/* roulang page: index */
:root{
  --ink:#29242b;--muted:#756d75;--paper:#fffdfa;--warm:#f7f1eb;
  --orange:#f26b45;--amber:#f5a744;--berry:#542844;--plum:#372038;
  --lavender:#eee5f0;--line:#e9dfd9;--shadow:0 18px 45px rgba(73,40,50,.09);
  --radius:18px;--max:1220px
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,250,.94);border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:240px}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
.brand-mark:before{width:16px;height:12px;left:11px;top:9px}
.brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
.brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1}
.nav-links a{font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s}
.nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
.nav-action,.btn-primary{background:var(--orange);color:white;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
.nav-action:hover,.btn-primary:hover{background:#db5636;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
.menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
.hero{position:relative;overflow:hidden;padding:92px 0 78px;background:var(--warm)}
.hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(242,107,69,.18);border-radius:50%;right:-130px;top:-170px;box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
.hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
.eyebrow:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
h1{font-size:clamp(34px,4.3vw, sixty);font-size:clamp(36px,4.6vw,62px);line-height:1.16;letter-spacing:-.04em;color:var(--plum);max-width:700px}
.hero-copy{font-size:17px;color:var(--muted);max-width:620px;margin:23px 0 30px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-secondary{padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff}
.btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
.hero-notes{display:flex;gap:24px;flex-wrap:wrap;margin-top:33px;color:#776d72;font-size:13px}
.hero-notes span{display:flex;align-items:center;gap:7px}
.hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
.simulator-art{min-height:390px;background:var(--plum);border-radius:24px;padding:18px;box-shadow:var(--shadow);transform:rotate(2deg)}
.window-bar{display:flex;gap:7px;padding:5px 4px 15px}
.window-bar i{width:9px;height:9px;border-radius:50%;background:#f39a72}
.window-bar i:nth-child(2){background:#f5c56a}.window-bar i:nth-child(3){background:#b38bb5}
.screen{background:#f8f0eb;border-radius:15px;min-height:325px;padding:24px;display:grid;grid-template-columns:88px 1fr;gap:17px}
.screen-side{border-right:1px solid #e7d8d1;display:flex;flex-direction:column;gap:12px}
.screen-side b{width:48px;height:10px;background:#d9c6c8;border-radius:5px}.screen-side b:first-child{background:var(--orange)}
.screen-main small{color:var(--orange);font-weight:800}.screen-main h3{font-size:25px;color:var(--plum);margin:8px 0 17px}
.preview-card{background:#fff;border:1px solid #eaded9;border-radius:13px;padding:14px;display:flex;align-items:center;gap:13px;margin-bottom:13px}
.preview-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#f6a44c,#f16e54)}
.preview-card strong{display:block;color:var(--berry);font-size:14px}.preview-card span{font-size:12px;color:var(--muted)}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
.section-kicker{color:var(--orange);font-size:13px;font-weight:800;margin-bottom:7px}
h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--plum);letter-spacing:-.025em}
.section-intro{color:var(--muted);max-width:560px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.quick-card{padding:24px 21px;border:1px solid var(--line);border-radius:15px;transition:.25s;position:relative}
.quick-card:nth-child(1){background:#fff0e7}.quick-card:nth-child(2){background:#f0e7f2}.quick-card:nth-child(3){background:#fff8df}.quick-card:nth-child(4){background:#f3f1ed}
.quick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.quick-icon{font-size:25px;margin-bottom:12px}.quick-card h3{font-size:18px;color:var(--berry);margin-bottom:5px}.quick-card p{font-size:13px;color:var(--muted);min-height:45px}.arrow{display:block;color:var(--orange);font-size:22px;margin-top:10px}
.feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.feature-main,.feature-small{border-radius:20px;border:1px solid var(--line);overflow:hidden;position:relative}
.feature-main{min-height:390px;background:var(--berry);color:#fff;padding:34px;display:flex;flex-direction:column;justify-content:end}
.feature-main:before{content:"PG";position:absolute;right:35px;top:28px;font-size:130px;font-weight:900;color:rgba(255,255,255,.08)}
.feature-main h3{font-size:29px;position:relative}.feature-main p{color:#e8dbe5;max-width:430px;margin:10px 0 20px;position:relative}
.feature-small-wrap{display:grid;gap:18px}.feature-small{min-height:186px;padding:25px;background:#fff5df}.feature-small:nth-child(2){background:#f2eaf3}.feature-small h3{font-size:21px;color:var(--plum)}.feature-small p{color:var(--muted);font-size:14px;margin:7px 0}
.text-link{color:var(--orange);font-weight:800;font-size:14px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line);padding-top:22px}
.step{padding:10px 8px 10px 0}.step-num{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;background:var(--orange);color:white;font-weight:800;margin-bottom:17px}.step h3{font-size:18px;color:var(--berry);margin-bottom:7px}.step p{font-size:14px;color:var(--muted)}
.download-panel{background:#f0e7f1;border-radius:22px;padding:45px;display:grid;grid-template-columns:1fr .8fr;gap:45px;align-items:center}
.download-panel p{color:var(--muted);margin:15px 0 23px}.device-row{display:flex;align-items:end;justify-content:center;gap:15px}.device{width:145px;height:235px;background:var(--plum);border:7px solid #fff;border-radius:24px;padding:15px 10px;box-shadow:var(--shadow)}.device.small{width:105px;height:175px}.device-screen{background:#f7e7dc;height:100%;border-radius:14px;padding:13px}.device-screen b{display:block;height:9px;width:55%;background:var(--orange);border-radius:4px;margin-bottom:18px}.device-screen i{display:block;height:42px;background:#fff;border-radius:8px;margin-bottom:9px}
.download-info{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;font-size:12px;color:var(--muted)}.download-info span{background:#fff;padding:5px 9px;border-radius:7px}
.news-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}.featured-news{background:var(--warm);border-radius:18px;padding:30px;min-height:270px}.featured-news h3{font-size:25px;color:var(--plum);margin:18px 0 10px}.featured-news p{color:var(--muted);font-size:14px}
.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:95px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.news-date{font-size:13px;color:var(--muted)}.news-item h3{font-size:16px;color:var(--berry);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tag{display:inline-block;padding:4px 9px;border-radius:6px;background:#fce4d8;color:var(--orange);font-size:12px;font-weight:700}.faq{max-width:900px;margin:auto;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:21px 8px;font-size:17px;font-weight:700;color:var(--berry);display:flex;justify-content:space-between;gap:15px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--orange);font-size:21px}details[open] summary:after{content:"－"}details p{padding:0 42px 22px 8px;color:var(--muted);font-size:15px}
.cta{background:var(--orange);color:white;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{color:white}.cta p{color:#fff2eb;margin-top:7px}.cta .btn-secondary{border:0;color:var(--berry)}
.site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-weight:800;font-size:17px}.footer-copy{font-size:13px;color:#bdaabd;margin-top:15px;max-width:280px}.site-footer h3{color:#fff;font-size:14px;margin-bottom:13px}.footer-links{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#cbb9c8}.footer-links a:hover{color:#f6a16f}.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;font-size:12px;color:#ac98a9;display:flex;justify-content:space-between;gap:15px}
.empty-state{padding:32px;border:1px dashed #d9c8c1;border-radius:15px;color:var(--muted);background:#fffaf6}.empty-state a{color:var(--orange);font-weight:700}
:focus-visible{outline:3px solid rgba(242,107,69,.38);outline-offset:3px}
@media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:9px 7px;font-size:13px}.hero-grid{gap:35px}.quick-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.navbar{height:68px;gap:12px}.brand{min-width:0;flex:1}.brand-name{font-size:13px}.nav-action{padding:9px 12px;font-size:13px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fffdfa;border:1px solid var(--line);box-shadow:var(--shadow);padding:10px;border-radius:13px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.hero{padding:58px 0}.hero-grid,.feature-layout,.news-layout,.download-panel{grid-template-columns:1fr}.simulator-art{min-height:330px;transform:none}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:10px}.steps{grid-template-columns:repeat(2,1fr)}.download-panel{padding:28px;gap:28px}.cta{display:block;padding:30px 25px}.cta .btn-secondary{margin-top:18px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:520px){h1{font-size:35px}.hero-copy{font-size:15px}.hero-notes{gap:10px;display:grid}.screen{grid-template-columns:58px 1fr;padding:15px;min-height:270px}.screen-main h3{font-size:20px}.quick-grid,.steps{grid-template-columns:1fr}.feature-main{min-height:330px;padding:25px}.feature-small{min-height:160px}.news-item{grid-template-columns:1fr auto;gap:4px 10px}.news-date{grid-column:1/-1}.news-item p{grid-column:1/-1}.news-item .text-link{grid-column:2;grid-row:2}.footer-grid{grid-template-columns:1fr}.brand-mark{width:33px;height:33px}.brand-name{max-width:190px}}

/* roulang page: category1 */
:root{
      --ink:#29242b;--muted:#756d75;--paper:#fffdfa;--warm:#f7f1eb;
      --orange:#f26b45;--orange-dark:#d95637;--amber:#f5a744;
      --berry:#542844;--plum:#372038;--lavender:#eee5f0;
      --line:#e9dfd9;--soft-orange:#fff0e7;--soft-yellow:#fff8df;
      --shadow:0 18px 45px rgba(73,40,50,.09);--radius:18px;--max:1220px
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25;color:var(--plum);font-weight:800}
    h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.04em}
    h2{font-size:clamp(28px,3vw,42px)}
    h3{font-size:20px}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,250,.95);border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:240px}
    .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{display:inline-block;background:var(--orange);color:#fff;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
    .nav-action:hover,.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
    .hero{position:relative;overflow:hidden;padding:78px 0 72px;background:var(--warm)}
    .hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(242,107,69,.18);border-radius:50%;right:-130px;top:-180px;box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.06em}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
    .hero h1{max-width:650px;margin:17px 0}
    .hero-copy{font-size:17px;color:var(--muted);max-width:610px;margin:0 0 28px}
    .actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{display:inline-block;padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff;transition:.25s}
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .hero-notes{display:flex;gap:20px;flex-wrap:wrap;margin-top:29px;color:#776d72;font-size:13px}
    .hero-notes span{display:flex;align-items:center;gap:7px}.hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .simulator-window{background:#fff;border:1px solid #eaded9;border-radius:22px;padding:18px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .window-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:2px 4px 16px}
    .window-dots{display:flex;gap:6px}.window-dots i{width:8px;height:8px;border-radius:50%;background:var(--orange)}.window-dots i:nth-child(2){background:var(--amber)}.window-dots i:nth-child(3){background:#c6b2c5}
    .window-label{font-size:12px;color:var(--muted)}
    .screen{margin-top:18px;border-radius:15px;background:var(--berry);padding:26px;min-height:305px;position:relative;overflow:hidden}
    .screen:after{content:"PG";position:absolute;right:20px;bottom:-25px;font-size:150px;font-weight:900;color:rgba(255,255,255,.08)}
    .screen small{color:#ffd19d;font-weight:800}.screen h3{color:#fff;font-size:28px;margin:10px 0 19px;position:relative;z-index:1}
    .screen-tags{display:flex;gap:8px;flex-wrap:wrap;position:relative;z-index:1}.screen-tags span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:#fff;padding:6px 10px;border-radius:7px;font-size:12px}
    .screen-card{background:#fff;border-radius:12px;padding:13px;margin-top:17px;display:flex;align-items:center;gap:12px;position:relative;z-index:1}
    .screen-icon{width:40px;height:40px;border-radius:11px;background:var(--soft-orange);position:relative}.screen-icon:after{content:"✦";position:absolute;color:var(--orange);font-size:22px;left:9px;top:4px}
    .screen-card strong{display:block;color:var(--berry);font-size:14px}.screen-card span{font-size:12px;color:var(--muted)}
    .section{padding:82px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}.section-kicker{margin-bottom:8px}.section-intro{color:var(--muted);max-width:590px;margin:0}
    .quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.quick-card{padding:24px 21px;border:1px solid var(--line);border-radius:15px;transition:.25s}
    .quick-card:nth-child(1){background:var(--soft-orange)}.quick-card:nth-child(2){background:#f0e7f2}.quick-card:nth-child(3){background:var(--soft-yellow)}.quick-card:nth-child(4){background:#f3f1ed}
    .quick-card:hover,.info-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.quick-card h3{font-size:18px;color:var(--berry);margin:10px 0 5px}.quick-card p{font-size:13px;color:var(--muted);min-height:48px;margin-bottom:5px}.quick-icon{font-size:25px;color:var(--orange)}.arrow{color:var(--orange);font-size:22px}
    .split{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}.panel{border:1px solid var(--line);border-radius:20px;padding:34px;background:#fff}.panel.purple{background:var(--berry);color:#fff}.panel.purple h2,.panel.purple h3{color:#fff}.panel.purple p{color:#eadde7}
    .feature-list{list-style:none;padding:0;margin:25px 0 0}.feature-list li{display:flex;gap:13px;padding:15px 0;border-top:1px solid var(--line);color:var(--muted)}.purple .feature-list li{border-color:rgba(255,255,255,.16);color:#eadde7}.feature-list b{color:var(--orange);font-size:18px}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:25px;transition:.25s}.number{display:inline-flex;width:34px;height:34px;border-radius:10px;background:var(--soft-orange);color:var(--orange);align-items:center;justify-content:center;font-weight:800;margin-bottom:18px}.info-card h3{margin-bottom:8px}.info-card p{margin:0;color:var(--muted);font-size:14px}
    .download{background:#f2eaf3;border-radius:22px;padding:38px}.download-grid{display:grid;grid-template-columns:1fr .8fr;gap:35px;align-items:center}.download p{color:var(--muted)}.device-strip{display:flex;justify-content:center;gap:14px;align-items:end}.device{width:118px;height:205px;border:7px solid var(--plum);border-radius:21px;background:#fff;padding:12px 8px;box-shadow:8px 8px 0 rgba(84,40,68,.12)}.device:nth-child(2){height:238px;border-color:var(--orange)}.device-bar{height:9px;width:34px;border-radius:5px;background:#e7dce7;margin:0 auto 16px}.device-line{height:11px;border-radius:5px;background:var(--soft-orange);margin:11px 0}.device-line.short{width:65%;background:#eee5f0}.download-note{font-size:13px;color:var(--muted);margin-top:18px}.qr{width:110px;height:110px;border:8px solid #fff;background:repeating-linear-gradient(45deg,var(--plum) 0 5px,#fff 5px 10px);margin:20px 0}
    .faq{max-width:900px;margin:auto;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:20px 4px}summary{cursor:pointer;list-style:none;font-weight:800;color:var(--berry);padding-right:25px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:4px;color:var(--orange);font-size:22px;top:-5px}details[open] summary:after{content:"−"}details p{color:var(--muted);margin:13px 30px 0 0}
    .cta{background:var(--orange);color:#fff;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{color:#fff;margin-bottom:8px}.cta p{color:#fff2eb;margin:0}.cta .btn-secondary{border:0;color:var(--berry)}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand{color:#fff;font-weight:800;font-size:17px}.footer-copy{font-size:13px;color:#cdbccc;max-width:300px;margin-top:13px}.site-footer h3{font-size:15px;color:#fff;margin-bottom:13px}.footer-links{display:grid;gap:7px}.footer-links a{font-size:13px;color:#cdbccc;transition:.2s}.footer-links a:hover{color:#fff0e7}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:18px;font-size:12px;color:#b9a7b5}
    :focus-visible{outline:3px solid rgba(245,167,68,.65);outline-offset:3px}
    @media(max-width:1024px){.navbar{gap:14px}.brand{min-width:210px}.nav-links a{padding:9px 7px;font-size:13px}.quick-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(var(--max),calc(100% - 32px))}.navbar{height:70px}.brand{min-width:0;flex:1}.brand-name{font-size:13px}.nav-action{padding:9px 12px;font-size:13px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:65px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.hero{padding:58px 0}.hero-grid,.split,.download-grid{grid-template-columns:1fr;gap:30px}.hero h1{font-size:42px}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}.guide-grid{grid-template-columns:1fr}.download{padding:28px 22px}.cta{display:block;padding:32px 25px}.cta .btn-secondary{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(max-width:520px){.brand-mark{width:32px;height:32px;flex-basis:32px;border-radius:10px;box-shadow:4px 4px 0 var(--amber)}.brand-mark:before{left:8px;top:7px}.brand-mark:after{left:12px;top:21px}.nav-action{display:none}.hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-notes{gap:10px;display:grid}.quick-grid{grid-template-columns:1fr}.simulator-window{transform:none}.screen{padding:21px;min-height:270px}.device-strip{gap:7px}.device{transform:scale(.86);transform-origin:bottom center}.footer-grid{grid-template-columns:1fr;gap:24px}}

/* roulang page: article */
:root{
      --ink:#29242b;--muted:#756d75;--paper:#fffdfa;--warm:#f7f1eb;
      --orange:#f26b45;--amber:#f5a744;--berry:#542844;--plum:#372038;
      --lavender:#eee5f0;--line:#e9dfd9;--shadow:0 18px 45px rgba(73,40,50,.09);
      --radius:18px;--max:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.8}
    a{color:inherit;text-decoration:none}
    button{font:inherit;border:0;cursor:pointer}
    img{max-width:100%;display:block}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.35}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(255,253,250,.94);border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:235px}
    .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.32;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#665b64;padding:10px 11px;border-radius:9px;white-space:nowrap;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{display:inline-flex;justify-content:center;align-items:center;background:var(--orange);color:#fff;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
    .nav-action:hover,.btn-primary:hover{background:#db5636;color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .btn-secondary{display:inline-flex;justify-content:center;align-items:center;padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff;transition:.25s}
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px;font-size:20px;line-height:1}
    .article-hero{position:relative;overflow:hidden;background:var(--warm);padding:54px 0 62px}
    .article-hero:after{content:"";position:absolute;width:360px;height:360px;right:-150px;top:-175px;border-radius:50%;border:1px solid rgba(242,107,69,.2);box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
    .breadcrumb{position:relative;z-index:1;display:flex;align-items:center;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px;margin-bottom:26px}
    .breadcrumb a{transition:.2s}
    .breadcrumb a:hover{color:var(--orange)}
    .breadcrumb i{font-style:normal;color:#b8a9ad}
    .article-hero-inner{position:relative;z-index:1;max-width:920px}
    .article-category{display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border-radius:7px;background:#fae2d7;color:var(--orange);font-size:12px;font-weight:800}
    .article-category:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
    .article-hero h1{font-size:clamp(30px,4vw,48px);letter-spacing:0;margin:17px 0;color:var(--plum);font-weight:800}
    .article-summary{max-width:800px;color:var(--muted);font-size:16px;margin:0}
    .article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:17px;margin-top:24px;color:#7d7379;font-size:13px}
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .meta-dot{width:5px;height:5px;border-radius:50%;background:var(--amber)}
    .article-shell{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:55px;padding:66px 0 88px;align-items:start}
    .article-content{max-width:800px}
    .article-content p{font-size:16px;color:#423b42;margin:0 0 23px}
    .article-content h2{font-size:27px;color:var(--berry);margin:48px 0 17px;padding-left:15px;border-left:4px solid var(--orange)}
    .article-content h3{font-size:21px;color:var(--plum);margin:33px 0 14px}
    .article-content ul,.article-content ol{padding-left:24px;margin:0 0 25px;color:#423b42}
    .article-content li{margin:9px 0;padding-left:4px}
    .article-content blockquote{margin:30px 0;padding:20px 24px;background:#fff4df;border-left:4px solid var(--amber);color:#5e5154;border-radius:0 12px 12px 0}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:38px 0}
    .article-content img{border-radius:14px;margin:30px auto;border:1px solid var(--line)}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:14px}
    .article-content th,.article-content td{padding:13px;border:1px solid var(--line);text-align:left}
    .article-content th{background:#f8eee9;color:var(--berry)}
    .article-content a{color:var(--orange);font-weight:700;text-decoration:underline;text-underline-offset:3px}
    .article-aside{position:sticky;top:102px}
    .aside-panel{border:1px solid var(--line);border-radius:14px;background:#fff;padding:23px;margin-bottom:18px;box-shadow:0 9px 25px rgba(73,40,50,.04)}
    .aside-panel h2{font-size:17px;color:var(--berry);margin-bottom:13px}
    .aside-panel p{font-size:14px;color:var(--muted);margin:0 0 16px}
    .aside-list{margin:0;padding:0;list-style:none}
    .aside-list li{border-top:1px solid #f0e8e3}
    .aside-list a{display:block;padding:11px 0;font-size:14px;color:#574951;transition:.2s}
    .aside-list a:hover{color:var(--orange);padding-left:4px}
    .app-panel{background:var(--berry);color:#fff;border-color:var(--berry);overflow:hidden;position:relative}
    .app-panel:after{content:"PG";position:absolute;right:-10px;bottom:-33px;color:rgba(255,255,255,.08);font-size:94px;font-weight:900;line-height:1}
    .app-panel h2{color:#fff;position:relative;z-index:1}
    .app-panel p{color:#e8dbe5;position:relative;z-index:1}
    .app-panel .btn-primary{position:relative;z-index:1;background:var(--amber);color:var(--plum);box-shadow:none;padding:10px 15px;font-size:14px}
    .app-panel .btn-primary:hover{background:#ffc169;color:var(--plum)}
    .notice-box{display:flex;gap:14px;align-items:flex-start;background:#f3ebf4;border:1px solid #e6d9e7;border-radius:13px;padding:20px 22px;margin:36px 0}
    .notice-icon{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px}
    .notice-box strong{display:block;color:var(--berry);margin-bottom:3px}
    .notice-box p{font-size:14px!important;margin:0!important;color:#675d67!important}
    .article-bottom{background:var(--warm);padding:72px 0}
    .bottom-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:22px}
    .related-block,.article-cta{border-radius:18px;padding:30px}
    .related-block{background:#fff;border:1px solid var(--line)}
    .related-block h2,.article-cta h2{font-size:25px;margin-bottom:20px;color:var(--plum)}
    .related-item{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:15px 0;border-top:1px solid var(--line)}
    .related-item:first-of-type{border-top:0;padding-top:0}
    .related-item h3{font-size:16px;margin:0 0 4px;color:var(--berry)}
    .related-item p{margin:0;font-size:13px;color:var(--muted)}
    .related-date{font-size:12px;color:#9a8f94;white-space:nowrap;padding-top:3px}
    .article-cta{background:var(--orange);color:#fff;position:relative;overflow:hidden}
    .article-cta:after{content:"试玩";position:absolute;right:-15px;bottom:-32px;font-size:85px;font-weight:900;color:rgba(255,255,255,.11)}
    .article-cta h2{color:#fff;position:relative;z-index:1}
    .article-cta p{color:#fff4ef;position:relative;z-index:1;margin-bottom:23px}
    .article-cta .btn-secondary{position:relative;z-index:1;border:0;color:var(--berry)}
    .empty-content{padding:42px 30px;border:1px dashed #d9c8c4;border-radius:16px;background:#fffaf6;text-align:center}
    .empty-icon{width:54px;height:54px;margin:0 auto 15px;border-radius:16px;background:#fae5db;color:var(--orange);display:grid;place-items:center;font-size:24px;font-weight:800}
    .empty-content h2{padding:0;border:0;margin:0 0 10px;font-size:25px}
    .empty-content p{margin-bottom:20px}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:17px;line-height:1.45}
    .footer-copy{font-size:14px;color:#cdbbc9;margin:13px 0 0;max-width:330px}
    .site-footer h3{color:#fff;font-size:15px;margin:4px 0 14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#d6c3d1;transition:.2s}
    .footer-links a:hover{color:var(--amber);padding-left:3px}
    .copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:39px;padding-top:19px;display:flex;justify-content:space-between;gap:18px;color:#bba8b8;font-size:12px}
    .back-top{position:fixed;right:22px;bottom:24px;width:43px;height:43px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px rgba(55,32,56,.24);opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:15}
    .back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
    .back-top:hover{background:var(--orange);color:#fff}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(245,167,68,.55);outline-offset:3px}
    @media(max-width:1100px){
      .navbar{gap:13px}.brand{min-width:205px}.nav-links a{padding:9px 8px;font-size:13px}.nav-action{padding:10px 14px;font-size:14px}
      .article-shell{gap:35px;grid-template-columns:minmax(0,1fr) 245px}
    }
    @media(max-width:860px){
      .navbar{height:70px;justify-content:space-between;position:relative}.brand{min-width:0;max-width:255px}.brand-name{font-size:13px}
      .menu-toggle{display:block;order:3}.nav-action{order:2;padding:9px 13px;font-size:13px}
      .nav-links{display:none;position:absolute;top:70px;left:0;right:0;padding:13px 24px 20px;background:rgba(255,253,250,.98);border-bottom:1px solid var(--line);box-shadow:0 15px 25px rgba(73,40,50,.06)}
      .nav-links.open{display:grid}.nav-links a{padding:11px 12px}
      .article-hero{padding:42px 0 48px}.article-shell{grid-template-columns:1fr;padding:48px 0 62px}.article-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}.aside-panel{margin:0}
      .bottom-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:600px){
      .container{width:min(100% - 32px,var(--max))}.brand-mark{width:34px;height:34px;flex-basis:34px;border-radius:10px}.brand-mark:before{left:9px;top:8px}.brand-mark:after{left:13px;top:23px}.brand-name{font-size:12px}.nav-action{display:none}
      .article-hero h1{font-size:30px}.article-summary{font-size:15px}.article-meta{gap:10px 14px}.article-shell{padding-top:36px}.article-content p{font-size:15px;line-height:1.9}.article-content h2{font-size:23px;margin-top:38px}.article-content h3{font-size:19px}
      .article-aside{grid-template-columns:1fr}.aside-panel{padding:20px}.notice-box{padding:18px}.article-bottom{padding:48px 0}.related-block,.article-cta{padding:23px}.related-block h2,.article-cta h2{font-size:22px}.related-item{grid-template-columns:1fr}.related-date{padding:0;order:2}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 22px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:grid;gap:7px;margin-top:30px}.back-top{right:15px;bottom:18px}
    }
    @media(max-width:390px){
      .container{width:calc(100% - 26px)}.brand-name{font-size:11px}.menu-toggle{padding:7px 9px}.article-hero h1{font-size:27px}.footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category2 */
:root{
      --ink:#29242b;
      --muted:#756d75;
      --paper:#fffdfa;
      --warm:#f7f1eb;
      --orange:#f26b45;
      --amber:#f5a744;
      --berry:#542844;
      --plum:#372038;
      --lavender:#eee5f0;
      --line:#e9dfd9;
      --soft-orange:#fff0e7;
      --shadow:0 18px 45px rgba(73,40,50,.09);
      --radius:18px;
      --max:1220px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      background:var(--paper);
      color:var(--ink);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.04em;margin-bottom:0;color:var(--plum)}
    h2{font-size:clamp(28px,3vw,40px);color:var(--plum);margin-bottom:12px}
    h3{color:var(--berry)}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(255,253,250,.95);
      border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)
    }
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:240px}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;background:var(--orange);
      position:relative;box-shadow:5px 5px 0 var(--amber);flex:none
    }
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{
      font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s
    }
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;
      background:var(--orange);color:white;padding:12px 20px;border-radius:10px;
      font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)
    }
    .nav-action:hover,.btn-primary:hover{background:#db5636;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;
      padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);
      font-weight:700;background:#fff;transition:.25s
    }
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(245,167,68,.65);outline-offset:3px}
    .breadcrumb{padding:24px 0 0;color:var(--muted);font-size:14px}
    .breadcrumb a{color:var(--orange)}
    .breadcrumb span{padding:0 9px;color:#b0a3a3}
    .hero{
      position:relative;overflow:hidden;padding:64px 0 76px;
      background:var(--warm);border-bottom:1px solid var(--line)
    }
    .hero:after{
      content:"";position:absolute;width:450px;height:450px;border:1px solid rgba(242,107,69,.18);
      border-radius:50%;right:-140px;top:-200px;
      box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)
    }
    .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{
      color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em
    }
    .eyebrow{display:inline-flex;gap:8px;align-items:center;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:600px;margin:23px 0 30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-notes{display:flex;gap:22px;flex-wrap:wrap;margin-top:30px;color:#776d72;font-size:13px}
    .hero-notes span{display:flex;align-items:center;gap:7px}
    .hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .simulator-window{
      background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;
      box-shadow:var(--shadow);transform:rotate(1.5deg)
    }
    .window-bar{display:flex;align-items:center;gap:7px;padding:2px 3px 16px;border-bottom:1px solid var(--line)}
    .window-dot{width:9px;height:9px;border-radius:50%;background:#f5a744}
    .window-dot:nth-child(2){background:#d99a9a}.window-dot:nth-child(3){background:#b9a0bd}
    .window-label{margin-left:auto;color:var(--muted);font-size:12px}
    .screen-body{padding:22px 8px 8px}
    .screen-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px}
    .screen-title small{color:var(--orange);font-weight:800}
    .screen-title strong{display:block;font-size:24px;color:var(--plum)}
    .screen-tabs{display:flex;gap:8px;margin-bottom:18px}
    .screen-tabs span{padding:7px 11px;background:#f5efeb;border-radius:7px;font-size:12px;color:var(--muted)}
    .screen-tabs span.active{background:var(--berry);color:#fff}
    .game-rows{display:grid;gap:11px}
    .game-row{display:flex;align-items:center;gap:13px;border:1px solid var(--line);padding:12px;border-radius:12px}
    .game-icon{width:44px;height:44px;border-radius:11px;background:var(--soft-orange);position:relative;flex:none}
    .game-icon:before{content:"✦";position:absolute;inset:0;display:grid;place-items:center;color:var(--orange);font-size:23px}
    .game-row:nth-child(2) .game-icon{background:var(--lavender)}
    .game-row:nth-child(2) .game-icon:before{color:var(--berry);content:"◈"}
    .game-row:nth-child(3) .game-icon{background:#fff5d9}
    .game-row:nth-child(3) .game-icon:before{color:#c7802e;content:"◆"}
    .game-row strong{display:block;color:var(--berry);font-size:14px}
    .game-row small{color:var(--muted);font-size:12px}
    .row-arrow{margin-left:auto;color:var(--orange);font-size:20px}
    .section{padding:86px 0}
    .section.alt{background:var(--warm)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-kicker{margin-bottom:7px}
    .section-intro{color:var(--muted);max-width:610px}
    .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .feature-card{
      border:1px solid var(--line);border-radius:20px;padding:30px;min-height:285px;
      position:relative;overflow:hidden;background:#fff
    }
    .feature-card.primary{background:var(--berry);color:#fff;min-height:360px;display:flex;flex-direction:column;justify-content:end}
    .feature-card.primary:before{content:"PG";position:absolute;right:25px;top:15px;color:rgba(255,255,255,.08);font-size:145px;font-weight:900}
    .feature-card.primary h3{color:#fff;font-size:30px;position:relative}
    .feature-card.primary p{color:#eadce7;max-width:430px;position:relative}
    .feature-card.light{background:#fff5df}
    .feature-card.pale{background:#f2eaf3}
    .feature-card h3{font-size:22px;margin-bottom:10px}
    .feature-card p{color:var(--muted);font-size:14px}
    .feature-stack{display:grid;gap:18px}
    .text-link{color:var(--orange);font-weight:800;font-size:14px}
    .label-row{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
    .tag{display:inline-block;padding:5px 10px;border-radius:6px;background:#fce4d8;color:var(--orange);font-size:12px;font-weight:700}
    .tag.purple{background:#e9dced;color:var(--berry)}
    .tag.yellow{background:#fff1c9;color:#9b6a1d}
    .device-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
    .device-art{min-height:300px;display:flex;align-items:end;justify-content:center;gap:16px}
    .device{
      width:170px;height:270px;border:8px solid var(--plum);border-radius:25px;background:#fff;
      padding:14px 10px;box-shadow:12px 14px 0 rgba(242,107,69,.18)
    }
    .device.small{width:125px;height:205px;border-width:6px;box-shadow:8px 10px 0 rgba(84,40,68,.12)}
    .device-head{height:10px;width:55px;background:var(--lavender);border-radius:9px;margin:0 auto 18px}
    .device-block{height:48px;border-radius:9px;background:var(--soft-orange);margin-bottom:10px}
    .device-block.purple{background:var(--lavender);height:68px}
    .device-line{height:8px;background:#eee5df;border-radius:5px;margin:8px 5px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
    .step{padding:23px;border:1px solid var(--line);border-radius:15px;background:#fff}
    .step-num{color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.1em}
    .step h3{font-size:18px;margin:10px 0 7px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .info-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:25px}
    .info-card h3{margin-bottom:9px;font-size:20px}
    .info-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .faq{max-width:920px;margin:auto;border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:20px 0}
    .faq summary{cursor:pointer;list-style:none;font-weight:800;color:var(--berry);padding-right:28px;position:relative}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";position:absolute;right:3px;color:var(--orange);font-size:22px;top:-4px}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;margin:12px 28px 0 0}
    .cta{background:var(--orange);color:#fff;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{color:#fff;margin-bottom:0}.cta p{color:#fff2eb;margin:7px 0 0}
    .cta .btn-secondary{border:0;color:var(--berry)}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:17px}
    .footer-copy{color:#cbb8c7;font-size:14px;max-width:310px;margin-top:14px}
    .site-footer h3{color:#fff;font-size:15px;margin:0 0 14px}
    .footer-links{display:grid;gap:8px;font-size:14px;color:#cbb8c7}
    .footer-links a{transition:.2s}.footer-links a:hover{color:#fff2eb;transform:translateX(3px)}
    .copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:18px;color:#bba9b8;font-size:12px}
    @media(max-width:1024px){
      .navbar{gap:14px}.brand{min-width:205px}.nav-links a{padding:9px 7px;font-size:13px}
      .hero-grid,.device-section{gap:38px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{display:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.brand{min-width:0;flex:1}.brand-name{font-size:13px;max-width:210px}
      .nav-action{padding:9px 12px;font-size:13px}.menu-toggle{display:block}
      .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.open{display:flex}.nav-links a{padding:12px 14px}
      .hero{padding:45px 0 55px}.hero-grid,.feature-layout,.device-section,.info-grid{grid-template-columns:1fr}
      .hero-copy{font-size:16px}.simulator-window{transform:none;margin-top:12px}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .feature-stack{grid-template-columns:1fr 1fr}.feature-card{min-height:220px;padding:23px}.feature-card.primary{min-height:300px}
      .steps{grid-template-columns:1fr;gap:12px}.device-art{min-height:250px}
      .cta{display:block;padding:30px 25px}.cta .btn-primary,.cta .btn-secondary{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-bottom:7px}
    }
    @media(max-width:520px){
      h1{font-size:37px}.brand-mark{width:32px;height:32px;border-radius:9px}.brand-mark:before{left:8px;top:7px}.brand-mark:after{left:12px;top:21px}
      .brand-name{font-size:12px;max-width:155px}.nav-action{display:none}
      .feature-stack{grid-template-columns:1fr}.feature-card.primary{min-height:280px}
      .device-art{gap:8px}.device{width:145px;height:245px}.device.small{width:105px;height:180px}
      .footer-grid{grid-template-columns:1fr}.footer-grid>div:not(:first-child){display:block}
      .breadcrumb{font-size:13px}
    }

/* roulang page: category3 */
:root{
      --ink:#29242b;--muted:#756d75;--paper:#fffdfa;--warm:#f7f1eb;
      --orange:#f26b45;--amber:#f5a744;--berry:#542844;--plum:#372038;
      --lavender:#eee5f0;--line:#e9dfd9;--shadow:0 18px 45px rgba(73,40,50,.09);
      --radius:18px;--max:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
    a{color:inherit;text-decoration:none}
    button{font:inherit;border:0;cursor:pointer}
    img{max-width:100%;display:block}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h2{font-size:32px;color:var(--plum);margin-bottom:14px}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,250,.95);border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:240px}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber);flex:0 0 auto}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{display:inline-block;background:var(--orange);color:white;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
    .nav-action:hover,.btn-primary:hover{background:#db5636;color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
    .hero{position:relative;overflow:hidden;padding:76px 0 70px;background:var(--warm)}
    .hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(242,107,69,.18);border-radius:50%;right:-130px;top:-180px;box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
    .hero h1{font-size:clamp(36px,5vw,62px);letter-spacing:-.04em;color:var(--plum);max-width:700px;margin-bottom:22px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:630px;margin:0 0 30px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{display:inline-block;padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff;transition:.25s}
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .hero-notes{display:flex;gap:24px;flex-wrap:wrap;margin-top:31px;color:#776d72;font-size:13px}
    .hero-notes span{display:flex;align-items:center;gap:7px}
    .hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .play-panel{background:var(--berry);border-radius:22px;padding:18px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-top{height:28px;display:flex;align-items:center;gap:6px;padding:0 5px;color:#e8dbe5;font-size:12px}
    .panel-top i{width:8px;height:8px;border-radius:50%;background:#f5a744}
    .panel-screen{background:#fff8ef;border-radius:14px;padding:25px;min-height:315px;position:relative;overflow:hidden}
    .panel-screen:before{content:"PG";position:absolute;right:15px;top:-19px;font-size:140px;font-weight:900;color:rgba(242,107,69,.08)}
    .panel-screen small{color:var(--orange);font-weight:800;position:relative}
    .panel-screen h3{font-size:27px;color:var(--plum);margin:8px 0 20px;position:relative}
    .play-row{display:flex;align-items:center;gap:13px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px;margin-bottom:12px;position:relative}
    .play-icon{width:42px;height:42px;border-radius:11px;background:#f9d5c5;color:var(--orange);display:grid;place-items:center;font-weight:900}
    .play-row strong{display:block;color:var(--berry);font-size:14px}
    .play-row span{font-size:12px;color:var(--muted)}
    .play-row b{margin-left:auto;color:var(--orange);font-size:20px}
    .section{padding:82px 0}
    .section.alt{background:var(--warm)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-kicker{color:var(--orange);font-size:13px;font-weight:800;margin-bottom:7px}
    .section-intro{color:var(--muted);max-width:590px;margin-bottom:0}
    .category-strip{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:27px}
    .category-strip a{padding:9px 15px;border:1px solid var(--line);border-radius:30px;background:#fff;color:var(--berry);font-size:14px;transition:.2s}
    .category-strip a:hover,.category-strip a.active{background:var(--orange);border-color:var(--orange);color:#fff}
    .game-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .game-feature{min-height:360px;border-radius:20px;background:var(--berry);padding:32px;color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end}
    .game-feature:before{content:"试玩";position:absolute;right:25px;top:18px;font-size:100px;font-weight:900;color:rgba(255,255,255,.08)}
    .game-feature h3{font-size:30px;position:relative;margin-bottom:10px}
    .game-feature p{color:#eadde7;max-width:470px;position:relative}
    .feature-label{display:inline-block;width:max-content;padding:5px 10px;background:#f5a744;color:#4a2a31;border-radius:7px;font-size:12px;font-weight:800;margin-bottom:15px}
    .game-side{display:grid;gap:18px}
    .game-card{border:1px solid var(--line);border-radius:18px;padding:25px;background:#fff5df;transition:.25s}
    .game-card:nth-child(2){background:#f0e7f2}
    .game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .game-card h3{font-size:21px;color:var(--plum);margin:12px 0 7px}
    .game-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
    .tag{display:inline-block;padding:4px 9px;border-radius:6px;background:#fce4d8;color:var(--orange);font-size:12px;font-weight:700}
    .text-link{color:var(--orange);font-weight:800;font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .step{padding:25px 21px;border-top:3px solid var(--amber);background:#fff;border:1px solid var(--line);border-radius:15px;min-height:190px}
    .step-number{color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.08em}
    .step h3{font-size:19px;color:var(--berry);margin:17px 0 8px}
    .step p{font-size:14px;color:var(--muted);margin-bottom:0}
    .info-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:stretch}
    .info-card{background:#fff0e7;border-radius:20px;padding:32px}
    .info-card h3{font-size:25px;color:var(--plum);margin:18px 0 10px}
    .info-card p{color:var(--muted)}
    .info-points{list-style:none;padding:0;margin:22px 0 0}
    .info-points li{padding:11px 0;border-bottom:1px solid rgba(84,40,68,.12);color:var(--berry);font-weight:700}
    .info-points li:before{content:"✓";color:var(--orange);margin-right:9px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:105px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .news-item h3{font-size:16px;color:var(--berry);margin:0 0 3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .news-item p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .news-date{font-size:13px;color:var(--muted)}
    .faq{max-width:900px;margin:auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;text-align:left;align-items:center;padding:21px 3px;background:transparent;color:var(--berry);font-weight:800;font-size:16px}
    .faq-question span:last-child{font-size:22px;color:var(--orange);transition:.2s}
    .faq-answer{color:var(--muted);font-size:14px;padding:0 36px 21px 3px}
    .faq-item:not([open]) .faq-answer{display:none}
    .faq-item[open] .faq-question span:last-child{transform:rotate(45deg)}
    .cta{background:var(--orange);color:white;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{color:white;margin-bottom:0}
    .cta p{color:#fff2eb;margin:8px 0 0}
    .cta .btn-secondary{border:0;color:var(--berry);white-space:nowrap}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:17px}
    .footer-copy{font-size:13px;color:#cbb9c7;max-width:330px;margin-top:14px}
    .site-footer h3{font-size:14px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#cbb9c7;transition:.2s}
    .footer-links a:hover{color:#fff0d8}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#bca9b8;font-size:12px}
    .back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:50%;background:var(--berry);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.25s}
    .back-top.show{opacity:1;pointer-events:auto}
    :focus-visible{outline:3px solid rgba(242,107,69,.45);outline-offset:3px}
    @media(max-width:1024px){
      .brand{min-width:205px}.nav-links a{padding:9px 7px;font-size:13px}.navbar{gap:13px}
      .hero-grid{gap:35px}.steps{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:68px}.brand-name{font-size:13px}.brand{min-width:0;flex:1}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:75px;background:#fffdfa;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px}.nav-action{padding:10px 13px;font-size:13px}.menu-toggle{display:block}
      .hero{padding:56px 0 52px}.hero-grid,.game-layout,.info-layout{grid-template-columns:1fr}.hero h1{font-size:39px}.panel-screen{min-height:275px}
      .section{padding:58px 0}.section-head{display:block}.section-head .section-intro{margin-top:12px}
      .steps{grid-template-columns:1fr 1fr}.cta{display:block;padding:32px 26px}.cta .btn-secondary{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}
    }
    @media(max-width:520px){
      .hero h1{font-size:34px}.hero-copy{font-size:15px}.button-row a{width:100%;text-align:center}
      .hero-notes{gap:10px;display:grid}.game-feature{min-height:320px;padding:25px}.game-feature h3{font-size:25px}
      .steps{grid-template-columns:1fr}.news-item{grid-template-columns:1fr auto;gap:5px}.news-item .news-body{grid-column:1/-1;grid-row:2}
      .footer-grid{grid-template-columns:1fr}.footer-brand{max-width:300px}
    }

/* roulang page: category5 */
:root{
      --ink:#29242b;
      --muted:#756d75;
      --paper:#fffdfa;
      --warm:#f7f1eb;
      --orange:#f26b45;
      --orange-dark:#db5636;
      --amber:#f5a744;
      --berry:#542844;
      --plum:#372038;
      --lavender:#eee5f0;
      --line:#e9dfd9;
      --white:#fff;
      --shadow:0 18px 45px rgba(73,40,50,.09);
      --shadow-small:0 10px 25px rgba(73,40,50,.08);
      --radius:18px;
      --max:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h1{font-size:clamp(36px,5vw,64px);letter-spacing:-.04em;color:var(--plum);margin-bottom:20px}
    h2{font-size:clamp(27px,3vw,40px);color:var(--plum);margin-bottom:12px}
    h3{color:var(--berry)}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,250,.95);border-bottom:1px solid rgba(233,223,217,.9);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:240px}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber);flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{display:inline-block;background:var(--orange);color:#fff;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
    .nav-action:hover,.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
    .hero{position:relative;overflow:hidden;padding:76px 0 70px;background:var(--warm)}
    .hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(242,107,69,.18);border-radius:50%;right:-120px;top:-180px;box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;gap:8px;align-items:center;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:625px;margin:0 0 29px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{display:inline-block;padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff;transition:.25s}
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .hero-notes{display:flex;gap:24px;flex-wrap:wrap;margin-top:30px;color:#776d72;font-size:13px}
    .hero-notes span{display:flex;align-items:center;gap:7px}
    .hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .download-visual{min-height:370px;background:var(--berry);border-radius:24px;padding:26px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .download-visual:before{content:"PG APP";position:absolute;right:22px;top:16px;color:rgba(255,255,255,.08);font-size:70px;font-weight:900;letter-spacing:-.08em}
    .app-window{position:relative;z-index:1;background:#fffdfa;border-radius:18px;padding:18px;max-width:390px;margin:28px auto 0;box-shadow:0 20px 35px rgba(33,16,31,.22)}
    .window-bar{display:flex;align-items:center;gap:6px;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:18px}
    .window-bar b{width:8px;height:8px;border-radius:50%;background:var(--orange)}
    .window-bar b:nth-child(2){background:var(--amber)}
    .window-bar b:nth-child(3){background:#d7c5d5}
    .app-label{font-size:12px;color:var(--orange);font-weight:800}
    .app-window h3{font-size:24px;margin:7px 0 16px}
    .app-tile{display:flex;align-items:center;gap:12px;padding:13px;background:#f8f1ec;border-radius:12px;margin-top:10px}
    .tile-icon{width:42px;height:42px;border-radius:12px;background:var(--orange);color:#fff;display:grid;place-items:center;font-weight:900}
    .app-tile strong{display:block;color:var(--berry);font-size:14px}
    .app-tile span{display:block;color:var(--muted);font-size:12px}
    .section{padding:84px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-intro{color:var(--muted);max-width:590px}
    .crumbs{padding:20px 0;color:var(--muted);font-size:13px}
    .crumbs a{color:var(--orange);font-weight:700}
    .download-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch}
    .panel-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:32px;box-shadow:var(--shadow-small)}
    .panel-card h2{font-size:30px}
    .panel-card p{color:var(--muted)}
    .platform-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:25px 0}
    .platform{border:1px solid var(--line);border-radius:12px;padding:15px 12px;background:#fffaf5}
    .platform strong{display:block;color:var(--berry);font-size:15px}
    .platform span{font-size:12px;color:var(--muted)}
    .qr-card{background:var(--plum);color:#fff;border-radius:var(--radius);padding:32px;display:flex;align-items:center;gap:25px;min-height:245px}
    .qr-box{width:132px;height:132px;flex:none;background:#fff;border-radius:12px;padding:10px;display:grid;grid-template-columns:repeat(7,1fr);gap:3px}
    .qr-box i{background:var(--berry);border-radius:1px}
    .qr-box i:nth-child(3n){background:var(--orange)}
    .qr-card h3{color:#fff;font-size:24px}
    .qr-card p{color:#e6d9e4;font-size:13px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:25px;background:var(--warm);border:1px solid var(--line);border-radius:15px;position:relative}
    .step-num{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--orange);color:#fff;font-weight:800;margin-bottom:20px}
    .step h3{font-size:18px;margin-bottom:8px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .feature-band{background:#f2eaf3;border-radius:22px;padding:35px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .feature-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
    .feature-item h3{font-size:18px;margin-bottom:8px}
    .feature-item p{font-size:14px;color:var(--muted);margin:0}
    .notice{display:flex;align-items:flex-start;gap:13px;padding:18px 20px;background:#fff5df;border-left:4px solid var(--amber);border-radius:10px;color:#665b55;font-size:14px;margin-top:22px}
    .faq{max-width:900px;margin:auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;background:transparent;color:var(--berry);font-weight:800;text-align:left}
    .faq-question span:last-child{font-size:22px;color:var(--orange);transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 38px 20px 4px}
    .faq-item:first-child .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{background:var(--orange);color:#fff;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{color:#fff;margin-bottom:5px}
    .cta p{color:#fff2eb;margin:0}
    .cta .btn-secondary{border:0;color:var(--berry)}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:17px}
    .footer-copy{font-size:13px;color:#cdbaca;max-width:310px;margin-top:14px}
    .site-footer h3{font-size:15px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#cdbaca;transition:.2s}
    .footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#bca8b9}
    :focus-visible{outline:3px solid rgba(245,167,68,.65);outline-offset:3px}
    @media(max-width:1024px){
      .navbar{gap:14px}.brand{min-width:210px}.nav-links a{padding:9px 7px;font-size:13px}
      .hero-grid{gap:35px}.download-panel{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.brand{min-width:0;flex:1}.brand-name{font-size:13px}.nav-action{padding:9px 12px;font-size:13px}
      .menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;padding:10px;background:#fffdfa;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}
      .hero{padding:55px 0 48px}.hero-grid{grid-template-columns:1fr;gap:35px}.hero-copy{font-size:16px}
      .download-visual{min-height:320px;padding:18px}.app-window{margin-top:28px}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .platform-list,.steps,.feature-grid{grid-template-columns:1fr 1fr}
      .qr-card{align-items:flex-start;flex-direction:column}.qr-box{width:116px;height:116px}
      .cta{padding:30px 24px;display:block}.cta .button-row{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:37px}.brand-mark{width:32px;height:32px;border-radius:10px;box-shadow:4px 4px 0 var(--amber)}
      .brand-mark:before{left:8px;top:7px}.brand-mark:after{left:12px;top:22px}
      .nav-action{display:none}.button-row>a{width:100%;text-align:center}
      .platform-list,.steps,.feature-grid{grid-template-columns:1fr}
      .panel-card,.feature-band{padding:24px}.qr-card{padding:25px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{max-width:300px}
    }

/* roulang page: category4 */
:root{
      --ink:#29242b;--muted:#756d75;--paper:#fffdfa;--warm:#f7f1eb;
      --orange:#f26b45;--amber:#f5a744;--berry:#542844;--plum:#372038;
      --lavender:#eee5f0;--line:#e9dfd9;--shadow:0 18px 45px rgba(73,40,50,.09);
      --radius:18px;--max:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(245,167,68,.55);outline-offset:3px}
    button{font:inherit;border:0;cursor:pointer}
    img{max-width:100%;display:block}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25}
    h1{font-size:clamp(34px,5vw,62px);letter-spacing:-.04em}
    h2{font-size:clamp(27px,3vw,40px);color:var(--plum);margin-bottom:12px}
    h3{color:var(--berry)}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,250,.94);border-bottom:1px solid rgba(233,223,217,.85);backdrop-filter:blur(14px)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:240px}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--orange);position:relative;box-shadow:5px 5px 0 var(--amber);flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:#fff6e9;border-radius:3px}
    .brand-mark:before{width:16px;height:12px;left:11px;top:9px}
    .brand-mark:after{width:5px;height:5px;left:15px;top:25px;box-shadow:9px 0 0 #fff6e9}
    .brand-name{font-weight:800;font-size:15px;line-height:1.3;color:var(--berry)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#665b64;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#fae6dc;color:var(--orange)}
    .nav-action,.btn-primary{background:var(--orange);color:white;padding:12px 20px;border-radius:10px;font-weight:700;transition:.25s;box-shadow:0 8px 18px rgba(242,107,69,.2)}
    .nav-action:hover,.btn-primary:hover{background:#db5636;transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,107,69,.28)}
    .menu-toggle{display:none;background:var(--lavender);color:var(--berry);padding:8px 11px;border-radius:8px}
    .hero{position:relative;overflow:hidden;padding:82px 0 70px;background:var(--warm)}
    .hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(242,107,69,.18);border-radius:50%;right:-130px;top:-170px;box-shadow:0 0 0 28px rgba(242,107,69,.04),0 0 0 58px rgba(84,40,68,.035)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--amber);border-radius:4px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin:23px 0 30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{padding:11px 19px;border:1px solid #d8c7c5;border-radius:10px;color:var(--berry);font-weight:700;background:#fff;transition:.25s}
    .btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
    .hero-notes{display:flex;gap:24px;flex-wrap:wrap;margin-top:33px;color:#776d72;font-size:13px}
    .hero-notes span{display:flex;align-items:center;gap:7px}
    .hero-notes i{width:8px;height:8px;border-radius:50%;background:var(--amber)}
    .news-board{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow);position:relative}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:8px}
    .board-top strong{color:var(--plum);font-size:18px}
    .board-top span{font-size:12px;color:var(--orange);font-weight:700}
    .board-item{display:grid;grid-template-columns:42px 1fr;gap:14px;padding:18px 0;border-bottom:1px solid #f0e9e4}
    .board-item:last-child{border-bottom:0}
    .board-icon{width:42px;height:42px;border-radius:12px;background:#fae6dc;color:var(--orange);display:grid;place-items:center;font-weight:800}
    .board-item:nth-child(3) .board-icon{background:var(--lavender);color:var(--berry)}
    .board-item:nth-child(4) .board-icon{background:#fff3cf;color:#9d6a19}
    .board-item h3{font-size:15px;margin:0 0 4px}
    .board-item p{font-size:13px;color:var(--muted);margin:0}
    .breadcrumb-wrap{padding:18px 0;border-bottom:1px solid var(--line)}
    .breadcrumb{margin:0;color:var(--muted);font-size:13px}
    .breadcrumb a{color:var(--orange)}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-kicker{color:var(--orange);font-size:13px;font-weight:800;margin-bottom:7px}
    .section-intro{color:var(--muted);max-width:600px}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:26px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.25s}
    .topic-card:nth-child(2){background:#fff5df}
    .topic-card:nth-child(3){background:#f2eaf3}
    .topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .topic-number{color:var(--orange);font-size:14px;font-weight:800}
    .topic-card h3{font-size:20px;margin:13px 0 8px}
    .topic-card p{font-size:14px;color:var(--muted);margin:0}
    .content-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:stretch}
    .featured-news{background:var(--berry);color:#fff;border-radius:20px;padding:36px;min-height:360px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
    .featured-news:before{content:"资讯";position:absolute;right:24px;top:18px;font-size:86px;font-weight:900;color:rgba(255,255,255,.08)}
    .featured-news .tag{background:#ffe1d5;color:var(--orange)}
    .featured-news h3{font-size:28px;color:#fff;margin:22px 0 10px;position:relative}
    .featured-news p{color:#eadde5;max-width:520px;font-size:15px;position:relative}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:82px 1fr auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .news-item h3{font-size:16px;margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .news-item p{font-size:13px;color:var(--muted);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .news-date{font-size:12px;color:var(--muted)}
    .tag{display:inline-block;padding:4px 9px;border-radius:6px;background:#fce4d8;color:var(--orange);font-size:12px;font-weight:700}
    .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .guide-step{padding:23px 20px;border-top:3px solid var(--orange);background:var(--warm);border-radius:12px}
    .guide-step:nth-child(2){border-color:var(--amber)}
    .guide-step:nth-child(3){border-color:var(--berry)}
    .guide-step:nth-child(4){border-color:#b87994}
    .step-no{font-size:13px;color:var(--orange);font-weight:800}
    .guide-step h3{font-size:18px;margin:10px 0 6px}
    .guide-step p{font-size:13px;color:var(--muted);margin:0}
    .faq{max-width:900px;margin:auto;border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:0}
    .faq summary{list-style:none;cursor:pointer;padding:21px 42px 21px 0;position:relative;font-weight:800;color:var(--berry)}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";position:absolute;right:6px;color:var(--orange);font-size:24px;font-weight:400;top:15px}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);font-size:14px;margin:-4px 38px 22px 0}
    .cta{background:var(--orange);color:white;border-radius:20px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{color:white;margin:0}
    .cta p{color:#fff2eb;margin:7px 0 0}
    .cta .btn-secondary{border:0;color:var(--berry)}
    .site-footer{background:var(--plum);color:#e9dce7;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:17px}
    .footer-copy{font-size:13px;color:#cdbbc9;max-width:300px;margin-top:13px}
    .site-footer h3{font-size:14px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#cdbbc9;transition:.2s}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .copyright{border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:18px;font-size:12px;color:#bca9b9}
    .back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:50%;background:var(--berry);color:#fff;box-shadow:var(--shadow);font-size:20px;z-index:10}
    @media(max-width:1024px){
      .navbar{gap:12px}.brand{min-width:205px}.nav-links a{padding:9px 7px;font-size:13px}
      .hero-grid,.content-layout{gap:35px}.guide-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .navbar{height:70px}.brand{min-width:0;flex:1}.brand-name{font-size:13px;max-width:195px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-action{display:none}.menu-toggle{display:block}
      .hero{padding:58px 0 50px}.hero-grid,.content-layout{grid-template-columns:1fr}.hero-copy{font-size:16px}
      .section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:10px}
      .topic-grid{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr 1fr}
      .news-item{grid-template-columns:1fr auto;gap:8px}.news-item .tag{grid-row:1/3}.news-item p{grid-column:1/-1}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:8px}
      .cta{display:block;padding:30px 25px}.cta .btn-secondary{margin-top:20px}
    }
    @media(max-width:520px){
      h1{font-size:35px}.hero-actions a{width:100%;text-align:center}.hero-notes{gap:12px;display:grid}
      .news-board{padding:20px}.featured-news{min-height:300px;padding:26px}.guide-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}.breadcrumb-wrap{padding:14px 0}
    }

/* 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}