/* roulang page: index */
:root{
            --ink:#202625;--deep:#171c1b;--muted:#687370;--fog:#f2f4f1;--paper:#fff;
            --line:#dfe5e0;--lime:#d8f36a;--teal:#789998;--warn:#d68b55;
            --radius:18px;--shadow:0 16px 45px rgba(27,38,34,.08);--ease:all .28s ease;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--fog);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
        img{display:block;max-width:100%;height:auto}
        a{color:inherit;text-decoration:none;transition:var(--ease)}
        button,input,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        .container{width:min(1220px,calc(100% - 48px));margin:auto}
        .topbar{height:38px;background:#252d2a;color:#cdd6d0;font-size:13px}
        .topbar .container,.navrow .container{height:100%;display:flex;align-items:center;justify-content:space-between}
        .toplinks{display:flex;gap:25px}.toplinks span::before{content:"●";color:var(--lime);font-size:9px;margin-right:8px}
        .top-action{color:var(--lime);font-weight:700}
        .navrow{height:78px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:relative;z-index:10}
        .brand{font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}.brand em{font-style:normal;color:#7a9d35}
        .mainnav{display:flex;gap:29px;margin-left:auto;margin-right:30px}
        .mainnav a{font-size:15px;color:#4f5b56;padding:26px 0;position:relative}
        .mainnav a:hover,.mainnav a.active{color:var(--ink)}
        .mainnav a.active::after{content:"";height:3px;background:var(--lime);position:absolute;bottom:14px;left:0;right:0;border-radius:4px}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;font-weight:700;transition:var(--ease)}
        .nav-cta{background:var(--ink);color:#fff;padding:10px 19px;font-size:14px}
        .nav-cta:hover{background:#3d4944;transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;border:0;font-size:26px}
        .hero{min-height:650px;background:linear-gradient(90deg,rgba(20,28,26,.94) 0%,rgba(20,28,26,.72) 52%,rgba(20,28,26,.3)),url("/assets/images/backpic/back-1.webp") center/cover;color:#fff;display:flex;align-items:center}
        .hero .container{position:relative}.hero-copy{max-width:680px;padding:74px 0}
        .eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;color:#8baf47;font-weight:800;font-size:13px;letter-spacing:.08em}
        .eyebrow::before{content:"";width:24px;height:2px;background:var(--lime)}
        h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,5vw,62px);line-height:1.18;letter-spacing:-.055em;margin:20px 0 22px}
        h2{font-size:clamp(30px,3.4vw,42px);line-height:1.25;letter-spacing:-.04em;margin-bottom:18px}
        h3{font-size:21px;line-height:1.35;margin-bottom:10px}
        .hero-copy p{font-size:18px;color:#dce5df;max-width:630px;line-height:1.85}
        .hero-actions{display:flex;gap:13px;margin-top:31px}.btn{padding:14px 23px;background:var(--lime);color:var(--ink)}
        .btn:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(216,243,106,.2)}
        .btn.dark{background:#fff;color:var(--ink)}.btn.outline{background:transparent;border:1px solid #718079;color:#fff}
        .btn.outline:hover{background:#fff;color:var(--ink)}
        .hero-note{margin-top:44px;display:flex;gap:40px;border-top:1px solid rgba(255,255,255,.24);padding-top:20px}
        .hero-note strong{display:block;color:var(--lime);font-size:25px;line-height:1.2}.hero-note small{color:#bdc9c2}
        .section{padding:100px 0}.section-head{max-width:720px;margin-bottom:42px}.section-head p{color:var(--muted);max-width:680px}
        .section-kicker{color:#789d46;font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}
        .pain{background:#e8ece8}.node-map{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid #bfcac2}
        .node{padding:28px 20px 25px;border-right:1px solid #cbd4ce;position:relative}.node:last-child{border:0}
        .node::before{content:"";position:absolute;top:-6px;left:20px;width:11px;height:11px;border-radius:50%;background:var(--teal);border:3px solid #e8ece8}
        .node-num{font-size:12px;color:#789998;font-weight:800}.node p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
        .split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .visual-card{background:var(--deep);border-radius:var(--radius);padding:28px;color:#e1e9e4;min-height:360px;position:relative;overflow:hidden}
        .visual-card img{width:100%;height:304px;object-fit:cover;opacity:.72;border-radius:12px}
        .visual-label{position:absolute;left:45px;bottom:48px;background:rgba(21,28,26,.84);padding:13px 18px;border-left:3px solid var(--lime);font-size:14px}
        .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:28px 0}.feature-list div{border-top:1px solid var(--line);padding:14px 0;font-weight:700}.feature-list span{display:block;color:var(--muted);font-size:13px;font-weight:400}
        .architecture{background:#eef2ee;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-top:32px}
        .architecture .layer{display:flex;gap:10px;align-items:center;margin:10px 0}.architecture b{width:92px;color:#65746d;font-size:13px}.architecture i{font-style:normal;background:#fff;border:1px solid #cbd6cf;border-radius:8px;padding:7px 12px;font-size:13px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);position:relative}.step strong{font-size:38px;color:#b6c7bb;line-height:1}.step h3{margin-top:16px}.step p{font-size:14px;color:var(--muted);margin-bottom:17px}.mini-tags,.tags{display:flex;flex-wrap:wrap;gap:7px}.mini-tags span,.tags span{font-size:12px;padding:3px 9px;border-radius:30px;background:#e9f0e9;color:#56716b}
        .advantage{background:#fff}.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.adv{min-height:195px;padding:26px;border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease);background:#fff}.adv:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b8ca9b}.adv:nth-child(2){background:#f0f5df}.adv:nth-child(5){grid-row:span 2;min-height:407px;background:var(--deep);color:#fff}.adv:nth-child(5) p{color:#bdc9c2}.adv-num{color:#789998;font-size:12px;font-weight:800}.adv p{color:var(--muted);font-size:14px;margin:0}.track{height:100px;margin-top:20px;border-bottom:2px solid var(--lime);border-radius:50%;transform:skewY(-8deg);background:repeating-linear-gradient(90deg,transparent 0 25px,rgba(216,243,106,.22) 26px 27px)}
        .products{background:#e8ece8}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:var(--ease)}.product:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.product img{height:190px;width:100%;object-fit:cover}.product-body{padding:23px}.product-body p{color:var(--muted);font-size:14px}.product .btn{padding:10px 16px;font-size:13px;background:transparent;border:1px solid #a9b6ae}
        .dark-section{background:var(--deep);color:#fff}.dark-section .section-head p{color:#bdc9c2}.case-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}.case-image{border-radius:var(--radius);overflow:hidden;border:1px solid #44534c}.case-image img{width:100%;height:350px;object-fit:cover}.case-copy p{color:#bdc9c2}.case-stats{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #45524d;border-bottom:1px solid #45524d;margin:25px 0}.case-stats div{padding:18px 0}.case-stats strong{display:block;color:var(--lime);font-size:27px}.case-stats span{font-size:13px;color:#aebbb4}
        .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}.scene{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}.scene:first-child{grid-column:span 2;background:#dfe9d7}.scene p{color:var(--muted);font-size:14px}
        .stats{background:var(--lime);padding:43px 0}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.stat{border-right:1px solid rgba(32,38,37,.2);padding-left:20px}.stat:last-child{border:0}.stat strong{font-size:38px;letter-spacing:-.05em;display:block}.stat span{font-size:13px;color:#4f5d4b}
        .quotes{background:#fff}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote{padding:28px;border:1px solid var(--line);border-radius:var(--radius)}.quote p{font-size:16px}.quote small{color:var(--muted)}
        .insights{background:#e8ece8}.insight-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.article{background:#fff;border-radius:var(--radius);padding:25px;border:1px solid var(--line)}.article.featured{grid-row:span 2;padding:0;overflow:hidden}.article.featured img{width:100%;height:245px;object-fit:cover}.article.featured .article-content{padding:25px}.article h3{font-size:19px}.article p{color:var(--muted);font-size:14px}.article time{font-size:12px;color:#789998}
        .faq-list{max-width:900px}.accordion{background:none;margin:0;border:0}.accordion-item{border-top:1px solid var(--line)}.accordion-title{background:none!important;color:var(--ink)!important;border:0!important;padding:22px 38px 22px 0;font-size:17px;font-weight:700;position:relative}.accordion-title::before{content:"+";position:absolute;right:7px;top:17px;font-size:25px;color:#789998}.is-active .accordion-title::before{content:"−"}.accordion-content{border:0!important;padding:0 35px 21px 0;color:var(--muted);font-size:15px;background:none!important}
        .cta{background:#1d2623;color:#fff;padding:90px 0}.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}.cta p{color:#bdc9c2}.form-box{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px}.form-box label{font-size:13px;font-weight:700}.form-box input,.form-box textarea{border:1px solid #d6ded8;border-radius:8px;box-shadow:none;margin:6px 0 15px;height:43px}.form-box textarea{height:88px;resize:vertical}.form-box .btn{width:100%;border-radius:8px}.form-status{font-size:13px;color:#66823a;margin:12px 0 0;display:none}
        footer{background:#151b19;color:#b8c4bd;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #35403b}.footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-title{color:#fff;font-weight:700;margin-bottom:14px}.footer-grid a{display:block;font-size:14px;margin:7px 0;color:#b8c4bd}.footer-grid a:hover{color:var(--lime)}.copyright{display:flex;justify-content:space-between;padding-top:20px;font-size:13px;color:#83918a}
        @media(max-width:1024px){.mainnav{gap:16px;margin-right:15px}.mainnav a{font-size:14px}.section{padding:78px 0}.split{gap:35px}.adv-grid{grid-template-columns:repeat(2,1fr)}.adv:nth-child(5){grid-row:auto;min-height:195px}.scene-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:767px){.container{width:min(100% - 32px,600px)}.topbar{height:auto;padding:8px 0}.toplinks{gap:10px;flex-wrap:wrap}.toplinks span:nth-child(2){display:none}.navrow{height:67px}.mainnav,.navrow .nav-cta{display:none}.menu-toggle{display:block}.brand{font-size:17px}.hero{min-height:650px}.hero-copy{padding:65px 0}.hero-copy p{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.hero-note{gap:20px;flex-wrap:wrap}.node-map,.steps,.product-grid,.quote-grid,.stat-grid,.footer-grid,.cta-grid,.case-grid,.insight-grid{grid-template-columns:1fr}.node{border-right:0;border-bottom:1px solid #cbd4ce;padding-left:32px}.node::before{left:3px;top:30px}.adv-grid{grid-template-columns:1fr}.scene-grid{grid-template-columns:1fr}.scene:first-child{grid-column:auto}.section{padding:64px 0}.feature-list{grid-template-columns:1fr}.visual-card{min-height:285px}.visual-card img{height:230px}.case-image img{height:250px}.stat{border-right:0;border-bottom:1px solid rgba(32,38,37,.2);padding:15px 0}.stat:last-child{border-bottom:0}.cta-grid{gap:35px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
        @media(max-width:375px){h1{font-size:34px}.hero-note strong{font-size:21px}.btn{padding:13px 16px}.container{width:calc(100% - 28px)}}
        @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{--ink:#202625;--deep:#171c1b;--muted:#687370;--fog:#f2f4f1;--paper:#fff;--line:#dfe5e0;--lime:#d8f36a;--teal:#789998;--warn:#d68b55;--radius:18px;--shadow:0 16px 45px rgba(27,38,34,.08);--ease:all .28s ease}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--fog);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none;transition:var(--ease)}a:hover{color:#718f3d}img{display:block;max-width:100%;height:auto}button,input,textarea{font:inherit}button{cursor:pointer}.container{width:min(1220px,calc(100% - 48px));margin:auto}
.topbar{height:38px;background:#252d2a;color:#cdd6d0;font-size:13px}.topbar .container,.navrow .container{height:100%;display:flex;align-items:center;justify-content:space-between}.topbar-right{display:flex;align-items:center;gap:20px}.quick-link{color:var(--lime);font-weight:700}.navrow{height:78px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}.brand em{font-style:normal;color:#7a9d35}.mainnav{display:flex;gap:22px;margin-left:auto;margin-right:28px}.mainnav a{font-size:14px;color:#4f5b56;padding:26px 0;position:relative}.mainnav a:hover,.mainnav a.active{color:var(--ink)}.mainnav a.active:after{content:"";height:3px;background:var(--lime);position:absolute;bottom:14px;left:0;right:0;border-radius:4px}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;font-weight:700;transition:var(--ease)}.nav-cta{background:var(--ink);color:#fff;padding:10px 19px;font-size:14px}.nav-cta:hover{background:#3d4944;color:#fff;transform:translateY(-2px)}.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink)}
.page-hero{background:linear-gradient(100deg,rgba(23,28,27,.94),rgba(23,28,27,.67)),url("/assets/images/backpic/back-4.webp") center/cover;color:#fff;padding:78px 0 84px}.breadcrumb{color:#b8c7bf;font-size:13px;margin-bottom:25px}.breadcrumb a{color:var(--lime)}h1,h2,h3{line-height:1.25;margin:0 0 18px;letter-spacing:-.035em}h1{font-size:52px;max-width:780px}.page-hero p{color:#d9e3dc;max-width:700px;font-size:18px;margin:0}.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.hero-tags span,.tag{display:inline-flex;padding:5px 12px;border:1px solid rgba(216,243,106,.45);border-radius:30px;color:var(--lime);font-size:13px}
.section{padding:92px 0}.section-head{max-width:750px;margin-bottom:38px}.section-kicker{color:#789d46;font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:11px}.section-head p{color:var(--muted);margin:0}.filterbar{display:flex;flex-wrap:wrap;gap:10px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:28px}.filterbar span{font-size:13px;color:#52635c;padding:7px 13px;background:#edf2ed;border-radius:25px}.filterbar span:first-child{background:var(--ink);color:var(--lime)}
.solution-list{display:grid;gap:22px}.solution-card{display:grid;grid-template-columns:310px 1fr;gap:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 22px rgba(27,38,34,.035);transition:var(--ease)}.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.solution-card img{height:100%;min-height:240px;width:100%;object-fit:cover}.solution-body{padding:28px 30px 27px 0}.solution-body h3{font-size:25px}.solution-body p{color:var(--muted);margin:8px 0 17px}.mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}.mini-tags span{font-size:12px;padding:4px 10px;border-radius:30px;background:#e9f0e9;color:#56716b}.text-link{font-weight:800;color:#557333}.text-link:after{content:" →";transition:var(--ease)}.text-link:hover:after{margin-left:5px}
.architecture{background:#fff}.arch-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}.module-map{background:var(--deep);border-radius:var(--radius);padding:30px;color:#fff;position:relative;overflow:hidden}.module-map:before{content:"";position:absolute;inset:24px;background:repeating-linear-gradient(90deg,transparent 0 49px,rgba(120,153,152,.13) 50px),repeating-linear-gradient(0deg,transparent 0 49px,rgba(120,153,152,.13) 50px);opacity:.5}.module-flow{position:relative;display:grid;gap:12px}.module-row{display:flex;align-items:center;gap:10px}.module-row strong{width:105px;color:var(--lime);font-size:14px}.module-row i{height:1px;background:#789998;flex:1}.module-row span{padding:10px 13px;border:1px solid #506965;border-radius:9px;font-size:13px;background:#222c29}.check-list{list-style:none;margin:0;padding:0}.check-list li{border-top:1px solid var(--line);padding:15px 0 15px 25px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:#769b3d;font-weight:800}
.process{background:#edf1ed}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.step{padding:22px 20px;background:#fff;border-radius:14px;border:1px solid var(--line);position:relative}.step-num{color:#789d46;font-size:13px;font-weight:800}.step h3{font-size:20px;margin-top:11px}.step p{font-size:14px;color:var(--muted);margin:0 0 17px}.step small{display:block;color:#53665f;border-top:1px solid var(--line);padding-top:11px}
.parameters{background:var(--deep);color:#fff}.parameters .section-head p{color:#bdc9c2}.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}.data-box{border:1px solid #3c4943;border-radius:14px;padding:22px;background:#202825}.data-box strong{display:block;color:var(--lime);font-size:30px;line-height:1.2}.data-box span{font-size:13px;color:#c2cec7}.table-wrap{overflow:auto;border:1px solid #3b4842;border-radius:14px}.spec-table{width:100%;border-collapse:collapse;min-width:620px}.spec-table th,.spec-table td{text-align:left;padding:14px 18px;border-bottom:1px solid #35423c;font-size:14px}.spec-table th{color:var(--lime);font-weight:700}.spec-table td{color:#c5d0c9}.cta{background:#d8f36a;padding:76px 0}.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}.cta p{color:#4f5d53}.form-box{background:#fff;color:var(--ink);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}.form-box label{font-size:13px;font-weight:700}.form-box input,.form-box textarea{border:1px solid #d6ded8;border-radius:8px;box-shadow:none;margin:6px 0 14px;height:43px}.form-box textarea{height:80px;resize:vertical}.form-box input:focus,.form-box textarea:focus{border-color:#8aa34c;box-shadow:0 0 0 3px rgba(216,243,106,.35)}.form-box .btn{width:100%;border-radius:8px;background:var(--ink);color:#fff}.form-box .btn:hover{background:#3b4942}.form-status{font-size:13px;color:#66823a;margin:11px 0 0;display:none}
footer{background:#151b19;color:#b8c4bd;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #35403b}.footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-title{color:#fff;font-weight:700;margin-bottom:14px}.footer-grid a{display:block;font-size:14px;margin:7px 0;color:#b8c4bd}.footer-grid a:hover{color:var(--lime)}.footer-grid span{display:block;font-size:14px;margin:7px 0}.copyright{display:flex;justify-content:space-between;padding-top:20px;font-size:13px;color:#83918a}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
@media(max-width:1024px){.mainnav{gap:13px}.arch-grid,.cta-grid{gap:35px}.solution-card{grid-template-columns:250px 1fr}.process-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:767px){.container{width:min(100% - 32px,600px)}.topbar{height:auto;padding:8px 0}.topbar-right{display:none}.navrow{height:68px}.brand{font-size:17px}.menu-toggle{display:block}.mainnav{display:none;position:absolute;top:68px;left:0;right:0;margin:0;background:#fff;padding:8px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.mainnav.open{display:block}.mainnav a{display:block;padding:12px 4px;min-height:44px}.mainnav a.active:after{bottom:5px;right:auto;width:42px}.nav-cta{display:none}.page-hero{padding:56px 0 60px}h1{font-size:35px}.page-hero p{font-size:16px}.section{padding:65px 0}.section-head{margin-bottom:28px}.solution-card{display:block}.solution-card img{height:190px}.solution-body{padding:22px}.arch-grid,.cta-grid{grid-template-columns:1fr}.process-grid,.data-grid{grid-template-columns:repeat(2,1fr)}.data-box strong{font-size:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:27px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}
@media(max-width:375px){.container{width:calc(100% - 28px)}h1{font-size:31px}.process-grid,.data-grid{gap:10px}.step,.data-box{padding:16px 13px}.step h3{font-size:18px}.data-box strong{font-size:22px}.footer-grid{grid-template-columns:1fr}.hero-tags{gap:6px}}

/* roulang page: category2 */
:root{
 --ink:#202625;--deep:#171c1b;--muted:#687370;--fog:#f2f4f1;--paper:#fff;
 --line:#dfe5e0;--lime:#d8f36a;--teal:#789998;--warn:#d68b55;
 --radius:18px;--shadow:0 16px 45px rgba(27,38,34,.08);--ease:all .28s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fog);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.25;letter-spacing:-.045em}
h1{font-size:clamp(34px,4.5vw,57px);margin-bottom:23px}
h2{font-size:clamp(29px,3.2vw,42px);margin-bottom:16px}
h3{font-size:21px;margin-bottom:10px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1220px,calc(100% - 48px));margin:auto}
.topbar{height:38px;background:#252d2a;color:#cdd6d0;font-size:13px}
.topbar .container,.navrow .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.topbar-right{display:flex;align-items:center;gap:22px}
.topbar a{color:var(--lime)}
.navrow{height:78px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}
.brand{font-weight:800;font-size:20px;letter-spacing:-.05em;white-space:nowrap}
.brand em{font-style:normal;color:#7a9d35}
.mainnav{display:flex;gap:22px;margin-left:auto;margin-right:25px}
.mainnav a{font-size:14px;color:#4f5b56;padding:26px 0;position:relative;white-space:nowrap}
.mainnav a:hover,.mainnav a.active{color:var(--ink)}
.mainnav a.active:after{content:"";height:3px;background:var(--lime);position:absolute;bottom:14px;left:0;right:0;border-radius:4px}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:999px;font-weight:700;transition:var(--ease)}
.nav-cta{background:var(--ink);color:#fff;padding:10px 19px;font-size:14px;white-space:nowrap}
.nav-cta:hover{background:#3d4944;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink);padding:8px}
.page-hero{position:relative;overflow:hidden;padding:80px 0 88px;background:linear-gradient(105deg,#eef2ed 0%,#f8faf7 55%,#e8efea 100%)}
.page-hero:after{content:"";position:absolute;right:-8%;top:-30%;width:52%;height:170%;opacity:.3;background:linear-gradient(125deg,transparent 48%,var(--teal) 49%,transparent 50%),linear-gradient(155deg,transparent 46%,#cbd9d1 47%,transparent 48%);transform:rotate(-12deg)}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;gap:9px;color:#71807a;font-size:13px;margin-bottom:27px}
.breadcrumb a:hover{color:var(--ink)}
.hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.kicker,.section-kicker{color:#789d46;font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:12px}
.page-hero p{color:var(--muted);max-width:700px;font-size:17px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
.hero-tags span,.tags span,.mini-tags span{font-size:12px;padding:4px 11px;border-radius:30px;background:#e2ebe4;color:#58716a}
.hero-visual{min-height:310px;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--deep);box-shadow:var(--shadow)}
.hero-visual img{width:100%;height:310px;object-fit:cover;opacity:.72}
.visual-label{position:absolute;left:22px;bottom:20px;color:#fff;background:rgba(23,28,27,.82);padding:12px 16px;border-left:3px solid var(--lime);font-size:14px}
.section{padding:94px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head p{color:var(--muted);max-width:700px}
.filter-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0}
.filter-inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.filter-label{font-weight:800;font-size:14px}
.filter-tags{display:flex;gap:9px;flex-wrap:wrap}
.filter-tags span{border:1px solid var(--line);border-radius:30px;padding:7px 15px;color:#53635c;font-size:14px;background:#fbfdfb}
.filter-tags span:first-child{background:var(--ink);border-color:var(--ink);color:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scene-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:grid;grid-template-columns:42% 58%;min-height:235px;box-shadow:0 8px 25px rgba(27,38,34,.04);transition:var(--ease)}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b7c8b8}
.scene-card img{width:100%;height:100%;min-height:235px;object-fit:cover}
.scene-content{padding:25px 24px}
.scene-index{color:#779344;font-weight:800;font-size:13px;letter-spacing:.1em}
.scene-content p{color:var(--muted);font-size:14px;line-height:1.7}
.scene-link{display:inline-flex;align-items:center;color:#536f68;font-weight:700;font-size:14px;margin-top:7px}
.scene-link:after{content:"→";margin-left:8px;transition:var(--ease)}
.scene-link:hover{color:var(--ink)}
.scene-link:hover:after{transform:translateX(4px)}
.challenge{background:#e9efea}
.challenge-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:center}
.challenge-copy{padding-right:20px}
.challenge-map{background:var(--deep);border-radius:var(--radius);padding:31px;color:#fff;position:relative;overflow:hidden}
.challenge-map:before{content:"";position:absolute;inset:26px;background:repeating-linear-gradient(90deg,transparent 0 50px,rgba(120,153,152,.15) 51px 52px),repeating-linear-gradient(0deg,transparent 0 50px,rgba(120,153,152,.15) 51px 52px);opacity:.7}
.route-line{position:relative;height:270px;border-left:2px solid var(--lime);margin:5px 30px 5px 25px;padding:3px 0 3px 38px;display:flex;flex-direction:column;justify-content:space-between}
.route-line:after{content:"";position:absolute;left:-7px;top:6%;height:78%;border-left:2px dashed rgba(216,243,106,.38)}
.route-node{position:relative;z-index:1}
.route-node:before{content:"";position:absolute;left:-47px;top:10px;width:14px;height:14px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 6px rgba(216,243,106,.12)}
.route-node strong{display:block;font-size:17px}
.route-node span{color:#acbdb4;font-size:13px}
.matrix{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.matrix-table{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.matrix-row{display:grid;grid-template-columns:1.2fr repeat(3,1fr);border-bottom:1px solid var(--line);align-items:center}
.matrix-row:last-child{border-bottom:0}
.matrix-row span{padding:16px 17px;font-size:14px;color:#586760}
.matrix-row:first-child span{font-weight:800;color:var(--ink);background:#f5f8f4}
.matrix-row:not(:first-child) span:first-child{font-weight:700;color:var(--ink)}
.matrix-note{background:var(--deep);color:#fff;border-radius:var(--radius);padding:30px}
.matrix-note p{color:#bdc9c2;font-size:14px}
.check-list{list-style:none;margin:20px 0 0;padding:0}
.check-list li{border-top:1px solid rgba(255,255,255,.16);padding:11px 0 11px 22px;font-size:14px;position:relative}
.check-list li:before{content:"✓";position:absolute;left:0;color:var(--lime);font-weight:800}
.testing{background:#fff}
.testing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.test-step{padding:24px;border-top:3px solid var(--teal);background:#f7faf7}
.test-step strong{font-size:28px;color:#8aa454;display:block;margin-bottom:14px}
.test-step h3{font-size:18px}
.test-step p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:0}
.cta{background:#1d2623;color:#fff;padding:82px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}
.cta p{color:#bdc9c2}
.cta-points{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
.cta-points span{font-size:13px;color:#d8e2dc;border-left:2px solid var(--lime);padding-left:10px}
.form-box{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;box-shadow:0 15px 40px rgba(0,0,0,.18)}
.form-box label{font-size:13px;font-weight:700}
.form-box input,.form-box textarea{border:1px solid #d6ded8;border-radius:8px;box-shadow:none;margin:6px 0 15px;height:43px;padding:8px 12px}
.form-box input:focus,.form-box textarea:focus{border-color:#91a94c;box-shadow:0 0 0 3px rgba(216,243,106,.35)}
.form-box textarea{height:88px;resize:vertical}
.form-box .btn{width:100%;border-radius:8px}
.form-box .consent{display:flex;gap:8px;align-items:flex-start;font-weight:400;color:var(--muted);font-size:12px;margin:0 0 14px}
.form-box .consent input{height:auto;margin:5px 0 0}
.form-status{font-size:13px;color:#66823a;margin:12px 0 0;display:none}
footer{background:#151b19;color:#b8c4bd;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #35403b}
.footer-brand{color:#fff;font-size:20px;font-weight:800}
.footer-title{color:#fff;font-weight:700;margin-bottom:14px}
.footer-grid a{display:block;font-size:14px;margin:7px 0;color:#b8c4bd}
.footer-grid a:hover{color:var(--lime)}
.footer-grid p{font-size:14px;max-width:250px}
.footer-grid span{display:block;font-size:14px;margin:7px 0}
.copyright{display:flex;justify-content:space-between;padding-top:20px;font-size:13px;color:#83918a}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
@media(max-width:1024px){
 .mainnav{gap:12px;margin-right:14px}
 .hero-layout,.challenge-grid{gap:35px}
 .container{width:min(100% - 38px,900px)}
 .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:767px){
 .container{width:calc(100% - 32px)}
 .topbar{height:auto;min-height:38px;padding:8px 0}
 .topbar .container{gap:8px}
 .topbar-right span{display:none}
 .navrow{height:70px}
 .brand{font-size:17px}
 .mainnav{display:none;position:absolute;left:0;right:0;top:69px;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px;flex-direction:column;gap:0;box-shadow:0 12px 20px rgba(0,0,0,.08)}
 .mainnav.open{display:flex}
 .mainnav a{padding:13px 4px;min-height:44px}
 .mainnav a.active:after{bottom:7px;right:auto;width:28px}
 .nav-cta{display:none}
 .menu-toggle{display:block}
 .page-hero{padding:54px 0 58px}
 .hero-layout,.challenge-grid,.matrix,.cta-grid{grid-template-columns:1fr}
 .hero-visual{min-height:220px}
 .hero-visual img{height:220px}
 .section{padding:65px 0}
 .scene-grid,.testing-grid{grid-template-columns:1fr}
 .scene-card{grid-template-columns:38% 62%}
 .scene-card img{min-height:250px}
 .scene-content{padding:20px 17px}
 .scene-content h3{font-size:19px}
 .matrix-row span{padding:12px 8px;font-size:12px}
 .matrix-row{grid-template-columns:1.2fr repeat(3,1fr)}
 .testing-grid{gap:12px}
 .test-step{padding:20px}
 .cta{padding:65px 0}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .copyright{flex-direction:column;gap:8px}
}
@media(max-width:375px){
 h1{font-size:32px}
 .container{width:calc(100% - 26px)}
 .topbar{font-size:12px}
 .brand{font-size:16px}
 .scene-card{display:block}
 .scene-card img{height:165px;min-height:0}
 .filter-inner{gap:12px}
 .matrix{overflow:hidden}
 .matrix-row span{font-size:11px;padding:10px 5px;word-break:break-all}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}

/* roulang page: category4 */
:root{
 --ink:#202625;--deep:#171c1b;--muted:#687370;--fog:#f2f4f1;--paper:#fff;
 --line:#dfe5e0;--lime:#d8f36a;--teal:#789998;--warn:#d68b55;
 --radius:18px;--shadow:0 16px 45px rgba(27,38,34,.08);--ease:all .28s ease
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fog);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:var(--ease)}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1220px,calc(100% - 48px));margin:auto}
.topbar{height:38px;background:#252d2a;color:#cdd6d0;font-size:13px}
.topbar .container,.navrow .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.topbar-right{display:flex;gap:22px;align-items:center}
.topbar a{color:var(--lime)}
.navrow{height:78px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}
.brand em{font-style:normal;color:#7a9d35}
.mainnav{display:flex;gap:24px;margin-left:auto;margin-right:25px}
.mainnav a{font-size:14px;color:#4f5b56;padding:26px 0;position:relative}
.mainnav a:hover,.mainnav a.active{color:var(--ink)}
.mainnav a.active::after{content:"";height:3px;background:var(--lime);position:absolute;bottom:14px;left:0;right:0;border-radius:4px}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;font-weight:700;transition:var(--ease)}
.nav-cta{background:var(--ink);color:#fff;padding:10px 19px;font-size:14px}
.nav-cta:hover{background:#3d4944;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink)}
.page-hero{min-height:390px;background:linear-gradient(90deg,rgba(20,28,26,.94),rgba(20,28,26,.65)),url("/assets/images/backpic/back-4.webp") center/cover;color:#fff;display:flex;align-items:center}
.page-hero .container{padding:70px 0}
.breadcrumb{font-size:13px;color:#bdc9c2;margin-bottom:22px}
.breadcrumb a:hover{color:var(--lime)}
.eyebrow,.section-kicker{color:#8baf47;font-weight:800;font-size:13px;letter-spacing:.1em}
.page-hero h1{font-size:clamp(36px,5vw,58px);line-height:1.2;letter-spacing:-.05em;margin:10px 0 18px;max-width:760px}
.page-hero p{color:#dce5df;max-width:690px;font-size:18px;margin:0}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
.hero-tags span,.tags span{font-size:12px;padding:4px 12px;border-radius:30px;background:rgba(216,243,106,.13);border:1px solid rgba(216,243,106,.35);color:#e5f4b5}
.section{padding:94px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(28px,3.2vw,40px);line-height:1.3;letter-spacing:-.04em;margin:8px 0 15px}
.section-head p{color:var(--muted);margin:0}
.stage-tabs{display:flex;flex-wrap:wrap;gap:10px;border-bottom:1px solid var(--line);padding-bottom:22px}
.stage-tabs span{padding:9px 18px;border:1px solid #cbd7cf;border-radius:999px;color:#53635c;background:#fff}
.stage-tabs span.active{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.delivery-list{display:grid;gap:18px}
.delivery-card{display:grid;grid-template-columns:80px 1.05fr 1.3fr 1fr auto;gap:25px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px 28px;box-shadow:0 8px 24px rgba(27,38,34,.04);transition:var(--ease)}
.delivery-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8ca9b}
.stage-no{font-size:42px;line-height:1;color:#91ab68;font-weight:800}
.delivery-card h3{font-size:21px;margin:0 0 5px}
.delivery-card p{font-size:14px;color:var(--muted);margin:0}
.output{border-left:1px solid var(--line);padding-left:20px}
.output strong{display:block;font-size:14px}
.output span{font-size:13px;color:var(--muted)}
.arrow-link{font-weight:700;font-size:14px;white-space:nowrap}
.arrow-link::after{content:"→";color:#7a9d35;margin-left:8px;transition:var(--ease)}
.arrow-link:hover::after{margin-left:14px}
.dark-section{background:var(--deep);color:#fff}
.dark-section .section-head p{color:#bdc9c2}
.quality-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.quality-card{border:1px solid #3b4842;border-radius:var(--radius);padding:30px;background:#202825;min-height:245px}
.quality-card h3{font-size:22px;margin:0 0 12px}
.quality-card p{color:#bdc9c2;font-size:15px}
.signal-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px}
.signal-list li{display:flex;align-items:center;gap:10px;color:#dbe6df;font-size:14px}
.signal-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(216,243,106,.1)}
.security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:center}
.security-image{border-radius:var(--radius);overflow:hidden;background:#dbe4de}
.security-image img{width:100%;height:390px;object-fit:cover}
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:25px}
.matrix div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px}
.matrix b{display:block;font-size:15px}
.matrix span{font-size:13px;color:var(--muted)}
.roles{background:#e7ece7}
.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.role-card{background:#fff;border-radius:var(--radius);padding:28px;border:1px solid var(--line);min-height:215px}
.role-card:nth-child(2){margin-top:28px}
.role-card h3{margin:0 0 10px;font-size:20px}
.role-card p{color:var(--muted);font-size:14px}
.role-label{color:#789d46;font-weight:800;font-size:13px}
.cta{background:#1d2623;color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}
.cta h2{font-size:clamp(30px,4vw,45px);line-height:1.3;margin:10px 0 17px}
.cta p{color:#bdc9c2}
.form-box{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px}
.form-box label{font-size:13px;font-weight:700;display:block}
.form-box input,.form-box textarea{border:1px solid #d6ded8;border-radius:8px;box-shadow:none;margin:6px 0 15px;height:43px;padding:8px 12px;width:100%}
.form-box textarea{height:88px;resize:vertical}
.form-box input:focus,.form-box textarea:focus{outline:3px solid rgba(216,243,106,.55);border-color:#97b64f}
.btn{padding:14px 23px;background:var(--lime);color:var(--ink)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(216,243,106,.2)}
.form-box .btn{width:100%;border-radius:8px}
.form-status{font-size:13px;color:#66823a;margin:12px 0 0;display:none}
footer{background:#151b19;color:#b8c4bd;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #35403b}
.footer-brand{color:#fff;font-size:20px;font-weight:800}
.footer-title{color:#fff;font-weight:700;margin-bottom:14px}
.footer-grid a{display:block;font-size:14px;margin:7px 0;color:#b8c4bd}
.footer-grid a:hover{color:var(--lime)}
.footer-grid span{display:block;font-size:14px;margin:7px 0}
.copyright{display:flex;justify-content:space-between;padding-top:20px;font-size:13px;color:#83918a}
@media(max-width:1024px){
 .mainnav{gap:14px;margin-right:15px}
 .delivery-card{grid-template-columns:60px 1fr 1fr auto}
 .delivery-card .output{grid-column:2/4}
 .role-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,600px)}
 .topbar .container{font-size:12px}.topbar-right{gap:10px}
 .navrow{height:68px}.mainnav{display:none}.nav-cta{display:none}.menu-toggle{display:block}
 .brand{font-size:17px}
 .page-hero .container{padding:58px 0}.page-hero{min-height:420px}
 .section{padding:68px 0}.delivery-card{grid-template-columns:50px 1fr;padding:22px}
 .delivery-card .output{grid-column:2;border-left:0;padding-left:0}
 .delivery-card .arrow-link{grid-column:2}
 .quality-grid,.security-grid,.cta-grid{grid-template-columns:1fr;gap:28px}
 .security-image img{height:280px}
 .role-grid{grid-template-columns:1fr}.role-card:nth-child(2){margin-top:0}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .copyright{display:block}.copyright span{display:block;margin-top:8px}
}
@media(max-width:375px){
 .container{width:calc(100% - 28px)}
 .topbar-right{display:none}.topbar .container{justify-content:center}
 .page-hero h1{font-size:32px}.page-hero p{font-size:16px}
 .delivery-card h3{font-size:18px}.stage-no{font-size:34px}
 .matrix{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
 --ink:#202625;--deep:#171c1b;--muted:#687370;--fog:#f2f4f1;--paper:#fff;
 --line:#dfe5e0;--lime:#d8f36a;--teal:#789998;--warn:#d68b55;
 --radius:18px;--shadow:0 16px 45px rgba(27,38,34,.08);--ease:all .28s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--fog);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.25;letter-spacing:-.035em}
h1{font-size:clamp(36px,5vw,58px);margin-bottom:22px}
h2{font-size:clamp(30px,4vw,42px);margin-bottom:18px}
h3{font-size:21px;margin-bottom:10px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1220px,calc(100% - 48px));margin:auto}
.topbar{height:38px;background:#252d2a;color:#cdd6d0;font-size:13px}
.topbar .container,.navrow .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.topbar-right{display:flex;gap:20px;align-items:center}
.topbar a{color:var(--lime)}
.navrow{height:78px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}
.brand em{font-style:normal;color:#7a9d35}
.mainnav{display:flex;gap:24px;margin-left:auto;margin-right:28px}
.mainnav a{font-size:14px;color:#4f5b56;padding:26px 0;position:relative}
.mainnav a:hover,.mainnav a.active{color:var(--ink)}
.mainnav a.active:after{content:"";height:3px;background:var(--lime);position:absolute;bottom:14px;left:0;right:0;border-radius:4px}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;font-weight:700;transition:var(--ease)}
.nav-cta{background:var(--ink);color:#fff;padding:10px 19px;font-size:14px}
.nav-cta:hover{background:#3d4944;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink)}
.page-hero{min-height:400px;background:linear-gradient(90deg,rgba(20,28,26,.95),rgba(20,28,26,.63)),url("/assets/images/backpic/back-5.webp") center/cover;color:#fff;display:flex;align-items:center}
.page-hero .container{padding:70px 0}
.breadcrumb{font-size:13px;color:#b9c8bf;margin-bottom:28px}
.breadcrumb a{color:var(--lime)}
.page-hero p{max-width:720px;color:#d8e2dc;font-size:18px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
.hero-tags span,.tag{border:1px solid rgba(216,243,106,.45);color:var(--lime);border-radius:30px;padding:5px 12px;font-size:13px}
.section{padding:94px 0}
.section-head{max-width:740px;margin-bottom:42px}
.section-kicker{color:#789d46;font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:12px}
.section-head p{color:var(--muted);max-width:690px}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.filter-bar span{background:#e6ece7;border:1px solid transparent;color:#536660;border-radius:30px;padding:8px 16px;font-size:14px}
.filter-bar span.active{background:var(--ink);color:var(--lime)}
.tech-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.tech-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:29px;display:grid;grid-template-columns:64px 1fr;gap:20px;min-height:220px;transition:var(--ease)}
.tech-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b7c88e}
.tech-no{font-size:31px;font-weight:800;color:#90ad50;line-height:1}
.tech-item p{color:var(--muted);font-size:15px}
.tech-item .mini-tags{display:flex;flex-wrap:wrap;gap:7px}
.mini-tags span{font-size:12px;padding:3px 9px;border-radius:30px;background:#e9f0e9;color:#56716b}
.more-link{display:inline-flex;margin-top:17px;color:#607e43;font-weight:700;font-size:14px}
.more-link:after{content:"→";margin-left:8px;transition:var(--ease)}
.more-link:hover:after{transform:translateX(5px)}
.architecture{background:#fff}
.arch-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:58px;align-items:center}
.arch-image{background:var(--deep);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.arch-image img{width:100%;height:360px;object-fit:cover;border-radius:12px;opacity:.82}
.arch-copy p{color:var(--muted)}
.arch-flow{display:grid;gap:10px;margin-top:25px}
.arch-flow div{display:flex;align-items:center;gap:13px;border:1px solid var(--line);border-radius:10px;padding:12px 15px;background:var(--fog)}
.arch-flow b{width:28px;height:28px;display:grid;place-items:center;background:var(--lime);border-radius:50%;font-size:13px}
.dark-section{background:var(--deep);color:#fff}
.dark-section .section-head p,.dark-section .muted{color:#bdc9c2}
.validation-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.validation-card{border:1px solid #3a4942;border-radius:var(--radius);padding:28px;background:#202825}
.validation-card h3{color:var(--lime)}
.validation-card p{color:#bdc9c2;font-size:15px}
.check-list{list-style:none;margin:20px 0 0;padding:0}
.check-list li{border-top:1px solid #3a4942;padding:13px 0;color:#dce5df}
.check-list li:before{content:"●";color:var(--lime);margin-right:10px;font-size:11px}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:28px}
.metric{border-top:2px solid var(--lime);padding-top:12px}
.metric strong{display:block;font-size:26px;color:var(--lime)}
.metric small{color:#b9c8bf}
.interface-section{background:#edf1ed}
.interface-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.interface-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.interface-card .icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#e4efb9;color:#50652c;font-weight:800;margin-bottom:21px}
.interface-card p{color:var(--muted);font-size:14px}
.code-line{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:#658078;background:#f0f4ef;border-radius:7px;padding:9px;margin-top:13px;overflow:hidden}
.cta{background:#1d2623;color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}
.cta p{color:#bdc9c2}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.cta-points span{border:1px solid #53615a;border-radius:30px;padding:6px 12px;color:#d7e0da;font-size:13px}
.form-box{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px}
.form-box label{font-size:13px;font-weight:700}
.form-box input,.form-box textarea{border:1px solid #d6ded8;border-radius:8px;box-shadow:none;margin:6px 0 15px;height:43px}
.form-box textarea{height:88px;resize:vertical}
.form-box input:focus,.form-box textarea:focus{border-color:#91ae52;box-shadow:0 0 0 3px rgba(216,243,106,.35)}
.btn{padding:14px 23px;background:var(--lime);color:var(--ink)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(216,243,106,.2)}
.form-box .btn{width:100%;border-radius:8px}
.form-status{font-size:13px;color:#66823a;margin:12px 0 0;display:none}
footer{background:#151b19;color:#b8c4bd;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:35px;border-bottom:1px solid #35403b}
.footer-brand{color:#fff;font-size:20px;font-weight:800}
.footer-title{color:#fff;font-weight:700;margin-bottom:14px}
.footer-grid a{display:block;font-size:14px;margin:7px 0;color:#b8c4bd}
.footer-grid a:hover{color:var(--lime)}
.footer-grid span{display:block;font-size:14px;margin:7px 0}
.copyright{display:flex;justify-content:space-between;padding-top:20px;font-size:13px;color:#83918a}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
@media(max-width:1024px){
 .mainnav{gap:13px;margin-right:15px}
 .arch-grid,.validation-grid{gap:30px}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,600px)}
 .topbar{height:auto;padding:7px 0}
 .topbar .container{min-height:28px}
 .topbar-right{display:none}
 .navrow{height:68px}
 .mainnav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px;flex-direction:column;gap:0;box-shadow:0 12px 25px rgba(0,0,0,.08)}
 .mainnav.open{display:flex}
 .mainnav a{padding:13px 4px;min-height:44px}
 .mainnav a.active:after{bottom:5px}
 .nav-cta{display:none}
 .menu-toggle{display:block}
 .page-hero{min-height:420px}
 .page-hero .container{padding:55px 0}
 .page-hero p{font-size:16px}
 .section{padding:68px 0}
 .tech-list,.arch-grid,.validation-grid,.cta-grid{grid-template-columns:1fr}
 .interface-grid{grid-template-columns:1fr 1fr}
 .arch-image img{height:270px}
 .metric-row{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .copyright{display:block}
 .copyright span{display:block;margin-top:8px}
}
@media(max-width:520px){
 h1{font-size:34px}
 h2{font-size:30px}
 .interface-grid,.metric-row{grid-template-columns:1fr}
 .tech-item{grid-template-columns:1fr;gap:13px;padding:24px}
 .tech-no{font-size:24px}
 .hero-tags{gap:6px}
 .hero-tags span{font-size:12px}
 .footer-grid{grid-template-columns:1fr}
 .form-box{padding:21px}
}
@media(max-width:375px){
 .container{width:calc(100% - 28px)}
 h1{font-size:31px}
 .brand{font-size:17px}
}