:root{--nav:#17142a;--nav2:#211c39;--accent:#67cfff;--accent2:#a3e4ff;--ink:#131726;--muted:#5b6375;--line:#e5ebf3;--soft:#f5f7fb;--max:1240px;--r:22px;--shadow:0 18px 40px rgba(17,19,29,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;color:#141927;background:#fff}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}iframe{border:0}button{font:inherit}.container{width:min(92%,var(--max));margin:0 auto}
.site-header{position:sticky;top:0;z-index:9999;background:linear-gradient(90deg,var(--nav),var(--nav2));color:#fff}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:12px}.brand-logo{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);padding:4px;border:1px solid rgba(255,255,255,.12);object-fit:contain}.brand-title{font-size:22px;font-weight:800}.brand-sub{font-size:12px;color:rgba(255,255,255,.72)}.main-nav{display:flex;gap:18px;flex-wrap:wrap}.main-nav a{padding:8px 12px;border-radius:999px;color:rgba(244,249,255,.84);font-size:14px;font-weight:700}.main-nav a.active,.main-nav a:hover{background:rgba(255,255,255,.12);color:#fff}.lang-btn{min-height:40px;padding:0 16px;border:none;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#fff;font-weight:700}
.hero-label,.section-tag,.mini-tag,.case-tag{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:700}.hero-label{min-height:34px;padding:0 14px;font-size:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.16);color:#fff}.section-tag,.mini-tag,.case-tag{background:#eef7ff;border:1px solid #d5ebfb;color:#1d7197}.section-tag{min-height:34px;padding:0 14px;font-size:12px}.mini-tag,.case-tag{min-height:28px;padding:0 10px;font-size:11px}
.section{padding:72px 0}.section-soft{background:var(--soft)}.section-head{margin-bottom:28px}.section-title{margin:14px 0 12px;font-size:clamp(28px,4vw,50px);line-height:1.1;letter-spacing:-.03em;color:#121525}.section-desc{max-width:820px;margin:0;color:var(--muted);font-size:17px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font-weight:700;border:1px solid #dbe4f0}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#0f2430;border:none}.btn-secondary{background:#fff;color:#1b2234}.btn-dark{background:#1c1930;color:#fff;border:1px solid rgba(255,255,255,.12)}.btn-small{min-height:38px;padding:0 15px;font-size:13px}
.hero{position:relative;min-height:78vh;overflow:hidden;color:#fff;background:#0d1222}.hero-bg{position:absolute;inset:0;background:url("assets/hero/hero-bg.png") center/cover no-repeat}.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,17,38,.82) 0%,rgba(20,17,38,.56) 38%,rgba(20,17,38,.22) 100%)}.hero-content{position:relative;z-index:2;padding:116px 0 86px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.hero-title{margin:14px 0 12px;font-size:clamp(46px,6vw,80px);line-height:1.02;letter-spacing:-.04em}.hero-desc{margin:0;color:rgba(255,255,255,.88);font-size:19px;line-height:1.75}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.hero-stat{padding:16px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}.hero-stat strong{display:block;font-size:17px;margin-bottom:6px}.hero-stat span{font-size:13px;color:rgba(255,255,255,.8);line-height:1.55}.hero-card{
  min-height:auto;
  aspect-ratio:16 / 9;
  border-radius:28px;
  overflow:hidden;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 24px 80px rgba(0,0,0,.22);
}

.hero-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center center;
}
.banner{position:relative;min-height:500px;overflow:hidden;color:#fff}.banner::before{content:"";position:absolute;inset:0;background:url("assets/hero/hero-bg.png") center/cover no-repeat}.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,17,38,.78) 0%,rgba(20,17,38,.28) 50%,rgba(20,17,38,.16) 100%)}.banner-in{position:relative;z-index:2;padding:84px 0}.banner-box{max-width:620px}.banner h2{margin:16px 0 14px;font-size:clamp(34px,5vw,62px);line-height:1.08}.banner p{margin:0;color:rgba(255,255,255,.88);line-height:1.8}.banner-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}.feature-list{display:grid;gap:12px}.feature-item,.value-card,.product-card,.video-card,.contact-card,.footer-box,.cta-box{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.feature-item{padding:18px}.feature-item strong{display:block;font-size:18px;margin-bottom:6px}.feature-item span{color:var(--muted);line-height:1.72}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.product-card{overflow:hidden}.product-image{min-height:280px;padding:28px;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#f8fbff,#edf3f8);border-bottom:1px solid var(--line)}.product-image img{max-height:220px;object-fit:contain;cursor:zoom-in}.product-body{padding:22px}.product-body h3{margin:10px 0;font-size:30px}.product-body p{margin:0 0 14px;color:var(--muted);line-height:1.78}.product-body ul{margin:0;padding-left:18px}.product-body li{margin:8px 0;color:var(--muted);line-height:1.7}
.mosaic{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}.mosaic-large,.mosaic-small{position:relative;overflow:hidden;border-radius:24px;min-height:420px;background:#dde7f1}.mosaic-right{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mosaic-small{min-height:201px}.mosaic-large img,.mosaic-small img{width:100%;height:100%;object-fit:cover}.overlay{position:absolute;left:0;right:0;bottom:0;padding:18px;background:linear-gradient(180deg,rgba(14,17,30,0) 0%,rgba(14,17,30,.78) 100%);color:#fff}.overlay strong{display:block;font-size:22px;margin-bottom:6px}.overlay span{font-size:13px;color:rgba(255,255,255,.84);line-height:1.6}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.value-card{padding:24px}.num{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#eff8ff;border:1px solid #d9edf9;color:#1d7197;font-weight:800;margin-bottom:14px}.value-card h3{margin:0 0 10px;font-size:22px}.value-card p{margin:0;color:var(--muted);line-height:1.75}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.video-card{overflow:hidden}.video-embed{position:relative;width:100%;aspect-ratio:16/9;background:#0f1320}.video-body{padding:20px}.video-title{margin:10px 0 8px;font-size:24px}.video-text{margin:0;color:var(--muted);line-height:1.72}.video-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px}.contact-card{padding:26px}.contact-line{padding:14px 0;border-bottom:1px solid #e8edf4;color:var(--muted);line-height:1.75}.contact-line:last-child{border-bottom:none}.contact-line strong{display:block;color:#162032;margin-bottom:4px}.cta-box{padding:32px;display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:center;background:linear-gradient(135deg,#edf7ff,#f8fbff);border:1px solid #dcecf8}.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.site-footer{background:linear-gradient(90deg,var(--nav),var(--nav2));color:#fff;padding:38px 0 46px}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}.footer-title{font-size:22px;font-weight:800;margin-bottom:10px}.footer-text,.footer-copy,.footer-line{color:rgba(255,255,255,.78);line-height:1.8}.footer-copy{margin-top:10px;font-size:14px}.footer-box{padding:22px;border-radius:22px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10)}.footer-line{margin-top:8px}
.image-lightbox,.wechat-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(7,10,20,.82);padding:30px;z-index:99999}.image-lightbox.open,.wechat-modal.open{display:flex}.image-lightbox-img{max-width:min(96vw,1200px);max-height:88vh;object-fit:contain;border-radius:18px;background:#fff}.image-lightbox-close,.wechat-modal-close{position:absolute;top:18px;right:18px;width:48px;height:48px;border:none;border-radius:999px;background:rgba(255,255,255,.10);color:#fff;font-size:30px;cursor:pointer}.wechat-modal-dialog{position:relative;width:min(92vw,760px);padding:30px 26px 24px;border-radius:30px;background:#fff;box-shadow:0 30px 90px rgba(0,0,0,.22);text-align:center}.wechat-modal-dialog h3{margin:16px 0 10px;font-size:42px;line-height:1.12;color:#131826}.wechat-modal-dialog p{margin:0 0 18px;color:var(--muted);line-height:1.8;font-size:18px}.wechat-modal-qr{width:min(66vw,400px);aspect-ratio:1/1;margin:0 auto;object-fit:contain;background:#f8fafc;border-radius:20px;padding:12px;border:1px solid #e4ebf3}
@media (max-width:1100px){.hero-grid,.grid-2,.contact-grid,.footer-grid,.cta-box{grid-template-columns:1fr}.value-grid,.video-grid{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:1fr}.mosaic{grid-template-columns:1fr}.cta-actions{justify-content:flex-start}}
@media (max-width:760px){.header-inner{min-height:auto;padding:12px 0;flex-direction:column;align-items:flex-start;gap:12px}.brand-logo{width:34px;height:34px}.brand-title{font-size:16px}.brand-sub{font-size:10px}.main-nav{gap:10px 12px}.main-nav a{min-height:36px;font-size:12px;padding:6px 10px}.lang-btn{min-height:38px;font-size:12px}.section{padding:42px 0}.section-title{font-size:24px;line-height:1.18}.section-desc,.video-text,.footer-text,.footer-copy,.footer-line,.contact-line,.hero-desc{font-size:13px;line-height:1.7}.hero{min-height:62vh}.hero-content{padding:58px 0 38px}.hero-title{font-size:32px;line-height:1.06}.hero-actions,.banner-actions{flex-direction:column;gap:8px}.btn{width:100%;min-height:42px;font-size:14px}.hero-stats{grid-template-columns:1fr;gap:10px}.hero-card{
  min-height:auto;
  aspect-ratio:16 / 9;
}
.value-grid,.video-grid,.mosaic-right,.footer-grid{grid-template-columns:1fr}.product-image{min-height:220px;padding:18px}.product-image img{max-height:160px}.product-body,.video-body,.contact-card,.cta-box{padding:16px}.product-body h3{font-size:22px}.video-title{font-size:20px}.wechat-modal-dialog{width:min(92vw,400px);padding:22px 16px 18px}.wechat-modal-dialog h3{font-size:24px}.wechat-modal-dialog p{font-size:13px}.wechat-modal-qr{width:min(78vw,280px)}}
/* 首页案例导流区 */
.home-case-cta{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:24px;
  align-items:center;
  padding:32px;
  border-radius:28px;
  background:linear-gradient(135deg,#eef8ff,#f8fbff);
  border:1px solid #dcecf8;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
}

.home-case-cta-copy h3{
  margin:0 0 12px;
  font-size:32px;
  line-height:1.15;
  color:#131726;
}

.home-case-cta-copy p{
  margin:0;
  color:#5b6375;
  font-size:16px;
  line-height:1.85;
}

.home-case-cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

/* 手机端 */
@media (max-width:1100px){
  .home-case-cta{
    grid-template-columns:1fr;
  }

  .home-case-cta-actions{
    justify-content:flex-start;
  }
}

@media (max-width:760px){
  .home-case-cta{
    padding:18px;
    gap:16px;
  }

  .home-case-cta-copy h3{
    font-size:22px;
  }

  .home-case-cta-copy p{
    font-size:13px;
    line-height:1.7;
  }
}
/* 首页精简版 */
.hero-home-clean .hero-card img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.company-intro-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:28px;
  align-items:center;
}

.company-intro-image{
  background:#fff;
  border:1px solid #e5ebf3;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
  overflow:hidden;
}

.company-intro-image img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.intro-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:24px;
}

.home-entry-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

.home-entry-card{
  display:block;
  padding:26px;
  background:#fff;
  border:1px solid #e5ebf3;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
  transition:.2s ease;
}

.home-entry-card:hover{
  transform:translateY(-3px);
  box-shadow:0 22px 44px rgba(17,19,29,.12);
}

.home-entry-tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:28px;
  padding:0 10px;
  border-radius:999px;
  background:#eef7ff;
  border:1px solid #d5ebfb;
  color:#1d7197;
  font-size:11px;
  font-weight:700;
  margin-bottom:14px;
}

.home-entry-card h3{
  margin:0 0 10px;
  font-size:28px;
  color:#121525;
}

.home-entry-card p{
  margin:0 0 18px;
  color:#5b6375;
  line-height:1.8;
  font-size:15px;
}

.home-entry-link{
  color:#1d7197;
  font-weight:700;
  font-size:14px;
}

/* 响应式 */
@media (max-width:1100px){
  .company-intro-grid,
  .home-entry-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width:760px){
  .intro-actions{
    flex-direction:column;
    gap:8px;
  }

  .home-entry-card{
    padding:18px;
  }

  .home-entry-card h3{
    font-size:22px;
  }

  .home-entry-card p{
    font-size:13px;
    line-height:1.7;
  }
}
/* ===== 中英文切换 ===== */
.lang-en,
.lang-zh{
  display:inline;
}

html[lang-mode="zh"] .lang-en{
  display:none !important;
}

html[lang-mode="en"] .lang-zh{
  display:none !important;
}

/* 企业简介文字版 */
.company-intro-text-only{
  max-width: 980px;
}

.company-intro-copy{
  background:#fff;
  border:1px solid #e5ebf3;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
  padding:34px;
}

.company-intro-copy .section-desc{
  max-width:100%;
}

.intro-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:24px;
}

/* 让按钮里的中英文不换行过碎 */
.lang-btn{
  white-space:nowrap;
}

/* 手机端 */
@media (max-width:760px){
  .company-intro-copy{
    padding:20px 18px;
  }

  .intro-actions{
    flex-direction:column;
    gap:8px;
  }
}
/* ===== bilingual ===== */
.lang-en,.lang-zh{display:inline}
html[lang-mode="zh"] .lang-en{display:none !important}
html[lang-mode="en"] .lang-zh{display:none !important}

/* ===== home hero factory image fix ===== */
.hero-card-factory{
  min-height:auto !important;
  aspect-ratio:16 / 9 !important;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.hero-card-factory img{
  width:100%;
  height:100%;
  object-fit:contain !important;
  object-position:center center !important;
  background:#0b1020;
}

/* ===== home intro ===== */
.company-intro-text-only{
  max-width:980px;
}
.company-intro-copy{
  background:#fff;
  border:1px solid #e5ebf3;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
  padding:34px;
}
.company-intro-copy .section-desc{
  max-width:100%;
}
.intro-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:24px;
}

/* ===== home entry cards ===== */
.home-entry-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.home-entry-card{
  display:block;
  padding:26px;
  background:#fff;
  border:1px solid #e5ebf3;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(17,19,29,.08);
  transition:.2s ease;
}
.home-entry-card:hover{
  transform:translateY(-3px);
  box-shadow:0 22px 44px rgba(17,19,29,.12);
}
.home-entry-tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:28px;
  padding:0 10px;
  border-radius:999px;
  background:#eef7ff;
  border:1px solid #d5ebfb;
  color:#1d7197;
  font-size:11px;
  font-weight:700;
  margin-bottom:14px;
}
.home-entry-card h3{
  margin:0 0 10px;
  font-size:28px;
  color:#121525;
}
.home-entry-card p{
  margin:0 0 18px;
  color:#5b6375;
  line-height:1.8;
  font-size:15px;
}
.home-entry-link{
  color:#1d7197;
  font-weight:700;
  font-size:14px;
}

/* ===== products slider ===== */
.product-slider-wrap{
  position:relative;
  padding:0 64px;
}
.product-slider{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-behavior:smooth;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.product-slider::-webkit-scrollbar{
  display:none;
}
.product-slide-card{
  min-width:420px;
  flex:0 0 420px;
}
.product-slider-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:50px;
  height:50px;
  border:none;
  border-radius:999px;
  background:#1d1b31;
  color:#fff;
  font-size:30px;
  cursor:pointer;
  z-index:5;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}
.product-slider-btn.prev{left:0}
.product-slider-btn.next{right:0}

/* ===== cases video cover ratio ===== */
.video-card{
  overflow:hidden;
}
.video-embed{
  position:relative;
  width:100%;
  aspect-ratio:16 / 9 !important;
  background:#0f1320;
  overflow:hidden;
}
.video-embed iframe{
  width:100%;
  height:100%;
  display:block;
}

/* ===== responsive ===== */
@media (max-width:1100px){
  .home-entry-grid{
    grid-template-columns:1fr;
  }
  .product-slide-card{
    min-width:360px;
    flex:0 0 360px;
  }
}

@media (max-width:760px){
  .company-intro-copy{
    padding:20px 18px;
  }

  .intro-actions{
    flex-direction:column;
    gap:8px;
  }

  .home-entry-card{
    padding:18px;
  }

  .home-entry-card h3{
    font-size:22px;
  }

  .home-entry-card p{
    font-size:13px;
    line-height:1.7;
  }

  .product-slider-wrap{
    padding:0 42px;
  }

  .product-slide-card{
    min-width:82vw;
    flex:0 0 82vw;
  }

  .product-slider-btn{
    width:40px;
    height:40px;
    font-size:24px;
  }

  .hero-card-factory{
    aspect-ratio:16 / 9 !important;
  }
}
/* ===== 首页厂区图卡片微调 ===== */
.hero-card-factory{
  background:linear-gradient(180deg,#10192a,#0d1422) !important;
}

.hero-card-factory img{
  object-fit:contain !important;
  object-position:center center !important;
  background:transparent !important;
  padding:14px;
}

/* ===== 产品页滑屏区修正 ===== */
.product-slider-wrap{
  position:relative;
  padding:0 56px;
  overflow:hidden;
}

.product-slider{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-behavior:smooth;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding-bottom:8px;
}

.product-slider::-webkit-scrollbar{
  display:none;
}

.product-slide-card{
  min-width:calc((100% - 48px) / 3);
  flex:0 0 calc((100% - 48px) / 3);
}

.product-slider-btn{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:46px;
  height:46px;
  border:none;
  border-radius:999px;
  background:#1d1b31;
  color:#fff;
  font-size:28px;
  cursor:pointer;
  z-index:10;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}

.product-slider-btn.prev{
  left:0;
}

.product-slider-btn.next{
  right:0;
}

.product-slide-card .product-image{
  min-height:270px;
}

.product-slide-card .product-body{
  min-height:190px;
}

/* ===== 案例页视频卡片再统一一点 ===== */
.video-card{
  display:flex;
  flex-direction:column;
}

.video-embed{
  width:100%;
  aspect-ratio:16 / 9 !important;
  background:#0f1320;
  overflow:hidden;
}

.video-embed iframe{
  width:100%;
  height:100%;
  display:block;
}

.video-body{
  flex:1;
}

/* ===== 平板 ===== */
@media (max-width:1100px){
  .product-slide-card{
    min-width:calc((100% - 24px) / 2);
    flex:0 0 calc((100% - 24px) / 2);
  }
}

/* ===== 手机 ===== */
@media (max-width:760px){
  .hero-card-factory img{
    padding:10px;
  }

  .product-slider-wrap{
    padding:0 40px;
  }

  .product-slide-card{
    min-width:82vw;
    flex:0 0 82vw;
  }

  .product-slider-btn{
    width:40px;
    height:40px;
    font-size:24px;
  }

  .product-slide-card .product-image{
    min-height:220px;
  }

  .product-slide-card .product-body{
    min-height:auto;
  }
}