:root{--ink:#233742;--black:#121518;--orange:#d95a26;--paper:#f6f4ef;--grey:#697477;--line:#dddeda}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Arial,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--orange);outline-offset:5px}header{height:100px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:18px;color:var(--black)}.brand strong{font-size:42px;letter-spacing:-2px;position:relative;padding-right:12px;line-height:1}.brand i{display:inline-block;width:9px;height:9px;background:var(--orange);margin-left:3px;position:absolute;bottom:5px;right:0}.brand span{font-size:18px;font-weight:600;letter-spacing:1px}.brand small{display:block;font-size:9px;color:var(--orange);letter-spacing:1.2px;margin-top:7px}nav{display:flex;gap:34px;font-size:14px}nav a:hover,.footer-links a:hover{color:var(--orange)}.nav-download{border-bottom:1px solid var(--ink);padding:9px 0;font-size:13px}.nav-download span{margin-left:24px}#menu{display:none}.hero{display:grid;grid-template-columns:1.08fr 1fr;min-height:660px;position:relative;background:var(--ink);color:white;padding:58px 5% 56px;gap:5%}.hero-copy{padding-top:24px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--orange);font-weight:600;margin:0 0 28px;line-height:1.5}h1{font-size:clamp(42px,4.5vw,68px);line-height:1.26;letter-spacing:-2px;font-weight:600;margin:36px 0 28px}h1 span{color:var(--orange)}.hero-intro{font-size:16px;color:#c3cccf;line-height:1.9;margin-bottom:40px}.hero-actions{display:flex;align-items:center;gap:32px}.button{border:0;display:inline-flex;align-items:center;justify-content:space-between;gap:44px;padding:19px 25px;font-size:14px;font-weight:600;transition:transform .2s,background .2s}.button:hover{transform:translateY(-3px)}.orange{background:var(--orange);color:white}.text-link{color:#dce1e1;font-size:13px;border-bottom:1px solid #708189;padding:10px 0}.dark{color:var(--ink);border-color:var(--ink)}.hero-caption{display:flex;gap:24px;margin-top:62px;color:#9aaeb6;font-size:11px;letter-spacing:1px}.hero-caption span+span{border-left:1px solid #5a6c74;padding-left:24px}.hero-visual{background:#e5e9ea;position:relative;min-height:520px;overflow:hidden}.hero-visual img{width:100%;height:520px;object-fit:contain}.visual-label{position:absolute;top:23px;left:25px;color:#5c6a71;font-size:9px;letter-spacing:2px;z-index:1}.visual-bottom{position:absolute;bottom:0;left:0;right:0;background:rgba(246,244,239,.93);padding:22px 28px;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}.visual-bottom small{display:block;font-size:11px;color:var(--grey);margin-bottom:6px}.visual-bottom b{font-size:16px}.visual-bottom a{font-size:26px}.hero-index{position:absolute;bottom:19px;left:5%;font-size:9px;letter-spacing:2px;color:#9aaeb6}.intro-strip{display:grid;grid-template-columns:1.1fr repeat(4,1fr);align-items:center;padding:32px 5%;border-bottom:1px solid var(--line);gap:24px}.intro-strip p{font-size:19px;font-weight:600;line-height:1.6;margin:0}.intro-strip div{font-size:14px;border-left:1px solid var(--line);padding:20px;text-align:center}.section{padding:100px 5%}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:35px;margin-bottom:48px}h2{font-size:clamp(30px,3vw,44px);line-height:1.4;font-weight:600;margin:0;letter-spacing:-1px}.section-head>p{font-size:14px;line-height:1.9;color:var(--grey);margin:0 0 6px}.filters{display:flex;gap:25px;border-bottom:1px solid var(--line);margin-bottom:34px}.filters button{border:none;background:none;color:var(--grey);padding:17px 4px;white-space:nowrap;font-size:13px;border-bottom:2px solid transparent}.filters button.active{color:var(--ink);border-color:var(--orange)}.filters small{font-size:10px;color:var(--orange);margin-left:6px}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px 22px}.product-card{display:block;cursor:pointer;text-align:left;border:0;background:none;padding:0;color:var(--ink)}.product-img{height:280px;background:#e4e9eb;overflow:hidden;position:relative}.product-img img{width:100%;height:100%;object-fit:contain;transition:transform .4s}.product-card:hover img{transform:scale(1.035)}.product-card .category{font-size:10px;letter-spacing:1px;color:var(--grey);margin:20px 0 9px}.product-card h3{font-size:18px;margin:0 0 7px;font-weight:600}.product-card p{font-size:12px;color:var(--grey);line-height:1.7;margin:0}.product-card .arrow{position:absolute;bottom:15px;right:16px;width:32px;height:32px;display:grid;place-items:center;background:var(--paper);font-size:20px}.product-note{font-size:11px;color:var(--grey);margin-top:35px}.solutions{background:var(--ink);color:white}.solutions .section-head>p{color:#afbec4}.solution-rows article{display:grid;grid-template-columns:50px 1fr 2fr 1fr;gap:30px;align-items:center;padding:35px 0;border-top:1px solid #53636b}.solution-rows article:last-child{border-bottom:1px solid #53636b}.solution-rows span{font-size:12px;color:var(--orange)}.solution-rows h3{font-size:23px;font-weight:500}.solution-rows p{font-size:13px;color:#c1cccf;line-height:1.9;max-width:430px}.solution-rows b{font-size:11px;color:#a4b5bd;font-weight:400;text-align:right}.about{display:grid;grid-template-columns:1fr 1fr;gap:10%;background:#e7e9e5;align-items:center}.about-symbol{font-weight:bold;font-size:180px;letter-spacing:-12px;color:#c6cecb;position:relative;padding:25px 0}.about-symbol i{display:inline-block;width:33px;height:33px;background:var(--orange);margin-left:12px}.about-symbol span{display:block;font-size:11px;color:var(--grey);letter-spacing:3px;line-height:1.9;margin-top:20px;padding-left:4px}.about-copy>p:not(.eyebrow){font-size:14px;line-height:2;color:var(--grey)}.about-copy h2{margin-bottom:28px}.about-values{display:flex;gap:26px;font-size:12px;margin-top:30px;border-top:1px solid #bfc7c4;padding-top:25px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:35px}.steps article{border-top:1px solid var(--ink);padding-top:26px}.steps span{font-size:10px;letter-spacing:1.5px;color:var(--orange)}.steps h3{font-size:20px;margin:25px 0 16px}.steps p{font-size:13px;line-height:1.9;color:var(--grey)}.selection{margin-top:62px;background:white;padding:40px;display:flex;justify-content:space-between;gap:30px;align-items:center}.selection h3{font-size:24px;margin:12px 0}.selection p:not(.eyebrow){color:var(--grey);font-size:13px}.selection .eyebrow{margin:0}.catalog-banner{background:var(--ink);color:white;padding:70px 5%;display:flex;justify-content:space-between;align-items:center;gap:30px;border-left:8px solid var(--orange)}.catalog-banner p:not(.eyebrow){font-size:13px;color:#b6c2c7;line-height:1.8}.light{background:var(--paper);color:var(--ink)}footer{padding:55px 5% 26px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;align-items:center}footer>div p{font-size:13px}footer>div small{font-size:11px;color:var(--grey)}.footer-links{display:flex;justify-content:flex-end;gap:22px;font-size:11px}.copyright{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px;font-size:9px;letter-spacing:1px;color:var(--grey);display:flex;justify-content:space-between;margin-top:20px}dialog{padding:45px;max-width:850px;width:calc(100% - 40px);max-height:90vh;border:0;background:var(--paper);color:var(--ink)}dialog::backdrop{background:rgba(18,21,24,.7)}.close{position:absolute;right:15px;top:10px;border:0;background:none;color:var(--ink);font-size:30px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.detail-grid img{width:100%;max-height:450px;object-fit:contain}.detail-grid p{font-size:14px;line-height:1.9;color:var(--grey)}.detail-grid h2{font-size:28px}.detail-grid dl{font-size:12px;line-height:1.8}.detail-grid dt{color:var(--grey);margin-top:18px}.detail-grid dd{margin:3px 0 18px}.detail-grid .button{margin-top:15px;font-size:12px;padding:14px 18px}#checklist-dialog{max-width:620px}#checklist-dialog h2{font-size:28px}.form-intro,.form-note{font-size:12px;color:var(--grey);line-height:1.8}form label{display:block;font-size:13px;margin:20px 0}input,textarea{display:block;width:100%;border:1px solid #ccd1cf;background:white;padding:12px;margin-top:9px;border-radius:0;color:var(--ink)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-grid label{margin-bottom:0}
@media(min-width:1600px){header,.section,.hero,.intro-strip,footer,.catalog-banner{padding-left:max(5%,calc((100vw - 1440px)/2));padding-right:max(5%,calc((100vw - 1440px)/2))}}@media(max-width:1000px){nav{gap:20px}.product-grid{grid-template-columns:repeat(2,1fr)}.product-img{height:320px}.hero{gap:25px}.hero-visual img{height:500px}.hero-caption{gap:12px}.hero-caption span+span{padding-left:12px}.hero-actions{gap:15px}.steps{gap:22px}.solution-rows article{grid-template-columns:30px 1fr 2fr}.solution-rows b{display:none}.about-symbol{font-size:140px}footer{grid-template-columns:1fr 1fr}.footer-links{grid-column:1/-1;justify-content:flex-start}}@media(max-width:700px){header{height:80px;padding:0 6%}.brand strong{font-size:34px}.brand span{font-size:15px}.brand small{font-size:8px}.nav-download{display:none}#menu{display:block;border:none;background:none;font-size:23px;color:var(--ink)}nav{display:none;position:absolute;top:80px;left:0;right:0;padding:25px 6%;background:var(--paper);box-shadow:0 10px 15px #0001}nav.open{display:flex;flex-direction:column;gap:26px}html{scroll-padding-top:80px}.hero{display:block;padding:35px 6% 45px}.hero-copy{padding:0}h1{font-size:44px;margin:25px 0}.hero-intro{font-size:14px}.hero-caption{margin:35px 0}.hero-visual{min-height:430px}.hero-visual img{height:430px}.hero-index{bottom:15px;left:6%}.hero-actions{justify-content:space-between}.button{padding:17px 20px;gap:24px}.text-link{font-size:12px}.intro-strip{padding:26px 6%;grid-template-columns:1fr 1fr;gap:12px}.intro-strip p{grid-column:1/-1;font-size:18px}.intro-strip p br{display:none}.intro-strip div{padding:12px 0;text-align:left;font-size:12px;border:0}.section{padding:65px 6%}.section-head{display:block;margin-bottom:30px}.section-head>p{font-size:13px;margin-top:22px}.eyebrow{font-size:10px;margin-bottom:22px}h2{font-size:31px}.filters{gap:18px;overflow-x:auto;scrollbar-width:thin}.filters button{font-size:12px}.product-grid{gap:26px 14px}.product-img{height:210px}.product-card h3{font-size:16px}.product-card .category{font-size:9px}.product-card p{font-size:11px}.solution-rows article{grid-template-columns:25px 1fr;gap:10px;padding:24px 0}.solution-rows h3{font-size:21px;margin:10px 0}.solution-rows p{grid-column:2;font-size:12px;margin:0}.about{display:flex;flex-direction:column;gap:40px;align-items:stretch}.about-symbol{font-size:130px;padding:0}.about-symbol span{display:none}.about-copy p{font-size:13px}.steps{grid-template-columns:1fr 1fr;gap:30px 22px}.steps h3{font-size:18px;margin:18px 0 13px}.steps p{font-size:12px}.selection{display:block;padding:28px;margin-top:40px}.selection h3{font-size:21px}.selection .button{margin-top:18px}.service .section-head .text-link{display:inline-block;margin-top:25px}.catalog-banner{display:block;padding:50px 6%}.catalog-banner .button{margin-top:22px}footer{padding:40px 6% 24px;grid-template-columns:1fr;gap:24px}.footer-links{gap:25px}.copyright{font-size:8px}.detail-grid{display:block}.detail-grid img{max-height:270px}.detail-grid h2{margin-top:25px;font-size:25px}dialog{padding:30px 24px}.form-grid{gap:15px}#checklist-dialog h2{font-size:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* Red brand system: clear masthead, restrained navigation, white product pages. */
:root{--ink:#25292c;--orange:#cc0000;--paper:#fff;--grey:#626b70;--line:#dce0e2}header{height:124px;align-items:flex-start;background:linear-gradient(to bottom,#cc0000 0,#cc0000 78px,#e5e8ea 78px,#e5e8ea 124px);padding-top:18px;border:0}.brand{color:white}.brand i{background:white}.brand small{color:white}.brand strong{font-size:40px}header nav{position:absolute;left:5%;top:78px;height:46px;align-items:center;gap:35px;color:#25292c;font-weight:600}header .nav-download{color:#fff;border-color:#fff;margin-top:6px}.hero{background:#fff;color:#25292c;padding-top:50px;min-height:640px;border-bottom:1px solid #dce0e2}.hero-intro{color:#626b70}.hero .text-link{color:#25292c;border-color:#aaa}.hero-caption,.hero-index{color:#626b70}.hero-visual{background:#e6ebef}.hero-copy h1 span{color:#cc0000}.visual-bottom{background:rgba(255,255,255,.95)}.solutions{background:#f0f2f3;color:#25292c}.solutions .section-head>p{color:#626b70}.solution-rows article{border-color:#ccd2d5}.solution-rows p,.solution-rows b{color:#626b70}.about{background:#fff;border-bottom:1px solid #dce0e2}.about-symbol{color:#cc0000}.about-symbol i{background:#25292c}.selection{background:#f0f2f3}.catalog-banner{background:#cc0000;border-left-color:#9b0000}.catalog-banner .eyebrow{color:#ffd0d0}.catalog-banner p:not(.eyebrow){color:#ffe0e0}.catalog-banner .button{color:#cc0000}footer{background:#e5e8ea}footer .brand{color:#25292c}footer .brand small{color:#cc0000}footer .brand i{background:#cc0000}dialog{background:#fff}.intro-strip{background:#f0f2f3}.products{background:#fff}html{scroll-padding-top:124px}
@media(max-width:700px){header{height:112px;padding-top:16px;background:linear-gradient(to bottom,#cc0000 0,#cc0000 72px,#e5e8ea 72px,#e5e8ea 112px)}header .brand strong{font-size:33px}header #menu{position:absolute;top:78px;left:6%;font-size:22px;background:none;color:#25292c}header nav{display:none;top:112px;height:auto;left:0;padding:25px 6%;background:#e5e8ea;align-items:flex-start}header nav.open{display:flex}.hero{padding-top:30px}html{scroll-padding-top:112px}.hero-visual{margin-top:28px}.catalog-banner{padding-top:50px}.brand span{font-size:15px}}
/* Preserve original product photography; do not add another backdrop around it. */
.product-img{background:#fff}.product-img img{object-fit:contain}.about-symbol i{background:#cc0000}
.hero-visual{background:#fff}.visual-label{background:#fff;padding:6px 8px;top:12px;left:14px}