/* roulang page: index */
:root{--green:#087e72;--green-dark:#05675e;--ink:#17302d;--muted:#5e716d;--cream:#faf8f3;--mint:#edf6f2;--amber:#e99b42;--line:#d8e5df;--white:#fff;--shadow:0 14px 38px rgba(23,48,45,.09);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 48px));margin:0 auto}.topbar{background:var(--ink);color:#dcece7;font-size:13px}.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,48,45,.08);border-color:var(--line)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}.logo i{display:inline-flex;width:27px;height:27px;margin-right:7px;vertical-align:-6px;border-radius:9px;background:var(--green);position:relative}.logo i:before,.logo i:after{content:"";position:absolute;border-radius:50%;background:#fff}.logo i:before{width:7px;height:7px;left:6px;top:6px}.logo i:after{width:7px;height:7px;right:5px;bottom:5px}.navlinks{display:flex;align-items:center;gap:7px}.navlinks a{padding:10px 13px;border-radius:9px;color:#38504b;font-size:15px;transition:.2s}.navlinks a:hover,.navlinks a.active{background:#dff0e9;color:var(--green-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 19px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(8,126,114,.2)}.btn:active{transform:translateY(0)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,155,66,.5);outline-offset:3px}.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green-dark)}.btn-outline{border-color:#a9c6bd;background:#fff;color:var(--ink)}.btn-outline:hover{background:var(--mint)}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}.hero{position:relative;min-height:675px;overflow:hidden;background:var(--ink);color:#fff}.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .75s ease,visibility .75s}.slide.active{opacity:1;visibility:visible}.slide-bg{position:absolute;inset:0;background-size:cover;background-position:center}.slide-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,43,39,.89) 0%,rgba(15,43,39,.69) 47%,rgba(15,43,39,.28) 100%)}.route-lines{position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle at 15% 70%,rgba(233,155,66,.9) 0 4px,transparent 5px),radial-gradient(circle at 78% 22%,rgba(255,255,255,.85) 0 4px,transparent 5px),linear-gradient(124deg,transparent 32%,rgba(190,238,219,.32) 32.2%,transparent 32.6%),linear-gradient(160deg,transparent 65%,rgba(233,155,66,.25) 65.2%,transparent 65.5%)}.hero-content{position:relative;z-index:2;min-height:675px;display:flex;align-items:center;padding:88px 0 106px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.11);border-radius:8px;font-size:13px;color:#e4f7f0}.eyebrow b{width:7px;height:7px;border-radius:50%;background:var(--amber)}h1,h2,h3,p{margin-top:0}.hero h1{max-width:820px;margin:17px 0 18px;font-size:clamp(37px,5vw,58px);line-height:1.2;letter-spacing:-1.8px;font-weight:800}.hero p{max-width:720px;font-size:17px;line-height:1.9;color:#e6f1ed}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero .btn-outline{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.48)}.hero-meta{position:absolute;z-index:3;bottom:30px;left:50%;transform:translateX(-50%);width:min(1240px,calc(100% - 48px));display:flex;gap:10px;flex-wrap:wrap}.microtag{padding:8px 12px;background:rgba(250,248,243,.9);color:var(--ink);border-radius:9px;font-size:13px;font-weight:700}.slider-controls{position:absolute;z-index:4;right:max(24px,calc((100% - 1240px)/2));bottom:34px;display:flex;gap:8px}.dot{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(23,48,45,.48);color:#fff}.dot.active{background:var(--amber);border-color:var(--amber)}section{padding:96px 0}.section-kicker{font-size:13px;color:var(--green);font-weight:800;letter-spacing:.08em}.section-title{font-size:clamp(28px,3.4vw,40px);line-height:1.3;letter-spacing:-1px;margin:10px 0 15px}.section-lead{max-width:760px;color:var(--muted)}.intro-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}.image-stack{position:relative;padding:16px 38px 38px 0}.image-stack img{border-radius:var(--radius);height:440px;width:100%;object-fit:cover;box-shadow:var(--shadow)}.float-panel{position:absolute;right:0;bottom:0;width:210px;background:#fff;padding:17px;border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--line)}.float-panel strong{font-size:28px;color:var(--green);display:block}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:23px 0}.tag{padding:6px 10px;border-radius:7px;background:#e5f2ed;color:#246157;font-size:13px;font-weight:700}.check-list{list-style:none;padding:0;margin:22px 0}.check-list li{padding:9px 0;border-bottom:1px solid var(--line);color:#435955}.check-list li:before{content:"✓";color:var(--green);font-weight:900;margin-right:10px}.value-grid{display:grid;grid-template-columns:1.3fr .72fr 1.3fr;gap:18px;margin-top:42px}.value-card{min-height:287px;padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;position:relative;overflow:hidden;transition:.25s}.value-card:hover,.adv-card:hover,.product-card:hover,.story:hover,.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.value-card:nth-child(2){background:var(--green);color:#fff}.value-card:nth-child(3){background:#f6eee2}.value-card h3{font-size:23px;line-height:1.35}.value-card ul{padding-left:18px;font-size:14px}.path{position:absolute;right:-15px;bottom:-24px;width:160px;height:100px;border:2px dashed rgba(8,126,114,.35);border-radius:50%;transform:rotate(-18deg)}.value-card:nth-child(2) .path{border-color:rgba(255,255,255,.48)}.timeline-wrap{background:var(--mint);border-radius:28px;padding:48px;margin-top:35px;position:relative;overflow:hidden}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}.timeline:before{content:"";position:absolute;height:2px;background:#9dcfc0;left:14%;right:14%;top:30px}.step{position:relative;z-index:1}.step-no{width:61px;height:61px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--green);font-weight:800;border:8px solid var(--mint);box-shadow:0 0 0 2px #9dcfc0}.step h3{margin:17px 0 8px;font-size:20px}.step p{color:var(--muted);font-size:14px}.entry-box{margin-top:30px;padding:26px;background:#fffaf2;border:1px solid #eddabc;border-radius:18px}.entry-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:15px}.entry-links a{padding:13px 10px;border:1px solid #e4d3b8;border-radius:10px;background:#fff;transition:.2s;font-weight:700;font-size:14px}.entry-links a:hover{color:var(--green);border-color:var(--green);transform:translateY(-2px)}.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.adv-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px;transition:.25s}.icon{width:46px;height:46px;border-radius:13px;background:#ddf1e9;color:var(--green);display:grid;place-items:center;font-size:23px;font-weight:800}.adv-card h3{font-size:19px;margin:16px 0 8px}.adv-card p{font-size:14px;color:var(--muted);margin:0}.products{background:#f0f5f1}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px;align-items:center}.product-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.25s}.product-card.featured{transform:translateY(-13px);border-color:#89bfb1}.product-card img{height:180px;width:100%;object-fit:cover}.product-body{padding:24px}.product-body h3{font-size:22px;margin:10px 0}.product-body li{font-size:14px;color:var(--muted);margin:7px 0}.text-link{display:inline-flex;gap:7px;margin-top:14px;color:var(--green);font-weight:800}.case-dark{background:var(--ink);color:#fff;position:relative;overflow:hidden}.case-dark:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(150,219,196,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(150,219,196,.07) 1px,transparent 1px);background-size:34px 34px}.case-grid{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}.metric-panel{border:1px solid rgba(186,235,215,.23);background:#20413d;padding:30px;border-radius:22px}.compare-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:17px}.compare-row div{padding:18px;border-radius:13px;background:#17302d}.compare-row div:last-child{background:#0c665c}.compare-row strong{font-size:30px;display:block;color:#f4ba70}.case-dark .section-lead{color:#c0d9d1}.case-list{list-style:none;padding:0;margin:21px 0}.case-list li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.14);color:#d6e7e2}.stories{display:grid;gap:30px;margin-top:38px}.story{display:grid;grid-template-columns:.9fr 1.1fr;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:.25s}.story:nth-child(2){grid-template-columns:1.1fr .9fr}.story:nth-child(2) img{order:2}.story img{width:100%;height:300px;object-fit:cover}.story-copy{padding:38px}.story-copy blockquote{font-size:21px;line-height:1.55;margin:18px 0;color:#29433e}.stats{background:#e4f2ec}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.stat{border-left:2px solid #92c6b7;padding-left:20px}.stat b{display:block;color:var(--green);font-size:38px;line-height:1.15}.stat span{font-size:14px;color:var(--muted)}.quotes{overflow:hidden}.quote-track{display:flex;gap:18px;margin-top:35px;overflow:auto;padding:3px 3px 15px;scroll-snap-type:x mandatory}.quote{min-width:min(390px,86vw);scroll-snap-align:start;padding:27px;border:1px solid var(--line);background:#fff;border-radius:18px;transition:.25s}.quote:nth-child(2){background:#f7efe2}.stars{color:var(--amber);letter-spacing:2px}.quote p{color:#455c57;margin:15px 0}.quote footer{font-size:14px;font-weight:800;color:var(--ink)}.news{background:#fff}.news-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;margin-top:32px}.news-list article{padding:20px 0;border-bottom:1px solid var(--line)}.news-list article:first-child{padding-top:0}.news-list h3{font-size:20px;margin:5px 0}.news-list p{margin:0;color:var(--muted);font-size:14px}.date{font-size:13px;color:var(--green);font-weight:800}.news-aside{background:var(--mint);padding:28px;border-radius:20px}.news-aside img{height:165px;width:100%;object-fit:cover;border-radius:14px;margin-bottom:18px}.faq-grid{display:grid;grid-template-columns:.65fr 1.35fr;gap:48px}.faq-index{border-left:2px solid #bddbd1;padding-left:20px;color:var(--muted)}.faq-index p{margin:10px 0}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;padding:20px 0;background:none;border:0;text-align:left;display:flex;justify-content:space-between;gap:16px;font-weight:800;color:var(--ink);font-size:17px}.faq-q span:last-child{color:var(--green);transition:.2s}.faq-q[aria-expanded="true"] span:last-child{transform:rotate(45deg)}.faq-a{display:none;padding:0 40px 21px 0;color:var(--muted);font-size:15px}.faq-a.open{display:block}.cta{padding:0 0 100px}.cta-box{position:relative;overflow:hidden;background:linear-gradient(120deg,#d9eee6,#f8efd9);border-radius:28px;padding:56px;display:grid;grid-template-columns:1fr .9fr;gap:55px}.cta-box:after{content:"";position:absolute;right:-60px;top:-90px;width:300px;height:300px;border:38px solid rgba(8,126,114,.1);border-radius:50%}.cta-box h2{font-size:36px;line-height:1.3;margin-bottom:15px}.cta-box p{color:#46605a}.form{position:relative;z-index:1;background:#fff;padding:25px;border-radius:18px;box-shadow:0 15px 30px rgba(23,48,45,.1)}.form h3{font-size:20px;margin-bottom:3px}.form small{display:block;color:var(--muted);margin-bottom:15px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:11px}.fields input,.fields select,.fields textarea{width:100%;border:1px solid #cbded7;border-radius:9px;padding:11px 12px;background:#fcfefd;color:var(--ink)}.fields textarea{grid-column:1/-1;min-height:77px;resize:vertical}.form .btn{width:100%;margin-top:12px}.form-message{display:none;margin-top:10px;padding:9px;background:#e1f2eb;color:#176055;border-radius:8px;font-size:14px}.site-footer{background:var(--ink);color:#d9e7e2;padding:62px 0 88px}.footer-grid{display:grid;grid-template-columns:1.35fr .7fr .9fr .8fr;gap:30px}.site-footer .logo{color:#fff}.site-footer p,.site-footer li{font-size:14px;color:#b6cbc4}.site-footer h3{font-size:15px;color:#fff;margin-bottom:14px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:8px 0}.site-footer a:hover{color:#8de0c4}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:20px;font-size:13px;color:#9fb8b0;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}.float-cta{position:fixed;z-index:45;right:22px;bottom:22px;display:flex;gap:7px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.float-cta a{min-height:42px;padding:9px 12px;border-radius:9px;font-weight:800;font-size:14px}.float-cta a:first-child{background:#eef5f2;color:var(--green)}.float-cta a:last-child{background:var(--green);color:#fff}
@media(max-width:1024px){.navlinks{gap:0}.navlinks a{padding:9px}.intro-grid,.case-grid{gap:40px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,1240px)}.topbar-inner{font-size:12px}.topbar-inner span:last-child{display:none}.nav{height:67px}.navlinks{display:none;position:absolute;top:67px;left:0;right:0;padding:14px 16px 20px;background:var(--cream);box-shadow:0 12px 25px rgba(23,48,45,.1);flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:13px}.nav .btn-primary{display:none}.menu-btn{display:grid;place-items:center}.hero,.hero-content{min-height:625px}.hero-content{padding:70px 0 120px}.hero p{font-size:15px}.hero-meta{bottom:19px}.slider-controls{right:16px;bottom:18px}.intro-grid,.case-grid,.faq-grid,.news-grid,.cta-box{grid-template-columns:1fr;gap:32px}.value-grid{grid-template-columns:1fr}.value-card{min-height:220px}.timeline-wrap{padding:28px 22px}.timeline{grid-template-columns:1fr;gap:16px}.timeline:before{width:2px;height:auto;top:25px;bottom:25px;left:30px}.step{padding-left:0}.entry-links{grid-template-columns:repeat(2,1fr)}.adv-grid,.product-grid{grid-template-columns:repeat(2,1fr)}.product-card.featured{transform:none}.story,.story:nth-child(2){grid-template-columns:1fr}.story:nth-child(2) img{order:0}.stat-grid{grid-template-columns:repeat(2,1fr)}section{padding:66px 0}.cta{padding-bottom:90px}.cta-box{padding:35px 23px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.topbar{display:none}.site-header{top:0}.hero h1{font-size:34px}.hero-content{min-height:590px;padding-top:55px}.hero-meta{width:calc(100% - 32px);padding-right:48px}.microtag{font-size:11px;padding:7px 8px}.hero-actions .btn{width:100%}.image-stack{padding-right:17px}.image-stack img{height:320px}.float-panel{width:175px}.adv-grid,.product-grid{grid-template-columns:1fr}.timeline-wrap{margin-top:24px}.story-copy{padding:26px}.story img{height:230px}.stat b{font-size:30px}.cta-box h2{font-size:29px}.fields{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.float-cta{left:10px;right:10px;bottom:10px;justify-content:center}.float-cta a{flex:1;text-align:center}.site-footer{padding-bottom:106px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{--green:#087e72;--green-dark:#05675e;--ink:#17302d;--muted:#5e716d;--cream:#faf8f3;--mint:#edf6f2;--amber:#e99b42;--line:#d8e5df;--white:#fff;--shadow:0 14px 38px rgba(23,48,45,.09);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 48px));margin:0 auto}.topbar{background:var(--ink);color:#dcece7;font-size:13px}.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar a{color:#fff;font-weight:700}.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,48,45,.08);border-color:var(--line)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}.logo i{display:inline-flex;width:27px;height:27px;margin-right:7px;vertical-align:-6px;border-radius:9px;background:var(--green);position:relative}.logo i:before,.logo i:after{content:"";position:absolute;border-radius:50%;background:#fff}.logo i:before{width:7px;height:7px;left:6px;top:6px}.logo i:after{width:7px;height:7px;right:5px;bottom:5px}.navlinks{display:flex;align-items:center;gap:7px}.navlinks a{padding:10px 13px;border-radius:9px;color:#38504b;font-size:15px;transition:.2s}.navlinks a:hover,.navlinks a.active{background:#dff0e9;color:var(--green-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 19px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(8,126,114,.2)}.btn:active{transform:translateY(0)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,155,66,.55);outline-offset:3px}.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green-dark)}.btn-outline{border-color:#a9c6bd;background:#fff;color:var(--ink)}.btn-outline:hover{background:var(--mint)}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}section{padding:92px 0}.eyebrow{color:var(--green);font-size:13px;font-weight:800;letter-spacing:.1em}.section-title{font-size:clamp(29px,3.3vw,40px);line-height:1.3;letter-spacing:-1px;margin:10px 0 14px}.section-lead{max-width:760px;color:var(--muted);margin:0}.page-head{padding:55px 0 42px;background:linear-gradient(120deg,#edf6f2 0%,#faf8f3 62%,#f7eee0 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}.page-head:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(8,126,114,.16);border-radius:50%;right:-100px;top:-180px;box-shadow:0 0 0 42px rgba(8,126,114,.04),0 0 0 84px rgba(8,126,114,.03)}.breadcrumb{position:relative;z-index:1;font-size:14px;color:var(--muted);margin-bottom:20px}.breadcrumb span{padding:0 8px;color:#9aaeaa}.page-head-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:50px;align-items:end}.page-head h1{font-size:clamp(36px,4.5vw,54px);line-height:1.2;letter-spacing:-1.8px;margin:12px 0 16px}.page-head p{color:#46605a;max-width:690px;margin:0}.catalog-note{background:var(--ink);color:#eff8f4;padding:21px 23px;border-radius:16px;box-shadow:var(--shadow)}.catalog-note strong{display:block;color:#f4ba70;font-size:14px;margin-bottom:7px}.catalog-note span{font-size:14px;line-height:1.65}.guide{padding:26px 0;background:#fff;border-bottom:1px solid var(--line)}.guide-inner{display:flex;align-items:center;gap:20px;justify-content:space-between}.guide-label{font-size:14px;font-weight:800;white-space:nowrap}.tag-list{display:flex;gap:8px;flex-wrap:wrap}.tag{padding:6px 11px;border-radius:8px;background:#e5f2ed;color:#246157;font-size:13px;font-weight:700}.tag.amber{background:#fbefdc;color:#9c5a16}.ability-list{margin-top:40px;display:grid;gap:24px}.ability-item{display:grid;grid-template-columns:250px 1fr;min-height:245px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 6px 18px rgba(23,48,45,.035);transition:.25s}.ability-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.ability-item:nth-child(even){grid-template-columns:1fr 250px}.ability-item:nth-child(even) .ability-media{order:2}.ability-media{position:relative;min-height:230px}.ability-media img{height:100%;width:100%;object-fit:cover}.ability-index{position:absolute;left:18px;top:16px;width:40px;height:40px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800}.ability-copy{padding:28px 34px}.ability-copy h3{font-size:24px;margin:0 0 8px;line-height:1.35}.ability-copy p{margin:0;color:var(--muted)}.feature-line{display:flex;flex-wrap:wrap;gap:9px;margin-top:17px}.feature-line span{font-size:13px;font-weight:700;color:#385d55;padding-left:15px;position:relative}.feature-line span:before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--amber)}.text-link{display:inline-flex;gap:7px;margin-top:17px;color:var(--green);font-weight:800}.diagram-wrap{margin-top:38px;padding:42px;background:var(--mint);border-radius:var(--radius);border:1px solid #d3e8df;overflow:hidden}.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;position:relative}.flow:before{content:"";position:absolute;top:46px;left:9%;right:9%;height:2px;background:linear-gradient(90deg,var(--green),var(--amber),var(--green))}.flow-node{position:relative;z-index:1;text-align:center}.flow-icon{width:92px;height:92px;margin:0 auto 14px;background:#fff;border:1px solid var(--line);border-radius:25px;display:grid;place-items:center;color:var(--green);font-weight:800;font-size:27px;box-shadow:0 8px 18px rgba(23,48,45,.06)}.flow-node h3{font-size:16px;margin:0 0 5px}.flow-node p{margin:0;font-size:13px;line-height:1.6;color:var(--muted)}.terminal-grid{margin-top:38px;display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center}.screen-board{min-height:365px;border-radius:22px;padding:23px;background:var(--ink);position:relative;overflow:hidden}.screen-board:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;border:1px solid rgba(255,255,255,.12);right:-160px;top:-160px}.mock-header{height:24px;display:flex;gap:6px;position:relative}.mock-header b{height:8px;width:8px;border-radius:50%;background:#e99b42}.mock-layout{position:relative;display:grid;grid-template-columns:130px 1fr;gap:14px;margin-top:16px}.mock-side,.mock-map,.mock-small{border-radius:12px;background:#244540}.mock-side{height:262px;padding:16px}.mock-side i{display:block;height:11px;border-radius:5px;background:rgba(255,255,255,.18);margin-bottom:16px}.mock-map{height:262px;background:linear-gradient(135deg,#285650,#1c3b37);position:relative;overflow:hidden}.route{position:absolute;width:260px;height:150px;border:3px solid #89d8c8;border-left-color:transparent;border-bottom-color:#e99b42;border-radius:50%;left:12%;top:22%;transform:rotate(-18deg)}.station{position:absolute;width:13px;height:13px;border-radius:50%;border:3px solid #fff;background:var(--amber)}.station.one{left:29%;top:40%}.station.two{right:25%;top:29%;background:#72c9b9}.station.three{right:20%;bottom:27%}.terminal-copy{padding:16px}.terminal-copy h3{font-size:26px;margin:0 0 12px}.check-list{list-style:none;padding:0;margin:17px 0}.check-list li{padding:10px 0;border-bottom:1px solid var(--line);color:#435955}.check-list li:before{content:"✓";color:var(--green);font-weight:900;margin-right:10px}.security{background:#f1f7f4}.security-grid{margin-top:38px;display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}.permission-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;position:relative;overflow:hidden}.permission-card:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-85px;bottom:-110px}.permission-card h3{position:relative;z-index:1;font-size:25px;margin:0 0 15px}.permission-card p{position:relative;z-index:1;color:#c4ded6;margin:0}.levels{position:relative;z-index:1;display:grid;gap:10px;margin-top:25px}.level{border:1px solid rgba(255,255,255,.16);padding:11px 14px;border-radius:10px;background:#21423d;display:flex;justify-content:space-between;gap:12px;font-size:14px}.security-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.security-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:24px;transition:.25s}.security-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.security-card b{display:inline-grid;place-items:center;width:39px;height:39px;border-radius:12px;background:#dff0e9;color:var(--green);font-size:19px}.security-card h3{font-size:18px;margin:14px 0 6px}.security-card p{font-size:14px;color:var(--muted);margin:0}.deploy-grid{margin-top:38px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.deploy-step{position:relative;background:#fff;padding:25px 21px;border:1px solid var(--line);border-radius:17px}.deploy-step em{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#f8e2c4;color:#88500f;font-style:normal;font-weight:800;font-size:14px}.deploy-step h3{font-size:18px;margin:16px 0 8px}.deploy-step p{font-size:14px;color:var(--muted);margin:0}.faq-consult{background:linear-gradient(135deg,#edf6f2,#faf8f3)}.faq-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:start}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);background:#fff;border-radius:13px;overflow:hidden}.faq-question{width:100%;padding:17px 18px;border:0;background:#fff;color:var(--ink);text-align:left;font-weight:800;display:flex;align-items:center;justify-content:space-between;gap:18px}.faq-question span{font-size:22px;color:var(--green);transition:.2s}.faq-question[aria-expanded="true"] span{transform:rotate(45deg)}.faq-answer{display:none;padding:0 18px 18px;color:var(--muted);font-size:14px}.faq-answer.open{display:block}.consult-box{background:var(--ink);border-radius:var(--radius);padding:31px;color:#fff}.consult-box h2{font-size:29px;line-height:1.35;margin:0 0 10px}.consult-box p{color:#c8ddd7;font-size:14px;margin:0 0 21px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;color:#d8ebe5}.field input,.field select,.field textarea{width:100%;border:1px solid #41645e;border-radius:9px;background:#254843;color:#fff;padding:11px 12px;outline:none}.field input::placeholder,.field textarea::placeholder{color:#a7c3bb}.field textarea{height:80px;resize:vertical}.form-tip{font-size:12px;color:#a9c7bf;margin:13px 0}.form-message{display:none;margin-top:13px;padding:10px 12px;border-radius:9px;background:#dff0e9;color:#12564d;font-size:14px}.site-footer{background:var(--ink);color:#c5d9d3;padding:68px 0 24px}.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .9fr 1fr;gap:36px}.site-footer .logo{color:#fff}.site-footer p{font-size:14px;margin:0}.site-footer h3{font-size:15px;color:#fff;margin:0 0 15px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{font-size:14px;margin:8px 0}.site-footer a:hover{color:#9bddcc}.footer-bottom{margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:20px;font-size:13px}.floating-bar{position:fixed;z-index:40;right:22px;bottom:22px;display:flex;overflow:hidden;border-radius:13px;box-shadow:0 12px 32px rgba(23,48,45,.22)}.floating-bar a{min-height:48px;display:flex;align-items:center;padding:0 17px;font-size:14px;font-weight:800;background:#fff;color:var(--ink)}.floating-bar a:last-child{background:var(--green);color:#fff}.floating-bar a:hover{filter:brightness(.96)}
@media(max-width:1024px){.navlinks{gap:1px}.navlinks a{padding:9px}.page-head-grid,.faq-grid{gap:30px}.ability-item,.ability-item:nth-child(even){grid-template-columns:210px 1fr}.ability-item:nth-child(even) .ability-media{order:0}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){body{font-size:15px}.container{width:min(100% - 32px,1240px)}.topbar-inner{height:auto;min-height:38px;padding:7px 0}.topbar-inner span:last-child{display:none}.nav{height:68px;gap:12px}.logo{font-size:17px}.logo i{width:24px;height:24px;margin-right:5px}.nav>.btn{display:none}.menu-btn{display:block;margin-left:auto}.navlinks{display:none;position:absolute;left:16px;right:16px;top:68px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px}.page-head{padding:38px 0 32px}.page-head-grid{grid-template-columns:1fr;gap:20px}.page-head h1{font-size:36px}.guide-inner{align-items:flex-start;flex-direction:column;gap:10px}.ability-list{margin-top:28px}.ability-item,.ability-item:nth-child(even){grid-template-columns:1fr}.ability-media{min-height:190px}.ability-item:nth-child(even) .ability-media{order:0}.ability-copy{padding:23px}.flow{grid-template-columns:1fr;gap:16px}.flow:before{left:46px;top:50px;bottom:50px;width:2px;height:auto;right:auto;background:linear-gradient(var(--green),var(--amber),var(--green))}.flow-node{display:grid;grid-template-columns:92px 1fr;column-gap:16px;text-align:left;align-items:center}.flow-icon{margin:0;grid-row:span 2}.flow-node h3{margin:0}.terminal-grid,.security-grid,.faq-grid{grid-template-columns:1fr}.screen-board{min-height:300px}.mock-layout{grid-template-columns:85px 1fr}.mock-side,.mock-map{height:205px}.security-cards{grid-template-columns:1fr}.deploy-grid{grid-template-columns:repeat(2,1fr)}section{padding:64px 0}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:8px 0}.floating-bar{left:0;right:0;bottom:0;border-radius:0}.floating-bar a{flex:1;justify-content:center}.site-footer{padding-bottom:82px}}
@media(max-width:520px){.page-head h1{font-size:32px}.catalog-note{padding:18px}.ability-copy h3{font-size:21px}.deploy-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.section-title{font-size:28px}.mock-side{display:none}.mock-layout{grid-template-columns:1fr}.floating-bar a{padding:0 10px;font-size:13px}}

/* roulang page: category2 */
:root{--green:#087e72;--green-dark:#05675e;--ink:#17302d;--muted:#5e716d;--cream:#faf8f3;--mint:#edf6f2;--amber:#e99b42;--line:#d8e5df;--white:#fff;--shadow:0 14px 38px rgba(23,48,45,.09);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 48px));margin:0 auto}
.topbar{background:var(--ink);color:#dcece7;font-size:13px}.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar-right{display:flex;align-items:center;gap:18px}.topbar a{color:#dcece7}.topbar a:hover{color:#fff}
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,48,45,.08);border-color:var(--line)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}.logo i{display:inline-flex;width:27px;height:27px;margin-right:7px;vertical-align:-6px;border-radius:9px;background:var(--green);position:relative}.logo i:before,.logo i:after{content:"";position:absolute;border-radius:50%;background:#fff}.logo i:before{width:7px;height:7px;left:6px;top:6px}.logo i:after{width:7px;height:7px;right:5px;bottom:5px}.navlinks{display:flex;align-items:center;gap:7px}.navlinks a{padding:10px 13px;border-radius:9px;color:#38504b;font-size:15px;transition:.2s}.navlinks a:hover,.navlinks a.active{background:#dff0e9;color:var(--green-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 19px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(8,126,114,.2)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green-dark)}.btn-outline{background:#fff;border-color:#a9c6bd;color:var(--ink)}.btn-outline:hover{background:var(--mint)}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,155,66,.55);outline-offset:3px}
section{padding:92px 0}.section-kicker{font-size:13px;color:var(--green);font-weight:800;letter-spacing:.08em}.section-title{font-size:clamp(28px,3.2vw,40px);line-height:1.3;letter-spacing:-1px;margin:10px 0 14px}.section-lead{max-width:760px;color:var(--muted);margin:0}.page-head{padding:58px 0 48px;background:linear-gradient(125deg,#edf6f2 0%,#faf8f3 64%,#f5eadb 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}.page-head:after{content:"";position:absolute;width:510px;height:510px;border:1px solid rgba(8,126,114,.15);border-radius:50%;right:-170px;top:-265px;box-shadow:0 0 0 38px rgba(8,126,114,.04),0 0 0 78px rgba(8,126,114,.025)}.breadcrumb{position:relative;z-index:1;display:flex;gap:9px;align-items:center;color:var(--muted);font-size:14px}.breadcrumb span{color:#98aaa5}.page-head-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:50px;align-items:end;margin-top:22px}.page-head h1{font-size:clamp(34px,4.4vw,54px);line-height:1.2;letter-spacing:-1.7px;margin:12px 0 16px}.page-head p{max-width:730px;color:#46605a;margin:0}.application-note{background:rgba(255,255,255,.82);border:1px solid var(--line);box-shadow:var(--shadow);padding:22px;border-radius:16px}.application-note strong{display:block;font-size:17px}.application-note p{font-size:14px;margin:6px 0 0}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.tag{padding:6px 10px;border-radius:7px;background:#e0f0e9;color:#246157;font-size:13px;font-weight:700}.tag.warm{background:#faedda;color:#9a5c19}.solution-intro{padding-bottom:34px}.range-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;margin-top:35px}.range-panel,.role-panel{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:#fff}.range-panel{background:var(--ink);color:#fff;position:relative;overflow:hidden}.range-panel:after{content:"";position:absolute;right:-50px;bottom:-60px;width:230px;height:230px;border:1px solid rgba(255,255,255,.16);border-radius:50%;box-shadow:0 0 0 28px rgba(255,255,255,.04)}.range-panel h3,.role-panel h3{font-size:23px;line-height:1.35;margin:0 0 10px}.range-panel p{color:#cbe2da;position:relative;z-index:1}.role-list{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin-top:18px}.role-item{border-radius:12px;padding:14px;background:var(--mint);font-size:14px;font-weight:700;color:#31524b}.solutions{padding-top:68px}.solution-list{display:grid;gap:20px;margin-top:36px}.solution-item{display:grid;grid-template-columns:310px 1fr;min-height:260px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}.solution-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.solution-item img{width:100%;height:100%;object-fit:cover}.solution-content{padding:29px 32px;display:flex;flex-direction:column;justify-content:center}.solution-content h3{font-size:25px;line-height:1.35;margin:7px 0 10px}.solution-content p{margin:0;color:var(--muted)}.solution-points{display:flex;flex-wrap:wrap;gap:9px;margin-top:17px}.solution-points span{font-size:13px;padding:5px 9px;border-left:3px solid var(--amber);background:#fbf6ee;color:#5f5547}.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-weight:800;margin-top:19px}.text-link:hover{color:var(--green-dark)}.flow-section{background:var(--mint);position:relative}.flow-grid{display:grid;grid-template-columns:.84fr 1.16fr;gap:60px;align-items:center}.flow-list{display:grid;gap:10px;margin-top:25px}.flow-item{display:grid;grid-template-columns:44px 1fr;gap:13px;align-items:start}.flow-num{width:36px;height:36px;display:grid;place-items:center;background:var(--green);border-radius:11px;color:#fff;font-weight:800}.flow-item h3{font-size:17px;margin:0}.flow-item p{font-size:14px;color:var(--muted);margin:2px 0}.route-board{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:406px;position:relative;overflow:hidden}.route-board:before{content:"";position:absolute;inset:0;opacity:.45;background-image:linear-gradient(rgba(8,126,114,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(8,126,114,.08) 1px,transparent 1px);background-size:32px 32px}.route-line{position:absolute;left:14%;top:27%;width:68%;height:45%;border-left:4px solid var(--green);border-bottom:4px solid var(--green);border-radius:0 0 0 65px;transform:rotate(-14deg)}.route-line:after{content:"";position:absolute;right:-9px;bottom:-9px;width:15px;height:15px;border:4px solid var(--amber);background:#fff;border-radius:50%}.node{position:absolute;z-index:1;display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;background:#fff;padding:7px 10px;border:1px solid var(--line);border-radius:9px;box-shadow:0 7px 17px rgba(23,48,45,.08)}.node:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green)}.node.one{left:8%;top:18%}.node.two{right:8%;top:31%}.node.three{left:29%;bottom:13%}.node.three:before{background:var(--amber)}.board-caption{position:absolute;z-index:1;left:28px;bottom:25px;color:var(--muted);font-size:13px}.matrix-wrap{margin-top:35px;overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.matrix{width:100%;min-width:760px;border-collapse:collapse;text-align:left}.matrix th,.matrix td{padding:17px 20px;border-bottom:1px solid var(--line);font-size:14px}.matrix th{background:#f4f8f6;color:#31524b;font-size:13px}.matrix tr:last-child td{border-bottom:0}.matrix td:first-child{font-weight:800}.yes{color:var(--green);font-weight:800}.optional{color:#aa691f;font-weight:800}.metrics-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;margin-top:36px}.metric-card{border:1px solid var(--line);border-radius:18px;padding:27px;background:#fff;transition:.25s}.metric-card:first-child{background:#f6eee2}.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.metric-card h3{font-size:19px;margin:0 0 9px}.metric-number{font-size:35px;font-weight:800;color:var(--green);line-height:1.1;margin:18px 0 7px}.metric-card p{font-size:14px;margin:0;color:var(--muted)}.implementation{background:var(--ink);color:#fff}.implementation .section-kicker{color:#8ed2c1}.implementation .section-lead{color:#c2d8d1}.implement-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}.implement-card{padding:25px;border-radius:18px;background:#20413c;border:1px solid rgba(202,231,220,.16)}.implement-card h3{font-size:20px;margin:0 0 12px}.implement-card ul{padding:0;margin:0;list-style:none;color:#d1e3dd;font-size:14px}.implement-card li{padding:8px 0;border-bottom:1px solid rgba(255,255,255,.1)}.implement-card li:last-child{border:0}.implement-card li:before{content:"✓";color:#f3b15e;margin-right:9px;font-weight:800}.faq-consult{padding-bottom:118px}.faq-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:55px;align-items:start}.faq-index{padding:26px;background:var(--mint);border-radius:18px}.faq-index p{font-size:14px;color:var(--muted)}.faq-index ul{list-style:none;padding:0;margin:17px 0 0}.faq-index li{padding:9px 0;border-bottom:1px solid #cfe3db;font-size:14px;font-weight:700}.faq-index li:last-child{border:0}.accordion{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;border:0;background:transparent;padding:20px 4px;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;color:var(--ink);font-size:17px;font-weight:800}.faq-question span:last-child{color:var(--green);font-size:24px;line-height:1;transition:.22s}.faq-question[aria-expanded="true"] span:last-child{transform:rotate(45deg)}.faq-answer{display:none;padding:0 4px 20px;color:var(--muted);font-size:15px}.faq-answer.open{display:block}.consult-box{margin-top:42px;padding:34px;border-radius:var(--radius);background:linear-gradient(110deg,#dff0e9,#f8f0e4);border:1px solid #cddfd7;display:grid;grid-template-columns:1fr .95fr;gap:38px;align-items:center}.consult-box h2{font-size:29px;line-height:1.35;margin:9px 0}.consult-box p{color:#4f665f;margin:0}.consult-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:5px}.field label{font-size:13px;font-weight:800}.field input,.field select,.field textarea{width:100%;border:1px solid #b7cec5;background:#fff;border-radius:10px;padding:10px 12px;color:var(--ink)}.field textarea{min-height:82px;resize:vertical}.field.full{grid-column:1/-1}.form-note,.form-error,.form-success{font-size:12px;margin:2px 0 0}.form-note{color:var(--muted)}.form-error{color:#ae3c2d;display:none}.form-success{display:none;padding:10px;border-radius:9px;background:#e3f3ed;color:#176254;font-weight:700}.site-footer{background:var(--ink);color:#c5d9d3;padding:62px 0 23px;position:relative}.site-footer:before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--amber),transparent)}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1fr 1fr;gap:38px}.site-footer .logo{color:#fff}.site-footer p{font-size:14px;max-width:330px}.site-footer h3{font-size:15px;color:#fff;margin:0 0 13px}.site-footer ul{padding:0;margin:0;list-style:none;font-size:14px}.site-footer li{margin:7px 0}.site-footer a:hover{color:#91d8c6}.footer-bottom{margin-top:42px;padding-top:19px;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:18px;font-size:13px}.float-bar{position:fixed;right:22px;bottom:22px;z-index:45;display:flex;overflow:hidden;border-radius:13px;background:#fff;box-shadow:0 14px 34px rgba(23,48,45,.2);border:1px solid var(--line)}.float-bar a{min-height:48px;padding:12px 16px;display:flex;align-items:center;font-size:14px;font-weight:800}.float-bar a:first-child{color:var(--ink)}.float-bar a:last-child{background:var(--green);color:#fff}
@media(max-width:1024px){.navlinks{gap:2px}.navlinks a{padding:9px 8px}.solution-item{grid-template-columns:255px 1fr}.page-head-grid,.flow-grid,.faq-grid{gap:32px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.metrics-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,1240px)}.topbar-inner{height:auto;min-height:36px;padding:7px 0}.topbar-right{display:none}.nav{height:68px}.nav>.btn{display:none}.menu-btn{display:block;flex:0 0 44px}.navlinks{position:fixed;z-index:60;left:16px;right:16px;top:76px;display:none;padding:14px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px}.page-head{padding:42px 0}.page-head-grid,.range-grid,.flow-grid,.faq-grid,.consult-box{grid-template-columns:1fr}.page-head-grid{gap:23px}.application-note{padding:19px}section{padding:65px 0}.solution-item{grid-template-columns:1fr}.solution-item img{height:190px}.solution-content{padding:23px}.role-list{grid-template-columns:1fr 1fr}.route-board{min-height:330px}.metrics-grid,.implement-grid{grid-template-columns:1fr 1fr}.faq-consult{padding-bottom:104px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column}.float-bar{left:0;right:0;bottom:0;border-radius:0;justify-content:center}.float-bar a{flex:1;justify-content:center}.consult-form{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body{font-size:15px}.logo{font-size:17px}.logo i{width:24px;height:24px}.page-head h1{font-size:34px}.section-title{font-size:28px}.role-list,.metrics-grid,.implement-grid,.footer-grid,.consult-form{grid-template-columns:1fr}.solution-content h3{font-size:22px}.range-panel,.role-panel,.route-board{padding:22px}.node{font-size:11px;padding:6px}.node.two{right:3%}.matrix th,.matrix td{padding:14px 16px}.consult-box{padding:24px}.footer-bottom{padding-bottom:48px}.topbar-inner span{font-size:12px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category3 */
:root{--green:#087e72;--green-dark:#05675e;--ink:#17302d;--muted:#5e716d;--cream:#faf8f3;--mint:#edf6f2;--amber:#e99b42;--line:#d8e5df;--white:#fff;--shadow:0 14px 38px rgba(23,48,45,.09);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 48px));margin:0 auto}
.topbar{background:var(--ink);color:#dcece7;font-size:13px}.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}.topbar a{color:#e6f4ef}.topbar-right{display:flex;gap:18px;align-items:center}.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,48,45,.08);border-color:var(--line)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{font-weight:800;font-size:20px;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}.logo i{display:inline-flex;width:27px;height:27px;margin-right:7px;vertical-align:-6px;border-radius:9px;background:var(--green);position:relative}.logo i:before,.logo i:after{content:"";position:absolute;border-radius:50%;background:#fff}.logo i:before{width:7px;height:7px;left:6px;top:6px}.logo i:after{width:7px;height:7px;right:5px;bottom:5px}.navlinks{display:flex;align-items:center;gap:7px}.navlinks a{padding:10px 13px;border-radius:9px;color:#38504b;font-size:15px;transition:.2s}.navlinks a:hover,.navlinks a.active{background:#dff0e9;color:var(--green-dark)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 19px;border-radius:11px;border:1px solid transparent;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(8,126,114,.2)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green-dark)}.btn-outline{border-color:#a9c6bd;background:#fff;color:var(--ink)}.btn-outline:hover{background:var(--mint)}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(233,155,66,.55);outline-offset:3px}
.page-hero{position:relative;padding:56px 0 62px;background:linear-gradient(115deg,#e6f3ed 0%,#f8f3e9 56%,#e5f0eb 100%);border-bottom:1px solid var(--line);overflow:hidden}.page-hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(8,126,114,.16);border-radius:48% 52% 60% 40%;right:-130px;top:-190px;transform:rotate(-26deg)}.breadcrumb{position:relative;z-index:1;display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:14px}.breadcrumb b{color:var(--green)}.page-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:end;margin-top:28px}.page-hero h1{font-size:clamp(33px,4.5vw,52px);letter-spacing:-1.6px;line-height:1.22;margin:0 0 15px}.page-hero p{max-width:700px;color:#49625d;margin:0;font-size:17px}.route-card{padding:22px;background:rgba(255,255,255,.82);border:1px solid rgba(8,126,114,.18);border-radius:18px;box-shadow:var(--shadow)}.route-card h2{font-size:15px;margin:0 0 13px}.route-line{display:flex;align-items:center;gap:7px;color:var(--green);font-weight:800;font-size:13px}.route-line span{width:11px;height:11px;background:var(--amber);border:3px solid #fff;border-radius:50%;box-shadow:0 0 0 2px var(--amber)}.route-line i{height:2px;flex:1;background:repeating-linear-gradient(90deg,var(--green) 0 9px,transparent 9px 14px)}.filter-strip{padding:22px 0;background:#fff;border-bottom:1px solid var(--line)}.filter-wrap{display:flex;align-items:center;gap:17px;flex-wrap:wrap}.filter-label{font-weight:800}.tag{display:inline-flex;align-items:center;padding:6px 11px;background:var(--mint);border:1px solid #d1e6dc;border-radius:8px;color:#236358;font-size:13px;font-weight:700}.tag.amber{color:#94560e;background:#f9eddd;border-color:#efd5b3}
section{padding:88px 0}.section-kicker{font-size:13px;color:var(--green);font-weight:800;letter-spacing:.08em}.section-title{font-size:clamp(28px,3.3vw,40px);line-height:1.3;letter-spacing:-1px;margin:9px 0 13px}.section-lead{max-width:760px;color:var(--muted);margin:0}.scene-grid{display:grid;grid-template-columns:1.15fr .85fr .95fr;gap:20px;margin-top:38px}.scene-card{position:relative;min-height:270px;padding:25px;display:flex;flex-direction:column;justify-content:flex-end;border-radius:20px;overflow:hidden;color:#fff;background:var(--ink);isolation:isolate;transition:.25s}.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.scene-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,42,38,.91),rgba(14,42,38,.12));z-index:-1}.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}.scene-card.tall{min-height:560px;grid-row:span 2}.scene-card h3{font-size:24px;line-height:1.3;margin:10px 0 7px}.scene-card p{font-size:14px;line-height:1.65;color:#e4f1ec;margin:0}.scene-card .tag{align-self:flex-start;background:rgba(255,255,255,.88);border:0}.more-link{display:inline-flex;align-items:center;gap:8px;margin-top:28px;color:var(--green);font-weight:800}.more-link:hover{color:var(--green-dark)}.chain{margin-top:38px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}.chain-item{position:relative;padding:27px 25px;border-right:1px solid var(--line)}.chain-item:last-child{border:0}.chain-num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--green);color:#fff;font-weight:800}.chain-item h3{font-size:19px;margin:15px 0 7px}.chain-item p{font-size:14px;color:var(--muted);margin:0}.role-area{background:var(--mint);overflow:hidden}.role-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:62px;align-items:center}.role-map{position:relative;min-height:400px;border-radius:24px;background:var(--ink);padding:30px;overflow:hidden}.role-map:before{content:"";position:absolute;inset:0;opacity:.25;background-image:linear-gradient(rgba(255,255,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.13) 1px,transparent 1px);background-size:34px 34px}.hub{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:112px;height:112px;border-radius:50%;display:grid;place-items:center;text-align:center;background:var(--green);border:8px solid #63b8aa;color:#fff;font-weight:800;line-height:1.35;z-index:2}.node{position:absolute;z-index:2;padding:9px 13px;background:#fff;border-radius:10px;color:var(--ink);font-size:14px;font-weight:800;box-shadow:0 8px 20px rgba(0,0,0,.2)}.node:after{content:"";position:absolute;width:75px;border-top:1px dashed #8fcec2;top:50%}.node.n1{top:62px;left:38px}.node.n1:after{left:100%;transform:rotate(25deg);transform-origin:left}.node.n2{top:65px;right:35px}.node.n2:after{right:100%;transform:rotate(-28deg);transform-origin:right}.node.n3{bottom:55px;left:38px}.node.n3:after{left:100%;transform:rotate(-26deg);transform-origin:left}.node.n4{bottom:55px;right:35px}.node.n4:after{right:100%;transform:rotate(25deg);transform-origin:right}.role-list{display:grid;gap:12px}.role-list article{padding:18px 19px;background:#fff;border:1px solid var(--line);border-radius:15px}.role-list h3{margin:0 0 4px;font-size:18px}.role-list p{margin:0;color:var(--muted);font-size:14px}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:37px}.compare-card{padding:30px;border:1px solid var(--line);border-radius:20px;background:#fff}.compare-card.highlight{background:#e2f1ea;border-color:#94c9ba}.compare-card h3{font-size:22px;margin:0 0 16px}.compare-card ul{list-style:none;margin:0;padding:0}.compare-card li{padding:12px 0;border-top:1px solid rgba(23,48,45,.11);color:#455d58}.compare-card li:before{content:"•";color:var(--amber);font-size:22px;line-height:0;margin-right:10px}.conditions{background:#f4efe6}.condition-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:36px}.condition{padding:25px 21px;background:#fff;border-radius:17px;border:1px solid #e8dcc8}.condition b{display:block;color:var(--green);font-size:13px}.condition h3{font-size:19px;margin:10px 0 6px}.condition p{font-size:14px;color:var(--muted);margin:0}.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:65px;align-items:start}.faq-intro{position:sticky;top:110px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;padding:20px 4px;text-align:left;background:transparent;border:0;color:var(--ink);font-weight:800;font-size:17px;display:flex;justify-content:space-between;gap:20px}.faq-q span{font-size:24px;color:var(--green);transition:.2s}.faq-q[aria-expanded="true"] span{transform:rotate(45deg)}.faq-a{display:none;padding:0 4px 21px;color:var(--muted);font-size:15px}.faq-a.open{display:block}.consult{padding:0 0 96px}.consult-box{position:relative;overflow:hidden;background:var(--green);color:#fff;border-radius:24px;padding:48px 52px;display:grid;grid-template-columns:.94fr 1.06fr;gap:50px}.consult-box:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(255,255,255,.2);border-radius:48%;right:-120px;bottom:-230px}.consult h2{position:relative;z-index:1;font-size:34px;line-height:1.35;margin:0 0 13px}.consult p{position:relative;z-index:1;color:#dff5ee;margin:0}.form-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:5px;font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;background:#fff;border:1px solid #fff;border-radius:10px;padding:11px 12px;color:var(--ink);outline:none}.field textarea{resize:vertical;min-height:76px}.field.full{grid-column:1/-1}.form-note{font-size:12px;color:#d9f0e9;margin:0}.form-status{display:none;padding:9px 12px;background:#e5f6ee;color:#075d51;border-radius:8px;font-size:14px;font-weight:700}.site-footer{background:var(--ink);color:#c5d8d2;padding:64px 0 24px;position:relative}.site-footer:before{content:"";position:absolute;left:0;right:0;top:20px;border-top:1px dashed rgba(174,221,208,.22)}.footer-grid{display:grid;grid-template-columns:1.45fr .8fr 1fr 1fr;gap:36px}.site-footer .logo{color:#fff}.site-footer p{font-size:14px;color:#b8cdc6}.site-footer h3{font-size:15px;color:#fff;margin:0 0 15px}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{font-size:14px;margin:7px 0}.site-footer a:hover{color:#8ed6c6}.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.13);padding-top:21px;margin-top:42px;font-size:13px}.fixed-bar{position:fixed;z-index:45;right:20px;bottom:20px;display:flex;gap:8px;padding:8px;background:rgba(255,255,255,.93);border:1px solid var(--line);border-radius:15px;box-shadow:0 12px 30px rgba(23,48,45,.16);backdrop-filter:blur(10px)}.fixed-bar a{min-height:42px;padding:9px 13px;border-radius:9px;font-size:14px;font-weight:800}.fixed-bar a:first-child{color:var(--green);background:var(--mint)}.fixed-bar a:last-child{color:#fff;background:var(--green)}
@media(max-width:1024px){.navlinks{gap:1px}.navlinks a{padding:9px 8px}.page-hero-grid,.role-layout,.faq-layout{gap:32px}.scene-grid{grid-template-columns:1fr 1fr}.scene-card.tall{min-height:420px;grid-row:span 1}.condition-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,1240px)}.topbar-right{display:none}.topbar-inner{justify-content:center}.nav{height:68px}.nav>.btn{display:none}.menu-btn{display:block;flex:0 0 auto}.navlinks{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px}.page-hero{padding:40px 0 45px}.page-hero-grid,.role-layout,.faq-layout,.consult-box{grid-template-columns:1fr}.route-card{margin-top:2px}section{padding:64px 0}.chain{grid-template-columns:1fr 1fr}.chain-item:nth-child(2){border-right:0}.chain-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.faq-intro{position:static}.consult{padding-bottom:82px}.consult-box{padding:34px 25px}.footer-grid{grid-template-columns:1fr 1fr}.fixed-bar{left:10px;right:10px;bottom:10px;justify-content:center}.fixed-bar a{flex:1;text-align:center}}
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/* roulang page: category4 */
:root{--green:#087e72;--green-dark:#05675e;--ink:#17302d;--muted:#5e716d;--cream:#faf8f3;--mint:#edf6f2;--amber:#e99b42;--line:#d8e5df;--white:#fff;--shadow:0 14px 38px rgba(23,48,45,.09);--radius:20px}
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