/* roulang page: index */
:root{--ink:#17221f;--muted:#65716d;--paper:#f7f5ef;--card:#fff;--line:#dfe4dc;--green:#9bc54a;--teal:#168d7b;--orange:#e58b3d;--dark:#17231f;--radius:18px;--shadow:0 12px 35px rgba(25,42,34,.08);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;width:100%;object-fit:cover}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.container{width:min(var(--max),calc(100% - 48px));margin:auto}.topline{height:54px;background:var(--dark);color:#dce6dc}.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff}.brand b{color:var(--green)}.toplinks{display:flex;gap:24px;align-items:center;font-size:13px}.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{display:flex;gap:4px;align-items:center}.nav a{padding:10px 13px;font-size:14px;color:#475550;border-bottom:3px solid transparent}.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}.menu-btn{display:none;background:none;font-size:26px;color:var(--ink)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}.btn-primary{background:var(--green);color:#17221f}.btn-dark{background:var(--dark);color:#fff}.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}.hero{min-height:620px;background:linear-gradient(90deg,rgba(18,31,28,.88),rgba(18,31,28,.35)),url("/assets/images/backpic/back-1.webp") center/cover;display:flex;align-items:center;color:#fff}.hero-inner{width:min(var(--max),calc(100% - 48px));margin:auto}.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}.hero .eyebrow{background:rgba(205,235,137,.18);color:#d9f497}.hero h1{font-size:clamp(36px,5vw,68px);line-height:1.18;max-width:760px;margin:20px 0 18px;letter-spacing:-.04em}.hero p{max-width:650px;color:#e4ebe1;font-size:17px}.hero-actions{display:flex;gap:12px;margin-top:28px}.dots{display:flex;gap:8px;margin-top:42px}.dot{width:32px;height:5px;background:#849086;border-radius:4px}.dot.active{background:var(--green)}section{padding:92px 0}.section-head{max-width:730px;margin-bottom:34px}.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px}.section-head p{color:var(--muted);margin:0}.intro{background:#fff}.split{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:center}.media-frame{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}.media-frame img{min-height:390px}.media-note{position:absolute;bottom:18px;left:18px;background:#fff;padding:12px 16px;border-radius:12px;font-size:13px}.facts{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.fact{border:1px solid var(--line);background:#f8faf5;border-radius:10px;padding:9px 13px;font-size:13px}.matrix{background:#eef1e9}.grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.service,.advantage,.product,.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}.service:hover,.advantage:hover,.product:hover,.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.icon{font-size:25px;color:var(--teal);margin-bottom:8px}.service h3,.advantage h3,.product h3{margin:0 0 6px;font-size:19px}.service p,.advantage p,.product p,.news-card p{margin:0;color:var(--muted);font-size:14px}.text-link{display:inline-block;margin-top:16px;color:var(--teal);font-weight:700;font-size:14px}.adv-layout{display:grid;grid-template-columns:3fr 9fr;gap:42px;align-items:start}.score{background:var(--dark);color:#fff;border-radius:var(--radius);padding:28px;position:sticky;top:145px}.score strong{font-size:44px;color:var(--green);display:block}.score span{font-size:13px;color:#c5d0c8}.progress{height:7px;background:#3b4942;border-radius:4px;margin:16px 0 4px}.progress i{display:block;background:var(--green);height:100%;border-radius:4px}.process{background:#fff}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0}.step{padding:20px 24px;border-top:3px solid var(--green);position:relative}.step:not(:last-child):after{content:"→";position:absolute;right:-7px;top:20px;color:var(--orange);font-size:22px}.num{font-size:13px;color:var(--teal);font-weight:800}.step h3{font-size:17px;margin:8px 0}.step p{font-size:13px;color:var(--muted);margin:0}.products{background:#f0ede6}.product{padding:0;overflow:hidden}.product img{height:210px}.product-body{padding:20px}.tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}.tag{background:#edf3e6;color:#557119}.darkcase{background:var(--dark);color:#fff}.darkcase .section-head p{color:#b9c8be}.case-wall{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:15px}.case{min-height:250px;border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;justify-content:end;background-size:cover;background-position:center;overflow:hidden;position:relative}.case:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(0,0,0,.8))}.case>*{position:relative}.case h3{margin:6px 0;font-size:21px}.case p{margin:0;color:#d7e0d9;font-size:13px}.story{display:grid;grid-template-columns:1fr 1.35fr;gap:50px;align-items:center}.story img{height:330px;border-radius:var(--radius)}.quote{font-size:26px;line-height:1.5;margin:0 0 18px}.quote:before{content:"“";color:var(--orange);font-size:64px;line-height:0;vertical-align:-25px;margin-right:8px}.role{color:var(--teal);font-weight:700}.stats{background:#e5edd8;padding:55px 0}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.stat{border-left:3px solid var(--teal);padding-left:20px}.stat strong{display:block;font-size:35px;color:var(--ink)}.stat small{color:var(--muted)}.review{display:grid;grid-template-columns:2fr 1fr;gap:20px}.review-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px}.stars{color:#d99536;letter-spacing:4px}.review-main h3{font-size:25px;margin:12px 0}.review-side{display:grid;gap:12px}.review-side div{padding:18px;background:#eef3e8;border-radius:12px;font-size:14px}.news{background:#fff}.news-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}.news-card{padding:0;overflow:hidden}.news-card img{height:160px}.news-card div{padding:20px}.date{font-size:12px;color:var(--orange);font-weight:700}.ecosystem{padding:60px 0}.eco-list{display:flex;flex-wrap:wrap;gap:12px}.eco-list span{padding:13px 20px;border:1px solid var(--line);background:#fff;border-radius:10px;color:#50605a}.faq{background:#f0ede6}.faq-list{max-width:850px}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none}.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}.faq details[open] summary:after{content:"−"}.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}.assure{padding:50px 0;background:#fff}.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.assure h3{font-size:17px;margin:8px 0}.assure p{margin:0;color:var(--muted);font-size:13px}.contact{background:var(--teal);color:#fff}.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:start}.contact p{color:#d9efea}.contact-info{margin-top:30px;line-height:2;color:#e8f5f0}.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9}.field textarea{min-height:100px;resize:vertical}.form .btn{grid-column:1/-1}.form-message{grid-column:1/-1;color:var(--teal);font-size:14px;display:none}.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}.footer h3{color:#fff;margin:0 0 12px;font-size:16px}.footer p,.footer a{font-size:13px;color:#afbeb3}.footer a:hover{color:var(--green)}.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between}
@media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 7px;font-size:12px}.split,.story,.contact-grid{gap:30px}.steps{grid-template-columns:repeat(3,1fr);row-gap:20px}.step:nth-child(3):after{display:none}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container,.hero-inner{width:min(100% - 40px,620px)}.toplinks{display:none}.navline{height:64px}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px #17221f20;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px;border-bottom:1px solid var(--line)}.menu-btn{display:block}.navline .btn{display:none}.hero{min-height:570px}.hero p{font-size:15px}.split,.adv-layout,.story,.review,.contact-grid{grid-template-columns:1fr}.score{position:static}.grid6,.news-grid{grid-template-columns:1fr 1fr}.case-wall{grid-template-columns:1fr 1fr}.case:first-child{grid-column:1/-1}.stat-grid{grid-template-columns:1fr 1fr}.assure-grid{grid-template-columns:1fr 1fr}section{padding:65px 0}}
@media(max-width:520px){.grid6,.news-grid,.case-wall,.steps,.assure-grid,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:36px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.case:first-child{grid-column:auto}.stat strong{font-size:28px}.form{grid-template-columns:1fr}.field.full,.form .btn,.form-message{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:8px}.media-frame img{min-height:280px}}

/* roulang page: category2 */
:root{--ink:#17221f;--muted:#65716d;--paper:#f7f5ef;--card:#fff;--line:#dfe4dc;--green:#9bc54a;--teal:#168d7b;--orange:#e58b3d;--dark:#17231f;--radius:18px;--shadow:0 12px 35px rgba(25,42,34,.08);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:52px;background:var(--dark);color:#c8d3ca;font-size:13px}
.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff;white-space:nowrap}
.brand b{color:var(--green)}
.toplinks{display:flex;gap:25px;align-items:center}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;gap:0;align-items:center}
.nav a{padding:8px 7px;font-size:12px;color:#475550;border-bottom:3px solid transparent;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-dark{background:var(--dark);color:#fff}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.page-banner{padding:72px 0 76px;background:linear-gradient(90deg,rgba(23,34,31,.92),rgba(23,34,31,.63)),url("/assets/images/backpic/back-4.webp") center/cover;color:#fff}
.banner-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
.page-banner .eyebrow{background:rgba(205,235,137,.18);color:#d9f497}
.page-banner h1{font-size:clamp(34px,5vw,60px);line-height:1.2;margin:18px 0 12px;letter-spacing:-.04em}
.page-banner p{color:#e4ebe1;max-width:680px;margin:0;font-size:17px}
.banner-spec{border-left:3px solid var(--green);padding:8px 0 8px 22px}
.banner-spec strong{display:block;font-size:28px;color:var(--green)}
.banner-spec span{color:#d0dbd1;font-size:13px}
section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px}
.section-head p{color:var(--muted);margin:0}
.list-layout{display:grid;grid-template-columns:1fr 330px;gap:25px;align-items:start}
.position-list{display:grid;gap:14px}
.position-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:23px 26px;display:grid;grid-template-columns:62px 1fr auto;gap:20px;align-items:center;transition:.2s}
.position-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bdd28c}
.item-number{font-size:28px;font-weight:800;color:var(--teal)}
.position-item h3{margin:0 0 5px;font-size:19px}
.position-item p{margin:0;color:var(--muted);font-size:14px}
.side-note{background:#e9f0df;border-radius:var(--radius);padding:26px;position:sticky;top:95px}
.side-note h3{margin:0 0 12px;font-size:20px}
.side-note ul{padding:0;margin:0;list-style:none}
.side-note li{border-top:1px solid #cbd8bc;padding:12px 0;font-size:14px}
.side-note li:before{content:"●";color:var(--orange);margin-right:9px;font-size:10px}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scene{min-height:185px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:14px}
.scene:nth-child(2){background:#edf3e6}
.scene:nth-child(3){background:#f8eadc}
.scene:nth-child(4){background:#e6f1ee}
.scene h3{margin:30px 0 5px;font-size:18px}
.scene p{margin:0;color:var(--muted);font-size:13px}
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-row>div{padding:16px 20px;font-size:14px;border-right:1px solid var(--line)}
.compare-row>div:last-child{border-right:0}
.compare-head{background:var(--dark);color:#fff;font-weight:700}
.compare-head>div{color:#fff}
.process{background:#f0ede6}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.step{position:relative;padding:0 25px 0 0}
.step:not(:last-child):after{content:"";position:absolute;top:22px;right:15px;width:calc(100% - 55px);height:1px;background:#b9c8b5}
.step-no{width:44px;height:44px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;position:relative;z-index:1}
.step h3{margin:18px 0 5px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px}
.step .tag{margin-top:13px}
.faq{background:#f0ede6}
.faq-list{max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.assure{background:var(--dark);color:#fff}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure-card{border-left:2px solid var(--green);padding-left:18px}
.assure-card h3{margin:0 0 6px;font-size:18px}
.assure-card p{margin:0;color:#b9c8be;font-size:13px}
.contact{background:#e7eee0}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:55px;align-items:start}
.contact h2{font-size:38px;line-height:1.3;margin:0 0 15px}
.contact p{color:var(--muted)}
.contact-info{margin-top:28px;display:grid;gap:8px;font-size:14px}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9;min-width:0}
.field textarea{min-height:105px;resize:vertical}
.field.full,.form .btn,.form-message{grid-column:1/-1}
.form .btn{justify-self:start}
.form-message{color:var(--teal);font-size:14px;display:none}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1100px){.nav a{padding:8px 5px;font-size:11px}.toplinks{gap:12px;font-size:12px}.container{width:min(var(--max),calc(100% - 40px))}}
@media(max-width:900px){.banner-grid,.list-layout,.contact-grid{grid-template-columns:1fr}.side-note{position:static}.scene-grid{grid-template-columns:1fr 1fr}.assure-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.navline .btn{display:none}.menu-btn{display:block}.nav{display:none;position:absolute;left:0;right:0;top:70px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px #17221f20;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}}
@media(max-width:600px){.container{width:calc(100% - 40px)}.topline{height:auto;padding:10px 0}.toplinks span:not(:last-child){display:none}.topline .container{gap:15px}.toplinks{font-size:11px}.page-banner{padding:55px 0}.page-banner h1{font-size:36px}.page-banner p{font-size:15px}.position-item{grid-template-columns:42px 1fr;padding:19px}.position-item .text-link{grid-column:2;margin-top:0}.scene-grid,.assure-grid,.footer-grid{grid-template-columns:1fr}.compare{border-radius:12px}.compare-row{grid-template-columns:1fr}.compare-row>div{border-right:0;border-bottom:1px solid var(--line);padding:11px 16px}.compare-row>div:first-child{font-weight:700;background:#f5f8ef}.compare-head{display:none}.timeline{display:block}.step{padding:0 0 32px 64px}.step:not(:last-child):after{width:1px;height:100%;left:22px;top:44px;right:auto}.step-no{position:absolute;left:0;top:0}.contact h2{font-size:30px}.form{grid-template-columns:1fr;padding:20px}.field.full,.form .btn,.form-message{grid-column:auto}.form .btn{width:100%}.copyright{display:block;line-height:2}.copyright span{display:block;margin-top:8px}section{padding:62px 0}}

/* roulang page: category1 */
:root{
  --ink:#17221f;
  --muted:#65716d;
  --paper:#f7f5ef;
  --card:#fff;
  --line:#dfe4dc;
  --green:#9bc54a;
  --teal:#168d7b;
  --orange:#e58b3d;
  --dark:#17231f;
  --soft:#edf3e6;
  --sand:#eee9df;
  --radius:18px;
  --shadow:0 12px 35px rgba(25,42,34,.08);
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
body.menu-lock{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:46px;background:var(--dark);color:#bfcac1;font-size:12px}
.topline .container,.navline .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff;white-space:nowrap}
.brand b{color:var(--green)}
.toplinks{display:flex;align-items:center;gap:24px}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;gap:2px;align-items:center}
.nav a{padding:10px 9px;font-size:13px;color:#475550;border-bottom:3px solid transparent;transition:.2s}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:transform .2s,background .2s,border-color .2s;color:var(--ink);border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,.menu-btn:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-primary:hover{background:#acd75c}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#263a31}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.btn-light:hover{border-color:var(--teal);color:var(--teal)}
.page-banner{position:relative;overflow:hidden;padding:76px 0 78px;background:
linear-gradient(100deg,rgba(23,35,31,.94),rgba(23,35,31,.72)),
url("/assets/images/backpic/back-4.webp") center/cover;color:#fff}
.page-banner:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(155,197,74,.4);border-radius:50%;right:8%;top:-120px}
.banner-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:50px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
.page-banner .eyebrow{background:rgba(205,235,137,.18);color:#d9f497}
.page-banner h1{font-size:clamp(34px,5vw,60px);line-height:1.2;letter-spacing:-.04em;margin:18px 0 14px}
.page-banner p{max-width:700px;color:#dce5dd;font-size:16px;margin:0}
.banner-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.metric-box{border-left:3px solid var(--green);padding:13px 16px;background:rgba(255,255,255,.08)}
.metric-box strong{display:block;color:#fff;font-size:24px;line-height:1.2}
.metric-box span{display:block;color:#b9c8be;font-size:12px;margin-top:5px}
section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px;letter-spacing:-.025em}
.section-head p{color:var(--muted);margin:0}
.kicker{color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:8px}
.intro-section{background:#fff}
.intro-grid{display:grid;grid-template-columns:5fr 7fr;gap:54px;align-items:center}
.media-frame{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
.media-frame img{min-height:390px}
.media-note{position:absolute;bottom:18px;left:18px;background:#fff;padding:12px 16px;border-radius:12px;font-size:13px;box-shadow:0 8px 20px rgba(0,0,0,.1)}
.intro-copy h2{font-size:clamp(28px,3.5vw,44px);line-height:1.28;margin:0 0 16px}
.intro-copy p{color:var(--muted);margin:0 0 20px}
.capability-tags{display:flex;flex-wrap:wrap;gap:9px;margin:24px 0}
.capability-tags span{border:1px solid var(--line);background:var(--paper);padding:8px 12px;border-radius:9px;color:#4d5e57;font-size:13px}
.spec-note{display:flex;gap:12px;align-items:flex-start;background:#f1f5eb;border-left:3px solid var(--green);padding:15px 16px;margin:22px 0 25px;font-size:14px;color:#42534b}
.spec-note strong{color:var(--ink)}
.catalog-section{background:var(--paper)}
.catalog-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
.device-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:grid;grid-template-columns:58px 1fr;gap:18px;min-height:190px;transition:.2s}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c7d6bd}
.device-card.featured{grid-row:span 2;background:var(--dark);color:#fff;border-color:var(--dark);display:block;padding:0;overflow:hidden}
.device-card.featured img{height:240px}
.device-card.featured .device-body{padding:25px}
.device-card.featured p{color:#b9c8be}
.device-card h3{font-size:20px;line-height:1.35;margin:0 0 7px}
.device-card p{font-size:14px;color:var(--muted);margin:0}
.device-icon{width:52px;height:52px;border-radius:14px;background:#e9f2d5;color:#557119;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px}
.device-card:nth-child(3) .device-icon{background:#f8eadb;color:#a45c23}
.device-card:nth-child(4) .device-icon{background:#e2f2ef;color:var(--teal)}
.text-link{display:inline-block;margin-top:15px;color:var(--teal);font-weight:700;font-size:14px}
.device-card.featured .text-link{color:#d9f497}
.scene-section{background:#eee9df}
.scene-layout{display:grid;grid-template-columns:290px 1fr;gap:45px;align-items:start}
.scene-intro{position:sticky;top:105px}
.scene-intro h2{font-size:34px;line-height:1.3;margin:0 0 14px}
.scene-intro p{color:var(--muted);font-size:14px}
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.scene-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:21px;min-height:158px}
.scene-item .scene-no{color:var(--orange);font-size:13px;font-weight:800}
.scene-item h3{font-size:18px;margin:6px 0}
.scene-item p{color:var(--muted);font-size:13px;margin:0}
.scene-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:13px}
.scene-tags span{font-size:11px;color:#557119;background:#edf3e6;border-radius:20px;padding:3px 8px}
.spec-section{background:#fff}
.spec-layout{display:grid;grid-template-columns:1fr 1.55fr;gap:48px;align-items:start}
.spec-aside{background:var(--dark);color:#fff;border-radius:var(--radius);padding:29px;position:sticky;top:105px}
.spec-aside h2{font-size:30px;line-height:1.35;margin:0 0 12px}
.spec-aside p{color:#b9c8be;font-size:14px;margin:0 0 24px}
.data-points{display:grid;gap:12px}
.data-point{border-top:1px solid #3a4b42;padding-top:12px}
.data-point strong{display:block;color:var(--green);font-size:22px}
.data-point span{font-size:12px;color:#bdc9c0}
.compare-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-row > div{padding:15px 16px;font-size:13px;border-right:1px solid var(--line)}
.compare-row > div:last-child{border-right:0}
.compare-row.head{background:#edf3e6;color:#557119;font-weight:800}
.compare-row:not(.head):hover{background:#fbfcf9}
.compare-row strong{font-size:14px}
.process-section{background:var(--paper)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:22px}
.timeline:before{content:"";position:absolute;top:27px;left:8%;right:8%;height:2px;background:#cbd7c5}
.timeline-step{position:relative;z-index:1}
.step-number{width:56px;height:56px;background:var(--green);border:7px solid var(--paper);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#26331d;margin-bottom:18px}
.timeline-step h3{font-size:19px;margin:0 0 7px}
.timeline-step p{color:var(--muted);font-size:13px;margin:0}
.timeline-step .tag{margin-top:13px}
.faq{background:#f0ede6}
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.faq-intro h2{font-size:35px;line-height:1.3;margin:0 0 14px}
.faq-intro p{font-size:14px;color:var(--muted);margin:0}
.faq-list{max-width:850px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none;min-height:56px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px;line-height:1}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.assurance-section{padding:35px 0;background:var(--dark);color:#fff}
.assurance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.assurance-item{display:flex;gap:13px;align-items:flex-start}
.assurance-icon{width:38px;height:38px;flex:0 0 38px;border:1px solid #6d8b56;color:var(--green);border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800}
.assurance-item h3{font-size:16px;margin:0 0 4px}
.assurance-item p{font-size:12px;color:#b9c8be;margin:0}
.contact-section{background:#e9efe4}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:54px;align-items:start}
.contact-copy h2{font-size:clamp(29px,3vw,43px);line-height:1.28;margin:0 0 15px}
.contact-copy p{color:var(--muted);margin:0 0 25px}
.contact-list{display:grid;gap:12px;color:#52615a;font-size:14px}
.contact-list strong{display:inline-block;color:var(--ink);min-width:78px}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9;color:var(--ink);min-height:46px}
.field textarea{min-height:112px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9aa69f}
.form .btn{grid-column:1/-1;margin-top:4px}
.form-message{grid-column:1/-1;color:var(--teal);font-size:14px;display:none;background:#edf7ed;padding:9px 12px;border-radius:8px}
.form-message.show{display:block}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer p{margin:12px 0 0}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between;gap:20px}
.copyright a{font-size:12px}
@media (max-width:1280px){
  .nav a{padding-left:6px;padding-right:6px;font-size:12px}
}
@media (max-width:1024px){
  .toplinks span:nth-child(1){display:none}
  .banner-inner{grid-template-columns:1fr}
  .banner-metrics{max-width:520px}
  .scene-layout,.spec-layout,.faq-layout{grid-template-columns:1fr}
  .scene-intro,.spec-aside{position:static}
  .assurance-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{width:min(100% - 40px,620px)}
  .topline{height:42px}
  .topline .brand{font-size:18px}
  .toplinks{gap:10px;font-size:11px}
  .navline{height:64px}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px rgba(23,34,31,.12);flex-direction:column;align-items:stretch}
  .nav.open{display:flex}
  .nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}
  .menu-btn{display:block}
  .navline .btn{display:none}
  .page-banner{padding:58px 0}
  .page-banner h1{font-size:38px}
  section{padding:65px 0}
  .intro-grid,.contact-grid{grid-template-columns:1fr;gap:30px}
  .media-frame img{min-height:280px}
  .catalog-grid{grid-template-columns:1fr}
  .device-card.featured{grid-row:auto}
  .scene-list{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;gap:25px;padding-left:18px}
  .timeline:before{top:8px;bottom:8px;left:44px;width:2px;height:auto;right:auto}
  .timeline-step{display:grid;grid-template-columns:56px 1fr;column-gap:18px;align-items:start}
  .step-number{grid-row:span 3;margin:0}
  .timeline-step h3,.timeline-step p,.timeline-step .tag{grid-column:2}
  .timeline-step h3{margin-top:5px}
  .timeline-step .tag{justify-self:start}
  .compare-wrap{overflow:visible;border:0}
  .compare-row{grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:#fff}
  .compare-row.head{display:none}
  .compare-row > div{border-right:0;border-bottom:1px solid var(--line);padding:12px}
  .compare-row > div:nth-child(odd){background:#f1f5eb;font-weight:700}
  .compare-row > div:nth-child(3),.compare-row > div:nth-child(4){border-bottom:0}
  .form{grid-template-columns:1fr}
  .field.full,.form .btn,.form-message{grid-column:auto}
  .copyright{flex-direction:column;gap:8px}
}
@media (max-width:576px){
  .container{width:calc(100% - 40px)}
  .toplinks span{display:none}
  .page-banner h1{font-size:34px}
  .page-banner p{font-size:15px}
  .banner-metrics{grid-template-columns:1fr 1fr;gap:8px}
  .metric-box{padding:10px}
  .metric-box strong{font-size:20px}
  .intro-copy h2,.scene-intro h2,.spec-aside h2,.faq-intro h2{font-size:29px}
  .device-card{grid-template-columns:48px 1fr;padding:20px;gap:13px}
  .device-icon{width:46px;height:46px}
  .assurance-grid,.footer-grid{grid-template-columns:1fr}
  .form{padding:20px}
}
@media (max-width:375px){
  .container{width:calc(100% - 32px)}
  .brand{font-size:17px!important}
  .page-banner h1{font-size:31px}
  .banner-metrics{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{--ink:#17221f;--muted:#65716d;--paper:#f7f5ef;--card:#fff;--line:#dfe4dc;--green:#9bc54a;--teal:#168d7b;--orange:#e58b3d;--dark:#17231f;--radius:18px;--shadow:0 12px 35px rgba(25,42,34,.08);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:54px;background:var(--dark);color:#d3ded5}
.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff}
.brand b{color:var(--green)}
.toplinks{display:flex;gap:24px;font-size:13px;color:#b8c7bd}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;gap:2px;align-items:center}
.nav a{padding:10px 8px;font-size:12px;color:#475550;border-bottom:3px solid transparent;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-dark{background:var(--dark);color:#fff}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.page-intro{padding:78px 0 62px;background:#e9eee5;border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:1fr 380px;gap:70px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
.page-intro h1{font-size:clamp(36px,5vw,64px);line-height:1.18;letter-spacing:-.04em;margin:18px 0 16px}
.page-intro p{max-width:720px;color:var(--muted);font-size:17px;margin:0}
.intro-panel{background:var(--dark);color:#fff;border-radius:var(--radius);padding:26px}
.intro-panel strong{display:block;color:var(--green);font-size:30px;line-height:1.2;margin-bottom:8px}
.intro-panel p{font-size:13px;color:#c5d2c8}
.panel-row{display:flex;justify-content:space-between;border-top:1px solid #405049;padding:12px 0 0;margin-top:14px;font-size:13px}
section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px}
.section-head p{color:var(--muted);margin:0}
.list-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:25px;align-items:start}
.tool-list{display:grid;gap:14px}
.tool-item{display:grid;grid-template-columns:110px 1fr auto;gap:22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;transition:.2s}
.tool-item:hover{box-shadow:var(--shadow);transform:translateX(3px)}
.tool-item img{height:96px;border-radius:12px}
.tool-item h3{margin:0 0 4px;font-size:19px}
.tool-item p{margin:0;color:var(--muted);font-size:14px}
.tool-item .tag{margin-top:8px}
.side-note{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:sticky;top:145px}
.side-note h3{margin-top:0;font-size:22px}
.side-note ul{padding:0;margin:20px 0;list-style:none}
.side-note li{border-bottom:1px solid var(--line);padding:12px 0;color:var(--muted);font-size:14px}
.side-note li:before{content:"✓";color:var(--teal);font-weight:bold;margin-right:9px}
.scenes{background:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.scene{min-height:180px;padding:23px;border:1px solid var(--line);border-radius:14px;background:#fbfcf9}
.scene:nth-child(2){background:#edf3e6}
.scene:nth-child(3){background:#f8eadb}
.scene h3{margin:0 0 8px;font-size:18px}
.scene p{margin:0;color:var(--muted);font-size:14px}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-card h3{margin:0;padding:19px 22px;background:#eef2e9;font-size:19px}
.compare-card dl{margin:0}
.compare-card dl div{display:flex;justify-content:space-between;gap:18px;padding:15px 22px;border-top:1px solid var(--line);font-size:14px}
.compare-card dt{color:var(--muted)}
.compare-card dd{margin:0;text-align:right;font-weight:700}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.timeline:before{content:"";position:absolute;top:25px;left:8%;right:8%;height:2px;background:#cbd7c9}
.step{position:relative;padding:0 18px;text-align:center}
.step-no{position:relative;z-index:1;width:52px;height:52px;margin:0 auto 18px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:800}
.step h3{font-size:18px;margin:0 0 8px}
.step p{margin:0;color:var(--muted);font-size:14px}
.faq{background:#f0ede6}
.faq-list{max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.trust-item{border-left:4px solid var(--green);padding:8px 18px;background:#fff}
.trust-item h3{font-size:17px;margin:0 0 5px}
.trust-item p{font-size:13px;color:var(--muted);margin:0}
.cta{background:var(--dark);color:#fff}
.cta-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
.cta h2{font-size:38px;line-height:1.3;margin:0 0 16px}
.cta p{color:#c5d2c8}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:14px;font-weight:700}
.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9}
.field textarea{min-height:100px;resize:vertical}
.field.full,.form .btn,.form-message{grid-column:1/-1}
.form-message{color:var(--teal);font-size:14px;display:none}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between}
@media(max-width:1100px){.nav a{padding:9px 5px;font-size:11px}.navline .btn{padding:0 14px}.intro-grid{gap:30px}.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 40px,620px)}.toplinks{display:none}.navline{height:64px}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px #17221f20;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}.menu-btn{display:block}.navline .btn{display:none}.intro-grid,.list-layout,.compare-wrap,.cta-grid{grid-template-columns:1fr}.side-note{position:static}.tool-item{grid-template-columns:82px 1fr}.tool-item .btn{grid-column:2;justify-self:start}.tool-item img{height:82px}.timeline{grid-template-columns:1fr;gap:25px}.timeline:before{top:24px;bottom:25px;left:26px;width:2px;height:auto;right:auto}.step{text-align:left;padding-left:72px}.step-no{position:absolute;left:0;top:0;margin:0}.trust{grid-template-columns:1fr 1fr}section{padding:65px 0}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:520px){.page-intro{padding:58px 0 48px}.page-intro h1{font-size:38px}.page-intro p{font-size:15px}.scene-grid,.trust,.footer-grid,.form{grid-template-columns:1fr}.tool-item{grid-template-columns:1fr}.tool-item img{height:160px}.tool-item .btn{grid-column:auto;width:100%}.cta h2{font-size:30px}.form .btn{grid-column:auto}.field.full,.form-message{grid-column:auto}}

/* roulang page: category4 */
:root{--ink:#17221f;--muted:#65716d;--paper:#f7f5ef;--card:#fff;--line:#dfe4dc;--green:#9bc54a;--teal:#168d7b;--orange:#e58b3d;--dark:#17231f;--radius:18px;--shadow:0 12px 35px rgba(25,42,34,.08);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:54px;background:var(--dark);color:#c8d3ca}
.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff;white-space:nowrap}
.brand b{color:var(--green)}
.toplinks{display:flex;gap:26px;font-size:12px;align-items:center}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;gap:2px;align-items:center}
.nav a{padding:10px 11px;font-size:13px;color:#475550;border-bottom:3px solid transparent;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-primary:hover{background:#afd463}
.btn-dark{background:var(--dark);color:#fff}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.page-intro{padding:78px 0 68px;background:#ebe8df;border-bottom:1px solid var(--line)}
.intro-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:60px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
.page-intro h1{font-size:clamp(36px,5vw,62px);line-height:1.18;letter-spacing:-.04em;margin:18px 0 14px}
.page-intro p{max-width:700px;color:var(--muted);font-size:17px;margin:0}
.summary-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px}
.summary-box strong{display:block;font-size:30px;color:var(--teal);line-height:1.2}
.summary-box span{display:block;color:var(--muted);font-size:13px;margin-top:6px}
section{padding:86px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px}
.section-head p{color:var(--muted);margin:0}
.monitor-list{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.monitor-card{display:grid;grid-template-columns:190px 1fr;gap:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:.2s}
.monitor-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.monitor-card img{height:170px;border-radius:13px}
.monitor-card h3{font-size:20px;margin:7px 0 7px}
.monitor-card p{font-size:14px;color:var(--muted);margin:0}
.card-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}
.tag{background:#edf3e6}
.text-link{display:inline-block;margin-top:14px;color:var(--teal);font-weight:700;font-size:14px}
.scene-section{background:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scene{min-height:190px;padding:22px;border:1px solid var(--line);border-radius:14px;background:#fbfcf9;position:relative}
.scene:nth-child(2),.scene:nth-child(4){background:#f1f5e9}
.scene b{display:block;font-size:18px;margin-bottom:8px}
.scene p{font-size:14px;color:var(--muted);margin:0}
.scene em{font-style:normal;color:var(--orange);font-size:26px;font-weight:800}
.compare{display:grid;grid-template-columns:1.2fr .8fr;gap:35px;align-items:start}
.compare-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-table th,.compare-table td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);font-size:14px}
.compare-table th{background:#eaf1df;color:#42610e;font-size:13px}
.compare-table tr:last-child td{border-bottom:0}
.metric-panel{background:var(--dark);color:#fff;border-radius:var(--radius);padding:30px}
.metric-panel h3{margin:0 0 20px;font-size:23px}
.metric{padding:15px 0;border-top:1px solid #43534a}
.metric:first-of-type{border-top:0}
.metric strong{display:block;color:var(--green);font-size:27px}
.metric span{font-size:13px;color:#c1cec4}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--green)}
.step{position:relative;padding:28px 22px 10px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step:before{content:"";position:absolute;top:-14px;left:20px;width:25px;height:25px;background:var(--green);border:5px solid var(--paper);border-radius:50%}
.step-num{color:var(--orange);font-weight:800;font-size:13px}
.step h3{margin:8px 0;font-size:19px}
.step p{font-size:14px;color:var(--muted);margin:0}
.darkcase{background:var(--dark);color:#fff}
.darkcase .section-head p{color:#b9c8be}
.case-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
.case-card{position:relative;min-height:260px;border-radius:var(--radius);overflow:hidden;background:#26352e}
.case-card:first-child{min-height:360px}
.case-card img{height:100%;position:absolute;inset:0}
.case-card:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(11,18,15,.9))}
.case-copy{position:absolute;left:25px;right:25px;bottom:20px;z-index:1}
.case-copy h3{margin:8px 0 3px;font-size:22px}
.case-copy p{margin:0;color:#d0dbd1;font-size:13px}
.faq{background:#f0ede6}
.faq-list{max-width:850px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none;min-height:56px}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.assure{padding:25px 0;background:#eaf1df}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure-item{display:flex;gap:12px;align-items:flex-start}
.assure-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;background:var(--teal);color:#fff;font-weight:800}
.assure-item strong{display:block;font-size:15px}
.assure-item span{display:block;color:var(--muted);font-size:12px}
.cta{padding:86px 0;background:#dfead0}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.contact-copy h2{font-size:40px;line-height:1.25;margin:0 0 15px}
.contact-copy p{color:var(--muted)}
.contact-info{margin-top:26px;display:grid;gap:8px;color:#4e5d55;font-size:14px}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:700;font-size:14px}
.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9;color:var(--ink)}
.field input::placeholder,.field textarea::placeholder{color:#98a49d}
.field textarea{min-height:108px;resize:vertical}
.field-wide{grid-column:1/-1}
.form .btn{grid-column:1/-1}
.form-message{grid-column:1/-1;color:var(--teal);font-size:14px;display:none}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between;gap:15px}
@media(max-width:1100px){
 .nav a{padding:9px 6px;font-size:12px}.toplinks{gap:12px}.intro-layout{gap:30px}.scene-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 40px,620px)}
 .topline{height:58px}.toplinks span:not(:last-child){display:none}.toplinks{font-size:11px}
 .navline{height:64px}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px #17221f20;flex-direction:column;align-items:stretch}
 .nav.open{display:flex}.nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}.menu-btn{display:block}.navline .btn{display:none}
 .intro-layout,.monitor-list,.compare,.case-grid,.contact-grid{grid-template-columns:1fr}
 .page-intro{padding:58px 0 52px}.page-intro h1{font-size:40px}.page-intro p{font-size:15px}
 section{padding:65px 0}.monitor-card{grid-template-columns:150px 1fr}.monitor-card img{height:150px}
 .timeline{display:block;border-top:0;border-left:2px solid var(--green);margin-left:12px}.step{border-right:0;padding:10px 10px 28px 30px}.step:before{top:13px;left:-14px}
 .assure-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.copyright{flex-direction:column}
 .contact-copy h2{font-size:32px}
}
@media(max-width:520px){
 .hero-actions{flex-direction:column}.btn{width:100%}.scene-grid,.assure-grid,.footer-grid,.form{grid-template-columns:1fr}
 .monitor-card{display:block}.monitor-card img{height:190px;margin-bottom:15px}
 .page-intro h1{font-size:34px}.summary-box strong{font-size:25px}
 .form .btn,.field-wide{grid-column:auto}.copyright{font-size:11px}
}
@media(max-width:375px){.container{width:calc(100% - 32px)}.brand{font-size:18px}.page-intro h1{font-size:31px}}

/* roulang page: category5 */
:root{
  --ink:#17221f;
  --muted:#65716d;
  --paper:#f7f5ef;
  --card:#fff;
  --line:#dfe4dc;
  --green:#9bc54a;
  --teal:#168d7b;
  --orange:#e58b3d;
  --dark:#17231f;
  --soft:#edf2e8;
  --sand:#eee9df;
  --radius:18px;
  --shadow:0 12px 35px rgba(25,42,34,.08);
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.topline{height:48px;background:var(--dark);color:#c8d3ca}
.topline .container,.navline .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
}
.brand{
  font-weight:800;
  font-size:21px;
  letter-spacing:.03em;
  color:#fff;
  white-space:nowrap;
}
.brand b{color:var(--green)}
.toplinks{display:flex;align-items:center;gap:24px;font-size:12px;color:#b8c5bb}
.navline{
  height:70px;
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:20;
}
.nav{display:flex;gap:2px;align-items:center}
.nav a{
  padding:10px 10px;
  font-size:13px;
  color:#475550;
  border-bottom:3px solid transparent;
  transition:.2s ease;
}
.nav a:hover,.nav a.active{
  color:var(--teal);
  border-color:var(--green);
  background:#f5f8ef;
}
.menu-btn{
  display:none;
  background:none;
  font-size:26px;
  color:var(--ink);
  min-width:44px;
  min-height:44px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 22px;
  border-radius:10px;
  font-weight:700;
  transition:.2s ease;
  border:1px solid transparent;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:3px solid #d8a33d;
  outline-offset:3px;
}
.btn-primary{background:var(--green);color:#17221f}
.btn-primary:hover{background:#afd568}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#263a31}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.btn-light:hover{border-color:var(--teal);color:var(--teal)}
main{overflow:hidden}
.category-head{
  padding:76px 0 66px;
  background:
    linear-gradient(90deg,rgba(247,245,239,.97) 0%,rgba(247,245,239,.88) 50%,rgba(247,245,239,.58) 100%),
    url("/assets/images/backpic/back-5.webp") center/cover;
  border-bottom:1px solid var(--line);
}
.category-head .container{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:60px;
  align-items:end;
}
.eyebrow,.tag{
  display:inline-block;
  color:#557119;
  background:#e9f2d5;
  padding:3px 10px;
  border-radius:30px;
  font-size:12px;
  font-weight:700;
}
.category-head h1{
  max-width:730px;
  font-size:clamp(34px,5vw,62px);
  line-height:1.18;
  letter-spacing:-.045em;
  margin:18px 0 16px;
}
.category-head p{
  max-width:700px;
  color:var(--muted);
  font-size:17px;
  margin:0;
}
.head-panel{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(223,228,220,.9);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.head-panel strong{display:block;font-size:15px;margin-bottom:15px}
.metric-row{
  display:flex;
  justify-content:space-between;
  gap:16px;
  border-top:1px solid var(--line);
  padding:13px 0 0;
  margin-top:13px;
}
.metric-row span{font-size:13px;color:var(--muted)}
.metric-row b{font-size:16px;color:var(--teal)}
section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{
  font-size:clamp(27px,3vw,42px);
  line-height:1.25;
  margin:0 0 12px;
  letter-spacing:-.025em;
}
.section-head p{color:var(--muted);margin:0}
.section-kicker{
  display:block;
  color:var(--orange);
  font-size:12px;
  font-weight:800;
  letter-spacing:.12em;
  margin-bottom:10px;
}
.data-list{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:26px;
  align-items:stretch;
}
.data-feature{
  min-height:450px;
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  background:var(--dark);
  color:#fff;
}
.data-feature img{height:100%;min-height:450px;opacity:.72}
.data-feature:after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(0deg,rgba(18,29,25,.9),rgba(18,29,25,.08) 68%);
}
.data-feature-content{
  position:absolute;
  z-index:1;
  left:28px;
  right:28px;
  bottom:27px;
}
.data-feature h3{font-size:27px;line-height:1.3;margin:12px 0 8px}
.data-feature p{color:#d7e2d8;margin:0;max-width:520px}
.data-items{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.data-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:15px;
  padding:22px;
  transition:.2s ease;
}
.data-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c7d8bd}
.data-index{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:9px;
  background:#edf3e6;
  color:var(--teal);
  font-size:13px;
  font-weight:800;
  margin-bottom:17px;
}
.data-item h3{font-size:18px;margin:0 0 7px}
.data-item p{font-size:14px;color:var(--muted);margin:0}
.text-link{
  display:inline-block;
  margin-top:15px;
  color:var(--teal);
  font-weight:700;
  font-size:14px;
}
.scenario-section{background:#f0ede6}
.scenario-board{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:16px;
}
.scenario{
  min-height:205px;
  padding:25px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
}
.scenario:nth-child(2){margin-top:28px;background:#e7f0df}
.scenario:nth-child(3){margin-top:56px;background:#17231f;color:#fff;border-color:#17231f}
.scenario h3{margin:0 0 8px;font-size:20px}
.scenario p{margin:0;color:var(--muted);font-size:14px}
.scenario:nth-child(3) p{color:#c9d8cc}
.scenario .tag{margin-bottom:18px}
.compare-wrap{
  display:grid;
  grid-template-columns:.72fr 1.28fr;
  gap:32px;
  align-items:start;
}
.compare-note{
  padding:28px;
  border-left:4px solid var(--green);
  background:#edf3e6;
  border-radius:0 15px 15px 0;
}
.compare-note h3{margin:0 0 10px;font-size:22px}
.compare-note p{margin:0;color:#52625b;font-size:14px}
.compare-list{display:grid;gap:11px}
.compare-row{
  display:grid;
  grid-template-columns:1.1fr 1fr 1fr;
  gap:12px;
  align-items:center;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:14px;
}
.compare-row:first-child{
  background:var(--dark);
  color:#fff;
  border-color:var(--dark);
  font-weight:700;
}
.compare-row span:not(:first-child){color:var(--muted)}
.compare-row:first-child span:not(:first-child){color:#dbe7dc}
.process-section{padding-top:30px}
.process-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  position:relative;
}
.process-track:before{
  content:"";
  position:absolute;
  top:26px;
  left:8%;
  right:8%;
  height:2px;
  background:#cbd8c7;
}
.process-step{position:relative;padding:0 18px;text-align:center}
.step-no{
  width:54px;height:54px;
  margin:0 auto 20px;
  display:grid;place-items:center;
  position:relative;
  z-index:1;
  border-radius:50%;
  background:var(--green);
  color:var(--dark);
  font-size:18px;
  font-weight:800;
  border:7px solid var(--paper);
}
.process-step h3{font-size:18px;margin:0 0 8px}
.process-step p{margin:0;color:var(--muted);font-size:14px}
.process-step .tag{margin-top:15px}
.parameter-section{background:#e8eee4}
.parameter-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.parameter-card{
  background:#fff;
  border-radius:var(--radius);
  border:1px solid var(--line);
  padding:23px;
}
.parameter-card:nth-child(2){transform:translateY(22px)}
.parameter-card h3{font-size:19px;margin:0 0 17px}
.parameter-card dl{margin:0}
.parameter-card dt{
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding:10px 0;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
}
.parameter-card dd{margin:0;color:var(--ink);font-weight:700;text-align:right}
.faq{background:#f0ede6}
.faq-list{max-width:900px}
.faq details{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin:10px 0;
  padding:0 20px;
  transition:.2s ease;
}
.faq details[open]{border-color:#bfd19f;box-shadow:0 8px 20px rgba(25,42,34,.05)}
.faq summary{
  padding:18px 0;
  font-weight:700;
  cursor:pointer;
  list-style:none;
  min-height:58px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{
  content:"+";
  float:right;
  color:var(--teal);
  font-size:22px;
  line-height:1;
}
.faq details[open] summary:after{content:"−"}
.faq details p{
  border-top:1px solid var(--line);
  padding:14px 0;
  margin:0;
  color:var(--muted);
  font-size:14px;
}
.assurance{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr 1fr;
  gap:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.assurance-intro{padding:27px;background:var(--dark);color:#fff}
.assurance-intro h2{font-size:23px;line-height:1.35;margin:0 0 10px}
.assurance-intro p{font-size:13px;color:#c8d8cb;margin:0}
.assurance-item{padding:27px 22px;border-left:1px solid var(--line)}
.assurance-item b{display:block;font-size:16px;margin:10px 0 6px}
.assurance-item p{font-size:13px;color:var(--muted);margin:0}
.assurance-icon{
  width:34px;height:34px;
  display:grid;place-items:center;
  color:var(--teal);
  border-radius:9px;
  background:#e9f2d5;
  font-weight:800;
}
.cta-section{padding-top:25px}
.cta-box{
  display:grid;
  grid-template-columns:1fr auto;
  gap:30px;
  align-items:center;
  background:var(--orange);
  color:#fff;
  border-radius:var(--radius);
  padding:35px 42px;
}
.cta-box h2{font-size:clamp(25px,3vw,38px);line-height:1.25;margin:0 0 8px}
.cta-box p{margin:0;color:#fff1df;max-width:680px}
.cta-box .btn{background:#fff;color:var(--dark)}
.cta-box .btn:hover{background:#f5f5ef}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:35px;
}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{
  border-top:1px solid #34433b;
  margin-top:35px;
  padding-top:18px;
  font-size:12px;
  color:#829188;
  display:flex;
  justify-content:space-between;
  gap:20px;
}
@media (max-width:1100px){
  .nav a{padding:9px 6px;font-size:12px}
  .toplinks span:nth-child(1){display:none}
  .category-head .container{gap:30px}
}
@media (max-width:900px){
  .category-head .container,.data-list,.compare-wrap{grid-template-columns:1fr}
  .category-head{padding:62px 0}
  .head-panel{max-width:520px}
  .scenario-board{grid-template-columns:1fr 1fr}
  .scenario:nth-child(2),.scenario:nth-child(3){margin-top:0}
  .parameter-grid{grid-template-columns:1fr 1fr}
  .parameter-card:nth-child(2){transform:none}
  .assurance{grid-template-columns:1fr 1fr}
  .assurance-intro{grid-column:1/-1}
  .assurance-item:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .assurance-item:nth-child(4){border-top:1px solid var(--line)}
}
@media (max-width:768px){
  .container{width:min(100% - 40px,620px)}
  .topline{height:54px}
  .toplinks{gap:10px;font-size:11px}
  .toplinks span:nth-child(2){display:none}
  .navline{height:64px}
  .nav{
    display:none;
    position:absolute;
    left:0;right:0;top:64px;
    background:#fff;
    padding:12px 20px 18px;
    box-shadow:0 12px 25px rgba(23,34,31,.12);
    flex-direction:column;
    align-items:stretch;
  }
  .nav.open{display:flex}
  .nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}
  .menu-btn{display:block}
  .navline .btn{display:none}
  section{padding:66px 0}
  .data-items,.scenario-board,.parameter-grid{grid-template-columns:1fr}
  .data-feature{min-height:370px}
  .data-feature img{min-height:370px}
  .process-track{grid-template-columns:1fr;gap:26px}
  .process-track:before{
    top:24px;bottom:24px;left:26px;right:auto;
    width:2px;height:auto;
  }
  .process-step{text-align:left;padding-left:78px}
  .step-no{position:absolute;left:0;top:0;margin:0;width:54px;height:54px}
  .assurance{grid-template-columns:1fr}
  .assurance-intro{grid-column:auto}
  .assurance-item,.assurance-item:nth-child(3),.assurance-item:nth-child(4){
    border-left:0;border-top:1px solid var(--line)
  }
  .cta-box{grid-template-columns:1fr;padding:30px 25px}
  .copyright{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .brand{font-size:18px}
  .toplinks span:last-child{font-size:11px}
  .category-head h1{font-size:35px}
  .category-head p{font-size:15px}
  .data-feature-content{left:20px;right:20px;bottom:20px}
  .data-feature h3{font-size:23px}
  .compare-row{grid-template-columns:1fr;gap:5px;padding:14px}
  .compare-row:first-child{display:none}
  .compare-row span:not(:first-child){
    display:flex;
    justify-content:space-between;
    color:var(--muted);
  }
  .compare-row span:not(:first-child):before{
    content:"参数值";
    color:#86928c;
    font-size:12px;
    margin-right:12px;
  }
  .compare-row span:nth-child(2):before{content:"接入方式"}
  .compare-row span:nth-child(3):before{content:"适用数据"}
  .cta-box .btn{width:100%}
}
@media (max-width:390px){
  .container{width:calc(100% - 32px)}
  .toplinks{display:none}
  .category-head{padding:50px 0}
  .category-head h1{font-size:31px}
}

/* roulang page: category6 */
:root{--ink:#17221f;--muted:#65716d;--paper:#f7f5ef;--card:#fff;--line:#dfe4dc;--green:#9bc54a;--teal:#168d7b;--orange:#e58b3d;--dark:#17231f;--radius:18px;--shadow:0 12px 35px rgba(25,42,34,.08);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:48px;background:var(--dark);color:#c8d3ca}
.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff}
.brand b{color:var(--green)}
.toplinks{display:flex;gap:24px;font-size:12px}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.nav{display:flex;gap:2px;align-items:center}
.nav a{padding:10px 8px;font-size:12px;color:#475550;border-bottom:3px solid transparent;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-dark{background:var(--dark);color:#fff}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
main{overflow:hidden}
section{padding:88px 0}
.page-intro{padding:76px 0 60px;background:#ebe9e1;border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,5vw,62px);line-height:1.18;letter-spacing:-.04em;margin:18px 0}
.intro-copy{font-size:17px;color:var(--muted);max-width:700px}
.intro-note{border-left:4px solid var(--orange);padding:8px 0 8px 20px;color:var(--muted);font-size:14px}
.section-head{max-width:740px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px}
.section-head p{color:var(--muted);margin:0}
.analysis-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.analysis-card,.metric-card,.scene-card,.support-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.analysis-card:hover,.metric-card:hover,.scene-card:hover,.support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.analysis-card.large{grid-row:span 2;background:var(--dark);color:#fff;padding:0;overflow:hidden}
.analysis-card.large img{height:270px}
.analysis-body{padding:26px}
.analysis-card h3,.metric-card h3,.scene-card h3,.support-card h3{font-size:19px;margin:0 0 8px}
.analysis-card p,.metric-card p,.scene-card p,.support-card p{color:var(--muted);font-size:14px;margin-bottom:0}
.analysis-card.large p{color:#c5d1c8}
.data-line{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid #3a4b41;padding:12px 0;font-size:14px}
.data-line strong{color:var(--green)}
.scene-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:30px;align-items:stretch}
.scene-card{min-height:150px}
.scene-card.featured{background:#e6f0d2;border-color:#d2e5a9}
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.metric-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:30px 20px;border-right:1px solid var(--line)}
.metric:last-child{border:0}
.metric strong{display:block;font-size:34px;color:var(--teal);line-height:1.2}
.metric span{font-size:13px;color:var(--muted)}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare h3{margin:0;padding:18px 22px;background:#edf3e6;font-size:18px}
.compare dl{margin:0}
.compare dl div{display:flex;justify-content:space-between;gap:20px;padding:15px 22px;border-top:1px solid var(--line);font-size:14px}
.compare dt{color:var(--muted)}
.compare dd{margin:0;text-align:right;font-weight:700}
.process{background:#edf0e8}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.steps:before{content:"";position:absolute;top:23px;left:8%;right:8%;height:2px;background:#cbd8bd}
.step{position:relative;text-align:center;padding:0 12px}
.step b{display:grid;place-items:center;width:46px;height:46px;margin:0 auto 18px;border-radius:50%;background:var(--green);color:var(--ink);position:relative;z-index:1}
.step h3{font-size:17px;margin-bottom:7px}
.step p{font-size:13px;color:var(--muted);margin:0}
.step .tag{margin-top:12px}
.faq{background:#f0ede6}
.faq-list{max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none;min-height:44px}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.support-card{padding:22px}
.support-icon{font-size:25px;color:var(--orange);margin-bottom:10px}
.contact{background:var(--dark);color:#fff}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.contact-copy p{color:#c8d3ca}
.contact-list{list-style:none;padding:0;margin:28px 0 0;color:#c8d3ca;font-size:14px}
.contact-list li{padding:8px 0;border-bottom:1px solid #394a40}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;background:#fbfcf9;min-height:46px}
.field textarea{min-height:105px;resize:vertical}
.field.full,.form .btn,.form-message{grid-column:1/-1}
.form .btn{justify-self:start}
.form-message{color:var(--teal);font-size:14px;display:none}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1100px){.nav a{padding:10px 5px;font-size:11px}.navline .btn{padding:0 14px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
 .container{width:min(100% - 40px,620px)}
 .topline{height:56px}.toplinks span{display:none}.toplinks span:last-child{display:block}
 .navline{height:64px}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px #17221f20;flex-direction:column;align-items:stretch}
 .nav.open{display:flex}.nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}.menu-btn{display:block}.navline .btn{display:none}
 .intro-grid,.analysis-grid,.scene-layout,.compare-wrap,.contact-grid{grid-template-columns:1fr;gap:24px}
 section{padding:65px 0}.page-intro{padding:58px 0 45px}h1{font-size:38px}
 .scene-list,.support-grid{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:1fr 1fr}.metric{border-bottom:1px solid var(--line)}.metric:nth-child(2){border-right:0}
 .steps{grid-template-columns:1fr;gap:24px}.steps:before{top:20px;bottom:20px;left:22px;width:2px;height:auto;right:auto}.step{text-align:left;padding-left:70px}.step b{position:absolute;left:0;top:0;margin:0}.step .tag{margin-top:8px}
 .footer-grid{grid-template-columns:1fr 1fr}.copyright{flex-direction:column}
}
@media(max-width:520px){.scene-list,.support-grid,.footer-grid,.form{grid-template-columns:1fr}.hero-actions{flex-direction:column}.analysis-card.large img{height:210px}.metric strong{font-size:27px}.compare dl div{display:block}.compare dd{text-align:left;margin-top:4px}.form .btn{width:100%}}

/* roulang page: category7 */
:root{
  --ink:#17221f;
  --muted:#65716d;
  --paper:#f7f5ef;
  --card:#fff;
  --line:#dfe4dc;
  --green:#9bc54a;
  --teal:#168d7b;
  --orange:#e58b3d;
  --dark:#17231f;
  --dark-2:#22332c;
  --radius:18px;
  --shadow:0 12px 35px rgba(25,42,34,.08);
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75}
body.menu-lock{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topline{height:48px;background:var(--dark);color:#c8d3ca}
.topline .container,.navline .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:800;font-size:21px;letter-spacing:.03em;color:#fff;white-space:nowrap}
.brand b{color:var(--green)}
.toplinks{display:flex;align-items:center;gap:25px;font-size:12px}
.navline{height:70px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;gap:1px;align-items:center}
.nav a{padding:10px 9px;font-size:12px;color:#475550;border-bottom:3px solid transparent;white-space:nowrap;transition:.2s}
.nav a:hover,.nav a.active{color:var(--teal);border-color:var(--green);background:#f5f8ef}
.menu-btn{display:none;background:none;font-size:26px;color:var(--ink);min-width:44px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:700;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #d8a33d;outline-offset:3px}
.btn-primary{background:var(--green);color:#17221f}
.btn-primary:hover{background:#afd55d}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#2a4035}
.btn-light{border-color:#b9c5bd;color:var(--ink);background:#fff}
.btn-light:hover{border-color:var(--teal);color:var(--teal)}
main{overflow:hidden}
.category-intro{padding:74px 0 64px;background:#ebe9e1;border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:65px;align-items:end}
.eyebrow,.tag{display:inline-block;color:#557119;background:#e9f2d5;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
.category-intro h1{font-size:clamp(34px,5vw,62px);line-height:1.2;letter-spacing:-.045em;margin:18px 0 16px;max-width:740px}
.category-intro p{color:var(--muted);font-size:16px;max-width:680px;margin:0}
.intro-panel{background:var(--dark);color:#fff;border-radius:var(--radius);padding:27px;position:relative;overflow:hidden}
.intro-panel:after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(155,197,74,.35);border-radius:50%;right:-42px;bottom:-58px}
.intro-panel strong{display:block;font-size:30px;color:var(--green);line-height:1.2}
.intro-panel span{display:block;color:#c8d3ca;font-size:13px;margin-top:8px}
.intro-meta{display:grid;grid-template-columns:1fr 1fr;gap:18px;border-top:1px solid #405148;margin-top:22px;padding-top:18px}
.intro-meta b{font-size:18px;color:#fff}
section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(27px,3vw,42px);line-height:1.25;margin:0 0 12px;letter-spacing:-.025em}
.section-head p{color:var(--muted);margin:0}
.solution-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:stretch}
.solution-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:grid;grid-template-columns:1fr 1fr}
.solution-feature img{height:100%;min-height:380px}
.solution-copy{padding:31px}
.solution-copy h3{font-size:27px;line-height:1.35;margin:0 0 12px}
.solution-copy p{color:var(--muted);font-size:14px}
.solution-list{display:grid;gap:14px}
.solution-item{background:#f0ede6;border:1px solid var(--line);border-radius:14px;padding:21px 22px;transition:.2s}
.solution-item:hover{background:#fff;box-shadow:var(--shadow);transform:translateX(3px)}
.solution-item h3{font-size:18px;margin:0 0 4px}
.solution-item p{font-size:13px;color:var(--muted);margin:0}
.kicker{color:var(--teal);font-weight:800;font-size:13px;letter-spacing:.08em}
.scene-section{background:#fff}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.scene-card{min-height:205px;border:1px solid var(--line);border-radius:var(--radius);padding:23px;background:#fbfcf9;position:relative;overflow:hidden}
.scene-card:nth-child(2){background:#edf3e6}
.scene-card:nth-child(3){background:#f8eee3}
.scene-card:nth-child(4){background:#e8f1ee}
.scene-number{font-size:42px;font-weight:800;color:rgba(22,141,123,.18);line-height:1}
.scene-card h3{font-size:19px;margin:25px 0 7px}
.scene-card p{font-size:13px;color:var(--muted);margin:0}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}
.filter-bar span{padding:9px 15px;border:1px solid var(--line);border-radius:30px;background:#fff;color:#52605a;font-size:13px}
.filter-bar span.active{background:var(--teal);border-color:var(--teal);color:#fff}
.tool-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tool-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;display:grid;grid-template-columns:78px 1fr;gap:20px;transition:.2s}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tool-icon{width:78px;height:78px;border-radius:16px;background:#e9f2d5;color:#557119;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:25px}
.tool-card:nth-child(2) .tool-icon{background:#e6f1ed;color:var(--teal)}
.tool-card:nth-child(3) .tool-icon{background:#faeadb;color:#b66324}
.tool-card h3{margin:0 0 5px;font-size:20px}
.tool-card p{margin:0;color:var(--muted);font-size:14px}
.card-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:15px}
.card-foot small{color:#78847e;font-size:12px}
.text-link{display:inline-block;color:var(--teal);font-weight:700;font-size:14px}
.compare-section{background:#f0ede6}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.compare-panel h3{margin:0;padding:20px 24px;background:var(--dark);color:#fff;font-size:18px}
.compare-row{display:grid;grid-template-columns:1.1fr .9fr;border-top:1px solid var(--line);padding:15px 24px;font-size:14px;gap:15px}
.compare-row span:first-child{color:var(--muted)}
.compare-row b{font-weight:700}
.process-section{background:#17231f;color:#fff}
.process-section .section-head p{color:#bac8bd}
.process-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.process-flow:before{content:"";position:absolute;top:27px;left:8%;right:8%;height:1px;background:#4c6255}
.process-step{position:relative;padding:0 18px;text-align:center}
.process-step em{display:flex;align-items:center;justify-content:center;width:54px;height:54px;margin:0 auto 20px;border-radius:50%;background:var(--green);color:var(--dark);font-style:normal;font-weight:800;position:relative;z-index:1}
.process-step h3{font-size:17px;margin:0 0 8px}
.process-step p{font-size:13px;color:#b9c8be;margin:0}
.process-step small{display:inline-block;color:#d8f09c;margin-top:11px;font-size:11px}
.visual-section{padding-bottom:88px}
.visual-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:stretch}
.visual-copy{background:#e4eee1;border-radius:var(--radius);padding:35px}
.visual-copy h2{font-size:34px;line-height:1.3;margin:12px 0}
.visual-copy p{color:var(--muted);font-size:15px}
.visual-points{margin:24px 0 0;padding:0;list-style:none}
.visual-points li{padding:12px 0;border-top:1px solid #cbd9c9;font-size:14px}
.visual-points li:before{content:"✓";color:var(--teal);font-weight:800;margin-right:10px}
.visual-image{border-radius:var(--radius);overflow:hidden;min-height:390px}
.visual-image img{height:100%;min-height:390px}
.trust-section{background:#fff}
.trust-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.trust-image{border-radius:var(--radius);overflow:hidden}
.trust-image img{height:340px}
.trust-box{padding:12px 0}
.trust-box h2{font-size:32px;line-height:1.3;margin:0 0 14px}
.trust-box p{color:var(--muted);font-size:14px}
.trust-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.trust-tags span{padding:9px 13px;border:1px solid var(--line);border-radius:9px;background:#fbfcf9;color:#52605a;font-size:13px}
.faq{background:#f0ede6}
.faq-list{max-width:890px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 20px}
.faq summary{padding:18px 0;font-weight:700;cursor:pointer;list-style:none;min-height:58px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";float:right;color:var(--teal);font-size:22px}
.faq details[open] summary:after{content:"−"}
.faq details p{border-top:1px solid var(--line);padding:14px 0;margin:0;color:var(--muted);font-size:14px}
.assure{padding:30px 0;background:var(--green)}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.assure-item{display:flex;gap:13px;align-items:flex-start}
.assure-mark{width:35px;height:35px;border-radius:10px;background:var(--dark);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;flex:none}
.assure-item h3{font-size:15px;margin:0 0 3px}
.assure-item p{font-size:12px;margin:0;color:#405346}
.cta-section{padding:88px 0;background:#e8e8df}
.cta-box{background:var(--dark);border-radius:22px;padding:45px 50px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
.cta-box:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(155,197,74,.24);border-radius:50%;right:-80px;top:-120px}
.cta-box h2{font-size:34px;line-height:1.3;margin:0 0 10px;position:relative;z-index:1}
.cta-box p{color:#c8d3ca;margin:0;max-width:650px;position:relative;z-index:1}
.cta-actions{display:flex;gap:10px;flex:none;position:relative;z-index:1}
.footer{background:#14201c;color:#c8d3ca;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:35px}
.footer h3{color:#fff;margin:0 0 12px;font-size:16px}
.footer p,.footer a{font-size:13px;color:#afbeb3}
.footer a:hover{color:var(--green)}
.copyright{border-top:1px solid #34433b;margin-top:35px;padding-top:18px;font-size:12px;color:#829188;display:flex;justify-content:space-between;gap:15px}
@media (max-width:1280px){
  .nav a{padding-left:6px;padding-right:6px}
}
@media (max-width:1024px){
  .toplinks{gap:12px}
  .navline .btn{display:none}
  .intro-grid,.solution-layout,.visual-layout,.trust-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .process-flow{grid-template-columns:repeat(3,1fr);row-gap:35px}
  .process-flow:before{display:none}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{width:min(100% - 40px,620px)}
  .topline{height:52px}
  .toplinks span:not(:last-child){display:none}
  .toplinks{font-size:11px}
  .navline{height:64px}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:12px 20px;box-shadow:0 12px 25px rgba(23,34,31,.12);flex-direction:column;align-items:stretch}
  .nav.open{display:flex}
  .nav a{padding:12px;border-bottom:1px solid var(--line);font-size:14px}
  .menu-btn{display:block}
  .navline .container{justify-content:space-between}
  .category-intro{padding:58px 0 48px}
  .category-intro h1{font-size:38px}
  section{padding:65px 0}
  .solution-feature{grid-template-columns:1fr}
  .solution-feature img{height:260px;min-height:0}
  .tool-list,.compare-wrap{grid-template-columns:1fr}
  .process-flow{grid-template-columns:1fr;text-align:left;gap:22px}
  .process-step{display:grid;grid-template-columns:54px 1fr;column-gap:17px;text-align:left;padding:0}
  .process-step em{grid-row:span 2;margin:0}
  .process-step small{grid-column:2;margin-top:3px}
  .trust-image img,.visual-image img{min-height:270px;height:270px}
  .cta-box{padding:32px 25px;display:block}
  .cta-box h2{font-size:28px}
  .cta-actions{margin-top:24px;flex-wrap:wrap}
  .copyright{display:block;line-height:2}
  .copyright span{display:block}
}
@media (max-width:576px){
  .brand{font-size:18px}
  .scene-grid,.assure-grid{grid-template-columns:1fr}
  .intro-meta{gap:10px}
  .category-intro h1{font-size:34px}
  .section-head h2{font-size:29px}
  .tool-card{grid-template-columns:1fr}
  .tool-icon{width:58px;height:58px;font-size:20px}
  .compare-row{grid-template-columns:1fr;gap:2px;padding:13px 18px}
  .cta-actions .btn{width:100%}
}
@media (max-width:375px){
  .container{width:calc(100% - 32px)}
  .toplinks{display:none}
  .category-intro h1{font-size:31px}
  .btn{padding:0 16px}
}