/* roulang page: index */
:root{
            --coral:#f45d48;
            --coral-dark:#d94837;
            --plum:#261735;
            --plum-2:#3b2352;
            --mint:#b7edc5;
            --lime:#d9f36a;
            --sand:#f8f4ed;
            --paper:#fffdf9;
            --ink:#211c2a;
            --muted:#736b79;
            --line:#e8e0dc;
            --lavender:#eee7f4;
            --shadow:0 18px 50px rgba(47,29,55,.10);
            --shadow-soft:0 8px 24px rgba(47,29,55,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1220px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            color:var(--ink);
            background:var(--sand);
            line-height:1.7;
            font-size:16px;
            overflow-x:hidden;
        }
        img{max-width:100%;display:block}
        a{color:inherit;text-decoration:none}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        :focus-visible{outline:3px solid rgba(244,93,72,.4);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,253,249,.94);
            backdrop-filter:blur(12px);
            border-bottom:1px solid rgba(59,35,82,.10);
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:42px;height:42px;border-radius:12px 12px 12px 4px;
            background:var(--coral);color:#fff;display:grid;place-items:center;
            font-weight:900;font-size:18px;letter-spacing:-1px;
            box-shadow:5px 5px 0 var(--plum);
        }
        .brand-copy{display:flex;flex-direction:column;line-height:1.15}
        .brand-title{font-size:17px;font-weight:900;color:var(--plum)}
        .brand-sub{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{
            padding:10px 13px;border-radius:10px;font-size:14px;color:#554c5c;
            transition:.25s ease;white-space:nowrap
        }
        .main-nav a:hover,.main-nav a.active{background:var(--lavender);color:var(--plum);font-weight:700}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .nav-action,.btn-primary{
            background:var(--coral);color:#fff;font-weight:800;padding:12px 19px;
            border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
            transition:.25s ease;box-shadow:0 8px 18px rgba(244,93,72,.22)
        }
        .nav-action:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(244,93,72,.28)}
        .menu-toggle{display:none;background:var(--lavender);color:var(--plum);width:43px;height:43px;border-radius:10px;font-size:22px}
        .hero{
            background:var(--plum);color:#fff;position:relative;overflow:hidden;
            min-height:590px;display:flex;align-items:center
        }
        .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .hero:before{width:500px;height:500px;background:rgba(244,93,72,.15);right:-150px;top:-180px}
        .hero:after{width:330px;height:330px;border:1px solid rgba(183,237,197,.25);right:18%;bottom:-220px}
        .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:center;padding:82px 0}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
        .eyebrow{color:var(--lime);margin-bottom:20px}
        .eyebrow:before{content:"";width:26px;height:3px;background:var(--coral);border-radius:3px}
        .hero h1{font-size:clamp(40px,5vw,68px);line-height:1.12;letter-spacing:-.05em;max-width:650px}
        .hero h1 em{font-style:normal;color:var(--lime)}
        .hero-lead{font-size:18px;color:#d9cede;max-width:570px;margin:24px 0 31px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-secondary{
            color:#fff;border:1px solid rgba(255,255,255,.28);padding:11px 18px;border-radius:10px;
            display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.25s ease
        }
        .btn-secondary:hover{background:rgba(255,255,255,.1);border-color:var(--mint);transform:translateY(-2px)}
        .hero-notes{display:flex;gap:24px;margin-top:36px;color:#c0b3c5;font-size:13px;flex-wrap:wrap}
        .hero-notes span{display:flex;align-items:center;gap:7px}
        .hero-notes b{color:var(--mint);font-size:17px}
        .hero-art{height:390px;position:relative;display:flex;align-items:center;justify-content:center}
        .art-orbit{position:absolute;width:355px;height:355px;border:1px solid rgba(217,243,106,.45);border-radius:50%;transform:rotate(-21deg)}
        .art-orbit:before,.art-orbit:after{content:"";position:absolute;width:12px;height:12px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 7px rgba(217,243,106,.13)}
        .art-orbit:before{left:30px;top:64px}.art-orbit:after{right:25px;bottom:52px;background:var(--coral)}
        .art-card-main{
            width:285px;height:340px;background:linear-gradient(145deg,#f36b54,#8c3c70 68%,#35204c);
            border-radius:28px 28px 28px 7px;position:relative;overflow:hidden;
            transform:rotate(-7deg);box-shadow:18px 22px 0 rgba(0,0,0,.18)
        }
        .art-card-main:before{content:"";position:absolute;width:210px;height:210px;border:18px solid rgba(255,255,255,.18);border-radius:50%;top:52px;left:38px}
        .art-card-main:after{content:"✦";position:absolute;color:var(--lime);font-size:130px;left:78px;top:87px;text-shadow:0 0 20px rgba(217,243,106,.35)}
        .art-label{position:absolute;left:25px;bottom:25px;font-size:13px;letter-spacing:.1em;color:#fff;font-weight:800}
        .art-tile{position:absolute;background:var(--mint);color:var(--plum);padding:16px 18px;border-radius:15px;font-weight:900;box-shadow:var(--shadow-soft)}
        .art-tile.one{right:12px;top:35px;transform:rotate(8deg)}
        .art-tile.two{left:4px;bottom:37px;background:var(--lime);transform:rotate(5deg)}
        .art-dot{position:absolute;width:44px;height:44px;border-radius:10px;background:var(--coral);right:60px;bottom:5px;transform:rotate(18deg)}
        .section{padding:96px 0}
        .section.alt{background:var(--paper)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
        .section-kicker{color:var(--coral);margin-bottom:10px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.18;letter-spacing:-.04em;color:var(--plum)}
        .section-desc{max-width:580px;color:var(--muted);font-size:15px}
        .text-link{color:var(--coral-dark);font-weight:800;border-bottom:2px solid rgba(244,93,72,.25);padding-bottom:3px;white-space:nowrap}
        .text-link:hover{border-color:var(--coral)}
        .feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
        .feature-card,.mini-card,.game-card,.topic-card,.info-row,.version-item,.article-feature,.article-mini,.trust-card,.faq-item{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);transition:.25s ease
        }
        .feature-card:hover,.mini-card:hover,.game-card:hover,.topic-card:hover,.article-feature:hover,.article-mini:hover,.trust-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .feature-card{min-height:390px;position:relative;overflow:hidden;padding:34px;background:var(--plum);color:#fff}
        .feature-card .visual{position:absolute;inset:0;background:radial-gradient(circle at 72% 35%,rgba(217,243,106,.9) 0 8%,transparent 8.5%),linear-gradient(135deg,transparent 35%,rgba(244,93,72,.85) 35% 55%,transparent 55%),linear-gradient(145deg,#42245b,#241631)}
        .feature-card .visual:after{content:"PG";position:absolute;right:35px;top:70px;font-size:180px;line-height:1;font-weight:900;color:rgba(255,255,255,.08)}
        .feature-content{position:relative;z-index:1;height:100%;display:flex;flex-direction:column;justify-content:end;max-width:390px}
        .tag{display:inline-flex;width:max-content;padding:5px 9px;border-radius:6px;background:var(--mint);color:var(--plum);font-size:12px;font-weight:900}
        .tag.coral{background:var(--coral);color:#fff}.tag.lime{background:var(--lime);color:var(--plum)}.tag.soft{background:var(--lavender);color:var(--plum)}
        .feature-content h3{font-size:30px;line-height:1.2;margin:14px 0 10px}
        .feature-content p{color:#dfd3e2;font-size:14px}
        .mini-stack{display:grid;gap:20px}
        .mini-card{padding:25px;display:flex;gap:18px;align-items:center;min-height:175px}
        .mini-visual{width:100px;height:120px;border-radius:14px;flex:none;background:linear-gradient(150deg,var(--coral),#f5b45e);position:relative;overflow:hidden}
        .mini-visual:after{content:"✦";font-size:72px;color:#fff;position:absolute;left:18px;top:22px}
        .mini-card:nth-child(2) .mini-visual{background:linear-gradient(150deg,#83d4bd,var(--plum-2))}
        .mini-card:nth-child(3) .mini-visual{background:linear-gradient(150deg,#f2d36b,#8d5278)}
        .mini-card h3{font-size:19px;color:var(--plum);margin:9px 0 5px}.mini-card p{font-size:13px;color:var(--muted)}
        .rail{display:flex;gap:16px;overflow-x:auto;padding:6px 3px 18px;scrollbar-width:thin;scrollbar-color:var(--coral) transparent}
        .game-card{min-width:245px;overflow:hidden;background:var(--paper)}
        .game-cover{height:155px;background:linear-gradient(135deg,#e65e53,#5d356c);position:relative;overflow:hidden}
        .game-cover:before{content:"";position:absolute;width:170px;height:170px;border:14px solid rgba(255,255,255,.18);border-radius:50%;left:39px;top:11px}
        .game-cover:after{content:"✦";position:absolute;font-size:86px;color:var(--lime);left:82px;top:31px}
        .game-card:nth-child(2) .game-cover{background:linear-gradient(135deg,#5b407a,#9bcf9e)}
        .game-card:nth-child(3) .game-cover{background:linear-gradient(135deg,#e48055,#40264f)}
        .game-card:nth-child(4) .game-cover{background:linear-gradient(135deg,#6b426e,#e6bd56)}
        .game-card:nth-child(5) .game-cover{background:linear-gradient(135deg,#49a8a2,#3d315e)}
        .game-body{padding:17px}.game-body h3{font-size:18px;color:var(--plum);margin:10px 0 3px}.game-body p{font-size:13px;color:var(--muted)}
        .game-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-top:13px}
        .topic-mosaic{display:grid;grid-template-columns:1fr 1fr 1.2fr;grid-template-rows:175px 175px;gap:16px}
        .topic-card{padding:25px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end}
        .topic-card:before{content:"";position:absolute;width:150px;height:150px;border-radius:50%;right:-35px;top:-38px;background:rgba(244,93,72,.18)}
        .topic-card:nth-child(1){grid-row:span 2;background:var(--plum);color:#fff}.topic-card:nth-child(1):before{background:rgba(217,243,106,.2);width:230px;height:230px}
        .topic-card:nth-child(2){background:#f5d8c6}.topic-card:nth-child(3){background:#dcefe2}.topic-card:nth-child(4){grid-column:2 / 4;background:#e8ddf0}
        .topic-card h3{position:relative;font-size:20px;line-height:1.25;margin-bottom:6px}.topic-card p{position:relative;font-size:13px;color:var(--muted)}.topic-card:nth-child(1) p{color:#d8cadc}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:30px 28px 30px 0;border-right:1px solid var(--line);margin-right:28px}.step:last-child{border:0;margin:0}
        .step-num{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--coral);color:#fff;font-weight:900;margin-bottom:18px}
        .step h3{font-size:19px;color:var(--plum);margin-bottom:8px}.step p{color:var(--muted);font-size:14px}
        .info-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:start}
        .info-list{display:grid;gap:12px}
        .info-row{padding:20px 22px;display:grid;grid-template-columns:100px 1fr auto;gap:18px;align-items:center}
        .info-date{font-weight:900;color:var(--coral);font-size:13px}.info-content h3{font-size:17px;color:var(--plum);margin-bottom:3px}.info-content p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .info-arrow{color:var(--coral);font-size:22px}
        .empty-state{padding:35px;text-align:center;border:1px dashed #cfc2ce;border-radius:var(--radius);color:var(--muted);background:rgba(255,255,255,.55)}
        .version-panel{background:var(--plum);color:#fff;border-radius:var(--radius);padding:32px}
        .version-panel .section-kicker{color:var(--lime)}.version-panel .section-title{color:#fff}
        .timeline{position:relative;margin-top:27px;padding-left:28px}.timeline:before{content:"";position:absolute;left:5px;top:5px;bottom:5px;width:2px;background:rgba(183,237,197,.35)}
        .version-item{position:relative;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12);padding:18px 20px;margin-bottom:14px}
        .version-item:before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--lime);left:-29px;top:24px;box-shadow:0 0 0 5px rgba(217,243,106,.12)}
        .version-item h3{font-size:17px;margin-bottom:3px}.version-item p{font-size:13px;color:#cbbfd0}.version-item small{color:var(--mint)}
        .download{background:var(--plum);color:#fff;overflow:hidden;position:relative}
        .download:after{content:"";position:absolute;width:450px;height:450px;border:1px solid rgba(217,243,106,.25);border-radius:50%;right:-150px;top:-180px}
        .download-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center;position:relative;z-index:1}
        .download .section-title{color:#fff}.download .section-desc{color:#d9cede}
        .download-copy{padding:20px 0}.download-points{display:grid;gap:12px;margin:24px 0}.download-points li{list-style:none;display:flex;gap:10px;color:#d9cede;font-size:14px}.download-points li:before{content:"✓";color:var(--lime);font-weight:900}
        .device-scene{height:350px;display:flex;justify-content:center;align-items:center;position:relative}
        .device{width:190px;height:325px;border:8px solid #15101e;background:#f7f2e9;border-radius:27px;transform:rotate(8deg);box-shadow:22px 23px 0 rgba(0,0,0,.22);padding:13px;position:relative}
        .device:before{content:"";display:block;width:60px;height:5px;border-radius:5px;background:#d8cbd8;margin:0 auto 18px}
        .screen{height:245px;border-radius:14px;background:linear-gradient(160deg,var(--coral),#6b3a71);position:relative;overflow:hidden}
        .screen:before{content:"PG";position:absolute;color:rgba(255,255,255,.15);font-size:74px;font-weight:900;left:35px;top:72px}
        .screen:after{content:"✦";position:absolute;color:var(--lime);font-size:70px;left:56px;top:81px}
        .device-card{position:absolute;right:28px;bottom:36px;background:var(--lime);color:var(--plum);padding:18px;border-radius:14px;font-weight:900;transform:rotate(-7deg)}
        .content-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .content-link{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:18px 4px;font-weight:800;color:var(--plum);transition:.2s}
        .content-link:hover{color:var(--coral);padding-left:8px}.content-link span{color:var(--coral);font-size:20px}
        .filter-bar{display:flex;align-items:center;gap:9px;flex-wrap:wrap;padding:17px 20px;border:1px solid var(--line);border-radius:14px;background:var(--paper);margin-bottom:24px}
        .filter-label{font-weight:800;color:var(--plum);font-size:14px;margin-right:7px}.filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:99px;padding:7px 14px;font-size:13px;transition:.2s}.filter-btn:hover,.filter-btn.active{background:var(--plum);color:#fff;border-color:var(--plum)}
        .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px;align-items:start}
        .faq-list{display:grid;gap:10px}.faq-item{overflow:hidden}.faq-question{padding:19px 21px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--plum);cursor:pointer}.faq-question span{color:var(--coral);font-size:23px}.faq-answer{display:none;padding:0 21px 20px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question{background:var(--lavender)}
        .trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.trust-card{padding:24px;background:var(--paper)}.trust-icon{font-size:26px;color:var(--coral);margin-bottom:13px}.trust-card h3{font-size:17px;color:var(--plum);margin-bottom:7px}.trust-card p{font-size:13px;color:var(--muted)}
        .article-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.article-feature{padding:30px;background:#f5d8c6;min-height:280px;display:flex;flex-direction:column;justify-content:end}.article-feature h3{font-size:26px;line-height:1.3;color:var(--plum);margin:14px 0 8px}.article-feature p,.article-mini p{font-size:13px;color:var(--muted)}.article-side{display:grid;gap:18px}.article-mini{padding:21px}.article-mini h3{font-size:17px;color:var(--plum);margin:9px 0 5px}.article-meta{font-size:12px;color:var(--coral);font-weight:700}
        .closing{padding:72px 0;background:var(--coral);color:#fff}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing h2{font-size:clamp(28px,4vw,46px);line-height:1.2}.closing p{color:#ffe4dc;margin-top:9px}.closing .btn-secondary{border-color:#fff}
        .site-footer{background:#1b1227;color:#d7ccda;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;padding-bottom:42px}.footer-brand{color:#fff;font-size:20px;font-weight:900;margin-bottom:13px}.footer-copy{font-size:13px;max-width:300px;color:#aa9eaf}.footer-title{color:var(--lime);font-size:14px;font-weight:800;margin-bottom:15px}.footer-links{display:grid;gap:8px;font-size:13px}.footer-links a:hover{color:var(--coral)}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#958799;font-size:12px}
        .quick-bar{display:none}
        @media(max-width:1050px){
            .main-nav{gap:0}.main-nav a{padding:9px 8px;font-size:13px}.nav-action{padding:11px 13px}
            .hero-grid{gap:35px}.feature-grid,.info-layout,.download-grid{gap:25px}
        }
        @media(max-width:820px){
            .container{width:min(var(--max),calc(100% - 34px))}
            .nav-wrap{height:70px}.brand{min-width:0}.brand-sub{display:none}.brand-title{font-size:15px}
            .menu-toggle{display:block}.main-nav{display:none;position:absolute;left:17px;right:17px;top:77px;background:var(--paper);padding:10px;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:13px 15px}.nav-action{display:none}
            .hero{min-height:auto}.hero-grid{grid-template-columns:1fr;padding:68px 0 54px}.hero-art{height:310px;order:-1}.hero h1{font-size:clamp(38px,9vw,58px)}
            .feature-grid,.info-layout,.download-grid,.faq-grid,.article-grid{grid-template-columns:1fr}.feature-card{min-height:350px}
            .topic-mosaic{grid-template-columns:1fr 1fr;grid-template-rows:170px 170px}.topic-card:nth-child(1){grid-row:auto}.topic-card:nth-child(4){grid-column:1 / 3}
            .steps{grid-template-columns:1fr;border:0}.step{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:24px 0}.step:last-child{border:0}
            .download-grid{gap:10px}.device-scene{height:315px}
            .trust-grid{grid-template-columns:1fr 1fr}.section{padding:70px 0}.section-head{display:block}.section-desc{margin-top:13px}.section-head .text-link{display:inline-block;margin-top:15px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-grid>div:first-child{grid-column:1 / 3}
            .closing-inner{display:block}.closing .btn-secondary{margin-top:22px}
        }
        @media(max-width:520px){
            body{font-size:15px}.container{width:calc(100% - 28px)}
            .brand-mark{width:37px;height:37px;font-size:16px}.brand-title{font-size:14px}
            .hero-grid{padding-top:48px}.hero-art{height:270px;transform:scale(.86);margin:-22px 0}
            .hero-lead{font-size:16px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions a{width:100%}.hero-notes{gap:13px}
            .section{padding:56px 0}.section-title{font-size:29px}.feature-card{padding:25px}.feature-content h3{font-size:25px}
            .mini-card{padding:17px;min-height:140px}.mini-visual{width:78px;height:93px}.mini-visual:after{font-size:55px;left:13px;top:17px}
            .topic-mosaic{display:flex;flex-direction:column}.topic-card{min-height:145px}.topic-card:nth-child(1){min-height:180px}.topic-card:nth-child(4){min-height:145px}
            .info-row{grid-template-columns:75px 1fr;gap:10px;padding:16px}.info-arrow{display:none}
            .filter-bar{align-items:flex-start}.filter-label{width:100%;margin-bottom:3px}
            .trust-grid{grid-template-columns:1fr}.content-nav{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:27px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
            .quick-bar{position:fixed;display:flex;left:12px;right:12px;bottom:12px;z-index:30;background:var(--plum);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:8px;justify-content:space-around;box-shadow:0 10px 28px rgba(20,10,30,.25)}.quick-bar a{color:#d9cede;font-size:11px;text-align:center;padding:5px 9px}.quick-bar a strong{display:block;color:var(--lime);font-size:17px;line-height:1.1}.quick-bar a.active{color:#fff}
        }

/* roulang page: article */
:root{
            --coral:#f45d48;
            --coral-dark:#d94837;
            --plum:#261735;
            --plum-2:#3b2352;
            --mint:#b7edc5;
            --lime:#d9f36a;
            --sand:#f8f4ed;
            --paper:#fffdf9;
            --ink:#211c2a;
            --muted:#736b79;
            --line:#e8e0dc;
            --lavender:#eee7f4;
            --shadow:0 18px 50px rgba(47,29,55,.10);
            --shadow-soft:0 8px 24px rgba(47,29,55,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            color:var(--ink);
            background:var(--sand);
            line-height:1.7;
            font-size:16px;
            overflow-x:hidden;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,253,249,.94);
            backdrop-filter:blur(12px);
            border-bottom:1px solid rgba(59,35,82,.10)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:42px;height:42px;border-radius:12px 12px 12px 4px;
            background:var(--coral);color:#fff;display:grid;place-items:center;
            font-weight:900;font-size:18px;letter-spacing:-1px;
            box-shadow:5px 5px 0 var(--plum)
        }
        .brand-copy{display:flex;flex-direction:column;line-height:1.15}
        .brand-title{font-size:17px;font-weight:900;color:var(--plum)}
        .brand-sub{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{
            padding:10px 13px;border-radius:10px;font-size:14px;color:#554c5c;
            transition:.25s ease;white-space:nowrap
        }
        .main-nav a:hover,.main-nav a.active{background:var(--lavender);color:var(--plum);font-weight:700}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .nav-action,.btn-primary{
            background:var(--coral);color:#fff;font-weight:800;padding:12px 19px;
            border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
            transition:.25s ease;box-shadow:0 8px 18px rgba(244,93,72,.22)
        }
        .nav-action:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(244,93,72,.28);color:#fff}
        .menu-toggle{display:none;background:var(--lavender);color:var(--plum);width:43px;height:43px;border-radius:10px;font-size:22px}
        .article-top{background:var(--plum);color:#fff;padding:72px 0 86px;position:relative;overflow:hidden}
        .article-top:before,.article-top:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .article-top:before{width:420px;height:420px;right:-120px;top:-200px;background:rgba(244,93,72,.18)}
        .article-top:after{width:260px;height:260px;left:8%;bottom:-210px;border:1px solid rgba(183,237,197,.25)}
        .article-top-inner{position:relative;z-index:1;max-width:900px}
        .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#c9bdce;font-size:13px;margin-bottom:28px}
        .breadcrumb a:hover{color:var(--lime)}
        .breadcrumb .divider{color:var(--coral)}
        .article-label,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;
            color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em
        }
        .article-label:before,.section-kicker:before{content:"";width:26px;height:3px;background:var(--coral);border-radius:3px}
        .article-title{font-size:clamp(34px,5vw,62px);line-height:1.18;letter-spacing:-.045em;margin:16px 0 20px;color:#fff}
        .article-summary{max-width:760px;color:#d9cede;font-size:18px;margin:0}
        .article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px;color:#c0b3c5;font-size:13px}
        .meta-item{display:flex;align-items:center;gap:7px}
        .meta-dot{width:7px;height:7px;border-radius:50%;background:var(--mint)}
        .article-section{padding:68px 0}
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:54px;align-items:start}
        .article-body{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            padding:clamp(26px,5vw,58px);box-shadow:var(--shadow-soft);overflow:hidden
        }
        .article-body h2{font-size:30px;line-height:1.3;color:var(--plum);margin:34px 0 16px}
        .article-body h3{font-size:22px;line-height:1.4;color:var(--plum-2);margin:28px 0 12px}
        .article-body p{margin:0 0 19px;color:#4f4755}
        .article-body ul,.article-body ol{padding-left:24px;margin:16px 0 24px;color:#4f4755}
        .article-body li{margin:8px 0}
        .article-body blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--coral);background:var(--lavender);color:var(--plum);border-radius:0 12px 12px 0}
        .article-body img{border-radius:14px;margin:26px auto}
        .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
        .article-body th,.article-body td{padding:12px;border:1px solid var(--line);text-align:left}
        .article-body th{background:var(--lavender);color:var(--plum)}
        .article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
        .empty-state{text-align:center;padding:48px 20px;color:var(--muted)}
        .side-stack{display:grid;gap:16px;position:sticky;top:105px}
        .side-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px}
        .side-card.dark{background:var(--plum);color:#fff;border-color:var(--plum)}
        .side-title{font-size:18px;font-weight:900;color:var(--plum);margin-bottom:12px}
        .dark .side-title{color:#fff}
        .side-card p{font-size:14px;color:var(--muted);margin:0 0 16px}
        .dark p{color:#d9cede}
        .side-list{display:grid;gap:10px}
        .side-list a{font-size:14px;color:#5c5362;padding:9px 0;border-bottom:1px solid var(--line)}
        .side-list a:hover{color:var(--coral-dark)}
        .reading-note{display:flex;gap:14px;align-items:flex-start;background:var(--mint);border-radius:14px;padding:17px 19px;color:var(--plum);font-size:14px}
        .note-mark{font-size:20px;font-weight:900;color:var(--coral-dark)}
        .related-section{background:var(--paper);padding:70px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}
        .section-kicker{color:var(--coral);margin-bottom:8px}
        .section-title{font-size:clamp(28px,3.3vw,40px);line-height:1.2;letter-spacing:-.04em;color:var(--plum);margin:0}
        .section-desc{max-width:580px;color:var(--muted);font-size:15px;margin:0}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .related-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--sand);transition:.25s ease}
        .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:var(--coral)}
        .related-card .tag{display:inline-flex;background:var(--lavender);color:var(--plum-2);font-size:12px;font-weight:800;padding:5px 9px;border-radius:7px;margin-bottom:16px}
        .related-card h3{font-size:19px;line-height:1.45;color:var(--plum);margin:0 0 9px}
        .related-card p{font-size:14px;color:var(--muted);margin:0 0 18px}
        .text-link{color:var(--coral-dark);font-weight:800;border-bottom:2px solid rgba(244,93,72,.25);padding-bottom:3px}
        .text-link:hover{border-color:var(--coral)}
        .closing{padding:70px 0}
        .closing-box{background:var(--plum);border-radius:var(--radius);padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:28px;color:#fff}
        .closing-box h2{font-size:30px;margin:0 0 8px}
        .closing-box p{color:#d9cede;margin:0}
        .site-footer{background:var(--plum);color:#fff;padding:58px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:42px}
        .footer-brand{font-size:20px;font-weight:900;margin-bottom:14px}
        .footer-copy{color:#c9bdce;font-size:14px;max-width:380px;margin:0}
        .footer-title{font-weight:800;margin-bottom:14px;color:var(--lime)}
        .footer-links{display:grid;gap:8px}
        .footer-links a{color:#d9cede;font-size:14px;transition:.2s}
        .footer-links a:hover{color:#fff;padding-left:4px}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#aa9caf;font-size:12px}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media (max-width:1024px){
            .main-nav{gap:2px}.main-nav a{padding:9px 8px}
            .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:26px}
        }
        @media (max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:70px}.brand{min-width:0}.brand-sub{display:none}
            .nav-action{display:none}.menu-toggle{display:block}
            .main-nav{display:none;position:absolute;top:70px;left:16px;right:16px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .main-nav.open{display:flex}.main-nav a{padding:13px 15px}
            .article-top{padding:52px 0 62px}
            .article-layout{display:block}.side-stack{position:static;margin-top:24px}
            .article-section{padding:42px 0}.related-section,.closing{padding:48px 0}
            .related-grid{grid-template-columns:1fr}
            .closing-box{padding:30px 25px;display:block}.closing-box .btn-primary{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-grid>div:first-child{grid-column:1/-1}
        }
        @media (max-width:520px){
            .brand-title{font-size:15px}.brand-mark{width:38px;height:38px;font-size:16px}
            .article-title{font-size:34px}.article-summary{font-size:16px}
            .article-body{padding:24px 20px}.article-body h2{font-size:25px}
            .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}
        }

/* roulang page: category1 */
:root{
            --coral:#f45d48;
            --coral-dark:#d94837;
            --plum:#261735;
            --plum-2:#3b2352;
            --mint:#b7edc5;
            --lime:#d9f36a;
            --sand:#f8f4ed;
            --paper:#fffdf9;
            --ink:#211c2a;
            --muted:#736b79;
            --line:#e8e0dc;
            --lavender:#eee7f4;
            --shadow:0 18px 50px rgba(47,29,55,.10);
            --shadow-soft:0 8px 24px rgba(47,29,55,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            color:var(--ink);
            background:var(--sand);
            line-height:1.7;
            font-size:16px;
            overflow-x:hidden;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,253,249,.95);
            backdrop-filter:blur(12px);
            border-bottom:1px solid rgba(59,35,82,.1)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:42px;height:42px;border-radius:12px 12px 12px 4px;
            background:var(--coral);color:#fff;display:grid;place-items:center;
            font-weight:900;font-size:18px;letter-spacing:-1px;
            box-shadow:5px 5px 0 var(--plum)
        }
        .brand-copy{display:flex;flex-direction:column;line-height:1.15}
        .brand-title{font-size:17px;font-weight:900;color:var(--plum)}
        .brand-sub{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{
            padding:10px 13px;border-radius:10px;font-size:14px;color:#554c5c;
            transition:.25s ease;white-space:nowrap
        }
        .main-nav a:hover,.main-nav a.active{background:var(--lavender);color:var(--plum);font-weight:700}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .nav-action,.btn-primary{
            background:var(--coral);color:#fff;font-weight:800;padding:12px 19px;
            border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
            transition:.25s ease;box-shadow:0 8px 18px rgba(244,93,72,.22)
        }
        .nav-action:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);color:#fff}
        .menu-toggle{display:none;background:var(--lavender);color:var(--plum);width:43px;height:43px;border-radius:10px;font-size:22px}
        .page-intro{
            background:var(--plum);color:#fff;padding:76px 0 82px;position:relative;overflow:hidden
        }
        .page-intro:before,.page-intro:after{
            content:"";position:absolute;border-radius:50%;pointer-events:none
        }
        .page-intro:before{
            width:430px;height:430px;right:-100px;top:-180px;
            border:1px solid rgba(217,243,106,.25);box-shadow:0 0 0 30px rgba(244,93,72,.07),0 0 0 70px rgba(244,93,72,.04)
        }
        .page-intro:after{
            width:180px;height:180px;left:12%;bottom:-120px;background:rgba(183,237,197,.12)
        }
        .intro-inner{position:relative;z-index:1;max-width:850px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em
        }
        .eyebrow{color:var(--lime);margin-bottom:18px}
        .eyebrow:before,.section-kicker:before{content:"";width:26px;height:3px;background:var(--coral);border-radius:3px}
        .page-intro h1{font-size:clamp(40px,6vw,70px);line-height:1.1;letter-spacing:-.06em;margin:0 0 20px}
        .page-intro h1 em{font-style:normal;color:var(--lime)}
        .intro-lead{max-width:720px;color:#d9cede;font-size:18px;margin:0}
        .crumbs{margin-top:27px;font-size:13px;color:#c7b8cc}
        .crumbs a:hover{color:var(--lime)}
        .section{padding:88px 0}
        .section.alt{background:var(--paper)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
        .section-kicker{color:var(--coral);margin-bottom:9px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin:0}
        .section-desc{max-width:590px;color:var(--muted);font-size:15px;margin:0}
        .filter-bar{
            display:flex;align-items:center;gap:10px;flex-wrap:wrap;
            padding:15px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            box-shadow:var(--shadow-soft)
        }
        .filter-label{font-weight:800;color:var(--plum);margin-right:8px}
        .filter{
            padding:8px 15px;border-radius:9px;background:var(--sand);color:var(--muted);
            border:1px solid transparent;transition:.2s ease;font-size:14px
        }
        .filter:hover,.filter.active{background:var(--plum);color:#fff;border-color:var(--plum)}
        .game-list{display:grid;grid-template-columns:1.12fr .88fr;gap:22px}
        .game-feature,.game-item,.theme-panel,.info-panel,.faq-item{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            transition:.25s ease
        }
        .game-feature{overflow:hidden;min-height:420px;position:relative;background:var(--plum);color:#fff;padding:34px}
        .game-feature:hover,.game-item:hover,.theme-panel:hover,.info-panel:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .game-feature .orb{
            position:absolute;width:270px;height:270px;border:22px solid rgba(244,93,72,.72);
            border-radius:50%;right:-38px;top:48px;transform:rotate(23deg)
        }
        .game-feature .orb:after{content:"✦";position:absolute;color:var(--lime);font-size:120px;top:25px;left:55px}
        .game-feature-content{position:relative;z-index:1;max-width:55%}
        .badge{
            display:inline-flex;padding:5px 10px;border-radius:20px;font-size:12px;font-weight:800;
            background:var(--mint);color:var(--plum);margin-bottom:19px
        }
        .badge.coral{background:var(--coral);color:#fff}
        .game-feature h3{font-size:30px;line-height:1.25;margin:0 0 12px}
        .game-feature p{color:#d9cede;font-size:15px}
        .game-side{display:grid;gap:16px}
        .game-item{padding:22px;display:grid;grid-template-columns:92px 1fr;gap:18px;align-items:center}
        .game-thumb{
            height:100px;border-radius:14px;display:grid;place-items:center;font-size:35px;
            color:#fff;font-weight:900;position:relative;overflow:hidden
        }
        .game-thumb:after{content:"";position:absolute;width:80px;height:80px;border:9px solid rgba(255,255,255,.25);border-radius:50%;right:-18px;bottom:-22px}
        .thumb-one{background:linear-gradient(145deg,#e47b4e,#5a2e66)}
        .thumb-two{background:linear-gradient(145deg,#4f9d91,#30234d)}
        .thumb-three{background:linear-gradient(145deg,#f09b3d,#b13f58)}
        .game-item h3{font-size:20px;color:var(--plum);margin:0 0 5px}
        .game-item p{font-size:14px;color:var(--muted);margin:0 0 8px}
        .mini-tag{font-size:12px;color:var(--coral-dark);font-weight:800}
        .rail{display:flex;gap:16px;overflow-x:auto;padding:5px 3px 18px;scrollbar-color:var(--coral) transparent}
        .rail-card{flex:0 0 255px;background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s ease}
        .rail-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .rail-art{height:145px;padding:18px;display:flex;align-items:flex-end;color:#fff;font-size:24px;font-weight:900;position:relative}
        .rail-art:before{content:"";position:absolute;width:105px;height:105px;border:12px solid rgba(255,255,255,.22);border-radius:50%;right:20px;top:20px}
        .rail-card:nth-child(1) .rail-art{background:#6e3d74}
        .rail-card:nth-child(2) .rail-art{background:#ee744d}
        .rail-card:nth-child(3) .rail-art{background:#397e79}
        .rail-card:nth-child(4) .rail-art{background:#6f6299}
        .rail-body{padding:17px}
        .rail-body h3{font-size:18px;margin:0 0 5px;color:var(--plum)}
        .rail-body p{font-size:13px;color:var(--muted);margin:0}
        .theme-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .theme-panel{min-height:190px;padding:22px;position:relative;overflow:hidden}
        .theme-panel:nth-child(1){background:#f8d9c9}
        .theme-panel:nth-child(2){background:#ded9f0}
        .theme-panel:nth-child(3){background:#d3eedc}
        .theme-panel:nth-child(4){background:#f1e3a9}
        .theme-no{font-size:42px;color:rgba(38,23,53,.14);font-weight:900;line-height:1}
        .theme-panel h3{font-size:19px;color:var(--plum);margin:22px 0 6px}
        .theme-panel p{font-size:13px;color:#65566b;margin:0}
        .split-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:58px;align-items:center}
        .info-panel{padding:32px}
        .info-panel.dark{background:var(--plum);color:#fff;border-color:var(--plum)}
        .info-panel.dark h2{color:#fff}
        .info-panel h2{font-size:31px;color:var(--plum);line-height:1.25;margin:0 0 14px}
        .info-panel p{color:var(--muted);margin:0}
        .info-panel.dark p{color:#d9cede}
        .step-list{display:grid;gap:18px}
        .step{display:grid;grid-template-columns:44px 1fr;gap:15px;align-items:start}
        .step-number{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900}
        .step h3{font-size:17px;margin:0 0 3px;color:var(--plum)}
        .step p{font-size:14px;color:var(--muted);margin:0}
        .dark .step h3{color:#fff}.dark .step p{color:#c7b8cc}
        .content-band{background:var(--lavender);padding:24px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:20px}
        .content-band strong{display:block;color:var(--plum);font-size:19px}
        .content-band span{color:var(--muted);font-size:14px}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .faq-item{padding:20px 22px}
        .faq-item summary{cursor:pointer;list-style:none;font-weight:800;color:var(--plum);position:relative;padding-right:25px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"＋";position:absolute;right:0;color:var(--coral);font-size:20px;top:-3px}
        .faq-item[open] summary:after{content:"－"}
        .faq-item p{color:var(--muted);font-size:14px;margin:12px 0 0;padding-top:12px;border-top:1px solid var(--line)}
        .cta-strip{background:var(--coral);color:#fff;padding:48px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}
        .cta-inner h2{font-size:30px;margin:0 0 6px}.cta-inner p{margin:0;color:#ffe2dc}
        .btn-light{background:#fff;color:var(--plum);padding:12px 20px;border-radius:10px;font-weight:800;display:inline-flex;transition:.25s ease}
        .btn-light:hover{background:var(--lime);transform:translateY(-2px)}
        .site-footer{background:var(--plum);color:#fff;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}
        .footer-brand{font-size:21px;font-weight:900;margin-bottom:12px}
        .footer-copy{color:#c7b8cc;max-width:390px;font-size:14px;margin:0}
        .footer-title{font-weight:800;color:var(--lime);margin-bottom:14px}
        .footer-links{display:grid;gap:8px}
        .footer-links a{color:#d9cede;font-size:14px;transition:.2s ease}
        .footer-links a:hover{color:var(--lime);padding-left:4px}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#a99bae;font-size:12px}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media(max-width:1024px){
            .nav-action{display:none}.main-nav{gap:2px}.main-nav a{padding:9px 8px}
            .theme-grid{grid-template-columns:repeat(2,1fr)}
            .split-panel{gap:30px}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:70px}.brand{min-width:auto}.brand-title{font-size:15px}.brand-sub{font-size:10px}
            .menu-toggle{display:block}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:78px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .main-nav.open{display:flex}.main-nav a{text-align:center;padding:12px}
            .page-intro{padding:58px 0 62px}.page-intro h1{font-size:43px}.intro-lead{font-size:16px}
            .section{padding:65px 0}.section-head{display:block}.section-desc{margin-top:12px}
            .game-list,.split-panel{grid-template-columns:1fr}
            .game-feature{min-height:360px}.game-feature-content{max-width:70%}
            .faq-grid{grid-template-columns:1fr}.content-band,.cta-inner{display:block}
            .content-band .btn-primary,.cta-inner .btn-light{margin-top:17px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .brand-mark{width:38px;height:38px;font-size:16px}.brand-title{font-size:13px}
            .page-intro h1{font-size:37px}.game-feature{padding:25px}.game-feature-content{max-width:100%}.game-feature .orb{opacity:.45;right:-75px}
            .game-item{grid-template-columns:76px 1fr;padding:15px;gap:13px}.game-thumb{height:82px}
            .theme-grid{grid-template-columns:1fr 1fr;gap:10px}.theme-panel{min-height:175px;padding:16px}.theme-panel h3{font-size:16px;margin-top:17px}
            .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
        }

/* roulang page: category2 */
:root{
            --coral:#f45d48;--coral-dark:#d94837;--plum:#261735;--plum-2:#3b2352;
            --mint:#b7edc5;--lime:#d9f36a;--sand:#f8f4ed;--paper:#fffdf9;
            --ink:#211c2a;--muted:#736b79;--line:#e8e0dc;--lavender:#eee7f4;
            --shadow:0 18px 50px rgba(47,29,55,.10);--shadow-soft:0 8px 24px rgba(47,29,55,.08);
            --radius:18px;--radius-sm:12px;--max:1220px
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--sand);line-height:1.7;font-size:16px;overflow-x:hidden}
        a{color:inherit;text-decoration:none} img{max-width:100%;display:block} button,input{font:inherit} button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,249,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(59,35,82,.1)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{width:42px;height:42px;border-radius:12px 12px 12px 4px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:18px;box-shadow:5px 5px 0 var(--plum)}
        .brand-copy{display:flex;flex-direction:column;line-height:1.15}.brand-title{font-size:17px;font-weight:900;color:var(--plum)}.brand-sub{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
        .main-nav{display:flex;align-items:center;gap:7px}.main-nav a{padding:10px 13px;border-radius:10px;font-size:14px;color:#554c5c;transition:.25s ease;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{background:var(--lavender);color:var(--plum);font-weight:700}.main-nav a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .nav-action,.btn-primary{background:var(--coral);color:#fff;font-weight:800;padding:12px 19px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;transition:.25s ease;box-shadow:0 8px 18px rgba(244,93,72,.22)}
        .nav-action:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(244,93,72,.28)}
        .menu-toggle{display:none;background:var(--lavender);color:var(--plum);width:43px;height:43px;border-radius:10px;font-size:22px}
        .page-intro{background:var(--plum);color:#fff;padding:78px 0 76px;position:relative;overflow:hidden}
        .page-intro:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(183,237,197,.28);border-radius:50%;right:-90px;top:-210px}
        .page-intro:after{content:"";position:absolute;width:180px;height:180px;background:rgba(244,93,72,.18);border-radius:32px;right:18%;bottom:-100px;transform:rotate(24deg)}
        .intro-inner{position:relative;z-index:1;max-width:820px}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em}
        .eyebrow{color:var(--lime);margin-bottom:18px}.eyebrow:before{content:"";width:26px;height:3px;background:var(--coral);border-radius:3px}
        h1{font-size:clamp(38px,6vw,64px);line-height:1.12;letter-spacing:-.05em;margin:0 0 22px}.intro-lead{font-size:18px;color:#d9cede;max-width:720px;margin:0}
        .breadcrumb{display:flex;gap:10px;align-items:center;color:#bcaec2;font-size:13px;margin-top:30px}.breadcrumb a:hover{color:var(--lime)}
        .section{padding:88px 0}.section.alt{background:var(--paper)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
        .section-kicker{color:var(--coral);margin-bottom:9px}.section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin:0}
        .section-desc{max-width:600px;color:var(--muted);font-size:15px;margin:8px 0 0}.text-link{color:var(--coral-dark);font-weight:800;border-bottom:2px solid rgba(244,93,72,.25);padding-bottom:3px;white-space:nowrap}.text-link:hover{border-color:var(--coral)}
        .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
        .filter{border:1px solid var(--line);background:#fff;color:var(--muted);padding:9px 15px;border-radius:30px;font-size:14px;transition:.2s}.filter:hover,.filter.active{background:var(--plum);border-color:var(--plum);color:#fff}
        .news-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}.news-list{display:grid;gap:12px}
        .news-card,.focus-card,.timeline-item,.faq-item,.topic-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
        .news-card:hover,.focus-card:hover,.topic-panel:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .news-card{display:grid;grid-template-columns:118px 1fr;gap:22px;padding:24px}.date-box{background:var(--lavender);border-radius:13px;padding:14px;height:max-content;text-align:center;color:var(--plum);font-weight:800;font-size:13px}.date-box strong{display:block;font-size:28px;line-height:1.1;color:var(--coral)}
        .news-card h3,.focus-card h3,.topic-panel h3{font-size:20px;line-height:1.35;color:var(--plum);margin:0 0 8px}.news-card p,.focus-card p,.topic-panel p{color:var(--muted);font-size:14px;margin:0 0 12px}.meta{font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}.tag{display:inline-flex;background:var(--mint);color:#28563a;border-radius:20px;padding:3px 9px;font-size:12px;font-weight:800}
        .focus-card{padding:28px;background:var(--plum);color:#fff;min-height:100%}.focus-card h3{color:#fff;font-size:27px}.focus-card p{color:#d9cede}.focus-mark{height:150px;border-radius:15px;margin-bottom:24px;background:linear-gradient(135deg,var(--coral),#8d477c 58%,var(--plum-2));position:relative;overflow:hidden}.focus-mark:before{content:"✦";position:absolute;font-size:100px;color:var(--lime);right:24px;top:18px;opacity:.85}.focus-mark:after{content:"PG";position:absolute;font-size:54px;font-weight:900;left:24px;bottom:10px;color:rgba(255,255,255,.25)}
        .timeline{border-left:2px solid var(--lavender);margin-left:12px;padding-left:30px;display:grid;gap:24px}.timeline-item{padding:22px 24px;position:relative}.timeline-item:before{content:"";position:absolute;width:13px;height:13px;background:var(--coral);border:3px solid var(--sand);border-radius:50%;left:-38px;top:28px}.timeline-item h3{margin:0;color:var(--plum);font-size:19px}.timeline-item p{margin:7px 0 0;color:var(--muted);font-size:14px}
        .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.topic-panel{padding:25px;min-height:190px}.topic-panel:nth-child(2){background:#f2e9f7}.topic-panel:nth-child(3){background:#eef8e9}.topic-panel:nth-child(4){background:#fff0e9}.topic-icon{font-size:30px;margin-bottom:18px}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}.faq-side{background:var(--plum);border-radius:var(--radius);padding:30px;color:#fff}.faq-side h2{margin:0 0 12px;font-size:30px}.faq-side p{color:#d9cede;margin:0}.faq-list{display:grid;gap:10px}.faq-item{overflow:hidden}.faq-question{width:100%;background:transparent;color:var(--plum);padding:19px 22px;text-align:left;font-weight:800;display:flex;justify-content:space-between;align-items:center}.faq-question span{font-size:22px;color:var(--coral)}.faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}
        .cta{background:var(--coral);color:#fff;padding:52px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:34px;margin:0 0 8px}.cta p{margin:0;color:#ffe3dc}.btn-light{background:#fff;color:var(--plum);padding:13px 20px;border-radius:10px;font-weight:800;display:inline-flex;transition:.25s}.btn-light:hover{color:var(--plum);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
        .site-footer{background:var(--plum);color:#fff;padding:62px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px}.footer-brand{font-size:21px;font-weight:900;margin-bottom:14px}.footer-copy{color:#c9bccd;max-width:390px;font-size:14px}.footer-title{font-weight:800;margin-bottom:15px;color:var(--lime)}.footer-links{display:grid;gap:8px;color:#c9bccd;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:20px;color:#a99bae;font-size:12px}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media(max-width:1024px){.main-nav{gap:2px}.main-nav a{padding:9px 8px}.topic-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){.container{width:min(var(--max),calc(100% - 32px))}.nav-wrap{height:70px}.brand{min-width:0}.brand-title{font-size:14px}.brand-sub{font-size:10px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:70px;left:16px;right:16px;background:var(--paper);padding:12px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.show{display:flex}.main-nav a{text-align:center}.nav-action{display:none}.page-intro{padding:60px 0}.section{padding:65px 0}.section-head,.cta-inner{display:block}.section-head .text-link{display:inline-block;margin-top:18px}.news-layout,.faq-grid{grid-template-columns:1fr;gap:20px}.topic-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
        @media(max-width:520px){h1{font-size:39px}.intro-lead{font-size:16px}.news-card{grid-template-columns:1fr;gap:13px;padding:19px}.date-box{text-align:left;display:flex;align-items:center;gap:12px;width:max-content;padding:8px 13px}.date-box strong{font-size:21px}.topic-grid{grid-template-columns:1fr}.cta h2{font-size:28px}.btn-light{margin-top:22px}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category3 */
:root{
            --coral:#f45d48;
            --coral-dark:#d94837;
            --plum:#261735;
            --plum-2:#3b2352;
            --mint:#b7edc5;
            --lime:#d9f36a;
            --sand:#f8f4ed;
            --paper:#fffdf9;
            --ink:#211c2a;
            --muted:#736b79;
            --line:#e8e0dc;
            --lavender:#eee7f4;
            --shadow:0 18px 50px rgba(47,29,55,.10);
            --shadow-soft:0 8px 24px rgba(47,29,55,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            color:var(--ink);
            background:var(--sand);
            line-height:1.7;
            font-size:16px;
            overflow-x:hidden;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,253,249,.95);
            backdrop-filter:blur(12px);
            border-bottom:1px solid rgba(59,35,82,.10)
        }
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
        .brand{display:flex;align-items:center;gap:12px;min-width:250px}
        .brand-mark{
            width:42px;height:42px;border-radius:12px 12px 12px 4px;
            background:var(--coral);color:#fff;display:grid;place-items:center;
            font-weight:900;font-size:18px;letter-spacing:-1px;
            box-shadow:5px 5px 0 var(--plum)
        }
        .brand-copy{display:flex;flex-direction:column;line-height:1.15}
        .brand-title{font-size:17px;font-weight:900;color:var(--plum)}
        .brand-sub{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{
            padding:10px 13px;border-radius:10px;font-size:14px;color:#554c5c;
            transition:.25s ease;white-space:nowrap
        }
        .main-nav a:hover,.main-nav a.active{background:var(--lavender);color:var(--plum);font-weight:700}
        .main-nav a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .nav-action,.btn-primary{
            background:var(--coral);color:#fff;font-weight:800;padding:12px 19px;
            border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
            transition:.25s ease;box-shadow:0 8px 18px rgba(244,93,72,.22)
        }
        .nav-action:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(244,93,72,.28);color:#fff}
        .menu-toggle{display:none;background:var(--lavender);color:var(--plum);width:43px;height:43px;border-radius:10px;font-size:22px}
        .page-intro{
            background:var(--plum);color:#fff;padding:82px 0 78px;position:relative;overflow:hidden
        }
        .page-intro:before,.page-intro:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .page-intro:before{width:420px;height:420px;right:-130px;top:-180px;background:rgba(244,93,72,.18)}
        .page-intro:after{width:260px;height:260px;left:52%;bottom:-190px;border:1px solid rgba(183,237,197,.3)}
        .intro-inner{position:relative;z-index:1;max-width:790px}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em}
        .eyebrow{color:var(--lime);margin-bottom:18px}
        .eyebrow:before,.section-kicker:before{content:"";width:26px;height:3px;background:var(--coral);border-radius:3px}
        .page-intro h1{font-size:clamp(40px,6vw,66px);line-height:1.12;letter-spacing:-.05em;margin:0 0 22px}
        .page-intro h1 em{font-style:normal;color:var(--lime)}
        .intro-lead{font-size:18px;color:#d9cede;max-width:700px;margin:0}
        .crumbs{margin-top:30px;color:#c6b9ca;font-size:13px}
        .crumbs a:hover{color:var(--lime)}
        .section{padding:88px 0}
        .section.alt{background:var(--paper)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
        .section-kicker{color:var(--coral);margin-bottom:10px}
        .section-title{font-size:clamp(28px,3.3vw,42px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin:0}
        .section-desc{max-width:600px;color:var(--muted);font-size:15px;margin:0}
        .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
        .tag{display:inline-flex;padding:7px 13px;border-radius:30px;background:var(--lavender);color:var(--plum-2);font-size:13px;font-weight:700}
        .tag.hot{background:var(--mint)}
        .download-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:stretch}
        .device-stage{
            min-height:410px;border-radius:var(--radius);background:#332044;position:relative;overflow:hidden;
            display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)
        }
        .device-stage:before{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(217,243,106,.35);border-radius:50%}
        .device-stage:after{content:"✦";position:absolute;right:28px;top:20px;color:var(--lime);font-size:58px;opacity:.75}
        .phone{
            width:190px;height:350px;border:8px solid #171021;border-radius:28px;background:linear-gradient(150deg,#f45d48 0 35%,#633d72 36% 70%,#b7edc5 71%);
            position:relative;z-index:1;transform:rotate(-7deg);box-shadow:18px 20px 0 rgba(0,0,0,.18)
        }
        .phone:before{content:"PG游戏";position:absolute;top:25px;left:22px;color:#fff;font-size:15px;font-weight:900}
        .phone:after{content:"✦  ◇  ✹";position:absolute;left:20px;bottom:45px;color:var(--plum);font-size:22px;letter-spacing:7px}
        .screen-line{position:absolute;left:22px;right:22px;height:9px;border-radius:8px;background:rgba(255,255,255,.45);top:78px}
        .screen-line.two{top:103px;width:72%}
        .download-copy{padding:38px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}
        .download-copy h2{color:var(--plum);font-size:30px;line-height:1.25;margin:0 0 15px}
        .download-copy p{color:var(--muted);margin:0 0 22px}
        .bullet-list,.prep-list{padding:0;margin:0;list-style:none}
        .bullet-list li,.prep-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);color:#514957}
        .bullet-list li:before{content:"✓";width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:var(--mint);color:var(--plum);font-weight:900;flex:0 0 auto}
        .method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .method-card,.prep-panel,.timeline,.faq-item,.game-strip,.close-panel{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)
        }
        .method-card{padding:27px;position:relative}
        .method-number{font-size:46px;line-height:1;color:var(--coral);font-weight:900;opacity:.85}
        .method-card h3{font-size:20px;color:var(--plum);margin:18px 0 8px}
        .method-card p,.prep-panel p{color:var(--muted);font-size:14px;margin:0}
        .prep-layout{display:grid;grid-template-columns:1fr .8fr;gap:22px}
        .prep-panel{padding:30px}
        .prep-panel h3{color:var(--plum);font-size:23px;margin:0 0 15px}
        .prep-list li:before{content:"•";color:var(--coral);font-size:25px;line-height:1}
        .timeline{padding:30px 34px}
        .timeline-item{display:grid;grid-template-columns:130px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
        .timeline-item:last-child{border-bottom:0}
        .timeline-date{color:var(--coral-dark);font-size:13px;font-weight:800}
        .timeline-item h3{font-size:19px;color:var(--plum);margin:0 0 5px}
        .timeline-item p{color:var(--muted);font-size:14px;margin:0}
        .status{display:inline-flex;padding:4px 9px;background:var(--mint);border-radius:20px;color:var(--plum);font-size:11px;font-weight:800;margin-left:8px}
        .faq-list{display:grid;gap:12px;max-width:900px}
        .faq-item{overflow:hidden}
        .faq-item summary{padding:19px 22px;color:var(--plum);font-weight:800;cursor:pointer;list-style:none;position:relative;padding-right:55px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"＋";position:absolute;right:22px;color:var(--coral);font-size:22px;top:14px}
        .faq-item[open] summary:after{content:"－"}
        .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px}
        .game-strip{display:flex;gap:16px;padding:19px;align-items:center}
        .game-art{width:112px;height:86px;border-radius:13px;flex:0 0 auto;background:linear-gradient(135deg,var(--coral),var(--plum-2));display:grid;place-items:center;color:var(--lime);font-size:35px;font-weight:900}
        .game-strip h3{font-size:18px;color:var(--plum);margin:0 0 4px}
        .game-strip p{color:var(--muted);font-size:14px;margin:0}
        .close-panel{background:var(--plum);color:#fff;padding:42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .close-panel h2{font-size:30px;margin:0 0 8px}
        .close-panel p{color:#d9cede;margin:0}
        .btn-secondary{
            color:#fff;border:1px solid rgba(255,255,255,.28);padding:11px 18px;border-radius:10px;
            display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.25s ease;white-space:nowrap
        }
        .btn-secondary:hover{background:rgba(255,255,255,.1);border-color:var(--mint);transform:translateY(-2px);color:#fff}
        .site-footer{background:#1d1229;color:#d9cede;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}
        .footer-brand{font-size:20px;font-weight:900;color:#fff;margin-bottom:12px}
        .footer-copy{max-width:390px;color:#aa9db1;font-size:14px;margin:0}
        .footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
        .footer-links{display:grid;gap:9px}
        .footer-links a{color:#c7bacd;font-size:14px;transition:.2s}
        .footer-links a:hover{color:#fff;transform:translateX(3px)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#95879d;font-size:12px;flex-wrap:wrap}
        :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
        @media(max-width:1024px){
            .main-nav{gap:2px}.main-nav a{padding:9px 8px}.brand{min-width:220px}
            .download-layout,.prep-layout{grid-template-columns:1fr}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:70px}.brand{min-width:0}.brand-title{font-size:15px}.brand-sub{font-size:10px}
            .menu-toggle{display:block}
            .main-nav{display:none;position:absolute;left:16px;right:16px;top:78px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .main-nav.open{display:flex}.main-nav a{text-align:center;padding:12px}
            .nav-action{display:none}
            .page-intro{padding:64px 0 58px}.page-intro h1{font-size:42px}
            .section{padding:65px 0}.section-head{display:block}.section-desc{margin-top:12px}
            .method-grid{grid-template-columns:1fr}.device-stage{min-height:340px}.download-copy{padding:27px}
            .timeline-item{grid-template-columns:1fr;gap:5px}.close-panel{display:block;padding:30px}
            .close-panel .btn-secondary{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
        }
        @media(max-width:520px){
            .brand-mark{width:38px;height:38px;font-size:16px}.brand-title{font-size:14px}
            .page-intro h1{font-size:36px}.intro-lead{font-size:16px}
            .section-title{font-size:30px}.device-stage{min-height:300px}
            .phone{transform:scale(.86) rotate(-7deg)}.game-strip{align-items:flex-start}.game-art{width:86px;height:72px}
            .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
            .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
        }