/* roulang page: index */
:root{
  --ink:#172033;
  --muted:#68738a;
  --soft:#f5f7fb;
  --line:#e5e9f1;
  --brand:#e93d63;
  --brand-dark:#c9284d;
  --gold:#f4b844;
  --navy:#111a31;
  --white:#fff;
  --radius:22px;
  --shadow:0 18px 50px rgba(29,42,77,.09);
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none;transition:.25s ease}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,241,.8)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;white-space:nowrap}
.logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#ff7a65);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(233,61,99,.25)}
.logo-text{font-weight:800;letter-spacing:-.5px;font-size:17px}
.logo-text small{display:block;color:var(--brand);font-size:10px;letter-spacing:1.5px;line-height:1.2;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:10px;color:#59647a;font-weight:600}
.nav-links a:hover,.nav-links a.active{background:#fff0f3;color:var(--brand)}
.nav-action{padding:11px 18px!important;background:var(--navy)!important;color:#fff!important;border-radius:12px!important}
.menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
.hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;min-height:650px;display:flex;align-items:center}
.hero:before{content:"";position:absolute;width:620px;height:620px;border-radius:50%;right:-150px;top:-230px;background:radial-gradient(circle,rgba(233,61,99,.8),rgba(233,61,99,0) 68%)}
.hero:after{content:"";position:absolute;left:-160px;bottom:-330px;width:620px;height:620px;border:1px solid rgba(255,255,255,.12);border-radius:50%;box-shadow:0 0 0 60px rgba(255,255,255,.025),0 0 0 120px rgba(255,255,255,.02)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:60px;padding:88px 0 84px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#ffb8c6;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:19px}
.eyebrow:before{content:"";width:27px;height:2px;background:var(--brand)}
.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.14;letter-spacing:-2.5px;max-width:680px;margin-bottom:24px}
.hero h1 em{font-style:normal;color:#ff7590}
.hero-copy{color:#c9d0df;font-size:17px;max-width:580px;margin-bottom:34px}
.actions{display:flex;gap:13px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:12px;font-weight:700;border:1px solid transparent}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(233,61,99,.25)}
.btn-primary:hover{background:#f25373;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.25);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero-art{position:relative;min-height:390px}
.art-glow{position:absolute;inset:22px 0 0 25px;border-radius:38px;background:linear-gradient(145deg,#243252,#171e39);transform:rotate(5deg);border:1px solid rgba(255,255,255,.1)}
.dashboard{position:absolute;right:5px;top:10px;width:min(100%,450px);padding:18px;border-radius:25px;background:#fff;color:var(--ink);box-shadow:0 28px 60px rgba(0,0,0,.3);transform:rotate(-3deg)}
.dash-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.dash-brand{font-weight:800;font-size:16px}
.dash-brand span{color:var(--brand)}
.dash-badge{font-size:11px;background:#fff0f3;color:var(--brand);padding:4px 8px;border-radius:20px}
.dash-feature{height:145px;border-radius:17px;padding:20px;background:linear-gradient(120deg,#e93d63,#ff9670);color:#fff;position:relative;overflow:hidden}
.dash-feature:after{content:"NG28";position:absolute;right:-15px;bottom:-25px;font-size:80px;font-weight:900;color:rgba(255,255,255,.13)}
.dash-feature small{opacity:.82}.dash-feature strong{display:block;font-size:26px;line-height:1.25;margin-top:8px}
.dash-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:13px}
.dash-cell{padding:13px 10px;background:#f7f8fb;border-radius:13px;font-size:12px;color:var(--muted)}
.dash-cell b{display:block;font-size:18px;color:var(--ink);margin-bottom:2px}
.hero-next{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);font-size:12px;color:#adb8ca;z-index:2}
main{overflow:hidden}
.section{padding:92px 0}
.section-soft{background:var(--soft)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
.section-kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:8px}
.section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px}
.section-intro{color:var(--muted);max-width:530px}
.link-more{color:var(--brand);font-weight:700;white-space:nowrap}
.quick-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:13px}
.quick-item{display:flex;align-items:center;gap:13px;padding:19px;background:#fff;border:1px solid var(--line);border-radius:16px;font-weight:700}
.quick-item:first-child{background:var(--brand);color:#fff;border-color:var(--brand)}
.quick-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.icon{width:39px;height:39px;border-radius:12px;background:#fff0f3;color:var(--brand);display:grid;place-items:center;font-size:19px;flex:none}
.quick-item:first-child .icon{background:rgba(255,255,255,.18);color:#fff}
.news-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.news-feature{min-height:270px;padding:32px;border-radius:var(--radius);background:linear-gradient(135deg,#202c4c,#111a31);color:#fff;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
.news-feature:after{content:"资讯";position:absolute;right:20px;top:18px;font-size:90px;line-height:1;font-weight:900;color:rgba(255,255,255,.05)}
.news-feature h3{font-size:26px;line-height:1.35;max-width:520px;position:relative;z-index:1}
.news-feature p{color:#c4ccdb;margin-top:12px;position:relative;z-index:1}
.news-list{display:flex;flex-direction:column;gap:10px}
.news-row{padding:16px 18px;border:1px solid var(--line);border-radius:15px;background:#fff;display:grid;grid-template-columns:1fr auto;gap:10px}
.news-row:hover{border-color:#f4b7c4;box-shadow:var(--shadow)}
.news-row h3{font-size:16px;line-height:1.45}
.meta{font-size:12px;color:var(--muted);display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tag{display:inline-flex;padding:4px 9px;border-radius:30px;background:#fff0f3;color:var(--brand);font-size:11px;font-weight:700}
.trend-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.trend-panel{border-radius:var(--radius);padding:30px;background:#fff8ed;border:1px solid #f7e4c1}
.trend-panel.dark{background:var(--navy);color:#fff;border-color:var(--navy)}
.trend-panel h3{font-size:24px;margin-bottom:20px}
.trend-points{display:flex;flex-wrap:wrap;gap:9px}
.trend-points span{padding:9px 13px;border-radius:10px;background:rgba(244,184,68,.15);color:#a7700c;font-weight:700;font-size:13px}
.trend-panel.dark .trend-points span{background:rgba(255,255,255,.1);color:#e4eaf5}
.stats{display:flex;gap:30px;margin-top:27px}
.stat strong{font-size:31px;display:block}.stat small{color:var(--muted)}
.download-box{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:28px;padding:42px;box-shadow:var(--shadow)}
.download-box h2{font-size:35px;line-height:1.3;margin:8px 0 15px}
.download-box p{color:var(--muted);margin-bottom:23px}
.device-stack{height:280px;position:relative}
.device{position:absolute;width:165px;height:285px;border:7px solid #202b47;border-radius:25px;background:#f3f5f9;box-shadow:0 15px 25px rgba(17,26,49,.16);padding:28px 12px 12px}
.device:before{content:"";position:absolute;top:8px;left:50%;width:48px;height:5px;background:#202b47;border-radius:8px;transform:translateX(-50%)}
.device.one{left:34px;top:8px;transform:rotate(-10deg)}
.device.two{left:185px;top:0;transform:rotate(8deg);background:#fff}
.device-screen{height:100%;border-radius:14px;background:linear-gradient(160deg,#202d50 0 34%,#fff 34%);padding:16px 9px;color:#fff;font-size:12px}
.device-screen b{font-size:17px}.screen-line{height:9px;border-radius:5px;background:#e8ebf3;margin-top:13px}.screen-line.short{width:65%}.screen-pink{height:60px;background:#f05b78;border-radius:10px;margin-top:18px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{padding:24px 21px;border-top:3px solid var(--brand);background:#fff;border-radius:0 0 16px 16px;box-shadow:0 10px 28px rgba(30,44,75,.06)}
.step-num{color:var(--brand);font-weight:900;font-size:13px}.step h3{font-size:17px;margin:10px 0 7px}.step p{color:var(--muted);font-size:13px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature-card{padding:27px;border:1px solid var(--line);border-radius:20px;background:#fff;transition:.25s}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.feature-card .icon{margin-bottom:20px}.feature-card h3{font-size:18px;margin-bottom:7px}.feature-card p{color:var(--muted);font-size:14px}
.notice-line{display:flex;align-items:center;gap:18px;padding:17px 20px;border-radius:15px;background:#fff0f3;color:#7f2940;margin-bottom:20px}
.notice-line strong{color:var(--brand);white-space:nowrap}
.event-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.event-card{padding:29px;border-radius:22px;background:linear-gradient(135deg,#fff8ed,#fff);border:1px solid #f4e2bf}
.event-card h3{font-size:24px;margin:14px 0 7px}.event-card p{color:var(--muted)}
.date-box{display:inline-flex;gap:8px;align-items:center;color:#9b6a12;font-size:13px;font-weight:700}
.mini-events{display:grid;gap:12px}.mini-event{padding:18px;border:1px solid var(--line);border-radius:15px;background:#fff}.mini-event h3{font-size:16px}
.mobile-showcase{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center}
.mobile-showcase h2{font-size:35px;line-height:1.3;margin:8px 0 15px}.mobile-showcase p{color:var(--muted)}
.content-list{display:grid;gap:0;border-top:1px solid var(--line)}
.content-item{display:grid;grid-template-columns:80px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.content-item:hover h3{color:var(--brand)}.content-index{font-size:28px;font-weight:900;color:#dce1eb}.content-item h3{font-size:17px}.content-item p{color:var(--muted);font-size:13px}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.timeline-item{padding:24px 23px 5px;border-right:1px solid var(--line);position:relative}.timeline-item:last-child{border:0}.timeline-item:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--brand);position:absolute;top:-5px;left:23px}.timeline-item time{color:var(--brand);font-weight:800;font-size:13px}.timeline-item h3{margin:8px 0 5px;font-size:17px}.timeline-item p{color:var(--muted);font-size:13px}
.faq-list{display:grid;gap:10px;max-width:850px;margin:auto}.faq-item{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff}.faq-item summary{list-style:none;cursor:pointer;padding:18px 21px;font-weight:700;display:flex;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";color:var(--brand);font-size:20px}.faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 21px 19px;color:var(--muted);font-size:14px}
.cta{padding:64px 0;background:var(--brand);color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:34px;line-height:1.3}.cta p{color:#ffd8df;margin-top:7px}.cta .btn{background:#fff;color:var(--brand)}
.site-footer{background:#111a31;color:#c1c9d8;padding:55px 0 24px}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:40px}.footer-brand{max-width:350px}.footer-brand .logo{color:#fff;margin-bottom:16px}.footer-brand p{font-size:13px;color:#8e9bb2}.footer-links{display:flex;gap:65px}.footer-links h3{font-size:14px;color:#fff;margin-bottom:13px}.footer-links a{display:block;color:#8e9bb2;font-size:13px;margin:7px 0}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:12px;color:#76839c}
:focus-visible{outline:3px solid rgba(233,61,99,.35);outline-offset:3px}
@media(max-width:1024px){.hero-inner{gap:30px}.quick-grid{grid-template-columns:repeat(2,1fr)}.download-box{gap:20px}.container{width:min(var(--container),calc(100% - 32px))}}
@media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero{min-height:680px}.hero-inner{grid-template-columns:1fr;padding:70px 0 90px}.hero-art{min-height:300px}.dashboard{right:4%;width:90%}.section{padding:68px 0}.section-head{display:block}.section-head .link-more{display:inline-block;margin-top:15px}.news-layout,.trend-wrap,.event-grid,.download-box,.mobile-showcase{grid-template-columns:1fr}.device-stack{max-width:350px;margin:auto}.steps{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr 1fr}.footer-top{display:block}.footer-links{margin-top:30px;gap:45px}}
@media(max-width:520px){body{font-size:14px}.container{width:calc(100% - 28px)}.logo-text{font-size:14px}.logo-mark{width:34px;height:34px}.hero h1{font-size:39px;letter-spacing:-1.5px}.hero-copy{font-size:15px}.actions .btn{width:100%}.quick-grid{grid-template-columns:1fr}.news-feature{min-height:230px;padding:24px}.news-feature h3{font-size:21px}.download-box{padding:25px}.download-box h2,.mobile-showcase h2{font-size:28px}.device-stack{transform:scale(.85);transform-origin:center top;margin-bottom:-35px}.steps,.feature-grid{grid-template-columns:1fr}.stats{gap:17px}.stat strong{font-size:25px}.content-item{grid-template-columns:40px 1fr}.content-item .meta{grid-column:2}.timeline{grid-template-columns:1fr}.timeline-item{border-right:0;border-bottom:1px solid var(--line);padding-left:23px;padding-bottom:20px}.footer-links{gap:25px;flex-wrap:wrap}.cta-inner{display:block}.cta h2{font-size:28px;margin-bottom:22px}}

/* roulang page: article */
:root{
      --ink:#172033;
      --muted:#68738a;
      --soft:#f5f7fb;
      --line:#e5e9f1;
      --brand:#e93d63;
      --brand-dark:#c9284d;
      --gold:#f4b844;
      --navy:#111a31;
      --white:#fff;
      --radius:22px;
      --shadow:0 18px 50px rgba(29,42,77,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,241,.85)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#ff7a65);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(233,61,99,.25)}
    .logo-text{font-weight:800;letter-spacing:-.5px;font-size:17px}
    .logo-text small{display:block;color:var(--brand);font-size:10px;letter-spacing:1.5px;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#59647a;font-weight:600}
    .nav-links a:hover,.nav-links a.active{background:#fff0f3;color:var(--brand)}
    .nav-action{padding:11px 18px!important;background:var(--navy)!important;color:#fff!important;border-radius:12px!important}
    .nav-action:hover{background:var(--brand)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
    main{overflow:hidden}
    .article-hero{background:var(--navy);color:#fff;padding:70px 0 78px;position:relative;overflow:hidden}
    .article-hero:before{content:"";position:absolute;width:520px;height:520px;right:-150px;top:-260px;border-radius:50%;background:radial-gradient(circle,rgba(233,61,99,.72),rgba(233,61,99,0) 68%)}
    .article-hero:after{content:"NG28";position:absolute;right:7%;bottom:-32px;font-size:150px;line-height:1;font-weight:900;color:rgba(255,255,255,.045);letter-spacing:-8px}
    .article-hero .container{position:relative;z-index:1}
    .breadcrumb{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:#aeb8ca;font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:#ff9caf}
    .breadcrumb strong{color:#fff;max-width:680px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#ffb8c6;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:16px}
    .eyebrow:before{content:"";width:27px;height:2px;background:var(--brand)}
    .article-hero h1{max-width:850px;font-size:clamp(34px,5vw,62px);line-height:1.2;letter-spacing:-2px;margin:0 0 24px}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:#c9d0df}
    .tag{display:inline-flex;padding:4px 10px;border-radius:30px;background:#fff0f3;color:var(--brand);font-size:11px;font-weight:700}
    .article-hero .tag{background:rgba(255,255,255,.12);color:#ffb8c6}
    .section{padding:76px 0}
    .section-soft{background:var(--soft)}
    .summary-wrap{display:grid;grid-template-columns:1.4fr .6fr;gap:22px;align-items:stretch}
    .summary-box,.reading-box,.related-box{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:30px;box-shadow:0 8px 28px rgba(29,42,77,.04)}
    .summary-box h2,.reading-box h2,.related-box h2{font-size:24px;margin:0 0 12px}
    .summary-box p{color:var(--muted);margin:0;font-size:16px}
    .article-stats{display:flex;flex-direction:column;justify-content:center;gap:16px;background:#fff0f3;border:1px solid #ffd4dd;border-radius:var(--radius);padding:26px}
    .stat-label{display:block;color:var(--muted);font-size:12px}
    .stat-value{display:block;color:var(--brand);font-weight:800;font-size:18px}
    .content-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:56px;align-items:start}
    .article-content{font-size:17px;line-height:2;color:#303b50}
    .article-content h2{font-size:30px;line-height:1.35;color:var(--ink);margin:42px 0 17px}
    .article-content h3{font-size:22px;line-height:1.4;color:var(--ink);margin:30px 0 12px}
    .article-content p{margin:0 0 20px}
    .article-content ul,.article-content ol{padding-left:26px;margin:18px 0 24px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--brand);background:#fff0f3;color:#59647a;border-radius:0 14px 14px 0}
    .article-content img{border-radius:18px;margin:28px auto;box-shadow:var(--shadow)}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;background:#fff;font-size:15px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:12px 15px;text-align:left}
    .article-content th{background:var(--soft);color:var(--ink)}
    .article-sidebar{position:sticky;top:105px}
    .side-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:25px}
    .side-card h3{font-size:19px;margin:0 0 12px}
    .side-card p{color:#bec7d6;font-size:14px;margin:0 0 20px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:12px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(233,61,99,.25)}
    .btn-primary:hover{background:#f25373;color:#fff;transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--navy)}
    .btn-light:hover{background:#fff0f3;color:var(--brand)}
    .reading-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .reading-box p{color:var(--muted);margin:0}
    .reading-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
    .reading-list li{padding:13px 15px;border:1px solid var(--line);border-radius:13px;color:#4c5870;background:#fff}
    .reading-list li:before{content:"✓";color:var(--brand);font-weight:800;margin-right:9px}
    .cta-section{padding:70px 0;background:#fff0f3}
    .cta-box{background:var(--navy);color:#fff;border-radius:26px;padding:40px 48px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box h2{font-size:clamp(25px,3vw,36px);margin:0 0 8px}
    .cta-box p{color:#c6cedc;margin:0}
    .empty-state{text-align:center;padding:90px 20px;background:var(--soft);border-radius:var(--radius)}
    .empty-state h2{font-size:28px;margin:0 0 10px}
    .empty-state p{color:var(--muted);margin:0 0 22px}
    .site-footer{background:#111a31;color:#fff;padding:55px 0 24px}
    .footer-top{display:flex;justify-content:space-between;gap:45px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{max-width:400px}
    .footer-brand .logo-text{color:#fff}
    .footer-brand p{color:#aeb8ca;margin:18px 0 0}
    .footer-links{display:flex;gap:80px}
    .footer-links div{display:flex;flex-direction:column;gap:8px}
    .footer-links h3{font-size:14px;margin:0 0 9px}
    .footer-links a{color:#aeb8ca;font-size:13px}
    .footer-links a:hover{color:#ff8da3}
    .copyright{padding-top:22px;color:#8793a8;font-size:12px}
    :focus-visible{outline:3px solid rgba(233,61,99,.35);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links a{padding-left:9px;padding-right:9px;font-size:13px}
      .content-layout{grid-template-columns:minmax(0,1fr) 240px;gap:30px}
    }
    @media(max-width:768px){
      .navbar{height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:76px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}
      .nav-links a{width:100%;text-align:center}
      .article-hero{padding:48px 0 58px}
      .article-hero h1{letter-spacing:-1px}
      .summary-wrap,.content-layout,.reading-grid{grid-template-columns:1fr}
      .article-sidebar{position:static}
      .section{padding:55px 0}
      .cta-box{padding:30px 25px;display:block}
      .cta-box .btn{margin-top:22px}
      .footer-top{display:block}
      .footer-links{margin-top:30px;gap:45px}
    }
    @media(max-width:520px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .logo-text{font-size:14px}
      .logo-text small{font-size:8px}
      .logo-mark{width:34px;height:34px}
      .article-hero h1{font-size:34px}
      .summary-box,.reading-box,.related-box{padding:22px}
      .article-content{font-size:16px}
      .article-content h2{font-size:25px}
      .footer-links{gap:25px;justify-content:space-between}
    }

/* roulang page: category1 */
:root{--ink:#172033;--muted:#68738a;--soft:#f5f7fb;--line:#e5e9f1;--brand:#e93d63;--brand-dark:#c9284d;--gold:#f4b844;--navy:#111a31;--white:#fff;--radius:22px;--shadow:0 18px 50px rgba(29,42,77,.09);--container:1180px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,241,.85)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#ff7a65);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(233,61,99,.25)}
    .logo-text{font-weight:800;letter-spacing:-.5px;font-size:17px}
    .logo-text small{display:block;color:var(--brand);font-size:10px;letter-spacing:1.5px;line-height:1.2;text-transform:uppercase}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#59647a;font-weight:600}
    .nav-links a:hover,.nav-links a.active{background:#fff0f3;color:var(--brand)}
    .nav-action{padding:11px 18px!important;background:var(--navy)!important;color:#fff!important;border-radius:12px!important}
    .nav-action:hover{background:var(--brand)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
    main{overflow:hidden}
    .category-hero{background:var(--soft);padding:72px 0 66px;border-bottom:1px solid var(--line)}
    .crumbs{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .crumbs a:hover{color:var(--brand)}
    .crumbs span{color:#b6bdca}
    .category-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:70px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:16px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--brand)}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.18;letter-spacing:-2px;margin:0 0 20px}
    .lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:720px;margin:0}
    .category-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px}
    .stat strong{display:block;color:var(--brand);font-size:28px;line-height:1.2}
    .stat span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
    .section{padding:86px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}
    .section-kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:8px}
    h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-intro{color:var(--muted);max-width:560px;margin:0}
    .content-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:22px;align-items:start}
    .post-list{display:flex;flex-direction:column;gap:12px}
    .post-item{display:grid;grid-template-columns:1fr auto;gap:20px;padding:23px 25px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .post-item:hover{border-color:#f2a9b9;box-shadow:var(--shadow);transform:translateY(-2px)}
    .post-item h3{font-size:19px;line-height:1.45;margin:9px 0 7px}
    .post-item p{color:var(--muted);margin:0;font-size:14px}
    .meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}
    .tag{display:inline-flex;padding:4px 9px;border-radius:30px;background:#fff0f3;color:var(--brand);font-size:11px;font-weight:700}
    .read-more{align-self:center;color:var(--brand);font-weight:700;font-size:13px;white-space:nowrap}
    .read-more:hover{color:var(--brand-dark)}
    .rank-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:27px}
    .rank-card h3{margin:0 0 18px;font-size:20px}
    .rank-list{margin:0;padding:0;list-style:none}
    .rank-list li{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14px}
    .rank-list li:last-child{border-bottom:0}
    .rank-no{color:#ff91a5;font-weight:800;font-size:18px;min-width:20px}
    .rank-list a:hover{color:#ff9aae}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:16px 19px;background:#fff;border:1px solid var(--line);border-radius:15px;margin-bottom:20px}
    .filter-label{font-weight:700}
    .filter-options{display:flex;gap:8px;flex-wrap:wrap}
    .filter-options span{padding:7px 12px;border-radius:9px;background:var(--soft);color:var(--muted);font-size:13px}
    .filter-options span:first-child{background:#fff0f3;color:var(--brand);font-weight:700}
    .timeline{position:relative;max-width:900px;margin:10px auto 0;padding-left:35px}
    .timeline:before{content:"";position:absolute;left:8px;top:7px;bottom:7px;width:2px;background:#f5c3cd}
    .timeline-item{position:relative;padding:0 0 29px 25px}
    .timeline-item:before{content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 6px #fff0f3}
    .timeline-date{font-size:12px;color:var(--brand);font-weight:800;letter-spacing:.5px}
    .timeline-item h3{font-size:18px;margin:4px 0 4px}
    .timeline-item p{color:var(--muted);margin:0}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:20px;min-height:165px}
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f2b5c2}
    .topic-card .topic-icon{width:42px;height:42px;border-radius:13px;background:#fff0f3;color:var(--brand);display:grid;place-items:center;font-weight:800;margin-bottom:16px}
    .topic-card h3{font-size:18px;margin:0 0 7px}
    .topic-card p{color:var(--muted);font-size:14px;margin:0}
    .empty-state{padding:45px;text-align:center;border:1px dashed #d9deea;border-radius:18px;color:var(--muted);background:#fff}
    .empty-state strong{display:block;font-size:20px;color:var(--ink);margin-bottom:5px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:12px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(233,61,99,.22)}
    .btn-primary:hover{background:#f25373;color:#fff;transform:translateY(-2px)}
    .btn-dark{background:var(--navy);color:#fff}
    .btn-dark:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
    .more-wrap{text-align:center;margin-top:26px}
    .cta{padding:62px 0;background:linear-gradient(120deg,#fff0f3,#fff8ee)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{max-width:650px}
    .cta p{color:var(--muted);margin:10px 0 0}
    .site-footer{background:var(--navy);color:#fff;padding:54px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand p{max-width:340px;color:#aeb8ca;margin:18px 0 0}
    .footer-links{display:flex;gap:80px}
    .footer-links div{display:flex;flex-direction:column;gap:9px}
    .footer-links h3{font-size:14px;margin:0 0 8px;color:#fff}
    .footer-links a{color:#aeb8ca;font-size:13px}
    .footer-links a:hover{color:#ff9aae}
    .copyright{padding-top:22px;color:#8d99ae;font-size:12px}
    :focus-visible{outline:3px solid rgba(233,61,99,.35);outline-offset:3px}
    @media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 9px;font-size:13px}.category-layout{gap:35px}.content-grid{grid-template-columns:1fr}.rank-card{margin-top:4px}.topic-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:20px;right:20px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.category-hero{padding:50px 0}.category-layout{grid-template-columns:1fr}.category-stats{max-width:440px}.section{padding:64px 0}.section-head{display:block}.section-intro{margin-top:12px}.cta-inner,.footer-top{display:block}.cta .btn{margin-top:23px}.footer-links{margin-top:35px;gap:55px}}
    @media(max-width:520px){.container{width:min(var(--container),calc(100% - 28px))}.logo-text{font-size:14px}.logo-mark{width:34px;height:34px}.category-stats{grid-template-columns:1fr 1fr}.stat{padding:15px}.stat strong{font-size:23px}.post-item{grid-template-columns:1fr;padding:19px}.read-more{display:none}.filter-bar{display:block}.filter-options{margin-top:10px}.topic-grid{grid-template-columns:1fr}.footer-links{gap:28px}.footer-links h3{font-size:13px}}

/* roulang page: category2 */
:root{
      --ink:#172033;--muted:#68738a;--soft:#f5f7fb;--line:#e5e9f1;
      --brand:#e93d63;--brand-dark:#c9284d;--gold:#f4b844;--navy:#111a31;
      --white:#fff;--radius:22px;--shadow:0 18px 50px rgba(29,42,77,.09);--container:1180px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,241,.85)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#ff7a65);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(233,61,99,.25)}
    .logo-text{font-weight:800;letter-spacing:-.5px;font-size:17px}
    .logo-text small{display:block;color:var(--brand);font-size:10px;letter-spacing:1.5px;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#59647a;font-weight:600}
    .nav-links a:hover,.nav-links a.active{background:#fff0f3;color:var(--brand)}
    .nav-action{padding:11px 18px!important;background:var(--navy)!important;color:#fff!important;border-radius:12px!important}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
    main{overflow:hidden}
    .page-intro{padding:76px 0 58px;background:linear-gradient(135deg,#fff7f9 0%,#fff 53%,#f4f6fc 100%);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:27px}
    .crumbs a:hover{color:var(--brand)}
    .crumbs span{color:#b1b8c7}
    .intro-layout{display:grid;grid-template-columns:1fr 360px;gap:70px;align-items:end}
    .eyebrow,.section-kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:10px}
    .page-intro h1{font-size:clamp(36px,5vw,62px);line-height:1.17;letter-spacing:-2px;margin:0 0 18px}
    .page-intro h1 em{font-style:normal;color:var(--brand)}
    .intro-copy{max-width:700px;color:var(--muted);font-size:17px;margin:0}
    .intro-panel{padding:25px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
    .intro-panel strong{display:block;font-size:29px;line-height:1.2;margin-bottom:4px}
    .intro-panel p{color:var(--muted);font-size:13px;margin:0 0 17px}
    .status-line{display:flex;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);font-size:13px}
    .status-line b{color:var(--brand)}
    .section{padding:86px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:32px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-intro{color:var(--muted);max-width:540px;margin:0}
    .app-showcase{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
    .app-copy h2{margin-bottom:17px}
    .app-copy p{color:var(--muted);max-width:570px}
    .pill-row{display:flex;gap:8px;flex-wrap:wrap;margin:23px 0}
    .tag{display:inline-flex;padding:5px 11px;border-radius:30px;background:#fff0f3;color:var(--brand);font-size:11px;font-weight:700}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:12px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(233,61,99,.25)}
    .btn-primary:hover{background:#f25373;transform:translateY(-2px);color:#fff}
    .btn-dark{background:var(--navy);color:#fff}
    .btn-dark:hover{background:#273453;color:#fff;transform:translateY(-2px)}
    .device-stage{min-height:390px;border-radius:28px;background:linear-gradient(145deg,#182442,#303c61);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
    .device-stage:before{content:"NG28";position:absolute;right:-20px;top:-35px;color:rgba(255,255,255,.05);font-size:120px;font-weight:900}
    .phone{width:205px;height:365px;border:8px solid #202942;border-radius:31px;background:#fff;box-shadow:0 25px 45px rgba(0,0,0,.28);overflow:hidden;position:relative;z-index:1}
    .phone-top{height:33px;background:#f7f8fb;display:flex;align-items:center;justify-content:center;color:#8992a6;font-size:10px}
    .phone-brand{padding:18px 15px 12px;font-weight:800;font-size:15px}
    .phone-brand span{color:var(--brand)}
    .phone-banner{margin:0 12px;height:105px;border-radius:13px;padding:14px;background:linear-gradient(135deg,var(--brand),#ff986f);color:#fff}
    .phone-banner small{font-size:9px;opacity:.85}
    .phone-banner b{display:block;font-size:17px;line-height:1.35;margin-top:8px}
    .phone-lines{padding:14px 12px}
    .phone-lines i{display:block;height:10px;background:#eef0f5;border-radius:5px;margin-bottom:11px}
    .phone-lines i:nth-child(2){width:76%}.phone-lines i:nth-child(3){width:88%}
    .download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .download-card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:25px;min-height:190px;transition:.25s}
    .download-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f2b6c3}
    .download-icon{width:44px;height:44px;border-radius:14px;background:#fff0f3;color:var(--brand);display:grid;place-items:center;font-size:21px;margin-bottom:17px}
    .download-card h3{font-size:18px;margin:0 0 7px}
    .download-card p{font-size:14px;color:var(--muted);margin:0}
    .step-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
    .step-list{display:grid;gap:13px}
    .step-item{display:grid;grid-template-columns:48px 1fr;gap:15px;padding:19px;border:1px solid var(--line);border-radius:17px;background:#fff}
    .step-num{width:36px;height:36px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800}
    .step-item h3{font-size:16px;margin:0 0 3px}.step-item p{font-size:13px;color:var(--muted);margin:0}
    .interface-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}
    .interface-card{padding:26px;border-radius:20px;background:#fff;border:1px solid var(--line);min-height:180px}
    .interface-card:nth-child(2){background:#fff0f3;border-color:#ffe0e7}
    .interface-card:nth-child(3){background:#111a31;color:#fff}
    .interface-card:nth-child(3) p{color:#bdc6d8}
    .interface-card h3{font-size:18px;margin:0 0 9px}.interface-card p{color:var(--muted);font-size:14px;margin:0}
    .interface-label{font-size:12px;color:var(--brand);font-weight:800;margin-bottom:15px}
    .version-wrap{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}
    .version-row{display:grid;grid-template-columns:130px 150px 1fr;gap:18px;padding:18px 23px;border-bottom:1px solid var(--line);align-items:center}
    .version-row:last-child{border-bottom:0}.version-row.header{background:var(--navy);color:#fff;font-weight:700;font-size:13px}
    .version-row:not(.header){font-size:14px}.version-row small{color:var(--muted)}
    .faq-list{max-width:850px;margin:0 auto;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;background:transparent;padding:20px 0;text-align:left;font-weight:700;color:var(--ink)}
    .faq-question span:last-child{font-size:22px;color:var(--brand);transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-band{padding:50px 55px;border-radius:25px;background:linear-gradient(120deg,var(--brand),#f06d72);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-band h2{font-size:30px;margin:0 0 8px}.cta-band p{margin:0;color:#ffe8ed}
    .cta-band .btn{background:#fff;color:var(--brand)}
    .site-footer{background:var(--navy);color:#fff;padding:57px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand p{color:#aeb8cc;max-width:330px;margin:17px 0 0;font-size:13px}
    .footer-links{display:flex;gap:75px}.footer-links h3{font-size:14px;margin:0 0 14px}.footer-links a{display:block;color:#aeb8cc;font-size:13px;margin:7px 0}.footer-links a:hover{color:#ff91a5}
    .copyright{color:#8591a8;font-size:12px;padding-top:22px}
    :focus-visible{outline:3px solid rgba(233,61,99,.35);outline-offset:3px}
    @media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 9px;font-size:13px}.intro-layout{gap:35px}.app-showcase,.step-layout{gap:35px}}
    @media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:20px;right:20px;top:74px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.intro-layout,.app-showcase,.step-layout{grid-template-columns:1fr}.page-intro{padding:52px 0 44px}.intro-panel{max-width:420px}.section{padding:65px 0}.download-grid{grid-template-columns:1fr 1fr}.cta-band{padding:35px 28px;display:block}.cta-band .btn{margin-top:22px}.footer-top{display:block}.footer-links{margin-top:32px;gap:50px}}
    @media(max-width:520px){.container{width:min(100% - 28px,var(--container))}.logo-text{font-size:14px}.logo-text small{font-size:8px}.nav-action{display:none!important}.page-intro h1{font-size:37px}.download-grid,.interface-grid{grid-template-columns:1fr}.device-stage{min-height:360px}.version-row{grid-template-columns:1fr;gap:3px;padding:15px}.version-row.header{display:none}.version-row small{display:block}.section-head{display:block}.section-intro{margin-top:12px}.footer-links{gap:25px}.footer-links>div{flex:1}}

/* roulang page: category3 */
:root{
      --ink:#172033;
      --muted:#68738a;
      --soft:#f5f7fb;
      --line:#e5e9f1;
      --brand:#e93d63;
      --brand-dark:#c9284d;
      --gold:#f4b844;
      --navy:#111a31;
      --white:#fff;
      --radius:22px;
      --shadow:0 18px 50px rgba(29,42,77,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,241,.8)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),#ff7a65);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 8px 18px rgba(233,61,99,.25)}
    .logo-text{font-weight:800;letter-spacing:-.5px;font-size:17px}
    .logo-text small{display:block;color:var(--brand);font-size:10px;letter-spacing:1.5px;line-height:1.2;text-transform:uppercase}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#59647a;font-weight:600}
    .nav-links a:hover,.nav-links a.active{background:#fff0f3;color:var(--brand)}
    .nav-action{padding:11px 18px!important;background:var(--navy)!important;color:#fff!important;border-radius:12px!important}
    .menu-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
    main{overflow:hidden}
    .category-hero{background:var(--soft);padding:82px 0 74px;border-bottom:1px solid var(--line)}
    .category-hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}
    .eyebrow,.section-kicker{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
    .eyebrow:before{content:"";width:27px;height:2px;background:var(--brand)}
    h1,h2,h3,p{margin-top:0}
    .category-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.16;letter-spacing:-2.5px;margin:0 0 20px;max-width:760px}
    .category-hero h1 em{font-style:normal;color:var(--brand)}
    .hero-copy{color:var(--muted);font-size:17px;max-width:690px;margin-bottom:0}
    .category-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}
    .stat-box strong{display:block;font-size:31px;line-height:1.1;color:var(--navy);margin-bottom:5px}
    .stat-box span{color:var(--muted);font-size:13px}
    .section{padding:78px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:7px 0 0}
    .section-intro{color:var(--muted);max-width:560px;margin-bottom:0}
    .trend-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .tag{display:inline-flex;padding:5px 11px;border-radius:30px;background:#fff0f3;color:var(--brand);font-size:11px;font-weight:700}
    .trend-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .trend-lead{min-height:330px;border-radius:var(--radius);padding:34px;background:linear-gradient(135deg,#202c4c,#111a31);color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end}
    .trend-lead:before{content:"NG28";position:absolute;right:-12px;top:18px;font-size:112px;line-height:1;font-weight:900;color:rgba(255,255,255,.06)}
    .trend-lead:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-90px;bottom:-120px;box-shadow:0 0 0 35px rgba(255,255,255,.03),0 0 0 70px rgba(255,255,255,.025)}
    .trend-lead>*{position:relative;z-index:1}
    .trend-lead h3{font-size:27px;line-height:1.4;max-width:550px;margin:13px 0 10px}
    .trend-lead p{color:#c7cfdd;margin-bottom:0}
    .trend-list{display:flex;flex-direction:column;gap:11px}
    .trend-row{display:grid;grid-template-columns:48px 1fr;gap:15px;align-items:center;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .trend-row:hover,.topic-card:hover,.update-item:hover{border-color:#f2b8c5;box-shadow:var(--shadow);transform:translateY(-3px)}
    .trend-number{font-size:24px;font-weight:800;color:var(--brand)}
    .trend-row h3{font-size:16px;line-height:1.45;margin:0 0 3px}
    .meta{font-size:12px;color:var(--muted);display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .article-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .article-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.25s}
    .article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f0b2c0}
    .article-card h3{font-size:18px;line-height:1.45;margin:12px 0 8px}
    .article-card p{color:var(--muted);font-size:14px;margin-bottom:15px}
    .article-card .read{color:var(--brand);font-weight:700;font-size:13px}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{border:1px solid var(--line);border-radius:20px;background:#fff;padding:26px;transition:.25s}
    .topic-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:#fff0f3;color:var(--brand);font-size:20px;font-weight:800;margin-bottom:20px}
    .topic-card h3{font-size:19px;margin-bottom:8px}
    .topic-card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .timeline{position:relative;margin-top:15px;padding-left:25px}
    .timeline:before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:#f6c6d1}
    .timeline-item{position:relative;padding:0 0 27px 25px}
    .timeline-item:before{content:"";position:absolute;left:-25px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px #fff0f3}
    .timeline-item time{color:var(--brand);font-size:12px;font-weight:800}
    .timeline-item h3{font-size:17px;margin:4px 0 4px}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:#fff}
    .filter-label{font-weight:700}
    .filter-pills{display:flex;gap:8px;flex-wrap:wrap}
    .filter-pills span{padding:7px 13px;border-radius:9px;background:var(--soft);color:var(--muted);font-size:13px}
    .filter-pills span.active{background:var(--brand);color:#fff}
    .empty-state{padding:34px;text-align:center;border:1px dashed #d7dce7;border-radius:18px;color:var(--muted);background:#fff}
    .empty-state strong{display:block;color:var(--ink);font-size:18px;margin-bottom:5px}
    .more-wrap{text-align:center;margin-top:28px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:12px;font-weight:700;border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(233,61,99,.25)}
    .btn-primary:hover{background:#f25373;color:#fff;transform:translateY(-2px)}
    .btn-dark{background:var(--navy);color:#fff}
    .btn-dark:hover{background:#253253;color:#fff;transform:translateY(-2px)}
    .cta-band{padding:46px 0;background:var(--navy);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta-inner h2{font-size:clamp(25px,3vw,38px);margin-bottom:8px}
    .cta-inner p{color:#c7cfdd;margin-bottom:0}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 22px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:35px}
    .footer-brand{max-width:370px}
    .footer-brand p{color:var(--muted);font-size:14px;margin:18px 0 0}
    .footer-links{display:flex;gap:80px}
    .footer-links div{display:flex;flex-direction:column;gap:8px}
    .footer-links h3{font-size:14px;margin-bottom:8px}
    .footer-links a{color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--brand)}
    .copyright{border-top:1px solid var(--line);padding-top:19px;color:#8b94a5;font-size:12px}
    :focus-visible{outline:3px solid rgba(233,61,99,.3);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links a{padding:8px 9px;font-size:13px}
      .category-hero-inner,.trend-layout{gap:32px}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .navbar{height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:15px;right:15px;top:76px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .category-hero{padding:58px 0 52px}
      .category-hero-inner,.trend-layout{grid-template-columns:1fr}
      .category-hero h1{font-size:42px}
      .section{padding:60px 0}
      .section-head{display:block}
      .section-intro{margin-top:14px}
      .article-list{grid-template-columns:1fr}
      .cta-inner{display:block}
      .cta-inner .btn{margin-top:22px}
      .footer-top{display:block}
      .footer-links{margin-top:30px;gap:55px}
    }
    @media(max-width:520px){
      .logo-text{font-size:14px}
      .logo-mark{width:34px;height:34px}
      .category-hero h1{font-size:35px;letter-spacing:-1.5px}
      .category-stats{grid-template-columns:1fr 1fr}
      .stat-box{padding:16px}
      .stat-box strong{font-size:24px}
      .trend-lead{min-height:280px;padding:25px}
      .trend-lead h3{font-size:22px}
      .topic-grid{grid-template-columns:1fr}
      .filter-bar{display:block}
      .filter-pills{margin-top:12px}
      .footer-links{gap:28px}
      .footer-links h3{font-size:13px}
    }