/* roulang page: index */
:root{
  --bg:#171a1c;
  --bg-deep:#101214;
  --panel:#202528;
  --panel-2:#252c2f;
  --line:#374144;
  --text:#f4f7f2;
  --muted:#aab5b3;
  --soft:#74817f;
  --cyan:#b8f34a;
  --cyan-dark:#8bbd28;
  --orange:#ff704d;
  --purple:#a978ff;
  --radius:18px;
  --radius-sm:11px;
  --shadow:0 18px 45px rgba(0,0,0,.22);
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.92);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:215px}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
.brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
.brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
.nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}
.nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
.nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}
.nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}
.hero{position:relative;overflow:hidden;padding:94px 0 76px;background:var(--bg-deep)}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 70%)}
.hero:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(184,243,74,.22);border-radius:50%;right:8%;top:-140px;box-shadow:0 0 0 28px rgba(184,243,74,.035),0 0 0 58px rgba(184,243,74,.025)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:78px;align-items:center}
.eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase}
.hero h1{font-size:clamp(34px,4.7vw,65px);line-height:1.12;letter-spacing:-2px;margin:18px 0 23px;max-width:720px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{color:var(--muted);font-size:17px;max-width:620px}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
.btn-primary{background:var(--cyan);color:#182019}
.btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
.btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
.btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
.hero-notes{display:flex;gap:26px;margin-top:34px;color:var(--soft);font-size:12px;flex-wrap:wrap}
.hero-notes b{color:var(--text);font-size:18px;margin-right:6px}
.arcade-panel{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}
.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--cyan);margin-right:7px}
.screen{margin:20px 0;background:#15191a;border-radius:15px;min-height:225px;padding:22px;position:relative;overflow:hidden}
.screen:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 5px,rgba(255,255,255,.025) 6px)}
.screen-title{font-size:28px;font-weight:900;max-width:230px;line-height:1.2}
.screen-title span{color:var(--orange)}
.screen-bars{display:flex;align-items:end;gap:8px;height:68px;margin-top:26px}
.screen-bars i{display:block;width:18%;background:var(--cyan);border-radius:3px 3px 0 0}
.screen-bars i:nth-child(1){height:35%}.screen-bars i:nth-child(2){height:62%;background:var(--purple)}.screen-bars i:nth-child(3){height:48%}.screen-bars i:nth-child(4){height:90%;background:var(--orange)}.screen-bars i:nth-child(5){height:72%}
.panel-bottom{display:flex;gap:10px}.mini-block{flex:1;background:#2a3133;border-radius:10px;padding:11px}.mini-block small{display:block;color:var(--soft);font-size:11px}.mini-block strong{font-size:16px}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section-head h2{font-size:32px;line-height:1.2;margin-top:9px}.section-head p{max-width:480px;color:var(--muted);font-size:14px}
.topic-layout{display:grid;grid-template-columns:1.4fr .85fr;gap:18px}.feature-topic{min-height:270px;border-radius:var(--radius);padding:31px;background:linear-gradient(135deg,#2d3838,#22282a);border:1px solid #465252;position:relative;overflow:hidden}.feature-topic:after{content:"C7";position:absolute;right:-12px;bottom:-48px;font-size:220px;font-weight:900;color:rgba(184,243,74,.08);line-height:1}.feature-topic h3{font-size:28px;max-width:390px;line-height:1.25;margin:14px 0}.feature-topic p{color:var(--muted);max-width:420px}.topic-side{display:grid;gap:18px}.topic-link{display:flex;justify-content:space-between;align-items:center;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s}.topic-link:hover{border-color:var(--cyan);transform:translateX(4px)}.topic-link span{color:var(--soft);font-size:12px}.topic-link strong{display:block;font-size:18px}.arrow{font-size:22px;color:var(--cyan)}
.news-section{background:#1b2022}.news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.news-feature,.news-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}.news-feature:hover,.news-item:hover{border-color:var(--cyan);box-shadow:0 12px 30px rgba(0,0,0,.18)}.news-feature{padding:30px}.news-feature .news-visual{height:155px;background:linear-gradient(135deg,#713f40,#302638);border-radius:13px;margin-bottom:24px;position:relative;overflow:hidden}.news-visual:before{content:"GAME / UPDATE";position:absolute;left:22px;bottom:20px;color:var(--cyan);font-size:12px;letter-spacing:2px;font-weight:900}.news-feature h3{font-size:24px;line-height:1.35;margin:12px 0}.news-feature p,.news-item p{color:var(--muted);font-size:14px}.meta{display:flex;gap:12px;align-items:center;color:var(--soft);font-size:12px}.tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}.news-list{display:grid;gap:12px}.news-item{padding:21px}.news-item h3{font-size:17px;line-height:1.4;margin:9px 0 6px}.news-item a{color:var(--text)}.empty-state{padding:30px;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius-sm);font-size:14px}
.download-section{padding:84px 0}.download-box{background:var(--cyan);color:#182019;border-radius:24px;padding:42px 48px;display:grid;grid-template-columns:1fr 290px;gap:45px;align-items:center;position:relative;overflow:hidden}.download-box:after{content:"C7 GAMES";position:absolute;right:-20px;bottom:-42px;font-size:88px;font-weight:900;color:rgba(24,32,25,.08)}.download-box h2{font-size:36px;line-height:1.2;margin:10px 0 14px}.download-box p{max-width:580px;color:#3e5725}.download-box .btn-primary{background:#182019;color:var(--cyan)}.download-box .btn-primary:hover{background:#2b3924}.device{width:155px;height:230px;border:7px solid #182019;border-radius:25px;margin:auto;position:relative;background:#303d25;box-shadow:16px 17px 0 rgba(24,32,25,.13)}.device:before{content:"C7";position:absolute;inset:42px 17px;background:var(--cyan);color:#182019;display:grid;place-items:center;font-size:36px;font-weight:900;border-radius:12px}.device:after{content:"扫码访问";position:absolute;bottom:17px;left:0;right:0;text-align:center;font-size:11px;font-weight:800}
.highlights{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.highlight{padding:24px;border-left:3px solid var(--orange);background:var(--panel);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.highlight:nth-child(2){border-color:var(--purple)}.highlight:nth-child(3){border-color:var(--cyan)}.highlight h3{font-size:18px;margin:13px 0 7px}.highlight p{font-size:14px;color:var(--muted)}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}.faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}.faq-wrap>div>p{color:var(--muted);font-size:14px}.faq-list{display:grid;gap:10px}.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px}.faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}.faq-item[open] summary:after{content:"−"}.faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px}
.cta{padding:0 0 88px}.cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:linear-gradient(100deg,#22292b,#1c2224)}.cta-box h2{font-size:27px}.cta-box p{color:var(--muted);font-size:14px;margin-top:5px}
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);padding:48px 0 24px}.footer-main{display:flex;justify-content:space-between;gap:40px;padding-bottom:38px}.footer-intro{max-width:340px}.footer-intro p{color:var(--soft);font-size:13px;margin-top:15px}.footer-links{display:flex;gap:55px}.footer-links h3{font-size:13px;margin-bottom:14px}.footer-links a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:.2s}.footer-links a:hover{color:var(--cyan)}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;justify-content:space-between;color:var(--soft);font-size:12px;gap:20px}
@media(max-width:1024px){.hero-grid{gap:35px}.nav-menu{gap:0}.nav-menu a{padding:9px 8px}.download-box{grid-template-columns:1fr 220px}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header,.nav-wrap{height:68px}.brand{min-width:0}.brand-copy strong{font-size:16px}.nav-menu{display:none;position:absolute;left:16px;right:16px;top:63px;background:#202628;border:1px solid var(--line);padding:10px;border-radius:12px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav-menu.open{display:flex}.nav-menu a{padding:12px}.menu-toggle{display:block}.hero{padding:65px 0 58px}.hero-grid,.news-layout,.topic-layout,.faq-wrap{grid-template-columns:1fr}.hero h1{letter-spacing:-1px}.arcade-panel{max-width:560px;transform:none;margin:0 auto}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:12px}.download-box{grid-template-columns:1fr;padding:30px}.device{display:none}.highlights{grid-template-columns:1fr}.cta-box{display:block;padding:28px}.cta-box .btn{margin-top:20px}.footer-main{display:block}.footer-links{margin-top:30px;gap:35px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
@media(max-width:520px){.hero h1{font-size:34px}.hero-lead{font-size:15px}.actions .btn{width:100%}.hero-notes{gap:14px}.screen{min-height:200px}.screen-title{font-size:23px}.feature-topic,.news-feature{padding:22px}.download-box h2{font-size:29px}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:15px}.brand-copy span{font-size:9px}}

/* roulang page: article */
:root{
      --bg:#171a1c;
      --bg-deep:#101214;
      --panel:#202528;
      --panel-2:#252c2f;
      --line:#374144;
      --text:#f4f7f2;
      --muted:#aab5b3;
      --soft:#74817f;
      --cyan:#b8f34a;
      --cyan-dark:#8bbd28;
      --orange:#ff704d;
      --purple:#a978ff;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 45px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--bg);
      color:var(--text);
      font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--cyan)}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;
      border-bottom:1px solid rgba(255,255,255,.08);
      background:rgba(23,26,28,.94);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(14px);
    }
    .nav-wrap{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}
    .brand-mark{
      width:38px;height:38px;border-radius:10px;
      background:var(--cyan);color:#172019;
      display:grid;place-items:center;font-weight:900;font-size:17px;
      box-shadow:4px 4px 0 rgba(255,112,77,.65);
    }
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
    .brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}
    .nav-menu a{
      color:var(--muted);font-size:14px;padding:10px 14px;
      border-radius:9px;transition:.25s;
    }
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{
      color:var(--text);background:#2b3335;
    }
    .nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-menu a.nav-download{
      background:var(--cyan)!important;color:#172019!important;font-weight:800!important;
    }
    .nav-menu a.nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{
      display:none;background:transparent;border:1px solid var(--line);
      color:var(--text);border-radius:9px;padding:7px 10px;
    }
    .article-hero{
      position:relative;
      overflow:hidden;
      padding:70px 0 62px;
      background:var(--bg-deep);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .article-hero:before{
      content:"";position:absolute;inset:0;pointer-events:none;
      background-image:linear-gradient(rgba(184,243,74,.045) 1px,transparent 1px),
      linear-gradient(90deg,rgba(184,243,74,.045) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to right,black,transparent 78%);
    }
    .article-hero:after{
      content:"C7";position:absolute;right:7%;bottom:-68px;
      color:rgba(184,243,74,.055);font-weight:900;font-size:260px;
      line-height:1;pointer-events:none;
    }
    .breadcrumb-line{
      position:relative;z-index:1;
      display:flex;align-items:center;gap:10px;
      color:var(--soft);font-size:13px;margin-bottom:27px;
    }
    .breadcrumb-line a{color:var(--muted)}
    .breadcrumb-line a:hover{color:var(--cyan)}
    .breadcrumb-line .slash{color:var(--line)}
    .article-hero h1{
      position:relative;z-index:1;
      max-width:900px;margin:0 0 23px;
      font-size:clamp(34px,5vw,62px);
      letter-spacing:-1.8px;line-height:1.18;
      overflow-wrap:anywhere;
    }
    .article-summary{
      position:relative;z-index:1;
      max-width:760px;color:var(--muted);
      font-size:17px;margin:0 0 28px;
    }
    .article-meta{
      position:relative;z-index:1;
      display:flex;align-items:center;gap:14px;flex-wrap:wrap;
      color:var(--soft);font-size:13px;
    }
    .tag{
      display:inline-flex;padding:4px 10px;border-radius:5px;
      background:rgba(184,243,74,.12);color:var(--cyan);
      font-size:11px;font-weight:800;
    }
    .meta-divider{width:4px;height:4px;border-radius:50%;background:var(--line)}
    .article-layout{
      display:grid;grid-template-columns:minmax(0,790px) 300px;
      gap:70px;align-items:start;padding:70px 0 92px;
    }
    .article-content{
      min-width:0;color:#d5ddda;font-size:17px;
    }
    .article-content>*:first-child{margin-top:0}
    .article-content h2{
      color:var(--text);font-size:30px;line-height:1.3;
      margin:46px 0 18px;padding-left:17px;
      border-left:4px solid var(--cyan);
    }
    .article-content h3{
      color:var(--text);font-size:23px;line-height:1.4;
      margin:34px 0 13px;
    }
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{margin:0 0 25px;padding-left:26px}
    .article-content li{padding:5px 0}
    .article-content strong{color:var(--text)}
    .article-content a{
      color:var(--cyan);
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .article-content a:hover{color:#e0ff9c}
    .article-content blockquote{
      margin:30px 0;padding:22px 26px;
      border:1px solid var(--line);border-left:4px solid var(--orange);
      border-radius:var(--radius-sm);background:var(--panel);
      color:#dfe7e1;
    }
    .article-content img{
      width:100%;height:auto;border-radius:var(--radius);
      border:1px solid var(--line);margin:30px 0;
    }
    .article-content table{
      width:100%;border-collapse:collapse;margin:28px 0;
      background:var(--panel);border:1px solid var(--line);
      font-size:15px;
    }
    .article-content th,.article-content td{
      padding:12px 15px;border:1px solid var(--line);text-align:left;
    }
    .article-content th{color:var(--cyan);background:var(--panel-2)}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:38px 0}
    .article-content pre{
      overflow:auto;padding:18px;border-radius:var(--radius-sm);
      background:#0d1011;border:1px solid var(--line);color:#d9f59d;
    }
    .article-sidebar{position:sticky;top:108px;display:grid;gap:16px}
    .side-card{
      background:var(--panel);border:1px solid var(--line);
      border-radius:var(--radius);padding:24px;
    }
    .side-card h2,.side-card h3{
      margin:0 0 13px;font-size:18px;line-height:1.35;
    }
    .side-card p{margin:0;color:var(--muted);font-size:13px}
    .side-label{
      color:var(--cyan);font-size:11px;font-weight:800;
      letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px;
    }
    .side-links{display:grid;gap:4px;margin-top:17px}
    .side-links a{
      display:flex;justify-content:space-between;align-items:center;
      padding:10px 0;border-bottom:1px solid rgba(255,255,255,.07);
      color:var(--muted);font-size:13px;
    }
    .side-links a:last-child{border-bottom:0}
    .side-links a:hover{color:var(--cyan);padding-left:4px}
    .side-download{
      background:linear-gradient(145deg,#2c3830,#202528);
      border-color:#536548;
    }
    .side-download .download-symbol{
      width:52px;height:52px;border-radius:14px;
      display:grid;place-items:center;background:var(--cyan);
      color:#172019;font-size:23px;font-weight:900;margin-bottom:18px;
    }
    .side-download h3{font-size:21px}
    .side-download .btn{width:100%;margin-top:20px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 21px;border-radius:10px;border:1px solid transparent;
      font-size:14px;font-weight:800;transition:.25s;
    }
    .btn-primary{background:var(--cyan);color:#182019}
    .btn-primary:hover,.btn-primary:focus{
      background:#d6ff7d;color:#182019;transform:translateY(-3px);
      box-shadow:0 9px 20px rgba(184,243,74,.18);
    }
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
    .btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .article-bottom{
      border-top:1px solid var(--line);padding-top:27px;
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      color:var(--muted);font-size:14px;
    }
    .article-bottom a{color:var(--cyan)}
    .article-empty{
      padding:70px 25px;text-align:center;
      border:1px dashed var(--line);border-radius:var(--radius);
      background:var(--panel);color:var(--muted);
    }
    .article-empty strong{display:block;color:var(--text);font-size:24px;margin-bottom:10px}
    .article-empty a{
      display:inline-flex;margin-top:20px;color:#182019;
      background:var(--cyan);padding:11px 18px;border-radius:9px;font-weight:800;
    }
    .cta{padding:0 0 88px}
    .cta-box{
      border:1px solid var(--line);border-radius:var(--radius);
      padding:38px;display:flex;justify-content:space-between;
      align-items:center;gap:25px;background:var(--panel);
      position:relative;overflow:hidden;
    }
    .cta-box:after{
      content:"";position:absolute;width:220px;height:220px;
      border:1px solid rgba(184,243,74,.18);border-radius:50%;
      right:70px;top:-130px;
    }
    .cta-copy{position:relative;z-index:1}
    .cta-copy h2{font-size:28px;margin:8px 0 6px;line-height:1.3}
    .cta-copy p{color:var(--muted);margin:0;font-size:14px}
    .cta-box .btn{position:relative;z-index:1;white-space:nowrap}
    .site-footer{
      background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.07);
      padding:52px 0 22px;
    }
    .footer-main{display:flex;justify-content:space-between;gap:50px}
    .footer-intro{max-width:330px}
    .footer-intro .brand{min-width:0;margin-bottom:18px}
    .footer-intro p{color:var(--soft);font-size:13px;margin:0}
    .footer-links{display:flex;gap:85px}
    .footer-links div{display:grid;align-content:start;gap:7px}
    .footer-links h3{font-size:13px;color:var(--text);margin:0 0 8px}
    .footer-links a{font-size:13px;color:var(--soft);transition:.2s}
    .footer-links a:hover{color:var(--cyan);padding-left:3px}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.07);margin-top:42px;
      padding-top:18px;display:flex;justify-content:space-between;
      gap:20px;color:#65716f;font-size:11px;flex-wrap:wrap;
    }
    :focus-visible{outline:3px solid rgba(184,243,74,.55);outline-offset:3px}
    @media (max-width:1024px){
      .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:35px}
      .footer-links{gap:40px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:70px}
      .brand{min-width:0}
      .menu-toggle{display:block}
      .nav-menu{
        display:none;position:absolute;left:16px;right:16px;top:78px;
        padding:10px;background:#202528;border:1px solid var(--line);
        border-radius:14px;box-shadow:var(--shadow);flex-direction:column;
        align-items:stretch;gap:3px;
      }
      .nav-menu.open{display:flex}
      .nav-menu a{padding:12px 14px}
      .article-hero{padding:52px 0 48px}
      .article-hero h1{font-size:clamp(32px,8vw,48px);letter-spacing:-1px}
      .article-summary{font-size:15px}
      .article-layout{display:block;padding:48px 0 68px}
      .article-sidebar{position:static;margin-top:45px;grid-template-columns:1fr 1fr}
      .article-content{font-size:16px}
      .article-content h2{font-size:26px;margin-top:38px}
      .cta{padding-bottom:65px}
      .cta-box{padding:28px;display:block}
      .cta-box .btn{margin-top:22px}
      .footer-main{display:block}
      .footer-links{margin-top:35px;gap:60px}
    }
    @media (max-width:520px){
      .brand-copy strong{font-size:16px}
      .brand-copy span{font-size:9px;letter-spacing:1.5px}
      .article-hero:after{font-size:180px;right:-25px}
      .breadcrumb-line{font-size:12px;gap:7px}
      .article-meta{gap:9px}
      .article-content h2{font-size:23px;padding-left:12px}
      .article-content h3{font-size:20px}
      .article-content table{font-size:13px;display:block;overflow-x:auto;white-space:nowrap}
      .article-sidebar{grid-template-columns:1fr}
      .side-card{padding:21px}
      .footer-links{gap:20px;justify-content:space-between}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:6px;overflow-wrap:anywhere}
    }

/* roulang page: category1 */
:root{
      --bg:#171a1c;
      --bg-deep:#101214;
      --panel:#202528;
      --panel-2:#252c2f;
      --line:#374144;
      --text:#f4f7f2;
      --muted:#aab5b3;
      --soft:#74817f;
      --cyan:#b8f34a;
      --cyan-dark:#8bbd28;
      --orange:#ff704d;
      --purple:#a978ff;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 45px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus,summary:focus{outline:3px solid rgba(184,243,74,.42);outline-offset:3px}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.92);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}
    .brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
    .brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}
    .nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}
    .nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}
    .nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}
    .page-hero{position:relative;overflow:hidden;padding:84px 0 76px;background:var(--bg-deep)}
    .page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 72%)}
    .page-hero:after{content:"NEWS";position:absolute;right:4%;bottom:-45px;font-size:150px;font-weight:900;letter-spacing:-8px;color:rgba(184,243,74,.045)}
    .hero-inner{position:relative;z-index:1;max-width:820px}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px}
    .breadcrumb{display:flex;gap:9px;color:var(--soft);font-size:13px;margin:0 0 25px}
    .breadcrumb a:hover{color:var(--cyan)}
    .page-hero h1{font-size:clamp(36px,5vw,65px);line-height:1.12;letter-spacing:-2px;margin:17px 0 22px}
    .page-hero h1 em{font-style:normal;color:var(--cyan)}
    .hero-lead{color:var(--muted);font-size:17px;max-width:720px;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
    .btn-primary{background:var(--cyan);color:#182019}
    .btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
    .btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .section{padding:84px 0}
    .section-dark{background:#1b2022}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:32px;line-height:1.2;margin:9px 0 0}
    .section-head p{max-width:490px;color:var(--muted);font-size:14px;margin:0}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .feature-card,.info-card,.topic-card,.download-box,.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .feature-card{padding:32px;min-height:310px;position:relative;overflow:hidden;background:linear-gradient(135deg,#303b38,#22282a)}
    .feature-card:after{content:"C7";position:absolute;right:-16px;bottom:-62px;font-size:230px;line-height:1;font-weight:900;color:rgba(184,243,74,.08)}
    .feature-card h3{font-size:28px;line-height:1.3;max-width:500px;margin:17px 0 13px;position:relative;z-index:1}
    .feature-card p{color:var(--muted);max-width:520px;position:relative;z-index:1}
    .feature-link{display:inline-flex;color:var(--cyan);font-size:14px;font-weight:800;margin-top:19px;position:relative;z-index:1}
    .side-stack{display:grid;gap:14px}
    .info-card{padding:24px}
    .info-card:hover,.topic-card:hover,.feature-card:hover{border-color:var(--cyan);box-shadow:var(--shadow);transform:translateY(-3px)}
    .info-card h3{font-size:19px;line-height:1.4;margin:11px 0 7px}
    .info-card p,.topic-card p{font-size:14px;color:var(--muted);margin:0}
    .meta{display:flex;gap:10px;align-items:center;color:var(--soft);font-size:12px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:24px;min-height:190px}
    .topic-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#30383a;color:var(--cyan);font-size:20px;margin-bottom:18px}
    .topic-card h3{font-size:19px;margin:0 0 8px}
    .topic-card:nth-child(2) .topic-icon{color:var(--orange)}
    .topic-card:nth-child(3) .topic-icon{color:var(--purple)}
    .signal-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:34px}
    .signal{background:var(--panel);padding:25px 28px}
    .signal strong{display:block;color:var(--cyan);font-size:25px;line-height:1.2;margin-bottom:5px}
    .signal span{font-size:13px;color:var(--muted)}
    .download-section{padding:84px 0}
    .download-box{padding:38px;display:grid;grid-template-columns:1fr .7fr;gap:35px;align-items:center;background:linear-gradient(120deg,#26342b,#202528)}
    .download-box h2{font-size:32px;line-height:1.25;margin:10px 0 13px}
    .download-box p{color:var(--muted);max-width:570px}
    .download-points{display:flex;gap:10px;flex-wrap:wrap;margin:23px 0}
    .download-points span{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:7px;padding:7px 10px}
    .download-visual{min-height:190px;border:1px dashed #637064;border-radius:15px;display:flex;align-items:center;justify-content:center;gap:24px;background:rgba(16,18,20,.3)}
    .device{width:94px;height:145px;border:5px solid #6c7975;border-radius:17px;position:relative;background:#15191a}
    .device:before{content:"C7";position:absolute;inset:25px 12px;background:var(--cyan);color:#172019;border-radius:9px;display:grid;place-items:center;font-weight:900}
    .qr{width:82px;height:82px;background:repeating-conic-gradient(#d8e1d6 0 25%,#26302d 0 50%) 50%/14px 14px;border:7px solid #e8eee5}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}
    .faq-wrap>div>p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{padding:0 20px;border-radius:var(--radius-sm)}
    .faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px;margin:0}
    .cta{padding:0 0 88px}
    .cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:#202628}
    .cta-box h2{font-size:27px;margin:0 0 7px}
    .cta-box p{color:var(--muted);margin:0}
    .site-footer{padding:54px 0 24px;background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.07)}
    .footer-main{display:flex;justify-content:space-between;gap:50px}
    .footer-intro{max-width:310px}
    .footer-intro p{color:var(--muted);font-size:13px;margin-top:20px}
    .footer-links{display:flex;gap:80px}
    .footer-links h3{font-size:14px;margin:0 0 14px}
    .footer-links a{display:block;color:var(--soft);font-size:13px;margin:7px 0;transition:.2s}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:20px;color:var(--soft);font-size:12px}
    @media(max-width:1024px){
      .hero-inner{max-width:720px}
      .intro-grid,.download-box{grid-template-columns:1fr}
      .download-visual{max-width:430px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:70px}
      .brand{min-width:0}
      .menu-toggle{display:block}
      .nav-menu{display:none;position:absolute;left:16px;right:16px;top:77px;padding:10px;background:#202528;border:1px solid var(--line);border-radius:12px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav-menu.open{display:flex}
      .nav-menu a{padding:12px 14px}
      .page-hero{padding:62px 0 60px}
      .page-hero h1{letter-spacing:-1px}
      .section,.download-section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .topic-grid{grid-template-columns:1fr}
      .signal-row{grid-template-columns:1fr}
      .signal{padding:18px 22px}
      .faq-wrap{grid-template-columns:1fr;gap:28px}
      .cta-box{display:block;padding:28px}
      .cta-box .btn{margin-top:22px}
      .footer-main{display:block}
      .footer-links{margin-top:30px;gap:45px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      .page-hero h1{font-size:37px}
      .hero-lead{font-size:15px}
      .hero-actions .btn{width:100%}
      .feature-card,.download-box{padding:25px}
      .feature-card h3{font-size:23px}
      .download-box h2,.faq-wrap h2{font-size:27px}
      .download-visual{gap:14px;min-height:165px}
      .device{transform:scale(.85)}
      .qr{width:70px;height:70px}
      .footer-links{gap:24px}
    }

/* roulang page: category2 */
:root{
      --bg:#171a1c;
      --bg-deep:#101214;
      --panel:#202528;
      --panel-2:#252c2f;
      --line:#374144;
      --text:#f4f7f2;
      --muted:#aab5b3;
      --soft:#74817f;
      --cyan:#b8f34a;
      --cyan-dark:#8bbd28;
      --orange:#ff704d;
      --purple:#a978ff;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 45px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}
    .brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
    .brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}
    .nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}
    .nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}
    .nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}
    .hero{position:relative;overflow:hidden;padding:82px 0 70px;background:var(--bg-deep)}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 76%)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px}
    .hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-2px;margin:17px 0 22px;max-width:700px}
    .hero h1 em{font-style:normal;color:var(--cyan)}
    .hero-lead{color:var(--muted);font-size:17px;max-width:650px;margin-bottom:28px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--soft);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--cyan)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
    .btn-primary{background:var(--cyan);color:#182019}
    .btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
    .btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-notes{display:flex;gap:26px;margin-top:31px;color:var(--soft);font-size:12px;flex-wrap:wrap}
    .hero-notes b{color:var(--text);font-size:18px;margin-right:5px}
    .guide-board{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:20px}
    .board-title{font-size:20px;font-weight:900}
    .status{color:var(--cyan);font-size:11px;font-weight:800;letter-spacing:1px}
    .board-row{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.07)}
    .board-row:last-child{border-bottom:0}
    .row-icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-weight:900;color:#182019;background:var(--cyan)}
    .board-row:nth-child(3) .row-icon{background:var(--orange)}
    .board-row:nth-child(4) .row-icon{background:var(--purple)}
    .board-row strong{display:block;font-size:14px}
    .board-row small{color:var(--soft);font-size:12px}
    .section{padding:84px 0}
    .section-dark{background:#1b2022}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:31px}
    .section-head h2{font-size:32px;line-height:1.2;margin:9px 0 0}
    .section-head p{max-width:500px;color:var(--muted);font-size:14px;margin:0}
    .topic-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
    .topic-nav a{padding:10px 15px;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:13px;transition:.25s}
    .topic-nav a:hover,.topic-nav a.active{border-color:var(--cyan);background:rgba(184,243,74,.1);color:var(--cyan)}
    .guide-feature{display:grid;grid-template-columns:1.15fr .85fr;gap:26px}
    .feature-card,.guide-card,.update-strip{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .feature-card:hover,.guide-card:hover,.update-strip:hover{border-color:var(--cyan);box-shadow:0 13px 32px rgba(0,0,0,.2)}
    .feature-card{padding:31px;min-height:270px;position:relative;overflow:hidden;background:linear-gradient(135deg,#2d3838,#22282a)}
    .feature-card:after{content:"PLAY";position:absolute;right:-15px;bottom:-28px;font-size:94px;font-weight:900;color:rgba(184,243,74,.08)}
    .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}
    .feature-card h3{font-size:27px;line-height:1.3;margin:17px 0 13px;max-width:450px}
    .feature-card p,.guide-card p{color:var(--muted);font-size:14px;max-width:500px}
    .feature-link{display:inline-flex;color:var(--cyan);font-weight:800;font-size:13px;margin-top:13px}
    .guide-stack{display:grid;gap:12px}
    .guide-card{padding:21px}
    .guide-card h3{font-size:18px;line-height:1.4;margin:10px 0 5px}
    .guide-card p{margin:0}
    .guide-card .meta{margin-top:12px}
    .meta{display:flex;gap:12px;align-items:center;color:var(--soft);font-size:12px}
    .guide-index{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .index-item{padding:21px 18px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s}
    .index-item:hover{transform:translateY(-4px);border-color:var(--orange)}
    .index-item b{display:block;color:var(--cyan);font-size:24px;margin-bottom:7px}
    .index-item strong{display:block;font-size:15px;margin-bottom:5px}
    .index-item span{color:var(--muted);font-size:12px}
    .updates{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .update-strip{padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .update-strip h3{font-size:16px;margin:7px 0 3px;line-height:1.4}
    .update-strip p{margin:0;color:var(--muted);font-size:13px}
    .arrow{font-size:22px;color:var(--cyan)}
    .download-section{padding:78px 0}
    .download-box{display:grid;grid-template-columns:1fr .9fr;gap:35px;align-items:center;background:var(--cyan);color:#172019;border-radius:var(--radius);padding:37px 42px;position:relative;overflow:hidden}
    .download-box:after{content:"C7";position:absolute;right:24px;bottom:-63px;font-size:210px;line-height:1;color:rgba(23,26,28,.08);font-weight:900}
    .download-box h2{font-size:34px;line-height:1.2;margin:10px 0 12px}
    .download-box p{max-width:560px;margin:0 0 20px;color:#40532b}
    .download-box .btn-primary{background:#182019;color:var(--cyan)}
    .download-box .btn-primary:hover{background:#2b3924}
    .download-side{position:relative;z-index:1;display:flex;justify-content:flex-end;gap:16px;align-items:center}
    .qr{width:112px;height:112px;background:repeating-linear-gradient(45deg,#172019 0 5px,#f4f7f2 5px 10px);border:8px solid #f4f7f2;border-radius:8px}
    .device-note{font-size:12px;color:#40532b;max-width:145px}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}
    .faq-wrap>div>p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px}
    .faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px;margin:0}
    .cta{padding:0 0 84px}
    .cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:var(--panel)}
    .cta-box h2{font-size:26px;margin:0 0 7px}
    .cta-box p{margin:0;color:var(--muted);font-size:14px}
    .site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);padding:52px 0 24px}
    .footer-main{display:flex;justify-content:space-between;gap:50px}
    .footer-intro p{color:var(--muted);font-size:13px;max-width:280px;margin-top:18px}
    .footer-links{display:flex;gap:80px}
    .footer-links h3{font-size:13px;margin:0 0 13px;color:var(--text)}
    .footer-links a{display:block;color:var(--soft);font-size:13px;margin:8px 0;transition:.2s}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;border-top:1px solid var(--line);margin-top:34px;padding-top:20px;color:var(--soft);font-size:11px}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
    @media(max-width:1024px){
      .hero-grid{gap:40px}
      .guide-index{grid-template-columns:repeat(2,1fr)}
      .footer-links{gap:40px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:70px}
      .brand{min-width:auto}
      .menu-toggle{display:block}
      .nav-menu{display:none;position:absolute;top:70px;left:16px;right:16px;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-menu.open{display:flex}
      .nav-menu a{width:100%}
      .hero{padding:60px 0 54px}
      .hero-grid,.guide-feature,.download-box,.faq-wrap{grid-template-columns:1fr}
      .guide-board{transform:none}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .updates{grid-template-columns:1fr}
      .download-side{justify-content:flex-start}
      .cta-box{display:block;padding:29px}
      .cta-box .btn{margin-top:20px}
      .footer-main{display:block}
      .footer-links{margin-top:28px}
    }
    @media(max-width:520px){
      .hero h1{font-size:38px;letter-spacing:-1px}
      .hero-lead{font-size:15px}
      .hero-notes{gap:13px}
      .guide-index{grid-template-columns:1fr 1fr}
      .feature-card{padding:24px}
      .feature-card h3{font-size:23px}
      .download-box{padding:28px 23px}
      .download-box h2{font-size:28px}
      .download-side{align-items:flex-start}
      .footer-links{gap:25px;flex-wrap:wrap}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }

/* roulang page: category3 */
:root{
      --bg:#171a1c;
      --bg-deep:#101214;
      --panel:#202528;
      --panel-2:#252c2f;
      --line:#374144;
      --text:#f4f7f2;
      --muted:#aab5b3;
      --soft:#74817f;
      --cyan:#b8f34a;
      --cyan-dark:#8bbd28;
      --orange:#ff704d;
      --purple:#a978ff;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 45px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(184,243,74,.65);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}
    .brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
    .brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}
    .nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}
    .nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}
    .nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}

    .page-hero{position:relative;overflow:hidden;padding:80px 0 70px;background:var(--bg-deep);border-bottom:1px solid rgba(255,255,255,.06)}
    .page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 78%)}
    .page-hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(184,243,74,.2);border-radius:50%;right:8%;top:-170px;box-shadow:0 0 0 28px rgba(184,243,74,.035),0 0 0 58px rgba(184,243,74,.025)}
    .breadcrumb{position:relative;z-index:1;color:var(--soft);font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--cyan)}
    .breadcrumb span{margin:0 9px;color:#53605e}
    .hero-copy{position:relative;z-index:1;max-width:780px}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase}
    .page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-2px;margin:17px 0 20px}
    .page-hero h1 em{font-style:normal;color:var(--cyan)}
    .hero-lead{color:var(--muted);font-size:17px;max-width:700px;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
    .btn-primary{background:var(--cyan);color:#182019}
    .btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
    .btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .hero-meta{display:flex;gap:25px;flex-wrap:wrap;margin-top:32px;color:var(--soft);font-size:12px}
    .hero-meta b{display:block;color:var(--text);font-size:15px;margin-bottom:2px}

    .section{padding:82px 0}
    .section-dark{background:#1b2022}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:32px;line-height:1.2;margin:9px 0 0}
    .section-head p{max-width:520px;color:var(--muted);font-size:14px;margin:0}
    .download-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:stretch}
    .download-card{background:var(--cyan);color:#182019;border-radius:var(--radius);padding:38px;position:relative;overflow:hidden;min-height:330px}
    .download-card:after{content:"C7";position:absolute;right:-12px;bottom:-55px;font-size:230px;font-weight:900;line-height:1;color:rgba(24,32,25,.1)}
    .download-card h2{font-size:38px;line-height:1.15;margin:15px 0 12px;max-width:450px;position:relative;z-index:1}
    .download-card p{max-width:490px;position:relative;z-index:1;color:#40512e}
    .download-card .btn{position:relative;z-index:1;margin-top:16px}
    .device-panel{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:30px;display:flex;align-items:center;gap:25px}
    .device{width:148px;height:252px;border:7px solid #0e1112;border-radius:25px;background:#2f3a37;box-shadow:inset 0 0 0 1px #65726d,8px 12px 25px rgba(0,0,0,.25);padding:22px 11px 12px;position:relative;flex:none}
    .device:before{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:42px;height:5px;border-radius:5px;background:#111617}
    .device-screen{height:100%;border-radius:12px;background:linear-gradient(145deg,#b8f34a 0 20%,#252d2e 20% 58%,#ff704d 58%);padding:10px;color:#172019;font-weight:900;font-size:12px}
    .device-screen small{display:block;margin-top:95px;color:#f4f7f2;font-size:10px}
    .device-info h3{font-size:24px;margin:0 0 9px}
    .device-info p{color:var(--muted);font-size:14px;margin:0 0 17px}
    .version{display:inline-flex;padding:5px 9px;border-radius:6px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}
    .qr-box{width:92px;height:92px;background:#f2f5eb;border-radius:8px;padding:8px;display:grid;grid-template-columns:repeat(7,1fr);gap:3px;margin-top:18px}
    .qr-box i{background:#182019;display:block}
    .qr-box i:nth-child(3n){background:transparent}
    .qr-caption{font-size:11px;color:var(--soft);margin-top:7px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .feature-card{padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s}
    .feature-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:var(--shadow)}
    .feature-icon{width:42px;height:42px;border-radius:10px;background:rgba(184,243,74,.12);color:var(--cyan);display:grid;place-items:center;font-size:20px;font-weight:900;margin-bottom:20px}
    .feature-card h3{font-size:18px;margin:0 0 8px}
    .feature-card p{color:var(--muted);font-size:14px;margin:0}
    .steps{display:grid;grid-template-columns:1fr 1fr;gap:14px 45px;counter-reset:step}
    .step{display:grid;grid-template-columns:48px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
    .step-number{width:42px;height:42px;border-radius:50%;background:var(--panel-2);border:1px solid var(--cyan);color:var(--cyan);display:grid;place-items:center;font-weight:900}
    .step h3{margin:0 0 5px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .info-strip{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .info-cell{background:var(--panel);padding:24px}
    .info-cell strong{display:block;color:var(--cyan);font-size:13px;margin-bottom:7px}
    .info-cell span{color:var(--muted);font-size:14px}
    .content-links{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .link-panel{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--panel);transition:.25s}
    .link-panel:hover{border-color:var(--cyan);background:var(--panel-2)}
    .link-panel h3{font-size:22px;margin:0 0 9px}
    .link-panel p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .text-link{color:var(--cyan);font-weight:800;font-size:14px}
    .text-link:hover{color:#d6ff7d}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}
    .faq-wrap>div>p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px}
    .faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px;margin:0}
    .cta{padding:0 0 88px}
    .cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:linear-gradient(110deg,#242c2e,#1d2325)}
    .cta-box h2{font-size:29px;margin:0 0 8px}
    .cta-box p{color:var(--muted);font-size:14px;margin:0}
    .site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.07);padding:52px 0 25px}
    .footer-main{display:flex;justify-content:space-between;gap:50px}
    .footer-intro{max-width:340px}
    .footer-intro p{color:var(--muted);font-size:13px;margin-top:18px}
    .footer-links{display:flex;gap:85px}
    .footer-links h3{font-size:14px;margin:0 0 13px}
    .footer-links a{display:block;color:var(--soft);font-size:13px;margin:8px 0;transition:.2s}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:var(--soft);font-size:11px}
    @media(max-width:1024px){
      .download-layout,.content-links{grid-template-columns:1fr}
      .hero-grid{grid-template-columns:1fr}
      .page-hero{padding-top:65px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .site-header,.nav-wrap{height:70px}
      .brand{min-width:0}
      .menu-toggle{display:block}
      .nav-menu{display:none;position:absolute;top:70px;left:0;right:0;padding:14px 17px 18px;background:#171a1c;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;box-shadow:0 15px 25px rgba(0,0,0,.25)}
      .nav-menu.is-open{display:flex}
      .nav-menu a{padding:12px 14px}
      .page-hero h1{letter-spacing:-1px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .feature-grid,.steps,.info-strip{grid-template-columns:1fr}
      .device-panel{align-items:flex-start}
      .faq-wrap{grid-template-columns:1fr;gap:28px}
      .footer-main{display:block}
      .footer-links{margin-top:30px;gap:50px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
      .cta-box{display:block;padding:28px}
      .cta-box .btn{margin-top:20px}
    }
    @media(max-width:520px){
      .page-hero{padding:52px 0 55px}
      .page-hero h1{font-size:35px}
      .hero-lead{font-size:15px}
      .hero-actions .btn{width:100%}
      .download-card,.device-panel{padding:25px}
      .download-card h2{font-size:31px}
      .device-panel{display:block}
      .device{margin:0 auto 22px}
      .footer-links{display:grid;grid-template-columns:1fr 1fr;gap:20px}
      .brand-copy strong{font-size:16px}
    }

/* 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}

/* roulang page: category3 */
:root{
      --bg:#171a1c;--bg-deep:#101214;--panel:#202528;--panel-2:#252c2f;
      --line:#374144;--text:#f4f7f2;--muted:#aab5b3;--soft:#74817f;
      --cyan:#b8f34a;--cyan-dark:#8bbd28;--orange:#ff704d;--purple:#a978ff;
      --radius:18px;--radius-sm:11px;--shadow:0 18px 45px rgba(0,0,0,.22);--container:1180px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}
    img{display:block;max-width:100%}.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}.brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}.nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}.nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}.nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}
    .hero{position:relative;overflow:hidden;padding:78px 0 70px;background:var(--bg-deep);border-bottom:1px solid rgba(255,255,255,.06)}
    .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 76%)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase}
    .hero h1{font-size:clamp(34px,4.7vw,62px);line-height:1.12;letter-spacing:-2px;margin:17px 0 22px;max-width:680px}.hero h1 em{font-style:normal;color:var(--cyan)}
    .hero-lead{color:var(--muted);font-size:17px;max-width:620px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
    .btn-primary{background:var(--cyan);color:#182019}.btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}.btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .device-panel{min-height:350px;background:linear-gradient(145deg,#2c3736,#202628);border:1px solid #475252;border-radius:var(--radius);padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .device-panel:after{content:"C7";position:absolute;right:-25px;bottom:-74px;font-size:250px;line-height:1;font-weight:900;color:rgba(184,243,74,.08)}
    .device-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}.device-label{font-size:12px;color:var(--cyan);letter-spacing:1.5px;font-weight:800}.device-dot{width:10px;height:10px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 6px rgba(255,112,77,.13)}
    .device-card{position:relative;z-index:1;margin:34px auto 0;width:min(255px,80%);padding:22px 20px;border:7px solid #121618;border-radius:27px;background:#2a3333;box-shadow:0 18px 30px rgba(0,0,0,.28)}
    .device-screen{height:178px;border-radius:15px;background:linear-gradient(135deg,#b8f34a 0 28%,#39483a 28% 52%,#a978ff 52% 75%,#ff704d 75%);position:relative;overflow:hidden}
    .device-screen:after{content:"C7 GAMES";position:absolute;left:15px;bottom:17px;font-size:22px;font-weight:900;color:#182019}
    .device-info{display:flex;justify-content:space-between;margin-top:14px;font-size:11px;color:var(--muted)}.device-info b{color:var(--text)}
    .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:32px;line-height:1.2;margin:9px 0}.section-head p{max-width:520px;color:var(--muted);font-size:14px}
    .download-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px}.info-card,.step-card,.faq-item,.link-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .info-card:hover,.step-card:hover,.link-panel:hover{border-color:var(--cyan);box-shadow:0 12px 30px rgba(0,0,0,.18);transform:translateY(-3px)}
    .info-card{padding:30px}.info-card h3{font-size:23px;margin:11px 0}.info-card p{color:var(--muted);font-size:14px}.tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}
    .version-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.version{padding:10px 13px;border-radius:9px;background:var(--panel-2);font-size:13px;color:var(--muted)}.version b{color:var(--text);margin-right:5px}
    .qr-area{display:flex;align-items:center;gap:22px;margin-top:22px}.qr{width:98px;height:98px;background:repeating-linear-gradient(45deg,#f4f7f2 0 5px,#27302e 5px 10px);border:8px solid #f4f7f2;border-radius:6px;flex:none}.qr-copy{color:var(--muted);font-size:13px}.qr-copy strong{display:block;color:var(--text);margin-bottom:5px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step-card{padding:24px}.step-no{font-size:32px;color:var(--orange);font-weight:900;line-height:1}.step-card h3{font-size:17px;margin:17px 0 7px}.step-card p{color:var(--muted);font-size:13px;margin:0}
    .device-note{margin-top:20px;padding:17px 20px;border-left:3px solid var(--cyan);background:#1c2423;color:var(--muted);font-size:13px}
    .content-strip{background:#1b2022}.link-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.link-panel{padding:25px;display:flex;justify-content:space-between;gap:20px;align-items:center}.link-panel h3{font-size:20px;margin:8px 0}.link-panel p{margin:0;color:var(--muted);font-size:13px}.arrow{color:var(--cyan);font-size:25px}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}.faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}.faq-wrap>div>p{color:var(--muted);font-size:14px}.faq-list{display:grid;gap:10px}
    .faq-item{padding:0 20px}.faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}.faq-item[open] summary:after{content:"−"}.faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px;margin:0}
    .cta{padding:0 0 88px}.cta-box{border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:linear-gradient(110deg,#26302f,#202528)}.cta-box h2{font-size:29px;margin:9px 0}.cta-box p{color:var(--muted);margin:0}
    .site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);padding:52px 0 22px}.footer-main{display:flex;justify-content:space-between;gap:50px}.footer-intro p{max-width:310px;color:var(--muted);font-size:13px;margin-top:18px}.footer-links{display:flex;gap:75px}.footer-links h3{font-size:13px;color:var(--text);margin:0 0 12px}.footer-links a{display:block;color:var(--soft);font-size:13px;margin:7px 0;transition:.2s}.footer-links a:hover{color:var(--cyan)}.footer-bottom{display:flex;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:18px;margin-top:38px;color:var(--soft);font-size:11px}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
    @media(max-width:1024px){.hero-grid{gap:35px}.footer-links{gap:35px}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.site-header,.nav-wrap{height:70px}.brand{min-width:0}.menu-toggle{display:block}.nav-menu{display:none;position:absolute;top:70px;left:16px;right:16px;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;flex-direction:column;align-items:stretch}.nav-menu.open{display:flex}.nav-menu a{display:block}.hero{padding:58px 0}.hero-grid,.download-layout,.faq-wrap{grid-template-columns:1fr}.hero h1{letter-spacing:-1px}.device-panel{min-height:310px}.section{padding:62px 0}.steps{grid-template-columns:1fr}.link-grid{grid-template-columns:1fr}.footer-main{display:block}.footer-links{margin-top:30px;justify-content:space-between}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}}
    @media(max-width:520px){.brand-copy strong{font-size:16px}.brand-copy span{font-size:9px}.hero h1{font-size:36px}.hero-lead{font-size:15px}.hero-actions .btn{width:100%}.section-head{display:block}.section-head h2,.faq-wrap h2{font-size:27px}.info-card,.cta-box{padding:24px}.qr-area{align-items:flex-start}.footer-links{gap:18px}.footer-links>div{flex:1}}

/* roulang page: category2 */
:root{
      --bg:#171a1c;
      --bg-deep:#101214;
      --panel:#202528;
      --panel-2:#252c2f;
      --line:#374144;
      --text:#f4f7f2;
      --muted:#aab5b3;
      --soft:#74817f;
      --cyan:#b8f34a;
      --cyan-dark:#8bbd28;
      --orange:#ff704d;
      --purple:#a978ff;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 18px 45px rgba(0,0,0,.22);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(23,26,28,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:215px}
    .brand-mark{width:38px;height:38px;border-radius:10px;background:var(--cyan);color:#172019;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 rgba(255,112,77,.65)}
    .brand-copy strong{display:block;font-size:18px;line-height:1.1;letter-spacing:.3px}
    .brand-copy span{display:block;font-size:10px;color:var(--soft);letter-spacing:2px;margin-top:3px}
    .nav-menu{display:flex;align-items:center;gap:8px}
    .nav-menu a{color:var(--muted);font-size:14px;padding:10px 14px;border-radius:9px;transition:.25s}
    .nav-menu a:hover,.nav-menu a:focus,.nav-menu a.active{color:var(--text);background:#2b3335}
    .nav-menu a.active{box-shadow:inset 0 -2px var(--cyan)}
    .nav-download{background:var(--cyan)!important;color:#172019!important;font-weight:800!important}
    .nav-download:hover{background:#d2ff70!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:7px 10px}
    .page-hero{position:relative;overflow:hidden;padding:82px 0 72px;background:var(--bg-deep);border-bottom:1px solid var(--line)}
    .page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(184,243,74,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(184,243,74,.05) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,black,transparent 78%)}
    .page-hero:after{content:"PLAY";position:absolute;right:4%;bottom:-42px;font-size:150px;line-height:1;font-weight:900;color:rgba(184,243,74,.045);letter-spacing:-8px}
    .hero-content{position:relative;z-index:1;max-width:790px}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase}
    .page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-2px;margin:17px 0 22px}
    .page-hero h1 em{font-style:normal;color:var(--cyan)}
    .hero-lead{color:var(--muted);font-size:17px;max-width:700px;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-size:14px;font-weight:800;transition:.25s}
    .btn-primary{background:var(--cyan);color:#182019}
    .btn-primary:hover,.btn-primary:focus{background:#d6ff7d;transform:translateY(-3px);box-shadow:0 9px 20px rgba(184,243,74,.18)}
    .btn-secondary{border-color:var(--line);color:var(--text);background:#202628}
    .btn-secondary:hover,.btn-secondary:focus{border-color:var(--cyan);color:var(--cyan)}
    .section{padding:82px 0}
    .section-alt{background:#1b2022}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:32px;line-height:1.2;margin:9px 0 0}
    .section-head p{max-width:500px;color:var(--muted);font-size:14px;margin:0}
    .breadcrumb{display:flex;align-items:center;gap:10px;color:var(--soft);font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--cyan)}
    .breadcrumb span{color:var(--line)}
    .topic-nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
    .topic-chip{padding:10px 16px;border:1px solid var(--line);border-radius:9px;color:var(--muted);background:var(--panel);font-size:14px;transition:.25s}
    .topic-chip:hover,.topic-chip.active{border-color:var(--cyan);color:var(--cyan);background:#273128}
    .guide-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch}
    .guide-feature,.guide-card,.guide-row{background:var(--panel);border:1px solid var(--line);transition:.25s}
    .guide-feature{border-radius:var(--radius);padding:32px;position:relative;overflow:hidden;min-height:330px}
    .guide-feature:after{content:"C7";position:absolute;right:-13px;bottom:-67px;font-size:230px;line-height:1;font-weight:900;color:rgba(184,243,74,.07)}
    .guide-feature>*{position:relative;z-index:1}
    .guide-feature h3{font-size:29px;line-height:1.3;max-width:500px;margin:18px 0 13px}
    .guide-feature p{color:var(--muted);max-width:500px;margin-bottom:25px}
    .guide-stack{display:grid;gap:12px}
    .guide-card{border-radius:var(--radius-sm);padding:22px}
    .guide-card:hover,.guide-feature:hover,.guide-row:hover{border-color:var(--cyan);box-shadow:0 12px 28px rgba(0,0,0,.18);transform:translateY(-2px)}
    .guide-card h3{font-size:18px;line-height:1.35;margin:10px 0 6px}
    .guide-card p,.guide-row p{color:var(--muted);font-size:14px;margin:0}
    .tag{display:inline-flex;padding:4px 9px;border-radius:5px;background:rgba(184,243,74,.12);color:var(--cyan);font-size:11px;font-weight:800}
    .tag.orange{background:rgba(255,112,77,.13);color:var(--orange)}
    .tag.purple{background:rgba(169,120,255,.14);color:#c9adff}
    .meta{display:flex;gap:12px;align-items:center;color:var(--soft);font-size:12px;flex-wrap:wrap}
    .guide-list{display:grid;gap:12px}
    .guide-row{display:grid;grid-template-columns:150px 1fr auto;gap:22px;align-items:center;border-radius:var(--radius-sm);padding:18px 21px}
    .row-visual{height:92px;border-radius:10px;background:linear-gradient(135deg,#354536,#22292b);position:relative;overflow:hidden}
    .row-visual:before{content:"攻略";position:absolute;right:10px;bottom:3px;font-weight:900;font-size:28px;color:rgba(184,243,74,.25)}
    .guide-row h3{font-size:18px;line-height:1.35;margin:9px 0 5px}
    .arrow{font-size:23px;color:var(--cyan);transition:.2s}
    .guide-row:hover .arrow{transform:translateX(4px)}
    .download-cta{background:var(--cyan);color:#182019;border-radius:var(--radius);padding:36px 40px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .download-cta h2{font-size:30px;line-height:1.25;margin:9px 0}
    .download-cta p{max-width:610px;margin:0;color:#40502b}
    .download-cta .btn{background:#182019;color:var(--cyan)}
    .download-cta .btn:hover{background:#2b3924}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:24px}
    .step-number{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;background:var(--orange);color:#fff;font-weight:900;margin-bottom:18px}
    .step h3{font-size:18px;margin:0 0 8px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-wrap h2{font-size:32px;line-height:1.25;margin:10px 0 14px}
    .faq-wrap>div>p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px}
    .faq-item summary{list-style:none;padding:18px 0;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--cyan);font-size:21px}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{border-top:1px solid var(--line);padding:14px 0 18px;color:var(--muted);font-size:14px;margin:0}
    .site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:52px 0 22px}
    .footer-main{display:flex;justify-content:space-between;gap:60px}
    .footer-intro{max-width:330px}
    .footer-intro p{color:var(--muted);font-size:13px;margin-top:20px}
    .footer-links{display:flex;gap:90px}
    .footer-links h3{font-size:14px;margin:0 0 14px}
    .footer-links a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:.2s}
    .footer-links a:hover{color:var(--cyan)}
    .footer-bottom{border-top:1px solid var(--line);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:var(--soft);font-size:12px}
    @media(max-width:1024px){
      .hero-grid,.guide-layout{grid-template-columns:1fr}
      .guide-stack{grid-template-columns:repeat(2,1fr)}
      .faq-wrap{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:70px}
      .nav-wrap{position:relative}
      .brand{min-width:0}
      .menu-toggle{display:block}
      .nav-menu{display:none;position:absolute;left:0;right:0;top:70px;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:0 0 14px 14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav-menu.is-open{display:flex}
      .nav-menu a{padding:12px 14px}
      .page-hero{padding:62px 0 58px}
      .section{padding:62px 0}
      .section-head,.footer-main{display:block}
      .section-head p{margin-top:15px}
      .guide-stack,.steps{grid-template-columns:1fr}
      .guide-row{grid-template-columns:105px 1fr auto;gap:14px}
      .row-visual{height:78px}
      .download-cta{display:block;padding:30px 25px}
      .download-cta .btn{margin-top:22px}
      .faq-wrap{grid-template-columns:1fr;gap:25px}
      .footer-links{margin-top:30px;gap:50px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .page-hero h1{font-size:36px;letter-spacing:-1px}
      .hero-lead{font-size:15px}
      .hero-actions .btn{width:100%}
      .section-head h2,.faq-wrap h2{font-size:27px}
      .guide-feature{padding:24px;min-height:300px}
      .guide-feature h3{font-size:24px}
      .guide-row{grid-template-columns:1fr;gap:12px}
      .row-visual{height:115px}
      .guide-row .arrow{display:none}
      .footer-links{gap:25px;justify-content:space-between}
      .footer-links>div{min-width:0}
      .brand-copy strong{font-size:16px}
    }