/* roulang page: index */
:root{
  --lime:#c7f34a;
  --lime-dark:#9fc52c;
  --purple:#633f91;
  --purple-deep:#30213f;
  --orange:#f39a4b;
  --ink:#202221;
  --muted:#707673;
  --paper:#f4f2ec;
  --white:#fff;
  --line:#deded5;
  --dark:#202420;
  --radius:18px;
  --shadow:0 14px 34px rgba(31,35,30,.09);
  --max:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{height:78px;background:rgba(244,242,236,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}
.logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900;letter-spacing:-.5px}
.logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
.logo-text{font-size:16px;line-height:1.25}
.logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
.nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
.menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
.hero{padding:76px 0 48px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;width:430px;height:430px;border:1px solid #d5d9c8;border-radius:50%;right:-160px;top:-150px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px;text-transform:uppercase}
.eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:-2.5px;margin:18px 0 22px;max-width:760px}
.hero-copy{font-size:18px;color:var(--muted);max-width:600px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:10px;font-weight:800;font-size:14px;transition:.2s;outline:none}
.btn:hover{transform:translateY(-3px);box-shadow:0 8px 16px rgba(0,0,0,.12)}
.btn:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-dark{background:var(--dark);color:var(--white)}
.btn-light{background:var(--white);border:1px solid var(--line)}
.hero-panel{background:var(--dark);border-radius:26px;padding:22px;color:white;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #454b45;padding-bottom:16px}
.panel-brand{font-weight:900;color:var(--lime)}
.status{font-size:11px;color:#bfc8be;border:1px solid #566052;border-radius:20px;padding:4px 9px}
.panel-main{padding:28px 4px 18px}
.panel-main h2{font-size:28px;line-height:1.25;margin-bottom:12px}
.panel-main p{color:#b9c0b8;font-size:13px}
.panel-bars{display:flex;align-items:end;gap:9px;height:104px;margin:20px 0}
.panel-bars i{display:block;flex:1;background:var(--purple);border-radius:5px 5px 2px 2px}
.panel-bars i:nth-child(1){height:42%}.panel-bars i:nth-child(2){height:68%;background:var(--lime)}.panel-bars i:nth-child(3){height:52%;background:var(--orange)}.panel-bars i:nth-child(4){height:82%;background:var(--lime)}.panel-bars i:nth-child(5){height:62%;background:var(--purple)}
.panel-list{display:grid;gap:8px}
.panel-list div{display:flex;justify-content:space-between;padding:11px 12px;background:#2b302b;border-radius:8px;font-size:12px}
.panel-list b{color:var(--lime)}
.notice{border:1px solid #d6ddc5;background:#eef3df;border-radius:12px;padding:13px 17px;color:#59624e;font-size:12px;margin-top:30px}
.section{padding:86px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(28px,3vw,42px);line-height:1.2;margin-top:9px;letter-spacing:-1px}
.section-head p{color:var(--muted);max-width:460px}
.entry-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.entry-feature,.entry-small{border-radius:var(--radius);padding:30px;min-height:245px;transition:.25s;position:relative;overflow:hidden}
.entry-feature:hover,.entry-small:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.entry-feature{background:var(--purple);color:white}
.entry-feature:after{content:"01";position:absolute;right:25px;bottom:-24px;font-size:150px;font-weight:900;color:rgba(255,255,255,.08)}
.entry-small{min-height:113px;display:flex;flex-direction:column;justify-content:center}
.entry-small:nth-child(1){background:var(--orange)}
.entry-small:nth-child(2){background:var(--lime)}
.entry-small:nth-child(3){background:var(--dark);color:white}
.entry-side{display:grid;gap:18px}
.entry-feature h3{font-size:30px;margin:15px 0 10px;position:relative;z-index:1}
.entry-small h3{font-size:20px}.entry-small p,.entry-feature p{font-size:13px;opacity:.78;max-width:390px}
.arrow{position:absolute;right:25px;top:25px;font-size:22px}
.app-section{background:var(--dark);color:white;position:relative;overflow:hidden}
.app-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
.app-section .section-kicker{color:var(--lime)}
.app-section h2{font-size:clamp(30px,4vw,50px);line-height:1.15;margin:13px 0 18px}
.app-section p{color:#b9c0b8}
.feature-list{list-style:none;margin:25px 0;display:grid;gap:13px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;color:#e2e8de;font-size:14px}
.feature-list li:before{content:"✓";color:var(--lime);font-weight:900}
.app-visual{display:flex;justify-content:center;gap:17px;align-items:center}
.device{width:190px;border:7px solid #555d53;border-radius:28px;background:#edf0e8;color:var(--ink);padding:11px;box-shadow:0 18px 30px rgba(0,0,0,.25)}
.device.tall{transform:translateY(-25px) rotate(3deg);width:210px}
.device-head{height:11px;width:42px;border-radius:10px;background:#333;margin:0 auto 18px}
.screen-title{font-weight:900;font-size:14px;margin-bottom:14px}
.screen-chip{background:var(--lime);border-radius:7px;padding:10px;font-size:11px;font-weight:800;margin-bottom:9px}
.screen-row{height:42px;border-radius:7px;background:white;margin:8px 0;border-left:4px solid var(--purple)}
.version{font-size:11px;color:#aeb8aa;margin-top:15px}
.news-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}
.feature-news{background:white;border-radius:var(--radius);padding:30px;border-top:6px solid var(--orange);box-shadow:var(--shadow)}
.feature-news h3{font-size:27px;line-height:1.3;margin:16px 0}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:105px 1fr auto;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);align-items:center}
.news-item:hover h3{color:var(--purple)}
.news-item time{color:var(--orange);font-size:12px;font-weight:800}
.news-item h3{font-size:17px;transition:.2s}.news-item p{font-size:13px;color:var(--muted);margin-top:4px}
.tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:4px 9px;border-radius:5px}
.read-link{font-size:12px;font-weight:900;white-space:nowrap}
.empty-state{padding:42px;text-align:center;background:white;border:1px dashed #c7c9bf;border-radius:14px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--lime);gap:20px}
.step{padding:23px 0;border-bottom:1px solid var(--line)}
.step-num{font-size:38px;line-height:1;color:var(--purple);font-weight:900}
.step h3{margin:14px 0 6px;font-size:18px}.step p{font-size:13px;color:var(--muted)}
.index-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:14px}
.index-card{background:white;border:1px solid var(--line);border-radius:14px;padding:24px;min-height:150px;transition:.2s}
.index-card:first-child{background:var(--purple);color:white;min-height:205px}
.index-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.index-card h3{font-size:20px;margin:13px 0 8px}.index-card p{font-size:13px;opacity:.76}
.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
.faq-wrap h2{font-size:37px;line-height:1.2}.faq-wrap>div>p{color:var(--muted);margin-top:15px}
.faq{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:15px}
summary:after{content:"+";color:var(--purple);font-size:22px;line-height:1}
details[open] summary:after{content:"−"}
details p{color:var(--muted);font-size:14px;padding:13px 25px 0 0}
.compliance{background:#e9eee0;border:1px solid #d5ddc3;padding:22px;border-radius:14px;color:#59624e;font-size:13px}
.site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px;padding-bottom:42px;border-bottom:1px solid #454b45}
.footer-brand{font-size:20px;font-weight:900;color:var(--lime);margin-bottom:13px}.footer-grid p,.footer-grid a{color:#aab3a8;font-size:13px}.footer-grid a{display:block;margin:8px 0}.footer-grid a:hover{color:var(--lime)}
.footer-title{font-size:13px;color:white;font-weight:800;margin-bottom:13px}
.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#899389;font-size:12px}
@media(max-width:900px){
 .nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.logo{min-width:auto}
 .hero-grid,.app-grid,.news-layout,.faq-wrap{grid-template-columns:1fr;gap:35px}
 .hero{padding-top:55px}.app-visual{margin-top:10px}.steps{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr}.index-grid{grid-template-columns:1fr 1fr}.index-card:first-child{grid-column:span 2}
}
@media(max-width:680px){
 .site-header{height:68px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 20px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
 .nav.open{display:flex}.nav a{padding:13px 10px}.nav-action{margin:4px 0 0!important;text-align:center}
 .container{width:min(100% - 28px,var(--max))}.logo-text{font-size:13px}.logo-mark{width:30px;height:30px}
 h1{font-size:39px;letter-spacing:-1.5px}.hero-copy{font-size:16px}.section{padding:58px 0}.section-head{display:block}
 .entry-layout,.index-grid{grid-template-columns:1fr}.index-card:first-child{grid-column:auto}.entry-feature{min-height:220px}
 .news-item{grid-template-columns:1fr;gap:6px}.read-link{margin-top:5px}.steps{grid-template-columns:1fr}.app-visual{gap:8px}.device{width:145px}.device.tall{width:165px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:8px}
}
@media(max-width:420px){
 .actions .btn{width:100%}.hero-panel{padding:16px}.panel-main h2{font-size:23px}.app-visual{transform:scale(.9);margin-left:-15px;margin-right:-15px}
 .footer-grid{grid-template-columns:1fr}.section-head h2{font-size:30px}
}

/* roulang page: article */
:root{
      --lime:#c7f34a;--lime-dark:#9fc52c;--purple:#633f91;--purple-deep:#30213f;
      --orange:#f39a4b;--ink:#202221;--muted:#707673;--paper:#f4f2ec;
      --white:#fff;--line:#deded5;--dark:#202420;--radius:18px;
      --shadow:0 14px 34px rgba(31,35,30,.09);--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(244,242,236,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900}
    .logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
    .nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
    .menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .article-hero{padding:66px 0 52px;border-bottom:1px solid var(--line)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:26px}
    .crumbs a{color:var(--purple);font-weight:700}
    .crumbs span{margin:0 8px;color:#a3a8a3}
    .article-head{max-width:900px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
    h1{font-size:clamp(34px,5vw,64px);line-height:1.16;letter-spacing:-1.8px;margin:17px 0 20px;max-width:900px}
    .article-summary{font-size:18px;color:var(--muted);max-width:790px;margin:0 0 22px}
    .meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;color:var(--muted);font-size:13px}
    .tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:4px 10px;border-radius:5px}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:66px;align-items:start;padding:66px 0 86px}
    .article-content{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:clamp(25px,5vw,56px);box-shadow:var(--shadow);overflow:hidden}
    .article-content h2{font-size:30px;line-height:1.3;margin:34px 0 15px;color:var(--purple-deep)}
    .article-content h3{font-size:22px;line-height:1.4;margin:28px 0 12px}
    .article-content p{font-size:16px;color:#444a46;margin:0 0 20px;line-height:1.95}
    .article-content ul,.article-content ol{padding-left:24px;margin:18px 0 25px;color:#444a46}
    .article-content li{margin:9px 0;padding-left:4px}
    .article-content blockquote{margin:28px 0;padding:20px 24px;border-left:5px solid var(--lime);background:#f7f8ef;color:#4c534b;border-radius:0 12px 12px 0}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:12px;text-align:left}
    .article-content th{background:#f3f1e9;color:var(--purple-deep)}
    .article-content img{border-radius:14px;margin:25px auto}
    .article-content figcaption{text-align:center;color:var(--muted);font-size:13px}
    .notice{margin-top:35px;padding:19px 21px;background:#fff7e9;border:1px solid #f2d09f;border-radius:12px;color:#6b5437;font-size:14px}
    .side-card{position:sticky;top:105px;background:var(--dark);color:white;border-radius:18px;padding:23px}
    .side-card h2{font-size:18px;margin:0 0 17px;color:var(--lime)}
    .side-card a{display:block;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.13);font-size:13px;color:#dce2d9;transition:.2s}
    .side-card a:hover{color:var(--lime);padding-left:4px}
    .side-note{margin-top:25px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);font-size:12px;color:#abb5aa}
    .after-article{padding:0 0 82px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .related-card{background:white;border:1px solid var(--line);border-radius:14px;padding:23px;min-height:150px;transition:.2s}
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .related-card h3{font-size:19px;line-height:1.4;margin:13px 0 8px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .cta{background:var(--purple);color:white;border-radius:22px;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:25px;margin-top:55px}
    .cta h2{font-size:30px;line-height:1.25;margin:0 0 8px}
    .cta p{margin:0;color:#ded5e8;font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:10px;font-weight:800;font-size:14px;transition:.2s;outline:none}
    .btn:hover{transform:translateY(-3px);box-shadow:0 8px 16px rgba(0,0,0,.12)}
    .btn:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-dark{background:var(--dark);color:white}
    .compliance{border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:13px}
    .site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px}
    .footer-brand{font-size:18px;font-weight:900;color:var(--lime);margin-bottom:12px}
    .site-footer p{color:#abb5aa;font-size:13px;margin:0;line-height:1.8}
    .footer-title{font-weight:800;color:white;margin-bottom:12px}
    .site-footer a{display:block;color:#abb5aa;font-size:13px;margin:7px 0;transition:.2s}
    .site-footer a:hover{color:var(--lime)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:20px;color:#89948a;font-size:12px}
    .empty-state{text-align:center;padding:60px 20px;background:#fafaf7;border:1px dashed #cfd4c7;border-radius:14px;color:var(--muted)}
    .empty-state strong{display:block;color:var(--ink);font-size:20px;margin-bottom:8px}
    @media(max-width:1024px){
      .nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.logo{min-width:210px}
      .article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:32px}
    }
    @media(max-width:768px){
      .site-header{height:68px}.container{width:min(var(--max),calc(100% - 30px))}
      .nav-wrap{gap:12px}.logo{min-width:0}.logo-text{font-size:14px}.logo-text small{font-size:9px}
      .menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 15px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav.open{display:flex}.nav a{padding:13px 15px}.nav-action{margin:5px 0 0!important;text-align:center}
      .article-hero{padding:44px 0 38px}h1{font-size:38px;letter-spacing:-1px}
      .article-layout{display:flex;flex-direction:column;padding:42px 0 55px}.side-card{position:static;order:-1;width:100%}
      .related-grid{grid-template-columns:1fr}.cta{padding:30px 25px;display:block}.cta .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
    }
    @media(max-width:480px){
      .article-summary{font-size:16px}.article-content{padding:22px 18px}.article-content h2{font-size:25px}
      .meta-row{gap:8px 13px}.footer-grid{grid-template-columns:1fr}.btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --lime:#c7f34a;--lime-dark:#9fc52c;--purple:#633f91;--purple-deep:#30213f;
      --orange:#f39a4b;--ink:#202221;--muted:#707673;--paper:#f4f2ec;
      --white:#fff;--line:#deded5;--dark:#202420;--radius:18px;
      --shadow:0 14px 34px rgba(31,35,30,.09);--max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(244,242,236,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900;letter-spacing:-.5px}
    .logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
    .nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
    .menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .page-hero{padding:78px 0 58px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .page-hero:after{content:"NEWS";position:absolute;right:-12px;bottom:-54px;color:rgba(99,63,145,.08);font-size:150px;font-weight:950;letter-spacing:-8px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-2.5px;max-width:850px;margin:18px 0}
    .hero-copy{color:var(--muted);font-size:18px;max-width:720px}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:4px 10px;border-radius:5px}
    .tag.orange{background:#fff0df;color:#a95e19}
    .meta-box{border-left:3px solid var(--orange);padding-left:13px;color:var(--muted);font-size:13px}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-1px;margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:480px;margin-bottom:3px}
    .feature-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .feature-card{background:var(--purple);color:#fff;border-radius:24px;padding:36px;min-height:365px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .feature-card:after{content:"01";position:absolute;right:22px;bottom:-28px;font-size:180px;font-weight:900;color:rgba(255,255,255,.09)}
    .feature-card h3{font-size:32px;line-height:1.25;max-width:520px;margin:22px 0 14px;position:relative;z-index:1}
    .feature-card p{color:#e9e1f1;max-width:520px;position:relative;z-index:1}
    .feature-card .read-link{display:inline-flex;margin-top:25px;color:var(--lime);font-weight:800;position:relative;z-index:1}
    .side-stories{display:grid;gap:18px}
    .story-mini{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px;transition:.2s}
    .story-mini:hover,.timeline-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .story-mini h3{font-size:20px;line-height:1.35;margin:14px 0 7px}
    .story-mini p{font-size:13px;color:var(--muted);margin-bottom:12px}
    .story-time{font-size:12px;color:var(--orange);font-weight:800}
    .timeline-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:62px;align-items:start}
    .topic-panel{background:var(--dark);color:#fff;border-radius:22px;padding:29px;position:sticky;top:105px}
    .topic-panel h3{font-size:26px;line-height:1.3;margin:14px 0}
    .topic-panel p{color:#bac2b9;font-size:14px}
    .topic-list{list-style:none;padding:0;margin:25px 0 0;display:grid;gap:10px}
    .topic-list li a{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid #444a43;border-radius:9px;color:#dfe6dc;font-size:14px;transition:.2s}
    .topic-list li a:hover{background:var(--lime);color:var(--ink);border-color:var(--lime)}
    .timeline{position:relative;padding-left:27px;border-left:2px solid #d7dccd}
    .timeline-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:24px 26px;margin-bottom:16px;position:relative;transition:.2s}
    .timeline-item:before{content:"";position:absolute;width:12px;height:12px;background:var(--lime);border:3px solid var(--paper);border-radius:50%;left:-34px;top:30px}
    .timeline-top{display:flex;justify-content:space-between;gap:15px;align-items:center}
    .timeline-item h3{font-size:20px;line-height:1.35;margin:12px 0 7px}
    .timeline-item p{font-size:14px;color:var(--muted);margin-bottom:12px}
    .timeline-item time{font-size:12px;color:var(--orange);font-weight:800}
    .link-arrow{font-weight:900;color:var(--purple);white-space:nowrap}
    .dark-band{background:var(--dark);color:#fff}
    .dark-band .section-kicker{color:var(--lime)}
    .update-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
    .update-card{padding:26px;background:#2b302b;border-radius:14px;border-top:4px solid var(--lime)}
    .update-card:nth-child(2){border-color:var(--orange)}
    .update-card:nth-child(3){border-color:var(--purple)}
    .update-card h3{font-size:21px;margin:14px 0 8px}
    .update-card p{color:#bbc2b9;font-size:14px;margin-bottom:0}
    .guide-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .guide-step{padding:25px 22px;border-right:1px solid var(--line);position:relative}
    .guide-step:last-child{border-right:0}
    .guide-step strong{font-size:34px;color:var(--purple);display:block;line-height:1}
    .guide-step h3{font-size:17px;margin:14px 0 5px}
    .guide-step p{font-size:13px;color:var(--muted);margin-bottom:0}
    .faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-wrap h2{font-size:37px;line-height:1.2}
    .faq-wrap>div>p{color:var(--muted);margin-top:15px}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:19px 0}
    .faq summary{cursor:pointer;font-weight:800;list-style:none;padding-right:25px;position:relative}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";position:absolute;right:2px;color:var(--purple);font-size:22px;top:-4px}
    .faq details[open] summary:after{content:"−"}
    .faq details p{font-size:14px;color:var(--muted);padding:12px 25px 0 0;margin-bottom:0}
    .notice{padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#faf9f5}
    .notice-inner{display:flex;align-items:center;gap:18px}
    .notice-mark{width:40px;height:40px;background:var(--lime);border-radius:10px;display:grid;place-items:center;font-weight:900}
    .notice p{font-size:13px;color:var(--muted);margin:0}
    .site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px}
    .footer-brand{font-weight:900;font-size:18px;color:var(--lime);margin-bottom:12px}
    .site-footer p{color:#aeb8ad;font-size:13px}
    .footer-title{font-size:13px;font-weight:900;color:var(--lime);margin-bottom:13px}
    .site-footer a{display:block;color:#cbd3c9;font-size:13px;margin:7px 0;transition:.2s}
    .site-footer a:hover{color:var(--lime)}
    .copyright{border-top:1px solid #414740;margin-top:35px;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#89938a;font-size:12px}
    @media(max-width:1024px){
      .nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.logo{min-width:205px}
      .feature-layout,.timeline-layout{grid-template-columns:1fr}.topic-panel{position:static}
      .update-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .site-header{height:68px}.nav-wrap{gap:12px}.logo{min-width:0}.logo-text{font-size:14px}.logo-text small{font-size:9px}
      .menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:15px;right:15px;background:var(--white);border:1px solid var(--line);padding:10px;border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px}.nav-action{margin:5px 0 0!important;text-align:center}
      .page-hero{padding:55px 0 40px}h1{letter-spacing:-1.5px}.hero-copy{font-size:16px}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .guide-strip{grid-template-columns:1fr 1fr}.guide-step:nth-child(2){border-right:0}.guide-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .faq-wrap{grid-template-columns:1fr;gap:28px}.faq-wrap h2{font-size:31px}
    }
    @media(max-width:520px){
      .feature-card{padding:25px;min-height:330px}.feature-card h3{font-size:25px}
      .update-grid,.guide-strip,.footer-grid{grid-template-columns:1fr}.guide-step{border-right:0!important;border-bottom:1px solid var(--line)}
      .guide-step:last-child{border-bottom:0}.timeline-item{padding:20px}.timeline-top{display:block}
      .link-arrow{display:inline-block;margin-top:8px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
      .notice-inner{align-items:flex-start}.page-hero:after{font-size:90px}
    }
    @media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
      --lime:#c7f34a;
      --lime-dark:#9fc52c;
      --purple:#633f91;
      --purple-deep:#30213f;
      --orange:#f39a4b;
      --ink:#202221;
      --muted:#707673;
      --paper:#f4f2ec;
      --white:#fff;
      --line:#deded5;
      --dark:#202420;
      --radius:18px;
      --shadow:0 14px 34px rgba(31,35,30,.09);
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(244,242,236,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900;letter-spacing:-.5px}
    .logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
    .nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
    .menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .page-hero{padding:75px 0 62px;background:var(--paper);position:relative;overflow:hidden}
    .page-hero:after{content:"GUIDE";position:absolute;right:-18px;bottom:-45px;font-size:150px;font-weight:900;color:rgba(99,63,145,.07);letter-spacing:-8px}
    .hero-inner{max-width:820px;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
    h1{font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-2px;margin:18px 0 20px;font-weight:900}
    .lead{font-size:18px;color:var(--muted);max-width:720px;margin:0}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:5px 10px;border-radius:5px}
    .tag.orange{background:#fff0df;color:#a85b16}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-head h2{font-size:clamp(28px,3vw,42px);line-height:1.2;margin:9px 0 0;letter-spacing:-1px}
    .section-head p{color:var(--muted);max-width:470px;margin:0}
    .guide-layout{display:grid;grid-template-columns:280px 1fr;gap:58px;align-items:start}
    .chapter-nav{background:var(--dark);color:white;border-radius:18px;padding:22px;position:sticky;top:104px}
    .chapter-nav h3{font-size:17px;margin:0 0 14px;color:var(--lime)}
    .chapter-nav a{display:flex;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:14px;color:#d9dfd6;transition:.2s}
    .chapter-nav a:last-child{border-bottom:0}
    .chapter-nav a:hover,.chapter-nav a.active{color:var(--lime);padding-left:5px}
    .chapter-nav span{color:#929b91;font-size:12px}
    .guide-list{display:grid;gap:14px}
    .guide-item{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px 26px;display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:start;transition:.22s}
    .guide-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c7d696}
    .guide-number{width:42px;height:42px;background:var(--lime);border-radius:11px;display:grid;place-items:center;font-weight:900}
    .guide-item h3{font-size:20px;line-height:1.35;margin:0 0 7px}
    .guide-item p{font-size:14px;color:var(--muted);margin:0}
    .guide-info{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
    .read-link{color:var(--purple);font-size:13px;font-weight:900;white-space:nowrap;padding-top:7px}
    .read-link:hover{color:var(--orange)}
    .notice-band{background:#fff9ee;border:1px solid #f0d8b8;border-left:6px solid var(--orange);border-radius:12px;padding:18px 22px;display:flex;gap:15px;align-items:flex-start}
    .notice-band strong{display:block;margin-bottom:3px}
    .notice-band p{margin:0;color:#6b6258;font-size:14px}
    .feature-section{background:var(--dark);color:white}
    .feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .feature-box{border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:30px;background:#292e29}
    .feature-box.accent{background:var(--purple)}
    .feature-box h3{font-size:24px;margin:15px 0 10px}
    .feature-box p{color:#c0c8bd;font-size:14px;margin:0}
    .feature-box.accent p{color:#eee7f6}
    .mini-label{font-size:11px;font-weight:900;letter-spacing:1.2px;color:var(--lime)}
    .faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
    .faq-wrap h2{font-size:38px;line-height:1.2;margin:8px 0 14px}
    .faq-wrap>div>p{color:var(--muted);margin:0}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:19px 0}
    .faq summary{cursor:pointer;list-style:none;font-weight:800;font-size:16px;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--purple);font-size:22px;line-height:1}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;margin:12px 35px 0 0}
    .cta{background:var(--lime);border-radius:22px;padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:32px;line-height:1.2;margin:0 0 8px}
    .cta p{margin:0;color:#4d583a;font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:10px;font-weight:800;font-size:14px;transition:.2s;outline:none}
    .btn:hover{transform:translateY(-3px);box-shadow:0 8px 16px rgba(0,0,0,.12)}
    .btn:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .btn-dark{background:var(--dark);color:var(--white)}
    .btn-light{background:var(--white);border:1px solid var(--line)}
    .site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px}
    .footer-brand{font-size:20px;font-weight:900;color:var(--lime);margin-bottom:13px}
    .site-footer p{color:#aeb7aa;font-size:13px;margin:0;line-height:1.8}
    .footer-title{font-size:13px;font-weight:900;color:var(--lime);margin-bottom:14px}
    .site-footer a{display:block;color:#cbd2c8;font-size:13px;margin:8px 0;transition:.2s}
    .site-footer a:hover{color:var(--lime)}
    .copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#8f998d;font-size:12px}
    @media(max-width:1024px){
      .nav-wrap{gap:12px}.logo{min-width:210px}.nav a{padding:8px 8px;font-size:13px}
      .guide-layout{gap:30px}.faq-wrap{gap:35px}
    }
    @media(max-width:768px){
      .site-header{height:70px}.nav{display:none;position:absolute;top:70px;left:20px;right:20px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.nav-action{margin:5px 0 0!important;text-align:center}
      .menu-toggle{display:block}.page-hero{padding:55px 0 45px}h1{letter-spacing:-1px}
      .guide-layout,.faq-wrap,.feature-grid{grid-template-columns:1fr}.chapter-nav{position:static}
      .guide-item{grid-template-columns:45px 1fr}.read-link{grid-column:2;padding-top:0}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .cta{display:block;padding:30px}.cta .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(max-width:480px){
      .container{width:min(var(--max),calc(100% - 28px))}
      .logo-text{font-size:14px}.logo-text small{font-size:9px}
      h1{font-size:39px}.lead{font-size:16px}.page-hero:after{font-size:88px}
      .guide-item{padding:20px 17px}.guide-item h3{font-size:17px}.feature-box{padding:23px}
      .footer-grid{grid-template-columns:1fr}.copyright{font-size:11px}
    }

/* roulang page: category3 */
:root{
      --lime:#c7f34a;
      --lime-dark:#9fc52c;
      --purple:#633f91;
      --purple-deep:#30213f;
      --orange:#f39a4b;
      --ink:#202221;
      --muted:#707673;
      --paper:#f4f2ec;
      --white:#fff;
      --line:#deded5;
      --dark:#202420;
      --dark-soft:#2b302b;
      --radius:18px;
      --shadow:0 14px 34px rgba(31,35,30,.09);
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{
      height:78px;background:rgba(244,242,236,.95);border-bottom:1px solid var(--line);
      position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)
    }
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900;letter-spacing:-.5px}
    .logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
    .nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
    .menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .page-hero{padding:72px 0 62px;background:var(--dark);color:var(--white);position:relative;overflow:hidden}
    .page-hero:after{content:"APP";position:absolute;right:5%;bottom:-65px;color:rgba(199,243,74,.08);font-size:170px;font-weight:950;letter-spacing:-8px}
    .page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
    .page-hero .eyebrow{color:var(--lime)}
    h1,h2,h3{letter-spacing:-.8px}
    h1{font-size:clamp(36px,5vw,68px);line-height:1.1;margin:16px 0 20px;max-width:720px}
    .hero-copy{font-size:17px;color:#c1c8bf;max-width:650px;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:10px;font-weight:800;font-size:14px;transition:.2s;outline:none}
    .btn:hover{transform:translateY(-3px);box-shadow:0 8px 16px rgba(0,0,0,.12)}
    .btn:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-dark{background:var(--dark);color:var(--white)}
    .btn-light{background:var(--white);border:1px solid var(--line)}
    .app-preview{display:grid;grid-template-columns:145px 1fr;gap:16px;align-items:end}
    .phone{background:#111511;border:7px solid #383d37;border-radius:28px;padding:13px 10px;min-height:285px;box-shadow:0 18px 26px rgba(0,0,0,.25)}
    .phone-top{height:9px;width:48px;background:#596257;border-radius:8px;margin:0 auto 22px}
    .phone-brand{color:var(--lime);font-weight:900;font-size:12px;margin-bottom:20px}
    .phone-chip{background:var(--lime);color:var(--ink);font-weight:800;font-size:10px;padding:8px;border-radius:6px;margin-bottom:8px}
    .phone-line{height:35px;background:#292e29;border-left:3px solid var(--purple);border-radius:5px;margin:7px 0}
    .app-side{background:#fff;border-radius:14px;padding:19px;color:var(--ink);box-shadow:var(--shadow)}
    .app-side strong{font-size:18px;display:block;margin-bottom:12px}
    .app-side p{font-size:12px;color:var(--muted);margin:0 0 16px}
    .mini-row{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:10px 0;font-size:12px}
    .mini-row b{color:var(--purple)}
    .notice{padding:16px 0;background:#eef1df;border-bottom:1px solid #dbe0c5}
    .notice-inner{display:flex;gap:12px;align-items:center;font-size:13px;color:#505744}
    .notice-mark{width:24px;height:24px;display:grid;place-items:center;background:var(--lime);border-radius:50%;font-weight:900;flex:0 0 auto}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-head h2{font-size:clamp(28px,3vw,43px);line-height:1.2;margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .overview-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .overview-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:31px;box-shadow:var(--shadow)}
    .overview-card.dark{background:var(--dark);color:var(--white);border-color:var(--dark)}
    .overview-card h3{font-size:25px;margin:12px 0 10px}
    .overview-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .overview-card.dark p{color:#b9c0b8}
    .tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:4px 9px;border-radius:5px}
    .tag.orange{background:#fff0e2;color:#a75c1c}
    .feature-list{list-style:none;padding:0;margin:23px 0 0;display:grid;gap:12px}
    .feature-list li{display:flex;gap:11px;align-items:flex-start;font-size:14px}
    .feature-list li:before{content:"✓";color:var(--purple);font-weight:900}
    .dark .feature-list li:before{color:var(--lime)}
    .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .device-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:23px;transition:.2s}
    .device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .device-icon{width:38px;height:38px;border-radius:10px;background:var(--lime);display:grid;place-items:center;font-weight:900;margin-bottom:17px}
    .device-card h3{font-size:18px;margin:0 0 7px}
    .device-card p{font-size:13px;color:var(--muted);margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:26px 22px 15px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-number{font-size:13px;font-weight:900;color:var(--purple);display:block;margin-bottom:18px}
    .step h3{font-size:18px;margin:0 0 9px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .update-panel{background:var(--purple-deep);color:var(--white);border-radius:22px;padding:35px;display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}
    .update-panel h2{font-size:32px;line-height:1.2;margin:12px 0}
    .update-panel p{color:#d3cadd;font-size:14px}
    .version-list{border-left:2px solid var(--lime);padding-left:23px;display:grid;gap:18px}
    .version-item{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid rgba(255,255,255,.16);padding-bottom:13px}
    .version-item:last-child{border-bottom:0;padding-bottom:0}
    .version-item span{font-size:13px;color:#d9d3e0}
    .version-item b{font-size:13px;color:var(--lime)}
    .faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-wrap h2{font-size:37px;line-height:1.2;margin-top:10px}
    .faq-wrap>div>p{color:var(--muted);margin-top:15px}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:20px 0}
    .faq summary{cursor:pointer;font-weight:800;list-style:none;padding-right:28px;position:relative}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";position:absolute;right:0;color:var(--purple);font-size:22px;top:-5px}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;margin:12px 0 0;max-width:700px}
    .cta{background:var(--lime);padding:39px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:32px;margin:0 0 6px}
    .cta p{margin:0;color:#4f5d32;font-size:14px}
    .site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px}
    .footer-brand{font-weight:900;font-size:18px;color:var(--lime);margin-bottom:13px}
    .footer-grid p{font-size:13px;color:#aeb6ad;margin:0;line-height:1.8}
    .footer-title{font-size:13px;color:var(--lime);font-weight:900;margin-bottom:13px}
    .footer-grid a{display:block;color:#c7cec4;font-size:13px;margin:7px 0;transition:.2s}
    .footer-grid a:hover{color:var(--lime)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #3a4039;margin-top:40px;padding-top:20px;color:#889188;font-size:12px}
    @media(max-width:1024px){
      .nav-wrap{gap:12px}.logo{min-width:205px}.nav a{padding:8px 8px;font-size:13px}
      .page-hero-grid{gap:35px}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .site-header{height:68px}.container{width:min(var(--max),calc(100% - 30px))}
      .nav-wrap{position:relative}.menu-toggle{display:block}
      .nav{display:none;position:absolute;left:0;right:0;top:58px;background:var(--paper);padding:12px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.nav-action{margin-left:0!important;text-align:center}
      .page-hero{padding:54px 0 48px}.page-hero-grid,.overview-grid,.update-panel,.faq-wrap{grid-template-columns:1fr;gap:30px}
      h1{font-size:43px}.app-preview{max-width:520px}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}
      .device-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr;border-top:0}
      .step{border-right:0;border-bottom:1px solid var(--line);padding-left:0}
      .step:last-child{border-bottom:0}.cta-inner{display:block}.cta .btn{margin-top:20px}
    }
    @media(max-width:520px){
      .logo{min-width:0}.logo-text{font-size:13px}.logo-text small{font-size:9px}
      .logo-mark{width:30px;height:30px;font-size:13px}.page-hero{padding-top:42px}
      h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
      .app-preview{grid-template-columns:115px 1fr;gap:10px}.phone{min-height:245px;padding:9px 7px}
      .app-side{padding:14px}.section-head h2{font-size:30px}.overview-card{padding:23px}
      .update-panel{padding:24px}.update-panel h2{font-size:27px}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}.notice-inner{align-items:flex-start}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category4 */
:root{
      --lime:#c7f34a;--lime-dark:#9fc52c;--purple:#633f91;--purple-deep:#30213f;
      --orange:#f39a4b;--ink:#202221;--muted:#707673;--paper:#f4f2ec;--white:#fff;
      --line:#deded5;--dark:#202420;--radius:18px;--shadow:0 14px 34px rgba(31,35,30,.09);--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(244,242,236,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:240px;font-weight:900}
    .logo-mark{width:34px;height:34px;background:var(--lime);border-radius:10px 4px 10px 4px;display:grid;place-items:center;font-size:15px}
    .logo-text{font-size:16px;line-height:1.25}
    .logo-text small{display:block;color:var(--purple);font-size:11px;font-weight:700;letter-spacing:1px}
    .nav{display:flex;align-items:center;gap:4px}
    .nav a{padding:9px 13px;border-radius:8px;color:#505652;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink);background:var(--lime)}
    .nav .nav-action{background:var(--dark)!important;color:var(--lime)!important;font-weight:800!important;margin-left:10px}
    .menu-toggle{display:none;background:var(--dark);color:var(--lime);width:42px;height:42px;border-radius:9px}
    .hero{padding:78px 0 58px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:460px;height:460px;border:1px solid #d7dcc8;border-radius:50%;right:-180px;top:-160px}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:72px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:26px;height:4px;background:var(--lime);border-radius:3px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5.2vw,68px);line-height:1.1;letter-spacing:-2px;margin:16px 0 20px;max-width:700px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:10px;font-weight:800;font-size:14px;transition:.2s;outline:none}
    .btn:hover{transform:translateY(-3px);box-shadow:0 8px 16px rgba(0,0,0,.12)}
    .btn:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-dark{background:var(--dark);color:var(--white)}
    .btn-light{background:var(--white);border:1px solid var(--line)}
    .hero-art{background:var(--dark);border-radius:26px;padding:24px;color:white;box-shadow:var(--shadow);transform:rotate(1deg)}
    .art-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #414740;padding-bottom:17px}
    .art-brand{color:var(--lime);font-weight:900}
    .art-status{font-size:11px;color:#c2c9bd}
    .art-title{padding:28px 4px 18px}
    .art-title strong{display:block;color:white;font-size:27px;line-height:1.25;margin-bottom:8px}
    .art-title span{color:#b9c0b8;font-size:13px}
    .topic-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
    .topic-row span{font-size:11px;padding:6px 9px;background:#343a34;border-radius:6px;color:#e9efe3}
    .topic-row span:first-child{background:var(--lime);color:var(--ink)}
    .art-item{display:flex;justify-content:space-between;align-items:center;background:#2b302b;border-radius:8px;padding:12px;margin-top:8px;font-size:12px}
    .art-item b{color:var(--orange)}
    .notice{border:1px solid #d6dcc6;background:#eef2df;border-radius:10px;padding:13px 16px;font-size:13px;color:#59614e}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:clamp(29px,3.6vw,45px);line-height:1.18;margin:10px 0 0;letter-spacing:-1px}
    .section-head p{max-width:480px;color:var(--muted);margin-bottom:0}
    .topic-index{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
    .focus-card,.side-card{border-radius:var(--radius);padding:30px;position:relative;overflow:hidden;transition:.25s}
    .focus-card:hover,.side-card:hover,.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .focus-card{background:var(--purple);color:#fff;min-height:275px}
    .focus-card:after{content:"游戏";position:absolute;right:-12px;bottom:-30px;font-size:110px;font-weight:900;color:rgba(255,255,255,.08)}
    .focus-card h3{font-size:30px;line-height:1.25;margin:18px 0 12px;position:relative;z-index:1}
    .focus-card p,.side-card p{font-size:14px;opacity:.8;max-width:460px}
    .side-stack{display:grid;gap:16px}
    .side-card{background:#fff;border:1px solid var(--line);min-height:130px}
    .side-card.orange{background:#fff0e2;border-color:#f5d2ae}
    .side-card h3{font-size:21px;margin:12px 0 6px}
    .tag{display:inline-block;background:#eee9f5;color:var(--purple);font-size:11px;font-weight:800;padding:4px 9px;border-radius:5px}
    .tag.orange{background:#ffe0bf;color:#9b571e}
    .content-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}
    .content-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;transition:.25s}
    .content-card.large{background:#f0ebf6;border-color:#ded0ed;min-height:300px}
    .content-card h3{font-size:25px;line-height:1.3;margin:18px 0 12px}
    .content-card p{font-size:14px;color:var(--muted)}
    .content-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}
    .content-meta time{color:var(--orange);font-weight:800}
    .content-list{border-top:1px solid var(--line)}
    .content-row{display:grid;grid-template-columns:105px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .content-row h3{font-size:17px;margin:0 0 4px;transition:.2s}
    .content-row:hover h3{color:var(--purple)}
    .content-row p{font-size:13px;color:var(--muted);margin:0}
    .content-row time{font-size:12px;color:var(--orange);font-weight:800}
    .arrow{font-size:22px;color:var(--purple)}
    .dark-section{background:var(--dark);color:#fff}
    .dark-section .section-kicker{color:var(--lime)}
    .feature-band{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .band-item{padding:25px;border:1px solid #414740;border-radius:14px;background:#292e29}
    .band-number{color:var(--lime);font-size:13px;font-weight:900}
    .band-item h3{font-size:20px;margin:12px 0 8px}
    .band-item p{color:#b9c0b8;font-size:14px;margin-bottom:0}
    .guide-path{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--lime);margin-top:15px}
    .guide-step{padding:23px 22px 10px;border-right:1px solid var(--line);position:relative}
    .guide-step:last-child{border-right:0}
    .guide-step:before{content:"";width:12px;height:12px;background:var(--lime);border:3px solid var(--paper);border-radius:50%;position:absolute;top:-8px;left:22px}
    .guide-step b{display:block;color:var(--purple);font-size:12px;margin-bottom:12px}
    .guide-step h3{font-size:18px;margin-bottom:8px}
    .guide-step p{font-size:13px;color:var(--muted);margin:0}
    .faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
    .faq-wrap h2{font-size:38px;line-height:1.2}
    .faq-wrap>div>p{color:var(--muted)}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:18px 0}
    .faq summary{cursor:pointer;font-weight:800;list-style:none;padding-right:28px;position:relative}
    .faq summary:after{content:"+";position:absolute;right:0;color:var(--purple);font-size:22px;top:-4px}
    .faq details[open] summary:after{content:"−"}
    .faq details p{font-size:14px;color:var(--muted);margin:12px 28px 0 0}
    .cta{background:var(--lime);border-radius:22px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:30px;line-height:1.2;margin:0 0 8px}
    .cta p{margin:0;color:#536128}
    .cta .btn-dark:hover{background:#343b34}
    .site-footer{background:var(--dark);color:#e7ece4;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr 1fr;gap:35px}
    .footer-brand{font-size:19px;font-weight:900;color:var(--lime);margin-bottom:12px}
    .footer-grid p{font-size:13px;color:#aeb7ac;margin:0;max-width:300px}
    .footer-title{font-weight:800;margin-bottom:13px}
    .footer-grid a{display:block;color:#bfc8bc;font-size:13px;margin:7px 0;transition:.2s}
    .footer-grid a:hover{color:var(--lime)}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #414740;margin-top:38px;padding-top:20px;color:#8e988d;font-size:12px}
    @media(max-width:1024px){
      .nav a{padding:8px 8px;font-size:13px}.logo{min-width:210px}
      .hero-grid,.content-layout,.faq-wrap{gap:35px}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .site-header{height:68px}.container{width:min(var(--max),calc(100% - 30px))}
      .nav-wrap{position:relative}.menu-toggle{display:block}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border:1px solid var(--line);padding:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-action{margin:5px 0 0;text-align:center}
      .hero{padding:55px 0 38px}.hero-grid,.content-layout,.faq-wrap{grid-template-columns:1fr}
      h1{font-size:clamp(36px,11vw,54px)}.hero-art{max-width:620px;margin:auto}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:16px}
      .topic-index{grid-template-columns:1fr}.feature-band,.guide-path{grid-template-columns:1fr}
      .guide-path{border-top:0;border-left:2px solid var(--lime);margin-left:8px}
      .guide-step{border-right:0;border-bottom:1px solid var(--line);padding:18px 18px 22px 28px}
      .guide-step:before{left:-8px;top:23px}.guide-step:last-child{border-bottom:0}
      .content-row{grid-template-columns:78px 1fr auto;gap:12px}.cta{display:block;padding:30px 25px}.cta .btn{margin-top:20px}
    }
    @media(max-width:520px){
      .logo{min-width:0}.logo-text{font-size:13px}.logo-text small{font-size:9px}
      .hero-actions .btn{width:100%}.hero-art{padding:17px}.art-title strong{font-size:23px}
      .content-row{grid-template-columns:1fr;gap:6px}.content-row .arrow{display:none}
      .content-card h3{font-size:22px}.footer-grid{grid-template-columns:1fr;gap:25px}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}