:root{--canvas: #ffffff;--surface: #f4f7fa;--surface-strong: #e6edf4;--ink: #172033;--muted: #596676;--primary: #0f5d7f;--primary-dark: #0a4059;--accent: #d98b24;--border: #d6e0ea;--footer: #102638;--max: 1180px;--shadow: 0 10px 28px rgba(16, 38, 56, .1)}*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;color:var(--ink);background:var(--canvas);font-family:Arial,Microsoft YaHei,sans-serif;line-height:1.65}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}p{margin:0 0 1rem}.container{width:min(calc(100% - 32px),var(--max));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--border);background:#fffffff5;backdrop-filter:blur(10px)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--primary);font-weight:800}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:8px;background:var(--primary);color:#fff;font-size:14px;letter-spacing:0}.nav-links{display:flex;align-items:center;gap:22px;color:#243142;font-size:15px}.nav-links a:hover{color:var(--primary)}.language-link{min-height:38px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-radius:8px}.nav-toggle{display:none;min-width:44px;min-height:44px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);font-size:20px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border:1px solid 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64px}.hero-grid>*,.grid>*{min-width:0}.eyebrow,.label{color:var(--primary);font-size:13px;font-weight:800;letter-spacing:0}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px}.eyebrow:before{content:"";width:28px;height:2px;background:var(--accent)}h1,h2,h3{margin:0;line-height:1.15;overflow-wrap:break-word}h1{max-width:760px;font-size:clamp(2rem,4.8vw,4.2rem)}h2{font-size:clamp(1.65rem,3vw,2.7rem)}h3{font-size:1.18rem}.lead{max-width:660px;margin-top:18px;color:var(--muted);font-size:1.08rem}.hero-actions,.section-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.hero-media{border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}.hero-media img{width:100%;aspect-ratio:16 / 10;object-fit:cover}.media-caption{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;color:var(--muted);font-size:.92rem}.section{padding:78px 0}.section-muted{background:var(--surface)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head p{max-width:620px;margin:12px 0 0;color:var(--muted)}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{border:1px solid var(--border);border-radius:8px;background:#fff;overflow:hidden}.card:hover{box-shadow:var(--shadow)}.card-body{padding:22px}.card-image{width:100%;aspect-ratio:16 / 10;object-fit:cover;background:var(--surface-strong)}.product-card .btn{margin-top:8px}.muted{color:var(--muted)}.process{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.step{min-height:118px;padding:18px;border:1px solid var(--border);border-radius:8px;background:#fff}.step span{color:var(--accent);font-weight:800}.spec-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:8px;background:#fff}.spec-table{width:100%;min-width:560px;border-collapse:collapse}.spec-table th,.spec-table td{padding:14px 16px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.spec-table th{width:32%;background:var(--surface)}.list{padding-left:18px;margin:14px 0 0;color:var(--muted)}.banner{padding:34px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px}.banner p{color:#ffffffd6}.form{display:grid;gap:16px}.field{display:grid;gap:7px}.field label{font-weight:800}.field input,.field textarea,.field select{width:100%;min-height:46px;padding:11px 12px;border:1px solid var(--border);border-radius:8px;font:inherit;font-size:16px}.field textarea{min-height:140px}.site-footer{padding:46px 0;color:#dce7f3;background:var(--footer)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}.site-footer a,.site-footer span{display:block;margin:6px 0;color:#dce7f3}.site-footer .muted{color:#a9b8c9}.fineprint{margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#a9b8c9;font-size:.92rem}@media(max-width:900px){.nav-links{position:absolute;inset:72px 16px auto;display:none;flex-direction:column;align-items:stretch;padding:18px;border:1px solid var(--border);border-radius:8px;background:#fff;box-shadow:var(--shadow)}.nav-links.active{display:flex}.nav-toggle{display:inline-grid;place-items:center;margin-left:auto}.filter-sidebar{position:static;padding:16px}.container{width:100%;padding-left:16px;padding-right:16px}.hero-grid,.grid-2,.grid-3,.grid-4,.footer-grid,.process,.catalog-layout{grid-template-columns:1fr}.hero-grid{min-height:auto;padding:38px 16px 48px}h1{font-size:1.8rem;overflow-wrap:anywhere}h2{font-size:1.5rem;overflow-wrap:anywhere}.media-caption{display:block}.section{padding:56px 0}.section-head,.banner,.catalog-toolbar{display:block}.banner .btn{margin-top:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.catalog-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;align-items:start}.filter-sidebar{position:sticky;top:92px;display:grid;gap:22px;padding:22px;border:1px solid var(--border);border-radius:8px;background:#fff}.filter-sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--border)}.filter-sidebar h2,.filter-group h3{margin:0}.filter-sidebar h2{font-size:1.15rem}.filter-group h3{margin-bottom:10px;font-size:.95rem}.filter-options{display:grid;gap:8px}.filter-option,.filter-reset{min-height:38px;border:1px solid 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