.catalog-group h2{
  font-size:22px;
  line-height:1.35;
  font-weight:600;
  color:#1f2437;
  margin-bottom:10px;
}
.catalog-group p{
  font-size:14px;
  line-height:1.7;
  color:#8b929e;
  margin-bottom:18px;
}
.catalog-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:16px;
  align-items:start;
}
.catalog-grid-single{
  grid-template-columns:repeat(4, 1fr);
}
.catalog-grid-two{
  grid-template-columns:repeat(2, 1fr);
  max-width:590px;
}
.catalog-grid-three{
  grid-template-columns:repeat(3, 1fr);
  max-width:885px;
}
.catalog-card{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  min-height:292px;
  padding:34px 20px 28px;
  background:#f1f1f1;
  text-align:center;
  transition:background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.catalog-card:hover{
  background:#eceff6;
  transform:translateY(-2px);
  box-shadow:0 10px 32px rgba(0,0,0,0.08);
}
.catalog-card-img{
  position:relative;
  display:block;
  width:180px;
  height:180px;
  margin-bottom:18px;
}
.catalog-card-img img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:contain;
  transition:opacity var(--transition);
}
.catalog-card-img img + img{
  opacity:0;
}
.catalog-card:hover .catalog-card-img img:first-child{
  opacity:0;
}
.catalog-card:hover .catalog-card-img img + img{
  opacity:1;
}
.catalog-card strong{
  display:block;
  font-size:18px;
  line-height:1.25;
  font-weight:600;
  color:#22243a;
  margin-bottom:6px;
  white-space:nowrap;
}
.catalog-card span:not(.catalog-card-img),
.catalog-card em{
  display:block;
  font-size:15px;
  line-height:1.7;
  font-style:normal;
  color:#8a8f99;
}
@media(max-width:1080px){
  .catalog-banner{height:360px}
  .catalog-banner-copy{width:min(430px, calc(100% - var(--content-px) * 2))}
  .catalog-banner-copy h1{font-size:38px}
  .catalog-content{width:min(860px, calc(100% - 40px))}
  .catalog-grid{grid-template-columns:repeat(3, 1fr)}
  .catalog-grid-two{grid-template-columns:repeat(2, 1fr)}
  .catalog-grid-three{grid-template-columns:repeat(3, 1fr)}
}
@media(max-width:768px){
  .catalog-banner{height:260px}
  .catalog-banner::after{background:linear-gradient(90deg, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.48) 58%, rgba(0,0,0,0.1) 100%)}
  .catalog-banner-copy{width:min(360px, calc(100% - var(--content-px) * 2))}
  .catalog-banner-copy h1{font-size:30px;margin-bottom:12px}
  .catalog-banner-copy p{display:none}
  .catalog-content{width:calc(100% - 32px);padding:30px 0 64px}
  .catalog-content-simple{padding-top:40px;min-height:auto}
  .catalog-grid,
  .catalog-grid-single,
  .catalog-grid-two,
  .catalog-grid-three{
    grid-template-columns:repeat(2, minmax(0, 1fr));
    max-width:none;
  }
  .catalog-card{min-height:240px;padding:26px 14px 22px}
  .catalog-card-img{width:140px;height:140px}
  .catalog-card strong{font-size:20px}
  .catalog-card span:not(.catalog-card-img),
  .catalog-card em{font-size:13px}
}
@media(max-width:500px){
  .catalog-banner{height:190px}
  .catalog-banner-copy h1{font-size:25px;margin-bottom:8px}
  .catalog-banner-copy p{font-size:12px;line-height:1.55}
  .catalog-grid,
  .catalog-grid-single,
  .catalog-grid-two,
  .catalog-grid-three{
    grid-template-columns:1fr;
  }
}

/* ============================================================
   PRODUCT DETAIL / K50 SMART LOCK
   ============================================================ */
.product-k50-page{
  background:#000;
  color:#fff;
}
.product-k50-page .footer{
  margin-top:0;
}
.k50-detail{
  background:#000;
  overflow:hidden;
  font-family:"MiSans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  font-weight:400;
}
.k50-hero{
  position:relative;
  min-height:clamp(620px, 54vw, 1040px);
  background:#101112;
  display:flex;
  align-items:center;
}
.k50-hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.k50-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.08) 48%, rgba(0,0,0,0.34) 100%);
  pointer-events:none;
}
.k50-hero-copy{
  position:relative;
  z-index:1;
  width:min(620px, 40vw);
  margin-left:55%;
  padding-top:50px;
  text-rendering:optimizeLegibility;
  text-align:left;
  transform:translateY(-70px);
}
.k50-eyebrow{
  font-size:clamp(20px, 1.7vw, 26px);
  line-height:1.5;
  color:#16d8c4;
  background:linear-gradient(90deg, #22f0b4 0%,  #1885f2 70%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  font-weight:500;
  margin-bottom:28px;
  letter-spacing:0;
}
.k50-hero h1{
  font-size:clamp(50px, 4.8vw, 92px);
  line-height:1.2;
  font-weight:600;
  letter-spacing:0;
  color:#fff;
  margin-bottom:44px;
}
.k50-hero-specs{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:24px 36px;
  max-width:620px;
  text-align:left;
}
.k50-hero-specs span{
  display:block;
  min-width:0;
}
.k50-hero-specs strong{
  display:block;
  font-size:clamp(16px, 1.2vw, 19px);
  line-height:1.42;
  color:rgba(255,255,255,0.92);
  margin-bottom:8px;
  font-weight:500;
  letter-spacing:0;
}
.k50-hero-specs em{
  display:block;
  font-style:normal;
  font-size:clamp(13px, 0.9vw, 15px);
  line-height:1.55;
  color:rgba(255,255,255,0.48);
  font-weight:300;
  letter-spacing:0;
}
.k50-section,
.k50-image-section{
  background:#000;
}
.k50-section{
  padding:72px 0 0;
}
.k50-image-section{
  position:relative;
  padding:72px 0 0;
}
.k50-image-section .k50-section-head{
  position:static;
  transform:none;
  margin:0 auto 22px;
  pointer-events:auto;
}
.k50-section-opening{
  background:#111;
}
.k50-section-head{
  width:min(1200px, calc(100% - 48px));
  margin:40px auto 0;
  text-align:center;
}
.k50-section-head h2{
  font-size:clamp(26px, 2.4vw, 42px);
  line-height:1.28;
  color:#f6f7f8;
  margin-bottom:12px;
  letter-spacing:0;
  font-weight:500;
}
.k50-section-head p{
  font-size:clamp(13px, 1vw, 16px);
  line-height:1.8;
  color:rgba(255,255,255,0.46);
  font-weight:300;
  letter-spacing:0;
}
.k50-section img,
.k50-image-section img{
  width:100%;
  max-width:1920px;
  margin:0 auto;
}
.k50-last-section{
  background:#121212;
}

/* K50 section title position controls */
.k50-opening .k50-section-head{
  margin-top:40px;
  transform:translateY(0);
}
.k50-security .k50-section-head{
  margin-top:40px;
  transform:translateY(0);
}
.k50-craft{
  --k50-head-top:7.5%;
  --k50-head-y:0px;
}
.k50-permission{
  --k50-head-top:7.5%;
  --k50-head-y:0px;
}
.k50-dingtalk{
  --k50-head-top:7.5%;
  --k50-head-y:0px;
}
.k50-mobile-management{
  --k50-head-top:0;
  --k50-head-y:0px;
}
.k50-battery-life{
  --k50-head-top:0;
  --k50-head-y:-10px;
}
.k50-gateway{
  --k50-head-top:7.5%;
  --k50-head-y:0px;
}
.k50-activation{
  --k50-head-top:7.5%;
  --k50-head-y:0px;
}
@media(max-width:1100px){
  .k50-hero{
    min-height:620px;
  }
  .k50-hero-copy{
    width:min(480px, calc(100% - 48px));
    margin-left:auto;
    margin-right:24px;
  }
  .k50-hero-specs{
    grid-template-columns:repeat(3, minmax(0, 1fr));
    gap:18px 20px;
  }
}
@media(max-width:768px){
  .k50-hero{
    min-height:720px;
    align-items:flex-start;
  }
  .k50-hero-bg{
    object-position:32% center;
  }
  .k50-hero::after{
    background:linear-gradient(180deg, rgba(0,0,0,0.26) 0%, rgba(0,0,0,0.08) 42%, rgba(0,0,0,0.76) 100%);
  }
  .k50-hero-copy{
    width:calc(100% - 40px);
    margin:0 auto;
    padding-top:calc(var(--nav-h-scrolled) + 34px);
    transform:none;
  }
  .k50-hero h1{
    max-width:360px;
    margin-bottom:28px;
  }
  .k50-hero-specs{
    display:none;
  }
  .k50-hero-specs strong{
    font-size:12px;
  }
  .k50-hero-specs em{
    font-size:10px;
  }
  .k50-section{
    position:relative;
    padding:48px 0 0;
    overflow:visible;
  }
  .k50-image-section{
    aspect-ratio:auto;
    padding:48px 0 0;
    overflow:visible;
  }
  .k50-section .k50-section-head{
    position:static;
    transform:none;
    margin:0 auto 16px;
  }
  .k50-section img,
  .k50-image-section img{
    width:100%;
    height:100vw;
    max-height:768px;
    max-width:none;
    object-fit:cover;
    object-position:center center;
  }
  .k50-image-section .k50-section-head{
    position:static;
    transform:none;
    margin:0 auto 16px;
  }
  .k50-section-head{
    width:calc(100% - 40px);
    margin-bottom:16px;
  }
  .k50-section-head p{
    display:none;
  }
  .k50-craft{
    --k50-head-mobile-top:6%;
    --k50-head-mobile-y:0px;
  }
  .k50-permission{
    --k50-head-mobile-top:6%;
    --k50-head-mobile-y:0px;
  }
  .k50-dingtalk{
    --k50-head-mobile-top:6%;
    --k50-head-mobile-y:0px;
  }
  .k50-mobile-management{
    --k50-head-mobile-top:0;
    --k50-head-mobile-y:-48px;
  }
  .k50-battery-life{
    --k50-head-mobile-top:0;
    --k50-head-mobile-y:-48px;
  }
  .k50-gateway{
    --k50-head-mobile-top:6%;
    --k50-head-mobile-y:0px;
  }
  .k50-activation{
    --k50-head-mobile-top:6%;
    --k50-head-mobile-y:0px;
  }
}

.product-d5-page{
  background:#050608;
  color:#fff;
}
.product-d5-page .footer{
  margin-top:0;
}
.d5-detail{
  background:#050608;
  color:#fff;
  overflow:hidden;
  font-family:"MiSans","PingFang SC","Microsoft YaHei",sans-serif;
}
.d5-detail img,
.d5-detail video{
  display:block;
  max-width:100%;
}
.d5-hero{
  position:relative;
  min-height:900px;
  overflow:hidden;
  background:#050608;
}
.d5-hero-bg{
  position:absolute;
  inset:0;
  background:url("../assets/product_detail/d5/44.png") center top/cover no-repeat;
  opacity:.98;
}
.d5-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 68% 36%, rgba(12,155,255,.2), transparent 34%),
    linear-gradient(90deg, rgba(0,0,0,.82), rgba(0,0,0,.34) 48%, rgba(0,0,0,.72));
}
.d5-hero-inner{
  position:relative;
  z-index:1;
  width:min(1280px, calc(100% - 80px));
  min-height:900px;
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(390px, .88fr) 1.12fr;
  align-items:center;
  gap:54px;
  padding:90px 0 70px;
}
.d5-hero-copy{
  padding-top:26px;
}
.d5-eyebrow{
  margin:0 0 18px;
  font-size:18px;
  font-weight:500;
  color:#17e3dc;
}
.d5-hero h1{
  margin:0;
  font-size:76px;
  line-height:1.08;
  font-weight:600;
  letter-spacing:0;
}
.d5-hero-copy p:not(.d5-eyebrow){
  max-width:520px;
  margin:26px 0 0;
  color:rgba(255,255,255,.72);
  font-size:22px;
  line-height:1.75;
  font-weight:300;
}
.d5-hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:38px;
}
.d5-hero-badges span{
  padding:10px 18px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.86);
  font-size:15px;
}
.d5-hero-product{
  justify-self:end;
  width:min(650px, 100%);
  filter:drop-shadow(0 34px 60px rgba(0,0,0,.46));
}
.d5-section-head{
  width:min(1040px, calc(100% - 64px));
  margin:0 auto;
  text-align:center;
}
.d5-section-head h2{
  margin:0;
  font-size:48px;
  line-height:1.18;
  font-weight:600;
  letter-spacing:0;
}
.d5-section-head p{
  max-width:760px;
  margin:18px auto 0;
  color:rgba(255,255,255,.66);
  font-size:20px;
  line-height:1.7;
  font-weight:300;
}
.d5-video-section,
.d5-culture-section,
.d5-dark-feature,
.d5-ai-section,
.d5-namecard-section,
.d5-algorithm-section,
.d5-access-section,
.d5-structure-section,
.d5-quality-section{
  position:relative;
  padding:112px 0;
  background:#050608;
}
.d5-video-section{
  background:#0d0f12;
}
.d5-video-frame{
  width:min(1200px, calc(100% - 72px));
  margin:62px auto 0;
  overflow:hidden;
  border-radius:0;
  background:#000;
  box-shadow:0 34px 100px rgba(0,0,0,.52);
}
.d5-video-frame video{
  width:100%;
  aspect-ratio:16/7.6;
  object-fit:cover;
}
.d5-culture-section{
  background:
    radial-gradient(circle at 50% 18%, rgba(30,109,255,.18), transparent 30%),
    #050608;
}
.d5-culture-grid{
  width:min(1180px, calc(100% - 72px));
  margin:64px auto 0;
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:28px;
}
.d5-culture-grid article{
  position:relative;
  overflow:hidden;
  background:#101216;
  min-height:300px;
}
.d5-culture-grid img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.d5-culture-grid span{
  position:absolute;
  left:24px;
  bottom:22px;
  padding:8px 14px;
  border-radius:999px;
  background:rgba(0,0,0,.46);
  backdrop-filter:blur(8px);
  font-size:16px;
  color:#fff;
}
.d5-lighting-section{
  padding-bottom:0;
  background:#07080b;
}
.d5-lighting-stage{
  width:min(1280px, calc(100% - 72px));
  margin:56px auto 0;
}
.d5-lighting-stage img{
  width:100%;
  margin:0 auto;
}
.d5-ai-section{
  background:
    radial-gradient(circle at 22% 44%, rgba(9,189,198,.18), transparent 28%),
    linear-gradient(180deg, #07080b, #050608);
}
.d5-ai-layout{
  width:min(1200px, calc(100% - 72px));
  margin:64px auto 0;
  display:grid;
  grid-template-columns:320px 1fr;
  gap:46px;
  align-items:center;
}
.d5-ai-mascot{
  display:flex;
  align-items:center;
  justify-content:center;
}
.d5-ai-mascot img{
  width:min(300px, 100%);
}
.d5-ai-cards{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:18px;
}
.d5-ai-cards article{
  min-height:330px;
  padding:22px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.08);
}
.d5-ai-cards img{
  width:100%;
  height:150px;
  object-fit:contain;
  margin-bottom:22px;
}
.d5-ai-cards h3,
.d5-quality-grid h3{
  margin:0;
  font-size:22px;
  line-height:1.35;
  font-weight:500;
}
.d5-ai-cards p,
.d5-quality-grid p{
  margin:12px 0 0;
  color:rgba(255,255,255,.62);
  font-size:15px;
  line-height:1.7;
  font-weight:300;
}
.d5-ai-note{
  width:min(1200px, calc(100% - 72px));
  margin:32px auto 0;
  color:rgba(255,255,255,.42);
  font-size:14px;
  text-align:center;
}
.d5-namecard-section{
  background:#090a0d;
}
.d5-namecard-showcase{
  width:min(1180px, calc(100% - 72px));
  margin:60px auto 0;
  display:grid;
  grid-template-columns:420px 1fr;
  gap:72px;
  align-items:center;
}
.d5-namecard-showcase > img{
  width:100%;
  filter:drop-shadow(0 28px 70px rgba(0,0,0,.58));
}
.d5-namecard-tags{
  display:grid;
  gap:20px;
}
.d5-namecard-tags img{
  max-width:100%;
  justify-self:start;
}
.d5-algorithm-section{
  background:
    radial-gradient(circle at 54% 48%, rgba(0,92,255,.22), transparent 32%),
    #050608;
}
.d5-metrics{
  width:min(880px, calc(100% - 72px));
  margin:52px auto 0;
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:20px;
}
.d5-metrics div{
  padding:28px 22px;
  text-align:center;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.08);
}
.d5-metrics strong{
  display:block;
  font-size:42px;
  line-height:1;
  font-weight:600;
  color:#13dfe2;
}
.d5-metrics span{
  display:block;
  margin-top:12px;
  color:rgba(255,255,255,.74);
  font-size:16px;
}
.d5-algorithm-device{
  width:min(980px, calc(100% - 72px));
  margin:54px auto 0;
}
.d5-access-section{
  background:#0b0c10;
}
.d5-access-grid{
  width:min(1120px, calc(100% - 72px));
  margin:58px auto 0;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.d5-access-grid img{
  width:100%;
}
.d5-access-grid div{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:16px;
}
.d5-access-grid span{
  padding:24px 18px;
  text-align:center;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.09);
  color:#fff;
  font-size:20px;
  font-weight:500;
}
.d5-structure-section{
  background:
    radial-gradient(circle at 50% 40%, rgba(255,255,255,.08), transparent 32%),
    #050608;
}
.d5-exploded{
  position:relative;
  width:min(1180px, calc(100% - 72px));
  min-height:620px;
  margin:48px auto 0;
}
.d5-exploded img{
  position:absolute;
  width:auto;
  max-width:none;
  filter:drop-shadow(0 24px 44px rgba(0,0,0,.5));
}
.d5-exploded img:nth-child(1){left:5%;top:12%;width:16%;}
.d5-exploded img:nth-child(2){left:22%;top:4%;width:16%;}
.d5-exploded img:nth-child(3){left:39%;top:23%;width:22%;}
.d5-exploded img:nth-child(4){left:57%;top:4%;width:20%;}
.d5-exploded img:nth-child(5){left:43%;top:58%;width:18%;}
.d5-exploded img:nth-child(6){left:74%;top:24%;width:18%;}
.d5-quality-section{
  background:#0b0c10;
}
.d5-quality-grid{
  width:min(1180px, calc(100% - 72px));
  margin:60px auto 0;
  display:grid;
  grid-template-columns:repeat(4, minmax(0, 1fr));
  gap:20px;
}
.d5-quality-grid article{
  padding:20px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.08);
}
.d5-quality-grid img{
  width:100%;
  aspect-ratio:1.22/1;
  object-fit:cover;
  margin-bottom:20px;
  background:#111;
}
.d5-data-note{
  width:min(960px, calc(100% - 72px));
  margin:54px auto 0;
  color:rgba(255,255,255,.42);
  font-size:14px;
  line-height:1.8;
  text-align:center;
}

@media (max-width: 900px){
  .d5-hero{
    min-height:auto;
  }
  .d5-hero-inner{
    width:100%;
    min-height:auto;
    grid-template-columns:1fr;
    gap:30px;
    padding:104px 22px 54px;
  }
  .d5-hero::after{
    background:linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,.9));
  }
  .d5-hero-copy{
    padding-top:0;
    text-align:left;
  }
  .d5-eyebrow{
    font-size:15px;
    margin-bottom:14px;
  }
  .d5-hero h1{
    font-size:44px;
  }
  .d5-hero-copy p:not(.d5-eyebrow){
    font-size:16px;
    line-height:1.7;
    margin-top:18px;
  }
  .d5-hero-badges{
    gap:8px;
    margin-top:24px;
  }
  .d5-hero-badges span{
    padding:8px 12px;
    font-size:13px;
  }
  .d5-hero-product{
    width:min(360px, 90vw);
    justify-self:center;
  }
  .d5-video-section,
  .d5-culture-section,
  .d5-dark-feature,
  .d5-ai-section,
  .d5-namecard-section,
  .d5-algorithm-section,
  .d5-access-section,
  .d5-structure-section,
  .d5-quality-section{
    padding:66px 0;
  }
  .d5-section-head{
    width:calc(100% - 40px);
    text-align:left;
  }
  .d5-section-head h2{
    font-size:30px;
  }
  .d5-section-head p{
    margin-top:12px;
    font-size:15px;
    line-height:1.65;
  }
  .d5-video-frame,
  .d5-culture-grid,
  .d5-lighting-stage,
  .d5-ai-layout,
  .d5-namecard-showcase,
  .d5-metrics,
  .d5-access-grid,
  .d5-exploded,
  .d5-quality-grid,
  .d5-ai-note,
  .d5-data-note{
    width:calc(100% - 40px);
  }
  .d5-video-frame{
    margin-top:34px;
  }
  .d5-video-frame video{
    aspect-ratio:1/1;
    object-fit:cover;
  }
  .d5-culture-grid{
    grid-template-columns:1fr;
    gap:16px;
    margin-top:34px;
  }
  .d5-culture-grid article{
    aspect-ratio:1/1;
    min-height:0;
  }
  .d5-culture-grid img{
    object-fit:cover;
  }
  .d5-lighting-stage{
    margin-top:32px;
  }
  .d5-lighting-stage img{
    aspect-ratio:1/1;
    object-fit:cover;
  }
  .d5-ai-layout,
  .d5-namecard-showcase,
  .d5-access-grid{
    grid-template-columns:1fr;
    gap:28px;
    margin-top:34px;
  }
  .d5-ai-cards,
  .d5-quality-grid{
    grid-template-columns:1fr;
  }
  .d5-ai-cards article{
    min-height:0;
  }
  .d5-ai-cards img{
    height:auto;
    aspect-ratio:1.65/1;
    object-fit:contain;
  }
  .d5-namecard-showcase > img{
    width:min(300px, 82vw);
    margin:0 auto;
  }
  .d5-namecard-tags{
    gap:12px;
  }
  .d5-metrics{
    grid-template-columns:1fr;
    margin-top:34px;
  }
  .d5-metrics strong{
    font-size:34px;
  }
  .d5-algorithm-device{
    width:calc(100% - 40px);
    aspect-ratio:1/1;
    object-fit:contain;
    margin-top:36px;
  }
  .d5-access-grid div{
    grid-template-columns:1fr 1fr;
  }
  .d5-access-grid span{
    padding:18px 12px;
    font-size:15px;
  }
  .d5-exploded{
    min-height:auto;
    display:grid;
    grid-template-columns:repeat(2, minmax(0, 1fr));
    gap:14px;
    margin-top:34px;
  }
  .d5-exploded img{
    position:static;
    width:100% !important;
    max-width:100%;
    aspect-ratio:1/1;
    object-fit:contain;
    padding:12px;
    background:rgba(255,255,255,.045);
  }
  .d5-quality-grid{
    margin-top:34px;
    gap:16px;
  }
  .d5-data-note{
    margin-top:34px;
    text-align:left;
  }
}
@media(max-width:480px){
  .k50-hero{
    min-height:650px;
  }
  .k50-hero-bg{
    object-position:28% center;
  }
  .k50-hero-copy{
    padding-top:calc(var(--nav-h-scrolled) + 26px);
  }
  .k50-hero h1{
    font-size:36px;
  }
  .k50-hero-specs{
    top:455px;
    grid-template-columns:repeat(2, minmax(0, 1fr));
  }
}