/* roulang page: index */
:root{
  --ink:#18231f;--ink-2:#314139;--muted:#66766d;--line:#dce4dc;
  --paper:#faf9f4;--mist:#eef3ec;--sand:#f3eee3;--dark:#13211c;
  --lime:#c9f24a;--lime-2:#b3df36;--orange:#eaa26a;--teal:#5b9584;
  --white:#fff;--radius:20px;--radius-sm:12px;--shadow:0 18px 45px rgba(21,38,30,.08);
  --container:1200px;
}
*{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 CJK SC",Arial,sans-serif;line-height:1.7;font-size:15px;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(201,242,74,.72);outline-offset:3px}.container{width:min(calc(100% - 48px),var(--container));margin:auto}.section{padding:94px 0;scroll-margin-top:128px}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#4d6432;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:2px;background:var(--lime-2)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,5.2vw,72px);line-height:1.12;letter-spacing:-.05em}h2{font-size:clamp(29px,3.2vw,46px);line-height:1.23;letter-spacing:-.04em;margin:12px 0 18px}h3{font-size:19px;line-height:1.35;margin-bottom:8px}p{color:var(--muted)}.lead{font-size:17px;max-width:670px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:42px}.section-head p{max-width:500px;margin-bottom:0}.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 21px;border:1px solid transparent;border-radius:999px;font-weight:800;transition:.2s ease}.btn-primary{background:var(--lime);color:#1b281b}.btn-primary:hover{background:#dafb6c;transform:translateY(-2px);box-shadow:0 10px 20px rgba(174,210,56,.25)}.btn-primary:active{transform:translateY(0)}.btn-outline{color:var(--white);border-color:rgba(255,255,255,.6)}.btn-outline:hover{background:rgba(255,255,255,.12)}.tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#e6eed8;color:#42572a;font-size:12px;font-weight:800}.icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#e7f0d6;color:#49682b;font-size:20px;font-weight:900}
.header{position:sticky;top:0;z-index:50;background:rgba(250,249,244,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(220,228,220,.88)}.topbar{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:900;font-size:21px;letter-spacing:-.05em;display:flex;align-items:center;gap:9px}.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--lime);position:relative}.brand-mark:after{content:"";position:absolute;width:10px;height:15px;border:2px solid var(--dark);border-radius:5px;left:8px;top:5px}.top-meta{display:flex;align-items:center;gap:22px;font-size:13px;color:var(--ink-2)}.top-meta strong{color:var(--ink)}.navrow{border-top:1px solid var(--line);min-height:48px;display:flex;align-items:center;justify-content:space-between}.navlinks{display:flex;gap:2px;align-items:center}.navlinks a{padding:12px 15px;color:var(--ink-2);font-size:14px;font-weight:700;border-radius:8px}.navlinks a:hover,.navlinks a.active{background:#e8eee3;color:#26371c}.menu-toggle{display:none;border:0;background:transparent;width:44px;height:44px;font-size:24px}.mobile-panel{display:none}
.hero{position:relative;min-height:650px;color:var(--white);overflow:hidden;background:var(--dark)}.slides,.slide{position:absolute;inset:0}.slide{opacity:0;transition:opacity .65s ease;background-size:cover;background-position:center}.slide.active{opacity:1}.slide:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,24,18,.9) 0%,rgba(11,24,18,.62) 48%,rgba(11,24,18,.22) 100%)}.hero-content{position:relative;z-index:2;min-height:650px;display:flex;align-items:center;padding:74px 0}.hero-copy{max-width:760px}.hero .eyebrow{color:var(--lime)}.hero .eyebrow:before{background:var(--lime)}.hero p{color:rgba(255,255,255,.79);font-size:17px;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:42px}.hero-points div{padding-left:13px;border-left:2px solid var(--lime);font-size:14px}.hero-controls{position:absolute;z-index:4;bottom:35px;left:50%;transform:translateX(-50%);width:min(calc(100% - 48px),var(--container));display:flex;justify-content:space-between;align-items:center}.dots{display:flex;gap:8px}.dot{border:0;width:32px;height:5px;padding:0;border-radius:5px;background:rgba(255,255,255,.42)}.dot.active{background:var(--lime)}.arrow-wrap{display:flex;gap:8px}.round-btn{width:44px;height:44px;border:1px solid rgba(255,255,255,.48);color:#fff;background:rgba(12,30,22,.25);border-radius:50%;font-size:20px}.round-btn:hover{background:var(--lime);color:var(--dark);border-color:var(--lime)}
.intro-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:70px;align-items:center}.image-frame{position:relative}.image-frame img{width:100%;height:455px;object-fit:cover;border-radius:var(--radius)}.image-note{position:absolute;bottom:-24px;right:-20px;width:220px;padding:22px;background:var(--lime);border-radius:16px;color:var(--dark);box-shadow:var(--shadow)}.image-note strong{display:block;font-size:31px;line-height:1}.detail-list{padding:0;margin:25px 0 0;list-style:none;border-top:1px solid var(--line)}.detail-list li{display:grid;grid-template-columns:115px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}.detail-list b{font-size:14px}.scenes{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:16px}.scene{min-height:215px;padding:26px;border-radius:var(--radius);background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column;justify-content:end;transition:.22s}.scene:first-child{color:#fff;background:linear-gradient(0deg,rgba(16,34,25,.88),rgba(16,34,25,.15)),url('/assets/images/14b1d20ed44f686c.webp') center/cover}.scene:hover,.service-card:hover,.review:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.scene p{margin:0;font-size:13px}.scene:first-child p{color:rgba(255,255,255,.78)}
.matrix{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}.service-card{border-radius:var(--radius);padding:30px;background:var(--white);border:1px solid var(--line);transition:.22s;min-height:260px;display:flex;flex-direction:column}.service-card.featured{background:var(--dark);color:white;grid-row:span 2;justify-content:end;background-image:linear-gradient(0deg,rgba(14,29,23,.87),rgba(14,29,23,.15)),url('/assets/images/2d3059d65fe7426b.webp');background-size:cover;background-position:center}.service-card.featured p{color:rgba(255,255,255,.75)}.service-card .text-link{margin-top:auto;color:#567c2b;font-weight:800}.service-card.featured .text-link{color:var(--lime)}
.adv-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}.adv{padding:24px;border-radius:17px;background:var(--white);border:1px solid var(--line)}.adv:nth-child(1){grid-row:span 2;background:#dfeccf}.adv:nth-child(1) .icon{background:var(--dark);color:var(--lime)}.adv p{font-size:13px;margin:8px 0 0}.adv-number{font-size:42px;font-weight:900;line-height:1;color:#557036;margin:25px 0 8px}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}.process:before{content:"";position:absolute;top:28px;left:10%;right:10%;height:1px;background:var(--line)}.step{position:relative;padding:0 15px}.step-no{position:relative;z-index:1;width:57px;height:57px;border-radius:50%;display:grid;place-items:center;background:var(--dark);color:var(--lime);font-weight:900;margin-bottom:20px}.step p{font-size:13px}
.compat-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center}.compat-image img{width:100%;height:380px;object-fit:cover;border-radius:var(--radius)}.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.spec{padding:18px;border-radius:14px;background:#fff;border:1px solid var(--line)}.spec span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.spec b{font-size:15px}.dark-case{background:var(--dark);color:#fff;overflow:hidden}.dark-case p{color:rgba(255,255,255,.67)}.case-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}.case-numbers{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.13);margin-top:30px}.case-numbers div{padding:21px;background:var(--dark)}.case-numbers strong{display:block;color:var(--lime);font-size:31px}.case-photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.case-photo-grid img{height:190px;width:100%;object-fit:cover;border-radius:15px}.case-photo-grid img:first-child{grid-row:span 2;height:394px}
.ops-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px}.ops-list{display:grid;gap:12px}.ops-item{padding:18px 18px 18px 64px;border-radius:14px;background:var(--white);border:1px solid var(--line);position:relative}.ops-item:before{content:attr(data-no);position:absolute;left:19px;top:18px;font-weight:900;color:#6d9142}.stories{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.story{overflow:hidden;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}.story img{width:100%;height:200px;object-fit:cover}.story-body{padding:20px}.story q{font-size:16px;font-weight:800;line-height:1.55}.story small{display:block;margin-top:12px;color:var(--muted)}
.statbar{background:#dceacb}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.stat{border-left:1px solid rgba(45,77,36,.2);padding-left:20px}.stat strong{display:block;font-size:40px;line-height:1;color:#3d5c25}.stat span{font-size:13px;color:#496137}
.reviews{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:18px}.review{border-radius:var(--radius);padding:28px;background:#fff;border:1px solid var(--line);transition:.2s}.review:first-child{background:#f2eadc}.review q{display:block;font-size:17px;font-weight:700;line-height:1.65}.review footer{margin-top:20px;color:var(--muted);font-size:13px}
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{padding:24px;border-top:3px solid var(--lime-2);background:#fff;border-radius:0 0 var(--radius) var(--radius);border:1px solid var(--line)}.news-card time{font-size:12px;color:var(--muted)}.news-card p{font-size:13px;margin-bottom:0}
.partner-wall{display:flex;flex-wrap:wrap;gap:12px}.partner-wall span{padding:15px 20px;background:var(--white);border:1px solid var(--line);border-radius:10px;font-weight:800;color:var(--ink-2)}.faq-wrap{max-width:900px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:64px;border:0;background:transparent;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:17px;font-weight:800;color:var(--ink);padding:14px 0}.faq-q i{font-style:normal;color:#5d8432;font-size:24px;transition:.2s}.faq-a{display:none;padding:0 44px 19px 0}.faq-a p{margin:0}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q i{transform:rotate(45deg)}
.guarantees{display:grid;grid-template-columns:repeat(5,1fr);gap:15px}.guarantee{text-align:center;padding:20px 12px;background:#fff;border:1px solid var(--line);border-radius:14px}.guarantee b{display:block;margin:9px 0 3px}.guarantee small{color:var(--muted)}
.contact{background:linear-gradient(115deg,#17271f,#294434);color:#fff}.contact p{color:rgba(255,255,255,.72)}.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}.contact-list{margin-top:30px;display:grid;gap:13px}.contact-list a,.contact-list span{color:#fff;font-weight:700}.form{padding:27px;background:#fff;color:var(--ink);border-radius:var(--radius)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:800}.field input,.field select,.field textarea{width:100%;min-height:45px;padding:10px 12px;border:1px solid #ced8cf;border-radius:10px;color:var(--ink);background:#fff}.field textarea{min-height:82px;resize:vertical}.privacy{font-size:12px;color:var(--muted);margin:13px 0}.form-status{display:none;margin-top:13px;padding:10px;border-radius:8px;background:#e5f3d0;color:#42611f;font-weight:700}
.footer{background:#101b16;color:#dce6dd;padding:56px 0 25px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:35px}.footer .brand{color:#fff}.footer p{color:#a9b8ad;font-size:13px}.footer-links{display:grid;gap:8px}.footer-links a:hover{color:var(--lime)}.copyright{border-top:1px solid rgba(255,255,255,.13);padding-top:21px;margin-top:40px;color:#9bac9f;font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1023px){.top-meta{gap:12px}.navlinks a{padding:12px 9px}.intro-grid,.compat-grid,.case-grid,.contact-grid,.ops-layout{gap:32px}.adv-grid{grid-template-columns:repeat(2,1fr)}.adv:nth-child(1){grid-row:auto}.stories,.news{grid-template-columns:repeat(2,1fr)}.story:last-child{grid-column:span 2}.guarantees{grid-template-columns:repeat(3,1fr)}}
@media(max-width:767px){.container{width:min(calc(100% - 32px),var(--container))}.section{padding:62px 0}.header{position:sticky}.topbar{min-height:62px}.top-meta,.navrow{display:none}.menu-toggle{display:block;margin-left:auto}.mobile-panel{display:none;border-top:1px solid var(--line);padding:10px 16px 16px;background:var(--paper)}.mobile-panel.open{display:grid}.mobile-panel a{min-height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line);font-weight:800}.hero,.hero-content{min-height:620px}.hero-content{padding:66px 0 90px}.hero p{font-size:15px}.hero-points{gap:12px;margin-top:28px}.hero-controls{bottom:20px}.section-head{display:block;margin-bottom:30px}.section-head p{margin-top:12px}.intro-grid,.compat-grid,.case-grid,.contact-grid,.ops-layout{grid-template-columns:1fr}.image-frame img{height:340px}.image-note{right:10px;bottom:-16px}.scenes,.matrix,.adv-grid,.stories,.reviews,.news{grid-template-columns:1fr}.scene{min-height:180px}.service-card.featured{grid-row:auto;min-height:310px}.process{grid-template-columns:1fr;gap:0}.process:before{top:0;bottom:0;left:28px;right:auto;width:1px;height:auto}.step{padding:0 0 22px 75px}.step-no{position:absolute;left:0;top:0;margin:0}.step p{margin-bottom:0}.specs{grid-template-columns:1fr}.case-photo-grid{margin-top:8px}.case-photo-grid img:first-child{height:270px}.case-photo-grid img{height:130px}.stats{grid-template-columns:repeat(2,1fr);gap:25px 10px}.stat{padding-left:12px}.stat strong{font-size:33px}.story:last-child{grid-column:auto}.guarantees{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr;gap:26px}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}}
@media(max-width:390px){h1{font-size:38px}.brand{font-size:19px}.hero-actions .btn{width:100%}.guarantees{grid-template-columns:1fr}.case-numbers{grid-template-columns:1fr}.stats{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}