/* roulang page: index */
:root{
  --ink:#251d35;--ink-2:#34284a;--lime:#c7e86b;--coral:#e58e6e;
  --paper:#f6f3ec;--card:#fff;--text:#24202b;--muted:#716b78;
  --line:#e5dfd5;--soft:#eee9df;--radius:18px;--shadow:0 16px 40px rgba(37,29,53,.09);
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;background:var(--paper);color:var(--text);line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,243,236,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,223,213,.8)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:230px;font-weight:800;color:var(--ink);font-size:19px;letter-spacing:-.04em}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--coral)}
.nav-links{display:flex;align-items:center;gap:6px;flex:1}
.nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink);background:#ebe6dc}
.nav-actions{display:flex;align-items:center;gap:10px}
.mobile-toggle{display:none;background:var(--ink);color:var(--lime);width:42px;height:42px;border-radius:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border-radius:10px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(37,29,53,.18)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#d6f37e}
.btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}
.btn-outline:hover{border-color:var(--ink);background:#fff}
main{overflow:hidden}
.section{padding:82px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
h1,h2,h3{color:var(--ink);line-height:1.2;letter-spacing:-.045em}
h1{font-size:clamp(42px,5vw,76px);max-width:720px}
h2{font-size:clamp(28px,3.5vw,45px)}
h3{font-size:20px}
.lead{color:var(--muted);font-size:17px;max-width:650px}
.section-head p{color:var(--muted);max-width:480px}
.hero{padding:82px 0 74px;background:var(--ink);color:#fff;position:relative}
.hero:after{content:"";position:absolute;right:-130px;top:-150px;width:560px;height:560px;border:1px solid rgba(199,232,107,.25);border-radius:50%;box-shadow:0 0 0 38px rgba(199,232,107,.05),0 0 0 78px rgba(199,232,107,.04)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center;position:relative;z-index:1}
.hero h1{color:#fff;margin:18px 0 22px}
.hero .lead{color:#d7d1dc;max-width:600px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero .eyebrow{color:var(--lime)}
.hero .eyebrow:before{background:var(--lime)}
.hero-visual{min-height:370px;position:relative}
.interface{position:absolute;right:8%;top:16px;width:min(410px,100%);padding:18px;border:1px solid rgba(255,255,255,.16);background:#302644;border-radius:24px;transform:rotate(3deg);box-shadow:22px 28px 0 rgba(199,232,107,.13)}
.interface-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;color:#fff;font-size:13px}
.dot{width:9px;height:9px;background:var(--lime);border-radius:50%;display:inline-block;margin-right:7px}
.interface-panel{background:#423456;border-radius:15px;padding:20px;margin-bottom:12px}
.interface-panel strong{display:block;font-size:25px;color:var(--lime);margin-top:8px}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.mini-card{height:72px;border-radius:12px;background:linear-gradient(135deg,#5d486e,#302644);border:1px solid rgba(255,255,255,.1);padding:11px;color:#fff;font-size:12px}
.mini-card i{display:block;width:20px;height:20px;border-radius:6px;background:var(--coral);margin-bottom:7px}
.trust-row{display:flex;gap:24px;margin-top:38px;color:#bdb6c8;font-size:13px}
.trust-row b{color:var(--lime);font-size:20px;margin-right:5px}
.split-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
.lounge-main,.game-card,.guide-item,.update-card,.safety-card,.scene-card,.download-box,.phone-card,.faq-item,.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
.lounge-main{padding:30px;min-height:270px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
.lounge-main:after{content:"J9";position:absolute;right:22px;bottom:-30px;font-size:170px;font-weight:900;color:rgba(199,232,107,.1)}
.lounge-main h3{color:#fff;font-size:30px;max-width:340px}
.lounge-main p{color:#c9c2d1;max-width:360px;margin:12px 0 24px}
.lounge-side{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.entry-card{padding:23px;border-radius:var(--radius);background:#ece8df;border:1px solid var(--line);min-height:126px}
.entry-card:nth-child(2){background:#dceba9}.entry-card h3{font-size:18px;margin-bottom:6px}.entry-card p{font-size:13px;color:var(--muted)}
.game-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:16px}
.game-card{padding:24px;min-height:205px;position:relative;overflow:hidden}
.game-card.featured{grid-row:span 2;background:#e6edc5}
.game-card:nth-child(3){background:#f0dfd8}
.game-card:hover,.article-card:hover,.safety-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.game-art{height:66px;width:66px;border-radius:18px;background:var(--ink);margin-bottom:22px;display:grid;place-items:center;color:var(--lime);font-weight:900;font-size:24px}
.game-card h3{margin-bottom:8px}.game-card p{color:var(--muted);font-size:14px;max-width:270px}
.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:17px}.tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:#eee9df;color:var(--muted);font-size:12px}.tag.lime{background:var(--lime);color:var(--ink)}.tag.coral{background:#f3d7cc;color:#73402e}
.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.guide-item{border:0;border-radius:0;background:transparent;padding:27px 24px 27px 0;border-right:1px solid var(--line);margin-right:24px}.guide-item:last-child{border:0;margin:0}.step-no{color:var(--coral);font-size:13px;font-weight:800}.guide-item h3{margin:12px 0 6px}.guide-item p{font-size:14px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}.featured-news{background:var(--coral);color:var(--ink);padding:30px;border-radius:var(--radius);min-height:310px}.featured-news h3{font-size:27px;margin:22px 0 12px}.featured-news p{color:#593c35}.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 24px}.news-item{display:flex;justify-content:space-between;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border-bottom:0}.news-item h3{font-size:17px;margin:5px 0}.news-item p{color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.news-date{font-size:12px;color:var(--muted);white-space:nowrap}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.update-card{padding:24px;border-top:4px solid var(--coral)}.update-card strong{font-size:25px;color:var(--ink)}.update-card h3{margin:7px 0}.update-card p{font-size:14px;color:var(--muted)}
.download{background:var(--ink);color:#fff;border-radius:24px;padding:42px;position:relative;overflow:hidden}.download-grid{display:grid;grid-template-columns:1fr .9fr;gap:40px;align-items:center;position:relative;z-index:1}.download h2{color:#fff;margin:15px 0}.download p{color:#cbc4d3}.download:after{content:"APP";position:absolute;right:4%;bottom:-45px;color:rgba(199,232,107,.08);font-size:180px;font-weight:900}.download-panel{display:flex;align-items:center;gap:22px;background:#332846;border:1px solid rgba(255,255,255,.13);padding:22px;border-radius:18px}.qr{width:106px;height:106px;background:repeating-linear-gradient(45deg,#fff 0 5px,#251d35 5px 10px);border:9px solid #fff;border-radius:8px;flex:none}.download-panel small{display:block;color:#bcb4c8;margin-top:8px}.phone-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}.phone-stack{height:300px;position:relative}.phone{position:absolute;width:145px;height:280px;border:7px solid var(--ink);border-radius:25px;background:#e4e8bf;padding:14px;box-shadow:0 12px 0 rgba(37,29,53,.1)}.phone:before{content:"";display:block;height:7px;width:45px;background:var(--ink);border-radius:8px;margin:0 auto 20px}.phone.one{left:12%;top:16px;transform:rotate(-9deg)}.phone.two{left:39%;top:0;background:#f0d2c4;z-index:2}.phone.three{left:66%;top:25px;background:#ddd4e8;transform:rotate(9deg)}.screen-line{height:13px;border-radius:5px;background:rgba(37,29,53,.18);margin:10px 0}.screen-block{height:70px;border-radius:12px;background:var(--ink);margin-top:18px}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:25px}.feature-list div{padding:17px;border-left:3px solid var(--lime);background:#fff;border-radius:0 12px 12px 0}.feature-list b{display:block;color:var(--ink)}.feature-list span{font-size:13px;color:var(--muted)}
.onboarding{background:#e6edc5;padding:42px;border-radius:var(--radius)}.onboarding-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px}.onboard{padding:20px;background:rgba(255,255,255,.62);border-radius:14px}.onboard b{font-size:25px;color:var(--coral)}.onboard h3{font-size:17px;margin:8px 0}.onboard p{font-size:13px;color:var(--muted)}
.safety-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.safety-card{padding:25px}.safety-icon{width:42px;height:42px;border-radius:12px;background:var(--lime);display:grid;place-items:center;color:var(--ink);font-weight:800;margin-bottom:18px}.safety-card p{color:var(--muted);font-size:14px;margin-top:8px}
.scenes{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}.scene-card{min-height:180px;padding:26px;display:flex;flex-direction:column;justify-content:end;background:var(--ink);color:#fff}.scene-card:nth-child(2){background:#d6e99a;color:var(--ink)}.scene-card:nth-child(3){background:#ead5ca;color:var(--ink)}.scene-card h3{color:inherit;margin-bottom:7px}.scene-card p{font-size:14px;opacity:.78}
.faq-list{max-width:850px;margin:auto}.faq-item{margin-bottom:10px;overflow:hidden}.faq-question{width:100%;background:#fff;text-align:left;padding:20px 24px;display:flex;justify-content:space-between;align-items:center;color:var(--ink);font-weight:700}.faq-question span{font-size:22px;color:var(--coral);transition:.2s}.faq-answer{max-height:0;overflow:hidden;padding:0 24px;color:var(--muted);font-size:14px;transition:.3s}.faq-item.open .faq-answer{max-height:100px;padding:0 24px 20px}.faq-item.open .faq-question span{transform:rotate(45deg)}
.closing{background:#f0dfd8;padding:44px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.closing p{color:var(--muted);max-width:700px;margin-top:10px;font-size:14px}
.site-footer{background:var(--ink);color:#fff;padding:58px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;padding-bottom:42px}.footer-brand p{color:#bdb5c8;max-width:300px;margin-top:16px;font-size:14px}.site-footer h3{color:#fff;font-size:15px;margin-bottom:14px}.site-footer a,.site-footer li{color:#bdb5c8;font-size:14px;display:block;margin:7px 0;transition:.2s}.site-footer a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#91889d;font-size:12px}.footer-note{margin-top:18px;color:#91889d;font-size:12px;max-width:760px}
.empty{padding:40px;text-align:center;color:var(--muted);background:#fff;border-radius:14px;border:1px dashed var(--line)}
@media(max-width:1024px){.nav-links a{padding:8px 7px}.brand{min-width:190px}.hero-grid{gap:30px}.game-grid{grid-template-columns:1fr 1fr}.game-card.featured{grid-row:auto}.footer-grid{grid-template-columns:1.2fr repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.navbar{height:68px}.mobile-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:12px}.nav-actions{display:none}.brand{font-size:16px;min-width:0}.brand-mark{width:34px;height:34px}.section{padding:58px 0}.hero{padding:62px 0}.hero-grid,.split-grid,.news-layout,.download-grid,.phone-layout{grid-template-columns:1fr}.hero-visual{min-height:300px}.interface{right:4%;width:90%}.section-head{display:block}.section-head p{margin-top:12px}.guide-grid{grid-template-columns:1fr 1fr}.guide-item{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 14px 22px 0}.guide-item:nth-child(odd){border-right:1px solid var(--line);margin-right:14px}.timeline,.safety-grid,.onboarding-grid{grid-template-columns:1fr 1fr}.scenes{grid-template-columns:1fr 1fr}.scene-card:first-child{grid-column:span 2}.download{padding:28px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:span 2}}
@media(max-width:520px){h1{font-size:40px}.hero-actions,.hero-actions .btn{width:100%}.trust-row{gap:12px;flex-wrap:wrap}.lounge-side,.game-grid,.timeline,.safety-grid,.onboarding-grid,.feature-list,.scenes{grid-template-columns:1fr}.scene-card:first-child{grid-column:auto}.guide-grid{grid-template-columns:1fr}.guide-item,.guide-item:nth-child(odd){border-right:0;margin:0}.news-item{display:block}.news-date{display:block;margin-top:8px}.download-panel{align-items:flex-start;flex-direction:column}.qr{width:120px;height:120px}.phone-stack{transform:scale(.84);transform-origin:left center;margin-bottom:-35px}.closing{display:block;padding:30px}.closing .btn{margin-top:20px;width:100%}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: category1 */
:root{
      --ink:#251d35;--ink-2:#34284a;--lime:#c7e86b;--coral:#e58e6e;
      --paper:#f6f3ec;--card:#fff;--text:#24202b;--muted:#716b78;
      --line:#e5dfd5;--soft:#eee9df;--radius:18px;
      --shadow:0 16px 40px rgba(37,29,53,.09);--max:1240px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,243,236,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,223,213,.85)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px;font-weight:800;color:var(--ink);font-size:19px;letter-spacing:-.04em}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--coral)}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink);background:#ebe6dc}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{display:none;background:var(--ink);color:var(--lime);width:42px;height:42px;border-radius:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border-radius:10px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(37,29,53,.18)}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#d6f37e}
    .btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    main{overflow:hidden}
    .section{padding:78px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{margin:8px 0 0;font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.04em}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    .tag{display:inline-flex;padding:4px 10px;border-radius:999px;background:#eee9df;color:var(--muted);font-size:12px}
    .tag.lime{background:var(--lime);color:var(--ink)}
    .tag.coral{background:#f3d7cc;color:#73402e}
    .category-hero{padding:68px 0;background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .category-hero:after{content:"J9";position:absolute;right:8%;bottom:-86px;color:rgba(199,232,107,.1);font-size:300px;font-weight:900;line-height:1}
    .category-hero .container{position:relative;z-index:1}
    .crumbs{display:flex;gap:9px;align-items:center;color:#bdb6c8;font-size:13px;margin-bottom:30px}
    .crumbs a:hover{color:var(--lime)}
    .hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .category-hero h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.06em;margin:15px 0 20px;color:#fff}
    .category-hero .lead{color:#d7d1dc;max-width:640px;font-size:17px}
    .hero-panel{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);padding:24px;border-radius:22px;box-shadow:0 20px 55px rgba(0,0,0,.18)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;color:#d7d1dc;font-size:13px}
    .panel-title{font-size:23px;font-weight:800;color:#fff;margin-bottom:18px}
    .panel-list{display:grid;gap:10px}
    .panel-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;border-radius:13px;background:rgba(255,255,255,.08)}
    .panel-item strong{font-size:15px;color:#fff}
    .panel-item small{display:block;color:#bdb6c8;font-size:12px}
    .panel-mark{width:34px;height:34px;border-radius:10px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900}
    .index-wrap{display:flex;flex-wrap:wrap;gap:10px}
    .index-link{padding:12px 17px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--muted);transition:.2s}
    .index-link:hover,.index-link.selected{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-2px)}
    .game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .game-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-height:245px;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:.25s}
    .game-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .game-card.featured{background:#e6edc5;grid-column:span 2}
    .game-card:nth-child(3){background:#f0dfd8}
    .game-card:nth-child(5){background:#ebe5f2}
    .game-icon{width:50px;height:50px;border-radius:15px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;margin-bottom:20px}
    .game-card h3{font-size:22px;margin:0 0 8px;letter-spacing:-.03em}
    .game-card p{color:var(--muted);font-size:14px;margin:0;max-width:360px}
    .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:22px}
    .text-link{font-size:14px;font-weight:800;color:var(--ink)}
    .text-link span{color:var(--coral);margin-left:5px}
    .focus-card{display:grid;grid-template-columns:1fr .9fr;gap:28px;align-items:stretch;background:var(--coral);border-radius:var(--radius);padding:34px;overflow:hidden}
    .focus-card h2{font-size:34px;line-height:1.2;margin:15px 0 12px;color:var(--ink)}
    .focus-card p{color:#593c35;max-width:580px}
    .focus-visual{min-height:210px;border-radius:16px;background:var(--ink);position:relative;overflow:hidden;padding:23px;color:#fff}
    .focus-visual:after{content:"J9";position:absolute;right:12px;bottom:-40px;font-size:160px;font-weight:900;color:rgba(199,232,107,.13)}
    .focus-visual h3{position:relative;z-index:1;color:#fff;margin:0 0 36px}
    .focus-bars{position:relative;z-index:1;display:flex;align-items:end;gap:10px;height:85px}
    .focus-bars i{display:block;width:24%;border-radius:7px 7px 0 0;background:var(--lime)}
    .focus-bars i:nth-child(1){height:48%}.focus-bars i:nth-child(2){height:75%}.focus-bars i:nth-child(3){height:60%}.focus-bars i:nth-child(4){height:88%}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 25px 28px 0;margin-right:25px;border-right:1px solid var(--line)}
    .step:last-child{border:0;margin:0}
    .step-number{color:var(--coral);font-size:13px;font-weight:900}
    .step h3{font-size:19px;margin:10px 0 7px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .updates{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .update-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--coral);border-radius:var(--radius);padding:24px}
    .update-card strong{font-size:25px;color:var(--ink)}
    .update-card h3{font-size:18px;margin:15px 0 8px}
    .update-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden}
    .faq-question{width:100%;background:transparent;padding:20px 22px;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--text);font-weight:800}
    .faq-question span:last-child{font-size:23px;color:var(--coral);transition:.2s}
    .faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .download-strip{background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .download-strip h2{color:#fff;margin:0 0 8px;font-size:28px}
    .download-strip p{color:#c9c2d1;margin:0}
    .site-footer{background:var(--ink);color:#fff;padding:65px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand p{color:#bdb6c8;max-width:310px;font-size:14px;margin-top:18px}
    .site-footer h3{font-size:15px;margin:5px 0 14px;color:var(--lime)}
    .site-footer a{display:block;color:#c9c2d1;font-size:13px;margin:9px 0}
    .site-footer a:hover{color:var(--lime)}
    .footer-note{color:#a8a0b4;font-size:12px;margin:22px 0}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;color:#91899d;font-size:12px}
    .footer-bottom a{display:inline;color:#c9c2d1;margin:0}
    @media(max-width:1024px){
      .navbar{gap:15px}.brand{min-width:205px;font-size:17px}
      .nav-links a{padding:8px 8px;font-size:13px}
      .hero-layout{gap:35px}.game-grid{grid-template-columns:repeat(2,1fr)}
      .game-card.featured{grid-column:span 2}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr);gap:20px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px;justify-content:space-between}.brand{min-width:0}
      .nav-links{display:none;position:absolute;top:70px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
      .nav-actions .btn{display:none}.mobile-toggle{display:block}
      .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:13px}
      .hero-layout,.focus-card{grid-template-columns:1fr}.category-hero{padding:48px 0 56px}
      .hero-panel{margin-top:10px}.game-grid{grid-template-columns:1fr}
      .game-card.featured{grid-column:auto}.steps{grid-template-columns:repeat(2,1fr)}
      .step:nth-child(2){border-right:0;margin-right:0}.step:nth-child(3){border-top:1px solid var(--line);padding-top:25px}
      .updates{grid-template-columns:1fr}.download-strip{display:block}.download-strip .btn{margin-top:22px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:span 2}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:480px){
      .brand{font-size:15px}.brand-mark{width:34px;height:34px}
      .category-hero h1{font-size:40px}.category-hero .lead{font-size:15px}
      .section-head h2{font-size:30px}.focus-card{padding:24px}.focus-card h2{font-size:28px}
      .steps{display:block}.step,.step:nth-child(2),.step:nth-child(3){border-right:0;border-bottom:1px solid var(--line);margin:0;padding:22px 0}
      .step:last-child{border-bottom:0}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .download-strip{padding:25px}.btn{min-height:46px}
    }

/* roulang page: article */
:root{
      --ink:#251d35;--ink-2:#34284a;--lime:#c7e86b;--coral:#e58e6e;
      --paper:#f6f3ec;--card:#fff;--text:#24202b;--muted:#716b78;
      --line:#e5dfd5;--soft:#eee9df;--radius:18px;
      --shadow:0 16px 40px rgba(37,29,53,.09);--max:1240px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--ink)}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.25;letter-spacing:-.035em}
    h1{font-size:clamp(32px,4vw,56px)}
    h2{font-size:clamp(26px,3vw,38px)}
    h3{font-size:20px}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(246,243,236,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,223,213,.8)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px;font-weight:800;color:var(--ink);font-size:19px;letter-spacing:-.04em}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--coral)}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink);background:#ebe6dc}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{display:none;background:var(--ink);color:var(--lime);width:42px;height:42px;border-radius:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border-radius:10px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(37,29,53,.18);color:#fff}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#d6f37e;color:var(--ink)}
    .btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    main{overflow:hidden}
    .article-hero{padding:70px 0 58px;background:var(--ink);color:#fff;position:relative}
    .article-hero:after{content:"J9";position:absolute;right:8%;bottom:-55px;color:rgba(199,232,107,.08);font-size:210px;font-weight:900;line-height:1}
    .article-hero-inner{position:relative;z-index:1;max-width:900px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.1em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
    .article-hero h1{color:#fff;margin:18px 0 20px;max-width:880px}
    .article-summary{max-width:760px;color:#d7d1dc;font-size:17px}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:28px;color:#bdb6c8;font-size:13px}
    .tag{display:inline-flex;padding:4px 10px;border-radius:999px;background:#eee9df;color:var(--muted);font-size:12px}
    .tag.lime{background:var(--lime);color:var(--ink)}
    .tag.coral{background:#f3d7cc;color:#73402e}
    .breadcrumb-bar{padding:18px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
    .breadcrumb-bar a:hover{color:var(--ink);text-decoration:underline}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:52px;align-items:start;padding:68px 0 82px}
    .article-content{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,58px);box-shadow:0 10px 30px rgba(37,29,53,.04);font-size:16px;line-height:1.95;overflow-wrap:anywhere}
    .article-content h2{margin:34px 0 15px;color:var(--ink)}
    .article-content h3{margin:27px 0 12px;color:var(--ink)}
    .article-content p{margin-bottom:20px}
    .article-content ul,.article-content ol{padding-left:25px;margin:16px 0 24px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:28px 0;padding:20px 24px;background:#eee9df;border-left:4px solid var(--coral);border-radius:0 12px 12px 0;color:#564d5d}
    .article-content img{width:auto;max-width:100%;border:1px solid var(--line);border-radius:14px;margin:28px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
    .article-content th,.article-content td{padding:12px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--soft);color:var(--ink)}
    .empty-state{text-align:center;padding:50px 20px;color:var(--muted)}
    .empty-state h2{color:var(--ink);font-size:25px}
    .article-aside{position:sticky;top:104px}
    .aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;margin-bottom:16px}
    .aside-card h3{font-size:17px;margin-bottom:16px}
    .aside-list{list-style:none;padding:0;margin:0}
    .aside-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
    .aside-list li:last-child{border:0}
    .aside-list a:hover{color:var(--ink)}
    .note-box{display:flex;gap:14px;align-items:flex-start;background:#e6edc5;border-radius:var(--radius);padding:23px;margin-top:28px}
    .note-icon{width:34px;height:34px;display:grid;place-items:center;background:var(--ink);color:var(--lime);border-radius:10px;font-weight:800;flex:0 0 auto}
    .note-box p{margin:0;font-size:14px;color:#4c5135}
    .article-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px;padding-top:26px;border-top:1px solid var(--line)}
    .support-strip{padding:0 0 82px}
    .support-inner{display:flex;justify-content:space-between;align-items:center;gap:25px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px 34px}
    .support-inner h2{font-size:25px;margin-bottom:7px;color:#fff}
    .support-inner p{margin:0;color:#c9c2d1;font-size:14px}
    .site-footer{background:var(--ink);color:#fff;padding:62px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
    .footer-brand p{color:#bdb6c8;font-size:13px;max-width:280px;margin-top:18px}
    .site-footer h3{font-size:15px;color:var(--lime);margin-bottom:15px}
    .site-footer a{display:block;color:#c9c2d1;font-size:13px;margin:8px 0;transition:.2s}
    .site-footer a:hover{color:var(--lime)}
    .footer-note{border-top:1px solid rgba(255,255,255,.12);margin:36px 0 18px;padding-top:20px;color:#aaa1b4;font-size:12px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;color:#aaa1b4;font-size:12px}
    .footer-bottom a{display:inline;color:#c9c2d1;margin:0}
    @media(max-width:1024px){
      .navbar{gap:14px}.brand{min-width:205px;font-size:17px}.nav-links a{padding:8px 8px}
      .article-layout{grid-template-columns:minmax(0,1fr) 235px;gap:28px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}
      .brand{min-width:0;font-size:16px}.brand-mark{width:34px;height:34px}
      .mobile-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-actions .btn-outline{display:none}
      .article-hero{padding:50px 0 45px}.article-hero h1{font-size:36px}
      .article-layout{display:block;padding:40px 0 55px}.article-aside{position:static;margin-top:22px}
      .support-strip{padding-bottom:55px}.support-inner{align-items:flex-start;flex-direction:column;padding:26px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:8px}
    }
    @media(max-width:480px){
      .article-hero h1{font-size:30px}.article-summary{font-size:15px}
      .article-content{padding:24px 20px;font-size:15px}.article-content table{display:block;overflow-x:auto}
      .article-actions .btn,.support-inner .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --ink:#251d35;
      --ink-2:#34284a;
      --lime:#c7e86b;
      --coral:#e58e6e;
      --paper:#f6f3ec;
      --card:#fff;
      --text:#24202b;
      --muted:#716b78;
      --line:#e5dfd5;
      --soft:#eee9df;
      --radius:18px;
      --shadow:0 16px 40px rgba(37,29,53,.09);
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--paper);
      color:var(--text);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      line-height:1.7;
      font-size:15px;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.25;letter-spacing:-.035em}
    h1{font-size:clamp(36px,5vw,66px)}
    h2{font-size:clamp(28px,3.2vw,42px)}
    h3{font-size:20px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(246,243,236,.95);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(229,223,213,.85);
    }
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{
      display:flex;align-items:center;gap:11px;min-width:230px;
      color:var(--ink);font-size:19px;font-weight:800;letter-spacing:-.04em;
    }
    .brand-mark{
      width:38px;height:38px;border-radius:12px;background:var(--ink);
      color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:17px;
      box-shadow:4px 4px 0 var(--coral);
    }
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{
      padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;
      transition:.2s ease;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--ink);background:#ebe6dc}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{
      display:none;background:var(--ink);color:var(--lime);
      width:42px;height:42px;border-radius:10px;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:0 19px;border-radius:10px;font-weight:700;font-size:14px;
      border:1px solid transparent;transition:.2s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible,
    input:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(37,29,53,.18)}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#d6f37e}
    .btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    main{overflow:hidden}
    .section{padding:82px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px
    }
    .section-head p{color:var(--muted);max-width:510px;margin-bottom:0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--coral);
      font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:15px;
    }
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    .breadcrumb{
      display:flex;gap:10px;align-items:center;flex-wrap:wrap;
      color:var(--muted);font-size:13px;margin-bottom:24px;
    }
    .breadcrumb a:hover{color:var(--ink)}
    .intro{
      background:var(--ink);color:#fff;padding:68px 0 72px;position:relative;isolation:isolate;
    }
    .intro:before{
      content:"";position:absolute;right:8%;top:12%;width:300px;height:300px;
      border:1px solid rgba(199,232,107,.3);border-radius:50%;
      box-shadow:0 0 0 28px rgba(199,232,107,.05),0 0 0 60px rgba(229,142,110,.05);
      z-index:-1;
    }
    .intro-grid{display:grid;grid-template-columns:1fr .72fr;gap:70px;align-items:center}
    .intro h1{color:#fff;margin-bottom:20px;max-width:720px}
    .intro .lead{color:#d7d1dc;max-width:680px;font-size:17px}
    .intro-panel{
      padding:25px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);
      background:rgba(255,255,255,.07);backdrop-filter:blur(8px);
    }
    .signal-row{display:flex;justify-content:space-between;align-items:center;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.13)}
    .signal-row:last-child{border-bottom:0}
    .signal-row span{color:#c9c2d1;font-size:13px}
    .signal-row strong{color:var(--lime);font-size:22px}
    .topic-strip{display:flex;gap:10px;flex-wrap:wrap}
    .topic{
      border:1px solid var(--line);background:#fff;padding:11px 17px;border-radius:10px;
      color:var(--muted);transition:.2s;
    }
    .topic:hover,.topic.current{background:var(--lime);border-color:var(--lime);color:var(--ink)}
    .news-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:22px;align-items:start}
    .news-list,.featured-card,.timeline,.guide-box,.search-box,.download-strip,.faq-item{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius)
    }
    .featured-card{padding:32px;background:var(--coral);min-height:330px;display:flex;flex-direction:column;justify-content:space-between}
    .featured-card h3{font-size:30px;max-width:550px;margin:18px 0 12px}
    .featured-card p{color:#593c35;max-width:560px}
    .news-list{padding:7px 25px}
    .news-item{
      display:flex;justify-content:space-between;gap:20px;align-items:flex-start;
      padding:21px 0;border-bottom:1px solid var(--line)
    }
    .news-item:last-child{border-bottom:0}
    .news-item h3{font-size:18px;margin:7px 0 5px}
    .news-item p{color:var(--muted);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .news-item time{color:var(--muted);font-size:12px;white-space:nowrap;padding-top:3px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:999px;background:var(--soft);color:var(--muted);font-size:12px}
    .tag.coral{background:#f3d7cc;color:#73402e}
    .tag.lime{background:var(--lime);color:var(--ink)}
    .timeline{padding:26px}
    .timeline-item{position:relative;padding:0 0 24px 25px;border-left:2px solid var(--line)}
    .timeline-item:last-child{padding-bottom:0;border-left-color:transparent}
    .timeline-item:before{
      content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;
      background:var(--coral);border:3px solid var(--paper);border-radius:50%;
    }
    .timeline-item strong{display:block;color:var(--ink);font-size:17px;margin-bottom:5px}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0}
    .guide-box{padding:30px}
    .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .guide-step{padding:12px 24px 12px 0;border-right:1px solid var(--line);margin-right:24px}
    .guide-step:last-child{border-right:0;margin-right:0}
    .step-no{color:var(--coral);font-size:13px;font-weight:800}
    .guide-step h3{margin:11px 0 7px}
    .guide-step p{color:var(--muted);font-size:14px;margin:0}
    .search-layout{display:grid;grid-template-columns:1fr .8fr;gap:22px}
    .search-box{padding:30px}
    .search-box label{display:block;font-weight:700;margin-bottom:10px}
    .search-line{display:flex;gap:10px}
    .search-line input{
      min-width:0;flex:1;border:1px solid var(--line);background:var(--paper);
      border-radius:10px;padding:0 15px;height:48px;color:var(--text)
    }
    .search-note{padding:30px;border-radius:var(--radius);background:#e6edc5}
    .search-note h3{font-size:24px}
    .search-note p{color:#5e6541;margin-bottom:0}
    .app-strip{
      padding:36px 40px;background:var(--ink);color:#fff;border-radius:var(--radius);
      display:flex;align-items:center;justify-content:space-between;gap:25px
    }
    .app-strip h2{font-size:28px;margin-bottom:8px}
    .app-strip p{color:#c9c2d1;margin:0}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;background:#fff;color:var(--text);text-align:left;padding:21px 24px;
      display:flex;justify-content:space-between;align-items:center;font-weight:700;
    }
    .faq-question span:last-child{color:var(--coral);font-size:23px;line-height:1}
    .faq-answer{padding:0 24px 22px;color:var(--muted);font-size:14px}
    .site-footer{background:var(--ink);color:#fff;padding:65px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#c9c2d1;max-width:310px;font-size:14px;margin-top:18px}
    .site-footer h3{font-size:15px;color:var(--lime);margin-bottom:16px}
    .site-footer .footer-grid a:not(.brand){display:block;color:#c9c2d1;font-size:14px;margin:8px 0;transition:.2s}
    .site-footer .footer-grid a:not(.brand):hover{color:var(--lime)}
    .footer-note{
      color:#aaa2b4;border-top:1px solid rgba(255,255,255,.12);
      margin:42px 0 19px;padding-top:20px;font-size:13px
    }
    .footer-bottom{
      display:flex;justify-content:space-between;gap:20px;color:#aaa2b4;
      border-top:1px solid rgba(255,255,255,.12);padding-top:19px;font-size:12px
    }
    .footer-bottom a:hover{color:var(--lime)}
    @media (max-width:1024px){
      .navbar{gap:15px}.brand{min-width:205px;font-size:17px}
      .nav-links a{padding:8px 7px;font-size:13px}
      .intro-grid,.news-layout,.search-layout{gap:28px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media (max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px;justify-content:space-between}
      .mobile-toggle{display:block}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:78px;
        padding:12px;background:var(--card);border:1px solid var(--line);
        border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch
      }
      .nav-links.is-open{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-actions .btn-outline{display:none}
      .brand{min-width:0;font-size:16px}
      .brand-mark{width:34px;height:34px}
      .intro{padding:52px 0}
      .intro-grid,.news-layout,.search-layout{grid-template-columns:1fr}
      .intro-panel{max-width:520px}
      .section{padding:58px 0}
      .section-head{display:block;margin-bottom:22px}
      .section-head p{margin-top:12px}
      .guide-grid{grid-template-columns:1fr 1fr;gap:20px}
      .guide-step{border-right:0;margin-right:0;padding:15px 15px 15px 0}
      .faq-list{grid-template-columns:1fr}
      .app-strip{display:block;padding:30px}
      .app-strip .btn{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-grid>div:last-child{grid-column:auto}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      h1{font-size:38px}
      h2{font-size:29px}
      .container{width:calc(100% - 28px)}
      .nav-actions .btn-lime{padding:0 12px;min-height:42px;font-size:13px}
      .intro h1{font-size:37px}
      .intro-panel{padding:18px}
      .featured-card{min-height:285px;padding:25px}
      .featured-card h3{font-size:25px}
      .news-list{padding:5px 17px}
      .news-item{display:block;padding:18px 0}
      .news-item time{display:block;margin-top:8px}
      .guide-grid{grid-template-columns:1fr}
      .guide-step{border-bottom:1px solid var(--line);padding:17px 0}
      .guide-step:last-child{border-bottom:0}
      .search-line{display:block}
      .search-line .btn{width:100%;margin-top:10px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
      .site-footer{padding-top:48px}
    }

/* roulang page: category3 */
:root{
      --ink:#251d35;--ink-2:#34284a;--lime:#c7e86b;--coral:#e58e6e;
      --paper:#f6f3ec;--card:#fff;--text:#24202b;--muted:#716b78;
      --line:#e5dfd5;--soft:#eee9df;--radius:18px;
      --shadow:0 16px 40px rgba(37,29,53,.09);--max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;line-height:1.7}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.15;letter-spacing:-.055em}
    h2{font-size:clamp(28px,3.3vw,42px);line-height:1.25;letter-spacing:-.04em}
    h3{font-size:20px;line-height:1.35}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(246,243,236,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,223,213,.85)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:230px;font-weight:800;color:var(--ink);font-size:19px;letter-spacing:-.04em}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--coral)}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1}
    .nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink);background:#ebe6dc}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{display:none;background:var(--ink);color:var(--lime);width:42px;height:42px;border-radius:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border-radius:10px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .btn-primary{background:var(--ink);color:#fff}
    .btn-primary:hover{background:var(--ink-2);box-shadow:0 8px 20px rgba(37,29,53,.18)}
    .btn-lime{background:var(--lime);color:var(--ink)}
    .btn-lime:hover{background:#d6f37e}
    .btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}
    .btn-outline:hover{border-color:var(--ink);background:#fff}
    main{overflow:hidden}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head p{color:var(--muted);max-width:510px;margin-bottom:0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    .lead{color:var(--muted);font-size:17px;max-width:680px}
    .crumbs{font-size:13px;color:#a19a9e;margin-bottom:25px}
    .crumbs a:hover{color:var(--ink)}
    .page-intro{padding:62px 0 48px;background:#e9e4da}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
    .intro-grid h1{margin:15px 0 20px}
    .device-orbit{min-height:265px;border-radius:28px;background:var(--ink);position:relative;overflow:hidden;display:flex;justify-content:center;align-items:center}
    .device-orbit:before,.device-orbit:after{content:"";position:absolute;border:1px solid rgba(199,232,107,.28);border-radius:50%}
    .device-orbit:before{width:340px;height:340px}
    .device-orbit:after{width:450px;height:450px}
    .phone{position:relative;z-index:1;width:145px;height:250px;border:7px solid #171322;border-radius:24px;background:#f7f2e9;box-shadow:0 18px 35px rgba(0,0,0,.28);padding:12px}
    .phone-bar{height:15px;width:48px;border-radius:10px;background:var(--ink);margin:0 auto 16px}
    .phone-screen{height:72px;border-radius:12px;background:var(--coral);margin-bottom:10px}
    .phone-line{height:12px;background:#ddd4c9;border-radius:5px;margin:9px 0}
    .phone-line.short{width:65%}
    .download-panel{display:grid;grid-template-columns:1fr 310px;gap:28px;align-items:stretch}
    .download-copy,.qr-card,.preview-card,.version-panel,.step-card,.feature-card,.safety-panel,.faq-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
    .download-copy{padding:35px;background:var(--ink);color:#fff}
    .download-copy h2{color:#fff;margin:14px 0}
    .download-copy p{color:#d7d1dc;max-width:600px}
    .download-copy .tag{margin-right:6px}
    .qr-card{padding:26px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}
    .qr-code{width:142px;height:142px;padding:10px;background:#fff;border:1px solid var(--line);display:grid;grid-template-columns:repeat(9,1fr);gap:3px;margin:4px auto 15px}
    .qr-code span{background:var(--ink);border-radius:1px}
    .qr-code span:nth-child(3n+1),.qr-code span:nth-child(7n+2){background:var(--coral)}
    .qr-card p{font-size:13px;color:var(--muted);margin-bottom:16px}
    .platforms{display:flex;gap:9px;flex-wrap:wrap;margin:23px 0}
    .tag{display:inline-flex;padding:4px 10px;border-radius:999px;background:#eee9df;color:var(--muted);font-size:12px}
    .tag.lime{background:var(--lime);color:var(--ink)}
    .tag.coral{background:#f3d7cc;color:#73402e}
    .section-soft{background:#eee9df}
    .preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .preview-card{padding:15px 15px 20px}
    .preview-screen{height:265px;border-radius:15px;background:var(--ink);padding:14px;position:relative;overflow:hidden}
    .preview-screen:after{content:"J9";position:absolute;right:-8px;bottom:-28px;font-size:100px;font-weight:900;color:rgba(199,232,107,.12)}
    .screen-top{height:26px;border-bottom:1px solid rgba(255,255,255,.18);color:var(--lime);font-size:11px}
    .screen-block{height:66px;margin-top:13px;border-radius:10px;background:#5b496b}
    .screen-block.coral{background:var(--coral)}
    .screen-list{height:11px;border-radius:5px;background:#87798e;margin-top:12px;width:78%}
    .screen-list.small{width:52%}
    .preview-card h3{font-size:17px;margin:16px 0 4px}
    .preview-card p{font-size:13px;color:var(--muted);margin:0}
    .version-panel{padding:30px}
    .version-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .version-item{padding:22px 20px;border-right:1px solid var(--line)}
    .version-item:last-child{border-right:0}
    .version-item span{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
    .version-item strong{font-size:18px;color:var(--ink)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step-card{padding:25px;min-height:178px;position:relative}
    .step-number{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--lime);color:var(--ink);font-weight:800;margin-bottom:18px}
    .step-card p,.feature-card p,.safety-panel p{font-size:14px;color:var(--muted);margin-bottom:0}
    .feature-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
    .feature-card{padding:28px;min-height:185px}
    .feature-card:first-child{background:#dceba9}
    .feature-card:nth-child(2){background:#f0dfd8}
    .feature-icon{width:44px;height:44px;border-radius:13px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-weight:800;margin-bottom:20px}
    .safety-panel{padding:30px;background:#e6edc5;display:grid;grid-template-columns:1fr 1fr;gap:30px}
    .safety-list{display:grid;gap:12px}
    .safety-item{display:flex;gap:12px;align-items:flex-start}
    .safety-item b{width:26px;height:26px;border-radius:8px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:12px;flex:none}
    .safety-item p{color:var(--text);font-size:14px}
    .faq-wrap{max-width:900px;margin:auto;padding:8px 24px}
    .faq-item{border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent}
    .faq-item:last-child{border-bottom:0}
    .faq-question{width:100%;padding:21px 2px;background:none;color:var(--ink);display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;font-size:16px}
    .faq-question span:last-child{font-size:24px;font-weight:400;transition:.25s}
    .faq-answer{display:none;padding:0 34px 20px 2px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-strip{background:var(--coral);padding:36px 0}
    .cta-content{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-content h2{font-size:29px;margin:0 0 5px}
    .cta-content p{margin:0;color:#5c3d35}
    .site-footer{background:var(--ink);color:#d7d1dc;padding:62px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand p{color:#aaa1b4;font-size:13px;max-width:300px;margin-top:18px}
    .site-footer .brand{color:#fff!important}
    .site-footer h3{color:#fff;font-size:15px;margin-bottom:15px}
    .site-footer>div a:not(.brand){display:block;color:#aaa1b4;font-size:13px;margin:8px 0;transition:.2s}
    .site-footer>div a:not(.brand):hover{color:var(--lime)}
    .footer-note{font-size:12px;color:#9c93a5;max-width:850px;margin:24px 0}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;color:#8f8798;font-size:12px}
    .footer-bottom a{display:inline!important;color:#bdb4c5!important}
    @media(max-width:1024px){
      .navbar{gap:14px}.brand{min-width:205px;font-size:17px}
      .nav-links a{padding:8px 7px}
      .intro-grid,.download-panel{grid-template-columns:1fr 1fr;gap:28px}
      .preview-grid{grid-template-columns:repeat(2,1fr)}
      .feature-grid{grid-template-columns:1fr 1fr}.feature-card:first-child{grid-column:span 2}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}
      .brand{min-width:0;font-size:16px}.brand-mark{width:35px;height:35px}
      .mobile-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
      .nav-actions{display:none}
      .section{padding:56px 0}.page-intro{padding:42px 0}
      .intro-grid,.download-panel,.safety-panel{grid-template-columns:1fr}
      .device-orbit{min-height:230px}
      .section-head{display:block}.section-head p{margin-top:12px}
      .version-grid{grid-template-columns:1fr 1fr}
      .version-item:nth-child(2){border-right:0}.version-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .steps{grid-template-columns:1fr 1fr}.feature-grid{grid-template-columns:1fr}.feature-card:first-child{grid-column:auto}
      .cta-content{display:block}.cta-content .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:span 2}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:480px){
      h1{font-size:38px}.lead{font-size:15px}.section{padding:45px 0}
      .preview-grid,.steps,.version-grid{grid-template-columns:1fr}
      .version-item{border-right:0!important;border-bottom:1px solid var(--line)!important}
      .version-item:last-child{border-bottom:0!important}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .download-copy,.safety-panel,.version-panel{padding:24px}
      .btn{min-height:46px;width:100%}.hero-actions{display:grid}
      .faq-wrap{padding:4px 16px}.faq-question{min-height:58px}
    }