/* roulang page: index */
:root{
  --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
  --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
  --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
  --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--ink);color:var(--white);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.announcement{background:#0f0c15;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
.announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.announce-mark{display:inline-flex;align-items:center;gap:8px;color:var(--lime)}
.announce-mark i{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(200,240,90,.12)}
.header{background:var(--ink);position:relative;z-index:5}
.navbar{height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:235px}
.brand-symbol{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg)}
.brand-symbol:before,.brand-symbol:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
.brand-symbol:before{width:7px;height:7px;top:6px;right:4px}.brand-symbol:after{width:4px;height:4px;bottom:6px;left:7px}
.brand strong{display:block;font-size:16px;letter-spacing:.1px}
.brand small{display:block;color:var(--muted);font-size:11px;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 12px;color:var(--muted);font-size:14px;border-bottom:2px solid transparent;transition:var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--lime);border-color:var(--lime)}
.nav-actions{display:flex;gap:9px;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#dbff76;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}
.btn-outline{border:1px solid var(--line);color:var(--white);background:transparent}
.btn-outline:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.menu-toggle{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:22px}
.hero{position:relative;overflow:hidden;padding:92px 0 88px;background:var(--ink-2)}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(121,215,208,.15);border-radius:50%;right:-160px;top:-180px}
.hero:after{content:"";position:absolute;width:8px;height:8px;background:var(--orange);border-radius:50%;right:19%;top:22%;box-shadow:-130px 90px 0 2px rgba(200,240,90,.6),-260px -50px 0 1px rgba(121,215,208,.6)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:72px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:18px}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;max-width:700px;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-copy{color:var(--muted);max-width:610px;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin:31px 0 32px;flex-wrap:wrap}
.trust-row{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.trust-row span{display:inline-flex;align-items:center;gap:7px}.trust-row b{color:var(--aqua);font-size:16px}
.entry-board{background:#191522;border:1px solid var(--line);border-radius:24px;padding:25px;box-shadow:var(--shadow);transform:rotate(1deg)}
.board-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--line)}
.board-title{font-weight:700}.status{color:var(--lime);font-size:12px}.status:before{content:"";display:inline-block;width:7px;height:7px;background:var(--lime);border-radius:50%;margin-right:6px}
.board-screen{background:var(--panel);border-radius:16px;margin:22px 0;padding:23px}
.screen-logo{display:flex;align-items:center;gap:10px;color:var(--white);font-weight:700;margin-bottom:25px}
.screen-logo i{width:28px;height:28px;border:2px solid var(--aqua);border-radius:9px}
.fake-field{height:45px;border:1px solid var(--line);border-radius:9px;margin:10px 0;color:var(--muted);font-size:13px;padding:9px 13px}
.board-link{display:flex;justify-content:space-between;align-items:center;color:var(--aqua);font-size:13px;margin-top:16px}
.board-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.mini-stat{background:#211a2c;border-radius:10px;padding:12px 10px;font-size:12px;color:var(--muted)}.mini-stat strong{display:block;color:var(--white);font-size:14px;margin-bottom:3px}
.section{padding:92px 0}.section-light{background:var(--cream);color:var(--ink-2)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
.section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}
.section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em}
.section-intro{color:var(--muted-light);max-width:510px}
.step-track{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:28px 22px 25px;border-right:1px solid var(--line);transition:var(--ease)}
.step:last-child{border-right:0}.step:hover{background:var(--panel)}
.step-num{color:var(--orange);font-weight:800;font-size:13px}.step h3{font-size:19px;margin:13px 0 6px}.step p{color:var(--muted);font-size:14px}.step a{display:inline-block;color:var(--aqua);font-size:13px;margin-top:14px}
.download{background:var(--cream);color:var(--ink-2);padding:90px 0}
.download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
.download h2{font-size:40px;line-height:1.3;margin-bottom:17px}.download p{color:var(--muted-light)}
.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.tag{border:1px solid var(--line-light);padding:5px 10px;border-radius:8px;color:var(--muted-light);font-size:12px}
.download .btn-outline{border-color:#b8b0a8;color:var(--ink-2)}.download .btn-outline:hover{border-color:var(--ink-2);color:var(--ink-2)}
.device-row{display:flex;align-items:end;justify-content:center;gap:20px}
.device{width:174px;border:7px solid var(--ink-2);border-radius:28px;background:#211a2c;padding:10px;box-shadow:var(--shadow)}
.device.tall{height:330px}.device.small{width:142px;height:260px;margin-bottom:22px}
.device-notch{width:56px;height:6px;border-radius:5px;background:#4c4055;margin:2px auto 17px}
.app-block{background:var(--aqua);height:48px;border-radius:8px;margin-bottom:10px}.app-line{height:11px;border-radius:5px;background:#55435e;margin:12px 6px}.app-line.short{width:65%}.app-pill{height:35px;border-radius:8px;background:var(--lime);margin:20px 6px}
.login-section{background:#21192d}.login-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}.login-copy p{color:var(--muted);margin-top:16px}
.info-panel{border:1px solid var(--line);border-radius:18px;padding:10px}
.info-row{display:flex;gap:17px;padding:20px;border-bottom:1px solid var(--line)}.info-row:last-child{border-bottom:0}.info-icon{color:var(--lime);font-weight:800;font-size:19px}.info-row h3{font-size:17px;margin-bottom:3px}.info-row p{font-size:14px;color:var(--muted)}
.news{background:var(--cream);color:var(--ink-2)}.news-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}.feature-news,.news-list{background:#fff;border:1px solid var(--line-light);border-radius:18px}.feature-news{padding:30px;border-left:5px solid var(--orange)}.news-label{color:#b95d2c;font-size:12px;font-weight:800}.feature-news h3{font-size:25px;line-height:1.4;margin:16px 0 10px}.feature-news p,.news-item p{color:var(--muted-light);font-size:14px}.news-meta{font-size:12px;color:var(--muted-light);margin-top:21px}.news-item{display:block;padding:20px 24px;border-bottom:1px solid var(--line-light);transition:var(--ease)}.news-item:last-child{border:0}.news-item:hover{background:#faf8f3;padding-left:29px}.news-item h3{font-size:16px;margin:5px 0 3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.faq{background:#e9e3d9;color:var(--ink-2)}.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}.faq-list{border-top:1px solid #cfc8bd}.faq-item{border-bottom:1px solid #cfc8bd}.faq-item summary{cursor:pointer;list-style:none;padding:20px 0;font-weight:700;display:flex;justify-content:space-between;gap:20px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:#b95d2c;font-size:22px}.faq-item[open] summary:after{content:"−"}.faq-answer{color:var(--muted-light);font-size:14px;padding:0 35px 20px 0}
.cta{padding:70px 0;background:var(--lime);color:var(--ink)}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:32px;line-height:1.3}.cta p{margin-top:7px;font-size:14px}.cta-actions{display:flex;gap:10px}.cta .btn-primary{background:var(--ink);color:var(--lime)}.cta .btn-outline{border-color:var(--ink);color:var(--ink)}
.footer{background:#100d16;padding:55px 0 25px;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}.footer strong{color:var(--white);font-size:17px}.footer h3{font-size:14px;color:var(--white);margin-bottom:15px}.footer a{display:block;font-size:13px;margin:8px 0;transition:var(--ease)}.footer a:hover{color:var(--lime)}.footer-brand p{font-size:13px;max-width:280px;margin-top:13px}.copyright{border-top:1px solid var(--line);padding-top:20px;font-size:12px;display:flex;justify-content:space-between;gap:20px}
@media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 7px}.hero-grid{gap:38px}.download-grid{gap:35px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.navbar{height:70px}.brand{min-width:0}.brand strong{font-size:14px}.brand small{display:none}.nav-links,.nav-actions .btn-outline{display:none}.nav-actions{margin-left:auto}.menu-toggle{display:block}.nav-links.open{display:flex;position:absolute;top:70px;left:0;right:0;background:var(--ink-2);padding:15px 20px 22px;flex-direction:column;align-items:stretch;border-top:1px solid var(--line)}.nav-links.open a{padding:13px 10px;border-bottom:1px solid var(--line)}.hero{padding:64px 0}.hero-grid,.download-grid,.login-grid,.news-grid,.faq-grid{grid-template-columns:1fr}.hero h1{font-size:39px}.entry-board{max-width:510px;margin:auto}.section,.download{padding:66px 0}.section-head{display:block;margin-bottom:28px}.section-intro{margin-top:12px}.step-track{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.download h2{font-size:31px}.device-row{order:-1}.login-grid,.faq-grid{gap:30px}.cta-inner{display:block}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.announcement .container{height:36px;white-space:nowrap;overflow:hidden}.announcement .container span:last-child{display:none}.hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn,.cta-actions .btn{width:100%}.trust-row{gap:10px 16px}.step-track{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.device.tall{width:155px;height:290px}.device.small{width:110px;height:215px}.news-item h3{white-space:normal}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: index */
:root{
            --ink:#17131f;--panel:#241d31;--panel-2:#2b2238;--cream:#f4f1ea;
            --lime:#c8f05a;--orange:#ff9a5c;--mint:#79d7d0;--white:#fff9f0;
            --muted:#bdb5c9;--cream-muted:#6f6678;--line:rgba(255,255,255,.13);
            --cream-line:#ded8d0;--radius:18px;--shadow:0 18px 40px rgba(19,12,27,.16);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--ink);color:var(--white);line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none}
        button{font:inherit;border:0;cursor:pointer}
        img{max-width:100%;display:block}
        .container{width:min(1180px,calc(100% - 48px));margin:auto}
        .notice{background:#100d16;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
        .notice-inner{min-height:38px;display:flex;align-items:center;gap:12px}
        .notice-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(200,240,90,.1)}
        .header{position:sticky;top:0;z-index:20;background:rgba(23,19,31,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:11px;min-width:250px}
        .logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative}
        .logo-mark:before,.logo-mark:after{content:"";position:absolute;border:1px solid var(--mint);border-radius:50%}
        .logo-mark:before{inset:7px 3px;transform:rotate(35deg)}
        .logo-mark:after{inset:3px 7px;transform:rotate(-35deg)}
        .logo strong{font-size:17px;line-height:1.2;letter-spacing:-.4px}
        .logo small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
        .nav{display:flex;align-items:center;gap:5px;flex:1}
        .nav a{padding:9px 12px;color:var(--muted);font-size:14px;border-radius:9px;transition:var(--ease);white-space:nowrap}
        .nav a:hover,.nav a.active{color:var(--lime);background:rgba(200,240,90,.08)}
        .nav a.active{box-shadow:inset 0 -2px var(--lime)}
        .nav-actions{display:flex;gap:9px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 17px;border-radius:10px;font-size:14px;font-weight:700;transition:var(--ease);white-space:nowrap}
        .btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,240,90,.16)}
        .btn:focus-visible,.nav a:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .btn-primary{background:var(--lime);color:var(--ink)}
        .btn-secondary{border:1px solid var(--line);color:var(--white);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint)}
        .menu-btn{display:none;background:transparent;color:var(--white);font-size:24px}
        .hero{position:relative;overflow:hidden;padding:105px 0 72px;background:var(--panel)}
        .hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(121,215,208,.16);border-radius:50%;right:-160px;top:-190px}
        .hero:after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:var(--orange);right:18%;top:22%;box-shadow:-90px 90px var(--lime),-190px 18px var(--mint)}
        .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:70px;align-items:center}
        .eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
        h1{font-size:clamp(34px,5vw,58px);line-height:1.16;letter-spacing:-2px;margin:20px 0 20px;max-width:720px}
        .hero-copy{color:var(--muted);max-width:610px;font-size:17px}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .hero-points{display:flex;gap:24px;margin-top:38px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .hero-points span:before{content:"✓";color:var(--lime);margin-right:7px;font-weight:800}
        .entry-board{background:var(--ink);border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:var(--shadow)}
        .board-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:22px;border-bottom:1px solid var(--line)}
        .board-title{font-weight:800;font-size:18px}.status{color:var(--lime);font-size:12px}
        .status:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);margin-right:7px}
        .entry-box{margin:24px 0;padding:18px;background:var(--panel-2);border-radius:13px}
        .entry-label{font-size:12px;color:var(--muted);margin-bottom:6px}.entry-value{font-size:17px;color:var(--white);font-weight:700}
        .board-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .mini-card{padding:16px;border:1px solid var(--line);border-radius:12px}.mini-card b{display:block;color:var(--mint);font-size:20px}.mini-card span{color:var(--muted);font-size:12px}
        .trust{background:var(--ink);border-bottom:1px solid var(--line)}
        .trust-inner{display:flex;justify-content:space-between;gap:20px;padding:22px 0;color:var(--muted);font-size:13px;flex-wrap:wrap}
        .trust-inner span{display:flex;align-items:center;gap:8px}.trust-inner i{width:8px;height:8px;border-radius:50%;background:var(--mint)}
        .section{padding:94px 0}.section-light{background:var(--cream);color:var(--ink)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:38px}
        .section-kicker{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.12em}
        h2{font-size:clamp(28px,4vw,40px);line-height:1.25;letter-spacing:-1px;margin-top:7px}
        .section-intro{max-width:430px;color:var(--muted);font-size:15px}.section-light .section-intro{color:var(--cream-muted)}
        .route{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .route-item{padding:28px 22px 30px;border-right:1px solid var(--line);transition:var(--ease)}
        .route-item:last-child{border:0}.route-item:hover{background:var(--panel)}
        .route-num{color:var(--orange);font-size:12px;font-weight:800}.route-icon{font-size:24px;margin:18px 0 7px;color:var(--lime)}
        .route-item h3{font-size:19px;margin-bottom:5px}.route-item p{font-size:13px;color:var(--muted)}
        .download{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
        .download-copy p{color:var(--cream-muted);margin:20px 0 27px}
        .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.download-meta span{border:1px solid var(--cream-line);border-radius:8px;padding:6px 10px;color:var(--cream-muted);font-size:12px}
        .preview-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;align-items:end}
        .screen{background:var(--ink);border:7px solid #30283b;border-radius:22px;padding:14px 11px;min-height:260px;box-shadow:var(--shadow)}
        .screen:nth-child(2){min-height:315px;border-color:#40334a}.screen:nth-child(3){min-height:280px}
        .screen-top{height:8px;width:45%;background:var(--lime);border-radius:5px;margin-bottom:20px}
        .screen-line{height:10px;background:#554662;border-radius:5px;margin:12px 0}.screen-line.short{width:58%}.screen-block{height:62px;background:var(--panel-2);border-radius:10px;margin-top:20px}.screen-label{font-size:11px;color:var(--muted)}
        .login-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:35px;align-items:stretch}
        .step-list{display:grid;gap:12px}.step{display:flex;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}.step:last-child{border:0}.step-no{flex:none;width:30px;height:30px;border-radius:50%;background:var(--lime);color:var(--ink);font-weight:800;text-align:center;line-height:30px}.step h3{font-size:17px}.step p{font-size:13px;color:var(--muted)}
        .notice-card{padding:28px;background:var(--panel);border-radius:var(--radius);border-left:4px solid var(--orange)}
        .notice-card h3{font-size:21px;margin-bottom:14px}.notice-card p{color:var(--muted);font-size:14px}.notice-card ul{list-style:none;margin-top:20px}.notice-card li{padding:11px 0;border-top:1px solid var(--line);font-size:14px}.notice-card li:before{content:"→";color:var(--lime);margin-right:10px}
        .news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}
        .news-main,.news-list{background:var(--panel);border-radius:var(--radius);padding:28px}.news-main{border-top:4px solid var(--orange);min-height:280px}.news-main h3{font-size:25px;line-height:1.4;margin:20px 0 12px}.news-main p,.news-item p{color:var(--muted);font-size:14px}.news-meta{display:flex;gap:12px;color:var(--orange);font-size:12px}.news-item{display:block;padding:14px 0;border-bottom:1px solid var(--line);transition:var(--ease)}.news-item:last-child{border:0}.news-item:hover{padding-left:7px}.news-item h4{font-size:16px;margin-bottom:2px}.news-item .news-meta{color:var(--mint);margin-bottom:3px}.empty{color:var(--muted);padding:35px 0}
        .faq-wrap{max-width:850px}.faq{border-bottom:1px solid var(--cream-line)}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:21px 0;font-weight:700;font-size:17px}summary::-webkit-details-marker{display:none}summary:after{content:"+";font-size:23px;color:var(--orange);font-weight:400}details[open] summary:after{content:"−"}details p{padding:0 42px 22px 0;color:var(--cream-muted);font-size:14px}
        .cta{padding:70px 0;background:var(--panel-2)}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{max-width:650px}.cta p{color:var(--muted);margin-top:8px}.cta-actions{display:flex;gap:11px;flex-shrink:0}
        footer{background:#100d16;padding:58px 0 25px;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px;padding-bottom:45px}.footer-brand strong{color:var(--white);font-size:18px;display:block;margin-bottom:10px}.footer-brand p{font-size:13px;max-width:280px}.footer-col h4{color:var(--white);font-size:14px;margin-bottom:14px}.footer-col a{display:block;font-size:13px;margin:8px 0;transition:var(--ease)}.footer-col a:hover{color:var(--lime)}.copyright{border-top:1px solid var(--line);padding-top:20px;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
        @media(max-width:1024px){.nav-wrap{gap:15px}.logo{min-width:220px}.nav a{padding:8px 7px}.nav-actions .btn{padding:10px 12px}.hero-grid{gap:35px}.download{gap:35px}}
        @media(max-width:768px){.container{width:min(100% - 40px,600px)}.nav-wrap{height:68px}.logo{min-width:0;flex:1}.logo strong{font-size:15px}.nav,.nav-actions .btn-secondary{display:none}.nav-actions{order:2}.menu-btn{display:block;order:3}.hero{padding:70px 0 55px}.hero-grid,.download,.login-panel,.news-layout{grid-template-columns:1fr}.hero-grid{gap:40px}h1{letter-spacing:-1.2px}.section{padding:68px 0}.section-head{display:block}.section-intro{margin-top:12px}.route{grid-template-columns:1fr 1fr}.route-item:nth-child(2){border-right:0}.route-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.download{gap:40px}.preview-strip{max-width:500px;margin:auto}.cta-inner{display:block}.cta-actions{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
        @media(max-width:520px){.notice-inner{white-space:nowrap;overflow:hidden}.nav-actions .btn-primary{padding:9px 11px;font-size:12px}.hero-actions,.hero-actions .btn,.cta-actions,.cta-actions .btn{width:100%}.hero-points{gap:10px;display:grid}.route{grid-template-columns:1fr}.route-item,.route-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)!important}.route-item:last-child{border-bottom:0!important}.preview-strip{gap:8px}.screen{padding:10px 8px;min-height:210px!important;border-width:5px}.news-main,.news-list{padding:22px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:7px}}

/* roulang page: article */
:root{
        --ink:#17131f;
        --ink-2:#241d31;
        --panel:#2b2238;
        --cream:#f4f1ea;
        --lime:#c8f05a;
        --orange:#ff9a5c;
        --aqua:#79d7d0;
        --white:#fff9f0;
        --muted:#bdb5c9;
        --muted-light:#6f6678;
        --line:rgba(255,255,255,.13);
        --line-light:#ded8d0;
        --radius:18px;
        --shadow:0 18px 45px rgba(20,12,30,.18);
        --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
        margin:0;
        background:var(--ink);
        color:var(--white);
        font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
        font-size:16px;
        line-height:1.75;
    }
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    button{font:inherit;border:0;cursor:pointer}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .announcement{height:38px;background:#100d16;border-bottom:1px solid rgba(255,255,255,.08);color:var(--muted);font-size:12px}
    .announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .announcement strong{color:var(--lime);font-weight:700}
    .announcement span:last-child{color:var(--aqua)}
    .header{position:relative;z-index:10;background:var(--ink)}
    .nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:12px;min-width:235px}
    .logo-mark{
        width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;
        position:relative;transform:rotate(12deg);flex:none
    }
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
    .logo-mark:before{width:7px;height:7px;top:6px;right:4px}
    .logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}
    .logo strong{display:block;font-size:16px;letter-spacing:.01em}
    .logo small{display:block;color:var(--muted);font-size:11px;line-height:1.3;margin-top:2px}
    .nav{display:flex;align-items:center;gap:2px}
    .nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
    .nav-actions{display:flex;gap:9px;white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#dbff76;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}
    .btn-secondary,.btn-outline{background:transparent;color:var(--white);border:1px solid var(--line)}
    .btn-secondary:hover,.btn-outline:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
    .menu-btn{display:none;width:44px;height:44px;border-radius:10px;background:var(--panel);color:var(--white);font-size:21px}
    .article-hero{
        position:relative;overflow:hidden;padding:72px 0 68px;
        background:var(--ink-2);border-top:1px solid rgba(255,255,255,.05)
    }
    .article-hero:before{
        content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(121,215,208,.14);
        border-radius:50%;right:-170px;top:-250px
    }
    .article-hero:after{
        content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:var(--orange);
        right:18%;top:35%;box-shadow:-160px 76px 0 2px rgba(200,240,90,.55),-285px -60px 0 1px rgba(121,215,208,.55)
    }
    .breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px;margin:0 0 25px}
    .breadcrumb a{color:var(--aqua)}
    .breadcrumb i{font-style:normal;color:#756b80}
    .article-hero-grid{position:relative;z-index:1;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
    .article-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-.04em;margin:0 0 20px;color:var(--white)}
    .article-lead{max-width:770px;color:var(--muted);font-size:17px;margin:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:25px;color:var(--muted);font-size:13px}
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .article-meta b{color:var(--aqua);font-weight:600}
    .tag{display:inline-flex;align-items:center;border:1px solid var(--line-light);padding:4px 10px;border-radius:8px;color:var(--muted-light);font-size:12px;background:rgba(255,255,255,.32)}
    .article-shell{background:var(--cream);color:var(--ink-2);padding:80px 0 92px}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 270px;gap:56px;align-items:start}
    .article-content{
        background:#fff;border:1px solid var(--line-light);border-radius:22px;
        padding:clamp(26px,5vw,56px);box-shadow:0 12px 30px rgba(36,29,49,.06)
    }
    .article-content h2{font-size:30px;line-height:1.35;margin:34px 0 15px;color:var(--ink-2)}
    .article-content h3{font-size:21px;line-height:1.45;margin:28px 0 10px;color:var(--ink-2)}
    .article-content h2:first-child,.article-content h3:first-child{margin-top:0}
    .article-content p{margin:0 0 18px;color:#40384b}
    .article-content ul,.article-content ol{padding-left:25px;margin:14px 0 22px;color:#40384b}
    .article-content li{padding:4px 0}
    .article-content a{color:#4c8f8a;text-decoration:underline;text-underline-offset:3px}
    .article-content blockquote{
        margin:25px 0;padding:17px 20px;border-left:4px solid var(--orange);
        background:#fff5eb;color:#594b43;border-radius:0 12px 12px 0
    }
    .article-content img{border-radius:14px;margin:24px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:22px 0;display:block;overflow-x:auto}
    .article-content th,.article-content td{padding:11px 14px;border:1px solid var(--line-light);text-align:left;white-space:nowrap}
    .article-content th{background:#f0ece5}
    .empty-state{text-align:center;padding:35px 10px;color:var(--muted-light)}
    .empty-state strong{display:block;font-size:24px;color:var(--ink-2);margin-bottom:10px}
    .side-stack{position:sticky;top:22px}
    .side-card{background:#ebe5dc;border:1px solid var(--line-light);border-radius:16px;padding:22px;margin-bottom:17px}
    .side-card h3{font-size:16px;margin:0 0 14px}
    .side-card p{color:var(--muted-light);font-size:13px;margin:0 0 17px}
    .side-links{display:grid;gap:2px}
    .side-links a{padding:9px 0;color:#5e5368;font-size:13px;border-bottom:1px solid #d8d0c5;transition:var(--ease)}
    .side-links a:last-child{border-bottom:0}
    .side-links a:hover{color:#4c8f8a;padding-left:5px}
    .download-card{background:var(--ink-2);color:var(--white);border-radius:16px;padding:22px}
    .download-card h3{font-size:18px;margin:0 0 8px}
    .download-card p{color:var(--muted);font-size:13px;margin-bottom:17px}
    .download-card .btn{width:100%}
    .article-bottom{margin-top:28px}
    .article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .related-strip{margin-top:42px;padding-top:30px;border-top:1px solid var(--line-light)}
    .related-strip h2{font-size:23px;margin:0 0 18px}
    .related-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .related-link{display:block;background:#f8f6f1;border:1px solid var(--line-light);border-radius:12px;padding:15px 17px;color:#4e455b;transition:var(--ease)}
    .related-link:hover{border-color:var(--aqua);transform:translateY(-2px)}
    .related-link small{display:block;color:var(--muted-light);font-size:12px;margin-top:3px}
    footer{background:var(--ink);padding:58px 0 22px;color:var(--white)}
    .footer-grid{display:grid;grid-template-columns:1.55fr repeat(3,1fr);gap:40px}
    .footer-brand strong{font-size:18px}
    .footer-brand p{max-width:310px;color:var(--muted);font-size:13px;margin:13px 0 0}
    .footer-col{display:grid;align-content:start;gap:7px}
    .footer-col h4{font-size:14px;margin:0 0 9px;color:var(--lime)}
    .footer-col a{font-size:13px;color:var(--muted);transition:var(--ease)}
    .footer-col a:hover{color:var(--aqua);padding-left:4px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:42px;padding-top:18px;color:#867b91;font-size:12px}
    @media(max-width:1100px){
        .nav a{padding-left:7px;padding-right:7px;font-size:12px}
        .nav-actions{display:none}
        .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:28px}
    }
    @media(max-width:820px){
        .nav{display:none;position:absolute;top:100%;left:20px;right:20px;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
        .nav.open{display:grid}
        .nav a{padding:12px 14px;border-bottom:0;border-left:3px solid transparent}
        .nav a:hover,.nav a.active{border-left-color:var(--lime);border-bottom:0}
        .menu-btn{display:block}
        .nav-wrap{min-height:74px}
        .logo{min-width:0}
        .article-layout{display:block}
        .side-stack{position:static;margin-top:25px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .side-card,.download-card{margin:0}
    }
    @media(max-width:560px){
        .container{width:min(100% - 32px,1180px)}
        .announcement .container{overflow:hidden;white-space:nowrap}
        .announcement span:last-child{display:none}
        .logo strong{font-size:14px}
        .logo small{font-size:10px}
        .article-hero{padding:47px 0 48px}
        .article-hero h1{font-size:34px}
        .article-lead{font-size:15px}
        .article-shell{padding:45px 0 58px}
        .article-content{padding:25px 20px;border-radius:16px}
        .article-content h2{font-size:25px}
        .article-content h3{font-size:19px}
        .side-stack{display:block}
        .side-card,.download-card{margin-bottom:15px}
        .related-links{grid-template-columns:1fr}
        .copyright{display:block;line-height:2}
        .copyright span{display:block}
        .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
        .footer-brand{grid-column:1/-1}
        .btn{min-height:45px}
    }

/* roulang page: category1 */
:root{
      --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
      --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
      --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
      --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .announcement{height:38px;background:#100d16;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line)}
    .announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .announcement strong{color:var(--lime);font-weight:700}
    .header{background:var(--ink);position:relative;z-index:5}
    .nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .logo{display:flex;align-items:center;gap:12px;min-width:238px}
    .logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg)}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
    .logo-mark:before{width:7px;height:7px;top:6px;right:4px}
    .logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}
    .logo strong{display:block;font-size:16px;letter-spacing:.1px}
    .logo small{display:block;color:var(--muted);font-size:11px;margin-top:1px}
    .nav{display:flex;align-items:center;gap:3px}
    .nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
    .nav-actions{display:flex;gap:9px;white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#dbff76;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}
    .btn-secondary,.btn-outline{border:1px solid var(--line);color:var(--white);background:transparent}
    .btn-secondary:hover,.btn-outline:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .menu-btn{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:22px}
    .hero{position:relative;overflow:hidden;padding:76px 0 82px;background:var(--ink-2)}
    .hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(121,215,208,.15);border-radius:50%;right:-170px;top:-190px}
    .hero:after{content:"";position:absolute;width:8px;height:8px;background:var(--orange);border-radius:50%;right:19%;top:22%;box-shadow:-130px 90px 0 2px rgba(200,240,90,.6),-260px -50px 0 1px rgba(121,215,208,.6)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:76px;align-items:center}
    .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:23px}
    .breadcrumb a{color:var(--aqua)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin-bottom:22px}
    h1 em{font-style:normal;color:var(--lime)}
    .hero-copy{color:var(--muted);max-width:630px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;margin:30px 0 30px;flex-wrap:wrap}
    .trust-row{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .trust-row span{display:inline-flex;align-items:center;gap:7px}
    .trust-row b{color:var(--aqua);font-size:16px}
    .entry-panel{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
    .panel-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:21px}
    .panel-title{display:flex;align-items:center;gap:10px;font-weight:700}
    .panel-title i{width:28px;height:28px;border:2px solid var(--aqua);border-radius:9px;display:inline-block}
    .status{font-size:12px;color:var(--lime);background:rgba(200,240,90,.1);border-radius:20px;padding:5px 9px}
    .entry-address{background:#17131f;border-radius:12px;padding:16px 17px;margin-bottom:18px}
    .entry-address small{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}
    .entry-address strong{display:block;font-size:15px;color:var(--white);word-break:break-all}
    .entry-line{display:flex;gap:13px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}
    .entry-line:last-child{border-bottom:0}
    .entry-line b{color:var(--lime);font-size:18px;line-height:1.4}
    .entry-line span{color:var(--muted)}
    .section{padding:88px 0}
    .section-light{background:var(--cream);color:var(--ink-2)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
    .section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}
    .section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em;margin-bottom:0}
    .section-intro{color:var(--muted-light);max-width:520px}
    .topic-nav{display:flex;gap:10px;overflow:auto;padding:5px 0 19px;margin-bottom:35px;border-bottom:1px solid var(--line-light)}
    .topic-nav a{flex:0 0 auto;padding:10px 15px;border:1px solid var(--line-light);border-radius:9px;color:var(--muted-light);font-size:13px;transition:var(--ease)}
    .topic-nav a:hover,.topic-nav a.active{background:var(--ink-2);border-color:var(--ink-2);color:var(--lime)}
    .guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:25px}
    .guide-card{background:#fff;border:1px solid var(--line-light);border-radius:18px;padding:28px;transition:var(--ease)}
    .guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .guide-card h3{font-size:21px;margin-bottom:10px}
    .guide-card p{color:var(--muted-light);font-size:14px;margin-bottom:0}
    .number{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:9px;background:var(--lime);color:var(--ink);font-weight:800;margin-bottom:20px}
    .check-list{list-style:none;padding:0;margin:22px 0 0}
    .check-list li{position:relative;padding:12px 0 12px 28px;border-bottom:1px solid var(--line-light);color:var(--muted-light);font-size:14px}
    .check-list li:last-child{border-bottom:0}
    .check-list li:before{content:"✓";position:absolute;left:0;color:#809e18;font-weight:800}
    .dark-section{background:#21192d}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .step{position:relative;padding:27px 24px;background:var(--panel);border-right:1px solid var(--line)}
    .step:last-child{border-right:0}
    .step-num{color:var(--orange);font-weight:800;font-size:13px}
    .step h3{font-size:18px;margin:10px 0 6px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .step a{display:inline-block;color:var(--aqua);font-size:13px;margin-top:14px}
    .faq{background:#e9e3d9;color:var(--ink-2)}
    .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:65px;align-items:start}
    .faq-lead p{color:var(--muted-light);max-width:400px}
    .faq-list{border-top:1px solid #cfc7bc}
    details{border-bottom:1px solid #cfc7bc;padding:19px 0}
    summary{cursor:pointer;list-style:none;font-weight:700;padding-right:30px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:3px;color:#92704d;font-size:22px;font-weight:400;top:-2px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted-light);font-size:14px;margin:12px 28px 0 0}
    .cta{padding:64px 0;background:var(--lime);color:var(--ink)}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(26px,4vw,38px);margin-bottom:8px}
    .cta p{margin:0;color:#4c5a1c;font-size:14px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .cta .btn-primary{background:var(--ink);color:var(--white)}
    .cta .btn-outline{border-color:var(--ink);color:var(--ink)}
    footer{background:var(--ink);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}
    .footer-brand strong{font-size:18px}
    .footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:13px}
    .footer-col h4{font-size:14px;margin-bottom:15px;color:var(--white)}
    .footer-col a{display:block;color:var(--muted);font-size:13px;margin:9px 0;transition:var(--ease)}
    .footer-col a:hover{color:var(--lime);padding-left:3px}
    .copyright{border-top:1px solid var(--line);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:12px}
    @media(max-width:1100px){
      .nav{gap:0}.nav a{padding:8px 7px;font-size:12px}.nav-actions{display:none}
      .hero-grid{gap:40px}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}
    }
    @media(max-width:800px){
      .nav{display:none}.menu-btn{display:block}.nav-wrap{min-height:72px}
      .logo{min-width:0}.logo strong{font-size:14px}
      .hero{padding:57px 0 65px}.hero-grid,.guide-grid,.faq-grid{grid-template-columns:1fr;gap:34px}
      .section{padding:66px 0}.steps{grid-template-columns:1fr 1fr}
      .step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .section-head{display:block}.section-intro{margin-top:14px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}.cta-inner{display:block}.cta-actions{margin-top:22px}
    }
    @media(max-width:520px){
      .container{width:min(100% - 32px,1180px)}.announcement .container{white-space:nowrap;overflow:hidden}
      .announcement .container span:last-child{display:none}.hero h1{font-size:36px}.hero-copy{font-size:15px}
      .hero-actions .btn{width:100%}.entry-panel{padding:21px}.steps{grid-template-columns:1fr}
      .step,.step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}
      .step:last-child{border-bottom:0}.guide-card{padding:23px}.footer-grid{grid-template-columns:1fr}
      .copyright{display:block}.copyright span{display:block;margin-bottom:6px}
    }

/* roulang page: category3 */
:root{
        --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
        --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
        --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
        --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
        --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .announcement{height:38px;background:#100d16;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line)}
    .announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .announcement strong{color:var(--lime);font-weight:700}
    .announcement span:last-child{color:var(--aqua)}
    .header{background:var(--ink);position:relative;z-index:5}
    .nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .logo{display:flex;align-items:center;gap:11px;min-width:245px}
    .logo-mark{width:37px;height:37px;border:2px solid var(--lime);border-radius:11px;display:block;position:relative;transform:rotate(12deg)}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
    .logo-mark:before{width:7px;height:7px;right:3px;top:5px}
    .logo-mark:after{width:4px;height:4px;left:6px;bottom:6px}
    .logo strong{display:block;font-size:16px;line-height:1.3}
    .logo small{display:block;color:var(--muted);font-size:11px;line-height:1.4}
    .nav{display:flex;align-items:center;gap:2px}
    .nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
    .nav-actions{display:flex;gap:8px;white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:750;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#dcff77;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.2)}
    .btn-secondary{background:transparent;border:1px solid var(--line);color:var(--white)}
    .btn-secondary:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .menu-btn{display:none;width:44px;height:44px;border-radius:10px;background:var(--panel);color:var(--white);font-size:21px}
    .hero{position:relative;overflow:hidden;padding:78px 0 82px;background:var(--ink-2)}
    .hero:before{content:"";position:absolute;width:570px;height:570px;border:1px solid rgba(121,215,208,.15);border-radius:50%;right:-220px;top:-250px}
    .hero:after{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:var(--orange);right:18%;top:25%;box-shadow:-145px 90px 0 2px rgba(200,240,90,.55),-280px -35px 0 1px rgba(121,215,208,.6)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:750;letter-spacing:.06em;margin-bottom:17px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    .hero h1{font-size:clamp(35px,5vw,57px);line-height:1.2;letter-spacing:-.045em;margin-bottom:21px;max-width:690px}
    .hero h1 em{font-style:normal;color:var(--lime)}
    .hero-copy{max-width:650px;color:var(--muted);font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 28px}
    .breadcrumb{padding:22px 0 0;color:var(--muted);font-size:13px}
    .breadcrumb a{color:var(--aqua)}
    .hero-card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:27px;box-shadow:var(--shadow)}
    .card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}
    .mini-label{font-size:12px;color:var(--muted)}
    .status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px}
    .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .install-preview{background:#17131f;border-radius:15px;padding:22px}
    .preview-title{font-weight:750;margin-bottom:18px}
    .progress-line{height:8px;background:#3d304d;border-radius:9px;overflow:hidden;margin:10px 0 20px}
    .progress-line span{display:block;width:68%;height:100%;background:var(--lime)}
    .preview-step{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line)}
    .preview-step:last-child{border-bottom:0}
    .number{flex:none;width:27px;height:27px;border-radius:8px;background:var(--orange);color:var(--ink);display:grid;place-items:center;font-weight:800;font-size:13px}
    .preview-step b{display:block;font-size:14px}
    .preview-step small{color:var(--muted);font-size:12px}
    .section{padding:86px 0}
    .section-light{background:var(--cream);color:var(--ink-2)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:36px}
    .section-kicker{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:8px}
    .section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.035em;margin-bottom:0}
    .section-intro{max-width:520px;color:var(--muted-light);font-size:15px}
    .topic-nav{display:flex;gap:10px;overflow:auto;padding-bottom:4px;margin-bottom:46px}
    .topic-nav a{flex:none;border:1px solid var(--line-light);color:var(--muted-light);padding:9px 15px;border-radius:9px;font-size:13px;transition:var(--ease)}
    .topic-nav a:hover,.topic-nav a.active{background:var(--ink-2);border-color:var(--ink-2);color:var(--lime)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
    .step{padding:29px 25px 30px;border-right:1px solid var(--line-light);position:relative}
    .step:last-child{border-right:0}
    .step-no{color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em}
    .step-icon{width:43px;height:43px;border-radius:13px;background:var(--ink-2);color:var(--lime);display:grid;place-items:center;font-weight:800;font-size:18px;margin:18px 0 17px}
    .step h3{font-size:19px;margin-bottom:8px}
    .step p{color:var(--muted-light);font-size:14px;margin-bottom:0}
    .guide-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:28px;align-items:start}
    .guide-panel{background:#fff;border:1px solid var(--line-light);border-radius:18px;padding:28px}
    .guide-panel h3{font-size:23px;margin-bottom:22px}
    .guide-row{display:grid;grid-template-columns:45px 1fr;gap:16px;padding:19px 0;border-bottom:1px solid var(--line-light)}
    .guide-row:last-child{border-bottom:0;padding-bottom:0}
    .guide-row:first-of-type{padding-top:0}
    .guide-no{width:36px;height:36px;border-radius:10px;background:var(--lime);display:grid;place-items:center;color:var(--ink);font-weight:800}
    .guide-row h4{font-size:16px;margin:0 0 5px}
    .guide-row p{font-size:14px;color:var(--muted-light);margin:0}
    .notice-box{background:var(--ink-2);color:var(--white);border-radius:18px;padding:27px}
    .notice-box h3{font-size:21px;margin-bottom:13px}
    .notice-box p{color:var(--muted);font-size:14px}
    .check-list{list-style:none;margin:21px 0 0;padding:0}
    .check-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--line)}
    .check-list li:last-child{border-bottom:0}
    .check-list b{color:var(--lime);font-size:17px}
    .check-list span{font-size:14px;color:var(--muted)}
    .trouble{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .trouble-card{background:var(--panel);border-radius:16px;padding:24px;border:1px solid var(--line);transition:var(--ease)}
    .trouble-card:hover{transform:translateY(-4px);border-color:var(--aqua);box-shadow:var(--shadow)}
    .trouble-card .tag{display:inline-block;border:0;background:rgba(255,154,92,.14);color:var(--orange);padding:4px 9px;border-radius:7px;font-size:12px;margin-bottom:14px}
    .trouble-card h3{font-size:18px;margin-bottom:8px}
    .trouble-card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .faq{background:#e9e3d9;color:var(--ink-2)}
    .faq-list{max-width:850px;margin:auto;border-top:1px solid #cfc7bd}
    details{border-bottom:1px solid #cfc7bd;padding:0}
    summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:21px 0;font-weight:750;font-size:17px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:23px;font-weight:400;color:#b35f36;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted-light);font-size:14px;padding:0 45px 20px 0;margin:0}
    .cta{background:var(--orange);color:var(--ink);padding:53px 0}
    .cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:clamp(25px,3vw,34px);margin-bottom:7px}
    .cta p{margin-bottom:0;color:#4d2630;font-size:14px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .cta .btn-primary{background:var(--ink);color:var(--white)}
    .cta .btn-secondary{border-color:var(--ink);color:var(--ink)}
    footer{background:#100d16;padding:55px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:35px}
    .footer-brand strong{font-size:18px}
    .footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:12px}
    .footer-col h4{font-size:14px;margin-bottom:14px;color:var(--white)}
    .footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:var(--ease)}
    .footer-col a:hover{color:var(--lime);padding-left:3px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:18px;color:#81788b;font-size:12px}
    @media(max-width:1100px){
        .nav{gap:0}.nav a{padding-left:7px;padding-right:7px;font-size:12px}.nav-actions{display:none}
        .hero-grid{gap:40px}.container{width:min(100% - 32px,1180px)}
    }
    @media(max-width:800px){
        .nav{display:none}.menu-btn{display:block}.logo{min-width:0}.nav-wrap{min-height:72px}
        .hero{padding:54px 0 62px}.hero-grid,.guide-grid{grid-template-columns:1fr;gap:34px}
        .steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line-light)}
        .trouble{grid-template-columns:1fr}
        .section{padding:65px 0}.section-head{display:block}.section-intro{margin-top:15px}
        .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
        .cta-wrap{display:block}.cta-actions{margin-top:22px}
    }
    @media(max-width:520px){
        .container{width:calc(100% - 40px)}.announcement .container{white-space:nowrap;overflow:hidden}
        .announcement span:last-child{display:none}.logo strong{font-size:14px}.logo small{font-size:10px}
        .hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
        .steps{display:block}.step{border-right:0!important;border-bottom:1px solid var(--line-light)!important;padding:24px 0}
        .step:last-child{border-bottom:0!important}.guide-panel,.notice-box{padding:22px}
        .topic-nav{margin-bottom:32px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
        .footer-grid{gap:24px 18px}.footer-col h4{font-size:13px}.footer-col a{font-size:12px}
    }

/* roulang page: category4 */
:root{--ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;--lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;--muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);--line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);--ease:all .25s ease}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font:inherit;border:0;cursor:pointer}.container{width:min(1180px,calc(100% - 40px));margin:auto}
    .announcement{background:#100d17;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line)}.announcement .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}.announcement strong{color:var(--lime);font-weight:700}.announcement a{color:var(--aqua)}
    .header{background:var(--ink);position:relative;z-index:5}.nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{display:flex;align-items:center;gap:12px;min-width:245px}.logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg)}.logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}.logo-mark:before{width:7px;height:7px;top:6px;right:4px}.logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}.logo strong{display:block;font-size:16px}.logo small{display:block;color:var(--muted);font-size:11px;margin-top:1px}
    .nav{display:flex;align-items:center;gap:2px}.nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}.nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}.nav-actions{display:flex;gap:9px;white-space:nowrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}.btn-primary{background:var(--lime);color:var(--ink)}.btn-primary:hover{background:#dcff78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}.btn-outline,.btn-secondary{border:1px solid var(--line);color:var(--white);background:transparent}.btn-outline:hover,.btn-secondary:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}.btn:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.menu-btn{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:21px}
    .category-hero{background:var(--ink-2);position:relative;overflow:hidden;padding:82px 0 78px}.category-hero:before{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(121,215,208,.18);border-radius:50%;right:-150px;top:-180px}.category-hero:after{content:"";position:absolute;width:7px;height:7px;background:var(--orange);border-radius:50%;right:22%;top:28%;box-shadow:-150px 92px 0 2px rgba(200,240,90,.6),-280px -48px 0 1px rgba(121,215,208,.6)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr .82fr;gap:70px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:17px}.eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:0 0 22px;max-width:700px}h1 em{font-style:normal;color:var(--lime)}.hero-copy{color:var(--muted);font-size:17px;line-height:1.9;max-width:640px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.update-panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:18px}.panel-top b{font-size:18px}.status{color:var(--lime);font-size:12px}.update-line{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.update-line:last-child{border-bottom:0}.update-dot{width:10px;height:10px;background:var(--orange);border-radius:50%;margin-top:8px;flex:none}.update-line h3{font-size:16px;margin:0 0 3px}.update-line p{color:var(--muted);font-size:13px;margin:0}.section{padding:86px 0}.section-light{background:var(--cream);color:var(--ink-2)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}.section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em;margin:0}.section-intro{color:var(--muted-light);max-width:530px}.topic-nav{display:flex;gap:10px;overflow:auto;padding-bottom:8px;margin-bottom:42px}.topic-nav a{white-space:nowrap;border:1px solid var(--line-light);border-radius:9px;padding:9px 15px;color:var(--muted-light);font-size:13px;transition:var(--ease)}.topic-nav a:hover,.topic-nav a.active{background:var(--ink-2);color:var(--lime);border-color:var(--ink-2)}
    .timeline{display:grid;grid-template-columns:1fr 1fr;gap:20px}.timeline-card{background:#fff;border:1px solid var(--line-light);border-radius:18px;padding:27px 28px;transition:var(--ease);position:relative}.timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.timeline-card.featured{grid-column:span 2;border-left:5px solid var(--orange);padding-left:30px}.meta{display:flex;gap:12px;align-items:center;color:var(--muted-light);font-size:12px}.badge{display:inline-flex;padding:4px 9px;border-radius:7px;background:#ffe4d4;color:#9b4d28;font-weight:700}.timeline-card h3{font-size:21px;line-height:1.45;margin:15px 0 8px}.timeline-card p{color:var(--muted-light);font-size:14px;margin:0 0 16px}.read-link{color:#85751d;font-weight:700;font-size:13px}.timeline-card:not(.featured) h3{font-size:17px}.timeline-card:not(.featured) p{font-size:13px}
    .notice{background:#21192d}.notice-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}.notice h2{font-size:34px;line-height:1.35;margin:0 0 14px}.notice p{color:var(--muted)}.notice-list{border:1px solid var(--line);border-radius:18px;background:var(--panel)}.notice-row{display:flex;gap:17px;padding:21px 24px;border-bottom:1px solid var(--line)}.notice-row:last-child{border:0}.number{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--lime);color:var(--ink);font-weight:800;flex:none}.notice-row h3{font-size:16px;margin:0 0 3px}.notice-row p{font-size:13px;margin:0}
    .faq{background:#e9e3d9;color:var(--ink-2)}.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}.faq-copy p{color:var(--muted-light)}.faq-list details{border-top:1px solid #cfc7bb;padding:18px 0}.faq-list details:last-child{border-bottom:1px solid #cfc7bb}.faq-list summary{cursor:pointer;font-weight:700;list-style:none;padding-right:30px;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";position:absolute;right:0;color:#9b4d28;font-size:20px;top:-4px}.faq-list details[open] summary:after{content:"－"}.faq-list p{color:var(--muted-light);font-size:14px;margin:12px 0 0}
    .cta{background:var(--lime);color:var(--ink);padding:54px 0}.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:30px;margin:0 0 5px}.cta p{margin:0;color:#48521d}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}.cta .btn-primary{background:var(--ink);color:var(--white)}.cta .btn-outline{border-color:rgba(23,19,31,.35);color:var(--ink)}
    footer{background:#100d17;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px}.footer-brand strong{font-size:18px}.footer-brand p{color:var(--muted);font-size:13px;max-width:300px;margin-top:12px}.footer-col{display:flex;flex-direction:column;gap:8px}.footer-col h4{font-size:14px;color:var(--lime);margin:0 0 8px}.footer-col a{color:var(--muted);font-size:13px;transition:var(--ease)}.footer-col a:hover{color:var(--aqua);padding-left:3px}.copyright{border-top:1px solid var(--line);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#81788c;font-size:12px}
    @media(max-width:1100px){.nav{gap:0}.nav a{padding:8px 7px;font-size:12px}.logo{min-width:220px}.nav-actions{display:none}}
    @media(max-width:768px){.container{width:min(100% - 40px,600px)}.announcement .container{white-space:nowrap;overflow:hidden}.nav-wrap{min-height:72px}.nav{display:none;position:absolute;top:72px;left:0;right:0;padding:16px 20px 24px;background:var(--ink-2);flex-direction:column;align-items:stretch;box-shadow:0 18px 30px rgba(0,0,0,.2)}.nav.open{display:flex}.nav a{padding:13px 12px;font-size:14px;border-bottom:1px solid var(--line)}.nav-actions{display:flex;margin-left:auto}.nav-actions .btn-primary{display:none}.nav-actions .btn-secondary{font-size:12px;padding:0 12px}.menu-btn{display:block}.category-hero{padding:62px 0}.hero-grid,.notice-grid,.faq-grid{grid-template-columns:1fr;gap:35px}h1{font-size:38px}.hero-copy{font-size:15px}.section{padding:66px 0}.section-head{display:block}.section-intro{margin-top:12px}.timeline{grid-template-columns:1fr}.timeline-card.featured{grid-column:auto}.cta-wrap{display:block}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}}
    @media(max-width:520px){.logo{min-width:0}.logo strong{font-size:14px}.logo small{font-size:10px}.logo-mark{width:34px;height:34px}.nav-actions .btn-secondary{display:none}.hero-actions .btn{width:100%}.update-panel{padding:21px}.section h2,.notice h2{font-size:28px}.footer-grid{grid-template-columns:1fr}.copyright{margin-top:30px}.timeline-card{padding:22px}.cta h2{font-size:25px}}

/* roulang page: category2 */
:root{
            --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
            --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
            --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
            --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
            --ease:all .25s ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit;border:0;cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .announcement{height:38px;background:#100d16;color:var(--muted);font-size:13px;border-bottom:1px solid var(--line)}
        .announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
        .announcement strong{color:var(--lime);font-weight:700}
        .header{background:var(--ink);position:relative;z-index:5}
        .nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:22px}
        .logo{display:flex;align-items:center;gap:12px;min-width:235px}
        .logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg);flex:none}
        .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
        .logo-mark:before{width:7px;height:7px;top:6px;right:4px}
        .logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}
        .logo strong{display:block;font-size:16px;letter-spacing:.01em}
        .logo small{display:block;color:var(--muted);font-size:11px;line-height:1.3}
        .nav{display:flex;align-items:center;gap:2px}
        .nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
        .nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
        .nav-actions{display:flex;gap:8px;white-space:nowrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
        .btn-primary{background:var(--lime);color:var(--ink)}
        .btn-primary:hover{background:#dcff78;color:var(--ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(200,240,90,.2)}
        .btn-secondary{border:1px solid var(--line);color:var(--white);background:transparent}
        .btn-secondary:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
        .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .menu-btn{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:21px}
        .hero{position:relative;overflow:hidden;background:var(--ink-2);padding:76px 0 82px}
        .hero:before{content:"";position:absolute;width:510px;height:510px;border:1px solid rgba(121,215,208,.16);border-radius:50%;right:-180px;top:-220px}
        .hero:after{content:"";position:absolute;width:7px;height:7px;background:var(--orange);border-radius:50%;right:19%;top:24%;box-shadow:-130px 90px 0 2px rgba(200,240,90,.55),-260px -50px 0 1px rgba(121,215,208,.6)}
        .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:17px}
        .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
        h1,h2,h3,p{margin-top:0}
        .hero h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin-bottom:22px;max-width:680px}
        .hero h1 em{font-style:normal;color:var(--lime)}
        .hero-copy{color:var(--muted);max-width:610px;font-size:17px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 29px}
        .trust-row{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}
        .trust-row span{display:flex;align-items:center;gap:7px}
        .trust-row b{color:var(--aqua);font-size:16px}
        .download-panel{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
        .panel-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:22px}
        .panel-brand{display:flex;align-items:center;gap:10px;font-weight:700}
        .panel-icon{width:30px;height:30px;border:2px solid var(--aqua);border-radius:9px}
        .status{font-size:12px;color:var(--lime);display:flex;align-items:center;gap:6px}
        .status:before{content:"";width:7px;height:7px;background:var(--lime);border-radius:50%}
        .phone-preview{background:#15111d;border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:18px;min-height:260px}
        .phone-head{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:25px}
        .preview-title{font-size:23px;font-weight:700;line-height:1.35;margin-bottom:20px}
        .preview-line{height:11px;background:#3a3049;border-radius:6px;margin:12px 0}
        .preview-line.short{width:62%}
        .preview-button{height:40px;background:var(--lime);border-radius:9px;margin-top:24px}
        .section{padding:90px 0}
        .section-light{background:var(--cream);color:var(--ink-2)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
        .section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}
        .section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em;margin-bottom:10px}
        .section-intro{color:var(--muted-light);max-width:540px}
        .path{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .path-item{position:relative;padding:28px 25px 27px;border-right:1px solid var(--line);transition:var(--ease)}
        .path-item:last-child{border-right:0}
        .path-item:hover{background:var(--panel);transform:translateY(-3px)}
        .path-num{color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.08em}
        .path-item h3{font-size:19px;margin:13px 0 6px}
        .path-item p{color:var(--muted);font-size:14px;margin-bottom:0}
        .path-item a{display:inline-block;color:var(--aqua);font-size:13px;margin-top:13px}
        .download-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:74px;align-items:center}
        .download-grid h2{max-width:490px}
        .download-grid p{color:var(--muted-light);max-width:550px}
        .download-meta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
        .tag{border:1px solid var(--line-light);padding:5px 10px;border-radius:8px;color:var(--muted-light);font-size:12px}
        .download-actions{display:flex;flex-wrap:wrap;gap:11px;margin:24px 0}
        .download-actions .btn-secondary{border-color:#b8b0a8;color:var(--ink-2)}
        .download-actions .btn-secondary:hover{border-color:var(--ink-2);color:var(--ink-2)}
        .device-stage{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center}
        .device{background:#17131f;border:8px solid #352b43;border-radius:28px;padding:14px;min-height:310px;box-shadow:0 18px 30px rgba(30,20,40,.16)}
        .device.main{min-height:370px;border-color:#493a55}
        .device-notch{width:42%;height:7px;border-radius:5px;background:#51445b;margin:0 auto 22px}
        .device-label{color:var(--aqua);font-size:12px;margin-bottom:18px}
        .device h3{font-size:20px;line-height:1.4;color:var(--white)}
        .device-card{height:58px;background:#2b2238;border-radius:10px;margin-top:15px}
        .device-card.highlight{background:var(--lime)}
        .install-box{margin-top:25px;background:#ebe5dc;border:1px solid var(--line-light);border-radius:14px;padding:18px 20px}
        .install-box strong{display:block;margin-bottom:5px}
        .install-box span{font-size:13px;color:var(--muted-light)}
        .guide{background:#21192d}
        .guide-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
        .guide-intro p{color:var(--muted);max-width:440px}
        .guide-list{border-top:1px solid var(--line)}
        .guide-row{display:grid;grid-template-columns:48px 1fr;gap:17px;padding:21px 0;border-bottom:1px solid var(--line)}
        .guide-row b{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--aqua);border-radius:10px;color:var(--aqua)}
        .guide-row h3{font-size:17px;margin-bottom:3px}
        .guide-row p{color:var(--muted);font-size:14px;margin-bottom:0}
        .notice{margin-top:28px;border-left:3px solid var(--orange);padding:13px 16px;background:rgba(255,154,92,.08);color:var(--muted);font-size:14px}
        .feature-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
        .feature-card,.check-card{border-radius:18px;padding:30px;background:#fff;border:1px solid var(--line-light)}
        .feature-card{border-left:5px solid var(--orange)}
        .feature-card h3{font-size:25px;line-height:1.4;margin:13px 0 10px}
        .feature-card p,.check-card li{color:var(--muted-light);font-size:14px}
        .feature-card a{color:#7551a0;font-weight:700}
        .check-card h3{font-size:19px;margin-bottom:15px}
        .check-card ul{list-style:none;padding:0;margin:0}
        .check-card li{padding:10px 0;border-bottom:1px solid var(--line-light)}
        .check-card li:last-child{border-bottom:0}
        .check-card li:before{content:"✓";color:#7b9b1b;font-weight:800;margin-right:9px}
        .faq{background:#e9e3d9;color:var(--ink-2)}
        .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
        .faq-intro p{color:var(--muted-light)}
        .faq-list details{border-top:1px solid #cfc7bd;padding:18px 0}
        .faq-list details:last-child{border-bottom:1px solid #cfc7bd}
        .faq-list summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";color:#a3643e;font-size:22px;line-height:1}
        .faq-list details[open] summary:after{content:"−"}
        .faq-list p{color:var(--muted-light);font-size:14px;padding:12px 34px 0 0;margin:0}
        .cta{padding:65px 0;background:var(--lime);color:var(--ink)}
        .cta-wrap{display:flex;justify-content:space-between;align-items:center;gap:28px}
        .cta h2{font-size:clamp(27px,4vw,39px);line-height:1.25;margin-bottom:9px}
        .cta p{margin:0;color:#4d542b}
        .cta .btn-primary{background:var(--ink);color:var(--white)}
        .cta .btn-primary:hover{background:#30263d}
        .cta .btn-secondary{border-color:rgba(23,19,31,.35);color:var(--ink)}
        footer{background:#100d16;padding:52px 0 20px;color:var(--muted)}
        .footer-grid{display:grid;grid-template-columns:1.35fr .8fr .95fr .8fr;gap:30px}
        .footer-brand strong{display:block;color:var(--white);font-size:18px;margin-bottom:10px}
        .footer-brand p{font-size:13px;max-width:280px}
        .footer-col h4{font-size:14px;color:var(--white);margin-bottom:13px}
        .footer-col a{display:block;font-size:13px;margin:8px 0;transition:var(--ease)}
        .footer-col a:hover{color:var(--lime);padding-left:3px}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:18px;font-size:12px}
        @media(max-width:1100px){
            .nav{gap:0}.nav a{padding:9px 6px;font-size:12px}.nav-actions{display:none}
            .hero-grid{gap:38px}.download-grid{gap:40px}
        }
        @media(max-width:820px){
            .nav{display:none}.nav-wrap{min-height:72px}.menu-btn{display:block;margin-left:auto}
            .nav.open{display:flex;position:absolute;top:72px;left:0;right:0;background:var(--ink-2);padding:15px 20px;flex-direction:column;align-items:stretch;border-top:1px solid var(--line);box-shadow:var(--shadow)}
            .nav.open a{padding:13px 10px;border-bottom:1px solid var(--line)}
            .hero-grid,.download-grid,.guide-grid,.faq-grid,.feature-strip{grid-template-columns:1fr}
            .hero{padding:65px 0}.device-stage{max-width:600px;margin:auto}
            .path{grid-template-columns:repeat(2,1fr)}.path-item:nth-child(2){border-right:0}.path-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .section{padding:68px 0}.section-head{display:block}
            .section-intro{margin-top:12px}.cta-wrap{display:block}.cta-actions{margin-top:22px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:520px){
            .container{width:min(100% - 32px,1180px)}
            .announcement{font-size:11px}.announcement .container span:last-child{display:none}
            .logo{min-width:0}.logo strong{font-size:14px}.logo small{font-size:10px}
            .hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
            .trust-row{gap:10px 15px}.download-panel{padding:20px}
            .path{grid-template-columns:1fr}.path-item{border-right:0!important;border-bottom:1px solid var(--line)}
            .path-item:last-child{border-bottom:0}.device-stage{grid-template-columns:1fr 1fr;gap:9px}.device{min-height:250px;padding:9px;border-width:5px}.device.main{min-height:290px}.device h3{font-size:16px}
            .feature-card,.check-card{padding:22px}.copyright{display:block}.copyright span{display:block;margin-top:5px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:25px 15px}
        }

/* roulang page: category6 */
:root{
        --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
        --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
        --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
        --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
        --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .announcement{height:38px;background:#100d16;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line)}
    .announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .announcement strong{color:var(--lime);font-weight:700}
    .header{background:var(--ink);position:relative;z-index:5}
    .nav-wrap{height:82px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{display:flex;align-items:center;gap:12px;min-width:244px}
    .logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg);flex:none}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
    .logo-mark:before{width:7px;height:7px;top:6px;right:4px}
    .logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}
    .logo strong{display:block;font-size:16px;letter-spacing:.1px}
    .logo small{display:block;color:var(--muted);font-size:11px;margin-top:1px}
    .nav{display:flex;align-items:center;gap:2px}
    .nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
    .nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
    .nav-actions{display:flex;gap:9px;white-space:nowrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
    .btn-primary{background:var(--lime);color:var(--ink)}
    .btn-primary:hover{background:#dcff78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}
    .btn-secondary{background:transparent;border:1px solid var(--line);color:var(--white)}
    .btn-secondary:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
    .btn:focus-visible,.menu-btn:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .menu-btn{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:21px}
    .page-hero{position:relative;overflow:hidden;background:var(--ink-2);padding:78px 0 76px}
    .page-hero:before{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(121,215,208,.16);border-radius:50%;right:-150px;top:-200px}
    .page-hero:after{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:var(--orange);right:21%;top:28%;box-shadow:-145px 105px 0 2px rgba(200,240,90,.55),-280px -50px 0 1px rgba(121,215,208,.65)}
    .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb a{color:var(--aqua)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:17px}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin-bottom:21px}
    h1 em{font-style:normal;color:var(--lime)}
    .hero-copy{color:var(--muted);font-size:17px;line-height:1.9;max-width:650px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .question-board{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
    .board-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:7px}
    .board-head strong{font-size:18px}
    .status{display:inline-flex;align-items:center;gap:7px;color:var(--lime);font-size:12px}
    .status:before{content:"";width:8px;height:8px;background:var(--lime);border-radius:50%}
    .board-item{display:flex;align-items:flex-start;gap:15px;padding:18px 0;border-bottom:1px solid var(--line)}
    .board-item:last-child{border-bottom:0;padding-bottom:2px}
    .board-num{width:29px;height:29px;display:grid;place-items:center;border-radius:9px;background:rgba(200,240,90,.12);color:var(--lime);font-weight:800;font-size:13px;flex:none}
    .board-item h3{font-size:15px;margin:0 0 3px}
    .board-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}
    .section{padding:88px 0}
    .section-light{background:var(--cream);color:var(--ink-2)}
    .section-dark-alt{background:#21192d}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}
    .section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}
    .section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em;margin-bottom:0}
    .section-intro{color:var(--muted-light);max-width:530px;margin-bottom:0}
    .topic-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line-light);background:#fff;border-radius:18px;overflow:hidden}
    .topic-strip a{padding:25px 22px;border-right:1px solid var(--line-light);transition:var(--ease);color:var(--ink-2)}
    .topic-strip a:last-child{border-right:0}
    .topic-strip a:hover,.topic-strip a.active{background:#eee8df}
    .topic-strip .num{display:block;color:var(--orange);font-size:12px;font-weight:800;margin-bottom:9px}
    .topic-strip strong{display:block;font-size:16px;margin-bottom:5px}
    .topic-strip span:last-child{font-size:13px;color:var(--muted-light)}
    .faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:70px;align-items:start}
    .faq-intro p{color:var(--muted);max-width:420px;margin-top:20px}
    .faq-note{border-left:3px solid var(--orange);padding:15px 18px;background:rgba(255,154,92,.08);color:var(--muted);font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:21px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;background:none;color:var(--white);text-align:left;font-weight:700;font-size:16px}
    .faq-question span:last-child{color:var(--lime);font-size:22px;line-height:1;transition:var(--ease)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;line-height:1.85;padding:0 40px 21px 0}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .help-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .help-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px;transition:var(--ease)}
    .help-card:hover{transform:translateY(-4px);border-color:rgba(200,240,90,.55);box-shadow:var(--shadow)}
    .help-icon{width:39px;height:39px;display:grid;place-items:center;background:rgba(121,215,208,.12);color:var(--aqua);border-radius:11px;font-weight:800;margin-bottom:20px}
    .help-card h3{font-size:19px;margin-bottom:8px}
    .help-card p{font-size:14px;color:var(--muted);margin-bottom:17px}
    .text-link{color:var(--aqua);font-size:13px;font-weight:700}
    .text-link:hover{color:var(--lime)}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 28px 28px 0;border-right:1px solid var(--line);margin-right:28px}
    .step:last-child{border-right:0;margin-right:0}
    .step b{display:block;color:var(--lime);font-size:12px;letter-spacing:.1em;margin-bottom:12px}
    .step h3{font-size:19px;margin-bottom:8px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .cta{background:var(--lime);color:var(--ink);padding:58px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{font-size:clamp(26px,3vw,36px);margin-bottom:8px;letter-spacing:-.03em}
    .cta p{margin:0;color:#4b542d;font-size:14px}
    .cta-actions{display:flex;gap:10px;flex:none}
    .cta .btn-primary{background:var(--ink);color:var(--white)}
    .cta .btn-primary:hover{background:var(--ink-2)}
    .cta .btn-secondary{border-color:rgba(23,19,31,.35);color:var(--ink)}
    footer{background:#100d16;color:var(--white);padding:58px 0 0}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:38px;padding-bottom:46px}
    .footer-brand strong{font-size:19px}
    .footer-brand p{color:var(--muted);font-size:13px;max-width:300px;margin:14px 0 0}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h4{font-size:14px;color:var(--lime);margin:0 0 8px}
    .footer-col a{color:var(--muted);font-size:13px;transition:var(--ease)}
    .footer-col a:hover{color:var(--aqua);padding-left:3px}
    .copyright{border-top:1px solid var(--line);padding:19px 0;display:flex;justify-content:space-between;gap:20px;color:#887f91;font-size:12px}
    @media(max-width:1100px){
        .nav{gap:0}.nav a{padding-left:7px;padding-right:7px;font-size:12px}.nav-actions{display:none}
        .hero-layout{gap:42px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr}
    }
    @media(max-width:800px){
        .nav{display:none}.menu-btn{display:block}
        .nav-wrap{height:74px}.logo{min-width:0}.logo strong{font-size:14px}
        .nav-wrap.menu-open{height:auto;flex-wrap:wrap;padding-top:15px;padding-bottom:15px}
        .nav-wrap.menu-open .nav{display:flex;order:4;width:100%;flex-direction:column;align-items:stretch;padding-top:12px;border-top:1px solid var(--line)}
        .nav-wrap.menu-open .nav a{padding:12px 4px}
        .hero-layout,.faq-layout{grid-template-columns:1fr;gap:38px}
        .page-hero{padding:55px 0 60px}.section{padding:68px 0}
        .topic-strip{grid-template-columns:1fr 1fr}
        .topic-strip a:nth-child(2){border-right:0}.topic-strip a:nth-child(-n+2){border-bottom:1px solid var(--line-light)}
        .help-grid{grid-template-columns:1fr}
        .steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:24px 0}
        .step:last-child{border-bottom:0}
        .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    }
    @media(max-width:520px){
        .container{width:min(100% - 32px,1180px)}
        .announcement .container{white-space:nowrap;overflow:hidden}.announcement span:last-child{display:none}
        .logo small{font-size:10px}.logo-mark{width:34px;height:34px}
        h1{font-size:35px}.hero-copy{font-size:15px}
        .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}.hero-actions .btn,.cta-actions .btn{width:100%}
        .topic-strip{grid-template-columns:1fr}.topic-strip a{border-right:0!important;border-bottom:1px solid var(--line-light)!important}
        .topic-strip a:last-child{border-bottom:0!important}
        .section-head{display:block}.section-intro{margin-top:16px}
        .question-board{padding:21px}.faq-question{font-size:15px}
        .cta-inner{display:block}.cta-actions{margin-top:24px}
        .footer-grid{grid-template-columns:1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }

/* roulang page: category5 */
:root{
 --ink:#17131f;--ink-2:#241d31;--panel:#2b2238;--cream:#f4f1ea;
 --lime:#c8f05a;--orange:#ff9a5c;--aqua:#79d7d0;--white:#fff9f0;
 --muted:#bdb5c9;--muted-light:#6f6678;--line:rgba(255,255,255,.13);
 --line-light:#ded8d0;--radius:18px;--shadow:0 18px 45px rgba(20,12,30,.18);
 --ease:all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;cursor:pointer}
img{display:block;max-width:100%}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.announcement{background:#21192d;color:var(--muted);font-size:12px;border-bottom:1px solid var(--line)}
.announcement .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.announcement strong{color:var(--lime);font-weight:700}
.header{background:var(--ink);position:relative;z-index:5}
.nav-wrap{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:12px;min-width:235px}
.logo-mark{width:38px;height:38px;border:2px solid var(--lime);border-radius:12px;position:relative;transform:rotate(12deg)}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
.logo-mark:before{width:7px;height:7px;top:6px;right:4px}
.logo-mark:after{width:4px;height:4px;bottom:6px;left:7px}
.logo strong{display:block;font-size:16px}
.logo small{display:block;color:var(--muted);font-size:11px;margin-top:1px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:9px 10px;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;transition:var(--ease);white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--lime);border-color:var(--lime)}
.nav-actions{display:flex;gap:9px;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:#dcff78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,240,90,.18)}
.btn-secondary,.btn-outline{border:1px solid var(--line);color:var(--white);background:transparent}
.btn-secondary:hover,.btn-outline:hover{border-color:var(--aqua);color:var(--aqua);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.menu-btn{display:none;background:var(--panel);color:var(--white);width:44px;height:44px;border-radius:10px;font-size:21px}
.page-hero{padding:72px 0 76px;background:var(--ink-2);position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(121,215,208,.16);border-radius:50%;right:-130px;top:-190px}
.page-hero:after{content:"";position:absolute;width:7px;height:7px;border-radius:50%;background:var(--orange);right:22%;top:28%;box-shadow:-130px 80px 0 1px var(--lime),-245px -42px 0 1px var(--aqua)}
.hero-content{position:relative;z-index:1;max-width:780px}
.breadcrumb{color:var(--muted);font-size:13px;margin-bottom:25px}
.breadcrumb a{color:var(--aqua)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--lime)}
h1,h2,h3,h4,p{margin-top:0}
h1{font-size:clamp(36px,5vw,58px);line-height:1.2;letter-spacing:-.04em;margin-bottom:20px}
h1 em{font-style:normal;color:var(--lime)}
.hero-copy{max-width:710px;color:var(--muted);font-size:17px;line-height:1.9;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.section{padding:88px 0}
.section-light{background:var(--cream);color:var(--ink-2)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:35px}
.section-kicker{font-size:12px;color:var(--orange);font-weight:800;letter-spacing:.12em;margin-bottom:8px}
.section h2{font-size:clamp(28px,4vw,38px);line-height:1.25;letter-spacing:-.03em;margin-bottom:0}
.section-intro{color:var(--muted-light);max-width:520px}
.topic-nav{display:flex;gap:10px;overflow:auto;padding-bottom:8px;margin-bottom:35px}
.topic-nav a{border:1px solid var(--line);border-radius:9px;padding:9px 15px;color:var(--muted);font-size:13px;white-space:nowrap;transition:var(--ease)}
.topic-nav a:hover,.topic-nav a.active{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.help-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:start}
.help-intro,.issue-card,.status-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.help-intro h3{font-size:24px;margin-bottom:12px}
.help-intro p{color:var(--muted);font-size:15px}
.issue-list{display:grid;gap:12px}
.issue-card{display:grid;grid-template-columns:48px 1fr;gap:18px;transition:var(--ease)}
.issue-card:hover{transform:translateY(-3px);border-color:rgba(200,240,90,.45);box-shadow:var(--shadow)}
.issue-number{width:42px;height:42px;border-radius:12px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:800}
.issue-card h3{font-size:18px;margin-bottom:5px}
.issue-card p{color:var(--muted);font-size:14px;margin-bottom:0}
.status-section{background:#21192d}
.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.status-panel h3{font-size:22px;margin-bottom:18px}
.status-line{display:flex;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
.status-line:last-child{border-bottom:0}
.status-dot{width:9px;height:9px;background:var(--lime);border-radius:50%;margin-top:9px;flex:none}
.status-dot.warn{background:var(--orange)}
.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-light);border-bottom:1px solid var(--line-light)}
.step{padding:25px 22px;border-right:1px solid var(--line-light)}
.step:last-child{border-right:0}
.step b{display:block;color:var(--orange);font-size:13px;margin-bottom:8px}
.step h3{font-size:18px;color:var(--ink-2);margin-bottom:7px}
.step p{color:var(--muted-light);font-size:14px;margin-bottom:0}
.faq{background:#e9e3d9;color:var(--ink-2)}
.faq-list{max-width:880px;margin:auto}
.faq-item{border-top:1px solid #cfc7bc}
.faq-item:last-child{border-bottom:1px solid #cfc7bc}
.faq-question{width:100%;background:transparent;color:var(--ink-2);display:flex;justify-content:space-between;text-align:left;padding:21px 0;font-weight:700;font-size:17px}
.faq-question span:last-child{color:var(--orange);font-size:23px;line-height:1;transition:var(--ease)}
.faq-answer{display:none;color:var(--muted-light);font-size:15px;padding:0 40px 21px 0}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta{padding:72px 0;background:var(--lime);color:var(--ink)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:clamp(26px,4vw,38px);margin-bottom:8px}
.cta p{margin-bottom:0;color:#4f5a26}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta .btn-primary{background:var(--ink);color:var(--white)}
.cta .btn-outline{border-color:var(--ink);color:var(--ink)}
footer{background:var(--ink);padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:38px}
.footer-brand strong{font-size:19px}
.footer-brand p{color:var(--muted);font-size:14px;max-width:290px;margin-top:12px}
.footer-col{display:flex;flex-direction:column;gap:8px}
.footer-col h4{font-size:14px;color:var(--lime);margin-bottom:8px}
.footer-col a{font-size:13px;color:var(--muted);transition:var(--ease)}
.footer-col a:hover{color:var(--aqua);padding-left:3px}
.copyright{border-top:1px solid var(--line);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#81788d;font-size:12px}
@media(max-width:1100px){
 .nav{gap:0}.nav a{padding:9px 7px;font-size:12px}.nav-actions{display:none}
}
@media(max-width:820px){
 .nav-wrap{height:72px}.nav{display:none}.menu-btn{display:block}
 .logo{min-width:0}.page-hero{padding:58px 0}.help-grid,.status-grid{grid-template-columns:1fr}
 .step-track{grid-template-columns:repeat(2,1fr)}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line-light)}
 .footer-grid{grid-template-columns:1fr 1fr}.copyright{flex-direction:column;gap:5px}
}
@media(max-width:520px){
 .container{width:min(100% - 32px,1180px)}
 .announcement .container{height:40px;white-space:nowrap;overflow:hidden}
 h1{font-size:35px}.hero-copy{font-size:15px}.section{padding:62px 0}
 .section-head{display:block}.section-intro{margin-top:14px}.help-intro,.issue-card,.status-panel{padding:22px}
 .issue-card{grid-template-columns:38px 1fr;gap:13px}.issue-number{width:36px;height:36px}
 .step-track{display:block}.step{border-right:0;border-bottom:1px solid var(--line-light)!important;padding:21px}
 .step:last-child{border-bottom:0!important}.cta-inner{display:block}.cta-actions{margin-top:22px}
 .footer-grid{grid-template-columns:1fr}.copyright{margin-top:30px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}