/* roulang page: index */
:root{
  --brand:#b94b32;
  --brand-deep:#8f3625;
  --brand-soft:#f7e8e2;
  --ink:#263331;
  --muted:#6d7975;
  --green:#58776c;
  --green-soft:#e8f0ec;
  --paper:#fffdf9;
  --warm:#f5f1eb;
  --line:#e6dfd6;
  --shadow:0 16px 42px rgba(56,43,32,.08);
  --radius:16px;
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--warm);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none;transition:.25s ease}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(255,253,249,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:78px;display:flex;align-items:center;gap:34px}
.logo{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--brand);white-space:nowrap}
.logo-mark{display:inline-flex;width:29px;height:29px;margin-right:9px;border-radius:9px;background:var(--brand);color:#fff;align-items:center;justify-content:center;font-size:16px;vertical-align:-3px}
.nav{display:flex;align-items:center;gap:5px;flex:1}
.nav a{padding:9px 13px;color:#59625f;border-radius:9px;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--brand);background:var(--brand-soft)}
.nav a.active{font-weight:700}
.nav-cta{background:var(--brand)!important;color:#fff!important;padding:10px 18px!important;border-radius:9px!important}
.nav-cta:hover{background:var(--brand-deep)!important;transform:translateY(-1px)}
.menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
.hero{padding:78px 0 72px;background:var(--paper);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700;font-size:13px;margin-bottom:18px}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--brand)}
h1{font-size:clamp(36px,5vw,62px);line-height:1.18;letter-spacing:-.045em;margin-bottom:22px;color:#202d2a}
.hero-copy{font-size:18px;color:var(--muted);max-width:610px}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:700;border:1px solid transparent}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(185,75,50,.18)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn-secondary{border-color:#cfa99d;color:var(--brand);background:#fff}
.btn-secondary:hover{background:var(--brand-soft);transform:translateY(-1px)}
.hero-notice{margin-top:30px;display:flex;gap:28px;color:var(--muted);font-size:13px}
.hero-notice strong{display:block;color:var(--ink);font-size:15px}
.hero-visual{position:relative;min-height:390px;background:#e8eee9;border-radius:24px;padding:32px;overflow:hidden}
.hero-visual:after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:#d8e5dd;right:-75px;bottom:-75px}
.device{position:relative;z-index:1;width:190px;height:350px;background:#20322e;border:8px solid #172521;border-radius:28px;margin:0 auto;box-shadow:18px 22px 35px rgba(35,51,45,.24);padding:10px}
.device-screen{height:100%;border-radius:18px;background:#fffdf9;overflow:hidden}
.screen-top{height:78px;background:var(--brand);padding:19px 15px;color:#fff}
.screen-top small{opacity:.8}.screen-top b{display:block;font-size:18px}
.screen-content{padding:17px}.screen-line{height:10px;background:#e8ebe7;border-radius:4px;margin-bottom:11px}.screen-line.short{width:55%}
.screen-card{background:var(--green-soft);border-radius:10px;padding:14px;margin:17px 0}.screen-card b{font-size:13px;display:block}.screen-card span{display:block;height:8px;background:#b5cbc1;border-radius:4px;margin-top:9px;width:75%}
.visual-label{position:absolute;z-index:2;background:#fffdf9;border:1px solid var(--line);border-radius:12px;padding:10px 13px;box-shadow:var(--shadow);font-size:12px;color:var(--muted)}
.visual-label strong{display:block;color:var(--ink);font-size:14px}.label-a{left:25px;top:56px}.label-b{right:24px;bottom:68px}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
.section-kicker{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}
h2{font-size:32px;line-height:1.3;margin-top:5px;letter-spacing:-.025em}
.section-intro{color:var(--muted);max-width:560px}
.quick-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.quick-item{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:21px;display:flex;align-items:center;gap:15px}
.quick-item:hover{border-color:#d29a8b;box-shadow:var(--shadow);transform:translateY(-2px)}
.quick-icon{width:40px;height:40px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800}
.quick-item b{display:block}.quick-item span{font-size:12px;color:var(--muted)}
.news-section{background:#fffaf4}
.news-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:22px}
.featured-news,.news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}
.featured-news{padding:29px;min-height:270px;display:flex;flex-direction:column;justify-content:space-between}
.news-tag,.pill{display:inline-flex;width:max-content;padding:3px 9px;border-radius:99px;background:var(--green-soft);color:var(--green);font-size:12px}
.featured-news h3{font-size:25px;line-height:1.4;margin:18px 0 8px}
.featured-news p{color:var(--muted)}
.news-meta{display:flex;gap:14px;color:var(--muted);font-size:12px;margin-top:20px}
.news-list{padding:8px 25px}
.news-row{display:grid;grid-template-columns:82px 1fr auto;gap:18px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}
.news-row:last-child{border-bottom:0}
.news-date{color:var(--brand);font-weight:800;font-size:13px}.news-row h4{font-size:16px}.news-row p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.arrow{color:var(--brand);font-size:20px}
.timeline{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.timeline-item{display:grid;grid-template-columns:72px 20px 1fr;gap:16px;align-items:start;padding:18px 0;border-bottom:1px solid var(--line)}
.timeline-item time{font-size:13px;color:var(--muted)}.timeline-dot{width:11px;height:11px;margin-top:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px var(--brand-soft)}
.timeline-item h4{font-size:16px}.timeline-item p{color:var(--muted);font-size:13px;margin-top:3px}
.download{background:#273b35;color:#fff}
.download .section-kicker{color:#e7b09f}.download h2{color:#fff}.download .section-intro{color:#c8d2cd}
.download-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:70px;align-items:center}
.download-art{height:330px;position:relative;background:#39564c;border-radius:20px;padding-top:20px}
.download-art .device{height:300px;width:164px;border-color:#172a25}.download-art .screen-top{height:62px;padding:14px}.download-art .screen-top b{font-size:15px}
.download-card{background:#fff;color:var(--ink);border-radius:12px;padding:15px 18px;position:absolute;right:25px;top:45px;width:170px;box-shadow:0 14px 28px rgba(0,0,0,.16);font-size:13px}.download-card b{display:block;margin-bottom:9px}.qr{width:72px;height:72px;background:repeating-linear-gradient(45deg,#263331 0 3px,#fff 3px 6px);border:6px solid #fff;margin-bottom:8px}
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:25px 0}.info-cell{border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:13px 15px}.info-cell span{display:block;color:#b9c9c1;font-size:12px}.info-cell b{font-size:15px}
.download .btn-secondary{background:transparent;color:#fff;border-color:#9db1a7}.download .btn-secondary:hover{background:rgba(255,255,255,.1)}
.feature-band{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}
.function-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.function-row{display:flex;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}.function-row:last-child{border:0}.function-no{color:var(--brand);font-weight:800;font-size:18px}.function-row h4{font-size:17px}.function-row p{color:var(--muted);font-size:13px}
.highlight-panel{background:var(--brand-soft);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;justify-content:space-between}.highlight-panel h3{font-size:25px;line-height:1.4}.highlight-panel p{color:#735c54}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:25px 22px;border-right:1px solid var(--line)}.step:last-child{border:0}.step-num{font-size:30px;color:var(--brand);font-weight:800}.step h4{margin:8px 0 5px}.step p{font-size:13px;color:var(--muted)}
.service-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}.service-item{background:var(--paper);padding:25px;border-left:3px solid var(--green);border-radius:0 12px 12px 0}.service-item b{font-size:22px;color:var(--brand);display:block}.service-item p{color:var(--muted);font-size:13px;margin-top:5px}
.notice-strip{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:20px 25px;background:#f1e8dc;border:1px solid #eadaca;border-radius:12px}.notice-strip p{color:#6e6258}.notice-strip b{white-space:nowrap}
.split-box{display:grid;grid-template-columns:1fr 1fr;gap:22px}.safety-box,.support-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.safety-box h3,.support-box h3{font-size:21px;margin-bottom:16px}.check-list{list-style:none}.check-list li{padding:9px 0;border-bottom:1px solid var(--line);color:var(--muted)}.check-list li:before{content:"✓";color:var(--green);font-weight:800;margin-right:10px}
.topic-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:14px}.topic{min-height:150px;border-radius:14px;padding:25px;background:var(--paper);border:1px solid var(--line);position:relative;overflow:hidden}.topic.large{grid-row:span 2;min-height:315px;background:var(--green);color:#fff}.topic p{font-size:13px;color:var(--muted);margin-top:8px}.topic.large p{color:#d5e2dc}.topic a{position:absolute;bottom:21px;color:var(--brand);font-weight:700}.topic.large a{color:#fff}
.faq-list{max-width:850px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:19px 0}summary{cursor:pointer;list-style:none;font-weight:700;display:flex;justify-content:space-between}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--brand);font-size:20px}details[open] summary:after{content:"－"}details p{color:var(--muted);padding:12px 35px 0 0;font-size:14px}
.support-section{background:var(--paper)}.support-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}.support-box{background:var(--warm)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field textarea{border:1px solid var(--line);background:#fff;border-radius:8px;padding:11px 13px;outline:none}.field textarea{min-height:105px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.site-footer{background:#25332f;color:#c8d0cb;padding:52px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:40px;padding-bottom:38px}.footer-logo{color:#fff;font-size:20px;font-weight:800}.footer-desc{font-size:13px;color:#9eada6;margin-top:12px;max-width:270px}.footer-col h4{color:#fff;margin-bottom:13px}.footer-col a{display:block;color:#aab8b1;font-size:13px;padding:3px 0}.footer-col a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#8f9c96}
@media(max-width:1024px){.nav-wrap{gap:18px}.nav a{padding:8px 8px;font-size:13px}.hero-grid,.download-grid{gap:35px}.container{width:min(var(--container),calc(100% - 36px))}}
@media(max-width:768px){.site-header,.nav-wrap{height:68px}.nav-wrap{justify-content:space-between}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:12px 18px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:13px 15px}.nav-cta{margin-top:8px;text-align:center}.menu-toggle{display:block}.hero{padding:55px 0}.hero-grid,.news-layout,.download-grid,.feature-band,.split-box,.support-grid{grid-template-columns:1fr}.hero-visual{min-height:350px}.quick-nav{grid-template-columns:1fr 1fr}.section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:10px}.timeline{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.service-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr}.topic.large{grid-row:auto;grid-column:1/-1;min-height:220px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body{font-size:14px}.container{width:calc(100% - 28px)}.logo{font-size:16px}.logo-mark{width:25px;height:25px;margin-right:5px}.hero h1{font-size:38px}.hero-copy{font-size:16px}.hero-notice{gap:14px;flex-wrap:wrap}.quick-nav,.steps,.topic-grid,.form-grid{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}.news-list{padding:5px 17px}.news-row{grid-template-columns:62px 1fr;gap:10px}.news-row .arrow{display:none}.news-row p{white-space:normal;line-height:1.5}.download-art{height:330px}.download-card{right:8px;width:145px}.info-grid{grid-template-columns:1fr}.notice-strip{display:block}.notice-strip .btn{margin-top:12px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: article */
:root{
      --brand:#b94b32;
      --brand-deep:#8f3625;
      --brand-soft:#f7e8e2;
      --ink:#263331;
      --muted:#6d7975;
      --green:#58776c;
      --green-soft:#e8f0ec;
      --paper:#fffdf9;
      --warm:#f5f1eb;
      --line:#e6dfd6;
      --shadow:0 16px 42px rgba(56,43,32,.08);
      --radius:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--warm);
      line-height:1.75;
      font-size:15px;
    }
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:hover{color:var(--brand)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(185,75,50,.3);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{
      height:78px;
      background:rgba(255,253,249,.94);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(12px);
    }
    .nav-wrap{height:78px;display:flex;align-items:center;gap:34px}
    .logo{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--brand);white-space:nowrap}
    .logo-mark{
      display:inline-flex;width:29px;height:29px;margin-right:9px;border-radius:9px;
      background:var(--brand);color:#fff;align-items:center;justify-content:center;
      font-size:16px;vertical-align:-3px;
    }
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;color:#59625f;border-radius:9px;white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--brand);background:var(--brand-soft)}
    .nav a.active{font-weight:700}
    .nav-cta{background:var(--brand)!important;color:#fff!important;padding:10px 18px!important;border-radius:9px!important}
    .nav-cta:hover{background:var(--brand-deep)!important;transform:translateY(-1px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .article-hero{
      padding:58px 0 54px;
      background:var(--paper);
      border-bottom:1px solid var(--line);
    }
    .breadcrumb{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;
      color:var(--muted);font-size:13px;margin-bottom:28px;
    }
    .breadcrumb .current{color:var(--ink);max-width:650px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .breadcrumb-separator{color:#b7ada3}
    .article-heading{max-width:850px}
    .article-heading h1{
      font-size:clamp(30px,4vw,48px);
      line-height:1.25;
      letter-spacing:-.03em;
      margin:0 0 21px;
      font-weight:800;
    }
    .article-lead{font-size:17px;color:var(--muted);max-width:780px;margin:0 0 25px}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .pill{
      display:inline-flex;width:max-content;padding:3px 10px;border-radius:99px;
      background:var(--green-soft);color:var(--green);font-size:12px;
    }
    .article-layout{
      display:grid;grid-template-columns:minmax(0,780px) 260px;gap:58px;
      align-items:start;padding:72px 0 86px;
    }
    .article-content{
      background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
      padding:clamp(26px,5vw,56px);box-shadow:0 9px 28px rgba(56,43,32,.045);
      min-width:0;
    }
    .article-content>*:first-child{margin-top:0}
    .article-content>*:last-child{margin-bottom:0}
    .article-content h2,.article-content h3{
      color:var(--ink);line-height:1.45;margin:35px 0 15px;font-weight:800
    }
    .article-content h2{font-size:26px}
    .article-content h3{font-size:20px}
    .article-content p{margin:0 0 20px;color:#42504c;font-size:16px}
    .article-content ul,.article-content ol{padding-left:1.6em;margin:15px 0 24px;color:#42504c}
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:28px 0;padding:18px 22px;border-left:4px solid var(--brand);
      background:var(--brand-soft);color:#60483f;border-radius:0 10px 10px 0;
    }
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
    .article-content th{background:var(--green-soft);color:var(--green)}
    .article-content img{border-radius:12px;margin:24px auto}
    .article-aside{position:sticky;top:108px}
    .aside-card{
      background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;
      margin-bottom:16px;
    }
    .aside-card h3{font-size:16px;margin:0 0 14px}
    .aside-card p{font-size:13px;color:var(--muted);margin:0}
    .aside-line{height:1px;background:var(--line);margin:17px 0}
    .aside-link{display:flex;justify-content:space-between;gap:12px;padding:8px 0;color:var(--muted);font-size:13px}
    .aside-link:hover{color:var(--brand);padding-left:3px}
    .notice-box{
      display:flex;gap:15px;align-items:flex-start;margin-top:25px;padding:19px 21px;
      background:var(--green-soft);border:1px solid #d5e3dc;border-radius:12px;
    }
    .notice-icon{color:var(--green);font-size:22px;line-height:1}
    .notice-box strong{display:block;font-size:15px;margin-bottom:3px}
    .notice-box p{margin:0;color:#5d7069;font-size:13px}
    .article-bottom{
      border-top:1px solid var(--line);padding-top:25px;margin-top:50px;
      display:flex;justify-content:space-between;gap:18px;align-items:center;flex-wrap:wrap
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;min-height:44px;
      padding:0 19px;border-radius:9px;font-weight:700;border:1px solid transparent
    }
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(185,75,50,.18)}
    .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px)}
    .btn-secondary{border-color:#cfa99d;color:var(--brand);background:#fff}
    .btn-secondary:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
    .support-section{padding:0 0 82px}
    .support-panel{
      display:flex;justify-content:space-between;align-items:center;gap:30px;
      padding:30px 34px;background:var(--green);border-radius:var(--radius);color:#fff
    }
    .support-panel h2{font-size:24px;margin:0 0 6px}
    .support-panel p{margin:0;color:#d8e3de}
    .support-panel .btn-secondary{background:transparent;color:#fff;border-color:#b6cbc1}
    .support-panel .btn-secondary:hover{background:rgba(255,255,255,.1)}
    .empty-state{text-align:center;padding:65px 20px;color:var(--muted)}
    .empty-state h2{color:var(--ink);font-size:26px;margin:0 0 9px}
    .empty-state p{margin:0 0 23px}
    .site-footer{background:#263331;color:#e8eeeb;padding:55px 0 23px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
    .footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:10px}
    .footer-desc{color:#aebdb7;font-size:13px;max-width:260px}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h4{font-size:14px;color:#fff;margin:0 0 8px}
    .footer-col a{color:#aebdb7;font-size:13px}
    .footer-col a:hover{color:#f0b09f}
    .copyright{border-top:1px solid rgba(255,255,255,.13);padding-top:18px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#91a29b;font-size:12px}
    @media (max-width:1024px){
      .nav-wrap{gap:18px}.nav a{padding:8px 8px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 225px;gap:30px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}
      .nav-wrap{justify-content:space-between}
      .menu-toggle{display:block}
      .nav{
        display:none;position:absolute;left:16px;right:16px;top:76px;
        background:var(--paper);border:1px solid var(--line);border-radius:14px;
        padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
      }
      .nav.open{display:flex}
      .nav a{padding:12px 14px}
      .nav-cta{text-align:center;margin-top:5px}
      .article-hero{padding:42px 0 38px}
      .article-layout{display:block;padding:42px 0 58px}
      .article-aside{position:static;margin-top:25px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
      .aside-card{margin:0}
      .support-section{padding-bottom:58px}
      .support-panel{display:block;padding:27px}
      .support-panel .btn{margin-top:20px;width:100%}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:25px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:520px){
      .logo{font-size:17px}.logo-mark{width:26px;height:26px;font-size:14px;margin-right:6px}
      .article-heading h1{font-size:29px}
      .article-lead{font-size:15px}
      .article-content{padding:24px 20px}
      .article-content p{font-size:15px}
      .article-aside{display:block}
      .aside-card{margin-bottom:14px}
      .article-bottom{align-items:stretch;flex-direction:column}
      .article-bottom .btn{width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-bottom:7px}
    }

/* roulang page: category1 */
:root{
      --brand:#b94b32;
      --brand-deep:#8f3625;
      --brand-soft:#f7e8e2;
      --ink:#263331;
      --muted:#6d7975;
      --green:#58776c;
      --green-soft:#e8f0ec;
      --paper:#fffdf9;
      --warm:#f5f1eb;
      --line:#e6dfd6;
      --shadow:0 16px 42px rgba(56,43,32,.08);
      --shadow-sm:0 8px 24px rgba(56,43,32,.06);
      --radius:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--warm);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,249,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:34px}
    .logo{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--brand);white-space:nowrap}
    .logo-mark{display:inline-flex;width:29px;height:29px;margin-right:9px;border-radius:9px;background:var(--brand);color:#fff;align-items:center;justify-content:center;font-size:16px;vertical-align:-3px}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;color:#59625f;border-radius:9px;white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--brand);background:var(--brand-soft)}
    .nav a.active{font-weight:700}
    .nav .nav-cta{background:var(--brand);color:#fff;padding:10px 18px;border-radius:9px;margin-left:auto}
    .nav .nav-cta:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .page-hero{padding:62px 0 54px;background:var(--paper);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--brand)}
    .breadcrumb .current{color:var(--ink)}
    .hero-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:16px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--brand)}
    h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35}
    h1{font-size:clamp(34px,4.5vw,58px);letter-spacing:-.035em}
    .hero-copy{font-size:17px;color:var(--muted);max-width:680px;margin:20px 0 0}
    .hero-note{background:var(--green-soft);border:1px solid #d5e2da;border-radius:var(--radius);padding:23px 25px}
    .hero-note strong{display:block;font-size:18px;margin-bottom:7px}
    .hero-note p{color:var(--muted);font-size:13px;margin:0}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    .section-head h2{font-size:30px;margin-top:7px}
    .section-intro{color:var(--muted);max-width:560px;margin:0}
    .filter-bar{display:flex;gap:10px;flex-wrap:wrap;padding:14px;background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:30px}
    .filter{padding:8px 17px;border-radius:8px;color:var(--muted);font-size:14px}
    .filter:hover,.filter.active{background:var(--brand-soft);color:var(--brand);font-weight:700}
    .feature-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .feature-card,.support-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .feature-card{padding:31px;min-height:250px;display:flex;flex-direction:column;justify-content:space-between}
    .news-tag,.pill{display:inline-flex;width:max-content;padding:3px 10px;border-radius:99px;background:var(--green-soft);color:var(--green);font-size:12px}
    .feature-card h3{font-size:25px;margin:18px 0 9px}
    .feature-card p{color:var(--muted);margin:0}
    .meta{display:flex;gap:15px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:20px}
    .feature-empty{color:var(--muted);font-size:14px;margin-top:auto}
    .news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:7px 28px}
    .news-row{display:grid;grid-template-columns:92px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .news-row:last-child{border-bottom:0}
    .news-date{color:var(--muted);font-size:13px}
    .news-row h3{font-size:17px;margin:0 0 4px}
    .news-row p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .news-row:hover h3{color:var(--brand)}
    .arrow{color:var(--brand);font-size:21px}
    .more-wrap{text-align:center;margin-top:28px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:9px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(185,75,50,.18)}
    .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px)}
    .btn-secondary{border-color:#cfa99d;color:var(--brand);background:#fff}
    .btn-secondary:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
    .timeline-section{background:#fffaf4}
    .timeline{max-width:850px}
    .timeline-item{display:grid;grid-template-columns:105px 20px 1fr;gap:18px;align-items:start;padding:20px 0;border-bottom:1px solid var(--line)}
    .timeline-item time{font-size:13px;color:var(--muted);padding-top:2px}
    .timeline-dot{width:12px;height:12px;border:3px solid var(--brand);background:var(--paper);border-radius:50%;margin-top:7px;position:relative}
    .timeline-dot:after{content:"";position:absolute;left:2px;top:9px;width:2px;height:68px;background:#e8c9bd}
    .timeline-item:last-child .timeline-dot:after{display:none}
    .timeline-item h4{font-size:16px}
    .timeline-item p{color:var(--muted);font-size:13px;margin:3px 0 0}
    .support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .support-card{padding:24px}
    .support-icon{width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:18px}
    .support-card h3{font-size:18px;margin-bottom:8px}
    .support-card p{color:var(--muted);font-size:13px;margin:0}
    .cta-band{background:var(--green);color:#fff;padding:42px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta-band h2{font-size:27px}
    .cta-band p{color:#d8e3dd;margin:8px 0 0}
    .cta-band .btn-secondary{border-color:#b6c9bf;background:transparent;color:#fff}
    .cta-band .btn-secondary:hover{background:rgba(255,255,255,.1)}
    .site-footer{background:#263331;color:#dce4df;padding:56px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-logo{color:#fff;font-size:20px;font-weight:800;margin-bottom:10px}
    .footer-desc{color:#aebdb6;font-size:13px;margin:0}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h4{font-size:14px;color:#fff;margin-bottom:8px}
    .footer-col a{color:#aebdb6;font-size:13px}
    .footer-col a:hover{color:#efb09d}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:18px;color:#91a39a;font-size:12px}
    :focus-visible{outline:3px solid rgba(185,75,50,.35);outline-offset:3px}
    @media(max-width:1024px){
      .nav-wrap{gap:16px}.nav{gap:1px}.nav a{padding:8px 8px;font-size:13px}
      .hero-layout{gap:35px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}.nav-wrap{justify-content:space-between}
      .menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px 20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:13px 15px}.nav .nav-cta{margin:5px 0 0;text-align:center}
      .page-hero{padding:38px 0 44px}.hero-layout,.feature-grid{grid-template-columns:1fr}
      h1{font-size:38px}.hero-copy{font-size:16px}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:13px}
      .news-row{grid-template-columns:1fr auto;gap:8px}.news-date{grid-column:1/-1}.news-row p{white-space:normal}
      .support-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-band .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      .logo{font-size:17px}.logo-mark{width:26px;height:26px;margin-right:6px}
      h1{font-size:32px}.hero-note{padding:19px}
      .support-grid{grid-template-columns:1fr}.timeline-item{grid-template-columns:76px 16px 1fr;gap:10px}
      .news-list{padding:7px 17px}.feature-card{padding:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
    }

/* roulang page: category3 */
:root{
      --brand:#b94b32;
      --brand-deep:#8f3625;
      --brand-soft:#f7e8e2;
      --ink:#263331;
      --muted:#6d7975;
      --green:#58776c;
      --green-deep:#3f5c52;
      --green-soft:#e8f0ec;
      --paper:#fffdf9;
      --warm:#f5f1eb;
      --line:#e6dfd6;
      --shadow:0 16px 42px rgba(56,43,32,.08);
      --radius:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--warm);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{font-weight:800;letter-spacing:.01em}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,249,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:34px}
    .logo{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--brand);white-space:nowrap}
    .logo-mark{display:inline-flex;width:29px;height:29px;margin-right:9px;border-radius:9px;background:var(--brand);color:#fff;align-items:center;justify-content:center;font-size:16px;vertical-align:-3px}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;color:#59625f;border-radius:9px;white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--brand);background:var(--brand-soft)}
    .nav a.active{font-weight:700}
    .nav-cta{background:var(--brand)!important;color:#fff!important;padding:10px 18px!important;border-radius:9px!important}
    .nav-cta:hover{background:var(--brand-deep)!important;transform:translateY(-1px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px;padding:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:700;border:1px solid transparent;transition:.25s ease}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(185,75,50,.18)}
    .btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px)}
    .btn-secondary{border-color:#cfa99d;color:var(--brand);background:#fff}
    .btn-secondary:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
    .btn:focus-visible,.nav a:focus-visible,.guide-link:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(185,75,50,.28);outline-offset:3px}
    .page-intro{background:var(--paper);border-bottom:1px solid var(--line);padding:34px 0 42px}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:0 0 25px;padding:0;list-style:none;font-size:13px;color:var(--muted)}
    .breadcrumb a:hover{color:var(--brand)}
    .breadcrumb span{color:#a39f98}
    .page-heading{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:800;font-size:13px;letter-spacing:.08em;margin-bottom:12px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--brand)}
    .page-heading h1{font-size:clamp(31px,4vw,49px);line-height:1.25;margin-bottom:14px}
    .page-heading p{max-width:680px;font-size:17px;color:var(--muted);margin-bottom:0}
    .guide-stamp{background:var(--green-soft);border-left:4px solid var(--green);padding:19px 22px;border-radius:0 12px 12px 0;color:var(--green-deep)}
    .guide-stamp strong{display:block;font-size:16px;color:var(--ink);margin-bottom:3px}
    .section{padding:82px 0}
    .section-white{background:var(--paper)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}
    .section-kicker{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand);margin-bottom:8px}
    .section-head h2{font-size:30px;line-height:1.35;margin-bottom:0}
    .section-intro{max-width:500px;color:var(--muted);margin-bottom:0}
    .guide-index{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .index-card{background:var(--paper);border:1px solid var(--line);border-radius:13px;padding:20px;min-height:168px;display:flex;flex-direction:column}
    .index-card:hover{border-color:#d29a8b;box-shadow:var(--shadow);transform:translateY(-3px)}
    .index-no{display:flex;width:31px;height:31px;border-radius:9px;background:var(--brand-soft);color:var(--brand);align-items:center;justify-content:center;font-size:13px;font-weight:800;margin-bottom:15px}
    .index-card h3{font-size:17px;margin-bottom:6px}
    .index-card p{font-size:13px;color:var(--muted);line-height:1.65;margin-bottom:0}
    .topic-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:stretch}
    .topic-lead{background:var(--green);border-radius:var(--radius);padding:35px;color:#fff;position:relative;overflow:hidden}
    .topic-lead:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-66px;bottom:-76px}
    .topic-lead .section-kicker{color:#dbe9e2}
    .topic-lead h2{font-size:29px;line-height:1.35;position:relative;z-index:1}
    .topic-lead p{color:#e1ece6;position:relative;z-index:1;margin:14px 0 25px}
    .topic-lead .btn-secondary{position:relative;z-index:1;background:transparent;border-color:#c9ddd2;color:#fff}
    .topic-lead .btn-secondary:hover{background:rgba(255,255,255,.12);color:#fff}
    .step-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:8px 27px}
    .step-item{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:21px 0;border-bottom:1px solid var(--line)}
    .step-item:last-child{border-bottom:0}
    .step-number{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand);font-size:14px;font-weight:800}
    .step-item h3{font-size:17px;margin:0 0 4px}
    .step-item p{color:var(--muted);font-size:14px;margin:0}
    .scenario-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .scenario-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:27px;position:relative;overflow:hidden}
    .scenario-card:hover{box-shadow:var(--shadow);border-color:#d6b2a7}
    .scenario-icon{width:43px;height:43px;border-radius:12px;background:var(--green-soft);display:flex;align-items:center;justify-content:center;color:var(--green);font-size:20px;margin-bottom:18px}
    .scenario-card h3{font-size:20px;margin-bottom:8px}
    .scenario-card p{color:var(--muted);margin-bottom:17px}
    .guide-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700}
    .guide-link:hover{color:var(--brand-deep);gap:11px}
    .notice-strip{background:#fff8ee;border:1px solid #ecd6b9;border-radius:13px;padding:21px 24px;display:flex;align-items:center;gap:17px;color:#6e5841}
    .notice-mark{flex:0 0 36px;width:36px;height:36px;border-radius:50%;background:#f3dfc4;color:#9d6432;display:flex;align-items:center;justify-content:center;font-weight:800}
    .notice-strip strong{color:var(--ink)}
    .content-list{display:grid;gap:14px}
    .content-row{background:var(--paper);border:1px solid var(--line);border-radius:13px;padding:21px 24px;display:grid;grid-template-columns:116px 1fr auto;gap:24px;align-items:center}
    .content-row:hover{border-color:#d29a8b;box-shadow:0 10px 26px rgba(56,43,32,.06)}
    .content-date{font-size:13px;color:var(--muted);padding-right:19px;border-right:1px solid var(--line)}
    .content-date b{display:block;color:var(--brand);font-size:18px;line-height:1.3}
    .content-main .pill{margin-bottom:7px}
    .content-main h3{font-size:18px;margin:0 0 4px;line-height:1.45}
    .content-main p{margin:0;color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .empty-state{background:var(--paper);border:1px dashed #cfbdb0;border-radius:var(--radius);padding:35px;text-align:center;color:var(--muted)}
    .faq-wrap{max-width:900px;margin:auto}
    .faq-item{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;text-align:left;padding:20px 23px;background:transparent;color:var(--ink);font-weight:800;font-size:16px}
    .faq-question:hover{color:var(--brand)}
    .faq-symbol{color:var(--brand);font-size:23px;font-weight:400;line-height:1;transition:.25s ease}
    .faq-answer{display:none;padding:0 23px 21px;color:var(--muted);border-top:1px solid transparent}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-symbol{transform:rotate(45deg)}
    .cta-panel{background:var(--ink);color:#fff;border-radius:20px;padding:42px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden}
    .cta-panel:before{content:"";position:absolute;width:250px;height:250px;border-radius:50%;background:rgba(185,75,50,.26);right:-80px;top:-150px}
    .cta-panel h2{position:relative;font-size:29px;margin-bottom:7px}
    .cta-panel p{position:relative;color:#cbd3d0;margin:0}
    .cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap}
    .cta-panel .btn-secondary{background:transparent;color:#fff;border-color:#8da49a}
    .cta-panel .btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff}
    .site-footer{background:#202a28;color:#d5dcd8;padding:60px 0 23px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px;padding-bottom:43px}
    .footer-logo{font-size:21px;font-weight:800;color:#fff;margin-bottom:10px}
    .footer-desc{color:#aebbb5;max-width:280px;margin:0}
    .footer-col h4{font-size:15px;color:#fff;margin-bottom:14px}
    .footer-col a{display:block;color:#b5c0bb;font-size:14px;margin:8px 0}
    .footer-col a:hover{color:#f0a38f}
    .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#9da9a4;font-size:12px}
    @media(max-width:1024px){
      .nav-wrap{gap:16px}
      .nav a{padding:8px 9px;font-size:14px}
      .guide-index{grid-template-columns:repeat(3,1fr)}
      .page-heading{gap:28px}
      .footer-grid{gap:25px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}
      .nav-wrap{justify-content:space-between}
      .logo{font-size:17px}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px 19px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 14px 24px rgba(56,43,32,.08);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:12px 14px}
      .page-intro{padding:28px 0 33px}
      .page-heading,.topic-panel{grid-template-columns:1fr}
      .guide-stamp{margin-top:4px}
      .section{padding:62px 0}
      .section-head{display:block;margin-bottom:24px}
      .section-intro{margin-top:10px}
      .guide-index{grid-template-columns:repeat(2,1fr)}
      .scenario-grid{grid-template-columns:1fr}
      .content-row{grid-template-columns:88px 1fr;gap:16px}
      .content-row .guide-link{grid-column:2}
      .cta-panel{padding:34px 28px;display:block}
      .cta-actions{margin-top:23px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
      body{font-size:14px}
      .logo-mark{width:26px;height:26px;margin-right:6px}
      .page-heading h1{font-size:30px}
      .section-head h2,.topic-lead h2,.cta-panel h2{font-size:25px}
      .guide-index{grid-template-columns:1fr}
      .index-card{min-height:auto;padding:18px}
      .step-list{padding:7px 18px}
      .step-item{grid-template-columns:43px 1fr;gap:13px}
      .content-row{grid-template-columns:1fr;padding:20px}
      .content-date{border:0;padding:0}
      .content-date b{display:inline;margin-right:7px}
      .content-row .guide-link{grid-column:auto}
      .notice-strip{align-items:flex-start;padding:18px}
      .cta-panel{padding:29px 22px}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin:6px 0}
    }

/* roulang page: category2 */
:root{
      --brand:#b94b32;
      --brand-deep:#8f3625;
      --brand-soft:#f7e8e2;
      --ink:#263331;
      --muted:#6d7975;
      --green:#58776c;
      --green-soft:#e8f0ec;
      --paper:#fffdf9;
      --warm:#f5f1eb;
      --line:#e6dfd6;
      --shadow:0 16px 42px rgba(56,43,32,.08);
      --radius:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--warm);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,249,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
    .logo{font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--brand);white-space:nowrap}
    .logo-mark{display:inline-flex;width:29px;height:29px;margin-right:9px;border-radius:9px;background:var(--brand);color:#fff;align-items:center;justify-content:center;font-size:16px;vertical-align:-3px}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{padding:9px 13px;color:#59625f;border-radius:9px;white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--brand);background:var(--brand-soft)}
    .nav a.active{font-weight:700}
    .nav-cta{background:var(--brand)!important;color:#fff!important;padding:10px 18px!important;border-radius:9px!important}
    .nav-cta:hover{background:var(--brand-deep)!important;transform:translateY(-1px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .breadcrumb-bar{padding:24px 0 0;color:var(--muted);font-size:13px}
    .breadcrumb-bar a:hover{color:var(--brand)}
    .page-intro{padding:42px 0 54px;display:grid;grid-template-columns:1fr 370px;gap:60px;align-items:end}
    .eyebrow,.section-kicker{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:15px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--brand)}
    h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35}
    h1{font-size:clamp(34px,5vw,58px);letter-spacing:-.04em}
    .intro-text{color:var(--muted);font-size:17px;max-width:690px;margin:20px 0 0}
    .intro-aside{border-left:3px solid var(--brand);padding:12px 0 12px 22px;color:var(--muted)}
    .intro-aside strong{display:block;color:var(--ink);font-size:18px;margin-bottom:5px}
    .section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:30px;margin-top:7px}
    .section-intro{color:var(--muted);max-width:570px}
    .overview{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .overview-item{padding:25px 24px;border-right:1px solid var(--line)}
    .overview-item:last-child{border-right:0}
    .overview-item span{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
    .overview-item b{font-size:18px}
    .download-panel{background:#31453f;color:#fff;padding:78px 0}
    .download-panel h2{color:#fff;font-size:34px}
    .download-panel .section-kicker{color:#e9b4a5}
    .download-panel .section-intro{color:#cbd5d0}
    .download-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:76px;align-items:center}
    .device-stage{height:410px;position:relative;background:#dce8e1;border-radius:26px;overflow:hidden;display:flex;align-items:center;justify-content:center}
    .device-stage:before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:#c8d9d0;right:-70px;bottom:-100px}
    .phone{position:relative;z-index:1;width:190px;height:350px;background:#faf8f3;border:8px solid #243631;border-radius:28px;box-shadow:0 18px 35px rgba(29,48,42,.22);padding:30px 15px 15px}
    .phone:before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:55px;height:5px;border-radius:9px;background:#344b43}
    .phone-title{height:38px;border-bottom:1px solid var(--line);font-weight:800;color:var(--brand)}
    .phone-card{background:var(--green-soft);padding:13px;border-radius:10px;margin-top:15px}
    .phone-card b{display:block;font-size:13px}
    .phone-line{height:7px;background:#b7ccc2;border-radius:5px;margin-top:9px;width:74%}
    .phone-line.short{width:48%}
    .download-info p{color:#cbd5d0;margin:17px 0 25px}
    .download-details{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:25px 0}
    .detail{border:1px solid rgba(255,255,255,.18);border-radius:11px;padding:14px 16px}
    .detail small{display:block;color:#afc1b9;font-size:12px}
    .detail b{display:block;margin-top:4px;font-size:15px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:9px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(185,75,50,.18)}
    .btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
    .btn-secondary{border-color:#cfa99d;color:var(--brand);background:#fff}
    .btn-secondary:hover{background:var(--brand-soft);transform:translateY(-1px)}
    .download-panel .btn-secondary{background:transparent;color:#fff;border-color:#9db1a7;margin-left:10px}
    .download-panel .btn-secondary:hover{background:rgba(255,255,255,.1)}
    .methods{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .method-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:190px}
    .method-card:hover,.feature-card:hover,.step:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#d29a8b}
    .method-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:18px}
    .method-card h3{font-size:20px;margin-bottom:9px}
    .method-card p,.feature-card p,.step p{color:var(--muted);margin:0;font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px;transition:.25s ease}
    .step-num{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:24px}
    .step h3{font-size:18px;margin-bottom:8px}
    .feature-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:stretch}
    .feature-note{background:var(--brand);color:#fff;border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;justify-content:space-between}
    .feature-note h3{color:#fff;font-size:27px}
    .feature-note p{color:#f6dcd5;margin-top:14px}
    .feature-note .pill{background:rgba(255,255,255,.15);color:#fff}
    .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .feature-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:23px;transition:.25s ease}
    .feature-card h3{font-size:18px;margin-bottom:8px}
    .faq-wrap{max-width:860px}
    .faq-item{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden}
    .faq-item summary{list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;position:relative;padding-right:50px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";position:absolute;right:20px;color:var(--brand);font-size:21px}
    .faq-item[open] summary{color:var(--brand);border-bottom:1px solid var(--line)}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:16px 22px;color:var(--muted);font-size:14px}
    .update-box{background:#fffaf4;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:grid;grid-template-columns:180px 1fr auto;gap:22px;align-items:center}
    .update-date{color:var(--brand);font-weight:800}
    .update-box p{margin:0;color:var(--muted)}
    .support-band{background:var(--green-soft);padding:38px 42px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:30px}
    .support-band h2{font-size:25px}
    .support-band p{color:var(--muted);margin:8px 0 0}
    .site-footer{background:#263331;color:#dce5e0;padding:56px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}
    .footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
    .footer-desc{color:#aebdb6;max-width:250px}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h4{color:#fff;font-size:15px;margin-bottom:9px}
    .footer-col a{color:#aebdb6;font-size:14px}
    .footer-col a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#9eafa8;font-size:12px;flex-wrap:wrap}
    :focus-visible{outline:3px solid rgba(185,75,50,.35);outline-offset:3px}
    @media(max-width:1024px){
      .nav-wrap{gap:15px}.nav a{padding:8px 8px;font-size:14px}
      .page-intro{grid-template-columns:1fr 300px;gap:35px}
      .download-grid,.feature-layout{gap:40px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}
      .nav-wrap{justify-content:space-between}
      .menu-toggle{display:block}
      .nav{display:none;position:absolute;left:16px;right:16px;top:74px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}
      .nav a{padding:12px 14px}
      .nav-cta{text-align:center;margin-top:5px}
      .page-intro{display:block;padding:35px 0 42px}
      .intro-aside{margin-top:27px}
      .overview-grid{grid-template-columns:1fr 1fr}
      .overview-item{border-bottom:1px solid var(--line)}
      .overview-item:nth-child(2){border-right:0}
      .section{padding:58px 0}
      .download-grid,.feature-layout{grid-template-columns:1fr}
      .device-stage{height:360px}
      .steps{grid-template-columns:1fr 1fr}
      .update-box{grid-template-columns:1fr;gap:8px}
      .support-band{display:block;padding:28px}
      .support-band .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media(max-width:520px){
      h1{font-size:36px}
      .intro-text{font-size:16px}
      .overview-grid,.methods,.steps,.feature-list{grid-template-columns:1fr}
      .overview-item{border-right:0!important}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .download-panel .btn{width:100%;margin:6px 0 0}
      .feature-note{min-height:220px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }