/* ============================================================
   家电外贸B2B · 前台样式（深蓝主色 + 橙色强调，全端响应式）
   ============================================================ */
:root{
  --blue:#0a2540; --blue-2:#10355c; --blue-3:#16467a;
  --orange:#ff7a1a; --orange-d:#e5640a;
  --grey:#f5f7fa; --border:#e2e8f0; --text:#2d3748; --muted:#718096;
  --radius:10px; --shadow:0 4px 20px rgba(10,37,64,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.6}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.center{text-align:center}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.muted{color:var(--muted)}
.empty-tip{text-align:center;color:var(--muted);padding:60px 0}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:12px 28px;border-radius:6px;font-size:15px;font-weight:600;cursor:pointer;border:0;transition:.2s;text-align:center}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:var(--orange-d)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-3)}
.btn-ghost{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.btn-whatsapp{background:#25d366;color:#fff}
.btn-whatsapp:hover{background:#1eb857}
.btn-block{display:block;width:100%}
.btn-sm{padding:7px 16px;font-size:13px}

/* ---------- 顶栏 + 导航 ---------- */
.topbar{background:var(--blue);color:#cbd5e1;font-size:13px}
.topbar-in{display:flex;align-items:center;gap:20px;padding:7px 16px;flex-wrap:wrap}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.currency-form select{background:var(--blue-2);color:#fff;border:1px solid var(--blue-3);border-radius:4px;padding:3px 6px;font-size:13px}
.lang-switch{position:relative}
.lang-btn{background:transparent;border:0;color:#fff;cursor:pointer;font-size:13px;padding:4px 6px}
.lang-menu{display:none;position:absolute;right:0;top:100%;background:#fff;border-radius:8px;box-shadow:var(--shadow);list-style:none;min-width:150px;z-index:99;overflow:hidden}
.lang-menu.open{display:block}
.lang-menu a{display:block;padding:9px 16px;color:var(--text);font-size:14px}
.lang-menu a:hover,.lang-menu a.on{background:var(--grey);color:var(--orange)}
.site-header{background:#fff;box-shadow:0 2px 12px rgba(10,37,64,.06);position:sticky;top:0;z-index:50}
.header-main{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;gap:16px}
.logo{display:flex;align-items:center;gap:10px}
.logo-badge{background:var(--orange);color:#fff;font-weight:800;font-size:20px;width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.logo-text{font-size:20px;font-weight:700;color:var(--blue)}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.main-nav a{padding:9px 14px;font-size:15px;color:var(--text);border-radius:6px;font-weight:500}
.main-nav a:hover,.main-nav a.on{color:var(--orange)}
.main-nav .nav-cta{color:#fff;margin-left:8px}
.nav-toggle{display:none;background:none;border:0;font-size:26px;color:var(--blue);cursor:pointer}

/* ---------- 轮播 ---------- */
.hero-slider{position:relative;overflow:hidden;background:var(--blue)}
.hero-slide{display:none;position:relative}
.hero-slide.active{display:block}
.hero-slide img{width:100%;height:min(520px,60vw);object-fit:cover}
.hero-caption{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;padding:0 8%;background:linear-gradient(90deg,rgba(10,37,64,.72),rgba(10,37,64,.15));color:#fff}
.hero-caption h1{font-size:clamp(24px,4vw,44px);margin-bottom:14px;max-width:640px}
.hero-caption p{font-size:clamp(14px,1.6vw,18px);margin-bottom:26px;max-width:560px;color:#dbe4ef}
.hero-caption .btn{width:fit-content}
.hero-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.hero-dots button{width:11px;height:11px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer}
.hero-dots button.on{background:var(--orange)}

/* ---------- 优势卡片 ---------- */
.advantages{margin-top:-46px;position:relative;z-index:5}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 26px;text-align:center;border-top:4px solid var(--orange)}
.adv-icon{font-size:38px;margin-bottom:12px}
.adv-card h3{color:var(--blue);font-size:18px;margin-bottom:8px}
.adv-card p{font-size:14px;color:var(--muted)}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0}
.section-grey{background:var(--grey)}
.section-title{text-align:center;font-size:clamp(22px,3vw,30px);color:var(--blue);margin-bottom:36px;position:relative;padding-bottom:14px}
.section-title::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:56px;height:4px;background:var(--orange);border-radius:2px}

/* 分类 */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.cat-card{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;font-weight:600;color:var(--blue);transition:.2s}
.section-grey .cat-card{background:#fff}
.cat-card:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);box-shadow:var(--shadow)}
.cat-arrow{color:var(--orange)}

/* 产品卡 */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.prod-img img{width:100%;height:200px;object-fit:cover}
.prod-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod-name{font-weight:600;color:var(--blue);font-size:15px;line-height:1.4}
.prod-name:hover{color:var(--orange)}
.prod-tags{display:flex;flex-wrap:wrap;gap:6px}
.prod-tags span{font-size:11px;background:var(--grey);border:1px solid var(--border);border-radius:4px;padding:2px 8px;color:var(--muted)}
.prod-meta{display:flex;justify-content:space-between;align-items:center}
.prod-price{color:var(--orange);font-weight:700;font-size:17px}
.prod-moq{font-size:12px;color:var(--muted)}
.prod-body .btn{margin-top:auto}

/* 工厂 */
.factory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.factory-grid img{border-radius:var(--radius);height:220px;width:100%;object-fit:cover}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;text-align:center}
.stat strong{display:block;font-size:30px;color:var(--orange)}
.stat span{font-size:14px;color:var(--muted)}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.case-card img{height:180px;width:100%;object-fit:cover}
.case-body{padding:18px}
.case-country{display:inline-block;background:var(--blue);color:#fff;font-size:12px;padding:2px 10px;border-radius:20px;margin-bottom:8px}
.case-body h3{font-size:16px;color:var(--blue);margin-bottom:6px}
.case-body p{font-size:13px;color:var(--muted)}

/* 新闻 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.2s;display:block}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card img{height:170px;width:100%;object-fit:cover}
.news-body{padding:16px}
.news-body time,.news-date{font-size:12px;color:var(--muted)}
.news-body h3{font-size:15px;color:var(--blue);margin:6px 0}
.news-body p{font-size:13px;color:var(--muted)}
.read-more{font-size:13px;color:var(--orange);font-weight:600}
.news-detail-grid{display:grid;grid-template-columns:2fr 1fr;gap:30px}
.news-cover{border-radius:var(--radius);margin:16px 0}
.news-side ul{list-style:none;margin-top:12px}
.news-side li{padding:10px 0;border-bottom:1px solid var(--border)}
.news-side a{color:var(--blue);font-size:14px}
.news-side a:hover{color:var(--orange)}

/* 快速报价 */
.quote-section{background:linear-gradient(135deg,var(--blue),var(--blue-3));color:#fff}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.quote-intro h2{font-size:28px;margin-bottom:12px}
.quote-intro p{color:#c9d6e5;margin-bottom:20px}
.quote-form{background:#fff;border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:12px}
.quote-form input,.quote-form textarea{padding:11px 14px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit}

/* ---------- 内页 ---------- */
.page-banner{background:linear-gradient(120deg,var(--blue),var(--blue-3));color:#fff;padding:44px 0}
.page-banner h1{font-size:clamp(22px,3vw,32px)}
.breadcrumb{font-size:14px}
.breadcrumb a{color:#c9d6e5}
.breadcrumb a:hover{color:var(--orange)}

/* 筛选栏 */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.filter-bar select,.filter-bar input{padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;flex:1;min-width:130px}
.filter-bar .btn{flex:0 0 auto}

/* 分页 */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:36px}
.pagination a{padding:8px 14px;border:1px solid var(--border);border-radius:6px;color:var(--blue)}
.pagination a.on,.pagination a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* 产品详情 */
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.pd-main{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.pd-main img{width:100%;height:420px;object-fit:cover}
.pd-thumbs{display:flex;gap:10px;margin-top:12px}
.pd-thumbs img{width:80px;height:80px;object-fit:cover;border:1px solid var(--border);border-radius:6px;cursor:pointer}
.pd-thumbs img:hover{border-color:var(--orange)}
.pd-info h1{font-size:26px;color:var(--blue);margin-bottom:12px}
.pd-summary{color:var(--muted);margin-bottom:18px}
.pd-table{width:100%;border-collapse:collapse;margin-bottom:22px}
.pd-table td{padding:10px 12px;border:1px solid var(--border);font-size:14px}
.pd-table td:first-child{background:var(--grey);width:130px;color:var(--muted)}
.pd-price{color:var(--orange);font-weight:700;font-size:18px}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap}
.pd-detail{margin-top:56px}
.params-table table{width:100%;border-collapse:collapse;margin-bottom:20px}
.params-table td,.params-table th{padding:10px 14px;border:1px solid var(--border);font-size:14px;text-align:left}
.params-table td:first-child{background:var(--grey);width:200px}
.rich-text{font-size:15px;line-height:1.9}
.rich-text h3{color:var(--blue);margin:18px 0 8px}
.rich-text p{margin-bottom:12px}

/* 关于我们 */
.about-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.about-block .section-title{text-align:left}
.about-block .section-title::after{left:0;transform:none}

/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-list{list-style:none;margin:20px 0;display:flex;flex-direction:column;gap:12px;font-size:15px}
.reply-badge{color:var(--orange);font-weight:700}
.map-box{margin-top:24px}
.map-box iframe{border-radius:var(--radius);margin-top:10px}
.contact-form,.order-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;font-weight:600;margin-bottom:5px;color:var(--blue)}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:2px solid rgba(255,122,26,.3);border-color:var(--orange)}
.contact-form h3,.order-form h3{color:var(--blue);margin:6px 0 14px;font-size:17px}
.pay-type{display:flex;gap:18px;flex-wrap:wrap}
.pay-type label{display:flex;align-items:center;gap:6px;font-weight:400}

/* 下单 / 结算 */
.order-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:start}
.order-preview{background:var(--grey);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:sticky;top:90px}
.order-preview h3{color:var(--blue);margin-bottom:16px}
.op-prod{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.op-prod img{width:70px;height:70px;object-fit:cover;border-radius:8px}
.op-prod span{font-weight:600;color:var(--blue);font-size:14px}
.op-table{width:100%;border-collapse:collapse}
.op-table td{padding:8px 0;font-size:14px;border-bottom:1px dashed var(--border)}
.op-table td:last-child{text-align:right;font-weight:600}
.op-due td{color:var(--orange);font-size:17px}
.op-note{font-size:12px;color:var(--muted);margin-top:10px}
.checkout-box{max-width:720px;margin:0 auto}
.order-info-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;margin-bottom:24px}
.order-info-card h3{color:var(--blue);margin-bottom:14px}
.gateway-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.gateway-form h3{color:var(--blue);margin-bottom:16px}
.gateway-item{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:8px;padding:14px 16px;margin-bottom:10px;cursor:pointer}
.gateway-item:hover{border-color:var(--orange)}
.gw-name{font-weight:600;color:var(--blue)}

/* 支付结果 */
.result-box{max-width:640px;margin:40px auto;text-align:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:48px 30px;box-shadow:var(--shadow)}
.result-icon{width:70px;height:70px;border-radius:50%;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;font-size:34px;color:#fff}
.result-box.ok .result-icon{background:#27ae60}
.result-box.fail .result-icon{background:#e74c3c}
.result-box h1{font-size:22px;color:var(--blue);margin-bottom:14px}
.result-box p{margin-bottom:8px;color:var(--muted)}
.result-actions{display:flex;gap:12px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.bank-info{background:var(--grey);border:1px solid var(--border);border-radius:8px;padding:18px;text-align:left;white-space:pre-wrap;font-size:14px;margin:14px 0}

/* 状态徽章 */
.badge{display:inline-block;padding:3px 12px;border-radius:20px;font-size:12px;font-weight:600}
.badge-pending{background:#fff3e0;color:#e65100}
.badge-deposit_paid{background:#e3f2fd;color:#1565c0}
.badge-paid,.badge-success{background:#e8f8ee;color:#1e7e34}
.badge-completed{background:#e0f2f1;color:#00695c}
.badge-cancelled,.badge-failed{background:#fdecea;color:#c0392b}
.badge-new{background:#fff3e0;color:#e65100}
.badge-replied{background:#e8f8ee;color:#1e7e34}
.badge-closed{background:#eceff1;color:#546e7a}

/* 页脚 */
.site-footer{background:var(--blue);color:#b8c6d8;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding:52px 16px 36px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col a{display:block;padding:4px 0;font-size:14px;color:#b8c6d8}
.footer-col a:hover{color:var(--orange)}
.footer-col p{font-size:14px;padding:4px 0}
.footer-slogan-brand{color:var(--orange)}
.footer-bottom{border-top:1px solid var(--blue-3);padding:16px 0;text-align:center;font-size:13px}

/* WhatsApp 浮窗 */
.whatsapp-float{position:fixed;right:22px;bottom:22px;width:56px;height:56px;background:#25d366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.25);z-index:60;transition:.2s}
.whatsapp-float:hover{transform:scale(1.08)}

/* Cookie 弹窗 */
.cookie-bar{position:fixed;left:0;right:0;bottom:0;background:var(--blue);color:#dbe4ef;padding:16px;display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;z-index:70;font-size:14px;box-shadow:0 -4px 20px rgba(0,0,0,.2)}
.cookie-bar a{color:var(--orange)}
.cookie-btns{display:flex;gap:10px}

/* Flash 消息 */
.flash{max-width:720px;margin:16px auto;padding:14px 20px;border-radius:8px;display:flex;justify-content:space-between;align-items:center;font-size:14px;box-shadow:var(--shadow)}
.flash-success{background:#e8f8ee;color:#1e7e34;border:1px solid #b9e6c9}
.flash-error{background:#fdecea;color:#c0392b;border:1px solid #f5c6c0}
.flash button{background:none;border:0;font-size:18px;cursor:pointer;color:inherit}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:12px 16px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav .nav-cta{margin:8px 0 0}
  .header-main{position:relative}
  .adv-grid,.cat-grid,.case-grid,.news-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .factory-grid{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:24px}
  .pd-grid,.order-grid,.contact-grid,.quote-grid,.about-cols,.news-detail-grid{grid-template-columns:1fr}
  .order-preview{position:static}
  .advantages{margin-top:0;padding-top:20px}
  .section{padding:44px 0}
  .topbar-item{display:none}
  .topbar-right{margin-left:0;width:100%;justify-content:flex-end}
}
@media (max-width:480px){
  .prod-grid{grid-template-columns:1fr}
  .hero-slide img{height:70vw}
}

/* ---- 合作企业名录 ---- */
.suppliers-intro{color:#5b6b7f;margin:0 0 18px;line-height:1.8;max-width:900px}
.chip-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chip{display:inline-block;padding:8px 18px;border-radius:999px;border:1px solid #d5dde8;color:#33475b;background:#fff;font-size:14px;transition:all .2s}
.chip:hover{border-color:#ff7a1a;color:#ff7a1a}
.chip.on{background:#0a2540;border-color:#0a2540;color:#fff}
.ent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:20px}
.ent-card{background:#fff;border:1px solid #e4eaf2;border-radius:12px;padding:20px;box-shadow:0 2px 10px rgba(10,37,64,.05);transition:box-shadow .2s,transform .2s}
.ent-card:hover{box-shadow:0 8px 24px rgba(10,37,64,.1);transform:translateY(-2px)}
.ent-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:12px}
.ent-head h3{font-size:16px;color:#0a2540;margin:0;line-height:1.5}
.ent-halal{flex:none;background:#e8f7ee;color:#1a9c4b;border:1px solid #b7e4c7;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;letter-spacing:.5px}
.ent-row{display:flex;gap:10px;font-size:13.5px;line-height:1.7;padding:6px 0;border-top:1px dashed #eef2f7}
.ent-row:first-of-type{border-top:none}
.ent-label{flex:none;width:118px;color:#8a97a8}
.ent-row>span:last-child{color:#33475b;flex:1}
.ent-price{color:#ff7a1a!important;font-weight:600}
.ent-tags{display:flex;flex-wrap:wrap;gap:6px}
.ent-tag{background:#f0f5fb;color:#0a2540;font-size:12px;padding:2px 10px;border-radius:999px}
@media(max-width:640px){.ent-grid{grid-template-columns:1fr}.ent-label{width:96px}}