.hero{position:relative;margin-top:0;height:78vh;min-height:620px;color:#fff;overflow:hidden}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transform-origin:center;animation:fade 12s linear infinite, zoom 12s linear infinite}
.slide:nth-child(1){animation-delay:0s,0s}
.slide:nth-child(2){animation-delay:-6s,-6s}
.slide::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(4,16,44,.78),rgba(4,16,44,.28))}
.slide.bg1{background:url("../image/1.webp") center/cover no-repeat}
.slide.bg2{background:url("../image/2.webp") center/cover no-repeat}
@keyframes fade{0%{opacity:0}4%{opacity:1}46%{opacity:1}50%{opacity:0}100%{opacity:0}}
@keyframes zoom{0%{transform:scale(1)}50%{transform:scale(1.08)}51%{transform:scale(1)}100%{transform:scale(1)}}
.hero-inner{position:relative;z-index:2;height:100%}
.hero-content{position:absolute;left:60px;top:50%;transform:translateY(-50%);max-width:640px;padding:34px 36px;border-radius:24px;background:rgba(255,255,255,.08);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.16);box-shadow:0 20px 45px rgba(0,0,0,.18)}
.hero-content::before{content:"";position:absolute;left:0;top:28px;bottom:28px;width:4px;border-radius:999px;background:#0055FF}
.hero-title{font-size:56px;line-height:1.12;font-weight:800}
.hero-sub{margin-top:18px;font-size:18px;color:#cfe6ff}
.stats{position:absolute;bottom:34px;left:60px;right:60px;display:flex;gap:48px;justify-content:flex-end}
.stat{flex:0 0 auto;min-width:200px;text-align:right}
.stat .num{font-size:48px;font-weight:800;color:#fff;position:relative;letter-spacing:.5px}
@property --n{syntax:"<integer>";initial-value:0;inherits:false}
.num{--n:0;counter-reset:n var(--n)}
.num{animation-duration:1.5s;animation-timing-function:linear;animation-fill-mode:both}
.num[data-target="3200"]{animation-name:count3200}
.num[data-target="2000"]{animation-name:count2000}
.num[data-target="3000"]{animation-name:count3000}
@keyframes count3200{to{--n:3200}}
@keyframes count2000{to{--n:2000}}
@keyframes count3000{to{--n:3000}}
@supports (animation-timeline: view()){
  .num{animation-timeline:view();animation-range:entry 20% cover 40%}
}
.stat .label{margin-top:6px;font-size:16px;color:#cfe6ff}
.section-about{background:#fff;padding:96px 0 88px}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:0;align-items:center}
.about-img{width:100%;max-width:640px;border-radius:28px;box-shadow:0 22px 50px rgba(8,30,66,.14);overflow:hidden;position:relative}
.about-img img{width:100%;height:auto;display:block}
.about-info{position:relative;z-index:1;margin-left:-72px;padding:42px 40px;border-radius:28px;background:linear-gradient(180deg,#f7faff,#edf3ff);box-shadow:0 22px 50px rgba(0,85,255,.08)}
.about-title{font-size:34px;line-height:1.25;font-weight:800;color:#0b2f4a;margin-bottom:16px}
.about-text{color:#2b3a4a;font-size:15px;line-height:1.8}
.btns{margin-top:26px}
.btn-primary{display:inline-block;background:#0055FF;color:#fff;padding:12px 22px;border-radius:10px;font-weight:700;letter-spacing:.4px;transition:transform .18s ease, box-shadow .18s ease}
.btn-primary:hover{transform:scale(1.06);box-shadow:0 10px 22px rgba(0,85,255,.32)}
.section-products{background:linear-gradient(180deg,#f7faff,#edf3ff);padding:92px 0}
.products-head{max-width:720px;margin:0 auto 34px;text-align:center}
.products-title{font-size:32px;font-weight:800;color:#0b2f4a;margin-bottom:10px}
.products-sub{color:#2b3a4a;font-size:15px;line-height:1.8}
.prod-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;align-items:stretch}
.prod-card{position:relative;background:#fff;border-radius:18px;padding:14px;transition:transform .18s ease, box-shadow .18s ease,border-color .18s ease;border:1px solid rgba(0,85,255,.08);box-shadow:0 10px 24px rgba(0,61,160,.05);overflow:hidden}
.prod-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,#0055FF,#4a8bff)}
.prod-card:hover{transform:translateY(-5px);border-color:rgba(0,85,255,.18);box-shadow:0 16px 32px rgba(0,61,160,.12)}
.prod-pic{width:100%;aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:#f5f8ff}
.prod-pic img{width:100%;height:100%;object-fit:cover;display:block}
.prod-name{text-align:center;font-weight:800;margin-top:14px;color:#0b2f4a;font-size:17px}
.prod-desc{text-align:center;color:#5a6879;font-size:13px;margin-top:8px;line-height:1.7}
.section-why{position:relative;background:url("../image/2.webp") center/cover no-repeat;padding:90px 0}
.section-why::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,85,255,.22),rgba(0,63,194,.3))}
.why-inner{position:relative;z-index:1}
.why-head{text-align:center;margin-bottom:34px}
.why-title{font-size:32px;font-weight:800;color:#fff}
.why-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:stretch}
.why-card{position:relative;height:100%;min-height:190px;background:rgba(255,255,255,.94);border-radius:22px;padding:24px 22px 24px 96px;border:1px solid rgba(255,255,255,.28);box-shadow:0 12px 28px rgba(0,0,0,.1);transition:transform .18s ease, box-shadow .18s ease}
.why-card:hover{transform:translateY(-6px);box-shadow:0 20px 36px rgba(0,0,0,.16)}
.why-icon{position:absolute;left:22px;top:24px;width:56px;height:56px;border-radius:18px;background:linear-gradient(180deg,#eef4ff,#dbe7ff);color:#0055FF;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:inset 0 0 0 1px rgba(0,85,255,.08)}
.why-name{font-weight:800;color:#0b2f4a;margin:0;font-size:18px;line-height:1.45;text-align:left}
.why-text{margin-top:10px;color:#4a5a6a;font-size:14px;line-height:1.8;text-align:left;overflow:hidden;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical}
.section-hot{padding:92px 0;background:linear-gradient(180deg,#ffffff,#f7faff)}
.hot-head{text-align:center;margin-bottom:28px}
.hot-title{font-size:32px;font-weight:800;color:#0b2f4a}
.hot-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.hot-card{background:#fff;border-radius:18px;padding:14px;transition:transform .18s ease, box-shadow .18s ease;border:1px solid rgba(0,85,255,.08);box-shadow:0 10px 24px rgba(0,61,160,.06)}
.hot-card:hover{transform:translateY(-5px);box-shadow:0 16px 30px rgba(0,61,160,.12)}
.hot-pic{width:100%;aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:#fff}
.hot-pic img{width:100%;height:100%;object-fit:cover;display:block}
.hot-name{text-align:center;margin-top:12px;color:#0b2f4a;font-weight:800;font-size:16px}

@media (max-width:960px){
  .hero{height:64vh;min-height:540px}
  .hero-content{left:24px;right:24px;top:50%;padding:26px 24px}
  .hero-title{font-size:36px}
  .about-grid{grid-template-columns:1fr;gap:24px}
  .about-info{margin-left:0;margin-top:-24px;padding:28px 24px}
  .about-title{font-size:26px}
  .prod-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .why-grid{grid-template-columns:1fr}
  .hot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:640px){
  .prod-grid{grid-template-columns:1fr}
  .why-card{padding:92px 18px 18px;min-height:auto}
  .why-icon{left:18px;top:18px}
  .hot-grid{grid-template-columns:1fr}
}