/* RECH Machinery site */
*{box-sizing:border-box;margin:0;padding:0}
:root{--ink:#0c133d;--muted:#5b7286;--brand:#0b68a5;--brand-dark:#0a5290;--accent:#0b9bd7;--bg:#ffffff;--alt:#f1f6fb;--line:#dbe5ee;--silver-a:#fbfcfd;--silver-b:#dfe7ee;--silver-c:#c8d4dd;--steel:#9fb0bf;--steel-dark:#6d7f8e}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);line-height:1.6;background:var(--bg)}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;height:auto;min-height:64px;padding:10px 0;gap:16px;flex-wrap:wrap}
/* header 右侧动作组：搜索框 + 询价按钮 */
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
/* 多语言切换器（下拉选择器）——页头右缘，点开列出全部语言原生名 */
.lang-switcher{position:relative;margin-left:12px}
.lang-switcher .ls-trigger{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--alt);font-size:.82rem;font-weight:600;color:var(--ink);cursor:pointer;transition:background .15s,color .15s}
.lang-switcher .ls-trigger:hover{background:#fff;color:var(--brand)}
.lang-switcher .ls-flag{font-size:1rem;line-height:1}
.lang-switcher .ls-caret{font-size:.7rem;color:var(--muted)}
.lang-switcher .ls-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:190px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 34px rgba(12,19,61,.16);padding:6px;display:none;z-index:60}
.lang-switcher.open .ls-menu{display:block}
.lang-switcher .ls-item{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;font-size:.85rem;color:var(--ink);text-decoration:none;white-space:nowrap}
.lang-switcher .ls-item:hover{background:var(--alt)}
.lang-switcher .ls-item.active{background:var(--alt);color:var(--brand);font-weight:600}
.lang-switcher .ls-item .ls-check{margin-left:auto;color:var(--brand)}
/* 全站 header 搜索框：固定宽，放右侧动作组内 */
.header-search{position:relative;flex:0 0 auto;min-width:150px;max-width:250px}
.header-search .search-wrap input{padding:7px 11px;font-size:.86rem;border-radius:8px}
.header-search .search-btn{width:36px;height:36px}
.header-search .search-results{max-height:60vh;overflow:auto}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo-img{height:112px;width:112px;object-fit:contain;border-radius:8px}
/* nav 填充中部并让链接居中，logo 在左、搜索+询价在右 */
/* 仅作用于头部导航 .site-nav（勿用裸 nav，否则会连面包屑 <nav class="breadcrumb"> 一起命中） */
.site-nav{flex:1;display:flex;justify-content:center}
/* 仅作用于顶级主菜单 ul（用 > 限定直接子级）；若用 .site-nav ul 会连同嵌套的 About .dropdown-menu / Products .sub-menu 一起命中，
   其 display:flex 有更高优先级，把关闭态子菜单也显示出来 */
.site-nav > ul{display:flex;gap:22px;list-style:none}
.site-nav a{color:var(--ink);font-weight:500;font-size:.95rem}
.site-nav a.active{color:var(--brand);font-weight:700}
.btn{display:inline-block;padding:10px 22px;border-radius:8px;font-weight:600;font-size:.95rem;border:2px solid transparent;cursor:pointer}
.btn-accent{background:linear-gradient(180deg,var(--silver-a) 0%,var(--silver-b) 45%,var(--silver-c) 100%);color:var(--ink);border-color:var(--steel);box-shadow:inset 0 1px 0 #fff,0 4px 10px rgba(12,19,61,.14);text-shadow:none}
.btn-accent:hover{background:linear-gradient(180deg,#fff 0%,#eef2f6 45%,#d6dee6 100%);text-decoration:none;transform:translateY(-1px);box-shadow:inset 0 1px 0 #fff,0 7px 16px rgba(12,19,61,.2)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand);color:#fff;text-decoration:none}
.btn-lg{padding:14px 30px;font-size:1.05rem}
.header-cta{padding:8px 18px;font-size:.88rem}
/* 汉堡按钮：默认隐藏（仅 ≤1000px 显示），点击展开导航抽屉 */
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;flex:0 0 auto;border:2px solid var(--brand);border-radius:10px;background:transparent;color:var(--brand);cursor:pointer;transition:background .15s,color .15s}
.nav-toggle:hover,.nav-toggle.active{background:var(--brand);color:#fff}
/* 抽屉内 Get a Quote CTA：默认隐藏（仅 ≤1000px 抽屉展开时显示） */
.nav-cta{display:none}
 .hero{background:linear-gradient(90deg,rgba(4,24,51,.92) 0%,rgba(4,24,51,.62) 42%,rgba(4,24,51,.18) 72%,rgba(4,24,51,0) 100%),url(/assets/img/post-hero.webp) center/cover no-repeat;color:#fff;padding:96px 0 96px;position:relative}
 .hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:linear-gradient(90deg,transparent 0%,var(--silver-c) 22%,#f4f7fa 50%,var(--silver-c) 78%,transparent 100%)}
 .hero-wrap{display:flex;align-items:center;gap:44px;justify-content:space-between}
 .hero-copy{flex:1;min-width:0;max-width:760px}
 .hero-kicker{text-transform:uppercase;letter-spacing:.16em;font-size:.8rem;color:#cfe4f7;margin-bottom:14px}
 .hero h1,.hero .hero-title{font-size:2.7rem;line-height:1.15;max-width:760px;margin-bottom:18px;color:#fff}
 .hero-sub{font-size:1.15rem;max-width:720px;color:#e7f1fc;margin-bottom:28px}
 .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
 .hero-note{margin-top:26px;font-size:.92rem;color:#cfe6f8}
 @media(max-width:980px){.hero{padding:64px 0}.hero-wrap{flex-direction:column;gap:24px}.hero h1,.hero .hero-title{font-size:2.1rem}}
 @media(max-width:600px){.hero{background:linear-gradient(180deg,rgba(4,24,51,.9) 0%,rgba(4,24,51,.72) 45%,rgba(4,24,51,.25) 100%),url(/assets/img/post-hero.webp) center top/cover no-repeat;padding:52px 0 56px}.hero h1,.hero .hero-title{font-size:1.75rem}.hero-sub{font-size:1rem}}
 .section{padding:64px 0}
.section-alt{background:var(--alt)}
.section-title{font-size:1.7rem;margin-bottom:10px}
.section-title+.muted{margin-bottom:26px}
.grid{display:grid;gap:20px}
.cat-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.value-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.product-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .18s,transform .18s}
.card:hover{box-shadow:0 8px 24px rgba(28,39,51,.12);transform:translateY(-2px);text-decoration:none}
.card img{width:100%;height:190px;object-fit:contain;background:#fff;padding:10px;box-sizing:border-box}
.card-body{padding:14px 16px}
.card-body h3{font-size:.98rem;margin-bottom:6px;color:var(--ink)}
.muted{color:var(--muted)}
.sku-line{font-size:.78rem;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.oem-line{font-size:.78rem;color:var(--brand);margin-top:4px}
.brand-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.brand-chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:600;font-size:.9rem;color:var(--ink)}
.brand-chip:hover{border-color:var(--steel);color:var(--brand);text-decoration:none;box-shadow:0 3px 10px rgba(159,176,191,.35)}
.brand-count{background:var(--alt);border-radius:999px;padding:1px 9px;font-size:.75rem;color:var(--muted)}
.cat-card img{width:100%;height:150px;object-fit:contain;background:#fff;padding:10px;box-sizing:border-box;border-bottom:1px solid var(--line)}
.cat-card h3{color:var(--brand)}
.card-btn{display:inline-block;margin-top:12px;padding:9px 18px;background:linear-gradient(180deg,var(--silver-a),var(--silver-c));color:var(--ink);border:1px solid var(--steel);border-radius:8px;font-weight:600;font-size:.88rem}
.card-btn:hover{background:var(--brand-dark);text-decoration:none}
/* 行业实景海报卡（首页 Industries We Serve）：Full-bleed 照片 + 底部文字叠加 */
.ind-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.ind-card{position:relative;display:block;border-radius:14px;overflow:hidden;background:var(--ink);aspect-ratio:4/3;text-decoration:none;transition:box-shadow .18s,transform .18s}
.ind-card:hover{box-shadow:0 14px 32px rgba(12,19,61,.28);transform:translateY(-3px);text-decoration:none}
.ind-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ind-card:hover img{transform:scale(1.06)}
.ind-card::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(185deg,rgba(8,18,40,0) 28%,rgba(8,18,40,.38) 58%,rgba(8,18,40,.86) 100%)}
.ind-card.roadmap img{filter:grayscale(.35) brightness(.92)}
.ind-card.roadmap::after{background:linear-gradient(185deg,rgba(8,18,40,.12) 28%,rgba(8,18,40,.6) 100%)}
.ipc-overlay{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px 20px 22px;color:#fff;display:flex;flex-direction:column;align-items:flex-start}
.ipc-tag{background:var(--brand);color:#fff;border-radius:999px;padding:4px 12px;font-size:.72rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;margin-bottom:10px;box-shadow:0 4px 14px rgba(11,104,165,.4)}
.ind-card.roadmap .ipc-tag{background:var(--steel-dark)}
.ipc-overlay h3{color:#fff;font-size:1.32rem;margin-bottom:6px;text-shadow:0 2px 12px rgba(0,0,0,.5)}
.ipc-blurb{font-size:.92rem;color:rgba(255,255,255,.92);line-height:1.5;margin-bottom:14px;text-shadow:0 1px 8px rgba(0,0,0,.45);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ipc-btn{display:inline-block;padding:9px 18px;background:linear-gradient(180deg,var(--silver-a),var(--silver-c));color:var(--ink);border:1px solid var(--steel);border-radius:8px;font-weight:600;font-size:.88rem}
.ind-card:hover .ipc-btn{background:var(--brand-dark);color:#fff}
.ind-card.ind-oem .ipc-tag{background:linear-gradient(90deg,#c08a2e,#9c6518);box-shadow:0 4px 14px rgba(156,101,24,.4)}
.ind-card.ind-oem:hover .ipc-tag{filter:brightness(1.06)}
.ind-card.ind-oem .ipc-btn{background:linear-gradient(180deg,#e7c27b,#c08a2e);border-color:#8c5f14;color:#2a1c05}
.ind-card.ind-oem:hover .ipc-btn{background:var(--brand-dark);color:#fff}
.card-icon-svg{width:46px;height:46px;display:block;margin-bottom:12px}.mt-line{font-size:.78rem;color:var(--brand);margin-top:6px;font-weight:600}
.badge-coming{display:inline-block;background:var(--alt);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 12px;font-size:.75rem;font-weight:600;margin-top:4px}
.empty-state{text-align:center;padding:60px 24px;background:var(--alt);border:1px dashed var(--line);border-radius:12px}
.empty-state h2{color:var(--brand-dark);margin-bottom:10px}
.empty-state p{max-width:640px;margin:0 auto 22px;color:var(--muted)}
.link{font-weight:600}
.center{text-align:center;margin-top:28px}
.cta-band{background:radial-gradient(ellipse at center,rgba(4,24,51,.78) 0%,rgba(4,24,51,.92) 78%,rgba(4,24,51,.96) 100%),url(/assets/img/post-hero.webp) center/cover no-repeat;color:#fff;padding:60px 0;text-align:center;position:relative}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,transparent 0%,var(--silver-c) 22%,#f4f7fa 50%,var(--silver-c) 78%,transparent 100%)}
.cta-band h2{font-size:1.8rem;margin-bottom:10px}
.cta-band p{max-width:640px;margin:0 auto 24px;color:#e7f0fb}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.site-footer{background:#101820;color:#9fb0bf;padding:48px 0 0;font-size:.9rem;position:relative;border-top:3px solid var(--steel-dark)}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;padding-bottom:32px}
.site-footer h4{color:#fff;margin-bottom:10px}
.site-footer a{color:#9fb0bf}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #22303c;padding:16px 20px;text-align:center;color:#6d7f8e}
.page-head{background:var(--alt);padding:52px 0 44px;border-bottom:1px solid var(--line)}
.head-split{display:flex;align-items:center;gap:32px;justify-content:space-between}
.head-text{flex:1;min-width:0}
.head-scene{width:340px;height:170px;object-fit:contain;flex-shrink:0;border:1px solid var(--line);border-radius:12px;background:#fff;padding:8px;box-sizing:border-box}
@media(max-width:820px){.head-split{flex-direction:column;gap:18px}.head-scene{width:100%;max-width:340px}}
.page-head h1{font-size:2.1rem;margin-bottom:10px}
.page-head .muted{max-width:760px}
.breadcrumb{background:var(--alt);padding:12px 0;font-size:.85rem;color:var(--muted);border-bottom:1px solid var(--line)}
.breadcrumb a{color:var(--muted)}
.breadcrumb .sep{margin:0 8px;color:#b7c2cc}
.product-detail{padding:40px 0}
.pd-top{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;margin-bottom:40px}
.pd-img img{width:100%;height:auto;object-fit:contain;border-radius:12px;border:1px solid var(--line);background:#fff}
.brand-tag{display:inline-block;background:#e7f0fb;color:var(--brand);font-weight:700;font-size:.78rem;padding:4px 12px;border-radius:999px;margin-bottom:12px}
.pd-info h1{font-size:1.9rem;line-height:1.2;margin-bottom:10px}
.sku-big{margin-bottom:14px;font-size:1.05rem}
.sku-big strong{font-family:ui-monospace,Menlo,monospace;color:var(--brand)}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.pd-points{margin:8px 0 0 18px;color:var(--muted)}
.specs-block{margin:0 0 40px}
.specs-block h2{font-size:1.35rem;margin-bottom:12px}
/* 目录申请 PDF 按钮（站内不放任何 PDF 文件，仅作线索收集入口） */
.pdf-cta{margin:22px 0 26px}
.pdf-btn{display:inline-flex;align-items:center;gap:12px;padding:12px 20px;border:2px solid transparent;border-radius:12px;background:linear-gradient(135deg,#c8102e,#a00d24);color:#fff;font-weight:600;font-size:.95rem;cursor:pointer;box-shadow:0 6px 18px rgba(200,16,46,.22);transition:transform .15s,box-shadow .15s,filter .15s}
.pdf-btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(200,16,46,.3);filter:brightness(1.05)}
.pdf-ico{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:#fff;color:#c8102e;font-weight:800;font-size:.62rem;letter-spacing:.02em;flex:0 0 auto}
.pdf-ico-lg{width:48px;height:48px;font-size:.72rem;border-radius:12px}
.pdf-txt{white-space:nowrap}
.pdf-arrow{font-size:.82rem;opacity:.95;border-bottom:1px solid rgba(255,255,255,.6);padding-bottom:1px;margin-left:auto}
/* 目录申请弹窗 */
.pdf-booklet{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:20px}
.pdf-booklet[hidden]{display:none}
.pdf-booklet-mask{position:absolute;inset:0;background:rgba(15,23,32,.6);backdrop-filter:blur(2px)}
.pdf-booklet-card{position:relative;background:#fff;border-radius:18px;width:100%;max-width:560px;max-height:92vh;overflow:auto;padding:28px 26px;box-shadow:0 30px 80px rgba(15,23,32,.35);animation:pdfBookletIn .22s ease}
@keyframes pdfBookletIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.pdf-booklet-x{position:absolute;top:14px;right:16px;width:34px;height:34px;border:none;background:var(--alt);border-radius:50%;font-size:1.3rem;line-height:1;color:var(--muted);cursor:pointer;transition:background .15s}
.pdf-booklet-x:hover{background:#eee}
.pdf-booklet-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px;padding-right:34px}
.pdf-booklet-head h3{font-size:1.25rem;margin:0 0 6px}
.pdf-booklet-head .pdf-ico{margin-top:2px}
.pdf-booklet-success{text-align:center;padding:26px 8px}
.pdf-ok{width:64px;height:64px;border-radius:50%;background:#1a9e50;color:#fff;font-size:2rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.pdf-booklet-success h3{font-size:1.3rem;margin-bottom:8px}
.pdf-booklet-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.cta-band{background:radial-gradient(ellipse at center,rgba(4,24,51,.82) 0%,rgba(4,24,51,.94) 78%,rgba(4,24,51,.97) 100%),url(/assets/img/post-hero.webp) center top/cover no-repeat;padding:48px 0}.cta-band h2{font-size:1.5rem}}
@media(max-width:600px){.pdf-booklet-form .form-row{grid-template-columns:1fr}.pdf-btn{width:100%;justify-content:flex-start}.pdf-arrow{margin-left:auto}}
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.spec-table th{background:linear-gradient(180deg,#f4f7fa,var(--silver-c));font-weight:600;color:var(--ink)}
.spec-table tbody tr:nth-child(even){background:#fafcfd}
.oem-table td:first-child{white-space:nowrap}
.oem-table td:nth-child(2){font-family:ui-monospace,Menlo,monospace}
.menu-group-label{display:block;padding:8px 12px 4px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.has-sub > a{padding-right:26px}
.has-sub > a::after{content:"▾";position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:.8em}
.sub-menu{display:none;position:static;min-width:100%;background:transparent;border:none;box-shadow:none;border-left:3px solid var(--brand);margin:2px 0 6px 8px;padding:2px 0 2px 10px;max-height:none;overflow:visible}
.dropdown-menu li.open > .sub-menu{display:block}
.sub-menu a{font-size:.85rem}
.menu-divider{border-top:1px solid var(--line);margin:6px 0}
.browse-tabs{display:flex;gap:8px;margin:0 0 26px;border-bottom:2px solid var(--line);padding-bottom:0}
.browse-tabs .tab{display:inline-block;padding:10px 20px;font-weight:600;font-size:.95rem;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-2px}
.browse-tabs .tab.active{color:var(--brand);border-bottom-color:var(--brand)}
.brand-link{color:var(--brand-dark)}
.filters{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}
.filters input,.filters select{padding:10px 14px;border:1px solid var(--line);border-radius:8px;font-size:.95rem;min-width:220px}
/* 站内即时搜索 */
.site-search{position:relative;max-width:560px}
/* 后置覆盖：header 搜索框必须窄于 .site-search 的 560px（同特异性下后声明的规则胜出） */
.header-search{max-width:250px}
.search-wrap{position:relative;display:flex;gap:10px}
.search-wrap input{flex:1;min-width:0;padding:12px 16px;border:1px solid var(--line);border-radius:10px;font-size:1rem;background:#fff;transition:border-color .15s,box-shadow .15s}
.search-wrap input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(207,31,35,.12)}
.search-wrap input::placeholder{color:var(--muted)}
.search-btn{flex:0 0 auto;align-self:center;padding:0;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:2px solid var(--brand);background:transparent;color:var(--brand);cursor:pointer;transition:background .15s,color .15s}
.search-btn:hover{background:var(--brand);color:#fff}
.search-btn svg{display:block}
.search-results{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 34px rgba(28,39,51,.16);z-index:60;overflow:hidden;display:none}
.search-result{display:flex;flex-direction:column;padding:11px 16px;border-bottom:1px solid var(--line);text-decoration:none}
.search-result:last-child{border-bottom:none}
.search-result:hover{background:var(--alt)}
.search-result:hover .sr-title{color:var(--brand)}
.sr-title{font-weight:600;font-size:.9rem;color:var(--ink)}
.sr-meta{font-size:.78rem;color:var(--muted);margin-top:2px}
.search-empty,.search-more{padding:14px 16px;font-size:.85rem;color:var(--muted);line-height:1.5}
.search-more{display:block;border-top:1px solid var(--line);text-align:center;font-size:.82rem;font-weight:600;color:var(--brand);text-decoration:none}
.search-more:hover{background:var(--alt);text-decoration:underline}
@media(max-width:820px){.search-wrap input{font-size:16px}}
.cat-title{font-size:1.3rem;margin:8px 0 18px;display:flex;align-items:center;gap:10px}
.cat-title .count{background:var(--alt);border-radius:999px;padding:2px 12px;font-size:.8rem;color:var(--muted)}
.cat-group{margin-bottom:44px}
.about-body h2{margin:28px 0 12px;color:var(--brand-dark)}
.about-body p,.about-body li{margin-bottom:10px}
.about-body ul{margin-left:20px}
.contact-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.contact-card h3{color:var(--brand-dark)}
.contact-card li{margin-left:18px;margin-bottom:6px}
.brands-table td:first-child{font-weight:600}
.brand-block{border-bottom:1px solid var(--line)}
.brand-block-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.brand-block-head h2{font-size:1.5rem;color:var(--brand-dark)}
.brand-desc{margin-bottom:18px;max-width:760px}
.dropdown{position:relative}
.dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:210px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px rgba(28,39,51,.14);padding:8px;z-index:100;max-height:70vh;overflow:auto}
.dropdown:hover .dropdown-menu,.dropdown.open .dropdown-menu{display:block}
.dropdown-menu li{display:block}
.dropdown-menu a{display:block;padding:8px 12px;border-radius:8px;font-size:.9rem;color:var(--ink)}
.dropdown-menu a:hover{background:var(--alt);color:var(--brand);text-decoration:none}
.drop-toggle{cursor:pointer;white-space:nowrap}
.mega-menu{display:none;position:absolute;top:100%;left:0;width:max-content;min-width:320px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 34px rgba(28,39,51,.16);padding:8px 12px;z-index:100;text-align:left}
.dropdown:hover .mega-menu,.dropdown.open .mega-menu{display:flex;gap:6px}
.mega-menu .has-sub{position:relative}
.mega-menu .has-sub>a{display:block;padding:9px 26px 9px 14px;border-radius:8px;font-size:.9rem;font-weight:600;color:var(--ink);white-space:nowrap}
.mega-menu .has-sub>a:hover{background:var(--alt);color:var(--brand);text-decoration:none}
.mega-menu .sub-menu{display:none;position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 28px rgba(28,39,51,.16);padding:6px}
.mega-menu .has-sub:hover>.sub-menu,.mega-menu .has-sub.open>.sub-menu{display:block}
.mega-menu .sub-menu a{display:block;padding:6px 12px;border-radius:6px;font-size:.86rem;color:var(--ink)}
.mega-menu .sub-menu a:hover{background:var(--alt);color:var(--brand);text-decoration:none}
.blog-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.blog-card img{width:100%;height:170px;object-fit:cover;padding:0;border-bottom:1px solid var(--line);border-radius:12px 12px 0 0}
.blog-cover{width:100%;border-radius:12px;border:1px solid var(--line);margin-bottom:24px}
.blog-card h3{font-size:1.05rem;margin-bottom:6px}
.blog-date{font-size:.78rem;color:var(--muted);margin-bottom:8px}
.blog-content{max-width:820px}
.blog-content h1{font-size:2rem;margin-bottom:8px}
.blog-meta{font-size:.85rem;color:var(--muted);margin-bottom:22px}
.blog-content h2{font-size:1.4rem;color:var(--brand-dark);margin:26px 0 10px}
.blog-content h3{font-size:1.15rem;margin:20px 0 8px}
.blog-content p{margin-bottom:12px}
.blog-content ul,.blog-content ol{margin:0 0 14px 22px}
.blog-content li{margin-bottom:6px}
.blog-content blockquote{border-left:4px solid var(--brand);background:var(--alt);padding:12px 16px;margin:16px 0;border-radius:0 8px 8px 0}
.blog-content blockquote p{margin:0}
.blog-content strong{color:var(--ink)}
.tag{display:inline-block;background:var(--alt);border-radius:999px;padding:2px 10px;font-size:.75rem;color:var(--muted);margin-left:6px}
.cap-block{border-bottom:1px solid var(--line);padding:22px 0}
.cap-block:last-child{border-bottom:none}
.cap-block-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.cap-block-head h2{font-size:1.4rem;color:var(--brand-dark)}
.cap-num{font-family:ui-monospace,Menlo,monospace;font-size:.95rem;color:#fff;background:var(--brand);border-radius:8px;padding:4px 10px}
.cap-block p{margin-bottom:8px;max-width:860px}
.contact-wrap{display:grid;grid-template-columns:340px 1fr;gap:26px;align-items:start}
.contact-side{display:grid;gap:16px}
.contact-main .form-card .card-body{padding:22px 24px}
.contact-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px;color:var(--ink)}
.contact-form input,.contact-form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:.95rem;font-family:inherit;background:#fff}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--brand)}
.form-note{margin-top:10px;font-size:.82rem}
@media(max-width:820px){.contact-wrap{grid-template-columns:1fr}.contact-form .form-row{grid-template-columns:1fr}}
.cert-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin:14px 0 20px}
.cert-grid .card h3{color:var(--brand-dark);font-size:1rem}
.disclaimer{font-size:.8rem;color:var(--muted);line-height:1.55;border-top:1px solid var(--line);padding-top:12px;margin-top:12px}
.footer-disclaimer{border-top:1px solid #22303c;padding:20px 20px 0;color:#8fa2b1}
.footer-disclaimer .disclaimer{border-top:none;padding-top:0;margin-top:0;color:#8fa2b1}
.detail-disclaimer{margin:8px 0 36px;padding:16px 18px;background:var(--alt);border-radius:10px}
.related-list{list-style:none;padding:0;margin:0}
.related-list li{padding:10px 0;border-bottom:1px solid var(--line)}
.related-list li:last-child{border-bottom:none}
.rel-date{font-size:.78rem;color:var(--muted);margin-right:8px}
.rel-title{font-weight:600;color:var(--brand)}
.rel-title:hover{text-decoration:underline}
.detail-disclaimer .disclaimer{border-top:none;padding-top:0;margin-top:0}
@media(max-width:820px){.hero h1{font-size:2rem}.pd-top{grid-template-columns:1fr}}
/* ≤1000px（手机+平板）：页头单行 logo+搜索+汉堡；导航变抽屉式，顶级 Products/About 手风琴展开分类 */
@media(max-width:1000px){
  .header-inner{flex-wrap:nowrap;gap:12px}
  .logo-img{height:84px;width:84px}
  .header-actions{flex:1;margin-left:0;min-width:0}
  .header-search{flex:1 1 auto;max-width:none;min-width:0}
  .header-search .search-wrap input{width:100%}
  .header-cta{display:none}
  .lang-switcher{margin-left:auto;flex:0 0 auto}
  .nav-toggle{display:inline-flex}
  /* 抽屉：absolute 整宽，默认隐藏，.nav-open 显示（仅作用于 .site-nav，勿用裸 nav） */
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(0,0,0,.12);display:none;flex-direction:column;padding:10px 20px 20px;z-index:120;height:auto}
  .site-header.nav-open .site-nav{display:flex}
  .site-nav > ul{flex-direction:column;width:100%;gap:0}
  .site-nav > ul > li{width:100%}
  .site-nav > ul > li > a{display:block;padding:13px 0;border-bottom:1px solid var(--line);font-size:1rem}
  .nav-cta{display:inline-flex;margin-top:16px;justify-content:center}
  /* 手风琴：About dropsn / Products mega 改为静态展开 */
  .dropdown-menu{position:static;display:none;box-shadow:none;border:1px solid var(--line);border-top:none;border-radius:0;width:100%;min-width:0;padding:2px 0;margin:0;max-height:none;overflow:visible}
  .dropdown.open .dropdown-menu{display:block}
  .mega-menu{position:static;display:none;width:100%;min-width:0;box-shadow:none;border:1px solid var(--line);border-top:none;border-radius:0;background:var(--alt);flex-direction:column;padding:4px 0;text-align:left}
  .dropdown.open .mega-menu{display:flex}
  .mega-menu .has-sub{width:100%}
  .mega-menu .has-sub>a{padding:12px 14px;font-size:.95rem}
  .mega-menu .sub-menu{position:static;display:none;box-shadow:none;border:none;border-left:3px solid var(--brand);border-radius:0;min-width:0;width:100%;padding:0 0 0 14px;margin:0}
  .mega-menu .has-sub.open .sub-menu{display:block}
}
/* ≥1200px：nav 绝对居中，与左右宽度差无关（桌面像素级居中；<1200 用安全 flex 布局防重叠——中段宽度右侧动作组过宽，真居中会与它重叠，故保留安全布局） */
/* 桌面端（≥1001px）页头强制单行：logo | 导航(在流内居中) | 搜索+询价+语言切换器。避免右侧动作组换行到第二行 */
@media(min-width:1001px){
  .header-inner{flex-wrap:nowrap;position:relative}
  .site-nav{flex:1;justify-content:center;padding-right:8px}
  .header-search{max-width:210px}
}