:root{--red: #b3121f;--red-dark: #8e0e18;--ink: #1b1e23;--ink-2: #4a5059;--muted: #6b7280;--line: #e5e7eb;--bg: #ffffff;--bg-2: #f5f6f8;--radius: 10px;--wrap: 1180px;--font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}img{max-width:100%;height:auto;display:block}a{color:var(--red);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3;margin:0 0 .6em}h1{font-size:clamp(1.6rem,3.2vw,2.4rem)}h2{font-size:clamp(1.3rem,2.4vw,1.75rem)}h3{font-size:1.05rem}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}.muted{color:var(--muted)}.plain{list-style:none;margin:0;padding:0}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:8px;background:#fff;padding:8px 12px;z-index:100}.btn{display:inline-block;padding:.7em 1.4em;border-radius:999px;font-weight:600;border:1.5px solid transparent}.btn:hover{text-decoration:none}.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:var(--red-dark)}.btn-ghost{border-color:#ffffffb3;color:#fff}.btn-ghost:hover{background:#ffffff1f}.btn-outline{border-color:var(--red);color:var(--red)}.topbar{background:var(--ink);color:#cfd3da;font-size:.85rem}.topbar a{color:#fff}.topbar-in{display:flex;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px}.topbar-r{display:flex;gap:18px}.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}.header-in{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}.brand img{height:44px;width:auto}.nav{display:flex;align-items:center;gap:4px}.nav a{color:var(--ink);padding:8px 14px;border-radius:8px;font-weight:500}.nav a:hover{background:var(--bg-2);text-decoration:none}.nav a.active{color:var(--red)}.nav a.lang{border:1px solid var(--line);margin-left:8px;font-size:.9rem}.navtoggle,.burger{display:none}.hero{position:relative;color:#fff;background:#111 center/cover no-repeat}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0f1114e0,#0f1114a6,#0f111426)}.hero-in{position:relative;padding:96px 16px 104px;max-width:var(--wrap);margin:0 auto}.hero h1{max-width:15em}.hero p{max-width:34em;color:#e3e6ea;font-size:1.08rem}.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.eyebrow{display:inline-block;font-size:.85rem;letter-spacing:.08em;color:#ffb3b8;margin-bottom:10px;font-weight:600}.section{padding:64px 0}.section.alt{background:var(--bg-2)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px}.section-head h2{margin:0}.certs{display:flex;flex-wrap:wrap;gap:10px}.certs span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.9rem;font-weight:600;color:var(--ink-2)}.split{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}.split img{border-radius:var(--radius)}.cat-tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.cat-tile{position:relative;border-radius:var(--radius);overflow:hidden;min-height:220px;color:#fff;display:flex;align-items:flex-end;padding:24px;background:#333 center/cover}.cat-tile:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#000000bf,#0000000d 70%)}.cat-tile>*{position:relative}.cat-tile h3{font-size:1.35rem;margin:0 0 4px}.cat-tile p{margin:0;color:#e5e7eb;font-size:.92rem}.cat-tile:hover{text-decoration:none}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--ink);transition:box-shadow .15s,transform 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a:hover{background:var(--bg-2);text-decoration:none}.side a.active{background:#fbeaec;color:var(--red);font-weight:600}.side .parent{font-weight:700;color:var(--ink)}.side-contact{background:var(--bg-2);border-radius:var(--radius);padding:16px;font-size:.92rem}.side-contact li{padding:2px 0}.chips{display:none}.prose{min-width:0}.prose img{border-radius:8px;margin:12px 0;max-height:520px;width:auto}.prose p{margin:0 0 .9em}.table-wrap{overflow-x:auto;margin:12px 0 20px;border:1px solid var(--line);border-radius:8px;-webkit-overflow-scrolling:touch}.prose table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:520px}.prose td,.prose th{border:1px solid var(--line);padding:7px 10px;text-align:left;vertical-align:top}.prose tr:first-child td{background:var(--bg-2);font-weight:600}.prose tr:nth-child(2n) td{background:#fcfcfd}.product-top{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:32px;align-items:start}.product-top .cover{border-radius:var(--radius);border:1px solid var(--line);background:var(--bg-2)}.product-top .meta h1{font-size:clamp(1.4rem,2.6vw,1.9rem)}.tagrow{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}.tag{font-size:.82rem;background:var(--bg-2);color:var(--ink-2);border-radius:999px;padding:3px 10px}.note{background:#fff8e6;border:1px solid #f3dfa6;border-radius:8px;padding:12px 14px;font-size:.94rem}.cta-row{display:flex;gap:10px;flex-wrap:wrap}.news-list{display:grid;gap:14px}.news-item{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);background:#fff}.news-item:hover{text-decoration:none;border-color:#d1d5db}.news-date{color:var(--red);font-weight:700;font-size:.9rem}.news-item h3{margin:0 0 4px;font-size:1rem}.news-item p{margin:0;color:var(--muted);font-size:.9rem}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px}.contact-card dl{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0}.contact-card dt{color:var(--muted)}.contact-card dd{margin:0;word-break:break-word}.footer{background:var(--ink);color:#c7ccd4;margin-top:0;font-size:.92rem}.footer a{color:#fff}.footer h3{color:#fff;font-size:.98rem;margin-top:4px}.footer-grid{display:grid;grid-template-columns:1.3fr 1.3fr 1fr;gap:40px;padding-top:48px;padding-bottom:32px}.footer-grid ul li{padding:3px 0}.footer-logo{background:#fff;padding:6px 10px;border-radius:6px;margin-bottom:14px}.footer .muted{color:#9aa1ab}.footer-bottom{border-top:1px solid #2d3239;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:16px;padding-bottom:24px;color:#9aa1ab}.footer-bottom a{color:#9aa1ab}.float-cs{position:fixed;right:16px;bottom:16px;z-index:50}.float-cs summary{list-style:none;cursor:pointer;background:var(--red);color:#fff;font-weight:700;padding:12px 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var(--line);margin-top:6px}.cs-phone{font-size:1.2rem;font-weight:800}.copy{font:inherit;text-align:left;background:none;border:0;padding:0;color:var(--red);cursor:pointer}@media(max-width:1000px){.grid{grid-template-columns:repeat(3,1fr)}.with-side{grid-template-columns:1fr;gap:20px}.side{display:none}.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:18px}.chips a{white-space:nowrap;border:1px solid var(--line);border-radius:999px;padding:5px 12px;color:var(--ink-2);font-size:.88rem}.chips a.active{border-color:var(--red);color:var(--red);background:#fbeaec}}@media(max-width:760px){.hide-sm{display:none}.topbar-in{font-size:.8rem}.burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:10px}.burger span{width:22px;height:2px;background:var(--ink);display:block}.nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:8px 16px 16px;border-bottom:1px solid var(--line);box-shadow:0 10px 20px #0000000f}.navtoggle:checked~.nav{display:flex}.nav a.lang{margin:8px 0 0;text-align:center}.brand img{height:36px}.header-in{min-height:60px}.hero-in{padding:64px 16px 72px}.section{padding:44px 0}.grid{grid-template-columns:repeat(2,1fr);gap:12px}.cat-tiles,.split,.product-top,.contact-grid,.footer-grid{grid-template-columns:1fr}.footer-grid{gap:24px}.section-head{flex-direction:column;align-items:flex-start}.news-item{grid-template-columns:1fr;gap:4px}.card-body{padding:10px 12px 12px}.card-body h3{font-size:.9rem}}@media(max-width:520px){.topbar-in>span:first-child{display:none}.topbar-in{justify-content:flex-end}}