/* roulang page: index */
:root{--lime:#c8f34a;--lime-dark:#9dcc20;--amber:#ffb84d;--ink:#17201b;--muted:#657069;--paper:#f5f6f0;--white:#fff;--line:#dfe5d9;--dark:#17231d;--deep:#101713;--radius:24px;--small:15px;--shadow:0 18px 48px rgba(27,42,31,.09);--max:1220px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.topbar{background:var(--dark);color:#e8f1e1;height:58px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:-.5px}
.brand-mark{width:32px;height:32px;border-radius:10px 10px 10px 3px;background:linear-gradient(135deg,var(--lime),#77bd40);position:relative}
.brand-mark:after{content:"";position:absolute;width:12px;height:6px;border-left:3px solid var(--dark);border-bottom:3px solid var(--dark);transform:rotate(-45deg);left:9px;top:10px}
.top-info{font-size:13px;color:#b6c3b4;display:flex;gap:24px;align-items:center}
.hotline{color:var(--lime);font-weight:700}
.navbar{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
.navbar.scrolled{box-shadow:0 8px 24px rgba(20,35,24,.08)}
.navbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.nav-links{display:flex;gap:27px;align-items:center}
.nav-links a{font-size:14px;color:#59645c;padding:27px 0;position:relative;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active:after{content:"";height:3px;border-radius:3px;background:var(--lime-dark);position:absolute;left:0;right:0;bottom:17px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:13px;font-weight:700;font-size:14px;transition:.22s;border:1px solid transparent}
.btn-primary{background:var(--lime);color:#172016;box-shadow:0 8px 18px rgba(157,204,32,.22)}
.btn-primary:hover{background:#d8fa67;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);background:#afd83a}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#2e4134;transform:translateY(-2px)}
.btn-outline{border-color:#aebaa9;color:var(--ink);background:transparent}
.btn-outline:hover{border-color:var(--ink);background:#fff}
.btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid rgba(157,204,32,.55);outline-offset:3px}
.menu-btn{display:none;background:none;color:var(--ink);font-size:25px}
.hero{min-height:625px;position:relative;color:#fff;overflow:hidden;background:var(--dark)}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .7s;display:flex;align-items:center}
.hero-slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,19,14,.88),rgba(12,24,17,.5) 55%,rgba(11,19,13,.18))}
.hero-slide.current{opacity:1}
.hero-content{position:relative;z-index:1;width:min(var(--max),calc(100% - 48px));margin:auto;padding:72px 0}
.hero-kicker,.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:2px;color:var(--lime);font-weight:800}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.12;letter-spacing:-3px;max-width:760px;margin:20px 0 22px}
.hero p{max-width:670px;color:#dbe5d8;font-size:18px;line-height:1.85}
.hero-actions{display:flex;gap:12px;margin-top:31px}
.hero .btn-outline{border-color:#829280;color:#fff}
.hero .btn-outline:hover{background:#fff;color:var(--ink)}
.hero-controls{position:absolute;z-index:3;bottom:42px;left:max(24px,calc((100% - 1220px)/2));display:flex;gap:9px;align-items:center}
.hero-controls button{width:38px;height:38px;border:1px solid rgba(255,255,255,.35);border-radius:50%;color:#fff;background:rgba(0,0,0,.2)}
.hero-controls button:hover{background:var(--lime);color:var(--ink)}
.dots{display:flex;gap:7px;margin-left:12px}.dot{width:23px;height:4px;border-radius:5px;background:#829184}.dot.current{background:var(--lime);width:42px}
.section{padding:105px 0;scroll-margin-top:80px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}
.section-head h2{font-size:clamp(28px,4vw,45px);line-height:1.2;letter-spacing:-1.5px;margin-top:10px}
.section-head p{max-width:540px;color:var(--muted)}
.overview{background:#fff}.overview-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:66px;align-items:center}
.overview-img{border-radius:30px;overflow:hidden;box-shadow:var(--shadow);position:relative}
.overview-img img{width:100%;height:390px;object-fit:cover}
.overview-img .float-tag{position:absolute;right:22px;bottom:20px;background:#fff;border-radius:14px;padding:13px 17px;box-shadow:var(--shadow);font-size:13px}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}.chip,.badge{display:inline-flex;align-items:center;padding:7px 12px;border-radius:99px;background:#eef5dd;color:#54701d;font-size:12px;font-weight:700}
.overview-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:28px 0}
.overview-list div{border-left:3px solid var(--lime-dark);padding-left:13px;font-weight:700}.overview-list small{display:block;color:var(--muted);font-weight:400}
.dashboard{background:#edf1e7}.dash-board{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.dash-card{background:#fff;border-radius:var(--radius);padding:27px;box-shadow:0 8px 25px rgba(36,50,36,.05)}.dash-card.large{grid-row:span 2}.dash-title{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}.number{font-size:42px;font-weight:800;letter-spacing:-2px;margin:14px 0 2px}.trend{color:#6e9a21;font-size:13px;font-weight:700}.chart{height:105px;margin-top:20px;display:flex;align-items:end;gap:9px}.bar{flex:1;background:linear-gradient(#c8f34a,#86bd35);border-radius:6px 6px 2px 2px;min-height:22px}.status-line{display:flex;gap:8px;align-items:center;margin-top:21px}.status-dot{width:9px;height:9px;background:#80c43d;border-radius:50%}.progress{height:9px;background:#e6ebdf;border-radius:9px;margin-top:18px;overflow:hidden}.progress i{display:block;height:100%;background:var(--lime-dark);border-radius:9px}.matrix{background:#fff}.matrix-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.ability{min-height:230px;border:1px solid var(--line);border-radius:21px;padding:22px;transition:.25s;position:relative}.ability:nth-child(2),.ability:nth-child(5){transform:translateY(22px)}.ability:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b7d36a}.ability:nth-child(2):hover,.ability:nth-child(5):hover{transform:translateY(17px)}.ability-icon{width:40px;height:40px;border-radius:13px;background:var(--dark);color:var(--lime);display:grid;place-items:center;font-weight:800;margin-bottom:24px}.ability h3{font-size:17px;margin-bottom:8px}.ability p{font-size:13px;color:var(--muted);line-height:1.65}.ability .badge{position:absolute;bottom:20px;left:21px;padding:4px 9px}.products{background:#f9faf6}.product-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}.product{background:#fff;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);transition:.25s}.product:hover{transform:translateY(-6px)}.product:first-child{grid-row:span 2}.product img{height:210px;width:100%;object-fit:cover}.product:first-child img{height:310px}.product-body{padding:24px}.product h3{font-size:22px;margin:10px 0}.product p{font-size:14px;color:var(--muted);line-height:1.7}.compare{background:var(--dark);color:#fff}.compare .section-head p{color:#aebbae}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}.compare-side{padding:33px;border-radius:24px;border:1px solid #465549}.compare-side.good{background:linear-gradient(135deg,#273d2e,#17251c);border-color:#769d45}.compare-side h3{font-size:21px;margin-bottom:22px}.compare-row{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.13);padding:17px 0;color:#c2ccc0;font-size:14px}.compare-side.good .compare-row strong{color:var(--lime)}.compare-note{margin-top:21px;color:#a9b9a6;font-size:13px}.timeline{background:#fff}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}.steps:before{content:"";position:absolute;top:21px;left:8%;right:8%;height:2px;background:#d8e4bd}.step{position:relative;padding:0 16px;text-align:center}.step-num{margin:auto;width:43px;height:43px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-weight:800;position:relative;z-index:1}.step h3{font-size:16px;margin:20px 0 8px}.step p{font-size:13px;color:var(--muted)}.case{background:var(--deep);color:#fff}.case-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}.case-img{border-radius:28px;overflow:hidden}.case-img img{height:390px;width:100%;object-fit:cover}.case h2{font-size:clamp(30px,4vw,47px);line-height:1.2;margin:12px 0 20px}.case p{color:#b9c6b8}.case-stats{display:flex;gap:32px;margin:28px 0}.case-stats strong{display:block;color:var(--lime);font-size:29px}.case-stats span{font-size:12px;color:#aeb9ad}.story{background:#eef2e9}.story-box{display:grid;grid-template-columns:1fr 1.3fr;gap:35px;background:#fff;border-radius:28px;padding:34px;box-shadow:var(--shadow)}.story-box img{height:250px;width:100%;object-fit:cover;border-radius:20px}.story h3{font-size:25px;margin:10px 0 13px}.story p{color:var(--muted)}.story-meta{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}.reviews{background:#fff}.review-track{display:flex;gap:18px;overflow-x:auto;padding:5px 3px 18px;scroll-snap-type:x mandatory}.review{min-width:calc(33.333% - 12px);scroll-snap-align:start;border:1px solid var(--line);border-radius:22px;padding:25px}.review-top{display:flex;align-items:center;gap:12px;margin-bottom:17px}.avatar{width:43px;height:43px;border-radius:50%;background:linear-gradient(135deg,var(--lime),var(--amber));display:grid;place-items:center;font-weight:800}.stars{color:#e79d2d;letter-spacing:2px}.review p{font-size:14px;color:#526056;line-height:1.8}.review small{display:block;color:#929d94;margin-top:15px}.news{background:#f7f8f3}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:110px 115px 1fr 110px;gap:22px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line)}.news-date{font-size:13px;color:var(--muted)}.news-item h3{font-size:17px}.news-item p{font-size:13px;color:var(--muted);margin-top:3px}.news-item .btn{min-height:36px;padding:0 13px;font-size:12px}.assurance{background:#fff}.assure-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.assure-main,.assure-list{border-radius:25px;padding:32px;background:#f0f4e9}.assure-main h3{font-size:24px;margin:10px 0}.evidence{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.evidence span{background:#fff;border:1px solid var(--line);padding:10px 13px;border-radius:12px;font-size:13px}.assure-list{background:var(--dark);color:#fff}.assure-list li{list-style:none;padding:14px 0;border-bottom:1px solid #405044;font-size:14px}.assure-list li:last-child{border:0}.assure-list b{color:var(--lime);margin-right:9px}.quick{background:#edf1e7}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.quick-card{background:#fff;border-radius:18px;padding:22px}.quick-card b{display:block;font-size:16px;margin-bottom:8px}.quick-card span{color:var(--muted);font-size:13px}.faq{background:#f9faf6}.faq-wrap{max-width:880px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:22px 3px;font-size:17px;font-weight:700;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--lime-dark);font-size:25px;font-weight:400}details[open] summary:after{content:"−"}details p{padding:0 35px 22px 3px;color:var(--muted);font-size:14px;line-height:1.85}.contact{background:linear-gradient(130deg,#18271d,#2f4930);color:#fff}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}.contact h2{font-size:clamp(31px,4vw,50px);line-height:1.2;margin:12px 0 18px}.contact p{color:#bdcbbc}.contact-info{margin-top:28px;color:#dbe7d7;font-size:14px}.contact-info div{margin:9px 0}.contact-form{background:#fff;color:var(--ink);border-radius:27px;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 label em{color:#d26c35;font-style:normal}.field input,.field select,.field textarea{border:1px solid #d9e1d4;border-radius:11px;padding:11px 13px;background:#fbfcf9;color:var(--ink);min-width:0}.field textarea{min-height:91px;resize:vertical}.form-status{grid-column:1/-1;font-size:13px;min-height:22px}.form-status.success{color:#5d8a20}.form-status.error{color:#c5643d}.contact-form .btn{width:max-content}.footer{background:#101713;color:#b3c0b1;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}.footer .brand{color:#fff;margin-bottom:16px}.footer h3{color:#fff;font-size:15px;margin-bottom:15px}.footer a,.footer p{font-size:13px;display:block;margin:8px 0;color:#aebaae}.footer a:hover{color:var(--lime)}.copyright{border-top:1px solid #344238;margin-top:38px;padding-top:20px;font-size:12px;color:#849184;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
@media(max-width:1024px){.nav-links{gap:15px}.matrix-grid{grid-template-columns:repeat(3,1fr)}.product-grid{grid-template-columns:1fr 1fr}.product:first-child{grid-row:auto}.product:first-child img,.product img{height:220px}.review{min-width:calc(50% - 9px)}.steps{grid-template-columns:repeat(5,1fr)}}
@media(max-width:768px){.container,.hero-content{width:min(100% - 32px,var(--max))}.top-info{display:none}.navbar{height:65px}.navbar .brand{font-size:17px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:65px;left:0;right:0;background:#fff;padding:10px 20px 18px;box-shadow:0 15px 25px rgba(20,35,24,.1);flex-direction:column;align-items:stretch;gap:0}.nav-links.open{display:flex}.nav-links a{padding:12px 0;border-bottom:1px solid #edf0e9}.nav-links a.active:after{bottom:0;left:auto;width:30px}.navbar .btn{display:none}.hero{min-height:640px}.hero h1{font-size:44px;letter-spacing:-2px}.hero p{font-size:16px}.section{padding:75px 0}.section-head{display:block;margin-bottom:30px}.section-head p{margin-top:16px}.overview-grid,.dash-board,.case-layout,.story-box,.assure-grid,.contact-grid{grid-template-columns:1fr;gap:28px}.matrix-grid{grid-template-columns:repeat(2,1fr)}.ability:nth-child(2),.ability:nth-child(5){transform:none}.ability:nth-child(2):hover,.ability:nth-child(5):hover{transform:translateY(-5px)}.steps{grid-template-columns:1fr;gap:27px;text-align:left;padding-left:25px}.steps:before{left:45px;top:22px;bottom:22px;width:2px;height:auto;right:auto}.step{display:grid;grid-template-columns:43px 1fr;column-gap:20px;padding:0;text-align:left}.step-num{grid-row:span 2;margin:0}.step h3{margin:0}.story-box{padding:20px}.story-box img{height:220px}.quick-grid{grid-template-columns:1fr 1fr}.news-item{grid-template-columns:90px 95px 1fr}.news-item .btn{display:none}.footer-grid{grid-template-columns:1fr 1fr}.contact-grid{gap:35px}}
@media(max-width:520px){.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.hero h1{font-size:38px}.overview-list{grid-template-columns:1fr}.matrix-grid,.product-grid,.quick-grid{grid-template-columns:1fr}.product:first-child img,.product img{height:205px}.review{min-width:88%}.news-item{grid-template-columns:1fr;gap:3px;padding:18px 0}.news-item p{margin-bottom:5px}.contact-form{grid-template-columns:1fr;padding:20px}.field.full{grid-column:auto}.form-status{grid-column:auto}.contact-form .btn{width:100%}.footer-grid{grid-template-columns:1fr}.case-stats{gap:20px}.hero-controls{left:16px;bottom:25px}}