/* roulang page: index */
:root{
  --plum:#55245f;
  --plum-deep:#241b2b;
  --plum-soft:#eee4f0;
  --coral:#f07854;
  --coral-deep:#d95f40;
  --mint:#5e9d8d;
  --paper:#faf7f2;
  --cream:#f3ede6;
  --ink:#2e2632;
  --muted:#796f7b;
  --line:#e5ddd8;
  --white:#fffdfb;
  --radius:18px;
  --shadow:0 16px 38px rgba(54,31,48,.08);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,box-shadow .25s ease}
a:hover{color:var(--coral)}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{border:0;cursor:pointer}
:focus-visible{outline:3px solid rgba(240,120,84,.45);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{height:78px;background:rgba(250,247,242,.94);border-bottom:1px solid rgba(229,221,216,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:100%;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:12px;min-width:245px}
.brand-mark{width:39px;height:39px;border-radius:13px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:-2px}
.brand-copy strong{display:block;color:var(--plum-deep);font-size:17px;line-height:1.25}
.brand-copy span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:5px;flex:1}
.main-nav a{padding:8px 14px;border-radius:9px;color:#5f5363;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:var(--plum);background:var(--plum-soft)}
.header-action{background:var(--coral);color:#fff;padding:11px 18px;border-radius:10px;font-weight:700;white-space:nowrap}
.header-action:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:var(--plum);font-size:25px;padding:6px}
.hero{padding:82px 0 74px;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:#f0dfdc;right:-180px;top:-180px;opacity:.7}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:78px;align-items:center;position:relative}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-deep);font-weight:800;font-size:13px;letter-spacing:1px}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--coral)}
.hero h1{font-size:clamp(42px,5vw,70px);line-height:1.12;letter-spacing:-3px;color:var(--plum-deep);margin:18px 0 22px}
.hero h1 em{font-style:normal;color:var(--plum)}
.hero-lead{font-size:18px;color:var(--muted);max-width:600px;line-height:1.9}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:750;border:1px solid transparent}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(240,120,84,.2)}
.btn-primary:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px);box-shadow:0 11px 22px rgba(240,120,84,.27)}
.btn-secondary{border-color:var(--plum);color:var(--plum);background:transparent}
.btn-secondary:hover{background:var(--plum-soft);color:var(--plum);transform:translateY(-2px)}
.hero-note{display:flex;gap:18px;margin-top:28px;color:var(--muted);font-size:13px;flex-wrap:wrap}
.hero-note span{display:flex;align-items:center;gap:6px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.app-stage{background:var(--plum-deep);min-height:400px;border-radius:28px;padding:30px;display:flex;align-items:center;gap:24px;position:relative;box-shadow:var(--shadow)}
.app-stage:after{content:"官方移动端";position:absolute;right:25px;top:25px;color:#d7c5db;border:1px solid #67536c;border-radius:30px;padding:4px 10px;font-size:11px}
.phone{width:190px;height:337px;background:#17121c;border:7px solid #4b3b50;border-radius:29px;padding:10px;box-shadow:14px 15px 0 rgba(0,0,0,.12);flex:none}
.phone-screen{height:100%;background:var(--paper);border-radius:19px;overflow:hidden}
.phone-top{background:var(--plum);height:66px;padding:18px 13px;color:#fff;font-size:12px}
.phone-top b{display:block;font-size:15px}
.phone-list{padding:13px}
.phone-list div{border-bottom:1px solid #e6ddd9;padding:12px 0}
.phone-list i{display:block;width:42px;height:5px;border-radius:5px;background:#e8d9e8;margin-bottom:7px}
.phone-list span{display:block;font-size:11px;line-height:1.5}
.stage-copy{color:#fff;align-self:flex-end;padding-bottom:6px}
.stage-copy strong{font-size:21px;display:block;margin-bottom:6px}
.stage-copy p{color:#cbbdcf;font-size:13px}
.qr-box{width:78px;height:78px;background:repeating-linear-gradient(45deg,#fff 0 3px,#ddd 3px 6px);border:6px solid #fff;border-radius:7px;margin-top:19px}
.info-strip{background:var(--cream);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.info-item{padding:24px 25px;border-right:1px solid var(--line)}
.info-item:last-child{border:0}
.info-item b{display:block;color:var(--plum);font-size:17px;margin-bottom:3px}
.info-item span{color:var(--muted);font-size:13px}
.section{padding:94px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
.section-head h2{font-size:34px;line-height:1.25;color:var(--plum-deep);margin-top:9px}
.section-head p{color:var(--muted);max-width:480px}
.more-link{color:var(--plum);font-weight:750;border-bottom:1px solid var(--plum);padding-bottom:3px;white-space:nowrap}
.news-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:22px}
.feature-news{background:var(--plum);color:#fff;border-radius:18px;padding:32px;min-height:310px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.feature-news:after{content:"资讯";position:absolute;right:-10px;bottom:-38px;font-size:130px;font-weight:900;color:rgba(255,255,255,.07)}
.feature-news .tag{background:#f4b09d;color:#54223b}
.tag{display:inline-flex;align-items:center;border-radius:20px;padding:4px 10px;background:var(--plum-soft);color:var(--plum);font-size:12px;font-weight:700;width:max-content}
.feature-news h3{font-size:25px;line-height:1.4;max-width:430px;margin:20px 0 9px;position:relative;z-index:1}
.feature-news p{color:#ddcfe0;max-width:440px;position:relative;z-index:1}
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:92px 1fr auto;gap:18px;align-items:center;padding:20px 4px;border-bottom:1px solid var(--line)}
.news-row time{font-size:12px;color:var(--muted)}
.news-row h3{font-size:16px;line-height:1.45;margin-bottom:3px}
.news-row p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-row .arrow{font-size:21px;color:var(--coral)}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.timeline-item{padding:27px 25px 10px 0;position:relative;border-right:1px solid var(--line);margin-right:25px}
.timeline-item:last-child{border:0;margin:0}
.timeline-item:before{content:"";width:11px;height:11px;border-radius:50%;background:var(--coral);position:absolute;top:-6px;left:0;box-shadow:0 0 0 5px var(--paper)}
.timeline-item time{color:var(--coral-deep);font-size:13px;font-weight:750}
.timeline-item h3{font-size:18px;margin:9px 0 6px;color:var(--plum)}
.timeline-item p{color:var(--muted);font-size:14px}
.notice-panel{background:var(--plum-deep);border-radius:18px;padding:31px;color:#fff;display:flex;align-items:center;gap:22px;border-left:6px solid var(--coral)}
.notice-badge{color:#ffc0aa;font-size:12px;font-weight:800;letter-spacing:1px}
.notice-panel h3{font-size:21px;margin:4px 0}
.notice-panel p{color:#cbbdcf;font-size:14px}
.notice-date{margin-left:auto;color:#cbbdcf;font-size:13px;white-space:nowrap}
.download-section{background:#eaddeb}
.download-box{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;background:var(--white);border-radius:26px;padding:45px;box-shadow:var(--shadow)}
.download-box h2{font-size:35px;color:var(--plum-deep);line-height:1.3;margin:9px 0 13px}
.download-box p{color:var(--muted);max-width:500px}
.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.meta-chip{background:var(--cream);border:1px solid var(--line);padding:8px 12px;border-radius:9px;font-size:13px;color:var(--plum)}
.download-visual{background:var(--plum-deep);border-radius:22px;min-height:245px;padding:27px;display:flex;align-items:center;justify-content:center;gap:28px;color:#fff}
.mini-phone{width:105px;height:185px;border:5px solid #715879;border-radius:18px;background:var(--paper);padding:6px}
.mini-phone div{height:100%;border-radius:12px;background:linear-gradient(#55245f 31%,#faf7f2 31%)}
.qr-area{text-align:center}
.qr-area .qr-box{margin:0 auto 10px;width:92px;height:92px}
.qr-area span{font-size:12px;color:#e5d7e6}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{padding:25px 20px;border-top:3px solid var(--plum);background:#fff;border-radius:12px}
.step-num{font-size:30px;color:var(--coral);font-weight:800;line-height:1}
.step h3{color:var(--plum);font-size:18px;margin:15px 0 5px}
.step p{color:var(--muted);font-size:13px}
.channels{display:grid;grid-template-columns:1.25fr .8fr .8fr;grid-template-rows:145px 145px;gap:15px}
.channel{border-radius:15px;padding:24px;display:flex;flex-direction:column;justify-content:end;min-width:0}
.channel h3{font-size:20px;color:var(--plum-deep)}
.channel p{font-size:13px;color:var(--muted)}
.channel-main{grid-row:span 2;background:var(--plum-soft);position:relative;overflow:hidden}
.channel-main:after{content:"✦";position:absolute;right:27px;top:22px;color:var(--coral);font-size:58px}
.channel-small{background:#fff;border:1px solid var(--line)}
.channel-small h3{font-size:17px}
.benefit-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.benefit-wrap h2{font-size:34px;color:var(--plum-deep);line-height:1.3}
.benefit-wrap>div>p{color:var(--muted);margin-top:12px}
.benefits{border-top:1px solid var(--line)}
.benefit{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);align-items:center}
.benefit strong{color:var(--plum);min-width:110px}
.benefit span{color:var(--muted);font-size:14px}
.security{background:var(--cream)}
.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.security-card{background:#fff;border-radius:16px;padding:27px}
.security-card h3{color:var(--plum);font-size:20px;margin-bottom:17px}
.check-list{list-style:none}
.check-list li{padding:10px 0 10px 27px;border-bottom:1px solid var(--line);position:relative;color:#5e5560}
.check-list li:before{content:"✓";position:absolute;left:0;top:9px;color:var(--mint);font-weight:800}
.version-track{display:flex;border-left:2px solid var(--plum);margin-left:14px}
.version{padding:0 0 30px 28px;position:relative;flex:1}
.version:before{content:"";width:13px;height:13px;background:var(--coral);border-radius:50%;position:absolute;left:-8px;top:3px;border:3px solid var(--paper)}
.version b{color:var(--plum);font-size:19px}
.version time{display:block;color:var(--coral-deep);font-size:12px;margin:3px 0}
.version p{color:var(--muted);font-size:13px}
.guides{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--line)}
.guide{display:flex;justify-content:space-between;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
.guide h3{font-size:16px;color:var(--plum)}
.guide p{font-size:12px;color:var(--muted)}
.guide time{font-size:12px;color:var(--muted);white-space:nowrap}
.faq-list{max-width:850px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;background:transparent;text-align:left;padding:20px 40px 20px 0;color:var(--plum-deep);font-weight:750;font-size:16px;position:relative}
.faq-question:after{content:"+";position:absolute;right:5px;font-size:23px;color:var(--coral);top:15px}
.faq-answer{display:none;color:var(--muted);padding:0 35px 18px 0;font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question:after{content:"−"}
.contact-band{background:var(--plum-deep);color:#fff;border-radius:20px;padding:38px 43px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.contact-band h2{font-size:28px;margin:8px 0}
.contact-band p{color:#cdbed1}
.site-footer{background:#1d1724;color:#d5c9d7;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding-bottom:42px;border-bottom:1px solid #403445}
.footer-brand strong{font-size:20px;color:#fff;display:block;margin-bottom:10px}
.footer-brand p{font-size:13px;color:#aa9cad;max-width:280px}
.site-footer h3{font-size:14px;color:#fff;margin-bottom:15px}
.footer-links{list-style:none;display:grid;gap:8px}
.footer-links a{font-size:13px;color:#aa9cad}
.footer-links a:hover{color:#f6a287}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#948499;font-size:12px;flex-wrap:wrap}
.compliance{margin-top:17px;color:#9f91a5;font-size:12px;line-height:1.8}
@media(max-width:1100px){
  .header-inner{gap:16px}.brand{min-width:215px}.main-nav a{padding:8px 9px}
  .hero-grid{gap:38px}.container{width:min(var(--container),calc(100% - 36px))}
}
@media(max-width:900px){
  .main-nav{display:none}.header-action{margin-left:auto}.menu-toggle{display:block}
  .site-header.menu-open{height:auto}.site-header.menu-open .main-nav{display:flex;position:absolute;left:0;right:0;top:78px;background:var(--paper);padding:15px 24px 22px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
  .site-header.menu-open .main-nav a{padding:13px 12px}
  .hero-grid,.download-box,.benefit-wrap{grid-template-columns:1fr}.hero{padding:65px 0}.app-stage{max-width:620px}
  .news-layout{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:640px){
  .container{width:min(100% - 30px,var(--container))}
  .brand-copy strong{font-size:14px}.brand-copy span{font-size:9px}.brand{min-width:0}
  .header-action{font-size:13px;padding:10px 12px}.hero h1{font-size:42px;letter-spacing:-2px}.hero-lead{font-size:16px}
  .app-stage{padding:22px;gap:15px}.phone{width:145px;height:260px}.stage-copy strong{font-size:17px}.stage-copy p{font-size:12px}
  .info-grid{grid-template-columns:1fr 1fr}.info-item{padding:17px 13px}.info-item:nth-child(2){border-right:0}.info-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:29px}.section-head p{margin-top:10px}.more-link{display:inline-block;margin-top:16px}
  .news-row{grid-template-columns:67px 1fr}.news-row .arrow{display:none}.news-row p{white-space:normal}
  .timeline{display:block}.timeline-item{border-right:0;border-bottom:1px solid var(--line);margin:0;padding-left:20px;padding-bottom:22px}
  .notice-panel{display:block;padding:25px}.notice-date{display:block;margin:12px 0 0}
  .download-box{padding:25px;gap:25px}.download-box h2{font-size:29px}.download-visual{padding:20px;gap:16px}
  .steps,.security-grid,.guides{grid-template-columns:1fr}.channels{display:flex;flex-direction:column}.channel{min-height:125px}
  .benefit-wrap{gap:28px}.benefit{display:block}.benefit strong{display:block;margin-bottom:4px}
  .version-track{display:block}.version{padding-bottom:24px}.contact-band{display:block;padding:29px 24px}.contact-band .btn{margin-top:20px;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
}
@media(max-width:420px){
  .header-action{display:none}.hero h1{font-size:36px}.hero-note{display:block}.hero-note span{margin-bottom:6px}
  .app-stage{min-height:330px}.phone{width:125px;height:225px}.qr-box{width:62px;height:62px}.stage-copy{align-self:center}
  .footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
}

/* roulang page: category1 */
:root{
      --plum:#55245f;--plum-deep:#241b2b;--plum-soft:#eee4f0;
      --coral:#f07854;--coral-deep:#d95f40;--mint:#5e9d8d;
      --paper:#faf7f2;--cream:#f3ede6;--ink:#2e2632;--muted:#796f7b;
      --line:#e5ddd8;--white:#fffdfb;--radius:18px;
      --shadow:0 16px 38px rgba(54,31,48,.08);--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:all .25s ease}
    a:hover{color:var(--coral)}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(250,247,242,.96);border-bottom:1px solid rgba(229,221,216,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px}
    .brand-mark{width:39px;height:39px;border-radius:13px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:-2px}
    .brand-copy strong{display:block;color:var(--plum-deep);font-size:17px;line-height:1.25}
    .brand-copy span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:8px 14px;border-radius:9px;color:#5f5363;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--plum);background:var(--plum-soft)}
    .header-action{background:var(--coral);color:#fff;padding:11px 18px;border-radius:10px;font-weight:700;white-space:nowrap}
    .header-action:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--plum);font-size:25px;padding:6px}
    .page-top{padding:56px 0 44px;border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb span{color:#b0a5ae}
    .page-top h1{font-size:clamp(36px,5vw,62px);line-height:1.15;letter-spacing:-2px;color:var(--plum-deep);margin:0 0 18px}
    .page-top h1 em{font-style:normal;color:var(--plum)}
    .page-top p{max-width:700px;color:var(--muted);font-size:17px;margin:0}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-deep);font-weight:800;font-size:13px;letter-spacing:1px}
    .section-kicker:before{content:"";width:22px;height:2px;background:var(--coral)}
    .section-head h2{font-size:32px;line-height:1.3;color:var(--plum-deep);margin:9px 0 0}
    .section-head p{max-width:450px;color:var(--muted);margin:0}
    .update-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white);border-radius:16px;box-shadow:var(--shadow)}
    .update-cell{padding:24px;border-right:1px solid var(--line)}
    .update-cell:last-child{border-right:0}
    .update-cell b{display:block;color:var(--plum);font-size:18px;margin-bottom:4px}
    .update-cell span{color:var(--muted);font-size:13px}
    .news-index{display:grid;grid-template-columns:1.05fr .95fr;gap:30px}
    .lead-news{background:var(--plum);color:#fff;border-radius:18px;padding:34px;min-height:330px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .lead-news:after{content:"资讯";position:absolute;right:-12px;bottom:-40px;color:rgba(255,255,255,.07);font-size:140px;font-weight:900}
    .tag{display:inline-flex;width:max-content;padding:4px 11px;border-radius:20px;background:var(--plum-soft);color:var(--plum);font-size:12px;font-weight:700}
    .lead-news .tag{background:#f4b09d;color:#54223b}
    .lead-news h3{font-size:27px;line-height:1.4;max-width:470px;margin:20px 0 10px;position:relative;z-index:1}
    .lead-news p{color:#ddcfe0;max-width:470px;position:relative;z-index:1}
    .lead-meta{display:flex;gap:18px;color:#d9c8dc;font-size:13px;position:relative;z-index:1}
    .list-panel{border-top:1px solid var(--line)}
    .news-row{display:grid;grid-template-columns:94px 1fr 25px;gap:17px;align-items:center;padding:20px 4px;border-bottom:1px solid var(--line)}
    .news-row time{font-size:12px;color:var(--muted)}
    .news-row h3{font-size:16px;line-height:1.45;margin:0 0 3px}
    .news-row p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .arrow{font-size:21px;color:var(--coral)}
    .featured{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
    .feature-card{background:var(--cream);border-radius:16px;padding:28px;min-height:205px;border:1px solid var(--line)}
    .feature-card.primary{background:#eaddea;border-color:#ddc8e1}
    .feature-card h3{font-size:22px;color:var(--plum-deep);margin:18px 0 8px}
    .feature-card p{color:var(--muted);margin:0}
    .notice-board{background:var(--plum-deep);color:#fff;border-radius:20px;padding:32px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
    .notice-board small{color:#f4b09d;font-weight:700}
    .notice-board h2{font-size:25px;margin:12px 0 8px}
    .notice-board p{color:#d8cbdc;margin:0}
    .notice-mark{border-left:4px solid var(--coral);padding-left:18px}
    .notice-link{border:1px solid #806b83;border-radius:10px;padding:11px 17px;color:#fff;white-space:nowrap}
    .notice-link:hover{background:var(--coral);color:#fff;border-color:var(--coral)}
    .version-track{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--plum)}
    .version-item{padding:25px 24px 10px;border-right:1px solid var(--line);position:relative}
    .version-item:last-child{border:0}
    .version-item:before{content:"";position:absolute;width:12px;height:12px;background:var(--coral);border:4px solid var(--paper);border-radius:50%;top:-8px;left:22px}
    .version-item b{color:var(--plum);font-size:19px}
    .version-item time{display:block;color:var(--muted);font-size:13px;margin:5px 0 12px}
    .version-item p{color:var(--muted);font-size:14px;margin:0}
    .topic-band{display:flex;flex-wrap:wrap;gap:12px;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .topic-band a{border:1px solid var(--line);border-radius:30px;padding:9px 17px;background:var(--white);color:var(--plum)}
    .topic-band a:hover{border-color:var(--coral);background:#fff0eb;color:var(--coral-deep)}
    .reading-note{display:grid;grid-template-columns:1fr 1fr;gap:24px;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:28px}
    .reading-note h3{margin:0 0 8px;color:var(--plum)}
    .reading-note p{color:var(--muted);margin:0}
    .cta-band{background:#f2dfda;border-radius:22px;padding:35px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-band h2{color:var(--plum-deep);font-size:27px;margin:0 0 7px}
    .cta-band p{color:var(--muted);margin:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:750;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(240,120,84,.2)}
    .btn-primary:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .site-footer{background:var(--plum-deep);color:#fff;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:38px}
    .footer-brand strong{font-size:18px}
    .footer-brand p{color:#cbbdcf;max-width:310px;margin:15px 0}
    .compliance{font-size:12px;line-height:1.7;color:#a99aad;max-width:360px}
    .site-footer h3{font-size:14px;margin:0 0 16px;color:#f4b09d}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0;color:#cbbdcf;font-size:13px}
    .footer-links a:hover{color:#f4b09d}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #49384e;margin-top:42px;padding-top:20px;color:#95869a;font-size:12px}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(240,120,84,.45);outline-offset:3px}
    @media(max-width:992px){
      .header-inner{gap:15px}.brand{min-width:210px}.main-nav a{padding:8px 8px}
      .news-index,.featured{grid-template-columns:1fr}.update-strip{grid-template-columns:repeat(2,1fr)}
      .update-cell:nth-child(2){border-right:0}.update-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media(max-width:768px){
      .site-header{height:70px}.brand{min-width:0;flex:1}.brand-copy strong{font-size:14px}.brand-copy span{display:none}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--paper);padding:18px 24px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
      .main-nav.open{display:flex}.main-nav a{padding:13px 14px}.menu-toggle{display:block}
      .header-action{padding:9px 12px;font-size:13px}.container{width:min(100% - 32px,var(--container))}
      .page-top{padding:42px 0 35px}.section{padding:56px 0}.section-head{display:block}
      .section-head p{margin-top:12px}.notice-board,.cta-band{display:block}.notice-link{display:inline-flex;margin-top:24px}
      .version-track{grid-template-columns:1fr}.version-item{border-right:0;border-bottom:1px solid var(--line);padding-left:25px}
      .reading-note{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:last-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .page-top h1{font-size:38px;letter-spacing:-1px}.update-strip{grid-template-columns:1fr}
      .update-cell{border-right:0;border-bottom:1px solid var(--line)!important}.update-cell:last-child{border-bottom:0!important}
      .lead-news{padding:25px;min-height:290px}.lead-news h3{font-size:23px}
      .news-row{grid-template-columns:70px 1fr 18px;gap:9px}.news-row p{display:none}
      .cta-band{padding:27px 23px}.cta-band .btn{width:100%;margin-top:20px}
      .footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}
    }

/* roulang page: article */
:root{
      --plum:#55245f;
      --plum-deep:#241b2b;
      --plum-soft:#eee4f0;
      --coral:#f07854;
      --coral-deep:#d95f40;
      --mint:#5e9d8d;
      --paper:#faf7f2;
      --cream:#f3ede6;
      --ink:#2e2632;
      --muted:#796f7b;
      --line:#e5ddd8;
      --white:#fffdfb;
      --radius:18px;
      --shadow:0 16px 38px rgba(54,31,48,.08);
      --container:1200px;
    }
    *,*:before,*:after{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:15px}
    a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,box-shadow .25s ease}
    a:hover{color:var(--coral)}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(250,247,242,.95);border-bottom:1px solid rgba(229,221,216,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px}
    .brand-mark{width:39px;height:39px;border-radius:13px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:-2px}
    .brand-copy strong{display:block;color:var(--plum-deep);font-size:17px;line-height:1.25}
    .brand-copy span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:8px 14px;border-radius:9px;color:#5f5363;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--plum);background:var(--plum-soft)}
    .header-action{background:var(--coral);color:#fff;padding:11px 18px;border-radius:10px;font-weight:700;white-space:nowrap}
    .header-action:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--plum);font-size:25px;padding:6px}
    .page-top{padding:55px 0 42px;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:27px;flex-wrap:wrap}
    .breadcrumb a:hover{color:var(--coral)}
    .breadcrumb .current{color:var(--plum);font-weight:700;max-width:650px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .article-kicker,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-deep);font-weight:800;font-size:13px;letter-spacing:1px}
    .article-kicker:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--coral)}
    .page-top h1{max-width:900px;font-size:clamp(34px,4.5vw,58px);line-height:1.24;letter-spacing:-2px;color:var(--plum-deep);margin:15px 0 21px}
    .article-summary{max-width:820px;color:var(--muted);font-size:17px;line-height:1.9;margin:0}
    .article-meta{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:25px;color:var(--muted);font-size:13px}
    .meta-item{display:inline-flex;align-items:center;gap:7px}
    .meta-dot{width:7px;height:7px;border-radius:50%;background:var(--coral)}
    .tag{display:inline-flex;align-items:center;border-radius:20px;padding:4px 11px;background:var(--plum-soft);color:var(--plum);font-size:12px;font-weight:700}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 285px;gap:72px;align-items:start}
    .article-section{padding:76px 0}
    .article-body{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:clamp(25px,4vw,54px);box-shadow:0 9px 28px rgba(54,31,48,.04)}
    .article-body>*:first-child{margin-top:0}
    .article-body>*:last-child{margin-bottom:0}
    .article-body h2{font-size:29px;color:var(--plum-deep);line-height:1.4;margin:38px 0 16px}
    .article-body h3{font-size:21px;color:var(--plum);line-height:1.5;margin:29px 0 12px}
    .article-body p{font-size:16px;line-height:2;margin:0 0 20px;color:#463d49}
    .article-body ul,.article-body ol{padding-left:25px;margin:18px 0 24px;color:#463d49}
    .article-body li{padding:4px 0;line-height:1.9}
    .article-body blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--coral);background:#fff1ed;color:#654955;border-radius:0 12px 12px 0}
    .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 13px;text-align:left}
    .article-body th{background:var(--plum-soft);color:var(--plum)}
    .article-body img{width:100%;border-radius:12px;margin:25px 0}
    .article-side{position:sticky;top:105px}
    .side-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:23px;margin-bottom:18px}
    .side-card h2{font-size:17px;color:var(--plum-deep);margin:0 0 15px}
    .side-card p{font-size:13px;color:var(--muted);margin:0 0 14px;line-height:1.8}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{border-top:1px solid var(--line);padding:11px 0;font-size:13px}
    .side-list li:first-child{border-top:0;padding-top:0}
    .side-list a{color:#65596a}
    .side-list a:hover{color:var(--coral)}
    .empty-state{padding:58px 25px;text-align:center;border:1px dashed #cdbfcf;border-radius:14px;background:#fcf9fc;color:var(--muted)}
    .empty-icon{width:44px;height:44px;border:2px solid #c7b3c9;border-radius:50%;margin:0 auto 16px;position:relative}
    .empty-icon:after{content:"";position:absolute;left:9px;right:9px;top:20px;height:2px;background:#c7b3c9}
    .empty-state strong{display:block;color:var(--plum);font-size:18px;margin-bottom:7px}
    .empty-state p{margin:0 0 20px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:750;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(240,120,84,.2)}
    .btn-primary:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px);box-shadow:0 11px 22px rgba(240,120,84,.27)}
    .btn-secondary{border-color:var(--plum);color:var(--plum);background:transparent}
    .btn-secondary:hover{background:var(--plum-soft);color:var(--plum);transform:translateY(-2px)}
    .article-action{padding:0 0 76px}
    .action-panel{background:var(--plum);color:#fff;border-radius:20px;padding:30px 34px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .action-panel h2{font-size:24px;margin:0 0 7px}
    .action-panel p{color:#d8c9db;margin:0;font-size:14px}
    .action-panel .btn-secondary{color:#fff;border-color:#d9bfe0}
    .action-panel .btn-secondary:hover{color:var(--plum);background:#fff}
    .related-section{padding:78px 0;background:var(--cream);border-top:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:27px}
    .section-head h2{font-size:31px;line-height:1.3;color:var(--plum-deep);margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:470px;margin:0}
    .related-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
    .related-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:23px;min-height:190px;display:flex;flex-direction:column;justify-content:space-between}
    .related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .related-card h3{font-size:18px;line-height:1.5;color:var(--plum-deep);margin:14px 0 7px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .related-foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px;color:var(--muted);font-size:12px}
    .arrow{font-size:21px;color:var(--coral)}
    .support-strip{padding:64px 0}
    .support-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .support-card{border:1px solid var(--line);border-radius:16px;padding:27px;background:var(--white)}
    .support-card.accent{background:#fff0eb;border-color:#f6d2c8}
    .support-card h2{font-size:20px;color:var(--plum-deep);margin:0 0 9px}
    .support-card p{color:var(--muted);font-size:14px;line-height:1.85;margin:0 0 17px}
    .support-link{color:var(--plum);font-weight:750}
    .compliance-note{padding:25px 0 75px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}
    .site-footer{background:var(--plum-deep);color:#e7dce8;padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.65fr 1fr 1fr 1fr;gap:42px}
    .footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:13px}
    .footer-brand p{color:#cbbdce;font-size:13px;max-width:330px;margin:0 0 18px}
    .compliance{border-left:2px solid var(--coral);padding-left:13px;color:#cbbdce;font-size:12px;line-height:1.8;max-width:340px}
    .site-footer h3{font-size:14px;color:#fff;margin:0 0 14px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:7px 0}
    .footer-links a{color:#cbbdce;font-size:13px}
    .footer-links a:hover{color:#ffb09b}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#a99baa;font-size:12px;flex-wrap:wrap}
    :focus-visible{outline:3px solid rgba(240,120,84,.55);outline-offset:3px}
    @media (max-width:1200px){
      .header-inner{gap:18px}.brand{min-width:220px}.main-nav a{padding:8px 10px}
      .article-layout{gap:42px}
    }
    @media (max-width:992px){
      .main-nav{gap:0}.main-nav a{font-size:13px;padding:8px 8px}
      .article-layout{grid-template-columns:1fr}.article-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}.side-card{margin:0}
      .related-grid{grid-template-columns:1fr 1fr}.related-card:first-child{grid-column:span 2}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:70px}.header-inner{gap:10px}.brand{min-width:0;flex:1}.brand-copy strong{font-size:14px}.brand-copy span{font-size:9px}.brand-mark{width:35px;height:35px;font-size:16px}
      .main-nav{display:none}.header-action{padding:9px 12px;font-size:13px}.menu-toggle{display:block}
      .page-top{padding:40px 0 34px}.page-top h1{font-size:36px;letter-spacing:-1px}.article-summary{font-size:15px}
      .article-section{padding:45px 0}.article-body{padding:25px 20px}.article-body p{font-size:15px}
      .article-side{grid-template-columns:1fr}.article-action{padding-bottom:45px}.action-panel{align-items:flex-start;flex-direction:column;padding:27px}
      .related-section{padding:48px 0}.section-head{display:block}.section-head p{margin-top:10px}.related-grid{grid-template-columns:1fr}.related-card:first-child{grid-column:auto}
      .support-strip{padding:45px 0}.support-grid{grid-template-columns:1fr}.compliance-note{padding-bottom:45px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:span 2}
    }
    @media (max-width:520px){
      .header-action{font-size:12px;padding:8px 10px}.page-top h1{font-size:30px}.article-meta{gap:11px;display:block}.meta-item{margin:4px 16px 4px 0}
      .article-body h2{font-size:24px}.article-body h3{font-size:19px}.article-body table{font-size:12px;display:block;overflow-x:auto;white-space:nowrap}
      .action-panel .btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category2 */
:root{
      --plum:#55245f;
      --plum-deep:#241b2b;
      --plum-soft:#eee4f0;
      --coral:#f07854;
      --coral-deep:#d95f40;
      --mint:#5e9d8d;
      --paper:#faf7f2;
      --cream:#f3ede6;
      --ink:#2e2632;
      --muted:#796f7b;
      --line:#e5ddd8;
      --white:#fffdfb;
      --radius:18px;
      --shadow:0 16px 38px rgba(54,31,48,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,box-shadow .25s ease}
    a:hover{color:var(--coral)}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(250,247,242,.96);border-bottom:1px solid rgba(229,221,216,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px}
    .brand-mark{width:39px;height:39px;border-radius:13px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:-2px}
    .brand-copy strong{display:block;color:var(--plum-deep);font-size:17px;line-height:1.25}
    .brand-copy span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:8px 14px;border-radius:9px;color:#5f5363;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--plum);background:var(--plum-soft)}
    .header-action{background:var(--coral);color:#fff;padding:11px 18px;border-radius:10px;font-weight:700;white-space:nowrap}
    .header-action:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--plum);font-size:25px;padding:6px}
    .breadcrumb{padding:26px 0 0;color:var(--muted);font-size:13px}
    .breadcrumb a{color:var(--plum)}
    .page-intro{padding:48px 0 70px}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-deep);font-weight:800;font-size:13px;letter-spacing:1px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--coral)}
    .page-intro h1{font-size:clamp(40px,5vw,68px);line-height:1.15;letter-spacing:-3px;color:var(--plum-deep);margin:17px 0 20px}
    .page-intro h1 em{font-style:normal;color:var(--plum)}
    .intro-text{font-size:18px;color:var(--muted);max-width:690px}
    .intro-note{border-left:3px solid var(--coral);padding:18px 0 18px 22px;color:var(--muted);background:linear-gradient(90deg,#f3e8e4,transparent);border-radius:0 12px 12px 0}
    .section{padding:82px 0}
    .section-alt{background:var(--cream)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;color:var(--plum-deep);margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .status-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
    .status-item{padding:25px;border-right:1px solid var(--line)}
    .status-item:last-child{border-right:0}
    .status-item b{display:block;color:var(--plum);font-size:17px;margin-bottom:3px}
    .status-item span{font-size:13px;color:var(--muted)}
    .download-panel{background:var(--plum-deep);border-radius:26px;padding:42px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;overflow:hidden;position:relative}
    .download-panel:after{content:"APP";position:absolute;right:-20px;bottom:-52px;color:rgba(255,255,255,.05);font-size:190px;font-weight:900;line-height:1}
    .download-panel h2{font-size:34px;line-height:1.3;margin:13px 0 13px;position:relative;z-index:1}
    .download-panel p{color:#d9cbdc;max-width:490px;position:relative;z-index:1}
    .platforms{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0;position:relative;z-index:1}
    .platform{border:1px solid #705d74;color:#fff;border-radius:11px;padding:9px 15px;font-size:13px}
    .platform.available{border-color:#e9957d;background:rgba(240,120,84,.18)}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:750;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(240,120,84,.2)}
    .btn-primary:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--plum);border-color:#fff}
    .btn-light:hover{background:#f9ded6;color:var(--plum);transform:translateY(-2px)}
    .qr-card{background:#fff;border-radius:20px;padding:24px;color:var(--plum-deep);display:flex;align-items:center;gap:20px;max-width:410px;position:relative;z-index:1}
    .qr-box{width:122px;height:122px;border:8px solid #fff;background:repeating-linear-gradient(45deg,var(--plum) 0 4px,#fff 4px 8px);outline:1px solid var(--line);flex:none}
    .qr-card strong{display:block;font-size:19px;margin-bottom:6px}
    .qr-card p{color:var(--muted);font-size:13px;margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .step{padding:26px 22px;border:1px solid var(--line);background:var(--white);border-radius:16px;min-height:190px}
    .step-num{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--plum-soft);color:var(--plum);font-weight:800;margin-bottom:22px}
    .step h3{font-size:18px;color:var(--plum);margin:0 0 8px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .version-track{border-left:2px solid #d9c9d9;padding-left:30px;display:grid;gap:24px}
    .version-entry{position:relative;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px 25px;display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:center}
    .version-entry:before{content:"";position:absolute;left:-38px;width:13px;height:13px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px var(--cream)}
    .version-code{font-size:21px;font-weight:800;color:var(--plum)}
    .version-entry time{font-size:12px;color:var(--muted);display:block;margin-top:3px}
    .version-entry p{margin:0;color:var(--muted)}
    .tag{display:inline-flex;align-items:center;border-radius:20px;padding:4px 10px;background:var(--plum-soft);color:var(--plum);font-size:12px;font-weight:700;width:max-content}
    .guide-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
    .guide-title h2{font-size:35px;color:var(--plum-deep);line-height:1.3;margin:12px 0}
    .guide-title p{color:var(--muted)}
    .guide-list{border-top:1px solid var(--line)}
    .guide-row{display:grid;grid-template-columns:90px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .guide-row time{font-size:12px;color:var(--muted)}
    .guide-row h3{font-size:17px;margin:0 0 4px;color:var(--plum)}
    .guide-row p{font-size:13px;color:var(--muted);margin:0}
    .guide-arrow{font-size:20px;color:var(--coral)}
    .security-box{display:grid;grid-template-columns:1fr 1fr;gap:25px}
    .security-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:28px}
    .security-card h3{color:var(--plum);margin:0 0 12px;font-size:20px}
    .security-card p{color:var(--muted);margin:0}
    .security-list{list-style:none;padding:0;margin:16px 0 0}
    .security-list li{padding:9px 0 9px 25px;border-bottom:1px dashed var(--line);position:relative;color:var(--muted)}
    .security-list li:before{content:"✓";position:absolute;left:0;color:var(--mint);font-weight:800}
    .faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:transparent;padding:21px 4px;text-align:left;display:flex;justify-content:space-between;align-items:center;color:var(--plum-deep);font-weight:750;font-size:17px}
    .faq-question span:last-child{font-size:24px;color:var(--coral);transition:transform .25s}
    .faq-answer{max-height:0;overflow:hidden;color:var(--muted);transition:max-height .3s ease;padding:0 35px 0 4px}
    .faq-item.open .faq-answer{max-height:130px;padding-bottom:20px}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .support{background:#eadce9;border-radius:22px;padding:36px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .support h2{color:var(--plum-deep);font-size:29px;margin:0 0 8px}
    .support p{color:var(--muted);margin:0}
    .site-footer{background:var(--plum-deep);color:#d8cadb;padding:62px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:42px}
    .footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:14px}
    .footer-brand p{color:#c2b3c7;max-width:290px}
    .compliance{border-left:2px solid var(--coral);padding-left:14px;color:#bcaec0;font-size:12px;line-height:1.7;margin-top:22px}
    .site-footer h3{font-size:14px;color:#fff;margin:0 0 16px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0}
    .footer-links a{color:#bcaec0;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid #403348;margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#a99aac;font-size:12px;flex-wrap:wrap}
    :focus-visible{outline:3px solid rgba(240,120,84,.45);outline-offset:3px}
    @media(max-width:992px){
      .header-inner{gap:15px}.brand{min-width:205px}.main-nav a{padding:8px 9px}
      .intro-grid,.download-panel,.guide-layout{grid-template-columns:1fr;gap:30px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .version-entry{grid-template-columns:125px 1fr}
      .version-entry .tag{grid-column:2}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}.brand-copy strong{font-size:14px}.brand-copy span{font-size:9px}.brand-mark{width:35px;height:35px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:18px 16px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}.main-nav a{padding:13px 15px}
      .menu-toggle{display:block}.header-action{margin-left:auto;padding:9px 12px;font-size:13px}
      .page-intro{padding:38px 0 52px}.page-intro h1{letter-spacing:-2px}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .status-strip{grid-template-columns:repeat(2,1fr)}.status-item:nth-child(2){border-right:0}.status-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .download-panel{padding:28px 22px}.download-panel h2{font-size:29px}.qr-card{max-width:none}
      .security-box{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .support{display:block;padding:28px 24px}.support .btn{margin-top:20px}
    }
    @media(max-width:520px){
      .header-action{font-size:12px;padding:8px 10px}.brand{min-width:0;gap:8px}.brand-copy strong{max-width:145px}
      .page-intro h1{font-size:39px}.intro-text{font-size:16px}
      .status-item{padding:18px 15px}.status-item b{font-size:15px}
      .steps{grid-template-columns:1fr}.step{min-height:0}
      .qr-card{display:block}.qr-box{margin-bottom:18px}
      .download-actions .btn{width:100%}.version-entry{display:block;padding:19px}.version-entry p{margin:10px 0}
      .guide-row{grid-template-columns:1fr auto;gap:5px 12px}.guide-row time{grid-column:1/-1}.guide-row p{grid-column:1/-1}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: category3 */
:root{
      --plum:#55245f;
      --plum-deep:#241b2b;
      --plum-soft:#eee4f0;
      --coral:#f07854;
      --coral-deep:#d95f40;
      --mint:#5e9d8d;
      --paper:#faf7f2;
      --cream:#f3ede6;
      --ink:#2e2632;
      --muted:#796f7b;
      --line:#e5ddd8;
      --white:#fffdfb;
      --radius:18px;
      --shadow:0 16px 38px rgba(54,31,48,.08);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,box-shadow .25s ease}
    a:hover{color:var(--coral)}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(240,120,84,.45);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(250,247,242,.96);border-bottom:1px solid rgba(229,221,216,.86);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:12px;min-width:245px}
    .brand-mark{width:39px;height:39px;border-radius:13px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;letter-spacing:-2px}
    .brand-copy strong{display:block;color:var(--plum-deep);font-size:17px;line-height:1.25}
    .brand-copy span{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:8px 14px;border-radius:9px;color:#5f5363;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--plum);background:var(--plum-soft)}
    .header-action{background:var(--coral);color:#fff;padding:11px 18px;border-radius:10px;font-weight:700;white-space:nowrap}
    .header-action:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--plum);font-size:25px;padding:6px}
    .breadcrumb-wrap{padding:30px 0 0}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin:0}
    .breadcrumb span{color:#b0a5ae}
    .page-hero{padding:38px 0 76px}
    .hero-panel{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end;border-bottom:1px solid var(--line);padding-bottom:64px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-deep);font-weight:800;font-size:13px;letter-spacing:1px}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(40px,5vw,68px);line-height:1.12;letter-spacing:-3px;color:var(--plum-deep);margin:18px 0 22px}
    .hero-lead{max-width:680px;color:var(--muted);font-size:18px;line-height:1.9;margin-bottom:0}
    .hero-aside{background:var(--plum);color:#fff;border-radius:24px;padding:28px;min-height:210px;position:relative;overflow:hidden}
    .hero-aside:after{content:"合规";position:absolute;right:-12px;bottom:-40px;font-size:126px;font-weight:900;color:rgba(255,255,255,.08)}
    .hero-aside strong{font-size:22px;display:block;margin-bottom:12px;position:relative;z-index:1}
    .hero-aside p{color:#dfd1e2;line-height:1.8;position:relative;z-index:1}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;color:var(--plum-deep);margin:9px 0 0}
    .section-head p{color:var(--muted);max-width:500px;margin-bottom:0}
    .notice-strip{display:grid;grid-template-columns:repeat(4,1fr);background:var(--white);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
    .notice-item{padding:25px;border-right:1px solid var(--line)}
    .notice-item:last-child{border-right:0}
    .notice-item b{display:block;color:var(--plum);font-size:17px;margin-bottom:4px}
    .notice-item span{font-size:13px;color:var(--muted)}
    .security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .security-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:25px;display:flex;gap:18px;transition:transform .25s ease,box-shadow .25s ease}
    .security-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .security-number{flex:0 0 38px;height:38px;border-radius:12px;background:var(--plum-soft);color:var(--plum);display:grid;place-items:center;font-weight:800}
    .security-card h3{font-size:18px;color:var(--plum);margin:0 0 6px}
    .security-card p{font-size:14px;color:var(--muted);margin:0}
    .compliance-section{background:var(--plum-deep);color:#fff}
    .compliance-section .section-kicker{color:#f6aa96}
    .compliance-section .section-head h2{color:#fff}
    .compliance-section .section-head p{color:#cdbfcf}
    .compliance-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compliance-box{border:1px solid rgba(255,255,255,.16);border-radius:15px;padding:25px;background:rgba(255,255,255,.045)}
    .compliance-box h3{font-size:18px;color:#ffc1b0;margin-bottom:8px}
    .compliance-box p{color:#d6c9d8;margin:0;font-size:14px}
    .faq-list{max-width:900px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:transparent;color:var(--plum-deep);padding:21px 4px;font-weight:750;font-size:16px}
    .faq-question span:last-child{color:var(--coral);font-size:23px;font-weight:400;transition:transform .25s ease}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 20px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .guide-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:25px}
    .guide-main{background:var(--cream);border-radius:20px;padding:30px}
    .guide-main h3{color:var(--plum);font-size:23px;margin-bottom:18px}
    .guide-list{list-style:none;padding:0;margin:0}
    .guide-list li{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid rgba(121,111,123,.2)}
    .guide-list li:last-child{border-bottom:0}
    .guide-list strong{display:block;color:var(--ink)}
    .guide-list small{color:var(--muted)}
    .guide-list b{color:var(--coral);font-size:20px}
    .support-card{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:30px;display:flex;flex-direction:column;justify-content:space-between}
    .support-card h3{color:var(--plum-deep);font-size:24px}
    .support-card p{color:var(--muted);font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:10px;font-weight:750;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(240,120,84,.2)}
    .btn-primary:hover{color:#fff;background:var(--coral-deep);transform:translateY(-2px)}
    .risk-panel{background:#fff0e8;border-left:4px solid var(--coral);border-radius:12px;padding:25px 28px}
    .risk-panel h2{font-size:24px;color:var(--plum-deep);margin-bottom:8px}
    .risk-panel p{color:#6d5755;margin-bottom:0}
    .contact-section{padding-top:30px;padding-bottom:96px}
    .contact-banner{background:var(--plum);border-radius:22px;padding:34px 38px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .contact-banner h2{margin:0 0 7px;font-size:28px}
    .contact-banner p{margin:0;color:#dfd1e2}
    .site-footer{background:var(--plum-deep);color:#fff;padding:65px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand strong{font-size:18px}
    .footer-brand p{color:#cdbfcf;margin:14px 0 18px;font-size:14px}
    .compliance{color:#bcaebe;font-size:12px;line-height:1.8;border-left:2px solid var(--coral);padding-left:12px}
    .site-footer h3{font-size:15px;margin:0 0 15px;color:#ffc1b0}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0;color:#cdbfcf;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#a998ac;font-size:12px}
    @media(max-width:1100px){
      .header-inner{gap:16px}.brand{min-width:220px}.main-nav a{padding:8px 9px}
      .hero-panel{gap:35px}
    }
    @media(max-width:900px){
      .main-nav{display:none}.menu-toggle{display:block;margin-left:auto}
      .site-header.menu-open{height:auto}.site-header.menu-open .main-nav{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:78px;left:0;right:0;padding:18px 24px 25px;background:var(--paper);border-bottom:1px solid var(--line)}
      .hero-panel,.guide-layout{grid-template-columns:1fr}
      .notice-strip{grid-template-columns:repeat(2,1fr)}
      .notice-item:nth-child(2){border-right:0}.notice-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:640px){
      .container{width:min(100% - 32px,var(--container))}
      .site-header{height:70px}.brand{min-width:0}.brand-copy strong{font-size:14px}.brand-copy span{font-size:9px}
      .brand-mark{width:35px;height:35px}.header-action{padding:9px 11px;font-size:13px}
      .site-header.menu-open .main-nav{top:70px}
      .breadcrumb-wrap{padding-top:22px}.page-hero{padding:28px 0 48px}.hero-panel{padding-bottom:45px}
      h1{font-size:42px;letter-spacing:-2px}.hero-lead{font-size:16px}
      .section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:29px;margin-bottom:10px}
      .notice-strip,.security-grid,.compliance-grid{grid-template-columns:1fr}
      .notice-item{border-right:0!important;border-bottom:1px solid var(--line)!important}.notice-item:last-child{border-bottom:0!important}
      .contact-banner{display:block;padding:28px}.contact-banner .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }