/* roulang page: index */
:root{
  --ink:#17191c;
  --ink-soft:#25292d;
  --lime:#c9f84a;
  --lime-dark:#9bc52a;
  --violet:#7770a7;
  --violet-soft:#eeeef8;
  --paper:#f6f7f3;
  --warm:#fffdf8;
  --line:#dedfd8;
  --muted:#737875;
  --muted-light:#aeb4ad;
  --coral:#ef806f;
  --amber:#efb84e;
  --white:#fff;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow:0 18px 48px rgba(22,27,24,.09);
  --ease:all .22s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  color:var(--ink);
  background:var(--paper);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(1200px,calc(100% - 48px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(23,25,28,.96);
  border-bottom:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
}
.navbar{height:78px;display:flex;align-items:center;gap:30px}
.brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
.brand-mark{
  width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
  position:relative;overflow:hidden;transform:rotate(-8deg);
}
.brand-mark:before,.brand-mark:after{
  content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
  transform:rotate(-31deg);left:-7px;width:48px;
}
.brand-mark:before{top:11px}.brand-mark:after{top:23px;opacity:.5}
.brand-copy{line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
.brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:6px;flex:1}
.nav-links a{
  position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
  transition:var(--ease);white-space:nowrap
}
.nav-links a:after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
}
.nav-links a:hover,.nav-links a.active{color:var(--lime)}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto}
.btn{
  min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
  transition:var(--ease);border:1px solid transparent
}
.btn-primary{background:var(--lime);color:#182015}
.btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
.btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
.btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-dark{background:var(--ink-soft);color:#fff}
.btn-dark:hover{background:#343a40;transform:translateY(-2px)}
.btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible,input:focus-visible{
  outline:3px solid rgba(201,248,74,.75);outline-offset:3px
}
.menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
.hero{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  min-height:610px;display:flex;align-items:center
}
.hero:before{
  content:"";position:absolute;width:760px;height:760px;border:1px solid rgba(201,248,74,.18);
  border-radius:50%;right:-190px;top:-210px
}
.hero:after{
  content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(119,112,167,.3);
  border-radius:50%;right:15px;top:-90px
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;gap:70px;align-items:center;padding:82px 0}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-.045em;margin:20px 0 22px;max-width:720px}
.hero h1 span{color:var(--lime)}
.hero-copy{max-width:625px;color:#c9cec8;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero .btn-secondary{border-color:#59605b;color:#eef2ec}
.hero .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
.hero-art{position:relative;min-height:375px}
.radar{
  position:absolute;inset:25px 0 0 28px;border:1px solid rgba(201,248,74,.28);
  border-radius:50%;transform:rotate(-20deg)
}
.radar:before,.radar:after{content:"";position:absolute;inset:12%;border:1px solid rgba(255,255,255,.1);border-radius:50%}
.radar:after{inset:25%;border-color:rgba(201,248,74,.2)}
.orbit-line{position:absolute;width:430px;height:150px;border:2px solid var(--lime);border-left-color:transparent;border-bottom-color:transparent;border-radius:50%;transform:rotate(-23deg);right:7px;top:95px;opacity:.85}
.orbit-line.two{width:330px;height:100px;right:47px;top:167px;border-color:var(--violet);border-left-color:transparent;opacity:.8}
.score-panel{
  position:absolute;left:50px;top:74px;width:285px;padding:22px;background:rgba(42,47,47,.92);
  border:1px solid rgba(201,248,74,.27);border-radius:18px;box-shadow:var(--shadow)
}
.panel-top{display:flex;justify-content:space-between;color:#aeb4ad;font-size:12px}
.live-dot{color:var(--lime);font-weight:700}
.panel-title{font-size:20px;font-weight:800;margin:22px 0 18px}
.score-row{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-top:1px solid rgba(255,255,255,.1)}
.score-name{color:#d8ddd8;font-size:14px}.score-value{font-size:23px;color:var(--lime);font-weight:800}
.data-chip{position:absolute;right:12px;bottom:52px;background:var(--lime);color:#1c2318;border-radius:13px;padding:14px 17px;font-weight:800;font-size:14px;transform:rotate(4deg)}
.data-chip small{display:block;font-size:11px;font-weight:600;margin-top:2px}
.quick-wrap{background:var(--warm);border-bottom:1px solid var(--line)}
.quick-links{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.quick-link{padding:25px 24px;border-right:1px solid var(--line);display:flex;align-items:center;gap:15px;transition:var(--ease)}
.quick-link:first-child{border-left:1px solid var(--line)}
.quick-link:hover{background:#f0f5dd}
.quick-icon{width:42px;height:42px;border-radius:12px;background:var(--violet-soft);color:var(--violet);display:grid;place-items:center;font-weight:900;font-size:18px}
.quick-link strong{display:block;font-size:15px}.quick-link span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.section{padding:96px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:32px}
.section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.section h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin-top:8px}
.section-intro{max-width:490px;color:var(--muted);font-size:15px}
.text-link{display:inline-flex;align-items:center;gap:8px;color:#59643b;font-weight:700;font-size:14px;white-space:nowrap}
.text-link:hover{color:var(--violet)}.text-link b{font-size:19px;transition:var(--ease)}.text-link:hover b{transform:translateX(4px)}
.feature-grid{display:grid;grid-template-columns:1.24fr .76fr;gap:20px}
.feature-card,.mini-card,.app-panel,.faq-box,.seo-strip{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--warm)}
.feature-card{overflow:hidden;min-height:395px;position:relative;background:var(--ink-soft);color:#fff}
.feature-visual{height:205px;position:relative;overflow:hidden;background:#37394a}
.feature-visual:before{content:"";position:absolute;width:390px;height:230px;border:2px solid var(--lime);border-radius:50%;transform:rotate(18deg);left:16%;top:32px}
.feature-visual:after{content:"";position:absolute;width:240px;height:100px;background:var(--violet);opacity:.55;filter:blur(35px);right:5%;top:25px}
.visual-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:32px 32px;opacity:.4}
.feature-content{padding:24px 27px}.tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:6px;background:var(--lime);color:#1e281a;font-size:11px;font-weight:800}.tag.purple{background:#dcd8ff;color:#514a86}
.feature-card h3{font-size:24px;line-height:1.35;margin:13px 0 8px}.feature-card p{color:#c2c8c0;font-size:14px}
.mini-list{display:flex;flex-direction:column;gap:12px}.mini-card{padding:20px 21px;transition:var(--ease)}.mini-card:hover{transform:translateX(4px);border-color:var(--lime);box-shadow:var(--shadow)}
.mini-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.mini-card h3{font-size:17px;line-height:1.45;margin:10px 0 5px}.mini-card p{font-size:13px;color:var(--muted)}
.news-section{background:#eceee8}
.news-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px}
.news-aside{padding-right:22px}.news-aside h2{max-width:320px}.news-aside p{margin-top:17px;color:var(--muted)}
.news-list{border-top:1px solid #cfd3ca}
.news-item{display:grid;grid-template-columns:92px 1fr 25px;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid #cfd3ca;transition:var(--ease)}
.news-item:hover{padding-left:10px;background:rgba(255,255,255,.35)}
.news-date{font-size:12px;color:var(--muted);line-height:1.5}.news-date strong{display:block;color:var(--ink);font-size:15px}
.news-item h3{font-size:17px;line-height:1.4;margin-bottom:4px}.news-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-arrow{font-size:21px;color:var(--violet);transition:var(--ease)}.news-item:hover .news-arrow{transform:translateX(5px);color:var(--ink)}
.empty-state{padding:34px 20px;color:var(--muted);background:var(--warm);border:1px dashed #c8cdc2;border-radius:14px;text-align:center}
.app-section{padding-top:20px}
.app-panel{display:grid;grid-template-columns:1.1fr .9fr;min-height:360px;overflow:hidden;background:var(--ink);color:#fff;border:0}
.app-copy{padding:58px 60px;position:relative}.app-copy:before{content:"APP";position:absolute;right:25px;top:24px;font-size:88px;font-weight:900;color:rgba(255,255,255,.035)}
.app-copy h2{font-size:36px;line-height:1.28;margin:12px 0 14px}.app-copy p{color:#c5cbc3;max-width:480px}.app-buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.version{font-size:12px;color:#8d968d;margin-top:15px}
.device-stage{position:relative;min-height:360px;background:#292e2d;overflow:hidden;display:flex;align-items:center;justify-content:center}
.device-stage:before{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(201,248,74,.25);border-radius:50%}
.phone{position:relative;width:162px;height:300px;border:7px solid #121515;border-radius:27px;background:#e9f0d9;box-shadow:0 20px 35px rgba(0,0,0,.32);transform:rotate(8deg);overflow:hidden}
.phone-top{height:45px;background:var(--lime);padding:14px 13px;font-size:10px;font-weight:900;color:#1c2318}.phone-body{padding:16px 12px;color:#272d28}.phone-line{height:9px;border-radius:5px;background:#b4c7a3;margin-bottom:10px}.phone-line.long{width:82%}.phone-score{background:#fff;border-radius:10px;padding:12px;margin-top:18px;font-size:11px}.phone-score b{display:block;font-size:21px;margin-top:5px}
.faq-section{background:var(--warm)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}.faq-lead p{color:var(--muted);margin-top:16px}.faq-box{padding:8px 25px}
.faq-item{border-bottom:1px solid var(--line)}.faq-item:last-child{border-bottom:0}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;text-align:left;background:none;padding:20px 0;color:var(--ink);font-weight:700;font-size:15px}.faq-question span{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:var(--violet-soft);color:var(--violet);transition:var(--ease)}.faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .25s ease,padding .25s ease}.faq-item.open .faq-answer{max-height:120px;padding:0 35px 20px 0}.faq-item.open .faq-question span{background:var(--lime);color:var(--ink);transform:rotate(45deg)}
.seo-strip{padding:26px 30px;margin-top:32px;background:#f1f3eb;display:flex;gap:20px;align-items:flex-start}.seo-strip b{color:var(--violet);white-space:nowrap}.seo-strip p{font-size:14px;color:var(--muted)}
.cta-section{padding:70px 0;background:var(--lime)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-inner h2{font-size:32px;line-height:1.3;max-width:690px}.cta-inner p{margin-top:8px;color:#45513a}
.site-footer{background:#151719;color:#d8ddd7;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:45px;padding-bottom:48px;border-bottom:1px solid #343936}
.footer-brand p{color:#929b92;font-size:13px;max-width:310px;margin-top:16px}.footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:15px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links a{color:#aeb6ad;font-size:13px;transition:var(--ease)}.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#747d74;font-size:12px}
@media(max-width:1100px){.nav-links{gap:0}.nav-links a{padding-left:8px;padding-right:8px}.brand{min-width:205px}.hero-grid{gap:30px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media(max-width:860px){
  .container{width:min(100% - 36px,720px)}.navbar{height:70px}.brand{min-width:0;flex:1}.brand-name{font-size:15px}
  .menu-toggle{display:block}.nav-links{display:none;position:absolute;left:18px;right:18px;top:69px;padding:12px;background:#202326;border:1px solid #3a403d;border-radius:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-links a:after{left:14px;right:auto;width:24px}
  .nav-cta{display:none}.hero-grid{grid-template-columns:1fr;padding:70px 0 55px}.hero-art{min-height:300px;max-width:530px;width:100%;margin:0 auto}.score-panel{left:12%;top:42px}.radar{inset:15px 4% 0 15%}
  .quick-links{grid-template-columns:repeat(2,1fr)}.quick-link:nth-child(2){border-right:0}.quick-link:nth-child(3){border-left:1px solid var(--line);border-top:1px solid var(--line)}.quick-link:nth-child(4){border-top:1px solid var(--line)}
  .section{padding:70px 0}.feature-grid,.news-layout,.faq-layout{grid-template-columns:1fr;gap:30px}.news-aside{padding-right:0}.app-panel{grid-template-columns:1fr}.device-stage{min-height:280px}.app-copy{padding:44px 35px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:560px){
  .container{width:calc(100% - 30px)}.brand-sub{display:none}.brand-mark{width:34px;height:34px}.brand-name{font-size:14px}
  .hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.hero-art{transform:scale(.9);transform-origin:center}
  .quick-link{padding:18px 13px;gap:10px}.quick-link strong{font-size:13px}.quick-link span{font-size:11px}.quick-icon{width:35px;height:35px;font-size:15px}
  .section-head{display:block}.section-head .text-link{margin-top:18px}.feature-content{padding:21px}.feature-card h3{font-size:21px}
  .news-item{grid-template-columns:65px 1fr 18px;gap:10px}.news-item h3{font-size:15px}.news-item p{font-size:12px}.news-date strong{font-size:13px}
  .app-copy{padding:36px 25px}.app-copy h2{font-size:29px}.app-buttons{flex-direction:column}.app-buttons .btn{width:100%}.device-stage{min-height:250px}
  .faq-layout{gap:22px}.faq-box{padding:5px 18px}.faq-question{font-size:14px}.seo-strip{display:block;padding:22px}.seo-strip b{display:block;margin-bottom:7px}
  .cta-inner{display:block}.cta-inner h2{font-size:26px}.cta-inner .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:32px 22px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
}

/* roulang page: article */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(14px);
    }
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:none;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
      transform:rotate(-31deg);left:-7px;width:48px;
    }
    .brand-mark:before{top:11px}
    .brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
      transition:var(--ease);white-space:nowrap
    }
    .nav-links a:after{
      content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
    .article-hero{
      position:relative;
      overflow:hidden;
      background:var(--ink);
      color:#fff;
      padding:72px 0 78px;
    }
    .article-hero:before{
      content:"";
      position:absolute;
      width:620px;height:620px;
      right:-180px;top:-260px;
      border:1px solid rgba(201,248,74,.2);
      border-radius:50%;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:350px;height:350px;
      right:90px;top:-110px;
      border:1px solid rgba(119,112,167,.35);
      border-radius:50%;
    }
    .article-hero-inner{position:relative;z-index:1;max-width:900px}
    .breadcrumb{
      display:flex;align-items:center;gap:9px;flex-wrap:wrap;
      color:#aeb4ad;font-size:13px;margin-bottom:25px
    }
    .breadcrumb a{color:var(--lime)}
    .breadcrumb span{color:#626a63}
    .article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}
    .tag{
      display:inline-flex;align-items:center;
      padding:4px 10px;border-radius:6px;
      background:var(--lime);color:#1e281a;
      font-size:12px;font-weight:800
    }
    .meta-text{color:#aeb4ad;font-size:13px}
    .article-hero h1{
      max-width:900px;
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.2;
      letter-spacing:-.045em;
      overflow-wrap:anywhere;
    }
    .article-summary{
      max-width:790px;
      color:#c9cec8;
      font-size:17px;
      line-height:1.9;
      margin:23px 0 0;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 280px;
      gap:54px;
      align-items:start;
      padding:72px 0 92px;
    }
    .article-content{
      min-width:0;
      background:var(--warm);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:clamp(26px,5vw,58px);
      box-shadow:var(--shadow);
    }
    .article-content h2{
      font-size:30px;line-height:1.35;margin:38px 0 17px;
      letter-spacing:-.025em
    }
    .article-content h3{
      font-size:22px;line-height:1.45;margin:30px 0 13px
    }
    .article-content p{margin:0 0 22px;color:#454b47}
    .article-content ul,.article-content ol{padding-left:1.5em;margin:0 0 24px;color:#454b47}
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:28px 0;padding:20px 24px;
      background:var(--violet-soft);
      border-left:4px solid var(--violet);
      color:#4e4a70;border-radius:0 12px 12px 0
    }
    .article-content img{border-radius:14px;margin:28px auto}
    .article-content table{
      width:100%;border-collapse:collapse;margin:26px 0;
      background:#fff;border:1px solid var(--line)
    }
    .article-content th,.article-content td{
      padding:12px 14px;border:1px solid var(--line);text-align:left
    }
    .article-content th{background:var(--violet-soft);font-weight:800}
    .article-content a{color:#657a21;text-decoration:underline;text-underline-offset:3px}
    .article-content a:hover{color:var(--violet)}
    .article-side{position:sticky;top:108px}
    .side-card{
      background:var(--warm);
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      padding:24px;
      margin-bottom:18px
    }
    .side-card.dark{background:var(--ink-soft);color:#fff;border-color:var(--ink-soft)}
    .side-title{font-size:17px;font-weight:800;margin:0 0 15px}
    .side-card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0}
    .dark p{color:#c9cec8}
    .side-list{display:grid;gap:12px}
    .side-list a{
      display:flex;align-items:center;justify-content:space-between;
      gap:10px;padding:10px 0;border-bottom:1px solid var(--line);
      color:#4a514c;font-size:14px;transition:var(--ease)
    }
    .side-list a:last-child{border-bottom:0}
    .side-list a:hover{color:#657a21;padding-left:4px}
    .side-list b{color:var(--lime-dark);font-size:18px}
    .article-bottom{
      border-top:1px solid var(--line);
      padding-top:25px;margin-top:38px;
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap
    }
    .article-bottom a{font-size:14px;font-weight:700;text-decoration:none}
    .related-section{padding:0 0 90px}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:28px}
    .section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section-head h2{font-size:clamp(27px,3.2vw,38px);line-height:1.25;margin:7px 0 0;letter-spacing:-.035em}
    .section-intro{max-width:480px;color:var(--muted);font-size:15px;margin:0}
    .related-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .related-card{
      background:var(--warm);border:1px solid var(--line);border-radius:var(--radius-lg);
      padding:27px;transition:var(--ease)
    }
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c4d48b}
    .related-card.featured{background:var(--ink-soft);color:#fff;min-height:190px}
    .related-card h3{font-size:21px;line-height:1.45;margin:16px 0 9px}
    .related-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 18px}
    .featured p{color:#c9cec8}
    .card-link{display:inline-flex;align-items:center;gap:8px;color:#657a21;font-size:14px;font-weight:800}
    .featured .card-link{color:var(--lime)}
    .card-link b{font-size:19px;transition:var(--ease)}
    .card-link:hover b{transform:translateX(4px)}
    .site-footer{background:var(--ink);color:#fff;padding:62px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{max-width:330px;color:#aeb4ad;font-size:14px;line-height:1.8;margin:20px 0 0}
    .footer-title{font-size:14px;color:var(--lime);font-weight:800;margin-bottom:15px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#c8ccc7;font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      border-top:1px solid rgba(255,255,255,.12);
      color:#8d958e;font-size:12px;margin-top:42px;padding-top:20px
    }
    @media (max-width:992px){
      .navbar{gap:15px}
      .brand{min-width:220px}
      .nav-links a{padding-left:8px;padding-right:8px;font-size:13px}
      .nav-cta{display:none}
      .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:25px}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,680px)}
      .navbar{height:70px;justify-content:space-between}
      .brand{min-width:0}
      .brand-name{font-size:15px}
      .brand-sub{font-size:9px}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:70px;
        padding:12px;background:var(--ink-soft);border:1px solid rgba(255,255,255,.12);
        border-radius:14px;box-shadow:0 16px 35px rgba(0,0,0,.25);
        flex-direction:column;align-items:stretch;gap:2px
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .menu-toggle{display:block}
      .article-hero{padding:52px 0 58px}
      .article-layout{display:block;padding:42px 0 65px}
      .article-content{padding:27px 21px;border-radius:18px}
      .article-side{position:static;margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:15px}
      .side-card{margin:0}
      .related-section{padding-bottom:65px}
      .related-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:520px){
      .article-hero h1{font-size:34px}
      .article-summary{font-size:15px}
      .article-content h2{font-size:26px}
      .article-content h3{font-size:20px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .article-side{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:6px}
    }

/* roulang page: category1 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px);
    }
    .navbar{min-height:78px;display:flex;align-items:center;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:0 0 auto;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
      transform:rotate(-31deg);left:-7px;width:48px;
    }
    .brand-mark:before{top:11px}
    .brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}
    .brand-name{display:block;font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{display:block;font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{display:flex;align-items:center;gap:3px;flex:1;justify-content:center}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 10px;font-size:14px;
      transition:var(--ease);white-space:nowrap;
    }
    .nav-links a:after{
      content:"";position:absolute;left:10px;right:10px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent;
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px;
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:26px;padding:8px;line-height:1}
    .page-hero{
      position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:72px 0 78px;
    }
    .page-hero:before{
      content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(201,248,74,.18);
      border-radius:50%;right:-150px;top:-240px;
    }
    .page-hero:after{
      content:"";position:absolute;right:8%;bottom:-120px;width:440px;height:220px;
      border:1px solid rgba(119,112,167,.55);border-radius:50%;transform:rotate(-18deg);
    }
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:end}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#b5bbb4;font-size:13px;margin-bottom:22px}
    .breadcrumb span{color:var(--lime)}
    .eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.09em}
    .eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
    h1{font-size:clamp(37px,5vw,61px);line-height:1.18;letter-spacing:-.047em;margin:17px 0 20px}
    .hero-lead{max-width:700px;color:#cdd2cc;font-size:17px;line-height:1.9;margin:0}
    .hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
    .page-hero .btn-secondary{color:#eef2ec;border-color:#59605b}
    .page-hero .btn-secondary:hover{color:var(--lime);border-color:var(--lime)}
    .route-board{
      position:relative;border:1px solid rgba(255,255,255,.13);border-radius:var(--radius-lg);
      padding:22px;background:rgba(255,255,255,.045);overflow:hidden;
    }
    .route-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:28px 28px;mask-image:linear-gradient(to bottom,black,transparent)}
    .route-board > *{position:relative}
    .board-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#dfe4dc;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.11)}
    .status-dot{display:inline-block;width:8px;height:8px;background:var(--lime);border-radius:50%;margin-right:7px;box-shadow:0 0 0 5px rgba(201,248,74,.11)}
    .route-row{display:flex;gap:13px;align-items:center;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.09)}
    .route-row:last-child{border-bottom:0;padding-bottom:2px}
    .route-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(201,248,74,.14);color:var(--lime);font-weight:900}
    .route-row strong{display:block;font-size:14px;color:#fff}
    .route-row small{display:block;color:#abb1aa;font-size:12px;margin-top:2px}
    .section{padding:92px 0}
    .section-alt{background:var(--warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-kicker{font-size:12px;color:var(--violet);font-weight:800;letter-spacing:.1em}
    h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:510px;margin:0;color:var(--muted);font-size:15px}
    .text-link{display:inline-flex;align-items:center;gap:8px;color:#59643b;font-size:14px;font-weight:800;transition:var(--ease)}
    .text-link b{font-size:19px;transition:var(--ease)}
    .text-link:hover{color:var(--violet)}
    .text-link:hover b{transform:translateX(4px)}
    .entry-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:20px}
    .entry-feature{
      min-height:355px;position:relative;overflow:hidden;padding:34px;border-radius:var(--radius-lg);
      color:#fff;background:var(--ink-soft);box-shadow:var(--shadow);
    }
    .entry-feature:before{
      content:"";position:absolute;right:-44px;top:-50px;width:330px;height:330px;
      border:2px solid rgba(201,248,74,.55);border-radius:50%;
    }
    .entry-feature:after{
      content:"";position:absolute;right:42px;top:48px;width:160px;height:160px;
      border:1px solid rgba(255,255,255,.25);border-radius:50%;
      box-shadow:0 0 0 24px rgba(119,112,167,.16),0 0 0 49px rgba(201,248,74,.06);
    }
    .entry-feature > *{position:relative;z-index:1}
    .tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:6px;background:var(--lime);color:#1e281a;font-size:12px;font-weight:800}
    .entry-feature h3{font-size:29px;line-height:1.32;max-width:490px;margin:19px 0 13px;letter-spacing:-.03em}
    .entry-feature p{max-width:480px;color:#c8cec7;margin:0 0 22px}
    .entry-list{display:grid;gap:14px}
    .entry-card{
      display:flex;align-items:center;gap:17px;min-height:108px;padding:20px;
      background:var(--warm);border:1px solid var(--line);border-radius:var(--radius-md);
      transition:var(--ease);
    }
    .entry-card:hover{border-color:var(--lime-dark);transform:translateX(4px);box-shadow:0 12px 28px rgba(22,27,24,.07)}
    .entry-number{font-size:13px;font-weight:900;color:var(--violet);min-width:28px}
    .entry-card h3{font-size:17px;margin:0 0 3px;line-height:1.4}
    .entry-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}
    .entry-arrow{margin-left:auto;font-size:22px;color:#66703d;transition:var(--ease)}
    .entry-card:hover .entry-arrow{transform:translateX(4px);color:var(--violet)}
    .path-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:58px;align-items:center}
    .path-copy p{color:var(--muted);margin:18px 0 25px}
    .note-card{padding:18px 19px;background:var(--violet-soft);border-left:4px solid var(--violet);border-radius:0 var(--radius-md) var(--radius-md) 0;color:#45415f;font-size:14px}
    .step-list{position:relative;display:grid;gap:0}
    .step-list:before{content:"";position:absolute;left:21px;top:24px;bottom:24px;width:1px;background:var(--line)}
    .step{position:relative;display:grid;grid-template-columns:44px 1fr;gap:18px;padding:0 0 26px}
    .step:last-child{padding-bottom:0}
    .step-index{
      width:44px;height:44px;display:grid;place-items:center;border-radius:13px;
      background:var(--ink);color:var(--lime);font-size:13px;font-weight:900;z-index:1;
    }
    .step-body{padding:4px 0}
    .step-body h3{font-size:19px;line-height:1.4;margin:0 0 5px}
    .step-body p{margin:0;color:var(--muted);font-size:15px}
    .guide-panel{
      background:#e9e8f4;border:1px solid #d7d5e7;border-radius:var(--radius-lg);
      padding:40px;position:relative;overflow:hidden;
    }
    .guide-panel:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(119,112,167,.36);border-radius:50%;right:-82px;bottom:-110px}
    .guide-panel > *{position:relative;z-index:1}
    .guide-panel h2{max-width:610px}
    .guide-panel p{max-width:690px;color:#5e5b75;margin:16px 0 25px}
    .guide-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
    .guide-tags span{padding:8px 12px;background:rgba(255,255,255,.7);border:1px solid rgba(119,112,167,.2);border-radius:8px;color:#4e4b66;font-size:13px;font-weight:700}
    .app-panel{
      overflow:hidden;display:grid;grid-template-columns:1.05fr .95fr;background:var(--ink);color:#fff;
      border:0;border-radius:var(--radius-lg);
    }
    .app-copy{padding:47px}
    .app-copy .section-kicker{color:var(--lime)}
    .app-copy h2{margin-top:8px;max-width:500px}
    .app-copy p{color:#c5cbc3;max-width:515px;margin:17px 0 26px}
    .app-meta{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:27px}
    .app-meta span{font-size:12px;padding:5px 9px;border:1px solid rgba(255,255,255,.16);border-radius:7px;color:#cbd0ca}
    .device-area{min-height:348px;position:relative;overflow:hidden;background:#30343a}
    .device-area:before{content:"";position:absolute;width:430px;height:430px;border-radius:50%;background:rgba(201,248,74,.13);right:-120px;top:-77px}
    .device-area:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:30px 30px}
    .phone{
      position:absolute;z-index:1;width:186px;height:326px;bottom:-22px;left:50%;transform:translateX(-50%) rotate(8deg);
      border:8px solid #111315;border-radius:27px;background:#f7f8f4;box-shadow:0 22px 35px rgba(0,0,0,.32);padding:16px 12px;
    }
    .phone:before{content:"";position:absolute;width:65px;height:8px;background:#111315;border-radius:0 0 8px 8px;left:50%;top:0;transform:translateX(-50%)}
    .phone-head{height:45px;border-radius:10px;background:var(--ink);padding:11px;color:var(--lime);font-size:9px;font-weight:900}
    .phone-line{height:9px;background:#daddd6;border-radius:5px;margin:12px 0 0}
    .phone-line.short{width:67%}
    .phone-block{height:92px;background:var(--violet-soft);border-radius:10px;margin-top:14px;position:relative;overflow:hidden}
    .phone-block:after{content:"";position:absolute;width:86px;height:86px;border:2px solid var(--lime-dark);border-radius:50%;right:-20px;top:13px}
    .phone-pill{height:27px;border-radius:8px;background:var(--lime);margin-top:13px}
    .faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:52px;align-items:start}
    .faq-aside{position:sticky;top:110px}
    .faq-aside p{color:var(--muted);margin:17px 0 24px}
    .faq-box{overflow:hidden;border-radius:var(--radius-md);background:var(--warm)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding:20px 22px;background:transparent;color:var(--ink);font-weight:800;text-align:left;
    }
    .faq-question span:last-child{color:var(--violet);font-size:23px;line-height:1;transition:var(--ease)}
    .faq-answer{display:none;padding:0 22px 21px;color:var(--muted);font-size:15px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:#4e5e25}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--lime-dark)}
    .seo-strip{padding:27px 30px;background:#f0f1ed;border-radius:var(--radius-md)}
    .seo-strip strong{display:block;font-size:17px;margin-bottom:7px}
    .seo-strip p{margin:0;color:var(--muted);font-size:14px}
    .site-footer{background:var(--ink);color:#d0d5cf;padding:66px 0 24px;position:relative;overflow:hidden}
    .site-footer:before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:rgba(201,248,74,.42)}
    .footer-grid{display:grid;grid-template-columns:1.65fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .brand{min-width:0;width:max-content}
    .footer-brand p{max-width:360px;color:#aeb4ad;font-size:14px;line-height:1.8;margin:19px 0 0}
    .footer-title{font-weight:800;color:#fff;font-size:14px;margin:6px 0 16px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{font-size:14px;color:#aeb4ad;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#858c85;font-size:12px}
    @media (max-width:1100px){
      .navbar{gap:13px}.brand{min-width:208px}.nav-links a{padding:10px 7px;font-size:13px}
      .hero-inner{gap:32px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{display:none}
    }
    @media (max-width:900px){
      .nav-links{display:none;position:absolute;top:78px;left:0;right:0;padding:15px 24px 20px;background:var(--ink);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 16px 25px rgba(0,0,0,.18);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:11px 4px}.nav-links a:after{left:4px;right:auto;width:28px}
      .menu-toggle{display:block;margin-left:auto}.nav-cta{display:none}
      .hero-inner,.entry-grid,.path-wrap,.app-panel,.faq-layout{grid-template-columns:1fr}
      .route-board{max-width:650px}.faq-aside{position:static}.section{padding:72px 0}
      .app-copy{padding:38px}.device-area{min-height:300px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media (max-width:640px){
      body{font-size:15px}.container{width:min(100% - 32px,1200px)}.navbar{min-height:68px}
      .brand{min-width:0}.brand-name{font-size:15px}.brand-sub{font-size:9px}
      .page-hero{padding:48px 0 55px}h1{font-size:34px}.hero-lead{font-size:15px}.hero-buttons .btn{width:100%}
      .section{padding:60px 0}.section-head{display:block;margin-bottom:25px}.section-intro{margin-top:14px}
      .entry-feature{padding:26px;min-height:335px}.entry-feature h3{font-size:25px}
      .entry-card{padding:17px 15px;gap:12px}.entry-card h3{font-size:16px}
      .guide-panel{padding:28px 23px}.app-copy{padding:30px 24px}.device-area{min-height:270px}
      .phone{width:164px;height:289px}.faq-question{padding:18px 17px}.faq-answer{padding:0 17px 18px}
      .seo-strip{padding:23px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
      .footer-bottom{margin-top:36px;display:block}.footer-bottom span{display:block;margin:5px 0}
    }
    @media (max-width:420px){
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .route-board{padding:17px}.route-row{gap:10px}.step{gap:13px}.step-index{width:39px;height:39px}.step-list:before{left:19px}
    }

/* roulang page: category2 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(14px);
    }
    .navbar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:30px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:245px;
      color:#fff;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border:2px solid var(--lime);
      border-radius:12px;
      position:relative;
      overflow:hidden;
      transform:rotate(-8deg);
      flex:0 0 auto;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";
      position:absolute;
      height:3px;
      background:var(--lime);
      border-radius:3px;
      transform:rotate(-31deg);
      left:-7px;
      width:48px;
    }
    .brand-mark:before{top:11px}
    .brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      flex:1;
    }
    .nav-links a{
      position:relative;
      color:#c8ccc7;
      padding:10px 12px;
      font-size:14px;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      bottom:1px;
      height:2px;
      background:var(--lime);
      transform:scaleX(0);
      transform-origin:left;
      transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      padding:0 19px;
      border-radius:11px;
      font-weight:700;
      font-size:14px;
      transition:var(--ease);
      border:1px solid transparent;
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{
      background:#dcff70;
      transform:translateY(-2px);
      box-shadow:0 10px 22px rgba(201,248,74,.2);
    }
    .btn-secondary{
      background:transparent;
      color:var(--ink);
      border-color:#bfc4ba;
    }
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);
      outline-offset:3px;
    }
    .menu-toggle{
      display:none;
      background:none;
      color:#fff;
      font-size:25px;
      padding:8px;
    }

    .page-hero{
      position:relative;
      overflow:hidden;
      background:var(--ink);
      color:#fff;
      padding:70px 0 76px;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      width:680px;
      height:680px;
      border:1px solid rgba(201,248,74,.18);
      border-radius:50%;
      right:-190px;
      top:-315px;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      width:430px;
      height:430px;
      border:1px solid rgba(119,112,167,.36);
      border-radius:50%;
      right:110px;
      bottom:-310px;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.03fr .97fr;
      gap:72px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      color:#9fa69f;
      font-size:13px;
      margin-bottom:22px;
    }
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb strong{color:#dce2d8;font-weight:600}
    .eyebrow{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--lime);
      font-size:13px;
      font-weight:700;
      letter-spacing:.08em;
    }
    .eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
    .page-hero h1{
      font-size:clamp(36px,5vw,60px);
      line-height:1.18;
      letter-spacing:-.045em;
      margin:17px 0 22px;
      max-width:700px;
    }
    .page-hero h1 span{color:var(--lime)}
    .hero-copy{
      max-width:630px;
      color:#c9cec8;
      font-size:17px;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .page-hero .btn-secondary{border-color:#59605b;color:#eef2ec}
    .page-hero .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .orbit-board{
      position:relative;
      min-height:350px;
      border:1px solid rgba(255,255,255,.13);
      border-radius:28px;
      background:
        linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px),
        #272b30;
      background-size:34px 34px;
      overflow:hidden;
      box-shadow:0 24px 60px rgba(0,0,0,.2);
    }
    .orbit-board:before,.orbit-board:after{
      content:"";
      position:absolute;
      border:2px solid var(--lime);
      border-radius:50%;
      transform:rotate(-24deg);
    }
    .orbit-board:before{
      width:440px;height:180px;left:-55px;top:62px;
      opacity:.9;
    }
    .orbit-board:after{
      width:370px;height:150px;right:-90px;bottom:42px;
      border-color:var(--violet);
      opacity:.75;
    }
    .board-label{
      position:absolute;
      top:24px;
      left:25px;
      color:#aeb4ad;
      font-size:12px;
      letter-spacing:.12em;
    }
    .board-title{
      position:absolute;
      top:55px;
      left:25px;
      font-size:24px;
      font-weight:800;
      color:#fff;
    }
    .board-lines{
      position:absolute;
      left:25px;
      right:25px;
      bottom:27px;
      z-index:2;
    }
    .board-line{
      display:flex;
      justify-content:space-between;
      gap:15px;
      padding:10px 0;
      border-top:1px solid rgba(255,255,255,.13);
      color:#d8ddd6;
      font-size:13px;
    }
    .board-line b{color:var(--lime);font-weight:700}
    .round-marker{
      position:absolute;
      right:36px;
      top:112px;
      width:74px;
      height:74px;
      border:10px solid var(--lime);
      border-left-color:transparent;
      border-radius:50%;
      transform:rotate(28deg);
      z-index:2;
    }
    .round-marker:after{
      content:"";
      position:absolute;
      width:13px;
      height:13px;
      border-radius:50%;
      background:var(--lime);
      right:-8px;
      top:17px;
    }

    .section{padding:92px 0}
    .section-light{background:var(--warm)}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:25px;
      margin-bottom:32px;
    }
    .section-kicker{
      color:var(--violet);
      font-size:12px;
      font-weight:800;
      letter-spacing:.1em;
    }
    .section h2{
      font-size:clamp(28px,3.2vw,40px);
      line-height:1.25;
      letter-spacing:-.035em;
      margin:8px 0 0;
    }
    .section-intro{
      max-width:505px;
      color:var(--muted);
      font-size:15px;
      margin:0;
    }
    .split-section{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:62px;
      align-items:start;
    }
    .intro-panel{
      position:relative;
      padding:32px;
      min-height:340px;
      border-radius:var(--radius-lg);
      background:var(--ink-soft);
      color:#fff;
      overflow:hidden;
    }
    .intro-panel:after{
      content:"";
      position:absolute;
      width:230px;
      height:230px;
      border:1px solid rgba(201,248,74,.35);
      border-radius:50%;
      right:-55px;
      bottom:-78px;
    }
    .intro-panel h3{
      position:relative;
      z-index:1;
      font-size:26px;
      line-height:1.35;
      margin:0 0 18px;
      max-width:330px;
    }
    .intro-panel p{
      position:relative;
      z-index:1;
      color:#cbd0c9;
      font-size:15px;
      line-height:1.9;
      margin:0;
    }
    .signal-list{margin-top:28px;position:relative;z-index:1}
    .signal{
      display:flex;
      align-items:center;
      gap:12px;
      color:#e7ebe4;
      font-size:14px;
      padding:10px 0;
      border-top:1px solid rgba(255,255,255,.1);
    }
    .signal-dot{
      width:8px;height:8px;border-radius:50%;background:var(--lime);
      box-shadow:0 0 0 5px rgba(201,248,74,.1);
    }
    .content-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .content-card{
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      padding:25px;
      transition:var(--ease);
    }
    .content-card:hover{
      transform:translateY(-4px);
      border-color:#b8c68c;
      box-shadow:var(--shadow);
    }
    .card-icon{
      width:43px;height:43px;border-radius:12px;
      display:flex;align-items:center;justify-content:center;
      background:var(--violet-soft);
      color:var(--violet);
      font-weight:800;
      margin-bottom:20px;
    }
    .content-card:nth-child(2) .card-icon{background:#edf7d0;color:#638217}
    .content-card:nth-child(3) .card-icon{background:#fff1db;color:#a36d16}
    .content-card:nth-child(4) .card-icon{background:#fbe5e1;color:#ba5e50}
    .content-card h3{font-size:20px;margin:0 0 9px}
    .content-card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0}
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:20px;
      color:#59643b;
      font-size:14px;
      font-weight:800;
    }
    .card-link span{transition:var(--ease);font-size:18px}
    .card-link:hover{color:var(--violet)}
    .card-link:hover span{transform:translateX(4px)}

    .focus-area{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:20px;
    }
    .focus-card{
      min-height:360px;
      position:relative;
      overflow:hidden;
      padding:34px;
      color:#fff;
      border-radius:var(--radius-lg);
      background:#30343a;
    }
    .focus-card:before{
      content:"";
      position:absolute;
      width:580px;height:250px;
      border:2px solid var(--lime);
      border-radius:50%;
      left:-120px;top:54px;
      transform:rotate(-18deg);
    }
    .focus-card:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(125deg,transparent 35%,rgba(119,112,167,.36));
      pointer-events:none;
    }
    .focus-content{position:relative;z-index:1;max-width:480px}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:4px 10px;
      border-radius:6px;
      background:var(--lime);
      color:#1e281a;
      font-size:12px;
      font-weight:800;
    }
    .focus-card h3{
      font-size:30px;
      line-height:1.35;
      margin:22px 0 14px;
    }
    .focus-card p{color:#cdd2cc;font-size:15px;line-height:1.9;margin:0}
    .focus-card .card-link{color:var(--lime);margin-top:26px}
    .focus-side{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .side-item{
      flex:1;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      padding:22px 24px;
      transition:var(--ease);
    }
    .side-item:hover{border-color:var(--lime-dark);box-shadow:var(--shadow)}
    .side-meta{
      color:var(--violet);
      font-size:12px;
      font-weight:800;
      letter-spacing:.06em;
    }
    .side-item h3{font-size:18px;line-height:1.45;margin:9px 0 7px}
    .side-item p{color:var(--muted);font-size:13px;line-height:1.7;margin:0}
    .side-arrow{float:right;color:var(--lime-dark);font-size:21px;line-height:1}

    .route-band{
      background:var(--violet-soft);
      border-top:1px solid #e1e0f0;
      border-bottom:1px solid #e1e0f0;
      padding:42px 0;
    }
    .route-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:0;
    }
    .route-item{
      display:flex;
      align-items:flex-start;
      gap:16px;
      padding:8px 30px;
      border-right:1px solid rgba(119,112,167,.2);
    }
    .route-item:first-child{padding-left:0}
    .route-item:last-child{border-right:0}
    .route-number{
      color:var(--violet);
      font-size:28px;
      line-height:1;
      font-weight:900;
    }
    .route-item h3{font-size:17px;margin:0 0 4px}
    .route-item p{color:var(--muted);font-size:13px;line-height:1.65;margin:0}

    .app-cta{
      position:relative;
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr .75fr;
      gap:40px;
      align-items:center;
      background:var(--ink);
      border-radius:var(--radius-lg);
      color:#fff;
      padding:48px 54px;
    }
    .app-cta:before{
      content:"";
      position:absolute;
      width:480px;height:480px;
      border:1px solid rgba(201,248,74,.2);
      border-radius:50%;
      right:-160px;top:-220px;
    }
    .app-cta h2{position:relative;z-index:1;font-size:clamp(27px,3.3vw,39px);line-height:1.3;margin:10px 0 14px}
    .app-cta p{position:relative;z-index:1;color:#c8cec7;max-width:590px;margin:0;font-size:15px}
    .app-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .app-visual{
      position:relative;
      z-index:1;
      min-height:190px;
      display:flex;
      align-items:center;
      justify-content:center;
    }
    .device{
      width:154px;
      height:246px;
      border:7px solid #51565a;
      border-radius:25px;
      background:#eef5df;
      box-shadow:0 16px 30px rgba(0,0,0,.3);
      transform:rotate(8deg);
      padding:18px 12px;
      position:relative;
    }
    .device:before{
      content:"";
      display:block;
      width:48px;height:5px;
      border-radius:5px;
      background:#51565a;
      margin:0 auto 20px;
    }
    .device-screen{
      height:116px;
      border-radius:12px;
      background:
        linear-gradient(160deg,transparent 42%,rgba(119,112,167,.45) 43%,transparent 44%),
        linear-gradient(20deg,transparent 53%,var(--lime) 54%,transparent 56%),
        #292d32;
      position:relative;
      overflow:hidden;
    }
    .device-screen:after{
      content:"Dafabet";
      position:absolute;
      left:12px;bottom:10px;
      color:#fff;font-size:11px;font-weight:800;
    }
    .device-row{
      height:9px;background:#c5d3ad;border-radius:5px;margin-top:11px;
    }
    .device-row.short{width:64%}
    .app-note{
      position:absolute;
      right:11%;
      bottom:9px;
      padding:12px 15px;
      border-radius:12px;
      background:var(--lime);
      color:#1a2416;
      font-size:12px;
      font-weight:800;
      transform:rotate(-4deg);
    }

    .faq-layout{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:65px;
      align-items:start;
    }
    .faq-lead p{color:var(--muted);font-size:15px;line-height:1.9;margin:18px 0 0}
    .faq-box{
      overflow:hidden;
      box-shadow:0 8px 28px rgba(22,27,24,.04);
    }
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;
      background:var(--warm);
      color:var(--ink);
      text-align:left;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:20px;
      padding:20px 24px;
      font-weight:800;
      font-size:15px;
    }
    .faq-question:hover{color:#667c22}
    .faq-question .plus{
      color:var(--violet);
      font-size:23px;
      font-weight:400;
      transition:var(--ease);
    }
    .faq-answer{
      display:none;
      background:#fbfbf7;
      color:var(--muted);
      padding:0 24px 20px;
      font-size:14px;
      line-height:1.85;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .plus{transform:rotate(45deg);color:var(--lime-dark)}

    .bottom-cta{
      padding:78px 0;
      background:#e9eddc;
      border-top:1px solid #dfe6c7;
    }
    .bottom-cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:35px;
    }
    .bottom-cta h2{font-size:clamp(27px,3vw,38px);line-height:1.35;margin:0 0 10px}
    .bottom-cta p{color:var(--muted);margin:0;max-width:650px;font-size:15px}
    .bottom-cta .btn{flex:0 0 auto}

    .site-footer{
      background:var(--ink);
      color:#fff;
      padding:64px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .7fr .8fr .8fr;
      gap:40px;
      padding-bottom:48px;
    }
    .footer-brand .brand{margin-bottom:19px}
    .footer-brand p{max-width:350px;color:#aeb4ad;font-size:14px;line-height:1.85;margin:0}
    .footer-title{font-size:14px;color:#fff;font-weight:800;margin:5px 0 16px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{color:#aeb4ad;font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      border-top:1px solid rgba(255,255,255,.12);
      padding-top:19px;
      color:#858d85;
      font-size:12px;
    }

    @media (max-width:1100px){
      .navbar{gap:16px}
      .brand{min-width:220px}
      .nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a:after{left:8px;right:8px}
      .hero-inner{gap:42px}
      .footer-grid{grid-template-columns:1.2fr .8fr .8fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .navbar{min-height:70px}
      .brand{min-width:0;flex:1}
      .brand-name{font-size:15px}
      .brand-sub{font-size:9px}
      .nav-cta{display:none}
      .menu-toggle{display:block}
      .nav-links{
        display:none;
        position:absolute;
        left:16px;
        right:16px;
        top:70px;
        padding:12px;
        flex-direction:column;
        align-items:stretch;
        gap:2px;
        background:var(--ink-soft);
        border:1px solid rgba(255,255,255,.12);
        border-radius:14px;
        box-shadow:0 18px 35px rgba(0,0,0,.25);
      }
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links a:after{left:14px;right:auto;width:28px;bottom:5px}
      .page-hero{padding:48px 0 55px}
      .hero-inner,.split-section,.focus-area,.faq-layout,.app-cta{
        grid-template-columns:1fr;
        gap:30px;
      }
      .page-hero h1{font-size:38px}
      .hero-copy{font-size:15px}
      .orbit-board{min-height:290px}
      .section{padding:66px 0}
      .section-head{display:block;margin-bottom:24px}
      .section-intro{margin-top:15px}
      .content-grid{grid-template-columns:1fr}
      .intro-panel{min-height:290px}
      .focus-card{min-height:320px}
      .route-grid{grid-template-columns:1fr;gap:17px}
      .route-item,.route-item:first-child{
        padding:0 0 17px;
        border-right:0;
        border-bottom:1px solid rgba(119,112,167,.2);
      }
      .route-item:last-child{padding-bottom:0;border-bottom:0}
      .app-cta{padding:34px 25px}
      .app-visual{min-height:260px}
      .bottom-cta-inner{display:block}
      .bottom-cta .btn{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
      .footer-grid>div:last-child{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-mark{width:34px;height:34px}
      .brand-name{font-size:14px}
      .page-hero h1{font-size:32px}
      .hero-actions,.app-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn,.app-actions .btn{width:100%}
      .orbit-board{min-height:250px}
      .board-title{font-size:19px}
      .round-marker{right:25px;top:95px;transform:scale(.75) rotate(28deg)}
      .section h2{font-size:29px}
      .intro-panel,.focus-card{padding:25px}
      .focus-card h3{font-size:25px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
    }

/* roulang page: category3 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    a:hover{text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(14px);
    }
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:0 0 auto;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);
      border-radius:3px;transform:rotate(-31deg);left:-7px;width:48px;
    }
    .brand-mark:before{top:11px}
    .brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
      transition:var(--ease);white-space:nowrap;
    }
    .nav-links a:after{
      content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent;
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
    .page-hero{
      position:relative;
      overflow:hidden;
      background:var(--ink);
      color:#fff;
      padding:76px 0 84px;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      width:560px;height:560px;
      border:1px solid rgba(201,248,74,.2);
      border-radius:50%;
      right:-160px;top:-245px;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      width:330px;height:330px;
      border:1px solid rgba(119,112,167,.38);
      border-radius:50%;
      right:120px;bottom:-205px;
    }
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 430px;gap:70px;align-items:end}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:#aeb4ad;font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span{color:#667069}
    .eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
    .page-hero h1{
      font-size:clamp(36px,5vw,58px);
      line-height:1.18;
      letter-spacing:-.045em;
      margin:18px 0 20px;
      max-width:760px;
    }
    .page-hero h1 em{font-style:normal;color:var(--lime)}
    .hero-copy{max-width:680px;color:#c9cec8;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .page-hero .btn-secondary{border-color:#59605b;color:#eef2ec}
    .page-hero .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .update-board{
      position:relative;
      min-height:265px;
      border:1px solid rgba(255,255,255,.13);
      border-radius:22px;
      padding:25px;
      background:#25292d;
      box-shadow:0 22px 50px rgba(0,0,0,.2);
    }
    .update-board:before{
      content:"";
      position:absolute;inset:18px;
      background-image:linear-gradient(rgba(201,248,74,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(201,248,74,.12) 1px,transparent 1px);
      background-size:28px 28px;
      opacity:.34;
      pointer-events:none;
    }
    .board-content{position:relative;z-index:1}
    .board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}
    .board-label{font-size:12px;color:#b9c0b9;letter-spacing:.12em}
    .live-dot{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px}
    .live-dot i{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(201,248,74,.12)}
    .board-title{font-size:24px;font-weight:800;line-height:1.35;max-width:275px}
    .board-line{height:1px;background:rgba(255,255,255,.12);margin:22px 0}
    .board-meta{display:flex;justify-content:space-between;color:#aeb4ad;font-size:13px}
    .board-meta strong{color:#fff;font-weight:700}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:500px;color:var(--muted);font-size:15px}
    .anchor-strip{
      margin-top:-32px;
      position:relative;
      z-index:3;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:1px;
      background:var(--line);
      border:1px solid var(--line);
      border-radius:18px;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .anchor-item{background:var(--warm);padding:22px 24px;transition:var(--ease)}
    .anchor-item:hover{background:#f3f8dd}
    .anchor-index{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .anchor-item h3{font-size:18px;margin:7px 0 4px}
    .anchor-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
    .anchor-arrow{display:block;color:var(--lime-dark);font-size:22px;margin-top:9px}
    .timeline-layout{display:grid;grid-template-columns:280px 1fr;gap:70px}
    .side-note{
      padding:25px 0 0 25px;
      border-left:3px solid var(--lime);
      height:max-content;
    }
    .side-note h3{font-size:23px;line-height:1.35;margin:0 0 13px}
    .side-note p{color:var(--muted);font-size:15px;margin:0}
    .timeline{position:relative}
    .timeline:before{
      content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;background:var(--line)
    }
    .timeline-item{position:relative;display:grid;grid-template-columns:20px 1fr;gap:22px;padding-bottom:27px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-point{width:19px;height:19px;border:5px solid var(--paper);border-radius:50%;background:var(--violet);box-shadow:0 0 0 1px var(--violet);margin-top:6px;z-index:1}
    .timeline-item:first-child .timeline-point{background:var(--lime);box-shadow:0 0 0 1px var(--lime-dark)}
    .timeline-card{
      background:var(--warm);
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      padding:22px 25px;
      transition:var(--ease);
    }
    .timeline-card:hover{transform:translateX(4px);border-color:#bfcf83;box-shadow:var(--shadow)}
    .timeline-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin-bottom:8px}
    .tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:6px;background:var(--lime);color:#1e281a;font-size:11px;font-weight:800}
    .tag.violet{background:var(--violet-soft);color:#5b557e}
    .tag.amber{background:#fff1c9;color:#80611f}
    .timeline-card h3{font-size:21px;line-height:1.4;margin:0 0 8px}
    .timeline-card p{color:var(--muted);font-size:14px;margin:0;max-width:680px}
    .text-link{display:inline-flex;align-items:center;gap:8px;color:#59643b;font-weight:700;font-size:14px;white-space:nowrap}
    .text-link:hover{color:var(--violet)}
    .text-link b{font-size:19px;transition:var(--ease)}
    .text-link:hover b{transform:translateX(4px)}
    .topic-section{background:var(--warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .topic-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .topic-main,.topic-side{border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;background:var(--paper)}
    .topic-main{min-height:310px;position:relative;overflow:hidden}
    .topic-main:after{
      content:"";
      position:absolute;
      width:230px;height:230px;
      border:1px solid rgba(119,112,167,.3);
      border-radius:50%;
      right:-70px;bottom:-85px;
    }
    .topic-main h3,.topic-side h3{font-size:25px;line-height:1.35;margin:12px 0}
    .topic-main p,.topic-side p{color:var(--muted);font-size:15px;max-width:600px}
    .topic-side{background:var(--violet-soft);border-color:#d9d6ed}
    .topic-list{list-style:none;padding:0;margin:20px 0 0}
    .topic-list li{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid rgba(119,112,167,.2);padding:13px 0;font-size:14px}
    .topic-list li span{color:#615c84}
    .topic-list li b{color:var(--violet);font-size:18px}
    .access-section{padding-top:0}
    .access-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:30px;
      align-items:center;
      padding:38px;
      border-radius:var(--radius-lg);
      background:var(--ink-soft);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .access-panel:before{
      content:"";
      position:absolute;
      width:480px;height:480px;
      border:1px solid rgba(201,248,74,.18);
      border-radius:50%;
      right:-170px;top:-180px;
    }
    .access-content{position:relative;z-index:1}
    .access-content h2{font-size:clamp(27px,3vw,38px);line-height:1.3;margin:10px 0 14px}
    .access-content p{color:#c9cec8;max-width:560px;margin:0}
    .access-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .access-visual{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;min-height:180px}
    .device-card{
      width:225px;height:142px;border:1px solid rgba(255,255,255,.2);
      border-radius:18px;background:#343a40;transform:rotate(5deg);
      padding:18px;box-shadow:18px 20px 0 rgba(119,112,167,.35);
    }
    .device-card .device-bar{height:7px;width:65px;background:var(--lime);border-radius:5px;margin-bottom:20px}
    .device-card .device-row{height:10px;background:rgba(255,255,255,.16);border-radius:5px;margin:11px 0}
    .device-card .device-row.short{width:62%}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:start}
    .faq-intro h2{font-size:clamp(28px,3.2vw,40px);line-height:1.3;margin:8px 0 15px}
    .faq-intro p{color:var(--muted);margin:0}
    .faq-box{overflow:hidden}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;display:flex;justify-content:space-between;align-items:center;
      text-align:left;background:var(--warm);color:var(--ink);padding:20px 23px;
      font-weight:700;font-size:16px;transition:var(--ease)
    }
    .faq-question:hover{background:#f8faef}
    .faq-question span:last-child{color:var(--violet);font-size:23px;font-weight:400;line-height:1}
    .faq-answer{padding:0 23px 20px;color:var(--muted);font-size:14px;line-height:1.8}
    .seo-strip{padding:25px 30px;background:#eef2e6;border-color:#dbe4c6}
    .seo-strip p{margin:0;color:#5c6558;font-size:14px;line-height:1.9}
    .cta-section{padding:0 0 90px}
    .cta-card{
      display:flex;align-items:center;justify-content:space-between;gap:25px;
      padding:32px 36px;border-radius:var(--radius-lg);background:var(--lime);
      color:#1d281b;
    }
    .cta-card h2{font-size:28px;line-height:1.35;margin:0 0 6px}
    .cta-card p{margin:0;color:#526047;font-size:14px}
    .cta-card .btn-dark{min-width:145px}
    .site-footer{background:var(--ink);color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
    .footer-brand p{color:#aeb4ad;max-width:330px;font-size:14px;margin:20px 0 0}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{font-size:14px;color:#c8ccc7;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.1);
      padding-top:20px;display:flex;justify-content:space-between;gap:20px;
      color:#858d86;font-size:12px;flex-wrap:wrap
    }
    @media (max-width:1100px){
      .navbar{gap:15px}
      .brand{min-width:215px}
      .nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a:after{left:8px;right:8px}
      .hero-inner{gap:40px}
    }
    @media (max-width:900px){
      .nav-links{display:none}
      .nav-cta{margin-left:auto}
      .menu-toggle{display:block}
      .hero-inner,.timeline-layout,.faq-wrap{grid-template-columns:1fr}
      .hero-inner{gap:38px}
      .update-board{max-width:520px}
      .anchor-strip{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{display:none}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,1200px)}
      .navbar{height:70px}
      .brand-name{font-size:15px}
      .brand-sub{font-size:9px}
      .brand{min-width:0}
      .nav-cta .btn{min-height:42px;padding:0 13px;font-size:13px}
      .page-hero{padding:55px 0 68px}
      .page-hero h1{font-size:clamp(33px,9vw,46px)}
      .section{padding:65px 0}
      .section-head{display:block}
      .section-intro{margin-top:15px}
      .anchor-strip{margin-top:-25px}
      .topic-grid,.access-panel{grid-template-columns:1fr}
      .access-panel{padding:28px}
      .access-visual{min-height:145px}
      .cta-card{display:block;padding:27px}
      .cta-card .btn{margin-top:20px}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-mark{width:34px;height:34px}
      .brand-sub{display:none}
      .nav-cta{display:none}
      .page-hero{padding:42px 0 56px}
      .hero-copy{font-size:15px}
      .hero-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn{width:100%}
      .anchor-strip{grid-template-columns:1fr}
      .anchor-item{padding:18px 20px}
      .timeline-layout{gap:35px}
      .timeline-card{padding:19px}
      .timeline-card h3{font-size:18px}
      .topic-main,.topic-side{padding:23px}
      .access-panel{padding:24px 20px}
      .device-card{transform:rotate(4deg) scale(.9)}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }

/* roulang page: category4 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px)
    }
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:0 0 auto
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
      transform:rotate(-31deg);left:-7px;width:48px
    }
    .brand-mark:before{top:11px}.brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.06em}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
      transition:var(--ease);white-space:nowrap
    }
    .nav-links a:after{
      content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
    .page-hero{
      position:relative;overflow:hidden;background:var(--ink);color:#fff;
      padding:76px 0 88px
    }
    .page-hero:before{
      content:"";position:absolute;width:650px;height:650px;border:1px solid rgba(201,248,74,.18);
      border-radius:50%;right:-170px;top:-280px
    }
    .page-hero:after{
      content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(119,112,167,.4);
      border-radius:50%;right:90px;top:-120px
    }
    .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:70px;align-items:center}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:#aeb4ad;font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--lime)}
    .eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
    h1{font-size:clamp(36px,5vw,60px);line-height:1.18;letter-spacing:-.045em;margin:18px 0 22px}
    h1 span{color:var(--lime)}
    .hero-copy{max-width:650px;color:#c9cec8;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .page-hero .btn-secondary{border-color:#59605b;color:#eef2ec}
    .page-hero .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .device-stage{min-height:360px;position:relative;display:flex;justify-content:center;align-items:center}
    .device-glow{position:absolute;width:300px;height:300px;background:var(--violet);opacity:.3;filter:blur(58px);border-radius:50%}
    .phone{
      position:relative;width:190px;height:350px;border:8px solid #111418;border-radius:30px;
      background:#f8faf4;box-shadow:0 25px 50px rgba(0,0,0,.35);transform:rotate(7deg);z-index:2
    }
    .phone:before{content:"";position:absolute;width:68px;height:14px;background:#111418;border-radius:0 0 12px 12px;left:53px;top:-8px}
    .phone-screen{padding:24px 15px;color:var(--ink)}
    .screen-top{height:12px;width:82px;background:var(--ink);border-radius:10px;margin:18px 0 18px}
    .screen-card{height:82px;background:var(--ink-soft);border-radius:15px;padding:13px;color:#fff}
    .screen-card b{display:block;font-size:17px;color:var(--lime);line-height:1.2}
    .screen-card small{font-size:10px;color:#ccd1ca}
    .screen-line{height:9px;background:#dfe4db;border-radius:8px;margin-top:16px}
    .screen-line.short{width:62%}
    .screen-nav{position:absolute;bottom:17px;left:17px;right:17px;display:flex;justify-content:space-around}
    .screen-nav i{width:19px;height:5px;border-radius:5px;background:#c6cdc2}
    .screen-nav i:first-child{background:var(--lime-dark)}
    .signal-tag{
      position:absolute;right:4%;bottom:38px;background:var(--lime);color:#1c2318;
      padding:13px 17px;border-radius:13px;font-weight:800;font-size:14px;transform:rotate(-4deg);z-index:3
    }
    .section{padding:88px 0}
    .section.alt{background:var(--warm)}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:510px;color:var(--muted);font-size:15px}
    .download-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .download-card,.info-card,.step-card,.faq-box,.cta-panel{
      border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--warm)
    }
    .download-card{padding:34px;box-shadow:var(--shadow)}
    .download-card h3,.info-card h3{font-size:24px;margin:0 0 12px}
    .download-card p,.info-card p{color:var(--muted);margin:0}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
    .download-note{display:flex;gap:10px;align-items:flex-start;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
    .download-note b{color:var(--lime-dark);font-size:18px;line-height:1}
    .info-stack{display:grid;gap:20px}
    .info-card{padding:28px;background:var(--violet-soft)}
    .info-card.dark{background:var(--ink-soft);color:#fff;border-color:var(--ink-soft)}
    .info-card.dark p{color:#c7ccc5}
    .meta-list{display:grid;gap:13px;margin-top:20px}
    .meta-row{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(119,112,167,.25);padding-top:10px;font-size:14px}
    .dark .meta-row{border-color:rgba(255,255,255,.12)}
    .meta-row span:first-child{color:var(--muted)}.dark .meta-row span:first-child{color:#aeb4ad}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step-card{padding:28px;position:relative}
    .step-number{
      width:42px;height:42px;display:grid;place-items:center;border-radius:12px;
      background:var(--ink);color:var(--lime);font-weight:800;margin-bottom:23px
    }
    .step-card h3{font-size:19px;margin:0 0 10px}.step-card p{color:var(--muted);font-size:14px;margin:0}
    .step-card:after{content:"";position:absolute;right:24px;top:43px;width:30px;height:1px;background:var(--line)}
    .step-card:last-child:after{display:none}
    .compat-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;align-items:stretch}
    .compat-intro{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:34px}
    .compat-intro h3{font-size:27px;line-height:1.35;margin:0 0 15px}.compat-intro p{color:#c7ccc5}
    .compat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .compat-item{background:var(--warm);border:1px solid var(--line);border-radius:var(--radius-md);padding:22px}
    .compat-icon{color:var(--violet);font-weight:800;font-size:23px}.compat-item h3{font-size:17px;margin:9px 0 4px}.compat-item p{margin:0;color:var(--muted);font-size:13px}
    .faq-box{overflow:hidden}
    .faq-item{border-bottom:1px solid var(--line)}.faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;background:var(--warm);display:flex;justify-content:space-between;align-items:center;
      text-align:left;padding:21px 24px;font-weight:700;color:var(--ink);transition:var(--ease)
    }
    .faq-question:hover{background:#f4f7e9}.faq-question .plus{font-size:24px;color:var(--violet);transition:var(--ease)}
    .faq-answer{display:none;padding:0 24px 21px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}.faq-item.open .plus{transform:rotate(45deg);color:var(--lime-dark)}
    .cta-panel{
      background:var(--ink-soft);color:#fff;padding:42px 48px;display:flex;justify-content:space-between;
      gap:30px;align-items:center;position:relative;overflow:hidden
    }
    .cta-panel:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(201,248,74,.25);border-radius:50%;right:-70px;top:-90px}
    .cta-panel h2{position:relative;z-index:1;margin:0;font-size:32px}.cta-panel p{position:relative;z-index:1;color:#c7ccc5;margin:9px 0 0}
    .cta-panel .btn{position:relative;z-index:1;flex:0 0 auto}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 22px;border-top:1px solid #343a3c}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{max-width:330px;color:#aeb4ad;font-size:14px;margin:18px 0 0}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:15px}
    .footer-links{display:grid;gap:9px}.footer-links a{color:#c8ccc7;font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;color:#858d86;font-size:12px}
    @media(max-width:992px){
      .navbar{gap:15px}.brand{min-width:210px}.nav-links a{padding:10px 7px;font-size:13px}
      .hero-layout,.download-grid,.compat-grid{grid-template-columns:1fr;gap:36px}.page-hero{padding:58px 0 68px}
      .device-stage{min-height:310px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{display:none}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}.navbar{height:70px;justify-content:space-between}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--ink-soft);
        padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
      }
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-links a:after{left:14px;right:auto;width:28px}
      .nav-cta{display:none}.menu-toggle{display:block}.brand{min-width:0}.brand-name{font-size:15px}.brand-sub{font-size:9px}
      .section{padding:66px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .steps{grid-template-columns:1fr}.step-card:after{display:none}.compat-list{grid-template-columns:1fr}
      .cta-panel{display:block;padding:32px 25px}.cta-panel .btn{margin-top:24px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
      .download-card,.info-card,.step-card{padding:24px}.phone{transform:rotate(4deg) scale(.88)}
      .signal-tag{right:0;bottom:22px}.footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category6 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px)
    }
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:0 0 auto
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
      transform:rotate(-31deg);left:-7px;width:48px
    }
    .brand-mark:before{top:11px}.brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
      transition:var(--ease);white-space:nowrap
    }
    .nav-links a:after{
      content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
    .page-hero{
      background:var(--ink);color:#fff;padding:66px 0 78px;position:relative;overflow:hidden
    }
    .page-hero:before,.page-hero:after{
      content:"";position:absolute;border:1px solid rgba(201,248,74,.2);border-radius:50%;pointer-events:none
    }
    .page-hero:before{width:580px;height:580px;right:-180px;top:-260px}
    .page-hero:after{width:350px;height:350px;right:80px;top:-130px;border-color:rgba(119,112,167,.45)}
    .breadcrumb{position:relative;z-index:1;color:#aeb4ad;font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span{color:var(--lime);margin:0 8px}
    .page-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:end}
    .eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow i{display:inline-block;width:26px;height:2px;background:var(--lime)}
    h1{font-size:clamp(36px,5vw,60px);line-height:1.2;letter-spacing:-.045em;margin:18px 0 20px}
    .page-hero-copy{max-width:690px;color:#c9cec8;font-size:17px;line-height:1.9;margin:0}
    .hero-index{
      border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:25px;
      background:rgba(255,255,255,.045);position:relative
    }
    .hero-index:before{content:"";display:block;width:76px;height:4px;background:var(--lime);margin-bottom:24px}
    .hero-index h2{font-size:22px;margin:0 0 12px}
    .hero-index p{color:#aeb4ad;margin:0;font-size:14px}
    .section{padding:88px 0}
    .section.alt{background:var(--warm)}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:520px;color:var(--muted);font-size:15px;margin:0}
    .index-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
    .index-panel,.side-panel,.guide-card,.faq-box,.cta-panel{
      border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--warm)
    }
    .index-panel{padding:34px;box-shadow:var(--shadow)}
    .index-panel h3{font-size:25px;margin:0 0 12px}
    .index-panel>p{color:var(--muted);max-width:710px;margin:0 0 26px}
    .entry-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .entry{
      display:flex;align-items:center;justify-content:space-between;gap:15px;
      padding:17px 18px;border:1px solid var(--line);border-radius:13px;background:#fff;
      transition:var(--ease)
    }
    .entry:hover{border-color:var(--lime-dark);transform:translateY(-3px);box-shadow:0 10px 24px rgba(23,25,28,.07)}
    .entry strong{font-size:15px}.entry small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .entry b{color:var(--violet);font-size:21px;font-weight:500;transition:var(--ease)}
    .entry:hover b{color:var(--ink);transform:translateX(4px)}
    .side-panel{padding:30px;background:var(--ink-soft);color:#fff}
    .side-panel .panel-label{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.08em}
    .side-panel h3{font-size:24px;line-height:1.35;margin:13px 0}
    .side-panel p{color:#bfc5bf;font-size:14px;margin:0 0 22px}
    .status-line{display:flex;gap:11px;padding:14px 0;border-top:1px solid rgba(255,255,255,.12);font-size:14px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--lime);margin-top:9px;flex:0 0 auto}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .guide-card{padding:27px 25px;transition:var(--ease)}
    .guide-card:hover{border-color:var(--lime-dark);transform:translateY(-4px);box-shadow:var(--shadow)}
    .guide-number{
      width:36px;height:36px;display:flex;align-items:center;justify-content:center;
      border-radius:10px;background:var(--violet-soft);color:var(--violet);
      font-weight:800;margin-bottom:19px
    }
    .guide-card h3{font-size:19px;margin:0 0 8px}
    .guide-card p{color:var(--muted);font-size:14px;margin:0}
    .guide-card a{display:inline-flex;align-items:center;gap:7px;color:#59643b;font-size:14px;font-weight:700;margin-top:20px}
    .guide-card a:hover{color:var(--violet)}
    .guide-card a b{font-size:18px;transition:var(--ease)}
    .guide-card a:hover b{transform:translateX(4px)}
    .app-panel{
      display:grid;grid-template-columns:1fr .82fr;gap:36px;align-items:center;
      background:var(--ink-soft);color:#fff;padding:42px;overflow:hidden;position:relative
    }
    .app-panel:after{
      content:"";position:absolute;width:370px;height:370px;border:1px solid rgba(201,248,74,.22);
      border-radius:50%;right:-120px;top:-145px
    }
    .app-copy{position:relative;z-index:1}
    .app-copy .section-kicker{color:var(--lime)}
    .app-copy h2{margin:9px 0 14px}
    .app-copy p{color:#c3c9c2;max-width:590px;margin:0 0 23px}
    .app-actions{display:flex;gap:12px;flex-wrap:wrap}
    .app-note{font-size:12px;color:#9da59d;margin-top:14px}
    .device-area{position:relative;min-height:230px;display:flex;justify-content:center;align-items:center}
    .device{
      width:142px;height:246px;border:7px solid #101215;border-radius:27px;
      background:linear-gradient(145deg,#7770a7 0%,#37394a 54%,#c9f84a 100%);
      box-shadow:0 22px 35px rgba(0,0,0,.28);transform:rotate(8deg);position:relative;z-index:1
    }
    .device:before{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:45px;height:5px;border-radius:5px;background:#111}
    .device-screen{position:absolute;inset:38px 13px 16px;border:1px solid rgba(255,255,255,.35);border-radius:12px;padding:12px 9px}
    .device-line{height:7px;border-radius:5px;background:rgba(255,255,255,.8);margin-bottom:9px}
    .device-line.short{width:58%;background:var(--lime)}
    .device-score{height:62px;border-radius:9px;background:rgba(23,25,28,.48);margin-top:16px;padding:10px;color:#fff;font-size:10px}
    .device-orbit{
      position:absolute;width:280px;height:150px;border:1px solid rgba(201,248,74,.35);
      border-radius:50%;transform:rotate(-25deg)
    }
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:45px;align-items:start}
    .faq-intro h2{margin-bottom:15px}.faq-intro p{color:var(--muted);margin:0}
    .faq-box{overflow:hidden;background:#fff}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
      text-align:left;background:#fff;color:var(--ink);padding:20px 24px;font-weight:700;
      transition:var(--ease)
    }
    .faq-question:hover{background:#fbfcf7;color:#59643b}
    .faq-question span:last-child{font-size:24px;color:var(--violet);font-weight:400;transition:var(--ease)}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--lime-dark)}
    .faq-answer{display:none;padding:0 24px 21px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .cta-panel{
      background:var(--violet);color:#fff;padding:39px 44px;
      display:flex;align-items:center;justify-content:space-between;gap:25px
    }
    .cta-panel h2{margin:0 0 10px;color:#fff}
    .cta-panel p{margin:0;color:#e5e3f1;font-size:15px}
    .cta-panel .btn-primary{flex:0 0 auto}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;gap:35px;padding-bottom:42px}
    .footer-brand .brand{margin-bottom:18px}
    .footer-brand p{color:#aeb4ad;font-size:14px;max-width:365px;margin:0}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{font-size:14px;color:#b9c0b9;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
      display:flex;justify-content:space-between;gap:18px;color:#8f9890;font-size:12px
    }
    @media (max-width:1100px){
      .navbar{gap:14px}.brand{min-width:220px}.nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a:after{left:8px;right:8px}.page-hero-grid{gap:35px}
    }
    @media (max-width:900px){
      .nav-cta{display:none}.menu-toggle{display:block;margin-left:auto}
      .nav-links{
        display:none;position:absolute;left:24px;right:24px;top:78px;
        flex-direction:column;align-items:stretch;gap:0;padding:10px;
        background:var(--ink-soft);border:1px solid rgba(255,255,255,.12);border-radius:14px;
        box-shadow:0 18px 40px rgba(0,0,0,.25)
      }
      .nav-links.show{display:flex}
      .nav-links a{padding:13px 14px}.nav-links a:after{left:14px;right:auto;width:28px}
      .page-hero-grid,.index-layout,.faq-layout{grid-template-columns:1fr}
      .hero-index{max-width:600px}
      .index-layout{gap:18px}
      .app-panel{grid-template-columns:1fr}
      .device-area{min-height:260px}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media (max-width:768px){
      .container{width:min(100% - 36px,620px)}
      .navbar{height:70px}.nav-links{top:70px;left:18px;right:18px}
      .brand{min-width:0}.brand-name{font-size:15px}.brand-sub{font-size:9px}
      .brand-mark{width:34px;height:34px}
      .page-hero{padding:48px 0 58px}
      h1{font-size:38px}
      .section{padding:64px 0}
      .section-head{display:block;margin-bottom:25px}.section-intro{margin-top:12px}
      .entry-list,.guide-grid{grid-template-columns:1fr}
      .index-panel{padding:25px}.side-panel{padding:25px}
      .app-panel{padding:29px 24px}.cta-panel{display:block;padding:30px 25px}
      .cta-panel .btn{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:last-child{grid-column:auto}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }
    @media (max-width:520px){
      .container{width:calc(100% - 30px)}
      .brand-copy{max-width:190px}.brand-name{font-size:14px}.brand-sub{font-size:8px;letter-spacing:.03em}
      .page-hero-grid{gap:27px}.page-hero-copy{font-size:15px}
      h1{font-size:32px}
      .hero-index h2{font-size:20px}
      .section h2{font-size:29px}
      .app-actions,.app-actions .btn{width:100%}
      .app-actions .btn{min-height:48px}
      .device-area{transform:scale(.88);margin:-12px 0}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
    }

/* roulang page: category5 */
:root{
      --ink:#17191c;
      --ink-soft:#25292d;
      --lime:#c9f84a;
      --lime-dark:#9bc52a;
      --violet:#7770a7;
      --violet-soft:#eeeef8;
      --paper:#f6f7f3;
      --warm:#fffdf8;
      --line:#dedfd8;
      --muted:#737875;
      --muted-light:#aeb4ad;
      --coral:#ef806f;
      --amber:#efb84e;
      --white:#fff;
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --shadow:0 18px 48px rgba(22,27,24,.09);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--ink);background:var(--paper);
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(23,25,28,.96);
      border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px)
    }
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px;color:#fff}
    .brand-mark{
      width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
      position:relative;overflow:hidden;transform:rotate(-8deg);flex:0 0 auto
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;height:3px;background:var(--lime);border-radius:3px;
      transform:rotate(-31deg);left:-7px;width:48px
    }
    .brand-mark:before{top:11px}
    .brand-mark:after{top:23px;opacity:.5}
    .brand-copy{line-height:1.15}
    .brand-name{font-size:17px;font-weight:800;letter-spacing:.02em}
    .brand-sub{font-size:10px;color:#aeb4ad;margin-top:4px;letter-spacing:.08em}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      position:relative;color:#c8ccc7;padding:10px 12px;font-size:14px;
      transition:var(--ease);white-space:nowrap
    }
    .nav-links a:after{
      content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
      background:var(--lime);transform:scaleX(0);transform-origin:left;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--lime)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta{flex:0 0 auto}
    .btn{
      min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
      padding:0 19px;border-radius:11px;font-weight:700;font-size:14px;
      transition:var(--ease);border:1px solid transparent
    }
    .btn-primary{background:var(--lime);color:#182015}
    .btn-primary:hover{background:#dcff70;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,248,74,.2)}
    .btn-secondary{background:transparent;color:var(--ink);border-color:#bfc4ba}
    .btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
    .btn-dark{background:var(--ink-soft);color:#fff}
    .btn-dark:hover{background:#343a40;transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(201,248,74,.75);outline-offset:3px
    }
    .menu-toggle{display:none;background:none;color:#fff;font-size:25px;padding:8px}
    .page-hero{background:var(--ink);color:#fff;padding:70px 0 84px;position:relative;overflow:hidden}
    .page-hero:before{
      content:"";position:absolute;width:640px;height:640px;border:1px solid rgba(201,248,74,.18);
      border-radius:50%;right:-230px;top:-310px
    }
    .page-hero:after{
      content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(119,112,167,.35);
      border-radius:50%;right:80px;top:-175px
    }
    .page-hero-inner{position:relative;z-index:1}
    .breadcrumb-line{display:flex;align-items:center;gap:10px;color:#aeb4ad;font-size:13px;margin-bottom:25px}
    .breadcrumb-line a:hover{color:var(--lime)}
    .breadcrumb-line strong{color:var(--lime);font-weight:700}
    .page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-.045em;max-width:850px;margin:0 0 22px}
    .page-hero h1 span{color:var(--lime)}
    .page-hero-copy{max-width:730px;color:#c9cec8;font-size:17px;line-height:1.9;margin:0}
    .hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
    .hero-point{border:1px solid rgba(255,255,255,.16);border-radius:30px;padding:8px 14px;color:#e6ebe4;font-size:13px}
    .section{padding:88px 0}
    .section.alt{background:var(--warm)}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:510px;color:var(--muted);font-size:15px;margin:0}
    .guide-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .guide-main,.guide-aside,.step-card,.info-panel,.faq-box,.cta-panel{
      border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--warm)
    }
    .guide-main{padding:34px 36px}
    .guide-main h3{font-size:25px;margin:0 0 14px}
    .guide-main p{color:var(--muted);margin:0 0 20px}
    .guide-list{list-style:none;padding:0;margin:24px 0 0}
    .guide-list li{display:flex;gap:14px;padding:15px 0;border-top:1px solid var(--line)}
    .guide-list li:first-child{border-top:0}
    .guide-icon{
      width:30px;height:30px;border-radius:9px;background:var(--lime);color:#1a2317;
      display:grid;place-items:center;font-size:13px;font-weight:800;flex:0 0 auto
    }
    .guide-list strong{display:block;font-size:16px;margin-bottom:3px}
    .guide-list span{display:block;color:var(--muted);font-size:14px}
    .guide-aside{background:var(--ink-soft);color:#fff;padding:30px;position:relative;overflow:hidden}
    .guide-aside:after{
      content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(201,248,74,.35);
      border-radius:50%;right:-80px;bottom:-70px
    }
    .aside-label{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.1em}
    .guide-aside h3{font-size:25px;line-height:1.35;margin:14px 0}
    .guide-aside p{color:#c4cbc3;font-size:14px;position:relative;z-index:1}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:23px;position:relative;z-index:1}
    .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:7px;background:var(--lime);color:#1e281a;font-size:12px;font-weight:800}
    .tag.violet{background:#8e88c1;color:#fff}
    .stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;position:relative;z-index:1}
    .stat{padding:15px 12px;border-top:1px solid rgba(255,255,255,.18)}
    .stat b{display:block;color:var(--lime);font-size:22px;line-height:1.2}
    .stat span{display:block;color:#aeb4ad;font-size:12px;margin-top:5px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step-card{padding:25px 22px;transition:var(--ease)}
    .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c8d19c}
    .step-number{font-size:38px;font-weight:900;color:var(--lime-dark);line-height:1}
    .step-card h3{font-size:19px;margin:20px 0 8px}
    .step-card p{color:var(--muted);font-size:14px;margin:0}
    .flow-line{height:1px;background:var(--line);margin:23px 0 0}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .info-panel{padding:31px 32px}
    .info-panel.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .info-panel h3{font-size:23px;margin:0 0 12px}
    .info-panel p{color:var(--muted);margin:0 0 20px}
    .info-panel.dark p{color:#bec6be}
    .check-list{list-style:none;padding:0;margin:0}
    .check-list li{padding:12px 0 12px 27px;border-top:1px solid var(--line);position:relative;color:#4f5650}
    .check-list li:first-child{border-top:0}
    .check-list li:before{content:"";position:absolute;left:0;top:21px;width:10px;height:10px;background:var(--lime);border-radius:3px}
    .dark .check-list li{border-color:rgba(255,255,255,.13);color:#dfe5de}
    .guide-note{background:var(--violet-soft);border-left:4px solid var(--violet);padding:18px 20px;border-radius:10px;color:#4d4a6b;margin-top:22px;font-size:14px}
    .faq-box{overflow:hidden}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{
      width:100%;display:flex;align-items:center;justify-content:space-between;
      gap:18px;background:transparent;padding:21px 24px;text-align:left;font-weight:800;color:var(--ink)
    }
    .faq-question span:last-child{color:var(--violet);font-size:23px;transition:var(--ease)}
    .faq-answer{display:none;padding:0 24px 22px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:#59643b}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--lime-dark)}
    .cta-panel{
      background:var(--ink-soft);color:#fff;padding:42px 46px;display:flex;
      align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden
    }
    .cta-panel:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(201,248,74,.2);border-radius:50%;right:-100px;top:-130px}
    .cta-panel h2{font-size:30px;line-height:1.3;margin:0 0 10px;position:relative;z-index:1}
    .cta-panel p{color:#c9cec8;margin:0;max-width:650px;position:relative;z-index:1}
    .cta-panel .btn{position:relative;z-index:1;flex:0 0 auto}
    .site-footer{background:#101214;color:#fff;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:45px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand p{max-width:340px;color:#aeb4ad;font-size:14px;margin:19px 0 0}
    .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#bfc5be;font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#777e77;font-size:12px;padding-top:20px}
    @media(max-width:1100px){
      .navbar{gap:15px}.brand{min-width:220px}.nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a:after{left:8px;right:8px}.steps{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:900px){
      .nav-links{display:none;position:absolute;left:24px;right:24px;top:70px;
        background:var(--ink-soft);padding:12px;border:1px solid rgba(255,255,255,.12);
        border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}.nav-links a{padding:12px 14px}
      .menu-toggle{display:block;margin-left:auto}.nav-cta{display:none}
      .guide-layout,.two-col{grid-template-columns:1fr}
      .section{padding:72px 0}
    }
    @media(max-width:600px){
      .container{width:min(100% - 32px,1200px)}
      .navbar{height:70px}.brand{min-width:0}.brand-name{font-size:15px}.brand-sub{font-size:9px}
      .brand-mark{width:34px;height:34px}
      .page-hero{padding:53px 0 62px}.page-hero h1{font-size:36px}
      .page-hero-copy{font-size:15px}.hero-points{gap:7px}.hero-point{font-size:12px}
      .section-head{display:block}.section-intro{margin-top:14px}
      .guide-main,.guide-aside,.info-panel{padding:25px 22px}
      .steps{grid-template-columns:1fr}
      .stats-row{gap:7px}.stat b{font-size:19px}
      .cta-panel{display:block;padding:31px 25px}.cta-panel h2{font-size:25px}
      .cta-panel .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}.footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:390px){
      .brand-sub{letter-spacing:0}.brand-name{font-size:14px}.page-hero h1{font-size:31px}
      .footer-grid{grid-template-columns:1fr}
    }

/* 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}