/* roulang page: index */
:root{
            --ink:#191714;
            --muted:#706b64;
            --paper:#f8f6f1;
            --cream:#efebe3;
            --line:#ded8ce;
            --orange:#d97937;
            --orange-dark:#a84e22;
            --coral:#c95d55;
            --white:#fffdfa;
            --shadow:0 18px 50px rgba(45,34,24,.09);
            --radius:16px;
            --max:1220px;
        }
        *{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:1.72;font-size:16px}
        img{max-width:100%;display:block}
        a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,border-color .25s ease}
        button,input,select,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(217,121,55,.45);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange-dark);font-size:12px;letter-spacing:.14em;font-weight:800;text-transform:uppercase}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--orange)}
        h1,h2,h3,h4,p{margin-top:0}
        h1,h2,h3,h4{line-height:1.18;letter-spacing:-.045em}
        h1{font-size:clamp(44px,6.2vw,82px);margin:18px 0 24px;font-weight:900;max-width:780px}
        h2{font-size:clamp(32px,4vw,54px);margin:14px 0 18px;font-weight:900}
        h3{font-size:22px;margin:0 0 10px}
        .lead{font-size:18px;color:var(--muted);max-width:700px}
        .section{padding:112px 0;border-top:1px solid var(--line)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:48px}
        .section-head p{max-width:520px;color:var(--muted);margin:0}
        .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:10px;border:1px solid var(--ink);font-weight:800;gap:10px;transition:.25s ease}
        .button:hover{transform:translateY(-3px);box-shadow:0 8px 18px rgba(25,23,20,.12)}
        .button.primary{background:var(--orange);border-color:var(--orange);color:#fff}
        .button.primary:hover{background:var(--orange-dark);border-color:var(--orange-dark)}
        .button.light{background:var(--white)}
        .button.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
        .tag{display:inline-block;padding:5px 10px;border-radius:6px;background:#f3d8c4;color:#8b431f;font-size:12px;font-weight:800}
        .topbar{background:var(--ink);color:#f7eee5;font-size:13px;text-align:center;padding:8px}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(248,246,241,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,216,206,.8)}
        .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{font-weight:900;font-size:20px;letter-spacing:-.06em;white-space:nowrap}
        .brand-mark{display:inline-flex;width:28px;height:28px;background:var(--orange);color:white;border-radius:8px;align-items:center;justify-content:center;margin-right:8px;font-size:14px}
        .main-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:700}
        .main-nav a{color:#5d574f;position:relative}
        .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;background:var(--orange);transition:.25s}
        .main-nav a:hover,.main-nav a.active{color:var(--ink)}
        .main-nav a:hover:after,.main-nav a.active:after{right:0}
        .nav-action{padding:10px 16px;border-radius:8px;background:var(--ink);color:#fff!important}
        .nav-action:after{display:none}
        .menu-toggle{display:none;background:none;border:0;font-size:24px}
        .hero{padding:82px 0 95px;position:relative;overflow:hidden;background:var(--paper)}
        .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(248,246,241,.98) 0%,rgba(248,246,241,.86) 42%,rgba(248,246,241,.2) 100%),url('/assets/images/43cef69c061118ec.jpg') center/cover;opacity:.8;z-index:0}
        .hero-inner{position:relative;z-index:1}
        .hero-copy{max-width:800px}
        .hero .lead{font-size:19px;max-width:720px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:32px 0 46px}
        .hero-meta{display:flex;flex-wrap:wrap;gap:28px;color:var(--muted);font-size:13px}
        .hero-meta strong{display:block;color:var(--ink);font-size:25px;line-height:1.1}
        .hero-stage{margin-top:68px;background:var(--ink);color:#fff;border-radius:20px;padding:25px;box-shadow:var(--shadow);display:grid;grid-template-columns:1.1fr .9fr;gap:24px;min-height:280px}
        .script-window{background:#2a2723;border:1px solid #51483e;border-radius:12px;padding:24px}
        .window-top{display:flex;gap:7px;margin-bottom:25px}
        .window-top i{display:block;width:8px;height:8px;border-radius:50%;background:#ca6c48}
        .script-label{color:#e8a267;font-size:12px;letter-spacing:.1em}
        .script-window h3{font-size:30px;color:#fff;margin:17px 0}
        .script-line{height:9px;background:#62594e;border-radius:8px;margin:13px 0;width:85%}
        .script-line.short{width:53%}
        .stage-side{display:flex;flex-direction:column;justify-content:space-between;padding:8px}
        .timecode{font-family:monospace;color:#f2b17f;font-size:14px}
        .stage-side p{color:#c7bdb1}
        .progress{height:5px;background:#534b43;border-radius:5px;margin:15px 0}
        .progress span{display:block;background:var(--orange);height:100%;width:62%;border-radius:5px}
        .numbered-grid{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:0;border-top:1px solid var(--line)}
        .value-item{padding:30px 28px 15px 0;border-right:1px solid var(--line);min-height:190px}
        .value-item:not(:first-child){padding-left:28px}
        .value-item:last-child{border-right:0}
        .value-num{font-size:44px;color:var(--orange);font-weight:900;line-height:1;margin-bottom:25px}
        .value-item p{color:var(--muted);font-size:14px;max-width:250px}
        .feature-layout{display:grid;grid-template-columns:280px 1fr;gap:55px}
        .feature-index{border-left:2px solid var(--orange);padding-left:20px;height:max-content}
        .feature-index span{display:block;color:var(--muted);font-size:13px;margin-bottom:16px}
        .feature-index strong{font-size:23px;display:block}
        .feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
        .feature-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:190px;transition:.3s}
        .feature-card:hover{border-color:var(--orange);transform:translateY(-4px);box-shadow:var(--shadow)}
        .feature-card:nth-child(2){background:#f1e5d8;margin-top:30px}
        .feature-card:nth-child(3){background:#292521;color:#fff}
        .feature-card:nth-child(3) p{color:#c9c0b7}
        .feature-card p{color:var(--muted);font-size:14px}
        .feature-card .tag{margin-bottom:25px}
        .scene-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
        .scene-main{background:var(--ink);color:#fff;min-height:380px;border-radius:18px;padding:35px;position:relative;overflow:hidden}
        .scene-main:after{content:"";position:absolute;right:-80px;bottom:-100px;width:330px;height:330px;background:url('/assets/images/d5e98b4876a99369.jpg') center/cover;border-radius:50%;opacity:.45}
        .scene-main p{color:#d0c7bf;max-width:450px}
        .scene-main .scene-note{position:absolute;bottom:30px;left:35px;right:35px;border-top:1px solid #665d55;padding-top:16px;color:#f0ad78;font-size:13px;z-index:1}
        .scene-list{display:grid;gap:12px}
        .scene-row{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px 23px;display:flex;justify-content:space-between;gap:18px}
        .scene-row p{font-size:13px;color:var(--muted);margin:0;max-width:270px}
        .flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:2px solid var(--orange);padding-top:28px}
        .flow-step{padding-right:20px;position:relative}
        .flow-step:before{content:"";width:12px;height:12px;background:var(--orange);border-radius:50%;position:absolute;top:-35px;left:0}
        .flow-step:not(:last-child){border-right:1px solid var(--line);margin-right:20px}
        .flow-step b{font-size:13px;color:var(--orange-dark)}
        .flow-step p{font-size:14px;color:var(--muted);padding-right:18px}
        .demo{background:#25211d;color:#fff;border-radius:20px;padding:34px;display:grid;grid-template-columns:.8fr 1.2fr;gap:35px;overflow:hidden}
        .demo-copy p{color:#cfc5bb}
        .demo-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0}
        .demo-tab{border:1px solid #65594e;background:transparent;color:#d8cfc5;padding:9px 13px;border-radius:7px}
        .demo-tab.active,.demo-tab:hover{background:var(--orange);border-color:var(--orange);color:#fff}
        .demo-board{background:#f4f0e9;color:var(--ink);border-radius:12px;padding:25px;min-height:300px;position:relative}
        .board-head{display:flex;justify-content:space-between;border-bottom:1px solid #d4ccc0;padding-bottom:15px;margin-bottom:22px}
        .board-head span{font-size:12px;color:var(--orange-dark);font-weight:800}
        .board-card{border-left:4px solid var(--orange);background:#fffdfa;padding:16px;margin:12px 0;box-shadow:0 5px 15px rgba(40,30,20,.06)}
        .board-card small{color:#8b8379}
        .case-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
        .case-feature{min-height:410px;border-radius:18px;padding:30px;color:#fff;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(0deg,rgba(23,19,16,.9),rgba(23,19,16,.05)),url('/assets/images/af0b160e5e5c79af.jpg') center/cover}
        .case-feature p{color:#e6dbd0;max-width:470px}
        .case-stack{display:grid;gap:14px}
        .case-small{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;justify-content:space-between;gap:16px}
        .case-small p{font-size:13px;color:var(--muted);margin:0}
        .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;align-items:stretch}
        .price-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:30px;display:flex;flex-direction:column}
        .price-card.featured{background:var(--ink);color:#fff;transform:translateY(-15px);box-shadow:var(--shadow);border-color:var(--ink)}
        .price-card.featured p,.price-card.featured li{color:#d1c7bd}
        .price-card p{color:var(--muted);font-size:14px;min-height:48px}
        .price{font-size:40px;font-weight:900;margin:15px 0 22px}
        .price small{font-size:13px;font-weight:500;color:var(--muted)}
        .price-card ul{list-style:none;margin:0 0 28px;padding:0;color:var(--muted);font-size:14px;flex:1}
        .price-card li{padding:9px 0;border-bottom:1px solid var(--line)}
        .featured li{border-color:#514940}
        .review-wall{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:15px;align-items:stretch}
        .review{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:28px}
        .review.big{background:#e8c9ae;font-size:22px;display:flex;flex-direction:column;justify-content:space-between}
        .review.dark{background:var(--ink);color:#fff}
        .review.dark p{color:#d7cdc3}
        .review p{color:var(--muted)}
        .review cite{font-style:normal;font-size:13px;font-weight:800}
        .feedback{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
        .feedback-intro{border-left:3px solid var(--orange);padding-left:25px}
        .compare-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
        .compare{border:1px solid var(--line);background:var(--white);border-radius:12px;padding:20px}
        .compare strong{display:block;font-size:13px;color:var(--orange-dark);margin-bottom:8px}
        .compare p{margin:0;color:var(--muted);font-size:14px}
        .faq-list{max-width:900px}
        .faq-item{border-top:1px solid var(--line)}
        .faq-q{width:100%;padding:22px 0;background:none;border:0;text-align:left;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-q span{font-size:22px;color:var(--orange);transition:.25s}
        .faq-a{display:none;color:var(--muted);font-size:14px;padding:0 40px 22px 0}
        .faq-item.open .faq-a{display:block}
        .faq-item.open .faq-q span{transform:rotate(45deg)}
        .news-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:45px}
        .news-feature{padding:30px;border-radius:16px;background:linear-gradient(135deg,rgba(33,28,23,.9),rgba(33,28,23,.45)),url('/assets/images/a6555b22153bb55d.jpg') center/cover;color:#fff;min-height:290px;display:flex;flex-direction:column;justify-content:end}
        .news-feature p{color:#ded5cb;font-size:14px}
        .news-list{border-top:1px solid var(--line)}
        .news-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
        .news-item p{font-weight:800;margin:0}
        .news-item span{font-size:12px;color:var(--muted);white-space:nowrap}
        .cta-section{padding:95px 0;background:var(--orange);color:#fff}
        .cta-wrap{display:flex;align-items:end;justify-content:space-between;gap:40px}
        .cta-section .eyebrow{color:#ffe0c6}
        .cta-section .eyebrow:before{background:#ffe0c6}
        .cta-section h2{max-width:700px}
        .cta-section p{max-width:600px;color:#ffe8d6}
        .cta-form{display:flex;gap:9px;flex-wrap:wrap}
        .cta-form input{min-height:48px;border:0;border-radius:9px;padding:0 15px;min-width:210px}
        .cta-form .button{background:var(--ink);border-color:var(--ink)}
        footer{background:var(--ink);color:#fff;padding:58px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:50px}
        footer p,footer a{color:#aaa098;font-size:14px}
        footer a{display:block;margin:8px 0}
        footer a:hover{color:#fff}
        .footer-title{color:#fff;font-weight:800;margin-bottom:15px}
        .copyright{border-top:1px solid #433d37;padding-top:20px;color:#8d847c;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1024px){
            .main-nav{gap:14px}.hero-stage{grid-template-columns:1fr}.feature-layout,.feedback{grid-template-columns:1fr}.flow{grid-template-columns:repeat(3,1fr);row-gap:35px}.flow-step:nth-child(3){border-right:0}.price-grid{grid-template-columns:repeat(3, minmax(0,1fr))}.price-card{padding:22px}.review-wall{grid-template-columns:1fr 1fr}.review.big{grid-column:span 2}.news-layout{gap:25px}
        }
        @media(max-width:768px){
            .container{width:min(100% - 32px,var(--max))}.section{padding:76px 0}.section-head{display:block;margin-bottom:32px}.section-head p{margin-top:15px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:76px;left:0;right:0;background:var(--paper);padding:20px 24px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:13px 0}.nav-action{text-align:center;margin-top:8px}.hero{padding:65px 0 70px}.hero:before{background:linear-gradient(90deg,rgba(248,246,241,.96),rgba(248,246,241,.78)),url('/assets/images/43cef69c061118ec.jpg') center/cover}.numbered-grid{grid-template-columns:1fr}.value-item,.value-item:not(:first-child){padding:25px 0;border-right:0;border-bottom:1px solid var(--line)}.feature-grid,.scene-layout,.case-layout,.demo,.news-layout{grid-template-columns:1fr}.feature-card:nth-child(2){margin-top:0}.flow{grid-template-columns:1fr 1fr}.flow-step:nth-child(2){border-right:0}.flow-step:nth-child(3){border-right:1px solid var(--line)}.price-grid{display:flex;overflow-x:auto;padding:10px 2px 20px;scroll-snap-type:x mandatory}.price-card{min-width:285px;scroll-snap-align:start}.price-card.featured{transform:none}.review-wall{grid-template-columns:1fr}.review.big{grid-column:auto}.cta-wrap{display:block}.cta-form{margin-top:28px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            h1{font-size:43px}.hero .lead{font-size:16px}.hero-meta{gap:18px}.hero-stage{padding:14px}.script-window{padding:18px}.script-window h3{font-size:24px}.flow{grid-template-columns:1fr}.flow-step,.flow-step:nth-child(3){border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px}.compare-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.cta-form input,.cta-form .button{width:100%}
        }