/* roulang page: index */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .nav-action{background:var(--coral)!important;color:#fff!important;font-weight:700!important;padding:11px 17px!important}
        .nav-action:hover{background:#c96852!important;transform:translateY(-1px)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        .hero{padding:86px 0 72px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 58%,#e8eee9 100%);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        h1,h2,h3{margin:0;color:var(--plum);line-height:1.22;letter-spacing:-.035em}
        h1{font-size:clamp(38px,5vw,62px);max-width:700px;margin:18px 0 20px}
        h2{font-size:clamp(28px,3vw,38px)}
        h3{font-size:20px}
        .hero-copy p{max-width:650px;color:var(--muted);font-size:18px;margin:0 0 28px}
        .actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;cursor:pointer}
        .btn-primary{background:var(--mint);color:#fff}
        .btn-primary:hover{background:#407763;transform:translateY(-2px);box-shadow:0 8px 18px rgba(79,139,118,.2)}
        .btn-secondary{border-color:#cdbfb7;color:var(--plum);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
        .hero-card{background:var(--plum);color:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow);position:relative}
        .hero-card:after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-50px;bottom:-60px}
        .card-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.18);padding-bottom:20px;margin-bottom:25px}
        .card-top strong{font-size:19px}
        .status{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#c9e7d9}
        .status:before{content:"";width:8px;height:8px;border-radius:50%;background:#86c5a8;box-shadow:0 0 0 4px rgba(134,197,168,.15)}
        .path-box{border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:17px;margin:14px 0;background:rgba(255,255,255,.05)}
        .path-box span{display:block;color:#cfc4d2;font-size:12px;margin-bottom:4px}.path-box b{font-size:17px}
        .hero-card .btn{width:100%;margin-top:10px}
        .info-band{background:var(--paper);border-bottom:1px solid var(--line)}
        .info-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .info-item{padding:22px 24px;border-right:1px solid var(--line)}.info-item:last-child{border:0}
        .info-item span{display:block;font-size:13px;color:var(--muted)}.info-item b{display:block;color:var(--plum);font-size:17px;margin-top:3px}
        main{overflow:hidden}.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}.section-head p{margin:0;color:var(--muted);max-width:510px}
        .entry-panel{display:grid;grid-template-columns:1fr .8fr;gap:38px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
        .entry-panel p{color:var(--muted);max-width:620px}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0}
        .feature-list div{padding:15px;background:var(--mint-soft);border-radius:10px;color:var(--plum);font-weight:700}.feature-list small{display:block;color:var(--muted);font-weight:400}
        .entry-side{background:#f0ebe4;border-radius:14px;padding:26px}.entry-side .label{color:var(--mint);font-size:13px;font-weight:800}.entry-side h3{margin:8px 0 18px}.entry-side .btn{width:100%;margin-top:8px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
        .step{padding:26px 24px 10px;border-right:1px solid var(--line);position:relative}.step:last-child{border:0}.step-num{font-size:38px;color:var(--coral);font-weight:800;line-height:1}.step h3{margin:14px 0 7px}.step p{color:var(--muted);font-size:14px;margin:0}
        .mobile-section{background:#eee8e1}.mobile-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px;align-items:center}.device{width:230px;height:420px;border:9px solid var(--plum);border-radius:34px;background:var(--paper);margin:auto;padding:35px 18px 18px;box-shadow:var(--shadow);position:relative}.device:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:55px;height:5px;border-radius:5px;background:var(--plum)}.device-head{height:60px;border-radius:9px;background:var(--mint-soft);margin-bottom:15px}.device-line{height:12px;background:#e8ddd5;border-radius:5px;margin:12px 0}.device-line.short{width:62%}.mobile-copy ul{padding:0;margin:22px 0;list-style:none}.mobile-copy li{padding:13px 0;border-bottom:1px solid var(--line)}.mobile-copy li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
        .download-panel{background:var(--plum);color:#fff;border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1fr 1fr;gap:40px}.download-panel h2,.download-panel h3{color:#fff}.download-panel p{color:#d8cfdb}.download-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.download-meta div{padding:15px;border:1px solid rgba(255,255,255,.16);border-radius:10px}.download-meta span{font-size:12px;color:#bcaebe;display:block}.download-meta b{font-size:15px}.download-note{border-left:3px solid var(--coral);padding-left:15px;font-size:14px}
        .news-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.news-item{display:grid;grid-template-columns:92px 1fr;gap:18px;padding:22px 24px;border-bottom:1px solid var(--line);transition:.2s}.news-item:last-child{border:0}.news-item:hover{background:#fbf7f0}.news-date{color:var(--mint);font-weight:800;font-size:13px}.news-item h3{font-size:18px;margin-bottom:5px}.news-item p{color:var(--muted);font-size:14px;margin:0}.tag{display:inline-block;padding:3px 9px;background:var(--mint-soft);color:var(--mint);border-radius:20px;font-size:12px;margin-bottom:7px}.empty{padding:35px 25px;color:var(--muted)}
        .timeline{border-left:2px solid #cdded6;padding-left:28px}.timeline-item{position:relative;margin-bottom:28px}.timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--coral);left:-34px;top:8px}.timeline-item span{color:var(--mint);font-size:13px;font-weight:700}.timeline-item h3{margin:4px 0;font-size:18px}.timeline-item p{margin:0;color:var(--muted);font-size:14px}
        .security{background:var(--plum);color:#fff}.security h2{color:#fff}.security p{color:#d8cfdb}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}.security-card{border:1px solid rgba(255,255,255,.16);padding:22px;border-radius:12px}.security-card h3{color:#fff;font-size:17px}.security-card p{font-size:14px;margin:6px 0 0}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide{background:var(--paper);padding:25px;border-radius:13px;border:1px solid var(--line)}.guide b{display:block;color:var(--coral);font-size:28px}.guide h3{margin:7px 0}.guide p{color:var(--muted);font-size:14px;margin:0}
        .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.matrix a{padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:12px;transition:.2s}.matrix a:hover{transform:translateY(-3px);border-color:var(--mint);box-shadow:var(--shadow)}.matrix strong{display:block;color:var(--plum);font-size:16px}.matrix span{font-size:13px;color:var(--muted)}
        .faq{max-width:900px}.faq details{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 20px}.faq details:first-child{border-radius:12px 12px 0 0}.faq details:last-child{border-radius:0 0 12px 12px}.faq summary{cursor:pointer;font-weight:700;color:var(--plum)}.faq p{color:var(--muted);margin:12px 0 0;font-size:14px}
        .notice{background:#eee6df;border:1px solid #e0d4ca;border-radius:12px;padding:22px;color:var(--muted);font-size:14px}.notice strong{color:var(--plum)}
        .closing{padding:48px 0;background:var(--coral);color:#fff}.closing-wrap{display:flex;justify-content:space-between;align-items:center;gap:25px}.closing h2{color:#fff;font-size:30px}.closing p{margin:8px 0 0;color:#ffebe5}.closing .btn-secondary{border-color:#fff;color:#fff}
        footer{background:var(--plum);color:#fff;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.16)}footer h3{color:#fff;font-size:17px;margin-bottom:14px}footer p,footer a{color:#cfc4d2;font-size:14px}footer a{display:block;margin:7px 0;transition:.2s}footer a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#a99bac;font-size:12px}
        :focus-visible{outline:3px solid rgba(215,121,97,.55);outline-offset:3px}
        @media(max-width:1024px){.nav-wrap{gap:12px}.brand{min-width:220px}.nav a{padding:8px 8px}.hero-grid{gap:35px}.matrix{grid-template-columns:repeat(3,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 32px,620px)}.nav-wrap{height:70px}.menu-toggle{display:block;margin-left:auto}.nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--ivory);padding:12px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px}.nav-action{display:none!important}.brand{min-width:0}.brand-text{font-size:14px}.hero{padding:58px 0}.hero-grid,.entry-panel,.mobile-grid,.download-panel,.news-layout{grid-template-columns:1fr}.hero-card{margin-top:5px}.info-grid{grid-template-columns:repeat(2,1fr)}.info-item:nth-child(2){border-right:0}.info-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:12px}.steps{grid-template-columns:repeat(2,1fr);border-top:0}.step{border-bottom:1px solid var(--line)}.step:nth-child(2){border-right:0}.mobile-grid{gap:35px}.download-panel{padding:28px;gap:25px}.matrix{grid-template-columns:repeat(2,1fr)}.guide-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.closing-wrap{display:block}.closing .actions{margin-top:20px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
        @media(max-width:520px){h1{font-size:34px}.hero-copy p{font-size:16px}.actions .btn{width:100%}.info-item{padding:17px 12px}.entry-panel{padding:23px}.feature-list{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{border-right:0!important}.news-item{grid-template-columns:1fr;gap:5px}.matrix{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.download-meta{grid-template-columns:1fr}.closing h2{font-size:26px}}

/* roulang page: category1 */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        h1,h2,h3{color:var(--plum);line-height:1.25;margin-top:0;font-weight:800}
        h1{font-size:clamp(34px,5vw,54px);letter-spacing:-.04em;margin:16px 0}
        h2{font-size:clamp(27px,3vw,36px)}
        h3{font-size:20px}
        p{margin:0;color:var(--muted)}
        .hero{padding:76px 0 62px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 58%,#e8eee9 100%)}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
        .hero-copy p{max-width:700px;font-size:18px}
        .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}
        .pill,.tag{display:inline-flex;align-items:center;padding:5px 11px;border-radius:30px;background:var(--mint-soft);color:var(--mint);font-size:13px;font-weight:700}
        .status-card{background:var(--plum);border-radius:22px;padding:28px;color:#fff;box-shadow:var(--shadow)}
        .status-card h2{color:#fff;font-size:23px;margin-bottom:22px}
        .status-row{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px}
        .status-row:last-child{border:0}
        .status-row span{color:#c9bacb}
        .status-row strong{font-weight:700}
        .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#9ed0b9;margin-right:7px}
        .section{padding:78px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head p{max-width:570px}
        .info-grid{display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .info-item{padding:23px;border-right:1px solid var(--line)}
        .info-item:last-child{border:0}
        .info-item span{display:block;color:var(--muted);font-size:13px}
        .info-item b{display:block;color:var(--plum);font-size:18px;margin-top:5px}
        .content-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start}
        .news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .news-item{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:23px 25px;border-bottom:1px solid var(--line);transition:.2s}
        .news-item:last-child{border:0}
        .news-item:hover{background:#fbf7f0}
        .news-date{color:var(--mint);font-size:13px;font-weight:700;padding-top:3px}
        .news-item h3{font-size:19px;margin:0 0 6px}
        .news-item p{font-size:14px}
        .news-meta{display:flex;gap:9px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
        .empty-state{padding:35px 25px;color:var(--muted);text-align:center}
        .side-card{padding:28px;background:var(--mint-soft);border-radius:var(--radius);border:1px solid #d3e3db}
        .side-card h3{font-size:21px}
        .side-card ul{list-style:none;padding:0;margin:18px 0 0}
        .side-card li{padding:12px 0;border-bottom:1px solid rgba(79,139,118,.2);color:var(--ink)}
        .side-card li:last-child{border:0}
        .side-card li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:10px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
        .step{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:23px}
        .step-number{font-size:30px;color:var(--coral);font-weight:800;line-height:1;margin-bottom:18px}
        .step h3{font-size:18px;margin-bottom:8px}
        .step p{font-size:14px}
        .soft-section{background:#eee8e1}
        .mobile-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px;align-items:center}
        .device-card{min-height:300px;background:var(--plum);border-radius:28px;padding:22px;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
        .device-screen{width:190px;height:300px;border:7px solid #6e5b74;border-radius:25px;background:#f4eee5;color:var(--plum);padding:22px 15px}
        .device-screen strong{display:block;font-size:17px;margin:16px 0 20px}
        .screen-line{height:9px;border-radius:6px;background:#d4e5dc;margin:11px 0}
        .screen-line.short{width:62%}
        .notice-list{list-style:none;padding:0;margin:22px 0}
        .notice-list li{padding:14px 0;border-bottom:1px solid var(--line)}
        .notice-list li:before{content:"•";color:var(--coral);font-size:25px;vertical-align:-2px;margin-right:10px}
        .timeline{border-left:2px solid #cfc1c9;margin:10px 0 0 14px;padding-left:28px}
        .timeline-item{position:relative;margin-bottom:25px}
        .timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--coral);left:-34px;top:9px}
        .timeline-item span{color:var(--mint);font-size:13px;font-weight:700}
        .timeline-item h3{margin:4px 0;font-size:18px}
        .timeline-item p{font-size:14px}
        .dark-panel{background:var(--plum);padding:48px;border-radius:22px;color:#fff}
        .dark-panel h2,.dark-panel h3{color:#fff}
        .dark-panel p{color:#d5cbd6}
        .safety-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:25px}
        .safety-card{border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:21px}
        .safety-card h3{font-size:17px}
        .faq{max-width:900px}
        .faq details{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 20px}
        .faq details:first-child{border-radius:14px 14px 0 0}
        .faq details:last-child{border-radius:0 0 14px 14px}
        .faq summary{cursor:pointer;font-weight:700;color:var(--plum);list-style:none}
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"+";float:right;color:var(--mint);font-size:22px}
        .faq details[open] summary:after{content:"−"}
        .faq details p{padding:13px 25px 0 0;font-size:14px}
        .notice-bar{padding:20px 24px;border:1px solid #e2cfc7;background:#fbede8;border-radius:14px}
        .notice-bar strong{color:var(--plum);margin-right:9px}
        .back-row{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:30px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;cursor:pointer}
        .btn-primary{background:var(--mint);color:#fff}
        .btn-primary:hover{background:#407763;color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(79,139,118,.2)}
        .btn-secondary{border-color:#cdbfb7;color:var(--plum);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
        .btn:focus-visible,.nav a:focus-visible,summary:focus-visible{outline:3px solid rgba(215,121,97,.45);outline-offset:3px}
        footer{background:var(--plum);color:#fff;padding:58px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.25fr;gap:35px}
        footer h3{color:#fff;font-size:17px;margin-bottom:15px}
        footer p,footer a{display:block;color:#c9bdca;font-size:14px}
        footer a{margin:8px 0;transition:.2s}
        footer a:hover{color:#fff;transform:translateX(3px)}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:40px;padding-top:18px;color:#aa9dad;font-size:12px}
        @media(max-width:1024px){
            .nav-wrap{gap:15px}.brand{min-width:220px}.nav a{padding:8px 8px}
            .hero-grid,.content-layout{gap:35px}.steps{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:70px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{font-size:10px}
            .brand-mark{width:34px;height:34px}.menu-toggle{display:block}
            .nav{display:none;position:absolute;left:16px;right:16px;top:78px;background:var(--paper);padding:10px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:11px 13px}
            .hero{padding:55px 0 45px}.hero-grid,.content-layout,.mobile-grid{grid-template-columns:1fr}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
            .info-grid{grid-template-columns:repeat(2,1fr)}.info-item:nth-child(2){border-right:0}.info-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .safety-grid,.footer-grid{grid-template-columns:1fr 1fr}.dark-panel{padding:30px 22px}
            .copyright{display:block}.copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            h1{font-size:34px}.hero-copy p{font-size:16px}.status-card{padding:22px}
            .info-grid,.steps,.safety-grid,.footer-grid{grid-template-columns:1fr}
            .info-item{border-right:0!important;border-bottom:1px solid var(--line)}.info-item:last-child{border-bottom:0}
            .news-item{grid-template-columns:1fr;gap:4px;padding:20px}.news-date{padding:0}
            .back-row{display:block}.back-row .btn{margin-top:15px;width:100%}
            footer{padding-top:42px}
        }

/* roulang page: article */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;height:auto;display:block}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .nav-action{background:var(--coral)!important;color:#fff!important;font-weight:700!important;padding:11px 17px!important}
        .nav-action:hover{background:#c96852!important;transform:translateY(-1px)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        .article-hero{padding:58px 0 48px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 60%,#e8eee9 100%);border-bottom:1px solid var(--line)}
        .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px;margin-bottom:25px}
        .breadcrumb a:hover{color:var(--mint)}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        .article-hero h1{max-width:880px;margin:14px 0 20px;color:var(--plum);font-size:clamp(32px,5vw,54px);line-height:1.2;font-weight:800;letter-spacing:-.03em}
        .article-lead{max-width:790px;color:var(--muted);font-size:18px;margin:0 0 22px}
        .meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:14px}
        .tag{display:inline-block;padding:3px 10px;background:var(--mint-soft);color:var(--mint);border-radius:20px;font-size:12px;font-weight:700}
        .section{padding:76px 0}
        .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:58px;align-items:start}
        .article-content{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,55px);box-shadow:var(--shadow)}
        .article-content h2{color:var(--plum);font-size:30px;line-height:1.35;margin:34px 0 14px}
        .article-content h3{color:var(--plum-2);font-size:21px;margin:27px 0 10px}
        .article-content p{margin:0 0 20px;color:#4b454c}
        .article-content ul,.article-content ol{padding-left:24px;margin:12px 0 24px}
        .article-content li{margin:8px 0;color:#4b454c}
        .article-content blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--mint);background:var(--mint-soft);color:var(--plum-2);border-radius:0 10px 10px 0}
        .article-content table{width:100%;border-collapse:collapse;margin:25px 0;background:#fff}
        .article-content th,.article-content td{padding:12px;border:1px solid var(--line);text-align:left}
        .article-content th{background:#f1ebe3;color:var(--plum)}
        .side-card{background:var(--plum);color:#fff;border-radius:var(--radius);padding:25px;position:sticky;top:105px}
        .side-card h2{font-size:20px;margin:0 0 14px}
        .side-card p{font-size:14px;color:#d9cdd9;margin:0 0 18px}
        .side-list{list-style:none;padding:0;margin:0}
        .side-list li{padding:11px 0;border-top:1px solid rgba(255,255,255,.15);font-size:14px;color:#eee5ee}
        .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .notice-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:23px;transition:.2s}
        .notice-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c8ddd3}
        .notice-card h2{font-size:19px;color:var(--plum);margin:0 0 8px}
        .notice-card p{font-size:14px;color:var(--muted);margin:0}
        .faq{max-width:900px}
        .faq details{background:var(--paper);border:1px solid var(--line);padding:17px 20px;margin-bottom:10px;border-radius:10px}
        .faq summary{cursor:pointer;color:var(--plum);font-weight:700;outline:none}
        .faq summary:focus-visible{outline:3px solid rgba(79,139,118,.35);outline-offset:4px}
        .faq details p{color:var(--muted);font-size:14px;margin:12px 0 0}
        .return-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px 30px;background:var(--mint-soft);border-radius:var(--radius)}
        .return-bar strong{color:var(--plum);font-size:19px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;cursor:pointer}
        .btn-primary{background:var(--mint);color:#fff}
        .btn-primary:hover{background:#407763;transform:translateY(-2px);box-shadow:0 8px 18px rgba(79,139,118,.2)}
        .btn-secondary{border-color:#cdbfb7;color:var(--plum);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
        .empty-state{padding:45px 20px;text-align:center;background:var(--paper);border:1px dashed #cfc2b7;border-radius:var(--radius);color:var(--muted)}
        footer{background:var(--plum);color:#fff;padding:60px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:35px}
        footer h3{font-size:17px;margin:0 0 15px;color:#fff}
        footer p,footer a{display:block;color:#cfc3d0;font-size:14px;margin:0 0 9px}
        footer a:hover{color:#fff}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:35px;padding-top:20px;color:#bcaebe;font-size:12px}
        @media (max-width:1024px){
            .nav-wrap{gap:15px}.brand{min-width:220px}.nav a{padding:8px 8px;font-size:13px}
            .article-layout{grid-template-columns:1fr}.side-card{position:static}.notice-grid{grid-template-columns:repeat(3,1fr)}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:70px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{font-size:10px}
            .brand-mark{width:34px;height:34px}.menu-toggle{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:70px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{padding:11px 13px}.article-hero{padding:42px 0 35px}.section{padding:52px 0}
            .article-lead{font-size:16px}.notice-grid{grid-template-columns:1fr}.return-bar{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{flex-direction:column;gap:8px}
        }
        @media (max-width:520px){
            .article-hero h1{font-size:32px}.article-content{padding:23px 19px}.article-content h2{font-size:25px}
            .meta-row{gap:8px 14px}.footer-grid{grid-template-columns:1fr}.side-card{padding:21px}
        }

/* roulang page: category2 */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid rgba(79,139,118,.38);outline-offset:3px}
        img{max-width:100%;display:block}
        button{font:inherit}
        h1,h2,h3,p{overflow-wrap:anywhere}
        h1,h2,h3{color:var(--plum);font-weight:800;line-height:1.25;margin-top:0}
        h1{font-size:clamp(34px,5vw,56px);letter-spacing:-.04em}
        h2{font-size:clamp(27px,3vw,36px);letter-spacing:-.025em}
        h3{font-size:20px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .nav-action{background:var(--coral)!important;color:#fff!important;font-weight:700!important;padding:11px 17px!important}
        .nav-action:hover{background:#c96852!important;transform:translateY(-1px)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        .hero{padding:82px 0 68px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 58%,#e8eee9 100%)}
        .hero-grid{display:grid;grid-template-columns:1.14fr .86fr;gap:70px;align-items:end}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:18px}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        .hero-copy p{max-width:690px;color:var(--muted);font-size:18px;margin:18px 0 28px}
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;cursor:pointer}
        .btn-primary{background:var(--mint);color:#fff}
        .btn-primary:hover{background:#407763;transform:translateY(-2px);box-shadow:0 8px 18px rgba(79,139,118,.2)}
        .btn-secondary{border-color:#cdbfb7;color:var(--plum);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
        .hero-panel{background:var(--plum);color:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .hero-panel:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-65px;bottom:-75px}
        .panel-label{color:#bcaebe;font-size:13px}
        .panel-title{color:#fff;font-size:25px;margin:8px 0 20px}
        .panel-line{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-top:1px solid rgba(255,255,255,.15);font-size:14px}
        .panel-line strong{color:#fff}
        .status{display:inline-flex;align-items:center;gap:7px;color:#cde5da;font-size:13px}
        .status:before{content:"";width:8px;height:8px;background:#83c2a6;border-radius:50%}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head p{margin:0;color:var(--muted);max-width:560px}
        .info-strip{background:var(--paper);border-bottom:1px solid var(--line);border-top:1px solid var(--line)}
        .info-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .info-item{padding:22px 24px;border-right:1px solid var(--line)}
        .info-item:last-child{border:0}
        .info-item span{display:block;font-size:13px;color:var(--muted)}
        .info-item b{display:block;color:var(--plum);font-size:17px;margin-top:3px}
        .download-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}
        .version-card{background:var(--plum);color:#fff;border-radius:var(--radius);padding:32px;position:relative;overflow:hidden}
        .version-card:before{content:"APP";position:absolute;right:18px;top:18px;color:rgba(255,255,255,.08);font-size:70px;font-weight:900;line-height:1}
        .version-card h2,.version-card h3{color:#fff}
        .version-card p{color:#d8ccd9}
        .version-badge{display:inline-block;background:var(--coral);border-radius:20px;padding:4px 11px;font-size:12px;margin-bottom:22px}
        .record-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .record{display:grid;grid-template-columns:112px 1fr auto;gap:20px;align-items:center;padding:23px 25px;border-bottom:1px solid var(--line);transition:.2s}
        .record:last-child{border:0}
        .record:hover{background:#fbf7f0}
        .record time{font-size:13px;color:var(--mint);font-weight:700}
        .record h3{font-size:18px;margin:0 0 4px}
        .record p{margin:0;color:var(--muted);font-size:14px}
        .tag{display:inline-block;padding:3px 9px;background:var(--mint-soft);color:var(--mint);border-radius:20px;font-size:12px;white-space:nowrap}
        .soft-section{background:#eee8e1}
        .adapt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .adapt-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:25px;transition:.2s}
        .adapt-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cbb9ae}
        .adapt-icon{width:42px;height:42px;border-radius:12px;background:var(--mint-soft);color:var(--mint);display:grid;place-items:center;font-weight:800;margin-bottom:18px}
        .adapt-card p{color:var(--muted);font-size:14px;margin:0}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:28px 25px 30px;border-right:1px solid var(--line)}
        .step:last-child{border:0}
        .step-num{color:var(--coral);font-size:28px;font-weight:800;display:block;margin-bottom:15px}
        .step p{color:var(--muted);font-size:14px;margin:0}
        .notice{background:var(--plum);color:#e9dfe9;border-radius:22px;padding:34px}
        .notice h2,.notice h3{color:#fff}
        .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
        .notice-item{border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:20px}
        .notice-item p{font-size:14px;margin:6px 0 0;color:#cfc1d0}
        .faq{max-width:900px}
        .faq details{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 20px}
        .faq details:first-child{border-radius:12px 12px 0 0}
        .faq details:last-child{border-radius:0 0 12px 12px}
        .faq summary{cursor:pointer;font-weight:700;color:var(--plum);list-style:none;position:relative;padding-right:28px}
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"+";position:absolute;right:0;color:var(--mint);font-size:22px;line-height:1}
        .faq details[open] summary:after{content:"−"}
        .faq details p{color:var(--muted);font-size:14px;margin:12px 28px 3px 0}
        .return-box{display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--mint-soft);border-radius:18px;padding:28px 32px}
        .return-box h2{font-size:25px;margin:0 0 5px}
        .return-box p{color:var(--muted);margin:0;font-size:14px}
        footer{background:var(--plum);color:#cfc1d0;padding:58px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.25fr;gap:35px}
        footer h3{color:#fff;font-size:16px;margin:0 0 14px}
        footer p{font-size:13px;line-height:1.8;margin:0}
        footer a{display:block;color:#cfc1d0;font-size:13px;margin:7px 0;transition:.2s}
        footer a:hover{color:#fff;transform:translateX(2px)}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:38px;padding-top:18px;color:#aa9baa;font-size:12px}
        @media(max-width:1100px){
            .nav-wrap{gap:14px}.brand{min-width:230px}.nav a{padding:8px 8px;font-size:13px}
            .hero-grid{gap:38px}.record{grid-template-columns:95px 1fr}
            .record .tag{grid-column:2}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .nav-wrap{height:68px;justify-content:space-between}.brand{min-width:0}
            .brand-text{font-size:14px}.brand-text small{font-size:10px}.brand-mark{width:34px;height:34px}
            .menu-toggle{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:74px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.is-open{display:flex}.nav a{padding:11px 13px}
            .hero{padding:58px 0}.hero-grid,.download-layout{grid-template-columns:1fr}
            .hero-copy p{font-size:16px}.section{padding:60px 0}
            .info-grid{grid-template-columns:repeat(2,1fr)}.info-item:nth-child(2){border-right:0}.info-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .section-head{display:block}.section-head p{margin-top:12px}
            .adapt-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}
            .step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .notice-grid{grid-template-columns:1fr}.return-box{display:block}.return-box .btn{margin-top:18px}
            .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            h1{font-size:34px}.hero-actions .btn{width:100%}.info-item{padding:17px 14px}
            .record{grid-template-columns:1fr;gap:8px;padding:20px}.record .tag{grid-column:auto;justify-self:start}
            .steps{grid-template-columns:1fr}.step,.step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}
            .step:last-child{border-bottom:0}.notice{padding:25px 20px}.footer-grid{grid-template-columns:1fr;gap:25px}
        }

/* roulang page: category3 */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .nav-action{background:var(--coral)!important;color:#fff!important;font-weight:700!important;padding:11px 17px!important}
        .nav-action:hover{background:#c96852!important;transform:translateY(-1px)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        .hero{padding:76px 0 62px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 58%,#e8eee9 100%)}
        .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:30px}
        .breadcrumb a:hover{color:var(--mint)}
        .breadcrumb span{color:#b3a9a9}
        .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:68px;align-items:end}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.04em;color:var(--plum);margin:17px 0 20px;font-weight:800}
        h2{font-size:clamp(27px,3vw,36px);line-height:1.3;color:var(--plum);font-weight:800;margin-bottom:12px}
        h3{font-size:20px;line-height:1.4;color:var(--plum);font-weight:750;margin-bottom:8px}
        .hero-copy p{max-width:690px;color:var(--muted);font-size:18px;margin-bottom:25px}
        .hero-note{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .hero-note b{color:var(--mint)}
        .status-card{background:var(--plum);color:#fff;border-radius:24px;padding:29px;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .status-card:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-58px;bottom:-68px}
        .status-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.17);padding-bottom:20px;margin-bottom:22px}
        .status-head strong{font-size:19px}
        .status-dot{display:inline-flex;align-items:center;gap:7px;color:#cde8dc;font-size:13px}
        .status-dot:before{content:"";width:8px;height:8px;border-radius:50%;background:#8ed0ae}
        .status-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14px}
        .status-row span{color:#c6b8c6}
        .status-row b{font-weight:650}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 19px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.2s;cursor:pointer}
        .btn-primary{background:var(--mint);color:#fff}
        .btn-primary:hover{background:#407763;transform:translateY(-2px);box-shadow:0 8px 18px rgba(79,139,118,.2)}
        .btn-secondary{border-color:#cdbfb7;color:var(--plum);background:transparent}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);background:var(--mint-soft)}
        .status-card .btn{width:100%;margin-top:20px}
        .info-strip{background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 8px 22px rgba(43,32,51,.04)}
        .info-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .info-item{padding:22px 24px;border-right:1px solid var(--line)}
        .info-item:last-child{border:0}
        .info-item span{display:block;font-size:13px;color:var(--muted)}
        .info-item b{display:block;color:var(--plum);font-size:17px;margin-top:3px}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head p{margin:0;color:var(--muted);max-width:520px}
        .filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
        .filter-bar a,.tag{display:inline-block;padding:7px 13px;background:var(--mint-soft);color:var(--mint);border-radius:22px;font-size:13px;font-weight:650;transition:.2s}
        .filter-bar a:hover,.filter-bar a.active{background:var(--mint);color:#fff}
        .news-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
        .news-item{display:grid;grid-template-columns:100px 1fr 115px;gap:22px;align-items:center;padding:24px 27px;border-bottom:1px solid var(--line);transition:.2s}
        .news-item:last-child{border:0}
        .news-item:hover{background:#fbf7f0}
        .news-date{color:var(--mint);font-size:13px;font-weight:750;line-height:1.4}
        .news-date small{display:block;color:var(--muted);font-weight:400;margin-top:4px}
        .news-item h3{font-size:19px;margin-bottom:5px}
        .news-item p{color:var(--muted);font-size:14px;margin:0}
        .news-item .read-link{color:var(--coral);font-size:14px;font-weight:700;text-align:right}
        .news-item .read-link:hover{color:var(--mint)}
        .tag{padding:3px 9px;margin-bottom:7px;font-size:12px}
        .empty-state{padding:38px;text-align:center;color:var(--muted)}
        .feature-panel{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
        .feature-main,.feature-side{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
        .feature-main{background:var(--plum);color:#fff}
        .feature-main h3{color:#fff;font-size:25px}
        .feature-main p,.feature-side p{color:var(--muted)}
        .feature-main p{color:#d8cdd8}
        .feature-side{display:flex;flex-direction:column;justify-content:center}
        .feature-side + .feature-side{margin-top:0}
        .meta-line{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:14px}
        .meta-line .tag{margin:0}
        .source-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .source-card{padding:23px;background:var(--paper);border:1px solid var(--line);border-radius:13px}
        .source-card strong{display:block;color:var(--mint);font-size:26px;margin-bottom:7px}
        .source-card p{font-size:14px;color:var(--muted);margin:0}
        .mobile-section{background:#eee8e1}
        .mobile-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:58px;align-items:center}
        .device-card{background:var(--plum);border-radius:28px;padding:20px;max-width:270px;margin:auto;box-shadow:var(--shadow)}
        .device-screen{height:360px;border-radius:20px;background:#f3eee6;padding:24px;color:var(--plum)}
        .device-screen strong{font-size:18px;display:block;margin:28px 0 18px}
        .screen-line{height:10px;border-radius:8px;background:#d7cec7;margin:12px 0}
        .screen-line.short{width:60%}
        .mobile-copy ul{padding:0;margin:22px 0;list-style:none}
        .mobile-copy li{padding:13px 0;border-bottom:1px solid var(--line)}
        .mobile-copy li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
        .notice{background:#e7eee9;border-left:4px solid var(--mint);padding:20px 23px;border-radius:10px;color:var(--plum)}
        .notice p{margin:0;color:var(--muted);font-size:14px}
        .faq{max-width:900px}
        .faq details{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 20px}
        .faq details:first-child{border-radius:12px 12px 0 0}
        .faq details:last-child{border-radius:0 0 12px 12px;border-bottom:0}
        .faq summary{cursor:pointer;font-weight:750;color:var(--plum);list-style:none;position:relative;padding-right:28px}
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"+";position:absolute;right:0;color:var(--mint);font-size:22px;line-height:1}
        .faq details[open] summary:after{content:"−"}
        .faq details p{color:var(--muted);font-size:14px;margin:12px 28px 0 0}
        .closing{background:var(--plum);color:#fff;border-radius:20px;padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .closing h2{color:#fff;margin-bottom:6px;font-size:28px}
        .closing p{color:#d8cdd8;margin:0}
        footer{background:var(--plum);color:#d9ced9;margin-top:0;padding:62px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:40px}
        footer h3{color:#fff;font-size:17px;margin-bottom:14px}
        footer p{font-size:14px;line-height:1.8;margin:0;color:#c7b9c7}
        footer a{display:block;color:#c7b9c7;font-size:14px;margin:7px 0;transition:.2s}
        footer a:hover{color:#fff;padding-left:3px}
        .copyright{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#ad9eae;font-size:12px}
        a:focus-visible,summary:focus-visible,.btn:focus-visible{outline:3px solid rgba(215,121,97,.45);outline-offset:3px}
        @media(max-width:1024px){
            .nav-wrap{gap:16px}.brand{min-width:220px}.nav a{padding:8px 8px;font-size:13px}
            .hero-grid,.feature-panel{gap:35px}.news-item{grid-template-columns:85px 1fr 90px}
        }
        @media(max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .nav-wrap{height:70px}.brand{min-width:0;flex:1}.brand-text{font-size:14px}.brand-text small{font-size:10px}
            .nav{display:none;position:absolute;left:16px;right:16px;top:70px;padding:12px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
            .nav.open{display:flex}.nav a{display:block;padding:11px 13px}.menu-toggle{display:block}
            .nav-action{display:none!important}.hero{padding:54px 0 48px}.hero-grid,.feature-panel,.mobile-grid{grid-template-columns:1fr}
            h1{font-size:36px}.hero-copy p{font-size:16px}.status-card{max-width:560px}
            .info-grid{grid-template-columns:repeat(2,1fr)}.info-item:nth-child(2){border-right:0}.info-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:10px}
            .news-item{grid-template-columns:74px 1fr;padding:20px 17px;gap:13px}.news-item .read-link{grid-column:2;text-align:left;margin-top:4px}
            .source-grid{grid-template-columns:1fr}.device-card{max-width:230px}.closing{display:block;padding:28px 25px}.closing .btn{margin-top:20px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            .brand-mark{width:34px;height:34px;font-size:13px}.brand-text{font-size:13px}.breadcrumb{margin-bottom:20px}
            h1{font-size:31px}.hero-note{display:block}.hero-note span{display:block;margin-top:5px}
            .info-grid{grid-template-columns:1fr 1fr}.info-item{padding:17px 13px}.info-item b{font-size:15px}
            .feature-main,.feature-side{padding:23px}.footer-grid{grid-template-columns:1fr}
            .news-item h3{font-size:17px}.news-date{font-size:12px}
        }

/* roulang page: category4 */
:root{
            --plum:#2b2033;
            --plum-2:#403048;
            --mint:#4f8b76;
            --mint-soft:#e5f0eb;
            --coral:#d77961;
            --ivory:#f6f1e8;
            --paper:#fffdf8;
            --ink:#302b32;
            --muted:#716a70;
            --line:#e5ddd3;
            --shadow:0 18px 42px rgba(43,32,51,.09);
            --radius:16px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid rgba(215,121,97,.55);outline-offset:3px}
        img{max-width:100%;display:block}
        button{font:inherit}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(246,241,232,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav-wrap{min-height:78px;display:flex;align-items:center;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;min-width:260px}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-2px}
        .brand-text{line-height:1.2;font-weight:800;color:var(--plum)}
        .brand-text small{display:block;margin-top:4px;color:var(--mint);font-size:11px;letter-spacing:1px}
        .nav{display:flex;align-items:center;gap:6px;flex:1}
        .nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
        .nav a:hover,.nav a.active{color:var(--plum);background:var(--mint-soft)}
        .nav a.active{font-weight:700}
        .nav-action{background:var(--coral)!important;color:#fff!important;font-weight:700!important;padding:11px 17px!important}
        .nav-action:hover{background:#c96852!important;transform:translateY(-1px)}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;color:var(--plum)}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{color:var(--plum);font-weight:800;line-height:1.25}
        h1{font-size:clamp(34px,5vw,54px);letter-spacing:-.04em;margin-bottom:20px}
        h2{font-size:clamp(27px,3vw,36px);margin-bottom:12px}
        h3{font-size:20px;margin-bottom:8px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        .page-hero{padding:76px 0 64px;background:linear-gradient(135deg,#f6f1e8 0%,#f8f4ed 58%,#e8eee9 100%)}
        .hero-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:70px;align-items:end}
        .hero-copy p{max-width:720px;color:var(--muted);font-size:18px;margin-bottom:26px}
        .crumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px}
        .crumbs a:hover{color:var(--mint)}
        .hero-note{background:var(--plum);color:#fff;border-radius:22px;padding:28px;box-shadow:var(--shadow)}
        .hero-note strong{display:block;font-size:20px;margin-bottom:17px}
        .status-line{display:flex;align-items:center;gap:9px;padding:14px 0;border-top:1px solid rgba(255,255,255,.17);font-size:14px;color:#eee5ec}
        .status-dot{width:9px;height:9px;background:#9fc7b5;border-radius:50%;display:inline-block}
        .section{padding:78px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-head p{margin:0;color:var(--muted);max-width:560px}
        .summary-bar{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .summary-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .summary-item{padding:22px 24px;border-right:1px solid var(--line)}
        .summary-item:last-child{border-right:0}
        .summary-item span{display:block;color:var(--muted);font-size:13px}
        .summary-item b{display:block;color:var(--plum);font-size:17px;margin-top:3px}
        .guide-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);overflow:hidden}
        .guide-row{display:grid;grid-template-columns:72px 1fr auto;gap:22px;align-items:center;padding:24px;border-bottom:1px solid var(--line);transition:.2s}
        .guide-row:last-child{border-bottom:0}
        .guide-row:hover{background:#fbf7f0}
        .guide-number{width:42px;height:42px;border-radius:12px;background:var(--mint-soft);color:var(--mint);display:grid;place-items:center;font-weight:800}
        .guide-row p{color:var(--muted);font-size:14px;margin:0;max-width:700px}
        .guide-meta{text-align:right;min-width:120px}
        .tag{display:inline-block;padding:3px 9px;background:var(--mint-soft);color:var(--mint);border-radius:20px;font-size:12px;margin-bottom:5px}
        .guide-meta small{display:block;color:var(--muted);font-size:12px}
        .verify-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .verify-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:22px;position:relative}
        .verify-card .step{color:var(--coral);font-weight:800;font-size:13px}
        .verify-card p{font-size:14px;color:var(--muted);margin:0}
        .note-panel{background:var(--plum);color:#fff;border-radius:20px;padding:34px}
        .note-panel h2,.note-panel h3{color:#fff}
        .note-panel p{color:#d9cedb}
        .note-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
        .note-card{border:1px solid rgba(255,255,255,.17);border-radius:12px;padding:20px}
        .note-card h3{font-size:18px}
        .note-card p{font-size:14px;margin:0}
        .mobile-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center}
        .device-card{background:#eee8e1;border:1px solid var(--line);border-radius:28px;padding:24px;max-width:330px;margin:auto}
        .device-screen{background:var(--paper);border:8px solid var(--plum);border-radius:24px;padding:28px 18px;min-height:300px}
        .screen-line{height:10px;background:var(--mint-soft);border-radius:8px;margin:14px 0}
        .screen-line.short{width:62%}
        .mobile-copy ul{padding:0;margin:20px 0;list-style:none}
        .mobile-copy li{padding:13px 0;border-bottom:1px solid var(--line)}
        .mobile-copy li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
        .timeline{border-left:2px solid #d8cfc6;padding-left:30px;margin:10px 0}
        .timeline-item{position:relative;margin-bottom:28px}
        .timeline-item:last-child{margin-bottom:0}
        .timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--coral);left:-36px;top:9px}
        .timeline-item span{color:var(--mint);font-size:13px;font-weight:700}
        .timeline-item h3{margin:4px 0;font-size:18px}
        .timeline-item p{margin:0;color:var(--muted);font-size:14px}
        .faq{max-width:900px}
        .faq details{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 20px}
        .faq details:first-child{border-radius:14px 14px 0 0}
        .faq details:last-child{border-radius:0 0 14px 14px;border-bottom:0}
        .faq summary{cursor:pointer;color:var(--plum);font-weight:700}
        .faq details p{color:var(--muted);font-size:14px;margin:13px 0 0}
        .disclaimer{background:#eee8e1;border:1px solid var(--line);border-radius:14px;padding:22px;color:var(--muted);font-size:14px}
        .disclaimer strong{color:var(--plum)}
        .back-link{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-weight:700}
        .back-link:hover{color:var(--coral)}
        footer{background:var(--plum);color:#d9cedb;padding:64px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:35px}
        footer h3{color:#fff;font-size:17px;margin-bottom:14px}
        footer p{font-size:14px;margin:0;color:#c7bac9}
        footer a{display:block;color:#c7bac9;font-size:14px;margin:7px 0;transition:.2s}
        footer a:hover{color:#fff;transform:translateX(2px)}
        .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);margin-top:42px;padding-top:18px;color:#aa9dad;font-size:12px}
        @media(max-width:1024px){
            .brand{min-width:220px}.nav-wrap{gap:15px}.nav a{padding:8px 9px}
            .hero-layout,.mobile-grid{gap:35px}.verify-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(100% - 32px,var(--container))}
            .nav-wrap{min-height:68px;justify-content:space-between}
            .menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:16px;right:16px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow)}
            .nav.open{display:flex;flex-direction:column;align-items:stretch}.nav a{display:block}
            .page-hero{padding:54px 0 48px}.hero-layout,.mobile-grid{grid-template-columns:1fr}
            .hero-note{max-width:none}.summary-grid{grid-template-columns:repeat(2,1fr)}
            .summary-item:nth-child(2){border-right:0}.summary-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:10px}
            .guide-row{grid-template-columns:50px 1fr;gap:14px}.guide-meta{grid-column:2;text-align:left}
            .note-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}
        }
        @media(max-width:520px){
            h1{font-size:34px}.brand{min-width:0}.brand-text{font-size:14px}.brand-text small{font-size:9px}
            .brand-mark{width:34px;height:34px}.summary-grid,.verify-grid{grid-template-columns:1fr}
            .summary-item{border-right:0!important;border-bottom:1px solid var(--line)}
            .summary-item:last-child{border-bottom:0}.guide-row{padding:19px}.guide-row h3{font-size:18px}
            .note-panel{padding:24px}.footer-grid{grid-template-columns:1fr}.copyright{margin-top:28px}
        }