/* ===================================================================
   CNMC Small Diesel Generator Sets - B2B Export Inquiry Website
   Theme: deep navy + white + orange | light industrial trade style
   =================================================================== */

:root{
  --navy:#0b2d5c;
  --navy-dark:#071c3c;
  --navy-soft:#16407c;
  --orange:#f2820b;
  --orange-dark:#d46f04;
  --wa:#25d366;
  --bg:#f4f6fa;
  --border:#e3e9f3;
  --text:#1b2437;
  --muted:#5b6b83;
  --white:#fff;
  --radius:10px;
  --shadow:0 8px 26px rgba(11,45,92,.09);
  --shadow-lg:0 16px 44px rgba(11,45,92,.16);
  --max:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  color:var(--text);background:var(--white);line-height:1.68;font-size:16px;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--navy);text-decoration:none}
a:hover{color:var(--orange)}
ul{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.center{text-align:center}

/* ---------- language visibility ---------- */
html[data-lang="en"] .zh-only{display:none !important}
html[data-lang="zh"] .en-only{display:none !important}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--border);backdrop-filter:blur(8px);
}
.header-inner{display:flex;align-items:center;gap:22px;height:76px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand img{height:46px;width:46px;object-fit:contain;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;color:var(--navy);letter-spacing:.2px}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.main-nav a{
  padding:9px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text);
  white-space:nowrap;
}
.main-nav a:hover{background:var(--bg);color:var(--navy)}
.main-nav a.active{color:var(--navy);font-weight:700}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.lang-switch{
  display:flex;align-items:center;gap:2px;border:1px solid var(--border);border-radius:9px;
  background:var(--white);padding:3px;
}
.lang-switch a,.lang-switch button{
  display:block;border:0;background:transparent;padding:6px 11px;font-size:13px;line-height:1.25;
  cursor:pointer;color:var(--muted);font-family:inherit;font-weight:600;border-radius:6px;
  text-decoration:none;white-space:nowrap;transition:background .15s,color .15s;
}
.lang-switch a:hover,.lang-switch button:hover{background:var(--bg);color:var(--navy)}
.lang-switch a.on,.lang-switch button.on{background:var(--navy);color:#fff}
.lang-switch a.on:hover,.lang-switch button.on:hover{background:var(--navy);color:#fff}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:8px;font-weight:600;font-size:15px;border:0;cursor:pointer;
  font-family:inherit;transition:.18s;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-soft);color:#fff}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#1eb355;color:#fff}
.btn-ghost{background:transparent;border:1.5px solid var(--border);color:var(--navy)}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy);background:var(--bg)}
.btn-sm{padding:8px 16px;font-size:14px}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;padding:8px 11px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);margin:4px 0;border-radius:2px}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:linear-gradient(115deg,var(--navy-dark) 0%,var(--navy) 48%,#1b4d8f 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:url("../img/factory.jpg") center/cover no-repeat;
  opacity:.24;
}
.hero-inner{position:relative;z-index:2;padding:74px 0 78px;max-width:760px}
.hero h1{font-size:42px;line-height:1.24;font-weight:800;letter-spacing:-.4px;margin-bottom:18px}
.hero .sub{font-size:18px;opacity:.93;margin-bottom:26px;line-height:1.7}
.hero .cta{display:flex;gap:13px;flex-wrap:wrap}
.hero-tags{display:flex;gap:26px;flex-wrap:wrap;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.22)}
.hero-tags div{font-size:14px;opacity:.9}
.hero-tags b{display:block;font-size:23px;font-weight:800;color:#ffc270}

/* ---------- section ---------- */
section{padding:64px 0}
.sec-head{max-width:720px;margin:0 auto 40px}
.sec-head.left{margin-left:0}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--orange);background:#fff4e5;padding:5px 13px;border-radius:20px;margin-bottom:13px;
}
h2.sec-title{font-size:31px;line-height:1.3;font-weight:800;color:var(--navy);letter-spacing:-.3px}
h2.sec-title.center{text-align:center}
.sec-desc{color:var(--muted);font-size:16px;margin-top:11px}
.bg-gray{background:var(--bg)}

/* ---------- product card ---------- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  transition:.2s;display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:#c9d7ec}
.card-img{background:#fff;border-bottom:1px solid var(--border);position:relative}
.card-img img{width:100%;aspect-ratio:3/2;object-fit:contain;padding:6px 8px}
.card-badge{
  position:absolute;top:12px;left:12px;background:var(--navy);color:#fff;font-size:11.5px;
  font-weight:700;padding:4px 10px;border-radius:5px;letter-spacing:.4px;
}
.card-badge.orange{background:var(--orange)}
.card-body{padding:18px 19px 20px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17.5px;font-weight:700;color:var(--navy);margin-bottom:7px;line-height:1.4}
.card-body .spec{font-size:13.5px;color:var(--muted);margin-bottom:12px}
.card-body .spec span{display:inline-block;margin-right:10px}
.card-body .feat{font-size:13.5px;color:var(--muted);flex:1;margin-bottom:15px}
.price-note{font-size:13px;color:var(--orange);font-weight:600;margin-bottom:12px}

/* ---------- feature / scene tiles ---------- */
.tile{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}
.tile .ico{
  width:46px;height:46px;border-radius:10px;background:#fff4e5;color:var(--orange);
  display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:800;margin-bottom:15px;
}
.tile h3{font-size:17px;color:var(--navy);margin-bottom:8px;font-weight:700}
.tile p{font-size:14.5px;color:var(--muted)}

.scene{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 18px;
  text-align:center;transition:.2s;
}
.scene:hover{border-color:var(--orange);box-shadow:var(--shadow)}
.scene .em{font-size:26px;margin-bottom:9px}
.scene h4{font-size:15px;color:var(--navy);font-weight:700;margin-bottom:4px}
.scene p{font-size:13px;color:var(--muted)}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(115deg,var(--navy) 0%,#1b4d8f 100%);color:#fff;
  border-radius:14px;padding:44px 40px;display:flex;align-items:center;gap:30px;flex-wrap:wrap;
}
.cta-band h3{font-size:25px;font-weight:800;line-height:1.35;flex:1;min-width:280px}
.cta-band p{opacity:.85;font-size:15px;margin-top:8px}
.cta-band .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- product detail ---------- */
.breadcrumb{font-size:13.5px;color:var(--muted);padding:16px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--orange)}
.detail{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:start;padding-top:22px}
.detail-img{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.detail-img img{width:100%;aspect-ratio:3/2;object-fit:contain}
.detail h1{font-size:31px;line-height:1.28;color:var(--navy);font-weight:800;margin-bottom:12px}
.detail .lead{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.keyline{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:22px}
.keyline div{background:var(--bg);border-radius:8px;padding:12px 15px}
.keyline span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:2px}
.keyline b{font-size:17px;color:var(--navy)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}

h2.blk{font-size:22px;color:var(--navy);font-weight:800;margin:38px 0 16px;padding-left:13px;border-left:4px solid var(--orange)}
.spec-table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:8px;overflow:hidden;font-size:14.5px}
.spec-table tr:nth-child(even){background:var(--bg)}
.spec-table td{padding:11px 16px;border-bottom:1px solid var(--border);vertical-align:top}
.spec-table td:first-child{width:42%;color:var(--muted);font-weight:500}
.spec-table td:last-child{color:var(--text);font-weight:600}
.feat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.feat-list li{
  background:var(--bg);border-radius:8px;padding:12px 16px 12px 40px;position:relative;font-size:14.5px;
}
.feat-list li::before{
  content:"✓";position:absolute;left:15px;top:11px;color:var(--orange);font-weight:800;
}
.inquiry-box{
  background:var(--navy);color:#fff;border-radius:12px;padding:30px 32px;margin-top:38px;
  display:flex;align-items:center;gap:26px;flex-wrap:wrap;
}
.inquiry-box h3{font-size:20px;font-weight:800;flex:1;min-width:260px;line-height:1.45}
.inquiry-box .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- pages ---------- */
.page-hero{
  background:linear-gradient(115deg,var(--navy-dark),#1b4d8f);color:#fff;padding:54px 0;
}
.page-hero h1{font-size:35px;font-weight:800;letter-spacing:-.3px}
.page-hero p{opacity:.88;margin-top:10px;max-width:700px;font-size:16px}
.prose{max-width:820px}
.prose h2{font-size:24px;color:var(--navy);margin:34px 0 12px;font-weight:800}
.prose h3{font-size:18.5px;color:var(--navy);margin:24px 0 9px;font-weight:700}
.prose p{margin-bottom:14px;color:#33415c}
.prose ul{margin:0 0 16px 4px}
.prose ul li{position:relative;padding-left:20px;margin-bottom:9px;color:#33415c}
.prose ul li::before{content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:50%;background:var(--orange)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:44px;align-items:start}
.contact-item{display:flex;gap:15px;padding:17px 0;border-bottom:1px solid var(--border)}
.contact-item .ic{
  width:44px;height:44px;border-radius:10px;background:#fff4e5;color:var(--orange);
  display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0;
}
.contact-item b{display:block;font-size:15.5px;color:var(--navy)}
.contact-item span{font-size:14.5px;color:var(--muted);word-break:break-all}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:7px;font-size:15px;
  font-family:inherit;background:#fcfdff;color:var(--text);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--navy);background:#fff}
.field textarea{min-height:110px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px}

/* ---------- blog ---------- */
.post-meta{font-size:13px;color:var(--muted);margin-bottom:8px}
.post-card .card-body h3{font-size:17px}
.blog-cats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.blog-cats span{
  font-size:13.5px;padding:7px 15px;border-radius:20px;background:#fff;border:1px solid var(--border);
  color:var(--muted);
}
.blog-cats span.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-dark);color:#c3cfe2;padding:52px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:15px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.75;color:#a9b8cf}
.site-footer li{margin-bottom:9px;font-size:14px}
.site-footer a{color:#c3cfe2}
.site-footer a:hover{color:var(--orange)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.13);margin-top:36px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8496b0;
}

/* ---------- floating whatsapp ---------- */
.float-wa{
  position:fixed;right:20px;bottom:22px;z-index:300;display:flex;flex-direction:column;gap:10px;
}
.float-wa a{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,0,0,.22);transition:.2s;
}
.float-wa a:hover{transform:scale(1.07)}
.float-wa .wa{background:var(--wa)}
.float-wa .mail{background:var(--navy)}
.float-wa svg{width:27px;height:27px;fill:#fff}

/* ---------- misc ---------- */
.note{background:#fff8ec;border-left:4px solid var(--orange);padding:15px 19px;border-radius:0 8px 8px 0;font-size:14.5px;color:#5f4a2b;margin:18px 0}
.logos-row{display:flex;gap:34px;flex-wrap:wrap;align-items:center;justify-content:center}
.logos-row div{font-size:13.5px;color:var(--muted);font-weight:600;letter-spacing:.4px}
.table-wrap{overflow-x:auto}
.mt-0{margin-top:0}

@media (max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .detail{grid-template-columns:1fr;gap:30px}
  .contact-grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .main-nav{
    display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;
    padding:14px 20px 20px;border-bottom:1px solid var(--border);gap:2px;box-shadow:var(--shadow);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 6px;border-bottom:1px solid var(--border);border-radius:0}
  .nav-toggle{display:block;margin-left:auto}
  .main-nav{margin-left:0}
  .header-inner{gap:12px}
  .btn-head-wa{display:none}
}
@media (max-width:640px){
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .feat-list{grid-template-columns:1fr}
  .keyline{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .hero-inner{padding:52px 0 56px}
  .hero h1{font-size:27px}
  .hero .sub{font-size:16px}
  h2.sec-title{font-size:24px}
  .page-hero h1{font-size:26px}
  .detail h1{font-size:24px}
  .cta-band,.inquiry-box{padding:28px 22px}
  .brand img{height:38px;width:38px}
  .footer-grid{grid-template-columns:1fr}
  section{padding:46px 0}
}

/* ---------- 编辑器内容中的特点列表（产品页 the_content 输出） ---------- */
.feat-list-wrap ul{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;list-style:none;margin:0 0 6px}
.feat-list-wrap ul li{background:var(--bg);border-radius:8px;padding:12px 16px 12px 40px;position:relative;font-size:14.5px;color:var(--text)}
.feat-list-wrap ul li::before{content://///2713/;position:absolute;left:15px;top:11px;color:var(--orange);font-weight:800}
.prose ul li{position:relative;padding-left:20px;margin-bottom:9px;color:#33415c}
.prose ul{list-style:none;margin:0 0 16px 4px}
@media (max-width:640px){.feat-list-wrap ul{grid-template-columns:1fr}}