/* ============ Base ============ */
:root{
  --orange:#eb6100;
  --orange-dark:#c95200;
  --dark:#1d1d1f;
  --dark-2:#2a2a2d;
  --dark-3:#333336;
  --gray-bg:#f6f6f6;
  --light:#ffffff;
  --text:#222;
  --text-gray:#666;
  --border:#e6e6e6;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Helvetica Neue",Helvetica,Arial,"Microsoft YaHei",sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.6;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ Header (two-row: logo + language / navbar) ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--dark);
  box-shadow:0 2px 8px rgba(0,0,0,.25);
}
.header-top{background:var(--dark);}
.header-top-inner{
  max-width:1280px;margin:0 auto;padding:24px 24px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.header-top-right{flex:none;display:flex;align-items:center;}
.header-navbar{background:var(--dark-2);border-top:1px solid #3a3a3e;}
.header-navbar-inner{
  max-width:1280px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;min-height:52px;
}
.lang-switch{display:flex;align-items:center;gap:12px;}
.lang-switch-title{font-size:11px;color:#aaa;letter-spacing:1.5px;text-transform:uppercase;white-space:nowrap;}
.lang-switch-select{padding:7px 12px;font-size:13px;color:#222;background:#fff;border:1px solid rgba(255,255,255,.25);border-radius:4px;cursor:pointer;outline:none;min-width:130px;transition:border-color .18s ease,box-shadow .18s ease;}
.lang-switch-select:hover,.lang-switch-select:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(235,97,0,.15);}
.lang-switch-select option{font-size:13px;color:#333;background:#fff;}
.lang-switch-edit{margin-left:0;display:block;width:100%;}
@media (max-width:768px){.lang-switch-title{display:none;}}
.logo{display:flex;flex-direction:column;line-height:1.1;}
.logo .logo-name{
  font-size:26px;font-weight:800;color:#fff;letter-spacing:1px;
}
.logo .logo-name sup{font-size:11px;font-weight:400;color:#bbb;top:-.8em;}
.logo .logo-sub{font-size:11px;color:#ff9a4d;letter-spacing:1.5px;text-transform:uppercase;}
/* Logo image (headerLogo editable): keeps the same visual height as the old text logo */
.logo .logo-img{display:block;height:44px;width:auto;max-width:280px;object-fit:contain;margin-left:18px;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{
  display:block;padding:14px 18px;color:#e8e8e8;font-size:14px;font-weight:600;
  letter-spacing:.8px;text-transform:uppercase;border-radius:4px;transition:color .2s,background .2s;
}
.main-nav > ul > li > a:hover{color:#fff;background:var(--dark-3);}
.main-nav > ul > li.has-drop > a::after{
  content:"▾";margin-left:6px;font-size:11px;color:#ff9a4d;
}
/* dropdown */
.dropdown{
  position:absolute;top:100%;left:0;min-width:560px;
  background:#fff;border:1px solid var(--border);border-top:3px solid var(--orange);
  box-shadow:0 12px 30px rgba(0,0,0,.14);border-radius:0 0 6px 6px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .22s ease;padding:18px 6px 14px;z-index:100;
}
.main-nav > ul > li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown .group{padding:0 16px 10px;}
.dropdown .group-title{
  font-size:13px;font-weight:800;color:var(--orange);letter-spacing:.5px;
  padding-bottom:6px;border-bottom:1px solid #f0f0f0;margin-bottom:8px;
}
.dropdown .group ul{display:flex;flex-wrap:wrap;gap:2px;}
.dropdown .group ul li{flex:1 1 45%;}
.dropdown .group ul li a{
  display:block;padding:5px 8px;font-size:13.5px;color:var(--text);
  border-radius:3px;transition:background .15s,color .15s;
}
.dropdown .group ul li a:hover{background:#fff3ea;color:var(--orange);}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px;}
.nav-toggle span{width:24px;height:3px;background:#fff;border-radius:2px;}

/* mobile nav */
.mobile-nav{
  display:none;background:var(--dark-2);border-top:1px solid #3a3a3e;
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.mobile-nav.open{max-height:560px;overflow-y:auto;}
.mobile-nav a{
  display:block;padding:12px 24px;color:#e8e8e8;font-size:15px;border-bottom:1px solid #333;
}
.mobile-nav .m-group{padding:10px 24px;background:var(--dark-3);}
.mobile-nav .m-group-title{font-size:13px;font-weight:700;color:var(--orange);margin-bottom:4px;}
.mobile-nav .m-group a{display:inline-block;padding:6px 10px;font-size:13.5px;color:#ccc;border:none;}

/* ============ Hero Slider ============ */
.hero{position:relative;width:100%;background:var(--dark);overflow:hidden;}
.hero-slider{position:relative;width:100%;aspect-ratio:1920/780;}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;pointer-events:none;}
.hero-slide.active{opacity:1;pointer-events:auto;}
.hero-slide img{width:100%;height:100%;object-fit:cover;}
.hero-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:10;
  width:52px;height:52px;border-radius:50%;border:2px solid rgba(255,255,255,.7);
  background:rgba(0,0,0,.25);color:#fff;font-size:26px;line-height:46px;text-align:center;
  cursor:pointer;transition:background .2s;user-select:none;
}
.hero-arrow:hover{background:var(--orange);border-color:var(--orange);}
.hero-arrow.prev{left:24px;}
.hero-arrow.next{right:24px;}
.hero-dots{position:absolute;bottom:18px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:10;}
.hero-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:background .2s,transform .2s;}
.hero-dots span.active{background:var(--orange);transform:scale(1.2);}

/* ============ Section common ============ */
.section{padding:64px 0;}
.section-title{
  text-align:center;font-size:34px;font-weight:800;letter-spacing:2px;color:var(--text);
}
.section-title.orange{color:var(--orange);}
.section-sub{text-align:center;color:var(--text-gray);max-width:900px;margin:14px auto 0;font-size:15px;}

/* ============ 最新产品 ============ */
.latest-product{background:#fff;padding:60px 0 70px;}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:40px;}
.product-card{
  background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden;
  transition:box-shadow .25s,transform .25s;
}
.product-card:hover{box-shadow:0 12px 30px rgba(0,0,0,.12);transform:translateY(-4px);}
.product-img{position:relative;background:var(--gray-bg);overflow:hidden;}
.product-img img{width:100%;height:auto;transition:transform .4s;}
.product-card:hover .product-img img{transform:scale(1.04);}
.product-info{padding:18px 20px 22px;text-align:center;}
.product-name{font-size:16px;font-weight:700;color:var(--text);min-height:44px;display:flex;align-items:center;justify-content:center;}
.btn-more{
  display:inline-block;margin-top:14px;padding:9px 30px;border-radius:4px;
  background:var(--orange);color:#fff;font-size:14px;font-weight:700;letter-spacing:1px;
  transition:background .2s;
}
.btn-more:hover{background:var(--orange-dark);}

/* ============ 通用工具 ============ */
.general-tools{background:var(--gray-bg);padding:60px 0 70px;}
.general-tools .container{max-width:1360px;}
.tools-row{display:flex;gap:24px;margin-top:36px;align-items:stretch;}
.tools-row + .tools-row{margin-top:34px;}
.lineart{
  flex:0 0 16%;background:#fff;border:1px solid var(--border);border-radius:10px;
  display:flex;align-items:center;justify-content:center;padding:16px;min-height:320px;
}
.lineart img{width:100%;height:auto;filter:brightness(.2);opacity:.85;}
.carousel{flex:1;position:relative;overflow:hidden;background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px 12px 52px;}
.carousel-track{display:flex;transition:transform .5s ease;}
.carousel-item{flex:0 0 33.3333%;padding:0 10px;}
.carousel-item a{display:block;background:var(--gray-bg);border-radius:8px;overflow:hidden;border:1px solid #f0f0f0;transition:box-shadow .25s;}
.carousel-item a:hover{box-shadow:0 8px 20px rgba(0,0,0,.12);}
.carousel-item img{width:100%;height:auto;}
.carousel-item .c-name{text-align:center;padding:12px 8px;font-size:14.5px;font-weight:700;color:var(--text);}
.carousel-nav{
  position:absolute;bottom:10px;left:0;right:0;display:flex;align-items:center;justify-content:center;gap:16px;
}
.carousel-dots{display:flex;gap:7px;}
.carousel-dots span{width:9px;height:9px;border-radius:50%;background:#d0d0d0;cursor:pointer;transition:background .2s;}
.carousel-dots span.active{background:var(--orange);}
.carousel-btn{
  width:34px;height:34px;border-radius:50%;background:#fff;border:1px solid var(--border);
  color:var(--orange);font-size:18px;line-height:30px;text-align:center;cursor:pointer;transition:all .2s;
}
.carousel-btn:hover{background:var(--orange);color:#fff;border-color:var(--orange);}

/* ============ 按应用场景选工具 ============ */
.by-applications{
  background:linear-gradient(160deg,#1c1c1e 0%,#26262a 55%,#2f2f33 100%);
  padding:70px 0;
}
.by-applications .section-title{color:#fff;}
.by-applications .section-sub{color:#c9c9cd;}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:44px;}
.app-card{
  background:#fff;border-radius:10px;overflow:hidden;cursor:pointer;
  box-shadow:0 8px 24px rgba(0,0,0,.35);transition:transform .25s,box-shadow .25s;
}
.app-card:hover{transform:translateY(-6px);box-shadow:0 16px 34px rgba(0,0,0,.45);}
.app-card .app-img{height:300px;overflow:hidden;}
.app-card .app-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s;}
.app-card:hover .app-img img{transform:scale(1.06);}
.app-card .app-label{
  padding:15px 18px;font-size:17px;font-weight:800;color:var(--text);
  border-top:3px solid var(--orange);display:flex;justify-content:space-between;align-items:center;
}
.app-card .app-label .arr{color:var(--orange);}

/* ============ 全球销售网络 ============ */
.distribution{background:#fff;padding:60px 0 70px;}
.distribution .section-title{color:var(--orange);}
.world-map{max-width:1060px;margin:40px auto 0;border-radius:10px;}
.world-map img{width:100%;height:auto;border-radius:10px;}

/* ============ 专业工具供应商 ============ */
.provider{
  background:linear-gradient(135deg,#141414 0%,#222226 100%);
  padding:80px 0;
}
.provider-inner{max-width:880px;margin:0 auto;text-align:center;}
.provider .section-title{color:var(--orange);}
.provider .section-sub{color:#cfcfd3;font-size:16px;line-height:1.9;}
.provider .btn-more{margin-top:28px;}
.provider-video{
  max-width:760px;margin:44px auto 0;border-radius:12px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.55);border:1px solid #3a3a3e;position:relative;cursor:pointer;
}
.provider-video img{width:100%;height:auto;}
.provider-video .play-cover{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.25);
}
.provider-video .play-cover span{
  width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.92);display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(0,0,0,.3);transition:transform .2s;
}
.provider-video:hover .play-cover span{transform:scale(1.1);}
.provider-video .play-cover span::after{
  content:"";width:0;height:0;border-left:22px solid var(--orange);border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:5px;
}

/* ============ 数字展厅 ============ */
.showroom{background:var(--gray-bg);padding:64px 0;}
.showroom .section-title{color:var(--orange);}
.showroom-visual{
  max-width:860px;margin:40px auto 0;position:relative;border-radius:12px;overflow:hidden;
  box-shadow:0 16px 44px rgba(0,0,0,.15);border:1px solid var(--border);cursor:pointer;
}
.showroom-visual img{width:100%;height:auto;}
.showroom-visual .play-cover{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.18);
}
.showroom-visual .play-cover span{
  width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.95);display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(0,0,0,.28);transition:transform .2s;
}
.showroom-visual:hover .play-cover span{transform:scale(1.12);}
.showroom-visual .play-cover span::after{
  content:"";width:0;height:0;border-left:20px solid var(--orange);border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px;
}

/* ============ 最新动态 ============ */
.events{background:#fff;padding:64px 0 72px;}
.events .section-title{color:var(--orange);}
.events-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:44px;}
.event-card{
  border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff;
  transition:box-shadow .25s,transform .25s;
}
.event-card:hover{box-shadow:0 12px 28px rgba(0,0,0,.12);transform:translateY(-4px);}
.event-card .e-img{height:210px;overflow:hidden;background:var(--gray-bg);}
.event-card .e-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.event-card:hover .e-img img{transform:scale(1.05);}
.event-card .e-body{padding:20px 22px 24px;}
.event-card h3{font-size:19px;font-weight:800;color:var(--text);margin-bottom:10px;line-height:1.4;}
.event-card p{font-size:13.5px;color:var(--text-gray);line-height:1.85;}
.event-card .e-link{display:inline-block;margin-top:14px;color:var(--orange);font-weight:700;font-size:14px;}
.event-card .e-link:hover{text-decoration:underline;}
.event-card ul.e-list{margin-top:8px;}
.event-card ul.e-list li{font-size:13.5px;color:var(--text-gray);line-height:1.8;position:relative;padding-left:14px;}
.event-card ul.e-list li::before{content:"—";position:absolute;left:0;color:var(--orange);}
.event-card ul.e-list li.has-icon{padding-left:0;}
.event-card ul.e-list li.has-icon::before{content:none;}
.event-card ul.e-list li .e-li-icon{display:inline-block;width:24px;height:24px;vertical-align:-5px;margin-right:6px;overflow:hidden;border-radius:3px;background:var(--gray-bg);}
.event-card ul.e-list li .e-li-icon img{width:100%;height:100%;object-fit:cover;display:block;}

/* ============ Footer ============ */
.site-footer{background:var(--dark);color:#c9c9cd;padding:56px 0 0;}
.footer-top{max-width:1080px;margin:0 auto;padding:0 24px;text-align:center;}
.footer-logo{max-width:340px;margin:0 auto 34px;}
.footer-logo img{width:100%;height:auto;}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;max-width:860px;margin:0 auto;text-align:left;}
.contact-card{
  display:flex;align-items:flex-start;gap:14px;padding:16px 18px;
  border:1px solid #3c3c40;border-radius:8px;background:#242427;
}
.contact-card .c-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:50%;background:var(--orange);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;
}
.contact-card .c-label{font-size:12px;color:#8f8f95;text-transform:uppercase;letter-spacing:1px;}
.contact-card .c-value{font-size:15px;color:#f2f2f4;font-weight:600;margin-top:2px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid #35353a;background:#161618;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
}
.footer-bottom .keep{font-size:14px;letter-spacing:2px;color:#e8e8e8;font-weight:700;}
.btn-join{
  display:inline-block;padding:10px 34px;border-radius:4px;background:var(--orange);color:#fff;
  font-size:14px;font-weight:800;letter-spacing:2px;transition:background .2s;
}
.btn-join:hover{background:var(--orange-dark);}
.footer-copy{max-width:1080px;margin:0 auto;padding:18px 24px 26px;font-size:12px;color:#7c7c82;text-align:center;}

/* ============ Floating widgets ============ */
.float-join{
  position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:900;
  writing-mode:vertical-rl;background:var(--orange);color:#fff;padding:16px 8px;
  font-size:14px;font-weight:800;letter-spacing:3px;cursor:pointer;border-radius:8px 0 0 8px;
  box-shadow:-4px 0 14px rgba(0,0,0,.2);transition:background .2s;
}
.float-join:hover{background:var(--orange-dark);}
.float-badge{
  position:fixed;right:22px;bottom:96px;z-index:900;width:64px;height:64px;border-radius:50%;
  background:var(--dark);border:3px solid var(--orange);color:var(--orange);
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  font-size:9px;font-weight:800;line-height:1.2;letter-spacing:.5px;cursor:pointer;
  box-shadow:0 8px 22px rgba(0,0,0,.35);
}
.float-chat{
  position:fixed;right:26px;bottom:26px;z-index:900;width:56px;height:56px;border-radius:50%;
  background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:0 8px 22px rgba(235,97,0,.45);font-size:24px;
}
.float-chat .dot{position:absolute;top:-2px;right:-2px;width:18px;height:18px;border-radius:50%;background:#e53935;color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:800;}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .mobile-nav{display:block;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .tools-row{flex-direction:column;}
  .lineart{flex:auto;min-height:0;}
  .app-grid{grid-template-columns:repeat(2,1fr);}
  .events-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .section{padding:44px 0;}
  .product-grid{grid-template-columns:1fr;}
  .app-grid{grid-template-columns:1fr;}
  .carousel-item{flex:0 0 50%;}
  .hero-arrow{width:40px;height:40px;line-height:36px;font-size:20px;}
  .section-title{font-size:26px;}
  .logo .logo-img{height:36px;max-width:200px;margin-left:0;}
}

/* Bootstrap Icons in footer contact cards */
.contact-card .c-icon .bi{font-size:19px;line-height:1;}.contact-card .c-icon-edit{flex:0 0 auto;min-width:220px;padding:2px 0;}