/* roulang page: index */
:root{
            --ink:#292331;
            --muted:#706a78;
            --purple:#5a376d;
            --purple-deep:#392243;
            --purple-soft:#eee7f1;
            --orange:#ed794e;
            --orange-dark:#cc5e38;
            --cream:#fbf9f6;
            --warm:#f5efe9;
            --line:#e8e0e5;
            --white:#fff;
            --shadow:0 14px 38px rgba(57,34,67,.08);
            --radius:16px;
            --container:1220px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);font-size:15px;line-height:1.8}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(237,121,78,.55);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{height:78px;background:rgba(251,249,246,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .header-inner{height:100%;display:flex;align-items:center;gap:35px}
        .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.3px}
        .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft)}
        .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--orange);border-radius:50%}
        .logo-mark:before{width:6px;height:6px;left:8px;top:10px;box-shadow:11px 0 0 var(--purple)}
        .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px}
        .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
        .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
        .header-action,.btn-primary{color:#fff;background:var(--purple)}
        .header-action:hover,.btn-primary:hover{background:var(--purple-deep);transform:translateY(-2px)}
        .btn-orange{background:var(--orange);color:#fff}.btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}.btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
        .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px}
        .hero{padding:82px 0 74px;overflow:hidden;background:linear-gradient(130deg,#fbf9f6 46%,#f1e9f3 100%)}
        .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:1.5px;text-transform:uppercase}
        h1{font-size:clamp(40px,5vw,61px);line-height:1.18;letter-spacing:-2px;margin:17px 0 22px;color:var(--purple-deep)}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.3;letter-spacing:-1px;color:var(--purple-deep)}
        h3{font-size:19px;line-height:1.4;color:var(--purple-deep)}
        .hero-copy p{font-size:17px;color:var(--muted);max-width:570px}
        .hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
        .hero-art{min-height:385px;position:relative;display:flex;align-items:center;justify-content:center}
        .orbit{position:absolute;width:390px;height:290px;border:1px solid #d8c8de;border-radius:48% 52% 45% 55%;transform:rotate(-16deg)}
        .screen{position:relative;width:365px;background:var(--purple-deep);border-radius:22px;padding:18px;box-shadow:0 24px 45px rgba(57,34,67,.22);transform:rotate(4deg)}
        .screen-bar{height:22px;display:flex;gap:6px;align-items:center;border-bottom:1px solid #6f5778;margin-bottom:16px}
        .dot{width:7px;height:7px;border-radius:50%;background:#ed794e}.dot:nth-child(2){background:#d8bc79}.dot:nth-child(3){background:#92b29d}
        .screen-title{color:#fff;font-weight:700;font-size:16px;margin-bottom:16px}
        .screen-panels{display:grid;grid-template-columns:1.2fr .8fr;gap:10px}
        .screen-box{height:116px;background:#60466d;border-radius:11px;padding:12px;color:#f8eaf5}
        .screen-box.large{background:#7a5571;height:160px}
        .screen-line{height:7px;border-radius:6px;background:#bd8ba0;margin:8px 0;width:78%}
        .screen-line.short{width:48%}.screen-chip{display:inline-block;background:var(--orange);color:#fff;border-radius:20px;font-size:10px;padding:2px 8px}
        .signal{position:absolute;right:3%;bottom:12%;background:#fff;padding:16px 19px;border-radius:14px;box-shadow:var(--shadow);font-size:13px;color:var(--muted)}
        .signal strong{display:block;font-size:18px;color:var(--purple)}
        section{padding:82px 0}
        .trust{padding:22px 0;background:#fff;border-bottom:1px solid var(--line)}
        .trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
        .trust-item{display:flex;gap:13px;align-items:center}.trust-icon{width:38px;height:38px;border-radius:11px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-weight:800}.trust-item b{display:block;font-size:15px}.trust-item span{font-size:12px;color:var(--muted)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}.section-head p{color:var(--muted);max-width:530px}
        .intro{background:var(--warm)}.intro-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:75px;align-items:start}
        .intro-text p{color:var(--muted);margin-top:17px}.steps{border-top:1px solid #d8cfc9}.step{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid #d8cfc9}.step-num{font-size:25px;color:var(--orange);font-weight:800}.step p{color:var(--muted);margin-top:4px;font-size:14px}
        .hall{background:var(--purple-deep);color:#fff}.hall h2{color:#fff}.hall-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:center}.hall p{color:#d6c9db;margin:18px 0 25px}.hall-window{border:1px solid #81648d;background:#4d3457;border-radius:18px;padding:20px;transform:rotate(-2deg)}.hall-row{display:flex;gap:12px;margin-top:12px}.hall-tile{height:92px;flex:1;border-radius:12px;background:#755279;padding:14px;color:#f8dfd4}.hall-tile:nth-child(2){background:#a35e60}.hall-tile:nth-child(3){background:#4d776f}
        .play-wrap{background:#fff}.play-list{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.play-card{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--cream);display:flex;gap:20px;align-items:flex-start;transition:.2s}.play-card:first-child{grid-row:span 2;background:var(--purple-soft)}.play-card:hover{border-color:#bca7c5;transform:translateY(-3px);box-shadow:var(--shadow)}.play-index{font-size:29px;color:var(--orange);font-weight:800}.play-card p{color:var(--muted);font-size:14px;margin:8px 0 13px}.tag{display:inline-block;padding:4px 9px;border-radius:20px;background:#fff;color:var(--purple);font-size:12px;margin-right:5px}
        .download{background:#f0e8f1}.download-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:center}.device{width:220px;height:350px;border:8px solid var(--purple-deep);border-radius:31px;background:#fff;margin:auto;box-shadow:var(--shadow);padding:35px 15px 15px}.device-top{height:8px;width:75px;background:#ddd2dc;border-radius:8px;margin:-19px auto 25px}.device-panel{height:100px;border-radius:13px;background:var(--purple-soft);margin-bottom:13px;padding:14px}.device-panel b{font-size:13px;color:var(--purple)}.device-panel span{display:block;height:8px;background:#ceb9d3;border-radius:5px;margin-top:12px}.download-copy p{color:var(--muted);margin:14px 0 23px}.version-box{display:flex;gap:25px;padding:16px 0;border-top:1px solid #d5c8d7;border-bottom:1px solid #d5c8d7;margin-bottom:25px}.version-box small{display:block;color:var(--muted)}.version-box strong{color:var(--purple)}
        .guide{background:#fff}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px}.timeline{border-left:2px solid #ddcfe0;padding-left:25px}.timeline-item{position:relative;margin-bottom:25px}.timeline-item:before{content:"";position:absolute;left:-34px;top:7px;width:11px;height:11px;background:var(--orange);border:3px solid #fae2d8;border-radius:50%}.timeline-item p{color:var(--muted);font-size:14px;margin-top:4px}.ios-panel{background:var(--warm);border-radius:18px;padding:30px}.ios-panel p{color:var(--muted);margin:12px 0 20px}.ios-row{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid #ddd2ca;font-size:14px}.ios-row span{color:var(--muted)}
        .updates{background:var(--cream)}.updates-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:60px}.update-intro p{color:var(--muted);margin-top:15px}.update-list{border-top:1px solid var(--line)}.update-item{display:grid;grid-template-columns:92px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.update-date{font-size:13px;color:var(--orange-dark);font-weight:700}.update-meta{font-size:12px;color:var(--muted);margin-top:5px}.update-item h3{font-size:17px}.update-item p{font-size:14px;color:var(--muted);margin-top:4px}
        .matrix{background:#fff}.matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.matrix-card{padding:22px;border-radius:14px;border:1px solid var(--line);background:var(--cream);transition:.2s}.matrix-card:hover{border-color:var(--purple);background:var(--purple-soft);transform:translateY(-3px)}.matrix-card h3{font-size:16px}.matrix-card p{font-size:13px;color:var(--muted);margin-top:7px}
        .security{background:var(--warm)}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.check-panel{background:#fff;border-radius:16px;padding:28px}.check-panel h3{margin-bottom:14px}.check-list{list-style:none}.check-list li{padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}.check-list li:before{content:"✓";color:var(--orange);font-weight:800;margin-right:10px}
        .faq-list{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 5px;font-weight:700;cursor:pointer}.faq-q span{font-size:23px;color:var(--orange);transition:.2s}.faq-a{display:none;color:var(--muted);padding:0 38px 20px 5px;font-size:14px}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span{transform:rotate(45deg)}
        .closing{padding:45px 0}.closing-box{background:var(--purple-deep);border-radius:22px;padding:38px 50px;display:flex;align-items:center;justify-content:space-between;gap:25px;color:#fff}.closing-box h2{color:#fff;font-size:29px}.closing-box p{color:#d7c9dc;margin-top:6px}
        .site-footer{background:#302137;color:#d9cedd;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:45px}.footer-brand{font-size:19px;font-weight:800;color:#fff}.footer-brand p{font-size:13px;color:#bcaec1;font-weight:400;margin-top:12px;max-width:300px}.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px}.footer-col a{display:block;color:#bcaec1;font-size:13px;margin:8px 0;transition:.2s}.footer-col a:hover{color:#fff}.copyright{border-top:1px solid #4d3c53;margin-top:40px;padding-top:20px;font-size:12px;color:#a99bad;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 8px}.hero-grid{gap:35px}.intro-grid,.download-grid{gap:40px}.matrix-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){.site-header{height:68px}.header-inner{gap:12px}.logo{font-size:15px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav.show{display:flex}.nav a{padding:12px}.header-action{padding:9px 12px;font-size:13px}.hero{padding:60px 0}.hero-grid,.intro-grid,.hall-grid,.download-grid,.guide-grid,.updates-grid,.security-grid{grid-template-columns:1fr}.hero-art{min-height:330px;margin-top:10px}.screen{width:min(365px,90vw)}section{padding:62px 0}.trust-grid{grid-template-columns:repeat(2,1fr)}.play-list{grid-template-columns:1fr}.play-card:first-child{grid-row:auto}.closing-box{padding:30px;display:block}.closing-box .btn{margin-top:20px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:520px){.container{width:min(100% - 32px,var(--container))}.logo{font-size:14px}.logo-mark{width:29px;height:27px}.header-action{display:none}h1{font-size:35px;letter-spacing:-1px}.hero-copy p{font-size:15px}.hero-actions .btn{width:100%}.hero-art{transform:scale(.9);margin-left:-15px;margin-right:-15px}.signal{right:0;bottom:2%}.trust-grid{gap:12px}.trust-item{align-items:flex-start}.section-head{display:block}.section-head p{margin-top:12px}.play-card{padding:20px}.version-box{gap:14px}.update-item{grid-template-columns:1fr;gap:2px}.matrix-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
            --ink:#292331;
            --muted:#706a78;
            --purple:#5a376d;
            --purple-deep:#392243;
            --purple-soft:#eee7f1;
            --orange:#ed794e;
            --orange-dark:#cc5e38;
            --cream:#fbf9f6;
            --warm:#f5efe9;
            --line:#e8e0e5;
            --white:#fff;
            --shadow:0 14px 38px rgba(57,34,67,.08);
            --shadow-soft:0 8px 22px rgba(57,34,67,.06);
            --radius:16px;
            --container:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);font-size:15px;line-height:1.8}
        a{color:inherit;text-decoration:none}
        a:hover{color:var(--purple)}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(237,121,78,.48);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{height:78px;background:rgba(251,249,246,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .header-inner{height:100%;display:flex;align-items:center;gap:32px}
        .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.3px}
        .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft);flex:none}
        .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--orange);border-radius:50%}
        .logo-mark:before{width:6px;height:6px;left:8px;top:10px;box-shadow:11px 0 0 var(--purple)}
        .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px}
        .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
        .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
        .header-action,.btn-primary{color:#fff;background:var(--purple)}
        .header-action:hover,.btn-primary:hover{color:#fff;background:var(--purple-deep);transform:translateY(-2px)}
        .btn-orange{background:var(--orange);color:#fff}
        .btn-orange:hover{color:#fff;background:var(--orange-dark);transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}
        .btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
        .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px;padding:5px}
        .article-hero{padding:62px 0 54px;background:linear-gradient(130deg,#fbf9f6 42%,#f1e9f3 100%);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:24px}
        .breadcrumb a{color:var(--purple)}
        .breadcrumb .separator{color:#b7aeba}
        .article-heading{max-width:900px}
        .eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:1.5px}
        .article-heading h1{font-size:clamp(34px,4.5vw,56px);line-height:1.25;letter-spacing:-1.5px;margin:10px 0 20px;color:var(--purple-deep);overflow-wrap:anywhere}
        .article-summary{max-width:820px;color:var(--muted);font-size:17px;margin:0}
        .article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:25px;color:var(--muted);font-size:13px}
        .meta-item{display:inline-flex;align-items:center;gap:7px}
        .meta-dot{width:7px;height:7px;border-radius:50%;background:var(--orange)}
        .article-section{padding:64px 0}
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:72px;align-items:start}
        .article-card{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:clamp(25px,4vw,54px);box-shadow:var(--shadow-soft);min-width:0}
        .article-content{font-size:16px;line-height:2;color:var(--ink)}
        .article-content h2{font-size:28px;line-height:1.35;color:var(--purple-deep);margin:38px 0 15px}
        .article-content h3{font-size:21px;line-height:1.45;color:var(--purple);margin:30px 0 11px}
        .article-content p{margin:0 0 19px}
        .article-content ul,.article-content ol{padding-left:25px;margin:15px 0 24px}
        .article-content li{margin:7px 0}
        .article-content blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--orange);background:var(--warm);color:#5f5663;border-radius:0 12px 12px 0}
        .article-content img{border-radius:14px;margin:25px auto}
        .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
        .article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
        .article-content th{background:var(--purple-soft);color:var(--purple-deep)}
        .article-content code{background:#f4eef5;color:var(--purple-deep);padding:2px 6px;border-radius:5px}
        .article-content pre{background:var(--purple-deep);color:#fff;padding:18px;border-radius:12px;overflow:auto;font-size:13px}
        .article-content a{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px}
        .empty-state{padding:35px 10px;text-align:center;color:var(--muted)}
        .empty-state strong{display:block;font-size:22px;color:var(--purple-deep);margin-bottom:7px}
        .side-panel{position:sticky;top:105px}
        .side-box{padding:22px;background:var(--purple-soft);border-radius:16px;border:1px solid #dfd2e4;margin-bottom:17px}
        .side-box h3{font-size:16px;color:var(--purple-deep);margin:0 0 12px}
        .side-box p{font-size:13px;color:var(--muted);margin:0}
        .side-links{list-style:none;margin:0;padding:0}
        .side-links li{border-bottom:1px solid rgba(90,55,109,.13);padding:9px 0;font-size:13px}
        .side-links li:last-child{border-bottom:0}
        .side-links a{color:var(--purple)}
        .reading-strip{padding:30px 34px;background:var(--warm);border-radius:18px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .reading-strip h2{font-size:22px;color:var(--purple-deep);margin:0 0 4px}
        .reading-strip p{color:var(--muted);margin:0;font-size:14px}
        .article-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}
        .action-section{padding:0 0 82px}
        .action-panel{background:var(--purple-deep);color:#fff;border-radius:22px;padding:38px 46px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .action-panel h2{font-size:27px;margin:0 0 7px}
        .action-panel p{color:#dfd1e4;margin:0}
        .site-footer{background:#302538;color:#e8deeb;padding:58px 0 0}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding-bottom:45px}
        .footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:13px}
        .footer-grid p{color:#bcaec1;max-width:310px;font-size:14px;margin:0}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h4{color:#fff;font-size:15px;margin:0 0 8px}
        .footer-col a{color:#bcaec1;font-size:13px;transition:.2s}
        .footer-col a:hover{color:#fff;transform:translateX(2px)}
        .copyright{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;display:flex;justify-content:space-between;gap:15px;color:#a99aaa;font-size:12px;flex-wrap:wrap}
        @media (max-width:1024px){
            .header-inner{gap:15px}
            .nav a{padding:8px 8px;font-size:13px}
            .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:35px}
            .footer-grid{gap:25px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .site-header{height:70px}
            .header-inner{position:relative}
            .logo{font-size:16px}
            .menu-toggle{display:block;order:3}
            .header-action{padding:9px 12px;font-size:13px;margin-left:auto}
            .nav{display:none;position:absolute;top:61px;left:0;right:0;margin:0;padding:10px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}
            .nav a{padding:12px 14px}
            .article-hero{padding:42px 0 38px}
            .article-heading h1{font-size:38px}
            .article-layout{display:block}
            .side-panel{position:static;margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
            .side-box{margin:0}
            .reading-strip,.action-panel{display:block;padding:26px}
            .article-actions{margin-top:20px}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media (max-width:520px){
            .container{width:calc(100% - 28px)}
            .logo{max-width:185px;white-space:normal;line-height:1.25}
            .logo-mark{width:30px;height:27px}
            .header-action{font-size:12px;padding:8px 10px}
            .article-heading h1{font-size:32px;letter-spacing:-.8px}
            .article-summary{font-size:15px}
            .article-card{padding:20px 17px;border-radius:15px}
            .article-content{font-size:15px}
            .article-content h2{font-size:24px}
            .article-content h3{font-size:19px}
            .side-panel{display:block}
            .side-box{margin-bottom:14px}
            .btn{width:100%}
            .article-actions{display:grid;grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .copyright{display:block}
            .copyright span{display:block;margin-top:5px}
        }

/* roulang page: category1 */
:root{
        --ink:#292331;--muted:#706a78;--purple:#5a376d;--purple-deep:#392243;
        --purple-soft:#eee7f1;--orange:#ed794e;--orange-dark:#cc5e38;
        --cream:#fbf9f6;--warm:#f5efe9;--line:#e8e0e5;--white:#fff;
        --shadow:0 14px 38px rgba(57,34,67,.08);--radius:16px;--container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);font-size:15px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(251,249,246,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:35px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.3px}
    .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft)}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%}
    .logo-mark:before{width:6px;height:6px;left:8px;top:10px;background:var(--orange);box-shadow:11px 0 0 var(--purple)}
    .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px;background:var(--orange)}
    .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
    .header-action,.btn-primary{color:#fff;background:var(--purple)}
    .header-action:hover,.btn-primary:hover{background:var(--purple-deep);transform:translateY(-2px);color:#fff}
    .btn-orange{background:var(--orange);color:#fff}
    .btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px);color:#fff}
    .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}
    .btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
    .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px}
    .page-intro{padding:42px 0 64px;background:linear-gradient(125deg,#fbf9f6 45%,#f1e9f3 100%)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:35px}
    .crumbs a{color:var(--purple)}
    .crumbs span{padding:0 9px;color:#b0a7b0}
    .intro-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:1.5px}
    h1{font-size:clamp(40px,5vw,58px);line-height:1.2;letter-spacing:-1.5px;margin:10px 0 20px;color:var(--purple-deep)}
    h2{font-size:32px;line-height:1.3;margin:0 0 16px;color:var(--purple-deep)}
    h3{font-size:19px;line-height:1.4;margin:0 0 8px}
    .intro-copy{font-size:17px;color:var(--muted);max-width:700px}
    .intro-note{background:var(--purple-deep);color:#fff;border-radius:22px;padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .intro-note:after{content:"PG";position:absolute;right:20px;bottom:-25px;color:rgba(255,255,255,.08);font-weight:900;font-size:110px}
    .intro-note strong{display:block;font-size:25px;margin-bottom:8px}
    .intro-note p{margin:0;color:#e9dfea;font-size:14px}
    section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
    .section-head p{color:var(--muted);max-width:560px;margin:0}
    .overview{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .overview-item{background:#fff;border:1px solid var(--line);padding:23px;border-radius:14px;min-height:150px}
    .overview-item b{display:block;font-size:16px;color:var(--purple);margin-bottom:8px}
    .overview-item span{display:block;color:var(--muted);font-size:14px}
    .download-panel{background:var(--purple-deep);border-radius:24px;padding:52px;color:#fff;display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:center;overflow:hidden}
    .device{height:350px;width:190px;margin:auto;border:8px solid #21152a;border-radius:30px;background:#f7f2f8;box-shadow:18px 20px 0 rgba(0,0,0,.13);padding:22px 12px;color:var(--purple)}
    .device-top{height:9px;width:55px;margin:0 auto 30px;background:#d7c7da;border-radius:10px}
    .device-card{background:var(--purple);color:#fff;border-radius:12px;padding:16px 10px;margin-bottom:12px;font-size:12px}
    .device-line{height:10px;background:#dbcfe0;border-radius:8px;margin:12px 4px}
    .download-panel h2{color:#fff}
    .download-panel p{color:#e5dce8}
    .download-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:25px 0}
    .meta-box{border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:13px 15px}
    .meta-box small{display:block;color:#cfc1d3;font-size:12px}.meta-box b{font-size:15px}
    .steps-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
    .step{display:flex;gap:16px;padding:17px 0;border-bottom:1px solid var(--line)}
    .step:last-child{border-bottom:0}
    .step-no{width:30px;height:30px;flex:none;border-radius:50%;background:var(--orange);color:#fff;text-align:center;line-height:30px;font-weight:800}
    .step p{margin:2px 0 0;color:var(--muted);font-size:14px}
    .ios-section{background:var(--warm)}
    .ios-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:start}
    .ios-row{display:flex;justify-content:space-between;padding:15px 0;border-bottom:1px solid #ddd2ca}
    .ios-row span{color:var(--muted)}
    .tip-box{background:#fff7f1;border-left:4px solid var(--orange);padding:23px 26px;border-radius:0 14px 14px 0;color:var(--muted)}
    .updates{display:grid;grid-template-columns:.72fr 1.28fr;gap:65px}
    .update-list{border-top:1px solid var(--line)}
    .update-item{display:grid;grid-template-columns:100px 1fr;gap:22px;padding:21px 0;border-bottom:1px solid var(--line)}
    .update-date{font-size:13px;color:var(--orange-dark);font-weight:700}
    .update-item p{font-size:14px;color:var(--muted);margin:3px 0 7px}
    .tag{display:inline-block;padding:3px 9px;border-radius:20px;background:var(--purple-soft);color:var(--purple);font-size:12px;margin-right:5px}
    .empty-state{padding:28px 0;color:var(--muted)}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 5px;font-weight:700;cursor:pointer}
    .faq-q span{font-size:24px;color:var(--orange);transition:.2s}
    .faq-a{display:none;color:var(--muted);padding:0 40px 20px 5px;font-size:14px}
    .faq-item.open .faq-a{display:block}.faq-item.open .faq-q span{transform:rotate(45deg)}
    .notice{background:var(--purple-soft);border-radius:20px;padding:32px;display:flex;justify-content:space-between;gap:30px;align-items:center}
    .notice p{color:var(--muted);margin:6px 0 0}
    .site-footer{background:#2e2036;color:#fff;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{font-size:19px;font-weight:800;margin-bottom:12px}
    .site-footer p{color:#c9bdcc;font-size:13px;max-width:300px}
    .footer-col{display:flex;flex-direction:column;gap:7px}
    .footer-col h4{font-size:14px;color:#fff;margin:0 0 8px}.footer-col a{font-size:13px;color:#c9bdcc;transition:.2s}.footer-col a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#b8aaba;font-size:12px}
    :focus-visible{outline:3px solid rgba(237,121,78,.55);outline-offset:3px}
    @media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 8px}.header-inner{gap:14px}.download-panel{gap:35px}.overview{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){
        .container{width:min(var(--container),calc(100% - 34px))}.site-header{height:70px}.logo{font-size:16px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 17px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav.show{display:flex}.nav a{padding:12px 14px}.header-action{display:none}
        .intro-layout,.download-panel,.ios-grid,.updates,.steps-grid{grid-template-columns:1fr;gap:30px}section{padding:58px 0}.page-intro{padding:30px 0 52px}h1{font-size:42px}.intro-note{max-width:520px}.download-panel{padding:32px 24px}.download-panel .device{height:300px}.section-head{display:block}.section-head p{margin-top:10px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}}
    @media(max-width:520px){.container{width:calc(100% - 30px)}h1{font-size:34px;letter-spacing:-.8px}h2{font-size:27px}.overview{grid-template-columns:1fr}.download-meta{grid-template-columns:1fr}.update-item{grid-template-columns:1fr;gap:4px}.notice{display:block;padding:25px}.notice .btn{margin-top:18px;width:100%}.footer-grid{grid-template-columns:1fr}.footer-col{gap:5px}.device{transform:scale(.9)}}

/* roulang page: category2 */
:root{
        --ink:#292331;--muted:#706a78;--purple:#5a376d;--purple-deep:#392243;
        --purple-soft:#eee7f1;--orange:#ed794e;--orange-dark:#cc5e38;
        --cream:#fbf9f6;--warm:#f5efe9;--line:#e8e0e5;--white:#fff;
        --shadow:0 14px 38px rgba(57,34,67,.08);--radius:16px;--container:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);font-size:15px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus{outline:3px solid rgba(237,121,78,.35);outline-offset:3px}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(251,249,246,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:32px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.3px}
    .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft)}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--orange);border-radius:50%}
    .logo-mark:before{width:6px;height:6px;left:8px;top:10px;box-shadow:11px 0 0 var(--purple)}
    .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px}
    .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
    .header-action,.btn-primary{color:#fff;background:var(--purple)}
    .header-action:hover,.btn-primary:hover{background:var(--purple-deep);transform:translateY(-2px)}
    .btn-orange{background:var(--orange);color:#fff}
    .btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}
    .btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
    .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px}
    .page-head{padding:58px 0 55px;background:linear-gradient(135deg,#f3ebf5 0%,#fbf9f6 67%);border-bottom:1px solid var(--line)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:22px}
    .crumbs a{color:var(--purple)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,54px);line-height:1.25;letter-spacing:-1.5px;margin-bottom:18px;color:var(--purple-deep)}
    h2{font-size:clamp(26px,3vw,34px);line-height:1.3;letter-spacing:-.7px;margin-bottom:14px}
    h3{font-size:19px;line-height:1.4;margin-bottom:8px}
    .page-lead{max-width:720px;color:var(--muted);font-size:17px;margin-bottom:0}
    section{padding:78px 0}
    .section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:1.5px;margin-bottom:10px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
    .section-head p{color:var(--muted);max-width:560px;margin-bottom:0}
    .intro-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:stretch}
    .intro-copy{padding:32px;border:1px solid var(--line);border-radius:20px;background:#fff}
    .intro-copy p{color:var(--muted);margin-bottom:0}
    .scene-panel{padding:32px;border-radius:20px;background:var(--purple-deep);color:#fff;position:relative;overflow:hidden}
    .scene-panel:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-40px;bottom:-75px}
    .scene-panel p{color:#d9cddd;margin-bottom:0}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:30px}
    .play-feature{padding:34px;border-radius:20px;background:var(--purple-soft);min-height:285px}
    .play-feature p,.play-card p,.hall-note p{color:var(--muted);font-size:14px}
    .play-number{font-size:42px;color:var(--orange);font-weight:800;line-height:1;margin-bottom:22px}
    .side-stack{display:grid;gap:16px}
    .play-card{padding:23px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.2s}
    .play-card:hover{border-color:#bca7c5;transform:translateY(-3px);box-shadow:var(--shadow)}
    .tag{display:inline-block;padding:4px 10px;border-radius:20px;background:var(--warm);color:var(--purple);font-size:12px;margin:3px 5px 0 0}
    .hall-section{background:var(--warm)}
    .hall-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
    .hall-window{background:var(--purple-deep);border-radius:18px;padding:20px;box-shadow:var(--shadow);color:#fff}
    .window-bar{display:flex;gap:7px;margin-bottom:20px}
    .window-bar i{width:9px;height:9px;border-radius:50%;background:var(--orange);display:block}
    .window-bar i:nth-child(2){background:#cbb5d2}.window-bar i:nth-child(3){background:#796184}
    .window-body{display:grid;grid-template-columns:150px 1fr;gap:15px}
    .window-menu,.window-main{border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:15px}
    .window-menu span{display:block;color:#d9cddd;font-size:12px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.1)}
    .window-menu span:first-child{color:#fff}
    .window-main{background:#50315f}
    .fake-line{height:10px;background:#745181;border-radius:10px;margin:10px 0}
    .fake-line.short{width:55%}.fake-line.orange{width:72%;background:var(--orange)}
    .hall-note{padding:10px 0}
    .hall-note p{margin-bottom:24px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
    .step{padding:25px 24px 23px;border-top:3px solid var(--orange);background:#fff;border-radius:0 0 14px 14px;box-shadow:0 5px 20px rgba(57,34,67,.04)}
    .step strong{display:flex;align-items:center;gap:10px;color:var(--purple);margin-bottom:9px}
    .step strong:before{counter-increment:step;content:"0" counter(step);font-size:13px;color:var(--orange-dark)}
    .step p{color:var(--muted);font-size:14px;margin-bottom:0}
    .comparison{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
    .comparison th,.comparison td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line)}
    .comparison th{color:var(--purple);font-size:14px;background:var(--purple-soft)}
    .comparison td{color:var(--muted);font-size:14px}
    .comparison tr:last-child td{border-bottom:0}
    .updates{background:#fff}
    .update-list{border-top:1px solid var(--line)}
    .update-item{display:grid;grid-template-columns:100px 1fr auto;gap:20px;padding:21px 0;border-bottom:1px solid var(--line);align-items:start}
    .update-meta{font-size:12px;color:var(--muted);margin-top:4px}
    .update-item p{font-size:14px;color:var(--muted);margin:3px 0 0}
    .update-link{color:var(--purple);font-weight:700;font-size:13px;white-space:nowrap}
    .empty-state{padding:28px;text-align:center;border:1px dashed #cdbed1;border-radius:14px;color:var(--muted)}
    .faq-list{max-width:860px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{display:flex;justify-content:space-between;align-items:center;padding:19px 5px;font-weight:700;cursor:pointer}
    .faq-q span{font-size:23px;color:var(--orange);transition:.2s}
    .faq-a{display:none;color:var(--muted);padding:0 38px 20px 5px;font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:42px 48px;border-radius:22px;background:var(--purple-deep);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta p{color:#d9cddd;margin:7px 0 0}
    .site-footer{padding:58px 0 22px;background:#302033;color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-brand{font-size:19px;font-weight:800;margin-bottom:12px}
    .site-footer p,.footer-col a{color:#c9bdcc;font-size:13px}
    .site-footer p{max-width:300px}
    .footer-col{display:flex;flex-direction:column;gap:7px}
    .footer-col h4{font-size:14px;margin-bottom:8px;color:#fff}
    .footer-col a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#a99aaa;font-size:12px}
    @media(max-width:1024px){.nav a{padding:8px 8px}.header-inner{gap:15px}.feature-layout,.intro-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}
    @media(max-width:768px){
        .container{width:min(var(--container),calc(100% - 34px))}
        .site-header{height:70px}.header-inner{justify-content:space-between}.menu-toggle{display:block}
        .nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px 17px;background:var(--cream);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
        .nav.show{display:flex}.nav a{text-align:center;padding:11px}
        .header-action{padding:9px 13px;font-size:13px}.logo{font-size:15px}
        .page-head{padding:42px 0}.page-lead{font-size:15px}
        section{padding:58px 0}.hall-grid,.steps{grid-template-columns:1fr}.hall-grid{gap:30px}
        .window-body{grid-template-columns:1fr 1.5fr}.update-item{grid-template-columns:75px 1fr}.update-link{grid-column:2}
        .cta{padding:30px 25px;display:block}.cta .btn{margin-top:22px}
        .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
    }
    @media(max-width:520px){
        h1{font-size:34px}.section-head{display:block}.section-head p{margin-top:10px}
        .intro-copy,.scene-panel,.play-feature{padding:24px}.window-body{grid-template-columns:1fr}
        .window-menu{display:none}.comparison th,.comparison td{padding:13px 12px;font-size:12px}
        .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
    }

/* roulang page: category3 */
:root{
            --ink:#292331;
            --muted:#706a78;
            --purple:#5a376d;
            --purple-deep:#392243;
            --purple-soft:#eee7f1;
            --orange:#ed794e;
            --orange-dark:#cc5e38;
            --cream:#fbf9f6;
            --warm:#f5efe9;
            --line:#e8e0e5;
            --white:#fff;
            --shadow:0 14px 38px rgba(57,34,67,.08);
            --radius:16px;
            --container:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--cream);font-size:15px;line-height:1.8}
        h1,h2,h3,h4,p{margin:0}
        h1,h2,h3,h4{line-height:1.3}
        h1{font-size:clamp(36px,5vw,56px);letter-spacing:-1.8px}
        h2{font-size:clamp(27px,3vw,35px);letter-spacing:-.8px}
        h3{font-size:19px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(237,121,78,.45);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{height:78px;background:rgba(251,249,246,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .header-inner{height:100%;display:flex;align-items:center;gap:35px}
        .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-weight:800;white-space:nowrap;font-size:18px;letter-spacing:-.3px}
        .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft)}
        .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--orange);border-radius:50%}
        .logo-mark:before{width:6px;height:6px;left:8px;top:10px;box-shadow:11px 0 0 var(--purple)}
        .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px}
        .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
        .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
        .header-action,.btn-primary{color:#fff;background:var(--purple)}
        .header-action:hover,.btn-primary:hover{background:var(--purple-deep);transform:translateY(-2px)}
        .btn-orange{background:var(--orange);color:#fff}
        .btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}
        .btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
        .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px}
        .page-top{padding:38px 0 22px;background:var(--warm)}
        .breadcrumb{font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:center}
        .breadcrumb a:hover{color:var(--purple)}
        .breadcrumb strong{color:var(--purple)}
        .news-hero{padding:28px 0 76px;background:var(--warm)}
        .news-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{color:var(--orange-dark);font-weight:800;font-size:13px;letter-spacing:1.5px}
        .news-hero h1{margin:15px 0 20px;max-width:650px}
        .news-hero p{color:var(--muted);font-size:17px;max-width:630px}
        .hero-note{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px}
        .tag{display:inline-block;padding:4px 10px;border-radius:20px;background:#fff;color:var(--purple);font-size:12px;border:1px solid #e2d6e5}
        .signal-board{background:var(--purple-deep);border-radius:24px;padding:30px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .signal-board:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-55px;top:-60px}
        .board-title{font-size:17px;font-weight:700;margin-bottom:24px}
        .signal-row{display:flex;justify-content:space-between;align-items:center;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.15)}
        .signal-row:last-child{border-bottom:0}
        .signal-row small{color:#d8cddd;display:block;font-size:12px}
        .signal-row b{font-size:16px}
        .signal-dot{width:10px;height:10px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(237,121,78,.16)}
        section{padding:78px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head p{color:var(--muted);max-width:570px}
        .filter-bar{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:16px 20px;background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:34px}
        .filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
        .filter-tabs button{padding:8px 14px;border-radius:8px;background:var(--cream);color:var(--muted);font-size:13px;transition:.2s}
        .filter-tabs button:hover,.filter-tabs button.active{background:var(--purple);color:#fff}
        .filter-search{color:var(--muted);font-size:13px}
        .news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
        .news-item{background:#fff;border:1px solid var(--line);padding:24px;border-radius:16px;transition:.2s}
        .news-item:hover{border-color:#bca7c5;transform:translateY(-3px);box-shadow:var(--shadow)}
        .news-item.featured{background:var(--purple);color:#fff;padding:34px;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;min-height:330px}
        .news-item.featured p,.news-item.featured .news-meta{color:#ddd1e2}
        .news-item.featured .read-link{color:#fff;border-color:rgba(255,255,255,.35)}
        .news-item h3{margin:12px 0 8px}
        .news-item p{color:var(--muted);font-size:14px;line-height:1.8}
        .news-meta{color:var(--muted);font-size:12px;display:flex;gap:12px;flex-wrap:wrap}
        .news-label{color:var(--orange-dark);font-weight:700;font-size:12px}
        .read-link{display:inline-flex;margin-top:18px;color:var(--purple);font-weight:700;font-size:13px;border-bottom:1px solid #d9cddd;padding-bottom:2px}
        .empty-state{grid-column:1/-1;text-align:center;padding:48px 20px;border:1px dashed #cfbfd3;border-radius:16px;color:var(--muted);background:#fff}
        .version-section{background:var(--purple-soft)}
        .version-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
        .version-intro p{color:var(--muted);margin-top:16px}
        .version-list{border-top:1px solid #d8c8dc}
        .version-item{display:grid;grid-template-columns:110px 1fr;gap:22px;padding:20px 0;border-bottom:1px solid #d8c8dc}
        .version-badge{align-self:start;background:#fff;color:var(--purple);border-radius:8px;padding:5px 9px;font-size:12px;font-weight:700;text-align:center}
        .version-item p{color:var(--muted);font-size:14px;margin-top:5px}
        .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .notice-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:16px}
        .notice-card .icon{width:38px;height:38px;border-radius:11px;background:#fbe4db;color:var(--orange-dark);display:grid;place-items:center;font-weight:800;margin-bottom:18px}
        .notice-card p{color:var(--muted);font-size:14px;margin-top:9px}
        .read-panel{background:#f3ebe4;border-radius:20px;padding:34px 40px;display:flex;justify-content:space-between;gap:30px;align-items:center}
        .read-panel p{color:var(--muted);max-width:700px;margin-top:8px}
        .faq-list{max-width:900px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:20px 5px;font-weight:700;cursor:pointer}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary span{font-size:23px;color:var(--orange);transition:.2s}
        .faq-item[open] summary span{transform:rotate(45deg)}
        .faq-answer{color:var(--muted);padding:0 40px 20px 5px;font-size:14px}
        .cta{padding:58px 0}
        .cta-box{background:var(--purple-deep);color:#fff;border-radius:20px;padding:35px 42px;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-box p{color:#d8cddd;margin-top:8px}
        .site-footer{background:#302034;color:#eee3ef;padding:58px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        .footer-brand{font-weight:800;font-size:19px;margin-bottom:13px}
        .site-footer p{color:#bcaec0;font-size:13px;max-width:290px}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h4{font-size:14px;color:#fff;margin-bottom:6px}
        .footer-col a{font-size:13px;color:#bcaec0;transition:.2s}
        .footer-col a:hover{color:#fff}
        .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:#a99aaa;font-size:12px}
        @media(max-width:1024px){
            .header-inner{gap:15px}.nav a{padding:8px 8px}.header-action{padding:10px 13px}
            .news-hero-grid,.news-layout,.version-grid{gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 36px))}
            .site-header{height:68px}.menu-toggle{display:block;margin-left:auto}
            .nav{display:none;position:absolute;left:18px;right:18px;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.open{display:flex}.nav a{padding:12px 14px}
            .header-action{display:none}.logo{font-size:16px}
            .news-hero-grid,.news-layout,.version-grid{grid-template-columns:1fr}
            .news-hero{padding-bottom:55px}.news-item.featured{grid-row:auto;min-height:260px}
            .filter-bar{align-items:flex-start;flex-direction:column}.filter-search{padding-left:3px}
            .notice-grid{grid-template-columns:1fr 1fr}
            .read-panel,.cta-box{align-items:flex-start;flex-direction:column;padding:30px}
            .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
            .footer-grid>div:first-child{grid-column:1/-1}
            .copyright{flex-direction:column}
        }
        @media(max-width:520px){
            h1{font-size:35px}.news-hero p{font-size:15px}
            section{padding:58px 0}.notice-grid{grid-template-columns:1fr}
            .version-item{grid-template-columns:78px 1fr;gap:14px}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}
            .copyright{margin-top:30px}.cta-box{padding:25px 22px}.read-panel{padding:25px 22px}
            .btn{width:100%}
        }

/* roulang page: category4 */
:root{
        --ink:#292331;--muted:#706a78;--purple:#5a376d;--purple-deep:#392243;
        --purple-soft:#eee7f1;--orange:#ed794e;--orange-dark:#cc5e38;
        --cream:#fbf9f6;--warm:#f5efe9;--line:#e8e0e5;--white:#fff;
        --shadow:0 14px 38px rgba(57,34,67,.08);--radius:16px;--container:1220px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--cream);font:15px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.3;letter-spacing:-.5px}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(251,249,246,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:100%;display:flex;align-items:center;gap:35px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--purple-deep);font-size:18px;font-weight:800;white-space:nowrap}
    .logo-mark{width:34px;height:30px;border:2px solid var(--purple);border-radius:9px;position:relative;background:var(--purple-soft)}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border-radius:50%;background:var(--orange)}
    .logo-mark:before{width:6px;height:6px;left:8px;top:10px;box-shadow:11px 0 0 var(--purple)}
    .logo-mark:after{width:5px;height:5px;right:7px;bottom:6px}
    .nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav a{padding:8px 13px;border-radius:9px;color:#655c68;font-size:14px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--purple);background:var(--purple-soft)}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;transition:.2s}
    .header-action,.btn-primary{color:#fff;background:var(--purple)}
    .header-action:hover,.btn-primary:hover{background:var(--purple-deep);transform:translateY(-2px)}
    .btn-orange{background:var(--orange);color:#fff}.btn-orange:hover{background:var(--orange-dark);transform:translateY(-2px)}
    .btn-light{background:#fff;color:var(--purple);border:1px solid #d9cddd}.btn-light:hover{background:var(--purple-soft);border-color:var(--purple)}
    .menu-toggle{display:none;background:none;color:var(--purple);font-size:25px}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(237,121,78,.45);outline-offset:3px}
    .page-hero{padding:68px 0 62px;background:linear-gradient(125deg,#fbf9f6 38%,#f1e9f3 100%)}
    .crumbs{color:var(--muted);font-size:13px;margin-bottom:24px}.crumbs a:hover{color:var(--purple)}
    .crumbs b{color:var(--purple);font-weight:600}
    .hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
    .eyebrow,.section-kicker{color:var(--orange-dark);font-size:13px;font-weight:800;letter-spacing:1.5px}
    h1{font-size:clamp(38px,5vw,56px);margin:13px 0 20px;color:var(--purple-deep)}
    .lead{max-width:680px;color:var(--muted);font-size:17px}
    .hero-note{padding:25px;border:1px solid #dacbdf;border-radius:20px;background:rgba(255,255,255,.65)}
    .hero-note strong{display:block;color:var(--purple);font-size:20px;margin-bottom:7px}
    .hero-note p{margin:0;color:var(--muted);font-size:14px}
    section{padding:78px 0}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:30px}
    .section-head h2{font-size:32px;margin:8px 0 0;color:var(--purple-deep)}
    .section-head p{max-width:520px;color:var(--muted);margin:0}
    .guide-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:68px}
    .index-panel{background:var(--purple-deep);color:#fff;border-radius:22px;padding:34px;position:sticky;top:105px;height:max-content}
    .index-panel h3{font-size:23px;margin-bottom:22px}.index-panel p{color:#d9cddd;font-size:14px}
    .index-list{list-style:none;padding:0;margin:28px 0 0}.index-list li{border-top:1px solid rgba(255,255,255,.16)}
    .index-list a{display:flex;gap:15px;padding:15px 0;color:#f7effa}.index-list a:hover{color:#ffc1a9}
    .index-list em{font-style:normal;color:#f2a085;font-weight:800}
    .guide-steps{display:grid;gap:16px}.guide-step{display:grid;grid-template-columns:54px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
    .step-no{width:42px;height:42px;border-radius:13px;background:var(--orange);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px}
    .guide-step h3{font-size:19px;margin:0 0 6px}.guide-step p{color:var(--muted);margin:0;font-size:14px}
    .security-section{background:var(--warm)}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .security-card{padding:30px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .security-card.warning{background:#fff5ef;border-color:#f2cbbd}.security-card h3{font-size:20px;color:var(--purple-deep)}
    .check-list{list-style:none;padding:0;margin:18px 0 0}.check-list li{padding:11px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
    .check-list li:before{content:"✓";color:var(--orange);font-weight:800;margin-right:10px}
    .diagnose{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
    .diagnose article{padding:29px}.diagnose article+article{border-left:1px solid var(--line);background:var(--purple-soft)}
    .diagnose h3{font-size:20px;color:var(--purple-deep)}.diagnose p{color:var(--muted);font-size:14px;margin-bottom:8px}
    .news-section{background:#fff}.news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:110px 1fr auto;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .news-date{color:var(--orange-dark);font-size:13px;font-weight:700}.news-type{font-size:12px;color:var(--muted)}
    .news-item h3{font-size:18px;margin:0 0 5px}.news-item p{color:var(--muted);font-size:14px;margin:0;max-width:680px}
    .news-link{color:var(--purple);font-weight:700;font-size:14px}.news-link:hover{color:var(--orange-dark)}
    .empty-state{padding:35px;text-align:center;color:var(--muted);border:1px dashed #d8cbd9;border-radius:15px;margin-top:20px}
    .faq-list{max-width:900px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}
    .faq-q{display:flex;justify-content:space-between;gap:20px;padding:20px 5px;font-weight:700;cursor:pointer;list-style:none}
    .faq-q::-webkit-details-marker{display:none}.faq-q span{color:var(--orange);font-size:23px;transition:.2s}
    details[open] .faq-q span{transform:rotate(45deg)}.faq-a{color:var(--muted);padding:0 38px 20px 5px;font-size:14px}
    .cta{padding:52px 0}.cta-box{background:var(--purple);color:#fff;border-radius:22px;padding:38px 44px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box h2{font-size:28px;margin:0 0 8px}.cta-box p{color:#e4d9e7;margin:0}.cta-box .btn{white-space:nowrap}
    .site-footer{padding:58px 0 24px;background:var(--purple-deep);color:#fff}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:38px}
    .footer-brand{font-size:19px;font-weight:800;margin-bottom:12px}.site-footer p{color:#d6c9da;font-size:14px;max-width:330px}
    .footer-col{display:flex;flex-direction:column;gap:8px}.footer-col h4{font-size:15px;margin:0 0 7px;color:#fff}.footer-col a{color:#d6c9da;font-size:14px}.footer-col a:hover{color:#ffc1a9}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:42px;padding-top:20px;color:#bcaec1;font-size:12px}
    @media(max-width:900px){.nav{gap:0}.nav a{padding:8px 8px}.hero-layout,.guide-layout{grid-template-columns:1fr;gap:35px}.index-panel{position:static}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.header-inner{gap:12px}.logo{font-size:15px}.logo-mark{width:30px;height:27px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.header-action{padding:9px 12px;font-size:13px}.page-hero{padding:48px 0}.section-head{display:block}.section-head p{margin-top:14px}.security-grid,.diagnose{grid-template-columns:1fr}.diagnose article+article{border-left:0;border-top:1px solid var(--line)}.news-item{grid-template-columns:1fr;gap:5px}.news-link{margin-top:8px}.cta-box{display:block;padding:30px 25px}.cta-box .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}}
    @media(max-width:520px){h1{font-size:34px}.section-head h2{font-size:27px}section{padding:58px 0}.hero-note,.security-card,.index-panel{padding:23px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}.logo{max-width:165px;white-space:normal;line-height:1.25}.header-action{font-size:12px;padding:8px 10px}.guide-step{grid-template-columns:42px 1fr;gap:13px}}