/* roulang page: index */
:root{
            --ink:#182235;
            --muted:#6f7b8e;
            --soft:#f5f8fc;
            --paper:#ffffff;
            --line:#e5ebf3;
            --primary:#4d5df5;
            --primary-dark:#3545d6;
            --mint:#30c6a5;
            --amber:#f6b84b;
            --violet:#8e73f2;
            --shadow:0 18px 55px rgba(39,57,91,.11);
            --shadow-sm:0 8px 25px rgba(39,57,91,.08);
            --radius:24px;
            --radius-sm:14px;
            --container:1180px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;-webkit-font-smoothing:antialiased}
        a{text-decoration:none;color:inherit}
        button{font:inherit;border:0;cursor:pointer}
        img{max-width:100%;display:block}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,235,243,.8)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--primary),#7c6cf4);display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(77,93,245,.25)}
        .brand-text{font-size:17px}
        .brand-text em{font-style:normal;color:var(--primary)}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{padding:10px 15px;border-radius:10px;color:#687488;font-size:14px;transition:.25s ease}
        .main-nav a:hover,.main-nav a.active{color:var(--primary);background:#eef0ff}
        .nav-action{padding:11px 18px;background:var(--ink);color:#fff;border-radius:12px;font-size:13px;font-weight:700;transition:.25s}
        .nav-action:hover{background:var(--primary);transform:translateY(-2px)}
        .hero{padding:80px 0 76px;background:linear-gradient(135deg,#f7f8ff 0%,#fff 55%,#eefbf9 100%);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--mint)}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.13;letter-spacing:-2.5px;margin:20px 0 24px;max-width:680px}
        h1 span{color:var(--primary)}
        .hero-copy{font-size:17px;color:var(--muted);max-width:590px}
        .actions{display:flex;gap:13px;align-items:center;flex-wrap:wrap;margin-top:34px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 22px;border-radius:13px;font-size:14px;font-weight:800;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(77,93,245,.22)}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 13px 27px rgba(77,93,245,.3)}
        .btn-light{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-light:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
        .hero-note{display:flex;gap:22px;margin-top:32px;color:#8a94a5;font-size:12px}
        .hero-note strong{display:block;color:var(--ink);font-size:14px}
        .visual-stage{position:relative;min-height:405px}
        .glow{position:absolute;width:330px;height:330px;right:15px;top:28px;background:#dce2ff;border-radius:50%;filter:blur(3px)}
        .screen{position:absolute;right:0;top:15px;width:88%;height:330px;background:#1c2740;border:9px solid #fff;border-radius:25px;box-shadow:var(--shadow);transform:rotate(3deg);overflow:hidden}
        .screen-top{height:42px;background:#263452;display:flex;align-items:center;padding:0 16px;gap:7px}
        .dot{width:8px;height:8px;border-radius:50%;background:#ff8a83}.dot:nth-child(2){background:#ffc95d}.dot:nth-child(3){background:#56d7b6}
        .screen-body{display:grid;grid-template-columns:110px 1fr;height:calc(100% - 42px)}
        .screen-side{background:#222e49;padding:18px 13px}.side-line{height:9px;background:#465475;border-radius:5px;margin-bottom:15px}.side-line.active{background:var(--mint);width:75%}
        .screen-content{padding:22px;background:linear-gradient(135deg,#27385a,#1b2540)}
        .screen-title{color:#fff;font-size:20px;font-weight:800}.screen-sub{color:#a8b4ce;font-size:11px;margin-top:2px}
        .game-panel{height:130px;margin-top:20px;border-radius:15px;background:linear-gradient(135deg,#625cf1,#2cbda5);position:relative;overflow:hidden}
        .game-panel:after{content:"PG";position:absolute;right:28px;bottom:-22px;font-size:110px;font-weight:900;color:rgba(255,255,255,.12)}
        .play-pill{position:absolute;left:18px;bottom:16px;background:#fff;color:var(--primary);padding:6px 12px;border-radius:20px;font-size:11px;font-weight:800}
        .floating-card{position:absolute;bottom:7px;left:0;background:#fff;border-radius:16px;padding:15px 17px;box-shadow:var(--shadow);width:185px}
        .floating-card small{color:var(--muted);font-size:11px}.floating-card b{display:block;margin-top:3px;font-size:16px}.status{color:#1aa785;font-size:11px;margin-top:5px}
        .section{padding:100px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.2;letter-spacing:-1.2px;margin-top:12px}
        .section-intro{max-width:490px;color:var(--muted);font-size:15px}
        .entry-strip{display:grid;grid-template-columns:1.25fr 1fr 1fr;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow-sm)}
        .entry{padding:29px 30px;min-height:155px;border-right:1px solid var(--line);transition:.25s;background:#fff}
        .entry:last-child{border:0}.entry:hover{background:#f8f9ff}
        .entry.featured{background:var(--primary);color:#fff}.entry.featured p{color:#dce1ff}.entry-icon{font-size:22px;margin-bottom:14px}.entry h3{font-size:19px;margin-bottom:6px}.entry p{font-size:13px;color:var(--muted)}
        .experience{background:var(--ink);color:#fff;border-radius:28px;padding:44px;position:relative;overflow:hidden}
        .experience:after{content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(255,255,255,.1);border-radius:50%;right:-80px;top:-130px}
        .experience-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:46px;align-items:center;position:relative;z-index:1}
        .experience .section-kicker{color:#aeb7ff}.experience h2{font-size:34px;line-height:1.25;margin:13px 0}.experience p{color:#aab5c9;font-size:14px}
        .steps-inline{display:flex;gap:10px;margin-top:27px}.step{display:flex;align-items:center;gap:9px;font-size:12px;color:#b8c3d5}.step-no{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:#34415f;color:#fff}.step:first-child .step-no{background:var(--mint);color:var(--ink)}
        .preview{background:#f8faff;border:1px solid #3b4969;padding:20px;border-radius:20px}.preview-bar{height:9px;width:90px;background:#53627f;border-radius:5px;margin-bottom:18px}.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.preview-tile{height:110px;border-radius:12px;background:linear-gradient(145deg,#7067ee,#41cdb0);position:relative}.preview-tile:nth-child(2){background:linear-gradient(145deg,#f5b84e,#e97580)}.preview-tile:nth-child(3){background:linear-gradient(145deg,#5797ed,#6d68d9)}.preview-tile:after{content:"试玩";position:absolute;bottom:9px;left:10px;color:#fff;font-size:11px;font-weight:700}
        .hall-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;grid-template-rows:180px 180px;gap:16px}.hall-card{border-radius:19px;position:relative;overflow:hidden;padding:22px;color:#fff;background:linear-gradient(135deg,#4b5df4,#9480ef)}.hall-card:nth-child(1){grid-row:span 2;background:linear-gradient(145deg,#243452,#5d62dc)}.hall-card:nth-child(2){background:linear-gradient(135deg,#30bea3,#4a8ee8)}.hall-card:nth-child(3){background:linear-gradient(135deg,#f3af43,#db6d7d)}.hall-card:nth-child(4){background:linear-gradient(135deg,#7866e5,#ba75d5)}
        .hall-card:after{content:"PG";position:absolute;right:-9px;bottom:-35px;color:rgba(255,255,255,.16);font-size:110px;font-weight:900}.hall-card h3,.hall-card p,.hall-card .tag{position:relative;z-index:1}.hall-card h3{font-size:20px}.hall-card p{font-size:12px;color:rgba(255,255,255,.78);max-width:220px}.tag{display:inline-block;padding:4px 9px;background:rgba(255,255,255,.17);border-radius:20px;font-size:11px;margin-top:14px}
        .device-section{background:var(--soft)}.device-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.device-card{background:#fff;border-radius:24px;padding:34px;display:grid;grid-template-columns:130px 1fr;gap:25px;align-items:center;box-shadow:var(--shadow-sm)}.phone{width:106px;height:188px;background:#202b45;border:6px solid #ced6e8;border-radius:23px;padding:12px 8px;box-shadow:0 10px 25px rgba(35,48,81,.2)}.phone-screen{height:100%;border-radius:13px;background:linear-gradient(155deg,#605ef2,#39c6a8);position:relative}.phone-screen:after{content:"PG";position:absolute;bottom:20px;left:18px;color:rgba(255,255,255,.7);font-size:35px;font-weight:900}.desktop-box{height:145px;border:7px solid #dbe2ee;border-radius:13px;background:#273653;padding:14px}.desktop-box div{height:8px;width:55px;background:#64728d;border-radius:4px;margin-bottom:15px}.desktop-box:after{content:"模拟器窗口";color:#b7c3d8;font-size:13px}.device-card h3{font-size:22px;margin-bottom:8px}.device-card p{font-size:13px;color:var(--muted)}.device-points{margin-top:15px;display:flex;gap:7px;flex-wrap:wrap}.device-points span{font-size:11px;background:#f0f3fa;color:#647087;padding:5px 9px;border-radius:8px}
        .download-box{display:grid;grid-template-columns:250px 1fr 210px;gap:38px;align-items:center;padding:42px;background:linear-gradient(120deg,#f0f2ff,#f3fffb);border-radius:27px;border:1px solid #e1e6fb}.app-preview{width:155px;height:215px;background:#202a45;border:8px solid #fff;border-radius:24px;box-shadow:var(--shadow);padding:13px}.app-preview-inner{height:100%;border-radius:14px;background:linear-gradient(145deg,#635df0,#30c5a5);padding:18px 10px;color:#fff;font-size:13px;font-weight:800}.app-preview-inner strong{display:block;font-size:30px;margin-top:40px}.download-box h2{font-size:31px;line-height:1.25;margin:10px 0}.download-box p{color:var(--muted);font-size:14px}.app-meta{display:flex;gap:18px;flex-wrap:wrap;margin:20px 0}.app-meta span{font-size:12px;color:var(--muted)}.app-meta b{display:block;color:var(--ink);font-size:14px}.qr{height:150px;border-radius:17px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:#9aa5b7;font-size:12px;text-align:center;padding:20px}.qr-code{width:72px;height:72px;background:repeating-linear-gradient(45deg,#28344c 0 4px,#fff 4px 8px);margin:auto;border:6px solid #fff;outline:1px solid #dfe5ee}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);padding-top:28px}.timeline-item{position:relative;padding:0 22px 0 0}.timeline-item:before{content:"";position:absolute;top:-34px;left:0;width:11px;height:11px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 6px #e9ebff}.timeline-item h3{font-size:17px;margin-bottom:8px}.timeline-item p{font-size:13px;color:var(--muted)}.timeline-item strong{display:inline-block;color:var(--primary);font-size:11px;margin-bottom:8px}
        .news-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}.news-feature{padding:29px;background:#f6f7ff;border-radius:21px}.news-feature h3{font-size:24px;line-height:1.35;margin:12px 0}.news-feature p{color:var(--muted);font-size:14px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:90px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news-date{font-size:12px;color:var(--primary);font-weight:800}.news-item h3{font-size:16px}.news-item p{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-item .tag{margin:0;color:#65728a;background:#f0f3f9}
        .feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feature-card{padding:25px 22px;border:1px solid var(--line);border-radius:18px;transition:.25s}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:#cfd5ff}.feature-number{color:var(--primary);font-size:12px;font-weight:900}.feature-card h3{font-size:17px;margin:14px 0 7px}.feature-card p{font-size:13px;color:var(--muted)}
        .faq-wrap{max-width:850px;margin:0 auto}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;cursor:pointer;padding:20px 4px;font-weight:700;display:flex;justify-content:space-between;gap:20px}.faq-item summary:after{content:"+";color:var(--primary);font-size:22px;font-weight:400}.faq-item[open] summary:after{content:"−"}.faq-item p{color:var(--muted);font-size:14px;padding:0 35px 20px 4px}.notice{display:flex;gap:20px;align-items:flex-start;padding:25px 30px;border-radius:18px;background:#fff8e9;border:1px solid #f5e4bb;color:#766238}.notice b{display:block;color:#5c4825;margin-bottom:4px}.notice p{font-size:13px}
        .final-cta{background:var(--primary);color:#fff;border-radius:25px;padding:38px 45px;display:flex;align-items:center;justify-content:space-between;gap:25px}.final-cta h2{font-size:28px}.final-cta p{color:#dfe3ff;font-size:14px;margin-top:5px}.final-cta .btn-light{border:0}
        .site-footer{background:#172137;color:#aeb8cb;padding:56px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}.footer-brand{color:#fff}.footer-brand p{max-width:350px;font-size:13px;margin-top:16px;color:#8f9bb0}.footer-links{display:flex;gap:55px}.footer-links h4{color:#fff;font-size:14px;margin-bottom:14px}.footer-links a{display:block;font-size:13px;margin:8px 0;color:#9eabc0;transition:.2s}.footer-links a:hover{color:#fff}.copyright{font-size:12px;padding-top:22px;color:#78869d}.copyright a{color:#aab5c8}
        :focus-visible{outline:3px solid rgba(77,93,245,.35);outline-offset:3px}
        @media(max-width:1024px){.hero-grid{gap:35px}.screen{width:94%}.download-box{grid-template-columns:180px 1fr 160px}.hall-grid{grid-template-columns:1.3fr 1fr 1fr}.feature-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.main-nav{display:none}.nav-action{display:none}.hero{padding:58px 0}.hero-grid,.experience-grid,.news-layout{grid-template-columns:1fr}.visual-stage{min-height:350px;margin-top:5px}.screen{width:90%;right:2%;height:285px}.floating-card{bottom:0}.section{padding:70px 0}.entry-strip{grid-template-columns:1fr}.entry{border-right:0;border-bottom:1px solid var(--line)}.experience{padding:30px 23px}.device-grid{grid-template-columns:1fr}.download-box{grid-template-columns:145px 1fr;gap:25px;padding:28px}.qr{grid-column:1/-1;height:95px}.qr-code{width:48px;height:48px}.timeline{grid-template-columns:repeat(2,1fr);gap:38px 15px}.timeline-item{padding-left:15px}.footer-top{display:block}.footer-links{margin-top:30px;gap:35px;flex-wrap:wrap}.final-cta{display:block;padding:30px}.final-cta .btn{margin-top:20px}}
        @media(max-width:520px){h1{font-size:39px;letter-spacing:-1.5px}.hero-copy{font-size:15px}.hero-note{gap:13px}.section-head{display:block}.section-intro{margin-top:15px}.hall-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:160px 160px}.hall-card:nth-child(1){grid-row:auto;grid-column:span 2}.hall-card h3{font-size:17px}.device-card{grid-template-columns:1fr;padding:25px}.phone,.desktop-box{margin:0 auto}.download-box{grid-template-columns:1fr;text-align:center}.app-preview{margin:auto}.app-meta{justify-content:center}.download-box .actions{justify-content:center}.news-item{grid-template-columns:65px 1fr}.news-item .tag{display:none}.feature-grid{grid-template-columns:1fr}.footer-links{gap:22px}.footer-links>div{min-width:100px}}

/* roulang page: article */
:root{
            --ink:#182235;
            --muted:#6f7b8e;
            --soft:#f5f8fc;
            --paper:#fff;
            --line:#e5ebf3;
            --primary:#4d5df5;
            --primary-dark:#3545d6;
            --mint:#30c6a5;
            --amber:#f6b84b;
            --violet:#8e73f2;
            --shadow:0 18px 55px rgba(39,57,91,.11);
            --shadow-sm:0 8px 25px rgba(39,57,91,.08);
            --radius:24px;
            --radius-sm:14px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.75;
            -webkit-font-smoothing:antialiased;
        }
        a{text-decoration:none;color:inherit}
        img{max-width:100%;display:block}
        button{font:inherit;border:0;cursor:pointer}
        :focus-visible{outline:3px solid rgba(77,93,245,.35);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,255,255,.92);
            backdrop-filter:blur(18px);
            border-bottom:1px solid rgba(229,235,243,.85);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;
            display:grid;place-items:center;color:#fff;font-size:17px;
            background:linear-gradient(145deg,var(--primary),#7c6cf4);
            box-shadow:0 8px 18px rgba(77,93,245,.25)
        }
        .brand-text{font-size:17px}
        .brand-text em{font-style:normal;color:var(--primary)}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{
            padding:10px 15px;border-radius:10px;color:#687488;font-size:14px;
            transition:.25s ease
        }
        .main-nav a:hover,.main-nav a.active{color:var(--primary);background:#eef0ff}
        .nav-action{
            padding:11px 18px;background:var(--ink);color:#fff;border-radius:12px;
            font-size:13px;font-weight:700;transition:.25s
        }
        .nav-action:hover{background:var(--primary);transform:translateY(-2px)}
        .article-hero{
            padding:74px 0 62px;
            background:linear-gradient(135deg,#f7f8ff 0%,#fff 55%,#eefbf9 100%);
            border-bottom:1px solid var(--line)
        }
        .breadcrumb{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:#8a94a5;font-size:13px;margin-bottom:28px}
        .breadcrumb a{color:var(--primary)}
        .breadcrumb .sep{color:#c1c8d4}
        .article-label{
            display:inline-flex;align-items:center;gap:8px;
            color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.06em
        }
        .article-label:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--mint)}
        .article-hero h1{
            max-width:900px;margin:16px 0 20px;
            font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-1.8px
        }
        .article-lead{max-width:800px;color:var(--muted);font-size:17px;margin:0}
        .article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px;color:#8791a2;font-size:13px}
        .meta-chip{padding:6px 12px;border-radius:30px;background:#fff;border:1px solid var(--line);color:var(--primary);font-weight:700}
        .article-layout{
            display:grid;grid-template-columns:minmax(0,790px) 290px;
            gap:70px;align-items:start;padding:78px 0 100px
        }
        .article-content{
            min-width:0;font-size:16px;color:#39465b
        }
        .article-content > *:first-child{margin-top:0}
        .article-content h2{
            color:var(--ink);font-size:30px;line-height:1.3;
            margin:42px 0 16px;letter-spacing:-.6px
        }
        .article-content h3{color:var(--ink);font-size:22px;margin:30px 0 12px}
        .article-content p{margin:0 0 20px}
        .article-content ul,.article-content ol{padding-left:24px;margin:16px 0 25px}
        .article-content li{padding:4px 0}
        .article-content blockquote{
            margin:30px 0;padding:22px 26px;border-left:4px solid var(--primary);
            background:#f6f7ff;border-radius:0 16px 16px 0;color:#4d5a72
        }
        .article-content img{border-radius:18px;margin:28px 0;box-shadow:var(--shadow-sm)}
        .article-content a{color:var(--primary);font-weight:700}
        .article-content table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border:1px solid var(--line)}
        .article-content th,.article-content td{padding:13px 15px;border:1px solid var(--line);text-align:left}
        .article-content th{background:var(--soft);color:var(--ink)}
        .article-aside{position:sticky;top:105px}
        .aside-card{
            padding:24px;background:var(--soft);border:1px solid var(--line);
            border-radius:20px;margin-bottom:18px
        }
        .aside-card h3{font-size:17px;margin:0 0 14px}
        .aside-card p{font-size:13px;color:var(--muted);margin:0}
        .aside-list{list-style:none;margin:0;padding:0}
        .aside-list li{border-bottom:1px solid var(--line);padding:11px 0;font-size:13px;color:#5e6a7e}
        .aside-list li:last-child{border-bottom:0;padding-bottom:0}
        .aside-list a:hover{color:var(--primary)}
        .article-note{
            display:flex;gap:14px;align-items:flex-start;padding:20px 22px;
            background:#fff8e9;border:1px solid #f7dfaa;border-radius:16px;
            color:#74623d;font-size:13px;margin-top:38px
        }
        .note-icon{
            width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;
            border-radius:9px;background:var(--amber);color:#fff;font-weight:800
        }
        .return-panel{
            padding:26px 30px;border-radius:20px;background:var(--ink);color:#fff;
            display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:48px
        }
        .return-panel h3{font-size:20px;margin:0 0 5px}
        .return-panel p{font-size:13px;color:#b9c2d4;margin:0}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:9px;
            padding:13px 20px;border-radius:13px;font-size:14px;font-weight:800;
            transition:.25s ease;border:1px solid transparent
        }
        .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(77,93,245,.22)}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
        .btn-light{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-light:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
        .not-found{
            padding:70px 30px;text-align:center;background:var(--soft);
            border:1px solid var(--line);border-radius:var(--radius)
        }
        .not-found h1{font-size:32px;margin:0 0 12px}
        .not-found p{color:var(--muted);margin:0 0 24px}
        .site-footer{background:#111a2b;color:#fff;padding:55px 0 24px}
        .footer-top{display:flex;justify-content:space-between;gap:60px;padding-bottom:42px}
        .footer-brand{max-width:330px}
        .footer-brand .brand-text{color:#fff}
        .footer-brand p{font-size:13px;color:#aeb8c9;margin:20px 0 0}
        .footer-links{display:grid;grid-template-columns:repeat(3,150px);gap:38px}
        .footer-links h4{font-size:14px;margin:0 0 13px}
        .footer-links a{display:block;color:#aeb8c9;font-size:13px;padding:4px 0;transition:.2s}
        .footer-links a:hover{color:#fff;transform:translateX(3px)}
        .copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;color:#8490a4;font-size:12px}
        .copyright a{color:#b9c3d4}
        @media(max-width:1024px){
            .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:38px}
            .main-nav a{padding:9px 10px}
            .nav-wrap{gap:14px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:auto;min-height:70px;flex-wrap:wrap;padding:12px 0}
            .main-nav{order:3;width:100%;overflow-x:auto;padding-bottom:2px}
            .main-nav a{white-space:nowrap;font-size:13px}
            .nav-action{display:none}
            .article-hero{padding:50px 0 45px}
            .article-layout{display:block;padding:48px 0 70px}
            .article-aside{position:static;margin-top:42px}
            .return-panel{align-items:flex-start;flex-direction:column}
            .footer-top{display:block}
            .footer-links{margin-top:35px;grid-template-columns:repeat(3,1fr);gap:15px}
        }
        @media(max-width:520px){
            .brand-text{font-size:15px}
            .brand-mark{width:34px;height:34px}
            .article-hero h1{font-size:32px}
            .article-lead{font-size:15px}
            .article-content{font-size:15px}
            .article-content h2{font-size:25px}
            .footer-links{grid-template-columns:1fr 1fr}
            .copyright{line-height:1.8}
        }

/* roulang page: category1 */
:root{
            --ink:#182235;
            --muted:#6f7b8e;
            --soft:#f5f8fc;
            --paper:#fff;
            --line:#e5ebf3;
            --primary:#4d5df5;
            --primary-dark:#3545d6;
            --mint:#30c6a5;
            --amber:#f6b84b;
            --violet:#8e73f2;
            --shadow:0 18px 55px rgba(39,57,91,.11);
            --shadow-sm:0 8px 25px rgba(39,57,91,.08);
            --radius:24px;
            --radius-sm:14px;
            --container:1180px
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;-webkit-font-smoothing:antialiased}
        a{text-decoration:none;color:inherit}
        button{font:inherit;border:0;cursor:pointer}
        img{max-width:100%;display:block}
        :focus-visible{outline:3px solid rgba(77,93,245,.35);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,235,243,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--primary),#7c6cf4);display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(77,93,245,.25)}
        .brand-text{font-size:17px}
        .brand-text em{font-style:normal;color:var(--primary)}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{padding:10px 15px;border-radius:10px;color:#687488;font-size:14px;transition:.25s ease}
        .main-nav a:hover,.main-nav a.active{color:var(--primary);background:#eef0ff}
        .nav-action{padding:11px 18px;background:var(--ink);color:#fff;border-radius:12px;font-size:13px;font-weight:700;transition:.25s}
        .nav-action:hover{background:var(--primary);transform:translateY(-2px)}
        .page-head{padding:66px 0 56px;background:linear-gradient(135deg,#f7f8ff,#fff 58%,#eefbf9)}
        .breadcrumb{display:flex;align-items:center;gap:10px;color:#8b96a7;font-size:13px;margin-bottom:28px}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb span{color:#c1c8d4}
        .head-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:end}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--mint)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-2px;margin:15px 0 20px;max-width:760px}
        .head-copy{font-size:17px;color:var(--muted);max-width:700px;margin-bottom:0}
        .head-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow-sm)}
        .head-panel strong{display:block;font-size:26px;line-height:1.2;margin:7px 0}
        .head-panel small{color:var(--muted)}
        .signal{display:flex;align-items:center;gap:8px;color:#4e5c70;font-size:13px;margin-top:16px}
        .signal i{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px #e3faf5}
        .section{padding:88px 0}
        .section-alt{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.2;letter-spacing:-1.2px;margin:12px 0 0}
        .section-intro{max-width:500px;color:var(--muted);font-size:15px;margin:0}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .guide-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:.25s}
        .guide-card:hover,.play-card:hover,.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .icon-box{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;color:#fff;font-weight:900;margin-bottom:22px}
        .icon-blue{background:linear-gradient(145deg,var(--primary),#8174ee)}
        .icon-mint{background:linear-gradient(145deg,#24b994,#65d5bd)}
        .icon-amber{background:linear-gradient(145deg,#f4ae3f,#ed7c72)}
        .guide-card h3{font-size:20px;margin-bottom:9px}
        .guide-card p{color:var(--muted);font-size:14px;margin-bottom:0}
        .play-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:32px;align-items:stretch}
        .play-intro{border-radius:var(--radius);padding:38px;color:#fff;background:linear-gradient(145deg,#26355c,#4d5df5);position:relative;overflow:hidden}
        .play-intro:after{content:"PG";position:absolute;right:-25px;bottom:-55px;font-size:190px;font-weight:900;color:rgba(255,255,255,.09)}
        .play-intro>*{position:relative;z-index:1}
        .play-intro h2{font-size:31px;line-height:1.25;margin:15px 0}
        .play-intro p{color:#dce3ff;font-size:14px}
        .tag{display:inline-block;padding:5px 10px;background:#eef0ff;color:var(--primary);border-radius:20px;font-size:11px;font-weight:800}
        .tag-light{background:rgba(255,255,255,.16);color:#fff}
        .play-list{display:grid;gap:14px}
        .play-card{display:grid;grid-template-columns:115px 1fr auto;gap:20px;align-items:center;padding:18px;background:#fff;border:1px solid var(--line);border-radius:20px;transition:.25s}
        .cover{height:86px;border-radius:15px;display:grid;place-items:center;color:#fff;font-size:25px;font-weight:900;background:linear-gradient(145deg,#6270fa,#9d7be8)}
        .cover.mint{background:linear-gradient(145deg,#22b998,#56a9ef)}
        .cover.amber{background:linear-gradient(145deg,#f5b33f,#dc7182)}
        .play-card h3{font-size:17px;margin:0 0 5px}
        .play-card p{color:var(--muted);font-size:13px;margin:0 0 8px}
        .meta-line{display:flex;gap:12px;flex-wrap:wrap;color:#8b96a7;font-size:11px}
        .card-arrow{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--primary);font-size:18px}
        .card-arrow:hover{background:var(--primary);color:#fff}
        .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
        .scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:.25s}
        .scene-card h3{font-size:24px;margin:17px 0 10px}
        .scene-card p{font-size:14px;color:var(--muted);margin-bottom:20px}
        .scene-list{list-style:none;padding:0;margin:0;display:grid;gap:11px}
        .scene-list li{font-size:13px;color:#4f5d70;display:flex;gap:10px;align-items:flex-start}
        .scene-list li:before{content:"✓";color:var(--mint);font-weight:900}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
        .step{padding:27px 24px 10px 0;border-right:1px solid var(--line);margin-right:24px}
        .step:last-child{border-right:0;margin-right:0}
        .step-num{width:34px;height:34px;border-radius:11px;background:#eef0ff;color:var(--primary);display:grid;place-items:center;font-weight:900;font-size:13px;margin-bottom:18px}
        .step h3{font-size:17px;margin-bottom:7px}
        .step p{color:var(--muted);font-size:13px;margin-bottom:0}
        .news-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:28px;align-items:start}
        .news-summary{padding:30px;background:#f6f7ff;border-radius:22px}
        .news-summary h3{font-size:25px;margin:15px 0 10px}
        .news-summary p{color:var(--muted);font-size:14px}
        .news-list{display:grid;gap:12px}
        .news-item{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
        .news-item:last-child{border-bottom:0}
        .news-item h3{font-size:16px;margin:6px 0}
        .news-item p{font-size:13px;color:var(--muted);margin:0}
        .news-date{min-width:82px;color:var(--primary);font-size:12px;font-weight:800;text-align:right}
        .empty-state{padding:28px;border:1px dashed #cfd7e5;border-radius:18px;color:var(--muted);font-size:14px;background:#fff}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
        .faq-lead p{color:var(--muted);font-size:14px}
        .faq-list{display:grid;gap:10px}
        .faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 21px}
        .faq-list details[open]{border-color:#cbd0ff;box-shadow:var(--shadow-sm)}
        .faq-list summary{cursor:pointer;font-weight:800;font-size:15px;list-style:none;position:relative;padding-right:25px}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";position:absolute;right:0;color:var(--primary);font-size:21px;line-height:1}
        .faq-list details[open] summary:after{content:"−"}
        .faq-answer{font-size:13px;color:var(--muted);padding-top:12px}
        .notice{margin-top:28px;padding:18px 22px;border-radius:16px;background:#fff8e9;color:#76623d;font-size:13px;border:1px solid #f5e5bc}
        .cta-band{padding:32px 38px;border-radius:var(--radius);background:linear-gradient(110deg,#202c4b,#4d5df5);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}
        .cta-band h2{font-size:28px;margin:0 0 7px}
        .cta-band p{color:#dce3ff;margin:0;font-size:14px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 22px;border-radius:13px;font-size:14px;font-weight:800;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(77,93,245,.22)}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
        .btn-light{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-light:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
        .site-footer{background:#172136;color:#c9d1df;padding:54px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
        .site-footer .brand-text{color:#fff}
        .footer-brand p{font-size:13px;color:#98a5b9;max-width:300px;margin:18px 0 0}
        .footer-links{display:grid;grid-template-columns:repeat(3,145px);gap:30px}
        .footer-links h4{font-size:13px;color:#fff;margin:0 0 15px}
        .footer-links a{display:block;color:#98a5b9;font-size:12px;margin:9px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{padding-top:22px;color:#8794aa;font-size:11px}
        .copyright a{color:#b9c4d7}
        @media(max-width:1024px){
            .hero-grid,.head-grid,.play-layout,.news-wrap,.faq-grid{grid-template-columns:1fr}
            .head-panel{max-width:430px}
            .hall-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:auto;min-height:72px;flex-wrap:wrap;padding:12px 0;gap:12px}
            .main-nav{order:3;width:100%;overflow:auto;padding-bottom:2px}
            .main-nav a{white-space:nowrap;padding:8px 11px}
            .nav-action{font-size:12px;padding:9px 13px}
            .brand-text{font-size:15px}
            .page-head{padding:42px 0}
            h1{font-size:42px}
            .section{padding:64px 0}
            .section-head{display:block}
            .section-intro{margin-top:16px}
            .guide-grid,.scene-grid{grid-template-columns:1fr}
            .steps{grid-template-columns:1fr 1fr;border-top:0;gap:20px}
            .step{border-right:0;border-top:1px solid var(--line);padding-top:22px;margin:0}
            .cta-band{display:block;padding:28px}
            .cta-band .btn{margin-top:22px}
            .footer-top{display:block}
            .footer-links{margin-top:30px;grid-template-columns:repeat(3,1fr);gap:14px}
        }
        @media(max-width:520px){
            h1{font-size:34px;letter-spacing:-1px}
            .play-card{grid-template-columns:76px 1fr}
            .cover{height:76px;font-size:20px}
            .card-arrow{display:none}
            .hall-grid{grid-template-columns:1fr}
            .steps{grid-template-columns:1fr}
            .news-item{display:block}
            .news-date{text-align:left;margin-top:9px}
            .footer-links{grid-template-columns:1fr 1fr}
        }

/* roulang page: category2 */
:root{
            --ink:#182235;
            --muted:#6f7b8e;
            --soft:#f5f8fc;
            --paper:#ffffff;
            --line:#e5ebf3;
            --primary:#4d5df5;
            --primary-dark:#3545d6;
            --mint:#30c6a5;
            --amber:#f6b84b;
            --violet:#8e73f2;
            --danger:#e77575;
            --shadow:0 18px 55px rgba(39,57,91,.11);
            --shadow-sm:0 8px 25px rgba(39,57,91,.08);
            --radius:24px;
            --radius-sm:14px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            color:var(--ink);
            background:var(--paper);
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{text-decoration:none;color:inherit}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        img{max-width:100%;display:block}
        :focus-visible{outline:3px solid rgba(77,93,245,.35);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,255,255,.9);
            backdrop-filter:blur(18px);
            border-bottom:1px solid rgba(229,235,243,.8);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;
            background:linear-gradient(145deg,var(--primary),#7c6cf4);
            display:grid;place-items:center;color:#fff;font-size:17px;
            box-shadow:0 8px 18px rgba(77,93,245,.25)
        }
        .brand-text{font-size:17px}
        .brand-text em{font-style:normal;color:var(--primary)}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{
            padding:10px 15px;border-radius:10px;color:#687488;
            font-size:14px;transition:.25s ease;
        }
        .main-nav a:hover,.main-nav a.active{color:var(--primary);background:#eef0ff}
        .nav-action{
            padding:11px 18px;background:var(--ink);color:#fff;border-radius:12px;
            font-size:13px;font-weight:700;transition:.25s;
        }
        .nav-action:hover{background:var(--primary);transform:translateY(-2px)}
        .page-head{
            position:relative;
            overflow:hidden;
            padding:55px 0 48px;
            background:linear-gradient(130deg,#f5f7ff 0%,#ffffff 54%,#eefbf8 100%);
            border-bottom:1px solid var(--line);
        }
        .page-head:after{
            content:"";position:absolute;width:370px;height:370px;border-radius:50%;
            right:-110px;top:-170px;background:radial-gradient(circle,rgba(77,93,245,.15),rgba(77,93,245,0) 67%);
        }
        .breadcrumb{
            position:relative;z-index:1;
            display:flex;align-items:center;gap:10px;margin:0 0 21px;padding:0;
            list-style:none;font-size:13px;color:var(--muted);
        }
        .breadcrumb a{transition:.2s;color:var(--muted)}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb span{color:#b0bac8}
        .page-head-grid{
            position:relative;z-index:1;display:grid;grid-template-columns:1fr 270px;
            align-items:end;gap:40px;
        }
        .section-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--primary);
            font-size:13px;font-weight:800;letter-spacing:.08em;
        }
        .section-kicker:before{
            content:"";width:22px;height:3px;border-radius:3px;background:var(--mint)
        }
        h1,h2,h3,p{margin-top:0}
        h1{
            margin:12px 0 14px;font-size:clamp(33px,4.2vw,52px);line-height:1.16;
            letter-spacing:-1.8px;font-weight:850;
        }
        .head-copy{max-width:710px;font-size:16px;color:var(--muted)}
        .head-signal{
            padding:22px;border-radius:20px;background:rgba(255,255,255,.78);
            border:1px solid rgba(229,235,243,.9);box-shadow:var(--shadow-sm);
        }
        .signal-icon{
            width:46px;height:46px;border-radius:15px;display:grid;place-items:center;
            color:#fff;font-weight:900;font-size:20px;background:linear-gradient(135deg,var(--primary),var(--violet));
            margin-bottom:13px;
        }
        .head-signal b{display:block;font-size:15px}
        .head-signal span{font-size:12px;color:var(--muted)}
        .section{padding:88px 0}
        .section-soft{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:35px}
        .section-title{
            margin:11px 0 0;font-size:clamp(27px,3.2vw,39px);line-height:1.22;letter-spacing:-1.1px;
        }
        .section-intro{max-width:500px;margin:0;color:var(--muted);font-size:15px}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:9px;
            padding:14px 22px;border-radius:13px;font-size:14px;font-weight:800;
            transition:.25s ease;border:1px solid transparent;
        }
        .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(77,93,245,.22)}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 13px 27px rgba(77,93,245,.3)}
        .btn-light{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-light:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
        .btn-dark{background:var(--ink);color:#fff}
        .btn-dark:hover{background:var(--primary);transform:translateY(-2px)}
        .tag{
            display:inline-flex;align-items:center;padding:5px 10px;border-radius:99px;
            background:#eef0ff;color:var(--primary);font-size:12px;font-weight:750;
        }
        .guide-strip{
            display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch;
        }
        .guide-copy,.guide-points{
            padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
            box-shadow:var(--shadow-sm);
        }
        .guide-copy p{margin:14px 0 21px;color:var(--muted);font-size:15px}
        .tag-list{display:flex;gap:9px;flex-wrap:wrap}
        .tag-list .tag{background:var(--soft);color:#526078}
        .guide-points{display:grid;gap:14px;align-content:center}
        .point-row{display:flex;align-items:center;gap:13px}
        .point-icon{
            width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:12px;
            background:#edf9f6;color:#179b80;font-weight:900;
        }
        .point-row b{display:block;font-size:14px}
        .point-row span{display:block;color:var(--muted);font-size:12px}
        .download-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:32px;align-items:stretch}
        .app-poster{
            min-height:470px;position:relative;overflow:hidden;border-radius:var(--radius);
            padding:35px;background:linear-gradient(145deg,#313c9e 0%,#5968f8 55%,#3cc6aa 130%);
            color:#fff;box-shadow:var(--shadow);
        }
        .app-poster:before{
            content:"";position:absolute;right:-80px;top:-65px;width:285px;height:285px;border-radius:50%;
            border:45px solid rgba(255,255,255,.1);
        }
        .poster-brand{position:relative;z-index:1;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:800}
        .poster-mark{
            width:32px;height:32px;border:1px solid rgba(255,255,255,.35);border-radius:10px;
            display:grid;place-items:center;font-size:12px;background:rgba(255,255,255,.12)
        }
        .poster-title{position:relative;z-index:1;margin:44px 0 4px;font-size:31px;line-height:1.2;font-weight:850}
        .poster-copy{position:relative;z-index:1;max-width:265px;color:rgba(255,255,255,.78);font-size:13px}
        .phone-shape{
            position:absolute;z-index:1;right:30px;bottom:-55px;width:210px;height:340px;
            padding:11px;border:6px solid #17203a;border-radius:31px;background:#17203a;
            transform:rotate(-8deg);box-shadow:0 25px 40px rgba(16,23,66,.3);
        }
        .phone-notch{width:76px;height:14px;margin:0 auto 8px;border-radius:0 0 10px 10px;background:#17203a;position:relative;z-index:2}
        .phone-screen{
            height:294px;border-radius:19px;padding:19px;background:linear-gradient(160deg,#edf0ff,#c9d7ff 56%,#baf3e8);
            color:var(--ink);
        }
        .phone-screen small{font-size:9px;color:#5c6a83}
        .mini-heading{margin-top:28px;font-size:16px;font-weight:850}
        .mini-bars{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:12px}
        .mini-bars span{height:74px;border-radius:10px;background:linear-gradient(145deg,#6572ef,#9b86ed)}
        .mini-bars span:nth-child(2){background:linear-gradient(145deg,#36c4a4,#62a8ec)}
        .mini-bars span:nth-child(3){background:linear-gradient(145deg,#efae56,#df7290)}
        .mini-play{margin-top:16px;border-radius:10px;padding:8px;text-align:center;background:#fff;color:var(--primary);font-size:10px;font-weight:850}
        .download-card{
            border:1px solid var(--line);border-radius:var(--radius);padding:34px;background:#fff;box-shadow:var(--shadow-sm);
        }
        .download-card h2{margin:10px 0 8px;font-size:29px;letter-spacing:-.7px}
        .download-card>p{color:var(--muted);font-size:14px;margin-bottom:25px}
        .meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:24px}
        .meta-box{padding:14px;border-radius:14px;background:var(--soft)}
        .meta-box span{display:block;color:var(--muted);font-size:11px}
        .meta-box b{display:block;margin-top:3px;font-size:13px}
        .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:19px}
        .download-note{
            display:flex;gap:10px;padding:14px 15px;border-radius:13px;
            background:#fff8e9;color:#77551c;font-size:12px;
        }
        .download-note i{
            width:21px;height:21px;flex:0 0 21px;border-radius:50%;display:grid;place-items:center;
            background:#f6b84b;color:#fff;font-style:normal;font-weight:900;
        }
        .install-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
        .steps{display:grid;gap:13px}
        .step-item{
            display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start;padding:18px;
            border:1px solid var(--line);border-radius:17px;background:#fff;transition:.25s ease;
        }
        .step-item:hover{transform:translateX(5px);box-shadow:var(--shadow-sm);border-color:#d8dcff}
        .step-num{
            width:35px;height:35px;border-radius:12px;display:grid;place-items:center;
            background:#eef0ff;color:var(--primary);font-weight:850;font-size:13px;
        }
        .step-item h3{margin:1px 0 4px;font-size:16px}
        .step-item p{margin:0;color:var(--muted);font-size:13px}
        .install-panel{
            min-height:400px;border-radius:var(--radius);padding:34px;
            background:linear-gradient(150deg,#14213e,#273b6b);color:#fff;position:relative;overflow:hidden;
        }
        .install-panel:after{
            content:"";position:absolute;width:220px;height:220px;right:-56px;bottom:-64px;border-radius:50%;
            background:rgba(48,198,165,.18);box-shadow:0 0 0 42px rgba(48,198,165,.08),0 0 0 84px rgba(48,198,165,.05);
        }
        .install-panel h3{position:relative;z-index:1;margin:15px 0 8px;font-size:25px}
        .install-panel p{position:relative;z-index:1;color:#c6d0e8;font-size:14px}
        .compat-list{position:relative;z-index:1;margin-top:27px;display:grid;gap:11px}
        .compat-list div{
            display:flex;justify-content:space-between;gap:15px;padding:11px 13px;border-radius:11px;
            background:rgba(255,255,255,.08);font-size:12px;
        }
        .compat-list span{color:#b8c5e0}
        .compat-list b{color:#fff}
        .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .scene-card{
            min-height:230px;padding:25px;border:1px solid var(--line);border-radius:20px;background:#fff;
            transition:.25s ease;position:relative;overflow:hidden;
        }
        .scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#dce0ff}
        .scene-symbol{
            width:49px;height:49px;display:grid;place-items:center;border-radius:15px;margin-bottom:23px;
            background:#eef0ff;color:var(--primary);font-size:20px;font-weight:900;
        }
        .scene-card:nth-child(2) .scene-symbol{background:#e8faf5;color:#169d82}
        .scene-card:nth-child(3) .scene-symbol{background:#fff5e5;color:#d38a18}
        .scene-card h3{font-size:18px;margin-bottom:8px}
        .scene-card p{font-size:13px;color:var(--muted);margin-bottom:0}
        .support-band{
            display:grid;grid-template-columns:.92fr 1.08fr;gap:28px;align-items:center;padding:34px;
            border:1px solid #dfe5fb;border-radius:var(--radius);background:linear-gradient(115deg,#f1f3ff,#f5fffb);
        }
        .support-band h2{margin:10px 0;font-size:29px;letter-spacing:-.8px}
        .support-band p{margin:0;color:var(--muted);font-size:14px}
        .support-items{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
        .support-item{
            padding:16px;border-radius:15px;background:rgba(255,255,255,.82);border:1px solid rgba(229,235,243,.9);
        }
        .support-item b{display:block;font-size:14px;margin-bottom:3px}
        .support-item span{display:block;color:var(--muted);font-size:12px}
        .faq-wrap{max-width:900px;margin:0 auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{
            width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 2px;
            background:transparent;color:var(--ink);font-weight:800;text-align:left;font-size:16px;
        }
        .faq-question span:last-child{
            width:28px;height:28px;display:grid;place-items:center;border-radius:9px;
            color:var(--primary);background:#eef0ff;font-size:20px;line-height:1;transition:.25s;
        }
        .faq-answer{display:none;padding:0 44px 20px 2px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--primary);color:#fff}
        .safety-card{
            display:flex;gap:15px;align-items:flex-start;padding:21px 23px;border-radius:18px;
            background:#fff8e9;border:1px solid #f5e2b9;color:#73551f;
        }
        .safety-icon{
            width:36px;height:36px;flex:0 0 36px;display:grid;place-items:center;border-radius:12px;
            background:#f6b84b;color:#fff;font-weight:900;
        }
        .safety-card h3{font-size:16px;margin:0 0 4px}
        .safety-card p{font-size:13px;margin:0}
        .cta-section{padding:0 0 92px}
        .cta-panel{
            display:flex;justify-content:space-between;align-items:center;gap:28px;padding:37px 42px;
            border-radius:var(--radius);background:var(--ink);color:#fff;overflow:hidden;position:relative;
        }
        .cta-panel:before{
            content:"";position:absolute;right:18%;top:-85px;width:230px;height:230px;border-radius:50%;
            background:rgba(77,93,245,.4);
        }
        .cta-panel:after{
            content:"";position:absolute;right:-45px;bottom:-100px;width:250px;height:250px;border-radius:50%;
            border:45px solid rgba(48,198,165,.15);
        }
        .cta-copy{position:relative;z-index:1}
        .cta-copy .section-kicker{color:#bcc5ff}
        .cta-copy h2{margin:10px 0 5px;font-size:29px;letter-spacing:-.8px}
        .cta-copy p{margin:0;color:#bbc5dc;font-size:14px}
        .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}
        .cta-panel .btn-primary{background:#fff;color:var(--primary);box-shadow:none}
        .cta-panel .btn-primary:hover{background:#e9ecff}
        .cta-panel .btn-light{background:transparent;border-color:rgba(255,255,255,.3);color:#fff}
        .cta-panel .btn-light:hover{border-color:#fff;color:#fff}
        .site-footer{background:#101827;color:#b5c0d5;padding:62px 0 24px}
        .footer-top{display:flex;justify-content:space-between;gap:60px;padding-bottom:42px}
        .site-footer .brand{color:#fff}
        .site-footer .brand-mark{box-shadow:none}
        .footer-brand{max-width:345px}
        .footer-brand p{font-size:13px;line-height:1.8;margin:17px 0 0;color:#aebbd0}
        .footer-links{display:grid;grid-template-columns:repeat(3,minmax(110px,1fr));gap:37px}
        .footer-links h4{color:#fff;font-size:14px;margin:0 0 14px}
        .footer-links a{display:block;font-size:13px;color:#aebbd0;margin:8px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{padding-top:22px;border-top:1px solid rgba(255,255,255,.11);font-size:12px;color:#8f9bb0}
        .copyright a{color:#c5d0e5}
        .copyright a:hover{color:#fff}
        @media (max-width:1024px){
            .download-layout,.install-grid{grid-template-columns:1fr}
            .app-poster{min-height:390px}
            .guide-strip{grid-template-columns:1fr}
            .page-head-grid{grid-template-columns:1fr 220px}
            .section{padding:74px 0}
        }
        @media (max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .nav-wrap{height:70px;gap:14px}
            .brand-text{font-size:15px}
            .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
            .main-nav{gap:1px;overflow-x:auto;justify-content:flex-start}
            .main-nav a{font-size:12px;padding:8px 9px;white-space:nowrap}
            .nav-action{display:none}
            .page-head{padding:38px 0}
            .page-head-grid{grid-template-columns:1fr}
            .head-signal{display:none}
            h1{font-size:36px}
            .section-head{display:block;margin-bottom:28px}
            .section-intro{margin-top:14px}
            .meta-grid,.scene-grid{grid-template-columns:1fr}
            .support-band{grid-template-columns:1fr;padding:27px}
            .footer-top{display:grid;gap:35px}
            .footer-links{grid-template-columns:repeat(3,1fr);gap:18px}
            .cta-panel{display:block;padding:31px}
            .cta-actions{margin-top:21px}
        }
        @media (max-width:520px){
            .main-nav a{padding:8px 7px;font-size:11px}
            .brand{gap:8px}
            .brand-text em{display:none}
            .page-head{padding:31px 0}
            .breadcrumb{font-size:12px;margin-bottom:15px}
            h1{font-size:30px;letter-spacing:-1.2px}
            .head-copy{font-size:14px}
            .section{padding:58px 0}
            .section-title{font-size:27px}
            .guide-copy,.guide-points,.download-card{padding:24px}
            .app-poster{min-height:350px;padding:26px}
            .poster-title{font-size:27px;margin-top:31px}
            .phone-shape{right:16px;width:175px;height:286px;bottom:-45px}
            .phone-screen{height:246px;padding:15px}
            .mini-heading{margin-top:21px;font-size:14px}
            .mini-bars span{height:57px}
            .download-actions .btn{width:100%}
            .install-panel{padding:26px;min-height:330px}
            .support-items{grid-template-columns:1fr}
            .safety-card{padding:17px}
            .faq-question{font-size:14px}
            .faq-answer{padding-right:8px}
            .footer-links{grid-template-columns:1fr 1fr}
            .footer-links>div:last-child{grid-column:span 2}
            .cta-panel{padding:27px 23px}
            .cta-copy h2{font-size:25px}
            .cta-actions .btn{width:100%}
        }

/* roulang page: category3 */
:root{
            --ink:#182235;
            --muted:#6f7b8e;
            --soft:#f5f8fc;
            --paper:#ffffff;
            --line:#e5ebf3;
            --primary:#4d5df5;
            --primary-dark:#3545d6;
            --mint:#30c6a5;
            --amber:#f6b84b;
            --violet:#8e73f2;
            --shadow:0 18px 55px rgba(39,57,91,.11);
            --shadow-sm:0 8px 25px rgba(39,57,91,.08);
            --radius:24px;
            --radius-sm:14px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;-webkit-font-smoothing:antialiased}
        a{text-decoration:none;color:inherit}
        img{display:block;max-width:100%}
        button{font:inherit;border:0;cursor:pointer}
        :focus-visible{outline:3px solid rgba(77,93,245,.35);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,235,243,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--primary),#7c6cf4);display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(77,93,245,.25)}
        .brand-text{font-size:17px}
        .brand-text em{font-style:normal;color:var(--primary)}
        .main-nav{display:flex;align-items:center;gap:8px}
        .main-nav a{padding:10px 15px;border-radius:10px;color:#687488;font-size:14px;transition:.25s ease}
        .main-nav a:hover,.main-nav a.active{color:var(--primary);background:#eef0ff}
        .nav-action{padding:11px 18px;background:var(--ink);color:#fff;border-radius:12px;font-size:13px;font-weight:700;transition:.25s}
        .nav-action:hover{background:var(--primary);transform:translateY(-2px)}
        .page-head{padding:70px 0 62px;background:linear-gradient(135deg,#f7f8ff 0%,#fff 58%,#eefbf9 100%);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;align-items:center;gap:9px;color:#8a94a5;font-size:13px;margin-bottom:28px}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb span{color:#c4cad4}
        .head-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--mint)}
        h1{font-size:clamp(36px,5vw,62px);line-height:1.15;letter-spacing:-2px;margin:14px 0 20px}
        .head-copy{max-width:690px;color:var(--muted);font-size:17px;margin:0}
        .head-aside{background:#fff;border:1px solid var(--line);border-radius:22px;padding:23px;box-shadow:var(--shadow-sm)}
        .head-aside strong{display:block;font-size:19px;margin-bottom:5px}
        .head-aside p{margin:0;color:var(--muted);font-size:13px}
        .head-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
        .tag{display:inline-flex;padding:6px 11px;background:#eef0ff;color:var(--primary);border-radius:20px;font-size:12px;font-weight:700}
        .tag.mint{background:#e8faf5;color:#188f78}
        .section{padding:88px 0}
        .section.soft{background:var(--soft)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.2;letter-spacing:-1.2px;margin:12px 0 0}
        .section-intro{max-width:510px;color:var(--muted);font-size:15px;margin:0}
        .guide-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}
        .guide-panel,.signal-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
        .guide-panel{padding:34px}
        .guide-panel h2{font-size:25px;margin:0 0 13px}
        .guide-panel p{color:var(--muted);margin:0;max-width:720px}
        .signal-stack{display:grid;gap:24px}
        .signal-card{padding:25px}
        .signal-card b{display:block;font-size:26px;color:var(--primary);line-height:1.1;margin-bottom:7px}
        .signal-card span{font-size:13px;color:var(--muted)}
        .news-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:start}
        .news-feature{padding:31px;background:#f6f7ff;border-radius:var(--radius);min-height:300px;position:relative;overflow:hidden}
        .news-feature:after{content:"资讯";position:absolute;right:-12px;bottom:-48px;color:rgba(77,93,245,.08);font-weight:900;font-size:128px}
        .news-feature>*{position:relative;z-index:1}
        .news-feature h2{font-size:28px;line-height:1.3;margin:19px 0 13px}
        .news-feature p{color:var(--muted);font-size:14px;margin:0}
        .news-list{display:grid;gap:13px}
        .news-item{display:grid;grid-template-columns:82px 1fr auto;gap:18px;align-items:center;padding:19px 20px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:.25s ease}
        .news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#cfd5ff}
        .news-date{font-size:12px;color:var(--primary);font-weight:800}
        .news-item h3{font-size:16px;margin:0 0 4px;line-height:1.45}
        .news-item p{margin:0;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
        .news-arrow{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:#f0f2ff;color:var(--primary);font-size:18px}
        .empty-state{padding:35px;border:1px dashed #cbd3e3;border-radius:18px;color:var(--muted);background:#fbfcfe;text-align:center}
        .empty-state strong{display:block;color:var(--ink);margin-bottom:5px}
        .more-row{margin-top:24px;text-align:right}
        .text-link{color:var(--primary);font-weight:800;font-size:14px}
        .text-link:hover{color:var(--primary-dark)}
        .version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .version-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:20px;transition:.25s ease}
        .version-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-3px)}
        .version-card .status{display:inline-flex;padding:5px 10px;border-radius:20px;font-size:11px;font-weight:800;color:#17866f;background:#e8faf5}
        .version-card:nth-child(2) .status{color:#8b6416;background:#fff4dc}
        .version-card:nth-child(3) .status{color:#6150b5;background:#f0edff}
        .version-card h3{margin:18px 0 7px;font-size:19px}
        .version-card p{margin:0;color:var(--muted);font-size:13px}
        .version-meta{margin-top:18px;padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:#8a94a5}
        .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .scene-card{padding:28px;border-radius:20px;background:#fff;border:1px solid var(--line)}
        .scene-icon{width:45px;height:45px;border-radius:14px;display:grid;place-items:center;background:#eef0ff;color:var(--primary);font-size:21px;margin-bottom:21px}
        .scene-card:nth-child(2) .scene-icon{background:#e8faf5;color:#18977c}
        .scene-card:nth-child(3) .scene-icon{background:#fff4dc;color:#b27a18}
        .scene-card h3{font-size:19px;margin:0 0 8px}
        .scene-card p{margin:0;color:var(--muted);font-size:13px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden;box-shadow:var(--shadow-sm)}
        .step{position:relative;padding:30px 25px;border-right:1px solid var(--line)}
        .step:last-child{border-right:0}
        .step-no{font-size:12px;color:var(--primary);font-weight:900;letter-spacing:.08em}
        .step h3{font-size:18px;margin:17px 0 8px}
        .step p{font-size:13px;color:var(--muted);margin:0}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
        .faq-side p{color:var(--muted);font-size:15px}
        .faq-list{display:grid;gap:11px}
        .faq-list details{border:1px solid var(--line);border-radius:15px;padding:18px 20px;background:#fff}
        .faq-list summary{cursor:pointer;font-weight:800;font-size:15px;list-style:none;position:relative;padding-right:25px}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";position:absolute;right:0;color:var(--primary);font-size:21px;line-height:1}
        .faq-list details[open] summary:after{content:"−"}
        .faq-list details p{color:var(--muted);font-size:13px;margin:13px 0 0;padding-top:13px;border-top:1px solid var(--line)}
        .cta-strip{padding:31px 34px;border-radius:22px;background:linear-gradient(105deg,var(--ink),#354b78);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta-strip h2{font-size:25px;margin:0 0 5px}
        .cta-strip p{color:#cbd4e6;margin:0;font-size:13px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:13px;font-size:14px;font-weight:800;transition:.25s ease;border:1px solid transparent}
        .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(77,93,245,.22)}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff}
        .btn-light{background:#fff;border-color:var(--line);color:var(--ink)}
        .btn-light:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
        .site-footer{padding:58px 0 24px;background:#131b2c;color:#fff}
        .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
        .footer-brand{max-width:330px}
        .footer-brand .brand-text{color:#fff}
        .footer-brand p{color:#aeb8ca;font-size:13px;margin:18px 0 0}
        .footer-links{display:flex;gap:70px}
        .footer-links div{display:flex;flex-direction:column;gap:8px}
        .footer-links h4{font-size:14px;margin:0 0 8px}
        .footer-links a{font-size:13px;color:#aeb8ca;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{padding-top:22px;color:#8e9ab0;font-size:12px}
        .copyright a{color:#bfc8d8}
        @media(max-width:1024px){
            .nav-wrap{gap:14px}
            .main-nav a{padding:9px 10px}
            .head-grid,.guide-grid,.news-layout,.faq-grid{gap:28px}
            .steps{grid-template-columns:repeat(2,1fr)}
            .step:nth-child(2){border-right:0}
            .step:nth-child(-n+2){border-bottom:1px solid var(--line)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .nav-wrap{height:auto;min-height:72px;flex-wrap:wrap;padding:12px 0}
            .main-nav{order:3;width:100%;overflow-x:auto;justify-content:flex-start;padding-bottom:2px}
            .main-nav a{white-space:nowrap}
            .nav-action{margin-left:auto}
            .page-head{padding:48px 0}
            .head-grid,.guide-grid,.news-layout,.faq-grid{grid-template-columns:1fr}
            .section{padding:65px 0}
            .section-head{display:block}
            .section-intro{margin-top:16px}
            .version-grid,.scene-grid{grid-template-columns:1fr 1fr}
            .footer-top{display:block}
            .footer-links{margin-top:32px;gap:35px;flex-wrap:wrap}
        }
        @media(max-width:520px){
            h1{font-size:36px;letter-spacing:-1.2px}
            .head-copy{font-size:15px}
            .guide-panel{padding:25px}
            .news-item{grid-template-columns:65px 1fr}
            .news-arrow{display:none}
            .news-item p{white-space:normal}
            .version-grid,.scene-grid,.steps{grid-template-columns:1fr}
            .step{border-right:0;border-bottom:1px solid var(--line)}
            .step:last-child{border-bottom:0}
            .step:nth-child(2){border-bottom:1px solid var(--line)}
            .cta-strip{display:block;padding:26px}
            .cta-strip .btn{margin-top:20px;width:100%}
            .footer-links{gap:25px}
        }