/* ===== CSS Variables ===== */
:root{
  --navy:#0A2540;
  --navy-light:#133254;
  --teal:#0EA5A0;
  --teal-light:#14B8A6;
  --teal-bg:rgba(14,165,160,0.08);
  --white:#FFFFFF;
  --gray-50:#F5F7FA;
  --gray-100:#E8ECF1;
  --gray-200:#D1D9E2;
  --gray-500:#5A6B7F;
  --gray-600:#435468;
  --gray-700:#2C3E50;
  --gray-800:#233041;
  --gray-900:#1A2332;
  --shadow-sm:0 2px 8px rgba(10,37,64,0.06);
  --shadow-md:0 8px 30px rgba(10,37,64,0.10);
  --shadow-lg:0 20px 60px rgba(10,37,64,0.15);
  --radius:12px;
  --radius-sm:8px;
  --transition:all 0.35s cubic-bezier(0.4,0,0.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  color:var(--gray-900);
  background:var(--white);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
/* picture 只做格式切换，不参与布局（避免 img 的百分比宽高失效） */
picture{display:contents}
section[id]{scroll-margin-top:90px}

/* ===== Scroll Reveal ===== */
/* 初始隐藏仅在 JS 可用时生效（<head> 内脚本会加 html.js），脚本被禁/失败时内容直接可见 */
html.js .reveal{opacity:0;transform:translateY(40px);transition:opacity 0.8s ease,transform 0.8s ease}
html.js .reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:0.1s}
.reveal-delay-2{transition-delay:0.2s}
.reveal-delay-3{transition-delay:0.3s}

/* ===== Navigation ===== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:18px 6%;
  display:flex;align-items:center;justify-content:space-between;
  transition:var(--transition);
  background:rgba(10,37,64,0.92);
  box-shadow:0 2px 12px rgba(10,37,64,0.15);
}
.navbar.scrolled{
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-sm);
  padding:12px 6%;
}
.nav-logo{display:flex;align-items:center;gap:12px;flex-shrink:0;min-width:0}
.nav-logo img{height:40px;width:auto;filter:brightness(0) invert(1);transition:var(--transition)}
.navbar.scrolled .nav-logo img{filter:none}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.2;white-space:nowrap}
.nav-logo-text .cn{font-weight:700;font-size:16px;color:var(--white);transition:var(--transition)}
.nav-logo-text .en{font-size:11px;color:rgba(255,255,255,0.7);letter-spacing:0.5px;transition:var(--transition)}
.navbar.scrolled .nav-logo-text .cn{color:var(--navy)}
.navbar.scrolled .nav-logo-text .en{color:var(--gray-500)}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{
  font-size:15px;font-weight:500;color:rgba(255,255,255,0.9);
  position:relative;transition:var(--transition);padding:4px 0;
}
.navbar.scrolled .nav-links a{color:var(--gray-700)}
.nav-links a::after{
  content:'';position:absolute;bottom:0;left:0;width:0;height:2px;
  background:var(--teal);transition:width 0.3s ease;
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a:hover{color:var(--teal-light)}
.navbar.scrolled .nav-links a:hover{color:var(--teal)}
.lang-select{position:relative;z-index:1001;flex-shrink:0}
.lang-select-btn{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.3);
  border-radius:20px;padding:5px 14px;cursor:pointer;transition:var(--transition);
  font-size:13px;font-weight:500;color:var(--white);
  user-select:none;white-space:nowrap;flex-shrink:0;
}
.navbar.scrolled .lang-select-btn{
  background:var(--gray-50);border-color:var(--gray-200);color:var(--gray-700);
}
.lang-select-btn:hover{background:rgba(255,255,255,0.25)}
.navbar.scrolled .lang-select-btn:hover{background:var(--teal-bg);border-color:var(--teal)}
.lang-select-btn .dot{width:6px;height:6px;border-radius:50%;background:var(--teal-light)}
.lang-arrow{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.5;transition:transform 0.3s ease}
.lang-select.open .lang-arrow{transform:rotate(180deg)}
.lang-menu{
  position:absolute;top:calc(100% + 8px);right:0;min-width:150px;
  background:var(--white);border:1px solid var(--gray-100);border-radius:12px;
  box-shadow:var(--shadow-lg);padding:6px;display:none;
}
.lang-select.open .lang-menu{display:block;animation:langFade 0.2s ease}
@keyframes langFade{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.lang-option{
  display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;
  font-size:13px;color:var(--gray-700);cursor:pointer;transition:var(--transition);
}
.lang-option:hover{background:var(--teal-bg);color:var(--teal)}
.lang-option .dot{width:6px;height:6px;border-radius:50%;background:var(--teal-light);opacity:0;transition:opacity 0.2s}
.lang-option.active{font-weight:500;color:var(--navy)}
.lang-option.active .dot{opacity:1}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.mobile-toggle span{width:24px;height:2px;background:var(--white);transition:var(--transition)}
.navbar.scrolled .mobile-toggle span{background:var(--navy)}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;
  background:linear-gradient(135deg,rgba(10,37,64,0.85) 0%,rgba(10,37,64,0.6) 50%,rgba(14,165,160,0.4) 100%),
    url('../images/hero.webp') center/cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 70% 50%,rgba(14,165,160,0.15) 0%,transparent 60%);
}
.hero-content{position:relative;z-index:2;padding:0 6%;max-width:1400px;width:100%;text-align:center;margin:0 auto}
.hero h1{
  font-size:clamp(36px,5.5vw,64px);font-weight:900;color:var(--white);
  line-height:1.15;margin-bottom:20px;letter-spacing:-0.5px;
  animation:fadeInUp 1s ease 0.4s both;
}
.hero h1 .highlight{color:var(--teal-light)}
.hero-sub{
  font-size:clamp(16px,2vw,20px);color:rgba(255,255,255,0.8);
  max-width:640px;margin:0 auto 16px;font-weight:300;
  animation:fadeInUp 1s ease 0.6s both;
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;animation:fadeInUp 1s ease 0.8s both}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 32px;border-radius:30px;font-size:15px;font-weight:500;
  cursor:pointer;transition:var(--transition);border:none;letter-spacing:0.5px;
}
.btn-primary{background:var(--teal);color:var(--white)}
.btn-primary:hover{background:var(--teal-light);transform:translateY(-2px);box-shadow:0 10px 30px rgba(14,165,160,0.4)}
.btn-outline{background:transparent;color:var(--white);border:1.5px solid rgba(255,255,255,0.4)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:var(--white);transform:translateY(-2px)}
.hero-scroll{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:rgba(255,255,255,0.5);font-size:12px;letter-spacing:2px;
  animation:bounce 2s infinite;z-index:2;
}
.hero-scroll .line{width:1px;height:40px;background:linear-gradient(to bottom,rgba(255,255,255,0.5),transparent)}

/* ===== Section Common ===== */
.section{padding:100px 6%;position:relative}
.section-header{text-align:center;margin-bottom:60px}
.section-tag{
  display:inline-block;font-size:13px;font-weight:500;color:var(--teal);
  letter-spacing:3px;text-transform:uppercase;margin-bottom:14px;
  padding:6px 18px;background:var(--teal-bg);border-radius:20px;
}
.section-title{
  font-size:clamp(28px,3.5vw,40px);font-weight:700;color:var(--navy);
  margin-bottom:16px;letter-spacing:-0.3px;
}
.section-desc{font-size:16px;color:var(--gray-500);max-width:680px;margin:0 auto;font-weight:300}

/* ===== About ===== */
.about{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1400px;margin:0 auto}
.about-image{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-image img{width:100%;height:480px;object-fit:cover;transition:transform 0.6s ease}
.about-image:hover img{transform:scale(1.05)}
.about-image::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,37,64,0.1),transparent);
}
.about-stats{
  position:absolute;bottom:24px;left:24px;right:24px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);
  border-radius:var(--radius-sm);padding:20px;box-shadow:var(--shadow-md);
}
.stat-item{text-align:center}
.stat-num{font-size:28px;font-weight:900;color:var(--navy);line-height:1}
.stat-num .unit{font-size:14px;color:var(--teal);font-weight:500}
.stat-label{font-size:12px;color:var(--gray-500);margin-top:6px}
.about-text h3{font-size:24px;font-weight:700;color:var(--navy);margin-bottom:20px;line-height:1.4}
.about-text p{font-size:15px;color:var(--gray-700);margin-bottom:16px;line-height:1.9}
.about-text .en-text{font-size:14px;color:var(--gray-500);font-style:italic;border-left:3px solid var(--teal);padding-left:16px;margin:20px 0;line-height:1.8}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.feature-item{display:flex;align-items:flex-start;gap:12px}
.feature-icon{
  width:40px;height:40px;border-radius:10px;background:var(--teal-bg);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.feature-icon svg{width:20px;height:20px;stroke:var(--teal);fill:none;stroke-width:2}
.feature-text h4{font-size:14px;font-weight:600;color:var(--navy);margin-bottom:2px}
.feature-text p{font-size:12px;color:var(--gray-500);margin:0;line-height:1.5}

/* ===== Products ===== */
.products{background:var(--gray-50)}
.product-categories{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1400px;margin:0 auto 80px}
.product-card{
  background:var(--white);border-radius:var(--radius);padding:32px 28px;
  border:1px solid var(--gray-100);transition:var(--transition);position:relative;overflow:hidden;
  cursor:pointer;
}
.product-card::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--teal),var(--teal-light));
  transform:scaleX(0);transform-origin:left;transition:transform 0.4s ease;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--teal)}
.product-card:hover::before{transform:scaleX(1)}
.product-card-icon{
  width:56px;height:56px;border-radius:14px;background:var(--teal-bg);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;transition:var(--transition);
}
.product-card:hover .product-card-icon{background:var(--teal)}
.product-card-icon svg{width:28px;height:28px;stroke:var(--teal);fill:none;stroke-width:1.8;transition:var(--transition)}
.product-card:hover .product-card-icon svg{stroke:var(--white)}
.product-card h3{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:8px}
.product-card .en-name{font-size:12px;color:var(--gray-500);letter-spacing:0.5px;margin-bottom:12px}
.product-card p{font-size:13px;color:var(--gray-500);line-height:1.7}

/* Product Catalog Table */
.catalog-section{max-width:1400px;margin:0 auto}
.catalog-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:16px}
.catalog-title{font-size:22px;font-weight:700;color:var(--navy)}
.catalog-search{
  position:relative;width:320px;max-width:100%;
}
.catalog-search input{
  width:100%;padding:12px 16px 12px 44px;border-radius:30px;
  border:1.5px solid var(--gray-200);font-size:14px;font-family:inherit;
  background:var(--white);transition:var(--transition);color:var(--gray-900);
}
.catalog-search input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-bg)}
.catalog-search svg{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;stroke:var(--gray-500);fill:none;stroke-width:2;
}
.catalog-tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.catalog-tab{
  padding:8px 18px;border-radius:20px;font-size:13px;font-weight:500;
  background:var(--white);border:1px solid var(--gray-200);color:var(--gray-700);
  cursor:pointer;transition:var(--transition);font-family:inherit;
}
.catalog-tab:hover{border-color:var(--teal);color:var(--teal)}
.catalog-tab.active{background:var(--teal);color:var(--white);border-color:var(--teal)}
.catalog-table-wrap{
  background:var(--white);border-radius:var(--radius);overflow-x:auto;overflow-y:hidden;
  box-shadow:var(--shadow-sm);border:1px solid var(--gray-100);
}
.catalog-table{width:100%;border-collapse:collapse}
.catalog-table thead{background:var(--navy)}
.catalog-table th{
  padding:14px 20px;text-align:left;font-size:14px;font-weight:600;
  color:var(--white);letter-spacing:0.5px;
}
.catalog-table td{padding:12px 20px;font-size:14px;border-bottom:1px solid var(--gray-100);color:var(--gray-700)}
.catalog-table tbody tr{transition:background 0.2s}
.catalog-table tbody tr:hover{background:var(--teal-bg)}
.catalog-table tbody tr:last-child td{border-bottom:none}
.catalog-table .cas{color:var(--teal);font-family:'Consolas','Courier New',monospace;font-size:15px;font-weight:400}
.catalog-empty{padding:40px;text-align:center;color:var(--gray-500);font-size:14px}
.catalog-note{
  display:flex;align-items:center;gap:10px;
  background:var(--teal-bg);border:1px solid rgba(14,165,160,0.3);
  border-radius:10px;padding:12px 18px;margin-bottom:20px;
  font-size:14px;font-weight:500;color:var(--navy);
}
.catalog-note svg{width:18px;height:18px;stroke:var(--teal);fill:none;stroke-width:2.5;flex-shrink:0}
.catalog-table .code{color:var(--navy);font-family:inherit;font-size:14px;font-weight:400;white-space:nowrap}
.catalog-count{font-size:13px;color:var(--gray-500);margin-top:12px}
.catalog-pagination{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:24px;flex-wrap:wrap;
}
.page-btn{
  min-width:36px;height:36px;padding:0 8px;border-radius:8px;border:1px solid var(--gray-200);
  background:var(--white);color:var(--gray-700);font-size:13px;cursor:pointer;
  transition:var(--transition);display:flex;align-items:center;justify-content:center;
  font-family:inherit;
}
.page-btn:hover{border-color:var(--teal);color:var(--teal)}
.page-btn.active{background:var(--teal);border-color:var(--teal);color:var(--white);font-weight:600}
.page-btn.disabled{opacity:0.4;cursor:not-allowed}
.page-btn.nav-btn svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2.5}
.page-ellipsis{color:var(--gray-500);font-size:13px;padding:0 2px;user-select:none}

/* ===== Global ===== */
.global{background:var(--white);position:relative;overflow:hidden}
.global::before{
  content:'';position:absolute;top:0;right:0;width:50%;height:100%;
  background:linear-gradient(135deg,var(--teal-bg) 0%,transparent 70%);
  pointer-events:none;
}
.global-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1400px;margin:0 auto;position:relative;z-index:1}
.global-map{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center}
.map-canvas{position:relative;width:100%;max-width:620px}
.map-img{width:100%;height:auto;display:block;border-radius:12px;box-shadow:var(--shadow-sm)}
.map-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}
.map-credit{margin-top:10px;font-size:11px;color:var(--gray-500);text-align:center;letter-spacing:0.02em}
.map-dot{animation:mapPulse 2.5s infinite}
.map-dot:nth-child(2){animation-delay:0.5s}
.map-dot:nth-child(3){animation-delay:1s}
.map-dot:nth-child(4){animation-delay:1.5s}
.map-dot:nth-child(5){animation-delay:2s}
.map-dot:nth-child(6){animation-delay:2.5s}
.global-text h3{font-size:28px;font-weight:700;color:var(--navy);margin-bottom:20px;line-height:1.4}
.global-text > p{font-size:15px;color:var(--gray-700);margin-bottom:24px;line-height:1.9}
.global-regions{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.region-item{
  display:flex;align-items:center;gap:12px;padding:16px 20px;
  background:var(--gray-50);border-radius:var(--radius-sm);transition:var(--transition);
  border-left:3px solid var(--teal);
}
.region-item:hover{background:var(--teal-bg);transform:translateX(4px)}
.region-flag{
  width:36px;height:36px;border-radius:50%;background:var(--white);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);
  font-size:16px;font-weight:700;color:var(--teal);
}
.region-info h4{font-size:14px;font-weight:600;color:var(--navy)}
.region-info p{font-size:12px;color:var(--gray-500);margin:0}

/* ===== Contact ===== */
.contact{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 100%);
  position:relative;overflow:hidden;
}
.contact::before{
  content:'';position:absolute;top:-50%;right:-20%;width:60%;height:200%;
  background:radial-gradient(ellipse,rgba(14,165,160,0.15) 0%,transparent 60%);
}
.contact .section-title{color:var(--white)}
.contact .section-desc{color:rgba(255,255,255,0.6)}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1400px;margin:0 auto;position:relative;z-index:1}
.contact-card{
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius);padding:32px 24px;text-align:center;
  transition:var(--transition);backdrop-filter:blur(10px);
}
.contact-card:hover{background:rgba(255,255,255,0.1);transform:translateY(-4px);border-color:rgba(14,165,160,0.4)}
.contact-icon{
  width:56px;height:56px;border-radius:50%;background:rgba(14,165,160,0.15);
  display:flex;align-items:center;justify-content:center;margin:0 auto 20px;
}
.contact-icon svg{width:24px;height:24px;stroke:var(--teal-light);fill:none;stroke-width:1.8}
.contact-card h4{font-size:15px;font-weight:600;color:var(--white);margin-bottom:8px}
.contact-card .value{font-size:13px;color:rgba(255,255,255,0.7);line-height:1.7;word-break:break-all}
.contact-card .placeholder{color:rgba(255,255,255,0.35);font-style:italic}
.contact-card .contact-link{color:var(--teal-light);text-decoration:none;border-bottom:1px solid rgba(14,165,160,0.4);transition:opacity 0.3s;word-break:break-all}
.contact-card .contact-link:hover{opacity:0.8}

/* 微信二维码常驻卡片 */
.contact-qr{
  display:flex;align-items:center;gap:28px;
  max-width:620px;margin:32px auto 0;
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius);padding:20px 28px;
  backdrop-filter:blur(10px);position:relative;z-index:1;
}
.contact-qr-text{flex:1;min-width:0}
.contact-qr-text h4{font-size:15px;font-weight:600;color:var(--white);margin:0 0 6px}
.contact-qr-text p{font-size:13px;line-height:1.7;color:rgba(255,255,255,0.65);margin:0}
.contact-qr-img{
  flex:none;padding:0;border:none;background:#fff;border-radius:10px;
  cursor:pointer;line-height:0;box-shadow:0 6px 18px rgba(0,0,0,0.28);
  transition:transform 0.3s;
}
.contact-qr-img:hover{transform:scale(1.04)}
.contact-qr-img img{display:block;width:120px;height:120px;border-radius:10px}
@media(max-width:600px){
  .contact-qr{flex-direction:column;text-align:center;gap:16px;padding:22px}
  .contact-qr-img img{width:132px;height:132px}
}

/* 二维码放大浮层（三页共用） */
.qr-pop{
  position:fixed;inset:0;z-index:2100;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(10,37,64,0.6);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.qr-pop.open{display:flex}
.qr-pop-card{
  position:relative;background:#fff;border-radius:16px;padding:26px 26px 18px;
  box-shadow:var(--shadow-lg);animation:inqPop 0.3s ease;text-align:center;
}
.qr-pop-card img{display:block;width:260px;height:260px;border-radius:8px}
.qr-pop-card p{margin:14px 0 0;font-size:13px;color:var(--gray-600)}
.qr-pop-close{
  position:absolute;top:6px;right:10px;background:none;border:none;
  font-size:26px;line-height:1;color:var(--gray-500);cursor:pointer;padding:4px;
}
.qr-pop-close:hover{color:var(--navy)}
@media(max-width:400px){.qr-pop-card img{width:220px;height:220px}}

/* ===== Footer ===== */
.footer{background:#061829;padding:60px 6% 30px;color:rgba(255,255,255,0.6)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1400px;margin:0 auto 40px}
.footer-brand .logo-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .logo-row img{height:36px;filter:brightness(0) invert(1)}
.footer-brand .logo-row span{font-size:18px;font-weight:700;color:var(--white)}
.footer-brand p{font-size:13px;line-height:1.8;max-width:320px}
.footer-col h5{font-size:14px;font-weight:600;color:var(--white);margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13px;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--teal-light)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  max-width:1400px;margin:0 auto;font-size:12px;
}

/* ===== Animations ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(1.3)}}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}
@keyframes mapPulse{0%,100%{r:4;opacity:1}50%{r:8;opacity:0.4}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .about-grid,.global-grid{grid-template-columns:1fr;gap:40px}
  .product-categories{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .about-image img{height:380px}
}
@media(max-width:768px){
  .section{padding:70px 5%}
  .nav-links{
    position:fixed;top:0;right:-100%;width:75%;height:100vh;
    background:var(--navy);flex-direction:column;justify-content:center;
    gap:28px;transition:right 0.4s ease;z-index:999;
  }
  .nav-links.open{right:0}
  .nav-links a{color:var(--white)!important;font-size:18px}
  .mobile-toggle{display:flex;z-index:1001}
  .product-categories{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .about-features,.global-regions{grid-template-columns:1fr}
  .about-stats{position:static;margin-top:16px}
  .hero-content{padding-top:100px}
  .hero h1{font-size:clamp(30px,7.5vw,44px);line-height:1.35}
  .catalog-search{width:100%}
  .catalog-table{font-size:12px;min-width:540px}
  .catalog-table th,.catalog-table td{padding:10px 12px}
}
@media(max-width:400px){
  .nav-logo-text .en{display:none}
  .nav-logo-text .cn{font-size:15px}
  .lang-select-btn{padding:5px 10px;font-size:12px}
  .lang-arrow{width:10px;height:10px}
}
/* ===== Hero Slider ===== */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1.4s ease;
  background-size:cover;background-position:center;
}
.hero-slide.active{opacity:1}
.hero-slide::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(10,37,64,0.88) 0%,rgba(10,37,64,0.55) 45%,rgba(14,165,160,0.35) 100%);
}
.hero-content{position:relative;z-index:2;padding:0 6%;max-width:1400px;width:100%;text-align:center;margin:0 auto}
.slider-nav{
  position:absolute;bottom:36px;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:14px;z-index:10;
}
.slider-dots{display:flex;gap:8px;align-items:center}
.slider-dot{
  width:28px;height:3px;border-radius:2px;background:rgba(255,255,255,0.3);
  cursor:pointer;transition:all 0.4s ease;border:none;padding:0;
}
.slider-dot.active{background:var(--teal-light);width:44px}
.slider-arrow{
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.2);color:var(--white);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:var(--transition);
}
.slider-arrow:hover{background:rgba(14,165,160,0.35);border-color:var(--teal-light);transform:scale(1.08)}
.slider-arrow svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}

/* ===== Char Float Animation ===== */
.char-wrap{display:inline-block;overflow:hidden;vertical-align:bottom;padding-bottom:0.05em}
.char{
  display:inline-block;transform:translateY(115%);opacity:0;
  transition:transform 0.75s cubic-bezier(0.16,1,0.3,1),opacity 0.5s ease;
  will-change:transform,opacity;
}
.char.visible{transform:translateY(0);opacity:1}
.hero h1{line-height:1.15;white-space:pre-line}
.hero h1 .char-wrap{line-height:1.15}

/* ===== Image Reveal with Scale ===== */
.img-reveal{overflow:hidden;border-radius:var(--radius)}
html.js .img-reveal img{
  transform:scale(1.18);opacity:0;
  transition:transform 1.5s cubic-bezier(0.16,1,0.3,1),opacity 1s ease;
}
html.js .img-reveal.visible img{transform:scale(1);opacity:1}

/* ===== Responsive additions ===== */
@media(max-width:768px){
  .slider-nav{bottom:24px}
  .slider-dot{width:20px}
  .slider-dot.active{width:32px}
  .slider-arrow{width:34px;height:34px}
}
/* ===== Mobile Hero Title (fix English overlap) ===== */
@media(max-width:768px){
  .hero h1{font-size:clamp(30px,7.5vw,44px);line-height:1.35}
  .hero h1 .char-wrap{line-height:1.35}
}
/* ===== Inquiry Modal ===== */
.inq-modal{position:fixed;inset:0;z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.inq-modal.open{display:flex}
.inq-overlay{position:absolute;inset:0;background:rgba(10,37,64,0.55);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.inq-card{
  position:relative;background:var(--white);border-radius:16px;
  width:100%;max-width:440px;max-height:90vh;overflow-y:auto;
  padding:32px 28px;box-shadow:var(--shadow-lg);animation:inqPop 0.3s ease;
}
@keyframes inqPop{from{opacity:0;transform:translateY(16px) scale(0.97)}to{opacity:1;transform:translateY(0) scale(1)}}
.inq-close{
  position:absolute;top:12px;right:14px;background:none;border:none;
  font-size:26px;line-height:1;color:var(--gray-500);cursor:pointer;padding:4px;
}
.inq-close:hover{color:var(--navy)}
.inq-title{margin:0 0 6px;font-size:20px;color:var(--navy)}
.inq-product{
  font-size:14px;color:var(--gray-600);background:var(--teal-bg);
  border-radius:8px;padding:10px 12px;margin-bottom:18px;word-break:break-word;
}
.inq-field{margin-bottom:14px}
.inq-field label{display:block;font-size:13px;font-weight:500;color:var(--gray-700);margin-bottom:5px}
.inq-field input,.inq-field textarea{
  width:100%;box-sizing:border-box;padding:10px 12px;border:1px solid var(--gray-200);
  border-radius:8px;font-size:14px;color:var(--gray-800);font-family:inherit;background:var(--white);
  transition:border-color 0.2s;
}
.inq-field input:focus,.inq-field textarea:focus{outline:none;border-color:var(--teal)}
.inq-req{color:#D9534F;font-weight:600;margin-left:2px}
.inq-hint{display:block;margin-top:5px;font-size:11.5px;color:var(--gray-500);line-height:1.5}
.inq-field.invalid .inq-hint{display:none}
.inq-err{display:block;margin-top:5px;font-size:12px;color:#C0392B;line-height:1.55}
.inq-err:empty{display:none}
.inq-field.invalid input,.inq-field.invalid textarea{border-color:#E0705F;background:#FEF8F7}
.inq-field.invalid input:focus,.inq-field.invalid textarea:focus{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,0.08)}
.inq-hp{position:absolute;left:-9999px;opacity:0}
.inq-submit{width:100%;justify-content:center;margin-top:6px}
.inq-submit:disabled{cursor:not-allowed;opacity:0.65;transform:none}
.inq-feedback{margin-top:12px;padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;line-height:1.65}
.inq-feedback.ok{background:#E8F7F4;color:#0B6E67;border-left:3px solid var(--teal)}
.inq-feedback.fail{background:#FDF2E6;color:#8A4B14;border-left:3px solid #E39A4A}
.inq-alt{margin:14px 0 0;font-size:12px;color:var(--gray-500);text-align:center;line-height:1.8}
.inq-alt a{color:var(--teal);text-decoration:none;white-space:nowrap}
.inq-alt a:hover{text-decoration:underline}
.inq-wechat{
  width:100%;display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:14px;padding:10px 12px;border:1px solid var(--gray-200);border-radius:10px;
  background:var(--white);color:var(--teal);font-size:14px;font-weight:500;
  font-family:inherit;cursor:pointer;transition:var(--transition);
}
.inq-wechat:hover{border-color:var(--teal);background:var(--teal-bg)}
.inq-wechat svg{width:18px;height:18px;fill:currentColor;flex:none}
.inq-btn{
  background:var(--teal);color:var(--white);border:none;border-radius:6px;
  padding:5px 14px;font-size:12px;cursor:pointer;transition:var(--transition);white-space:nowrap;
}
.inq-btn:hover{background:var(--teal-light);transform:translateY(-1px)}
.inq-cell{white-space:nowrap}
@media(max-width:768px){
  .inq-card{padding:26px 20px}
}
/* 产品独立页：为固定导航留出顶部空间 */
#products{padding-top:160px}
@media(max-width:768px){
  #products{padding-top:120px}
}