/* roulang page: index */
:root{
      --ink:#171916;--ink-2:#262a25;--paper:#f6f5f0;--white:#fffefa;--line:#d9d9d1;
      --muted:#697069;--orange:#ef7527;--orange-dark:#c85614;--lime:#c7e84a;--steel:#aeb4ab;
      --radius:14px;--radius-lg:22px;--shadow:0 18px 45px rgba(23,25,22,.09);
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:cover}button,input,textarea,select{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}.container{width:min(1240px,calc(100% - 48px));margin:auto}.section{padding:100px 0}.eyebrow{display:flex;align-items:center;gap:9px;color:#596055;font-size:12px;letter-spacing:.12em;font-weight:800;text-transform:uppercase}.eyebrow i{width:8px;height:8px;background:var(--orange);border-radius:50%;display:block}.section-title{font-size:clamp(28px,4vw,47px);line-height:1.2;letter-spacing:-.045em;font-weight:850;margin:14px 0 18px}.section-intro{max-width:760px;font-size:16px;color:#545a53;margin:0}.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 21px;border:1px solid transparent;border-radius:9px;font-size:14px;font-weight:800;transition:.22s ease}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--orange);color:#fff}.btn-primary:hover{background:var(--orange-dark);box-shadow:0 10px 20px rgba(200,86,20,.22)}.btn-light{background:#fff;color:var(--ink);border-color:#fff}.btn-light:hover{background:var(--lime);border-color:var(--lime)}.btn-outline{background:transparent;color:var(--ink);border-color:#b7bbb3}.btn-outline:hover{border-color:var(--ink);background:#fff}.tag{display:inline-flex;align-items:center;border:1px solid #cfd2c9;padding:4px 10px;border-radius:999px;font-size:12px;color:#62685f;background:#fbfbf7}.topbar{background:var(--ink);color:#dfe3dc;font-size:12px}.topbar-in{height:39px;display:flex;align-items:center;justify-content:space-between;gap:20px}.top-meta{display:flex;align-items:center;gap:18px}.signal{display:inline-flex;align-items:center;gap:7px}.signal b{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block}.site-head{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(12px)}.nav-in{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}.logo{display:flex;align-items:center;gap:10px;min-width:228px;font-size:17px;font-weight:900;letter-spacing:-.04em}.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:8px;position:relative;overflow:hidden}.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}.logo-mark:before{width:24px;height:24px;left:9px;top:8px}.logo-mark:after{width:14px;height:14px;left:2px;top:2px}.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}.nav-links a{position:relative;padding:26px 0}.nav-links a:after{content:"";height:2px;background:var(--orange);position:absolute;left:0;right:100%;bottom:18px;transition:.2s}.nav-links a:hover:after,.nav-links a.active:after{right:0}.nav-cta{white-space:nowrap}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:8px}.menu-toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}.hero{background:#20231f;color:white;position:relative;min-height:650px;overflow:hidden}.hero-slides,.hero-slide{position:absolute;inset:0}.hero-slide{background-size:cover;background-position:center;opacity:0;transform:scale(1.03);transition:opacity .7s ease,transform 4s ease}.hero-slide.active{opacity:1;transform:scale(1)}.hero-slide:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,20,17,.94) 0%,rgba(18,20,17,.69) 48%,rgba(18,20,17,.32) 100%)}.hero-content{min-height:650px;position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;padding:75px 0 105px}.hero-kicker{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.1em}.hero-kicker span{border:1px solid rgba(199,232,74,.55);border-radius:99px;padding:4px 10px}.hero h1{font-size:clamp(38px,5.3vw,69px);line-height:1.08;letter-spacing:-.065em;max-width:810px;margin:19px 0 22px;font-weight:900}.hero p{font-size:16px;line-height:1.9;color:#e0e4dd;max-width:760px;margin:0}.hero-actions{display:flex;gap:12px;margin-top:29px;flex-wrap:wrap}.hero-specs{position:absolute;z-index:3;bottom:0;left:0;right:0;border-top:1px solid rgba(255,255,255,.18);background:rgba(18,20,17,.6)}.spec-row{display:grid;grid-template-columns:repeat(4,1fr)}.spec{padding:17px 22px;border-right:1px solid rgba(255,255,255,.14)}.spec:last-child{border:0}.spec b{display:block;color:var(--lime);font-size:16px}.spec span{font-size:12px;color:#cbd0c9}.slide-control{position:absolute;z-index:5;right:max(24px,calc((100vw - 1240px)/2));bottom:105px;display:flex;align-items:center;gap:12px}.slide-control button{width:39px;height:39px;border-radius:50%;border:1px solid rgba(255,255,255,.5);color:#fff;background:rgba(0,0,0,.18);font-size:20px}.dots{display:flex;gap:7px}.dots button{width:8px;height:8px;padding:0;border:0;background:#90958c}.dots button.active{background:var(--lime);width:25px;border-radius:9px}.overview-grid{display:grid;grid-template-columns:5fr 7fr;gap:70px;align-items:center}.interface-visual{position:relative;min-height:485px;background:#e3e4dd;border-radius:var(--radius-lg);overflow:hidden}.interface-visual img{width:100%;height:100%;position:absolute;inset:0}.interface-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(16,18,16,.52))}.interface-chip{position:absolute;z-index:2;right:20px;bottom:20px;padding:15px 17px;background:var(--ink);color:#fff;border-radius:10px;max-width:230px}.interface-chip b{font-size:12px;color:var(--lime);display:block}.interface-chip span{font-size:12px;color:#d1d5cc}.chain{border-top:1px solid var(--line);margin-top:30px}.chain-item{display:grid;grid-template-columns:34px 1fr auto;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:center}.chain-item b{font-family:ui-monospace,monospace;color:var(--orange);font-size:12px}.chain-item strong{font-size:14px}.chain-item span{font-size:12px;color:var(--muted)}.matrix{background:#e9e8e1}.matrix-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:38px}.matrix-grid{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid #c8cbc3;border-left:1px solid #c8cbc3}.matrix-card{padding:25px 19px;min-height:227px;border-right:1px solid #c8cbc3;border-bottom:1px solid #c8cbc3;transition:.22s;background:rgba(255,255,255,.22)}.matrix-card:hover{background:var(--white);transform:translateY(-4px)}.matrix-card .num{font:700 12px ui-monospace,monospace;color:var(--orange)}.matrix-card h3{font-size:17px;line-height:1.35;margin:35px 0 11px;letter-spacing:-.03em}.matrix-card p{font-size:13px;line-height:1.7;color:#62675f;margin:0}.metric-wrap{display:grid;grid-template-columns:4fr 8fr;gap:55px;align-items:center}.metric-panel{background:var(--ink);color:white;padding:35px;border-radius:var(--radius-lg)}.metric-panel h2{font-size:28px;line-height:1.3;margin:0 0 14px;letter-spacing:-.04em}.metric-panel p{font-size:14px;color:#ced2ca;margin:0}.metric-list{display:grid;grid-template-columns:1fr 1fr;gap:0 36px}.metric{padding:18px 0;border-bottom:1px solid var(--line)}.metric b{font:800 34px/1 ui-monospace,monospace;letter-spacing:-.08em}.metric b em{font-size:15px;font-style:normal;color:var(--orange);margin-left:4px}.metric span{display:block;font-size:13px;color:var(--muted);margin-top:9px}.flow{background:var(--white)}.flow-row{display:grid;grid-template-columns:repeat(6,1fr);margin-top:48px}.flow-item{position:relative;padding:0 18px 0 0}.flow-item:before{content:"";display:block;width:15px;height:15px;border:4px solid var(--orange);border-radius:50%;background:#fff;position:relative;z-index:2}.flow-item:after{content:"";height:1px;background:#c9ccc4;position:absolute;left:15px;right:0;top:7px}.flow-item:last-child:after{display:none}.flow-item b{display:block;font:800 12px ui-monospace,monospace;color:var(--orange);margin-top:18px}.flow-item h3{font-size:16px;margin:6px 0}.flow-item p{font-size:13px;line-height:1.65;color:var(--muted);margin:0}.products-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px;margin-top:38px}.product-main{min-height:440px;position:relative;border-radius:var(--radius-lg);overflow:hidden;color:white}.product-main img{position:absolute;inset:0;width:100%;height:100%}.product-main:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,20,17,.9),rgba(18,20,17,.1))}.product-copy{position:absolute;z-index:2;left:34px;right:34px;bottom:30px}.product-copy h3{font-size:29px;line-height:1.2;margin:11px 0}.product-copy p{font-size:14px;color:#e1e4de;max-width:550px;margin:0}.product-side{display:grid;gap:18px}.product-mini{background:#dedfd8;padding:26px;border-radius:var(--radius);min-height:211px;position:relative;overflow:hidden}.product-mini:nth-child(2){background:#252924;color:#fff}.product-mini h3{font-size:20px;line-height:1.3;margin:32px 0 8px;position:relative;z-index:1}.product-mini p{font-size:13px;line-height:1.65;margin:0;color:#5c625a;position:relative;z-index:1}.product-mini:nth-child(2) p{color:#d6d9d3}.product-mini .corner{position:absolute;right:-19px;bottom:-32px;font:900 110px ui-monospace;color:rgba(255,255,255,.25)}.case-section{background:var(--ink);color:#fff;overflow:hidden}.case-grid{display:grid;grid-template-columns:4fr 8fr;gap:55px;align-items:start}.case-section .section-intro{color:#c5c9c2}.case-list{border-top:1px solid #555a53}.case-item{display:grid;grid-template-columns:68px 1fr auto;gap:20px;padding:25px 0;border-bottom:1px solid #555a53;align-items:start}.case-id{font:800 15px ui-monospace;color:var(--lime)}.case-item h3{font-size:20px;margin:0 0 6px}.case-item p{font-size:13px;color:#c8cdc5;margin:0}.case-status{font-size:12px;border:1px solid #687068;padding:4px 9px;border-radius:99px;color:#dce0d9}.scenes{padding-bottom:70px}.scene-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:29px 0}.scene-tab{border:1px solid var(--line);padding:9px 14px;border-radius:99px;background:transparent;font-size:13px;font-weight:700}.scene-tab.active,.scene-tab:hover{background:var(--ink);color:#fff;border-color:var(--ink)}.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.story{background:var(--white);border:1px solid #e4e4de;border-radius:var(--radius);padding:25px}.story h3{font-size:18px;margin:17px 0 10px}.story p{font-size:13px;line-height:1.75;color:var(--muted);margin:0}.story .result{border-top:1px solid var(--line);padding-top:14px;margin-top:18px;font-size:12px;font-weight:800;color:#41463f}.ecosystem{padding:70px 0;background:#dedfd8}.ecosystem-row{display:grid;grid-template-columns:3fr 9fr;gap:50px;align-items:center}.eco-tags{display:flex;gap:10px;flex-wrap:wrap}.eco-tags span{background:#f8f8f4;border:1px solid #c9ccc3;border-radius:8px;padding:15px 18px;font-size:14px;font-weight:750}.review-news{display:grid;grid-template-columns:4fr 8fr;gap:65px;align-items:start}.quote{background:#e7e7e0;border-radius:var(--radius-lg);padding:33px;position:relative}.quote:before{content:"“";font-size:90px;line-height:.65;color:var(--orange);font-family:serif}.quote p{font-size:17px;line-height:1.8;font-weight:700;margin:12px 0 20px}.quote span{font-size:13px;color:var(--muted)}.news-list{border-top:1px solid var(--line)}.news{display:grid;grid-template-columns:115px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news time{font:700 12px ui-monospace,monospace;color:var(--orange)}.news h3{font-size:17px;margin:0 0 4px}.news p{font-size:13px;color:var(--muted);margin:0}.news-arrow{font-size:23px;color:var(--orange)}.faq-section{background:var(--white)}.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:70px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{padding:21px 35px 21px 0;cursor:pointer;list-style:none;font-weight:800;font-size:16px;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:4px;top:18px;font-size:25px;color:var(--orange);font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list details p{font-size:14px;color:var(--muted);margin:0;padding:0 35px 22px 0}.trust{padding:36px 0;background:#30342e;color:#fff}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.trust-item{display:flex;gap:12px;align-items:flex-start}.trust-icon{width:29px;height:29px;flex:0 0 29px;border:1px solid var(--lime);border-radius:50%;display:grid;place-items:center;color:var(--lime);font-size:13px}.trust-item b{font-size:14px;display:block}.trust-item span{font-size:12px;color:#c7ccc4;display:block;margin-top:2px}.contact{background:var(--orange);padding:90px 0}.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:70px;align-items:start}.contact h2{font-size:clamp(29px,4vw,47px);letter-spacing:-.05em;line-height:1.2;margin:15px 0}.contact p{font-size:15px;max-width:450px}.form-box{background:#fffdf8;padding:28px;border-radius:var(--radius-lg);box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:800}.field input,.field textarea{width:100%;border:1px solid #c8cbc3;border-radius:8px;background:#fff;padding:12px 13px;font-size:14px;outline:none;transition:.2s}.field textarea{resize:vertical;min-height:92px}.field input:focus,.field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(239,117,39,.16)}.field input:invalid:not(:placeholder-shown){border-color:#c44735}.form-note{font-size:12px;color:var(--muted);margin:12px 0 0}.site-footer{background:#171916;color:#d5d9d2;padding:60px 0 22px}.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:35px;padding-bottom:45px;border-bottom:1px solid #454a43}.footer-logo{color:#fff;font-size:19px}.footer-brand p{font-size:13px;line-height:1.75;color:#aeb5ac;max-width:290px;margin:16px 0}.footer-col h3{color:#fff;font-size:14px;margin:4px 0 15px}.footer-col a,.footer-col p{display:block;font-size:13px;color:#aeb5ac;margin:8px 0}.footer-col a:hover{color:var(--lime)}.footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:18px;font-size:12px;color:#939b91}.footer-bottom a:hover{color:#fff}
    @media(max-width:1050px){.nav-links{gap:15px;font-size:13px}.matrix-grid{grid-template-columns:repeat(3,1fr)}.flow-row{grid-template-columns:repeat(3,1fr);gap:30px}.flow-item:nth-child(3):after{display:none}.overview-grid,.metric-wrap,.case-grid,.faq-layout,.contact-grid{gap:38px}.review-news{gap:35px}}
    @media(max-width:800px){.top-meta span:not(.signal){display:none}.nav-links,.nav-cta{display:none}.menu-toggle{display:block}.site-head.open .nav-links{position:absolute;top:76px;left:0;right:0;background:#fffefa;border-bottom:1px solid var(--line);display:flex;flex-direction:column;align-items:stretch;gap:0;padding:9px 24px 17px;box-shadow:var(--shadow)}.site-head.open .nav-links a{padding:13px 0}.site-head.open .nav-links a:after{bottom:7px}.hero,.hero-content{min-height:630px}.overview-grid,.metric-wrap,.case-grid,.faq-layout,.contact-grid,.review-news,.ecosystem-row{grid-template-columns:1fr}.overview-grid{gap:34px}.interface-visual{min-height:330px}.matrix-head{display:block}.matrix-head .section-intro{margin-top:15px}.story-grid{grid-template-columns:1fr}.products-grid{grid-template-columns:1fr}.product-main{min-height:375px}.review-news{gap:36px}.footer-grid{grid-template-columns:1fr 1fr}.slide-control{right:24px}.spec-row{grid-template-columns:1fr 1fr}.spec:nth-child(2){border-right:0}.spec{padding:12px 16px}.hero-specs{position:relative}.hero-content{padding-bottom:55px}.hero{min-height:auto}.hero-content{min-height:540px}.slide-control{bottom:24px}.metric-panel{padding:27px}.contact{padding:70px 0}}
    @media(max-width:520px){.container{width:min(100% - 40px,1240px)}.topbar-in{height:36px}.top-meta{gap:8px}.logo{min-width:0;font-size:15px}.nav-in{height:67px}.site-head.open .nav-links{top:67px}.section{padding:68px 0}.hero h1{font-size:38px}.hero p{font-size:15px}.hero-actions .btn{width:100%}.spec-row{grid-template-columns:1fr 1fr}.spec{padding:11px}.spec b{font-size:14px}.matrix-grid{grid-template-columns:1fr 1fr}.matrix-card{min-height:185px;padding:19px 14px}.matrix-card h3{font-size:15px;margin-top:23px}.metric-list{grid-template-columns:1fr;gap:0}.flow-row{grid-template-columns:1fr;gap:0;margin-top:30px}.flow-item{display:grid;grid-template-columns:31px 1fr;padding:0 0 20px;column-gap:12px}.flow-item:before{grid-row:1/4}.flow-item:after{height:auto;width:1px;left:7px;top:15px;bottom:-1px;right:auto}.flow-item b{margin:0}.flow-item h3{margin:2px 0}.flow-item p{grid-column:2}.product-copy{left:22px;right:22px;bottom:22px}.product-copy h3{font-size:24px}.case-item{grid-template-columns:48px 1fr}.case-status{grid-column:2;justify-self:start}.news{grid-template-columns:1fr auto;gap:5px 15px}.news time{grid-column:1}.news-arrow{grid-column:2;grid-row:1/3}.news h3,.news p{grid-column:1}.trust-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.contact-grid{gap:28px}.section-intro{font-size:15px}.topbar-in>span:last-child{font-size:11px}.scene-tab{font-size:12px;padding:8px 11px}}

/* roulang page: category2 */
:root{
 --ink:#171916;--ink-2:#262a25;--paper:#f6f5f0;--white:#fffefa;--line:#d9d9d1;
 --muted:#697069;--orange:#ef7527;--orange-dark:#c85614;--lime:#c7e84a;--steel:#aeb4ab;
 --radius:14px;--radius-lg:22px;--shadow:0 18px 45px rgba(23,25,22,.09)
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none} img{display:block;max-width:100%;object-fit:cover} button,input,textarea{font:inherit} button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.container{width:min(1240px,calc(100% - 48px));margin:auto}.section{padding:96px 0}.eyebrow{display:flex;align-items:center;gap:9px;color:#596055;font-size:12px;letter-spacing:.12em;font-weight:800}.eyebrow i{width:8px;height:8px;background:var(--orange);border-radius:50%;display:block}
.section-title{font-size:clamp(29px,4vw,48px);line-height:1.18;letter-spacing:-.05em;font-weight:900;margin:14px 0 17px}.section-intro{max-width:760px;color:#555c54;margin:0;font-size:16px}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:0 20px;border:1px solid transparent;border-radius:9px;font-size:14px;font-weight:800;transition:.22s ease}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--orange);color:#fff}.btn-primary:hover{background:var(--orange-dark);box-shadow:0 10px 20px rgba(200,86,20,.22)}.btn-outline{border-color:#aeb4ab;background:transparent}.btn-outline:hover{border-color:var(--ink);background:var(--white)}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;border:1px solid #cfd2c9;background:#fbfbf7;color:#596055;font-size:12px;font-weight:700}
.topbar{background:var(--ink);color:#dfe3dc;font-size:12px}.topbar-in{height:39px;display:flex;align-items:center;justify-content:space-between;gap:20px}.top-meta{display:flex;align-items:center;gap:18px}
.nav-shell{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.nav-in{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}.logo{display:flex;align-items:center;gap:10px;min-width:228px;font-size:17px;font-weight:900;letter-spacing:-.04em}.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:8px;position:relative;overflow:hidden;flex:none}.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}.logo-mark:before{width:24px;height:24px;left:9px;top:8px}.logo-mark:after{width:14px;height:14px;left:2px;top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}.nav-links a{position:relative;padding:26px 0}.nav-links a:after{content:"";height:2px;background:var(--orange);position:absolute;left:0;right:100%;bottom:18px;transition:.2s}.nav-links a:hover:after,.nav-links a.active:after{right:0}.nav-cta{white-space:nowrap}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:8px}.menu-toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink)}
.page-hero{padding:72px 0 62px;background:var(--ink);color:#fff;position:relative;overflow:hidden}.page-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(23,25,22,.98),rgba(23,25,22,.72));z-index:0}.page-hero .container{position:relative;z-index:1}.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:58px;align-items:center}.crumb{font-size:13px;color:#cfd3ca}.crumb span{color:var(--lime);padding:0 8px}.page-hero h1{font-size:clamp(38px,5vw,63px);line-height:1.08;letter-spacing:-.065em;margin:18px 0}.page-hero p{max-width:710px;color:#d9ddd4;font-size:16px;margin:0}.hero-note{margin-top:25px;display:flex;gap:9px;flex-wrap:wrap}.hero-visual{height:308px;border-radius:var(--radius-lg);overflow:hidden;position:relative;border:1px solid rgba(255,255,255,.18)}.hero-visual img{width:100%;height:100%}.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.42),transparent)}.visual-label{position:absolute;z-index:1;left:18px;bottom:16px;font:700 12px ui-monospace,monospace;color:var(--lime);letter-spacing:.08em}
.anchor-bar{border-bottom:1px solid var(--line);background:#eeeee8}.anchor-list{display:flex;align-items:center;gap:0;overflow:auto}.anchor-list a{white-space:nowrap;padding:17px 22px;border-right:1px solid var(--line);font-size:13px;font-weight:800;color:#555c54;transition:.2s}.anchor-list a:hover{background:var(--white);color:var(--orange)}
.sensor-matrix{margin-top:43px;border-top:1px solid var(--line);border-left:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr)}.sensor-cell{min-height:220px;padding:25px 23px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.22);transition:.22s}.sensor-cell:hover{background:var(--white);transform:translateY(-4px);box-shadow:var(--shadow)}.sensor-icon{width:42px;height:42px;border-radius:10px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font:800 15px ui-monospace,monospace}.sensor-cell h3{font-size:19px;margin:27px 0 9px;letter-spacing:-.04em}.sensor-cell p{font-size:13px;color:var(--muted);margin:0}.sensor-cell .tag{margin-top:17px}
.interface-layout{display:grid;grid-template-columns:5fr 7fr;gap:50px;align-items:start}.panel-dark{background:var(--ink);color:#fff;padding:34px;border-radius:var(--radius-lg)}.panel-dark h3{font-size:24px;line-height:1.25;margin:0 0 12px}.panel-dark p{margin:0;color:#cbd0c7;font-size:14px}.signal-list{margin-top:28px;border-top:1px solid rgba(255,255,255,.16)}.signal-list div{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:13px}.signal-list b{color:var(--lime)}.interface-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}.interface-row{display:grid;grid-template-columns:1.15fr 1.4fr 1.25fr .9fr;gap:15px;padding:18px 20px;border-bottom:1px solid var(--line);font-size:13px;align-items:center}.interface-row:last-child{border-bottom:0}.interface-row.head{background:#ebebe5;color:#626860;font-size:12px;font-weight:800}.interface-row strong{font-size:14px}
.flow-bg{background:#ecece5}.fusion-flow{display:grid;grid-template-columns:repeat(5,1fr);margin-top:47px}.flow-step{position:relative;padding:0 20px 0 0}.flow-step:not(:last-child):after{content:"";height:1px;background:#aaaFA5;position:absolute;left:19px;right:-2px;top:18px}.step-no{position:relative;z-index:1;width:38px;height:38px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-items:center;font:800 12px ui-monospace,monospace}.flow-step h3{font-size:17px;margin:19px 0 7px}.flow-step p{font-size:13px;color:#61675f;margin:0}
.verify-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:30px;align-items:stretch}.verify-image{min-height:415px;border-radius:var(--radius-lg);overflow:hidden;position:relative}.verify-image img{width:100%;height:100%}.verify-caption{position:absolute;left:22px;right:22px;bottom:22px;padding:18px;background:rgba(23,25,22,.91);color:#fff;border-radius:10px}.verify-caption b{font-size:15px;display:block}.verify-caption span{font-size:12px;color:#d1d6cd}.check-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:33px}.check-list h3{font-size:26px;line-height:1.3;margin:0 0 22px}.check-item{display:grid;grid-template-columns:28px 1fr;gap:13px;padding:18px 0;border-top:1px solid var(--line)}.check-item b{width:25px;height:25px;border-radius:50%;background:#eaf1c8;display:grid;place-items:center;color:#486000;font-size:12px}.check-item strong{font-size:15px;display:block}.check-item p{font-size:13px;color:var(--muted);margin:4px 0 0}
.scenario-wrap{background:var(--ink);color:#fff}.scenario-head{display:flex;justify-content:space-between;align-items:end;gap:30px}.scenario-head .eyebrow{color:var(--lime)}.scenario-head .section-intro{color:#cbd0c7}.scenario-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:14px;margin-top:42px}.scenario-card{min-height:285px;padding:26px;border:1px solid rgba(255,255,255,.17);border-radius:var(--radius);background:#252924;position:relative;overflow:hidden;transition:.22s}.scenario-card:first-child{background:linear-gradient(150deg,#343a30,#1d201d)}.scenario-card:hover{transform:translateY(-5px);border-color:var(--lime)}.case-num{color:var(--lime);font:700 12px ui-monospace,monospace}.scenario-card h3{font-size:23px;line-height:1.2;margin:58px 0 12px}.scenario-card p{font-size:13px;color:#c8cdc4;margin:0}.scenario-card .tag{position:absolute;bottom:23px;left:26px;background:transparent;border-color:#5f665d;color:#e1e5dd}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:72px}.faq-side p{color:var(--muted);font-size:15px}.faq-list details{border-top:1px solid var(--line);padding:0}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;cursor:pointer;padding:21px 42px 21px 0;font-size:17px;font-weight:800;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:4px;top:16px;font-size:25px;color:var(--orange);font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list p{margin:0;padding:0 30px 22px 0;font-size:14px;color:#5b625b}
.cta-section{padding:84px 0;background:var(--orange);color:#fff}.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:start}.cta-section .eyebrow{color:#fff}.cta-section .eyebrow i{background:var(--ink)}.cta-section h2{font-size:clamp(31px,4vw,48px);line-height:1.18;letter-spacing:-.05em;margin:15px 0}.cta-section p{color:#fff4ed;margin:0}.contact-form{background:var(--white);border-radius:var(--radius-lg);padding:25px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:800}.field input,.field textarea{width:100%;border:1px solid #cbd0c7;border-radius:8px;background:#fff;padding:12px 13px;color:var(--ink);transition:.2s}.field textarea{height:84px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--orange);outline:0;box-shadow:0 0 0 3px rgba(239,117,39,.15)}.field input:invalid:not(:placeholder-shown){border-color:#b8412e}.form-note{font-size:12px;color:var(--muted);margin:0}.form-submit{grid-column:1/-1;display:flex;align-items:center;gap:13px;flex-wrap:wrap}
.site-footer{background:var(--ink);color:#d4d8d0;padding:66px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:45px}.footer-logo{color:#fff;margin-bottom:16px}.footer-brand p,.footer-col p{font-size:13px;color:#adb4aa;margin:0 0 9px}.footer-col h3{font-size:14px;color:#fff;margin:4px 0 17px}.footer-col a{display:block;font-size:13px;color:#b9c0b6;margin:0 0 10px}.footer-col a:hover{color:var(--lime)}.footer-bottom{margin-top:52px;padding-top:20px;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#969e94}.footer-bottom a:hover{color:var(--lime)}
@media(max-width:1024px){.nav-links{gap:15px}.nav-cta{display:none}.sensor-matrix{grid-template-columns:repeat(2,1fr)}.fusion-flow{grid-template-columns:repeat(3,1fr);gap:30px}.flow-step:not(:last-child):after{display:none}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:768px){.container{width:min(100% - 40px,1240px)}.top-meta{display:none}.topbar-in{justify-content:center}.nav-in{height:67px;position:relative}.logo{min-width:0;font-size:15px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:0;right:0;top:67px;background:var(--white);padding:10px 20px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.nav-links.open{display:flex}.nav-links a{padding:13px 0}.nav-links a:after{bottom:7px}.hero-grid,.interface-layout,.verify-grid,.faq-grid,.cta-grid{grid-template-columns:1fr;gap:32px}.page-hero{padding:52px 0}.hero-visual{height:230px}.section{padding:70px 0}.scenario-grid{grid-template-columns:1fr}.scenario-card{min-height:220px}.faq-grid{gap:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:34px}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.container{width:calc(100% - 40px)}.section{padding:58px 0}.page-hero h1{font-size:37px}.page-hero p,.section-intro{font-size:15px}.sensor-matrix{grid-template-columns:1fr}.sensor-cell{min-height:185px}.interface-row{grid-template-columns:1fr;gap:5px;padding:16px}.interface-row.head{display:none}.interface-row span:before{content:attr(data-label)"：";font-weight:800;color:#697069}.fusion-flow{grid-template-columns:1fr;gap:0;margin-top:30px}.flow-step{padding:0 0 24px 53px}.step-no{position:absolute;left:0;top:0}.flow-step:not(:last-child):before{content:"";position:absolute;left:18px;top:38px;bottom:0;width:1px;background:#aaafa5}.flow-step h3{margin:0 0 7px}.contact-form{grid-template-columns:1fr;padding:20px}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block;line-height:2}.anchor-list a{padding:14px 16px}.scenario-head{display:block}.scenario-head .section-intro{margin-top:15px}}

/* roulang page: category1 */
:root{
 --ink:#171916;--ink-2:#262a25;--paper:#f6f5f0;--white:#fffefa;--line:#d9d9d1;
 --muted:#697069;--orange:#ef7527;--orange-dark:#c85614;--lime:#c7e84a;--steel:#aeb4ab;
 --radius:14px;--radius-lg:22px;--shadow:0 18px 45px rgba(23,25,22,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.section{padding:94px 0}
.eyebrow{display:flex;align-items:center;gap:9px;color:#596055;font-size:12px;letter-spacing:.12em;font-weight:800}
.eyebrow i{width:8px;height:8px;background:var(--orange);border-radius:50%;display:block}
.section-title{font-size:clamp(29px,4vw,48px);line-height:1.2;letter-spacing:-.05em;font-weight:900;margin:14px 0 18px}
.section-intro{max-width:760px;font-size:16px;color:#545a53;margin:0}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:0 21px;border:1px solid transparent;border-radius:9px;font-size:14px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 10px 20px rgba(200,86,20,.22)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--lime);border-color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink);border-color:#b7bbb3}
.btn-outline:hover{border-color:var(--ink);background:#fff}
.tag{display:inline-flex;align-items:center;border:1px solid #cfd2c9;padding:4px 10px;border-radius:999px;font-size:12px;color:#62685f;background:#fbfbf7}
.topbar{background:var(--ink);color:#dfe3dc;font-size:12px}
.topbar-in{height:39px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-meta{display:flex;align-items:center;gap:18px}
.site-header{background:rgba(255,254,250,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.nav-in{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.logo{display:flex;align-items:center;gap:10px;min-width:228px;font-size:17px;font-weight:900;letter-spacing:-.04em}
.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:8px;position:relative;overflow:hidden;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
.logo-mark:before{width:24px;height:24px;left:9px;top:8px}
.logo-mark:after{width:14px;height:14px;left:2px;top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}
.nav-links a{position:relative;padding:26px 0;white-space:nowrap}
.nav-links a:after{content:"";height:2px;background:var(--orange);position:absolute;left:0;right:100%;bottom:18px;transition:.2s}
.nav-links a:hover:after,.nav-links a.active:after{right:0}
.nav-cta{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:8px}
.menu-toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}

.category-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.category-hero:before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.35}
.category-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(23,25,22,.97),rgba(23,25,22,.78) 53%,rgba(23,25,22,.48))}
.hero-inner{min-height:488px;display:grid;grid-template-columns:7fr 5fr;gap:45px;align-items:center;position:relative;z-index:1;padding:70px 0}
.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;color:#d1d7cd;font-size:13px;margin-bottom:27px}
.breadcrumb b{color:var(--lime);font-weight:700}
.hero-label{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.13em}
.hero-label:before{content:"01";font-family:ui-monospace,monospace;border:1px solid rgba(199,232,74,.65);padding:3px 7px;border-radius:20px}
.hero-copy h1{max-width:760px;font-size:clamp(38px,5.2vw,62px);line-height:1.1;letter-spacing:-.06em;margin:18px 0 20px;font-weight:900}
.hero-copy p{max-width:720px;color:#e0e4dd;font-size:16px;margin:0}
.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:25px}
.hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.26);border-radius:99px;padding:5px 11px;color:#eef0eb}
.algorithm-board{align-self:end;background:rgba(24,27,23,.85);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:22px;box-shadow:0 20px 45px rgba(0,0,0,.24)}
.board-head{display:flex;justify-content:space-between;align-items:center;color:#dce1d9;font-size:12px;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:14px}
.status-live{color:var(--lime);font-weight:800}
.status-live:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;margin-right:6px}
.board-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding-top:18px}
.board-node{background:#30342e;border-radius:9px;padding:12px;min-height:85px}
.board-node small{display:block;color:#aeb5a9;font:11px ui-monospace,monospace}
.board-node b{display:block;color:#fff;font-size:13px;margin-top:9px}
.board-node.emphasis{background:var(--orange)}
.board-node.emphasis small,.board-node.emphasis b{color:#fff}
.topic-nav{padding:20px 0;border-bottom:1px solid var(--line);background:#fffefa}
.topic-nav-in{display:flex;gap:10px;align-items:center;overflow:auto;padding-bottom:2px}
.topic-nav a{padding:8px 14px;border:1px solid #d5d8d0;border-radius:99px;white-space:nowrap;font-size:13px;font-weight:700;color:#596057;transition:.2s}
.topic-nav a:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.intro-grid{display:grid;grid-template-columns:4fr 8fr;gap:80px;align-items:start}
.intro-aside{border-top:2px solid var(--ink);padding-top:17px}
.intro-aside p{font-size:14px;color:var(--muted);margin:12px 0 0}
.intro-content{font-size:18px;line-height:1.95;color:#353a34}
.intro-content p{margin:0 0 18px}
.callout{border-left:4px solid var(--orange);padding:15px 18px;background:#fffefa;font-size:14px;color:#515750;margin-top:25px}
.algorithm-list{margin-top:46px;border-top:1px solid var(--line)}
.algorithm-item{display:grid;grid-template-columns:92px 2.2fr 2fr 1.2fr;gap:26px;align-items:center;padding:25px 4px;border-bottom:1px solid var(--line);transition:.22s}
.algorithm-item:hover{padding-left:14px;background:rgba(255,255,255,.48)}
.item-index{font:800 13px ui-monospace,monospace;color:var(--orange)}
.item-title h3{font-size:19px;letter-spacing:-.03em;margin:0 0 5px}
.item-title p,.item-detail{margin:0;font-size:13px;color:var(--muted);line-height:1.75}
.item-tags{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.item-tags span{font:11px ui-monospace,monospace;background:#e7e8e1;color:#50574d;padding:4px 7px;border-radius:4px}
.more-line{display:flex;justify-content:space-between;gap:20px;align-items:center;padding-top:24px;font-size:14px;color:#5c625b}
.more-line a{font-weight:800;color:var(--orange)}
.more-line a:hover{text-decoration:underline}

.process-section{background:#ebece6}
.process-grid{display:grid;grid-template-columns:4fr 8fr;gap:65px;align-items:start}
.process-steps{border-left:1px solid #b8bcb3;margin-top:5px}
.process-step{padding:0 0 30px 29px;position:relative}
.process-step:before{content:"";position:absolute;width:13px;height:13px;background:var(--paper);border:3px solid var(--orange);border-radius:50%;left:-9px;top:6px}
.process-step:last-child{padding-bottom:0}
.process-step b{display:block;font:700 12px ui-monospace,monospace;color:var(--orange)}
.process-step h3{margin:6px 0;font-size:19px;letter-spacing:-.03em}
.process-step p{margin:0;color:#596059;font-size:14px}
.process-step em{font-style:normal;color:#363c35;font-size:12px;font-weight:800;display:block;margin-top:8px}
.data-layout{display:grid;grid-template-columns:5fr 7fr;gap:58px;align-items:center}
.data-image{position:relative;min-height:390px;border-radius:var(--radius-lg);overflow:hidden;background:var(--ink)}
.data-image img{position:absolute;width:100%;height:100%;inset:0}
.data-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(23,25,22,.72),transparent 60%)}
.data-image p{position:absolute;z-index:2;left:24px;bottom:21px;right:24px;color:#fff;margin:0;font-size:13px}
.spec-panel{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);overflow:hidden}
.spec-row{display:grid;grid-template-columns:1.15fr 1.7fr;gap:15px;padding:16px 19px;border-bottom:1px solid var(--line);font-size:14px}
.spec-row:last-child{border-bottom:0}
.spec-row strong{font-size:13px}
.spec-row span{color:#596057}
.case-section{background:var(--ink);color:#fff;overflow:hidden}
.case-heading{display:flex;justify-content:space-between;gap:36px;align-items:end}
.case-section .eyebrow{color:var(--lime)}
.case-section .section-intro{color:#cbd0c8}
.case-wall{display:grid;grid-template-columns:1.4fr .85fr .85fr;gap:16px;margin-top:42px}
.case-card{min-height:285px;padding:24px;display:flex;flex-direction:column;justify-content:flex-end;border-radius:14px;position:relative;overflow:hidden;background:#32362f}
.case-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,17,14,.9),rgba(15,17,14,.08))}
.case-card img{position:absolute;inset:0;width:100%;height:100%;opacity:.75;transition:.35s}
.case-card:hover img{transform:scale(1.05)}
.case-card>*{position:relative;z-index:1}
.case-card small{font:700 11px ui-monospace,monospace;color:var(--lime)}
.case-card h3{font-size:22px;line-height:1.3;margin:9px 0 8px;letter-spacing:-.04em}
.case-card p{font-size:13px;line-height:1.7;color:#d8ddd5;margin:0}
.case-card.large{min-height:370px}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:40px}
.scene-card{display:grid;grid-template-columns:145px 1fr;background:#fffefa;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s}
.scene-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.scene-card img{width:100%;height:100%}
.scene-content{padding:21px}
.scene-content .tag{margin-bottom:10px}
.scene-content h3{font-size:18px;line-height:1.4;letter-spacing:-.03em;margin:0 0 7px}
.scene-content p{font-size:13px;color:var(--muted);margin:0}
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:70px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line);padding:0}
.faq-list summary{list-style:none;cursor:pointer;padding:20px 38px 20px 0;font-size:16px;font-weight:800;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";font-size:26px;font-weight:400;position:absolute;right:4px;top:15px;color:var(--orange);transition:.2s}
.faq-list details[open] summary:after{transform:rotate(45deg)}
.faq-list details p{margin:0;padding:0 36px 21px 0;font-size:14px;color:#596057}
.cta-section{padding:80px 0;background:var(--orange);color:#fff}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:75px;align-items:center}
.cta-title{font-size:clamp(30px,4vw,45px);line-height:1.22;letter-spacing:-.05em;margin:10px 0 14px;font-weight:900}
.cta-copy p{margin:0;color:#fff0e8;max-width:490px}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:5px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;font-weight:800;color:#fff}
.field input,.field textarea{width:100%;border:1px solid rgba(255,255,255,.4);border-radius:8px;background:#fff;color:var(--ink);padding:12px 13px;outline:0;transition:.2s}
.field input:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(199,232,74,.6)}
.field textarea{height:82px;resize:vertical}
.form-note{font-size:12px;color:#fff2eb;margin:0}
.submit-btn{background:var(--ink);color:#fff;border:1px solid var(--ink)}
.submit-btn:hover{background:#30352f}
.site-footer{background:#111310;color:#d1d5ce;padding:65px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:38px}
.footer-logo{color:#fff;margin-bottom:15px}
.footer-brand p,.footer-col p{font-size:13px;line-height:1.8;color:#adb4aa;margin:0 0 9px}
.footer-col h3{color:#fff;font-size:14px;margin:0 0 15px}
.footer-col a{display:block;font-size:13px;color:#b9c0b5;margin:0 0 9px;transition:.2s}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid #363b34;margin-top:44px;padding:20px 0;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#92998f}
.footer-bottom a:hover{color:var(--lime)}
@media(max-width:1100px){
 .nav-links{gap:15px;font-size:13px}.nav-cta{display:none}.logo{min-width:200px}
 .algorithm-item{grid-template-columns:65px 2fr 2fr}.item-tags{justify-content:flex-start}.item-tags{grid-column:2/-1}
}
@media(max-width:820px){
 .top-meta span:first-child{display:none}.nav-in{height:68px}.menu-toggle{display:block;order:3}.nav-links{position:absolute;display:none;left:0;right:0;top:68px;background:#fffefa;border-bottom:1px solid var(--line);padding:10px 24px 18px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 12px 26px rgba(0,0,0,.08)}.nav-links.open{display:flex}.nav-links a{padding:13px 0}.nav-links a:after{bottom:7px}.logo{min-width:0;font-size:15px}.logo-mark{width:28px;height:28px}
 .hero-inner,.intro-grid,.process-grid,.data-layout,.faq-wrap,.cta-grid{grid-template-columns:1fr;gap:36px}.hero-inner{padding:55px 0}.algorithm-board{max-width:540px;width:100%}
 .section{padding:72px 0}.intro-content{font-size:16px}.case-wall{grid-template-columns:1fr 1fr}.case-card.large{grid-column:1/-1;min-height:330px}.footer-grid{grid-template-columns:1.4fr 1fr}
}
@media(max-width:560px){
 .container{width:min(100% - 40px,1240px)}.topbar-in{height:35px}.top-meta{gap:0}.top-meta span:not(:last-child){display:none}
 .hero-copy h1{font-size:39px}.category-hero .hero-inner{min-height:0}.board-steps{gap:7px}.board-node{padding:9px;min-height:75px}.board-node b{font-size:11px}
 .section-title{font-size:30px}.topic-nav{padding:14px 0}.topic-nav-in{margin-right:-20px}.algorithm-list{margin-top:28px}.algorithm-item{grid-template-columns:50px 1fr;gap:10px;padding:19px 0}.item-detail{grid-column:2}.item-tags{grid-column:2;justify-content:flex-start}
 .process-step{padding-left:24px}.data-image{min-height:285px}.spec-row{grid-template-columns:1fr;padding:14px 16px;gap:3px}
 .case-heading{display:block}.case-wall,.scene-grid{grid-template-columns:1fr}.case-card.large{grid-column:auto}.scene-card{grid-template-columns:112px 1fr}.scene-content{padding:16px}.scene-content h3{font-size:16px}
 .faq-wrap{gap:28px}.cta-section{padding:62px 0}.contact-form{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{display:block;line-height:2}.footer-bottom span{display:block}
}

/* roulang page: category4 */
:root{
 --ink:#171916;--ink-2:#262a25;--paper:#f6f5f0;--white:#fffefa;--line:#d9d9d1;
 --muted:#697069;--orange:#ef7527;--orange-dark:#c85614;--lime:#c7e84a;--steel:#aeb4ab;
 --radius:14px;--radius-lg:22px;--shadow:0 18px 45px rgba(23,25,22,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.section{padding:96px 0}
.eyebrow{display:flex;align-items:center;gap:9px;color:#596055;font-size:12px;letter-spacing:.12em;font-weight:800;text-transform:uppercase}
.eyebrow i{width:8px;height:8px;background:var(--orange);border-radius:50%;display:block}
.section-title{font-size:clamp(29px,4vw,48px);line-height:1.2;letter-spacing:-.05em;font-weight:850;margin:14px 0 18px}
.section-intro{max-width:770px;margin:0;color:#565d55;font-size:16px}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 21px;border:1px solid transparent;border-radius:9px;font-size:14px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 10px 20px rgba(200,86,20,.22)}
.btn-outline{border-color:#b7bbb3;background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--white);border-color:var(--ink)}
.tag{display:inline-flex;align-items:center;border:1px solid #cfd2c9;padding:4px 10px;border-radius:999px;font-size:12px;color:#5d655d;background:#fbfbf7}
.topbar{background:var(--ink);color:#dfe3dc;font-size:12px}
.topbar-in{height:39px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-meta{display:flex;align-items:center;gap:18px}
.site-nav{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40;backdrop-filter:blur(10px)}
.nav-in{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.logo{display:flex;align-items:center;gap:10px;min-width:228px;font-size:17px;font-weight:900;letter-spacing:-.04em}
.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:8px;position:relative;overflow:hidden;flex:0 0 auto}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
.logo-mark:before{width:24px;height:24px;left:9px;top:8px}
.logo-mark:after{width:14px;height:14px;left:2px;top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}
.nav-links a{position:relative;padding:26px 0;white-space:nowrap}
.nav-links a:after{content:"";height:2px;background:var(--orange);position:absolute;left:0;right:100%;bottom:18px;transition:.2s}
.nav-links a:hover:after,.nav-links a.active:after{right:0}
.nav-cta{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:8px}
.menu-toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}
.page-hero{padding:76px 0 74px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
.page-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,22,19,.94),rgba(20,22,19,.56)),url('/assets/images/backpic/back-6.webp') center/cover;opacity:.78}
.page-hero .container{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:50px;align-items:center}
.breadcrumb{font-size:13px;color:#c9cec5;display:flex;gap:10px;align-items:center}
.breadcrumb b{color:var(--lime)}
.page-hero h1{font-size:clamp(38px,5.4vw,67px);line-height:1.08;letter-spacing:-.065em;margin:20px 0;font-weight:900}
.page-hero p{max-width:690px;color:#e1e4df;font-size:16px;margin:0}
.check-list{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;max-width:680px}
.check-list span{font-size:13px;color:#f0f2ec;display:flex;gap:9px;align-items:center}
.check-list i{width:18px;height:18px;background:var(--lime);color:var(--ink);font-style:normal;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:900}
.hero-panel{background:rgba(31,34,29,.88);border:1px solid rgba(255,255,255,.16);padding:23px;border-radius:var(--radius-lg);box-shadow:0 20px 40px rgba(0,0,0,.18)}
.hero-panel img{width:100%;height:205px;border-radius:12px;opacity:.9}
.panel-status{display:flex;justify-content:space-between;align-items:center;margin-top:17px;font-size:13px}
.panel-status b{color:var(--lime)}
.anchor-bar{background:var(--white);border-bottom:1px solid var(--line)}
.anchor-bar .container{display:flex;gap:8px;padding:14px 0;overflow:auto}
.anchor-bar a{white-space:nowrap;padding:7px 13px;border:1px solid transparent;border-radius:999px;font-size:13px;font-weight:700;color:#5d655d}
.anchor-bar a:hover{background:#f0f0ea;border-color:var(--line);color:var(--ink)}
.architecture{display:grid;grid-template-columns:4fr 8fr;gap:50px;align-items:start}
.arch-side{padding:28px;background:#ecece5;border-radius:var(--radius-lg);position:sticky;top:110px}
.arch-side h3{margin:8px 0 12px;font-size:22px;line-height:1.3}
.arch-side p{font-size:14px;color:#5e655d;margin:0}
.arch-list{margin:25px 0 0;padding:0;list-style:none}
.arch-list li{padding:13px 0;border-top:1px solid #d1d2ca;font-size:13px;font-weight:700;display:flex;justify-content:space-between}
.arch-list li b{font:700 12px ui-monospace,monospace;color:var(--orange)}
.deploy-list{border-top:1px solid var(--line)}
.deploy-item{display:grid;grid-template-columns:70px 1fr auto;gap:24px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line);transition:.2s}
.deploy-item:hover{padding-left:12px;background:rgba(255,255,255,.35)}
.deploy-num{font:800 13px ui-monospace,monospace;color:var(--orange)}
.deploy-item h3{font-size:21px;letter-spacing:-.035em;margin:0 0 6px}
.deploy-item p{font-size:14px;color:#5e655d;margin:0;max-width:650px}
.deploy-tags{display:flex;justify-content:flex-end;gap:6px;flex-wrap:wrap;max-width:180px}
.dark-section{background:var(--ink);color:#fff}
.dark-section .eyebrow{color:#c9cec6}
.dark-section .section-intro{color:#d4d9d1}
.pipeline{display:grid;grid-template-columns:repeat(5,1fr);margin-top:48px;border-top:1px solid rgba(255,255,255,.22)}
.pipe{padding:23px 22px 8px 0;position:relative;border-right:1px solid rgba(255,255,255,.14)}
.pipe:last-child{border:0}
.pipe:before{content:"";position:absolute;top:-7px;left:0;width:13px;height:13px;border-radius:50%;background:var(--lime)}
.pipe b{font:700 12px ui-monospace,monospace;color:var(--lime)}
.pipe h3{font-size:18px;line-height:1.3;margin:30px 0 9px}
.pipe p{font-size:13px;line-height:1.75;color:#c8cdc5;margin:0}
.compat-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.compat-table{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compat-row{display:grid;grid-template-columns:1.25fr 1fr 1.5fr;gap:15px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:14px;align-items:center}
.compat-row:last-child{border-bottom:0}
.compat-row.header{background:#e9e9e2;font-size:12px;color:#62685e;font-weight:900}
.compat-row strong{font-size:14px}
.compat-row span{color:#5f665e}
.status-dot{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700}
.status-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
.case-strip{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.case-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;display:grid;grid-template-columns:42% 58%;transition:.22s}
.case-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.case-card img{height:100%;min-height:250px;width:100%}
.case-copy{padding:28px}
.case-copy h3{font-size:23px;line-height:1.3;margin:17px 0 12px;letter-spacing:-.04em}
.case-copy p{font-size:14px;color:#5b625a;margin:0}
.case-result{display:flex;gap:13px;margin-top:21px;padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:#62685f}
.case-result b{color:var(--orange)}
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:60px;align-items:start}
.faq-list details{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:0 20px;margin-bottom:12px;transition:.2s}
.faq-list details[open]{border-color:#afb4a9;box-shadow:0 8px 25px rgba(23,25,22,.05)}
.faq-list summary{padding:18px 30px 18px 0;font-size:16px;font-weight:800;cursor:pointer;list-style:none;position:relative}
.faq-list summary:after{content:"+";position:absolute;right:0;top:15px;font-size:24px;color:var(--orange);font-weight:400}
.faq-list details[open] summary:after{content:"−"}
.faq-list p{color:#5d655d;font-size:14px;margin:0;padding:0 0 18px}
.trust-bar{background:#e9e9e2;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:25px 24px;border-right:1px solid #ced0c8}
.trust-item:last-child{border-right:0}
.trust-item b{font-size:14px;display:block}
.trust-item span{font-size:12px;color:#656b63;display:block;margin-top:4px}
.contact-section{padding:92px 0;background:var(--orange)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:70px;align-items:center}
.contact-section .eyebrow{color:#572407}
.contact-section h2{font-size:clamp(31px,4vw,48px);line-height:1.18;letter-spacing:-.05em;margin:14px 0 18px}
.contact-section p{max-width:530px;color:#572407}
.form-panel{background:var(--white);padding:28px;border-radius:var(--radius-lg);box-shadow:0 18px 35px rgba(95,42,10,.18)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:800}
.field input,.field textarea,.field select{width:100%;border:1px solid #cfd1ca;background:#fff;padding:12px 13px;border-radius:8px;color:var(--ink);transition:.2s}
.field textarea{resize:vertical;min-height:93px}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(239,117,39,.16);outline:0}
.field input:invalid:not(:placeholder-shown){border-color:#bd4d37}
.form-note{font-size:12px;color:#656b63;margin:14px 0 0}
.site-footer{background:var(--ink);color:#fff;padding:70px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:42px}
.footer-logo{color:#fff;margin-bottom:18px}
.footer-brand p,.footer-col p{font-size:13px;line-height:1.85;color:#cbd0c8;margin:0 0 8px}
.footer-col h3{font-size:14px;color:var(--lime);margin:0 0 14px}
.footer-col a{display:block;color:#dce0d9;font-size:13px;margin:8px 0;transition:.2s}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:43px;padding-top:19px;display:flex;justify-content:space-between;gap:16px;font-size:12px;color:#aeb5ac}
.footer-bottom a:hover{color:var(--lime)}
@media(max-width:1100px){
 .nav-links{gap:15px;font-size:13px}.logo{min-width:205px;font-size:15px}
 .page-hero .container,.architecture,.compat-grid,.faq-layout,.contact-grid{gap:34px}
 .case-strip{grid-template-columns:1fr}.pipeline{grid-template-columns:repeat(3,1fr)}
 .pipe:nth-child(3){border-right:0}.pipe:nth-child(n+4){margin-top:25px}
}
@media(max-width:820px){
 .top-meta span:first-child{display:none}.nav-cta{display:none}.menu-toggle{display:block}
 .nav-links{position:absolute;top:76px;left:0;right:0;background:var(--white);display:none;flex-direction:column;align-items:stretch;padding:10px 24px 20px;border-bottom:1px solid var(--line);box-shadow:0 12px 22px rgba(0,0,0,.08)}
 .nav-links.open{display:flex}.nav-links a{padding:12px 0}.nav-links a:after{bottom:7px}
 .page-hero .container,.architecture,.compat-grid,.faq-layout,.contact-grid{grid-template-columns:1fr}
 .page-hero{padding:58px 0}.hero-panel{max-width:580px}.arch-side{position:static}
 .deploy-item{grid-template-columns:54px 1fr}.deploy-tags{grid-column:2;justify-content:flex-start;max-width:none}
 .trust-grid{grid-template-columns:1fr 1fr}.trust-item:nth-child(2){border-right:0}.trust-item:nth-child(-n+2){border-bottom:1px solid #ced0c8}
 .footer-grid{grid-template-columns:1.6fr 1fr 1fr}
 .footer-brand{grid-column:1/-1}
}
@media(max-width:560px){
 .container{width:min(100% - 40px,1240px)}.section{padding:68px 0}
 .topbar-in{justify-content:center}.top-meta{gap:0}.top-meta span:not(:last-child){display:none}
 .nav-in{height:68px}.nav-links{top:68px}.logo{min-width:0;font-size:14px;gap:8px}.logo-mark{width:27px;height:27px}
 .page-hero h1{font-size:39px}.check-list{grid-template-columns:1fr}.hero-panel img{height:165px}
 .anchor-bar .container{width:100%;padding-left:20px}
 .deploy-item{gap:14px;padding:21px 0}.deploy-item h3{font-size:18px}
 .pipeline{grid-template-columns:1fr;border-top:0;margin-top:26px}.pipe{border-right:0;border-top:1px solid rgba(255,255,255,.18);padding:20px 0 18px;margin:0!important}.pipe:before{top:-7px}
 .compat-row{grid-template-columns:1fr;padding:14px 16px;gap:4px}.compat-row.header{display:none}
 .case-card{grid-template-columns:1fr}.case-card img{height:205px;min-height:0}.case-copy{padding:23px}
 .trust-grid{grid-template-columns:1fr}.trust-item{border-right:0!important;border-bottom:1px solid #ced0c8}.trust-item:last-child{border-bottom:0}
 .form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.form-panel{padding:21px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
 --ink:#171916;--ink-2:#262a25;--paper:#f6f5f0;--white:#fffefa;--line:#d9d9d1;
 --muted:#697069;--orange:#ef7527;--orange-dark:#c85614;--lime:#c7e84a;--steel:#aeb4ab;
 --radius:14px;--radius-lg:22px;--shadow:0 18px 45px rgba(23,25,22,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.section{padding:100px 0}
.eyebrow{display:flex;align-items:center;gap:9px;color:#596055;font-size:12px;letter-spacing:.12em;font-weight:800}
.eyebrow i{width:8px;height:8px;background:var(--orange);border-radius:50%;display:block}
.section-title{font-size:clamp(29px,4vw,48px);line-height:1.2;letter-spacing:-.055em;font-weight:900;margin:14px 0 18px}
.section-intro{max-width:760px;font-size:16px;color:#545a53;margin:0}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 21px;border:1px solid transparent;border-radius:9px;font-size:14px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 10px 20px rgba(200,86,20,.22)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--lime);border-color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink);border-color:#b7bbb3}
.btn-outline:hover{border-color:var(--ink);background:#fff}
.tag{display:inline-flex;align-items:center;border:1px solid #cfd2c9;padding:4px 10px;border-radius:999px;font-size:12px;color:#62685f;background:#fbfbf7}
.topbar{background:var(--ink);color:#dfe3dc;font-size:12px}
.topbar-in{height:39px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-meta{display:flex;align-items:center;gap:18px}
.site-header{position:relative;z-index:20;background:rgba(255,254,250,.98);border-bottom:1px solid var(--line)}
.nav-in{height:76px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.logo{display:flex;align-items:center;gap:10px;min-width:228px;font-size:17px;font-weight:900;letter-spacing:-.04em}
.logo-mark{width:30px;height:30px;background:var(--ink);border-radius:8px;position:relative;overflow:hidden;flex:0 0 auto}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
.logo-mark:before{width:24px;height:24px;left:9px;top:8px}
.logo-mark:after{width:14px;height:14px;left:2px;top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700}
.nav-links a{position:relative;padding:26px 0;white-space:nowrap}
.nav-links a:after{content:"";height:2px;background:var(--orange);position:absolute;left:0;right:100%;bottom:18px;transition:.2s}
.nav-links a:hover:after,.nav-links a.active:after{right:0}
.nav-cta{white-space:nowrap}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;border-radius:8px}
.menu-toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}
.page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(18,20,17,.93) 0%,rgba(18,20,17,.75) 48%,rgba(18,20,17,.34) 100%),url('/assets/images/backpic/back-5.webp');background-size:cover;background-position:center}
.page-hero .container{position:relative;padding:76px 0 82px}
.breadcrumb{display:flex;gap:9px;align-items:center;color:#c4c9c0;font-size:13px;margin-bottom:27px}
.breadcrumb b{color:var(--lime);font-weight:700}
.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:end}
.page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.065em;margin:0 0 21px;font-weight:900;max-width:760px}
.page-hero p{color:#dce1d9;font-size:16px;max-width:720px;margin:0}
.hero-question{border-left:3px solid var(--lime);padding:8px 0 8px 19px;font-size:17px;font-weight:800;color:#fff;margin:25px 0 28px}
.hero-panel{background:#f8f7f1;color:var(--ink);border-radius:var(--radius-lg);padding:25px;box-shadow:var(--shadow)}
.hero-panel h2{font-size:18px;line-height:1.4;margin:0 0 15px;font-weight:900}
.hero-panel p{font-size:13px;color:#62685f;line-height:1.7;margin:0 0 17px}
.hero-form-line{display:flex;gap:10px}
.hero-form-line input{width:100%;min-width:0;border:1px solid #c8ccc4;border-radius:8px;background:#fff;padding:0 13px;height:46px;color:var(--ink)}
.hero-form-line input:focus{border-color:var(--orange);outline:none;box-shadow:0 0 0 3px rgba(239,117,39,.15)}
.anchor-strip{border-bottom:1px solid var(--line);background:var(--white)}
.anchor-list{display:flex;align-items:center;gap:0;overflow:auto;scrollbar-width:none}
.anchor-list::-webkit-scrollbar{display:none}
.anchor-list a{font-size:13px;font-weight:800;color:#5c625b;padding:18px 20px;border-right:1px solid var(--line);white-space:nowrap;transition:.2s}
.anchor-list a:first-child{border-left:1px solid var(--line)}
.anchor-list a:hover{background:var(--ink);color:#fff}
.intro-layout{display:grid;grid-template-columns:5fr 7fr;gap:76px;align-items:center}
.image-frame{position:relative;min-height:430px;border-radius:var(--radius-lg);overflow:hidden;background:#d8dbd3}
.image-frame img{position:absolute;inset:0;width:100%;height:100%}
.image-note{position:absolute;right:18px;bottom:18px;max-width:255px;background:var(--ink);color:#fff;padding:16px 17px;border-radius:10px}
.image-note b{display:block;color:var(--lime);font-size:12px;margin-bottom:3px}
.image-note span{font-size:12px;color:#d8ddd5;line-height:1.6}
.chain-list{margin-top:30px;border-top:1px solid var(--line)}
.chain-row{display:grid;grid-template-columns:38px 1fr auto;gap:14px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
.chain-row b{color:var(--orange);font:800 12px ui-monospace,SFMono-Regular,monospace}
.chain-row strong{font-size:14px}
.chain-row span{font-size:12px;color:var(--muted);text-align:right}
.test-section{background:#e9e9e2}
.split-heading{display:grid;grid-template-columns:4fr 8fr;gap:60px;align-items:end;margin-bottom:44px}
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.filter-btn{border:1px solid #c9ccc5;background:transparent;color:#60665e;border-radius:99px;padding:8px 13px;font-size:12px;font-weight:800;transition:.2s}
.filter-btn:hover,.filter-btn.active{background:var(--ink);border-color:var(--ink);color:#fff}
.scenario-list{border-top:1px solid #bdc1b8}
.scenario-item{display:grid;grid-template-columns:88px 2.1fr 1.25fr 1.4fr auto;gap:24px;align-items:center;padding:24px 10px;border-bottom:1px solid #bdc1b8;transition:.2s}
.scenario-item:hover{background:#f8f8f3;padding-left:18px;padding-right:18px}
.scenario-code{font:800 12px ui-monospace,SFMono-Regular,monospace;color:var(--orange)}
.scenario-item h3{font-size:17px;line-height:1.35;margin:0;font-weight:900}
.scenario-item p{font-size:13px;color:#5f665d;margin:4px 0 0;line-height:1.65}
.scenario-meta{font-size:13px;color:#4d544c}
.scenario-meta b{display:block;color:var(--ink);font-size:12px;margin-bottom:3px}
.result-status{font-size:12px;font-weight:800;white-space:nowrap}
.result-status:before{content:"";display:inline-block;width:7px;height:7px;background:var(--lime);border-radius:50%;margin-right:7px;vertical-align:middle}
.view-more{font-size:13px;font-weight:900;text-decoration:underline;text-decoration-color:var(--orange);text-underline-offset:5px;white-space:nowrap}
.process-grid{display:grid;grid-template-columns:4fr 8fr;gap:64px}
.process-rail{border-left:1px solid #c7cac2;margin-top:15px}
.process-item{position:relative;padding:0 0 36px 34px}
.process-item:before{content:"";position:absolute;left:-7px;top:6px;width:13px;height:13px;background:var(--paper);border:3px solid var(--orange);border-radius:50%}
.process-item:last-child{padding-bottom:0}
.process-no{color:var(--orange);font:800 12px ui-monospace,SFMono-Regular,monospace}
.process-item h3{font-size:20px;line-height:1.35;margin:5px 0 7px;font-weight:900}
.process-item p{font-size:14px;color:#5c625b;margin:0;max-width:670px}
.delivery{display:inline-block;font-size:12px;color:#50564f;background:#ecece5;padding:4px 10px;border-radius:5px;margin-top:11px}
.metric-wrap{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.metric-wrap:before{content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(199,232,74,.2);border-radius:50%;right:-130px;top:-180px}
.metric-heading{position:relative;display:flex;justify-content:space-between;gap:50px;align-items:end;margin-bottom:47px}
.metric-heading .eyebrow{color:var(--lime)}
.metric-heading .section-intro{color:#c9cec6}
.metric-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.2)}
.metric-card{padding:25px 22px;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}
.metric-card b{display:block;color:var(--lime);font:900 clamp(28px,3vw,42px) ui-monospace,SFMono-Regular,monospace;letter-spacing:-.08em}
.metric-card span{display:block;font-size:14px;font-weight:800;margin:9px 0 5px}
.metric-card p{font-size:12px;line-height:1.65;color:#c9cec6;margin:0}
.case-layout{display:grid;grid-template-columns:7fr 5fr;gap:30px}
.case-feature{min-height:480px;border-radius:var(--radius-lg);overflow:hidden;position:relative;background:#333}
.case-feature img{height:100%;width:100%;position:absolute;inset:0}
.case-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,19,16,.9),rgba(17,19,16,.04) 70%)}
.case-caption{position:absolute;z-index:2;left:32px;right:32px;bottom:28px;color:#fff}
.case-caption .tag{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.case-caption h3{font-size:27px;line-height:1.25;margin:14px 0 9px;font-weight:900}
.case-caption p{font-size:14px;line-height:1.7;color:#d9ddd6;max-width:620px;margin:0}
.case-side{display:grid;gap:20px}
.case-mini{padding:25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:.2s}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-mini b{font:800 12px ui-monospace,SFMono-Regular,monospace;color:var(--orange)}
.case-mini h3{font-size:19px;line-height:1.35;margin:24px 0 9px;font-weight:900}
.case-mini p{font-size:13px;color:#62685f;margin:0}
.faq-section{background:#efefe9}
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:80px}
.faq-list{border-top:1px solid #c9ccc4}
.faq-list details{border-bottom:1px solid #c9ccc4}
.faq-list summary{list-style:none;cursor:pointer;padding:21px 43px 21px 0;position:relative;font-size:16px;font-weight:900}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:5px;top:15px;font:400 28px Arial;color:var(--orange);transition:.2s}
.faq-list details[open] summary:after{transform:rotate(45deg)}
.faq-answer{padding:0 35px 21px 0;font-size:14px;color:#5d635c}
.trust-strip{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:25px 25px;border-right:1px solid var(--line);display:flex;gap:13px;align-items:flex-start}
.trust-item:first-child{border-left:1px solid var(--line)}
.trust-icon{width:31px;height:31px;display:grid;place-items:center;flex:0 0 auto;background:var(--lime);border-radius:50%;font-size:14px;font-weight:900}
.trust-item strong{display:block;font-size:14px;line-height:1.35}
.trust-item span{display:block;font-size:12px;color:#656b63;margin-top:3px;line-height:1.55}
.cta-section{padding:88px 0;background:var(--orange);color:#fff}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:75px;align-items:start}
.cta-section .eyebrow{color:#fff}
.cta-section .eyebrow i{background:var(--lime)}
.cta-section .section-title{margin-bottom:16px}
.cta-section .section-intro{color:#fff4eb}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fff9f3;padding:25px;border-radius:var(--radius-lg);color:var(--ink)}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;font-weight:900}
.field input,.field textarea,.field select{width:100%;border:1px solid #d5d3cb;border-radius:8px;background:#fff;padding:11px 13px;min-height:45px;color:var(--ink);transition:.2s}
.field textarea{min-height:90px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(239,117,39,.16)}
.form-error{display:none;font-size:12px;color:#b33f17;grid-column:1/-1;margin:0}
.form-error.show{display:block}
.form-note{font-size:12px;color:#726a61;margin:0;line-height:1.6}
.form-submit{width:max-content}
.site-footer{background:var(--ink);color:#d7dcd4;padding:65px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.45fr;gap:42px;padding-bottom:47px}
.footer-logo{color:#fff;margin-bottom:16px}
.footer-brand p,.footer-col p{font-size:13px;line-height:1.75;color:#aeb5ab;margin:0 0 7px}
.footer-col h3{font-size:14px;color:#fff;margin:3px 0 15px}
.footer-col a{display:block;font-size:13px;color:#b7beb4;margin:8px 0;transition:.2s}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);min-height:69px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:#aeb5ab}
.footer-bottom a:hover{color:var(--lime)}
@media(max-width:1100px){
 .nav-links{gap:15px;font-size:13px}.nav-cta{display:none}
 .scenario-item{grid-template-columns:72px 2fr 1.2fr 1.1fr auto;gap:14px}
 .footer-grid{grid-template-columns:1.7fr 1fr 1fr}
 .footer-brand{grid-column:1/-1;max-width:560px}
}
@media(max-width:820px){
 .section{padding:75px 0}.container{width:min(100% - 40px,1240px)}
 .top-meta span:first-child{display:none}.nav-in{height:67px}
 .logo{min-width:0;font-size:15px}.logo-mark{width:27px;height:27px}
 .menu-toggle{display:block}.nav-links{position:absolute;top:100%;left:0;right:0;display:none;align-items:stretch;flex-direction:column;gap:0;background:var(--white);border-bottom:1px solid var(--line);padding:9px 20px 18px;box-shadow:0 12px 25px rgba(23,25,22,.08)}
 .nav-links.open{display:flex}.nav-links a{padding:13px 0;border-bottom:1px solid #e4e4dd}.nav-links a:after{bottom:8px}
 .page-hero .container{padding:55px 0 62px}.page-hero-grid,.intro-layout,.process-grid,.faq-layout,.cta-grid{grid-template-columns:1fr;gap:38px}
 .hero-panel{max-width:570px}.split-heading{grid-template-columns:1fr;gap:22px}.filter-bar{justify-content:flex-start}
 .scenario-item{grid-template-columns:75px 1fr auto;gap:14px}.scenario-meta{display:none}
 .metric-heading{display:block}.metric-heading .section-intro{margin-top:16px}.metric-grid{grid-template-columns:1fr 1fr}
 .case-layout{grid-template-columns:1fr}.case-feature{min-height:410px}.faq-layout{gap:30px}
 .trust-grid{grid-template-columns:1fr 1fr}.trust-item:nth-child(3){border-left:1px solid var(--line)}
 .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
 body{font-size:15px}.container{width:calc(100% - 40px)}.section{padding:62px 0}
 .topbar-in{height:36px}.top-meta{gap:11px;font-size:11px}.top-meta span:last-child{display:none}
 .page-hero h1{font-size:38px}.page-hero p{font-size:15px}.hero-question{font-size:15px}
 .hero-form-line{flex-direction:column}.hero-form-line .btn{width:100%}
 .anchor-list a{padding:15px 15px}.image-frame{min-height:330px}
 .chain-row{grid-template-columns:30px 1fr}.chain-row span{display:none}
 .scenario-item{grid-template-columns:1fr auto;padding:20px 0}.scenario-code{grid-column:1/-1}.scenario-item h3{font-size:16px}.scenario-item p{font-size:12px}
 .process-item{padding-left:27px}.metric-grid{grid-template-columns:1fr}.metric-card{padding:22px 18px}
 .case-feature{min-height:410px}.case-caption{left:20px;right:20px;bottom:21px}.case-caption h3{font-size:23px}
 .trust-grid{grid-template-columns:1fr}.trust-item,.trust-item:nth-child(3){border-left:1px solid var(--line)}
 .contact-form{grid-template-columns:1fr;padding:19px}.field.full{grid-column:auto}.form-submit{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{padding:20px 0;align-items:flex-start;flex-direction:column;gap:8px}
}