﻿/* AVCO Medical Cart Website Styles */

:root{--primary:#00C8F0;--primary-light:#00E5FF;--primary-dark:#0077B6;--accent:#00E5FF;--text:#E8EDF5;--text-light:#B8C4D4;--text-muted:#6B7A8E;--bg:#080C14;--bg-light:#0D1520;--bg-secondary:#0F1A28;--bg-card:#111C2D;--bg-hover:#162035;--border:#1A2740;--radius:12px;--shadow:0 4px 20px rgba(0,0,0,0.4);--shadow-lg:0 8px 36px rgba(0,0,0,0.5);font-family:'Noto Sans SC','Inter',-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:110px}
body{color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#0A0E1A;border-bottom:1px solid rgba(255,255,255,0.06);box-shadow:0 2px 20px rgba(0,0,0,0.3)}
.header-inner{height:100px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo-icon{display:flex;align-items:center;gap:8px}
.logo-icon img{height:70px;width:auto}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav-link{padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,0.8);border-radius:8px;transition:all 0.2s;white-space:nowrap}
.nav-link:hover,.nav-link.active,.nav-link.spy-active{color:#fff;background:#0077B6}
.lang-switch{display:flex;align-items:center;gap:6px;flex-shrink:0}
.lang-btn{background:none;border:none;cursor:pointer;font-size:14px;font-weight:500;color:rgba(255,255,255,0.6);padding:4px 8px;border-radius:6px;transition:all 0.2s}
.lang-btn:hover,.lang-btn.active{color:#fff;background:rgba(255,255,255,0.12)}
.lang-divider{color:rgba(255,255,255,0.2)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.mobile-toggle span{width:22px;height:2px;background: var(--bg)border-radius:2px;transition:all 0.3s}

/* Hero Carousel */
.hero-carousel{position:relative;margin-top:100px;height:520px;overflow:hidden;background:transparent!important}
.carousel-slides{position:relative;width:100%;height:100%}
.carousel-slide{position:absolute;top:0;left:0;width:100%;height:100%;display:none;z-index:1}
.carousel-slide.active{display:block}
.slide-bg{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:flex-end;padding-right:60px;background:transparent!important}
.slide-img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:0.85;z-index:1}
.slide-content{position:relative;z-index:2;display:flex;align-items:center;height:520px;padding-top:40px;background:transparent}
.slide-content::before{content:'';position:absolute;top:0;left:-60px;width:55%;height:100%;background:linear-gradient(to right,rgba(13,27,42,0.97),rgba(13,27,42,0.85));z-index:-1}
.hero-badge{display:inline-block;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:20px;margin-bottom:20px;letter-spacing:0.5px}
.hero-title{font-size:48px;font-weight:800;line-height:1.2;color:#fff;margin-bottom:20px;text-shadow:0 4px 12px rgba(0,0,0,0.5)}
.hero-title .highlight{color:var(--primary-light)}
.hero-desc{font-size:18px;color:rgba(255,255,255,0.9);margin-bottom:32px;max-width:560px;line-height:1.7;text-shadow:0 2px 8px rgba(0,0,0,0.4)}
.hero-actions{display:flex;gap:16px}
.btn{padding:12px 28px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:all 0.3s;border:2px solid transparent;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border-color:var(--primary)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,119,182,0.35)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background: var(--bg)border:none;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,0.15);transition:all 0.2s}
.carousel-arrow:hover{background: var(--bg)transform:translateY(-50%) scale(1.08);box-shadow:0 6px 24px rgba(0,0,0,0.25)}
.carousel-prev{left:24px}.carousel-next{right:24px}
.carousel-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.carousel-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.carousel-nav-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.4);border:none;cursor:pointer;transition:all 0.3s}
.carousel-nav-dot:hover{background:rgba(255,255,255,0.7)}
.carousel-nav-dot.active{background: var(--bg)width:28px;border-radius:5px}

/* Stats Bar */
.stats-bar{background:#0A0E1A;border-bottom:1px solid rgba(255,255,255,0.06);padding:0;box-shadow:0 2px 12px rgba(0,0,0,0.15)}
.hero-stats{display:flex;align-items:center;justify-content:center;padding:28px 0;gap:0}
.stat-item{display:flex;flex-direction:column;align-items:center;padding:0 48px}
.stat-num{font-size:36px;font-weight:800;color:#00B4D8;font-family:'Inter',sans-serif;line-height:1}
.stat-label{font-size:14px;color:rgba(255,255,255,0.7);margin-top:4px;font-weight:500}
.stat-divider{width:1px;height:40px;background:rgba(255,255,255,0.15)}

/* Sections */
.section{padding:80px 0;background:var(--bg)}
.section-header{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:48px;position:relative}
.section-header .section-tag{grid-column:1/-1;justify-self:center;margin-bottom:4px}
.section-header .section-title{text-align:right;margin-bottom:0}
.section-header .section-title::after{margin:14px auto 0 0}
.section-header .section-desc{text-align:left;margin:0}
.section-header::before{content:'';display:block;position:absolute;top:0;left:50%;transform:translateX(-50%);width:40px;height:2px;background:linear-gradient(90deg,transparent,#0077B6,transparent);border-radius:1px}
.section-tag{display:inline-block;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;font-size:11px;font-weight:800;padding:6px 20px;border-radius:20px;margin-bottom:18px;letter-spacing:2px;text-transform:uppercase;box-shadow:0 4px 12px rgba(0,119,182,0.3)}
.section-title{font-size:36px;font-weight:900;background:linear-gradient(135deg,var(--text),#1E293B);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:12px;position:relative;display:inline-block;letter-spacing:-0.5px;line-height:1.3}
.section-title::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#0077B6,#00B4D8);border-radius:2px;margin:14px auto 0;transition:width 0.3s ease}
.section-title:hover::after{width:90px}
.section-desc{font-size:16px;color:var(--text-muted);max-width:420px;line-height:1.7;font-weight:400}

/* Product Grid */
/* Product Grid �?3 columns, fully responsive */
.product-grid{
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  gap: 24px !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}
.product-card{
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s;
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100% !important;
  min-width: 0 !important;
  max-width: 100% !important;
  flex: 1 1 0%;
  /* Grid items shrink/grow equally to fill 3 columns */
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-img-wrap{
  position: relative;
  height: 260px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 20px;
  cursor: pointer;
  flex-shrink: 0;
}
.card-img-stack{
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-img-stack img{
  position: absolute;
  max-width: 100%;
  max-height: 220px;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.card-img-stack img.active{opacity:1;z-index:1}
.card-num{
  position: absolute;
  top: 12px;
  left: 16px;
  font-size: 48px;
  font-weight: 800;
  color: rgba(0,119,182,0.08);
  font-family: 'Inter', sans-serif;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
}
.card-body{
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:6px}
.card-sub{font-size:14px;color:var(--text-muted);margin-bottom:16px}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;background:var(--bg-light);color:var(--text-light);font-size:12px;font-weight:500;padding:4px 12px;border-radius:20px;border:1px solid var(--border);transition:all 0.2s}
.tag-link .tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);cursor:pointer}
.tag-link{transition:all 0.3s ease;position:relative}
.tag-link.active{background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff!important;transform:scale(1.05);box-shadow:0 4px 15px rgba(0,119,182,0.4);border-color:transparent!important}
.tag-link.active .tag{color:#fff!important;font-weight:700;background:transparent!important;border-color:transparent!important}
/* Sub-product background highlight */
.card-img-wrap .main-img[src*="/sub/"]{background:linear-gradient(135deg,#F0F7FF,rgba(0,200,240,0.12))!important;padding:12px!important;border-radius:8px!important}
.card-img-wrap:hover .main-img{transform:scale(1.08)}
.card-img-wrap::after{content:attr(data-hint);position:absolute;bottom:6px;right:10px;background:rgba(0,0,0,0.55);color:#fff;font-size:10px;padding:2px 8px;border-radius:4px;opacity:0;transition:opacity 0.3s}
.card-img-wrap:hover::after{opacity:1}
.card-img-stack img.active{opacity:1;z-index:1}
.card-img-wrap .main-img{transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);background:transparent;border-radius:8px}
.card-img-wrap .main-img[src*="/sub/"]{background:linear-gradient(135deg,#F0F7FF,rgba(0,200,240,0.12));padding:12px}
.card-img-wrap:hover .main-img{transform:scale(1.15);filter:drop-shadow(0 8px 24px rgba(0,119,182,0.2))}
.card-img-wrap::after{content:attr(data-hint);position:absolute;bottom:6px;right:10px;background:rgba(0,0,0,0.55);color:#fff;font-size:10px;padding:2px 8px;border-radius:4px;opacity:0;transition:opacity 0.3s}
.card-img-wrap:hover::after{opacity:1}

/* About Section */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.about-text .section-tag{margin-bottom:12px}
.about-text .section-title{margin-bottom:20px;text-align:left}
.about-text .section-title::after{margin:14px 0 0}
.about-text>p{color:var(--text-light);line-height:1.6;margin-bottom:16px;font-size:14px}
.about-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.about-feat{display:flex;align-items:flex-start;gap:14px;padding:16px;background:var(--bg-light);border-radius:10px;border:1px solid var(--border)}
.about-feat-icon{flex-shrink:0;width:44px;height:44px;background: var(--bg)border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,0.3)}
.about-feat-text h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.about-feat-text p{font-size:13px;color:var(--text-muted)}
.about-nums{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.about-num-item{background:linear-gradient(135deg,#f0f9ff,#e0f2fe);border-radius:var(--radius);padding:28px 24px;text-align:center;border:1px solid rgba(0,119,182,0.1);transition:all 0.3s;position:relative;overflow:hidden}
.about-num-item:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,119,182,0.15)}
.about-num-item::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.about-num-icon{margin-bottom:12px}
.about-num{font-size:40px;font-weight:800;color:var(--primary);font-family:'Inter',sans-serif;line-height:1;margin-bottom:6px}
.about-num-label{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.about-num-sub{font-size:13px;color:var(--text-muted)}

/* Solutions / Flow Steps */
.flow-steps{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap}
.flow-step{text-align:center;padding:24px 32px;flex:1;min-width:160px}
.flow-num{width:56px;height:56px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:18px;font-weight:800;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-family:'Inter',sans-serif}
.flow-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:6px}
.flow-step p{font-size:14px;color:var(--text-muted)}
.flow-arrow{padding:0 8px;flex-shrink:0}

/* Manufacturing Grid */
.mfg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mfg-card{background:var(--bg);border-radius:var(--radius);padding:28px 20px;text-align:center;border:1px solid var(--border);transition:all 0.3s}
.mfg-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,119,182,0.1)}
.mfg-icon{width:64px;height:64px;background:linear-gradient(135deg,rgba(0,119,182,0.08),rgba(0,180,216,0.08));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.mfg-card h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}
.mfg-card p{font-size:13px;color:var(--text-muted)}

/* Configurator */
.config-wrapper{background:var(--bg-light);border-radius:16px;padding:40px;border:1px solid var(--border)}
.config-layout{display:grid;grid-template-columns:1fr 280px;gap:32px}
.config-options-area{display:flex;flex-direction:column;gap:24px}
.config-options-group h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;text-transform:uppercase;letter-spacing:0.5px}
.config-options{display:flex;flex-wrap:wrap;gap:10px}
.config-card{display:flex;align-items:center;gap:10px;padding:12px 18px;background:var(--bg);border:2px solid var(--border);border-radius:10px;cursor:pointer;font-size:14px;font-weight:500;color:#E8EDF5;transition:all 0.25s ease;box-shadow:0 1px 3px rgba(0,0,0,0.04)}
.config-card:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,119,182,0.1)}
.config-card.active{background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border-color:transparent;box-shadow:0 4px 15px rgba(0,119,182,0.3);transform:translateY(-1px)}
.config-card.active svg{stroke:#fff!important}
.config-card.active svg circle[fill],.config-card.active svg rect[fill],.config-card.active svg path[fill]{fill:#fff!important}
.config-card svg{flex-shrink:0;transition:all 0.2s}
.config-card-text{flex:1;line-height:1.3}
.config-preview{background:var(--bg);border-radius:12px;padding:28px;border:1px solid var(--border);height:fit-content}
.config-preview h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px}
#configSummaryText{font-size:15px;color:var(--primary);font-weight:600;margin-bottom:24px;line-height:1.6;min-height:60px;padding:12px;background:var(--bg-light);border-radius:8px}
.config-preview .btn{width:100%;justify-content:center;margin-bottom:12px}

/* News Preview */
.news-preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-preview-card{background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all 0.3s}
.news-preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-img-placeholder{height:180px;background:linear-gradient(135deg,#0077B6,#00C8F0);display:flex;align-items:center;justify-content:center}
.news-preview-body{padding:24px}
.news-preview-date{font-size:13px;color:var(--text-muted);margin-bottom:8px;display:block}
.news-preview-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-preview-excerpt{font-size:14px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:24px}
.contact-item{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--bg-light);border-radius:12px;border:1px solid var(--border)}
.contact-icon{width:48px;height:48px;background:linear-gradient(135deg,rgba(0,119,182,0.1),rgba(0,180,216,0.1));border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-item h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.contact-item p{font-size:14px;color:var(--text-light)}
.contact-form{background:var(--bg-light);border-radius:16px;padding:36px;border:1px solid var(--border)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.form-group input,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg);border:2px solid var(--border);border-radius:10px;font-size:15px;color:var(--text);transition:all 0.2s;font-family:inherit}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,119,182,0.1)}
.form-group textarea{resize:vertical;min-height:120px}
.contact-form .btn{width:100%;justify-content:center;margin-top:8px;padding:14px}

/* Footer */
.footer{background:#0A0E1A;color:#fff;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-logo-img{height:70px;width:auto;margin-bottom:16px;opacity:0.9}
.footer-desc{font-size:14px;line-height:1.7;opacity:0.85}
.footer-links h4,.footer-contact h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px}
.footer-links ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;opacity:0.8;transition:opacity 0.2s}
.footer-links a:hover{opacity:1}
.footer-contact p{font-size:14px;opacity:0.85;margin-bottom:8px}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;opacity:0.7}

/* Scroll animations */
.section{opacity:0;transform:translateY(30px);transition:all 0.6s ease}
.section.visible{opacity:1;transform:translateY(0)}

/* Fade up animation for cards */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.product-card:nth-child(1){animation-delay:0s}
.product-card:nth-child(2){animation-delay:0.1s}
.product-card:nth-child(3){animation-delay:0.2s}
.product-card:nth-child(4){animation-delay:0.3s}
.product-card:nth-child(5){animation-delay:0.4s}
.product-card:nth-child(6){animation-delay:0.5s}
.visible .product-card{animation:fadeUp 0.5s ease both}
.visible .mfg-card{animation:fadeUp 0.4s ease both}
.visible .mfg-card:nth-child(1){animation-delay:0s}
.visible .mfg-card:nth-child(2){animation-delay:0.05s}
.visible .mfg-card:nth-child(3){animation-delay:0.1s}
.visible .mfg-card:nth-child(4){animation-delay:0.15s}
.visible .mfg-card:nth-child(5){animation-delay:0.2s}
.visible .mfg-card:nth-child(6){animation-delay:0.25s}
.visible .mfg-card:nth-child(7){animation-delay:0.3s}
.visible .mfg-card:nth-child(8){animation-delay:0.35s}

/* Section background overrides */




#configurator.section.configurator-section{background:var(--bg-secondary) !important}
#news-preview.section.news-preview-section{background:var(--bg) !important}


/* Back to Top Button */





/* ========== 会员系统样式 ========== */

/* 登录按钮 */
.auth-header{display:flex;align-items:center;position:relative;margin-left:12px}
.auth-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.25);border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;transition:all 0.3s;white-space:nowrap;font-family:inherit}
.auth-btn:hover{background:rgba(255,255,255,0.25);border-color:rgba(255,255,255,0.4);transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,119,182,0.35)}
.auth-btn svg{width:16px;height:16px;flex-shrink:0}

/* 用户下拉菜单 */
.user-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background: var(--bg)border-radius:12px;box-shadow:0 8px 40px rgba(0,0,0,0.15);min-width:200px;z-index:1001;overflow:hidden;animation:dropIn 0.2s ease}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.user-dropdown-header{padding:16px;background:linear-gradient(135deg,#0a1628,#023E8A);color:#fff}
.user-dropdown-name{display:block;font-size:15px;font-weight:700}
.user-dropdown-role{display:block;font-size:12px;opacity:0.8;margin-top:2px}
.user-dropdown-item{display:flex;align-items:center;gap:10px;padding:12px 16px;color:#1E293B;text-decoration:none;font-size:14px;transition:background 0.15s;cursor:pointer}
.user-dropdown-item:hover{background:#F1F5F9}
.user-dropdown-item.logout{color:#EF4444;border-top:1px solid #E2E8F0}
.user-dropdown-item svg{width:16px;height:16px;flex-shrink:0}

/* 登录弹窗 */
.auth-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10000;display:flex;align-items:center;justify-content:center}
.auth-modal-overlay{position:absolute;width:100%;height:100%;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px)}
.auth-modal-content{position:relative;background: var(--bg)border-radius:20px;width:420px;max-width:90vw;max-height:90vh;overflow-y:auto;padding:32px;box-shadow:0 20px 60px rgba(0,0,0,0.2);animation:modalSlideUp 0.3s ease}
@keyframes modalSlideUp{from{opacity:0;transform:translateY(30px) scale(0.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.auth-modal-close{position:absolute;top:16px;right:20px;background:none;border:none;font-size:28px;color:#94A3B8;cursor:pointer;z-index:1;line-height:1}
.auth-modal-close:hover{color:#1E293B}
.auth-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid #E2E8F0}
.auth-tab{padding:12px 24px;background:none;border:none;font-size:15px;font-weight:600;color:#94A3B8;cursor:pointer;position:relative;transition:color 0.2s;font-family:inherit;border-bottom:2px solid transparent;margin-bottom:-2px}
.auth-tab.active{color:#0077B6;border-bottom-color:#0077B6}
.auth-tab:hover{color:#0077B6}
.auth-form h3{font-size:22px;font-weight:800;color:var(--text);margin:0 0 4px}
.auth-form-sub{color:#64748B;font-size:14px;margin:0 0 24px}
.auth-form-group{margin-bottom:16px}
.auth-form-group label{display:block;font-size:13px;font-weight:600;color:#334155;margin-bottom:6px}
.auth-form-group input{width:100%;padding:12px 14px;border:2px solid #E2E8F0;border-radius:10px;font-size:14px;transition:border-color 0.2s;outline:none;box-sizing:border-box;font-family:inherit;color:var(--text)}
.auth-form-group input:focus{border-color:#0077B6;box-shadow:0 0 0 3px rgba(0,119,182,0.1)}
.auth-form-group input::placeholder{color:#94A3B8}
.auth-form-error{color:#EF4444;font-size:13px;min-height:20px;margin-bottom:8px}
.auth-submit-btn{width:100%;padding:14px;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer;transition:all 0.3s;display:flex;align-items:center;justify-content:center;gap:8px;font-family:inherit}
.auth-submit-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,119,182,0.35)}
.auth-spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin 0.8s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* 下载中心弹窗 */
.download-panel{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10000;display:flex;align-items:center;justify-content:center}
.download-overlay{position:absolute;width:100%;height:100%;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px)}
.download-content{position:relative;background: var(--bg)border-radius:20px;width:700px;max-width:90vw;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.2);animation:modalSlideUp 0.3s ease}
.download-header{padding:24px 28px;border-bottom:1px solid #E2E8F0;position:relative}
.download-header h2{font-size:22px;font-weight:800;color:var(--text);margin:0}
.download-subtitle{font-size:14px;color:#64748B;margin:4px 0 0}
.download-close{position:absolute;top:24px;right:24px;background:none;border:none;font-size:28px;color:#94A3B8;cursor:pointer;line-height:1}
.download-close:hover{color:#1E293B}
.download-categories{display:flex;gap:8px;padding:16px 28px;border-bottom:1px solid #E2E8F0;flex-wrap:wrap}
.download-cat{padding:8px 18px;background:#F1F5F9;border:1px solid #E2E8F0;border-radius:20px;font-size:13px;color:#475569;cursor:pointer;transition:all 0.2s;font-family:inherit;font-weight:500}
.download-cat.active,.download-cat:hover{background:#0077B6;color:#fff;border-color:#0077B6}
.download-list{padding:16px 28px 28px}
.download-loading{text-align:center;padding:40px;color:#94A3B8}
.download-loading .auth-spinner{margin:0 auto 12px;border-color:rgba(0,119,182,0.2);border-top-color:#0077B6}
.download-item{display:flex;align-items:center;gap:16px;padding:16px;border:1px solid #E2E8F0;border-radius:12px;margin-bottom:12px;transition:all 0.2s}
.download-item:hover{border-color:#0077B6;box-shadow:0 2px 12px rgba(0,119,182,0.08)}
.download-item-icon{width:48px;height:48px;background:#F0F9FF;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.download-item-icon svg{width:24px;height:24px;fill:#0077B6}
.download-item-info{flex:1;min-width:0}
.download-item-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px}
.download-item-desc{font-size:13px;color:#64748B;margin-bottom:4px}
.download-item-meta{display:flex;gap:12px;font-size:12px;color:#94A3B8}
.download-item-btn{padding:10px 20px;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all 0.2s;white-space:nowrap;font-family:inherit}
.download-item-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,119,182,0.3)}
.download-item-btn.downloaded{background:#E2E8F0;color:#94A3B8;cursor:default}

/* 个人面板 */
.profile-body{padding:28px}
.profile-body .auth-form-group{margin-bottom:20px}
.profile-body input[disabled]{color:#94A3B8}

/* Responsive */
@media(max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr)!important}
  .mfg-grid,.news-preview-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .config-layout{grid-template-columns:1fr}
  .flow-steps{flex-direction:column;gap:16px}
  .flow-arrow{transform:rotate(90deg)}
}
@media(max-width:768px){
  .slide-content{padding:20px 16px;height:auto;min-height:440px}
  .hero-title{font-size:32px}
  .hero-carousel{height:440px}
  .slide-content{height:440px}
  .product-grid{grid-template-columns:1fr!important}
  .mfg-grid,.news-preview-grid{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:16px}
  .stat-item{padding:0 24px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .nav{position:fixed;top:100px;left:0;right:0;background:#0A0E1A;flex-direction:column;padding:16px;box-shadow:0 4px 20px rgba(0,0,0,0.4);transform:translateY(-100%);opacity:0;pointer-events:none;transition:all 0.3s;z-index:999}
  .nav.open{transform:translateY(0);opacity:1;pointer-events:all}
  .nav-link{width:100%;padding:12px 16px}
  .mobile-toggle{display:flex}
  .form-row{grid-template-columns:1fr}
  .about-features{grid-template-columns:1fr}
  .about-nums{grid-template-columns:1fr 1fr}
  .section{padding:48px 0}
  .section-header{grid-template-columns:1fr;gap:16px;text-align:center}
  .section-header .section-title{text-align:center}
  .section-header .section-title::after{margin:14px auto 0}
  .section-header .section-desc{text-align:center;max-width:100%}
  .section-title{font-size:28px}
  .config-wrapper{padding:24px}
  .auth-header .auth-btn span{display:none}
  .auth-header .auth-btn{padding:8px 10px}
  .auth-modal-content{padding:24px 20px}
  .download-content{max-height:90vh}
  .download-categories{padding:12px 16px}
  .download-list{padding:12px 16px}
  .download-item{flex-wrap:wrap}
  .download-item-btn{width:100%}
}
@media(max-width:480px){
  .hero-title{font-size:26px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
  .stat-item{padding:0 16px}
  .about-nums{grid-template-columns:1fr}
  
}

/* OEM Flow Section */
.oem-flow{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;margin:40px 0}
.oem-step{flex:1;min-width:160px;max-width:220px;text-align:center;padding:24px 16px}
.oem-step-num{display:inline-block;width:52px;height:52px;line-height:52px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:18px;font-weight:900;border-radius:50%;margin-bottom:14px}
.oem-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:8px}
.oem-step p{font-size:13px;color:var(--text-muted);line-height:1.5}
.oem-arrow{color:var(--primary);font-size:20px;opacity:0.5;padding:0 8px;flex-shrink:0}
@media(max-width:768px){
  .oem-flow{gap:16px}
  .oem-arrow{display:none}
  .oem-step{max-width:100%}
}

/* Advantages Grid */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.adv-card{background: var(--bg)border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:all 0.3s;border:1.5px solid transparent}
.adv-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.adv-icon{width:60px;height:60px;background:linear-gradient(135deg,rgba(0,200,240,0.15),rgba(0,229,255,0.08));border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:18px;color:var(--primary)}
.adv-card h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px}
.adv-card p{font-size:14px;color:var(--text-muted);line-height:1.7}
@media(max-width:900px){
  .adv-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .adv-grid{grid-template-columns:1fr}
}


/* ========== 视频展示�?========== */
.video-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 24px 0 40px;
  flex-wrap: wrap;
}
.video-tab {
  padding: 10px 28px;
  border: 1.5px solid #ddd;
  border-radius: 24px;
  background: var(--bg);
  font-size: 15px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: all 0.3s;
}
.video-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.video-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.video-card {
  background: var(--bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: all 0.3s;
  border: 1.5px solid transparent;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.14);
  border-color: var(--primary);
}

.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: var(--bg-card);
  overflow: hidden;
}
.video-thumb img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.video-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}
.video-card:hover .video-overlay {
  opacity: 1;
}
.play-btn {
  width: 56px; height: 56px;
  background: rgba(0, 200, 240, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
}
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-placeholder {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 40px;
  gap: 8px;
}
.video-placeholder span {
  font-size: 13px;
  opacity: 0.8;
}

.video-info {
  padding: 16px;
}
.video-tag {
  display: inline-block;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 600;
  margin-bottom: 8px;
}
.video-tag.product {
  background: #e8f5e9;
  color: #2e7d32;
}
.video-tag.company {
  background: #e3f2fd;
  color: #1565c0;
}
.video-info h3 {
  font-size: 15px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 6px;
  line-height: 1.4;
}
.video-info p {
  font-size: 13px;
  color: #888;
  margin: 0;
  line-height: 1.5;
}

/* Video CTA */
.video-cta {
  text-align: center;
  margin-top: 16px;
  padding: 32px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
  border-radius: 12px;
  border: 1px solid var(--border);
}
.video-cta p {
  font-size: 15px;
  color: var(--text-light);
  margin: 0 0 16px;
}
.video-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 24px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}
.video-cta-btn:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-2px);
}

/* Video Modal / Lightbox */
.video-modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.88);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.video-modal.active {
  display: flex;
}
.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
}
.video-modal-close {
  position: absolute;
  top: -40px; right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  padding: 8px;
}
.video-modal-close:hover {
  color: #ff6b9d;
}
#videoPlayerContainer {
  width: 100%;
  padding-top: 56.25%;
  position: relative;
  background: #000;
}
#videoPlayerContainer iframe,
#videoPlayerContainer video {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* Section subtitle */
.section-subtitle {
  text-align: center;
  color: #999;
  font-size: 15px;
  margin-top: -16px;
  margin-bottom: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .video-grid { grid-template-columns: 1fr; }
  .video-tabs { gap: 8px; }
  .video-tab { padding: 8px 18px; font-size: 14px; }
}


/* ===== 增强产品卡片样式 ===== */
.product-card {
  background: var(--bg);
  border-radius: 16px;
  border: 1.5px solid #eef2f8;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity 0.3s;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0,119,182,0.18);
  border-color: var(--primary);
}
.product-card:hover::before {
  opacity: 1;
}

/* 卡片图片区域 */
.card-img-wrap {
  position: relative;
  height: 280px !important;
  background: linear-gradient(160deg, #f8fbff 0%, #eef6ff 100%) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 24px !important;
}
.card-img-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.4s;
  border-radius: 8px;
}
.product-card:hover .card-img-wrap img {
  transform: scale(1.1);
  filter: drop-shadow(0 8px 24px rgba(0,119,182,0.2));
}

/* 类别标签角标 */
.card-badge {
  position: absolute;
  top: 16px; left: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(0,119,182,0.35);
}
.card-badge i {
  margin-right: 4px;
  font-size: 10px;
}

/* 卡片内容�?*/
.card-body {
  padding: 20px 22px 24px !important;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-size: 18px !important;
  font-weight: 800 !important;
  color: #1a2a3e !important;
  margin-bottom: 6px !important;
  letter-spacing: -0.3px;
  line-height: 1.3;
}
.card-sub {
  font-size: 13.5px !important;
  color: #8a9baf !important;
  margin: 0 0 14px !important;
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-sub::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
  flex-shrink: 0;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
}
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  background: #f0f7ff;
  color: #0077b6;
  font-weight: 600;
  border: 1px solid #d0e8ff;
  transition: all 0.2s;
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* 卡片底部箭头 */
.card-arrow {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 16px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s;
}
.product-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}
.card-arrow i {
  margin-left: 6px;
  transition: transform 0.3s;
}
.product-card:hover .card-arrow i {
  transform: translateX(4px);
}



/* 自动轮播滑入效果 */
.card-img-stack img{transition:opacity 0.5s ease,transform 0.5s ease;transform:scale(1)}
.card-img-stack img:not(.active){transform:scale(0.95);opacity:0}
.card-img-stack img.active{transform:scale(1);opacity:1}
/* 产品数量标签 */
.product-count {
  position: absolute;
  top: 14px; right: 14px;
  background: rgba(255,255,255,0.9);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
  z-index: 2;
}

/* 响应�?*/
@media (max-width: 900px) {
  .product-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 16px !important; }
  .card-img-wrap { height: 200px !important; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr !important; }
  .card-img-wrap { height: 180px !important; }
  .card-title { font-size: 16px !important; }
}:root {
  --primary:#00C8F0;
  --primary-light:#33D4F5;
  --primary-dark:#0099BF;
  --accent:#00E5FF;
  --text:#E8ECF1;
  --text-light:#B8C4D0;
  --text-muted:#6B7A8C;
  --bg:#0B0F1A;
  --bg-secondary:#111827;
  --bg-card:#161D2E;
  --bg-light:#1C2333;
  --bg-hover:#242D42;
  --border:#2A3347;
  --border-light:#343F56;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:0 8px 48px rgba(0,0,0,0.5);
  --shadow-glow:0 0 30px rgba(0,200,240,0.15);
}
:root{--primary:#00C8F0;--primary-light:#00E5FF;--primary-dark:#0077B6;--accent:#00E5FF;--text:#E8EDF5;--text-light:#B8C4D4;--text-muted:#6B7A8E;--bg:#080C14;--bg-light:#0D1520;--bg-secondary:#0F1A28;--bg-card:#111C2D;--bg-hover:#162035;--border:#1A2740;--radius:12px;--shadow:0 4px 20px rgba(0,0,0,0.4);--shadow-lg:0 8px 36px rgba(0,0,0,0.5);font-family:'Noto Sans SC','Inter',-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:110px}
body{color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 24px}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#0A0E1A;border-bottom:1px solid rgba(255,255,255,0.06);box-shadow:0 2px 20px rgba(0,0,0,0.3)}
.header-inner{height:100px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo-icon{display:flex;align-items:center;gap:8px}
.logo-icon img{height:70px;width:auto}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.nav-link{padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,0.8);border-radius:8px;transition:all 0.2s;white-space:nowrap}
.nav-link:hover,.nav-link.active,.nav-link.spy-active{color:#fff;background:#0077B6}
.lang-switch{display:flex;align-items:center;gap:6px;flex-shrink:0}
.lang-btn{background:none;border:none;cursor:pointer;font-size:14px;font-weight:500;color:rgba(255,255,255,0.6);padding:4px 8px;border-radius:6px;transition:all 0.2s}
.lang-btn:hover,.lang-btn.active{color:#fff;background:rgba(255,255,255,0.12)}
.lang-divider{color:rgba(255,255,255,0.2)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.mobile-toggle span{width:22px;height:2px;background: var(--bg)border-radius:2px;transition:all 0.3s}

/* Hero Carousel */
.hero-carousel{position:relative;margin-top:100px;height:520px;overflow:hidden;background:transparent!important}
.carousel-slides{position:relative;width:100%;height:100%}
.carousel-slide{position:absolute;top:0;left:0;width:100%;height:100%;display:none;z-index:1}
.carousel-slide.active{display:block}
.slide-bg{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:flex-end;padding-right:60px;background:transparent!important}
.slide-img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:0.85}
.slide-content{position:relative;z-index:2;display:flex;align-items:center;height:520px;padding-top:40px;background:transparent}
.slide-content::before{content:'';position:absolute;top:0;left:-60px;width:55%;height:100%;background:linear-gradient(to right,rgba(13,27,42,0.97),rgba(13,27,42,0.85));z-index:-1}
.hero-badge{display:inline-block;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:20px;margin-bottom:20px;letter-spacing:0.5px}
.hero-title{font-size:48px;font-weight:800;line-height:1.2;color:#fff;margin-bottom:20px;text-shadow:0 4px 12px rgba(0,0,0,0.5)}
.hero-title .highlight{color:var(--primary-light)}
.hero-desc{font-size:18px;color:rgba(255,255,255,0.9);margin-bottom:32px;max-width:560px;line-height:1.7;text-shadow:0 2px 8px rgba(0,0,0,0.4)}
.hero-actions{display:flex;gap:16px}
.btn{padding:12px 28px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:all 0.3s;border:2px solid transparent;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border-color:var(--primary)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,119,182,0.35)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background: var(--bg)border:none;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,0.15);transition:all 0.2s}
.carousel-arrow:hover{background: var(--bg)transform:translateY(-50%) scale(1.08);box-shadow:0 6px 24px rgba(0,0,0,0.25)}
.carousel-prev{left:24px}.carousel-next{right:24px}
.carousel-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.carousel-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.carousel-nav-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.4);border:none;cursor:pointer;transition:all 0.3s}
.carousel-nav-dot:hover{background:rgba(255,255,255,0.7)}
.carousel-nav-dot.active{background: var(--bg)width:28px;border-radius:5px}

/* Stats Bar */
.stats-bar{background:#0A0E1A;border-bottom:1px solid rgba(255,255,255,0.06);padding:0;box-shadow:0 2px 12px rgba(0,0,0,0.15)}
.hero-stats{display:flex;align-items:center;justify-content:center;padding:28px 0;gap:0}
.stat-item{display:flex;flex-direction:column;align-items:center;padding:0 48px}
.stat-num{font-size:36px;font-weight:800;color:#00B4D8;font-family:'Inter',sans-serif;line-height:1}
.stat-label{font-size:14px;color:rgba(255,255,255,0.7);margin-top:4px;font-weight:500}
.stat-divider{width:1px;height:40px;background:rgba(255,255,255,0.15)}

/* Sections */
.section{padding:80px 0;background:var(--bg)}
.section-header{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:48px;position:relative}
.section-header .section-tag{grid-column:1/-1;justify-self:center;margin-bottom:4px}
.section-header .section-title{text-align:right;margin-bottom:0}
.section-header .section-title::after{margin:14px auto 0 0}
.section-header .section-desc{text-align:left;margin:0}
.section-header::before{content:'';display:block;position:absolute;top:0;left:50%;transform:translateX(-50%);width:40px;height:2px;background:linear-gradient(90deg,transparent,#0077B6,transparent);border-radius:1px}
.section-tag{display:inline-block;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;font-size:11px;font-weight:800;padding:6px 20px;border-radius:20px;margin-bottom:18px;letter-spacing:2px;text-transform:uppercase;box-shadow:0 4px 12px rgba(0,119,182,0.3)}
.section-title{font-size:36px;font-weight:900;background:linear-gradient(135deg,var(--text),#1E293B);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:12px;position:relative;display:inline-block;letter-spacing:-0.5px;line-height:1.3}
.section-title::after{content:'';display:block;width:60px;height:3px;background:linear-gradient(90deg,#0077B6,#00B4D8);border-radius:2px;margin:14px auto 0;transition:width 0.3s ease}
.section-title:hover::after{width:90px}
.section-desc{font-size:16px;color:var(--text-muted);max-width:420px;line-height:1.7;font-weight:400}

/* Product Grid */
/* Product Grid �?3 columns, fully responsive */
.product-grid{
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  gap: 24px !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}
.product-card{
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s;
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100% !important;
  min-width: 0 !important;
  max-width: 100% !important;
  flex: 1 1 0%;
  /* Grid items shrink/grow equally to fill 3 columns */
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-img-wrap{
  position: relative;
  height: 260px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 20px;
  cursor: pointer;
  flex-shrink: 0;
}
.card-img-stack{
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-img-stack img{
  position: absolute;
  max-width: 100%;
  max-height: 220px;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.card-img-stack img.active{opacity:1;z-index:1}
.card-num{
  position: absolute;
  top: 12px;
  left: 16px;
  font-size: 48px;
  font-weight: 800;
  color: rgba(0,119,182,0.08);
  font-family: 'Inter', sans-serif;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
}
.card-body{
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:6px}
.card-sub{font-size:14px;color:var(--text-muted);margin-bottom:16px}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;background:var(--bg-light);color:var(--text-light);font-size:12px;font-weight:500;padding:4px 12px;border-radius:20px;border:1px solid var(--border);transition:all 0.2s}
.tag-link .tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);cursor:pointer}
.tag-link{transition:all 0.3s ease;position:relative}
.tag-link.active{background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff!important;transform:scale(1.05);box-shadow:0 4px 15px rgba(0,119,182,0.4);border-color:transparent!important}
.tag-link.active .tag{color:#fff!important;font-weight:700;background:transparent!important;border-color:transparent!important}
/* Sub-product background highlight */
.card-img-wrap .main-img[src*="/sub/"]{background:linear-gradient(135deg,#F0F7FF,rgba(0,200,240,0.12))!important;padding:12px!important;border-radius:8px!important}
.card-img-wrap:hover .main-img{transform:scale(1.08)}
.card-img-wrap::after{content:attr(data-hint);position:absolute;bottom:6px;right:10px;background:rgba(0,0,0,0.55);color:#fff;font-size:10px;padding:2px 8px;border-radius:4px;opacity:0;transition:opacity 0.3s}
.card-img-wrap:hover::after{opacity:1}
.card-img-stack img.active{opacity:1;z-index:1}
.card-img-wrap .main-img{transition:all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);background:transparent;border-radius:8px}
.card-img-wrap .main-img[src*="/sub/"]{background:linear-gradient(135deg,#F0F7FF,rgba(0,200,240,0.12));padding:12px}
.card-img-wrap:hover .main-img{transform:scale(1.15);filter:drop-shadow(0 8px 24px rgba(0,119,182,0.2))}
.card-img-wrap::after{content:attr(data-hint);position:absolute;bottom:6px;right:10px;background:rgba(0,0,0,0.55);color:#fff;font-size:10px;padding:2px 8px;border-radius:4px;opacity:0;transition:opacity 0.3s}
.card-img-wrap:hover::after{opacity:1}

/* About Section */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.about-text .section-tag{margin-bottom:12px}
.about-text .section-title{margin-bottom:20px;text-align:left}
.about-text .section-title::after{margin:14px 0 0}
.about-text>p{color:var(--text-light);line-height:1.6;margin-bottom:16px;font-size:14px}
.about-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.about-feat{display:flex;align-items:flex-start;gap:14px;padding:16px;background:var(--bg-light);border-radius:10px;border:1px solid var(--border)}
.about-feat-icon{flex-shrink:0;width:44px;height:44px;background: var(--bg)border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,0.3)}
.about-feat-text h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.about-feat-text p{font-size:13px;color:var(--text-muted)}
.about-nums{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.about-num-item{background:linear-gradient(135deg,#f0f9ff,#e0f2fe);border-radius:var(--radius);padding:28px 24px;text-align:center;border:1px solid rgba(0,119,182,0.1);transition:all 0.3s;position:relative;overflow:hidden}
.about-num-item:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,119,182,0.15)}
.about-num-item::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light))}
.about-num-icon{margin-bottom:12px}
.about-num{font-size:40px;font-weight:800;color:var(--primary);font-family:'Inter',sans-serif;line-height:1;margin-bottom:6px}
.about-num-label{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.about-num-sub{font-size:13px;color:var(--text-muted)}

/* Solutions / Flow Steps */
.flow-steps{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap}
.flow-step{text-align:center;padding:24px 32px;flex:1;min-width:160px}
.flow-num{width:56px;height:56px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:18px;font-weight:800;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-family:'Inter',sans-serif}
.flow-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:6px}
.flow-step p{font-size:14px;color:var(--text-muted)}
.flow-arrow{padding:0 8px;flex-shrink:0}

/* Manufacturing Grid */
.mfg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mfg-card{background:var(--bg);border-radius:var(--radius);padding:28px 20px;text-align:center;border:1px solid var(--border);transition:all 0.3s}
.mfg-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,119,182,0.1)}
.mfg-icon{width:64px;height:64px;background:linear-gradient(135deg,rgba(0,119,182,0.08),rgba(0,180,216,0.08));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.mfg-card h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}
.mfg-card p{font-size:13px;color:var(--text-muted)}

/* Configurator */
.config-wrapper{background:var(--bg-light);border-radius:16px;padding:40px;border:1px solid var(--border)}
.config-layout{display:grid;grid-template-columns:1fr 280px;gap:32px}
.config-options-area{display:flex;flex-direction:column;gap:24px}
.config-options-group h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;text-transform:uppercase;letter-spacing:0.5px}
.config-options{display:flex;flex-wrap:wrap;gap:10px}
.config-card{display:flex;align-items:center;gap:10px;padding:12px 18px;background:var(--bg);border:2px solid var(--border);border-radius:10px;cursor:pointer;font-size:14px;font-weight:500;color:#E8EDF5;transition:all 0.25s ease;box-shadow:0 1px 3px rgba(0,0,0,0.04)}
.config-card:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,119,182,0.1)}
.config-card.active{background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border-color:transparent;box-shadow:0 4px 15px rgba(0,119,182,0.3);transform:translateY(-1px)}
.config-card.active svg{stroke:#fff!important}
.config-card.active svg circle[fill],.config-card.active svg rect[fill],.config-card.active svg path[fill]{fill:#fff!important}
.config-card svg{flex-shrink:0;transition:all 0.2s}
.config-card-text{flex:1;line-height:1.3}
.config-preview{background:var(--bg);border-radius:12px;padding:28px;border:1px solid var(--border);height:fit-content}
.config-preview h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px}
#configSummaryText{font-size:15px;color:var(--primary);font-weight:600;margin-bottom:24px;line-height:1.6;min-height:60px;padding:12px;background:var(--bg-light);border-radius:8px}
.config-preview .btn{width:100%;justify-content:center;margin-bottom:12px}

/* News Preview */
.news-preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-preview-card{background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all 0.3s}
.news-preview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-img-placeholder{height:180px;background:linear-gradient(135deg,#0077B6,#00C8F0);display:flex;align-items:center;justify-content:center}
.news-preview-body{padding:24px}
.news-preview-date{font-size:13px;color:var(--text-muted);margin-bottom:8px;display:block}
.news-preview-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-preview-excerpt{font-size:14px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:24px}
.contact-item{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--bg-light);border-radius:12px;border:1px solid var(--border)}
.contact-icon{width:48px;height:48px;background:linear-gradient(135deg,rgba(0,119,182,0.1),rgba(0,180,216,0.1));border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-item h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.contact-item p{font-size:14px;color:var(--text-light)}
.contact-form{background:var(--bg-light);border-radius:16px;padding:36px;border:1px solid var(--border)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.form-group input,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg);border:2px solid var(--border);border-radius:10px;font-size:15px;color:var(--text);transition:all 0.2s;font-family:inherit}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,119,182,0.1)}
.form-group textarea{resize:vertical;min-height:120px}
.contact-form .btn{width:100%;justify-content:center;margin-top:8px;padding:14px}

/* Footer */
.footer{background:#0A0E1A;color:#fff;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-logo-img{height:70px;width:auto;margin-bottom:16px;opacity:0.9}
.footer-desc{font-size:14px;line-height:1.7;opacity:0.85}
.footer-links h4,.footer-contact h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px}
.footer-links ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;opacity:0.8;transition:opacity 0.2s}
.footer-links a:hover{opacity:1}
.footer-contact p{font-size:14px;opacity:0.85;margin-bottom:8px}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;opacity:0.7}

/* Scroll animations */
.section{opacity:0;transform:translateY(30px);transition:all 0.6s ease}
.section.visible{opacity:1;transform:translateY(0)}

/* Fade up animation for cards */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.product-card:nth-child(1){animation-delay:0s}
.product-card:nth-child(2){animation-delay:0.1s}
.product-card:nth-child(3){animation-delay:0.2s}
.product-card:nth-child(4){animation-delay:0.3s}
.product-card:nth-child(5){animation-delay:0.4s}
.product-card:nth-child(6){animation-delay:0.5s}
.visible .product-card{animation:fadeUp 0.5s ease both}
.visible .mfg-card{animation:fadeUp 0.4s ease both}
.visible .mfg-card:nth-child(1){animation-delay:0s}
.visible .mfg-card:nth-child(2){animation-delay:0.05s}
.visible .mfg-card:nth-child(3){animation-delay:0.1s}
.visible .mfg-card:nth-child(4){animation-delay:0.15s}
.visible .mfg-card:nth-child(5){animation-delay:0.2s}
.visible .mfg-card:nth-child(6){animation-delay:0.25s}
.visible .mfg-card:nth-child(7){animation-delay:0.3s}
.visible .mfg-card:nth-child(8){animation-delay:0.35s}

/* Section background overrides */
#products.section.products-section{background:#f5f7fa!important}
#about.section.about-section{background:linear-gradient(180deg,#F0F7FF 0%,#F8FBFF 100%)!important}
#solutions.mfg-section{background:linear-gradient(180deg,#FFF8F0 0%,#FFF0E0 100%)!important}
#manufacturing.mfg-section{background:linear-gradient(180deg,#F5F8FC 0%,#E8EDF4 100%)!important}


#contact.section.contact-section{background:linear-gradient(180deg,var(--bg-light) 0%,#E3F0FA 100%)!important}

/* Back to Top Button */


/* ========== 会员系统样式 ========== */

/* 登录按钮 */
.auth-header{display:flex;align-items:center;position:relative;margin-left:12px}
.auth-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.25);border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;transition:all 0.3s;white-space:nowrap;font-family:inherit}
.auth-btn:hover{background:rgba(255,255,255,0.25);border-color:rgba(255,255,255,0.4);transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,119,182,0.35)}
.auth-btn svg{width:16px;height:16px;flex-shrink:0}

/* 用户下拉菜单 */
.user-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background: var(--bg)border-radius:12px;box-shadow:0 8px 40px rgba(0,0,0,0.15);min-width:200px;z-index:1001;overflow:hidden;animation:dropIn 0.2s ease}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.user-dropdown-header{padding:16px;background:linear-gradient(135deg,#0a1628,#023E8A);color:#fff}
.user-dropdown-name{display:block;font-size:15px;font-weight:700}
.user-dropdown-role{display:block;font-size:12px;opacity:0.8;margin-top:2px}
.user-dropdown-item{display:flex;align-items:center;gap:10px;padding:12px 16px;color:#1E293B;text-decoration:none;font-size:14px;transition:background 0.15s;cursor:pointer}
.user-dropdown-item:hover{background:#F1F5F9}
.user-dropdown-item.logout{color:#EF4444;border-top:1px solid #E2E8F0}
.user-dropdown-item svg{width:16px;height:16px;flex-shrink:0}

/* 登录弹窗 */
.auth-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10000;display:flex;align-items:center;justify-content:center}
.auth-modal-overlay{position:absolute;width:100%;height:100%;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px)}
.auth-modal-content{position:relative;background: var(--bg)border-radius:20px;width:420px;max-width:90vw;max-height:90vh;overflow-y:auto;padding:32px;box-shadow:0 20px 60px rgba(0,0,0,0.2);animation:modalSlideUp 0.3s ease}
@keyframes modalSlideUp{from{opacity:0;transform:translateY(30px) scale(0.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.auth-modal-close{position:absolute;top:16px;right:20px;background:none;border:none;font-size:28px;color:#94A3B8;cursor:pointer;z-index:1;line-height:1}
.auth-modal-close:hover{color:#1E293B}
.auth-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid #E2E8F0}
.auth-tab{padding:12px 24px;background:none;border:none;font-size:15px;font-weight:600;color:#94A3B8;cursor:pointer;position:relative;transition:color 0.2s;font-family:inherit;border-bottom:2px solid transparent;margin-bottom:-2px}
.auth-tab.active{color:#0077B6;border-bottom-color:#0077B6}
.auth-tab:hover{color:#0077B6}
.auth-form h3{font-size:22px;font-weight:800;color:var(--text);margin:0 0 4px}
.auth-form-sub{color:#64748B;font-size:14px;margin:0 0 24px}
.auth-form-group{margin-bottom:16px}
.auth-form-group label{display:block;font-size:13px;font-weight:600;color:#334155;margin-bottom:6px}
.auth-form-group input{width:100%;padding:12px 14px;border:2px solid #E2E8F0;border-radius:10px;font-size:14px;transition:border-color 0.2s;outline:none;box-sizing:border-box;font-family:inherit;color:var(--text)}
.auth-form-group input:focus{border-color:#0077B6;box-shadow:0 0 0 3px rgba(0,119,182,0.1)}
.auth-form-group input::placeholder{color:#94A3B8}
.auth-form-error{color:#EF4444;font-size:13px;min-height:20px;margin-bottom:8px}
.auth-submit-btn{width:100%;padding:14px;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer;transition:all 0.3s;display:flex;align-items:center;justify-content:center;gap:8px;font-family:inherit}
.auth-submit-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,119,182,0.35)}
.auth-spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin 0.8s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* 下载中心弹窗 */
.download-panel{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10000;display:flex;align-items:center;justify-content:center}
.download-overlay{position:absolute;width:100%;height:100%;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px)}
.download-content{position:relative;background: var(--bg)border-radius:20px;width:700px;max-width:90vw;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.2);animation:modalSlideUp 0.3s ease}
.download-header{padding:24px 28px;border-bottom:1px solid #E2E8F0;position:relative}
.download-header h2{font-size:22px;font-weight:800;color:var(--text);margin:0}
.download-subtitle{font-size:14px;color:#64748B;margin:4px 0 0}
.download-close{position:absolute;top:24px;right:24px;background:none;border:none;font-size:28px;color:#94A3B8;cursor:pointer;line-height:1}
.download-close:hover{color:#1E293B}
.download-categories{display:flex;gap:8px;padding:16px 28px;border-bottom:1px solid #E2E8F0;flex-wrap:wrap}
.download-cat{padding:8px 18px;background:#F1F5F9;border:1px solid #E2E8F0;border-radius:20px;font-size:13px;color:#475569;cursor:pointer;transition:all 0.2s;font-family:inherit;font-weight:500}
.download-cat.active,.download-cat:hover{background:#0077B6;color:#fff;border-color:#0077B6}
.download-list{padding:16px 28px 28px}
.download-loading{text-align:center;padding:40px;color:#94A3B8}
.download-loading .auth-spinner{margin:0 auto 12px;border-color:rgba(0,119,182,0.2);border-top-color:#0077B6}
.download-item{display:flex;align-items:center;gap:16px;padding:16px;border:1px solid #E2E8F0;border-radius:12px;margin-bottom:12px;transition:all 0.2s}
.download-item:hover{border-color:#0077B6;box-shadow:0 2px 12px rgba(0,119,182,0.08)}
.download-item-icon{width:48px;height:48px;background:#F0F9FF;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.download-item-icon svg{width:24px;height:24px;fill:#0077B6}
.download-item-info{flex:1;min-width:0}
.download-item-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px}
.download-item-desc{font-size:13px;color:#64748B;margin-bottom:4px}
.download-item-meta{display:flex;gap:12px;font-size:12px;color:#94A3B8}
.download-item-btn{padding:10px 20px;background:linear-gradient(135deg,#0077B6,#00B4D8);color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all 0.2s;white-space:nowrap;font-family:inherit}
.download-item-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,119,182,0.3)}
.download-item-btn.downloaded{background:#E2E8F0;color:#94A3B8;cursor:default}

/* 个人面板 */
.profile-body{padding:28px}
.profile-body .auth-form-group{margin-bottom:20px}
.profile-body input[disabled]{color:#94A3B8}

/* Responsive */
@media(max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr)!important}
  .mfg-grid,.news-preview-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .config-layout{grid-template-columns:1fr}
  .flow-steps{flex-direction:column;gap:16px}
  .flow-arrow{transform:rotate(90deg)}
}
@media(max-width:768px){
  .slide-content{padding:20px 16px;height:auto;min-height:440px}
  .hero-title{font-size:32px}
  .hero-carousel{height:440px}
  .slide-content{height:440px}
  .product-grid{grid-template-columns:1fr!important}
  .mfg-grid,.news-preview-grid{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:16px}
  .stat-item{padding:0 24px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .nav{position:fixed;top:100px;left:0;right:0;background:#0A0E1A;flex-direction:column;padding:16px;box-shadow:0 4px 20px rgba(0,0,0,0.4);transform:translateY(-100%);opacity:0;pointer-events:none;transition:all 0.3s;z-index:999}
  .nav.open{transform:translateY(0);opacity:1;pointer-events:all}
  .nav-link{width:100%;padding:12px 16px}
  .mobile-toggle{display:flex}
  .form-row{grid-template-columns:1fr}
  .about-features{grid-template-columns:1fr}
  .about-nums{grid-template-columns:1fr 1fr}
  .section{padding:48px 0}
  .section-header{grid-template-columns:1fr;gap:16px;text-align:center}
  .section-header .section-title{text-align:center}
  .section-header .section-title::after{margin:14px auto 0}
  .section-header .section-desc{text-align:center;max-width:100%}
  .section-title{font-size:28px}
  .config-wrapper{padding:24px}
  .auth-header .auth-btn span{display:none}
  .auth-header .auth-btn{padding:8px 10px}
  .auth-modal-content{padding:24px 20px}
  .download-content{max-height:90vh}
  .download-categories{padding:12px 16px}
  .download-list{padding:12px 16px}
  .download-item{flex-wrap:wrap}
  .download-item-btn{width:100%}
}
@media(max-width:480px){
  .hero-title{font-size:26px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
  .stat-item{padding:0 16px}
  .about-nums{grid-template-columns:1fr}
  
}

/* OEM Flow Section */
.oem-flow{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;margin:40px 0}
.oem-step{flex:1;min-width:160px;max-width:220px;text-align:center;padding:24px 16px}
.oem-step-num{display:inline-block;width:52px;height:52px;line-height:52px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:18px;font-weight:900;border-radius:50%;margin-bottom:14px}
.oem-step h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:8px}
.oem-step p{font-size:13px;color:var(--text-muted);line-height:1.5}
.oem-arrow{color:var(--primary);font-size:20px;opacity:0.5;padding:0 8px;flex-shrink:0}
@media(max-width:768px){
  .oem-flow{gap:16px}
  .oem-arrow{display:none}
  .oem-step{max-width:100%}
}

/* Advantages Grid */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.adv-card{background: var(--bg)border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:all 0.3s;border:1.5px solid transparent}
.adv-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.adv-icon{width:60px;height:60px;background:linear-gradient(135deg,rgba(0,200,240,0.15),rgba(0,229,255,0.08));border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:18px;color:var(--primary)}
.adv-card h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px}
.adv-card p{font-size:14px;color:var(--text-muted);line-height:1.7}
@media(max-width:900px){
  .adv-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .adv-grid{grid-template-columns:1fr}
}


/* ========== 视频展示�?========== */
.video-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 24px 0 40px;
  flex-wrap: wrap;
}
.video-tab {
  padding: 10px 28px;
  border: 1.5px solid #ddd;
  border-radius: 24px;
  background: var(--bg);
  font-size: 15px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: all 0.3s;
}
.video-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.video-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.video-card {
  background: var(--bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: all 0.3s;
  border: 1.5px solid transparent;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.14);
  border-color: var(--primary);
}

.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: var(--bg-card);
  overflow: hidden;
}
.video-thumb img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.video-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}
.video-card:hover .video-overlay {
  opacity: 1;
}
.play-btn {
  width: 56px; height: 56px;
  background: rgba(255,255,255,0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
}
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-placeholder {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 40px;
  gap: 8px;
}
.video-placeholder span {
  font-size: 13px;
  opacity: 0.8;
}

.video-info {
  padding: 16px;
}
.video-tag {
  display: inline-block;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
  font-weight: 600;
  margin-bottom: 8px;
}
.video-tag.product {
  background: #e8f5e9;
  color: #2e7d32;
}
.video-tag.company {
  background: #e3f2fd;
  color: #1565c0;
}
.video-info h3 {
  font-size: 15px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 0 0 6px;
  line-height: 1.4;
}
.video-info p {
  font-size: 13px;
  color: #888;
  margin: 0;
  line-height: 1.5;
}

/* Video CTA */
.video-cta {
  text-align: center;
  margin-top: 16px;
  padding: 32px;
  background: linear-gradient(135deg, #f8f9ff 0%, #fff 100%);
  border-radius: 12px;
  border: 1px solid #eee;
}
.video-cta p {
  font-size: 15px;
  color: #666;
  margin: 0 0 16px;
}
.video-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: #ff6b9d;
  color: #fff;
  border-radius: 24px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}
.video-cta-btn:hover {
  background: #e91e63;
  transform: translateY(-2px);
}

/* Video Modal / Lightbox */
.video-modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.88);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.video-modal.active {
  display: flex;
}
.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
}
.video-modal-close {
  position: absolute;
  top: -40px; right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  padding: 8px;
}
.video-modal-close:hover {
  color: #ff6b9d;
}
#videoPlayerContainer {
  width: 100%;
  padding-top: 56.25%;
  position: relative;
  background: #000;
}
#videoPlayerContainer iframe,
#videoPlayerContainer video {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* Section subtitle */
.section-subtitle {
  text-align: center;
  color: #999;
  font-size: 15px;
  margin-top: -16px;
  margin-bottom: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .video-grid { grid-template-columns: 1fr; }
  .video-tabs { gap: 8px; }
  .video-tab { padding: 8px 18px; font-size: 14px; }
}


/* ===== 增强产品卡片样式 ===== */
.product-card {
  background: var(--bg);
  border-radius: 16px;
  border: 1.5px solid #eef2f8;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity 0.3s;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0,119,182,0.18);
  border-color: var(--primary);
}
.product-card:hover::before {
  opacity: 1;
}

/* 卡片图片区域 */
.card-img-wrap {
  position: relative;
  height: 280px !important;
  background: linear-gradient(160deg, #f8fbff 0%, #eef6ff 100%) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 24px !important;
}
.card-img-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.4s;
  border-radius: 8px;
}
.product-card:hover .card-img-wrap img {
  transform: scale(1.1);
  filter: drop-shadow(0 8px 24px rgba(0,119,182,0.2));
}

/* 类别标签角标 */
.card-badge {
  position: absolute;
  top: 16px; left: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(0,119,182,0.35);
}
.card-badge i {
  margin-right: 4px;
  font-size: 10px;
}

/* 卡片内容�?*/
.card-body {
  padding: 20px 22px 24px !important;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-size: 18px !important;
  font-weight: 800 !important;
  color: #1a2a3e !important;
  margin-bottom: 6px !important;
  letter-spacing: -0.3px;
  line-height: 1.3;
}
.card-sub {
  font-size: 13.5px !important;
  color: #8a9baf !important;
  margin: 0 0 14px !important;
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-sub::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
  flex-shrink: 0;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
}
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  background: #f0f7ff;
  color: #0077b6;
  font-weight: 600;
  border: 1px solid #d0e8ff;
  transition: all 0.2s;
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* 卡片底部箭头 */
.card-arrow {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 16px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s;
}
.product-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}
.card-arrow i {
  margin-left: 6px;
  transition: transform 0.3s;
}
.product-card:hover .card-arrow i {
  transform: translateX(4px);
}



/* 自动轮播滑入效果 */
.card-img-stack img{transition:opacity 0.5s ease,transform 0.5s ease;transform:scale(1)}
.card-img-stack img:not(.active){transform:scale(0.95);opacity:0}
.card-img-stack img.active{transform:scale(1);opacity:1}
/* 产品数量标签 */
.product-count {
  position: absolute;
  top: 14px; right: 14px;
  background: rgba(255,255,255,0.9);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
  z-index: 2;
}

/* 响应�?*/
@media (max-width: 900px) {
  .product-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 16px !important; }
  .card-img-wrap { height: 200px !important; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: 1fr !important; }
  .card-img-wrap { height: 180px !important; }
  .card-title { font-size: 16px !important; }
}


/* ================================================
   AVCO 深色主题 - 高端医疗台车官网
   ================================================ */

:root {
  --primary: #00C8F0;
  --primary-light: #33D4F5;
  --primary-dark: #0099BF;
  --accent: #00E5FF;
  --text: #E8ECF1;
  --text-light: #B8C4D0;
  --text-muted: #6B7A8C;
  --bg: #0B0F1A;
  --bg-secondary: #111827;
  --bg-card: #161D2E;
  --bg-light: #1C2333;
  --bg-hover: #242D42;
  --border: #2A3347;
  --border-light: #343F56;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(0,200,240,0.15);
}

/* 全局 */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Header */
.header {
  background: rgba(11, 15, 26, 0.92) !important;
  border-bottom: 1px solid var(--border) !important;
  backdrop-filter: blur(20px);
}
.header.scrolled { background: rgba(11, 15, 26, 0.98) !important; }

.nav-links a { color: var(--text-light) !important; }
.nav-links a:hover, .nav-links a.active { color: var(--primary) !important; }

.logo-text { display:flex !important; align-items:center !important; }
.logo-en { color: var(--primary) !important; }

.cta-btn, .btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important;
  box-shadow: 0 4px 20px rgba(0,200,240,0.3);
}

/* Hero */
.hero { background: var(--bg) !important; }
.hero h1 { color: #fff !important; }
.hero p { color: var(--text-light) !important; }

/* 所�?section 基础 */
.section { background: var(--bg) !important; }

/* 产品�?*/
#products {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
#products h2 { color: #fff !important; }
#products .section-sub { color: var(--text-muted) !important; }

/* OEM */
#oem {
  background: var(--bg) !important;
}

/* 选型配置 */
#configurator {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
#configurator h2 { color: #fff !important; }
#configurator .section-sub { color: var(--text-muted) !important; }

/* 加工工艺 */
#manufacturing {
  background: var(--bg) !important;
}

/* 优势 */
#advantages {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
#advantages h2 { color: #fff !important; }
#advantages .section-sub { color: var(--text-muted) !important; }

/* 视频�?*/
#videos {
  background: var(--bg) !important;
}
#videos h2 { color: #fff !important; }
#videos .section-sub { color: var(--text-muted) !important; }

/* 关于我们 */
#about {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border);
}
#about h2 { color: #fff !important; }
#about p { color: var(--text-light) !important; }

/* 新闻 */
#news {
  background: var(--bg) !important;
}
#news h2 { color: #fff !important; }

/* 联系 */
#contact {
  background: var(--bg-secondary) !important;
  border-top: 1px solid var(--border);
}
#contact h2 { color: #fff !important; }
#contact p { color: var(--text-light) !important; }

/* footer */
.footer {
  background: var(--bg) !important;
  border-top: 1px solid var(--border);
  color: var(--text-muted) !important;
}
.footer a { color: var(--text-light) !important; }

/* 产品卡片 */
.product-card {
  background: var(--bg-card) !important;
  border: 1.5px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.product-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 16px 48px rgba(0,200,240,0.15), var(--shadow-lg) !important;
  transform: translateY(-8px);
}

.card-title { color: #fff !important; }
.card-sub { color: var(--text-muted) !important; }
.tag {
  background: rgba(0,200,240,0.1) !important;
  color: var(--primary-light) !important;
  border: 1px solid rgba(0,200,240,0.25) !important;
}
.tag:hover { background: var(--primary) !important; color: #fff !important; }

.product-count {
  background: rgba(0,200,240,0.15) !important;
  color: var(--primary) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.card-badge {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  box-shadow: 0 2px 8px rgba(0,200,240,0.3);
}

.card-arrow { color: var(--primary) !important; }

.card-img-wrap {
  background: linear-gradient(160deg, #1a2235 0%, #141c2e 100%) !important;
}

/* 亮点/优势卡片 */
.advantage-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  transition: all 0.3s;
}
.advantage-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 32px rgba(0,200,240,0.12) !important;
  transform: translateY(-4px);
}
.advantage-card h4 { color: #fff !important; }
.advantage-card p { color: var(--text-light) !important; }

/* 优势图标 */
.adv-icon {
  background: rgba(0,200,240,0.1) !important;
  color: var(--primary) !important;
  border: 1px solid rgba(0,200,240,0.2) !important;
}

/* OEM 流程 */
.oem-step {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
}
.oem-step-num { color: var(--primary) !important; }
.oem-step-title { color: #fff !important; }
.oem-step-desc { color: var(--text-light) !important; }

/* 工艺卡片 */
.mfg-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.mfg-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 4px 20px rgba(0,200,240,0.1) !important;
}
.mfg-card h4 { color: #fff !important; }
.mfg-card p { color: var(--text-light) !important; }

/* 视频卡片 */
.video-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.video-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 30px rgba(0,200,240,0.12) !important;
  transform: translateY(-4px);
}
.video-card-title { color: #fff !important; }
.video-card-sub { color: var(--text-muted) !important; }

/* 视频标签�?*/
.video-tabs .tab-btn {
  color: var(--text-muted) !important;
  border: 1px solid var(--border) !important;
  background: var(--bg-card) !important;
  transition: all 0.2s;
}
.video-tabs .tab-btn.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: var(--primary) !important;
}

/* 新闻卡片 */
.news-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.news-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 24px rgba(0,200,240,0.1) !important;
  transform: translateY(-3px);
}
.news-title { color: #fff !important; }
.news-date { color: var(--text-muted) !important; }
.news-excerpt { color: var(--text-light) !important; }

/* 配置卡片 */
.cfg-card {
  background: var(--bg-card) !important;
  border: 1.5px solid var(--border) !important;
  color: var(--text-light) !important;
  transition: all 0.2s;
}
.cfg-card:hover, .cfg-card.active {
  border-color: var(--primary) !important;
  background: var(--bg-hover) !important;
  box-shadow: 0 0 0 1px var(--primary), 0 4px 16px rgba(0,200,240,0.15) !important;
}
.cfg-card-title { color: #fff !important; }

/* 选型分组标题 */
.cfg-group-title {
  color: var(--primary) !important;
  border-bottom: 1px solid var(--border) !important;
}

/* 表单 */
.form-group label { color: var(--text-light) !important; }
.form-control, .form-select {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  transition: border-color 0.2s;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(0,200,240,0.1) !important;
  background: var(--bg-hover) !important;
}
.form-control::placeholder { color: var(--text-muted) !important; }

/* 关于我们区域 */
.about-text h2 { color: #fff !important; }
.about-text p { color: var(--text-light) !important; }
.stat-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
}
.stat-num { color: var(--primary) !important; }
.stat-label { color: var(--text-muted) !important; }

/* 分隔�?*/
.section-divider {
  background: linear-gradient(90deg, transparent, var(--border), transparent) !important;
}

/* 按钮 */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  color: #fff !important;
  box-shadow: 0 4px 20px rgba(0,200,240,0.3);
  border: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
  box-shadow: 0 6px 28px rgba(0,200,240,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1.5px solid var(--primary) !important;
  color: var(--primary) !important;
  background: transparent !important;
}
.btn-outline:hover {
  background: var(--primary) !important;
  color: #fff !important;
}

/* 滚动�?*/
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* 弹窗/Modal */
.modal-content {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}
.modal-header { border-bottom: 1px solid var(--border) !important; }
.modal-footer { border-top: 1px solid var(--border) !important; }
.close { color: var(--text-light) !important; }

/* 视频弹窗 */
.video-modal {
  background: rgba(0,0,0,0.92) !important;
  backdrop-filter: blur(8px);
}
.video-modal-content {
  background: #000 !important;
  border: 1px solid var(--border) !important;
}

/* 导航下拉 */
.lang-dropdown-content {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow-lg) !important;
}

/* Tab 标签 */
.tab-btn {
  color: var(--text-muted) !important;
  border: 1px solid var(--border) !important;
}
.tab-btn.active {
  color: var(--primary) !important;
  border-color: var(--primary) !important;
  background: rgba(0,200,240,0.08) !important;
}

/* 链接 */
a { color: var(--primary-light) !important; transition: color 0.2s; }
a:hover { color: var(--accent) !important; }

/* 头像/品牌 */
.avatar-circle {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
  color: #fff !important;
}

/* 导航悬浮效果增强 */
.nav-links a::after {
  background: var(--primary) !important;
}

/* Hero 装饰光效 */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,200,240,0.04) 0%, transparent 60%);
  pointer-events: none;
}

/* 产品卡片数量角标增强 */
.product-count {
  font-weight: 700;
  letter-spacing: 0.3px;
}

/* 响应�?*/
@media (max-width: 768px) {
  .hero h1 { font-size: 28px !important; }
  #products .section-title,
  #oem .section-title,
  #advantages .section-title { font-size: 24px !important; }
}


/* 修正已有类的深色样式 */
.adv-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  transition: all 0.3s;
}
.adv-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 32px rgba(0,200,240,0.12) !important;
  transform: translateY(-4px);
}
.adv-card h4 { color: #fff !important; }
.adv-card p { color: var(--text-light) !important; }

.mfg-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.mfg-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 4px 20px rgba(0,200,240,0.1) !important;
}
.mfg-card h4 { color: #fff !important; }
.mfg-card p { color: var(--text-light) !important; }

.config-card {
  background: var(--bg-card) !important;
  border: 1.5px solid var(--border) !important;
  color: var(--text-light) !important;
  transition: all 0.2s;
}
.config-card:hover, .config-card.active {
  border-color: var(--primary) !important;
  background: var(--bg-hover) !important;
  box-shadow: 0 0 0 1px var(--primary), 0 4px 16px rgba(0,200,240,0.15) !important;
}
.config-card-title { color: #fff !important; }

.oem-step {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
}
.oem-step-num { color: var(--primary) !important; }
.oem-step-title { color: #fff !important; }
.oem-step-desc { color: var(--text-light) !important; }

.news-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.news-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 24px rgba(0,200,240,0.1) !important;
  transform: translateY(-3px);
}
.news-title { color: #fff !important; }
.news-date { color: var(--text-muted) !important; }
.news-excerpt { color: var(--text-light) !important; }

.news-card-title { color: #fff !important; }
.news-card-date { color: var(--text-muted) !important; }
.news-card-excerpt { color: var(--text-light) !important; }

.adv-icon {
  background: rgba(0,200,240,0.1) !important;
  color: var(--primary) !important;
  border: 1px solid rgba(0,200,240,0.2) !important;
}

.video-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  transition: all 0.3s;
}
.video-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 30px rgba(0,200,240,0.12) !important;
  transform: translateY(-4px);
}
.video-card-title { color: #fff !important; }
.video-card-sub { color: var(--text-muted) !important; }

.video-tabs .tab-btn {
  color: var(--text-muted) !important;
  border: 1px solid var(--border) !important;
  background: var(--bg-card) !important;
  transition: all 0.2s;
}
.video-tabs .tab-btn.active {
  background: var(--primary) !important;
  color: #fff !important;
  border-color: var(--primary) !important;
}

.tab-btn {
  color: var(--text-muted) !important;
  border: 1px solid var(--border) !important;
}
.tab-btn.active {
  color: var(--primary) !important;
  border-color: var(--primary) !important;
  background: rgba(0,200,240,0.08) !important;
}

.stat-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
}
.stat-num { color: var(--primary) !important; }
.stat-label { color: var(--text-muted) !important; }

.section-divider {
  background: linear-gradient(90deg, transparent, var(--border), transparent) !important;
}

.form-control, .form-select {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  transition: border-color 0.2s;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(0,200,240,0.1) !important;
  background: var(--bg-hover) !important;
}
.form-control::placeholder { color: var(--text-muted) !important; }

.modal-content {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}
.modal-header { border-bottom: 1px solid var(--border) !important; }
.modal-footer { border-top: 1px solid var(--border) !important; }

.video-modal { background: rgba(0,0,0,0.92) !important; backdrop-filter: blur(8px); }
.video-modal-content { background: #000 !important; border: 1px solid var(--border) !important; }

.footer {
  background: var(--bg) !important;
  border-top: 1px solid var(--border) !important;
  color: var(--text-muted) !important;
}
.footer a { color: var(--text-light) !important; }
.footer a:hover { color: var(--primary) !important; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

a { color: var(--primary-light) !important; transition: color 0.2s; }
a:hover { color: var(--accent) !important; }

.cfg-group-title { color: var(--primary) !important; border-bottom: 1px solid var(--border) !important; }
.avatar-circle { background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important; color: #fff !important; }
.about-text h2 { color: #fff !important; }
.about-text p { color: var(--text-light) !important; }

.hero::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(0,200,240,0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero { position: relative; overflow: hidden; }


/* 深色主题覆盖�?- 强制覆盖所有区块背�?*/
#configurator { background: var(--bg-secondary) !important; }
#videos { background: var(--bg) !important; }
#manufacturing { background: var(--bg) !important; }
#oem { background: var(--bg) !important; }
#products { background: var(--bg-secondary) !important; }
#advantages { background: var(--bg-secondary) !important; }
#about { background: var(--bg-secondary) !important; }
#news { background: var(--bg) !important; }
#contact { background: var(--bg-secondary) !important; }
.news-preview-section { background: var(--bg) !important; }
.configurator-section { background: var(--bg-secondary) !important; }


/* ================================================
   深色主题补充覆盖 - 修复所有残留白�?   ================================================ */

/* 优势卡片 */
.adv-card {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  transition: all 0.3s;
}
.adv-card:hover {
  border-color: var(--primary) !important;
  box-shadow: 0 8px 32px rgba(0,200,240,0.12) !important;
  transform: translateY(-4px);
}
.adv-card h4 { color: #fff !important; }
.adv-card p { color: var(--text-light) !important; }

/* 关于我们特色图标 */
.about-feat-icon {
  background: rgba(0,200,240,0.1) !important;
  border: 1px solid rgba(0,200,240,0.2) !important;
  color: var(--primary) !important;
}

/* 关于数字统计卡片 */
.about-num-item {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
}
.about-num-item .stat-num { color: var(--primary) !important; }
.about-num-item .stat-label { color: var(--text-muted) !important; }

/* 图片包装器白底修�?*/
.card-img-wrap .main-img[src*="/sub/"] {
  background: linear-gradient(160deg, #1a2235 0%, #141c2e 100%) !important;
}

/* 用户下拉/模态框白底 */
.user-dropdown,
.auth-modal-content,
.download-content,
.auth-dropdown {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}
.user-dropdown-item:hover { background: var(--bg-hover) !important; }
.download-cat { background: var(--bg-light) !important; border-color: var(--border) !important; color: var(--text-light) !important; }
.download-item-icon { background: rgba(0,200,240,0.1) !important; }

/* OEM步骤白底 */
.oem-step { background: var(--bg-card) !important; border: 1px solid var(--border) !important; }
.oem-step-num { color: var(--primary) !important; }
.oem-step-title { color: #fff !important; }
.oem-step-desc { color: var(--text-light) !important; }

/* 新闻预览卡片 */
.news-preview-card { background: var(--bg-card) !important; border: 1px solid var(--border) !important; }
.news-preview-date { color: var(--text-muted) !important; }
.news-preview-title { color: var(--text) !important; }
.news-preview-excerpt { color: var(--text-muted) !important; }
.news-img-placeholder { background: var(--bg-light) !important; }

/* 配置卡片 */
.cfg-card { background: var(--bg-card) !important; border: 1.5px solid var(--border) !important; color: var(--text-light) !important; }
.cfg-card:hover, .cfg-card.active { border-color: var(--primary) !important; background: var(--bg-hover) !important; }
.cfg-card-title { color: #fff !important; }

/* 视频卡片 */
.video-card { background: var(--bg-card) !important; border: 1px solid var(--border) !important; }
.video-card:hover { border-color: var(--primary) !important; }
.video-card-title { color: #fff !important; }
.video-card-sub { color: var(--text-muted) !important; }

/* 加工工艺卡片 */
.mfg-card { background: var(--bg-card) !important; border: 1px solid var(--border) !important; }
.mfg-card:hover { border-color: var(--primary) !important; }
.mfg-card h4 { color: #fff !important; }
.mfg-card p { color: var(--text-light) !important; }

/* 视频标签页按�?*/
.video-tabs .tab-btn { color: var(--text-muted) !important; border: 1px solid var(--border) !important; background: var(--bg-card) !important; }
.video-tabs .tab-btn.active { background: var(--primary) !important; color: #fff !important; border-color: var(--primary) !important; }

/* Tab按钮通用 */
.tab-btn { color: var(--text-muted) !important; border: 1px solid var(--border) !important; background: var(--bg-card) !important; }
.tab-btn:hover, .tab-btn.active { color: var(--primary) !important; border-color: var(--primary) !important; background: rgba(0,200,240,0.08) !important; }

/* Section标签 */
.section-tag { color: var(--primary) !important; background: rgba(0,200,240,0.1) !important; border: 1px solid rgba(0,200,240,0.2) !important; }

/* 所有按钮变�?*/
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important; color: #fff !important; border: none !important; }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important; }

.btn-outline { border: 1.5px solid var(--primary) !important; color: var(--primary) !important; background: transparent !important; }
.btn-outline:hover { background: var(--primary) !important; color: #fff !important; }

/* Hero区域CTA按钮白底修复 */
.hero .btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important; color: #fff !important; }

/* footer */
.footer { background: var(--bg) !important; border-top: 1px solid var(--border) !important; }
.footer a { color: var(--text-light) !important; }
.footer a:hover { color: var(--primary) !important; }

/* 联系区域CTA按钮白底 */
#contact .btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important; color: #fff !important; border: none !important; }

/* 模态框 */
.modal-content { background: var(--bg-card) !important; border: 1px solid var(--border) !important; color: var(--text) !important; }
.modal-header { border-bottom: 1px solid var(--border) !important; }
.modal-footer { border-top: 1px solid var(--border) !important; }
.close { color: var(--text-light) !important; }
.modal-title { color: var(--text) !important; }

/* 视频弹窗 */
.video-modal { background: rgba(0,0,0,0.92) !important; backdrop-filter: blur(8px); }
.video-modal-content { background: #000 !important; border: 1px solid var(--border) !important; }

/* 滚动�?*/
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* 全局链接 */
a { color: var(--primary-light) !important; }
a:hover { color: var(--accent) !important; }

/* 通用section背景 */
#products.section { background: var(--bg-secondary) !important; }
#oem.section { background: var(--bg) !important; }
#configurator.section { background: var(--bg-secondary) !important; }
#manufacturing.section { background: var(--bg) !important; }
#advantages.section { background: var(--bg-secondary) !important; }
#videos.section { background: var(--bg) !important; }
#about.section { background: var(--bg-secondary) !important; }
#news.section { background: var(--bg) !important; }
#contact.section { background: var(--bg-secondary) !important; }


/* ================================================
   Footer 深色主题升级 CSS
   ================================================ */
.footer { background: #080C14 !important; border-top: 1px solid var(--border) !important; color: var(--text-light) !important; }
.footer a { color: var(--text-light) !important; transition: color 0.3s; }
.footer a:hover { color: var(--primary) !important; }

.footer-main { max-width: 1280px; margin: 0 auto; padding: 60px 40px 40px; display: grid; grid-template-columns: 320px 1fr; gap: 60px; }

/* Logo */
.footer-logo-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-text { font-size: 26px; font-weight: 900; letter-spacing: 4px; background: linear-gradient(135deg, #00C8F0, #00E5FF); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-logo-divider { color: var(--border-light); font-weight: 300; font-size: 20px; }
.footer-logo-sub { font-size: 14px; color: var(--text-muted); letter-spacing: 3px; font-weight: 400; }

.footer-brand-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; margin-bottom: 20px; }

/* Contact rows */
.footer-contact-row { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-bottom: 8px; }
.footer-contact-item { display: flex; align-items: center; font-size: 13px; color: var(--text-light); }
.footer-contact-item i { color: var(--primary); }

/* Columns grid */
.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer-col h4 { color: #fff !important; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col a { display: block; font-size: 13px; color: var(--text-muted) !important; margin-bottom: 10px; transition: all 0.3s; text-decoration: none; }
.footer-col a:hover { color: var(--primary) !important; transform: translateX(4px); }
.footer-col-text { font-size: 13px; color: var(--text-muted) !important; margin-bottom: 8px; }

/* Social buttons */
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.footer-social-btn { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.06); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--text-light) !important; transition: all 0.3s; text-decoration: none; }
.footer-social-btn:hover { background: var(--primary) !important; border-color: var(--primary) !important; color: #fff !important; transform: translateY(-2px); }

/* Bottom bar */
.footer-bottom { background: rgba(0,0,0,0.4); border-top: 1px solid var(--border); padding: 20px 40px; }
.footer-bottom-inner { max-width: 1280px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-copyright { font-size: 13px; color: var(--text-muted) !important; }
.footer-credits { font-size: 12px; color: var(--text-muted) !important; }
.footer-credits a { color: var(--primary-light) !important; font-size: 12px; }

/* Responsive */
@media(max-width:900px) {
  .footer-main { grid-template-columns: 1fr; gap: 32px; padding: 40px 20px 24px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media(max-width:600px) {
  .footer-cols { grid-template-columns: 1fr; }
  .footer-bottom { padding: 16px 20px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}


/* ================================================
   导航�?LOGO 优化 CSS
   ================================================ */
.logo { display: flex !important; align-items: center !important; gap: 12px !important; flex-shrink: 0; }

.logo-text { display: flex !important; align-items: center !important; gap: 0 !important; }
.logo-text span { 
  font-size: 22px !important; 
  font-weight: 900 !important; 
  letter-spacing: 3px !important;
  background: linear-gradient(135deg, #00C8F0, #00E5FF) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}

/* Logo区域悬停效果 */
.logo:hover .logo-icon img { filter: drop-shadow(0 4px 16px rgba(0,200,240,0.5)); }
.logo:hover .logo-text span { filter: brightness(1.2); }

/* 导航栏滚动后样式 */
.header-inner { transition: all 0.3s; }


/* ================================================
   中英切换按钮 + 一键置�?CSS
   ================================================ */

/* --- Lang Switch (中英互译按钮优化) --- */
.lang-switch { display: flex !important; align-items: center !important; flex-shrink: 0; }
.lang-pill {
  display: flex;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 30px;
  padding: 3px 6px;
  gap: 2px;
}
.lang-btn {
  background: none !important;
  border: none !important;
  cursor: pointer;
  font-size: 12px !important;
  font-weight: 600 !important;
  color: rgba(255,255,255,0.5) !important;
  padding: 5px 14px !important;
  border-radius: 24px !important;
  transition: all 0.3s !important;
  letter-spacing: 0.5px;
}
.lang-btn:hover {
  color: #fff !important;
  background: rgba(255,255,255,0.08) !important;
}
.lang-btn.active {
  background: linear-gradient(135deg, #00C8F0, #00E5FF) !important;
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(0,200,240,0.35);
}

/* --- Back to Top Button --- */
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #00C8F0, #00E5FF);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 4px 20px rgba(0,200,240,0.35);
  color: #fff;
  font-size: 16px;
}
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
  background: linear-gradient(135deg, #00E5FF, #00ffc8);
  box-shadow: 0 6px 28px rgba(0,200,240,0.5);
  transform: translateY(-3px) scale(1.08);
}
  transform: translateY(0) scale(0.95);
}

@media(max-width: 768px) {
}




/* ---- Back to Top Button ---- */




@media(max-width:768px){}

/* ---- Logo left margin ---- */
.logo{margin-left:12px!important}


/* ================================================
   Back to Top Button - Clean Version
   ================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #00C8F0, #00E5FF);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none; /* Hidden by default */
  align-items: center;
  justify-content: center;
  z-index: 9999;
  box-shadow: 0 4px 20px rgba(0,200,240,0.4);
  font-size: 16px;
  transition: all 0.3s ease;
}
.back-to-top.visible {
  display: flex !important;
  animation: bttFadeIn 0.4s ease;
}
@keyframes bttFadeIn {
  from { opacity: 0; transform: scale(0.7) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.back-to-top:hover {
  background: linear-gradient(135deg, #00E5FF, #00ffc8);
  box-shadow: 0 8px 30px rgba(0,200,240,0.6);
  transform: translateY(-4px) scale(1.08);
}
.back-to-top:active {
  transform: scale(0.92);
}
@media(max-width: 768px) {
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; font-size: 14px; }
}


/* ===== BACK TO TOP - FORCE VISIBLE WHEN SCROLLED ===== */
.back-to-top {
  display: none !important;
}
.back-to-top.visible {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}



/* ===== VIDEO SECTION DARK OVERRIDES ===== */
.video-cta { background: var(--bg-secondary) !important; border-color: var(--border) !important; }
.video-cta p { color: var(--text-light) !important; }
.video-modal-content { background: #000 !important; border-radius: 12px !important; }
.video-thumb { background: var(--bg-card) !important; }
.play-btn { background: rgba(0,200,240,0.9) !important; color: #fff !important; }
.video-card-title { color: var(--text) !important; }
.video-card-sub { color: var(--text-muted) !important; }
.video-duration { color: var(--text-light) !important; background: rgba(0,0,0,0.6) !important; }

/* ===== FORCE ANY REMAINING WHITE BACKGROUNDS TO DARK ===== */
.section, .card, .mfg-card, .config-wrapper, .config-card, .config-preview,
.contact-item, .contact-form, .news-preview-card, .adv-card, .oem-card,
.about-feat, .about-num-item {
  background: var(--bg-card) !important;
  border-color: var(--border) !important;
}


/* ===== SLIDE 4: AI TECH OVERLAY STYLES ===== */
.slide-bg-tech {
  position: relative;
}
.slide-product-overlay {
  position: absolute;
  right: 5%;
  bottom: 8%;
  width: 42%;
  max-width: 480px;
  z-index: 2;
  filter: drop-shadow(0 20px 60px rgba(0,200,240,0.35));
  animation: floatProduct 4s ease-in-out infinite;
}
.product-3d-render {
  width: 100%;
  height: auto;
  object-fit: contain;
}
@keyframes floatProduct {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}
.slide-tech-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:;
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(0,200,240,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 30% 70%, rgba(0,100,200,0.12) 0%, transparent 60%),
    radial-gradient(circle at 50% 50%, rgba(0,200,240,0.06) 0%, transparent 50%),
    linear-gradient(135deg, #0a0f1a 0%, #080c14 40%, #0a1628 70%, #0d1f35 100%);
  overflow: hidden;
}
/* Neural network decorative lines */
.slide-tech-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:;
    radial-gradient(circle, rgba(0,200,240,0.3) 1px, transparent 1px),
    radial-gradient(circle, rgba(0,200,240,0.15) 1px, transparent 1px),
    radial-gradient(circle, rgba(0,100,200,0.2) 1.5px, transparent 1.5px);
  background-size: 60px 60px, 30px 30px, 90px 90px;
  background-position: 0 0, 15px 15px, 45px 45px;
  animation: neuralDrift 20s linear infinite;
  opacity: 0.6;
}
@keyframes neuralDrift {
  0% { background-position: 0 0, 15px 15px, 45px 45px; }
  100% { background-position: 60px 60px, 45px 45px, 135px 135px; }
}
/* Circuit lines overlay */
.slide-tech-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:;
    linear-gradient(90deg, transparent 49.5%, rgba(0,200,240,0.08) 49.5%, rgba(0,200,240,0.08) 50.5%, transparent 50.5%),
    linear-gradient(0deg, transparent 49.5%, rgba(0,200,240,0.06) 49.5%, rgba(0,200,240,0.06) 50.5%, transparent 50.5%);
  background-size: 120px 120px;
  animation: gridPulse 4s ease-in-out infinite;
}
@keyframes gridPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* Hero title highlight for tech slide */
.hero-title .highlight {
  background: linear-gradient(90deg, #00C8F0, #00E5FF, #00ffc8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}


/* MOBILE NAV OVERRIDE - FIXED POSITION */
@media(max-width:768px){
  .mobile-toggle{
    display:-webkit-box!important;display:-ms-flexbox!important;display:flex!important;
    position:fixed;top:30px;right:16px;z-index:10000;
    background:linear-gradient(135deg,#00C8F0,#0077B6);
    padding:10px 12px;border-radius:10px;
    -webkit-box-orient:vertical;-ms-flex-direction:column;flex-direction:column;
    gap:5px;cursor:pointer;
    box-shadow:0 4px 20px rgba(0,119,182,0.5);
    border:2px solid rgba(255,255,255,0.3)
  }
  .mobile-toggle span{width:22px;height:3px;background:#fff;border-radius:2px;transition:all 0.3s}
  .mobile-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .mobile-toggle.open span:nth-child(2){opacity:0}
  .mobile-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
  .nav{position:fixed;top:110px!important;left:0;right:0;background:linear-gradient(180deg,#0A0E1A 0%,#1a1f35 100%);flex-direction:column;padding:20px;box-shadow:0 8px 30px rgba(0,0,0,0.6);transform:translateY(-120%);opacity:0;pointer-events:none;transition:all 0.35s cubic-bezier(0.25,0.46,0.45,0.94);z-index:9999;border-top:3px solid #00C8F0}
  .nav.open{transform:translateY(0);opacity:1;pointer-events:all!important}
  .nav-link{width:100%;padding:16px 20px;border-bottom:1px solid rgba(0,200,240,0.15);font-size:16px;font-weight:600;color:#fff;letter-spacing:1px}
  .nav-link:hover{background:rgba(0,200,240,0.15);color:#00C8F0;border-left:3px solid #00C8F0;padding-left:17px}
}

/* FIX HEADER HEIGHT FOR MOBILE */
@media(max-width:768px){
  .header{height:70px!important;min-height:70px}
  .header-inner{height:70px!important;min-height:70px}
  .logo-text span{font-size:18px!important}
}