/* roulang page: index */
:root{--ink:#17201e;--muted:#68736f;--lime:#b8e64a;--soft:#edf2ef;--paper:#f7f8f4;--line:#dbe2de;--dark:#1d2926;--white:#fff;--radius:16px;--shadow:0 18px 50px rgba(23,32,30,.09)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer;border:0}img{display:block;max-width:100%}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,248,244,.96);border-bottom:1px solid var(--line)}
.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{font-size:21px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.logo i{display:inline-block;width:10px;height:10px;background:var(--lime);border-radius:50%;margin:0 8px 2px 0}
.main-nav{display:flex;gap:26px;align-items:center;font-size:14px;color:#4d5955}.main-nav a{padding:8px 0;position:relative}.main-nav a:hover,.main-nav a.active{color:var(--ink)}.main-nav a.active:after{content:"";position:absolute;height:3px;background:var(--lime);left:0;right:0;bottom:1px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;border:1px solid transparent}.btn-primary{background:var(--lime);color:#17201e}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(184,230,74,.3)}.btn-dark{background:var(--dark);color:#fff}.btn-light{background:#fff;color:var(--ink)}.btn-outline{border-color:#aebbb5}.btn:focus,a:focus{outline:3px solid rgba(184,230,74,.65);outline-offset:3px}
.menu-toggle{display:none;background:none;font-size:24px;padding:8px}.subnav{border-top:1px solid #e5eae7;overflow:auto}.subnav-inner{height:42px;display:flex;align-items:center;gap:26px;white-space:nowrap;font-size:13px;color:var(--muted)}.subnav a:hover{color:var(--ink)}
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;min-height:570px;display:flex;align-items:center}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(29,41,38,.94) 0%,rgba(29,41,38,.76) 48%,rgba(29,41,38,.25)),url('/assets/images/40ad71cb2be22bd9.webp') center/cover}.hero:after{content:"";position:absolute;right:-12%;top:-30%;width:62%;height:140%;background:var(--lime);transform:skewX(-18deg);opacity:.92}.hero-content{position:relative;z-index:1;width:min(1180px,calc(100% - 40px));margin:auto;padding:86px 0 78px}.eyebrow{display:flex;align-items:center;gap:10px;color:#d9e4df;font-size:13px;letter-spacing:1px;margin-bottom:24px}.eyebrow span{width:8px;height:8px;background:var(--lime);border-radius:50%}.hero h1{font-size:clamp(44px,6.5vw,76px);line-height:1.12;letter-spacing:-4px;max-width:690px;margin-bottom:24px}.hero-copy{max-width:610px;color:#d2dbd6;font-size:18px;line-height:1.9;margin-bottom:32px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-note{margin-top:30px;display:flex;gap:18px;flex-wrap:wrap;color:#dbe5e0;font-size:13px}.hero-note b{color:var(--lime);font-size:18px;margin-right:4px}.hero-panel{position:absolute;z-index:2;right:7%;bottom:55px;width:330px;background:#f8faf7;color:var(--ink);padding:22px;border-radius:20px;box-shadow:var(--shadow);transform:rotate(2deg)}.panel-head{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:14px;font-size:13px;font-weight:700}.online{color:#558118}.online:before{content:"";display:inline-block;width:7px;height:7px;background:var(--lime);border-radius:50%;margin-right:5px}.chat{display:flex;gap:9px;margin:12px 0;align-items:flex-start}.avatar{width:28px;height:28px;flex:none;border-radius:9px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-size:11px;font-weight:800}.bubble{background:var(--soft);padding:9px 12px;border-radius:4px 12px 12px 12px;font-size:13px;line-height:1.55}.chat.me{justify-content:flex-end}.chat.me .bubble{background:var(--lime);border-radius:12px 4px 12px 12px}.trustbar{background:#fff;border-bottom:1px solid var(--line)}.trust-list{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:24px 0;color:#53605b;font-size:14px}.trust-list span:before{content:"✓";color:#789b34;font-weight:800;margin-right:8px}
section{padding:105px 0}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:35px;margin-bottom:48px}.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-2px;max-width:650px}.section-head p{color:var(--muted);max-width:470px;line-height:1.9}.kicker{color:#789b34;font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:12px}
.intro-grid{display:grid;grid-template-columns:4fr 7fr;gap:80px;align-items:center}.intro-copy h2{font-size:42px;line-height:1.25;letter-spacing:-2px;margin-bottom:22px}.intro-copy p{color:var(--muted);margin-bottom:25px}.proof{border-top:1px solid var(--line);padding-top:18px;font-size:14px}.proof strong{font-size:27px;margin-right:8px}.interface{background:#e7eeea;border:1px solid #d4dfd9;border-radius:22px;padding:25px;box-shadow:var(--shadow)}.interface-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.interface-top strong{font-size:18px}.window{background:#fff;border-radius:14px;padding:20px;display:grid;grid-template-columns:1fr 1.3fr;gap:18px}.side-menu{border-right:1px solid var(--line);font-size:13px;color:var(--muted)}.side-menu div{padding:10px 8px;border-radius:8px}.side-menu div:first-child{background:var(--soft);color:var(--ink);font-weight:700}.metric{background:var(--dark);color:white;padding:16px;border-radius:12px;margin-bottom:12px}.metric small{color:#b8c7c1;display:block}.metric b{font-size:25px;color:var(--lime)}.mini-list{font-size:13px}.mini-list li{list-style:none;padding:11px 0;border-bottom:1px solid var(--line)}.mini-list em{font-style:normal;color:#66892e;float:right}
.value-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.value-row{display:grid;grid-template-columns:repeat(3,1fr)}.value-item{padding:30px 30px 30px 0;border-right:1px solid var(--line);margin-right:30px}.value-item:last-child{border:0;margin:0}.num{font-size:13px;color:#789b34;font-weight:800}.value-item h3{font-size:22px;margin:8px 0}.value-item p,.cap-card p,.product-card p,.story p,.news-card p{color:var(--muted);font-size:14px;line-height:1.8}.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}.tag{font-size:12px;padding:4px 9px;border:1px solid var(--line);border-radius:6px;color:#63706b}
.capabilities{background:var(--soft)}.cap-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:16px}.cap-card{background:#fff;border:1px solid var(--line);padding:27px;border-radius:var(--radius);min-height:190px;transition:.25s}.cap-card:first-child{grid-row:span 2;background:var(--dark);color:#fff;padding:34px}.cap-card:first-child p{color:#c6d1cc}.cap-card:hover,.product-card:hover,.story:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b9cf9a}.cap-icon{font-size:25px;margin-bottom:16px}.cap-card h3{font-size:20px;margin-bottom:9px}
.products{background:#fff}.product-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:16px}.product-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--paper);transition:.25s}.product-card img{height:175px;width:100%;object-fit:cover}.product-body{padding:23px}.product-body h3{font-size:22px;margin-bottom:8px}.product-body .btn{margin-top:18px;font-size:13px;padding:9px 14px}
.demo{background:#eef3ee}.demo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.steps{border-left:1px solid #b5c5be}.step{position:relative;padding:0 0 28px 34px}.step:before{content:"";position:absolute;left:-6px;top:5px;width:11px;height:11px;border-radius:50%;background:var(--lime);border:3px solid #eef3ee}.step b{font-size:17px}.step p{font-size:14px;color:var(--muted);margin-top:5px}.conversation{background:#fff;border-radius:20px;padding:28px;border:1px solid var(--line);box-shadow:var(--shadow)}.conversation .bubble{max-width:82%}.status{font-size:12px;color:#6c8d38;padding:12px 0;border-top:1px dashed var(--line);margin-top:12px}
.case-section{background:var(--dark);color:#fff}.case-section .section-head p{color:#b9c6c0}.case-grid{display:grid;grid-template-columns:1.2fr 2fr;gap:55px;align-items:end}.case-number{font-size:clamp(70px,11vw,150px);line-height:.9;color:var(--lime);font-weight:800;letter-spacing:-8px}.case-label{color:#cbd7d1;margin-top:18px}.case-points{display:grid;grid-template-columns:1fr 1fr;gap:20px}.case-point{border-top:1px solid #4a5b54;padding-top:16px}.case-point strong{font-size:18px}.case-point p{color:#b9c6c0;font-size:14px;margin-top:6px}
.stories{background:#fff}.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.story{border:1px solid var(--line);padding:25px;border-radius:16px;transition:.25s}.story-mark{color:#789b34;font-size:28px;font-weight:800}.story h3{font-size:19px;margin:10px 0}.story cite{display:block;font-style:normal;font-size:13px;margin-top:18px;color:#4c5a55}
.stats{padding:62px 0;background:var(--lime)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.stat{border-left:1px solid rgba(23,32,30,.25);padding-left:22px}.stat strong{display:block;font-size:44px;line-height:1.1;letter-spacing:-2px}.stat span{font-size:13px;color:#43523b}
.reviews{background:var(--paper)}.review-box{background:#fff;border:1px solid var(--line);padding:42px 50px;border-radius:20px;display:flex;justify-content:space-between;gap:35px;align-items:center}.review-quote{font-size:26px;line-height:1.6;max-width:800px}.review-meta{min-width:170px;color:var(--muted);font-size:13px}.stars{color:#789b34;letter-spacing:3px;margin-bottom:10px}
.compare{background:#fff}.compare-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden}.compare-col{padding:30px}.compare-col:first-child{background:#f1f3f0;border-right:1px solid var(--line)}.compare-col h3{font-size:21px;margin-bottom:18px}.compare-col li{list-style:none;border-top:1px solid var(--line);padding:14px 0;font-size:14px}.compare-col li:before{content:"—";color:#94a19b;margin-right:10px}.compare-col:last-child li:before{content:"✓";color:#789b34;font-weight:bold}
.news{background:var(--soft)}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.news-card{background:#fff;border-radius:15px;padding:25px;border:1px solid var(--line)}.news-date{color:#789b34;font-size:12px;font-weight:700}.news-card h3{font-size:18px;margin:12px 0 8px}
.faq{background:#fff}.faq-list{max-width:850px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-btn{width:100%;background:none;text-align:left;padding:22px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:700;color:var(--ink)}.faq-btn span{font-size:23px;line-height:1;transition:.25s}.faq-panel{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease}.faq-item.open .faq-panel{max-height:150px;padding:0 30px 22px 4px}.faq-item.open .faq-btn span{transform:rotate(45deg);color:#789b34}
.assurance{padding:55px 0;background:#e8eeea}.assurance-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.assure{font-size:14px}.assure b{display:block;font-size:17px;margin-bottom:5px}.assure span{color:var(--muted);font-size:13px}
.cta-section{padding:88px 0;background:var(--dark);color:#fff}.cta-box{display:flex;justify-content:space-between;align-items:end;gap:35px}.cta-box h2{font-size:clamp(32px,5vw,58px);line-height:1.18;letter-spacing:-3px;max-width:680px}.cta-box p{color:#bdc9c3;margin-top:15px}.contact-info{text-align:right;color:#c8d2ce;font-size:14px;line-height:2}.contact-info a{color:var(--lime);font-weight:700}
.site-footer{background:#151d1b;color:#aebbb5;padding:55px 0 90px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-logo{color:#fff;font-size:21px;font-weight:800;margin-bottom:15px}.footer-grid h4{color:#fff;margin-bottom:14px}.footer-grid a{display:block;font-size:14px;margin:7px 0}.footer-grid a:hover{color:var(--lime)}.footer-note{font-size:13px;max-width:280px;line-height:1.8}.copyright{border-top:1px solid #35423d;margin-top:40px;padding-top:20px;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.fixed-cta{position:fixed;bottom:0;left:0;right:0;z-index:15;background:rgba(29,41,38,.97);color:#fff;padding:12px 20px}.fixed-inner{width:min(1180px,100%);margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.fixed-inner small{color:#c1cec8}.fixed-inner strong{color:var(--lime)}
@media(max-width:1024px){.hero-panel{right:3%;width:290px}.main-nav{gap:14px}.intro-grid{gap:35px}.case-grid{gap:30px}}
@media(max-width:768px){.container,.hero-content{width:min(100% - 32px,600px)}.topbar{height:66px}.main-nav{display:none}.menu-toggle{display:block}.topbar>.btn{display:none}.subnav-inner{gap:20px}.hero{min-height:650px}.hero:after{right:-55%;width:95%;opacity:.35}.hero-panel{position:relative;right:auto;bottom:auto;margin:38px auto 0;transform:none;width:min(100%,350px)}.hero-content{padding:60px 0}.hero h1{letter-spacing:-2px}.hero-copy{font-size:16px}.section-head,.cta-box{display:block}.section-head{margin-bottom:32px}.section-head p{margin-top:17px}.intro-grid,.demo-wrap,.case-grid{grid-template-columns:1fr}.intro-copy h2{font-size:34px}.value-row{grid-template-columns:1fr}.value-item{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:24px 0}.cap-grid,.product-grid,.story-grid,.news-grid{grid-template-columns:1fr 1fr}.cap-card:first-child{grid-row:auto;grid-column:span 2}.window{grid-template-columns:1fr}.side-menu{border-right:0;border-bottom:1px solid var(--line);padding-bottom:10px}.stats-grid{grid-template-columns:1fr 1fr;gap:25px}.review-box{display:block;padding:30px}.review-quote{font-size:21px}.review-meta{margin-top:25px}.assurance-grid{grid-template-columns:1fr 1fr}.contact-info{text-align:left;margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}.fixed-inner small{display:none}}
@media(max-width:520px){body{font-size:15px}.hero h1{font-size:43px}.hero-note{gap:10px;display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn{width:100%}section{padding:72px 0}.cap-grid,.product-grid,.story-grid,.news-grid{grid-template-columns:1fr}.cap-card:first-child{grid-column:auto}.case-points{grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr}.compare-col:first-child{border-right:0;border-bottom:1px solid var(--line)}.stats{padding:42px 0}.stat strong{font-size:34px}.footer-grid{grid-template-columns:1fr}.fixed-cta{padding:10px 12px}.fixed-inner{justify-content:center}.fixed-inner .btn{flex:1;padding:10px 8px;font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}