/* roulang page: index */
:root{
  --ink:#171a18;--graphite:#202420;--lime:#c9f35b;--lime-hi:#dcff7e;--cyan:#24c9c4;
  --warm:#f6f5f0;--paper:#fffefa;--mist:#e8ebe5;--silver:#b8c0bb;--muted:#66706a;
  --line:rgba(28,35,30,.14);--darkline:rgba(255,255,255,.16);--radius:14px;--radius-lg:22px;
  --shadow:0 14px 35px rgba(29,38,31,.09);--container:1240px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth;overflow-x:hidden} body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden} 
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease} img{max-width:100%;display:block} button,input,select,textarea{font:inherit} button{cursor:pointer} ::selection{background:var(--lime);color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.site-wrap{overflow:hidden}.grid-container{max-width:var(--container)}.topline{background:var(--ink);color:#dce2dc;font-size:12px;letter-spacing:.03em}.topline .grid-container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}.tech-ticks,.top-contact{display:flex;align-items:center;gap:16px}.tech-ticks span{display:inline-flex;align-items:center;gap:6px}.tech-ticks span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}.top-contact a{color:#dce2dc}.top-contact a:hover{color:var(--lime)}
.header{position:relative;z-index:20;background:rgba(255,254,250,.96);border-bottom:1px solid var(--line)}.header .grid-container{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;display:flex;align-items:center;white-space:nowrap}.brand-mark{width:26px;height:26px;margin-right:9px;background:var(--lime);border-radius:7px;position:relative}.brand-mark:after{content:"";position:absolute;width:12px;height:12px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(45deg);left:5px;top:4px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px;flex:1}.desktop-nav a{height:80px;display:inline-flex;align-items:center;border-bottom:3px solid transparent;font-size:14px;font-weight:650;color:#3c4740}.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink);border-color:var(--lime)}.nav-cta,.button-main{background:var(--lime);color:var(--ink)!important;font-weight:800;border:1px solid var(--lime);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;letter-spacing:.01em}.nav-cta{min-height:42px;font-size:14px}.nav-cta:hover,.button-main:hover{background:var(--lime-hi);transform:translateY(-2px);box-shadow:0 8px 20px rgba(177,226,57,.25)}.button-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid rgba(255,255,255,.62);color:#fff;border-radius:8px;font-weight:700}.button-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--ink);color:white;border:0;border-radius:8px;width:46px;height:46px;font-size:22px}.off-canvas{background:var(--ink);color:white;padding:18px}.off-canvas .brand{color:var(--lime);margin-bottom:22px}.mobile-links a{display:block;color:#fff;border-bottom:1px solid var(--darkline);padding:15px 2px;font-weight:700}.mobile-links a:hover{color:var(--lime)}
.hero{min-height:650px;position:relative;display:flex;align-items:flex-end;background-image:linear-gradient(90deg,rgba(15,19,16,.92) 0%,rgba(15,19,16,.57) 52%,rgba(15,19,16,.28) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;color:white}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(12,15,13,.67),transparent 48%)}.hero-content{position:relative;width:100%;padding:84px 0 45px}.hero-copy{max-width:810px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(201,243,91,.58);border-radius:999px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 14px var(--lime)}h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(34px,5.3vw,66px);line-height:1.14;max-width:850px;letter-spacing:-.055em;margin:17px 0 20px;font-weight:800}.hero p{max-width:800px;font-size:17px;color:#edf1ec;margin-bottom:26px}.hero-actions{display:flex;gap:13px;flex-wrap:wrap}.play-control{position:absolute;right:18px;top:55px;width:70px;height:70px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.7);background:rgba(19,24,21,.54);color:var(--lime);font-size:23px}.play-control:hover{background:var(--lime);color:var(--ink);transform:scale(1.06)}
.metric-board{position:relative;margin-top:44px;background:rgba(25,30,26,.88);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}.metric{padding:18px 21px;border-right:1px solid rgba(255,255,255,.13)}.metric:last-child{border:0}.metric b{display:block;font-size:26px;color:var(--lime);line-height:1.1;letter-spacing:-.03em}.metric span{font-size:12px;color:#d7ddd6;display:block;margin-top:7px}
.section{padding:100px 0}.section-tight{padding:70px 0}.section-dark{background:var(--graphite);color:white}.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:36px}.section-head h2,.intro-copy h2,.case-copy h2,.cta-panel h2{font-size:clamp(27px,3.2vw,43px);line-height:1.2;letter-spacing:-.045em;font-weight:800;margin-bottom:0}.section-head p{max-width:490px;color:var(--muted);font-size:15px;margin:0}.section-dark .section-head p{color:#c8d0c9}.section-no{font-size:12px;font-weight:800;color:#728078;letter-spacing:.1em;margin-bottom:10px}.section-dark .section-no{color:var(--lime)}
.intro-block{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:42px;box-shadow:var(--shadow)}.intro-copy p{color:#59645d;margin:20px 0}.intro-image{height:100%;min-height:340px;border-radius:12px;overflow:hidden;position:relative}.intro-image img{width:100%;height:100%;object-fit:cover}.intro-image:after{content:"接口联调 / 版本追踪";position:absolute;bottom:16px;left:16px;padding:7px 11px;background:var(--lime);color:var(--ink);font-size:12px;font-weight:800;border-radius:5px}.evidence-row{display:flex;gap:9px;flex-wrap:wrap}.tag{border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#46524b;background:#fbfcf8}.tag.cyan{color:#087d79;border-color:rgba(36,201,196,.38);background:#ebfbfa}
.matrix{display:grid;grid-template-columns:1.15fr .85fr .85fr;grid-template-rows:repeat(2,188px);gap:14px}.service-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);padding:22px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}.service-card.large{grid-row:span 2;background:var(--ink);color:white;padding:30px}.service-card:nth-child(5){background:#eaf9f3}.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(36,201,196,.48)}.service-card h3{font-size:19px;line-height:1.3;margin:0 0 7px;font-weight:800}.service-card p{font-size:13px;color:var(--muted);line-height:1.6;margin:0}.service-card.large p{color:#cad3cb;font-size:15px}.service-card .mini-link{font-size:12px;font-weight:800;color:#0b8c88;margin-top:10px}.service-card.large .mini-link{color:var(--lime)}.card-index{font-size:42px;font-weight:800;line-height:.9;color:rgba(36,201,196,.23);position:absolute;right:14px;bottom:12px}.service-card.large .card-index{color:rgba(201,243,91,.2);font-size:76px}
.compare-shell{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--paper)}.compare-top{display:grid;grid-template-columns:1fr 1fr}.compare-label{padding:17px 25px;font-weight:800}.compare-label.old{background:#eceee9;color:#69726b}.compare-label.new{background:var(--lime);color:var(--ink)}.compare-row{display:grid;grid-template-columns:1.05fr 1fr 1fr;border-top:1px solid var(--line);align-items:center}.compare-row>div{padding:16px 24px;font-size:14px}.compare-row>div:not(:last-child){border-right:1px solid var(--line)}.compare-row strong{font-size:14px}.state-old{color:#7d8680}.state-new{font-weight:800;color:#167e79}.state-new:before{content:"●";color:var(--lime);background:var(--ink);font-size:9px;border-radius:50%;padding:1px 4px;margin-right:8px}
.products-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:17px}.product-main{grid-row:span 2;min-height:430px}.product-card{position:relative;min-height:205px;border-radius:var(--radius);overflow:hidden;background:var(--ink);color:white}.product-card img{position:absolute;width:100%;height:100%;object-fit:cover;opacity:.58;transition:transform .45s ease}.product-card:hover img{transform:scale(1.05)}.product-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,18,15,.91),rgba(14,18,15,.08))}.product-content{position:absolute;z-index:1;left:23px;right:23px;bottom:20px}.product-content h3{font-size:22px;margin:0 0 6px;font-weight:800}.product-content p{font-size:13px;line-height:1.55;margin:0 0 10px;color:#e4e9e4}.product-card .tag{background:rgba(255,255,255,.12);color:white;border-color:rgba(255,255,255,.3)}
.milestone-track{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0}.milestone-track:before{content:"";position:absolute;left:7%;right:7%;top:30px;height:2px;background:linear-gradient(90deg,var(--lime),var(--cyan))}.mile{position:relative;padding:0 18px}.mile-dot{width:62px;height:62px;border-radius:50%;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-weight:800;border:5px solid var(--warm);position:relative;z-index:1}.mile small{display:block;color:#188f8a;font-weight:800;letter-spacing:.07em;margin:16px 0 5px}.mile h3{font-size:17px;margin:0 0 7px;font-weight:800}.mile p{font-size:13px;line-height:1.6;color:var(--muted);margin:0}
.case-panel{border:1px solid var(--darkline);border-radius:var(--radius-lg);overflow:hidden}.case-visual{min-height:410px;position:relative;background:url('/assets/images/backpic/back-3.webp') center/cover}.case-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,24,20,.08),rgba(18,24,20,.65))}.case-number{position:absolute;z-index:2;right:22px;bottom:22px;border:1px solid rgba(201,243,91,.55);padding:14px;background:rgba(18,24,20,.83);color:#fff}.case-number b{display:block;color:var(--lime);font-size:31px;line-height:1}.case-number span{font-size:12px}.case-copy{padding:47px}.case-copy p{color:#c9d0ca;margin:18px 0 25px}.result-lines{border-top:1px solid var(--darkline)}.result-line{padding:11px 0;border-bottom:1px solid var(--darkline);display:flex;justify-content:space-between;gap:15px;font-size:13px}.result-line strong{color:var(--lime)}
.story-rail{display:flex;gap:16px;overflow-x:auto;padding:3px 2px 16px;scroll-snap-type:x mandatory}.story-rail::-webkit-scrollbar{height:6px}.story-rail::-webkit-scrollbar-thumb{background:var(--silver);border-radius:10px}.story{min-width:350px;max-width:390px;scroll-snap-align:start;border-top:3px solid var(--cyan);padding:25px;background:var(--paper);border-radius:0 0 var(--radius) var(--radius);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.story:nth-child(2){border-color:var(--lime)}.story:nth-child(3){border-color:var(--ink)}.story small{font-weight:800;color:#148b87}.story h3{font-size:19px;margin:13px 0 9px}.story p{font-size:14px;color:var(--muted);margin:0}.stats-band{background:var(--lime);padding:30px 0}.stats-band .grid-container{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.stat b{display:block;font-size:38px;letter-spacing:-.05em;line-height:1;color:var(--ink)}.stat span{font-size:13px;font-weight:750;color:#34422d;margin-top:8px;display:block}
.testimonials{display:grid;grid-template-columns:.9fr 1.1fr 1fr;gap:16px;align-items:start}.quote{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:23px}.quote:nth-child(2){margin-top:35px;background:#ecf8f3}.quote:nth-child(3){margin-top:10px}.quote-mark{color:var(--cyan);font-size:38px;line-height:1;font-weight:800}.quote p{font-size:14px;color:#49554d;margin:10px 0 18px}.quote footer{font-size:12px;color:#68736c;font-weight:700}.quote footer b{color:var(--ink);display:block;font-size:13px}
.news-layout{display:grid;grid-template-columns:1.45fr .8fr;gap:42px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:95px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news-date{font-size:12px;font-weight:800;color:#66716a}.news-item h3{font-size:17px;margin:0 0 5px;font-weight:800}.news-item p{font-size:13px;color:var(--muted);margin:0}.arrow-link{color:#098c88;font-weight:800;font-size:20px;padding:8px}.arrow-link:hover{transform:translateX(4px);color:var(--ink)}.news-feature{border:1px solid var(--line);border-radius:var(--radius);padding:9px;background:var(--paper)}.news-feature img{height:176px;width:100%;object-fit:cover;border-radius:9px}.news-feature div{padding:16px 10px 9px}.news-feature h3{font-size:18px;line-height:1.4;margin:8px 0}.news-feature p{font-size:13px;color:var(--muted);margin:0}
.assurance{display:grid;grid-template-columns:5fr 7fr;gap:45px;align-items:center}.assurance p{color:#5c6860;margin:18px 0}.layer-map{border:1px solid var(--line);border-radius:var(--radius);padding:19px;background:var(--paper)}.layer{margin:8px 0;padding:12px 14px;border-left:4px solid var(--cyan);background:#f0f4ef;font-size:13px;font-weight:700;display:flex;justify-content:space-between}.layer:nth-child(2){margin-left:20px;border-color:var(--lime)}.layer:nth-child(3){margin-left:40px;border-color:#5d6961}.layer span{font-size:11px;color:var(--muted);font-weight:600}
.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.quick{background:var(--paper);border:1px solid var(--line);padding:25px;border-radius:var(--radius)}.quick h3{font-size:17px;margin-bottom:10px;line-height:1.4}.quick p{color:var(--muted);font-size:14px;margin:0}.quick h3:before{content:"Q";font-size:12px;color:var(--ink);background:var(--lime);border-radius:4px;padding:3px 6px;margin-right:8px}
.faq-wrap{max-width:950px;margin:auto}.accordion{background:transparent}.accordion-item{border:1px solid var(--line);margin-bottom:10px;border-radius:10px;overflow:hidden;background:var(--paper)}.accordion-title{background:var(--paper);border:0;color:var(--ink);font-weight:800;font-size:16px;padding:18px 52px 18px 20px;line-height:1.45}.accordion-title:hover,.accordion-title:focus{background:#f1f7ed;color:var(--ink)}.accordion-title:before{color:#138e89;font-size:21px;right:20px}.accordion-content{border:0;background:#f8faf6;color:#556159;font-size:14px;padding:0 20px 20px;line-height:1.75}
.cta-section{padding:85px 0;background:#151916}.cta-panel{border:1px solid rgba(201,243,91,.4);background:linear-gradient(115deg,#20261f,#151916);border-radius:var(--radius-lg);padding:43px;color:white}.cta-panel p{color:#cdd4ce;max-width:700px;margin:16px 0 25px}.lead-form label{font-size:13px;color:#dce4dd;font-weight:700}.lead-form input,.lead-form select,.lead-form textarea{margin:7px 0 15px;background:#f8faf7;border:1px solid transparent;border-radius:7px;box-shadow:none;color:var(--ink);min-height:45px}.lead-form textarea{min-height:96px;resize:vertical}.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(36,201,196,.18)}.form-note{font-size:12px;color:#aeb9b0;margin:10px 0 0}.form-result{display:none;margin-top:12px;padding:10px;border-radius:6px;background:#dff9d6;color:#24421d;font-size:14px;font-weight:700}
.footer{background:#111410;color:#d4ddd4;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:28px;padding-bottom:38px;border-bottom:1px solid var(--darkline)}.footer .brand{color:var(--lime);margin-bottom:13px}.footer p{font-size:13px;color:#aeb8af;max-width:310px}.footer h3{font-size:14px;color:#fff;margin:5px 0 13px}.footer a{display:block;color:#aeb8af;font-size:13px;padding:3px 0}.footer a:hover{color:var(--lime)}.footer-bottom{padding-top:18px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;color:#849087}.footer-bottom a{display:inline;padding:0;margin-left:15px}
@media(max-width:1024px){.desktop-nav{gap:15px}.desktop-nav a{font-size:13px}.matrix{grid-template-columns:1fr 1fr}.service-card.large{grid-row:span 1;grid-column:span 2}.milestone-track{overflow-x:auto;padding-bottom:10px}.milestone-track:before{display:none}.mile{min-width:185px}.case-copy{padding:34px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:span 3}}
@media(max-width:768px){.topline .grid-container{justify-content:center}.top-contact{display:none}.header .grid-container{height:68px}.desktop-nav,.header .nav-cta{display:none}.menu-toggle{display:block}.hero{min-height:635px}.hero-content{padding-top:70px}.hero p{font-size:15px}.metric-board{grid-template-columns:1fr 1fr;margin-top:33px}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.13)}.section{padding:73px 0}.intro-block{padding:25px}.intro-image{min-height:255px;margin-top:20px}.section-head{display:block}.section-head h2{margin-bottom:13px}.matrix{grid-template-columns:1fr 1fr;grid-template-rows:auto}.service-card{min-height:175px}.products-grid{grid-template-columns:1fr}.product-main{min-height:340px;grid-row:auto}.case-visual{min-height:300px}.case-copy{padding:29px}.assurance,.news-layout{grid-template-columns:1fr;gap:28px}.testimonials{grid-template-columns:1fr 1fr}.quote:nth-child(2){margin-top:20px}.quote:nth-child(3){grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}}
@media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.tech-ticks{justify-content:center;gap:10px;font-size:10px}.tech-ticks span:nth-child(3){display:none}.brand{font-size:18px}.hero{min-height:670px;background-position:60% center}.hero-content{padding-bottom:28px}.hero h1{font-size:35px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions a{width:100%}.play-control{width:54px;height:54px;right:13px;top:24px;font-size:17px}.metric{padding:15px}.metric b{font-size:22px}.section{padding:58px 0}.section-tight{padding:52px 0}.section-head h2,.intro-copy h2,.case-copy h2,.cta-panel h2{font-size:28px}.matrix{grid-template-columns:1fr}.service-card.large{grid-column:auto}.compare-row{grid-template-columns:1fr 1fr}.compare-row>div{padding:13px 12px;font-size:12px}.compare-row>div:first-child{grid-column:span 2;border-bottom:1px solid var(--line)}.compare-top .compare-label{padding:13px}.milestone-track{margin-right:-18px}.stats-band .grid-container{display:flex;overflow-x:auto;padding-bottom:4px}.stat{min-width:155px}.stat b{font-size:34px}.testimonials{grid-template-columns:1fr}.quote:nth-child(2),.quote:nth-child(3){margin-top:0;grid-column:auto}.story{min-width:290px}.news-item{grid-template-columns:1fr auto;gap:5px 10px}.news-date{grid-column:span 2}.news-item p{display:none}.cta-panel{padding:26px 20px}.footer-grid{grid-template-columns:1fr;gap:18px}.footer-bottom{display:block}.footer-bottom div{margin-top:8px}.footer-bottom a{margin-left:0;margin-right:13px}.accordion-title{font-size:15px;padding-left:16px}.accordion-content{padding-left:16px;padding-right:16px}}

/* roulang page: category2 */
:root{
--ink:#171a18;--graphite:#202420;--lime:#c9f35b;--lime-hi:#dcff7e;--cyan:#24c9c4;
--warm:#f6f5f0;--paper:#fffefa;--mist:#e8ebe5;--silver:#b8c0bb;--muted:#66706a;
--line:rgba(28,35,30,.14);--darkline:rgba(255,255,255,.16);--radius:14px;--radius-lg:22px;
--shadow:0 14px 35px rgba(29,38,31,.09);--container:1240px
}
*{box-sizing:border-box} html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease}
img{max-width:100%;display:block} button,input,select,textarea{font:inherit} button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.grid-container{max-width:var(--container)}
.topline{background:var(--ink);color:#dce2dc;font-size:12px}
.topline .grid-container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.tech-ticks,.top-contact{display:flex;align-items:center;gap:18px}.tech-ticks span{position:relative}.tech-ticks span:not(:last-child):after{content:"";width:3px;height:3px;border-radius:50%;background:var(--lime);position:absolute;right:-11px;top:9px}
.top-contact a{color:#dce2dc}.top-contact a:hover{color:var(--lime)}
.header{position:relative;z-index:20;background:rgba(255,254,250,.97);border-bottom:1px solid var(--line)}
.header .grid-container{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;display:flex;align-items:center;white-space:nowrap}
.brand-mark{width:26px;height:26px;margin-right:9px;background:var(--lime);border-radius:7px;position:relative;flex:0 0 auto}
.brand-mark:after{content:"";position:absolute;width:12px;height:12px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(45deg);left:5px;top:4px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px;flex:1}.desktop-nav a{height:80px;display:inline-flex;align-items:center;border-bottom:3px solid transparent;font-size:14px;font-weight:650;color:#3c4740}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink);border-color:var(--lime)}
.nav-cta,.button-main{background:var(--lime);color:var(--ink)!important;font-weight:800;border:1px solid var(--lime);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;letter-spacing:.01em}
.nav-cta{min-height:42px;font-size:14px}.nav-cta:hover,.button-main:hover{background:var(--lime-hi);transform:translateY(-2px);box-shadow:0 8px 20px rgba(177,226,57,.25)}
.button-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid rgba(255,255,255,.62);color:#fff;border-radius:8px;font-weight:700}
.button-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--ink);color:white;border:0;border-radius:8px;width:46px;height:46px;font-size:22px}
.off-canvas{background:var(--ink);padding:26px}.off-canvas .brand{color:var(--lime);margin-bottom:22px}.mobile-links a{display:block;color:#fff;border-bottom:1px solid var(--darkline);padding:15px 2px;font-weight:700}.mobile-links a:hover,.mobile-links a.active{color:var(--lime)}
.section{padding:92px 0}.section-dark{background:var(--graphite);color:#fff}.section-mist{background:var(--mist)}
.crumb{padding:18px 0 0;color:var(--muted);font-size:13px}.crumb a:hover{color:#087d79}
.page-hero{padding:62px 0 76px;position:relative;overflow:hidden;background:var(--paper)}
.page-hero:after{content:"";position:absolute;width:46vw;height:46vw;max-width:620px;max-height:620px;border:1px solid rgba(36,201,196,.25);border-radius:50%;right:-12vw;top:-19vw;background:radial-gradient(circle,rgba(201,243,91,.25),transparent 62%)}
.hero-grid{position:relative;z-index:1;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(36,201,196,.45);border-radius:999px;color:#087d79;font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.page-hero h1{font-size:clamp(35px,5vw,62px);line-height:1.13;letter-spacing:-.06em;font-weight:800;margin:17px 0 20px;max-width:760px}
.page-hero p{max-width:690px;color:#4e5a52;font-size:17px;margin:0}.hero-params{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-params:before{content:"";position:absolute;width:140px;height:140px;border-radius:50%;background:rgba(201,243,91,.15);right:-42px;top:-40px}.hero-params h2{font-size:16px;margin:0 0 15px;color:var(--lime);position:relative}.param-line{position:relative;display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-top:1px solid var(--darkline);font-size:14px}.param-line span:last-child{font-weight:800;color:#edf5e7;text-align:right}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:36px}.section-no{font-size:12px;font-weight:800;color:#728078;letter-spacing:.1em;margin-bottom:10px}
.section-head h2,.section-intro h2,.cta-panel h2{font-size:clamp(27px,3.2vw,43px);line-height:1.2;letter-spacing:-.045em;font-weight:800;margin:0}.section-head p{max-width:470px;color:var(--muted);font-size:15px;margin:0}
.scope-layout{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}.section-intro p{color:var(--muted);margin:18px 0 0}.scope-list{border-left:1px solid var(--line)}.scope-item{padding:0 0 22px 27px;position:relative}.scope-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--lime);left:-6px;top:8px;box-shadow:0 0 0 5px var(--warm)}.scope-item h3{font-size:18px;margin:0 0 4px;font-weight:800}.scope-item p{margin:0;color:var(--muted);font-size:14px}
.tag{display:inline-flex;border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#46524b;background:#fbfcf8;margin:0 5px 7px 0}.tag.cyan{color:#087d79;border-color:rgba(36,201,196,.38);background:#ebfbfa}
.cockpit-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.cockpit-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;min-height:267px;display:flex;flex-direction:column}.cockpit-card.featured{grid-row:span 2;min-height:552px;background:var(--ink);color:white}.cockpit-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(36,201,196,.55)}.card-image{height:170px;overflow:hidden}.featured .card-image{height:292px}.card-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.cockpit-card:hover img{transform:scale(1.045)}.card-body{padding:20px 21px 21px;display:flex;flex:1;flex-direction:column}.card-body h3{font-size:20px;line-height:1.3;margin:0 0 8px;font-weight:800}.card-body p{font-size:14px;color:var(--muted);margin:0 0 14px}.featured .card-body p{color:#c7d1c8}.card-meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;font-weight:800;color:#087d79}.featured .card-meta{color:var(--lime)}.more-line{text-align:center;margin-top:28px}.more-line a{font-weight:800;border-bottom:2px solid var(--lime);padding-bottom:4px}.more-line a:hover{color:#087d79}
.matrix{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}.matrix-row{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;border-bottom:1px solid var(--line)}.matrix-row:last-child{border-bottom:0}.matrix-row>div{padding:16px 20px;font-size:14px;border-right:1px solid var(--line)}.matrix-row>div:last-child{border-right:0}.matrix-row.head{background:var(--ink);color:#fff;font-size:12px;font-weight:800}.matrix-row strong{font-weight:800}.state{font-size:12px;font-weight:800;color:#087d79}.state:before{content:"✓ ";color:#20aaa6}
.flow-wrap{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:center}.flow-image{border-radius:var(--radius-lg);overflow:hidden;min-height:390px}.flow-image img{width:100%;height:390px;object-fit:cover}.step-list{counter-reset:step}.step{counter-increment:step;position:relative;padding:0 0 23px 65px}.step:before{content:"0" counter(step);position:absolute;left:0;top:0;font-size:27px;line-height:1;font-weight:800;color:var(--cyan)}.step:not(:last-child):after{content:"";position:absolute;left:14px;top:34px;bottom:5px;width:1px;background:rgba(36,201,196,.45)}.step h3{font-size:18px;margin:0 0 4px;font-weight:800}.step p{margin:0;color:var(--muted);font-size:14px}
.verify-panel{background:var(--ink);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:36px}.verify-panel h2{color:white;font-size:clamp(27px,3vw,40px);line-height:1.2;margin:0 0 25px;letter-spacing:-.04em}.verify-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--darkline);border:1px solid var(--darkline)}.verify-cell{background:#252b26;padding:24px}.verify-cell b{color:var(--lime);font-size:29px;display:block;line-height:1.1;margin-bottom:9px}.verify-cell span{color:#d4ddd5;font-size:13px;line-height:1.55;display:block}
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:45px}.faq-copy p{color:var(--muted);margin-top:18px}.accordion{background:transparent}.accordion-item{border:1px solid var(--line);margin-bottom:10px;border-radius:10px;overflow:hidden;background:var(--paper)}.accordion-title{border:0;background:transparent;color:var(--ink);font-weight:800;font-size:16px;padding:18px 52px 18px 20px;line-height:1.5}.accordion-title:hover,.accordion-title:focus{background:#f1f7e5;color:var(--ink)}.accordion-title:before{color:#087d79;font-size:22px;right:20px;margin-top:-15px}.accordion-content{border:0;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
.cta-panel{background:var(--graphite);border-radius:var(--radius-lg);padding:48px;position:relative;overflow:hidden;color:#fff}.cta-panel:after{content:"";position:absolute;right:-100px;bottom:-130px;width:390px;height:390px;border:1px solid rgba(201,243,91,.42);border-radius:50%;box-shadow:0 0 0 38px rgba(36,201,196,.07)}.cta-panel>*{position:relative;z-index:1}.cta-panel h2{max-width:650px}.cta-panel p{color:#cad3cb;max-width:670px;margin:15px 0 25px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:900px}.form-grid .full{grid-column:1/-1}label{display:block;color:#eaf0e9;font-weight:700;font-size:13px;margin-bottom:5px}label em{color:var(--lime);font-style:normal}input,select,textarea{width:100%;background:#fffefa;border:1px solid transparent;border-radius:8px;padding:11px 13px;color:var(--ink);min-height:46px}textarea{min-height:92px;resize:vertical}.form-note{font-size:12px;color:#b9c4ba;margin:13px 0 0}.form-error{display:none;color:#ffcfb8;font-size:12px;margin-top:4px}.form-grid input:invalid:not(:placeholder-shown)+.form-error{display:block}
.footer{background:#151815;color:#cbd3cc;padding:62px 0 22px;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.1fr;gap:35px}.footer .brand{color:#fff;margin-bottom:14px}.footer p{font-size:13px;line-height:1.8;margin:0;color:#aeb9b0}.footer h3{font-size:14px;color:var(--lime);margin:3px 0 13px}.footer-grid a:not(.brand){display:block;font-size:13px;margin:7px 0;color:#cbd3cc}.footer-grid a:not(.brand):hover{color:var(--lime)}.footer-bottom{border-top:1px solid var(--darkline);margin-top:40px;padding-top:19px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#94a096}.footer-bottom div{display:flex;gap:17px}.footer-bottom a:hover{color:var(--lime)}
@media(max-width:992px){.desktop-nav{gap:15px}.header .grid-container{gap:14px}.nav-cta{padding:0 13px}.scope-layout,.faq-grid,.flow-wrap{grid-template-columns:1fr}.page-hero{padding:50px 0 62px}.hero-params{margin-top:30px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.top-contact{display:none}.topline .grid-container{justify-content:center}.desktop-nav,.nav-cta{display:none}.menu-toggle{display:block}.header .grid-container{height:70px}.page-hero h1{font-size:38px}.section{padding:67px 0}.section-head{display:block;margin-bottom:26px}.section-head p{margin-top:13px}.cockpit-grid{grid-template-columns:1fr}.cockpit-card.featured{grid-row:auto;min-height:0}.featured .card-image{height:215px}.matrix{overflow-x:auto}.matrix-row{min-width:700px}.verify-grid{grid-template-columns:1fr}.cta-panel{padding:31px 22px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}}
@media(max-width:520px){body{font-size:15px}.grid-container{padding-left:18px;padding-right:18px}.topline .grid-container{padding-left:10px;padding-right:10px}.tech-ticks{gap:14px;font-size:11px}.tech-ticks span:not(:last-child):after{right:-9px}.brand{font-size:18px}.brand-mark{width:23px;height:23px}.header .grid-container{height:66px}.page-hero{padding:41px 0 52px}.page-hero h1{font-size:33px}.page-hero p{font-size:15px}.hero-params{padding:22px}.section{padding:56px 0}.section-head h2,.section-intro h2,.cta-panel h2{font-size:28px}.card-image{height:155px}.card-body{padding:17px}.verify-panel{padding:24px 18px}.verify-cell{padding:19px}.footer{padding-top:48px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom div{margin-top:10px}.crumb{font-size:12px}}

/* roulang page: category1 */
:root{
--ink:#171a18;--graphite:#202420;--lime:#c9f35b;--lime-hi:#dcff7e;--cyan:#24c9c4;
--warm:#f6f5f0;--paper:#fffefa;--mist:#e8ebe5;--silver:#b8c0bb;--muted:#66706a;
--line:rgba(28,35,30,.14);--darkline:rgba(255,255,255,.16);--radius:14px;--radius-lg:22px;
--shadow:0 14px 35px rgba(29,38,31,.09);--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
.topline{background:var(--graphite);color:#dce2dc;font-size:12px}
.topline .grid-container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.tech-ticks,.top-contact{display:flex;align-items:center;gap:15px}
.tech-ticks span{position:relative;padding-left:11px}
.tech-ticks span:before{content:"";position:absolute;width:5px;height:5px;border-radius:50%;background:var(--lime);left:0;top:50%;transform:translateY(-50%)}
.top-contact a{color:#dce2dc}.top-contact a:hover{color:var(--lime)}
.header{position:relative;z-index:30;background:rgba(255,254,250,.97);border-bottom:1px solid var(--line)}
.header .grid-container{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;display:flex;align-items:center;white-space:nowrap}
.brand-mark{width:26px;height:26px;margin-right:9px;background:var(--lime);border-radius:7px;position:relative;flex:none}
.brand-mark:after{content:"";position:absolute;width:12px;height:12px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(45deg);left:5px;top:4px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px;flex:1}
.desktop-nav a{height:80px;display:inline-flex;align-items:center;border-bottom:3px solid transparent;font-size:14px;font-weight:650;color:#3c4740}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink);border-color:var(--lime)}
.nav-cta,.button-main{background:var(--lime);color:var(--ink)!important;font-weight:800;border:1px solid var(--lime);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;letter-spacing:.01em}
.nav-cta{min-height:42px;font-size:14px}.nav-cta:hover,.button-main:hover{background:var(--lime-hi);transform:translateY(-2px);box-shadow:0 8px 20px rgba(177,226,57,.25)}
.button-dark{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid var(--ink);color:var(--ink);border-radius:8px;font-weight:800;background:transparent}
.button-dark:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--ink);color:#fff;border:0;border-radius:8px;width:46px;height:46px;font-size:22px}
.off-canvas{background:var(--graphite);padding:25px}.off-canvas .brand{color:var(--lime);margin-bottom:22px}.mobile-links a{display:block;color:#fff;border-bottom:1px solid var(--darkline);padding:15px 2px;font-weight:700}.mobile-links a:hover{color:var(--lime)}
.page-hero{background:var(--paper);border-bottom:1px solid var(--line);position:relative;overflow:hidden;padding:76px 0 66px}
.page-hero:after{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(36,201,196,.24);border-radius:50%;right:-145px;top:-230px;box-shadow:inset 0 0 0 42px rgba(201,243,91,.1)}
.breadcrumb{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:24px}.breadcrumb span{color:#9ba49f;margin:0 8px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(36,201,196,.45);border-radius:999px;color:#087d79;font-size:12px;font-weight:800;letter-spacing:.08em;background:#effcfa}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.page-hero h1{font-size:clamp(34px,5vw,60px);line-height:1.15;letter-spacing:-.055em;font-weight:800;margin:16px 0 19px;max-width:760px}
.page-hero p{max-width:720px;color:#526058;margin:0;font-size:17px}
.parameter-panel{position:relative;z-index:1;background:var(--graphite);color:#fff;border-radius:var(--radius-lg);padding:27px;border:1px solid rgba(201,243,91,.25);box-shadow:var(--shadow)}
.parameter-panel h2{font-size:16px;margin:0 0 14px;color:var(--lime);font-weight:800}.parameter-panel dl{margin:0}.parameter-panel dl div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--darkline);font-size:13px}.parameter-panel dt{color:#aeb9b0}.parameter-panel dd{margin:0;font-weight:800;text-align:right}
.section{padding:92px 0}.section-alt{background:var(--paper)}.section-dark{background:var(--graphite);color:#fff}
.section-no{font-size:12px;font-weight:800;color:#748079;letter-spacing:.1em;margin-bottom:9px}.section-dark .section-no{color:var(--lime)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-head h2,.intro-copy h2,.process-copy h2,.contact-copy h2{font-size:clamp(27px,3.3vw,43px);line-height:1.2;letter-spacing:-.045em;font-weight:800;margin:0}.section-head p{max-width:490px;color:var(--muted);font-size:15px;margin:0}.section-dark .section-head p{color:#c8d0c9}
.tag{display:inline-flex;border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:12px;line-height:1.3;font-weight:700;color:#46524b;background:#fbfcf8}.tag.cyan{color:#087d79;border-color:rgba(36,201,196,.4);background:#ebfbfa}.tag.dark{color:var(--lime);background:#293029;border-color:rgba(201,243,91,.25)}
.intro-copy p{color:var(--muted);margin:18px 0 22px}.evidence-row{display:flex;gap:9px;flex-wrap:wrap}.intro-image{height:100%;min-height:370px;border-radius:var(--radius-lg);overflow:hidden;position:relative}.intro-image img{width:100%;height:100%;object-fit:cover}.image-note{position:absolute;right:15px;bottom:15px;padding:8px 12px;background:rgba(23,26,24,.88);color:#fff;font-size:12px;border-radius:8px}
.scope-list{border-top:1px solid var(--line);margin-top:28px}.scope-list div{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}.scope-list b{color:#0d817d;font-size:12px;min-width:44px}.scope-list span{font-size:14px;font-weight:650}
.solution-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}.solution-card{min-height:255px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:25px;position:relative;overflow:hidden;display:flex;flex-direction:column}.solution-card.featured{grid-row:span 2;background:var(--ink);color:#fff;min-height:526px}.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(36,201,196,.55)}.solution-card .num{font-size:13px;font-weight:800;color:var(--cyan);letter-spacing:.1em}.solution-card.featured .num{color:var(--lime)}.solution-card h3{font-size:21px;line-height:1.3;margin:42px 0 10px;font-weight:800}.solution-card p{font-size:14px;color:var(--muted);margin:0}.solution-card.featured p{color:#cad3cb;font-size:15px}.solution-card .tags{margin-top:auto;padding-top:22px;display:flex;gap:7px;flex-wrap:wrap}.solution-card.featured:after{content:"01";font-size:120px;line-height:1;position:absolute;right:-7px;bottom:-17px;color:rgba(201,243,91,.1);font-weight:800}
.more-line{margin-top:28px;border-top:1px solid var(--line);padding-top:21px;text-align:right}.more-line a{font-size:14px;font-weight:800;color:#087d79}.more-line a:hover{color:var(--ink);transform:translateX(3px)}
.matrix{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--paper)}.matrix-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;border-bottom:1px solid var(--line)}.matrix-row:last-child{border-bottom:0}.matrix-row>*{padding:16px 18px;font-size:14px;border-right:1px solid var(--line)}.matrix-row>*:last-child{border-right:0}.matrix-head{background:var(--mist);font-size:12px;font-weight:800;color:#526058}.matrix-row strong{font-size:14px}.check{color:#087d79;font-weight:800}.status{font-size:12px;font-weight:800;color:#526058}
.process-panel{background:#eaf0e9;border-radius:var(--radius-lg);padding:31px}.process-copy p{color:var(--muted);margin:16px 0 0}.steps{margin-top:24px}.step{display:grid;grid-template-columns:48px 1fr;gap:14px;position:relative;padding-bottom:20px}.step:last-child{padding-bottom:0}.step:not(:last-child):before{content:"";position:absolute;left:22px;top:45px;bottom:0;width:1px;background:var(--cyan)}.step-index{width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:800;font-size:13px}.step h3{font-size:17px;margin:3px 0 3px}.step p{font-size:14px;color:var(--muted);margin:0}
.case-panel{background:#252b26;border:1px solid var(--darkline);border-radius:var(--radius-lg);overflow:hidden}.case-image{height:100%;min-height:410px}.case-image img{height:100%;width:100%;object-fit:cover}.case-copy{padding:42px}.case-copy h2{color:#fff}.case-copy p{color:#c7d0c8;margin:18px 0 27px}.case-data{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--darkline);margin-top:26px}.case-data div{background:#252b26;padding:18px}.case-data strong{display:block;color:var(--lime);font-size:25px;line-height:1.1}.case-data span{color:#b6c1b7;font-size:12px}
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.proof-card{background:var(--paper);border:1px solid var(--line);padding:25px;border-radius:var(--radius)}.proof-card h3{font-size:18px;margin:0 0 9px}.proof-card p{font-size:14px;color:var(--muted);margin:0}.proof-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:9px;background:#eaf9f3;color:#087d79;font-size:20px;font-weight:800;margin-bottom:20px}
.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line);border-radius:10px;background:var(--paper);margin-bottom:10px;overflow:hidden}.accordion-title{color:var(--ink);font-weight:800;font-size:16px;padding:19px 48px 19px 20px;border:0}.accordion-title:hover,.accordion-title:focus{background:#f2f7e9;color:var(--ink)}.accordion-title:before{color:#087d79;font-size:22px;right:20px}.accordion-content{border:0;padding:0 20px 20px;color:var(--muted);font-size:14px;background:var(--paper)}
.contact-band{background:var(--ink);color:#fff;position:relative;overflow:hidden}.contact-band:after{content:"";position:absolute;width:390px;height:390px;border-radius:50%;border:1px solid rgba(201,243,91,.28);right:-115px;bottom:-225px}.contact-copy{position:relative;z-index:1}.contact-copy h2{color:#fff}.contact-copy p{color:#c8d0c9;max-width:540px;margin:16px 0 0}.contact-form{position:relative;z-index:1;background:#f8f9f4;border-radius:var(--radius-lg);padding:25px;color:var(--ink)}.contact-form label{font-size:13px;font-weight:800;margin-bottom:6px}.contact-form input,.contact-form select,.contact-form textarea{border:1px solid #cbd3cc;border-radius:7px;box-shadow:none;background:#fff;width:100%;min-height:44px;margin:0 0 15px;padding:9px 11px;color:var(--ink)}.contact-form textarea{min-height:90px;resize:vertical}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(36,201,196,.14)}.required{color:#c7443d}.form-note{font-size:12px;color:var(--muted);margin:9px 0 0}
.footer{background:#171a18;color:#d2dbd3;padding:64px 0 20px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:35px}.footer .brand{color:#fff;margin-bottom:13px}.footer p{font-size:14px;color:#aab5ad;max-width:280px;margin:0}.footer h3{font-size:14px;color:var(--lime);margin:2px 0 12px}.footer-grid>div>a{display:block;font-size:13px;color:#cbd3cd;margin:8px 0}.footer-grid>div>a:hover{color:var(--lime);transform:translateX(3px)}.footer-bottom{border-top:1px solid var(--darkline);margin-top:43px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#9fa99f}.footer-bottom div{display:flex;gap:18px}.footer-bottom a:hover{color:var(--lime)}
@media(max-width:1024px){.desktop-nav{gap:15px}.desktop-nav a{font-size:13px}.solution-grid{grid-template-columns:1fr 1fr}.solution-card.featured{grid-row:span 1;min-height:300px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.top-contact{display:none}.topline .grid-container{justify-content:center}.header .grid-container{height:70px}.desktop-nav,.nav-cta{display:none}.menu-toggle{display:block}.page-hero{padding:54px 0}.page-hero .cell:last-child{margin-top:28px}.section{padding:66px 0}.section-head{display:block}.section-head p{margin-top:13px}.intro-image{min-height:280px;margin-top:28px}.matrix{overflow:auto}.matrix-row{min-width:680px}.case-image{min-height:280px}.case-copy{padding:29px}.contact-form{margin-top:29px}.footer-grid{gap:27px}}
@media(max-width:640px){.grid-container{padding-left:18px;padding-right:18px}.page-hero h1{font-size:36px}.page-hero p{font-size:15px}.parameter-panel{padding:21px}.solution-grid{grid-template-columns:1fr}.solution-card,.solution-card.featured{min-height:245px}.proof-grid{grid-template-columns:1fr}.case-data{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom div{margin-top:9px}.section-head h2,.intro-copy h2,.process-copy h2,.contact-copy h2{font-size:29px}.topline{font-size:11px}.tech-ticks{gap:10px}.accordion-title{font-size:15px;padding-left:16px}.accordion-content{padding-left:16px}.contact-form{padding:19px}}
@media(max-width:375px){.brand{font-size:18px}.brand-mark{width:23px;height:23px;margin-right:7px}.page-hero h1{font-size:32px}.case-copy{padding:23px}.case-data div{padding:14px}.button-main,.button-dark{width:100%}}

/* roulang page: category4 */
:root{
--ink:#171a18;--graphite:#202420;--lime:#c9f35b;--lime-hi:#dcff7e;--cyan:#24c9c4;
--warm:#f6f5f0;--paper:#fffefa;--mist:#e8ebe5;--silver:#b8c0bb;--muted:#66706a;
--line:rgba(28,35,30,.14);--darkline:rgba(255,255,255,.16);--radius:14px;--radius-lg:22px;
--shadow:0 14px 35px rgba(29,38,31,.09);--container:1240px
}
*{box-sizing:border-box} html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease}
img{max-width:100%;display:block} button,input,select,textarea{font:inherit} button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px}
.topline{background:var(--ink);color:#dce2dc;font-size:12px}
.topline .grid-container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.tech-ticks,.top-contact{display:flex;align-items:center;gap:16px}.tech-ticks span{position:relative}.tech-ticks span:not(:last-child):after{content:"";position:absolute;right:-9px;top:50%;width:3px;height:3px;border-radius:50%;background:var(--lime)}
.top-contact a{color:#dce2dc}.top-contact a:hover{color:var(--lime)}
.header{position:relative;z-index:20;background:rgba(255,254,250,.97);border-bottom:1px solid var(--line)}
.header .grid-container{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;display:flex;align-items:center;white-space:nowrap}
.brand-mark{width:26px;height:26px;margin-right:9px;background:var(--lime);border-radius:7px;position:relative;flex:0 0 auto}
.brand-mark:after{content:"";position:absolute;width:12px;height:12px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(45deg);left:5px;top:4px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px;flex:1}
.desktop-nav a{height:80px;display:inline-flex;align-items:center;border-bottom:3px solid transparent;font-size:14px;font-weight:650;color:#3c4740}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink);border-color:var(--lime)}
.nav-cta,.button-main{background:var(--lime);color:var(--ink)!important;font-weight:800;border:1px solid var(--lime);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;letter-spacing:.01em}
.nav-cta{min-height:42px;font-size:14px}.nav-cta:hover,.button-main:hover{background:var(--lime-hi);transform:translateY(-2px);box-shadow:0 8px 20px rgba(177,226,57,.25)}
.button-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid rgba(255,255,255,.6);color:#fff;border-radius:8px;font-weight:700}
.button-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--ink);color:#fff;border:0;border-radius:8px;width:46px;height:46px;font-size:22px}
.off-canvas{background:var(--ink);padding:28px}.off-canvas .brand{color:var(--lime);margin-bottom:22px}.mobile-links a{display:block;color:#fff;border-bottom:1px solid var(--darkline);padding:15px 2px;font-weight:700}.mobile-links a:hover{color:var(--lime)}
.breadcrumb{font-size:13px;color:var(--muted);padding:20px 0 0}.breadcrumb span{color:#9aa39d;padding:0 7px}
.category-hero{padding:64px 0 76px;background:linear-gradient(118deg,#eef0e9 0%,#f7f6f1 57%,#dff1e7 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.category-hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(36,201,196,.28);border-radius:50%;right:-110px;top:-160px;box-shadow:0 0 0 28px rgba(201,243,91,.12),0 0 0 57px rgba(36,201,196,.06)}
.category-copy{position:relative;z-index:1}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(28,35,30,.2);border-radius:999px;color:#496050;font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 12px rgba(135,180,31,.7)}
.category-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.15;letter-spacing:-.06em;margin:16px 0 18px;font-weight:800;max-width:720px}
.category-hero p{margin:0;max-width:700px;color:#4f5c54;font-size:17px}
.hero-specs{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
.hero-spec{background:rgba(255,254,250,.8);border:1px solid var(--line);border-radius:12px;padding:15px 16px;min-height:106px}
.hero-spec strong{display:block;font-size:20px;line-height:1.2;margin-bottom:5px}.hero-spec span{font-size:12px;color:var(--muted)}
.section{padding:92px 0}.section-dark{background:var(--graphite);color:#fff}.section-mist{background:var(--mist)}
.section-no{font-size:12px;line-height:1;color:#718078;font-weight:800;letter-spacing:.11em;margin-bottom:12px}.section-dark .section-no{color:var(--lime)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}.section-head h2,.cta-copy h2{font-size:clamp(27px,3.3vw,42px);line-height:1.22;letter-spacing:-.05em;margin:0;font-weight:800}.section-head p{margin:0;max-width:500px;color:var(--muted);font-size:15px}.section-dark .section-head p{color:#c9d1ca}
.scope-list{border-top:1px solid var(--line)}.scope-row{display:grid;grid-template-columns:75px 1.05fr 1.4fr;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.scope-num{font-size:13px;font-weight:800;color:#0c8a86}.scope-row h3{font-size:18px;margin:0;font-weight:800}.scope-row p{font-size:14px;color:var(--muted);margin:0}
.tag{display:inline-flex;border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#46524b;background:#fbfcf8;margin:0 6px 6px 0}.tag.cyan{color:#087d79;border-color:rgba(36,201,196,.38);background:#ebfbfa}.tag.dark{border-color:rgba(255,255,255,.22);background:transparent;color:#dbe3dc}
.audit-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.audit-main{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}.audit-image{height:230px;position:relative}.audit-image img{width:100%;height:100%;object-fit:cover}.audit-image:after{content:"版本校验 · 记录可追溯";position:absolute;bottom:14px;left:16px;background:var(--ink);color:var(--lime);font-size:12px;font-weight:800;padding:7px 10px;border-radius:6px}.audit-body{padding:26px}.audit-body h3{font-size:25px;line-height:1.25;margin:0 0 9px;font-weight:800}.audit-body p{color:var(--muted);font-size:14px;margin:0 0 14px}
.audit-side{display:grid;gap:18px}.check-card{background:#252a26;border:1px solid rgba(255,255,255,.13);color:#fff;border-radius:var(--radius);padding:24px;position:relative;overflow:hidden}.check-card:nth-child(2){background:#e8fbf4;color:var(--ink);border-color:rgba(36,201,196,.28)}.check-card:before{content:"✓";position:absolute;right:18px;top:10px;font-size:58px;line-height:1;color:rgba(201,243,91,.18);font-weight:800}.check-card:nth-child(2):before{color:rgba(36,201,196,.16)}.check-card h3{font-size:18px;margin:0 0 8px;position:relative}.check-card p{font-size:13px;margin:0;color:#cbd5cd;position:relative}.check-card:nth-child(2) p{color:#4c655e}
.more-link{display:inline-flex;margin-top:18px;font-weight:800;font-size:14px;color:#087d79;border-bottom:1px solid currentColor}.more-link:hover{color:var(--ink);transform:translateX(3px)}
.matrix-wrap{border:1px solid var(--darkline);border-radius:var(--radius-lg);overflow:hidden}.matrix-row{display:grid;grid-template-columns:1.3fr repeat(3,1fr);border-bottom:1px solid var(--darkline)}.matrix-row:last-child{border-bottom:0}.matrix-row>div{padding:17px 18px;border-right:1px solid var(--darkline);font-size:14px}.matrix-row>div:last-child{border-right:0}.matrix-row.head{background:rgba(255,255,255,.06);color:var(--lime);font-size:12px;font-weight:800}.matrix-row strong{font-size:15px}.status{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#d8e4dc}.status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan)}.status.lime:before{background:var(--lime)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.flow-step{padding:25px 22px 28px;border-right:1px solid var(--line);position:relative}.flow-step:last-child{border-right:0}.flow-step small{color:#0b8c88;font-weight:800}.flow-step h3{font-size:19px;line-height:1.3;margin:12px 0 8px;font-weight:800}.flow-step p{font-size:13px;color:var(--muted);margin:0}.flow-step:after{content:"→";position:absolute;right:-10px;top:39px;z-index:1;background:var(--warm);color:#0b8c88;font-size:18px}.flow-step:last-child:after{display:none}
.proof-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.proof-panel{border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;background:var(--paper)}.proof-panel h3{font-size:24px;line-height:1.25;margin:0 0 16px;font-weight:800}.proof-list{list-style:none;padding:0;margin:0}.proof-list li{padding:13px 0;border-top:1px solid var(--line);font-size:14px;display:flex;gap:12px}.proof-list li:before{content:"✓";color:#0a908b;font-weight:800}.proof-data{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:30px;display:flex;flex-direction:column;justify-content:space-between}.proof-data p{color:#c5d0c7;margin:0;font-size:14px}.metric-line{border-top:1px solid var(--darkline);padding:15px 0;display:flex;align-items:center;justify-content:space-between;gap:15px}.metric-line:first-of-type{margin-top:22px}.metric-line strong{font-size:27px;color:var(--lime);line-height:1}.metric-line span{font-size:13px;color:#d7dfd8;text-align:right}
.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line);border-bottom:0;background:var(--paper)}.accordion-item:first-child{border-radius:var(--radius) var(--radius) 0 0}.accordion-item:last-child{border-bottom:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius)}.accordion-title{color:var(--ink);font-size:16px;font-weight:800;padding:18px 52px 18px 20px;border:0}.accordion-title:hover,.accordion-title:focus{background:#f2f5ed;color:var(--ink)}.accordion-title:before{color:#087d79;font-size:22px;right:21px;margin-top:-14px}.accordion-content{border:0;border-top:1px solid var(--line);padding:0 20px 19px;color:var(--muted);font-size:14px;background:var(--paper)}
.cta-section{padding:80px 0;background:linear-gradient(120deg,#151a17,#2b332d)}.cta-panel{border:1px solid rgba(201,243,91,.32);border-radius:var(--radius-lg);padding:40px;background:rgba(255,255,255,.035);color:#fff}.cta-copy p{color:#c9d2cb;max-width:590px;margin:16px 0 0}.contact-form label{color:#dce5dd;font-size:13px;font-weight:700;margin-bottom:13px}.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;border-radius:7px;box-shadow:none;margin-top:6px;padding:11px 12px;min-height:45px}.contact-form select option{color:var(--ink)}.contact-form textarea{min-height:92px;resize:vertical}.contact-form input::placeholder,.contact-form textarea::placeholder{color:#b9c4bc}.form-note{color:#abb8ae;font-size:12px;margin:12px 0 0}.form-message{display:none;margin-top:12px;color:var(--lime);font-size:14px;font-weight:700}
.footer{background:#151815;color:#d1d9d1;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.12fr;gap:35px}.footer .brand{color:#fff;margin-bottom:15px}.footer p{font-size:13px;color:#aeb9b0;margin:0}.footer h3{font-size:14px;color:var(--lime);margin:3px 0 13px;font-weight:800}.footer-grid>div>a:not(.brand){display:block;font-size:13px;color:#cbd4cc;margin:7px 0}.footer-grid>div>a:hover{color:var(--lime);transform:translateX(2px)}.footer-bottom{border-top:1px solid var(--darkline);margin-top:40px;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:12px;color:#98a39a}.footer-bottom div{display:flex;gap:18px}.footer-bottom a:hover{color:var(--lime)}
@media(max-width:992px){.desktop-nav{gap:15px}.desktop-nav a{font-size:13px}.nav-cta{padding:0 13px}.audit-grid,.proof-grid{grid-template-columns:1fr}.flow-grid{grid-template-columns:repeat(2,1fr)}.flow-step:nth-child(2){border-right:0}.flow-step:nth-child(2):after{display:none}.flow-step:nth-child(-n+2){border-bottom:1px solid var(--line)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.topline .grid-container{min-height:38px}.tech-ticks{display:none}.top-contact{width:100%;justify-content:space-between;gap:8px}.header .grid-container{height:70px}.desktop-nav,.nav-cta{display:none}.menu-toggle{display:inline-grid;place-items:center;margin-left:auto}.category-hero{padding:45px 0 55px}.section{padding:66px 0}.section-head{display:block}.section-head p{margin-top:13px}.scope-row{grid-template-columns:46px 1fr;gap:10px}.scope-row p{grid-column:2}.matrix-row{grid-template-columns:1.1fr 1fr 1fr}.matrix-row>div:nth-child(4){display:none}.footer-grid{gap:28px}.cta-panel{padding:28px}}
@media(max-width:520px){body{font-size:15px}.grid-container{padding-left:18px;padding-right:18px}.top-contact a{font-size:11px}.brand{font-size:18px}.brand-mark{width:24px;height:24px}.category-hero h1{font-size:34px}.category-hero p{font-size:15px}.hero-specs{grid-template-columns:1fr 1fr}.hero-spec{padding:13px;min-height:95px}.hero-spec strong{font-size:17px}.section{padding:56px 0}.section-head h2,.cta-copy h2{font-size:28px}.audit-body,.proof-panel,.proof-data{padding:22px}.flow-grid{grid-template-columns:1fr}.flow-step,.flow-step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.flow-step:last-child{border-bottom:0}.flow-step:after{display:none}.matrix-wrap{overflow-x:auto}.matrix-row{min-width:620px}.footer-grid{grid-template-columns:1fr}.footer-bottom{align-items:flex-start;flex-direction:column}.footer-bottom div{gap:14px}.button-main{width:100%}.contact-form .cell{margin-bottom:0}}

/* roulang page: category3 */
:root{
 --ink:#171a18;--graphite:#202420;--lime:#c9f35b;--lime-hi:#dcff7e;--cyan:#24c9c4;
 --warm:#f6f5f0;--paper:#fffefa;--mist:#e8ebe5;--silver:#b8c0bb;--muted:#66706a;
 --line:rgba(28,35,30,.14);--darkline:rgba(255,255,255,.16);--radius:14px;--radius-lg:22px;
 --shadow:0 14px 35px rgba(29,38,31,.09);--container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease,border-color .22s ease,background .22s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
.grid-container{max-width:var(--container)}
.topline{background:var(--ink);color:#dce2dc;font-size:12px}
.topline .grid-container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.tech-ticks,.top-contact{display:flex;align-items:center;gap:20px}
.tech-ticks span{color:#aeb9b0}
.top-contact a:hover{color:var(--lime)}
.header{position:relative;z-index:20;background:rgba(255,254,250,.97);border-bottom:1px solid var(--line)}
.header .grid-container{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.04em;display:flex;align-items:center;white-space:nowrap}
.brand-mark{width:26px;height:26px;margin-right:9px;background:var(--lime);border-radius:7px;position:relative}
.brand-mark:after{content:"";position:absolute;width:12px;height:12px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(45deg);left:5px;top:4px}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:25px;flex:1}
.desktop-nav a{height:80px;display:inline-flex;align-items:center;border-bottom:3px solid transparent;font-size:14px;font-weight:650;color:#3c4740}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink);border-color:var(--lime)}
.nav-cta,.button-main{background:var(--lime);color:var(--ink)!important;font-weight:800;border:1px solid var(--lime);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px}
.nav-cta{min-height:42px;font-size:14px}
.nav-cta:hover,.button-main:hover{background:var(--lime-hi);transform:translateY(-2px);box-shadow:0 8px 20px rgba(177,226,57,.25)}
.button-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border:1px solid rgba(255,255,255,.62);color:#fff;border-radius:8px;font-weight:700}
.button-ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--ink);color:white;border:0;border-radius:8px;width:46px;height:46px;font-size:22px}
.off-canvas{background:var(--ink);padding:26px 22px}
.off-canvas .brand{color:var(--lime);margin-bottom:22px}
.mobile-links a{display:block;color:#fff;border-bottom:1px solid var(--darkline);padding:15px 2px;font-weight:700}
.mobile-links a:hover{color:var(--lime)}
.page-hero{position:relative;background:var(--graphite);color:#fff;padding:76px 0 82px;overflow:hidden}
.page-hero:after{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(36,201,196,.28);border-radius:50%;right:-110px;top:-210px;box-shadow:0 0 0 28px rgba(36,201,196,.04),0 0 0 58px rgba(201,243,91,.035)}
.page-hero .grid-x{position:relative;z-index:1}
.crumb{font-size:13px;color:#aeb9b0;margin-bottom:25px}
.crumb a:hover{color:var(--lime)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(201,243,91,.58);border-radius:999px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.05em}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 14px var(--lime)}
.page-hero h1{font-size:clamp(34px,5vw,62px);line-height:1.16;letter-spacing:-.055em;margin:18px 0 18px;font-weight:800}
.page-hero p{max-width:720px;color:#dbe2dc;font-size:17px;margin:0}
.hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:10px}
.metric-box{border:1px solid var(--darkline);border-radius:12px;padding:19px;background:rgba(255,255,255,.04)}
.metric-box strong{display:block;color:var(--lime);font-size:27px;line-height:1.1}
.metric-box span{display:block;color:#c2ccc3;font-size:12px;margin-top:6px}
.section{padding:92px 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--graphite);color:white}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3.2vw,43px);line-height:1.2;letter-spacing:-.045em;font-weight:800;margin:0}
.section-head p{max-width:500px;color:var(--muted);font-size:15px;margin:0}
.section-dark .section-head p{color:#c8d0c9}
.section-no{font-size:12px;font-weight:800;color:#728078;letter-spacing:.1em;margin-bottom:10px}
.section-dark .section-no{color:var(--lime)}
.scope-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:48px;align-items:start}
.scope-copy p{color:var(--muted);margin-top:18px}
.tag-list{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
.tag{border:1px solid var(--line);padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#46524b;background:#fbfcf8}
.tag.cyan{color:#087d79;border-color:rgba(36,201,196,.38);background:#ebfbfa}
.flow-list{border-left:2px solid var(--cyan);padding-left:26px}
.flow-item{position:relative;padding:0 0 27px 5px}
.flow-item:last-child{padding-bottom:0}
.flow-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--lime);left:-34px;top:8px;box-shadow:0 0 0 5px var(--warm)}
.flow-item h3{font-size:19px;margin:0 0 4px}
.flow-item p{font-size:14px;color:var(--muted);margin:0}
.platform-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:16px}
.platform-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:205px;position:relative;overflow:hidden}
.platform-card.featured{background:var(--ink);color:#fff;grid-row:span 2;min-height:425px}
.platform-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(36,201,196,.5)}
.platform-card h3{font-size:20px;line-height:1.35;margin:0 0 10px}
.platform-card p{font-size:14px;color:var(--muted);margin:0}
.platform-card.featured p{color:#cbd4cc}
.card-no{position:absolute;right:18px;bottom:8px;font-size:54px;font-weight:800;color:rgba(36,201,196,.19)}
.platform-card.featured .card-no{color:rgba(201,243,91,.2);font-size:88px}
.card-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:20px}
.card-tags span{font-size:11px;padding:4px 8px;border:1px solid var(--line);border-radius:5px;color:#5c6861}
.featured .card-tags span{border-color:var(--darkline);color:var(--lime)}
.cover-panel{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.cover-panel img{width:100%;height:100%;min-height:330px;object-fit:cover}
.cover-text{padding:38px}
.cover-text h3{font-size:28px;line-height:1.3;margin:0 0 14px}
.cover-text p{color:var(--muted);font-size:15px}
.data-lines{margin-top:25px;border-top:1px solid var(--line)}
.data-line{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.data-line strong{color:#087d79}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
.compare-table{width:100%;border-collapse:collapse;min-width:680px}
.compare-table th,.compare-table td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line);font-size:14px}
.compare-table th{background:#edf1ea;font-weight:800}
.compare-table tr:last-child td{border-bottom:0}
.status{display:inline-flex;align-items:center;gap:7px;color:#087d79;font-weight:800}
.status:before{content:"";width:7px;height:7px;background:var(--cyan);border-radius:50%}
.case-section{background:var(--ink);color:#fff}
.case-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:45px;align-items:center}
.case-image{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--darkline)}
.case-image img{width:100%;height:380px;object-fit:cover;opacity:.8}
.case-image:after{content:"车端 ↔ 云端 ↔ 运营";position:absolute;left:24px;bottom:22px;color:var(--lime);font-size:14px;font-weight:800;letter-spacing:.08em}
.case-copy h2{font-size:clamp(28px,3.4vw,46px);line-height:1.2;margin:0 0 17px}
.case-copy p{color:#c8d0c9}
.case-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:25px}
.case-points div{border-left:2px solid var(--lime);padding-left:13px;color:#dce4dc;font-size:14px}
.verify-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.verify-item{padding:22px 18px;border-right:1px solid var(--line)}
.verify-item:last-child{border-right:0}
.verify-item strong{display:block;font-size:23px;color:var(--ink)}
.verify-item span{font-size:13px;color:var(--muted)}
.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.quick-item{padding:22px 24px;background:var(--paper);border:1px solid var(--line);border-radius:12px}
.quick-item h3{font-size:17px;margin:0 0 7px}
.quick-item p{font-size:14px;color:var(--muted);margin:0}
.accordion{background:transparent;margin:0}
.accordion-title{background:var(--paper);border:1px solid var(--line);color:var(--ink);font-size:16px;font-weight:750;padding:19px 22px}
.accordion-title:hover,.is-active>.accordion-title{background:#eef6e3;color:var(--ink);border-color:rgba(36,201,196,.5)}
.accordion-content{border:1px solid var(--line);border-top:0;background:#fffefa;color:var(--muted);font-size:14px;padding:18px 22px}
.cta-panel{background:var(--graphite);color:#fff;border-radius:var(--radius-lg);padding:43px}
.cta-panel h2{margin:0 0 10px}
.cta-panel>p{color:#cbd4cc;margin-top:0}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.form-field label{display:block;color:#e6ece6;font-size:13px;font-weight:700;margin-bottom:6px}
.form-field input,.form-field select,.form-field textarea{width:100%;background:#2b312c;color:#fff;border:1px solid var(--darkline);border-radius:7px;padding:12px 13px;min-height:46px}
.form-field textarea{min-height:105px;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:#89968c}
.form-wide{grid-column:1/-1}
.form-submit{margin-top:18px}
.footer{background:var(--ink);color:#dce4dc;padding:58px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:35px}
.footer .brand{color:#fff;margin-bottom:15px}
.footer p{color:#aeb9b0;font-size:14px;max-width:280px}
.footer h3{color:var(--lime);font-size:14px;margin:0 0 12px}
.footer-grid>div>a:not(.brand){display:block;color:#b9c4bb;font-size:13px;margin:7px 0}
.footer-grid>div>a:hover,.footer-bottom a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid var(--darkline);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#89968c;font-size:12px}
.footer-bottom div{display:flex;gap:18px}
@media(max-width:992px){
 .desktop-nav{gap:12px}.desktop-nav a{font-size:13px}.nav-cta{padding:0 13px}
 .scope-layout,.case-grid{grid-template-columns:1fr}.platform-grid{grid-template-columns:1fr 1fr}.platform-card.featured{grid-row:auto;min-height:260px}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
 .topline .grid-container{padding-top:6px;padding-bottom:6px}.top-contact a:last-child{display:none}
 .header .grid-container{height:70px}.desktop-nav,.header>.grid-container>.nav-cta{display:none}.menu-toggle{display:block}
 .page-hero{padding:53px 0 60px}.hero-metrics{margin-top:30px}
 .section{padding:68px 0}.section-head{display:block}.section-head p{margin-top:13px}
 .platform-grid,.cover-panel,.quick-grid{grid-template-columns:1fr}.cover-panel img{min-height:235px}.cover-text{padding:27px}
 .verify-strip{grid-template-columns:1fr 1fr}.verify-item:nth-child(2){border-right:0}.verify-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .cta-panel{padding:28px 22px}
}
@media(max-width:520px){
 .grid-container{padding-left:18px;padding-right:18px}
 .tech-ticks{gap:9px;font-size:11px}.top-contact{font-size:11px}
 .brand{font-size:17px}.brand-mark{width:23px;height:23px}
 .page-hero h1{font-size:35px}.page-hero p{font-size:15px}
 .hero-metrics{grid-template-columns:1fr 1fr}.metric-box{padding:14px}.metric-box strong{font-size:23px}
 .section{padding:55px 0}.section-head h2{font-size:29px}
 .platform-card{min-height:180px}.platform-card.featured{min-height:230px}
 .case-points,.form-grid{grid-template-columns:1fr}.form-wide{grid-column:auto}
 .footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom div{margin-top:10px}
}
@media(max-width:375px){body{font-size:15px}.page-hero h1{font-size:32px}.hero-metrics{gap:8px}.metric-box strong{font-size:20px}}