/* roulang page: index */
:root{
  --ink:#191a19;--ink-soft:#303431;--muted:#737873;--paper:#f8f6f1;
  --cream:#efede7;--white:#fffdfa;--line:#deded7;--orange:#ed6c3b;
  --orange-dark:#c95227;--teal:#4d9588;--teal-pale:#e4f1ed;--radius:16px;
  --shadow:0 14px 35px rgba(28,30,27,.08);--max:1200px
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:.25s ease}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.navbar{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.5px}
.logo-mark{width:35px;height:35px;border-radius:11px;background:var(--orange);position:relative}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--white);border-radius:4px}
.logo-mark:before{width:16px;height:5px;left:10px;top:10px;transform:rotate(45deg)}
.logo-mark:after{width:16px;height:5px;left:10px;top:20px;transform:rotate(-45deg)}
.logo strong{font-size:19px}.logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{position:relative;padding:10px 13px;color:var(--ink-soft);font-size:14px;white-space:nowrap}
.nav-links a:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--orange);transform:scaleX(0);transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--orange-dark)}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.25s}
.nav-cta,.btn-primary{background:var(--orange);color:#fff}
.nav-cta:hover,.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(237,108,59,.22)}
.menu-toggle{display:none;background:transparent;font-size:25px;color:var(--ink)}
.hero{padding:82px 0 76px;background:var(--cream);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:2px;text-transform:uppercase}
.hero h1{font-size:clamp(40px,5vw,64px);line-height:1.16;letter-spacing:-2.5px;margin:18px 0 22px;max-width:650px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-copy{font-size:18px;color:var(--muted);max-width:590px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:#363a35;transform:translateY(-2px)}
.btn-outline{border:1px solid var(--ink);background:transparent;color:var(--ink)}.btn-outline:hover{background:var(--ink);color:#fff}
.hero-art{position:relative;min-height:330px}
.art-panel{position:absolute;background:var(--ink);color:#fff;border-radius:22px;box-shadow:var(--shadow)}
.art-main{width:79%;height:285px;right:0;top:20px;padding:27px}
.art-main .bar{height:8px;width:76px;background:var(--orange);border-radius:8px;margin-bottom:24px}
.art-main h3{font-size:25px;margin-bottom:22px}
.art-row{display:flex;align-items:center;justify-content:space-between;padding:15px 0;border-top:1px solid #414640;color:#d7dad3;font-size:13px}
.art-row b{color:#fff;font-size:15px}
.art-side{left:0;bottom:5px;width:43%;padding:21px;background:var(--white);color:var(--ink);border:1px solid var(--line)}
.art-side span{display:block;color:var(--teal);font-size:12px;font-weight:800;margin-bottom:6px}.art-side strong{font-size:21px}
.section{padding:88px 0}.section.alt{background:var(--cream)}.section.teal{background:var(--teal-pale)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}
.section h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-1px;margin-top:8px}
.section-intro{color:var(--muted);max-width:520px}
.text-link{color:var(--orange-dark);font-weight:700;font-size:14px}.text-link:hover{color:var(--ink)}
.auth-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.auth-card,.panel,.download-box,.guide-box,.form-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 7px 22px rgba(28,30,27,.04)}
.auth-card{padding:30px}.auth-card h3{font-size:22px;margin-bottom:22px}
.field-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{border-top:1px solid var(--line);padding-top:12px}.field span{display:block;color:var(--muted);font-size:13px}.field b{display:block;margin-top:4px}
.notice{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;justify-content:space-between}.notice .label{color:#ffb193;font-size:13px;font-weight:700}.notice h3{font-size:25px;line-height:1.35;margin:20px 0}.notice p{color:#c9cec6;font-size:14px}
.feature-mosaic{display:grid;grid-template-columns:1.3fr .8fr .8fr;grid-template-rows:1fr 1fr;gap:16px}.feature{padding:27px;border-radius:var(--radius);border:1px solid var(--line);background:var(--white);min-height:150px}.feature.large{grid-row:span 2;background:var(--ink);color:#fff;display:flex;flex-direction:column;justify-content:end}.feature h3{font-size:20px;margin:10px 0 7px}.feature p{font-size:14px;color:var(--muted)}.feature.large p{color:#c9cec6}.feature .icon{font-size:25px;color:var(--orange)}
.download-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:center}.device{height:365px;background:var(--ink);border-radius:30px;padding:14px;max-width:235px;margin:auto;box-shadow:18px 20px 0 rgba(237,108,59,.14)}.device-screen{height:100%;border-radius:20px;background:var(--cream);padding:25px 17px;color:var(--ink)}.device-screen .screen-top{height:9px;width:56px;border-radius:10px;background:var(--orange);margin-bottom:35px}.screen-card{padding:17px;background:#fff;border-radius:13px;margin-top:13px}.screen-card b{font-size:14px}.screen-lines{height:7px;background:#d9ddd6;border-radius:5px;margin-top:12px;width:75%}.download-box{padding:35px}.download-box h3{font-size:29px;margin:9px 0 12px}.download-box p{color:var(--muted)}.meta-row{display:flex;gap:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;margin:24px 0}.meta-row span{display:block;color:var(--muted);font-size:12px}.meta-row b{font-size:14px}.qr-line{display:flex;align-items:center;gap:18px}.qr{width:72px;height:72px;border:7px solid var(--ink);background:repeating-linear-gradient(45deg,#fff 0 4px,#222 4px 7px);border-radius:5px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{position:relative;padding:24px 20px 23px;border-top:3px solid var(--orange);background:var(--white);border-radius:0 0 14px 14px}.step-num{font-size:31px;font-weight:800;color:var(--orange)}.step h3{font-size:18px;margin:10px 0 7px}.step p{color:var(--muted);font-size:14px}
.news-layout{display:grid;grid-template-columns:1fr .88fr;gap:18px}.featured-news{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;min-height:320px;display:flex;flex-direction:column;justify-content:end}.tag{display:inline-block;border-radius:30px;padding:4px 10px;background:#fbe0d5;color:var(--orange-dark);font-size:12px;font-weight:700}.featured-news .tag{align-self:flex-start}.featured-news h3{font-size:28px;line-height:1.4;margin:18px 0 10px}.featured-news p{color:#cbd0c9;font-size:14px}.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:8px 25px}.news-item{display:block;padding:22px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-item:hover h3{color:var(--orange-dark)}.news-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.news-item h3{font-size:17px;margin:6px 0 3px}.news-item p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.empty-state{padding:50px;text-align:center;color:var(--muted);background:var(--white);border-radius:var(--radius);border:1px dashed var(--line)}
.announcement{background:var(--ink);color:#fff;border-radius:var(--radius);padding:20px 27px;display:flex;align-items:center;gap:24px}.announcement strong{color:#ffb193;white-space:nowrap}.announcement a{margin-left:auto;color:#fff;font-size:14px}.announcement a:hover{color:#ffb193}
.timeline{border-left:2px solid var(--line);padding-left:28px;display:grid;gap:25px}.update{position:relative}.update:before{content:"";position:absolute;width:11px;height:11px;background:var(--orange);border-radius:50%;left:-35px;top:8px}.update-top{display:flex;gap:12px;align-items:center}.version{font-weight:800;font-size:19px}.status{background:var(--teal-pale);color:var(--teal);padding:3px 9px;border-radius:20px;font-size:12px}.update p{color:var(--muted);font-size:14px}
.safety-box{display:grid;grid-template-columns:110px 1fr;gap:28px;align-items:center}.shield{width:86px;height:100px;background:var(--teal);clip-path:polygon(50% 0,92% 15%,86% 67%,50% 100%,14% 67%,8% 15%);display:grid;place-items:center;color:#fff;font-size:34px}.safety-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.safety-list b{display:block;margin-bottom:4px}.safety-list span{font-size:14px;color:#5f746d}
.scenes{display:flex;gap:14px;overflow:auto;padding-bottom:6px}.scene{min-width:210px;min-height:150px;padding:23px;border-radius:15px;background:var(--white);border:1px solid var(--line)}.scene:nth-child(2){background:#f5e4d8}.scene:nth-child(3){background:#e4eeee}.scene:nth-child(4){background:#e9e5dc}.scene h3{margin:25px 0 4px}.scene p{font-size:13px;color:var(--muted)}
.guide-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:25px}.guide-box{padding:28px}.guide-box h3{font-size:22px;margin-bottom:15px}.guide-menu{list-style:none}.guide-menu li{padding:12px 0;border-bottom:1px solid var(--line);color:var(--muted)}.guide-menu li:first-child{color:var(--orange-dark);font-weight:700}.guide-content{padding:28px;background:var(--ink);border-radius:var(--radius);color:#fff}.guide-content h3{font-size:24px;margin-bottom:12px}.guide-content p{color:#c9cec6}.guide-content ul{margin:18px 0 0 20px;color:#e5e8e1}
.channels{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.channel{padding:24px;background:var(--white);border:1px solid var(--line);border-radius:14px}.channel:hover{border-color:var(--orange);transform:translateY(-3px)}.channel b{display:block;font-size:17px;margin-bottom:6px}.channel span{font-size:13px;color:var(--muted)}
.faq-list{max-width:900px;margin:auto}.faq-item{border-top:1px solid var(--line)}.faq-q{width:100%;display:flex;justify-content:space-between;text-align:left;background:transparent;padding:20px 0;font-weight:700;color:var(--ink)}.faq-q span:last-child{color:var(--orange);font-size:22px}.faq-a{display:none;color:var(--muted);font-size:14px;padding:0 45px 20px 0}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q{color:var(--orange-dark)}
.feedback-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:35px;align-items:start}.contact-copy h2{margin-bottom:15px}.contact-copy p{color:var(--muted)}.contact-note{margin-top:25px;padding:16px;background:var(--teal-pale);color:#416b64;border-radius:10px;font-size:14px}.form-card{padding:26px;display:grid;gap:15px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.form-field input,.form-field select,.form-field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:#f7f7f3;outline:none}.form-field textarea{min-height:95px;resize:vertical}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(237,108,59,.13)}.form-card small{color:var(--muted)}
.bottom-cta{background:var(--ink);color:#fff;padding:45px 0}.bottom-flex{display:flex;align-items:center;justify-content:space-between;gap:25px}.bottom-flex h2{font-size:30px}.bottom-flex p{color:#c7ccc5;margin-top:5px}
.site-footer{background:#111311;color:#dfe3dc;padding:50px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid #343833}.footer-brand p{color:#929992;font-size:14px;max-width:280px;margin-top:15px}.footer-title{font-size:14px;color:#fff;font-weight:700;margin-bottom:14px}.footer-links{display:grid;gap:8px}.footer-links a{color:#929992;font-size:13px}.footer-links a:hover{color:#ff9b78}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#747b73;font-size:12px}.mobile-download{display:none}
@media(max-width:1100px){.nav-links{gap:0}.nav-links a{padding:10px 8px}.logo{min-width:210px}.hero-grid{gap:35px}.channels{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.container{width:min(var(--max),calc(100% - 34px))}.navbar{height:68px}.logo{min-width:0}.logo small{display:none}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--white);padding:12px 17px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:12px}.nav-cta{display:none}.menu-toggle{display:block;margin-left:auto}.mobile-download{display:inline-flex;background:var(--orange);color:#fff;border-radius:7px;padding:8px 11px;font-size:12px;font-weight:700}.hero{padding:58px 0}.hero-grid,.auth-grid,.download-wrap,.news-layout,.guide-layout,.feedback-grid{grid-template-columns:1fr}.hero-art{min-height:300px}.section{padding:62px 0}.feature-mosaic{grid-template-columns:1fr 1fr}.feature.large{grid-row:auto;grid-column:span 2;min-height:210px}.steps{grid-template-columns:1fr 1fr}.safety-box{grid-template-columns:75px 1fr}.safety-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.bottom-flex{align-items:flex-start;flex-direction:column}}
@media(max-width:520px){body{font-size:15px}.hero h1{font-size:38px;letter-spacing:-1.5px}.hero-copy{font-size:16px}.actions .btn{width:100%}.hero-art{transform:scale(.9);transform-origin:left center;margin-bottom:-25px}.section-head{display:block}.section-intro{margin-top:12px}.field-list,.form-row,.feature-mosaic{grid-template-columns:1fr}.feature.large{grid-column:auto}.download-box{padding:23px}.meta-row{gap:13px;flex-wrap:wrap}.qr-line{align-items:flex-start}.steps{grid-template-columns:1fr}.announcement{align-items:flex-start;flex-direction:column;gap:8px}.announcement a{margin-left:0}.safety-box{grid-template-columns:1fr}.shield{width:65px;height:75px;font-size:27px}.channels{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:span 2}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
      --ink:#191a19;--ink-soft:#303431;--muted:#737873;--paper:#f8f6f1;
      --cream:#efede7;--white:#fffdfa;--line:#deded7;--orange:#ed6c3b;
      --orange-dark:#c95227;--teal:#4d9588;--teal-pale:#e4f1ed;
      --radius:16px;--shadow:0 14px 35px rgba(28,30,27,.08);--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.5px}
    .logo-mark{width:35px;height:35px;border-radius:11px;background:var(--orange);position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--white);border-radius:4px}
    .logo-mark:before{width:16px;height:5px;left:10px;top:10px;transform:rotate(45deg)}
    .logo-mark:after{width:16px;height:5px;left:10px;top:20px;transform:rotate(-45deg)}
    .logo strong{font-size:19px}
    .logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:1px}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-links a{position:relative;padding:10px 13px;color:var(--ink-soft);font-size:14px;white-space:nowrap}
    .nav-links a:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--orange);transform:scaleX(0);transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--orange-dark)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.25s}
    .nav-cta,.btn-primary{background:var(--orange);color:#fff}
    .nav-cta:hover,.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(237,108,59,.22)}
    .menu-toggle{display:none;background:transparent;font-size:25px;color:var(--ink)}
    main{min-height:60vh}
    .article-hero{padding:58px 0 52px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:28px;flex-wrap:wrap}
    .breadcrumbs a:hover{color:var(--orange-dark)}
    .breadcrumbs .current{color:var(--ink-soft);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .article-kicker,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:2px}
    .article-hero h1{font-size:clamp(32px,5vw,56px);line-height:1.25;letter-spacing:-2px;max-width:900px;margin:14px 0 22px;word-break:break-word}
    .article-summary{max-width:790px;color:var(--muted);font-size:17px;margin:0 0 24px}
    .article-meta{display:flex;gap:22px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .tag{display:inline-block;border-radius:30px;padding:4px 11px;background:#fbe0d5;color:var(--orange-dark);font-size:12px;font-weight:700}
    .reading-section{padding:72px 0}
    .reading-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:48px;align-items:start;max-width:1160px;margin:auto}
    .article-body{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:42px 52px;box-shadow:0 7px 22px rgba(28,30,27,.04);overflow:hidden}
    .article-body h2{font-size:29px;line-height:1.35;margin:38px 0 15px}
    .article-body h3{font-size:21px;line-height:1.45;margin:28px 0 12px}
    .article-body p{margin:0 0 20px;color:#3f4540}
    .article-body ul,.article-body ol{padding-left:25px;margin:12px 0 24px;color:#3f4540}
    .article-body li{margin:8px 0}
    .article-body blockquote{margin:25px 0;padding:17px 20px;border-left:4px solid var(--orange);background:#fff1eb;color:var(--ink-soft);border-radius:0 10px 10px 0}
    .article-body img{border-radius:12px;margin:25px auto}
    .article-body table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
    .article-body th,.article-body td{border:1px solid var(--line);padding:11px;text-align:left}
    .article-body th{background:var(--cream)}
    .article-body a{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px}
    .article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
    .side-stack{display:grid;gap:16px;position:sticky;top:105px}
    .side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
    .side-card.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
    .side-card h3{font-size:18px;margin:0 0 13px}
    .side-card p{font-size:13px;color:var(--muted);margin:0}
    .side-card.dark p{color:#cbd0c9}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
    .side-list li:last-child{border-bottom:0}
    .side-list a:hover{color:var(--orange-dark)}
    .article-support{padding:0 0 78px}
    .support-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .support-card{padding:28px;background:var(--teal-pale);border-radius:var(--radius);border:1px solid #cce4dd}
    .support-card h2{font-size:22px;margin:0 0 9px}
    .support-card p{color:#56716a;margin:0 0 18px;font-size:14px}
    .btn-dark{background:var(--ink);color:#fff}
    .btn-dark:hover{background:#363a35;color:#fff;transform:translateY(-2px)}
    .btn-outline{border:1px solid var(--ink);background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:#fff}
    .bottom-cta{padding:45px 0;background:var(--ink);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-inner h2{font-size:28px;margin:0 0 7px}
    .cta-inner p{color:#cbd0c9;margin:0;font-size:14px}
    .site-footer{background:#121412;color:#fff;padding:54px 0 0}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#929992;font-size:13px;max-width:280px;margin-top:18px}
    .footer-title{font-size:14px;font-weight:700;margin-bottom:15px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#929992;font-size:13px}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid #2d302d;padding:19px 0 22px;display:flex;justify-content:space-between;gap:18px;color:#737873;font-size:12px;flex-wrap:wrap}
    .empty-state{text-align:center;padding:75px 25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
    .empty-icon{width:56px;height:56px;border-radius:50%;background:#fbe0d5;color:var(--orange-dark);display:grid;place-items:center;margin:0 auto 17px;font-size:25px}
    .empty-state h2{font-size:25px;margin:0 0 9px}
    .empty-state p{color:var(--muted);margin:0 0 22px}
    @media(max-width:1100px){
      .navbar{gap:18px}.logo{min-width:215px}.nav-links a{padding:10px 8px}
      .nav-links a:after{left:8px;right:8px}
      .reading-layout{grid-template-columns:minmax(0,1fr) 245px;gap:25px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.logo{min-width:0}.logo strong{font-size:17px}
      .menu-toggle{display:block;margin-left:auto;min-width:44px;min-height:44px}
      .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);padding:10px 16px 16px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}.nav-links a{padding:11px 10px}.nav-links a:after{left:10px;right:auto;width:32px}
      .nav-cta{display:none}.article-hero{padding:42px 0}.article-hero h1{letter-spacing:-1px}
      .reading-section{padding:42px 0}.reading-layout{display:block}.side-stack{position:static;margin-top:20px;grid-template-columns:1fr 1fr}
      .article-body{padding:28px 23px}.article-body h2{font-size:25px}
      .support-grid{grid-template-columns:1fr}.cta-inner{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .article-meta{gap:10px 16px}.side-stack{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}
      .article-body{border-radius:12px;padding:24px 18px}.article-body table{font-size:12px}
    }

/* roulang page: category1 */
:root{
      --ink:#191a19;--ink-soft:#303431;--muted:#737873;--paper:#f8f6f1;
      --cream:#efede7;--white:#fffdfa;--line:#deded7;--orange:#ed6c3b;
      --orange-dark:#c95227;--teal:#4d9588;--teal-pale:#e4f1ed;
      --radius:16px;--shadow:0 14px 35px rgba(28,30,27,.08);--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.5px}
    .logo-mark{width:35px;height:35px;border-radius:11px;background:var(--orange);position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--white);border-radius:4px}
    .logo-mark:before{width:16px;height:5px;left:10px;top:10px;transform:rotate(45deg)}
    .logo-mark:after{width:16px;height:5px;left:10px;top:20px;transform:rotate(-45deg)}
    .logo strong{font-size:19px}
    .logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:1px}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{position:relative;padding:10px 12px;color:var(--ink-soft);font-size:14px;white-space:nowrap}
    .nav-links a:after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--orange);transform:scaleX(0);transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--orange-dark)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.25s}
    .nav-cta,.btn-primary{background:var(--orange);color:#fff}
    .nav-cta:hover,.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(237,108,59,.22)}
    .menu-toggle{display:none;background:transparent;font-size:25px;color:var(--ink);padding:8px}
    .page-head{padding:55px 0 46px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--orange-dark)}
    .breadcrumb span:last-child{color:var(--ink-soft)}
    .eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:2px}
    .page-head h1{font-size:clamp(35px,5vw,58px);line-height:1.18;letter-spacing:-2px;margin:14px 0 15px}
    .page-head p{max-width:700px;color:var(--muted);font-size:17px;margin:0}
    .head-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .tag{display:inline-block;border-radius:30px;padding:5px 12px;background:#fbe0d5;color:var(--orange-dark);font-size:12px;font-weight:700}
    .tag.teal{background:var(--teal-pale);color:#39766c}
    .section{padding:78px 0}
    .section.alt{background:var(--cream)}
    .section.teal{background:var(--teal-pale)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:540px;margin:0}
    .authority-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .panel,.info-card,.timeline-card,.notice-card,.faq-wrap,.cta{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 7px 22px rgba(28,30,27,.04)}
    .panel{padding:30px}
    .panel h3{font-size:22px;margin:0 0 20px}
    .field-list{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}
    .field{padding:16px 0;border-top:1px solid var(--line)}
    .field span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
    .field b{font-size:15px;font-weight:700}
    .status-box{padding:28px;background:var(--ink);color:#fff;border-radius:var(--radius);min-height:100%}
    .status-icon{width:45px;height:45px;border-radius:13px;background:var(--orange);display:grid;place-items:center;font-size:23px;margin-bottom:24px}
    .status-box h3{font-size:23px;margin:0 0 12px}
    .status-box p{color:#cbd0c9;font-size:14px;margin:0 0 24px}
    .status-line{padding:13px 0;border-top:1px solid #414640;display:flex;justify-content:space-between;gap:15px;font-size:13px}
    .status-line b{color:#ffb193}
    .summary-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .info-card{padding:25px}
    .info-card .number{font-size:30px;color:var(--orange);font-weight:800;line-height:1}
    .info-card h3{font-size:18px;margin:15px 0 6px}
    .info-card p{font-size:14px;color:var(--muted);margin:0}
    .timeline{position:relative;max-width:900px;margin:auto}
    .timeline:before{content:"";position:absolute;left:18px;top:8px;bottom:8px;width:2px;background:#d4d8d2}
    .timeline-card{position:relative;margin:0 0 18px 55px;padding:22px 25px}
    .timeline-card:before{content:"";position:absolute;left:-46px;top:27px;width:13px;height:13px;border:3px solid var(--orange);background:var(--paper);border-radius:50%}
    .timeline-card h3{font-size:19px;margin:0 0 5px}
    .timeline-card p{color:var(--muted);font-size:14px;margin:0}
    .timeline-date{font-size:12px;color:var(--orange-dark);font-weight:700;margin-bottom:5px}
    .notice-card{padding:30px;display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--ink);color:#fff}
    .notice-card h2{font-size:26px;margin:0 0 8px}
    .notice-card p{color:#cbd0c9;margin:0;font-size:14px}
    .btn-outline{border:1px solid var(--ink);background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:#fff}
    .notice-card .btn-outline{border-color:#7b817b;color:#fff;white-space:nowrap}
    .notice-card .btn-outline:hover{border-color:var(--orange);background:var(--orange)}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .guide-box{padding:25px}
    .guide-no{font-size:13px;color:var(--orange);font-weight:800}
    .guide-box h3{font-size:19px;margin:10px 0 7px}
    .guide-box p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{max-width:900px;margin:auto;padding:8px 25px}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    details:last-child{border:0}
    summary{cursor:pointer;list-style:none;font-weight:700;padding-right:25px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";position:absolute;right:0;color:var(--orange);font-size:20px;line-height:1}
    details[open] summary:after{content:"－"}
    details[open] summary{color:var(--orange-dark)}
    details p{color:var(--muted);font-size:14px;margin:12px 0 2px}
    .cta{padding:35px 40px;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:28px;margin:0 0 6px}
    .cta p{margin:0;color:#ffe9df;font-size:14px}
    .cta .btn-dark{background:var(--ink);color:#fff;white-space:nowrap}
    .cta .btn-dark:hover{background:#363a35}
    .site-footer{background:var(--ink);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#aeb5ae;font-size:13px;max-width:260px;margin:18px 0 0}
    .footer-title{font-weight:700;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#aeb5ae;font-size:13px}
    .footer-links a:hover{color:#ffb193}
    .copyright{border-top:1px solid #363b36;margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#929992;font-size:12px}
    :focus-visible{outline:3px solid rgba(237,108,59,.45);outline-offset:3px}
    @media(max-width:1100px){
      .navbar{gap:14px}.logo{min-width:210px}.nav-links a{padding-left:8px;padding-right:8px;font-size:13px}
      .nav-links a:after{left:8px;right:8px}
    }
    @media(max-width:900px){
      .nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);padding:15px 24px;flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:12px}.nav-links a:after{left:12px;right:auto;width:35px}
      .menu-toggle{display:block;margin-left:auto}.nav-cta{padding:10px 13px}
      .authority-layout{grid-template-columns:1fr}.summary-strip,.guide-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:600px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.site-header{position:relative}.nav-links{top:70px}
      .logo{min-width:0}.logo strong{font-size:16px}.logo small{font-size:10px}
      .nav-cta{font-size:12px;padding:9px 11px}
      .page-head{padding:38px 0 34px}.page-head h1{font-size:38px}.page-head p{font-size:15px}
      .section{padding:55px 0}.field-list,.summary-strip,.guide-grid{grid-template-columns:1fr}
      .panel{padding:23px}.section-head{display:block}.section-intro{margin-top:12px}
      .timeline-card{margin-left:42px;padding:20px}.timeline:before{left:12px}.timeline-card:before{left:-37px}
      .notice-card,.cta{display:block;padding:27px}.notice-card .btn,.cta .btn{margin-top:20px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }

/* roulang page: category2 */
:root{
  --ink:#191a19;--ink-soft:#303431;--muted:#737873;--paper:#f8f6f1;
  --cream:#efede7;--white:#fffdfa;--line:#deded7;--orange:#ed6c3b;
  --orange-dark:#c95227;--teal:#4d9588;--teal-pale:#e4f1ed;
  --radius:16px;--shadow:0 14px 35px rgba(28,30,27,.08);--max:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none;transition:.25s ease}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.navbar{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.5px}
.logo-mark{width:35px;height:35px;border-radius:11px;background:var(--orange);position:relative;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--white);border-radius:4px}
.logo-mark:before{width:16px;height:5px;left:10px;top:10px;transform:rotate(45deg)}
.logo-mark:after{width:16px;height:5px;left:10px;top:20px;transform:rotate(-45deg)}
.logo strong{font-size:19px}
.logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{position:relative;padding:10px 13px;color:var(--ink-soft);font-size:14px;white-space:nowrap}
.nav-links a:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--orange);transform:scaleX(0);transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--orange-dark)}
.nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.25s}
.nav-cta,.btn-primary{background:var(--orange);color:#fff}
.nav-cta:hover,.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 18px rgba(237,108,59,.22)}
.menu-toggle{display:none;background:transparent;font-size:25px;color:var(--ink)}
.page-head{padding:64px 0 46px;background:var(--cream);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:24px}
.breadcrumb a:hover{color:var(--orange-dark)}
.breadcrumb strong{color:var(--ink-soft);font-weight:700}
.page-head-grid{display:flex;justify-content:space-between;align-items:end;gap:35px}
.eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:2px}
.page-head h1{font-size:clamp(36px,5vw,58px);line-height:1.15;letter-spacing:-2px;margin:12px 0 15px}
.page-head p{max-width:650px;color:var(--muted);font-size:17px;margin:0}
.head-note{min-width:190px;border-left:3px solid var(--orange);padding:12px 0 12px 20px;color:var(--muted);font-size:13px}
.head-note b{display:block;color:var(--ink);font-size:18px;margin-bottom:3px}
.section{padding:78px 0}
.section.alt{background:var(--cream)}
.section.teal{background:var(--teal-pale)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
.section h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-1px;margin:8px 0 0}
.section-intro{color:var(--muted);max-width:540px;margin:0}
.news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
.featured-news{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;min-height:390px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
.featured-news:before{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(237,108,59,.5);border-radius:50%;right:-55px;top:-55px}
.featured-news:after{content:"";position:absolute;width:105px;height:105px;border:1px solid rgba(77,149,136,.45);border-radius:50%;right:18px;top:18px}
.featured-news>*{position:relative;z-index:1}
.tag{display:inline-block;border-radius:30px;padding:4px 10px;background:#fbe0d5;color:var(--orange-dark);font-size:12px;font-weight:700}
.featured-news .tag{align-self:flex-start}
.featured-news h3{font-size:28px;line-height:1.4;margin:18px 0 10px}
.featured-news p{color:#cbd0c9;font-size:14px;margin:0}
.feature-meta{display:flex;gap:20px;color:#aeb6ad;font-size:12px;margin-top:22px}
.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:8px 25px}
.news-item{display:block;padding:22px 0;border-bottom:1px solid var(--line)}
.news-item:last-child{border:0}
.news-item:hover h3{color:var(--orange-dark)}
.news-meta{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:12px}
.news-item h3{font-size:17px;margin:6px 0 3px;line-height:1.5}
.news-item p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-arrow{color:var(--orange-dark);font-weight:700;font-size:13px;margin-top:10px;display:inline-block}
.empty-state{padding:70px 20px;text-align:center;color:var(--muted)}
.empty-icon{width:52px;height:52px;border-radius:16px;background:var(--cream);color:var(--orange);display:grid;place-items:center;font-size:25px;margin:0 auto 14px}
.filter-strip{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px 22px;background:var(--white);border:1px solid var(--line);border-radius:13px;margin-bottom:28px}
.filter-strip span{font-size:13px;color:var(--muted)}
.filter-pill{padding:7px 14px;background:var(--cream);border-radius:30px;font-size:13px;color:var(--ink-soft)}
.filter-pill.current{background:var(--orange);color:#fff}
.topic-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
.topic-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:190px}
.topic-card.dark{background:var(--ink);color:#fff}
.topic-card.teal{background:var(--teal-pale)}
.topic-card .number{font-size:13px;color:var(--orange-dark);font-weight:800}
.topic-card h3{font-size:21px;margin:16px 0 7px}
.topic-card p{font-size:14px;color:var(--muted);margin:0}
.topic-card.dark p{color:#cbd0c9}
.topic-card.teal p{color:#52756d}
.timeline{border-left:2px solid #c8ddd7;margin:10px 0 0 10px;padding-left:28px}
.timeline-item{position:relative;padding:0 0 28px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--orange);left:-35px;top:8px;border:3px solid var(--teal-pale)}
.timeline-item b{display:block;font-size:17px;margin-bottom:4px}
.timeline-item span{font-size:14px;color:var(--muted)}
.faq-list{max-width:850px;margin:auto}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:11px;overflow:hidden}
.faq-question{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 21px;font-weight:700;cursor:pointer}
.faq-question:hover{color:var(--orange-dark)}
.faq-question span:last-child{font-size:22px;color:var(--orange);transition:.25s}
.faq-answer{display:none;padding:0 21px 19px;color:var(--muted);font-size:14px}
.faq-item.open{border-left:3px solid var(--orange)}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta-band{padding:42px 0;background:var(--ink);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-inner h2{font-size:28px;margin:0 0 7px}
.cta-inner p{color:#cbd0c9;margin:0;font-size:14px}
.site-footer{background:var(--ink);color:#fff;border-top:1px solid #343934;padding:54px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#aeb6ad;font-size:13px;max-width:270px;margin-top:17px}
.footer-title{font-size:14px;font-weight:800;margin-bottom:15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#aeb6ad;font-size:13px}
.footer-links a:hover{color:#ff9b76}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #343934;margin-top:42px;padding-top:18px;color:#929992;font-size:12px}
@media(max-width:1100px){
  .navbar{gap:16px}.logo{min-width:210px}.nav-links a{padding:10px 8px}.nav-links a:after{left:8px;right:8px}
}
@media(max-width:850px){
  .nav-links{display:none;position:absolute;left:24px;right:24px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .nav-links.show{display:flex}.nav-links a{padding:12px 14px}.nav-cta{margin-left:auto}.menu-toggle{display:block}
  .navbar{height:70px}.page-head-grid,.cta-inner{align-items:flex-start;flex-direction:column}.head-note{border-left:0;border-top:2px solid var(--orange);padding:12px 0 0}
  .news-layout,.topic-grid{grid-template-columns:1fr}.featured-news{min-height:300px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media(max-width:576px){
  .container{width:min(var(--max),calc(100% - 30px))}
  .logo{min-width:0}.logo strong{font-size:16px}.logo small{font-size:10px}
  .nav-cta{padding:10px 13px;font-size:13px}.navbar{gap:10px}
  .page-head{padding:45px 0 35px}.page-head h1{font-size:38px}.section{padding:58px 0}
  .section-head{display:block}.section-intro{margin-top:12px}.news-list{padding:5px 17px}.featured-news{padding:27px}
  .copyright{display:block}.copyright span{display:block;margin-top:6px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
}

/* roulang page: category3 */
:root{
      --ink:#191a19;--ink-soft:#303431;--muted:#737873;--paper:#f8f6f1;
      --cream:#efede7;--white:#fffdfa;--line:#deded7;--orange:#ed6c3b;
      --orange-dark:#c95227;--teal:#4d9588;--teal-pale:#e4f1ed;
      --radius:16px;--shadow:0 14px 35px rgba(28,30,27,.08);--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.5px}
    .logo-mark{width:35px;height:35px;border-radius:11px;background:var(--orange);position:relative;flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--white);border-radius:4px}
    .logo-mark:before{width:16px;height:5px;left:10px;top:10px;transform:rotate(45deg)}
    .logo-mark:after{width:16px;height:5px;left:10px;top:20px;transform:rotate(-45deg)}
    .logo strong{font-size:19px}
    .logo small{display:block;color:var(--muted);font-size:11px;font-weight:500;letter-spacing:1px}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-links a{position:relative;padding:10px 13px;color:var(--ink-soft);font-size:14px;white-space:nowrap}
    .nav-links a:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--orange);transform:scaleX(0);transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--orange-dark)}
    .nav-links a:hover:after,.nav-links a.active:after{transform:scaleX(1)}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:9px;padding:12px 20px;font-weight:700;font-size:14px;transition:.25s}
    .nav-cta,.btn-primary{background:var(--orange);color:#fff}
    .nav-cta:hover,.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(237,108,59,.22)}
    .menu-toggle{display:none;background:transparent;font-size:25px;color:var(--ink)}
    .page-intro{padding:62px 0 54px;background:var(--cream);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px}
    .breadcrumb a:hover{color:var(--orange-dark)}
    .breadcrumb span{color:#aaa}
    .intro-grid{display:grid;grid-template-columns:1fr 360px;gap:55px;align-items:end}
    .eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:2px}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-2px;margin:15px 0 17px}
    .intro-copy{max-width:680px;color:var(--muted);font-size:17px;margin:0}
    .intro-note{border-left:3px solid var(--orange);padding:18px 20px;background:rgba(255,253,250,.7);border-radius:0 12px 12px 0}
    .intro-note strong{display:block;font-size:14px;margin-bottom:5px}
    .intro-note span{display:block;color:var(--muted);font-size:13px}
    .section{padding:82px 0}
    .section.alt{background:var(--cream)}
    .section.teal{background:var(--teal-pale)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:530px;margin:0}
    .download-layout{display:grid;grid-template-columns:1fr .82fr;gap:20px}
    .download-box,.panel,.version-card,.faq-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 7px 22px rgba(28,30,27,.04)}
    .download-box{padding:34px;position:relative;overflow:hidden}
    .download-box:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-70px;top:-70px;background:#f9d8ca}
    .download-box h3{font-size:27px;margin:0 0 10px;position:relative;z-index:1}
    .download-box p{color:var(--muted);font-size:14px;max-width:540px;position:relative;z-index:1}
    .device-preview{height:150px;background:var(--ink);border-radius:13px;margin:26px 0;display:flex;align-items:center;justify-content:center;gap:12px;color:#fff;position:relative;z-index:1}
    .device-preview:before{content:"";width:94px;height:124px;border:4px solid #777d76;border-radius:17px;background:linear-gradient(145deg,#fff 0 12%,#ed6c3b 12% 25%,#303431 25% 100%);box-shadow:18px 8px 0 -4px #d4d1c9}
    .device-preview span{font-size:13px;color:#d4d8d1}
    .download-actions{display:flex;gap:11px;flex-wrap:wrap;position:relative;z-index:1}
    .btn-dark{background:var(--ink);color:#fff}
    .btn-dark:hover{background:#363a35;color:#fff;transform:translateY(-2px)}
    .btn-outline{border:1px solid var(--ink);background:transparent;color:var(--ink)}
    .btn-outline:hover{background:var(--ink);color:#fff}
    .qr-panel{padding:30px;display:flex;flex-direction:column;justify-content:center}
    .qr-box{width:142px;height:142px;margin:0 auto 18px;border:10px solid var(--ink);background-color:#fff;background-image:linear-gradient(45deg,#191a19 25%,transparent 25%,transparent 75%,#191a19 75%),linear-gradient(45deg,#191a19 25%,transparent 25%,transparent 75%,#191a19 75%);background-size:22px 22px;background-position:0 0,11px 11px}
    .qr-panel{text-align:center}
    .qr-panel strong{font-size:18px}
    .qr-panel p{color:var(--muted);font-size:13px;margin:8px 0 0}
    .info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .panel{padding:25px}
    .panel h3{font-size:19px;margin:0 0 12px}
    .panel p{color:var(--muted);font-size:14px;margin:0}
    .label{font-size:12px;color:var(--muted);display:block;margin-bottom:5px}
    .value{font-weight:700;font-size:16px}
    .support-table{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .support-table th,.support-table td{text-align:left;padding:18px 22px;border-bottom:1px solid var(--line);font-size:14px}
    .support-table th{background:var(--ink);color:#fff;font-weight:600}
    .support-table tr:last-child td{border-bottom:0}
    .status{display:inline-flex;align-items:center;gap:7px;color:#39786d;font-weight:700;font-size:13px}
    .status:before{content:"";width:8px;height:8px;background:var(--teal);border-radius:50%}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:24px 20px;border-top:3px solid var(--orange);background:var(--white);border-radius:12px;box-shadow:0 5px 18px rgba(28,30,27,.04)}
    .step-num{color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:1px}
    .step h3{font-size:18px;margin:12px 0 7px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .timeline{border-left:2px solid #c6ddd7;padding-left:28px;max-width:850px}
    .timeline-item{position:relative;padding:0 0 28px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--teal);left:-35px;top:8px;border:3px solid var(--teal-pale)}
    .timeline-item time{color:var(--teal);font-size:13px;font-weight:700}
    .timeline-item h3{font-size:19px;margin:5px 0}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0}
    .security-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:35px;align-items:center}
    .shield{width:90px;height:105px;margin:auto;background:var(--teal);clip-path:polygon(50% 0,90% 15%,84% 68%,50% 100%,16% 68%,10% 15%);display:flex;align-items:center;justify-content:center;color:#fff;font-size:34px}
    .security-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .security-list b{display:block;margin-bottom:4px}
    .security-list span{font-size:14px;color:#5f746d}
    .faq-wrap{padding:8px 25px}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{width:100%;padding:20px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;gap:20px;font-weight:700;color:var(--ink)}
    .faq-question:hover{color:var(--orange-dark)}
    .faq-question span:last-child{color:var(--orange);font-size:22px;line-height:1}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .cta-band{padding:48px 0;background:var(--ink);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-inner h2{font-size:29px;margin:0 0 7px}
    .cta-inner p{color:#cbd0c9;margin:0;font-size:14px}
    .site-footer{background:var(--ink);color:#fff;border-top:1px solid #3e433e;padding-top:52px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:43px}
    .footer-brand p{color:#929992;font-size:13px;max-width:275px;margin:17px 0 0}
    .footer-title{font-weight:700;margin-bottom:14px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:#929992;font-size:13px}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid #3e433e;padding:17px 0;display:flex;justify-content:space-between;gap:20px;color:#929992;font-size:12px}
    @media(max-width:992px){
      .navbar{gap:15px}.logo{min-width:210px}.nav-links a{padding:10px 7px;font-size:13px}
      .intro-grid,.download-layout,.security-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.menu-toggle{display:block;margin-left:auto}
      .nav-cta{padding:10px 13px;font-size:13px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:9px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:12px 14px}.nav-links a:after{left:14px;right:auto;width:34px}
      .page-intro{padding:43px 0}.section{padding:60px 0}.section-head{display:block}
      .section-intro{margin-top:12px}.info-grid{grid-template-columns:1fr 1fr}
      .cta-inner{display:block}.cta-inner .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}
      .copyright{display:block}.copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      h1{font-size:37px;letter-spacing:-1.2px}.intro-copy{font-size:15px}
      .info-grid,.steps,.security-list{grid-template-columns:1fr}
      .download-box,.qr-panel,.panel{padding:24px}.support-table th,.support-table td{padding:14px 12px;font-size:13px}
      .download-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr;gap:25px}
    }