/* roulang page: index */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        :focus-visible{outline:3px solid rgba(242,99,79,.38);outline-offset:4px}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{height:76px;border-bottom:1px solid rgba(232,224,235,.8);background:rgba(255,253,251,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime)}
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease}
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .hero{padding:80px 0 72px;overflow:hidden;background:linear-gradient(120deg,#fffdfb 35%,#f4f0fa 100%)}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:72px;align-items:center}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:1.2px}
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-2.8px;margin:20px 0 22px;max-width:720px}
        .hero-copy{max-width:600px;color:var(--muted);font-size:18px}
        .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .hero-note{display:flex;gap:20px;align-items:center;margin-top:27px;color:var(--muted);font-size:13px}
        .status-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(184,220,84,.2)}
        .entry-art{position:relative;min-height:390px;border-radius:28px;background:var(--ink);padding:30px;color:#fff;box-shadow:var(--shadow);overflow:hidden}
        .entry-art:before{content:"";position:absolute;width:250px;height:250px;background:var(--purple);border-radius:50%;right:-80px;top:-80px;opacity:.65}
        .entry-art:after{content:"";position:absolute;width:150px;height:150px;background:var(--coral);border-radius:50%;left:-65px;bottom:-70px;opacity:.8}
        .art-head{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center}
        .art-head strong{font-size:17px}.art-label{background:rgba(255,255,255,.12);padding:6px 10px;border-radius:20px;font-size:12px}
        .path-card{position:relative;z-index:1;margin:46px 0 22px;background:#fff;color:var(--ink);border-radius:17px;padding:22px}
        .path-card small{color:var(--muted);display:block;margin-bottom:6px}.path-card b{font-size:21px}
        .path-line{height:1px;background:var(--line);margin:18px 0}
        .path-row{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
        .mini-button{background:var(--coral);color:#fff;padding:8px 13px;border-radius:8px;font-weight:700}
        .art-bottom{position:relative;z-index:1;display:flex;gap:12px}
        .art-chip{border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:12px 15px;font-size:13px;color:#e9e5ef}
        .section{padding:88px 0}.section-tint{background:var(--lavender)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        h2{font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-1.2px;margin-top:10px}
        .section-intro{max-width:490px;color:var(--muted)}
        .entry-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--soft-shadow)}
        .entry-main{padding:8px 10px}.entry-main h3{font-size:26px;margin:11px 0}
        .entry-main p{color:var(--muted);max-width:600px}
        .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#edf6d2;color:#587213;font-size:12px;font-weight:800}
        .entry-side{background:#f8f4fb;border-radius:16px;padding:24px;display:flex;flex-direction:column;justify-content:space-between}
        .device-list{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.device-list span{font-size:13px;padding:7px 10px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--muted)}
        .info-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:50px;align-items:center}
        .info-board{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .info-tile{padding:24px;border-radius:16px;background:#fff;border:1px solid var(--line);min-height:145px}
        .info-tile:nth-child(2){background:var(--ink);color:#fff}.info-tile:nth-child(3){background:#eef7d5}
        .info-tile strong{font-size:30px;display:block;margin-bottom:8px}.info-tile span{font-size:13px;color:var(--muted)}.info-tile:nth-child(2) span{color:#d6ccdf}
        .news-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
        .featured,.news-item{background:#fff;border:1px solid var(--line);border-radius:17px;transition:.2s ease}
        .featured{padding:29px;min-height:270px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#fff 60%,#fff3ed)}
        .featured:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
        .featured h3{font-size:25px;line-height:1.35;margin:15px 0 8px}.featured p,.news-item p{font-size:14px;color:var(--muted)}
        .news-list{display:flex;flex-direction:column;gap:12px}.news-item{padding:18px 20px;display:grid;grid-template-columns:1fr auto;gap:10px}.news-item h3{font-size:16px}.news-meta{font-size:12px;color:var(--muted);margin-top:5px}.news-arrow{color:var(--coral);font-size:20px;align-self:center}
        .empty-state{grid-column:1/-1;text-align:center;padding:45px;border:1px dashed #cfc4d7;border-radius:18px;background:#fff;color:var(--muted)}
        .download{background:#fbf3ec;border-top:1px solid #f0ddd2;border-bottom:1px solid #f0ddd2}.download-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
        .device-preview{height:300px;border-radius:28px;background:var(--ink);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
        .device-preview:before{content:"";width:155px;height:255px;border:7px solid #fff;border-radius:25px;box-shadow:18px 15px 0 var(--coral);transform:rotate(-8deg)}
        .device-preview:after{content:"WELCOME";position:absolute;color:#fff;font-weight:900;font-size:24px;letter-spacing:2px;transform:rotate(-8deg)}
        .download h2{margin-bottom:15px}.download p{color:var(--muted);max-width:570px}
        .download-tools{display:flex;align-items:center;gap:18px;margin-top:25px}.qr{width:82px;height:82px;border:8px solid #fff;background:repeating-linear-gradient(45deg,var(--ink) 0 4px,#fff 4px 8px);border-radius:5px}
        .download-note{font-size:13px;color:var(--muted);margin-top:15px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{padding:24px 20px;border-top:3px solid var(--coral);background:#fff;border-radius:0 0 15px 15px;border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.step-num{color:var(--coral);font-weight:900;font-size:13px}.step h3{margin:11px 0 6px;font-size:18px}.step p{font-size:14px;color:var(--muted)}
        .faq-wrap{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;cursor:pointer;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}.faq-item[open] summary:after{content:"−"}.faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{max-width:680px}.cta p{color:#cfc4d8;margin-top:9px}.cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}.footer-brand{max-width:300px}.footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}.footer-brand p{font-size:13px;color:#a99db2}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}.footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}.footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}.footer-links a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:15px;padding-top:20px;color:#8d8099;font-size:12px}
        @media(max-width:1024px){.nav-wrap{gap:14px}.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:35px}.download-grid{gap:35px}}
        @media(max-width:768px){.topbar{height:68px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:68px;left:20px;right:20px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.nav-cta{display:none}.hero{padding:55px 0}.hero-grid,.entry-panel,.info-grid,.news-layout,.download-grid{grid-template-columns:1fr}.hero-copy{font-size:16px}.entry-art{min-height:330px}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:14px}.steps{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta .actions{margin-top:25px}.footer-top{display:block}.footer-links{margin-top:30px;gap:20px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}
        @media(max-width:520px){.container{width:min(100% - 32px,var(--container))}.logo-text{font-size:13px;max-width:180px;white-space:normal;line-height:1.25}.hero h1{font-size:38px;letter-spacing:-1.8px}.actions .btn{width:100%}.entry-art{padding:22px}.art-bottom{flex-direction:column}.info-board{grid-template-columns:1fr}.featured{min-height:240px}.news-item{grid-template-columns:1fr}.news-arrow{display:none}.download-tools{align-items:flex-start;flex-direction:column}.steps{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.footer-links h3{margin-top:10px}}

/* roulang page: article */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{height:76px;border-bottom:1px solid rgba(232,224,235,.8);background:rgba(255,253,251,.95);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime)}
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease}
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .nav-cta:focus-visible,.btn:focus-visible,.nav a:focus-visible,.menu-toggle:focus-visible,summary:focus-visible{outline:3px solid rgba(115,87,216,.35);outline-offset:3px}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .article-hero{padding:68px 0 58px;background:linear-gradient(120deg,#fffdfb 35%,#f4f0fa 100%);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:28px}
        .breadcrumb a{color:var(--coral-dark);font-weight:700}
        .breadcrumb .slash{color:#b8adbd}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:1.2px}
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        .article-heading{max-width:860px}
        .article-heading h1{font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-1.5px;margin:17px 0 20px;font-weight:900}
        .article-heading p{max-width:760px;color:var(--muted);font-size:18px;margin:0}
        .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:27px;color:var(--muted);font-size:13px}
        .tag{display:inline-flex;padding:5px 11px;border-radius:20px;background:#edf6d2;color:#587213;font-size:12px;font-weight:800}
        .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--coral)}
        .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:72px;align-items:start;padding:72px 0 90px}
        .article-content{min-width:0;background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,5vw,58px);box-shadow:var(--soft-shadow)}
        .article-content>*:first-child{margin-top:0}
        .article-content h2{font-size:30px;line-height:1.35;margin:40px 0 17px;padding-left:17px;border-left:4px solid var(--coral)}
        .article-content h3{font-size:22px;line-height:1.4;margin:31px 0 13px;color:var(--ink)}
        .article-content p{margin:0 0 19px;color:#51485d}
        .article-content ul,.article-content ol{padding-left:25px;margin:12px 0 24px;color:#51485d}
        .article-content li{padding:4px 0}
        .article-content blockquote{margin:28px 0;padding:20px 24px;background:#fff3ed;border-left:4px solid var(--coral);border-radius:0 12px 12px 0;color:#67483f}
        .article-content table{width:100%;border-collapse:collapse;margin:25px 0;display:block;overflow-x:auto}
        .article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
        .article-content th{background:var(--lavender);font-weight:800}
        .article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0}
        .article-content a{color:var(--coral-dark);text-decoration:underline;text-decoration-color:#f2b0a4;text-underline-offset:3px}
        .article-content a:hover{color:var(--purple)}
        .article-content figure{margin:28px 0}
        .article-content figure img{width:100%;border-radius:14px}
        .article-content figcaption{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
        .article-side{position:sticky;top:102px}
        .side-card{background:var(--lavender);border:1px solid var(--line);border-radius:17px;padding:23px;margin-bottom:17px}
        .side-card h2{font-size:17px;margin:0 0 15px}
        .side-card p{font-size:13px;color:var(--muted);margin:0 0 17px}
        .side-card ul{list-style:none;padding:0;margin:0}
        .side-card li{border-top:1px solid var(--line);padding:10px 0}
        .side-card li:first-child{border-top:0}
        .side-card li a{font-size:14px;color:#5e5568}
        .side-card li a:hover{color:var(--coral-dark)}
        .side-status{display:flex;align-items:center;gap:8px;color:#587213;font-size:13px;font-weight:800}
        .side-status i{width:8px;height:8px;background:var(--lime);border-radius:50%;display:inline-block}
        .article-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:35px;padding-top:28px;border-top:1px solid var(--line)}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .related-section{background:var(--lavender);padding:74px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head h2{font-size:32px;line-height:1.3;margin:13px 0 0}
        .section-intro{max-width:490px;color:var(--muted);margin:0}
        .related-empty{background:#fff;border:1px dashed #d7cbdc;border-radius:16px;padding:25px;color:var(--muted);max-width:760px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:680px;margin:0;font-size:clamp(25px,3vw,38px);line-height:1.3}
        .cta p{color:#cfc4d8;margin:9px 0 0}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2;margin:0}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin:0 0 12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:20px;color:#8e8299;font-size:12px}
        @media(max-width:1100px){
            .nav-wrap{gap:15px}.nav{gap:0}.nav a{padding:8px 8px;font-size:13px}
            .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:35px}
        }
        @media(max-width:820px){
            .topbar{height:68px}.container{width:min(var(--container),calc(100% - 32px))}
            .nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:12px 14px}.nav-cta{margin-left:auto;padding:10px 13px;font-size:13px}.menu-toggle{display:block}
            .article-hero{padding:50px 0 43px}.article-layout{display:block;padding:48px 0 62px}.article-side{position:static;margin-top:25px;display:grid;grid-template-columns:1fr 1fr;gap:15px}.side-card{margin:0}
            .cta-inner{align-items:flex-start;flex-direction:column}.footer-top{display:block}.footer-links{margin-top:34px;gap:25px}
        }
        @media(max-width:520px){
            .logo-text{font-size:13px;max-width:170px;white-space:normal;line-height:1.25}.logo-mark{width:34px;height:34px}
            .nav-cta{display:none}.article-heading h1{font-size:32px}.article-heading p{font-size:16px}
            .article-content{padding:23px 19px;border-radius:15px}.article-content h2{font-size:25px}
            .article-side{display:block}.side-card{margin-bottom:14px}.section-head{display:block}.section-head h2{font-size:27px}
            .footer-links{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}
        }

/* roulang page: category1 */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(242,99,79,.38);outline-offset:3px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{height:76px;border-bottom:1px solid rgba(232,224,235,.8);background:rgba(255,253,251,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime)}
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease}
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .hero{padding:76px 0 72px;background:linear-gradient(120deg,#fffdfb 35%,#f4f0fa 100%);overflow:hidden}
        .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
        .breadcrumb span{color:#b2a9b8}
        .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:72px;align-items:center}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:1.2px}
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.13;letter-spacing:-2px;margin:18px 0 22px;font-weight:900}
        h2{font-size:clamp(28px,3.5vw,42px);line-height:1.25;letter-spacing:-1px;margin-bottom:14px;font-weight:900}
        h3{font-size:20px;line-height:1.4;margin-bottom:10px}
        .hero-copy{max-width:620px;color:var(--muted);font-size:18px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .hero-note{display:flex;gap:20px;align-items:center;margin-top:25px;color:var(--muted);font-size:13px}
        .hero-visual{min-height:350px;background:var(--ink);border-radius:26px;padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
        .hero-visual:before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:var(--purple);right:-80px;top:-80px;opacity:.55}
        .hero-visual:after{content:"";position:absolute;width:130px;height:130px;border-radius:28px;background:var(--lime);left:-45px;bottom:-55px;transform:rotate(24deg)}
        .visual-label{position:relative;z-index:1;color:#d8cfdf;font-size:13px;letter-spacing:1px}
        .visual-title{position:relative;z-index:1;color:#fff;font-size:29px;font-weight:900;max-width:340px;margin:48px 0 28px}
        .visual-strip{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
        .visual-strip div{padding:17px 12px;border:1px solid rgba(255,255,255,.14);border-radius:13px;color:#eee8f2;font-size:13px;background:rgba(255,255,255,.06)}
        .visual-strip b{display:block;color:#fff;font-size:17px;margin-bottom:4px}
        .section{padding:88px 0}
        .section-tint{background:var(--lavender)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{max-width:500px;color:var(--muted)}
        .identity-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:stretch}
        .identity-card{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;min-height:310px;position:relative;overflow:hidden}
        .identity-card:after{content:"WELCOME";position:absolute;right:-20px;bottom:8px;color:rgba(255,255,255,.06);font-size:66px;font-weight:900;letter-spacing:-4px}
        .identity-card .mark-large{font-size:54px;font-weight:900;color:var(--coral);line-height:1;margin:42px 0 16px}
        .identity-card p{color:#cfc4d8;max-width:280px;font-size:14px}
        .identity-details{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
        .detail-box{background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px}
        .detail-box strong{display:block;font-size:17px;margin-bottom:8px}
        .detail-box p{font-size:14px;color:var(--muted);margin-bottom:0}
        .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#edf6d2;color:#587213;font-size:12px;font-weight:800}
        .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:42px}
        .timeline:before{content:"";position:absolute;left:7%;right:7%;top:17px;height:2px;background:#ddd4e5}
        .timeline-item{position:relative;padding:48px 24px 0 0}
        .timeline-dot{position:absolute;top:8px;left:0;width:19px;height:19px;border-radius:50%;background:var(--coral);border:5px solid #fff}
        .timeline-item h3{font-size:18px}
        .timeline-item p{color:var(--muted);font-size:14px;margin-bottom:0;padding-right:14px}
        .channel-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .channel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px;display:flex;gap:18px;align-items:flex-start;transition:.2s ease}
        .channel:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
        .channel-icon{width:44px;height:44px;border-radius:12px;background:#f8e9e5;color:var(--coral-dark);display:grid;place-items:center;font-weight:900;flex:none}
        .channel p{font-size:14px;color:var(--muted);margin:0}
        .download-banner{background:#fff3ed;border:1px solid #f5d8d0;border-radius:22px;padding:34px 38px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
        .download-banner p{color:var(--muted);max-width:650px;margin-bottom:0}
        .device-list{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
        .device-list span{font-size:13px;padding:7px 10px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--muted)}
        .faq-wrap{max-width:850px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;cursor:pointer;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:680px;margin-bottom:0}
        .cta p{color:#cfc4d8;margin-top:9px}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#8f8299}
        @media(max-width:1024px){
            .nav-wrap{gap:15px}.nav a{padding:8px 8px;font-size:13px}.nav-cta{padding:10px 13px;font-size:13px}
            .hero-grid{gap:40px}.identity-layout{grid-template-columns:1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .topbar{height:68px}.nav-wrap{justify-content:space-between}.logo-text{font-size:13px}.menu-toggle{display:block}
            .nav{display:none;position:absolute;left:16px;right:16px;top:75px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{text-align:center;padding:11px}.nav-cta{display:none}
            .hero{padding:52px 0}.hero-grid,.identity-layout,.download-banner{grid-template-columns:1fr;gap:28px}
            h1{font-size:42px}.hero-copy{font-size:16px}.hero-visual{min-height:290px}
            .section{padding:58px 0}.section-head{display:block}.section-head .section-intro{margin-top:12px}
            .timeline{grid-template-columns:1fr 1fr;gap:24px}.timeline:before{display:none}.timeline-item{padding-top:38px}
            .channel-grid{grid-template-columns:1fr}.download-banner{padding:28px}
            .cta-inner{display:block}.cta .btn{margin-top:20px}.footer-top{display:block}.footer-links{margin-top:30px;gap:22px}
            .copyright{display:block}.copyright span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            h1{font-size:35px;letter-spacing:-1px}.hero-actions .btn{width:100%}.visual-strip{grid-template-columns:1fr}
            .visual-title{margin:30px 0 22px;font-size:24px}.identity-details{grid-template-columns:1fr}
            .timeline{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.footer-links>div:last-child{grid-column:1/-1}
        }

/* roulang page: category2 */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --soft-purple:#ebe5fb;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(242,99,79,.4);outline-offset:3px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{letter-spacing:-.04em}
        h1{font-size:clamp(38px,5vw,68px);line-height:1.12;margin:16px 0 22px;font-weight:900}
        h2{font-size:clamp(28px,3.4vw,44px);line-height:1.2;margin-bottom:15px;font-weight:900}
        h3{font-size:21px;line-height:1.35;margin-bottom:9px}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{height:76px;border-bottom:1px solid rgba(232,224,235,.8);background:rgba(255,253,251,.95);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime)}
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease}
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:1.2px}
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        .hero{padding:78px 0 70px;overflow:hidden;background:linear-gradient(120deg,#fffdfb 36%,#f3eff8 100%)}
        .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:38px}
        .breadcrumb a:hover{color:var(--coral-dark)}
        .breadcrumb span{margin:0 9px;color:#b7adbd}
        .hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:72px;align-items:center}
        .hero-copy{max-width:620px;color:var(--muted);font-size:18px}
        .hero-copy strong{color:var(--ink)}
        .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .hero-note{display:flex;gap:12px;align-items:center;margin-top:25px;color:var(--muted);font-size:13px}
        .status-dot{width:9px;height:9px;background:var(--lime);border-radius:50%;display:inline-block;box-shadow:0 0 0 5px rgba(184,220,84,.18)}
        .entry-visual{min-height:395px;background:var(--ink);border-radius:28px;padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
        .entry-visual:before{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(184,220,84,.3);border-radius:50%;right:-65px;top:-75px}
        .entry-visual:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(242,99,79,.35);border-radius:50%;left:-70px;bottom:-70px}
        .visual-label{position:relative;z-index:1;color:#cfc4d8;font-size:13px;letter-spacing:1px}
        .route-panel{position:relative;z-index:1;background:#fff;border-radius:18px;padding:24px;margin-top:42px;color:var(--ink)}
        .route-panel small{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}
        .route-title{font-size:25px;font-weight:900;margin-bottom:20px}
        .route-line{height:1px;background:var(--line);margin:18px 0}
        .route-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:13px}
        .mini-button{background:var(--coral);color:#fff;padding:8px 13px;border-radius:8px;font-weight:800}
        .visual-tags{position:relative;z-index:1;display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
        .visual-tags span{border:1px solid rgba(255,255,255,.2);color:#e9e5ef;border-radius:20px;padding:5px 10px;font-size:12px}
        .section{padding:88px 0}
        .section-tint{background:var(--lavender)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{max-width:510px;color:var(--muted)}
        .entry-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:28px;align-items:stretch}
        .entry-box,.side-box,.step,.notice-box,.device-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--soft-shadow)}
        .entry-box{padding:34px}
        .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#edf6d2;color:#587213;font-size:12px;font-weight:800}
        .entry-box h3{font-size:30px;margin:15px 0 10px}
        .entry-box p,.side-box p,.notice-box p{color:var(--muted)}
        .device-list{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}
        .device-list span{font-size:13px;padding:7px 10px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--muted)}
        .entry-actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:27px}
        .side-box{padding:28px;background:#2d2340;color:#fff}
        .side-box h3{font-size:24px}
        .side-box p{color:#cfc4d8;font-size:14px}
        .path-list{list-style:none;padding:0;margin:22px 0 0}
        .path-list li{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.13);font-size:14px}
        .path-list li:last-child{border-bottom:0}
        .path-number{width:28px;height:28px;flex:none;border-radius:9px;background:var(--coral);display:grid;place-items:center;font-weight:900}
        .split-content{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}
        .signal-board{background:var(--ink);border-radius:24px;padding:28px;color:#fff;position:relative;overflow:hidden}
        .signal-board:after{content:"WELCOME";position:absolute;right:-18px;bottom:10px;color:rgba(255,255,255,.06);font-size:64px;font-weight:900}
        .signal-board h3{font-size:27px;position:relative;z-index:1}
        .signal-row{position:relative;z-index:1;display:flex;justify-content:space-between;gap:14px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:14px}
        .signal-row:last-child{border-bottom:0}
        .signal-row span{color:#cfc4d8}
        .info-points{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
        .info-point{padding:22px 0;border-top:3px solid var(--lime)}
        .info-point:nth-child(2n){border-color:var(--purple)}
        .info-point p{color:var(--muted);font-size:14px;margin-bottom:0}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
        .step{padding:24px;min-height:190px}
        .step-number{color:var(--coral);font-size:14px;font-weight:900;letter-spacing:1px}
        .step h3{margin-top:27px}
        .step p{font-size:14px;color:var(--muted);margin-bottom:0}
        .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
        .notice-box{padding:28px}
        .notice-box.safe{background:#f1f7dc;border-color:#dce9b5}
        .notice-box.safe h3{color:#587213}
        .notice-box h3{font-size:22px}
        .notice-box ul{padding-left:20px;margin:0;color:var(--muted);font-size:14px}
        .faq-wrap{max-width:850px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;cursor:pointer;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:670px;margin-bottom:0}
        .cta p{color:#cfc4d8;margin:9px 0 0}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#8e8299;font-size:12px}
        @media(max-width:1024px){
            .nav-wrap{gap:15px}.nav{gap:0}.nav a{padding:8px 8px;font-size:13px}.nav-cta{padding:10px 13px;font-size:13px}
            .hero-grid{gap:40px}.split-content{gap:40px}.steps{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .topbar{height:68px}.logo-text{font-size:13px}.logo-mark{width:34px;height:34px}
            .menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:12px 14px}.nav-cta{display:none}
            .hero{padding:48px 0 54px}.hero-grid,.entry-layout,.split-content,.notice-grid{grid-template-columns:1fr;gap:28px}
            h1{font-size:42px}.hero-copy{font-size:16px}.entry-visual{min-height:340px}
            .section{padding:58px 0}.section-head{display:block;margin-bottom:26px}.section-intro{margin-top:12px}
            .info-points{gap:16px}.steps{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta .actions{margin-top:24px}
            .footer-top{display:block}.footer-links{margin-top:30px;gap:22px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .logo-text{max-width:190px;white-space:normal;line-height:1.2}
            h1{font-size:35px}.entry-box{padding:24px}.route-panel{margin-top:32px;padding:20px}.entry-box h3{font-size:26px}
            .info-points,.steps{grid-template-columns:1fr}.hero-note{align-items:flex-start}.actions .btn{width:100%}
            .footer-links{grid-template-columns:1fr 1fr}.footer-links>div:last-child{grid-column:1/-1}
        }

/* roulang page: category3 */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
            background:var(--paper);
            color:var(--ink);
            line-height:1.7;
            font-size:16px;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{letter-spacing:-.035em}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.12;margin-bottom:22px;font-weight:900}
        h2{font-size:clamp(28px,3.6vw,44px);line-height:1.2;margin-bottom:14px;font-weight:900}
        h3{font-size:20px;line-height:1.35;margin-bottom:8px}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{
            height:76px;
            border-bottom:1px solid rgba(232,224,235,.8);
            background:rgba(255,253,251,.94);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(14px);
        }
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{
            width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;
            display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime);
        }
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{
            padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease
        }
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease
        }
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .hero{
            padding:78px 0 70px;
            background:linear-gradient(120deg,#fffdfb 35%,#f4f0fa 100%);
            border-bottom:1px solid var(--line);
        }
        .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:32px}
        .breadcrumb a:hover{color:var(--coral-dark)}
        .breadcrumb span{color:#b9adbf}
        .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);
            font-size:13px;font-weight:900;letter-spacing:1.2px;margin-bottom:18px
        }
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        .hero-copy{max-width:680px;color:var(--muted);font-size:18px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
        .hero-note{display:flex;gap:20px;align-items:center;margin-top:27px;color:var(--muted);font-size:13px}
        .status-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);display:inline-block;box-shadow:0 0 0 5px rgba(184,220,84,.18)}
        .news-board{
            background:var(--ink);color:#fff;border-radius:24px;padding:28px;
            min-height:300px;position:relative;overflow:hidden;box-shadow:var(--shadow)
        }
        .news-board:after{
            content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(184,220,84,.5);
            border-radius:50%;right:-55px;bottom:-60px
        }
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #493b59;padding-bottom:19px}
        .board-label{font-weight:900;letter-spacing:.05em}
        .board-date{font-size:12px;color:#b9aec4}
        .board-body{padding-top:30px;position:relative;z-index:1}
        .board-body strong{font-size:28px;line-height:1.3;display:block;max-width:330px}
        .board-body p{color:#cfc5d6;font-size:14px;margin:15px 0 22px;max-width:330px}
        .board-line{height:5px;width:76px;background:var(--coral);border-radius:5px}
        .section{padding:82px 0}
        .section-tint{background:var(--lavender)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-intro{max-width:520px;color:var(--muted)}
        .filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
        .filter{
            border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:30px;
            padding:9px 16px;font-size:13px;transition:.2s
        }
        .filter:hover,.filter.active{background:var(--coral);border-color:var(--coral);color:#fff}
        .feature-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}
        .featured,.news-item{
            background:#fff;border:1px solid var(--line);border-radius:17px;transition:.2s ease
        }
        .featured{padding:31px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#fff 60%,#fff3ed)}
        .featured:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
        .featured h3{font-size:27px;margin:16px 0 10px}
        .featured p,.news-item p{font-size:14px;color:var(--muted)}
        .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:#edf6d2;color:#587213;font-size:12px;font-weight:800}
        .news-list{display:flex;flex-direction:column;gap:12px}
        .news-item{padding:19px 21px;display:grid;grid-template-columns:1fr auto;gap:12px}
        .news-item h3{font-size:17px}
        .news-meta{font-size:12px;color:var(--muted);margin-top:6px}
        .news-arrow{color:var(--coral);font-size:21px;align-self:center}
        .empty-state{
            text-align:center;background:#fff;border:1px dashed #cfc3d6;border-radius:20px;
            padding:55px 25px;margin-top:24px
        }
        .empty-icon{
            width:56px;height:56px;border-radius:16px;background:#fff0eb;color:var(--coral);
            display:grid;place-items:center;margin:0 auto 17px;font-size:25px;font-weight:900
        }
        .empty-state h3{margin-bottom:8px}
        .empty-state p{color:var(--muted);max-width:530px;margin:0 auto 22px;font-size:14px}
        .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
        .info-cell{background:#fff;padding:24px 25px}
        .info-cell b{display:block;font-size:22px;margin-bottom:4px}
        .info-cell span{color:var(--muted);font-size:13px}
        .timeline{position:relative;max-width:850px;margin:10px auto 0}
        .timeline:before{content:"";position:absolute;left:18px;top:5px;bottom:6px;width:2px;background:#dfd5e5}
        .timeline-item{display:grid;grid-template-columns:38px 1fr;gap:22px;position:relative;padding-bottom:27px}
        .timeline-mark{width:38px;height:38px;border-radius:12px;background:var(--lime);color:#4c6014;display:grid;place-items:center;font-weight:900;z-index:1}
        .timeline-content{padding:5px 0 0}
        .timeline-content h3{font-size:18px;margin-bottom:5px}
        .timeline-content p{color:var(--muted);font-size:14px;margin:0}
        .download-panel{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px;align-items:center}
        .device-preview{min-height:270px;border-radius:22px;background:#2d2141;padding:24px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
        .device-preview:before{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(184,220,84,.45);border-radius:50%}
        .screen{width:190px;height:220px;border:7px solid #11101a;border-radius:25px;background:#fff;position:relative;z-index:1;padding:17px 13px;box-shadow:0 15px 25px rgba(0,0,0,.25)}
        .screen-top{height:9px;width:55px;border-radius:8px;background:#e8e0eb;margin:0 auto 24px}
        .screen-logo{height:42px;border-radius:12px;background:#fff0eb;color:var(--coral);display:grid;place-items:center;font-weight:900;margin-bottom:13px}
        .screen-bar{height:10px;background:#f0edf3;border-radius:8px;margin:9px 0}
        .screen-button{height:30px;background:var(--coral);border-radius:8px;margin-top:19px}
        .download-copy p{color:var(--muted);max-width:560px}
        .device-list{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
        .device-list span{font-size:13px;padding:7px 10px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--muted)}
        .download-options{display:flex;gap:15px;align-items:center;flex-wrap:wrap;margin-top:24px}
        .qr{width:88px;height:88px;border:7px solid #fff;background:repeating-linear-gradient(45deg,#241b36 0 4px,#fff 4px 8px);outline:1px solid var(--line);border-radius:8px}
        .download-tip{font-size:12px;color:var(--muted);max-width:250px}
        .faq-wrap{max-width:850px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;cursor:pointer;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:680px;margin-bottom:0}
        .cta p{color:#cfc4d8;margin-top:9px;margin-bottom:0}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#8f829a;font-size:12px}
        :focus-visible{outline:3px solid rgba(242,99,79,.45);outline-offset:3px}
        @media(max-width:1100px){
            .nav-wrap{gap:15px}.nav{gap:0}.nav a{padding:8px 8px;font-size:13px}
            .nav-cta{padding:10px 13px;font-size:13px}
            .hero-grid{gap:40px}.download-panel{gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .topbar{height:68px}.nav-wrap{justify-content:space-between}
            .logo-text{font-size:13px}.menu-toggle{display:block}
            .nav{
                display:none;position:absolute;top:68px;left:0;right:0;padding:12px 17px 18px;
                background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--soft-shadow);
                flex-direction:column;align-items:stretch;margin:0
            }
            .nav.open{display:flex}.nav a{padding:12px 13px}.nav-cta{display:none}
            .hero{padding:50px 0 52px}.hero-grid,.feature-layout,.download-panel{grid-template-columns:1fr;gap:30px}
            .hero-copy{font-size:16px}.news-board{min-height:255px}
            .section{padding:58px 0}.section-head{display:block;margin-bottom:25px}
            .section-intro{margin-top:10px}.info-strip{grid-template-columns:1fr}
            .info-cell{padding:19px 21px}.device-preview{min-height:235px}
            .cta-inner{display:block}.cta .btn{margin-top:22px}
            .footer-top{display:block}.footer-links{margin-top:30px;gap:20px}
            .copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            h1{font-size:37px}.hero-actions{display:grid;grid-template-columns:1fr}
            .hero-actions .btn{width:100%}.hero-note{display:block}.hero-note span{display:inline-block;margin:6px 15px 0 0}
            .news-board{padding:23px}.board-body strong{font-size:24px}
            .featured{min-height:260px;padding:24px}.news-item{grid-template-columns:1fr;padding:17px}
            .news-arrow{display:none}.download-options{align-items:flex-start}.footer-links{grid-template-columns:1fr 1fr}
            .footer-links>div:last-child{grid-column:1/-1}.breadcrumb{margin-bottom:22px}
        }

/* roulang page: category5 */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{letter-spacing:-.035em}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .topbar{height:76px;border-bottom:1px solid rgba(232,224,235,.8);background:rgba(255,253,251,.94);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.5px;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:19px;box-shadow:5px 5px 0 var(--lime)}
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{padding:9px 12px;border-radius:10px;font-size:14px;color:#625a6c;transition:.2s ease}
        .nav a:hover,.nav a.active{background:#f8e9e5;color:var(--coral-dark);font-weight:700}
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;padding:12px 19px;font-weight:800;transition:.2s ease}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,99,79,.2)}
        .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(217,77,61,.24)}
        .btn-secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--coral);color:var(--coral-dark);transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .menu-toggle{display:none;background:var(--lavender);width:42px;height:42px;border-radius:10px;color:var(--ink);font-size:20px}
        .hero{padding:74px 0 76px;background:linear-gradient(120deg,#fffdfb 28%,#f4f0fa 100%);overflow:hidden}
        .crumbs{font-size:13px;color:var(--muted);margin-bottom:34px}
        .crumbs a{color:var(--coral-dark);font-weight:700}
        .guide-hero{display:grid;grid-template-columns:1fr .8fr;gap:80px;align-items:center}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:1.2px}
        .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--lime);border-radius:5px}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.12;margin:18px 0 22px;max-width:700px}
        .hero-copy{max-width:650px;color:var(--muted);font-size:18px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
        .hero-note{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-top:22px}
        .status-board{background:var(--ink);color:#fff;border-radius:24px;padding:28px;box-shadow:var(--shadow);position:relative}
        .status-board:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;background:var(--purple);opacity:.3;right:-30px;bottom:-40px}
        .board-label{color:#cfc4d8;font-size:13px}
        .board-title{font-size:25px;font-weight:900;margin:9px 0 25px}
        .board-row{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-top:1px solid #4a3d56;color:#e8dfed}
        .signal{display:inline-flex;align-items:center;gap:7px;color:#d8ef8b;font-size:13px;font-weight:700}
        .signal:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
        .section{padding:82px 0}
        .section-tint{background:var(--lavender)}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
        .section-head h2{font-size:clamp(28px,3.5vw,42px);margin:10px 0 0}
        .section-intro{max-width:520px;color:var(--muted)}
        .progress-line{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:28px 0 48px;position:relative}
        .progress-line:before{content:"";position:absolute;top:18px;left:5%;right:5%;height:2px;background:#dfd6e6}
        .progress-point{position:relative;text-align:center;color:var(--muted);font-size:13px}
        .point-number{width:36px;height:36px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid var(--line);color:var(--purple);font-weight:900;position:relative;z-index:1}
        .progress-point:first-child .point-number{background:var(--coral);border-color:var(--coral);color:#fff}
        .steps-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
        .step-list{display:flex;flex-direction:column;gap:12px}
        .step-card{display:grid;grid-template-columns:55px 1fr auto;gap:18px;align-items:center;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.2s ease}
        .step-card:hover{transform:translateX(4px);box-shadow:var(--soft-shadow);border-color:#d7c8e3}
        .step-num{width:42px;height:42px;border-radius:12px;background:#edf6d2;color:#587213;display:grid;place-items:center;font-weight:900}
        .step-card h3{font-size:18px;margin:0 0 3px}
        .step-card p{margin:0;color:var(--muted);font-size:14px}
        .step-arrow{color:var(--coral);font-size:21px}
        .guide-panel{padding:30px;border-radius:20px;background:#fff3ed;border:1px solid #f5d7ce;min-height:100%}
        .guide-panel h3{font-size:24px;margin:13px 0}
        .guide-panel p{color:var(--muted)}
        .check-list{padding:0;margin:24px 0 0;list-style:none}
        .check-list li{padding:12px 0 12px 28px;border-top:1px solid #f0d6cf;position:relative;color:#51485d}
        .check-list li:before{content:"✓";position:absolute;left:0;color:var(--coral-dark);font-weight:900}
        .info-band{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
        .info-cell{background:#fff;padding:27px}
        .info-cell strong{display:block;font-size:18px;margin-bottom:7px}
        .info-cell span{font-size:14px;color:var(--muted)}
        .issue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .issue-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:17px;transition:.2s}
        .issue-card:hover{transform:translateY(-3px);box-shadow:var(--soft-shadow)}
        .issue-icon{width:38px;height:38px;border-radius:11px;background:#eee8ff;color:var(--purple);display:grid;place-items:center;font-weight:900;margin-bottom:17px}
        .issue-card h3{font-size:18px;margin-bottom:8px}
        .issue-card p{font-size:14px;color:var(--muted);margin:0}
        .faq-wrap{max-width:850px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{list-style:none;cursor:pointer;padding:21px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:680px;font-size:clamp(27px,3vw,40px);margin-bottom:0}
        .cta p{color:#cfc4d8;margin:9px 0 0}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:35px;border-bottom:1px solid #3b3049}
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#887b94}
        :focus-visible{outline:3px solid rgba(242,99,79,.45);outline-offset:3px}
        @media(max-width:1024px){
            .nav-wrap{gap:15px}.nav a{padding:8px 7px;font-size:13px}.nav-cta{padding:10px 13px}
            .guide-hero{gap:40px}.steps-grid{grid-template-columns:1fr}.issue-grid{grid-template-columns:repeat(3,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .topbar{height:68px}.nav-wrap{justify-content:space-between}.menu-toggle{display:block}
            .nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--soft-shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:12px 14px}.nav-cta{display:none}
            .logo-text{font-size:13px}.hero{padding:46px 0 55px}.crumbs{margin-bottom:25px}
            .guide-hero{grid-template-columns:1fr;gap:35px}h1{font-size:42px}.hero-copy{font-size:16px}
            .section{padding:57px 0}.section-head{display:block}.section-intro{margin-top:15px}
            .progress-line{grid-template-columns:1fr;gap:18px;margin:25px 0 30px}.progress-line:before{left:17px;top:18px;bottom:18px;width:2px;height:auto;right:auto}
            .progress-point{text-align:left;display:flex;align-items:center;gap:14px}.point-number{margin:0}
            .info-band,.issue-grid{grid-template-columns:1fr}.step-card{grid-template-columns:45px 1fr auto;padding:18px}.cta-inner{display:block}.cta .btn{margin-top:24px}
            .footer-top{display:block}.footer-links{margin-top:30px;gap:20px}.copyright{display:block}.copyright span{display:block;margin-top:8px}
        }
        @media(max-width:480px){
            h1{font-size:36px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.status-board{padding:23px}
            .footer-links{grid-template-columns:1fr 1fr}.footer-links>div:last-child{grid-column:1/-1}
        }

/* roulang page: category4 */
:root{
            --ink:#241b36;
            --muted:#746c80;
            --paper:#fffdfb;
            --lavender:#f3eff8;
            --line:#e8e0eb;
            --coral:#f2634f;
            --coral-dark:#d94d3d;
            --lime:#b8dc54;
            --purple:#7357d8;
            --shadow:0 18px 45px rgba(43,29,65,.09);
            --soft-shadow:0 8px 24px rgba(43,29,65,.07);
            --radius:18px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
            background:var(--paper);
            color:var(--ink);
            line-height:1.7;
            font-size:16px;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{letter-spacing:-.04em}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .topbar{
            height:76px;
            border-bottom:1px solid rgba(232,224,235,.8);
            background:rgba(255,253,251,.94);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(14px);
        }
        .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
        .logo{
            display:flex;
            align-items:center;
            gap:11px;
            font-weight:900;
            letter-spacing:-.5px;
            white-space:nowrap;
        }
        .logo-mark{
            width:38px;
            height:38px;
            border-radius:12px;
            background:var(--coral);
            color:#fff;
            display:grid;
            place-items:center;
            font-size:19px;
            box-shadow:5px 5px 0 var(--lime);
        }
        .logo-text{font-size:15px}
        .nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav a{
            padding:9px 12px;
            border-radius:10px;
            font-size:14px;
            color:#625a6c;
            transition:.2s ease;
        }
        .nav a:hover,.nav a.active{
            background:#f8e9e5;
            color:var(--coral-dark);
            font-weight:700;
        }
        .nav a.active{box-shadow:inset 0 -2px var(--coral)}
        .nav-cta,.btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            border-radius:11px;
            padding:12px 19px;
            font-weight:800;
            transition:.2s ease;
        }
        .nav-cta,.btn-primary{
            background:var(--coral);
            color:#fff;
            box-shadow:0 8px 18px rgba(242,99,79,.2);
        }
        .nav-cta:hover,.btn-primary:hover{
            background:var(--coral-dark);
            color:#fff;
            transform:translateY(-2px);
            box-shadow:0 12px 22px rgba(217,77,61,.24);
        }
        .btn-secondary{
            border:1px solid var(--line);
            background:#fff;
            color:var(--ink);
        }
        .btn-secondary:hover{
            border-color:var(--coral);
            color:var(--coral-dark);
            transform:translateY(-2px);
            box-shadow:var(--soft-shadow);
        }
        .menu-toggle{
            display:none;
            background:var(--lavender);
            width:42px;
            height:42px;
            border-radius:10px;
            color:var(--ink);
            font-size:20px;
        }
        a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
            outline:3px solid rgba(242,99,79,.35);
            outline-offset:3px;
        }
        .hero{
            padding:72px 0 58px;
            background:
                radial-gradient(circle at 12% 10%,rgba(184,220,84,.23),transparent 22%),
                linear-gradient(120deg,#fffdfb 32%,#f4f0fa 100%);
            overflow:hidden;
        }
        .breadcrumb{
            display:flex;
            align-items:center;
            gap:10px;
            color:var(--muted);
            font-size:13px;
            margin-bottom:32px;
        }
        .breadcrumb span{color:#b4aabe}
        .hero-layout{
            display:grid;
            grid-template-columns:1.1fr .9fr;
            gap:72px;
            align-items:center;
        }
        .eyebrow,.section-kicker{
            display:inline-flex;
            align-items:center;
            gap:8px;
            color:var(--coral-dark);
            font-size:13px;
            font-weight:900;
            letter-spacing:1.2px;
        }
        .eyebrow:before,.section-kicker:before{
            content:"";
            width:24px;
            height:3px;
            background:var(--lime);
            border-radius:5px;
        }
        h1{
            font-size:clamp(38px,5vw,66px);
            line-height:1.1;
            margin:18px 0 20px;
            max-width:720px;
        }
        .hero-copy{
            max-width:630px;
            color:var(--muted);
            font-size:18px;
        }
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
        .hero-note{
            display:flex;
            gap:18px;
            align-items:center;
            margin-top:25px;
            color:var(--muted);
            font-size:13px;
        }
        .status-dot{
            width:9px;
            height:9px;
            display:inline-block;
            border-radius:50%;
            background:var(--lime);
            box-shadow:0 0 0 5px rgba(184,220,84,.18);
            margin-right:7px;
        }
        .device-stage{
            min-height:410px;
            border-radius:28px;
            background:var(--ink);
            padding:25px;
            position:relative;
            overflow:hidden;
            box-shadow:var(--shadow);
        }
        .device-stage:before{
            content:"";
            width:260px;
            height:260px;
            border-radius:50%;
            background:var(--purple);
            opacity:.35;
            position:absolute;
            right:-85px;
            top:-70px;
        }
        .device-stage:after{
            content:"";
            width:160px;
            height:160px;
            border-radius:50%;
            background:var(--coral);
            opacity:.25;
            position:absolute;
            left:-60px;
            bottom:-70px;
        }
        .phone{
            width:205px;
            height:350px;
            margin:18px auto 0;
            border:7px solid #493b59;
            border-radius:30px;
            background:#fffdfb;
            position:relative;
            z-index:1;
            padding:14px;
            box-shadow:18px 20px 0 rgba(0,0,0,.13);
        }
        .phone-notch{
            width:70px;
            height:13px;
            border-radius:0 0 12px 12px;
            background:#493b59;
            position:absolute;
            top:-7px;
            left:60px;
        }
        .phone-topline{height:9px;width:75px;background:var(--coral);border-radius:8px;margin:18px 0 20px}
        .phone-title{font-size:18px;font-weight:900;margin-bottom:5px}
        .phone-subtitle{font-size:10px;color:var(--muted);margin-bottom:20px}
        .phone-panel{border-radius:13px;background:#f4f0fa;padding:14px;margin-bottom:12px}
        .phone-panel strong{font-size:13px;display:block}
        .phone-panel small{font-size:10px;color:var(--muted)}
        .phone-button{height:31px;background:var(--coral);border-radius:8px;margin-top:12px}
        .stage-label{
            position:absolute;
            z-index:2;
            background:#fff;
            border-radius:13px;
            padding:13px 15px;
            box-shadow:var(--soft-shadow);
            font-size:13px;
        }
        .stage-label strong{display:block;font-size:14px}
        .stage-label small{color:var(--muted)}
        .stage-label.one{left:22px;top:74px}
        .stage-label.two{right:18px;bottom:55px}
        .section{padding:88px 0}
        .section-tint{background:var(--lavender)}
        .section-head{
            display:flex;
            justify-content:space-between;
            align-items:end;
            gap:25px;
            margin-bottom:38px;
        }
        .section-head h2{font-size:clamp(28px,3.5vw,42px);margin:12px 0 0}
        .section-intro{max-width:500px;color:var(--muted);margin-bottom:0}
        .download-panel{
            display:grid;
            grid-template-columns:.8fr 1.2fr;
            gap:58px;
            align-items:center;
            background:#fff;
            border:1px solid var(--line);
            border-radius:24px;
            padding:34px;
            box-shadow:var(--soft-shadow);
        }
        .download-visual{
            min-height:310px;
            border-radius:18px;
            background:#f7f2ee;
            display:flex;
            align-items:center;
            justify-content:center;
            position:relative;
            overflow:hidden;
        }
        .tablet{
            width:280px;
            height:190px;
            background:#2d2340;
            border:8px solid #504461;
            border-radius:18px;
            transform:rotate(-5deg);
            padding:17px;
            box-shadow:15px 18px 0 rgba(36,27,54,.12);
        }
        .tablet-bar{height:10px;width:90px;background:var(--lime);border-radius:8px;margin-bottom:18px}
        .tablet-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:10px}
        .tablet-box{height:52px;border-radius:9px;background:#f2634f}
        .tablet-box:nth-child(2){background:#7357d8}
        .tablet-box:nth-child(3){height:42px;background:#fff}
        .tablet-box:nth-child(4){height:42px;background:#b8dc54}
        .download-info h2{font-size:32px;margin:12px 0 12px}
        .download-info p{color:var(--muted)}
        .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}
        .meta-line{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .meta-line span{padding:8px 11px;background:#faf7f4;border:1px solid var(--line);border-radius:9px}
        .access-row{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:18px;
            margin-top:18px;
        }
        .access-box{
            border:1px solid var(--line);
            border-radius:16px;
            padding:20px;
            background:var(--paper);
        }
        .access-box h3{font-size:18px;margin-bottom:8px}
        .access-box p{font-size:14px;color:var(--muted);margin-bottom:0}
        .qr-box{
            width:108px;
            height:108px;
            padding:9px;
            background:#fff;
            border:1px solid var(--line);
            border-radius:12px;
            margin-top:15px;
            display:grid;
            grid-template-columns:repeat(7,1fr);
            gap:3px;
        }
        .qr-box i{background:var(--ink);display:block}
        .qr-box i:nth-child(3n),.qr-box i:nth-child(5n){background:var(--coral)}
        .qr-caption{font-size:12px;color:var(--muted);margin-top:8px}
        .steps{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:0;
            position:relative;
        }
        .steps:before{
            content:"";
            position:absolute;
            left:11%;
            right:11%;
            top:27px;
            height:1px;
            background:var(--line);
        }
        .step{position:relative;padding:0 28px 0 0}
        .step:last-child{padding-right:0}
        .step-number{
            width:55px;
            height:55px;
            border-radius:16px;
            background:var(--coral);
            color:#fff;
            display:grid;
            place-items:center;
            font-size:20px;
            font-weight:900;
            position:relative;
            z-index:1;
            margin-bottom:22px;
            box-shadow:6px 6px 0 var(--lime);
        }
        .step:nth-child(2) .step-number{background:var(--purple)}
        .step:nth-child(3) .step-number{background:var(--ink)}
        .step h3{font-size:21px;margin-bottom:8px}
        .step p{color:var(--muted);font-size:14px;max-width:280px}
        .compatibility{
            display:grid;
            grid-template-columns:.75fr 1.25fr;
            gap:50px;
            align-items:start;
        }
        .compatibility h2{font-size:36px;margin:12px 0}
        .compatibility-intro{color:var(--muted)}
        .device-table{
            background:#fff;
            border:1px solid var(--line);
            border-radius:18px;
            overflow:hidden;
        }
        .device-table-row{
            display:grid;
            grid-template-columns:1fr 1.1fr .9fr;
            gap:16px;
            padding:17px 20px;
            border-bottom:1px solid var(--line);
            font-size:14px;
        }
        .device-table-row:last-child{border-bottom:0}
        .device-table-row.head{background:#faf7f4;color:var(--muted);font-size:12px;font-weight:800}
        .device-table-row strong{font-size:15px}
        .state{color:#587213;font-weight:800}
        .faq-wrap{max-width:850px;margin:auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-item summary{
            list-style:none;
            cursor:pointer;
            padding:21px 4px;
            font-weight:800;
            display:flex;
            justify-content:space-between;
            gap:20px;
        }
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";color:var(--coral);font-size:23px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{color:var(--muted);padding:0 42px 22px 4px;font-size:15px}
        .cta{padding:58px 0;background:var(--ink);color:#fff}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{max-width:700px;font-size:34px;margin-bottom:0}
        .cta p{color:#cfc4d8;margin-top:9px;margin-bottom:0}
        .cta .btn-secondary{background:transparent;border-color:#625472;color:#fff}
        footer{background:#1d162b;color:#d9d0e0;padding:44px 0 25px}
        .footer-top{
            display:flex;
            justify-content:space-between;
            gap:40px;
            padding-bottom:35px;
            border-bottom:1px solid #3b3049;
        }
        .footer-brand{max-width:300px}
        .footer-brand strong{color:#fff;display:block;font-size:17px;margin-bottom:9px}
        .footer-brand p{font-size:13px;color:#a99db2}
        .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
        .footer-links h3{font-size:13px;color:#fff;margin-bottom:12px}
        .footer-links a{display:block;font-size:13px;color:#a99db2;margin:7px 0;transition:.2s}
        .footer-links a:hover{color:#fff}
        .copyright{
            display:flex;
            justify-content:space-between;
            gap:20px;
            padding-top:20px;
            color:#887b94;
            font-size:12px;
        }
        @media (max-width:1024px){
            .nav-wrap{gap:16px}
            .nav{gap:0}
            .nav a{padding:8px 8px;font-size:13px}
            .hero-layout{gap:40px}
            .download-panel{gap:32px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .topbar{height:68px}
            .nav-wrap{justify-content:space-between}
            .logo-text{font-size:13px}
            .menu-toggle{display:block}
            .nav{
                display:none;
                position:absolute;
                top:68px;
                left:16px;
                right:16px;
                padding:10px;
                background:#fffdfb;
                border:1px solid var(--line);
                border-radius:16px;
                box-shadow:var(--shadow);
                flex-direction:column;
                align-items:stretch;
            }
            .nav.open{display:flex}
            .nav a{padding:12px 14px}
            .nav-cta{display:none}
            .hero{padding:48px 0 46px}
            .hero-layout,.download-panel,.compatibility{grid-template-columns:1fr}
            .hero-layout{gap:38px}
            h1{font-size:42px}
            .section{padding:58px 0}
            .section-head{display:block}
            .section-intro{margin-top:15px}
            .download-panel{padding:20px}
            .download-visual{min-height:270px}
            .steps{grid-template-columns:1fr;gap:32px}
            .steps:before{left:27px;top:54px;bottom:54px;width:1px;height:auto;right:auto}
            .step{padding:0 0 0 84px}
            .step-number{position:absolute;left:0;top:0}
            .access-row{grid-template-columns:1fr}
            .cta-inner{display:block}
            .cta .btn{margin-top:22px}
            .footer-top{display:block}
            .footer-links{margin-top:30px;gap:22px}
            .copyright{display:block}
            .copyright span{display:block;margin-top:7px}
        }
        @media (max-width:520px){
            .logo-mark{width:34px;height:34px;border-radius:10px}
            .logo-text{max-width:180px;white-space:normal;line-height:1.2}
            h1{font-size:35px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .device-stage{min-height:365px;padding:15px}
            .phone{transform:scale(.88)}
            .stage-label{font-size:12px}
            .stage-label.one{left:12px;top:42px}
            .stage-label.two{right:10px;bottom:28px}
            .download-info h2{font-size:28px}
            .device-table-row{grid-template-columns:1fr;gap:3px;padding:14px 16px}
            .device-table-row.head{display:none}
            .footer-links{grid-template-columns:1fr 1fr}
            .footer-links>div:last-child{grid-column:1/-1}
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}