:root{
  --navy:#16384f; --blue:#25688f; --accent:#e8821e; --bg:#f5f7f9;
  --text:#2b2b2b; --muted:#6b7785; --line:#e2e8ee; --white:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang HK","Microsoft JhengHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
img{max-width:100%}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.narrow{max-width:880px}

.site-header{background:var(--navy);position:sticky;top:0;z-index:50;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:12px;flex-wrap:wrap;padding:8px 0}
.logo{display:flex;align-items:center;gap:11px;color:#fff;text-decoration:none}
.logo-img{width:40px;height:40px;border-radius:9px;flex:0 0 auto;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-cn{font-size:20px;font-weight:700;letter-spacing:1px}
.logo-en{font-size:11px;color:#ffb14d;letter-spacing:2px;white-space:nowrap;margin-top:3px;animation:slogcolor 4s ease-in-out infinite alternate}
.nav-list{list-style:none;display:flex;gap:4px}
.nav-list a{display:block;color:#dce8f0;padding:10px 14px;border-radius:6px;font-size:15px;white-space:nowrap}
.nav-list a:hover,.nav-list a.active{background:var(--accent);color:#fff}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:24px;cursor:pointer;padding:6px 8px}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-box{display:flex;align-items:center;background:#fff;border-radius:6px;overflow:hidden}
.search-box input{border:0;padding:7px 10px;font-size:13px;width:150px;outline:none}
.search-box button{border:0;background:var(--accent);color:#fff;padding:7px 10px;cursor:pointer}
.lang{display:flex;align-items:center;gap:4px;color:#9fc3d8;font-size:13px}
.lang a{color:#dce8f0;padding:2px 4px}
.lang a:hover{color:#fff}

.breadcrumb{background:var(--bg);font-size:13px;color:var(--muted);padding:10px 0}
.breadcrumb a{color:var(--muted)}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:8px}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px 16px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--blue);line-height:1.1}
.stat span{font-size:13px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;position:relative}
.step .num{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:10px}
.step h3{font-size:16px;color:var(--navy);margin-bottom:6px}
.step p{font-size:13px;color:var(--muted);line-height:1.6}
.hero{background:linear-gradient(135deg,rgba(22,56,79,.94),rgba(37,104,143,.9)),url(../images/hero.webp) center/cover no-repeat;color:#fff;padding:80px 0}
.hero h1{font-size:34px;letter-spacing:1px}
.hero-tag{display:inline-block;background:var(--accent);color:#fff;font-size:14px;font-weight:700;padding:5px 16px;border-radius:30px;letter-spacing:1px;margin-bottom:16px}
.hero-sub{font-size:17px;margin:14px 0 26px;color:#cfe2ee}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:6px;font-size:15px;font-weight:600;cursor:pointer;border:0}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#cf6f12}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff}

.section{padding:56px 0}
.section-alt{background:var(--bg)}
.section-title{font-size:24px;color:var(--navy);margin-bottom:22px;position:relative;padding-left:14px}
.section-title:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;background:var(--accent);border-radius:3px}
.page-title{font-size:30px;color:var(--navy);margin-bottom:10px}
.page-title .en{font-size:16px;color:var(--muted);font-weight:400}
.lead{font-size:16px;color:var(--muted);margin-bottom:22px}
.cta-box{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:22px;margin:26px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;box-shadow:0 2px 8px rgba(20,50,70,.04)}
.card h3{color:var(--navy);margin-bottom:8px;font-size:18px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:6px;transition:transform .15s,border-color .15s,box-shadow .15s}
.cat-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 6px 18px rgba(20,50,70,.08)}
.cat-card .cat-thumb{height:150px;overflow:hidden;border-radius:8px;background:var(--bg);margin-bottom:4px}
.cat-card .cat-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}
.cat-card:hover .cat-thumb img{transform:scale(1.05)}
.cat-banner{height:190px;border-radius:12px;overflow:hidden;margin:0 0 24px;background:var(--bg)}
.cat-banner img{width:100%;height:100%;object-fit:cover;display:block}
.about-img{border-radius:12px;overflow:hidden;margin:8px 0 20px;background:var(--bg)}
.about-img img{width:100%;max-height:320px;object-fit:cover;display:block}
.cat-card strong{color:var(--navy);font-size:17px}
.cat-card .cat-en{font-size:12px;color:var(--accent);letter-spacing:1px;text-transform:uppercase}
.cat-card em{font-style:normal;color:var(--muted);font-size:14px}

.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{background:var(--bg);border:1px solid var(--line);border-radius:30px;padding:8px 18px;color:var(--navy)}

.list{padding-left:20px;margin:10px 0}
.list li{margin:8px 0}
.product-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.subnav{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.subnav a{background:var(--navy);color:#fff;padding:10px 20px;border-radius:6px;font-size:14px}
.back{margin-top:24px;font-size:14px}

.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.prod-card{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;align-items:center;transition:box-shadow .15s,border-color .15s}
.prod-card:hover{box-shadow:0 4px 16px rgba(27,79,156,.12);border-color:var(--blue)}
.prod-thumb{flex:0 0 70px;width:70px;height:70px;border-radius:10px;background:#eef3fb;display:flex;align-items:center;justify-content:center}
.prod-thumb svg{width:56px;height:56px;display:block}
.prod-info{flex:1;min-width:0}
.prod-info h3{font-size:15px;margin-bottom:4px;color:var(--navy)}
.prod-spec{color:var(--muted);font-size:13px;line-height:1.6}

.tbl{width:100%;border-collapse:collapse;margin-top:10px;background:#fff}
.tbl th,.tbl td{border:1px solid var(--line);padding:12px 14px;text-align:left;font-size:15px}
.tbl th{background:var(--navy);color:#fff}
.tbl tbody tr:nth-child(even){background:var(--bg)}

.faq{border-bottom:1px solid var(--line);padding:16px 0}
.faq h3{color:var(--navy);font-size:17px}
.faq p{color:var(--muted);margin-top:6px}

.news-item{border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:14px;background:#fff;display:flex;flex-direction:column}
.news-cat{display:inline-block;background:var(--accent);color:#fff;font-size:12px;padding:2px 10px;border-radius:20px;margin-right:8px}
.news-date{color:var(--muted);font-size:13px}
.news-item h3{margin:8px 0 6px;color:var(--navy);font-size:17px}
.news-item h3 a{color:var(--navy)}
.news-item h3 a:hover{color:var(--accent)}
.news-item p{color:var(--muted);font-size:14px}
.news-featured{border:1px solid var(--line);border-radius:12px;padding:24px 26px;margin-bottom:24px;background:linear-gradient(135deg,#fff,var(--bg))}
.news-featured h2{margin:10px 0 8px;font-size:21px}
.news-featured h2 a{color:var(--navy)}
.news-featured h2 a:hover{color:var(--accent)}
.news-featured p{color:var(--muted);font-size:15px}
.news-source{font-size:13px;color:var(--muted);border-left:3px solid var(--accent);padding:6px 12px;background:var(--bg);border-radius:4px;margin:10px 0 18px}
.read-more{display:inline-block;margin-top:10px;color:var(--accent);font-size:14px;font-weight:600}
.read-more:hover{text-decoration:underline}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:6px}
.news-grid .news-item{margin-bottom:0}

.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:30px;margin-top:20px}
.contact-info p{margin:10px 0}
.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form label{display:flex;flex-direction:column;font-size:14px;color:var(--navy);gap:6px}
.contact-form input,.contact-form textarea{border:1px solid var(--line);border-radius:6px;padding:10px 12px;font-size:15px;font-family:inherit}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue)}
.contact-form .form-msg{font-size:14px;font-weight:600;display:none;margin:2px 0 0}
.contact-form .form-msg.ok{display:block;color:#1e9e4a}
.contact-form .form-msg.err{display:block;color:#d64541}
.modal-overlay{position:fixed;inset:0;background:rgba(15,35,50,.6);display:flex;align-items:center;justify-content:center;z-index:999;padding:20px}
.modal-overlay[hidden]{display:none!important}
.modal{background:#fff;border-radius:12px;padding:28px 30px;max-width:380px;width:100%;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.25)}
.modal h3{color:var(--navy);font-size:20px;margin-bottom:10px}
.modal p{color:var(--muted);font-size:15px;line-height:1.6;margin-bottom:18px}

/* search & catalog */
.search-input{width:100%;padding:14px 16px;font-size:16px;border:1px solid var(--line);border-radius:8px;margin:10px 0 20px}
.search-list{list-style:none}
.search-list li{border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin-bottom:10px;background:#fff}
.search-list li a{font-size:17px;color:var(--navy)}
.search-list li span{display:inline-block;color:var(--accent);font-size:12px;margin-left:8px}
.search-list li em{display:block;color:var(--muted);font-style:normal;font-size:13px;margin-top:4px}
.count{color:var(--muted);font-size:14px;margin-bottom:10px}
.empty{color:var(--muted)}
.cat-actions{display:flex;gap:12px;margin:16px 0 28px;flex-wrap:wrap}
.cat-title{font-size:20px;color:var(--navy);margin:28px 0 12px}
.cat-title span{font-size:13px;color:var(--muted);font-weight:400}
.cat-tbl td:first-child{font-weight:600;color:var(--navy);width:40%}

.site-footer{background:var(--navy);color:#cdd9e2;margin-top:40px;padding-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:30px;padding-bottom:30px}
.site-footer h4{color:#fff;margin-bottom:14px;font-size:16px}
.site-footer .footer-slogan{margin-top:16px;font-size:26px;font-weight:800;color:#ffb14d;letter-spacing:1px;border-right:3px solid #ffb14d;display:inline-block;padding-right:6px;min-height:30px;line-height:1.4;white-space:nowrap;text-shadow:0 0 14px rgba(255,150,40,.35);animation:footcaret 1s step-end infinite, slogcolor 4s ease-in-out infinite alternate}
@keyframes footcaret{50%{border-color:transparent}}
@keyframes slogcolor{0%{color:#ffb14d}100%{color:#ff8a2a}}
.site-footer a{color:#9fc3d8}
.site-footer ul{list-style:none}
.site-footer li{margin:6px 0}
.copyright{background:#0f2a3b;padding:14px 0;font-size:13px;color:#8aa3b5}

@media print{
  .site-header,.breadcrumb,.site-footer,.no-print,.nav-toggle{display:none!important}
  .section{padding:10px 0}
  .cat-tbl{font-size:11px}
  body{color:#000}
}
@media(max-width:1100px){
  .nav-toggle{display:block}
  .header-inner>nav{order:4;width:100%}
  .nav-list{display:none;flex-direction:column;padding:6px 0 2px}
  .nav-list.open{display:flex}
  .nav-list a{padding:12px 10px;border-top:1px solid rgba(255,255,255,.08)}
  .header-tools{width:100%;order:3;margin:0;padding-bottom:10px}
  .search-box{flex:1}
  .search-box input{flex:1;width:auto;min-width:0}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .hero h1{font-size:26px}
  .hero{padding:46px 0}
  .grid-2,.grid-4,.cat-grid,.product-list,.prod-grid,.steps,.stats{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .tbl{display:block;overflow-x:auto;white-space:nowrap}
  .section{padding:38px 0}
  .section-title{font-size:21px}
  .cta-box{flex-direction:column;align-items:flex-start}
}