/* roulang page: index */
:root{
            --bg:#f3f7fb;
            --surface:#ffffff;
            --surface-soft:#edf4fa;
            --ink:#183149;
            --muted:#64788a;
            --line:#dce6ef;
            --blue:#285b83;
            --blue-dark:#183f61;
            --blue-soft:#dcecf8;
            --copper:#b87855;
            --green:#32776e;
            --shadow:0 14px 34px rgba(35,71,99,.08);
            --shadow-hover:0 18px 42px rgba(35,71,99,.14);
            --radius:14px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;font-size:15px}
        a{color:inherit;text-decoration:none;transition:.22s ease}
        img{max-width:100%;display:block}
        button,input,select,textarea{font:inherit}
        button:focus,input:focus,select:focus,textarea:focus,a:focus{outline:3px solid rgba(40,91,131,.22);outline-offset:2px}
        .app-shell{min-height:100vh}
        .side-nav{position:fixed;z-index:20;top:0;left:0;bottom:0;width:248px;padding:31px 22px 24px;background:#fbfdff;border-right:1px solid var(--line);display:flex;flex-direction:column}
        .brand{display:flex;gap:11px;align-items:flex-start;margin-bottom:34px}
        .brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--blue);position:relative}
        .brand-mark:after{content:"";position:absolute;width:13px;height:13px;border:2px solid #fff;border-radius:50%;top:8px;left:9px}
        .brand-name{font-size:16px;font-weight:800;line-height:1.35;letter-spacing:.02em}
        .brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:3px}
        .age-badge{display:inline-flex;align-items:center;gap:6px;color:var(--green);background:#e5f3f0;border:1px solid #cde7e2;border-radius:7px;padding:6px 9px;font-size:12px;margin-bottom:22px}
        .nav-label{font-size:11px;color:#8a9aa8;letter-spacing:.16em;margin:0 0 9px 10px}
        .main-nav{display:grid;gap:5px}
        .main-nav a{padding:11px 12px;border-left:3px solid transparent;border-radius:8px;color:#526a7b;font-weight:650}
        .main-nav a:hover{background:var(--surface-soft);color:var(--blue-dark)}
        .main-nav a.active{background:var(--blue-soft);border-left-color:var(--blue);color:var(--blue-dark);box-shadow:0 5px 14px rgba(40,91,131,.07)}
        .nav-icon{display:inline-block;width:23px;color:var(--blue);font-size:14px}
        .side-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:12px}
        .side-bottom p{margin:7px 0}
        .main-area{margin-left:248px;min-height:100vh}
        .mobile-bar{display:none}
        .container{max-width:1280px;margin:0 auto;padding:0 54px}
        section{padding:88px 0}
        .eyebrow{color:var(--copper);font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;margin-bottom:12px}
        h1,h2,h3{margin:0;color:var(--ink);line-height:1.25;letter-spacing:-.025em}
        h1{font-size:clamp(38px,4.4vw,58px);max-width:680px}
        h2{font-size:32px}
        h3{font-size:19px}
        .section-head{max-width:690px;margin-bottom:34px}
        .section-head p,.hero-copy p{color:var(--muted);margin:15px 0 0}
        .hero{padding:72px 0 42px}
        .hero-panel{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:58px 58px 48px;position:relative;overflow:hidden}
        .hero-panel:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--blue)}
        .hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(350px,.92fr);gap:55px;align-items:center}
        .hero-copy p{font-size:17px;max-width:620px;line-height:1.85}
        .button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:27px}
        .button{border-radius:8px!important;margin:0!important;padding:12px 19px!important;font-weight:750!important;line-height:1.3!important}
        .button.primary{background:var(--blue)!important}
        .button.primary:hover{background:var(--blue-dark)!important;box-shadow:0 8px 17px rgba(40,91,131,.2)}
        .button.secondary{background:var(--blue-soft)!important;color:var(--blue-dark)!important}
        .button.secondary:hover{background:#c9e0f0!important}
        .preview{background:var(--surface-soft);border:1px solid var(--line);border-radius:15px;padding:15px}
        .preview-cover{height:215px;border-radius:11px;background:linear-gradient(135deg,#b9d1e0,#edf5f9 52%,#c9d9e4);position:relative;overflow:hidden}
        .preview-cover:after{content:"精品主题预览";position:absolute;bottom:17px;left:18px;color:var(--blue-dark);font-size:20px;font-weight:800}
        .preview-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:11px}
        .preview-list{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:11px}
        .mini-info{background:#fff;border:1px solid var(--line);border-radius:9px;padding:11px;font-size:12px;color:var(--muted)}
        .mini-info strong{display:block;color:var(--ink);font-size:13px;margin-bottom:3px}
        .notice{display:flex;align-items:center;gap:12px;margin-top:20px;padding:13px 17px;background:#f8fbfd;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:13px}
        .notice b{color:var(--green)}
        .feature-band{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:18px}
        .entry-card,.topic-card,.info-card,.quote-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.22s ease}
        .entry-card:hover,.topic-card:hover,.info-card:hover,.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b9d2e4}
        .entry-card{padding:27px;min-height:190px;display:flex;flex-direction:column;justify-content:space-between}
        .entry-card.large{background:var(--blue-dark);color:#fff}
        .entry-card.large h3,.entry-card.large p{color:#fff}
        .entry-card h3{margin:8px 0}
        .entry-card p{color:var(--muted);font-size:14px;margin:0 0 17px}
        .entry-card.large p{color:#d9e7f0}
        .label{display:inline-block;width:max-content;background:#eef4f8;color:var(--blue);border-radius:5px;padding:4px 8px;font-size:11px;font-weight:800}
        .entry-card.large .label{background:#426c8d;color:#fff}
        .entry-link{color:var(--blue);font-weight:800;font-size:13px}
        .entry-card.large .entry-link{color:#fff}
        .data-strip{background:var(--surface-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .metrics{display:grid;grid-template-columns:repeat(4,1fr)}
        .metric{padding:10px 24px;border-right:1px solid var(--line)}
        .metric:last-child{border:0}
        .metric strong{display:block;font-size:30px;color:var(--blue-dark);line-height:1.2}
        .metric span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
        .topics{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
        .topic-card{padding:25px}
        .topic-card.featured{min-height:270px;background:#e5f0f6;display:flex;flex-direction:column;justify-content:flex-end}
        .topic-card h3{margin:13px 0 7px}
        .topic-card p{color:var(--muted);font-size:14px;margin:0 0 19px}
        .topic-stack{display:grid;gap:20px}
        .topic-stack .topic-card{min-height:125px}
        .route{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .route-step{padding:25px 23px;border-right:1px solid var(--line);position:relative}
        .route-step:last-child{border:0}
        .route-no{font-size:12px;color:var(--copper);font-weight:800;letter-spacing:.12em}
        .route-step h3{margin:12px 0 7px}
        .route-step p{color:var(--muted);font-size:13px;margin:0}
        .updates-layout{display:grid;grid-template-columns:1fr 310px;gap:42px}
        .update-list{border-top:1px solid var(--line)}
        .update-item{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
        .update-item h3{font-size:16px;margin:0 0 5px}
        .update-item p{margin:0;color:var(--muted);font-size:13px}
        .date{color:#8a9aa8;font-size:12px;white-space:nowrap}
        .side-note{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;height:max-content;box-shadow:var(--shadow)}
        .side-note h3{margin-bottom:10px}
        .side-note p{color:var(--muted);font-size:13px;margin:0 0 16px}
        .accordion{background:transparent;margin:0}
        .accordion-title{border:0!important;border-bottom:1px solid var(--line)!important;color:var(--ink)!important;font-weight:750;padding:20px 38px 20px 0!important}
        .accordion-title:hover{background:transparent!important;color:var(--blue)!important}
        .accordion-content{border:0!important;background:transparent!important;color:var(--muted);padding:0 40px 19px 0!important;font-size:14px}
        .contact{background:var(--blue-dark);color:#fff;border-radius:18px;padding:38px 42px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
        .contact h2{color:#fff}
        .contact p{color:#d6e5ee;margin:12px 0 0}
        .feedback-form{display:grid;grid-template-columns:1fr 1fr;gap:11px}
        .feedback-form input,.feedback-form select,.feedback-form textarea{border:1px solid #6d8ca2;background:#285471;color:#fff;border-radius:7px;min-height:44px;padding:10px 12px;margin:0}
        .feedback-form textarea{grid-column:1/-1;min-height:85px}
        .feedback-form input::placeholder,.feedback-form textarea::placeholder{color:#c2d2dc}
        .feedback-form .button{grid-column:1/-1;justify-self:start;background:#fff!important;color:var(--blue-dark)!important}
        .privacy-note{font-size:11px;color:#b8cbd5;margin:5px 0 0}
        footer{padding:36px 0 28px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
        .footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
        .footer-brand{font-weight:800;color:var(--ink);font-size:15px}
        .footer-links{display:flex;gap:19px;flex-wrap:wrap}
        .footer-links a:hover{color:var(--blue)}
        .footer-copy{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1100px){
            .side-nav{width:218px;padding-left:17px;padding-right:17px}.main-area{margin-left:218px}.container{padding:0 32px}.hero-panel{padding:40px 38px}.hero-grid{gap:30px}.feature-band{grid-template-columns:1fr 1fr}.entry-card.large{grid-column:1/-1}.topics{grid-template-columns:1fr}.updates-layout{grid-template-columns:1fr}
        }
        @media(max-width:767px){
            .side-nav{display:none}.main-area{margin-left:0}.mobile-bar{display:flex;position:sticky;top:0;z-index:30;align-items:center;justify-content:space-between;padding:13px 17px;background:#fbfdff;border-bottom:1px solid var(--line);box-shadow:0 4px 14px rgba(35,71,99,.06)}.mobile-brand{font-weight:800;font-size:14px;color:var(--ink)}.menu-button{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;color:var(--blue);font-size:22px}.container{padding:0 18px}section{padding:58px 0}.hero{padding-top:25px}.hero-panel{padding:34px 23px 25px;border-radius:15px}.hero-grid{display:block}.hero-copy p{font-size:15px}.preview{margin-top:30px}.preview-cover{height:175px}h1{font-size:36px}h2{font-size:27px}.feature-band{display:flex;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}.entry-card{min-width:275px;scroll-snap-align:start}.metrics{grid-template-columns:1fr 1fr}.metric{padding:17px 12px;border-bottom:1px solid var(--line)}.metric:nth-child(2){border-right:0}.route{grid-template-columns:1fr 1fr}.route-step:nth-child(2){border-right:0}.route-step{border-bottom:1px solid var(--line);padding:20px 14px}.contact{display:block;padding:28px 21px}.feedback-form{margin-top:25px;display:block}.feedback-form input,.feedback-form select,.feedback-form textarea,.feedback-form .button{display:block;width:100%;margin-bottom:11px}.footer-grid,.footer-copy{display:block}.footer-links{margin-top:18px}.footer-copy span{display:block;margin-top:7px}.off-canvas{background:#fbfdff}.off-canvas .main-nav{padding:20px}.off-canvas .main-nav a{display:block}.js-off-canvas-overlay{background:rgba(24,49,73,.35)}
        }

/* roulang page: category1 */
:root{
      --bg:#f3f7fb;
      --surface:#fff;
      --surface-soft:#edf4fa;
      --ink:#183149;
      --muted:#64788a;
      --line:#dce6ef;
      --blue:#285b83;
      --blue-dark:#183f61;
      --blue-soft:#dcecf8;
      --copper:#b87855;
      --green:#32776e;
      --warning:#a36b3b;
      --shadow:0 14px 34px rgba(35,71,99,.08);
      --shadow-hover:0 18px 42px rgba(35,71,99,.14);
      --radius:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.22s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button:focus,input:focus,select:focus,textarea:focus,a:focus{outline:3px solid rgba(40,91,131,.22);outline-offset:2px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(32px,4vw,50px);line-height:1.2;letter-spacing:-.035em;margin-bottom:17px}
    h2{font-size:30px;line-height:1.3;margin-bottom:13px}
    h3{font-size:19px;line-height:1.4}
    .side-nav{position:fixed;z-index:20;top:0;left:0;bottom:0;width:248px;padding:31px 22px 24px;background:#fbfdff;border-right:1px solid var(--line);display:flex;flex-direction:column}
    .brand{display:flex;gap:11px;align-items:flex-start;margin-bottom:34px}
    .brand-mark{width:35px;height:35px;flex:0 0 35px;border-radius:10px;background:var(--blue);position:relative}
    .brand-mark:after{content:"";position:absolute;width:13px;height:13px;border:2px solid #fff;border-radius:50%;top:8px;left:9px}
    .brand-name{font-size:16px;font-weight:800;line-height:1.35;letter-spacing:.02em}
    .brand-sub{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:3px}
    .age-badge{display:inline-flex;align-items:center;gap:6px;color:var(--green);background:#e5f3f0;border:1px solid #cde7e2;border-radius:7px;padding:6px 9px;font-size:12px;margin-bottom:22px}
    .nav-label{font-size:11px;color:#8a9aa8;letter-spacing:.16em;margin:0 0 9px 10px}
    .main-nav{display:grid;gap:5px}
    .main-nav a{padding:11px 12px;border-left:3px solid transparent;border-radius:8px;color:#526a7b;font-weight:650}
    .main-nav a:hover{background:var(--surface-soft);color:var(--blue-dark)}
    .main-nav a.active{background:var(--blue-soft);border-left-color:var(--blue);color:var(--blue-dark);box-shadow:0 5px 14px rgba(40,91,131,.07)}
    .nav-icon{display:inline-block;width:23px;color:var(--blue);font-size:14px}
    .side-note{margin-top:auto;padding:14px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;line-height:1.65}
    .side-note strong{display:block;color:var(--ink);font-size:12px;margin-bottom:4px}
    .main-area{margin-left:248px;min-height:100vh}
    .mobile-bar{display:none}
    .container{max-width:1280px;margin:0 auto;padding:0 54px}
    .page-header{padding:68px 0 34px}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:23px}
    .breadcrumb a:hover{color:var(--blue)}
    .breadcrumb .current{color:var(--blue-dark);font-weight:700}
    .category-head{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:36px 40px;display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:35px;align-items:center;position:relative;overflow:hidden}
    .category-head:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--blue)}
    .eyebrow{color:var(--copper);font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;margin-bottom:11px}
    .category-head p{color:var(--muted);max-width:710px;margin-bottom:0;font-size:16px}
    .category-index{border-left:1px solid var(--line);padding-left:27px}
    .index-number{font-size:55px;font-weight:800;line-height:1;color:var(--blue);letter-spacing:-.06em}
    .index-label{color:var(--muted);font-size:13px;margin-top:9px}
    .status-line{display:flex;align-items:center;gap:8px;color:var(--green);font-size:13px;margin-top:14px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:#67a99d}
    .filter-section{padding:20px 0 28px}
    .filter-bar{background:var(--surface-soft);border:1px solid var(--line);border-radius:12px;padding:15px 17px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
    .filter-label{font-weight:800;color:var(--blue-dark);font-size:13px;margin-right:4px}
    .filter-bar select,.filter-bar input{height:43px;border:1px solid #cbdbe7;border-radius:7px;background:#fff;color:var(--ink);padding:0 12px;margin:0;min-width:145px}
    .filter-bar input{min-width:210px}
    .filter-button{height:43px;border:0;border-radius:7px;background:var(--blue);color:#fff;padding:0 18px;font-weight:750;cursor:pointer}
    .filter-button:hover{background:var(--blue-dark);box-shadow:0 7px 16px rgba(40,91,131,.18)}
    .content-section{padding:23px 0 84px}
    .content-layout{display:grid;grid-template-columns:205px minmax(0,1fr);gap:38px}
    .index-panel{align-self:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:21px;box-shadow:var(--shadow);position:sticky;top:25px}
    .index-panel h3{font-size:16px;margin-bottom:15px}
    .index-panel a{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
    .index-panel a:last-child{border-bottom:0}
    .index-panel a:hover,.index-panel a.active{color:var(--blue);font-weight:750}
    .count{color:#95a5b1;font-size:11px}
    .list-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:17px}
    .list-head h2{margin-bottom:0}
    .list-head p{color:var(--muted);font-size:13px;margin:0}
    .content-list{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:164px minmax(0,1fr) auto;gap:23px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:15px;box-shadow:var(--shadow);transition:.22s ease}
    .content-item:hover{transform:translateY(-3px);border-color:#b9d2e4;box-shadow:var(--shadow-hover)}
    .cover{aspect-ratio:16/10;border-radius:10px;background:#dcecf8;position:relative;overflow:hidden}
    .cover:before{content:"";position:absolute;inset:17px 22px;border:1px solid rgba(40,91,131,.23);border-radius:8px}
    .cover:after{content:"91";position:absolute;right:13px;bottom:7px;color:rgba(40,91,131,.35);font-size:25px;font-weight:800}
    .item-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:7px}
    .label{display:inline-block;background:var(--blue-soft);color:var(--blue-dark);border-radius:5px;padding:4px 8px;font-size:11px;font-weight:750}
    .label.warm{background:#f5e9e1;color:#925b3d}
    .content-item h3{margin:0 0 6px;font-size:18px}
    .content-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .item-time{display:block;color:#8b9aa6;font-size:12px;margin-top:8px}
    .item-action{white-space:nowrap}
    .small-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #bdd2e2;color:var(--blue-dark);background:#f5f9fc;border-radius:7px;padding:9px 13px;font-size:13px;font-weight:750}
    .small-button:hover{background:var(--blue);border-color:var(--blue);color:#fff}
    .related{padding:70px 0;background:var(--surface-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .related-row{display:flex;gap:12px;flex-wrap:wrap}
    .related-link{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 16px;color:var(--blue-dark);font-weight:700}
    .related-link:hover{border-color:#a9c6da;box-shadow:var(--shadow)}
    .related-link span{color:var(--muted);font-size:12px;font-weight:500}
    .faq-section{padding:80px 0}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px}
    .faq-intro p{color:var(--muted);max-width:300px}
    .accordion{margin:0;background:transparent}
    .accordion-item{border:0;background:var(--surface)}
    .accordion-title{border:0!important;border-bottom:1px solid var(--line)!important;color:var(--ink)!important;font-weight:750;padding:20px 38px 20px 0!important}
    .accordion-title:hover{background:transparent!important;color:var(--blue)!important}
    .accordion-content{border:0!important;background:transparent;color:var(--muted);padding:0 35px 18px 0!important;font-size:14px}
    .cta-section{padding:0 0 86px}
    .cta-panel{background:var(--blue-dark);color:#fff;border-radius:18px;padding:34px 39px;display:flex;justify-content:space-between;align-items:center;gap:28px;box-shadow:var(--shadow)}
    .cta-panel h2{color:#fff;margin-bottom:8px}
    .cta-panel p{color:#d4e3ed;margin:0;max-width:650px}
    .cta-panel .button{background:#fff!important;color:var(--blue-dark)!important;white-space:nowrap}
    .cta-panel .button:hover{background:var(--blue-soft)!important}
    footer{padding:36px 0 28px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
    .footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
    .footer-brand{font-weight:800;color:var(--ink);font-size:15px}
    .footer-links{display:flex;gap:19px;flex-wrap:wrap}
    .footer-links a:hover{color:var(--blue)}
    .footer-copy{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    @media(max-width:1199px){
      .side-nav{width:220px;padding-left:18px;padding-right:18px}
      .main-area{margin-left:220px}
      .container{padding-left:35px;padding-right:35px}
      .content-layout{grid-template-columns:180px minmax(0,1fr);gap:25px}
      .content-item{grid-template-columns:140px minmax(0,1fr) auto;gap:16px}
    }
    @media(max-width:767px){
      .side-nav{display:none}
      .main-area{margin-left:0}
      .mobile-bar{height:67px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:#fbfdff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
      .mobile-brand{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:800}
      .mobile-brand .brand-mark{width:29px;height:29px;flex-basis:29px;border-radius:8px}
      .mobile-brand .brand-mark:after{width:11px;height:11px;top:7px;left:7px}
      .menu-button{min-width:44px;min-height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;color:var(--blue);font-size:21px;cursor:pointer}
      .mobile-menu{display:none;background:#fbfdff;border-bottom:1px solid var(--line);padding:12px 18px}
      .mobile-menu.open{display:block}
      .mobile-menu .main-nav a{display:block}
      .container{padding-left:18px;padding-right:18px}
      .page-header{padding:37px 0 20px}
      .category-head{grid-template-columns:1fr;padding:28px 25px}
      .category-head p{font-size:15px}
      .category-index{border-left:0;border-top:1px solid var(--line);padding:18px 0 0}
      .index-number{font-size:43px}
      .filter-section{padding-top:10px}
      .filter-bar{align-items:stretch}
      .filter-label{width:100%}
      .filter-bar select,.filter-bar input,.filter-button{width:100%;min-width:0}
      .content-section{padding-bottom:58px}
      .content-layout{display:block}
      .index-panel{position:static;margin-bottom:29px}
      .list-head{display:block}
      .list-head p{margin-top:5px}
      .content-item{grid-template-columns:102px minmax(0,1fr);gap:14px;padding:12px}
      .item-action{grid-column:2;grid-row:2}
      .content-item h3{font-size:16px}
      .content-item p{font-size:12px}
      .related,.faq-section{padding:55px 0}
      .faq-grid{display:block}
      .faq-intro{margin-bottom:22px}
      .faq-intro p{max-width:none}
      .cta-section{padding-bottom:58px}
      .cta-panel{display:block;padding:27px 23px}
      .cta-panel .button{margin-top:20px!important;width:100%}
      .footer-grid{display:block}
      .footer-links{margin-top:16px;gap:12px 18px}
      .footer-copy{display:block}
      .footer-copy span{display:block;margin-top:7px}
    }