/* roulang page: index */
:root{
            --ink:#241b2d;
            --ink-soft:#534957;
            --purple:#392344;
            --purple-2:#563664;
            --lime:#c8ed68;
            --lime-dark:#91b83f;
            --paper:#f6f3ef;
            --cream:#fffdf9;
            --line:#e6dfd8;
            --orange:#d9824b;
            --muted:#827984;
            --shadow:0 18px 50px rgba(54,37,55,.10);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,249,.94);border-bottom:1px solid rgba(230,223,216,.9);backdrop-filter:blur(14px)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--purple);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:20px;box-shadow:4px 4px 0 var(--lime)}
        .brand-name{font-size:15px;font-weight:800;line-height:1.25;letter-spacing:.01em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:3px}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{padding:10px 13px;border-radius:10px;font-size:14px;color:var(--ink-soft);transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#eee7f0;color:var(--purple);font-weight:700}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-size:14px;font-weight:800;transition:.25s}
        .nav-action{background:var(--purple);color:#fff}
        .nav-action:hover,.btn-primary:hover{background:var(--purple-2);transform:translateY(-2px);box-shadow:0 8px 18px rgba(57,35,68,.18)}
        .menu-toggle{display:none;background:transparent;color:var(--purple);font-size:25px}
        .hero{padding:86px 0 75px;background:var(--cream);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
        .hero h1{font-size:clamp(38px,5vw,68px);line-height:1.13;letter-spacing:-.055em;margin:18px 0 22px;max-width:680px}
        .hero h1 em{font-style:normal;color:var(--purple-2)}
        .hero-copy{color:var(--ink-soft);font-size:17px;max-width:600px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
        .btn-primary{background:var(--purple);color:#fff}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d6f486;transform:translateY(-2px)}
        .btn-outline{border:1px solid #cfc3d2;color:var(--purple);background:transparent}
        .btn-outline:hover{background:#eee7f0;border-color:var(--purple)}
        .hero-note{display:flex;gap:18px;margin-top:28px;color:var(--muted);font-size:12px}
        .hero-note span{display:flex;align-items:center;gap:7px}
        .hero-note b{width:7px;height:7px;border-radius:50%;background:var(--lime-dark)}
        .visual-stage{min-height:420px;position:relative;background:#eee8ee;border-radius:32px;overflow:hidden;padding:28px;display:flex;align-items:flex-end;justify-content:center}
        .visual-stage:before{content:"";position:absolute;width:330px;height:330px;border-radius:50%;background:var(--lime);top:-100px;right:-80px}
        .visual-stage:after{content:"";position:absolute;width:170px;height:170px;border:1px solid var(--orange);border-radius:50%;left:-60px;bottom:-35px}
        .device{position:relative;z-index:1;width:220px;height:390px;border:8px solid var(--purple);border-radius:29px;background:#fff;box-shadow:20px 22px 0 rgba(57,35,68,.12);padding:19px 15px}
        .device-top{height:7px;width:62px;border-radius:8px;background:#d9d2dc;margin:0 auto 22px}
        .device-label{font-size:11px;color:var(--orange);font-weight:800}
        .device-title{font-size:24px;font-weight:900;line-height:1.2;margin:8px 0 20px}
        .device-panel{height:92px;background:var(--purple);border-radius:14px;padding:15px;color:#fff}
        .device-panel strong{display:block;color:var(--lime);font-size:19px}
        .device-lines{margin-top:19px;display:grid;gap:10px}
        .device-lines i{display:block;height:10px;background:#eee8ee;border-radius:8px}
        .device-lines i:nth-child(2){width:70%}.device-lines i:nth-child(3){width:84%}
        section{padding:92px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.04em;margin-top:9px}
        .section-head p{max-width:480px;color:var(--muted);font-size:14px}
        .download-panel{display:grid;grid-template-columns:1.1fr .9fr;background:var(--purple);color:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
        .download-content{padding:48px}
        .download-content h2{font-size:36px;line-height:1.25;margin:12px 0}
        .download-content p{color:#d9cddd;max-width:520px}
        .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0}
        .badge{display:inline-flex;align-items:center;border-radius:30px;padding:6px 11px;background:rgba(255,255,255,.1);color:#eee6f0;font-size:12px}
        .download-art{background:#4d2e59;display:flex;align-items:center;justify-content:center;position:relative;min-height:280px}
        .qr{width:132px;height:132px;background:repeating-linear-gradient(45deg,#fff 0 5px,#241b2d 5px 9px);border:11px solid #fff;border-radius:7px;position:relative}
        .qr:after{content:"二维码入口";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:#fff;color:var(--purple);font-size:11px;white-space:nowrap;padding:3px}
        .h5-band{background:var(--lime);border-radius:var(--radius);padding:32px 40px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .h5-band h2{font-size:30px;line-height:1.25}
        .h5-band p{font-size:14px;color:#4f6030;margin-top:5px}
        .feature-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:28px;align-items:stretch}
        .feature-nav{background:var(--purple);border-radius:var(--radius);padding:18px;color:#fff}
        .feature-nav button{width:100%;text-align:left;padding:19px 17px;background:transparent;color:#cbbdce;border-bottom:1px solid rgba(255,255,255,.12);font-weight:700;transition:.2s}
        .feature-nav button:hover,.feature-nav button.active{color:var(--lime);padding-left:23px}
        .feature-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1fr .8fr;gap:25px;align-items:center}
        .feature-main h3{font-size:31px;margin:10px 0}
        .feature-main p{color:var(--muted);font-size:15px}
        .feature-list{list-style:none;margin-top:23px;display:grid;gap:13px}
        .feature-list li:before{content:"✓";display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--lime);font-size:12px;font-weight:900;margin-right:9px}
        .screen-card{background:#f0ebf1;border-radius:20px;padding:20px;min-height:210px;transform:rotate(2deg)}
        .screen-bar{height:12px;width:55%;background:var(--purple);border-radius:5px;margin-bottom:23px}
        .screen-row{height:45px;background:#fff;border-radius:10px;margin:10px 0;border-left:5px solid var(--lime)}
        .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .scenario{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;min-height:170px;transition:.25s}
        .scenario:hover,.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c8b9ce}
        .scenario-icon{font-size:25px;color:var(--orange);margin-bottom:14px}
        .scenario h3{font-size:19px;margin-bottom:8px}.scenario p{color:var(--muted);font-size:14px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
        .step{padding:28px 25px 10px;border-right:1px solid var(--line);position:relative}
        .step:last-child{border:0}.step-no{font-size:12px;color:var(--orange);font-weight:900;letter-spacing:.1em}.step h3{font-size:18px;margin:12px 0 8px}.step p{font-size:13px;color:var(--muted)}
        .news-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px}
        .news-feature{background:var(--purple);color:#fff;border-radius:var(--radius);padding:36px;min-height:300px;display:flex;flex-direction:column;justify-content:end}
        .news-feature .badge{align-self:flex-start;margin-bottom:auto;background:var(--orange);color:#fff}
        .news-feature h3{font-size:29px;line-height:1.35;margin:20px 0 10px}.news-feature p{color:#dacede;font-size:14px}
        .news-list{display:grid;gap:10px}
        .news-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:19px 22px;display:grid;grid-template-columns:1fr auto;gap:12px;transition:.2s}
        .news-item:hover{border-color:var(--purple-2);background:#fffcff}
        .news-item h3{font-size:16px}.news-item p{color:var(--muted);font-size:13px;margin-top:4px}
        .news-info{font-size:12px;color:var(--orange);white-space:nowrap}
        .timeline{border-left:2px solid #d9cadc;padding-left:28px;display:grid;gap:26px}
        .timeline-item{position:relative}.timeline-item:before{content:"";position:absolute;left:-36px;top:7px;width:13px;height:13px;border-radius:50%;background:var(--lime);border:3px solid var(--paper)}
        .timeline-item strong{color:var(--orange);font-size:12px}.timeline-item h3{font-size:18px;margin:3px 0}.timeline-item p{color:var(--muted);font-size:14px}
        .compare{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
        .compare-col{padding:32px}.compare-col:first-child{background:#eee7f0}.compare-col h3{font-size:24px;margin-bottom:17px}.compare-col ul{list-style:none;display:grid;gap:12px;color:var(--ink-soft);font-size:14px}.compare-col li:before{content:"·";font-size:26px;color:var(--orange);vertical-align:-3px;margin-right:9px}
        .activity-strip{display:flex;align-items:center;gap:20px;padding:25px 28px;background:#fff6ed;border:1px solid #f1d8c2;border-radius:15px}.activity-date{color:var(--orange);font-weight:900;font-size:13px}.activity-strip h3{font-size:18px}.activity-strip p{color:var(--muted);font-size:13px}
        .safety{background:#e9f2d0;border-radius:var(--radius);padding:34px 40px;display:grid;grid-template-columns:.7fr 1.3fr;gap:35px;align-items:center}.safety h2{font-size:29px;line-height:1.3}.safety p{color:#59633d;font-size:14px}.checks{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.check{background:rgba(255,255,255,.58);padding:13px 16px;border-radius:10px;font-size:13px}.check b{color:var(--lime-dark);margin-right:7px}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px}.faq-item summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--orange);font-size:21px}.faq-item[open] summary:after{content:"−"}.faq-item p{color:var(--muted);font-size:14px;padding-top:12px}
        .recommend-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:15px}.article-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:24px;transition:.25s}.article-card.large{background:#f0e8f2;min-height:205px}.article-card h3{font-size:20px;line-height:1.4;margin:15px 0 8px}.article-card p{font-size:13px;color:var(--muted)}.article-meta{color:var(--orange);font-size:12px;font-weight:800}.article-small{display:grid;gap:15px}.article-small .article-card{padding:18px}.article-small h3{font-size:16px;margin:7px 0}
        .cta{background:var(--purple);color:#fff;border-radius:var(--radius);padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:31px;line-height:1.3}.cta p{color:#d9cddd;font-size:14px;margin-top:6px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
        .site-footer{background:#201827;color:#d8cedb;padding:52px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.13)}.footer-brand{color:#fff;font-weight:800;font-size:16px}.footer-brand small{display:block;color:#a99aaa;font-size:11px;margin-top:7px;font-weight:500}.footer-links{display:flex;gap:28px;flex-wrap:wrap}.footer-links a{font-size:13px;color:#c7bacb}.footer-links a:hover{color:var(--lime)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#8f8192;font-size:12px}
        .empty-state{padding:28px;border:1px dashed #cdbdce;border-radius:14px;color:var(--muted);background:#fff}
        :focus-visible{outline:3px solid var(--lime-dark);outline-offset:3px}
        @media(max-width:1024px){.hero-grid{gap:35px}.nav-links a{padding:9px 8px}.brand{min-width:210px}.feature-layout,.news-wrap{grid-template-columns:1fr}.scenario-grid{grid-template-columns:repeat(3,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.nav-wrap{height:68px}.brand{min-width:0}.brand-name{font-size:13px}.nav-action{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:var(--cream);padding:10px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.hero{padding:55px 0}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:43px}.visual-stage{min-height:350px}.device{transform:scale(.86)}section{padding:64px 0}.download-panel,.safety{grid-template-columns:1fr}.download-content{padding:32px}.download-art{min-height:220px}.h5-band,.cta,.footer-top,.footer-bottom{flex-direction:column;align-items:flex-start}.feature-main{grid-template-columns:1fr;padding:28px}.scenario-grid,.steps{grid-template-columns:1fr 1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.compare,.faq-grid,.recommend-grid{grid-template-columns:1fr}.checks{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:13px}}
        @media(max-width:520px){.hero h1{font-size:37px}.hero-copy{font-size:15px}.hero-actions,.hero-actions .btn,.cta-actions,.cta-actions .btn{width:100%}.hero-note{display:grid;gap:7px}.visual-stage{min-height:300px}.device{transform:scale(.72);margin-bottom:-35px}.h5-band{padding:27px 23px}.h5-band h2{font-size:25px}.download-content h2{font-size:29px}.scenario-grid,.steps{grid-template-columns:1fr}.activity-strip{align-items:flex-start;flex-direction:column;gap:7px}.safety{padding:28px 23px}.cta{padding:31px 24px}.cta h2{font-size:26px}.news-item{grid-template-columns:1fr}.news-info{order:-1}.footer-links{gap:15px}}

/* roulang page: article */
:root{
            --ink:#241b2d;
            --ink-soft:#534957;
            --purple:#392344;
            --purple-2:#563664;
            --lime:#c8ed68;
            --lime-dark:#91b83f;
            --paper:#f6f3ef;
            --cream:#fffdf9;
            --line:#e6dfd8;
            --orange:#d9824b;
            --muted:#827984;
            --shadow:0 18px 50px rgba(54,37,55,.10);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,249,.95);border-bottom:1px solid rgba(230,223,216,.9);backdrop-filter:blur(14px)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--purple);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:20px;box-shadow:4px 4px 0 var(--lime)}
        .brand-name{font-size:15px;font-weight:800;line-height:1.25;letter-spacing:.01em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:3px}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{padding:10px 13px;border-radius:10px;font-size:14px;color:var(--ink-soft);transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#eee7f0;color:var(--purple);font-weight:700}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-size:14px;font-weight:800;transition:.25s}
        .nav-action{background:var(--purple);color:#fff}
        .nav-action:hover,.btn-primary:hover{background:var(--purple-2);transform:translateY(-2px);box-shadow:0 8px 18px rgba(57,35,68,.18)}
        .menu-toggle{display:none;background:transparent;color:var(--purple);font-size:25px}
        .page-banner{background:var(--cream);padding:58px 0 48px;border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
        .breadcrumb a:hover{color:var(--purple)}
        .breadcrumb span{color:#b3a9b0}
        .eyebrow,.section-kicker{color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.16em}
        .page-banner h1{max-width:900px;font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-.045em;margin:14px 0 18px}
        .article-lead{max-width:780px;color:var(--ink-soft);font-size:17px;margin:0}
        .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:25px;color:var(--muted);font-size:13px}
        .meta-label{display:inline-flex;align-items:center;gap:7px}
        .meta-label b{width:7px;height:7px;border-radius:50%;background:var(--lime-dark);display:inline-block}
        main{padding-bottom:88px}
        .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:64px;align-items:start;padding-top:64px}
        .article-body{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,58px);box-shadow:0 8px 30px rgba(54,37,55,.04)}
        .article-body h2{font-size:28px;line-height:1.35;margin:34px 0 15px;color:var(--purple)}
        .article-body h3{font-size:21px;line-height:1.45;margin:28px 0 12px;color:var(--purple)}
        .article-body p{font-size:16px;color:#443b47;line-height:2;margin:0 0 20px}
        .article-body ul,.article-body ol{padding-left:25px;color:#443b47;margin:16px 0 24px}
        .article-body li{padding:4px 0}
        .article-body blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--lime-dark);background:#f0eadf;color:var(--ink-soft);border-radius:0 12px 12px 0}
        .article-body img{border-radius:14px;margin:25px auto}
        .article-body table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
        .article-body th,.article-body td{padding:12px;border:1px solid var(--line);text-align:left}
        .article-body th{background:#eee7f0;color:var(--purple)}
        .article-body a{color:var(--purple-2);text-decoration:underline;text-underline-offset:3px}
        .article-aside{position:sticky;top:102px}
        .aside-card{background:var(--purple);color:#fff;border-radius:var(--radius);padding:26px}
        .aside-card h2{font-size:19px;margin:0 0 14px}
        .aside-card p{font-size:13px;color:#d9cede;margin:0 0 20px}
        .aside-link{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-top:1px solid rgba(255,255,255,.15);font-size:14px;color:#fff}
        .aside-link:hover{color:var(--lime)}
        .article-tools{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;padding-top:25px;border-top:1px solid var(--line)}
        .btn-primary{background:var(--purple);color:#fff}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d6f486;transform:translateY(-2px)}
        .btn-outline{border:1px solid #cfc3d2;color:var(--purple);background:transparent}
        .btn-outline:hover{background:#eee7f0;border-color:var(--purple)}
        .reading-panel{margin-top:28px;background:#eee7f0;border-radius:14px;padding:20px 22px}
        .reading-panel strong{display:block;color:var(--purple);font-size:15px;margin-bottom:5px}
        .reading-panel p{margin:0;color:var(--ink-soft);font-size:13px}
        .bottom-action{margin-top:70px;background:var(--purple);color:#fff;border-radius:24px;padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .bottom-action h2{font-size:28px;line-height:1.3;margin:0 0 8px}
        .bottom-action p{margin:0;color:#d9cede;font-size:14px}
        .bottom-action .btn{white-space:nowrap}
        .empty-state{text-align:center;padding:48px 15px;color:var(--muted)}
        .empty-state strong{display:block;color:var(--purple);font-size:24px;margin-bottom:12px}
        .site-footer{background:#21182a;color:#fff;padding:40px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:flex-start;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.14)}
        .footer-brand{font-size:15px;font-weight:800}
        .footer-brand small{display:block;color:#b9aabd;font-size:12px;font-weight:400;margin-top:7px}
        .footer-links{display:flex;flex-wrap:wrap;gap:9px 20px;color:#d2c5d5;font-size:13px}
        .footer-links a{transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#9e90a3;font-size:12px}
        :focus-visible{outline:3px solid var(--lime-dark);outline-offset:3px}
        @media(max-width:1024px){
            .nav-wrap{gap:14px}.brand{min-width:220px}.nav-links a{padding:9px 8px}
            .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand{min-width:0}.brand-name{font-size:13px}.brand-name small{font-size:9px}
            .nav-action{display:none}.menu-toggle{display:block}
            .nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:10px;background:var(--cream);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:13px 15px}
            .page-banner{padding:40px 0 35px}.page-banner h1{font-size:36px}
            .article-layout{display:block;padding-top:35px}.article-aside{position:static;margin-top:25px}
            .bottom-action{margin-top:45px;padding:30px 24px;display:block}.bottom-action .btn{margin-top:20px;width:100%}
            .footer-top,.footer-bottom{display:block}.footer-links{margin-top:22px}.footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            .brand-mark{width:34px;height:34px;font-size:18px}.brand-name small{letter-spacing:.04em}
            .article-body{padding:22px 19px}.article-body p{font-size:15px}
            .article-body h2{font-size:24px}.article-body h3{font-size:19px}
            .article-tools .btn{width:100%}.breadcrumb{font-size:12px}
        }

/* roulang page: category1 */
:root{
            --ink:#241b2d;
            --ink-soft:#534957;
            --purple:#392344;
            --purple-2:#563664;
            --lime:#c8ed68;
            --lime-dark:#91b83f;
            --paper:#f6f3ef;
            --cream:#fffdf9;
            --line:#e6dfd8;
            --orange:#d9824b;
            --muted:#827984;
            --shadow:0 18px 50px rgba(54,37,55,.10);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--paper);
            color:var(--ink);
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,253,249,.95);
            border-bottom:1px solid rgba(230,223,216,.9);
            backdrop-filter:blur(14px);
        }
        .nav-wrap{
            height:76px;display:flex;align-items:center;
            justify-content:space-between;gap:28px;
        }
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;
            background:var(--purple);color:var(--lime);
            display:grid;place-items:center;font-weight:900;font-size:20px;
            box-shadow:4px 4px 0 var(--lime);
        }
        .brand-name{font-size:15px;font-weight:800;line-height:1.25;letter-spacing:.01em}
        .brand-name small{
            display:block;color:var(--muted);font-size:10px;
            letter-spacing:.12em;margin-top:3px;
        }
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{
            padding:10px 13px;border-radius:10px;font-size:14px;
            color:var(--ink-soft);transition:.25s;
        }
        .nav-links a:hover,.nav-links a.active{
            background:#eee7f0;color:var(--purple);font-weight:700;
        }
        .nav-action,.btn{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            border-radius:11px;padding:12px 19px;font-size:14px;
            font-weight:800;transition:.25s;
        }
        .nav-action{background:var(--purple);color:#fff}
        .nav-action:hover,.btn-primary:hover{
            background:var(--purple-2);transform:translateY(-2px);
            box-shadow:0 8px 18px rgba(57,35,68,.18);
        }
        .menu-toggle{display:none;background:transparent;color:var(--purple);font-size:25px}
        .page-intro{
            padding:72px 0 58px;
            background:var(--cream);
            border-bottom:1px solid var(--line);
        }
        .crumbs{
            display:flex;align-items:center;gap:10px;
            color:var(--muted);font-size:13px;margin-bottom:28px;
        }
        .crumbs a:hover{color:var(--purple)}
        .crumbs span{color:#b5aab8}
        .intro-layout{
            display:grid;grid-template-columns:1.2fr .8fr;
            align-items:end;gap:70px;
        }
        .eyebrow,.section-kicker{
            color:var(--orange);font-size:12px;font-weight:900;
            letter-spacing:.16em;text-transform:uppercase;
        }
        h1,h2,h3,p{margin-top:0}
        .page-intro h1{
            font-size:clamp(36px,5vw,62px);
            line-height:1.14;letter-spacing:-.055em;
            margin:15px 0 20px;max-width:720px;
        }
        .page-intro h1 em{font-style:normal;color:var(--purple-2)}
        .intro-copy{color:var(--ink-soft);font-size:17px;max-width:690px;margin-bottom:0}
        .intro-stamp{
            padding:24px;background:#eee7f0;border-radius:18px;
            border:1px solid #ded0e1;position:relative;overflow:hidden;
        }
        .intro-stamp:after{
            content:"APP";position:absolute;right:-8px;bottom:-24px;
            font-size:82px;font-weight:900;color:rgba(86,54,100,.08);
        }
        .stamp-label{font-size:11px;color:var(--orange);font-weight:900;letter-spacing:.12em}
        .stamp-title{font-size:23px;font-weight:900;line-height:1.25;margin:8px 0}
        .stamp-text{font-size:13px;color:var(--muted);margin:0;position:relative;z-index:1}
        section{padding:86px 0}
        .section-head{
            display:flex;justify-content:space-between;align-items:end;
            gap:30px;margin-bottom:32px;
        }
        .section-head h2{
            font-size:clamp(28px,3vw,42px);
            line-height:1.2;letter-spacing:-.04em;margin:9px 0 0;
        }
        .section-head p{max-width:480px;color:var(--muted);font-size:14px;margin:0}
        .download-section{background:var(--purple);color:#fff}
        .download-layout{
            display:grid;grid-template-columns:1.05fr .95fr;
            gap:28px;align-items:stretch;
        }
        .download-panel{
            background:#fff;color:var(--ink);border-radius:var(--radius);
            padding:38px;box-shadow:var(--shadow);
        }
        .download-panel h2{font-size:34px;line-height:1.25;margin:12px 0}
        .download-panel p{color:var(--muted);font-size:15px}
        .download-meta{display:flex;gap:9px;flex-wrap:wrap;margin:24px 0}
        .badge{
            display:inline-flex;align-items:center;border-radius:30px;
            padding:6px 11px;background:#eee7f0;color:var(--purple);
            font-size:12px;font-weight:700;
        }
        .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
        .btn-primary{background:var(--purple);color:#fff}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d6f486;transform:translateY(-2px)}
        .btn-outline{border:1px solid #cfc3d2;color:var(--purple);background:transparent}
        .btn-outline:hover{background:#eee7f0;border-color:var(--purple)}
        .download-note{font-size:12px!important;color:var(--muted)!important;margin:20px 0 0!important}
        .download-visual{
            min-height:330px;border-radius:var(--radius);
            background:#51315d;position:relative;overflow:hidden;
            display:flex;align-items:center;justify-content:center;
        }
        .download-visual:before{
            content:"";position:absolute;width:280px;height:280px;
            border-radius:50%;background:var(--lime);top:-95px;right:-60px;
        }
        .phone{
            width:178px;height:300px;border:8px solid #20152a;
            border-radius:28px;background:#fbf8f4;position:relative;
            z-index:1;box-shadow:18px 22px 0 rgba(25,14,31,.2);
            padding:26px 13px 14px;
        }
        .phone:before{
            content:"";position:absolute;top:8px;left:50%;
            transform:translateX(-50%);width:48px;height:5px;
            border-radius:9px;background:#33213d;
        }
        .phone-logo{font-weight:900;font-size:19px;color:var(--purple);margin:12px 0 18px}
        .phone-line{height:38px;background:#eee7f0;border-radius:9px;margin:9px 0;border-left:4px solid var(--lime-dark)}
        .phone-button{height:32px;background:var(--purple);border-radius:8px;margin-top:18px}
        .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .step-card{
            background:var(--cream);border:1px solid var(--line);
            border-radius:var(--radius);padding:25px 22px;
            transition:.25s;
        }
        .step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c8b9ce}
        .step-number{
            width:38px;height:38px;border-radius:12px;background:var(--lime);
            display:grid;place-items:center;color:var(--ink);font-weight:900;
            margin-bottom:22px;
        }
        .step-card h3{font-size:18px;margin-bottom:9px}
        .step-card p{font-size:13px;color:var(--muted);margin:0}
        .timeline-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:34px}
        .timeline-intro{
            background:#eee7f0;border-radius:var(--radius);padding:34px;
            border:1px solid #ded0e1;
        }
        .timeline-intro h2{font-size:32px;line-height:1.25;margin:12px 0 15px}
        .timeline-intro p{color:var(--muted);font-size:14px}
        .version-list{display:grid;gap:12px}
        .version-item{
            display:grid;grid-template-columns:92px 1fr auto;gap:20px;
            align-items:center;background:#fff;border:1px solid var(--line);
            border-radius:14px;padding:20px 22px;transition:.2s;
        }
        .version-item:hover{border-color:var(--purple-2);box-shadow:0 8px 24px rgba(54,37,55,.07)}
        .version-code{font-size:17px;font-weight:900;color:var(--purple)}
        .version-item h3{font-size:16px;margin:0 0 3px}
        .version-item p{font-size:13px;color:var(--muted);margin:0}
        .version-date{font-size:12px;color:var(--orange);white-space:nowrap}
        .device-section{background:#fff}
        .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .device-card{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
        .device-icon{font-size:28px;margin-bottom:15px}
        .device-card h3{font-size:20px;margin-bottom:8px}
        .device-card p{font-size:14px;color:var(--muted);margin:0}
        .check-list{list-style:none;padding:0;margin:17px 0 0;display:grid;gap:8px}
        .check-list li{font-size:13px;color:var(--ink-soft)}
        .check-list li:before{content:"✓";color:var(--lime-dark);font-weight:900;margin-right:8px}
        .notice{
            display:flex;align-items:flex-start;gap:16px;
            padding:20px 24px;border-radius:14px;
            background:#fff4e9;border:1px solid #f0d4bd;color:var(--ink-soft);
            margin-top:24px;font-size:14px;
        }
        .notice strong{color:var(--orange);white-space:nowrap}
        .faq-section{padding-top:72px}
        .faq-list{max-width:850px;margin:auto;display:grid;gap:10px}
        .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
        .faq-question{
            width:100%;display:flex;justify-content:space-between;align-items:center;
            text-align:left;background:transparent;color:var(--ink);
            padding:20px 23px;font-weight:800;font-size:15px;
        }
        .faq-question span:last-child{font-size:22px;color:var(--purple);transition:.25s}
        .faq-answer{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .bottom-cta{padding:52px 0}
        .cta-box{
            background:var(--purple);color:#fff;border-radius:var(--radius);
            padding:38px 44px;display:flex;justify-content:space-between;
            align-items:center;gap:25px;
        }
        .cta-box h2{font-size:30px;margin:0 0 7px}
        .cta-box p{color:#dacede;font-size:14px;margin:0}
        .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
        .site-footer{background:#241b2d;color:#fff;padding:42px 0 22px}
        .footer-top{
            display:flex;justify-content:space-between;gap:30px;
            padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.14);
        }
        .footer-brand{font-size:16px;font-weight:800}
        .footer-brand small{display:block;color:#b9aabd;font-size:12px;font-weight:400;margin-top:7px}
        .footer-links{display:flex;gap:19px;flex-wrap:wrap;align-items:center}
        .footer-links a{color:#d9cedc;font-size:13px;transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{
            display:flex;justify-content:space-between;gap:20px;
            color:#a99aab;font-size:11px;padding-top:20px;
        }
        :focus-visible{outline:3px solid var(--lime-dark);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:0}
            .nav-links a{padding:9px 8px}
            .intro-layout,.download-layout,.timeline-wrap{grid-template-columns:1fr;gap:28px}
            .step-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .brand{min-width:0}
            .brand-name{font-size:13px}
            .brand-name small{font-size:8px}
            .nav-links{
                display:none;position:absolute;left:16px;right:16px;top:76px;
                padding:10px;background:var(--cream);border:1px solid var(--line);
                border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;
            }
            .nav-links.open{display:flex}
            .nav-links a{padding:13px 14px}
            .nav-action{display:none}
            .menu-toggle{display:block}
            .page-intro{padding:48px 0 42px}
            .page-intro h1{font-size:42px}
            section{padding:62px 0}
            .section-head{display:block;margin-bottom:24px}
            .section-head p{margin-top:14px}
            .download-panel{padding:27px}
            .download-panel h2{font-size:29px}
            .download-visual{min-height:290px}
            .step-grid,.device-grid{grid-template-columns:1fr}
            .version-item{grid-template-columns:1fr;gap:5px}
            .version-date{white-space:normal}
            .notice{display:block}
            .notice strong{display:block;margin-bottom:5px}
            .cta-box{display:block;padding:30px 25px}
            .cta-actions{margin-top:24px}
            .footer-top,.footer-bottom{display:block}
            .footer-links{margin-top:22px;gap:13px}
            .footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .brand-mark{width:34px;height:34px;font-size:18px}
            .brand{gap:9px}
            .page-intro h1{font-size:35px}
            .intro-copy{font-size:15px}
            .download-actions,.cta-actions{display:grid;grid-template-columns:1fr}
            .btn{width:100%}
            .phone{transform:scale(.9)}
        }

/* roulang page: category3 */
:root{
            --ink:#241b2d;
            --ink-soft:#534957;
            --purple:#392344;
            --purple-2:#563664;
            --lime:#c8ed68;
            --lime-dark:#91b83f;
            --paper:#f6f3ef;
            --cream:#fffdf9;
            --line:#e6dfd8;
            --orange:#d9824b;
            --muted:#827984;
            --shadow:0 18px 50px rgba(54,37,55,.10);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,249,.94);border-bottom:1px solid rgba(230,223,216,.9);backdrop-filter:blur(14px)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--purple);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:20px;box-shadow:4px 4px 0 var(--lime)}
        .brand-name{font-size:15px;font-weight:800;line-height:1.25;letter-spacing:.01em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:3px}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{padding:10px 13px;border-radius:10px;font-size:14px;color:var(--ink-soft);transition:.25s}
        .nav-links a:hover,.nav-links a.active{background:#eee7f0;color:var(--purple);font-weight:700}
        .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-size:14px;font-weight:800;transition:.25s}
        .nav-action{background:var(--purple);color:#fff}
        .nav-action:hover,.btn-primary:hover{background:var(--purple-2);transform:translateY(-2px);box-shadow:0 8px 18px rgba(57,35,68,.18)}
        .menu-toggle{display:none;background:transparent;color:var(--purple);font-size:25px}
        .btn-primary{background:var(--purple);color:#fff}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d6f486;transform:translateY(-2px)}
        .btn-outline{border:1px solid #cfc3d2;color:var(--purple);background:transparent}
        .btn-outline:hover{background:#eee7f0;border-color:var(--purple)}
        .page-intro{padding:70px 0 58px;background:var(--cream);border-bottom:1px solid var(--line)}
        .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:end}
        .eyebrow,.section-kicker{color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.16em}
        .page-intro h1{font-size:clamp(36px,5vw,64px);line-height:1.15;letter-spacing:-.055em;margin:17px 0 20px}
        .page-intro h1 em{font-style:normal;color:var(--purple-2)}
        .intro-copy{max-width:680px;color:var(--ink-soft);font-size:17px;margin:0}
        .crumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
        .crumbs a:hover{color:var(--purple)}
        .intro-panel{background:var(--purple);color:#fff;border-radius:var(--radius);padding:28px;position:relative;overflow:hidden}
        .intro-panel:after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(200,237,104,.65);border-radius:50%;right:-42px;top:-38px}
        .intro-panel strong{display:block;font-size:24px;line-height:1.3;margin-bottom:10px}
        .intro-panel p{color:#ded3e1;font-size:14px;margin:0;max-width:360px}
        section{padding:86px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
        .section-head h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.04em;margin:9px 0 0}
        .section-head p{max-width:490px;color:var(--muted);font-size:14px;margin:0}
        .feature-story{display:grid;grid-template-columns:1.15fr .85fr;gap:0;background:var(--purple);border-radius:var(--radius);overflow:hidden;color:#fff;box-shadow:var(--shadow)}
        .story-main{padding:42px 44px;min-height:320px;display:flex;flex-direction:column;justify-content:flex-end}
        .badge{display:inline-flex;align-items:center;border-radius:30px;padding:6px 11px;background:rgba(255,255,255,.12);color:#eee6f0;font-size:12px;width:max-content}
        .badge.orange{background:var(--orange);color:#fff}
        .story-main h2{font-size:32px;line-height:1.3;margin:22px 0 12px}
        .story-main p{color:#dacede;font-size:15px;max-width:600px;margin:0}
        .story-side{background:#eee8ee;color:var(--ink);padding:36px;position:relative;display:flex;align-items:center}
        .story-side:before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:var(--lime);right:-65px;top:-75px}
        .story-side-inner{position:relative;z-index:1}
        .story-side h3{font-size:25px;line-height:1.3;margin:14px 0}
        .story-side p{color:var(--muted);font-size:14px}
        .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:190px;transition:.25s}
        .topic-card:hover{transform:translateY(-5px);border-color:#c8b9ce;box-shadow:var(--shadow)}
        .topic-icon{width:42px;height:42px;border-radius:13px;background:#eee7f0;color:var(--purple);display:grid;place-items:center;font-weight:900;margin-bottom:20px}
        .topic-card h3{font-size:19px;margin:0 0 8px}
        .topic-card p{color:var(--muted);font-size:14px;margin:0}
        .timeline-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:46px;align-items:start}
        .timeline-intro{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
        .timeline-intro h3{font-size:25px;margin:12px 0}
        .timeline-intro p{color:var(--muted);font-size:14px;margin:0}
        .timeline{border-left:2px solid #d8c9db;padding-left:28px;display:grid;gap:28px}
        .timeline-item{position:relative}
        .timeline-item:before{content:"";position:absolute;left:-37px;top:7px;width:14px;height:14px;background:var(--lime);border:3px solid var(--paper);border-radius:50%;box-shadow:0 0 0 1px var(--lime-dark)}
        .timeline-item .status{color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.08em}
        .timeline-item h3{font-size:20px;margin:5px 0 4px}
        .timeline-item p{color:var(--muted);font-size:14px;margin:0;max-width:610px}
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .compare-card{padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
        .compare-card.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
        .compare-card h3{font-size:24px;margin:0 0 13px}
        .compare-card p{font-size:14px;color:var(--muted);margin:0 0 20px}
        .compare-card.dark p{color:#d9cede}
        .compare-list{list-style:none;padding:0;margin:0;display:grid;gap:11px}
        .compare-list li{font-size:14px;display:flex;gap:9px;align-items:flex-start}
        .compare-list li:before{content:"＋";color:var(--orange);font-weight:900}
        .faq-list{max-width:850px;margin:auto;display:grid;gap:10px}
        .faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
        .faq-question{width:100%;background:#fff;color:var(--ink);display:flex;justify-content:space-between;align-items:center;text-align:left;padding:20px 23px;font-weight:800}
        .faq-question span{color:var(--purple-2);font-size:22px;transition:.25s}
        .faq-answer{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span{transform:rotate(45deg)}
        .cta-band{padding:34px 38px;background:var(--lime);border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta-band h2{font-size:28px;line-height:1.25;margin:0 0 8px}
        .cta-band p{margin:0;color:#4d5b31;font-size:14px}
        .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
        .site-footer{background:var(--purple);color:#fff;padding:42px 0 24px}
        .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:flex-start;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.14)}
        .footer-brand{font-size:15px;font-weight:800}
        .footer-brand small{display:block;color:#cdbfd1;font-size:12px;font-weight:400;margin-top:7px}
        .footer-links{display:flex;gap:18px;flex-wrap:wrap;color:#d8cbda;font-size:13px}
        .footer-links a{transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#b9a9bc;font-size:12px;flex-wrap:wrap}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:0}.nav-links a{padding:9px 8px}
            .intro-grid,.feature-story,.timeline-wrap{grid-template-columns:1fr}
            .story-side{min-height:220px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand{min-width:0}.brand-name{font-size:13px}.brand-name small{font-size:8px}
            .nav-action{display:none}.menu-toggle{display:block}
            .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;background:var(--cream);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
            .nav-links.open{display:flex}.nav-links a{padding:13px 14px}
            .page-intro{padding:52px 0 42px}.page-intro h1{font-size:42px}
            section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:14px}
            .topic-grid,.compare{grid-template-columns:1fr}
            .story-main{padding:30px 26px;min-height:280px}.story-main h2{font-size:27px}
            .timeline-wrap{gap:25px}
            .cta-band{display:block;padding:28px}.cta-actions{margin-top:22px}
            .footer-top{display:block}.footer-links{margin-top:22px}
        }
        @media(max-width:520px){
            .page-intro h1{font-size:35px}.intro-copy{font-size:15px}
            .story-side{padding:28px}.topic-card{min-height:auto}
            .cta-actions .btn{width:100%}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }

/* roulang page: category2 */
:root{
            --ink:#241b2d;
            --ink-soft:#534957;
            --purple:#392344;
            --purple-2:#563664;
            --lime:#c8ed68;
            --lime-dark:#91b83f;
            --paper:#f6f3ef;
            --cream:#fffdf9;
            --line:#e6dfd8;
            --orange:#d9824b;
            --muted:#827984;
            --shadow:0 18px 50px rgba(54,37,55,.10);
            --shadow-soft:0 8px 24px rgba(54,37,55,.07);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
            background:var(--paper);
            color:var(--ink);
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(145,184,63,.65);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{
            position:sticky;
            top:0;
            z-index:50;
            background:rgba(255,253,249,.94);
            border-bottom:1px solid rgba(230,223,216,.9);
            backdrop-filter:blur(14px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;background:var(--purple);color:var(--lime);
            display:grid;place-items:center;font-weight:900;font-size:20px;box-shadow:4px 4px 0 var(--lime)
        }
        .brand-name{font-size:15px;font-weight:800;line-height:1.25;letter-spacing:.01em}
        .brand-name small{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;margin-top:3px}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{
            padding:10px 13px;border-radius:10px;font-size:14px;color:var(--ink-soft);
            transition:background .25s,color .25s,transform .25s
        }
        .nav-links a:hover,.nav-links a.active{background:#eee7f0;color:var(--purple);font-weight:700}
        .nav-action,.btn{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;
            padding:12px 19px;font-size:14px;font-weight:800;transition:.25s
        }
        .nav-action{background:var(--purple);color:#fff;white-space:nowrap}
        .nav-action:hover,.btn-primary:hover{background:var(--purple-2);transform:translateY(-2px);box-shadow:0 8px 18px rgba(57,35,68,.18)}
        .menu-toggle{display:none;background:transparent;color:var(--purple);font-size:25px;padding:5px}
        main{overflow:hidden}
        section{padding:86px 0}
        .section-kicker,.eyebrow{
            color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.16em;text-transform:uppercase
        }
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.04em;margin:9px 0 0}
        .section-head p{max-width:500px;color:var(--muted);font-size:14px;margin:0}
        .btn-primary{background:var(--purple);color:#fff}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d6f486;transform:translateY(-2px);box-shadow:0 8px 18px rgba(145,184,63,.22)}
        .btn-outline{border:1px solid #cfc3d2;color:var(--purple);background:transparent}
        .btn-outline:hover{background:#eee7f0;border-color:var(--purple)}
        .badge{
            display:inline-flex;align-items:center;border-radius:30px;padding:6px 11px;
            background:#eee7f0;color:var(--purple);font-size:12px;font-weight:800
        }
        .page-intro{padding:58px 0 46px;background:var(--cream);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px;margin-bottom:30px}
        .breadcrumb span{color:#b1a8af}
        .intro-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:42px;align-items:end}
        .intro-grid h1{font-size:clamp(36px,5vw,62px);line-height:1.12;letter-spacing:-.055em;margin:14px 0 18px}
        .intro-grid h1 em{font-style:normal;color:var(--purple-2)}
        .intro-copy{max-width:760px;font-size:16px;color:var(--ink-soft);margin:0}
        .intro-side{
            border-left:1px solid var(--line);padding:15px 0 15px 28px;
            display:grid;gap:13px
        }
        .intro-side div{font-size:13px;color:var(--muted)}
        .intro-side strong{display:block;color:var(--ink);font-size:15px;margin-top:3px}
        .access-section{padding-top:72px}
        .access-panel{
            background:var(--purple);border-radius:28px;color:#fff;padding:42px;
            display:grid;grid-template-columns:1.05fr .95fr;gap:38px;overflow:hidden;position:relative
        }
        .access-panel:before{
            content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(200,237,104,.42);
            border-radius:50%;right:-145px;top:-180px
        }
        .access-panel:after{
            content:"";position:absolute;width:150px;height:150px;border-radius:50%;
            background:var(--lime);opacity:.15;left:45%;bottom:-95px
        }
        .access-content,.access-visual{position:relative;z-index:1}
        .access-content h2{font-size:clamp(30px,3.4vw,45px);line-height:1.2;letter-spacing:-.04em;margin:15px 0}
        .access-content p{color:#ded3e0;margin:0;max-width:540px}
        .access-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
        .access-tips{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
        .access-tips span{
            color:#e8dfea;font-size:12px;padding:6px 10px;border-radius:30px;
            border:1px solid rgba(255,255,255,.16)
        }
        .h5-browser{
            min-height:285px;background:#f1eaf1;border-radius:22px;padding:18px;
            transform:rotate(2deg);box-shadow:14px 16px 0 rgba(200,237,104,.23)
        }
        .browser-bar{height:30px;border-radius:10px;background:#fff;display:flex;align-items:center;gap:6px;padding:0 10px}
        .browser-dot{width:7px;height:7px;border-radius:50%;background:var(--orange)}
        .browser-dot:nth-child(2){background:var(--lime-dark)}
        .browser-dot:nth-child(3){background:#aa9bae}
        .browser-url{height:12px;background:#eee7f0;border-radius:10px;flex:1;margin-left:6px}
        .browser-main{padding:20px 12px}
        .browser-brand{font-size:15px;color:var(--purple);font-weight:900}
        .browser-title{font-size:27px;color:var(--ink);font-weight:900;line-height:1.2;margin-top:17px}
        .browser-line{height:10px;border-radius:8px;background:#dcd3de;margin-top:12px}
        .browser-line.short{width:67%}
        .browser-cta{margin-top:24px;height:40px;background:var(--lime);border-radius:10px;width:55%}
        .steps-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:start}
        .steps-note{
            background:#eee7f0;border-radius:var(--radius);padding:32px;position:sticky;top:100px
        }
        .steps-note h3{font-size:24px;line-height:1.25;margin:12px 0}
        .steps-note p{font-size:14px;color:var(--ink-soft);margin:0}
        .notice-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:13px}
        .notice-list li{font-size:13px;color:var(--ink-soft);padding-left:25px;position:relative}
        .notice-list li:before{
            content:"";width:9px;height:9px;border-radius:50%;background:var(--lime-dark);
            position:absolute;left:0;top:8px
        }
        .steps-list{display:grid;gap:16px}
        .step-card{
            display:grid;grid-template-columns:58px 1fr;gap:18px;background:#fff;border:1px solid var(--line);
            border-radius:16px;padding:23px;transition:.25s
        }
        .step-card:hover{border-color:#c8b9ce;box-shadow:var(--shadow-soft);transform:translateX(4px)}
        .step-number{
            width:45px;height:45px;display:grid;place-items:center;border-radius:14px;
            background:var(--purple);color:var(--lime);font-size:16px;font-weight:900
        }
        .step-card h3{font-size:18px;margin:1px 0 7px}
        .step-card p{font-size:14px;color:var(--muted);margin:0}
        .compare-section{background:#efeae5}
        .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .compare-card{border:1px solid var(--line);border-radius:20px;padding:34px;background:var(--cream)}
        .compare-card.app{background:var(--purple);border-color:var(--purple);color:#fff}
        .compare-card h3{font-size:29px;margin:14px 0 19px}
        .compare-card.app p{color:#d8ccda}
        .compare-card p{font-size:14px;color:var(--ink-soft);margin:0}
        .compare-list{list-style:none;padding:0;margin:23px 0 0;display:grid;gap:0}
        .compare-list li{padding:13px 0;border-top:1px solid rgba(80,65,82,.14);font-size:14px}
        .compare-card.app .compare-list li{border-color:rgba(255,255,255,.16)}
        .compare-list b{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}
        .compare-card.app .compare-list b{color:#c9b9cd}
        .device-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
        .device-stage{
            min-height:355px;border-radius:22px;background:#e8e1e7;padding:28px;position:relative;
            overflow:hidden;display:flex;align-items:end;justify-content:center
        }
        .device-stage:before{
            content:"";position:absolute;width:280px;height:280px;border-radius:50%;
            background:var(--lime);right:-72px;top:-95px
        }
        .device-stage:after{
            content:"";position:absolute;width:210px;height:210px;border:1px solid var(--orange);
            border-radius:50%;left:-105px;bottom:-110px
        }
        .phone-one,.phone-two{
            position:relative;z-index:1;border:8px solid var(--ink);background:#fff;border-radius:28px;
            box-shadow:0 16px 28px rgba(36,27,45,.2)
        }
        .phone-one{width:162px;height:294px;transform:rotate(-6deg);margin-right:-20px}
        .phone-two{width:146px;height:267px;transform:rotate(7deg);margin-bottom:-15px}
        .phone-notch{height:17px;width:55px;background:var(--ink);border-radius:0 0 12px 12px;margin:auto}
        .phone-screen{padding:19px 12px}
        .phone-screen b{display:block;color:var(--purple);font-size:12px}
        .phone-screen i{display:block;height:8px;background:#e8dfeb;border-radius:10px;margin-top:12px}
        .phone-screen i:nth-child(3){width:72%}
        .phone-screen div{height:78px;margin-top:16px;background:var(--lime);border-radius:12px}
        .device-info{display:grid;gap:15px}
        .device-item{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px}
        .device-item h3{font-size:17px;margin:0 0 5px}
        .device-item p{font-size:14px;color:var(--muted);margin:0}
        .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px;align-items:start}
        .faq-copy h2{font-size:clamp(29px,3.2vw,42px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 14px}
        .faq-copy p{color:var(--muted);font-size:14px;margin:0}
        .faq-list{display:grid;gap:11px}
        .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
        .faq-question{
            width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
            text-align:left;background:transparent;padding:20px 22px;color:var(--ink);font-weight:800;font-size:16px
        }
        .faq-question span:last-child{font-size:22px;font-weight:400;color:var(--purple);transition:.25s}
        .faq-answer{display:none;padding:0 22px 21px;color:var(--ink-soft);font-size:14px}
        .faq-item.open{border-color:#c5b4ca}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta-section{padding:72px 0}
        .cta-box{
            background:linear-gradient(115deg,#392344 0%,#563664 100%);border-radius:24px;color:#fff;
            padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;
            position:relative;overflow:hidden
        }
        .cta-box:after{
            content:"";position:absolute;width:240px;height:240px;border-radius:50%;
            background:rgba(200,237,104,.15);right:-75px;top:-95px
        }
        .cta-content{position:relative;z-index:1}
        .cta-box h2{font-size:clamp(27px,3vw,39px);line-height:1.2;margin:8px 0}
        .cta-box p{margin:0;color:#ded3e0;font-size:14px}
        .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
        .site-footer{background:#241b2d;color:#eee6f0;padding:45px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:35px;align-items:flex-start;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
        .footer-brand{font-size:17px;font-weight:900;line-height:1.4;max-width:430px}
        .footer-brand small{display:block;color:#bcaebe;font-size:12px;font-weight:400;margin-top:7px}
        .footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px 19px}
        .footer-links a{font-size:13px;color:#d8ccda;transition:.2s}
        .footer-links a:hover{color:var(--lime)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:21px;color:#bcaebe;font-size:12px}
        @media (max-width:1024px){
            .nav-wrap{gap:15px}
            .brand{min-width:215px}
            .nav-links a{padding:9px 8px;font-size:13px}
            .nav-action{padding:11px 13px;font-size:13px}
            .intro-grid,.access-panel,.steps-wrap,.faq-layout{grid-template-columns:1fr;gap:30px}
            .intro-side{border-left:0;border-top:1px solid var(--line);padding:22px 0 0;grid-template-columns:repeat(3,1fr)}
            .steps-note{position:static}
            .device-grid{grid-template-columns:1fr}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px}
            .brand{min-width:0}
            .brand-name{font-size:13px}
            .brand-name small{font-size:8px}
            .brand-mark{width:34px;height:34px;font-size:18px;border-radius:10px}
            .menu-toggle{display:block;margin-left:auto}
            .nav-action{display:none}
            .nav-links{
                display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);
                padding:13px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
                flex-direction:column;align-items:stretch
            }
            .nav-links.open{display:flex}
            .nav-links a{padding:13px 14px}
            section{padding:62px 0}
            .page-intro{padding:42px 0 36px}
            .breadcrumb{margin-bottom:22px}
            .intro-grid h1{font-size:38px}
            .intro-side{grid-template-columns:1fr;gap:9px}
            .section-head{display:block;margin-bottom:25px}
            .section-head p{margin-top:13px}
            .access-panel{padding:28px 23px;border-radius:20px}
            .h5-browser{min-height:250px}
            .compare-grid{grid-template-columns:1fr}
            .compare-card{padding:27px}
            .faq-layout{gap:26px}
            .cta-box{padding:31px 25px;display:block}
            .cta-actions{margin-top:22px}
            .footer-top,.footer-bottom{display:block}
            .footer-links{justify-content:flex-start;margin-top:22px}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media (max-width:520px){
            .intro-grid h1{font-size:34px}
            .access-content h2{font-size:31px}
            .access-actions,.cta-actions{display:grid;grid-template-columns:1fr}
            .btn{width:100%;min-height:46px}
            .access-tips{gap:7px}
            .step-card{grid-template-columns:45px 1fr;padding:18px 16px;gap:13px}
            .step-number{width:39px;height:39px;border-radius:11px}
            .device-stage{min-height:290px;padding:20px}
            .phone-one{width:135px;height:245px}
            .phone-two{width:122px;height:223px}
            .faq-question{padding:17px;font-size:15px}
            .faq-answer{padding:0 17px 18px}
            .footer-brand{font-size:15px}
        }