/* roulang page: index */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:38px;background:var(--purple-deep);color:#e9dff1;font-size:13px;display:flex;align-items:center;overflow:hidden}
        .notice .container{display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-weight:700}
        .site-header{height:78px;background:rgba(250,248,245,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:white;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--purple)}
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--coral);border-radius:3px}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 7px 15px rgba(244,119,98,.20)}
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px}
        .hero{background:var(--purple-deep);color:#fff;position:relative;overflow:hidden;padding:88px 0 82px}
        .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .hero:before{width:490px;height:490px;background:var(--plum);right:-150px;top:-220px;opacity:.55}
        .hero:after{width:260px;height:260px;border:1px solid rgba(97,214,200,.35);right:15%;bottom:-150px}
        .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
        h1{font-size:clamp(34px,4.3vw,62px);line-height:1.16;letter-spacing:-.045em;margin:0 0 23px;max-width:700px}
        .hero-copy{color:#d9cfe3;font-size:17px;max-width:600px;margin:0 0 31px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;padding:11px 19px;border-radius:10px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
        .btn-outline:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .hero-visual{min-height:330px;position:relative;display:flex;align-items:center;justify-content:center}
        .visual-panel{width:min(100%,430px);background:#fff;color:var(--ink);border-radius:24px;padding:27px;box-shadow:0 25px 60px rgba(0,0,0,.25);transform:rotate(2deg)}
        .visual-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}
        .visual-title{font-size:18px;font-weight:900}.visual-dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 6px #e1f6f3}
        .visual-feature{background:var(--lavender);border-radius:17px;padding:22px;margin-bottom:18px}
        .visual-feature span{font-size:12px;color:var(--plum);font-weight:800}.visual-feature h3{font-size:23px;line-height:1.25;margin:7px 0 10px}.visual-feature p{font-size:13px;color:var(--muted);margin:0}
        .visual-lines{display:grid;gap:12px}.visual-line{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:700}.line-icon{width:28px;height:28px;border-radius:9px;background:#fff0ed;color:var(--coral);display:grid;place-items:center;font-weight:900}
        .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:50px;color:#ded4e6}
        section{padding:94px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}.section-kicker{font-size:12px;color:var(--plum);font-weight:900;letter-spacing:.12em;text-transform:uppercase}.section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.2;margin:7px 0 0;letter-spacing:-.035em}.section-head p{margin:0;color:var(--muted);max-width:430px;font-size:14px}
        .entry-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:16px}.entry{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:180px;position:relative;overflow:hidden;box-shadow:var(--soft-shadow)}.entry:first-child{background:var(--lavender);min-height:220px}.entry:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5b9df}.entry-num{font-size:12px;color:var(--coral);font-weight:900}.entry h3{font-size:20px;margin:19px 0 7px}.entry p{font-size:13px;color:var(--muted);margin:0;max-width:260px}.entry-link{position:absolute;right:24px;bottom:22px;font-size:13px;font-weight:900;color:var(--plum)}
        .feature-section{background:#fff}.content-split{display:grid;grid-template-columns:1.02fr .98fr;gap:45px;align-items:stretch}.feature-card{background:var(--purple-deep);border-radius:var(--radius);color:#fff;padding:35px;position:relative;overflow:hidden;min-height:350px}.feature-card:after{content:"C7";position:absolute;right:-15px;bottom:-55px;font-size:190px;font-weight:900;color:rgba(255,255,255,.05)}.feature-card h3{font-size:30px;line-height:1.3;margin:15px 0 12px;max-width:400px}.feature-card p{color:#d7cce1;max-width:430px}.badge{display:inline-block;background:#fff0ed;color:#d95c4a;border-radius:50px;padding:5px 10px;font-size:11px;font-weight:900}.dark-badge{background:rgba(97,214,200,.16);color:var(--cyan)}.content-list{display:grid;gap:13px}.content-item{display:flex;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}.content-item:last-child{border-bottom:0}.content-date{font-size:12px;color:var(--muted);min-width:70px;padding-top:3px}.content-item h3{font-size:16px;line-height:1.4;margin:0 0 5px}.content-item p{font-size:13px;color:var(--muted);margin:0}.latest-wrap{display:grid;grid-template-columns:1fr .9fr;gap:55px}.latest-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:13px 25px}.latest-item{display:flex;align-items:flex-start;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.latest-item:last-child{border:0}.latest-item .date{font-size:12px;color:var(--muted);white-space:nowrap}.latest-item h3{font-size:15px;margin:0 0 3px}.latest-item p{font-size:13px;color:var(--muted);margin:0}.empty-state{padding:35px 15px;text-align:center;color:var(--muted);font-size:14px}
        .app-section{background:var(--plum);color:#fff;overflow:hidden}.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.app-section h2{font-size:42px;line-height:1.2;margin:10px 0 17px}.app-section p{color:#e7dbea;max-width:500px}.app-info{display:flex;gap:20px;flex-wrap:wrap;margin:26px 0}.app-info div{border-left:2px solid var(--cyan);padding-left:12px}.app-info strong{display:block;font-size:14px}.app-info span{font-size:12px;color:#d0c1d7}.device-art{height:310px;display:flex;justify-content:center;align-items:center;position:relative}.phone{width:178px;height:325px;background:#181020;border:8px solid #100b17;border-radius:30px;box-shadow:22px 18px 0 rgba(36,20,53,.35);padding:15px;transform:rotate(7deg)}.phone-screen{height:100%;border-radius:17px;background:var(--cream);padding:15px;color:var(--ink)}.phone-screen b{font-size:13px}.phone-banner{height:93px;border-radius:13px;background:var(--coral);margin:20px 0 14px}.phone-row{height:11px;border-radius:8px;background:#ded5e4;margin:11px 0}.phone-row.short{width:65%}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}.faq-intro p{color:var(--muted);font-size:15px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:19px 0}summary{cursor:pointer;list-style:none;font-weight:800;font-size:16px;display:flex;justify-content:space-between;gap:15px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--coral);font-size:23px;line-height:1}details[open] summary:after{content:"−"}details p{color:var(--muted);font-size:14px;margin:13px 35px 0 0}
        .final-cta{padding:65px 0;background:var(--lavender)}.cta-box{background:var(--purple-deep);color:#fff;border-radius:24px;padding:40px 48px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta-box h2{font-size:30px;margin:0 0 8px}.cta-box p{color:#d8cce1;margin:0}
        footer{background:#1d1128;color:#fff;padding:56px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:40px}.footer-brand p{color:#b9a9c4;font-size:13px;max-width:290px}.footer-title{font-size:13px;color:var(--cyan);font-weight:900;margin-bottom:15px}.footer-links{display:grid;gap:9px;color:#cfc3d5;font-size:13px}.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#9c8ba8;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1024px){.hero-grid{gap:35px}.nav-links{gap:14px}.brand{min-width:205px}.entry-grid{grid-template-columns:1fr 1fr}.entry:first-child{grid-column:span 2}.latest-wrap{gap:30px}.app-grid{gap:35px}}
        @media(max-width:768px){.container{width:min(calc(100% - 34px),var(--container))}.site-header{height:68px}.nav-links,.nav-cta{display:none}.menu-toggle{display:block}.brand{min-width:0}.brand-text{font-size:14px}.nav{height:68px}.hero{padding:62px 0 58px}.hero-grid,.content-split,.latest-wrap,.app-grid,.faq-grid{grid-template-columns:1fr}.hero-visual{min-height:270px;margin-top:15px}.visual-panel{max-width:390px}.section-head{display:block}.section-head p{margin-top:12px}.entry-grid{grid-template-columns:1fr}.entry:first-child{grid-column:auto}.app-section h2{font-size:34px}.device-art{height:280px}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{display:block;padding:32px 27px}.cta-box .btn-primary{margin-top:22px}}
        @media(max-width:520px){.notice{font-size:12px}.brand-mark{width:33px;height:33px;font-size:15px}.brand-text small{font-size:8px}.hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions a{width:100%}.hero-tags{gap:6px}.hero-tags span{font-size:11px}.section-head h2{font-size:29px}.entry{padding:23px}.latest-list{padding:8px 18px}.latest-item{display:block}.latest-item .date{display:block;margin-bottom:5px}.app-section{padding:70px 0}.app-info{gap:13px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
        :focus-visible{outline:3px solid var(--cyan);outline-offset:4px}

/* roulang page: article */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--cream);
            color:var(--ink);
            font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:34px;background:var(--purple-deep);color:#e8dff0;font-size:12px;overflow:hidden}
        .notice .container{height:100%;display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-weight:800}
        .notice-dot{width:6px;height:6px;border-radius:50%;background:var(--coral);flex:none}
        .site-header{
            height:78px;
            background:rgba(250,248,245,.95);
            border-bottom:1px solid var(--line);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(12px);
        }
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{
            width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;
            display:grid;place-items:center;font-weight:900;font-size:17px;
            box-shadow:4px 4px 0 var(--purple);
        }
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{
            content:"";position:absolute;bottom:0;left:0;right:0;height:3px;
            background:var(--coral);border-radius:3px;
        }
        .nav-cta,.btn-primary{
            background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;
            font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;
            box-shadow:0 7px 15px rgba(244,119,98,.20);
        }
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px;padding:8px}
        .article-hero{background:var(--purple-deep);color:#fff;padding:58px 0 64px;position:relative;overflow:hidden}
        .article-hero:before{
            content:"";position:absolute;width:420px;height:420px;border-radius:50%;
            background:var(--plum);right:-120px;top:-220px;opacity:.55;
        }
        .article-hero:after{
            content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(97,214,200,.35);
            border-radius:50%;right:18%;bottom:-150px;
        }
        .hero-inner{position:relative;z-index:1}
        .breadcrumbs{
            display:flex;align-items:center;gap:9px;flex-wrap:wrap;
            color:#cfc1db;font-size:13px;margin-bottom:25px;
        }
        .breadcrumbs a{color:#e9ddec}
        .breadcrumbs a:hover{color:var(--cyan)}
        .crumb-arrow{color:var(--coral);font-size:16px}
        .article-label{
            display:inline-flex;align-items:center;gap:8px;color:var(--cyan);
            font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:15px;
        }
        .article-label:before{content:"";width:25px;height:2px;background:var(--coral)}
        .article-hero h1{
            max-width:850px;font-size:clamp(30px,5vw,58px);line-height:1.2;
            letter-spacing:-.04em;margin:0 0 20px;font-weight:900;
        }
        .article-summary{max-width:760px;color:#d9cfe3;font-size:16px;margin:0 0 23px}
        .article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;color:#c8bad4;font-size:13px}
        .meta-tag{
            color:#3d2554;background:#fff0ed;border-radius:50px;padding:5px 11px;
            font-size:11px;font-weight:900;
        }
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:55px;align-items:start;padding:72px 0 90px}
        .article-card{
            background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
            padding:clamp(25px,5vw,58px);box-shadow:var(--soft-shadow);
        }
        .article-content{font-size:16px;color:#443b52;line-height:1.95;overflow-wrap:anywhere}
        .article-content:after{content:"";display:block;clear:both}
        .article-content h2{
            color:var(--ink);font-size:clamp(23px,3vw,31px);line-height:1.35;
            margin:42px 0 16px;padding-left:16px;border-left:4px solid var(--coral);
        }
        .article-content h3{color:var(--purple);font-size:21px;line-height:1.4;margin:31px 0 10px}
        .article-content p{margin:0 0 21px}
        .article-content ul,.article-content ol{margin:12px 0 25px;padding-left:25px}
        .article-content li{margin:7px 0;padding-left:4px}
        .article-content blockquote{
            margin:28px 0;padding:21px 24px;border-left:4px solid var(--cyan);
            background:var(--lavender);color:var(--purple);border-radius:0 12px 12px 0;
        }
        .article-content img{border-radius:14px;margin:28px auto;box-shadow:var(--soft-shadow)}
        .article-content table{width:100%;margin:25px 0;border-collapse:collapse;font-size:14px;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);color:var(--purple);font-weight:800}
        .article-content code{background:#f2edf5;border-radius:5px;padding:2px 6px;color:var(--plum)}
        .article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}
        .article-side{position:sticky;top:105px}
        .side-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;margin-bottom:16px}
        .side-title{font-size:15px;font-weight:900;margin:0 0 15px;color:var(--purple)}
        .side-card p{font-size:13px;color:var(--muted);margin:0}
        .side-list{display:grid;gap:11px}
        .side-list a{
            display:flex;align-items:flex-start;gap:9px;padding:10px 0;
            border-bottom:1px solid var(--line);font-size:13px;font-weight:700;
        }
        .side-list a:last-child{border-bottom:0}
        .side-list i{width:6px;height:6px;border-radius:50%;background:var(--coral);margin-top:9px;flex:none}
        .side-download{background:var(--purple-deep);color:#fff;border:0}
        .side-download .side-title{color:#fff}
        .side-download p{color:#d8cce1}
        .side-download .btn-primary{width:100%;margin-top:18px}
        .empty-state{text-align:center;padding:35px 12px;color:var(--muted)}
        .empty-state strong{display:block;color:var(--purple);font-size:22px;margin-bottom:8px}
        .empty-state a{display:inline-flex;margin-top:16px;color:var(--coral);font-weight:800}
        .after-article{padding:0 0 92px}
        .after-box{
            background:var(--lavender);border-radius:var(--radius);padding:29px 34px;
            display:flex;justify-content:space-between;align-items:center;gap:25px;
        }
        .after-box h2{font-size:24px;margin:0 0 6px;color:var(--purple)}
        .after-box p{font-size:14px;color:var(--muted);margin:0}
        .after-actions{display:flex;gap:11px;flex-wrap:wrap;flex:none}
        .btn-light{
            color:var(--purple);border:1px solid #cbbbd7;border-radius:10px;padding:11px 18px;
            font-weight:800;background:#fff;display:inline-flex;align-items:center;justify-content:center;
        }
        .btn-light:hover{color:var(--plum);border-color:var(--coral);transform:translateY(-2px)}
        .app-section{background:var(--plum);color:#fff;padding:70px 0;overflow:hidden}
        .app-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
        .app-section .eyebrow{margin-bottom:5px}
        .app-section h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:10px 0 16px}
        .app-section p{color:#e7dbea;max-width:500px;margin:0 0 20px}
        .app-actions{display:flex;gap:11px;flex-wrap:wrap}
        .app-panel{
            background:#fff;color:var(--ink);border-radius:18px;padding:26px;
            max-width:470px;margin-left:auto;box-shadow:var(--shadow);
        }
        .app-panel-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px}
        .app-panel-title{font-size:17px;font-weight:900;color:var(--purple)}
        .version{font-size:11px;color:var(--plum);background:var(--lavender);border-radius:50px;padding:5px 9px;font-weight:800}
        .app-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
        .app-step{font-size:12px;color:var(--muted);border-top:3px solid var(--coral);padding-top:10px}
        .app-step b{display:block;color:var(--purple);font-size:22px;line-height:1;margin-bottom:8px}
        .app-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);margin-top:19px;padding-top:15px}
        footer{background:#1c1029;color:#fff;padding:59px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.55fr .8fr .8fr .8fr;gap:42px;padding-bottom:43px}
        .footer-brand .brand{min-width:0;margin-bottom:17px}
        .footer-brand .brand-text{color:#fff}
        .footer-brand .brand-text small{color:#bbaac9}
        .footer-brand p{color:#bbaac9;max-width:330px;font-size:13px;margin:0}
        .footer-title{font-size:13px;font-weight:900;color:#fff;margin:6px 0 15px}
        .footer-links{display:grid;gap:9px}
        .footer-links a{font-size:13px;color:#bbaac9}
        .footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
        .copyright{
            border-top:1px solid rgba(255,255,255,.12);padding-top:19px;
            display:flex;justify-content:space-between;gap:20px;color:#9e8cab;font-size:11px;
        }
        :focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
        @media (max-width:1024px){
            .nav-links{gap:14px}
            .brand{min-width:205px}
            .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:28px}
            .footer-grid{gap:25px}
        }
        @media (max-width:768px){
            .container{width:min(calc(100% - 34px),var(--container))}
            .site-header{height:70px}
            .nav-links{
                display:none;position:absolute;top:70px;left:0;right:0;background:var(--cream);
                border-bottom:1px solid var(--line);padding:8px 17px 16px;
                box-shadow:var(--soft-shadow);flex-direction:column;align-items:stretch;gap:0;
            }
            .nav-links.show{display:flex}
            .nav-links a{height:47px;border-bottom:1px solid var(--line)}
            .nav-links a:last-child{border-bottom:0}
            .nav-links a.active:after{left:auto;width:28px;right:0;bottom:10px}
            .nav-cta{display:none}
            .menu-toggle{display:block}
            .brand{min-width:0}
            .brand-text{font-size:14px}
            .article-hero{padding:43px 0 49px}
            .article-hero h1{font-size:34px}
            .article-layout{display:block;padding:42px 0 55px}
            .article-card{padding:25px 20px}
            .article-side{position:static;margin-top:25px}
            .side-card{margin-bottom:12px}
            .after-article{padding-bottom:57px}
            .after-box{display:block;padding:25px 21px}
            .after-actions{margin-top:18px}
            .app-section{padding:55px 0}
            .app-grid{grid-template-columns:1fr;gap:27px}
            .app-panel{margin:0;max-width:none}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand{grid-column:1/-1}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }
        @media (max-width:520px){
            .notice{font-size:11px}
            .notice .container{width:calc(100% - 30px)}
            .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
            .brand-text small{font-size:9px}
            .article-hero h1{font-size:29px}
            .article-summary{font-size:14px}
            .article-content{font-size:15px}
            .article-content h2{font-size:23px;margin-top:32px}
            .article-content h3{font-size:19px}
            .article-meta{gap:10px}
            .app-steps{grid-template-columns:1fr;gap:16px}
            .app-step{border-top:0;border-left:3px solid var(--coral);padding:0 0 0 12px}
            .app-step b{display:inline-block;margin:0 8px 0 0;font-size:18px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
        }

/* roulang page: category1 */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:34px;background:var(--purple-deep);color:#eee6f1;font-size:12px;overflow:hidden}
        .notice .container{height:100%;display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-size:11px;letter-spacing:.08em}
        .site-header{height:78px;background:rgba(250,248,245,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--purple)}
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--coral);border-radius:3px}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 7px 15px rgba(244,119,98,.20)}
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px}
        .hero{background:var(--purple-deep);color:#fff;position:relative;overflow:hidden;padding:76px 0 70px}
        .hero:before{content:"";position:absolute;width:470px;height:470px;border-radius:50%;background:var(--plum);right:-180px;top:-240px;opacity:.55}
        .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:17px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.14;letter-spacing:-.035em;margin:0 0 20px;font-weight:900}
        .hero-copy{color:#d9cfe3;font-size:17px;max-width:600px;margin:0 0 28px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;padding:11px 19px;border-radius:10px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
        .btn-outline:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:27px}
        .hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:50px;color:#ded4e6}
        .hero-panel{border-left:1px solid rgba(255,255,255,.25);padding-left:32px}
        .panel-label{color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.12em}
        .panel-title{font-size:29px;font-weight:900;line-height:1.3;margin:12px 0 22px}
        .panel-line{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.15);color:#e7dbea;font-size:14px}
        .panel-line strong{color:#fff}
        section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
        .section-kicker{font-size:12px;color:var(--plum);font-weight:900;letter-spacing:.12em}
        h2{font-size:clamp(28px,3vw,40px);line-height:1.2;margin:7px 0 0;letter-spacing:-.035em}
        .section-head p{margin:0;color:var(--muted);max-width:440px;font-size:14px}
        .news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .spotlight{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--soft-shadow)}
        .spotlight-image{height:220px;background:var(--lavender);display:flex;align-items:flex-end;padding:24px;position:relative}
        .spotlight-image:after{content:"C7 GAME";position:absolute;right:20px;top:24px;color:rgba(84,46,112,.14);font-size:42px;font-weight:900;letter-spacing:.08em}
        .image-caption{position:relative;z-index:1;color:var(--plum);font-size:13px;font-weight:800}
        .spotlight-body{padding:25px 28px 28px}
        .badge{display:inline-block;background:#fff0ed;color:#d95c4a;border-radius:50px;padding:5px 10px;font-size:11px;font-weight:900}
        .spotlight h3{font-size:25px;line-height:1.35;margin:15px 0 9px}
        .spotlight p{color:var(--muted);font-size:14px;margin:0 0 17px}
        .text-link{color:var(--plum);font-size:13px;font-weight:900}
        .text-link:hover{text-decoration:underline}
        .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 24px}
        .news-item{padding:19px 0;border-bottom:1px solid var(--line)}
        .news-item:last-child{border-bottom:0}
        .news-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}
        .news-item h3{font-size:16px;line-height:1.45;margin:6px 0}
        .news-item p{font-size:13px;color:var(--muted);margin:0}
        .topics{background:#fff}
        .topic-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
        .topic-main{grid-column:span 7;background:var(--purple);color:#fff;border-radius:var(--radius);padding:32px;min-height:270px}
        .topic-side{grid-column:span 5;display:grid;gap:16px}
        .topic-small{background:var(--lavender);border-radius:16px;padding:24px;display:flex;justify-content:space-between;gap:20px;align-items:center}
        .topic-small h3,.topic-main h3{margin:8px 0;font-size:21px;line-height:1.35}
        .topic-main p{color:#e5dbea;max-width:490px}
        .topic-small p{font-size:13px;color:var(--muted);margin:0}
        .topic-icon{font-size:25px;color:var(--coral);font-weight:900}
        .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px}
        .filter-list{display:flex;gap:9px;flex-wrap:wrap}
        .filter-list a{border:1px solid var(--line);border-radius:50px;padding:7px 14px;font-size:12px;font-weight:800;background:#fff}
        .filter-list a:hover,.filter-list a.selected{background:var(--plum);border-color:var(--plum);color:#fff}
        .update-note{font-size:13px;color:var(--muted);white-space:nowrap}
        .timeline{border-top:2px solid var(--purple);background:#fff;border-bottom:1px solid var(--line)}
        .timeline-item{display:grid;grid-template-columns:130px 1fr auto;gap:24px;align-items:center;padding:22px 24px;border-bottom:1px solid var(--line)}
        .timeline-item:last-child{border-bottom:0}
        .timeline-date{font-size:13px;color:var(--plum);font-weight:900}
        .timeline-item h3{font-size:16px;margin:0 0 4px}
        .timeline-item p{font-size:13px;color:var(--muted);margin:0}
        .faq-section{background:var(--lavender)}
        .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}
        .faq-intro p{color:var(--muted);font-size:15px}
        .faq-list{display:grid;gap:10px}
        .faq-list details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:18px 21px}
        .faq-list summary{cursor:pointer;font-size:15px;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:15px}
        .faq-list summary:after{content:"+";color:var(--coral);font-size:22px;line-height:1}
        .faq-list details[open] summary:after{content:"−"}
        .faq-list details p{color:var(--muted);font-size:14px;margin:13px 26px 0 0}
        .app-section{background:var(--plum);color:#fff}
        .app-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
        .app-section h2{font-size:40px;margin:10px 0 15px}
        .app-section p{color:#e7dbea;max-width:520px}
        .download-details{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}
        .download-details span{border:1px solid rgba(255,255,255,.22);padding:8px 12px;border-radius:9px;font-size:12px;color:#f0e8f3}
        .app-visual{background:#fff;border-radius:18px;padding:27px;color:var(--ink);box-shadow:var(--shadow)}
        .app-visual h3{font-size:20px;margin:0 0 17px}
        .app-row{height:10px;border-radius:8px;background:var(--lavender);margin:12px 0}
        .app-row.short{width:64%}
        .app-status{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:23px;padding-top:17px;color:var(--muted);font-size:12px}
        footer{background:var(--purple-deep);color:#fff;padding:55px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;gap:35px}
        .footer-brand .brand{min-width:0;margin-bottom:16px}
        .footer-brand p{color:#bfb1c8;font-size:13px;max-width:320px;margin:0}
        .footer-title{font-size:13px;font-weight:900;margin-bottom:15px;color:#fff}
        .footer-links{display:grid;gap:9px}
        .footer-links a{color:#bfb1c8;font-size:13px}
        .footer-links a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:42px;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#9d8eaa;font-size:12px}
        :focus-visible{outline:3px solid rgba(97,214,200,.8);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:15px}
            .brand{min-width:200px}
            .hero-grid,.news-layout,.faq-grid{gap:35px}
            .app-grid{gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .site-header{height:70px}
            .nav-links{display:none;position:absolute;top:70px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .nav-links.open{display:flex}
            .nav-links a{height:48px;padding:0 14px}
            .nav-links a.active:after{left:14px;right:auto;width:28px;bottom:5px}
            .nav-cta{display:none}
            .menu-toggle{display:block}
            .hero{padding:60px 0 55px}
            .hero-grid,.news-layout,.faq-grid,.app-grid{grid-template-columns:1fr}
            .hero-panel{border-left:0;border-top:1px solid rgba(255,255,255,.24);padding:25px 0 0}
            section{padding:65px 0}
            .section-head{display:block}
            .section-head p{margin-top:15px}
            .topic-main,.topic-side{grid-column:span 12}
            .filter-bar{display:block}
            .update-note{display:block;margin-top:13px}
            .timeline-item{grid-template-columns:1fr;gap:5px;padding:20px 16px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }
        @media(max-width:520px){
            h1{font-size:38px}
            .hero-copy{font-size:15px}
            .hero-actions a{width:100%}
            .hero-actions .btn-outline,.hero-actions .btn-primary{min-height:48px}
            .spotlight-body{padding:22px}
            .topic-main{padding:25px;min-height:0}
            .app-section h2{font-size:32px}
            .app-visual{padding:21px}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category3 */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:34px;background:var(--purple-deep);color:#ddd1e6;font-size:12px;overflow:hidden}
        .notice .container{height:34px;display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-weight:800}
        .site-header{height:78px;background:rgba(250,248,245,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--purple)}
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--coral);border-radius:3px}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 7px 15px rgba(244,119,98,.2)}
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px}
        .hero{background:var(--purple-deep);color:#fff;position:relative;overflow:hidden;padding:76px 0 70px}
        .hero:before{content:"";position:absolute;width:540px;height:540px;border:1px solid rgba(97,214,200,.25);border-radius:50%;right:-180px;top:-290px}
        .hero:after{content:"";position:absolute;width:260px;height:260px;background:var(--plum);opacity:.42;border-radius:50%;left:-100px;bottom:-180px}
        .hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
        h1{font-size:clamp(36px,5vw,64px);line-height:1.14;letter-spacing:-.05em;margin:0 0 20px;font-weight:900}
        .hero-copy{color:#d9cfe3;font-size:17px;max-width:570px;margin:0 0 29px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;padding:11px 19px;border-radius:10px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
        .btn-outline:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:29px}
        .hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:50px;color:#ded4e6}
        .guide-board{background:#faf8f5;color:var(--ink);border-radius:24px;padding:25px;box-shadow:var(--shadow);transform:rotate(1deg)}
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:17px}
        .board-top strong{font-size:19px}
        .board-top span{color:var(--coral);font-size:12px;font-weight:800}
        .guide-line{display:grid;grid-template-columns:42px 1fr auto;gap:13px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
        .guide-line:last-child{border-bottom:0}
        .guide-no{width:32px;height:32px;border-radius:10px;background:var(--lavender);color:var(--plum);display:grid;place-items:center;font-size:13px;font-weight:900}
        .guide-line h3{font-size:15px;margin:0 0 2px}
        .guide-line p{font-size:12px;color:var(--muted);margin:0}
        .guide-line b{font-size:11px;color:var(--plum);background:#f2e8f5;padding:4px 8px;border-radius:20px}
        section{padding:88px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-kicker{font-size:12px;color:var(--plum);font-weight:900;letter-spacing:.12em;text-transform:uppercase}
        .section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.2;margin:7px 0 0;letter-spacing:-.035em}
        .section-head p{margin:0;color:var(--muted);max-width:430px;font-size:14px}
        .guide-index{background:#fff}
        .index-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:52px;align-items:start}
        .index-intro{background:var(--lavender);border-radius:var(--radius);padding:30px}
        .index-intro h3{font-size:25px;line-height:1.3;margin:0 0 13px}
        .index-intro p{color:var(--muted);font-size:14px;margin:0 0 23px}
        .index-links{display:grid;gap:10px}
        .index-links a{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 14px;font-size:14px;font-weight:800}
        .index-links a:hover{border-color:var(--coral);transform:translateX(3px)}
        .index-links span{color:var(--coral);font-size:18px}
        .topic-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}
        .topic-card{border:1px solid var(--line);border-radius:16px;padding:23px;background:var(--cream);transition:.25s ease}
        .topic-card:hover{transform:translateY(-4px);border-color:var(--coral);box-shadow:var(--soft-shadow)}
        .topic-card .topic-icon{font-size:25px;margin-bottom:12px}
        .topic-card h3{font-size:18px;margin:0 0 7px}
        .topic-card p{font-size:13px;color:var(--muted);margin:0}
        .feature-section{background:var(--cream)}
        .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
        .feature-main{background:var(--purple);border-radius:var(--radius);color:#fff;padding:38px;min-height:310px;position:relative;overflow:hidden}
        .feature-main:after{content:"C7";position:absolute;right:-16px;bottom:-62px;font-size:190px;font-weight:900;color:rgba(255,255,255,.06)}
        .badge{display:inline-block;background:#fff0ed;color:#d95c4a;border-radius:50px;padding:5px 10px;font-size:11px;font-weight:900}
        .dark-badge{background:rgba(97,214,200,.16);color:var(--cyan)}
        .feature-main h3{font-size:29px;line-height:1.3;max-width:470px;margin:17px 0 12px;position:relative;z-index:1}
        .feature-main p{color:#e2d8e8;max-width:450px;font-size:14px;position:relative;z-index:1}
        .feature-main a{display:inline-flex;margin-top:13px;color:var(--cyan);font-weight:800;position:relative;z-index:1}
        .side-guides{display:grid;gap:18px}
        .side-guide{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;display:flex;justify-content:space-between;gap:20px;align-items:start}
        .side-guide h3{font-size:18px;line-height:1.35;margin:10px 0 5px}
        .side-guide p{font-size:13px;color:var(--muted);margin:0}
        .side-guide .arrow{font-size:25px;color:var(--coral)}
        .tips{background:var(--lavender)}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
        .step{background:#fff;border-radius:16px;padding:24px;border:1px solid rgba(84,46,112,.1);position:relative}
        .step-number{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.1em}
        .step h3{font-size:18px;margin:13px 0 7px}
        .step p{font-size:13px;color:var(--muted);margin:0}
        .tip-box{margin-top:20px;background:var(--purple-deep);border-radius:16px;color:#fff;padding:20px 25px;display:flex;gap:14px;align-items:center}
        .tip-box strong{color:var(--cyan);white-space:nowrap}
        .tip-box p{font-size:13px;color:#ddd2e5;margin:0}
        .app-section{background:var(--plum);color:#fff;overflow:hidden}
        .app-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .app-section h2{font-size:42px;line-height:1.2;margin:10px 0 17px}
        .app-section p{color:#e7dbea;max-width:500px}
        .app-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
        .app-meta{display:flex;gap:23px;flex-wrap:wrap;margin-top:22px;color:#e9dff0;font-size:12px}
        .app-meta b{display:block;color:var(--cyan);font-size:15px}
        .app-card{background:#fff;color:var(--ink);border-radius:22px;padding:27px;max-width:410px;margin:auto;box-shadow:var(--shadow);position:relative}
        .app-card:before{content:"";position:absolute;left:27px;top:27px;width:8px;height:8px;background:var(--coral);border-radius:50%;box-shadow:15px 0 var(--cyan),30px 0 var(--purple)}
        .app-card h3{margin:25px 0 14px;font-size:22px}
        .phone-screen{height:150px;border-radius:14px;background:var(--lavender);padding:20px;margin-bottom:14px}
        .phone-screen i{display:block;height:11px;background:var(--plum);border-radius:5px;margin:10px 0;width:78%}
        .phone-screen i:nth-child(2){width:52%;background:var(--coral)}
        .phone-screen i:nth-child(3){width:90%;background:var(--cyan)}
        .faq{background:#fff}
        .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:65px}
        .faq-intro p{color:var(--muted);font-size:14px}
        .faq-intro a{display:inline-flex;margin-top:14px;color:var(--plum);font-weight:800}
        .faq-list{display:grid;gap:11px}
        details{border:1px solid var(--line);border-radius:13px;padding:0 20px;background:var(--cream)}
        summary{list-style:none;cursor:pointer;padding:18px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";color:var(--coral);font-size:21px;line-height:1}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;padding:0 4px 17px;margin:0}
        .cta{padding:65px 0;background:var(--purple-deep);color:#fff}
        .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{font-size:32px;line-height:1.25;margin:0 0 8px}
        .cta p{color:#d8cde2;margin:0;font-size:14px}
        footer{background:#1d112b;color:#eee3f2;padding:56px 0 20px}
        .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
        .footer-brand p{color:#bcaec6;font-size:13px;max-width:310px;margin:18px 0 0}
        .footer-title{color:#fff;font-size:14px;font-weight:900;margin-bottom:14px}
        .footer-links{display:grid;gap:9px;color:#bcaec6;font-size:13px}
        .footer-links a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#9889a4;font-size:11px}
        :focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:14px}
            .brand{min-width:205px}
            .hero-grid,.index-layout,.feature-layout,.faq-grid{gap:35px}
            .steps{grid-template-columns:1fr 1fr}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .site-header{height:70px}
            .nav-links{display:none;position:absolute;left:16px;right:16px;top:78px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .nav-links.open{display:flex}
            .nav-links a{height:auto;padding:13px 14px;border-radius:9px}
            .nav-links a.active:after{display:none}
            .nav-links a.active{background:var(--lavender)}
            .nav-cta{display:none}
            .menu-toggle{display:block}
            .hero{padding:60px 0}
            .hero-grid,.index-layout,.feature-layout,.app-grid,.faq-grid{grid-template-columns:1fr}
            .hero-grid{gap:40px}
            .guide-board{transform:none}
            section{padding:66px 0}
            .section-head{display:block}
            .section-head p{margin-top:13px}
            .app-section h2{font-size:34px}
            .app-card{max-width:none}
            .cta-box{display:block}
            .cta .btn-primary{margin-top:23px}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:520px){
            h1{font-size:38px}
            .hero-copy{font-size:15px}
            .topic-list,.steps{grid-template-columns:1fr}
            .feature-main{padding:27px}
            .feature-main h3{font-size:25px}
            .side-guide{padding:20px}
            .tip-box{display:block}
            .tip-box strong{display:block;margin-bottom:5px}
            .app-meta{gap:15px}
            .footer-grid{grid-template-columns:1fr}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }

/* roulang page: category2 */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:35px;background:var(--purple-deep);color:#e9dff0;font-size:12px;overflow:hidden}
        .notice .container{height:100%;display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-weight:800}
        .site-header{height:78px;background:rgba(250,248,245,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:white;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--purple)}
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--coral);border-radius:3px}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 7px 15px rgba(244,119,98,.20)}
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px}
        .hero{background:var(--purple-deep);color:#fff;position:relative;overflow:hidden;padding:78px 0 72px}
        .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .hero:before{width:500px;height:500px;background:var(--plum);right:-180px;top:-260px;opacity:.58}
        .hero:after{width:270px;height:270px;border:1px solid rgba(97,214,200,.35);right:16%;bottom:-165px}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
        h1{font-size:clamp(38px,5vw,64px);line-height:1.12;letter-spacing:-.045em;margin:0 0 22px;font-weight:900}
        .hero-copy{color:#d9cfe3;font-size:17px;max-width:610px;margin:0 0 30px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;padding:11px 19px;border-radius:10px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
        .btn-outline:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
        .hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:50px;color:#ded4e6}
        .download-panel{background:#f6f0f8;border-radius:24px;padding:27px;color:var(--ink);box-shadow:var(--shadow);transform:rotate(1deg)}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e1d7e8;padding-bottom:18px;margin-bottom:20px}
        .app-icon{width:54px;height:54px;background:var(--coral);color:#fff;border-radius:17px;display:grid;place-items:center;font-weight:900;font-size:22px;box-shadow:4px 4px 0 var(--purple)}
        .panel-name{font-size:18px;font-weight:900;line-height:1.25}
        .panel-name small{display:block;color:var(--muted);font-size:11px;font-weight:700;margin-top:3px}
        .status{font-size:11px;color:#318d82;background:#dcf5f0;padding:5px 9px;border-radius:30px;font-weight:800}
        .device-tabs{display:flex;gap:8px;margin-bottom:18px}
        .device-tabs span{font-size:12px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 12px;color:var(--muted)}
        .device-tabs span:first-child{color:var(--plum);border-color:var(--coral);font-weight:800}
        .panel-line{height:10px;background:#dfd4e5;border-radius:8px;margin:12px 0}
        .panel-line.short{width:62%}
        .panel-info{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0}
        .info-box{background:#fff;border-radius:12px;padding:13px}
        .info-box b{display:block;font-size:14px}
        .info-box span{font-size:11px;color:var(--muted)}
        .panel-button{display:block;text-align:center;background:var(--coral);color:#fff;border-radius:10px;padding:12px;font-size:14px;font-weight:800}
        .crumbs{padding:20px 0 0;color:var(--muted);font-size:13px}
        .crumbs span{margin:0 8px;color:#b9adbf}
        section{padding:86px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-kicker{font-size:12px;color:var(--plum);font-weight:900;letter-spacing:.12em}
        .section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.2;margin:7px 0 0;letter-spacing:-.035em}
        .section-head p{margin:0;color:var(--muted);max-width:460px;font-size:14px}
        .intro-section{padding-top:48px}
        .intro-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:70px;align-items:start}
        .intro-lead{font-size:23px;font-weight:800;line-height:1.45;margin:0}
        .intro-copy{color:var(--muted);margin:0}
        .feature-section{background:#fff}
        .benefit-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
        .benefit-main{background:var(--lavender);border-radius:var(--radius);padding:35px;min-height:285px;position:relative;overflow:hidden}
        .benefit-main:after{content:"C7";position:absolute;right:-10px;bottom:-55px;color:rgba(84,46,112,.08);font-size:180px;font-weight:900}
        .benefit-main h3{font-size:29px;line-height:1.25;margin:16px 0 10px;max-width:390px}
        .benefit-main p{color:var(--muted);max-width:430px;margin:0}
        .mini-benefits{display:grid;gap:18px}
        .mini-card{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:#fff}
        .mini-card h3{font-size:18px;margin:9px 0 5px}
        .mini-card p{font-size:13px;color:var(--muted);margin:0}
        .number{color:var(--coral);font-weight:900;font-size:13px;letter-spacing:.08em}
        .app-section{background:var(--plum);color:#fff;overflow:hidden}
        .app-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .app-section h2{font-size:42px;line-height:1.2;margin:10px 0 17px}
        .app-section p{color:#e7dbea;max-width:510px}
        .download-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 25px;margin:25px 0;color:#f6eef8;font-size:13px}
        .download-list div:before{content:"✓";color:var(--cyan);font-weight:900;margin-right:8px}
        .device-card{background:#2f1944;border:1px solid rgba(255,255,255,.12);border-radius:25px;padding:26px;max-width:410px;margin:auto}
        .device-screen{height:245px;background:linear-gradient(145deg,#f6e7ef,#d5f3ee);border-radius:18px;padding:22px;color:var(--purple);position:relative;overflow:hidden}
        .device-screen:after{content:"C7 GAME";position:absolute;right:-6px;bottom:15px;font-size:54px;font-weight:900;color:rgba(84,46,112,.1);transform:rotate(-12deg)}
        .screen-tag{font-size:11px;color:#d95c4a;font-weight:900}
        .screen-title{font-size:25px;font-weight:900;line-height:1.2;margin-top:14px;max-width:210px}
        .screen-bars{position:absolute;left:22px;right:22px;bottom:22px;display:flex;gap:8px}
        .screen-bars i{height:8px;flex:1;background:var(--coral);border-radius:5px}
        .screen-bars i:nth-child(2){background:var(--cyan);flex:1.5}
        .device-caption{display:flex;justify-content:space-between;color:#d9cde2;font-size:12px;margin-top:17px}
        .steps-section{background:var(--cream)}
        .steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative}
        .step-no{width:38px;height:38px;border-radius:50%;background:var(--purple);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:22px}
        .step-card h3{font-size:19px;margin:0 0 8px}
        .step-card p{font-size:14px;color:var(--muted);margin:0}
        .step-card:after{content:"";position:absolute;top:46px;right:-18px;width:35px;height:1px;background:var(--coral)}
        .step-card:last-child:after{display:none}
        .device-section{background:#fff}
        .device-layout{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
        .device-table{border-top:1px solid var(--line)}
        .device-row{display:grid;grid-template-columns:1fr 1.3fr;gap:20px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}
        .device-row strong{color:var(--plum)}
        .device-row span{color:var(--muted)}
        .support-note{background:var(--lavender);border-left:4px solid var(--coral);border-radius:0 14px 14px 0;padding:24px}
        .support-note h3{margin:0 0 8px;font-size:20px}
        .support-note p{margin:0;color:var(--muted);font-size:14px}
        .faq-section{background:var(--lavender)}
        .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
        .faq-intro p{color:var(--muted);font-size:14px}
        .faq-list{display:grid;gap:10px}
        .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
        .faq-question{width:100%;border:0;background:#fff;color:var(--ink);padding:19px 22px;text-align:left;font-weight:800;display:flex;justify-content:space-between;align-items:center}
        .faq-question span{color:var(--coral);font-size:21px;transition:.25s}
        .faq-answer{display:none;padding:0 22px 19px;color:var(--muted);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span{transform:rotate(45deg)}
        .cta-section{padding:58px 0;background:var(--purple-deep);color:#fff}
        .cta-wrap{display:flex;justify-content:space-between;align-items:center;gap:35px}
        .cta-wrap h2{font-size:32px;line-height:1.25;margin:0 0 8px}
        .cta-wrap p{margin:0;color:#d9cfe3;font-size:14px}
        footer{background:#1c1029;color:#fff;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
        .footer-brand .brand{margin-bottom:17px}
        .footer-brand p{font-size:13px;color:#b9abc5;max-width:300px;margin:0}
        .footer-title{font-size:13px;color:var(--cyan);font-weight:900;margin-bottom:15px}
        .footer-links{display:grid;gap:9px;font-size:13px;color:#c7b9d0}
        .footer-links a:hover{color:var(--coral)}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#9d8da9;font-size:12px}
        :focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:14px}
            .brand{min-width:200px}
            .hero-grid,.app-grid{gap:40px}
            .intro-grid,.faq-grid{gap:40px}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .site-header{height:68px}
            .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);border-bottom:1px solid var(--line);padding:10px 16px;box-shadow:var(--soft-shadow);flex-direction:column;align-items:stretch;gap:0}
            .nav-links.show{display:flex}
            .nav-links a{height:auto;padding:13px 8px}
            .nav-links a.active:after{left:8px;right:auto;width:28px;bottom:5px}
            .nav-cta{display:none}
            .menu-toggle{display:block}
            .brand{min-width:auto}
            .hero{padding:62px 0 56px}
            .hero-grid,.intro-grid,.benefit-layout,.app-grid,.device-layout,.faq-grid{grid-template-columns:1fr}
            .hero-grid{gap:38px}
            .hero-visual{min-height:0}
            .download-panel{transform:none}
            section{padding:65px 0}
            .section-head{display:block}
            .section-head p{margin-top:14px}
            .steps-grid{grid-template-columns:1fr}
            .step-card:after{display:none}
            .app-section h2{font-size:34px}
            .download-list{grid-template-columns:1fr}
            .cta-wrap{display:block}
            .cta-wrap .btn-primary{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand{grid-column:1/-1}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }
        @media(max-width:520px){
            h1{font-size:39px}
            .hero-copy{font-size:15px}
            .hero-actions a{width:100%}
            .intro-lead{font-size:20px}
            .benefit-main,.mini-card,.step-card{padding:24px}
            .device-row{grid-template-columns:1fr;gap:3px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .notice{font-size:11px}
        }

/* roulang page: category4 */
:root{
            --ink:#241d35;
            --muted:#746d83;
            --purple:#3c245a;
            --purple-deep:#241435;
            --plum:#542e70;
            --coral:#f47762;
            --cyan:#61d6c8;
            --cream:#faf8f5;
            --lavender:#f0eaf5;
            --line:#e7dfeb;
            --white:#fff;
            --shadow:0 18px 45px rgba(43,25,58,.10);
            --soft-shadow:0 8px 24px rgba(43,25,58,.07);
            --radius:20px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--coral)}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .notice{height:34px;background:var(--purple-deep);color:#e9dff0;font-size:12px;overflow:hidden}
        .notice .container{height:100%;display:flex;align-items:center;gap:12px;white-space:nowrap}
        .notice strong{color:var(--cyan);font-weight:800}
        .site-header{height:78px;background:rgba(250,248,245,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;min-width:230px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:17px;box-shadow:4px 4px 0 var(--purple)}
        .brand-text{font-size:16px;font-weight:800;letter-spacing:.01em}
        .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:700;line-height:1.2}
        .nav-links{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:700}
        .nav-links a{height:78px;display:flex;align-items:center;position:relative}
        .nav-links a.active{color:var(--plum)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--coral);border-radius:3px}
        .nav-cta,.btn-primary{background:var(--coral);color:#fff;border:0;border-radius:10px;padding:12px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 7px 15px rgba(244,119,98,.2)}
        .nav-cta:hover,.btn-primary:hover{color:#fff;background:#e96350;transform:translateY(-2px)}
        .menu-toggle{display:none;border:0;background:none;color:var(--purple);font-size:24px}
        .hero{background:var(--purple-deep);color:#fff;position:relative;overflow:hidden;padding:82px 0 75px}
        .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
        .hero:before{width:510px;height:510px;background:var(--plum);right:-170px;top:-260px;opacity:.55}
        .hero:after{width:300px;height:300px;border:1px solid rgba(97,214,200,.35);right:19%;bottom:-190px}
        .hero-grid{display:grid;grid-template-columns:1fr .95fr;gap:74px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
        .eyebrow:before{content:"";width:25px;height:2px;background:var(--coral)}
        h1{font-size:clamp(38px,5vw,68px);line-height:1.13;letter-spacing:-.045em;margin:0 0 20px;max-width:650px}
        .hero-copy{color:#d9cfe3;font-size:17px;max-width:600px;margin:0 0 29px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .btn-outline{border:1px solid rgba(255,255,255,.35);color:#fff;padding:11px 19px;border-radius:10px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
        .btn-outline:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:29px}
        .hero-tags span{font-size:12px;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:50px;color:#ded4e6}
        .brand-panel{background:#f5eff8;color:var(--ink);border-radius:24px;padding:30px;box-shadow:var(--shadow);transform:rotate(1deg)}
        .panel-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ded3e4;padding-bottom:20px;margin-bottom:22px}
        .panel-symbol{width:54px;height:54px;border-radius:17px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:22px;box-shadow:5px 5px 0 var(--purple)}
        .panel-status{font-size:12px;color:var(--plum);font-weight:800;background:#fff;padding:7px 12px;border-radius:30px}
        .brand-panel h2{font-size:27px;line-height:1.3;margin:0 0 13px}
        .brand-panel p{font-size:14px;color:var(--muted);margin:0 0 25px}
        .panel-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}
        .panel-links a{background:#fff;border:1px solid #e7dcec;border-radius:12px;padding:13px;font-size:13px;font-weight:800}
        .panel-links a:hover{border-color:var(--coral);transform:translateY(-3px)}
        section{padding:90px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
        .section-kicker{font-size:12px;color:var(--plum);font-weight:900;letter-spacing:.12em;text-transform:uppercase}
        .section-head h2{font-size:clamp(28px,3vw,40px);line-height:1.2;margin:7px 0 0;letter-spacing:-.035em}
        .section-head p{margin:0;color:var(--muted);max-width:450px;font-size:14px}
        .intro-section{background:#fff}
        .intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
        .intro-lead{font-size:22px;line-height:1.55;font-weight:800;color:var(--purple)}
        .intro-copy{color:var(--muted);font-size:15px;margin:0}
        .intro-copy + .intro-copy{margin-top:18px}
        .service-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:16px}
        .service-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--cream);padding:27px;min-height:205px;transition:.25s ease}
        .service-card:hover{transform:translateY(-4px);box-shadow:var(--soft-shadow);border-color:#d2b9df}
        .service-card.large{background:var(--purple-deep);color:#fff;min-height:300px}
        .service-number{font-size:12px;color:var(--coral);font-weight:900;letter-spacing:.08em}
        .service-card h3{font-size:22px;line-height:1.35;margin:15px 0 10px}
        .service-card p{font-size:14px;color:var(--muted);margin:0}
        .service-card.large p{color:#dacfe4;max-width:400px}
        .service-card a{display:inline-flex;margin-top:21px;color:var(--plum);font-weight:800;font-size:13px}
        .service-card.large a{color:var(--cyan)}
        .facts{background:var(--lavender)}
        .fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .fact{background:#fff;border-radius:16px;padding:24px;border:1px solid #e7dcec}
        .fact strong{font-size:30px;color:var(--purple);display:block;line-height:1.2}
        .fact span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
        .split-section{background:#fff}
        .split-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .timeline{display:grid;gap:22px}
        .timeline-item{display:grid;grid-template-columns:42px 1fr;gap:16px}
        .timeline-mark{width:34px;height:34px;border-radius:50%;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:900;font-size:13px}
        .timeline-item h3{font-size:17px;margin:0 0 4px}
        .timeline-item p{font-size:14px;color:var(--muted);margin:0}
        .contact-card{background:var(--purple-deep);color:#fff;border-radius:var(--radius);padding:34px;position:relative;overflow:hidden}
        .contact-card:after{content:"C7";position:absolute;right:-17px;bottom:-57px;font-size:190px;font-weight:900;color:rgba(255,255,255,.05)}
        .contact-card h3{font-size:27px;line-height:1.3;margin:0 0 12px;position:relative;z-index:1}
        .contact-card p{color:#d8cce1;font-size:14px;max-width:400px;position:relative;z-index:1}
        .contact-list{display:grid;gap:11px;margin-top:24px;position:relative;z-index:1}
        .contact-list a{display:flex;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.15);padding:10px 0;font-size:14px}
        .faq{background:var(--cream)}
        .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
        .faq-intro p{color:var(--muted);font-size:15px}
        .faq-list{display:grid;gap:11px}
        details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
        details[open]{border-color:#d2b4df;box-shadow:var(--soft-shadow)}
        summary{cursor:pointer;font-weight:800;list-style:none;padding-right:25px;position:relative}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";position:absolute;right:0;color:var(--coral);font-size:22px;top:-5px}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;margin:13px 0 0;padding-top:12px;border-top:1px solid var(--line)}
        .download-cta{background:var(--plum);color:#fff;padding:66px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-inner h2{font-size:34px;line-height:1.25;margin:0 0 8px}
        .cta-inner p{color:#e8dceb;margin:0;font-size:14px}
        .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
        footer{background:var(--purple-deep);color:#fff;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr .8fr;gap:45px}
        .footer-brand .brand{min-width:0;margin-bottom:18px}
        .footer-brand .brand-text{color:#fff}
        .footer-brand .brand-text small{color:#c4b5cf}
        .footer-brand p{color:#c8bbd1;font-size:13px;max-width:320px;margin:0}
        .footer-title{font-weight:800;font-size:14px;margin-bottom:15px}
        .footer-links{display:grid;gap:9px}
        .footer-links a{color:#c8bbd1;font-size:13px}
        .footer-links a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#a99ab4;font-size:12px}
        :focus-visible{outline:3px solid rgba(97,214,200,.8);outline-offset:3px}
        @media(max-width:1024px){
            .nav-links{gap:15px}
            .nav-cta{padding:10px 13px}
            .hero-grid,.split-grid{gap:40px}
            .service-grid{grid-template-columns:1fr 1fr}
            .service-card.large{grid-column:span 2}
            .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
            .footer-grid>div:last-child{display:none}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .site-header{height:68px}
            .brand{min-width:0}
            .brand-text{font-size:14px}
            .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .nav-links.open{display:flex}
            .nav-links a{height:48px;padding:0 14px}
            .nav-links a.active:after{left:10px;right:auto;width:3px;height:25px;top:11px;bottom:auto}
            .nav-cta{display:none}
            .menu-toggle{display:block}
            .hero{padding:60px 0}
            .hero-grid,.intro-grid,.split-grid,.faq-grid{grid-template-columns:1fr}
            .hero-visual{min-height:0}
            .brand-panel{transform:none}
            section{padding:66px 0}
            .section-head{display:block}
            .section-head p{margin-top:15px}
            .fact-grid{grid-template-columns:1fr 1fr}
            .cta-inner{display:block}
            .cta-actions{margin-top:25px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-brand{grid-column:span 2}
        }
        @media(max-width:520px){
            .notice{font-size:11px}
            h1{font-size:40px}
            .hero-copy{font-size:15px}
            .hero-actions a{width:100%}
            .panel-links{grid-template-columns:1fr}
            .service-grid{grid-template-columns:1fr}
            .service-card.large{grid-column:auto}
            .fact-grid{grid-template-columns:1fr 1fr}
            .fact{padding:18px}
            .fact strong{font-size:24px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }

/* 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}