:root{
  --bg:#f4fbff;
  --paper:#ffffff;
  --ink:#153141;
  --muted:#607784;
  --line:rgba(21,49,65,.09);
  --mint:#9eedd9;
  --sky:#9ad4ff;
  --gold:#ffd392;
  --deep:#17384c;
}

*{ box-sizing:border-box; }

html,body{
  margin:0;
  min-height:100%;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
}

body{
  background:
    radial-gradient(700px 360px at 8% 0%, rgba(158,237,217,.34), transparent 60%),
    radial-gradient(760px 420px at 100% 5%, rgba(154,212,255,.28), transparent 58%),
    linear-gradient(180deg, #fbfeff 0%, #f4fbff 56%, #eef7fb 100%);
}

.page{
  min-height:100vh;
  overflow:hidden;
  position:relative;
}

.ambient{
  position:absolute;
  inset:0;
  pointer-events:none;
}

.mist,
.grid-light{
  position:absolute;
}

.mist{
  border-radius:999px;
  filter:blur(24px);
  opacity:.52;
  animation:float 12s ease-in-out infinite;
}

.mist-a{
  width:320px;
  height:320px;
  top:120px;
  right:-80px;
  background:rgba(154,212,255,.24);
}

.mist-b{
  width:260px;
  height:260px;
  left:-40px;
  bottom:140px;
  background:rgba(158,237,217,.24);
  animation-direction:reverse;
}

.grid-light{
  inset:0;
  background-image:
    linear-gradient(rgba(21,49,65,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21,49,65,.035) 1px, transparent 1px);
  background-size:28px 28px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.2), transparent 68%);
}

.shell{
  max-width:1180px;
  margin:0 auto;
  padding:34px 18px 56px;
  position:relative;
  z-index:1;
}

.hero{
  display:grid;
  grid-template-columns:minmax(0,.84fr) minmax(360px,1.16fr);
  gap:28px;
  align-items:center;
}

.hero-copy{
  padding-top:12px;
  animation:fade-up .7s ease both;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  min-height:34px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.84);
  border:1px solid rgba(21,49,65,.08);
  color:#4d6977;
  font-size:11px;
  font-weight:900;
  letter-spacing:.16em;
}

.eyebrow-light{
  background:rgba(255,255,255,.72);
}

.eyebrow-dark{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.18);
  color:#ecf6f9;
}

.hero h1,
.section-head h2,
.cta h2{
  margin:18px 0 0;
  font-family:"STZhongsong","Songti SC","Noto Serif SC",serif;
  font-weight:900;
}

.hero h1{
  max-width:620px;
  font-size:clamp(38px,5vw,60px);
  line-height:1.08;
}

.hero p{
  max-width:560px;
  margin:18px 0 0;
  color:var(--muted);
  font-size:15px;
  line-height:1.95;
}

.actions{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:154px;
  min-height:50px;
  padding:0 22px;
  border-radius:16px;
  text-decoration:none;
  font-size:15px;
  font-weight:900;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.btn:hover{
  transform:translateY(-2px);
}

.btn-primary{
  color:var(--ink);
  background:linear-gradient(135deg, var(--mint), var(--sky) 60%, var(--gold));
  box-shadow:0 16px 30px rgba(31,107,120,.14);
}

.btn-secondary{
  color:#244556;
  background:rgba(255,255,255,.94);
  border:1px solid rgba(21,49,65,.12);
}

.btn-secondary-dark{
  color:#f8fcff;
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.18);
}

.value-row{
  margin-top:18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.value-row span{
  padding:10px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.74);
  border:1px solid rgba(21,49,65,.08);
  color:#4a6574;
  font-size:12px;
  font-weight:800;
}

.visual-stage{
  position:relative;
  min-height:780px;
  padding-bottom:248px;
  transform-style:preserve-3d;
  animation:fade-up .95s ease both;
}

.halo{
  position:absolute;
  border-radius:999px;
  filter:blur(16px);
}

.halo-a{
  width:280px;
  height:280px;
  right:80px;
  top:18px;
  background:radial-gradient(circle, rgba(255,211,146,.56), transparent 70%);
}

.halo-b{
  width:260px;
  height:260px;
  left:34px;
  bottom:66px;
  background:radial-gradient(circle, rgba(154,212,255,.45), transparent 72%);
}

.screen-card{
  position:absolute;
  overflow:hidden;
  border:1px solid rgba(21,49,65,.12);
  background:rgba(255,255,255,.96);
  box-shadow:0 28px 68px rgba(21,49,65,.18);
  backdrop-filter:blur(10px);
}

.screen-card img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}

.screen-main{
  right:28px;
  top:28px;
  width:min(448px, 62vw);
  height:640px;
  padding:14px;
  border-radius:34px;
  transform:rotateX(8deg) rotateY(-14deg) rotateZ(1deg);
}

.screen-rail{
  position:absolute;
  left:0;
  right:0;
  bottom:22px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  align-items:end;
  transform:translateZ(98px);
}

.screen-bar{
  display:flex;
  gap:7px;
  padding:2px 0 10px;
}

.screen-bar span{
  width:10px;
  height:10px;
  border-radius:999px;
  background:rgba(21,49,65,.14);
}

.screen-main img{
  border-radius:24px;
  object-position:center top;
  box-shadow:inset 0 0 0 1px rgba(21,49,65,.06);
}

.screen-float{
  position:relative;
  width:100%;
  height:220px;
  border-radius:24px;
  box-shadow:0 20px 44px rgba(21,49,65,.14);
}

.screen-label{
  position:absolute;
  left:16px;
  top:14px;
  z-index:2;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.9);
  color:#315162;
  font-size:11px;
  font-weight:900;
  letter-spacing:.08em;
}

.screen-one{
  transform:rotate(-5deg);
}

.screen-one img{
  object-fit:contain;
  object-position:center center;
  padding:48px 14px 14px;
  background:linear-gradient(180deg, #edf8fc, #ffffff 78%);
}

.screen-two{
  transform:rotate(4deg);
}

.screen-two img{
  object-fit:contain;
  object-position:center center;
  padding:48px 14px 14px;
  background:linear-gradient(180deg, #edf8fc, #ffffff 78%);
}

.metric-card{
  position:absolute;
  display:flex;
  flex-direction:column;
  gap:6px;
  min-width:184px;
  padding:18px 20px;
  border-radius:22px;
  background:rgba(18,48,66,.92);
  color:#f2f9fb;
  box-shadow:0 20px 42px rgba(21,49,65,.18);
}

.metric-title{
  font-size:11px;
  letter-spacing:.12em;
  opacity:.7;
  font-weight:900;
}

.metric-card strong{
  font-size:24px;
  line-height:1.2;
}

.metric-card span{
  font-size:13px;
  line-height:1.65;
  color:rgba(242,249,251,.82);
}

.metric-left{
  left:14px;
  top:18px;
  transform:translateZ(130px) rotate(-6deg);
}

.metric-right{
  right:0;
  bottom:266px;
  transform:translateZ(120px) rotate(6deg);
}

.section-head-wide{
  max-width:920px;
}

.product-gallery{
  margin-top:56px;
}

.mosaic-grid{
  margin-top:22px;
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:18px;
}

.mosaic-card{
  position:relative;
  overflow:hidden;
  border-radius:30px;
  border:1px solid rgba(21,49,65,.1);
  background:rgba(255,255,255,.94);
  box-shadow:0 22px 46px rgba(21,49,65,.1);
}

.mosaic-card img{
  width:100%;
  height:100%;
  display:block;
}

.mosaic-copy{
  position:absolute;
  left:18px;
  top:18px;
  z-index:2;
  max-width:280px;
}

.mosaic-copy span{
  display:inline-flex;
  min-height:30px;
  align-items:center;
  padding:0 10px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  color:#45606e;
  font-size:11px;
  font-weight:900;
  letter-spacing:.12em;
}

.mosaic-copy h3{
  margin:10px 0 0;
  color:#153141;
  font-size:22px;
  line-height:1.35;
}

.mosaic-home{
  grid-column:span 5;
  grid-row:span 2;
  min-height:620px;
}

.mosaic-home img{
  object-fit:cover;
  object-position:center top;
  background:#f4fbff;
}

.mosaic-rank,
.mosaic-pet{
  grid-column:span 7;
  min-height:301px;
}

.mosaic-class,
.mosaic-student,
.mosaic-mall{
  grid-column:span 4;
  min-height:248px;
}

.mosaic-rank img,
.mosaic-pet img,
.mosaic-class img,
.mosaic-student img,
.mosaic-mall img{
  object-fit:contain;
  object-position:center center;
  padding:62px 16px 16px;
  background:linear-gradient(180deg, #eef8fc, #ffffff 82%);
}

.proof-strip{
  margin-top:12px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}

.proof-card{
  padding:18px 20px;
  border-radius:22px;
  background:rgba(255,255,255,.74);
  border:1px solid var(--line);
  box-shadow:0 12px 30px rgba(21,49,65,.06);
}

.proof-card strong{
  display:block;
  font-size:20px;
  line-height:1.2;
}

.proof-card span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:13px;
  line-height:1.7;
}

.showcase,
.workflow{
  margin-top:56px;
}

.section-head{
  max-width:820px;
}

.section-head h2{
  font-size:clamp(28px,4vw,42px);
  line-height:1.22;
}

.showcase-grid{
  margin-top:22px;
  display:block;
}

.preview-card{
  position:relative;
  overflow:hidden;
  border-radius:30px;
  background:rgba(255,255,255,.94);
  border:1px solid rgba(21,49,65,.1);
  box-shadow:0 22px 46px rgba(21,49,65,.1);
}

.preview-card img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}

.preview-copy{
  position:absolute;
  left:18px;
  top:18px;
  z-index:2;
  max-width:300px;
}

.preview-copy span{
  display:inline-flex;
  min-height:30px;
  align-items:center;
  padding:0 10px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  color:#45606e;
  font-size:11px;
  font-weight:900;
  letter-spacing:.12em;
}

.preview-copy h3{
  margin:10px 0 0;
  color:#153141;
  font-size:22px;
  line-height:1.35;
}

.preview-hero{
  min-height:340px;
}

.preview-hero img{
  object-position:center top;
  background:#f4fbff;
}

.gallery-grid{
  margin-top:18px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}

.preview-detail{
  min-height:250px;
  background:linear-gradient(180deg, #eef8fc, #ffffff 82%);
}

.preview-detail img{
  object-fit:contain;
  object-position:center center;
  padding:62px 16px 16px;
}

.workflow-grid{
  margin-top:22px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}

.workflow-card{
  padding:24px;
  border-radius:28px;
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  box-shadow:0 18px 36px rgba(21,49,65,.07);
}

.workflow-no{
  display:inline-flex;
  min-width:44px;
  min-height:44px;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(158,237,217,.72), rgba(154,212,255,.58));
  font-size:14px;
  font-weight:900;
}

.workflow-card h3{
  margin:16px 0 0;
  font-size:24px;
  line-height:1.28;
}

.workflow-card p{
  margin:12px 0 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}

.cta{
  margin-top:28px;
}

.cta-panel{
  display:flex;
  justify-content:space-between;
  gap:18px;
  align-items:center;
  padding:28px;
  border-radius:30px;
  background:linear-gradient(135deg, rgba(15,44,60,.96), rgba(23,67,89,.92));
  box-shadow:0 24px 50px rgba(21,49,65,.14);
}

.cta h2{
  color:#f4fbff;
  font-size:clamp(28px,4vw,42px);
  line-height:1.2;
}

.actions-dark{
  margin-top:0;
}

@keyframes fade-up{
  from{ opacity:0; transform:translateY(22px); }
  to{ opacity:1; transform:translateY(0); }
}

@keyframes float{
  0%,100%{ transform:translate3d(0,0,0); }
  50%{ transform:translate3d(0,-18px,0); }
}

@media (max-width: 1024px){
  .hero{
    grid-template-columns:1fr;
  }

  .mosaic-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }

  .mosaic-home,
  .mosaic-rank,
  .mosaic-pet{
    grid-column:span 2;
  }

  .mosaic-class,
  .mosaic-student,
  .mosaic-mall{
    grid-column:span 1;
  }

  .mosaic-home{
    min-height:520px;
  }

  .visual-stage{
    min-height:760px;
    margin-top:8px;
  }

  .screen-main{
    left:50%;
    right:auto;
    transform:translateX(-50%) rotateX(4deg) rotateY(-7deg);
  }

  .screen-rail{
    left:18px;
    right:18px;
  }

  .metric-right{
    right:24px;
  }

  .proof-strip,
  .gallery-grid,
  .workflow-grid{
    grid-template-columns:1fr;
  }

  .cta-panel{
    flex-direction:column;
    align-items:flex-start;
  }
}

@media (max-width: 720px){
  .shell{
    padding:22px 14px 40px;
  }

  .hero h1{
    font-size:36px;
  }

  .mosaic-grid{
    grid-template-columns:1fr;
  }

  .mosaic-home,
  .mosaic-rank,
  .mosaic-pet,
  .mosaic-class,
  .mosaic-student,
  .mosaic-mall{
    grid-column:span 1;
  }

  .mosaic-home{
    min-height:360px;
  }

  .mosaic-rank,
  .mosaic-pet,
  .mosaic-class,
  .mosaic-student,
  .mosaic-mall{
    min-height:220px;
  }

  .mosaic-copy h3{
    font-size:18px;
  }

  .visual-stage{
    min-height:auto;
    display:grid;
    gap:14px;
    padding-bottom:0;
  }

  .screen-card,
  .metric-card,
  .halo,
  .screen-rail{
    position:relative;
    inset:auto;
    left:auto;
    right:auto;
    top:auto;
    bottom:auto;
    transform:none !important;
  }

  .screen-main{
    width:100%;
    height:520px;
  }

  .screen-rail{
    display:grid;
    grid-template-columns:1fr;
    gap:14px;
    transform:none !important;
  }

  .screen-float,
  .metric-card{
    width:100%;
    min-height:unset;
  }

  .screen-float{
    height:180px;
  }

  .preview-hero,
  .preview-detail{
    min-height:220px;
  }

  .preview-copy h3{
    font-size:18px;
  }

  .workflow-card h3{
    font-size:20px;
  }

  .btn{
    width:100%;
  }
}