/* roulang page: index */
:root{
            --ink:#202525;
            --muted:#6e7776;
            --soft:#f5f3ed;
            --paper:#fffdf8;
            --orange:#f26b4f;
            --orange-deep:#d9533b;
            --mint:#b9e7d7;
            --mint-deep:#267d6f;
            --line:#e6e4dc;
            --dark:#202d2c;
            --radius:20px;
            --shadow:0 18px 45px rgba(35,45,42,.09);
            --container:1220px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{height:78px;background:rgba(255,253,248,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
        .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);position:relative;display:inline-block}
        .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;background:var(--paper)}
        .brand-mark:before{width:9px;height:9px;left:8px;top:8px}
        .brand-mark:after{width:9px;height:9px;right:7px;bottom:7px}
        .nav-links{display:flex;align-items:center;gap:8px}
        .nav-links a{padding:10px 15px;border-radius:9px;color:#596361;font-size:14px;transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#fff0e9;color:var(--orange-deep)}
        .nav-download{padding:11px 18px!important;background:var(--dark)!important;color:#fff!important;border-radius:10px!important}
        .nav-download:hover{background:var(--orange)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
        .hero{position:relative;overflow:hidden;padding:92px 0 105px;background:#f8f5ee}
        .hero:before{content:"";position:absolute;width:440px;height:440px;border-radius:50%;background:#ffe1d4;right:-130px;top:-170px}
        .hero:after{content:"";position:absolute;width:180px;height:180px;border:1px solid #f2b9a8;border-radius:50%;right:160px;bottom:-90px}
        .hero-grid{display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:75px;position:relative;z-index:1}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);font-size:13px;font-weight:700;letter-spacing:.08em}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}
        h1{font-size:clamp(42px,5.2vw,70px);line-height:1.13;letter-spacing:-.07em;margin:20px 0 24px;max-width:650px}
        h1 em{font-style:normal;color:var(--orange)}
        .hero-copy{max-width:580px;color:var(--muted);font-size:17px}
        .hero-actions{display:flex;gap:13px;margin-top:34px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s}
        .btn-primary{background:var(--orange);color:#fff}
        .btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px);box-shadow:0 10px 20px #efb3a3}
        .btn-dark{background:var(--dark);color:#fff}
        .btn-dark:hover{background:var(--orange);transform:translateY(-2px)}
        .btn-light{background:#fff;border:1px solid var(--line)}
        .btn-light:hover{border-color:var(--orange);color:var(--orange)}
        .hero-art{min-height:405px;position:relative}
        .orbit{position:absolute;width:385px;height:385px;border:1px solid #efb8a6;border-radius:50%;right:20px;top:8px}
        .orbit:before,.orbit:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
        .orbit:before{width:13px;height:13px;top:45px;left:44px}
        .orbit:after{width:9px;height:9px;bottom:37px;right:54px;background:var(--mint-deep)}
        .device{position:absolute;right:80px;top:28px;width:212px;height:375px;background:var(--dark);border:8px solid #303c3a;border-radius:31px;box-shadow:var(--shadow);padding:16px 13px;color:#fff;transform:rotate(5deg)}
        .device-top{height:8px;width:72px;background:#56615e;border-radius:10px;margin:0 auto 22px}
        .device-label{font-size:12px;color:var(--mint);margin-bottom:9px}
        .device h3{font-size:23px;line-height:1.3;margin-bottom:20px}
        .screen-card{height:90px;border-radius:15px;background:#f47b5c;padding:13px;margin-bottom:11px;position:relative;overflow:hidden}
        .screen-card:after{content:"";position:absolute;width:95px;height:95px;border:15px solid rgba(255,255,255,.2);border-radius:50%;right:-30px;top:-25px}
        .screen-card small{font-size:11px;opacity:.8}.screen-card strong{display:block;font-size:16px;margin-top:5px}
        .screen-row{display:flex;gap:9px}.screen-mini{flex:1;height:57px;border-radius:12px;background:#40504c;padding:11px 9px;font-size:11px;color:#dcebe4}
        .float-note{position:absolute;left:8px;bottom:48px;background:#fff;padding:15px 18px;border-radius:15px;box-shadow:var(--shadow);font-size:13px;color:var(--ink)}
        .float-note b{display:block;font-size:20px;color:var(--orange);line-height:1.2}
        .section{padding:92px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-title{font-size:36px;line-height:1.2;letter-spacing:-.05em;margin-top:12px}
        .section-desc{color:var(--muted);max-width:450px;font-size:15px}
        .scene-section{background:var(--paper)}
        .scene-grid{display:grid;grid-template-columns:1.25fr .9fr .9fr;grid-template-rows:180px 180px;gap:15px}
        .scene-card{border:1px solid var(--line);border-radius:18px;padding:25px;position:relative;overflow:hidden;background:#fff}
        .scene-card:first-child{grid-row:span 2;background:var(--dark);color:#fff;border-color:var(--dark)}
        .scene-card:nth-child(3){background:#e4f5ee}
        .scene-card:nth-child(4){background:#fff0e8}
        .scene-card:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:var(--shadow)}
        .scene-card{transition:.25s}
        .scene-icon{font-size:24px;margin-bottom:14px}
        .scene-card h3{font-size:20px;margin-bottom:6px}
        .scene-card p{font-size:13px;color:var(--muted);line-height:1.6}
        .scene-card:first-child p{color:#c8d4d0;max-width:190px}
        .scene-arrow{position:absolute;right:21px;bottom:20px;color:var(--orange);font-size:22px}
        .path-section{background:#fbfaf6}
        .path-line{display:grid;grid-template-columns:repeat(5,1fr);position:relative;gap:24px}
        .path-line:before{content:"";position:absolute;top:19px;left:5%;right:5%;height:1px;background:#e8b8a9}
        .path-step{position:relative;z-index:1}
        .path-dot{width:39px;height:39px;border-radius:50%;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:20px;border:6px solid #fff4ef}
        .path-step h3{font-size:17px;margin-bottom:4px}.path-step p{font-size:13px;color:var(--muted)}
        .app-section{background:var(--mint);overflow:hidden}
        .app-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
        .app-visual{height:370px;position:relative}
        .app-orb{position:absolute;width:285px;height:285px;border-radius:50%;background:#8bd4bd;left:90px;top:35px}
        .app-phone{position:absolute;width:190px;height:335px;background:#fff;border:7px solid #273c38;border-radius:27px;left:165px;top:12px;box-shadow:0 18px 30px rgba(38,86,73,.18);padding:15px}
        .app-phone .app-bar{height:7px;width:60px;background:#b7c5c0;border-radius:5px;margin:0 auto 24px}
        .app-phone .app-banner{height:108px;border-radius:15px;background:var(--orange);padding:13px;color:#fff}
        .app-phone .app-banner b{display:block;font-size:18px;line-height:1.3;margin-top:8px}
        .app-phone .app-list{height:51px;background:#f4f7f5;border-radius:11px;margin-top:10px;padding:10px;font-size:12px;color:#3e5752}
        .app-content h2{font-size:38px;line-height:1.2;letter-spacing:-.05em;margin:13px 0 15px}
        .app-content>p{color:#45645d;max-width:520px}
        .tags{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}.tag{padding:6px 11px;border-radius:20px;background:rgba(255,255,255,.7);color:var(--mint-deep);font-size:12px}
        .app-info{display:flex;align-items:center;gap:18px;margin-top:26px}
        .qr{width:76px;height:76px;background:repeating-linear-gradient(45deg,#273c38 0 3px,#fff 3px 6px);border:7px solid #fff;border-radius:8px}
        .app-info small{display:block;color:#527268;margin-bottom:8px}
        .news-section{background:#fff}
        .news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
        .news-feature{padding:30px;border-radius:18px;background:#fff0e9;border:1px solid #f7d6ca;min-height:285px;display:flex;flex-direction:column;justify-content:space-between}
        .news-feature h3{font-size:25px;line-height:1.35;margin:15px 0 10px}
        .news-meta,.item-meta{font-size:12px;color:#8a9290;display:flex;gap:12px;align-items:center}
        .news-side{display:flex;flex-direction:column;gap:12px}
        .news-item{padding:20px;border:1px solid var(--line);border-radius:14px;transition:.25s;background:#fff}
        .news-item:hover{border-color:var(--orange);transform:translateX(3px)}
        .news-item h3{font-size:17px;line-height:1.45;margin:7px 0}
        .news-item p,.news-feature p{color:var(--muted);font-size:13px}
        .news-label{color:var(--orange-deep);font-size:12px;font-weight:700}
        .empty-state{padding:35px;border:1px dashed #d9b9ad;border-radius:15px;color:var(--muted);background:#fffaf7}
        .mosaic-section{background:#f5f3ed}
        .mosaic{display:grid;grid-template-columns:1.1fr .9fr .9fr;grid-template-rows:145px 145px;gap:14px}
        .mosaic-card{border-radius:18px;padding:23px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}
        .mosaic-card:first-child{grid-row:span 2;background:var(--dark);color:#fff}
        .mosaic-card:nth-child(2){background:#fff1db}.mosaic-card:nth-child(3){background:#e8f7f0}
        .mosaic-card h3{font-size:19px;margin-bottom:7px}.mosaic-card p{font-size:13px;color:var(--muted)}
        .mosaic-card:first-child p{color:#c7d5d0}.mosaic-card a{position:absolute;bottom:18px;color:var(--orange-deep);font-size:13px;font-weight:700}
        .interactive-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
        .interactive-panel{background:var(--dark);border-radius:22px;padding:35px;color:#fff;min-height:305px;position:relative;overflow:hidden}
        .interactive-panel:after{content:"";position:absolute;width:220px;height:220px;border:1px solid #52736c;border-radius:50%;right:-55px;bottom:-75px}
        .bubble{display:inline-block;background:#38524d;border-radius:12px;padding:10px 14px;margin:7px;font-size:13px;color:#d7eee5}
        .bubble.hot{background:var(--orange);color:#fff}.interactive-copy h2{font-size:34px;line-height:1.25;margin:13px 0}.interactive-copy p{color:var(--muted);max-width:480px}
        .feature-list{list-style:none;margin-top:24px}.feature-list li{padding:13px 0 13px 30px;border-bottom:1px solid var(--line);position:relative;font-size:15px}.feature-list li:before{content:"✓";position:absolute;left:0;color:var(--orange);font-weight:800}
        .play-section{background:#fff7f2}.play-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.play-card{min-height:145px;border-radius:18px;padding:24px;background:#fff;border:1px solid #f0ddd5}.play-card:nth-child(2){margin-top:24px}.play-card:nth-child(3){background:var(--dark);color:#fff;margin-top:-8px}.play-card:nth-child(4){background:var(--mint);margin-top:18px}.play-card h3{font-size:18px;margin-bottom:8px}.play-card p{font-size:13px;color:var(--muted)}.play-card:nth-child(3) p{color:#c5d8d1}
        .trend-section{background:#fff}.trend-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:center}.trend-copy h2{font-size:35px;line-height:1.25;margin:13px 0}.trend-copy p{color:var(--muted)}.trend-board{border-left:2px solid var(--orange);padding-left:28px}.trend-row{display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.trend-row b{width:82px;color:var(--orange-deep);font-size:13px}.trend-row span{font-size:17px}.trend-row small{margin-left:auto;color:var(--muted)}
        .feedback-section{background:#f5f3ed}.feedback-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px;align-items:start}.feedback-copy h2{font-size:34px;line-height:1.25;margin:13px 0}.feedback-copy p{color:var(--muted)}.feedback-form{background:#fff;padding:30px;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{margin-bottom:15px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;border:1px solid #dcded8;border-radius:9px;padding:11px 13px;background:#fff;color:var(--ink);outline:none}.field textarea{min-height:100px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px #ffe2d8}.form-note{font-size:12px;color:#909794;margin-top:12px}.form-status{display:none;margin-top:12px;color:var(--mint-deep);font-size:13px}
        .observe-section{background:#fff}.observe-card{display:grid;grid-template-columns:190px 1fr auto;gap:28px;align-items:center;border:1px solid var(--line);border-left:5px solid var(--orange);border-radius:15px;padding:26px;background:#fffdf9}.observe-visual{height:115px;border-radius:12px;background:linear-gradient(135deg,#f47a5b 0 35%,#f8c3a7 35% 62%,#273c38 62%);position:relative}.observe-visual:after{content:"体验";position:absolute;right:13px;bottom:10px;color:#fff;font-size:24px;font-weight:800}.observe-card h3{font-size:23px;margin:8px 0}.observe-card p{color:var(--muted);font-size:14px}.observe-card .btn{white-space:nowrap}
        .guide-section{background:#f8f5ee}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.guide-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:20px 22px;display:flex;justify-content:space-between;gap:20px}.guide-item h3{font-size:16px}.guide-item p{font-size:13px;color:var(--muted);margin-top:4px}.guide-item span{color:var(--orange);font-size:20px}
        .faq-section{background:#fff}.faq-list{max-width:850px;margin:0 auto;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 5px;background:none;text-align:left;font-weight:700;display:flex;justify-content:space-between;color:var(--ink)}.faq-question span{font-size:23px;color:var(--orange);transition:.25s}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 5px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
        .closing{padding:72px 0;background:var(--orange);color:#fff}.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.closing h2{font-size:38px;line-height:1.25;letter-spacing:-.04em}.closing p{margin-top:8px;color:#ffe8df}.closing .btn{background:#fff;color:var(--orange-deep)}.closing .btn:hover{background:var(--dark);color:#fff}
        .site-footer{background:var(--dark);color:#d7e0dc;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:45px}.footer-brand{color:#fff;font-size:20px;margin-bottom:13px}.footer-col h3{font-size:14px;color:#fff;margin-bottom:15px}.footer-col a{display:block;color:#aebcb7;font-size:13px;margin:8px 0;transition:.2s}.footer-col a:hover{color:var(--mint)}.footer-desc{color:#aebcb7;font-size:13px;max-width:300px}.footer-bottom{border-top:1px solid #3a4844;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#94a29e;font-size:12px}
        :focus-visible{outline:3px solid #f4a08b;outline-offset:3px}
        @media(max-width:1024px){.hero-grid{gap:35px}.scene-grid{grid-template-columns:1fr 1fr}.scene-card:first-child{grid-row:span 1;grid-column:span 2}.app-grid{gap:30px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
        @media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header{height:68px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:12px 16px 18px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:13px 15px}.menu-toggle{display:block}.hero{padding:65px 0 70px}.hero-grid,.app-grid,.interactive-grid,.trend-wrap,.feedback-grid{grid-template-columns:1fr}.hero-art{min-height:360px;margin-top:15px}.device{right:calc(50% - 105px)}.orbit{right:calc(50% - 192px)}.float-note{left:calc(50% - 175px)}.section{padding:68px 0}.section-head{display:block}.section-desc{margin-top:14px}.path-line{grid-template-columns:1fr 1fr;gap:25px}.path-line:before{display:none}.mosaic{grid-template-columns:1fr 1fr;grid-template-rows:auto}.mosaic-card:first-child{grid-row:auto;grid-column:span 2}.play-grid{grid-template-columns:1fr 1fr}.play-card:nth-child(n){margin-top:0}.feedback-grid{gap:28px}.observe-card{grid-template-columns:110px 1fr}.observe-card .btn{grid-column:span 2;justify-self:start}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand-col{grid-column:span 2}.closing-inner{display:block}.closing .btn{margin-top:23px}}
        @media(max-width:520px){h1{font-size:42px}.hero-copy{font-size:15px}.hero-art{transform:scale(.9);transform-origin:center top;margin-bottom:-35px}.scene-grid{display:flex;flex-direction:column}.scene-card,.scene-card:first-child{min-height:155px}.scene-card:first-child{min-height:190px}.path-line{grid-template-columns:1fr}.app-visual{transform:scale(.82);transform-origin:center top;margin-bottom:-55px}.app-content h2,.interactive-copy h2,.trend-copy h2{font-size:30px}.news-layout,.mosaic,.play-grid,.guide-grid{grid-template-columns:1fr}.mosaic-card:first-child{grid-column:auto}.form-row{grid-template-columns:1fr}.observe-card{grid-template-columns:1fr}.observe-visual{height:130px}.observe-card .btn{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand-col{grid-column:span 2}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
            --ink:#202525;
            --muted:#6e7776;
            --soft:#f5f3ed;
            --paper:#fffdf8;
            --orange:#f26b4f;
            --orange-deep:#d9533b;
            --mint:#b9e7d7;
            --mint-deep:#267d6f;
            --line:#e6e4dc;
            --dark:#202d2c;
            --radius:20px;
            --shadow:0 18px 45px rgba(35,45,42,.09);
            --container:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--paper);
            color:var(--ink);
            font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            font-size:16px;
            line-height:1.75;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            height:78px;
            position:sticky;
            top:0;
            z-index:30;
            background:rgba(255,253,248,.97);
            border-bottom:1px solid var(--line);
        }
        .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
        .brand-mark{
            width:34px;height:34px;display:inline-block;position:relative;
            border-radius:11px;background:var(--orange);
        }
        .brand-mark:before,.brand-mark:after{
            content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:var(--paper)
        }
        .brand-mark:before{left:8px;top:8px}
        .brand-mark:after{right:7px;bottom:7px}
        .nav-links{display:flex;align-items:center;gap:8px}
        .nav-links a{
            padding:10px 15px;border-radius:9px;color:#596361;font-size:14px;
            transition:.25s ease;
        }
        .nav-links a:hover,.nav-links a.active{background:#fff0e9;color:var(--orange-deep)}
        .nav-links .nav-download{
            padding:11px 18px;background:var(--dark);color:#fff;border-radius:10px;
        }
        .nav-links .nav-download:hover{background:var(--orange);color:#fff;transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;color:var(--ink);font-size:25px}
        .article-hero{
            padding:76px 0 68px;
            background:#f8f5ee;
            border-bottom:1px solid var(--line);
            position:relative;
            overflow:hidden;
        }
        .article-hero:after{
            content:"";width:280px;height:280px;border:1px solid #f1b6a5;
            border-radius:50%;position:absolute;right:-100px;top:-85px;
        }
        .crumbs{display:flex;gap:9px;align-items:center;color:#8a9290;font-size:13px;margin-bottom:25px;position:relative;z-index:1}
        .crumbs a{color:var(--orange-deep)}
        .crumbs .slash{color:#c0c2bb}
        .article-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);
            font-size:13px;font-weight:700;letter-spacing:.08em;position:relative;z-index:1
        }
        .article-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}
        .article-hero h1{
            max-width:900px;margin:15px 0 22px;font-size:clamp(32px,5vw,56px);
            line-height:1.22;letter-spacing:-.055em;position:relative;z-index:1
        }
        .article-intro{max-width:790px;color:var(--muted);font-size:17px;margin:0 0 25px}
        .article-meta{display:flex;flex-wrap:wrap;gap:12px;color:#8a9290;font-size:13px;position:relative;z-index:1}
        .meta-pill{padding:5px 11px;border-radius:20px;background:#fff;border:1px solid var(--line)}
        .reading-progress{height:4px;background:var(--orange);width:0;position:fixed;top:78px;left:0;z-index:40}
        .article-section{padding:72px 0}
        .article-layout{
            display:grid;grid-template-columns:minmax(0,820px) 260px;gap:72px;
            align-items:start;justify-content:center;
        }
        .article-body{
            min-width:0;font-size:17px;color:#394342;
        }
        .article-body h2{
            font-size:30px;line-height:1.35;color:var(--ink);margin:42px 0 18px;
            letter-spacing:-.035em;
        }
        .article-body h3{font-size:22px;line-height:1.45;color:var(--ink);margin:31px 0 12px}
        .article-body p{margin:0 0 22px}
        .article-body ul,.article-body ol{padding-left:1.5em;margin:10px 0 25px}
        .article-body li{padding-left:7px;margin:7px 0}
        .article-body blockquote{
            margin:30px 0;padding:20px 24px;border-left:4px solid var(--orange);
            background:#fff0e9;color:#5c5551;border-radius:0 13px 13px 0;
        }
        .article-body img{border-radius:16px;margin:28px auto}
        .article-body table{width:100%;border-collapse:collapse;margin:28px 0;background:#fff;font-size:15px}
        .article-body th,.article-body td{padding:12px 15px;border:1px solid var(--line);text-align:left}
        .article-body th{background:var(--soft);color:var(--ink)}
        .article-body hr{border:0;border-top:1px solid var(--line);margin:38px 0}
        .article-aside{position:sticky;top:105px}
        .aside-card{
            padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff;
            margin-bottom:16px;
        }
        .aside-card h3{font-size:17px;margin:0 0 13px}
        .aside-card p{font-size:13px;color:var(--muted);margin:0 0 16px}
        .reading-tools{display:flex;gap:8px}
        .tool-btn{
            width:38px;height:36px;border:1px solid var(--line);border-radius:8px;
            background:var(--paper);color:var(--muted);transition:.2s
        }
        .tool-btn:hover,.tool-btn:focus{border-color:var(--orange);color:var(--orange-deep);outline:none}
        .article-note{
            padding:18px;background:#e8f7f0;border-radius:13px;color:var(--mint-deep);
            font-size:13px
        }
        .app-panel{
            padding:35px 40px;border-radius:20px;background:var(--mint);
            display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;
        }
        .section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);font-size:13px;font-weight:700;letter-spacing:.08em}
        .section-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}
        .app-panel h2{font-size:28px;line-height:1.35;margin:10px 0 8px;letter-spacing:-.04em}
        .app-panel p{margin:0;color:#4d6762;font-size:14px}
        .app-actions{display:flex;align-items:center;gap:13px;flex-wrap:wrap}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;min-height:47px;
            padding:0 21px;border-radius:10px;font-size:14px;font-weight:700;transition:.25s
        }
        .btn-primary{background:var(--orange);color:#fff}
        .btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 20px #efb3a3}
        .btn-dark{background:var(--dark);color:#fff}
        .btn-dark:hover{background:var(--orange);color:#fff;transform:translateY(-2px)}
        .related-section{padding:0 0 82px}
        .related-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:22px}
        .related-head h2{font-size:27px;margin:9px 0 0;letter-spacing:-.04em}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
        .related-card{
            padding:22px;border:1px solid var(--line);border-radius:15px;background:#fff;
            transition:.25s
        }
        .related-card:hover{border-color:var(--orange);transform:translateY(-3px);box-shadow:var(--shadow)}
        .related-card h3{font-size:18px;line-height:1.45;margin:12px 0 7px}
        .related-card p{font-size:13px;color:var(--muted);margin:0}
        .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#fff0e9;color:var(--orange-deep);font-size:12px}
        .return-bar{
            display:flex;justify-content:space-between;align-items:center;gap:18px;
            padding-top:25px;border-top:1px solid var(--line);color:var(--muted);font-size:14px
        }
        .return-links{display:flex;gap:18px;flex-wrap:wrap}
        .return-links a{color:var(--orange-deep);font-weight:700}
        .empty-state{
            text-align:center;padding:70px 25px;border:1px dashed #d9d7ce;border-radius:18px;
            background:#fff;color:var(--muted)
        }
        .empty-icon{font-size:38px;color:var(--orange);margin-bottom:10px}
        .site-footer{padding:64px 0 24px;background:var(--dark);color:#fff}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
        .footer-brand{color:#fff;margin-bottom:15px}
        .footer-desc{color:#aebbb7;max-width:270px;font-size:14px;margin:0}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{font-size:14px;margin:2px 0 9px;color:#fff}
        .footer-col a{font-size:13px;color:#aebbb7;transition:.2s}
        .footer-col a:hover{color:#ff9b82;transform:translateX(2px)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;
            border-top:1px solid rgba(255,255,255,.13);margin-top:45px;padding-top:18px;
            color:#82918d;font-size:12px
        }
        :focus-visible{outline:3px solid rgba(242,107,79,.35);outline-offset:3px}
        @media(max-width:1024px){
            .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:38px}
            .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
            .footer-brand-col{grid-column:1/-1}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .site-header{height:70px}
            .reading-progress{top:70px}
            .menu-toggle{display:block}
            .nav-links{
                display:none;position:absolute;top:70px;left:0;right:0;padding:12px 16px 17px;
                background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);
                flex-direction:column;align-items:stretch
            }
            .nav-links.open{display:flex}
            .nav-links a{text-align:center}
            .article-hero{padding:52px 0 45px}
            .article-hero h1{font-size:35px}
            .article-intro{font-size:16px}
            .article-layout{display:block}
            .article-aside{position:static;margin-top:32px}
            .app-panel{grid-template-columns:1fr;padding:28px 24px}
            .related-grid{grid-template-columns:1fr}
            .related-section{padding-bottom:60px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-brand-col{grid-column:1/-1}
        }
        @media(max-width:520px){
            .article-section{padding:48px 0}
            .article-body{font-size:16px}
            .article-body h2{font-size:25px}
            .article-body h3{font-size:20px}
            .return-bar{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand-col{grid-column:auto}
            .footer-bottom{flex-direction:column}
            .brand{font-size:18px}
        }

/* roulang page: category1 */
:root{
        --ink:#202525;--muted:#6e7776;--soft:#f5f3ed;--paper:#fffdf8;
        --orange:#f26b4f;--orange-deep:#d9533b;--mint:#b9e7d7;--mint-deep:#267d6f;
        --line:#e6e4dc;--dark:#202d2c;--radius:20px;
        --shadow:0 18px 45px rgba(35,45,42,.09);--container:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(242,107,79,.35);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);position:relative;display:inline-block}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;background:var(--paper)}
    .brand-mark:before{width:9px;height:9px;left:8px;top:8px}
    .brand-mark:after{width:9px;height:9px;right:7px;bottom:7px}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:10px 15px;border-radius:9px;color:#596361;font-size:14px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fff0e9;color:var(--orange-deep)}
    .nav-download{padding:11px 18px!important;background:var(--dark)!important;color:#fff!important;border-radius:10px!important}
    .nav-download:hover{background:var(--orange)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
    .category-hero{padding:72px 0 66px;background:#f8f5ee;position:relative;overflow:hidden}
    .category-hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid #f2b9a8;border-radius:50%;right:8%;top:-155px}
    .hero-inner{position:relative;z-index:1;max-width:790px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}
    .crumbs{color:var(--muted);font-size:13px;margin-bottom:27px}
    .crumbs a:hover{color:var(--orange-deep)}
    h1{font-size:clamp(38px,5vw, sixty);font-size:clamp(38px,5vw,60px);line-height:1.12;letter-spacing:-.06em;margin:0 0 20px}
    .hero-summary{max-width:650px;color:var(--muted);font-size:17px;margin:0}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
    .section-title{font-size:34px;line-height:1.2;letter-spacing:-.05em;margin:11px 0 0}
    .section-desc{color:var(--muted);max-width:450px;font-size:15px;margin:0}
    .topic-bar{display:flex;gap:12px;flex-wrap:wrap;padding:22px 0 0}
    .topic-chip{padding:11px 17px;border:1px solid var(--line);border-radius:30px;background:#fff;color:#58625f;font-size:14px;transition:.25s}
    .topic-chip:hover,.topic-chip.current{border-color:var(--orange);color:var(--orange-deep);background:#fff0e9}
    .focus-section{background:#fff}
    .focus-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:18px}
    .focus-panel{border-radius:var(--radius);padding:34px;background:var(--dark);color:#fff;min-height:330px;position:relative;overflow:hidden}
    .focus-panel:after{content:"";position:absolute;width:220px;height:220px;border:18px solid rgba(185,231,215,.16);border-radius:50%;right:-70px;bottom:-90px}
    .focus-panel h3{font-size:28px;line-height:1.3;margin:18px 0 12px}
    .focus-panel p{color:#cbd8d3;max-width:290px;font-size:14px}
    .focus-points{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .point-card{padding:27px;border:1px solid var(--line);border-radius:17px;background:#fffdf9;transition:.25s}
    .point-card:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:var(--shadow)}
    .point-icon{width:39px;height:39px;border-radius:12px;background:#fff0e9;color:var(--orange-deep);display:grid;place-items:center;font-weight:800;margin-bottom:15px}
    .point-card h3{font-size:19px;margin:0 0 7px}
    .point-card p{color:var(--muted);font-size:14px;margin:0}
    .content-section{background:var(--soft)}
    .content-layout{display:grid;grid-template-columns:1.5fr .8fr;gap:28px;align-items:start}
    .post-list{display:grid;gap:13px}
    .post-card{display:grid;grid-template-columns:88px 1fr auto;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:.25s}
    .post-card:hover{border-color:var(--orange);transform:translateX(3px);box-shadow:0 10px 25px rgba(35,45,42,.06)}
    .post-thumb{height:72px;border-radius:11px;background:linear-gradient(135deg,#f7b49f,#f26b4f);position:relative;overflow:hidden}
    .post-thumb:after{content:"";width:44px;height:44px;border:8px solid rgba(255,255,255,.35);border-radius:50%;position:absolute;right:-10px;bottom:-10px}
    .post-card h3{font-size:18px;line-height:1.4;margin:6px 0}
    .post-card p{margin:0;color:var(--muted);font-size:13px}
    .item-meta{font-size:12px;color:#8a9290;display:flex;gap:10px;align-items:center;white-space:nowrap}
    .post-arrow{color:var(--orange);font-size:22px}
    .empty-state{padding:42px 25px;border:1px dashed #d9d5ca;border-radius:16px;background:#fff;text-align:center;color:var(--muted)}
    .empty-state strong{display:block;color:var(--ink);margin-bottom:7px}
    .side-note{border-radius:18px;padding:29px;background:#e4f5ee;border:1px solid #c9e9dc;position:sticky;top:105px}
    .side-note h3{font-size:22px;margin:0 0 12px}
    .side-note p{font-size:14px;color:#52716a;margin:0 0 20px}
    .mini-list{display:grid;gap:10px}
    .mini-list span{display:block;padding:11px 13px;border-radius:10px;background:rgba(255,255,255,.65);font-size:13px;color:var(--mint-deep)}
    .scene-story{background:#fff}
    .story-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
    .story-copy p{color:var(--muted);font-size:16px;max-width:520px}
    .story-steps{border-left:2px solid #f4c3b5;padding-left:28px;display:grid;gap:26px}
    .story-step{position:relative}
    .story-step:before{content:"";position:absolute;left:-37px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--orange);border:4px solid #fff0e9}
    .story-step strong{font-size:18px;display:block}
    .story-step span{font-size:14px;color:var(--muted)}
    .display-section{background:#fff0e9}
    .display-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .display-card{min-height:260px;border-radius:20px;padding:30px;background:#fff;border:1px solid #f6d6cb;position:relative;overflow:hidden}
    .display-card.large{background:var(--orange);color:#fff;min-height:330px}
    .display-card.large p{color:#ffe8df}
    .display-card h3{font-size:25px;line-height:1.3;margin:15px 0 8px}
    .display-card p{color:var(--muted);font-size:14px;max-width:390px}
    .orbit{position:absolute;width:210px;height:210px;border:1px solid rgba(255,255,255,.45);border-radius:50%;right:-35px;bottom:-85px}
    .orbit:after{content:"";position:absolute;width:22px;height:22px;border-radius:50%;background:#fff;left:30px;top:20px}
    .faq-section{background:#fbfaf6}
    .faq-list{max-width:850px;margin:0 auto;display:grid;gap:10px}
    .faq-list details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:19px 22px}
    .faq-list details[open]{border-color:#f4b4a3}
    .faq-list summary{font-weight:700;cursor:pointer;list-style:none;padding-right:25px;position:relative}
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list summary:after{content:"＋";position:absolute;right:0;color:var(--orange);font-size:20px;top:-3px}
    .faq-list details[open] summary:after{content:"−"}
    .faq-list p{color:var(--muted);font-size:14px;margin:12px 0 0;padding-top:12px;border-top:1px solid var(--line)}
    .cta-section{padding:65px 0;background:var(--dark);color:#fff}
    .cta-wrap{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-wrap h2{font-size:32px;line-height:1.25;margin:0 0 8px}
    .cta-wrap p{color:#c8d4d0;margin:0;font-size:15px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s}
    .btn-primary{background:var(--orange);color:#fff}
    .btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px);box-shadow:0 10px 20px #efb3a3}
    .site-footer{padding:58px 0 22px;background:#202d2c;color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand{color:#fff;margin-bottom:15px}.footer-desc{color:#b8c5c0;font-size:13px;max-width:260px}
    .footer-col{display:flex;flex-direction:column;gap:9px}.footer-col h3{font-size:15px;margin:0 0 7px;color:#fff}
    .footer-col a{font-size:13px;color:#b8c5c0;transition:.2s}.footer-col a:hover{color:#f7a18b}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#9eada8;font-size:12px}
    @media(max-width:1024px){.content-layout{grid-template-columns:1fr}.side-note{position:static}.story-grid{gap:35px}}
    @media(max-width:768px){
        .container{width:min(var(--container),calc(100% - 32px))}.site-header{height:68px}
        .menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:12px 16px 18px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
        .nav-links.open{display:flex}.nav-links a{text-align:center}.category-hero{padding:52px 0}.section{padding:62px 0}
        .section-head,.cta-wrap{display:block}.section-desc{margin-top:15px}.focus-layout,.story-grid,.display-grid{grid-template-columns:1fr}.focus-points{grid-template-columns:1fr 1fr}
        .post-card{grid-template-columns:65px 1fr}.post-arrow{display:none}.post-thumb{height:60px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
        h1{font-size:40px}.focus-points{grid-template-columns:1fr}.post-card{gap:13px;padding:14px}.post-card h3{font-size:16px}.item-meta{flex-wrap:wrap}
        .footer-grid{grid-template-columns:1fr}.cta-wrap .btn{margin-top:22px;width:100%}
    }

/* roulang page: category2 */
:root{--ink:#202525;--muted:#6e7776;--soft:#f5f3ed;--paper:#fffdf8;--orange:#f26b4f;--orange-deep:#d9533b;--mint:#b9e7d7;--mint-deep:#267d6f;--line:#e6e4dc;--dark:#202d2c;--radius:20px;--shadow:0 18px 45px rgba(35,45,42,.09);--container:1220px}
        *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{height:78px;background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);position:relative;display:inline-block}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;background:var(--paper);width:9px;height:9px}.brand-mark:before{left:8px;top:8px}.brand-mark:after{right:7px;bottom:7px}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{padding:10px 15px;border-radius:9px;color:#596361;font-size:14px;transition:.25s}.nav-links a:hover,.nav-links a.active{background:#fff0e9;color:var(--orange-deep)}.nav-download{padding:11px 18px!important;background:var(--dark)!important;color:#fff!important;border-radius:10px!important}.nav-download:hover{background:var(--orange)!important;transform:translateY(-2px)}.menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
        .page-intro{background:#f8f5ee;padding:72px 0 68px;position:relative;overflow:hidden}.page-intro:after{content:"";position:absolute;width:310px;height:310px;border:1px solid #f2b9a8;border-radius:50%;right:7%;top:-150px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:25px}.breadcrumb a:hover{color:var(--orange-deep)}.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end;position:relative;z-index:1}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);font-size:13px;font-weight:700;letter-spacing:.08em}.eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.06em;margin:16px 0 18px}.intro-copy{max-width:650px;color:var(--muted);font-size:17px}.intro-note{background:var(--dark);color:#fff;padding:25px;border-radius:18px;box-shadow:var(--shadow)}.intro-note strong{display:block;color:var(--mint);font-size:25px;margin-bottom:9px}.intro-note p{color:#c8d4d0;font-size:14px;margin:0}
        .section{padding:86px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}.section-title{font-size:36px;line-height:1.2;letter-spacing:-.05em;margin:12px 0 0}.section-desc{max-width:470px;color:var(--muted);font-size:15px}.topic-bar{display:flex;gap:12px;flex-wrap:wrap}.topic{padding:12px 18px;border:1px solid var(--line);border-radius:30px;background:#fff;transition:.25s;color:#4d5957}.topic:hover,.topic.current{border-color:var(--orange);color:var(--orange-deep);background:#fff0e9}
        .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}.feature-card{min-height:330px;border-radius:20px;padding:32px;background:var(--dark);color:#fff;position:relative;overflow:hidden}.feature-card:after{content:"";position:absolute;width:210px;height:210px;border:24px solid rgba(185,231,215,.14);border-radius:50%;right:-70px;bottom:-75px}.feature-card h3{font-size:30px;line-height:1.3;max-width:380px;margin:18px 0 12px}.feature-card p{color:#cbd6d2;max-width:390px;font-size:14px}.feature-label{color:var(--mint);font-size:13px;font-weight:700}.feature-side{display:grid;gap:18px}.mini-card{padding:25px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:.25s}.mini-card:nth-child(2){background:#e4f5ee}.mini-card:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:var(--shadow)}.mini-card h3{font-size:20px;margin:8px 0}.mini-card p{color:var(--muted);font-size:14px;margin:0}
        .news-section{background:#fff}.news-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}.news-feature{padding:30px;border-radius:18px;background:#fff0e9;border:1px solid #f7d6ca;min-height:300px;display:flex;flex-direction:column;justify-content:space-between}.news-feature h3{font-size:25px;line-height:1.35;margin:15px 0 10px}.news-feature p,.news-item p{color:var(--muted);font-size:13px}.news-meta,.item-meta{font-size:12px;color:#8a9290;display:flex;gap:12px;align-items:center}.news-list{display:grid;gap:12px}.news-item{padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.25s}.news-item:hover{border-color:var(--orange);transform:translateX(3px)}.news-item h3{font-size:17px;line-height:1.45;margin:7px 0}.empty-state{padding:42px 20px;text-align:center;border:1px dashed #cfcfc5;border-radius:16px;color:var(--muted);background:var(--soft)}
        .path-section{background:#fbfaf6}.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}.path-step{padding:27px 24px 20px;border-right:1px solid var(--line);position:relative}.path-step:last-child{border-right:0}.path-no{color:var(--orange);font-size:13px;font-weight:800}.path-step h3{font-size:19px;margin:12px 0 6px}.path-step p{font-size:13px;color:var(--muted);margin:0}
        .visual-section{background:var(--mint)}.visual-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:28px;align-items:stretch}.visual-copy{padding:33px;background:#fff;border-radius:20px}.visual-copy h2{font-size:30px;line-height:1.3;margin:15px 0}.visual-copy p{color:var(--muted);font-size:14px}.screen-board{border-radius:20px;background:var(--dark);padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:15px;color:#fff}.screen{border-radius:15px;padding:20px;min-height:150px;background:#344442}.screen:first-child{grid-row:span 2;background:#f26b4f}.screen:nth-child(3){background:#dcefe7;color:var(--dark)}.screen small{font-size:12px;opacity:.75}.screen h3{font-size:21px;margin:22px 0 7px}.screen p{font-size:13px;opacity:.75;margin:0}
        .insight-section{background:var(--soft)}.insight-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.insight-card{padding:32px;border-radius:19px;background:#fff;border:1px solid var(--line)}.insight-card.accent{background:#fff1db;border-color:#f4d6b0}.insight-card h3{font-size:24px;line-height:1.35;margin:13px 0}.insight-card p{font-size:14px;color:var(--muted)}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.tag{padding:6px 11px;border-radius:20px;background:#e4f5ee;color:var(--mint-deep);font-size:12px}
        .faq-section{background:#fff}.faq-list{max-width:850px;margin:auto}.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;padding:20px 4px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--orange);font-size:23px;font-weight:400}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 38px 20px 4px;color:var(--muted);font-size:14px}
        .cta{padding:70px 0}.cta-box{background:var(--orange);color:#fff;border-radius:22px;padding:38px 45px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-box h2{font-size:32px;line-height:1.3;margin:0 0 8px}.cta-box p{margin:0;color:#ffe7df;font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s}.btn-dark{background:var(--dark);color:#fff}.btn-dark:hover{background:#fff;color:var(--dark);transform:translateY(-2px)}
        .site-footer{background:var(--dark);color:#fff;padding:62px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}.footer-brand{color:#fff}.footer-desc{color:#afbfba;max-width:280px;font-size:13px;margin-top:17px}.footer-col h3{font-size:15px;margin:4px 0 15px}.footer-col a{display:block;color:#afbfba;font-size:13px;margin:9px 0;transition:.2s}.footer-col a:hover{color:var(--mint);transform:translateX(2px)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:45px;padding-top:20px;color:#8fa19c;font-size:12px}
        a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--mint-deep);outline-offset:3px}
        @media(max-width:1024px){.intro-grid,.feature-layout,.news-layout,.visual-grid,.insight-grid{grid-template-columns:1fr}.path-grid{grid-template-columns:repeat(2,1fr)}.path-step:nth-child(2){border-right:0}.path-step:nth-child(-n+2){border-bottom:1px solid var(--line)}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.page-intro{padding:52px 0}.section{padding:62px 0}.section-head{display:block}.section-desc{margin-top:18px}.path-grid{grid-template-columns:1fr}.path-step{border-right:0!important;border-bottom:1px solid var(--line)}.path-step:last-child{border-bottom:0}.cta-box{display:block;padding:31px 25px}.cta-box .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand-col{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
        @media(max-width:520px){h1{font-size:39px}.intro-copy{font-size:15px}.section-title{font-size:29px}.screen-board{grid-template-columns:1fr}.screen:first-child{grid-row:auto}.footer-grid{grid-template-columns:1fr}.footer-brand-col{grid-column:auto}.brand{font-size:17px}.brand-mark{width:30px;height:30px}}

/* roulang page: category3 */
:root{
            --ink:#202525;
            --muted:#6e7776;
            --soft:#f5f3ed;
            --paper:#fffdf8;
            --orange:#f26b4f;
            --orange-deep:#d9533b;
            --mint:#b9e7d7;
            --mint-deep:#267d6f;
            --line:#e6e4dc;
            --dark:#202d2c;
            --radius:20px;
            --shadow:0 18px 45px rgba(35,45,42,.09);
            --container:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{height:78px;background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
        .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);position:relative;display:inline-block}
        .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;background:var(--paper)}
        .brand-mark:before{width:9px;height:9px;left:8px;top:8px}
        .brand-mark:after{width:9px;height:9px;right:7px;bottom:7px}
        .nav-links{display:flex;align-items:center;gap:8px}
        .nav-links a{padding:10px 15px;border-radius:9px;color:#596361;font-size:14px;transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#fff0e9;color:var(--orange-deep)}
        .nav-download{padding:11px 18px!important;background:var(--dark)!important;color:#fff!important;border-radius:10px!important}
        .nav-download:hover{background:var(--orange)!important;transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
        .page-hero{padding:78px 0 70px;background:#f8f5ee;border-bottom:1px solid #eee9dd}
        .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:35px}
        .breadcrumb a{color:var(--mint-deep)}
        .page-hero-grid{display:grid;grid-template-columns:1fr 390px;gap:90px;align-items:end}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange-deep);font-size:13px;font-weight:700;letter-spacing:.08em}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:4px;background:var(--orange)}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.13;letter-spacing:-.06em;margin:17px 0 20px}
        .lead{color:var(--muted);font-size:17px;max-width:720px;margin:0}
        .hero-note{padding:25px;background:#fff;border:1px solid var(--line);border-radius:18px}
        .hero-note strong{display:block;font-size:22px;margin-bottom:8px}
        .hero-note p{font-size:14px;color:var(--muted);margin:0}
        .section{padding:86px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
        .section-title{font-size:36px;line-height:1.2;letter-spacing:-.05em;margin:12px 0 0}
        .section-desc{color:var(--muted);max-width:470px;font-size:15px;margin:0}
        .guide-section{background:#fff}
        .guide-row{display:flex;flex-wrap:wrap;gap:12px}
        .guide-pill{padding:13px 18px;border:1px solid var(--line);border-radius:12px;background:var(--paper);font-size:14px;transition:.25s}
        .guide-pill:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}
        .guide-pill b{color:var(--orange);margin-right:8px}
        .feature-section{background:var(--soft)}
        .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
        .feature-main{min-height:365px;padding:38px;border-radius:22px;background:var(--dark);color:#fff;position:relative;overflow:hidden}
        .feature-main:after{content:"";position:absolute;width:260px;height:260px;border:34px solid rgba(185,231,215,.17);border-radius:50%;right:-70px;bottom:-90px}
        .feature-main h3{font-size:30px;line-height:1.3;max-width:380px;margin:18px 0 15px}
        .feature-main p{color:#cbd7d3;max-width:400px}
        .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .feature-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:17px;min-height:174px;transition:.25s}
        .feature-card:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:var(--shadow)}
        .feature-icon{width:40px;height:40px;border-radius:12px;background:#fff0e9;color:var(--orange-deep);display:grid;place-items:center;font-weight:800;margin-bottom:15px}
        .feature-card h3{font-size:18px;margin:0 0 6px}
        .feature-card p{font-size:13px;color:var(--muted);margin:0}
        .app-section{background:var(--mint);overflow:hidden}
        .app-layout{display:grid;grid-template-columns:360px 1fr;gap:90px;align-items:center}
        .phone{width:255px;height:470px;border:9px solid var(--dark);border-radius:35px;background:#f7faf7;padding:16px;margin:auto;box-shadow:20px 25px 0 rgba(38,125,111,.12);transform:rotate(-4deg)}
        .phone-top{height:10px;width:72px;background:var(--dark);border-radius:20px;margin:0 auto 24px}
        .phone-banner{height:112px;border-radius:17px;background:var(--orange);color:#fff;padding:16px;font-size:13px}
        .phone-banner strong{display:block;font-size:20px;line-height:1.25;margin-top:10px}
        .phone-line{height:47px;border-radius:12px;background:#fff;margin-top:11px;padding:12px;color:var(--mint-deep);font-size:12px;border:1px solid #e5eee8}
        .app-copy h2{font-size:38px;line-height:1.25;margin:12px 0 14px;letter-spacing:-.05em}
        .app-copy p{color:#48645e;max-width:570px}
        .tags{display:flex;gap:8px;flex-wrap:wrap;margin:23px 0}
        .tag{padding:6px 11px;border-radius:20px;background:rgba(255,255,255,.7);color:var(--mint-deep);font-size:12px}
        .download-box{display:flex;align-items:center;gap:18px;margin-top:26px}
        .qr{width:82px;height:82px;border-radius:10px;background:#fff;display:grid;place-items:center;color:var(--dark);font-size:11px;text-align:center;border:5px solid #fff}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s}
        .btn-primary{background:var(--orange);color:#fff}
        .btn-primary:hover{background:var(--orange-deep);transform:translateY(-2px);box-shadow:0 10px 20px #efb3a3}
        .btn-dark{background:var(--dark);color:#fff}
        .btn-dark:hover{background:var(--orange);transform:translateY(-2px)}
        .btn-light{background:#fff;border:1px solid var(--line)}
        .btn-light:hover{border-color:var(--orange);color:var(--orange)}
        .scene-section{background:#fff}
        .scene-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:15px}
        .scene-card{min-height:195px;border:1px solid var(--line);border-radius:18px;padding:26px;background:var(--paper);position:relative;overflow:hidden;transition:.25s}
        .scene-card:first-child{grid-row:span 2;min-height:405px;background:#fff0e8}
        .scene-card:nth-child(2){background:#e4f5ee}
        .scene-card:nth-child(3){background:#fff}
        .scene-card:nth-child(4){background:var(--dark);color:#fff}
        .scene-card:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:var(--shadow)}
        .scene-card h3{font-size:21px;margin:0 0 8px}
        .scene-card p{font-size:14px;color:var(--muted);max-width:230px}
        .scene-card:nth-child(4) p{color:#cbd7d3}
        .scene-number{font-size:12px;color:var(--orange-deep);font-weight:800}
        .compare-section{background:#fbfaf6}
        .compare-table{display:grid;grid-template-columns:1.1fr 1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
        .compare-table div{padding:19px 22px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);font-size:14px}
        .compare-table div:nth-child(3n){border-right:0}
        .compare-table .head{background:#fff0e9;color:var(--orange-deep);font-weight:800}
        .compare-table .label{font-weight:700;color:var(--ink)}
        .content-section{background:#fff}
        .content-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px}
        .content-card{padding:25px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.25s}
        .content-card:hover{border-color:var(--orange);transform:translateY(-3px);box-shadow:var(--shadow)}
        .content-card .tag{background:#e8f7f0;display:inline-block}
        .content-card h3{font-size:19px;line-height:1.4;margin:16px 0 8px}
        .content-card p{font-size:13px;color:var(--muted);margin:0 0 17px}
        .card-link{font-weight:700;font-size:13px;color:var(--orange-deep)}
        .faq-section{background:var(--soft)}
        .faq-list{max-width:900px;margin:0 auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{padding:20px 5px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
        .faq-item summary:after{content:"＋";color:var(--orange);font-size:20px}
        .faq-item[open] summary:after{content:"－"}
        .faq-item p{padding:0 35px 20px 5px;color:var(--muted);font-size:14px;margin:0}
        .cta-section{padding:72px 0;background:var(--orange);color:#fff}
        .cta-wrap{display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-wrap h2{font-size:34px;line-height:1.25;margin:0 0 8px}
        .cta-wrap p{margin:0;color:#ffe9e1}
        .cta-wrap .btn{background:#fff;color:var(--orange-deep)}
        .cta-wrap .btn:hover{background:var(--dark);color:#fff}
        .site-footer{background:var(--dark);color:#fff;padding:65px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding-bottom:45px}
        .footer-brand{color:#fff;margin-bottom:16px}
        .footer-desc{color:#b9c6c2;font-size:14px;max-width:280px}
        .footer-col h3{font-size:15px;margin:0 0 16px;color:#fff}
        .footer-col a{display:block;color:#b9c6c2;font-size:13px;margin:9px 0;transition:.2s}
        .footer-col a:hover{color:#ff9a83}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#91a29d;font-size:12px}
        :focus-visible{outline:3px solid rgba(242,107,79,.45);outline-offset:3px}
        @media(max-width:1024px){
            .page-hero-grid,.app-layout{grid-template-columns:1fr;gap:35px}
            .hero-note{max-width:600px}
            .app-layout{justify-items:center}
            .app-copy{width:100%}
            .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .site-header{height:68px}
            .menu-toggle{display:block}
            .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:#fffdf8;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav-links.open{display:flex}
            .nav-links a{padding:12px 15px}
            .page-hero{padding:55px 0 52px}
            .section{padding:60px 0}
            .section-head,.cta-wrap{display:block}
            .section-desc{margin-top:17px}
            .feature-layout,.content-grid{grid-template-columns:1fr}
            .feature-main{min-height:300px}
            .feature-list{grid-template-columns:1fr 1fr}
            .scene-grid{grid-template-columns:1fr 1fr}
            .scene-card:first-child{grid-row:auto;grid-column:span 2;min-height:240px}
            .compare-table{font-size:13px}
            .compare-table div{padding:13px 10px}
            .cta-wrap .btn{margin-top:24px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand-col{grid-column:span 2}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            h1{font-size:40px}
            .section-title,.app-copy h2{font-size:29px}
            .feature-list,.scene-grid{grid-template-columns:1fr}
            .scene-card:first-child{grid-column:auto}
            .phone{transform:none;width:235px;height:430px}
            .download-box{align-items:flex-start;flex-wrap:wrap}
            .compare-table{grid-template-columns:1fr}
            .compare-table div{border-right:0}
            .compare-table .head{display:none}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand-col{grid-column:auto}
        }