/* roulang page: index */
:root{
  --ink:#17191c;
  --ink-soft:#24282d;
  --paper:#f3f1eb;
  --surface:#fffefa;
  --line:#dcdad2;
  --muted:#70736f;
  --lime:#c8f23b;
  --lime-dark:#9eba24;
  --violet:#7667d8;
  --coral:#d98465;
  --white:#fff;
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(20,25,25,.10);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
a:hover{color:var(--violet)}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.topline{background:var(--lime);color:var(--ink);font-size:13px;font-weight:700}
.topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
.topline a{text-decoration:underline;text-underline-offset:3px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.96);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
.navbar{min-height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
.logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
.logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
.logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
.nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none;flex:1}
.nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
.nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
.nav-list a:hover,.nav-list a.active{color:#fff}
.nav-list a:hover:after,.nav-list a.active:after{right:0}
.nav-actions{display:flex;gap:9px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
.btn-outline{border-color:#555b60;color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
.btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
.btn:focus-visible,.nav-list a:focus-visible,.faq-q:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
.menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
.hero{background:var(--ink);color:#fff;padding:78px 0 84px;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,242,59,.2);border-radius:50%;right:-150px;top:-230px}
.hero:after{content:"";position:absolute;width:290px;height:290px;border:1px solid rgba(118,103,216,.3);border-radius:50%;right:60px;bottom:-190px}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
.eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
.hero h1{font-size:clamp(34px,4.7vw,64px);line-height:1.15;letter-spacing:-.045em;margin:20px 0 22px;max-width:680px}
.hero-copy{color:#bec2bd;max-width:620px;font-size:17px;margin:0 0 30px}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:29px;color:#9da39e;font-size:13px}
.hero-note span{display:flex;align-items:center;gap:7px}
.hero-note b{width:7px;height:7px;background:var(--violet);border-radius:50%}
.interface{background:#e9e8e0;color:var(--ink);border-radius:24px;padding:17px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.interface-top{background:var(--surface);border-radius:15px;padding:18px 19px;display:flex;justify-content:space-between;align-items:center}
.interface-brand{font-weight:900;font-size:19px}
.status{font-size:12px;color:#597000;background:#edf8c7;border-radius:50px;padding:5px 10px;font-weight:800}
.screen{margin-top:13px;background:var(--ink-soft);border-radius:16px;padding:22px;color:#fff;min-height:265px;position:relative;overflow:hidden}
.screen:before{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(200,242,59,.3);border-radius:50%;right:-55px;top:-100px}
.screen-label{color:var(--lime);font-size:12px;font-weight:800}
.screen h3{font-size:27px;line-height:1.3;margin:17px 0 14px;max-width:300px}
.screen-line{height:8px;background:#4c5354;border-radius:10px;width:75%;margin:9px 0}
.screen-line.short{width:47%}
.screen-button{display:inline-block;background:var(--lime);color:var(--ink);padding:8px 15px;border-radius:8px;margin-top:14px;font-size:13px;font-weight:800}
.interface-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:13px}
.mini-box{background:var(--surface);padding:12px;border-radius:12px;font-size:12px;color:var(--muted)}
.mini-box strong{display:block;color:var(--ink);font-size:14px;margin-top:3px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
.section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
.section h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
.section-intro{max-width:470px;color:var(--muted);margin:0}
.quick-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;gap:12px}
.quick-item{border:1px solid var(--line);background:var(--surface);padding:22px 20px;min-height:174px;border-radius:var(--radius-sm);transition:.2s}
.quick-item:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}
.quick-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--lime-dark)}
.quick-number{font-size:12px;color:var(--violet);font-weight:900}
.quick-item:first-child .quick-number{color:var(--lime)}
.quick-item h3{font-size:19px;margin:29px 0 7px}
.quick-item p{font-size:13px;color:var(--muted);margin:0}
.quick-item:first-child p{color:#aeb4af}
.quick-arrow{float:right;font-size:24px;color:var(--lime)}
.download-section{background:#e2e1d9}
.download-grid{display:grid;grid-template-columns:1fr .9fr;gap:50px;align-items:stretch}
.feature-list{display:grid;gap:0;margin-top:29px}
.feature-row{display:grid;grid-template-columns:45px 1fr;gap:14px;padding:18px 0;border-top:1px solid var(--line)}
.feature-row:first-child{border-top:0}
.feature-index{width:31px;height:31px;border-radius:50%;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:13px;font-weight:900}
.feature-row h3{font-size:17px;margin:0 0 3px}
.feature-row p{margin:0;color:var(--muted);font-size:14px}
.download-card{background:var(--surface);border-radius:var(--radius);padding:28px;box-shadow:0 10px 35px rgba(25,25,20,.07)}
.download-card h3{font-size:23px;margin:0 0 8px}
.download-card>p{font-size:14px;color:var(--muted);margin:0 0 22px}
.code-box{height:145px;border:1px dashed #a9aaa1;border-radius:13px;display:grid;place-items:center;text-align:center;color:var(--muted);font-size:13px;margin-bottom:18px;background:#f7f6f0}
.code-box span{display:block;font-size:26px;color:var(--violet);font-weight:900}
.card-actions{display:flex;gap:10px;flex-wrap:wrap}
.info-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:19px}
.info-tag{padding:7px 10px;border-radius:8px;background:#eeede6;color:var(--muted);font-size:12px}
.web-panel{background:var(--ink);color:#fff;border-radius:24px;padding:37px 42px;display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center}
.web-panel h2{margin:7px 0 10px;font-size:32px}
.web-panel p{color:#b8bdb8;margin:0;max-width:650px}
.web-panel .eyebrow{color:#bcaeff}
.web-panel .eyebrow i{background:var(--coral)}
.web-side{text-align:right}.web-side small{display:block;color:#aeb3ae;margin-top:10px;font-size:12px}
.news-section{background:var(--surface)}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:145px 105px 1fr auto;gap:20px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line);transition:.2s}
.news-item:hover{padding-left:8px;background:#fbfaf5}
.news-time{font-size:13px;color:var(--muted)}
.news-tag{display:inline-block;color:#655cc0;background:#eeecff;padding:5px 9px;border-radius:6px;font-size:12px;font-weight:800;width:max-content}
.news-content h3{font-size:17px;margin:0 0 3px}
.news-content p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-link{font-size:20px;color:var(--violet);padding:8px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.process-step{padding:27px 22px 15px 0;position:relative}
.process-step:not(:last-child):after{content:"→";position:absolute;right:18px;top:36px;color:var(--lime-dark);font-size:25px}
.process-num{font-size:34px;color:var(--violet);font-weight:900;line-height:1}
.process-step h3{font-size:17px;margin:18px 0 6px}
.process-step p{color:var(--muted);font-size:14px;margin:0;padding-right:20px}
.faq-wrap{max-width:850px;margin:auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:22px 5px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink);font-size:16px}
.faq-q span{font-size:25px;font-weight:400;color:var(--violet);transition:.2s}
.faq-a{display:none;color:var(--muted);font-size:14px;padding:0 40px 22px 5px}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{padding:0 0 88px}
.cta-box{background:var(--lime);border-radius:var(--radius);padding:38px 43px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-box h2{margin:0 0 6px;font-size:30px;line-height:1.25}
.cta-box p{margin:0;color:#465217;font-size:14px}
.cta-buttons{display:flex;gap:10px;flex-shrink:0}
.cta .btn-primary{background:var(--ink);color:#fff}.cta .btn-primary:hover{background:#353a3d}
.cta .btn-light{background:#e9f9ad;border-color:#a7c42d}
.site-footer{background:var(--ink);color:#fff;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:43px}
.footer-brand p{color:#9ea59f;font-size:13px;max-width:330px;margin:18px 0 0}
.footer-title{font-size:14px;margin:5px 0 15px;color:#fff}
.footer-links{display:grid;gap:8px}.footer-links a{color:#9ea59f;font-size:13px}.footer-links a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid #373d40;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#858d87;font-size:12px}
.mobile-actions{display:none}
@media(max-width:1024px){
 .navbar{gap:18px}.logo{min-width:230px}.nav-list{gap:14px}
 .hero-grid{gap:35px}.quick-grid{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,var(--container))}
 .topline .container{height:32px;font-size:11px}.topline a{display:none}
 .navbar{min-height:68px;justify-content:space-between}.logo{min-width:0}.logo-text{font-size:13px;max-width:220px}
 .menu-toggle{display:block}.nav-list,.nav-actions{display:none}
 .navbar.menu-open{flex-wrap:wrap}.navbar.menu-open .nav-list{display:grid;order:3;flex-basis:100%;gap:0;padding:8px 0 14px}
 .navbar.menu-open .nav-list a{padding:12px 0}.navbar.menu-open .nav-list a:after{bottom:5px}
 .navbar.menu-open .nav-actions{display:flex;order:4;flex-basis:100%;padding-bottom:14px}
 .hero{padding:57px 0 62px}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:39px}.hero-copy{font-size:16px}
 .interface{transform:none;max-width:520px;margin:auto}
 .section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:15px}
 .download-grid{grid-template-columns:1fr;gap:25px}.web-panel{grid-template-columns:1fr;padding:29px 25px}.web-side{text-align:left}
 .news-item{grid-template-columns:90px 1fr auto;gap:10px}.news-tag{grid-column:2;grid-row:1}.news-content{grid-column:1 / -1;grid-row:2}.news-link{grid-column:3;grid-row:1}
 .process{grid-template-columns:1fr 1fr;gap:15px}.process-step{padding-right:20px}.process-step:after{display:none}
 .cta-box{display:block;padding:29px 24px}.cta-buttons{margin-top:20px}
 .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:8px}
 .mobile-actions{position:fixed;display:grid;grid-template-columns:1fr 1fr;bottom:0;left:0;right:0;z-index:30;background:#fff;padding:8px 12px;gap:8px;box-shadow:0 -5px 20px rgba(0,0,0,.15)}
 .mobile-actions .btn{min-height:42px}.mobile-actions .btn-outline{background:var(--ink);color:#fff}
}
@media(max-width:520px){
 .hero h1{font-size:33px}.hero-buttons,.card-actions,.cta-buttons{display:grid;grid-template-columns:1fr}
 .hero-buttons .btn,.card-actions .btn,.cta-buttons .btn{width:100%}
 .quick-grid{grid-template-columns:1fr}.quick-item{min-height:145px}
 .interface-bottom{grid-template-columns:1fr}.screen{min-height:230px}.screen h3{font-size:23px}
 .download-card{padding:22px 18px}.news-item{grid-template-columns:78px 1fr auto;font-size:12px}
 .process{grid-template-columns:1fr}.process-step{border-bottom:1px solid var(--line);padding:20px 0}
 .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
}

/* roulang page: article */
:root{
      --ink:#17191c;
      --ink-soft:#24282d;
      --paper:#f3f1eb;
      --surface:#fffefa;
      --line:#dcdad2;
      --muted:#70736f;
      --lime:#c8f23b;
      --lime-dark:#9eba24;
      --violet:#7667d8;
      --coral:#d98465;
      --white:#fff;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(20,25,25,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--violet)}
    img{max-width:100%;height:auto;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{background:var(--lime);color:var(--ink);font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topline a{text-decoration:underline;text-underline-offset:3px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.97);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
    .logo:hover{color:#fff}
    .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
    .logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
    .logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
    .nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none;flex:1}
    .nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
    .nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
    .nav-list a:hover,.nav-list a.active{color:#fff}
    .nav-list a:hover:after,.nav-list a.active:after{right:0}
    .nav-actions{display:flex;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
    .btn-outline{border-color:#555b60;color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
    .btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
    .btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
    .btn:focus-visible,.nav-list a:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
    .menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
    .article-hero{background:var(--ink);color:#fff;padding:70px 0 76px;position:relative;overflow:hidden}
    .article-hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(200,242,59,.18);border-radius:50%;right:-180px;top:-270px}
    .article-hero:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(118,103,216,.35);border-radius:50%;right:110px;bottom:-190px}
    .article-hero-inner{position:relative;z-index:1;max-width:900px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
    .breadcrumb-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:#aeb4af;font-size:13px;margin-bottom:23px}
    .breadcrumb-line a:hover{color:var(--lime)}
    .breadcrumb-line .slash{color:#59605e}
    .article-hero h1{font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-.045em;margin:18px 0 20px;max-width:880px}
    .article-lead{max-width:770px;color:#bec2bd;font-size:17px;margin:0}
    .article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:27px;color:#9da39e;font-size:13px}
    .badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:800}
    .badge-lime{background:var(--lime);color:var(--ink)}
    .badge-violet{background:rgba(118,103,216,.22);color:#c8c0ff}
    .article-layout{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:58px;align-items:start;padding:76px 0 88px}
    .article-content{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,4vw,52px);box-shadow:0 10px 32px rgba(25,25,20,.05);min-width:0}
    .article-content h2{font-size:30px;line-height:1.3;margin:35px 0 14px;letter-spacing:-.025em}
    .article-content h3{font-size:22px;line-height:1.4;margin:28px 0 10px}
    .article-content h2:first-child,.article-content h3:first-child{margin-top:0}
    .article-content p{color:#414540;margin:0 0 19px}
    .article-content ul,.article-content ol{padding-left:25px;color:#414540;margin:12px 0 24px}
    .article-content li{margin:7px 0}
    .article-content blockquote{border-left:4px solid var(--lime);background:#f0f1e9;border-radius:0 12px 12px 0;padding:17px 20px;margin:25px 0;color:#4c5149}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff}
    .article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left}
    .article-content th{background:#ecece4;font-weight:800}
    .article-content a{color:#6257bd;text-decoration:underline;text-underline-offset:3px}
    .article-content a:hover{color:var(--coral)}
    .article-content img{border-radius:12px;margin:24px auto}
    .empty-state{padding:35px 10px;text-align:center}
    .empty-state-mark{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#ecece4;color:var(--violet);font-size:25px;margin:0 auto 16px}
    .empty-state h2{margin:0 0 8px;font-size:26px}
    .empty-state p{color:var(--muted);margin:0 0 20px}
    .article-side{position:sticky;top:110px;display:grid;gap:16px}
    .side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:23px}
    .side-card.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .side-card h2,.side-card h3{font-size:19px;line-height:1.35;margin:0 0 12px}
    .side-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
    .dark p{color:#aeb4af}
    .side-links{display:grid;gap:9px}
    .side-links a{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:9px;font-size:14px;font-weight:700}
    .dark .side-links a{border-color:#3b4145}
    .side-links a span{color:var(--violet);font-size:18px}
    .dark .side-links a span{color:var(--lime)}
    .related-section{background:#e2e1d9;padding:74px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:28px}
    .section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
    .section-head h2{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:470px;color:var(--muted);margin:0}
    .related-track{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;display:grid;grid-template-columns:1fr auto;gap:18px;transition:.2s}
    .related-card:hover{transform:translateY(-3px);border-color:var(--lime-dark);box-shadow:var(--shadow)}
    .related-card h3{font-size:18px;line-height:1.45;margin:10px 0 6px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .card-arrow{font-size:26px;color:var(--violet);align-self:center}
    .cta-section{padding:76px 0}
    .cta-box{background:var(--ink);color:#fff;border-radius:var(--radius);padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
    .cta-box:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(200,242,59,.26);border-radius:50%;right:30px;top:-115px}
    .cta-box h2{font-size:clamp(26px,3vw,38px);line-height:1.25;margin:0 0 8px;position:relative;z-index:1}
    .cta-box p{color:#aeb4af;margin:0;position:relative;z-index:1}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1;flex-shrink:0}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand .logo{margin-bottom:17px}
    .footer-brand p{max-width:340px;color:#aeb4af;font-size:13px;margin:0}
    .footer-title{font-size:14px;margin:4px 0 15px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#aeb4af;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #383e42;padding-top:19px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#858d88;font-size:12px}
    .mobile-actions{display:none}
    @media (max-width:1024px){
      .navbar{gap:20px}.logo{min-width:230px}.nav-list{gap:16px}
      .nav-actions .btn{padding:10px 12px}
      .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:28px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{height:32px;font-size:11px}
      .topline span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .navbar{min-height:67px;justify-content:space-between}
      .logo{min-width:0}.logo-text{font-size:13px}
      .nav-list{display:none;position:absolute;left:16px;right:16px;top:75px;background:var(--ink-soft);border:1px solid #41484c;border-radius:14px;padding:10px;flex-direction:column;align-items:stretch;gap:0;box-shadow:var(--shadow)}
      .nav-list.open{display:flex}
      .nav-list a{display:block;padding:12px 13px}
      .nav-list a:after{bottom:5px;left:13px}
      .nav-actions{display:none}
      .menu-toggle{display:block}
      .article-hero{padding:52px 0 58px}
      .article-hero h1{font-size:35px}
      .article-lead{font-size:16px}
      .article-layout{display:block;padding:42px 0 55px}
      .article-side{position:static;margin-top:22px}
      .article-content{padding:25px 20px}
      .article-content h2{font-size:25px}
      .related-section,.cta-section{padding:52px 0}
      .related-track{grid-template-columns:1fr}
      .cta-box{padding:30px 24px;display:block}
      .cta-actions{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .mobile-actions{display:flex;position:fixed;z-index:30;bottom:12px;left:12px;right:12px;gap:8px;padding:7px;background:rgba(23,25,28,.94);border:1px solid #4a5154;border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.22)}
      .mobile-actions .btn{flex:1;padding:9px 8px;min-height:42px}
      body{padding-bottom:70px}
    }
    @media (max-width:520px){
      .breadcrumb-line{font-size:12px}
      .article-hero h1{font-size:30px}
      .article-meta{gap:9px}
      .section-head{display:block}
      .section-intro{margin-top:10px}
      .related-card{grid-template-columns:1fr}
      .card-arrow{display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }

/* roulang page: category1 */
:root{
      --ink:#17191c;
      --ink-soft:#24282d;
      --paper:#f3f1eb;
      --surface:#fffefa;
      --line:#dcdad2;
      --muted:#70736f;
      --lime:#c8f23b;
      --lime-dark:#9eba24;
      --violet:#7667d8;
      --coral:#d98465;
      --white:#fff;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(20,25,25,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--violet)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{background:#101214;color:#adb2ad;font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline a{text-decoration:underline;text-underline-offset:3px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.97);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
    .logo:hover{color:#fff}
    .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
    .logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
    .logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
    .nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none;flex:1}
    .nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
    .nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
    .nav-list a:hover,.nav-list a.active{color:#fff}
    .nav-list a:hover:after,.nav-list a.active:after{right:0}
    .nav-actions{display:flex;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
    .btn-outline{border-color:#555b60;color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
    .btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
    .btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
    .btn:focus-visible,.nav-list a:focus-visible,.faq-q:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
    .menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
    .hero{background:var(--ink);color:#fff;padding:68px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:580px;height:580px;border:1px solid rgba(200,242,59,.2);border-radius:50%;right:-190px;top:-250px}
    .hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(118,103,216,.32);border-radius:50%;right:110px;bottom:-210px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
    .hero h1{font-size:clamp(34px,4.7vw,62px);line-height:1.15;letter-spacing:-.045em;margin:20px 0 22px;max-width:700px}
    .hero-copy{color:#bec2bd;max-width:620px;font-size:17px;margin:0 0 30px}
    .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:29px;color:#9da39e;font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .hero-note b{width:7px;height:7px;background:var(--violet);border-radius:50%}
    .download-preview{background:#eef0e8;color:var(--ink);border-radius:24px;padding:18px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .preview-top{display:flex;justify-content:space-between;align-items:center;padding:5px 4px 18px;font-size:12px;color:var(--muted)}
    .preview-brand{font-size:19px;font-weight:900}
    .preview-body{background:var(--surface);border-radius:17px;padding:24px}
    .preview-label{color:var(--violet);font-size:12px;font-weight:800}
    .preview-body h2{font-size:27px;line-height:1.25;margin:10px 0}
    .preview-body p{font-size:14px;color:var(--muted);margin:0 0 20px}
    .download-status{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:15px;font-size:13px}
    .status-dot{display:inline-block;width:8px;height:8px;background:var(--lime-dark);border-radius:50%;margin-right:6px}
    .section{padding:86px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
    .section h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:490px;color:var(--muted);margin:0}
    .route-panel{display:grid;grid-template-columns:1.2fr .8fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
    .route-main{padding:36px}
    .route-side{background:var(--ink);color:#fff;padding:36px;display:flex;flex-direction:column;justify-content:space-between}
    .route-main h3,.route-side h3{font-size:25px;margin:0 0 10px}
    .route-main p,.route-side p{color:var(--muted);margin:0 0 24px}
    .route-side p{color:#b8beb8}
    .route-tags{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
    .tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:8px;background:#eeede6;color:var(--muted);font-size:12px}
    .tag.dark{background:#34393e;color:#dce1db}
    .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:28px 23px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-num{color:var(--violet);font-size:13px;font-weight:900}
    .step h3{font-size:18px;margin:18px 0 7px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .device-section{background:#e2e1d9}
    .device-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:start}
    .device-card{background:var(--surface);border-radius:var(--radius);padding:30px;border:1px solid var(--line)}
    .device-card h3{font-size:23px;margin:0 0 8px}
    .device-card>p{font-size:14px;color:var(--muted);margin:0 0 20px}
    .device-list{list-style:none;margin:0;padding:0}
    .device-list li{display:flex;gap:13px;padding:14px 0;border-top:1px solid var(--line);font-size:14px}
    .device-list strong{display:block;font-size:15px}
    .device-list span{color:var(--muted)}
    .device-icon{width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--lime);display:grid;place-items:center;flex:0 0 28px;font-size:12px;font-weight:900}
    .notice-box{border-left:4px solid var(--coral);background:#f8f5ec;padding:20px 22px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted);font-size:14px}
    .faq-list{border-top:1px solid var(--line);max-width:900px}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;border:0;background:none;text-align:left;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
    .faq-q span:last-child{font-size:24px;color:var(--violet);font-weight:400}
    .faq-a{color:var(--muted);font-size:14px;padding:0 42px 21px 4px}
    .faq-a p{margin:0}
    .cta{background:var(--violet);color:#fff;padding:55px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(26px,3vw,40px);margin:0 0 8px}
    .cta p{color:#e1ddff;margin:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{margin-bottom:17px}
    .footer-brand p{color:#aeb4af;font-size:13px;max-width:330px;margin:0}
    .footer-title{font-size:14px;margin:3px 0 16px}
    .footer-links{display:grid;gap:9px;color:#aeb4af;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #34393d;margin-top:42px;padding-top:19px;color:#858b86;font-size:12px}
    @media(max-width:1024px){
      .navbar{gap:18px}.logo{min-width:235px}.nav-list{gap:15px}
      .nav-actions{display:none}.hero-grid,.route-panel,.device-grid{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{height:32px}
      .navbar{min-height:66px;justify-content:space-between}
      .logo{min-width:0}.logo-text{font-size:13px}
      .menu-toggle{display:block}
      .nav-list{display:none;position:absolute;top:66px;left:0;right:0;background:var(--ink);padding:10px 22px 20px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid #34393d}
      .nav-list.open{display:flex}
      .nav-list a{display:block;padding:12px 0}
      .nav-list a:after{bottom:7px}
      .hero{padding:54px 0 60px}.hero-grid,.route-panel,.device-grid{grid-template-columns:1fr}
      .hero h1{font-size:42px}.download-preview{transform:none}
      .section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .route-main,.route-side{padding:27px}
      .cta-inner{display:block}.cta-actions{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .hero h1{font-size:35px}.hero-copy{font-size:15px}
      .hero-buttons,.cta-actions{display:grid;grid-template-columns:1fr}
      .hero-buttons .btn,.cta-actions .btn{width:100%}
      .steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)!important}.step:last-child{border-bottom:0!important}
      .footer-grid{grid-template-columns:1fr}.topline .container span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    }

/* roulang page: category2 */
:root{
      --ink:#17191c;
      --ink-soft:#24282d;
      --paper:#f3f1eb;
      --surface:#fffefa;
      --line:#dcdad2;
      --muted:#70736f;
      --lime:#c8f23b;
      --lime-dark:#9eba24;
      --violet:#7667d8;
      --coral:#d98465;
      --white:#fff;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(20,25,25,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--violet)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{height:36px;background:#101214;color:#bec2bd;font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline a{text-decoration:underline;text-underline-offset:3px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.97);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
    .logo:hover{color:#fff}
    .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
    .logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
    .logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
    nav{flex:1}
    .nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none}
    .nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
    .nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
    .nav-list a:hover,.nav-list a.active{color:#fff}
    .nav-list a:hover:after,.nav-list a.active:after{right:0}
    .nav-actions{display:flex;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
    .btn-outline{border-color:#555b60;color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
    .btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
    .btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
    .btn:focus-visible,.nav-list a:focus-visible,.faq-q:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
    .menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
    .page-hero{background:var(--ink);color:#fff;padding:68px 0 74px;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(200,242,59,.22);border-radius:50%;right:-140px;top:-250px}
    .page-hero:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(118,103,216,.35);border-radius:50%;right:120px;bottom:-190px}
    .hero-content{position:relative;z-index:1;max-width:820px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
    .page-hero h1{font-size:clamp(34px,5vw,60px);line-height:1.16;letter-spacing:-.045em;margin:19px 0 20px}
    .hero-copy{color:#bec2bd;max-width:700px;font-size:17px;margin:0}
    .crumbs{margin-top:25px;color:#9da39e;font-size:13px}
    .crumbs a{text-decoration:underline;text-underline-offset:3px}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:500px;color:var(--muted);margin:0}
    .entry-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .entry-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
    .entry-panel.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .entry-panel h3{font-size:25px;line-height:1.3;margin:12px 0 10px}
    .entry-panel p{color:var(--muted);margin:0 0 22px}
    .dark p{color:#b5bbb5}
    .status{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:8px;background:#edf6c9;color:#56631d;font-size:12px;font-weight:800}
    .status i{width:7px;height:7px;background:var(--lime-dark);border-radius:50%}
    .dark .status{background:rgba(200,242,59,.13);color:var(--lime)}
    .route-box{margin-top:23px;padding:18px;border:1px dashed #bdbcb4;border-radius:12px;background:#f6f4ee}
    .dark .route-box{border-color:#555b60;background:#24282d}
    .route-label{font-size:12px;color:var(--muted);margin-bottom:5px}
    .dark .route-label{color:#9da39e}
    .route-value{font-weight:800;word-break:break-word}
    .entry-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .path-strip{background:#e2e1d9}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 25px 12px 0;border-bottom:1px solid var(--line);position:relative}
    .step:not(:last-child){margin-right:28px}
    .step:not(:last-child):after{content:"→";position:absolute;right:0;top:30px;color:var(--violet);font-size:25px}
    .step-num{display:grid;place-items:center;width:34px;height:34px;background:var(--ink);color:var(--lime);border-radius:50%;font-size:13px;font-weight:900;margin-bottom:15px}
    .step h3{font-size:18px;margin:0 0 6px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface)}
    .compare-card h3{margin:0 0 8px;font-size:19px}
    .compare-card p{margin:0;color:var(--muted);font-size:14px}
    .compare-card.featured{border-color:var(--violet);box-shadow:0 10px 28px rgba(118,103,216,.12)}
    .bullet-list{list-style:none;padding:0;margin:19px 0 0}
    .bullet-list li{padding:10px 0;border-top:1px solid var(--line);font-size:14px}
    .bullet-list li:before{content:"✓";color:var(--violet);font-weight:900;margin-right:9px}
    .notice{display:flex;gap:16px;align-items:flex-start;padding:21px 24px;background:#fff7ed;border-left:4px solid var(--coral);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#5e5149}
    .notice strong{display:block;color:var(--ink);margin-bottom:3px}
    .faq-wrap{max-width:880px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;padding:21px 4px;background:none;border:0;display:flex;justify-content:space-between;text-align:left;font-weight:800;color:var(--ink)}
    .faq-q span:last-child{font-size:22px;color:var(--violet);line-height:1}
    .faq-a{display:none;padding:0 34px 20px 4px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .cta{background:var(--ink);color:#fff;padding:48px 0}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:clamp(26px,3vw,39px);margin:0 0 8px}
    .cta p{color:#b5bbb5;margin:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#111315;color:#fff;padding:54px 0 24px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{min-width:0;margin-bottom:17px}
    .footer-brand p{color:#9da39e;max-width:370px;font-size:13px;margin:0}
    .footer-title{font-size:14px;margin:5px 0 15px}
    .footer-links{display:grid;gap:9px;color:#aeb4af;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #303439;margin-top:38px;padding-top:18px;color:#818782;font-size:12px}
    @media(max-width:1024px){
      .navbar{gap:18px}.logo{min-width:240px}.nav-list{gap:15px}
      .nav-actions{display:none}.entry-layout{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{white-space:nowrap;overflow:hidden}
      .navbar{min-height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      nav{display:none}
      nav.show{display:block;position:absolute;left:0;right:0;top:68px;background:var(--ink);padding:8px 16px 18px;border-bottom:1px solid #34383b}
      nav.show .nav-list{display:grid;gap:0}
      nav.show .nav-list a{display:block;padding:12px 0}
      nav.show .nav-list a:after{bottom:5px}
      .logo{min-width:0}.logo-text{font-size:13px}
      .page-hero{padding:53px 0 60px}.section{padding:60px 0}
      .section-head{display:block}.section-intro{margin-top:13px}
      .steps,.compare{grid-template-columns:1fr}
      .step:not(:last-child){margin-right:0}.step:not(:last-child):after{content:"↓";right:12px;top:auto;bottom:-17px}
      .cta-box{display:block}.cta-actions{margin-top:24px}
      .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){
      .page-hero h1{font-size:35px}.hero-copy{font-size:15px}
      .entry-panel{padding:23px}.entry-panel h3{font-size:22px}
      .entry-actions .btn{width:100%}.compare-card{padding:21px}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category3 */
:root{
      --ink:#17191c;--ink-soft:#24282d;--paper:#f3f1eb;--surface:#fffefa;
      --line:#dcdad2;--muted:#70736f;--lime:#c8f23b;--lime-dark:#9eba24;
      --violet:#7667d8;--coral:#d98465;--white:#fff;--radius:20px;
      --radius-sm:12px;--shadow:0 18px 50px rgba(20,25,25,.10);--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--violet)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{height:36px;background:#111315;color:#cfd4ce;font-size:12px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline strong{color:var(--lime);font-weight:800}
    .topline a{text-decoration:underline;text-underline-offset:3px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.97);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
    .logo:hover{color:#fff}
    .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
    .logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
    .logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
    .nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none;flex:1}
    .nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
    .nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
    .nav-list a:hover,.nav-list a.active{color:#fff}
    .nav-list a:hover:after,.nav-list a.active:after{right:0}
    .nav-actions{display:flex;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
    .btn-outline{border-color:#555b60;color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
    .btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
    .btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
    .btn:focus-visible,.nav-list a:focus-visible,.faq-q:focus-visible,.menu-toggle:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
    .menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
    .hero{background:var(--ink);color:#fff;padding:72px 0 78px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:550px;height:550px;border:1px solid rgba(200,242,59,.18);border-radius:50%;right:-180px;top:-270px}
    .hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(118,103,216,.3);border-radius:50%;right:90px;bottom:-210px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
    .hero h1{font-size:clamp(34px,4.6vw,60px);line-height:1.16;letter-spacing:-.045em;margin:19px 0 20px;max-width:680px}
    .hero-copy{color:#bec2bd;max-width:630px;font-size:17px;margin:0 0 28px}
    .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:27px;color:#9da39e;font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .hero-note b{width:7px;height:7px;background:var(--violet);border-radius:50%}
    .update-board{background:#f6f5ef;color:var(--ink);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
    .board-name{font-weight:900;font-size:19px}
    .status{font-size:12px;color:#557300;background:#e7f5b9;border-radius:20px;padding:5px 10px;font-weight:800}
    .board-title{font-size:25px;line-height:1.3;font-weight:900;margin:27px 0 18px}
    .board-row{display:flex;gap:13px;padding:15px 0;border-top:1px solid var(--line)}
    .board-dot{width:29px;height:29px;border-radius:9px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:12px;font-weight:900;flex:none}
    .board-row h3{font-size:15px;margin:0 0 3px}
    .board-row p{margin:0;color:var(--muted);font-size:13px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:480px;color:var(--muted);margin:0}
    .news-layout{display:grid;grid-template-columns:1.28fr .72fr;gap:38px;align-items:start}
    .timeline{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:122px 104px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-item:hover{padding-left:9px;border-color:var(--lime-dark)}
    .news-date{font-size:13px;color:var(--muted);font-weight:700}
    .tag{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:5px 9px;background:#e9e8e0;color:var(--muted);font-size:12px;font-weight:800;white-space:nowrap}
    .tag.lime{background:var(--lime);color:var(--ink)}
    .tag.violet{background:#e5e1ff;color:#5549ad}
    .news-item h3{font-size:17px;margin:0 0 4px;line-height:1.4}
    .news-item p{color:var(--muted);font-size:13px;margin:0}
    .news-arrow{font-size:23px;color:var(--violet)}
    .side-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:29px;position:sticky;top:115px}
    .side-card h3{font-size:24px;line-height:1.3;margin:10px 0 13px}
    .side-card p{color:#adb3ae;font-size:14px;margin:0 0 22px}
    .side-list{list-style:none;padding:0;margin:20px 0 26px}
    .side-list li{border-top:1px solid #3a3e42;padding:13px 0;color:#dce0da;font-size:14px}
    .side-list li:before{content:"✓";color:var(--lime);font-weight:900;margin-right:9px}
    .notice-section{background:#e2e1d9}
    .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .notice-card{background:var(--surface);padding:25px;border-radius:var(--radius-sm);border:1px solid var(--line);min-height:205px}
    .notice-card:nth-child(2){border-top:4px solid var(--violet)}
    .notice-card:nth-child(3){border-top:4px solid var(--coral)}
    .notice-icon{font-size:24px;color:var(--violet);font-weight:900}
    .notice-card h3{font-size:19px;margin:16px 0 7px}
    .notice-card p{font-size:14px;color:var(--muted);margin:0}
    .path-section{background:var(--surface)}
    .path-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .path-step{padding:28px 23px;min-height:178px;border-right:1px solid var(--line);position:relative}
    .path-step:last-child{border-right:0}
    .path-step strong{display:block;color:var(--violet);font-size:13px;margin-bottom:25px}
    .path-step h3{font-size:18px;margin:0 0 6px}
    .path-step p{font-size:13px;color:var(--muted);margin:0}
    .faq-section{background:#eeece5}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;border:0;background:transparent;text-align:left;padding:21px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}
    .faq-q span:last-child{font-size:24px;color:var(--violet);transition:.2s}
    .faq-a{display:none;padding:0 42px 21px 4px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta{background:var(--ink);color:#fff;padding:68px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(28px,3.5vw,44px);margin:0 0 8px;line-height:1.2}
    .cta p{color:#adb3ae;margin:0;max-width:650px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex:none}
    .site-footer{background:#111315;color:#fff;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{min-width:0;margin-bottom:16px}
    .footer-brand p{color:#929994;font-size:13px;max-width:330px;margin:0}
    .footer-title{font-size:14px;margin:4px 0 15px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:13px;color:#969c97}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #303437;margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#777e79;font-size:12px}
    .mobile-actions{display:none}
    @media (max-width:1024px){
      .navbar{gap:18px}.logo{min-width:235px}.nav-list{gap:15px}
      .nav-actions{display:none}.hero-grid{gap:38px}.news-layout{grid-template-columns:1fr}.side-card{position:static}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{white-space:nowrap;overflow:hidden}.topline a{display:none}
      .navbar{min-height:68px;justify-content:space-between}.logo{min-width:0}.logo-text{font-size:13px}
      .menu-toggle{display:block}.nav-list{display:none;position:absolute;left:0;right:0;top:68px;background:var(--ink);padding:12px 20px 20px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid #3d4145}
      .site-header.menu-open .nav-list{display:flex}.nav-list a{display:block;padding:13px 0}.nav-list a:after{bottom:7px}
      .hero{padding:56px 0 62px}.hero-grid{grid-template-columns:1fr;gap:38px}.hero h1{font-size:39px}
      .section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .news-item{grid-template-columns:85px 1fr auto;gap:11px}.news-item .tag{grid-column:2;grid-row:1}.news-item .news-content{grid-column:1 / 3;grid-row:2}.news-arrow{grid-column:3;grid-row:2}
      .notice-grid{grid-template-columns:1fr}.path-track{grid-template-columns:1fr}.path-step{border-right:0;border-bottom:1px solid var(--line);min-height:auto}.path-step:last-child{border-bottom:0}
      .cta-inner{display:block}.cta-actions{margin-top:25px}.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-bottom:6px}
      .mobile-actions{position:fixed;display:grid;grid-template-columns:1fr 1fr;gap:8px;bottom:12px;left:12px;right:12px;z-index:30;padding:8px;background:rgba(23,25,28,.94);border-radius:14px;box-shadow:0 8px 28px rgba(0,0,0,.25)}
      .mobile-actions .btn{min-height:42px;padding:8px 10px}
    }
    @media (max-width:520px){
      .hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-buttons .btn{width:100%}
      .update-board{padding:21px;transform:none}.board-title{font-size:22px}
      .news-item{grid-template-columns:1fr auto}.news-item .tag{grid-column:1;grid-row:1;justify-self:start}.news-item .news-date{grid-column:1;grid-row:2}.news-item .news-content{grid-column:1;grid-row:3}.news-arrow{grid-column:2;grid-row:3}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category4 */
:root{
      --ink:#17191c;--ink-soft:#24282d;--paper:#f3f1eb;--surface:#fffefa;
      --line:#dcdad2;--muted:#70736f;--lime:#c8f23b;--lime-dark:#9eba24;
      --violet:#7667d8;--coral:#d98465;--white:#fff;--radius:20px;
      --radius-sm:12px;--shadow:0 18px 50px rgba(20,25,25,.10);--container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--violet)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .topline{background:#101214;color:#c9cdc7;font-size:13px}
    .topline .container{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topline strong{color:var(--lime);font-weight:800}
    .topline a{text-decoration:underline;text-underline-offset:3px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,25,28,.97);color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;min-width:280px}
    .logo:hover{color:#fff}
    .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--lime);position:relative;display:grid;place-items:center;color:var(--ink);font-weight:900}
    .logo-mark:after{content:"";width:10px;height:10px;border:2px solid var(--ink);border-radius:50%}
    .logo-text{font-size:15px;line-height:1.3;font-weight:800;letter-spacing:.01em}
    .nav-list{display:flex;align-items:center;gap:25px;margin:0;padding:0;list-style:none;flex:1}
    .nav-list a{color:#d9dbd7;font-size:14px;position:relative;padding:26px 0;white-space:nowrap}
    .nav-list a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--lime);transition:.25s}
    .nav-list a:hover,.nav-list a.active{color:#fff}
    .nav-list a:hover:after,.nav-list a.active:after{right:0}
    .nav-actions{display:flex;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:800;transition:.2s ease;min-height:44px}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#ddff6b;color:var(--ink);transform:translateY(-2px);box-shadow:0 7px 18px rgba(200,242,59,.22)}
    .btn-outline{border-color:#555b60;color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);background:rgba(200,242,59,.1);color:#fff}
    .btn-light{background:var(--surface);color:var(--ink);border-color:var(--line)}
    .btn-light:hover{border-color:var(--violet);transform:translateY(-2px)}
    .btn:focus-visible,.nav-list a:focus-visible,.faq-q:focus-visible,.menu-toggle:focus-visible{outline:3px solid var(--violet);outline-offset:3px}
    .menu-toggle{display:none;background:none;color:#fff;border:1px solid #586067;border-radius:9px;padding:8px 11px}
    .hero{background:var(--ink);color:#fff;padding:68px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(200,242,59,.18);border-radius:50%;right:-190px;top:-260px}
    .hero:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(118,103,216,.32);border-radius:50%;right:120px;bottom:-205px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow i{display:block;width:8px;height:8px;background:var(--lime);border-radius:50%}
    .hero h1{font-size:clamp(34px,4.5vw,60px);line-height:1.16;letter-spacing:-.045em;margin:19px 0 21px;max-width:700px}
    .hero-copy{color:#bec2bd;max-width:650px;font-size:17px;margin:0 0 29px}
    .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:#9da39e;font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .hero-note b{width:7px;height:7px;background:var(--violet);border-radius:50%}
    .help-map{background:#252a2e;border:1px solid #41484c;border-radius:var(--radius);padding:27px;box-shadow:0 20px 45px rgba(0,0,0,.18)}
    .map-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #42484a;padding-bottom:18px;margin-bottom:22px}
    .interface-brand{font-weight:900;font-size:19px}
    .status{font-size:12px;color:var(--lime);display:flex;align-items:center;gap:7px}
    .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .help-route{display:grid;gap:12px}
    .route-row{display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:14px 12px;background:#30363a;border-radius:11px}
    .route-num{width:27px;height:27px;display:grid;place-items:center;border-radius:50%;background:var(--violet);color:#fff;font-size:12px;font-weight:800}
    .route-row strong{font-size:14px}
    .route-row small{display:block;color:#aab0ac;font-size:12px}
    .route-arrow{color:var(--lime);font-size:20px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
    .section-kicker{color:var(--violet);font-weight:900;font-size:13px;letter-spacing:.08em}
    .section h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:490px;color:var(--muted);margin:0}
    .check-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:54px;align-items:start}
    .check-panel{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px}
    .check-panel h3{font-size:24px;margin:0 0 10px}
    .check-panel p{color:#bfc4bf;margin:0 0 22px}
    .check-list{list-style:none;padding:0;margin:0}
    .check-list li{display:flex;gap:12px;padding:15px 0;border-top:1px solid #3b4144;color:#d9ddd8}
    .check-list li:before{content:"✓";color:var(--lime);font-weight:900}
    .notice-stack{display:grid;gap:14px}
    .notice{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:21px 23px;display:grid;grid-template-columns:44px 1fr;gap:14px;transition:.2s}
    .notice:hover{transform:translateX(4px);border-color:var(--lime-dark);box-shadow:var(--shadow)}
    .notice-icon{width:38px;height:38px;border-radius:11px;background:#eeece4;color:var(--violet);display:grid;place-items:center;font-weight:900}
    .notice h3{font-size:18px;margin:0 0 4px}
    .notice p{font-size:14px;color:var(--muted);margin:0}
    .steps-section{background:#e2e1d9}
    .step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .step-track:before{content:"";position:absolute;top:25px;left:8%;right:8%;height:1px;background:#bbbcb4}
    .step{position:relative;padding:0 22px 0 0}
    .step-dot{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--lime);font-weight:900;position:relative;z-index:1;margin-bottom:18px}
    .step h3{font-size:18px;margin:0 0 7px}
    .step p{font-size:14px;color:var(--muted);margin:0;max-width:220px}
    .faq-section{background:var(--surface)}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
    .faq-lead p{color:var(--muted);margin:18px 0 24px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;border:0;background:none;text-align:left;padding:21px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}
    .faq-q span:last-child{font-size:24px;color:var(--violet);line-height:1;transition:.2s}
    .faq-a{display:none;color:var(--muted);font-size:14px;padding:0 38px 21px 4px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg);color:var(--coral)}
    .related{padding:64px 0}
    .related-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px}
    .related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;min-height:160px;transition:.2s}
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--violet)}
    .related-card:first-child{background:var(--violet);color:#fff;border-color:var(--violet)}
    .related-card small{font-size:12px;opacity:.75}
    .related-card h3{font-size:20px;margin:14px 0 7px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .related-card:first-child p{color:#eeeaff}
    .cta{background:var(--lime);padding:54px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{font-size:clamp(25px,3vw,39px);line-height:1.2;margin:0 0 7px}
    .cta p{margin:0;color:#485126}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .cta .btn-primary{background:var(--ink);color:#fff}
    .cta .btn-primary:hover{background:#30353a}
    .cta .btn-light{background:rgba(255,255,255,.58);border-color:rgba(23,25,28,.15)}
    .site-footer{background:var(--ink);color:#fff;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
    .footer-brand .logo{min-width:0;margin-bottom:17px}
    .footer-brand p{color:#aeb4af;font-size:13px;max-width:330px;margin:0}
    .footer-title{font-size:14px;color:var(--lime);margin:6px 0 14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#c7cbc6}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #353a3e;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#929994;font-size:12px}
    .mobile-actions{display:none}
    @media(max-width:1024px){
      .navbar{gap:18px}.logo{min-width:235px}.nav-list{gap:16px}
      .nav-actions .btn{padding:10px 12px}.hero-grid{gap:35px}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .topline .container{height:32px;font-size:11px}.topline span:last-child{display:none}
      .navbar{min-height:68px;justify-content:space-between}.logo{min-width:0}.logo-text{font-size:13px}
      .menu-toggle{display:block}.nav-list,.nav-actions{display:none}
      .site-header.menu-open .nav-list{display:flex;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:15px 22px 24px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid #3d4245}
      .site-header.menu-open .nav-list a{display:block;padding:12px 0}.nav-list a:after{bottom:5px}
      .site-header.menu-open .nav-actions{display:flex;position:absolute;top:260px;left:22px;right:22px;padding-bottom:18px}
      .hero{padding:55px 0 60px}.hero-grid,.check-grid,.faq-layout{grid-template-columns:1fr;gap:32px}
      .hero h1{font-size:39px}.hero-copy{font-size:16px}
      .section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .step-track{grid-template-columns:1fr 1fr;gap:28px 15px}.step-track:before{display:none}.step{padding:0}
      .related-grid{grid-template-columns:1fr}
      .cta-inner{display:block}.cta-actions{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:6px}
      .mobile-actions{position:fixed;display:grid;grid-template-columns:1fr 1fr;gap:8px;bottom:0;left:0;right:0;padding:9px 12px calc(9px + env(safe-area-inset-bottom));background:rgba(23,25,28,.96);z-index:30}
      .mobile-actions .btn{min-height:42px;padding:8px 10px}
      body{padding-bottom:66px}
    }
    @media(max-width:520px){
      .hero h1{font-size:34px}.hero-buttons,.hero-buttons .btn{width:100%}
      .help-map{padding:20px}.route-row{grid-template-columns:30px 1fr auto}
      .step-track{grid-template-columns:1fr}.notice{grid-template-columns:36px 1fr;padding:18px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* 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}