/* ============ 基础 ============ */
:root{
  --primary:#0d4f9e; --primary-dark:#093a75; --accent:#f39c12;
  --text:#2b2f36; --muted:#6b7280; --bg:#fff; --bg-alt:#f4f7fb; --line:#e5e9f0;
  --radius:10px; --shadow:0 6px 24px rgba(13,79,158,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Arial,"Helvetica Neue","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1200px,92%);margin:0 auto}
.btn{display:inline-block;padding:12px 28px;border-radius:6px;font-weight:600;border:2px solid transparent;cursor:pointer;transition:.25s;font-size:15px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{border-color:#fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--primary)}
.btn-light{background:#fff;color:var(--primary)}
.section .btn-outline{border-color:var(--primary);color:var(--primary)}
.section .btn-outline:hover{background:var(--primary);color:#fff}
.section{padding:64px 0}
.section-alt{background:var(--bg-alt)}
.sec-title{font-size:30px;font-weight:800;color:var(--primary-dark);position:relative;padding-bottom:14px;margin-bottom:28px}
.sec-title::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:4px;background:var(--accent);border-radius:2px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:8px}
.sec-more{color:var(--primary);font-weight:600;white-space:nowrap}
.empty-tip{color:var(--muted);padding:40px 0;text-align:center}

/* ============ 顶栏与导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.topbar{background:var(--primary-dark);color:#dce8f7;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:12px;flex-wrap:wrap;padding:4px 0}
.tb-item{margin-right:18px;display:inline-block}
.lang-switch a{display:inline-block;padding:4px 9px;margin-left:2px;border-radius:4px;color:#dce8f7}
.lang-switch a.active,.lang-switch a:hover{background:#fff;color:var(--primary-dark);font-weight:700}
.navbar{border-bottom:1px solid var(--line)}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:20px}
.logo img{max-height:56px;width:auto}
.logo-text{font-size:24px;font-weight:800;color:var(--primary)}
.main-nav ul{display:flex;list-style:none;align-items:center;gap:6px}
.main-nav a{display:block;padding:10px 16px;font-weight:600;color:var(--text);border-radius:6px;transition:.2s}
.main-nav a:hover,.main-nav a.active{color:var(--primary);background:var(--bg-alt)}
.nav-cta a{background:var(--accent)!important;color:#fff!important;border-radius:6px}
.nav-cta a:hover{filter:brightness(1.08)}
.menu-toggle{display:none;font-size:26px;background:none;border:none;color:var(--primary);cursor:pointer}

/* ============ 首页轮播 ============ */
.hero{position:relative}
.hero-slide{display:none;min-height:460px;background-size:cover;background-position:center;position:relative}
.hero-slide.active{display:flex;align-items:center}
.hero-slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,30,60,.72) 0%,rgba(6,30,60,.35) 60%,rgba(6,30,60,.05) 100%)}
.hero-caption{position:relative;color:#fff;padding:70px 0;max-width:720px}
.hero-caption h1{font-size:40px;font-weight:800;line-height:1.25;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.35)}
.hero-caption p{font-size:18px;margin-bottom:26px;color:#e8eef7}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:9px}
.hero-dots .dot{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:.2s}
.hero-dots .dot.active{background:var(--accent);transform:scale(1.25)}

/* ============ 分类 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:22px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-align:center;transition:.25s}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.cat-img{height:150px;overflow:hidden;background:var(--bg-alt);display:flex;align-items:center;justify-content:center}
.cat-img img{width:100%;height:100%;object-fit:cover}
.cat-card h3{padding:14px 10px;font-size:16px;color:var(--primary-dark)}

/* ============ 产品 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:24px;margin-top:20px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.prod-img{display:block;height:210px;overflow:hidden;background:var(--bg-alt)}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:.35s}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.prod-name{font-size:16px;line-height:1.4;min-height:44px}
.prod-name a:hover{color:var(--primary)}
.prod-price{color:var(--accent);font-weight:800;font-size:17px}
.prod-link{margin-top:auto;color:var(--primary);font-weight:600;font-size:14px}

/* ============ 面包屑 / 内页横幅 ============ */
.page-banner{background:linear-gradient(120deg,var(--primary-dark),var(--primary));color:#fff;padding:46px 0}
.page-banner h1{font-size:30px;font-weight:800;margin-bottom:8px}
.breadcrumb{font-size:14px;color:#c8d9ee}
.breadcrumb a{color:#e8f0fa}
.breadcrumb a:hover{text-decoration:underline}

/* ============ 布局 ============ */
.layout-side{display:grid;grid-template-columns:250px 1fr;gap:34px}
.sidebar{align-self:start;position:sticky;top:120px}
.side-title{font-size:18px;color:var(--primary-dark);border-bottom:2px solid var(--accent);padding-bottom:10px;margin-bottom:14px}
.cat-menu{list-style:none}
.cat-menu a{display:block;padding:10px 12px;border-radius:6px;color:var(--text);margin-bottom:4px}
.cat-menu a:hover,.cat-menu a.active{background:var(--primary);color:#fff}
.narrow{max-width:860px}

/* ============ 详情 ============ */
.detail-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;margin-bottom:46px}
.detail-main{width:100%;border-radius:var(--radius);border:1px solid var(--line);background:var(--bg-alt)}
.detail-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.detail-thumbs img{width:84px;height:84px;object-fit:cover;border-radius:6px;border:1px solid var(--line);cursor:pointer}
.detail-thumbs img:hover{border-color:var(--primary)}
.detail-title{font-size:27px;color:var(--primary-dark);margin-bottom:14px;line-height:1.35}
.detail-price{font-size:22px;color:var(--accent);font-weight:800;margin-bottom:8px}
.detail-moq{color:var(--muted);margin-bottom:14px}
.detail-summary{color:var(--muted);margin-bottom:22px}
.detail-btns{display:flex;gap:14px;flex-wrap:wrap}
.detail-btns .btn-outline{border-color:var(--primary);color:var(--primary)}
.detail-btns .btn-outline:hover{background:var(--primary);color:#fff}
.detail-block{margin-top:34px}
.spec-table{width:100%;border-collapse:collapse;max-width:760px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 14px;text-align:left;font-size:15px}
.spec-table th{background:var(--bg-alt);width:220px;color:var(--primary-dark)}
.rich-content img{border-radius:8px;margin:14px 0}
.rich-content p{margin-bottom:14px}
.rich-content h2,.rich-content h3{margin:22px 0 12px;color:var(--primary-dark)}

/* ============ 新闻 ============ */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-top:20px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.news-img{height:180px;overflow:hidden;background:var(--bg-alt)}
.news-img img{width:100%;height:100%;object-fit:cover}
.news-body{padding:16px;display:flex;flex-direction:column;gap:8px}
.news-body time{color:var(--accent);font-size:13px;font-weight:600}
.news-body h3{font-size:16px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article{background:#fff}
.article-date{color:var(--accent);font-weight:700}
.article-cover{border-radius:var(--radius);margin:16px 0}
.article-back{margin-top:26px}

/* ============ 关于 / CTA ============ */
.about-block{display:grid;grid-template-columns:1fr;gap:30px}
.about-content{color:var(--muted);margin-bottom:20px}
.cta-strip{background:linear-gradient(120deg,var(--primary-dark),var(--primary));color:#fff;padding:56px 0;text-align:center}
.cta-inner h2{font-size:28px;margin-bottom:12px}
.cta-inner p{max-width:640px;margin:0 auto 22px;color:#dbe7f5}

/* ============ 联系 / 表单 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:44px}
.contact-list{list-style:none;margin-top:18px}
.contact-list li{padding:10px 0;border-bottom:1px dashed var(--line)}
.inquiry-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.inquiry-form h3{color:var(--primary-dark);margin-bottom:18px;font-size:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.inquiry-form input,.inquiry-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:6px;font-size:15px;font-family:inherit}
.inquiry-form input:focus,.inquiry-form textarea:focus{outline:none;border-color:var(--primary)}
.inquiry-form textarea{margin-bottom:16px;resize:vertical}
.inquiry-form input[name="subject"]{margin-bottom:14px}
.form-tip{margin-top:12px;font-size:14px;color:var(--primary);min-height:20px}

/* ============ 分页 ============ */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.pagination a,.pagination .cur{display:inline-block;min-width:40px;padding:9px 12px;text-align:center;border:1px solid var(--line);border-radius:6px;font-weight:600}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ============ 404 ============ */
.nf-box{text-align:center;padding:80px 0}
.nf-code{font-size:110px;font-weight:900;color:var(--primary);line-height:1}
.nf-box h1{margin:16px 0 28px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{background:#10263f;color:#b9c8da;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1.1fr;gap:40px;padding:54px 0 40px}
.f-col h4{color:#fff;font-size:17px;margin-bottom:16px;position:relative;padding-bottom:10px}
.f-col h4::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;background:var(--accent)}
.f-desc{font-size:14px;line-height:1.7}
.f-col ul{list-style:none}
.f-col li{margin-bottom:9px;font-size:14px}
.f-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:13px;text-align:center;color:#8fa3ba}

/* ============ RTL（阿拉伯语） ============ */
[dir="rtl"] .sec-title::after,[dir="rtl"] .f-col h4::after{left:auto;right:0}
[dir="rtl"] .spec-table th,[dir="rtl"] .spec-table td{text-align:right}

/* ============ 响应式 ============ */
@media (max-width:992px){
  .layout-side{grid-template-columns:1fr}
  .sidebar{position:static}
  .detail-grid,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .menu-toggle{display:block}
  .main-nav{position:fixed;top:0;right:-280px;width:264px;height:100vh;background:#fff;box-shadow:-6px 0 24px rgba(0,0,0,.15);transition:.3s;padding:70px 18px 20px;z-index:99}
  body.menu-open .main-nav{right:0}
  .main-nav ul{flex-direction:column;align-items:stretch}
  .hero-caption h1{font-size:28px}
  .hero-slide{min-height:360px}
  .sec-title{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .topbar-contact{display:none}
  .float-widgets{right:12px;bottom:16px}
  .float-btn{width:48px;height:48px}
}

/* ============ Cookie 同意横幅（GDPR） ============ */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:300;background:#1f2937;color:#e5e7eb;box-shadow:0 -4px 20px rgba(0,0,0,.25)}
.cookie-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0;flex-wrap:wrap}
.cookie-inner p{font-size:14px;line-height:1.6;max-width:760px}
.cookie-inner a{color:#93c5fd;text-decoration:underline}
.cookie-btns{display:flex;gap:10px;flex-wrap:wrap}
.btn-cookie{padding:9px 22px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.2s}
.btn-cookie.solid{background:var(--accent);color:#fff}
.btn-cookie.solid:hover{filter:brightness(1.08)}
.btn-cookie.ghost{background:transparent;color:#cbd5e1;border-color:#4b5563}
.btn-cookie.ghost:hover{background:#374151}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.legal-links a{color:#a9bcd2;margin-left:16px}
.legal-links a:hover{color:#fff;text-decoration:underline}

/* ============ 悬浮小部件（WhatsApp / YouTube） ============ */
.float-widgets{position:fixed;right:20px;bottom:24px;z-index:200;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.float-btn{position:relative;display:flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:50%;box-shadow:0 4px 14px rgba(0,0,0,.25);transition:transform .2s,box-shadow .2s;text-decoration:none}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 7px 20px rgba(0,0,0,.3)}
.float-wa{background:#25d366}
.float-wa:hover{background:#1fb757}
.float-yt{background:#ff0000;width:46px;height:46px;margin-right:4px}
.float-yt:hover{background:#d90000}
.float-wa .float-label{position:absolute;right:64px;top:50%;transform:translateY(-50%);background:#1f2937;color:#fff;font-size:13px;line-height:1;padding:8px 12px;border-radius:6px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s}
.float-wa:hover .float-label{opacity:1}
[dir="rtl"] .float-widgets{right:auto;left:20px;align-items:flex-start}
[dir="rtl"] .float-yt{margin-right:0;margin-left:4px}
[dir="rtl"] .float-wa .float-label{right:auto;left:64px}
.quote-wrap{max-width:640px;margin:0 auto}