/* roulang page: index */
:root{
            --ink:#17141f;
            --purple:#271d34;
            --purple-2:#39284a;
            --lime:#c8f05a;
            --orange:#e99568;
            --cream:#f4f1ea;
            --lavender:#e9e4ed;
            --paper:#fffdfa;
            --muted:#746e78;
            --line:#ddd6d1;
            --shadow:0 18px 45px rgba(39,29,52,.10);
            --soft-shadow:0 8px 24px rgba(39,29,52,.08);
            --radius:18px;
            --container:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            background:var(--cream);
            color:var(--ink);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
            line-height:1.75;
            font-size:16px;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
        .notice{
            height:38px;background:var(--purple);color:#eee8f0;font-size:13px;
            display:flex;align-items:center;
        }
        .notice-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}
        .notice strong{color:var(--lime);font-weight:700;margin-right:8px}
        .notice a{color:var(--lime);white-space:nowrap}
        .site-header{
            background:rgba(244,241,234,.94);border-bottom:1px solid var(--line);
            position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)
        }
        .nav{min-height:78px;display:flex;align-items:center;gap:32px}
        .brand{display:flex;align-items:center;gap:11px;min-width:310px}
        .brand-mark{
            width:36px;height:36px;background:var(--lime);color:var(--purple);
            display:grid;place-items:center;font-weight:900;border-radius:10px;
            transform:rotate(-6deg);font-size:18px
        }
        .brand-name{font-weight:850;letter-spacing:-.5px;font-size:15px;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:4px;flex:1}
        .nav-links a{
            padding:27px 12px 24px;font-size:14px;color:#5d5662;position:relative;
            transition:.25s ease;white-space:nowrap
        }
        .nav-links a:hover,.nav-links a.active{color:var(--purple)}
        .nav-links a.active:after{
            content:"";height:3px;background:var(--lime);position:absolute;left:12px;right:12px;bottom:15px;border-radius:4px
        }
        .nav-tools{display:flex;align-items:center;gap:10px}
        .search-toggle{
            width:40px;height:40px;border:1px solid var(--line);background:transparent;
            border-radius:50%;color:var(--purple);font-size:18px
        }
        .download-btn,.btn-primary{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            background:var(--lime);color:var(--purple);border:1px solid var(--lime);
            border-radius:10px;padding:11px 18px;font-weight:800;font-size:14px;
            transition:.25s ease
        }
        .download-btn:hover,.btn-primary:hover{background:#b5df42;transform:translateY(-2px);box-shadow:var(--soft-shadow)}
        .btn-secondary{
            display:inline-flex;align-items:center;justify-content:center;gap:8px;
            border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;
            padding:11px 18px;font-weight:700;font-size:14px;transition:.25s ease
        }
        .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--purple)}
        .hero{
            background:var(--purple);color:#fff;overflow:hidden;position:relative;padding:72px 0 76px
        }
        .hero:before{
            content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(200,240,90,.2);
            border-radius:50%;right:-100px;top:-180px;box-shadow:0 0 0 34px rgba(200,240,90,.035),0 0 0 70px rgba(200,240,90,.025)
        }
        .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;position:relative}
        .eyebrow,.section-kicker{
            text-transform:uppercase;letter-spacing:2px;font-size:12px;font-weight:800;color:var(--orange)
        }
        .hero h1{font-size:clamp(38px,5vw,64px);line-height:1.13;letter-spacing:-2px;margin:18px 0 22px;max-width:720px}
        .hero h1 em{color:var(--lime);font-style:normal}
        .hero-copy{color:#d9d0df;max-width:650px;font-size:17px;line-height:1.9}
        .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
        .hero-meta{display:flex;gap:28px;margin-top:38px;color:#aea4b6;font-size:13px}
        .hero-meta b{display:block;color:#fff;font-size:17px;margin-bottom:2px}
        .content-panel{
            background:#332542;border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:24px;
            box-shadow:0 18px 50px rgba(0,0,0,.2)
        }
        .panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
        .panel-head h2{font-size:19px}
        .panel-head span{font-size:12px;color:var(--lime)}
        .index-list{list-style:none}
        .index-list li{border-top:1px solid rgba(255,255,255,.12);padding:15px 0;display:flex;gap:14px}
        .index-no{color:var(--lime);font-weight:900;font-size:13px;padding-top:2px}
        .index-list strong{display:block;font-size:14px;line-height:1.5}
        .index-list small{color:#aaa0b2;font-size:12px}
        .mini-app{margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;gap:15px}
        .qr{width:58px;height:58px;background:repeating-linear-gradient(45deg,#fff 0 4px,#222 4px 8px);border:5px solid #fff;border-radius:5px}
        .mini-app b{font-size:14px}.mini-app small{display:block;color:#bcb2c3;font-size:12px}
        .section{padding:84px 0}
        .section.alt{background:var(--lavender)}
        .section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
        .section-heading h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin-top:7px}
        .section-heading p{color:var(--muted);max-width:520px}
        .text-link{font-size:14px;color:var(--purple);font-weight:800;white-space:nowrap}
        .text-link:hover{color:#8c4f42}
        .feature-layout{display:grid;grid-template-columns:1.55fr .85fr;gap:22px}
        .feature-card{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            overflow:hidden;display:grid;grid-template-columns:1fr .72fr;min-height:310px;box-shadow:var(--soft-shadow);
            transition:.25s ease
        }
        .feature-card:hover,.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .feature-info{padding:32px}
        .tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:6px;background:#eee8d9;color:#674b38;font-size:12px;font-weight:800}
        .tag.green{background:#e6f5bd;color:#3b5420}.tag.pink{background:#f8ded1;color:#794630}
        .feature-card h3{font-size:25px;line-height:1.4;margin:18px 0 12px}
        .feature-card p{color:var(--muted);font-size:14px}
        .card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:25px;color:#8b838c;font-size:12px}
        .visual{background:linear-gradient(135deg,#48365a,#241a31);position:relative;min-height:240px;overflow:hidden}
        .visual:before{content:"";position:absolute;inset:25px;border:1px solid rgba(200,240,90,.5);transform:rotate(-8deg)}
        .visual:after{content:"更新 / 01";position:absolute;right:22px;bottom:23px;color:var(--lime);font-weight:900;font-size:22px;letter-spacing:2px}
        .updates{background:var(--purple);color:#fff;border-radius:var(--radius);padding:26px}
        .updates h3{font-size:20px;margin-bottom:8px}.updates p{color:#bfb4c4;font-size:13px;margin-bottom:14px}
        .update-item{padding:17px 0;border-top:1px solid rgba(255,255,255,.16);display:flex;gap:14px}
        .update-item b{color:var(--orange);font-size:13px}.update-item strong{font-size:14px;line-height:1.5}
        .topic-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr .9fr;gap:14px;align-items:stretch}
        .topic-card{border:1px solid var(--line);background:var(--paper);border-radius:14px;padding:24px;min-height:190px;transition:.25s ease;position:relative}
        .topic-card:nth-child(2){margin-top:28px;background:#fff4e9}.topic-card:nth-child(3){min-height:230px;background:var(--purple);color:#fff}.topic-card:nth-child(4){margin-top:48px;background:#e5f2bd}
        .topic-number{font-size:12px;color:var(--orange);font-weight:900;letter-spacing:1px}
        .topic-card:nth-child(3) .topic-number{color:var(--lime)}
        .topic-card h3{font-size:21px;margin:18px 0 9px;line-height:1.35}.topic-card p{font-size:13px;color:var(--muted)}.topic-card:nth-child(3) p{color:#cfc4d4}
        .topic-card a{position:absolute;bottom:20px;font-size:13px;font-weight:800}
        .app-section{background:var(--purple);color:#fff;padding:78px 0}
        .app-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}
        .device-stage{height:350px;display:flex;justify-content:center;align-items:center;position:relative}
        .device{
            width:190px;height:330px;background:#11101a;border:7px solid #5c4a68;border-radius:29px;
            padding:32px 13px 15px;box-shadow:20px 20px 0 rgba(200,240,90,.12);position:relative
        }
        .device:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:58px;height:5px;border-radius:8px;background:#5c4a68}
        .screen{height:100%;border-radius:15px;background:#39284a;padding:17px 12px}
        .screen-line{height:9px;background:var(--lime);width:72%;margin-bottom:15px;border-radius:4px}.screen-block{height:55px;background:#574363;border-radius:8px;margin:12px 0}.screen-block.short{height:30px;width:75%}
        .app-copy h2{font-size:35px;line-height:1.3;margin:9px 0 17px}.app-copy p{color:#cfc5d5;max-width:580px}
        .app-details{display:flex;gap:28px;margin:25px 0;color:#c7bccd;font-size:13px}.app-details b{display:block;color:#fff;font-size:15px}
        .app-actions{display:flex;gap:12px;flex-wrap:wrap}
        .app-note{font-size:12px;color:#9f95a7;margin-top:17px}
        .timeline{border-left:2px solid #c9c1c9;margin:20px 0 0 10px;padding-left:28px}
        .timeline-item{position:relative;padding:0 0 28px}.timeline-item:before{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:var(--orange);left:-35px;top:9px;box-shadow:0 0 0 5px var(--cream)}
        .timeline-item time{font-size:12px;color:#9a6a50;font-weight:800}.timeline-item h3{font-size:18px;margin:4px 0}.timeline-item p{color:var(--muted);font-size:14px}
        .faq-list{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;background:none;border:0;text-align:left;padding:21px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
        .faq-question span:last-child{font-size:22px;color:var(--orange);transition:.25s}
        .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .35s ease}
        .faq-answer p{padding:0 35px 20px 4px}.faq-item.open .faq-answer{max-height:150px}.faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--purple)}
        .cta{background:#e5f2bd;padding:48px;border-radius:22px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta h2{font-size:30px;line-height:1.3}.cta p{color:#596143;margin-top:8px}
        .footer{background:var(--ink);color:#fff;padding:52px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:42px}
        .footer-brand{font-size:16px;font-weight:800;max-width:270px;line-height:1.5}.footer-brand p{font-size:13px;color:#a8a1ad;font-weight:400;margin-top:15px}
        .footer h3{font-size:14px;color:var(--lime);margin-bottom:15px}.footer ul{list-style:none}.footer li{margin:8px 0;font-size:13px;color:#b9b2bd}.footer a:hover{color:var(--lime)}
        .copyright{border-top:1px solid #38343d;padding-top:20px;color:#89838f;font-size:12px;display:flex;justify-content:space-between;gap:20px}
        @media(max-width:1050px){.brand{min-width:240px}.nav{gap:14px}.nav-links a{padding-left:8px;padding-right:8px}.topic-grid{grid-template-columns:1fr 1fr}.topic-card:nth-child(2),.topic-card:nth-child(4){margin-top:0}}
        @media(max-width:768px){
            .container{width:min(100% - 36px,var(--container))}.notice{height:34px}.notice-inner{white-space:nowrap;overflow:hidden}.notice a{display:none}
            .nav{min-height:68px}.brand{min-width:0;flex:1}.brand-name{font-size:13px;max-width:220px}.brand-name span{display:none}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);padding:12px 18px;border-bottom:1px solid var(--line);box-shadow:var(--soft-shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:14px 12px}.nav-links a.active:after{left:0;right:auto;top:16px;bottom:16px;width:3px}.menu-toggle{display:block}.nav-tools .download-btn{display:none}
            .hero{padding:52px 0 58px}.hero-grid,.feature-layout,.app-grid{grid-template-columns:1fr;gap:32px}.hero h1{font-size:40px;letter-spacing:-1px}.hero-meta{margin-top:28px}.feature-card{grid-template-columns:1fr}.visual{min-height:170px}.updates{padding:22px}.section{padding:60px 0}.section-heading{display:block}.section-heading h2{font-size:29px;margin-bottom:12px}.section-heading .text-link{display:inline-block;margin-top:16px}.topic-card:nth-child(3){min-height:190px}.topic-card:nth-child(4){min-height:190px}.app-section{padding:60px 0}.app-grid{gap:15px}.device-stage{height:300px}.app-copy h2{font-size:30px}.footer-grid{grid-template-columns:1fr 1fr}.cta{display:block;padding:32px}.cta .btn-primary{margin-top:22px}
        }
        @media(max-width:520px){
            .brand-mark{width:32px;height:32px;font-size:16px}.brand-name{font-size:12px}.search-toggle{width:36px;height:36px}
            .hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions a{width:100%}.hero-meta{gap:16px;flex-wrap:wrap}
            .feature-info{padding:24px}.feature-card h3{font-size:21px}.topic-grid{grid-template-columns:1fr}.topic-card:nth-child(2),.topic-card:nth-child(4){margin-top:0}
            .app-details{gap:15px;flex-wrap:wrap}.app-actions a{width:100%}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
        }

/* roulang page: category2 */
:root{
 --ink:#17141f;--purple:#271d34;--purple-2:#39284a;--lime:#c8f05a;
 --orange:#e99568;--cream:#f4f1ea;--lavender:#e9e4ed;--paper:#fffdfa;
 --muted:#746e78;--line:#ddd6d1;--shadow:0 18px 45px rgba(39,29,52,.10);
 --soft-shadow:0 8px 24px rgba(39,29,52,.08);--radius:18px;--container:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.notice{background:var(--purple);color:#eee7f0;font-size:13px}
.notice-inner{min-height:36px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.notice strong{color:var(--lime);margin-right:10px}
.notice a{color:var(--lime);white-space:nowrap}
.site-header{background:rgba(244,241,234,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav{min-height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:310px}
.brand-mark{width:36px;height:36px;background:var(--lime);color:var(--purple);display:grid;place-items:center;font-weight:900;border-radius:10px;transform:rotate(-6deg);font-size:18px}
.brand-name{font-weight:850;letter-spacing:-.5px;font-size:15px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:4px;flex:1}
.nav-links a{padding:27px 12px 24px;font-size:14px;color:#5d5662;position:relative;transition:.25s ease;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--purple)}
.nav-links a.active:after{content:"";height:3px;background:var(--lime);position:absolute;left:12px;right:12px;bottom:15px;border-radius:4px}
.nav-tools{display:flex;align-items:center;gap:10px}
.search-toggle{width:40px;height:40px;border:1px solid var(--line);background:transparent;border-radius:50%;color:var(--purple);font-size:18px}
.download-btn,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--lime);color:var(--purple);border:1px solid var(--lime);border-radius:10px;padding:11px 18px;font-weight:800;font-size:14px;transition:.25s ease}
.download-btn:hover,.btn-primary:hover{background:#b5df42;transform:translateY(-2px);box-shadow:var(--soft-shadow)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;padding:11px 18px;font-weight:700;font-size:14px;transition:.25s ease}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--purple)}
.search-panel{display:none;border-top:1px solid var(--line);padding:14px 0;background:var(--paper)}
.search-panel.show{display:block}
.search-form{display:flex;max-width:560px;margin-left:auto}
.search-form input{flex:1;border:1px solid var(--line);border-right:0;border-radius:10px 0 0 10px;padding:10px 14px;background:#fff}
.search-form button{border:0;background:var(--purple);color:#fff;border-radius:0 10px 10px 0;padding:0 20px}
.hero-inner{background:var(--purple);color:#fff;padding:64px 0 70px;position:relative;overflow:hidden}
.hero-inner:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(200,240,90,.2);border-radius:50%;right:-120px;top:-180px;box-shadow:0 0 0 32px rgba(200,240,90,.04),0 0 0 70px rgba(200,240,90,.025)}
.breadcrumb{font-size:13px;color:#a9a0b0;margin-bottom:25px;position:relative;z-index:1}
.breadcrumb a{color:var(--lime)}
.hero-copy{position:relative;z-index:1;max-width:800px}
.eyebrow,.section-kicker{text-transform:uppercase;letter-spacing:2px;font-size:12px;font-weight:800;color:var(--orange)}
.hero-inner h1{font-size:clamp(38px,5vw,60px);line-height:1.14;letter-spacing:-2px;margin:15px 0 18px}
.hero-inner h1 em{color:var(--lime);font-style:normal}
.hero-inner p{color:#d9d0df;font-size:17px;max-width:700px;margin:0}
.hero-meta{display:flex;gap:26px;margin-top:30px;color:#aaa0b2;font-size:13px}
.hero-meta b{display:block;color:#fff;font-size:16px}
.section{padding:76px 0}
.section.alt{background:var(--lavender)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
.section-heading h2{font-size:32px;line-height:1.25;letter-spacing:-1px;margin:6px 0}
.section-heading p{color:var(--muted);max-width:550px;margin:0}
.filter-bar{display:flex;flex-wrap:wrap;gap:9px;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:14px;margin-bottom:30px;box-shadow:var(--soft-shadow)}
.filter-btn{border:1px solid var(--line);background:#fff;color:#5e5661;border-radius:8px;padding:8px 14px;font-size:13px;transition:.2s}
.filter-btn:hover,.filter-btn.active{background:var(--purple);border-color:var(--purple);color:#fff}
.filter-btn:disabled{opacity:.45;cursor:not-allowed}
.guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px}
.guide-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--soft-shadow)}
.guide-item{display:grid;grid-template-columns:74px 1fr auto;gap:20px;padding:26px 28px;border-bottom:1px solid var(--line);transition:.25s}
.guide-item:last-child{border-bottom:0}
.guide-item:hover{background:#fff8ef}
.guide-number{font-size:28px;font-weight:900;color:var(--orange);line-height:1}
.guide-number small{display:block;font-size:11px;color:var(--muted);font-weight:700;margin-top:7px;letter-spacing:1px}
.guide-content h3{font-size:21px;line-height:1.4;margin:10px 0 6px}
.guide-content p{font-size:14px;color:var(--muted);margin:0;max-width:620px}
.guide-meta{display:flex;flex-wrap:wrap;gap:15px;color:#8d858c;font-size:12px;margin-top:13px}
.tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:6px;background:#eee8d9;color:#674b38;font-size:12px;font-weight:800}
.tag.green{background:#e6f5bd;color:#3b5420}
.tag.pink{background:#f8ded1;color:#794630}
.guide-link{align-self:center;font-size:13px;font-weight:800;color:var(--purple);white-space:nowrap}
.guide-link:hover{color:#8c4f42}
.sidebar{display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:23px;box-shadow:var(--soft-shadow)}
.side-card.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
.side-card h3{font-size:19px;margin:0 0 15px}
.side-card p{font-size:14px;color:var(--muted);margin:0 0 16px}
.side-card.dark p{color:#cfc4d4}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{padding:12px 0;border-top:1px solid var(--line);font-size:14px}
.side-card.dark .side-list li{border-color:rgba(255,255,255,.14)}
.side-list a:hover{color:#8c4f42}
.step-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px;min-height:160px}
.step b{display:grid;place-items:center;width:32px;height:32px;background:var(--lime);color:var(--purple);border-radius:9px;margin-bottom:16px}
.step h3{font-size:18px;margin:0 0 7px}
.step p{font-size:14px;color:var(--muted);margin:0}
.faq-list{max-width:850px;margin:auto}
.faq-item{border-top:1px solid var(--line)}
.faq-question{width:100%;border:0;background:transparent;text-align:left;padding:20px 4px;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;align-items:center}
.faq-question span:last-child{font-size:22px;color:var(--orange);transition:.25s}
.faq-answer{display:none;color:var(--muted);font-size:15px;padding:0 35px 20px 4px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--purple)}
.cta{background:var(--orange);padding:54px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta h2{font-size:31px;line-height:1.3;margin:0 0 8px}
.cta p{margin:0;color:#563b36}
.cta .btn-primary{background:var(--purple);color:#fff;border-color:var(--purple)}
.footer{background:var(--purple);color:#fff;padding:56px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px}
.footer-brand{font-size:16px;font-weight:850}
.footer-brand p{color:#bcb1c2;font-size:13px;font-weight:400;max-width:300px;margin-top:14px}
.footer h3{font-size:14px;color:var(--lime);margin:0 0 14px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{color:#c5bbc9;font-size:13px;margin:7px 0}
.footer a:hover{color:var(--lime)}
.copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#998e9f;font-size:12px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
@media(max-width:1100px){
 .brand{min-width:245px}.nav{gap:14px}.nav-links a{padding-left:8px;padding-right:8px}
 .nav-links a.active:after{left:8px;right:8px}.guide-layout{gap:24px}
}
@media(max-width:850px){
 .nav{min-height:68px}.brand{min-width:0;flex:1}.brand-name{font-size:13px}
 .nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 20px;box-shadow:var(--soft-shadow)}
 .nav-links.open{display:flex;flex-direction:column;align-items:stretch}.nav-links a{padding:14px 8px}
 .nav-links a.active:after{left:0;right:auto;width:34px;bottom:7px}.menu-toggle{display:block}.download-btn{display:none}
 .hero-inner{padding:48px 0 55px}.guide-layout{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
 .container{width:min(100% - 36px,var(--container))}
 .notice-inner{min-height:34px;font-size:12px;white-space:nowrap;overflow:hidden}.notice-inner a{display:none}
 .brand-mark{width:32px;height:32px}.brand-name{max-width:210px}
 .hero-inner h1{font-size:36px;letter-spacing:-1px}.hero-inner p{font-size:15px}.hero-meta{gap:18px}
 .section{padding:55px 0}.section-heading{display:block}.section-heading h2{font-size:27px}
 .guide-item{grid-template-columns:44px 1fr;padding:22px 18px;gap:13px}.guide-link{grid-column:2;justify-self:start}
 .guide-number{font-size:23px}.guide-content h3{font-size:18px}.step-strip,.sidebar{grid-template-columns:1fr}
 .cta-inner{display:block}.cta h2{font-size:26px}.cta .btn-primary{margin-top:20px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}
 .copyright{display:block}.copyright span{display:block;margin-top:5px}
}

/* roulang page: category1 */
:root{
      --ink:#17141f;
      --purple:#271d34;
      --purple-2:#39284a;
      --lime:#c8f05a;
      --orange:#e99568;
      --cream:#f4f1ea;
      --lavender:#e9e4ed;
      --paper:#fffdfa;
      --muted:#746e78;
      --line:#ddd6d1;
      --shadow:0 18px 45px rgba(39,29,52,.10);
      --soft-shadow:0 8px 24px rgba(39,29,52,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--cream);color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;line-height:1.75
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .notice{background:var(--purple);color:#fff;font-size:13px}
    .notice-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .notice-label{color:var(--lime);font-weight:800;margin-right:8px}
    .notice a{color:var(--lime);white-space:nowrap}
    .site-header{
      background:rgba(244,241,234,.94);border-bottom:1px solid var(--line);
      position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)
    }
    .nav{min-height:78px;display:flex;align-items:center;gap:32px}
    .brand{display:flex;align-items:center;gap:11px;min-width:310px}
    .brand-mark{
      width:36px;height:36px;background:var(--lime);color:var(--purple);
      display:grid;place-items:center;font-weight:900;border-radius:10px;
      transform:rotate(-6deg);font-size:18px
    }
    .brand-name{font-weight:850;letter-spacing:-.5px;font-size:15px;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{
      padding:27px 12px 24px;font-size:14px;color:#5d5662;position:relative;
      transition:.25s ease;white-space:nowrap
    }
    .nav-links a:hover,.nav-links a.active{color:var(--purple)}
    .nav-links a.active:after{
      content:"";height:3px;background:var(--lime);position:absolute;
      left:12px;right:12px;bottom:15px;border-radius:4px
    }
    .nav-tools{display:flex;align-items:center;gap:10px}
    .search-toggle{
      width:40px;height:40px;border:1px solid var(--line);background:transparent;
      border-radius:50%;color:var(--purple);font-size:18px
    }
    .download-btn,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      background:var(--lime);color:var(--purple);border:1px solid var(--lime);
      border-radius:10px;padding:11px 18px;font-weight:800;font-size:14px;transition:.25s ease
    }
    .download-btn:hover,.btn-primary:hover{background:#b5df42;transform:translateY(-2px);box-shadow:var(--soft-shadow)}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;
      padding:11px 18px;font-weight:700;font-size:14px;transition:.25s ease
    }
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--purple)}
    button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    .page-hero{background:var(--purple);color:#fff;padding:62px 0 58px;position:relative;overflow:hidden}
    .page-hero:after{
      content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(200,240,90,.22);
      border-radius:50%;right:-100px;top:-220px;box-shadow:0 0 0 32px rgba(200,240,90,.04),0 0 0 70px rgba(200,240,90,.025)
    }
    .breadcrumb{font-size:13px;color:#aaa0b2;margin-bottom:24px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .page-hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:50px;align-items:end;position:relative;z-index:1}
    .eyebrow,.section-kicker{text-transform:uppercase;letter-spacing:2px;font-size:12px;font-weight:800;color:var(--orange)}
    .page-hero h1{font-size:clamp(38px,5vw,60px);line-height:1.15;letter-spacing:-2px;margin:15px 0 18px}
    .page-hero h1 em{font-style:normal;color:var(--lime)}
    .hero-copy{color:#d9d0df;max-width:720px;font-size:17px;line-height:1.9;margin:0}
    .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14)}
    .hero-stat{padding:20px;background:rgba(39,29,52,.65)}
    .hero-stat strong{display:block;color:var(--lime);font-size:27px;line-height:1.2}
    .hero-stat span{font-size:12px;color:#c8bfcc}
    .section{padding:82px 0}
    .section.alt{background:var(--lavender)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-heading h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:7px 0 0}
    .section-heading p{color:var(--muted);max-width:550px;margin:0}
    .text-link{font-size:14px;color:var(--purple);font-weight:800;white-space:nowrap}
    .text-link:hover{color:#8c4f42}
    .news-layout{display:grid;grid-template-columns:1.55fr .75fr;gap:24px;align-items:start}
    .lead-news{
      background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
      padding:34px;box-shadow:var(--soft-shadow);min-height:330px
    }
    .tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:6px;background:#eee8d9;color:#674b38;font-size:12px;font-weight:800}
    .tag.green{background:#e6f5bd;color:#3b5420}
    .tag.pink{background:#f8ded1;color:#794630}
    .lead-news h2{font-size:29px;line-height:1.4;margin:20px 0 13px;max-width:700px}
    .lead-news p{color:var(--muted);max-width:700px;margin:0}
    .meta{display:flex;gap:18px;flex-wrap:wrap;color:#8b838c;font-size:12px;margin-top:25px}
    .lead-actions{margin-top:28px}
    .date-index{background:var(--purple);color:#fff;border-radius:var(--radius);padding:26px 25px;box-shadow:var(--soft-shadow)}
    .date-index h3{font-size:18px;margin:0 0 16px}
    .date-index ul{list-style:none;padding:0;margin:0}
    .date-index li{border-top:1px solid rgba(255,255,255,.15);padding:13px 0;display:flex;justify-content:space-between;gap:12px;color:#c9c0ce;font-size:13px}
    .date-index li strong{color:var(--lime);font-weight:700}
    .timeline-wrap{max-width:930px}
    .timeline-item{display:grid;grid-template-columns:145px 1fr;gap:28px;padding:25px 0;border-top:1px solid var(--line);position:relative}
    .timeline-date{color:#8a5960;font-weight:800;font-size:14px;padding-top:5px}
    .timeline-content{position:relative;padding-left:25px}
    .timeline-content:before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;background:var(--orange);border-radius:50%;box-shadow:0 0 0 5px var(--cream)}
    .timeline-content h3{font-size:21px;line-height:1.45;margin:0 0 7px}
    .timeline-content p{color:var(--muted);font-size:14px;margin:0;max-width:720px}
    .item-bottom{display:flex;align-items:center;gap:15px;margin-top:13px}
    .read-link{font-weight:800;font-size:13px;color:var(--purple)}
    .read-link:hover{color:#8c4f42}
    .side-index{display:grid;gap:13px}
    .side-box{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:21px}
    .side-box h3{font-size:17px;margin:0 0 12px}
    .side-box a{display:block;border-top:1px solid var(--line);padding:10px 0;font-size:13px;color:#564e5b}
    .side-box a:hover{color:#8c4f42}
    .content-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .info-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:29px}
    .info-panel.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
    .info-panel h3{font-size:22px;margin:0 0 12px}
    .info-panel p{color:var(--muted);font-size:14px;margin:0}
    .info-panel.dark p{color:#cfc5d5}
    .mini-list{list-style:none;padding:0;margin:17px 0 0}
    .mini-list li{display:flex;gap:12px;border-top:1px solid var(--line);padding:12px 0;font-size:14px}
    .info-panel.dark .mini-list li{border-color:rgba(255,255,255,.15)}
    .mini-list b{color:var(--orange);min-width:24px}
    .faq-list{max-width:900px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:20px 4px;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;gap:20px}
    .faq-question span:last-child{font-size:22px;color:var(--orange);transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 21px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--purple)}
    .cta{background:var(--purple);color:#fff;border-radius:24px;padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:30px;line-height:1.3;margin:0 0 9px}
    .cta p{color:#cfc5d5;margin:0;font-size:14px}
    .footer{background:#17141f;color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px}
    .footer-brand{font-weight:850;line-height:1.5}
    .footer-brand p{color:#aaa0b2;font-size:13px;font-weight:400;max-width:285px;margin-top:13px}
    .footer h3{font-size:14px;margin:0 0 13px;color:var(--lime)}
    .footer ul{list-style:none;padding:0;margin:0}
    .footer li{color:#aaa0b2;font-size:13px;margin:7px 0}
    .footer li a:hover{color:var(--lime)}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;color:#82788a;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    .search-panel{display:none;background:var(--paper);border-bottom:1px solid var(--line);padding:14px 0}
    .search-panel.show{display:block}
    .search-form{display:flex;gap:10px;max-width:620px;margin-left:auto}
    .search-form input{flex:1;border:1px solid var(--line);border-radius:9px;padding:10px 13px;background:#fff}
    @media(max-width:1100px){
      .brand{min-width:250px}.nav{gap:14px}.nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a.active:after{left:8px;right:8px}.news-layout{grid-template-columns:1fr}
      .date-index{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start}
      .date-index ul{display:grid;grid-template-columns:repeat(3,1fr);gap:0 18px}
    }
    @media(max-width:820px){
      .nav{min-height:68px}.brand-name{font-size:13px}.brand{min-width:0;flex:1}
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:68px;background:var(--paper);border:1px solid var(--line);border-radius:0 0 14px 14px;padding:7px;box-shadow:var(--shadow)}
      .nav-links.open{display:block}.nav-links a{display:block;padding:13px 15px;border-radius:8px}
      .nav-links a.active:after{display:none}.nav-links a.active{background:#e6f5bd}
      .menu-toggle{display:block}.nav-tools .download-btn{display:none}
      .page-hero-grid,.content-columns{grid-template-columns:1fr}.page-hero{padding:45px 0}
      .section{padding:62px 0}.timeline-item{grid-template-columns:105px 1fr;gap:17px}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:1/-1}
      .cta{display:block;padding:32px 27px}.cta .btn-primary{margin-top:22px}
    }
    @media(max-width:560px){
      .container{width:min(100% - 36px,var(--container))}
      .notice-inner{white-space:nowrap;overflow:hidden}.notice-inner a{display:none}
      .brand-name{max-width:190px}.brand-mark{width:32px;height:32px;font-size:16px}
      .search-toggle{width:36px;height:36px}.page-hero h1{font-size:38px}
      .hero-copy{font-size:15px}.hero-stats{grid-template-columns:1fr 1fr}
      .lead-news{padding:24px}.lead-news h2{font-size:24px}
      .section-heading{display:block}.section-heading h2{font-size:28px}.section-heading p{margin-top:10px}
      .date-index{display:block}.date-index ul{grid-template-columns:1fr 1fr}
      .timeline-item{grid-template-columns:1fr;gap:4px}.timeline-date{padding:0}
      .timeline-content{padding-left:20px}.info-panel{padding:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:5px}
      .search-form{margin:0}.cta h2{font-size:25px}
    }

/* roulang page: category4 */
:root{
 --ink:#17141f;
 --purple:#271d34;
 --purple-2:#39284a;
 --lime:#c8f05a;
 --orange:#e99568;
 --cream:#f4f1ea;
 --lavender:#e9e4ed;
 --paper:#fffdfa;
 --muted:#746e78;
 --line:#ddd6d1;
 --shadow:0 18px 45px rgba(39,29,52,.10);
 --soft-shadow:0 8px 24px rgba(39,29,52,.08);
 --radius:18px;
 --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;background:var(--cream);color:var(--ink);
 font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
 line-height:1.75;font-size:16px
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.notice{background:var(--purple);color:#e8e0eb;font-size:13px}
.notice-inner{min-height:38px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.notice strong{color:var(--lime);margin-right:9px}
.notice a{color:var(--lime);white-space:nowrap}
.site-header{
 background:rgba(244,241,234,.94);border-bottom:1px solid var(--line);
 position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)
}
.nav{min-height:78px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:11px;min-width:310px}
.brand-mark{
 width:36px;height:36px;background:var(--lime);color:var(--purple);
 display:grid;place-items:center;font-weight:900;border-radius:10px;
 transform:rotate(-6deg);font-size:18px
}
.brand-name{font-weight:850;letter-spacing:-.5px;font-size:15px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:4px;flex:1}
.nav-links a{
 padding:27px 12px 24px;font-size:14px;color:#5d5662;position:relative;
 transition:.25s ease;white-space:nowrap
}
.nav-links a:hover,.nav-links a.active{color:var(--purple)}
.nav-links a.active:after{
 content:"";height:3px;background:var(--lime);position:absolute;left:12px;right:12px;bottom:15px;border-radius:4px
}
.nav-tools{display:flex;align-items:center;gap:10px}
.search-toggle{
 width:40px;height:40px;border:1px solid var(--line);background:transparent;
 border-radius:50%;color:var(--purple);font-size:18px;transition:.25s
}
.search-toggle:hover{background:var(--lavender);border-color:var(--purple-2)}
.download-btn,.btn-primary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:var(--lime);color:var(--purple);border:1px solid var(--lime);
 border-radius:10px;padding:11px 18px;font-weight:800;font-size:14px;transition:.25s ease
}
.download-btn:hover,.btn-primary:hover{background:#b5df42;transform:translateY(-2px);box-shadow:var(--soft-shadow)}
.btn-secondary{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;
 padding:11px 18px;font-weight:700;font-size:14px;transition:.25s ease
}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--purple)}
.hero{
 background:var(--purple);color:#fff;overflow:hidden;position:relative;padding:58px 0 64px
}
.hero:before{
 content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,240,90,.2);
 border-radius:50%;right:-120px;top:-220px;
 box-shadow:0 0 0 34px rgba(200,240,90,.035),0 0 0 70px rgba(200,240,90,.025)
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative}
.eyebrow,.section-kicker{text-transform:uppercase;letter-spacing:2px;font-size:12px;font-weight:800;color:var(--orange)}
.hero h1{font-size:clamp(38px,5vw,62px);line-height:1.13;letter-spacing:-2px;margin:18px 0 22px;max-width:650px}
.hero h1 em{color:var(--lime);font-style:normal}
.hero-copy{color:#d9d0df;max-width:620px;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-meta{display:flex;gap:28px;margin-top:38px;color:#aea4b6;font-size:13px}
.hero-meta b{display:block;color:#fff;font-size:17px;margin-bottom:2px}
.breadcrumb{padding:22px 0 0;color:#9c94a0;font-size:13px}
.breadcrumb span{color:#fff;margin:0 7px}
.app-stage{
 min-height:350px;display:flex;justify-content:center;align-items:center;position:relative
}
.phone{
 width:220px;height:390px;border:8px solid #11101a;border-radius:31px;background:#f8f5ef;
 box-shadow:0 22px 45px rgba(0,0,0,.3);padding:14px;position:relative;transform:rotate(5deg)
}
.phone:before{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:64px;height:6px;border-radius:8px;background:#302c38}
.phone-screen{height:100%;border-radius:19px;background:var(--lavender);padding:23px 13px;overflow:hidden}
.screen-top{height:45px;background:var(--purple);border-radius:10px;color:var(--lime);font-weight:800;padding:10px;font-size:12px}
.screen-line{height:10px;border-radius:5px;background:#fff;margin-top:16px}
.screen-line.short{width:63%;background:#c9c1cd}
.screen-panel{margin-top:18px;background:#fff;border-radius:12px;height:92px;padding:12px}
.screen-dot{width:25px;height:25px;border-radius:8px;background:var(--lime);margin-bottom:11px}
.screen-panel i{display:block;width:80%;height:7px;background:#ded8e0;border-radius:4px}
.download-panel{
 background:#fffdfa;color:var(--ink);border:1px solid rgba(255,255,255,.25);
 border-radius:18px;padding:25px;width:310px;position:absolute;right:-10px;bottom:4px;
 box-shadow:var(--shadow)
}
.download-panel h3{font-size:20px;margin:10px 0 6px}
.download-panel p{font-size:13px;color:var(--muted);margin:0 0 16px}
.download-panel .btn-primary{width:100%}
.panel-info{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;margin-top:17px;font-size:12px;color:var(--muted)}
.section{padding:82px 0}
.section.alt{background:var(--lavender)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:32px}
.section-heading h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:7px 0 0}
.section-heading p{color:var(--muted);max-width:520px;margin:0}
.feature-strip{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
.info-card{
 background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
 padding:28px;box-shadow:var(--soft-shadow);transition:.25s ease
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.info-card.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
.info-card h3{font-size:21px;margin:17px 0 10px;line-height:1.4}
.info-card p{font-size:14px;color:var(--muted);margin:0}
.info-card.dark p{color:#d4ccda}
.tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:6px;background:#eee8d9;color:#674b38;font-size:12px;font-weight:800}
.tag.green{background:#e6f5bd;color:#3b5420}
.tag.pink{background:#f8ded1;color:#794630}
.icon-box{width:46px;height:46px;border-radius:13px;background:var(--lime);color:var(--purple);display:grid;place-items:center;font-weight:900;font-size:18px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:26px 22px 12px 0;border-right:1px solid var(--line);margin-right:22px}
.step:last-child{border-right:0;margin-right:0}
.step-num{font-size:38px;line-height:1;color:var(--orange);font-weight:900}
.step h3{font-size:18px;margin:16px 0 7px}
.step p{font-size:14px;color:var(--muted);margin:0}
.notice-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
.notice-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.notice-box h3{margin:0 0 18px;font-size:22px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:12px;font-size:15px}
.check-list li:before{content:"✓";color:#64821f;font-weight:900}
.device-list{display:grid;gap:12px}
.device{display:flex;justify-content:space-between;align-items:center;padding:15px 17px;border:1px solid var(--line);border-radius:12px;background:#fff}
.device strong{font-size:14px}
.device span{color:var(--muted);font-size:12px}
.faq{max-width:860px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-question{
 width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;
 border:0;background:transparent;text-align:left;padding:21px 0;color:var(--ink);font-weight:800;font-size:16px
}
.faq-question span:last-child{font-size:24px;color:var(--orange);transition:.25s}
.faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-answer>div{overflow:hidden;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{grid-template-rows:1fr}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--purple)}
.cta{
 background:var(--orange);padding:55px 0;color:var(--purple)
}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta h2{font-size:32px;line-height:1.3;margin:0 0 8px}
.cta p{margin:0;max-width:620px;color:#5c3b31}
.cta .btn-primary{background:var(--purple);border-color:var(--purple);color:#fff}
.cta .btn-primary:hover{background:var(--purple-2)}
.footer{background:var(--purple);color:#fff;padding:56px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:35px}
.footer-brand{font-weight:850;font-size:16px;line-height:1.5}
.footer-brand p{font-weight:400;font-size:13px;color:#b9afbf;line-height:1.8;margin-top:16px;max-width:270px}
.footer h3{font-size:14px;margin:0 0 15px;color:var(--lime)}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{font-size:13px;color:#b9afbf;margin:8px 0}
.footer li a:hover{color:var(--lime)}
.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#918698;font-size:12px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
@media(max-width:1100px){
 .brand{min-width:250px}.nav{gap:15px}.nav-links a{padding-left:8px;padding-right:8px}
 .nav-links a.active:after{left:8px;right:8px}
 .download-panel{right:-20px}
}
@media(max-width:900px){
 .nav-links{display:none;position:absolute;left:20px;right:20px;top:70px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:9px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}.nav-links a{padding:14px 16px;border-radius:8px}.nav-links a.active:after{display:none}
 .menu-toggle{display:block}.nav-tools .download-btn{display:none}
 .hero-grid,.notice-grid{grid-template-columns:1fr;gap:35px}.app-stage{max-width:580px;margin:auto}
 .feature-strip{grid-template-columns:1fr 1fr}.feature-strip .dark{grid-column:span 2}
 .steps{grid-template-columns:1fr 1fr;gap:18px}.step{border-right:0;margin:0;padding-right:12px}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:600px){
 .container{width:min(var(--container),calc(100% - 36px))}
 .notice-inner{min-height:36px;font-size:12px;white-space:nowrap;overflow:hidden}.notice-inner a{display:none}
 .brand{min-width:0;flex:1}.brand-name{font-size:13px;max-width:190px}
 .hero{padding:42px 0 48px}.hero h1{font-size:39px;letter-spacing:-1px}.hero-copy{font-size:15px}
 .hero-meta{gap:18px;flex-wrap:wrap}.app-stage{min-height:400px}.phone{transform:rotate(3deg);margin-left:-80px}.download-panel{right:-4px;bottom:0;width:245px;padding:20px}
 .section{padding:58px 0}.section-heading{display:block}.section-heading h2{font-size:28px}.section-heading p{margin-top:12px}
 .feature-strip{grid-template-columns:1fr}.feature-strip .dark{grid-column:auto}
 .steps{grid-template-columns:1fr;gap:0}.step{border-bottom:1px solid var(--line);padding:22px 0}.step:last-child{border-bottom:0}
 .cta-inner{display:block}.cta h2{font-size:27px}.cta .btn-primary{margin-top:22px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:span 2}
 .copyright{display:block;line-height:2}
}
@media(max-width:380px){.brand-name{max-width:150px}.phone{margin-left:-100px}.download-panel{right:-12px;width:220px}}

/* roulang page: category3 */
:root{
      --ink:#17141f;
      --purple:#271d34;
      --purple-2:#39284a;
      --lime:#c8f05a;
      --orange:#e99568;
      --cream:#f4f1ea;
      --lavender:#e9e4ed;
      --paper:#fffdfa;
      --muted:#746e78;
      --line:#ddd6d1;
      --shadow:0 18px 45px rgba(39,29,52,.10);
      --soft-shadow:0 8px 24px rgba(39,29,52,.08);
      --radius:18px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--cream);color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;font-size:16px
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .notice{background:var(--purple);color:#eee8f0;font-size:13px}
    .notice-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .notice-label{color:var(--lime);font-weight:800;margin-right:10px}
    .notice a{color:var(--lime);white-space:nowrap}
    .site-header{
      background:rgba(244,241,234,.94);border-bottom:1px solid var(--line);
      position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)
    }
    .nav{min-height:78px;display:flex;align-items:center;gap:32px}
    .brand{display:flex;align-items:center;gap:11px;min-width:310px}
    .brand-mark{
      width:36px;height:36px;background:var(--lime);color:var(--purple);
      display:grid;place-items:center;font-weight:900;border-radius:10px;
      transform:rotate(-6deg);font-size:18px
    }
    .brand-name{font-weight:850;letter-spacing:-.5px;font-size:15px;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{
      padding:27px 12px 24px;font-size:14px;color:#5d5662;position:relative;
      transition:.25s ease;white-space:nowrap
    }
    .nav-links a:hover,.nav-links a.active{color:var(--purple)}
    .nav-links a.active:after{
      content:"";height:3px;background:var(--lime);position:absolute;
      left:12px;right:12px;bottom:15px;border-radius:4px
    }
    .nav-tools{display:flex;align-items:center;gap:10px}
    .search-toggle{
      width:40px;height:40px;border:1px solid var(--line);background:transparent;
      border-radius:50%;color:var(--purple);font-size:18px
    }
    .download-btn,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      background:var(--lime);color:var(--purple);border:1px solid var(--lime);
      border-radius:10px;padding:11px 18px;font-weight:800;font-size:14px;transition:.25s ease
    }
    .download-btn:hover,.btn-primary:hover{background:#b5df42;transform:translateY(-2px);box-shadow:var(--soft-shadow)}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid rgba(255,255,255,.35);color:#fff;border-radius:10px;
      padding:11px 18px;font-weight:700;font-size:14px;transition:.25s ease
    }
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--purple)}
    .hero{
      background:var(--purple);color:#fff;overflow:hidden;position:relative;padding:66px 0 72px
    }
    .hero:before{
      content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,240,90,.2);
      border-radius:50%;right:-150px;top:-210px;
      box-shadow:0 0 0 34px rgba(200,240,90,.035),0 0 0 70px rgba(200,240,90,.025)
    }
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative}
    .eyebrow,.section-kicker{
      text-transform:uppercase;letter-spacing:2px;font-size:12px;font-weight:800;color:var(--orange)
    }
    .hero h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-2px;margin:18px 0 22px;max-width:700px}
    .hero h1 em{color:var(--lime);font-style:normal}
    .hero-copy{color:#d9d0df;max-width:650px;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
    .hero-meta{display:flex;gap:28px;margin-top:38px;color:#aea4b6;font-size:13px}
    .hero-meta b{display:block;color:#fff;font-size:17px;margin-bottom:2px}
    .notice-panel{
      background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
      border-radius:20px;padding:25px;box-shadow:var(--shadow)
    }
    .panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
    .panel-head h2{font-size:18px;margin:0}
    .panel-count{color:var(--lime);font-weight:800;font-size:13px}
    .notice-index{list-style:none;padding:0;margin:0}
    .notice-index li{display:flex;gap:15px;padding:17px 0;border-top:1px solid rgba(255,255,255,.14)}
    .notice-index .number{color:var(--orange);font-weight:900;font-size:13px}
    .notice-index strong{display:block;font-size:14px;line-height:1.5}
    .notice-index small{display:block;color:#aaa0b2;font-size:12px;margin-top:3px}
    .section{padding:82px 0}
    .section.alt{background:var(--lavender)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-heading h2{font-size:34px;line-height:1.25;letter-spacing:-1px;margin:7px 0 0}
    .section-heading p{color:var(--muted);max-width:540px;margin:0}
    .breadcrumb{font-size:13px;color:#8a818b;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--purple)}
    .event-layout{display:grid;grid-template-columns:1.45fr .75fr;gap:24px;align-items:start}
    .feature-event{
      background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
      overflow:hidden;box-shadow:var(--soft-shadow)
    }
    .event-visual{
      min-height:230px;padding:28px;position:relative;overflow:hidden;
      background:linear-gradient(135deg,#39284a,#271d34 62%,#55406b)
    }
    .event-visual:after{
      content:"活动公告";position:absolute;right:28px;bottom:15px;
      color:rgba(255,255,255,.08);font-size:60px;font-weight:900;letter-spacing:-5px
    }
    .event-visual .grid-line{
      position:absolute;inset:28px;border:1px solid rgba(200,240,90,.25);
      background:linear-gradient(90deg,transparent 49%,rgba(200,240,90,.15) 50%,transparent 51%),
      linear-gradient(0deg,transparent 49%,rgba(200,240,90,.15) 50%,transparent 51%);
      background-size:72px 72px;opacity:.7
    }
    .event-visual-content{position:relative;z-index:1}
    .event-visual h2{font-size:30px;color:#fff;max-width:420px;line-height:1.3;margin:26px 0 0}
    .event-body{padding:28px 32px 32px}
    .tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:6px;background:#eee8d9;color:#674b38;font-size:12px;font-weight:800}
    .tag.green{background:#e6f5bd;color:#3b5420}
    .tag.pink{background:#f8ded1;color:#794630}
    .event-body h3{font-size:25px;line-height:1.4;margin:17px 0 12px}
    .event-body p{color:var(--muted);margin:0}
    .event-meta{display:flex;flex-wrap:wrap;gap:18px;color:#766d76;font-size:13px;margin:20px 0 25px}
    .event-meta b{color:var(--purple)}
    .side-stack{display:grid;gap:14px}
    .side-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px}
    .side-card h3{font-size:18px;margin:0 0 14px}
    .side-card ul{padding:0;margin:0;list-style:none}
    .side-card li{border-top:1px solid var(--line);padding:11px 0;font-size:14px;display:flex;justify-content:space-between;gap:12px}
    .side-card li:first-child{border-top:0;padding-top:0}
    .side-card small{color:var(--muted);white-space:nowrap}
    .status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);margin-right:7px}
    .status-dot.orange{background:var(--orange)}
    .status-dot.gray{background:#aaa3a8}
    .filter-bar{
      display:flex;align-items:center;gap:9px;flex-wrap:wrap;
      padding:16px;border:1px solid var(--line);background:var(--paper);border-radius:14px;margin-bottom:35px
    }
    .filter-label{font-weight:800;font-size:14px;margin-right:5px}
    .filter-btn{
      border:1px solid var(--line);background:var(--cream);color:#625a65;
      border-radius:8px;padding:8px 13px;font-size:13px;transition:.2s
    }
    .filter-btn:hover,.filter-btn.active{background:var(--purple);color:#fff;border-color:var(--purple)}
    .timeline-wrap{display:grid;grid-template-columns:1fr 300px;gap:55px}
    .timeline{position:relative;padding-left:36px}
    .timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:#cfc6cf}
    .timeline-item{position:relative;padding:0 0 33px}
    .timeline-item:before{
      content:"";position:absolute;left:-33px;top:8px;width:11px;height:11px;
      border-radius:50%;background:var(--lime);border:3px solid var(--cream);box-shadow:0 0 0 1px var(--purple)
    }
    .timeline-date{color:#9a5d43;font-size:13px;font-weight:800;letter-spacing:.5px}
    .timeline-card{
      margin-top:8px;background:var(--paper);border:1px solid var(--line);
      border-radius:13px;padding:21px 24px;transition:.25s
    }
    .timeline-card:hover{transform:translateX(4px);box-shadow:var(--soft-shadow)}
    .timeline-card h3{font-size:19px;line-height:1.45;margin:10px 0 7px}
    .timeline-card p{color:var(--muted);font-size:14px;margin:0 0 12px}
    .item-foot{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:12px;color:#8b838c}
    .item-foot a{font-weight:800;color:var(--purple)}
    .item-foot a:hover{color:#8c4f42}
    .guide-card{background:var(--purple);color:#fff;border-radius:16px;padding:24px;position:sticky;top:105px}
    .guide-card h3{font-size:21px;margin:0 0 13px}
    .guide-card p{font-size:14px;color:#cfc5d5;margin:0 0 18px}
    .guide-list{list-style:none;padding:0;margin:0}
    .guide-list li{padding:13px 0;border-top:1px solid rgba(255,255,255,.15);font-size:14px}
    .guide-list span{color:var(--lime);font-weight:800;margin-right:8px}
    .history{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .history-card{background:var(--paper);border:1px solid var(--line);padding:23px;border-radius:14px}
    .history-card h3{font-size:18px;margin:13px 0 7px}
    .history-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{max-width:850px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-question{
      width:100%;border:0;background:transparent;text-align:left;padding:21px 4px;
      display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)
    }
    .faq-question:after{content:"+";font-size:24px;font-weight:400;color:var(--purple);transition:.25s}
    .faq-answer{display:none;color:var(--muted);font-size:15px;padding:0 38px 20px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{color:var(--purple)}
    .faq-item.open .faq-question:after{content:"−";color:var(--orange)}
    .cta{
      background:var(--orange);padding:55px 0;color:var(--purple)
    }
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{font-size:31px;line-height:1.3;margin:0 0 8px}
    .cta p{margin:0;color:#553b35;max-width:650px}
    .cta .btn-primary{background:var(--purple);color:#fff;border-color:var(--purple)}
    .cta .btn-primary:hover{background:#39284a}
    .footer{background:var(--purple);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:38px}
    .footer-brand{font-weight:850;font-size:15px;line-height:1.45}
    .footer-brand p{color:#bdb2c4;font-size:13px;font-weight:400;line-height:1.8;margin-top:16px;max-width:270px}
    .footer h3{font-size:14px;margin:0 0 14px;color:var(--lime)}
    .footer ul{padding:0;margin:0;list-style:none}
    .footer li{color:#c4bac8;font-size:13px;margin:8px 0}
    .footer a:hover{color:var(--lime)}
    .copyright{
      border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:18px;
      display:flex;justify-content:space-between;gap:15px;color:#a99ead;font-size:12px
    }
    :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    @media(max-width:1100px){
      .brand{min-width:260px}.nav{gap:16px}.nav-links a{padding-left:8px;padding-right:8px}
      .nav-links a.active:after{left:8px;right:8px}
      .hero-grid{gap:35px}.timeline-wrap{grid-template-columns:1fr 270px}
    }
    @media(max-width:820px){
      .nav{min-height:68px}.brand{min-width:0;flex:1}.brand-name{font-size:13px}
      .nav-links{
        display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);
        border-bottom:1px solid var(--line);padding:8px 20px;box-shadow:var(--soft-shadow);flex-direction:column;align-items:stretch
      }
      .nav-links.show{display:flex}.nav-links a{padding:14px 10px}.nav-links a.active:after{left:0;right:auto;width:45px;bottom:7px}
      .menu-toggle{display:block}.nav-tools .download-btn{display:none}
      .hero{padding:55px 0}.hero-grid,.event-layout,.timeline-wrap{grid-template-columns:1fr}
      .hero h1{letter-spacing:-1px}.hero-meta{margin-top:27px}
      .guide-card{position:static}.history{grid-template-columns:1fr 1fr}
      .cta-inner{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2 / 4}
    }
    @media(max-width:560px){
      .container{width:min(100% - 36px,var(--container))}
      .notice-inner{min-height:34px;white-space:nowrap;overflow:hidden}
      .notice-inner>span:first-child{overflow:hidden;text-overflow:ellipsis}
      .brand-mark{width:32px;height:32px;font-size:16px}.brand-name{font-size:12px}
      .hero h1{font-size:38px}.hero-copy{font-size:15px}.hero-meta{gap:18px;flex-wrap:wrap}
      .event-visual{min-height:190px}.event-visual h2{font-size:25px}.event-body{padding:23px}
      .section{padding:60px 0}.section-heading{display:block}.section-heading h2{font-size:28px;margin-bottom:10px}
      .history{grid-template-columns:1fr}.filter-bar{align-items:flex-start}.filter-label{width:100%}
      .timeline{padding-left:28px}.timeline-item:before{left:-25px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:last-child{grid-column:1 / -1}
      .copyright{display:block}.copyright span{display:block;margin-top:6px}
      .cta h2{font-size:27px}
    }

/* 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}