/* roulang page: index */
:root{
--pine:#2C6A5A;--pine-deep:#215448;--pine-soft:#3d8573;
--copper:#B07A45;--copper-deep:#8e6236;--ink:#2B3033;--ink-2:#3a4044;
--rice:#F3EFE6;--concrete:#E7E2D6;--card:#FBF9F4;--white:#fff;
--amber:#C9941A;--text:#2B3033;--muted:#5d656a;--line:#d8d2c4;
--radius:12px;--radius-sm:8px;--shadow:0 10px 18px rgba(43,48,51,.08);
--shadow-hover:0 14px 22px rgba(43,48,51,.12);
--space-xl:88px;--space-lg:64px;--space-md:56px;--space-sm:40px;--space-xs:24px;
--container:1240px;--nav-main:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;color:var(--text);background:var(--rice);overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--pine);text-decoration:none;transition:.2s ease}
button,input,select,textarea{font-family:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:700;line-height:1.25;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:min(100% - 40px,var(--container));margin:0 auto}
.skip{position:absolute;left:-999px;top:0}
.skip:focus{left:16px;top:16px;z-index:80;background:#fff;padding:8px 12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:2px solid transparent;transition:.2s ease;text-align:center}
.btn-primary{background:var(--pine);color:#fff;border-color:var(--pine)}
.btn-primary:hover{background:var(--pine-deep);border-color:var(--pine-deep);box-shadow:0 0 0 2px rgba(176,122,69,.35);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--pine);border-color:var(--copper)}
.btn-line:hover{background:rgba(44,106,90,.06);box-shadow:0 0 0 2px rgba(176,122,69,.28);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.faq-btn:focus-visible,.tab-btn:focus-visible,.dot:focus-visible,.hero-nav button:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
.badge{display:inline-flex;align-items:center;gap:6px;min-height:28px;padding:0 10px;border-radius:6px;background:rgba(44,106,90,.1);color:var(--pine);font-size:12px;font-weight:600}
.section{padding:var(--space-lg) 0;position:relative}
.section-alt{background:var(--concrete)}
.section-card{background:var(--card)}
.kicker{color:var(--copper);font-size:13px;font-weight:700;letter-spacing:.12em;margin-bottom:10px}
.lead{color:var(--muted);max-width:760px}
.sec-head{display:flex;justify-content:space-between;gap:32px;align-items:end;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3vw,36px)}
.grid-line{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:16px 0 0}

/* Header */
.site-header{position:relative;z-index:50}
.topbar{background:var(--ink);color:#d7ddd9;font-size:13px;min-height:36px;display:flex;align-items:center}
.topbar .container{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.topbar a{color:#e8ece9}
.topbar a:hover{color:#fff}
.top-trust{text-align:center;color:#c5b49a}
.top-actions{display:flex;justify-content:flex-end;gap:18px}
.mainbar{background:var(--card);border-bottom:1px solid var(--line);min-height:var(--nav-main);display:flex;align-items:center;transition:.2s ease}
.mainbar.is-stuck{position:sticky;top:0;z-index:60;box-shadow:var(--shadow)}
.mainbar .container{display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;min-height:44px}
.logo-mark{width:36px;height:36px;border:1.5px solid var(--pine);border-radius:6px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;padding:5px;background:var(--rice)}
.logo-mark span{background:var(--pine);display:block}
.logo-mark span:nth-child(2){background:var(--copper)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px}
.logo-text small{font-size:11px;color:var(--muted);font-weight:500}
.nav-list{display:flex;gap:6px;margin-left:auto;margin-right:16px}
.nav-list a{position:relative;display:flex;align-items:center;min-height:44px;padding:0 10px;color:var(--ink);font-size:14px;font-weight:600}
.nav-list a::after{content:"";position:absolute;left:10px;right:10px;bottom:8px;height:2px;background:transparent}
.nav-list a:hover,.nav-list a.is-active{color:var(--pine)}
.nav-list a.is-active::after,.nav-list a:hover::after{background:var(--copper)}
.nav-cta{white-space:nowrap}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{width:18px;height:2px;background:var(--ink);display:block}
.drawer{position:fixed;inset:0;background:rgba(43,48,51,.46);opacity:0;pointer-events:none;transition:.2s ease;z-index:70}
.drawer.open{opacity:1;pointer-events:auto}
.drawer-panel{position:absolute;right:0;top:0;bottom:0;width:min(86vw,360px);background:var(--card);padding:24px;transform:translateX(100%);transition:.25s ease;overflow:auto}
.drawer.open .drawer-panel{transform:none}
.drawer-panel a{display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:600}
.drawer-meta{margin:18px 0;color:var(--muted);font-size:14px}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 108px);background:var(--ink);color:#fff}
.hero-track{position:relative;min-height:inherit}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .45s ease}
.hero-slide.is-on{opacity:1;visibility:visible;z-index:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(43,48,51,.82) 0%,rgba(43,48,51,.55) 46%,rgba(44,106,90,.28) 100%)}
.hero-content{position:relative;z-index:2;min-height:inherit;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:56px 0}
.hero h1{color:#fff;font-size:clamp(28px,4vw,42px);max-width:16ch}
.hero .brand-name{color:#e7c9a2;font-size:14px;font-weight:700;margin-bottom:12px}
.hero-copy{color:#e6e2d8;margin:18px 0 28px;max-width:58ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-panel{background:rgba(251,249,244,.94);color:var(--ink);border-radius:12px;padding:22px;box-shadow:var(--shadow);border:1px solid rgba(176,122,69,.28)}
.hero-panel h3{font-size:18px;margin-bottom:8px}
.hero-panel p{color:var(--muted);font-size:14px;margin-bottom:14px}
.kpi-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.kpi{background:var(--rice);border:1px solid var(--line);border-radius:8px;padding:10px 12px}
.kpi b{display:block;font-variant-numeric:tabular-nums;font-size:20px;color:var(--pine)}
.kpi span{font-size:12px;color:var(--muted)}
.hero-nav{position:absolute;z-index:3;left:0;right:0;bottom:22px}
.hero-nav .container{display:flex;align-items:center;justify-content:space-between;gap:12px}
.floor-dots{display:flex;gap:8px}
.dot{min-width:44px;min-height:36px;border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;border-radius:6px;font-size:12px;font-weight:700}
.dot.is-on{background:var(--copper);border-color:var(--copper)}
.hero-arrows{display:flex;gap:8px}
.hero-arrows button{width:44px;height:44px;border-radius:8px;border:1px solid rgba(255,255,255,.4);background:rgba(43,48,51,.35);color:#fff;font-size:18px}

/* Intro */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.intro-grid img{width:100%;height:460px;object-fit:cover;border-radius:12px;box-shadow:var(--shadow)}
.verify{margin-top:20px;padding:16px;border-left:3px solid var(--copper);background:#fff;border-radius:0 10px 10px 0;color:var(--muted);font-size:14.5px}
.role-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.role-list span{background:#fff;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:13px}

/* Modules */
.module-switch{display:grid;grid-template-columns:220px 1fr;gap:24px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.tab-col{background:var(--ink);padding:12px}
.tab-btn{width:100%;text-align:left;background:transparent;border:0;color:#d7ddd9;min-height:52px;padding:8px 14px;border-radius:8px;font-weight:600}
.tab-btn.is-on,.tab-btn:hover{background:var(--pine);color:#fff}
.tab-panel{display:none;padding:28px}
.tab-panel.is-on{display:block}
.tab-panel h3{font-size:26px;margin-bottom:8px}
.points{margin:16px 0 22px;display:grid;gap:10px}
.points li{padding-left:18px;position:relative;color:var(--muted)}
.points li::before{content:"";width:7px;height:7px;background:var(--copper);position:absolute;left:0;top:10px;border-radius:1px}

/* Matrix */
.matrix{display:grid;grid-template-columns:1.4fr 1fr 1fr;grid-template-rows:auto auto;gap:16px}
.mx{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:var(--shadow);transition:.2s ease;min-height:180px;display:flex;flex-direction:column;gap:8px}
.mx:hover{transform:translateY(-3px);border-color:var(--copper);box-shadow:var(--shadow-hover)}
.mx.featured{grid-row:1 / span 2;background:var(--pine);color:#fff;min-height:380px}
.mx.featured h3,.mx.featured .no{color:#fff}
.mx .no{font-variant-numeric:tabular-nums;color:var(--copper);font-size:13px;font-weight:700}
.sketch{height:64px;border-radius:8px;background:repeating-linear-gradient(90deg,rgba(44,106,90,.12) 0 8px,transparent 8px 16px);border:1px dashed rgba(44,106,90,.25);margin-top:auto}
.mx.featured .sketch{background:repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 8px,transparent 8px 16px);border-color:rgba(255,255,255,.25)}

/* Hot */
.hot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.hot-card{background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:.2s ease;display:flex;flex-direction:column}
.hot-card:hover{transform:translateY(-4px);border-color:var(--copper)}
.hot-card .media{height:340px;overflow:hidden}
.hot-card img{width:100%;height:100%;object-fit:cover}
.hot-card .body{padding:16px 16px 20px}
.hot-card h3{font-size:20px;margin:6px 0}
.hot-card p{color:var(--muted);font-size:14.5px;margin-bottom:12px}

/* Scenes */
.scene-rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,1fr);gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
.scene{scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-width:280px}
.scene img{height:190px;width:100%;object-fit:cover}
.scene .pad{padding:16px}
.scene h3{font-size:18px;margin-bottom:8px}
.scene p{color:var(--muted);font-size:14.5px}

/* Demo */
.demo-stage{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.screen{background:var(--ink);border-radius:12px;padding:14px;box-shadow:var(--shadow)}
.screen-top{display:flex;gap:6px;margin-bottom:10px}
.screen-top i{width:8px;height:8px;border-radius:50%;background:#6d7376;display:block}
.screen img{width:100%;height:430px;object-fit:cover;border-radius:8px;display:none}
.screen img.is-on{display:block}
.demo-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.demo-tabs button{min-height:40px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:0 12px;font-weight:600;color:var(--ink)}
.demo-tabs button.is-on{background:var(--pine);color:#fff;border-color:var(--pine)}

/* Dark */
.dark-band{background:var(--ink);color:#ece8df;padding:72px 0;position:relative;overflow:hidden}
.dark-band .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22}
.dark-wrap{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.2fr;gap:36px}
.dark-band h2{color:#fff;font-size:clamp(26px,3vw,38px)}
.slice{border-top:1px solid rgba(176,122,69,.35);padding:16px 0}
.slice b{color:#e7c9a2;display:block;margin-bottom:4px}

/* Cases magazine */
.mag{display:grid;grid-template-columns:1.4fr .8fr;gap:16px}
.mag-main,.mag-side article{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
.mag-main img{height:320px;width:100%;object-fit:cover}
.mag-side{display:grid;gap:16px}
.mag-side img{height:120px;width:100%;object-fit:cover}
.case-pad{padding:16px}
.case-pad h3{font-size:20px;margin:6px 0}
.nums{display:flex;gap:16px;margin-top:10px;font-variant-numeric:tabular-nums;color:var(--pine);font-weight:700}

/* Stories */
.story{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin-bottom:40px}
.story.reverse{direction:rtl}
.story.reverse > *{direction:ltr}
.story img{height:320px;width:100%;object-fit:cover;border-radius:12px}

/* Stats */
.stats{background:linear-gradient(180deg,var(--concrete),var(--rice));padding:48px 0}
.stat-row{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px;text-align:center}
.stat b{display:block;font-size:28px;font-variant-numeric:tabular-nums;color:var(--pine)}
.stat span{font-size:13px;color:var(--muted)}

/* Reviews masonry */
.wall{columns:3;column-gap:16px}
.rev{break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:16px;box-shadow:var(--shadow)}
.stars{color:var(--copper);letter-spacing:2px;margin-bottom:8px}
.rev h3{font-size:15px;margin-bottom:6px}
.rev p{color:var(--muted);font-size:14.5px}

/* Voices */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.voice{background:var(--ink);color:#ece8df;border-radius:12px;padding:22px;min-height:240px}
.voice h3{color:#e7c9a2;font-size:16px;margin-bottom:10px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--pine);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;margin-bottom:12px}

/* Pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.price.rec{border:2px solid var(--pine);transform:translateY(-8px);background:var(--card)}
.price .tag{align-self:flex-start;background:var(--copper);color:#fff;font-size:12px;padding:4px 8px;border-radius:4px;margin-bottom:8px}
.price h3{font-size:22px}
.fee{font-size:28px;font-variant-numeric:tabular-nums;color:var(--pine);margin:10px 0}
.fee small{font-size:13px;color:var(--muted);font-weight:500}
.price ul{margin:8px 0 18px}
.price li{padding:6px 0;border-bottom:1px dashed var(--line);color:var(--muted);font-size:14.5px}
.price .btn{margin-top:auto}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.news{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.news img{height:150px;width:100%;object-fit:cover}
.news .pad{padding:14px}
.news h3{font-size:16px;margin-bottom:8px}
.news p{font-size:14px;color:var(--muted)}

/* FAQ */
.faq-list{display:grid;gap:0;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:#fff}
.faq-btn{width:100%;display:flex;align-items:center;gap:12px;background:transparent;border:0;min-height:64px;padding:12px 8px;text-align:left;font-size:16px;font-weight:700;color:var(--ink)}
.faq-no{color:var(--copper);font-variant-numeric:tabular-nums;width:36px}
.faq-icon{margin-left:auto;width:28px;height:28px;border:1px solid var(--line);border-radius:4px;display:grid;place-items:center}
.faq-panel{display:none;background:var(--concrete);padding:0 16px 16px 56px;color:var(--muted)}
.faq-item.open .faq-panel{display:block}

/* CTA */
.cta{background:var(--pine);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px}
.cta h2{color:#fff;font-size:clamp(26px,3vw,36px)}
.cta p{color:#e6efe9;margin:12px 0 0}
form{background:var(--card);color:var(--ink);border-radius:12px;padding:22px;display:grid;gap:12px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:grid;gap:6px;font-size:13px;font-weight:600}
input,select{min-height:44px;border:1px solid #cfc8b8;background:var(--rice);border-radius:8px;padding:0 12px}
input.error,select.error{border-color:var(--amber);box-shadow:0 0 0 3px rgba(201,148,26,.15)}
.checks{display:flex;flex-wrap:wrap;gap:10px}
.checks label{display:flex;align-items:center;gap:6px;font-weight:500}
.form-note{font-size:13px;color:var(--muted)}
.ok{display:none;background:#e8f3ee;border:1px solid var(--pine);color:var(--pine-deep);padding:10px 12px;border-radius:8px}

/* Footer */
.site-footer{background:var(--ink);color:#c9ceca;padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1.2fr 1fr;gap:24px;padding-bottom:28px;border-bottom:1px solid rgba(176,122,69,.35)}
.site-footer h3{color:#fff;font-size:16px;margin-bottom:12px}
.site-footer a{color:#d7ddd9}
.site-footer a:hover{color:#fff}
.foot-copy{padding-top:16px;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:1280px){
.hero-content{gap:24px}
}
@media (max-width:1024px){
.nav-list{display:none}
.burger{display:flex}
.topbar .container{grid-template-columns:1fr auto;gap:8px}
.top-trust{display:none}
.hero-content,.intro-grid,.module-switch,.demo-stage,.dark-wrap,.mag,.story,.cta-grid{grid-template-columns:1fr}
.matrix{grid-template-columns:1fr 1fr}
.mx.featured{grid-row:auto;min-height:240px}
.hot-grid,.voices,.price-grid,.news-grid{grid-template-columns:1fr 1fr}
.stat-row{grid-template-columns:repeat(3,1fr)}
.wall{columns:2}
.hero{min-height:auto}
.hero-content{padding:36px 0 92px}
.hero-slide img{min-height:620px}
.story.reverse{direction:ltr}
.foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.sec-head{flex-direction:column;align-items:flex-start}
.hot-grid,.voices,.price-grid,.news-grid,.form-row,.stat-row{grid-template-columns:1fr}
.stat-row{grid-template-columns:1fr 1fr}
.wall{columns:1}
.price.rec{transform:none}
.hero-panel{order:-1}
.intro-grid img,.story img,.screen img{height:240px}
.hot-card .media{height:240px}
.top-actions{display:none}
.foot-grid{grid-template-columns:1fr}
.section{padding:56px 0}
}
@media (max-width:520px){
.container{width:min(100% - 28px,var(--container))}
.hero-actions,.cta-grid .btn{width:100%}
.btn{width:100%}
.nav-cta{display:none}
.mainbar .container{justify-content:space-between}
.hero h1{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{transition:none!important;animation:none!important}
}