:root{
  --blue:#0b3d91; --blue2:#1565c0; --orange:#e8730c; --orange2:#f59e0b;
  --gray:#f4f6f9; --gray-d:#37474f; --text:#1f2733; --muted:#6b7785;
  --line:#e3e8f0; --maxw:1200px; --radius:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC",-apple-system,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.center{text-align:center;margin-top:28px}

/* 按钮 */
.btn{display:inline-block;padding:12px 26px;border-radius:var(--radius);font-weight:700;cursor:pointer;border:2px solid transparent;transition:.2s;font-size:15px}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue2)}
.btn-ghost{background:transparent;color:#fff;border-color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:var(--orange2)}
.btn-mini{padding:7px 14px;font-size:13px;border-radius:8px;background:var(--gray);color:var(--blue);font-weight:700}
.btn-mini:hover{background:var(--blue);color:#fff}
.btn-danger{background:#e53935;color:#fff}
.btn-danger:hover{background:#c62828}

/* 头部 */
.site-header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06);position:sticky;top:0;z-index:50}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px}
.brand-text strong{display:block;font-size:17px;color:var(--blue)}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted)}
.site-nav{display:flex;align-items:center;gap:18px}
.site-nav a{font-weight:600;color:var(--text);padding:6px 2px;border-bottom:2px solid transparent}
.site-nav a:hover,.site-nav a.active{color:var(--blue);border-color:var(--orange)}
.nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.nav-search input{border:0;padding:6px 12px;outline:none;width:150px;font-size:13px}
.nav-search button{background:var(--blue);color:#fff;border:0;padding:6px 12px;cursor:pointer}
.nav-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--blue)}

/* 首屏 */
.hero{position:relative;color:#fff;padding:90px 0}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.92}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,61,145,.92),rgba(11,61,145,.55))}
.hero-inner{position:relative}
.hero-text{max-width:640px}
.hero h1{font-size:34px;line-height:1.4;margin-bottom:14px}
.hero-sub{font-size:17px;opacity:.95;margin-bottom:22px}
.hero-btns{display:flex;gap:14px;margin-bottom:20px}
.hero-tags{list-style:none;display:flex;flex-wrap:wrap;gap:12px}
.hero-tags li{background:rgba(255,255,255,.15);padding:6px 14px;border-radius:20px;font-size:13px}

/* 区块 */
.section{padding:56px 0}
.section-alt{background:var(--gray)}
.sec-title{text-align:center;font-size:26px;color:var(--blue);position:relative;padding-bottom:12px}
.sec-title::after{content:"";display:block;width:54px;height:3px;background:var(--orange);margin:10px auto 0}
.sec-desc{text-align:center;color:var(--muted);margin:10px 0 32px}
.sub-title{font-size:19px;color:var(--gray-d);margin:26px 0 16px}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.05);border-top:3px solid var(--blue)}
.adv-card.adv-orange{border-top-color:var(--orange)}
.adv-ico{font-size:30px;margin-bottom:10px}
.adv-card h3{font-size:18px;margin-bottom:8px;color:var(--blue)}
.adv-card.adv-orange h3{color:var(--orange)}

/* 产品 */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-two{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:10px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:.2s}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.prod-card img{width:100%;aspect-ratio:1/1;object-fit:contain;padding:8px;background:#fff}
.sec-bags .prod-card img{background:#000}
.prod-body{padding:14px 16px}
.prod-body h4{font-size:16px;margin-bottom:6px}
.prod-body h4 a:hover{color:var(--blue)}
.prod-tags{margin-bottom:8px}
.tag{display:inline-block;background:var(--blue);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px;margin-right:6px}
.tag-sub{background:var(--orange)}
.prod-actions{display:flex;gap:8px;margin-top:10px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;text-align:center}
.step{background:#fff;border-radius:var(--radius);padding:20px 10px;box-shadow:0 4px 16px rgba(0,0,0,.05)}
.step-num{width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-weight:800}
.step-name{font-weight:700}

/* 工厂 */
.factory{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.factory-img img{border-radius:var(--radius);box-shadow:0 6px 20px rgba(0,0,0,.1)}
.factory-points{list-style:none}
.factory-points li{padding:8px 0;border-bottom:1px dashed var(--line)}
.factory-points strong{color:var(--blue)}

/* 应用领域 */
.fields{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.field{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 10px;text-align:center;font-weight:600;color:var(--gray-d)}

/* 资质 */
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;text-align:center}
.cert-card img{height:120px;object-fit:contain;margin:0 auto 8px}
.cert-card span{display:block;font-weight:700;font-size:13px;color:var(--gray-d)}
.cert-card em{font-style:normal;font-size:11px;color:var(--muted)}

/* 转化 */
.cta{background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;padding:48px 0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h2{font-size:24px}
.cta-contact p{margin:4px 0;font-size:16px}
.cta-contact .btn{margin-top:10px}

/* 页脚 */
.site-footer{background:var(--gray-d);color:#cfd8e3;padding:44px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
.site-footer h4{color:#fff;margin-bottom:12px;font-size:16px}
.site-footer .slogan{color:var(--orange2);font-weight:600;margin-top:6px}
.flist{list-style:none}
.flist li{padding:4px 0;font-size:14px}
.flist a:hover{color:var(--orange2)}
.wx-qr{width:120px;height:auto;max-width:120px;background:#fff;padding:6px;border-radius:8px;margin-top:8px}
.footer-bar{margin-top:30px;border-top:1px solid rgba(255,255,255,.12);padding:14px 0;font-size:13px}
.footer-bar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer-bar a{color:var(--orange2)}

/* 悬浮 */
.float-bar{position:fixed;right:18px;bottom:24px;z-index:60;display:flex;flex-direction:column;gap:10px}
.fb{width:52px;height:52px;border-radius:50%;background:var(--blue);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,.25);position:relative}
.fb span{font-size:10px;line-height:1}
.fb-wechat{background:var(--orange)}
.fb-top{background:var(--gray-d)}

/* 页面通用 */
.page{padding:40px 20px 60px}
.page-title{font-size:28px;color:var(--blue);margin-bottom:10px}
.page-sub{color:var(--muted);margin-bottom:24px}
.breadcrumb{color:var(--muted);font-size:13px;margin-bottom:14px}
.breadcrumb a:hover{color:var(--blue)}
.block{margin:30px 0}
.block h2{font-size:21px;color:var(--gray-d);margin-bottom:14px;border-left:4px solid var(--orange);padding-left:10px}
.block p{margin-bottom:10px}

/* 筛选 */
.filter-bar{background:var(--gray);border-radius:var(--radius);padding:16px;margin-bottom:24px}
.filter-group{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px}
.filter-group>span{font-weight:600;color:var(--gray-d)}
.chip{background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 14px;font-size:13px;color:var(--gray-d)}
.chip.on,.chip:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.filter-search{display:flex;gap:8px;margin-top:6px}
.filter-search input{flex:1;max-width:360px;padding:8px 12px;border:1px solid var(--line);border-radius:8px}
.empty{color:var(--muted);padding:20px;text-align:center}

/* 详情 */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.detail-img img{border-radius:var(--radius);box-shadow:0 6px 20px rgba(0,0,0,.1)}
.spec{width:100%;border-collapse:collapse;margin:14px 0}
.spec th,.spec td{border:1px solid var(--line);padding:10px 12px;text-align:left;font-size:14px;vertical-align:top}
.spec th{background:var(--gray);width:110px;color:var(--gray-d)}
.detail-actions{display:flex;gap:12px;margin-top:8px}
.note{font-size:13px;margin-top:10px}

/* 定制 */
.modes{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mode{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-align:center;font-weight:700;color:var(--blue)}
.dot-list{list-style:disc;padding-left:22px}
.dot-list li{margin:6px 0}
.steps-vertical{display:block}
.step-v{display:flex;gap:16px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line)}
.step-v .step-num{margin:0;flex:none}
.step-v-body h4{color:var(--blue);margin-bottom:4px}
.faq-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:8px;padding:14px 16px;margin-bottom:12px}
.faq-item h4{color:var(--gray-d);margin-bottom:6px}

/* 资质页 */
.verify-note{color:var(--muted);font-size:13px;margin-top:14px}

/* 新闻 */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.news-item{display:grid;grid-template-columns:160px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:0 3px 12px rgba(0,0,0,.04)}
.news-item img{height:110px;object-fit:cover;border-radius:8px}
.news-item h3{font-size:16px;margin:4px 0 6px}
.news-item h3 a:hover{color:var(--blue)}
.news-cat{display:inline-block;background:var(--orange);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px}
.news-item time{font-size:12px;color:var(--muted)}
.article{max-width:820px;margin:0 auto}
.article-meta{margin:10px 0;display:flex;gap:12px;align-items:center}
.article-cover img{border-radius:var(--radius);margin:16px 0}
.article-content p{margin-bottom:14px;font-size:16px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-bottom:30px}
.contact-info h2,.contact-form h2{font-size:20px;color:var(--gray-d);margin-bottom:14px}
.contact-form label{display:block;margin-bottom:14px;font-weight:600;color:var(--gray-d)}
.contact-form input,.contact-form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin-top:6px;font-size:14px;font-weight:400}
.contact-form textarea{resize:vertical}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.alert-err{background:#fdecea;color:#c62828}
.alert-ok{background:#e8f5e9;color:#2e7d32}
.map-box{margin-top:10px}

/* 后台 */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--blue),var(--blue2))}
.login-box{background:#fff;border-radius:var(--radius);padding:36px;width:340px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.login-box h2{color:var(--blue);text-align:center;margin-bottom:20px}
.login-box label{display:block;margin-bottom:14px;font-weight:600;color:var(--gray-d)}
.login-box input{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;margin-top:6px}
.login-box .btn{width:100%;margin-top:6px}
.admin-shell{display:flex;min-height:100vh;background:var(--gray)}
.admin-side{width:220px;background:var(--gray-d);color:#cfd8e3;padding:18px 0;flex:none}
.admin-logo{color:#fff;font-weight:800;font-size:18px;text-align:center;padding:0 14px 18px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:12px}
.admin-side nav{display:flex;flex-direction:column}
.admin-side nav a{padding:11px 20px;color:#cfd8e3;font-size:14px}
.admin-side nav a:hover,.admin-side nav a.on{background:var(--blue);color:#fff}
.admin-main{flex:1;padding:26px 30px;overflow:auto}
.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.admin-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 3px 12px rgba(0,0,0,.05)}
.admin-table th,.admin-table td{border-bottom:1px solid var(--line);padding:10px 12px;font-size:13px;text-align:left}
.admin-table th{background:var(--blue);color:#fff}
.admin-table .ops{display:flex;gap:6px}
.admin-table .msg{max-width:320px}
.admin-form{max-width:560px;background:#fff;padding:22px;border-radius:var(--radius);box-shadow:0 3px 12px rgba(0,0,0,.05)}
.admin-form.inline{max-width:720px}
.admin-form label{display:block;margin-bottom:14px;font-weight:600;color:var(--gray-d)}
.admin-form input,.admin-form select,.admin-form textarea{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:8px;margin-top:6px;font-weight:400;font-size:14px}
.admin-form textarea{resize:vertical}
.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:20px 0}
.stat{background:#fff;border-radius:var(--radius);padding:20px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.05)}
.stat b{display:block;font-size:28px;color:var(--blue)}
.stat span{color:var(--muted);font-size:13px}
.stat-new b{color:var(--orange)}
.card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:0 3px 12px rgba(0,0,0,.05);margin-bottom:18px}
.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;color:#fff}
.badge-new{background:#e53935}.badge-read{background:#789}.badge-replied{background:#2e7d32}

/* 响应式 */
@media(max-width:980px){
  .adv-grid,.steps,.cert-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid,.fields{grid-template-columns:repeat(2,1fr)}
  .prod-two,.factory,.detail,.contact-grid,.news-list{grid-template-columns:1fr}
  .modes{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px;box-shadow:0 8px 20px rgba(0,0,0,.1)}
  .site-nav.open{display:flex}
  .nav-search{width:100%}.nav-search input{width:100%}
  .hero h1{font-size:24px}
  .adv-grid,.prod-grid,.fields,.steps,.cert-grid,.modes,.stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .admin-shell{flex-direction:column}
  .admin-side{width:100%;display:flex;overflow:auto}
  .admin-logo{border:0;padding:14px}
  .admin-side nav{flex-direction:row;flex-wrap:wrap}
  .admin-side nav a{padding:10px 14px}
}

/* 图库 */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px}
.gallery-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 3px 12px rgba(0,0,0,.05)}
.gallery-item img{width:100%;height:200px;object-fit:cover}
.gallery-item figcaption{font-size:12px;color:var(--muted);padding:8px 10px}
@media(max-width:980px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.gallery-grid{grid-template-columns:1fr}}

/* 首页实景图集 */
.home-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:10px}
.home-gallery img{width:100%;height:240px;object-fit:cover;border-radius:var(--radius);box-shadow:0 4px 16px rgba(0,0,0,.06)}
@media(max-width:980px){.home-gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.home-gallery{grid-template-columns:1fr}}

/* 首屏横幅 + 通用配图 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero-banner{background:var(--blue);line-height:0}
.hero-banner img{width:100%;height:auto;display:block}
.hero-cta{background:var(--blue);color:#fff;padding:16px 0}
.hero-cta .container{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap}
.hero-note{font-size:13px;color:rgba(255,255,255,.85)}
.sec-figure{margin-top:30px}
.sec-figure img{width:100%;border-radius:var(--radius);box-shadow:0 6px 20px rgba(0,0,0,.1)}
.sec-figure.narrow img{max-width:680px;margin:0 auto}
.license-box{max-width:420px;margin:0 auto}
.license-box img{width:100%;border-radius:var(--radius);box-shadow:0 6px 20px rgba(0,0,0,.15)}
@media(max-width:680px){.hero-note{font-size:12px}}