/* roulang page: index */
:root{
  --lime:#c9f24a;
  --lime-deep:#a8d832;
  --charcoal:#202522;
  --ink:#202522;
  --muted:#68716b;
  --paper:#f7f8f3;
  --white:#fff;
  --line:#e0e5dc;
  --coral:#f27d61;
  --soft:#edf2e7;
  --shadow:0 18px 50px rgba(31,38,32,.09);
  --radius:16px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(247,248,243,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
.logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
.logo-mark:before{width:7px;height:30px}.logo-mark:after{width:30px;height:7px}
.logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
.nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
.nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
.nav a:hover:after,.nav a.active:after{right:0}
.header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
.header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
.menu-toggle{display:none;border:0;background:transparent;font-size:24px}
.hero{padding:82px 0 70px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid #dce5d4;border-radius:50%;right:-180px;top:-180px}
.hero:after{content:"";position:absolute;width:280px;height:280px;background:var(--lime);opacity:.18;border-radius:50%;left:-140px;bottom:-170px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
.hero h1{font-size:clamp(35px,4.6vw,61px);line-height:1.14;letter-spacing:-2.5px;margin:18px 0 20px;max-width:700px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 63%,var(--lime) 63%);padding:0 4px}
.hero-copy{font-size:17px;color:var(--muted);max-width:620px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
.btn-primary{background:var(--lime);color:var(--charcoal)}
.btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
.btn-secondary{border-color:#cfd7ca;background:var(--white)}
.btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
.trust-row{display:flex;gap:22px;flex-wrap:wrap;margin-top:34px;color:#69736a;font-size:12px}
.trust-row span{display:flex;align-items:center;gap:7px}.trust-row b{width:7px;height:7px;border-radius:50%;background:var(--coral)}
.interface{background:var(--charcoal);border-radius:24px;padding:16px;box-shadow:var(--shadow);transform:rotate(2deg)}
.interface-top{height:34px;display:flex;align-items:center;gap:6px;padding:0 7px;color:#aeb8aa;font-size:11px}
.dot{width:7px;height:7px;border-radius:50%;background:#69756d}.dot:first-child{background:var(--lime)}
.screen{background:#f4f7ed;border-radius:15px;padding:22px;min-height:330px}
.screen-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.screen-brand{font-weight:850;font-size:17px}.screen-status{font-size:11px;background:#e1efbd;padding:4px 9px;border-radius:20px;color:#657626}
.screen-feature{background:var(--lime);border-radius:13px;padding:20px;margin-bottom:14px;min-height:125px;position:relative;overflow:hidden}
.screen-feature:after{content:"";position:absolute;width:130px;height:130px;border:18px solid rgba(32,37,34,.12);border-radius:50%;right:-28px;top:-42px}
.screen-feature strong{display:block;font-size:20px;line-height:1.25;max-width:190px}
.screen-feature small{display:block;margin-top:9px;color:#58651e}
.screen-tiles{display:grid;grid-template-columns:1.2fr .8fr;gap:12px}
.screen-tile{height:92px;background:#fff;border:1px solid #e3e9dc;border-radius:11px;padding:13px}
.screen-tile b{display:block;font-size:13px}.screen-tile span{display:block;color:#889187;font-size:11px;margin-top:7px}
.section{padding:96px 0}.section.alt{background:#eef2ea}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}
.section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin-top:10px}
.section-intro{color:var(--muted);max-width:550px;font-size:14px}
.text-link{font-size:13px;font-weight:750;border-bottom:1px solid var(--lime-deep);padding-bottom:4px;white-space:nowrap}
.platform-grid{display:grid;grid-template-columns:5fr 7fr;gap:18px}
.platform-main{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:36px;min-height:320px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.platform-main:after{content:"PG";position:absolute;right:20px;bottom:-52px;font-size:190px;line-height:1;font-weight:900;color:#ffffff0d}
.platform-main p{color:#b8c2b7;max-width:370px;margin-top:14px;font-size:14px}
.platform-main .btn{align-self:flex-start;margin-top:26px}
.platform-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:150px;transition:.25s}
.info-card:hover,.category-card:hover{border-color:var(--lime-deep);box-shadow:var(--shadow);transform:translateY(-3px)}
.icon-box{width:38px;height:38px;border-radius:10px;background:var(--soft);display:grid;place-items:center;font-weight:900;color:#687a22;margin-bottom:16px}
.info-card h3{font-size:17px}.info-card p{font-size:13px;color:var(--muted);margin-top:7px}
.download-band{background:var(--charcoal);color:#fff;overflow:hidden}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.download-band .section-kicker{color:var(--lime)}
.download-band h2{font-size:38px;line-height:1.25;margin:14px 0}.download-band p{color:#b8c2b7;max-width:510px}
.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.download-meta span{border:1px solid #536057;color:#c4cec0;padding:7px 11px;border-radius:7px;font-size:12px}
.device-wrap{display:flex;justify-content:center;align-items:center;gap:20px}
.phone{width:190px;background:#121614;border:7px solid #3c463d;border-radius:27px;padding:8px;transform:rotate(-5deg);box-shadow:0 20px 35px #0005}
.phone-screen{background:#f3f7eb;border-radius:16px;padding:14px;height:300px;color:var(--ink)}
.phone-screen .mini-logo{font-weight:900;font-size:13px;margin-bottom:19px}.mini-block{height:72px;background:var(--lime);border-radius:9px;margin-bottom:10px}.mini-line{height:9px;background:#dce5d6;border-radius:5px;margin:10px 0}.mini-line.short{width:65%}
.qr{width:128px;height:128px;background:#fff;padding:10px;display:grid;grid-template-columns:repeat(7,1fr);gap:3px;border-radius:8px}
.qr i{background:var(--charcoal)}.qr i:nth-child(3n){background:transparent}.qr i:nth-child(5n){background:var(--coral)}
.news-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
.feature-news,.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.feature-news{padding:30px;min-height:280px;display:flex;flex-direction:column;justify-content:space-between}
.news-label{color:#d7654d;font-size:12px;font-weight:800}.feature-news h3{font-size:25px;line-height:1.4;margin:12px 0}.feature-news p{font-size:14px;color:var(--muted)}
.news-list{padding:10px 24px}
.news-item{display:grid;grid-template-columns:1fr auto;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s}
.news-item:last-child{border-bottom:0}.news-item:hover h3{color:#748d1b}
.news-item h3{font-size:15px;line-height:1.45}.news-item p{font-size:12px;color:var(--muted);margin-top:4px}.news-time{font-size:11px;color:#8a938b;white-space:nowrap}
.empty-state{padding:30px;text-align:center;color:var(--muted);font-size:14px}
.category-area{background:#f7f8f3}
.category-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:16px}
.category-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:23px;min-height:145px;transition:.25s}
.category-card.main{grid-row:span 2;background:var(--lime);display:flex;flex-direction:column;justify-content:flex-end}
.category-card h3{font-size:18px}.category-card p{font-size:13px;color:var(--muted);margin-top:7px}.category-card.main p{color:#59651f}
.category-num{font-family:monospace;color:#829728;font-size:12px;margin-bottom:18px}
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.faq-grid .section-intro{margin-top:15px}
.faq-item{border-top:1px solid var(--line);padding:20px 0}.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{font-weight:750;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq-item summary:after{content:"＋";color:#78921d;font-size:20px;line-height:1}.faq-item[open] summary:after{content:"－"}.faq-item p{color:var(--muted);font-size:14px;margin-top:12px;padding-right:30px}
.cta{padding:28px 0}.cta-box{background:var(--lime);border-radius:18px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-box h2{font-size:29px;line-height:1.3}.cta-box p{font-size:14px;margin-top:7px;color:#56631c}.cta-box .btn{background:var(--charcoal);color:#fff}
.site-footer{background:var(--charcoal);color:#fff;padding:60px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}.footer-brand p{color:#aeb8ad;font-size:13px;max-width:290px;margin-top:15px}.site-footer h3{font-size:14px;margin-bottom:16px}.footer-links{display:grid;gap:9px}.footer-links a{color:#aeb8ad;font-size:13px}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #424b44;padding-top:20px;color:#8f9a90;font-size:12px;display:flex;justify-content:space-between;gap:20px}
:focus-visible{outline:3px solid #f4a08d;outline-offset:3px}
@media(max-width:1024px){.nav{gap:11px}.nav a{font-size:12px}.hero-grid{gap:35px}.section{padding:75px 0}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.header-action{display:none}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:16px;flex-direction:column;align-items:stretch;gap:3px}.nav.open{display:flex}.nav a{padding:10px 4px}.hero{padding:58px 0}.hero-grid,.download-grid,.news-grid,.faq-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.interface{max-width:560px;margin:0 auto}.platform-grid{grid-template-columns:1fr}.category-grid{grid-template-columns:1fr 1fr}.category-card.main{grid-column:span 2;grid-row:auto}.download-grid{gap:38px}.download-band{padding-bottom:70px}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{padding:32px;display:block}.cta-box .btn{margin-top:20px}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.hero h1{font-size:34px;letter-spacing:-1.5px}.hero-copy{font-size:15px}.actions .btn{flex:1;padding-left:12px;padding-right:12px}.trust-row{gap:12px}.section{padding:62px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.section h2{font-size:28px}.platform-side{grid-template-columns:1fr}.platform-main{padding:26px}.download-band h2{font-size:30px}.device-wrap{gap:10px}.phone{width:155px}.phone-screen{height:250px}.qr{width:105px;height:105px}.category-grid{grid-template-columns:1fr}.category-card.main{grid-column:auto}.news-list{padding:8px 17px}.news-item{grid-template-columns:1fr;gap:5px}.news-time{order:2}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
      --lime:#c9f24a;
      --lime-deep:#a8d832;
      --charcoal:#202522;
      --ink:#202522;
      --muted:#68716b;
      --paper:#f7f8f3;
      --white:#fff;
      --line:#e0e5dc;
      --coral:#f27d61;
      --soft:#edf2e7;
      --shadow:0 18px 50px rgba(31,38,32,.09);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(168,216,50,.75);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      height:78px;
      background:rgba(247,248,243,.94);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(12px);
    }
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{
      width:32px;height:32px;background:var(--lime);border-radius:9px;
      display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto
    }
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}
    .logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{
      content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;
      background:var(--lime-deep);transition:.25s
    }
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{
      background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;
      font-size:13px;font-weight:700;transition:.25s;white-space:nowrap
    }
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px;color:var(--charcoal)}
    .page-hero{
      padding:48px 0 44px;
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(90deg,rgba(201,242,74,.18) 1px,transparent 1px),
        linear-gradient(rgba(201,242,74,.18) 1px,transparent 1px),
        var(--paper);
      background-size:36px 36px;
    }
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:0 0 27px}
    .breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime-deep)}
    .breadcrumb .separator{color:#9ba59c}
    .article-heading{max-width:900px}
    .article-heading h1{
      font-size:clamp(32px,4.5vw,58px);line-height:1.2;letter-spacing:-2px;
      margin:14px 0 20px;font-weight:850
    }
    .article-heading .summary{font-size:17px;color:var(--muted);max-width:780px;margin:0}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:25px;color:var(--muted);font-size:13px}
    .badge{
      display:inline-flex;align-items:center;border-radius:7px;padding:5px 10px;
      font-size:12px;font-weight:750;background:var(--lime);color:var(--charcoal)
    }
    .article-layout{
      display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:42px;
      align-items:start;padding:68px 0 90px
    }
    .article-card{
      background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:0 8px 30px rgba(31,38,32,.045);padding:clamp(25px,4vw,56px);
      min-width:0
    }
    .article-content{max-width:790px;font-size:16px;line-height:2;color:#374039}
    .article-content h2,.article-content h3,.article-content h4{
      color:var(--ink);line-height:1.4;letter-spacing:-.5px;margin:2em 0 .7em;font-weight:800
    }
    .article-content h2{font-size:28px;border-left:5px solid var(--lime);padding-left:14px}
    .article-content h3{font-size:22px}
    .article-content h4{font-size:18px}
    .article-content p{margin:0 0 1.25em}
    .article-content ul,.article-content ol{padding-left:1.6em;margin:0 0 1.4em}
    .article-content li{padding-left:.3em;margin:.35em 0}
    .article-content blockquote{
      margin:1.7em 0;padding:18px 22px;border-left:4px solid var(--coral);
      background:#fff4ef;color:#59635b;border-radius:0 10px 10px 0
    }
    .article-content img{width:100%;border-radius:12px;margin:24px 0 8px}
    .article-content figure{margin:25px 0}
    .article-content figcaption{font-size:12px;color:var(--muted);text-align:center}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
    .article-content th{background:var(--soft);font-weight:750}
    .article-content a{color:#657e19;text-decoration:underline;text-decoration-color:var(--lime-deep);text-underline-offset:3px}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:35px 0}
    .article-content pre{background:var(--charcoal);color:#e6f2dc;border-radius:10px;padding:18px;overflow:auto;font-size:13px;line-height:1.7}
    .article-content code{background:var(--soft);border-radius:4px;padding:2px 5px;font-size:.9em}
    .article-content pre code{background:transparent;padding:0}
    .side-column{display:flex;flex-direction:column;gap:18px;position:sticky;top:102px}
    .side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
    .side-card.dark{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .side-card h2{font-size:18px;line-height:1.4;margin:0 0 16px}
    .side-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
    .side-card.dark p{color:#b8c2b7}
    .side-links{display:flex;flex-direction:column;gap:0}
    .side-links a{
      display:flex;justify-content:space-between;gap:12px;padding:11px 0;
      border-bottom:1px solid var(--line);font-size:13px
    }
    .side-links a:last-child{border-bottom:0;padding-bottom:0}
    .side-links a:hover{color:#6d8b18}
    .side-links span{color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:9px;padding:13px 20px;
      font-size:14px;font-weight:750;transition:.25s
    }
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    .side-card .btn{width:100%}
    .article-footer{
      border-top:1px solid var(--line);margin-top:45px;padding-top:25px;
      display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap
    }
    .back-link{font-size:13px;font-weight:750;color:#61791e}
    .back-link:hover{text-decoration:underline}
    .empty-state{
      min-height:280px;display:grid;place-items:center;text-align:center;
      color:var(--muted);font-size:15px
    }
    .empty-state strong{display:block;color:var(--ink);font-size:22px;margin-bottom:7px}
    .empty-state a{color:#61791e;font-weight:700;text-decoration:underline}
    .site-footer{background:var(--charcoal);color:#fff;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:38px}
    .footer-brand .logo{color:#fff;margin-bottom:17px}
    .footer-brand p{color:#b8c2b7;font-size:13px;max-width:320px;margin:0}
    .site-footer h3{font-size:14px;margin:4px 0 14px;color:var(--lime);font-weight:750}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#c1cbc0;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{
      border-top:1px solid #404941;margin-top:45px;padding-top:18px;
      display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;
      color:#8e9a90;font-size:12px
    }
    @media (max-width:1100px){
      .header-inner{gap:17px}
      .nav{gap:12px}
      .nav a{font-size:12px}
      .header-action{padding:10px 12px;font-size:12px}
      .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:25px}
    }
    @media (max-width:900px){
      .site-header{height:70px}
      .menu-toggle{display:block;margin-left:auto}
      .nav{
        display:none;position:absolute;top:70px;left:0;right:0;margin:0;
        padding:18px 24px;background:var(--paper);border-bottom:1px solid var(--line);
        box-shadow:0 14px 25px rgba(31,38,32,.08);flex-direction:column;align-items:stretch;gap:2px
      }
      .nav.open{display:flex}
      .nav a{padding:10px 0}
      .header-action{display:none}
      .article-layout{grid-template-columns:1fr;padding-top:45px}
      .side-column{position:static;display:grid;grid-template-columns:1fr 1fr}
    }
    @media (max-width:600px){
      .container{width:min(100% - 32px,var(--container))}
      .logo{font-size:14px;max-width:calc(100% - 42px);white-space:normal;line-height:1.25}
      .logo-mark{width:29px;height:29px}
      .page-hero{padding:32px 0 31px}
      .breadcrumb{font-size:12px;margin-bottom:18px}
      .article-heading h1{font-size:34px;letter-spacing:-1.2px;margin:10px 0 14px}
      .article-heading .summary{font-size:15px}
      .article-layout{padding:32px 0 55px}
      .article-card{padding:23px 18px;border-radius:13px}
      .article-content{font-size:15px;line-height:1.9}
      .article-content h2{font-size:23px}
      .article-content h3{font-size:19px}
      .side-column{display:flex}
      .side-card{padding:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px 18px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{margin-top:30px;display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }
    @media (max-width:380px){
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category1 */
:root{
      --lime:#c9f24a;
      --lime-deep:#a8d832;
      --charcoal:#202522;
      --ink:#202522;
      --muted:#68716b;
      --paper:#f7f8f3;
      --white:#fff;
      --line:#e0e5dc;
      --coral:#f27d61;
      --soft:#edf2e7;
      --shadow:0 18px 50px rgba(31,38,32,.09);
      --shadow-soft:0 8px 24px rgba(31,38,32,.07);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(247,248,243,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}
    .logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px;color:var(--charcoal)}
    .hero{padding:76px 0 72px;position:relative;overflow:hidden;background:#f1f5eb}
    .hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid #d5e0ca;border-radius:50%;right:-170px;top:-220px}
    .hero:after{content:"";position:absolute;width:230px;height:230px;background:var(--lime);opacity:.2;border-radius:50%;left:-120px;bottom:-130px}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
    .hero h1{font-size:clamp(36px,5vw,62px);line-height:1.13;letter-spacing:-2.5px;margin:18px 0 20px;max-width:680px}
    .hero h1 em{font-style:normal;background:linear-gradient(transparent 63%,var(--lime) 63%);padding:0 4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:620px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
    .btn:focus,.nav a:focus,.header-action:focus,.text-link:focus{outline:3px solid rgba(168,216,50,.45);outline-offset:4px}
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    .trust-row{display:flex;gap:22px;flex-wrap:wrap;margin-top:32px;color:#69736a;font-size:12px}
    .trust-row span{display:flex;align-items:center;gap:7px}
    .trust-row b{width:7px;height:7px;border-radius:50%;background:var(--coral)}
    .news-panel{background:var(--charcoal);border-radius:20px;padding:25px;color:#fff;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ffffff20;padding-bottom:18px;margin-bottom:18px}
    .panel-brand{font-weight:850;font-size:17px}
    .panel-status{font-size:11px;color:#d7e5bc;display:flex;align-items:center;gap:6px}
    .panel-status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .panel-feature{background:var(--lime);color:var(--charcoal);border-radius:13px;padding:22px;min-height:145px;position:relative;overflow:hidden}
    .panel-feature:after{content:"";position:absolute;width:150px;height:150px;border:18px solid rgba(32,37,34,.12);border-radius:50%;right:-35px;top:-55px}
    .panel-feature small{font-size:11px;color:#58651e}
    .panel-feature strong{display:block;font-size:22px;line-height:1.3;max-width:235px;margin-top:7px}
    .panel-list{margin-top:15px;display:grid;gap:10px}
    .panel-line{display:flex;justify-content:space-between;gap:12px;padding:12px 13px;border:1px solid #ffffff18;border-radius:10px;color:#c8d1c6;font-size:12px}
    .panel-line b{color:var(--lime);font-size:11px;white-space:nowrap}
    .section{padding:92px 0}
    .section.alt{background:#eef2ea}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:32px}
    .section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:10px 0 0}
    .section-intro{color:var(--muted);max-width:560px;font-size:14px;margin:0}
    .text-link{font-size:13px;font-weight:750;border-bottom:1px solid var(--lime-deep);padding-bottom:4px;white-space:nowrap}
    .overview-grid{display:grid;grid-template-columns:5fr 7fr;gap:18px}
    .overview-main{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:34px;min-height:290px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .overview-main:after{content:"PG";position:absolute;right:18px;bottom:-52px;font-size:190px;line-height:1;font-weight:900;color:#ffffff0d}
    .overview-main h3{font-size:25px;max-width:300px;line-height:1.35}
    .overview-main p{color:#b8c2b7;max-width:380px;font-size:14px}
    .overview-main .btn{align-self:flex-start}
    .overview-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:135px;transition:.25s}
    .info-card:hover,.topic-card:hover,.timeline-item:hover{border-color:var(--lime-deep);box-shadow:var(--shadow-soft);transform:translateY(-3px)}
    .info-card .icon{width:34px;height:34px;display:grid;place-items:center;background:var(--soft);border-radius:9px;color:#6e8620;font-weight:900;margin-bottom:16px}
    .info-card h3{font-size:17px;margin:0}
    .info-card p{font-size:13px;color:var(--muted);margin:7px 0 0}
    .topic-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
    .topic-card.large{min-height:235px;background:linear-gradient(140deg,#fff 65%,#eff7d7)}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:7px;background:var(--lime);color:#405018;font-size:11px;font-weight:800}
    .badge.coral{background:#ffe2d9;color:#9a4934}
    .topic-card h3{font-size:23px;line-height:1.4;margin:19px 0 10px}
    .topic-card p{font-size:14px;color:var(--muted);margin:0;max-width:610px}
    .topic-side{display:grid;gap:18px}
    .topic-side .topic-card{min-height:108px;padding:22px}
    .topic-side h3{font-size:17px;margin:0 0 5px}
    .topic-side p{font-size:13px;margin:0}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:23px;transition:.25s;position:relative}
    .timeline-item:before{content:"";display:block;width:28px;height:4px;border-radius:3px;background:var(--coral);margin-bottom:18px}
    .timeline-item time{font-size:12px;color:var(--muted)}
    .timeline-item h3{font-size:17px;line-height:1.45;margin:9px 0}
    .timeline-item p{font-size:13px;color:var(--muted);margin:0}
    .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}
    .tag{font-size:11px;color:#67716a;background:var(--soft);border-radius:6px;padding:5px 8px}
    .guide-strip{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:30px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .guide-strip h3{margin:0;font-size:22px}
    .guide-strip p{margin:7px 0 0;color:#b8c2b7;font-size:13px}
    .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
    .faq-intro h2{max-width:350px}
    .faq-intro p{color:var(--muted);font-size:14px;margin-top:16px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
    .faq-item summary{padding:18px 20px;font-weight:750;font-size:14px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:#70852d;font-size:20px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 20px 19px;color:var(--muted);font-size:13px}
    .cta{padding:70px 0;background:var(--lime)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:32px;letter-spacing:-1px;margin:0}
    .cta p{margin:10px 0 0;color:#52611f;font-size:14px}
    .cta .btn-secondary{border-color:#6b801d;background:transparent}
    .site-footer{background:var(--charcoal);color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:38px}
    .footer-brand .logo{color:#fff}
    .footer-brand p{color:#aeb9ad;font-size:13px;max-width:340px;margin-top:18px}
    .site-footer h3{font-size:14px;margin:4px 0 15px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#aeb9ad;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{border-top:1px solid #ffffff18;margin-top:45px;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#89958a;font-size:12px}
    @media (max-width:1100px){
      .nav{gap:12px}
      .header-inner{gap:16px}
      .header-action{padding:10px 12px}
      .hero-grid{gap:38px}
    }
    @media (max-width:900px){
      .nav{display:none;position:absolute;left:24px;right:24px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:3px}
      .nav.open{display:flex}
      .nav a{padding:10px 8px}
      .menu-toggle{display:block;margin-left:auto}
      .header-action{display:none}
      .hero-grid,.overview-grid,.topic-layout,.faq-layout{grid-template-columns:1fr}
      .hero{padding-top:58px}
      .news-panel{max-width:610px}
      .faq-layout{gap:30px}
    }
    @media (max-width:700px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:70px}
      .logo{font-size:15px}
      .logo-mark{width:30px;height:30px}
      .nav{left:16px;right:16px;top:63px}
      .hero h1{font-size:38px;letter-spacing:-1.5px}
      .hero-copy{font-size:15px}
      .section{padding:65px 0}
      .section-head{display:block}
      .section-head .text-link{display:inline-block;margin-top:18px}
      .section h2{font-size:28px}
      .overview-side,.timeline{grid-template-columns:1fr}
      .overview-main{min-height:250px}
      .topic-card.large{min-height:205px}
      .guide-strip,.cta-inner{display:block}
      .guide-strip .btn,.cta .btn{margin-top:22px}
      .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:520px){
      .hero{padding:50px 0 55px}
      .hero h1{font-size:34px}
      .hero-actions .btn{width:100%}
      .news-panel{padding:18px}
      .panel-feature strong{font-size:19px}
      .section h2{font-size:26px}
      .overview-side{gap:12px}
      .info-card{padding:21px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --lime:#c9f24a;--lime-deep:#a8d832;--charcoal:#202522;--ink:#202522;
      --muted:#68716b;--paper:#f7f8f3;--white:#fff;--line:#e0e5dc;
      --coral:#f27d61;--soft:#edf2e7;--shadow:0 18px 50px rgba(31,38,32,.09);
      --radius:16px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(247,248,243,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}.logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px}
    .hero{padding:78px 0 68px;position:relative;overflow:hidden;background:#f1f5eb}
    .hero:before{content:"";position:absolute;width:460px;height:460px;border:1px solid #d8e4cf;border-radius:50%;right:-180px;top:-180px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
    h1{font-size:clamp(36px,5vw,60px);line-height:1.15;letter-spacing:-2.5px;margin:18px 0 20px}
    h1 em{font-style:normal;background:linear-gradient(transparent 63%,var(--lime) 63%);padding:0 4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:620px}
    .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
    .btn:focus,.nav a:focus,.text-link:focus{outline:3px solid #a8d83288;outline-offset:4px}
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    .guide-panel{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ffffff1c;padding-bottom:18px;margin-bottom:20px}
    .screen-brand{font-weight:850;font-size:17px}.status{font-size:11px;color:var(--charcoal);background:var(--lime);padding:4px 9px;border-radius:20px;font-weight:800}
    .route-box{background:#303833;border-radius:12px;padding:18px;margin:12px 0}
    .route-box b{display:block;font-size:16px}.route-box span{color:#b8c2b7;font-size:12px}
    .panel-foot{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
    .panel-foot span{color:#c5cec1;border:1px solid #566159;padding:6px 9px;border-radius:7px;font-size:11px}
    .section{padding:92px 0}.section.alt{background:#eef2ea}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:32px}
    .section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:10px 0 0}
    .section-intro{color:var(--muted);max-width:570px;font-size:14px}
    .text-link{font-size:13px;font-weight:750;border-bottom:1px solid var(--lime-deep);padding-bottom:4px;white-space:nowrap}
    .crumbs{padding:25px 0 0;color:var(--muted);font-size:13px}.crumbs a:hover{color:var(--ink);text-decoration:underline}
    .step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step-card,.feature-card,.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .step-card{padding:28px;min-height:230px;position:relative;overflow:hidden}
    .step-card:hover,.feature-card:hover{border-color:var(--lime-deep);box-shadow:var(--shadow);transform:translateY(-3px)}
    .step-number{font-size:44px;font-weight:900;color:var(--lime-deep);line-height:1;margin-bottom:22px}
    .step-card h3,.feature-card h3{font-size:19px;margin:0 0 9px}.step-card p,.feature-card p{font-size:14px;color:var(--muted);margin:0}
    .feature-layout{display:grid;grid-template-columns:5fr 7fr;gap:20px;align-items:stretch}
    .feature-card{padding:32px}.feature-card.dark{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
    .feature-card.dark p{color:#bdc6bb}.feature-card.dark .btn{margin-top:25px}
    .route-list{display:grid;gap:12px}
    .route-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
    .route-item:last-child{border-bottom:0}.route-icon{width:30px;height:30px;background:var(--lime);border-radius:8px;display:grid;place-items:center;font-weight:900;flex:none}
    .route-item b{display:block;font-size:15px}.route-item span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .notice{border-left:4px solid var(--coral);background:#fff7f3;padding:18px 20px;border-radius:0 12px 12px 0;color:#5c534e;font-size:14px}
    .faq-list{display:grid;gap:12px;max-width:900px}.faq-item{padding:0 22px}
    .faq-item summary{cursor:pointer;list-style:none;padding:20px 28px 20px 0;font-weight:750;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:0;font-size:22px;color:#718044}
    .faq-item[open] summary:after{content:"−"}.faq-answer{color:var(--muted);font-size:14px;padding:0 0 20px;max-width:800px}
    .cta{padding:58px 0;background:var(--lime)}.cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{margin:0;font-size:30px;line-height:1.3}.cta p{margin:8px 0 0;color:#59641f;font-size:14px}
    .site-footer{background:var(--charcoal);color:#fff;padding:60px 0 24px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#aeb9ae;font-size:13px;max-width:330px;margin-top:18px}.footer-links{display:grid;gap:9px;margin-top:12px}.site-footer h3{font-size:14px;margin:0}.footer-links a{color:#b7c1b7;font-size:13px}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #ffffff1c;margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#9da99e;font-size:12px}
    @media(max-width:1050px){.nav{gap:12px}.header-inner{gap:16px}.hero-grid{gap:35px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:800px){.site-header{height:70px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;left:24px;right:24px;top:70px;background:var(--white);padding:18px 22px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;margin:0}.nav.open{display:flex}.header-action{display:none}.hero-grid,.feature-layout{grid-template-columns:1fr}.hero{padding:58px 0}.guide-panel{max-width:540px}.step-grid{grid-template-columns:1fr 1fr}.section{padding:70px 0}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){.container{width:min(100% - 32px,var(--container))}.logo{font-size:14px}.logo-mark{width:29px;height:29px}.hero h1{font-size:38px;letter-spacing:-1.5px}.hero-copy{font-size:15px}.actions .btn{width:100%}.step-grid{grid-template-columns:1fr}.section-head,.cta-box{display:block}.section h2{font-size:29px}.section-head .text-link{display:inline-block;margin-top:18px}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}

/* roulang page: category3 */
:root{
      --lime:#c9f24a;
      --lime-deep:#a8d832;
      --charcoal:#202522;
      --ink:#202522;
      --muted:#68716b;
      --paper:#f7f8f3;
      --white:#fff;
      --line:#e0e5dc;
      --coral:#f27d61;
      --soft:#edf2e7;
      --shadow:0 18px 50px rgba(31,38,32,.09);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(247,248,243,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}.logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .hero{padding:70px 0 64px;background:#f0f4eb;border-bottom:1px solid var(--line)}
    .hero-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.13;letter-spacing:-2.7px;margin:18px 0}
    h1 em{font-style:normal;background:linear-gradient(transparent 64%,var(--lime) 64%);padding:0 4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:570px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .platform-map{background:var(--charcoal);border-radius:20px;padding:18px;color:#fff;box-shadow:var(--shadow);transform:rotate(1deg)}
    .map-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #465148;padding:9px 8px 17px}
    .map-brand{font-size:16px;font-weight:850}.live{font-size:11px;color:var(--lime);display:flex;align-items:center;gap:6px}
    .live:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .map-body{display:grid;grid-template-columns:125px 1fr;gap:14px;padding:18px 8px 8px}
    .map-menu{display:grid;gap:8px}.map-menu span{background:#303933;color:#bdc7bc;border-radius:7px;padding:9px;font-size:12px}.map-menu span:first-child{background:var(--lime);color:var(--charcoal);font-weight:700}
    .map-content{display:grid;grid-template-columns:1.2fr .8fr;gap:10px}.map-panel{border-radius:11px;background:#303933;padding:16px;min-height:112px}.map-panel.large{grid-row:span 2;background:var(--lime);color:var(--charcoal)}.map-panel strong{display:block;font-size:19px;line-height:1.3;margin-top:16px}.map-panel small{color:#aeb9ad;font-size:11px}.map-panel.large small{color:#5d6a23}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:12px}.hero-note span{display:flex;align-items:center;gap:7px}.hero-note i{width:7px;height:7px;background:var(--coral);border-radius:50%}
    .section{padding:88px 0}.section.alt{background:#eef2ea}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}.section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:10px 0}.section-intro{color:var(--muted);max-width:590px;font-size:14px}
    .feature-layout{display:grid;grid-template-columns:7fr 5fr;gap:20px;align-items:stretch}
    .interface-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:310px;box-shadow:0 8px 30px rgba(31,38,32,.04)}
    .interface-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}.interface-head strong{font-size:18px}.interface-head span{font-size:12px;color:#69736a;background:var(--soft);padding:5px 9px;border-radius:6px}
    .interface-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;margin-top:22px}.interface-tile{border:1px solid var(--line);border-radius:11px;padding:16px;min-height:105px}.interface-tile b{font-size:23px;display:block;color:var(--charcoal)}.interface-tile small{font-size:12px;color:var(--muted)}
    .module-list{display:grid;gap:12px}.module-item{background:var(--charcoal);color:#fff;border-radius:14px;padding:20px 22px;display:flex;gap:16px;align-items:flex-start;transition:.25s}.module-item:hover{transform:translateX(5px);background:#303933}.module-icon{width:32px;height:32px;border-radius:9px;background:var(--lime);color:var(--charcoal);display:grid;place-items:center;font-weight:900;flex:none}.module-item h3{font-size:16px;margin:0 0 4px}.module-item p{color:#b8c2b7;font-size:13px;margin:0}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.flow-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 20px;min-height:175px}.flow-item:not(:last-child):after{content:"→";position:absolute;right:-17px;top:63px;color:var(--lime-deep);font-weight:900;font-size:22px;z-index:2}.number{font-size:13px;color:#64712b;font-weight:850}.flow-item h3{font-size:17px;margin:14px 0 7px}.flow-item p{font-size:13px;color:var(--muted);margin:0}
    .dark-band{background:var(--charcoal);color:#fff}.dark-band .section-kicker{color:var(--lime)}.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.dark-band h2{font-size:38px;margin:14px 0}.dark-band p{color:#b8c2b7;font-size:15px;max-width:520px}.access-box{border:1px solid #4b574d;border-radius:16px;padding:24px;background:#29302b}.access-row{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid #465148}.access-row:last-child{border-bottom:0}.access-row span{color:#b8c2b7;font-size:13px}.status{font-size:12px;color:var(--lime);background:#42502d;padding:5px 9px;border-radius:6px}
    .scenario-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.scenario-main,.scenario-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}.scenario-main{min-height:260px}.scenario-main h3{font-size:25px;margin:12px 0}.scenario-main p,.scenario-side p{font-size:14px;color:var(--muted)}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.tag{font-size:12px;border-radius:7px;padding:6px 10px;background:var(--soft);color:#59652c}.tag.coral{background:#fff0eb;color:#b65c45}.scenario-side{display:grid;gap:16px}.scenario-side div{padding-bottom:16px;border-bottom:1px solid var(--line)}.scenario-side div:last-child{border:0;padding:0}.scenario-side strong{display:block;font-size:16px;margin-bottom:3px}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.faq-grid h2{margin-top:12px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px}.faq-item summary{cursor:pointer;padding:18px 0;font-weight:750;list-style:none;display:flex;justify-content:space-between;gap:15px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--lime-deep);font-size:22px;line-height:1}.faq-item[open] summary:after{content:"−"}.faq-answer{color:var(--muted);font-size:14px;padding:0 0 18px}
    .cta{padding:28px 34px;background:var(--lime);border-radius:18px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:28px;margin:0 0 5px}.cta p{margin:0;color:#566320;font-size:14px}.cta .btn{background:var(--charcoal);color:#fff}.cta .btn:hover{background:#39443b}
    .site-footer{background:#202522;color:#fff;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}.footer-brand .logo{color:#fff}.footer-brand p{color:#aeb9ad;max-width:330px;font-size:13px;margin-top:18px}.site-footer h3{font-size:14px;margin:5px 0 14px}.footer-links{display:grid;gap:9px}.footer-links a{font-size:13px;color:#aeb9ad;transition:.2s}.footer-links a:hover{color:var(--lime);padding-left:3px}.footer-bottom{border-top:1px solid #465148;margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#88958b;font-size:12px}
    @media(max-width:1100px){.nav{gap:12px}.header-inner{gap:16px}.header-action{padding:10px 12px}.hero-layout{gap:35px}.container{width:min(var(--container),calc(100% - 36px))}}
    @media(max-width:820px){.site-header{height:70px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;left:18px;right:18px;top:70px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:2px}.nav.open{display:flex}.nav a{padding:9px 8px}.header-action{display:none}.hero-layout,.feature-layout,.access-grid,.scenario-grid,.faq-grid{grid-template-columns:1fr}.hero{padding:58px 0}.platform-map{transform:none}.flow{grid-template-columns:1fr 1fr}.flow-item:not(:last-child):after{display:none}.section{padding:68px 0}.footer-grid{grid-template-columns:1fr 1fr}.cta{align-items:flex-start;flex-direction:column}}
    @media(max-width:520px){.container{width:min(100% - 30px,var(--container))}.logo{font-size:15px}.logo-mark{width:29px;height:29px}.hero h1{font-size:39px;letter-spacing:-1.8px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}.map-body{grid-template-columns:1fr}.map-menu{grid-template-columns:repeat(3,1fr)}.map-content{grid-template-columns:1fr 1fr}.interface-grid{grid-template-columns:1fr 1fr}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.flow{grid-template-columns:1fr}.dark-band h2{font-size:30px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:grid}.cta{padding:24px}.cta h2{font-size:24px}}

/* roulang page: category4 */
:root{
      --lime:#c9f24a;--lime-deep:#a8d832;--charcoal:#202522;--ink:#202522;
      --muted:#68716b;--paper:#f7f8f3;--white:#fff;--line:#e0e5dc;
      --coral:#f27d61;--soft:#edf2e7;--shadow:0 18px 50px rgba(31,38,32,.09);
      --radius:16px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:4px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(247,248,243,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}.logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px;color:var(--charcoal)}
    .hero{padding:84px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:540px;height:540px;border:1px solid #dce5d4;border-radius:50%;right:-180px;top:-210px}
    .hero:after{content:"";position:absolute;width:270px;height:270px;background:var(--lime);opacity:.2;border-radius:50%;left:-150px;bottom:-180px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
    .hero h1{font-size:clamp(36px,4.7vw,62px);line-height:1.14;letter-spacing:-2.5px;margin:18px 0 20px;max-width:690px}
    .hero h1 em{font-style:normal;background:linear-gradient(transparent 63%,var(--lime) 63%);padding:0 4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:620px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    .trust-row{display:flex;gap:22px;flex-wrap:wrap;margin-top:34px;color:#69736a;font-size:12px}
    .trust-row span{display:flex;align-items:center;gap:7px}.trust-row b{width:7px;height:7px;border-radius:50%;background:var(--coral)}
    .device-stage{min-height:430px;background:#e9efe3;border:1px solid var(--line);border-radius:28px;position:relative;padding:34px;display:flex;justify-content:center;align-items:center;overflow:hidden}
    .device-stage:before{content:"";position:absolute;width:340px;height:340px;border:1px dashed #bdcbb8;border-radius:50%}
    .phone{width:218px;height:390px;background:var(--charcoal);border:8px solid #303934;border-radius:30px;position:relative;z-index:1;padding:34px 14px 16px;box-shadow:0 25px 45px #20252235}
    .phone:before{content:"";position:absolute;top:10px;left:50%;width:68px;height:5px;background:#58645c;border-radius:8px;transform:translateX(-50%)}
    .phone-top{display:flex;justify-content:space-between;color:#d9e2d4;font-size:10px;margin-bottom:22px}
    .phone-panel{background:var(--lime);border-radius:12px;padding:17px 13px;height:112px}
    .phone-panel strong{font-size:18px;display:block;line-height:1.25}.phone-panel small{color:#59651d;font-size:10px}
    .phone-line{height:12px;background:#465149;border-radius:5px;margin-top:16px}.phone-line.short{width:62%;background:#647066}
    .phone-card{height:54px;border:1px solid #526057;border-radius:10px;margin-top:13px;padding:10px;color:#eef5e9;font-size:11px}
    .phone-card i{display:inline-block;width:25px;height:25px;background:var(--coral);border-radius:7px;vertical-align:middle;margin-right:8px}
    .floating-note{position:absolute;right:25px;bottom:30px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:12px;box-shadow:var(--shadow);z-index:2}
    .floating-note strong{display:block;font-size:15px}.floating-note span{color:var(--muted)}
    .section{padding:92px 0}.section.alt{background:#eef2ea}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}
    .section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:10px 0 0}
    .section-intro{color:var(--muted);max-width:560px;font-size:14px}
    .text-link{font-size:13px;font-weight:750;border-bottom:1px solid var(--lime-deep);padding-bottom:4px;white-space:nowrap}
    .feature-layout{display:grid;grid-template-columns:7fr 5fr;gap:20px}
    .feature-panel{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:38px;min-height:310px;position:relative;overflow:hidden}
    .feature-panel:after{content:"PG";position:absolute;right:20px;bottom:-58px;font-size:190px;font-weight:900;color:#ffffff0d}
    .feature-panel h3{font-size:27px;max-width:360px;line-height:1.35}.feature-panel p{color:#bac5ba;max-width:410px;font-size:14px}
    .feature-panel .btn{margin-top:20px}.feature-side{display:grid;gap:20px}
    .info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s}
    .info-card:hover,.step:hover,.faq-item:hover{border-color:var(--lime-deep);box-shadow:var(--shadow);transform:translateY(-3px)}
    .info-card h3{font-size:18px;margin:0}.info-card p{font-size:13px;color:var(--muted);margin:8px 0 0}
    .icon-box{width:42px;height:42px;background:var(--soft);border-radius:11px;display:grid;place-items:center;font-weight:900;color:#657629;margin-bottom:15px}
    .download-band{background:var(--charcoal);color:#fff}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .download-band .section-kicker{color:var(--lime)}.download-band h2{font-size:38px;max-width:500px}.download-band p{color:#bac5ba;max-width:520px}
    .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.download-meta span{border:1px solid #536057;color:#c4cec0;padding:7px 11px;border-radius:7px;font-size:12px}
    .qr-layout{display:flex;align-items:center;gap:28px;justify-content:center}.qr-box{width:155px;height:155px;background:#fff;border-radius:14px;padding:13px;display:grid;place-items:center}
    .qr-code{width:100%;height:100%;background:repeating-linear-gradient(0deg,#202522 0 5px,#fff 5px 9px),repeating-linear-gradient(90deg,transparent 0 6px,#202522 6px 10px);background-blend-mode:multiply}
    .qr-copy{max-width:220px;color:#c4cec0;font-size:13px}.qr-copy strong{display:block;color:#fff;font-size:17px;margin-bottom:8px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
    .step-number{font-size:30px;font-weight:900;color:var(--lime-deep);line-height:1}.step h3{font-size:18px;margin:18px 0 7px}.step p{font-size:13px;color:var(--muted);margin:0}
    .notice{margin-top:24px;padding:16px 20px;background:#fff8e8;border-left:4px solid var(--coral);border-radius:8px;color:#75634a;font-size:13px}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px 22px;transition:.25s}.faq-item summary{font-weight:750;cursor:pointer;list-style:none;position:relative;padding-right:28px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:0;color:#6c8328;font-size:21px;top:-4px}.faq-item[open] summary:after{content:"−"}.faq-item p{font-size:13px;color:var(--muted);margin:12px 0 0;padding-top:12px;border-top:1px solid var(--line)}
    .cta{padding:38px 44px;background:var(--lime);border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:28px}.cta h2{font-size:28px;margin:0}.cta p{margin:7px 0 0;color:#58651e;font-size:14px}.cta .btn-secondary{border-color:#829b35;background:transparent}
    .site-footer{background:#202522;color:#fff;padding:65px 0 22px}.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:38px}.footer-brand p{color:#aeb9ae;max-width:310px;font-size:13px;margin-top:18px}.site-footer .logo{color:#fff}.footer-grid h3{font-size:14px;margin:2px 0 15px}.footer-links{display:grid;gap:8px}.footer-links a{color:#aeb9ae;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime);padding-left:3px}.footer-bottom{border-top:1px solid #3b443e;margin-top:45px;padding-top:18px;color:#91a096;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:1100px){.nav{gap:12px}.header-inner{gap:18px}.header-action{padding:10px 13px}.hero-grid{gap:42px}.container{width:min(var(--container),calc(100% - 36px))}}
    @media(max-width:850px){.nav{display:none;position:absolute;left:18px;right:18px;top:70px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px 20px;box-shadow:var(--shadow);flex-wrap:wrap;gap:5px 18px}.nav.open{display:flex}.nav a{padding:6px 0}.menu-toggle{display:block;margin-left:auto}.header-action{display:none}.hero-grid,.download-grid,.faq-grid{grid-template-columns:1fr;gap:38px}.hero{padding:62px 0}.device-stage{min-height:400px}.feature-layout{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
    @media(max-width:560px){.container{width:min(100% - 30px,var(--container))}.site-header{height:70px}.logo{font-size:14px}.logo-mark{width:29px;height:29px}.hero h1{font-size:38px;letter-spacing:-1.5px}.hero-copy{font-size:15px}.button-row .btn{width:100%}.device-stage{padding:20px;min-height:390px}.phone{transform:scale(.88)}.floating-note{right:12px;bottom:16px}.section{padding:65px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:18px}.section h2,.download-band h2{font-size:29px}.feature-panel{padding:28px;min-height:300px}.steps{grid-template-columns:1fr}.qr-layout{gap:16px;flex-direction:column}.qr-copy{text-align:center}.cta{padding:28px 24px;display:block}.cta .btn{margin-top:20px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}}

/* roulang page: category5 */
:root{
      --lime:#c9f24a;
      --lime-deep:#a8d832;
      --charcoal:#202522;
      --ink:#202522;
      --muted:#68716b;
      --paper:#f7f8f3;
      --white:#fff;
      --line:#e0e5dc;
      --coral:#f27d61;
      --soft:#edf2e7;
      --shadow:0 18px 50px rgba(31,38,32,.09);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:4px}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(247,248,243,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px;white-space:nowrap;letter-spacing:-.5px}
    .logo-mark{width:32px;height:32px;background:var(--lime);border-radius:9px;display:grid;place-items:center;position:relative;overflow:hidden;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--charcoal);transform:rotate(45deg)}
    .logo-mark:before{width:7px;height:30px}
    .logo-mark:after{width:30px;height:7px}
    .logo-mark span{width:8px;height:8px;background:var(--lime);z-index:1;border-radius:2px}
    .nav{display:flex;align-items:center;gap:18px;margin-left:auto}
    .nav a{font-size:13px;color:#535d55;padding:8px 0;position:relative;white-space:nowrap}
    .nav a:after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:2px;background:var(--lime-deep);transition:.25s}
    .nav a:hover,.nav a.active{color:var(--ink);font-weight:700}
    .nav a:hover:after,.nav a.active:after{right:0}
    .header-action{background:var(--charcoal);color:#fff;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:700;transition:.25s;white-space:nowrap}
    .header-action:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 8px 18px #20252225}
    .menu-toggle{display:none;border:0;background:transparent;font-size:24px}
    .page-hero{padding:76px 0 68px;position:relative;overflow:hidden;background:#eef2ea;border-bottom:1px solid var(--line)}
    .page-hero:before{content:"";position:absolute;width:440px;height:440px;border:1px solid #d8e1d2;border-radius:50%;right:-130px;top:-180px}
    .page-hero:after{content:"PG";position:absolute;right:10%;bottom:-70px;font-size:210px;font-weight:900;color:#dfe8d9;line-height:1}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#64712b;font-size:12px;font-weight:800;letter-spacing:1.2px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;background:var(--lime-deep);border-radius:3px}
    .page-hero h1{font-size:clamp(36px,5vw,64px);line-height:1.14;letter-spacing:-2.5px;margin:18px 0 20px;max-width:700px}
    .page-hero h1 em{font-style:normal;background:linear-gradient(transparent 63%,var(--lime) 63%);padding:0 4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:680px;margin:0}
    .hero-note{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:26px;min-height:180px;box-shadow:var(--shadow)}
    .hero-note strong{font-size:21px;display:block;line-height:1.35;margin-bottom:12px}
    .hero-note p{font-size:13px;color:#c1cbc0;margin:0}
    .hero-note .note-line{display:flex;align-items:center;gap:9px;color:var(--lime);font-size:12px;font-weight:700;margin-top:22px}
    .note-line i{display:block;width:8px;height:8px;background:var(--coral);border-radius:50%}
    .breadcrumb{padding:20px 0 0;color:var(--muted);font-size:13px}
    .breadcrumb a:hover{color:var(--ink);text-decoration:underline}
    .section{padding:88px 0}
    .section.alt{background:#eef2ea}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:32px}
    .section h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:10px 0 0}
    .section-intro{color:var(--muted);max-width:590px;font-size:14px;margin:0}
    .text-link{font-size:13px;font-weight:750;border-bottom:1px solid var(--lime-deep);padding-bottom:4px;white-space:nowrap}
    .guide-layout{display:grid;grid-template-columns:4fr 8fr;gap:20px;align-items:start}
    .guide-menu{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:28px;position:sticky;top:102px}
    .guide-menu h3{font-size:19px;margin:0 0 18px}
    .guide-menu a{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid #ffffff22;color:#c4cec0;font-size:13px;transition:.2s}
    .guide-menu a:last-child{border-bottom:0}
    .guide-menu a:hover,.guide-menu a.active{color:var(--lime);padding-left:5px}
    .guide-menu b{font-size:11px;color:var(--lime)}
    .guide-content{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .guide-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:205px;transition:.25s}
    .guide-card:hover{border-color:var(--lime-deep);box-shadow:var(--shadow);transform:translateY(-3px)}
    .guide-card.wide{grid-column:span 2;min-height:180px}
    .guide-number{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--lime);font-weight:900;margin-bottom:18px}
    .guide-card h3{font-size:19px;margin:0 0 8px}
    .guide-card p{font-size:13px;color:var(--muted);margin:0}
    .guide-card a{display:inline-block;margin-top:20px;color:#5b7620;font-size:13px;font-weight:750}
    .guide-card a:hover{text-decoration:underline}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:23px;background:#fff;border:1px solid var(--line);border-radius:14px;position:relative}
    .step:not(:last-child):after{content:"";position:absolute;top:36px;right:-15px;width:16px;height:1px;background:var(--lime-deep);z-index:2}
    .step small{display:block;color:#718033;font-weight:800;font-size:12px;margin-bottom:10px}
    .step h3{font-size:16px;margin:0 0 7px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .tips-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .tip-panel{border-radius:var(--radius);padding:34px;background:var(--charcoal);color:#fff}
    .tip-panel.light{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .tip-panel h3{font-size:22px;margin:0 0 12px}
    .tip-panel p{font-size:14px;color:#c0c9bf;margin:0 0 20px}
    .tip-panel.light p{color:var(--muted)}
    .tip-list{padding:0;margin:0;list-style:none}
    .tip-list li{display:flex;gap:10px;font-size:13px;padding:10px 0;border-bottom:1px solid #ffffff20}
    .light .tip-list li{border-color:var(--line)}
    .tip-list li:before{content:"✓";color:var(--lime-deep);font-weight:900}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
    .tag{font-size:12px;padding:6px 10px;border-radius:7px;background:var(--soft);color:#5c7024;border:1px solid #d9e5c4}
    .tag.coral{background:#fff0ec;color:#b6513d;border-color:#f6c9be}
    .faq-list{max-width:880px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
    .faq-item summary{list-style:none;cursor:pointer;padding:20px 23px;font-weight:750;font-size:15px;position:relative;padding-right:55px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:22px;top:15px;font-size:25px;font-weight:400;color:#718033}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 23px 21px;color:var(--muted);font-size:14px}
    .cta{padding:58px 0;background:var(--lime)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:32px;line-height:1.25;margin:0 0 8px;letter-spacing:-1px}
    .cta p{margin:0;color:#526022;font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:13px 20px;font-size:14px;font-weight:750;transition:.25s}
    .btn-primary{background:var(--lime);color:var(--charcoal)}
    .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 10px 24px #a8d83245}
    .btn-dark{background:var(--charcoal);color:#fff}
    .btn-dark:hover{background:#39443b;transform:translateY(-2px);box-shadow:0 10px 24px #20252230}
    .btn-secondary{border-color:#cfd7ca;background:var(--white)}
    .btn-secondary:hover{border-color:var(--charcoal);transform:translateY(-2px)}
    .site-footer{background:var(--charcoal);color:#fff;padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:42px;padding-bottom:42px;border-bottom:1px solid #ffffff1c}
    .footer-brand .logo{color:#fff;margin-bottom:18px}
    .footer-brand p{color:#aeb9ad;font-size:13px;max-width:330px;margin:0}
    .site-footer h3{font-size:14px;margin:4px 0 14px;color:var(--lime)}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{font-size:13px;color:#b8c2b7;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#869287;font-size:12px}
    @media (max-width:1024px){
      .nav{gap:11px}
      .header-inner{gap:16px}
      .hero-inner{gap:35px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .step:nth-child(2):after{display:none}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}
      .logo{font-size:15px}
      .logo-mark{width:29px;height:29px}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:14px 20px;flex-direction:column;align-items:stretch;gap:0;box-shadow:var(--shadow)}
      .nav.open{display:flex}
      .nav a{padding:10px 0}
      .header-action{margin-left:auto;padding:9px 12px;font-size:12px}
      .menu-toggle{display:block}
      .hero-inner,.guide-layout,.tips-grid{grid-template-columns:1fr}
      .page-hero{padding:55px 0 48px}
      .page-hero h1{font-size:42px}
      .hero-note{min-height:auto}
      .guide-menu{position:static}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-head .text-link{display:inline-block;margin-top:15px}
      .steps{grid-template-columns:1fr}
      .step:not(:last-child):after{display:none}
      .cta-inner{display:block}
      .cta .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:last-child{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .page-hero h1{font-size:35px;letter-spacing:-1.5px}
      .hero-copy{font-size:15px}
      .guide-content{grid-template-columns:1fr}
      .guide-card.wide{grid-column:auto}
      .guide-card{min-height:0}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
      .cta h2{font-size:27px}
    }

/* 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}