/* roulang page: index */
:root{
            --ink:#171827;
            --muted:#74758a;
            --paper:#fbfbfe;
            --panel:#ffffff;
            --line:#e9e8f1;
            --violet:#6d4aff;
            --violet-2:#a992ff;
            --pink:#ef6b9a;
            --dark:#202039;
            --soft:#f1efff;
            --radius:24px;
            --shadow:0 18px 50px rgba(45,35,94,.10);
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(1160px,calc(100% - 40px));margin:auto}
        .site-header{position:relative;background:rgba(251,251,254,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(18px);z-index:5}
        .brand-row{display:flex;justify-content:space-between;align-items:center;padding:22px 0 16px}
        .brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.04em;font-size:1.2rem}
        .brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--violet),var(--pink));box-shadow:0 8px 20px rgba(109,74,255,.25)}
        .brand small{display:block;color:var(--muted);font-weight:500;font-size:.69rem;letter-spacing:.08em}
        .quick-links{display:flex;gap:10px}
        .quick-link{border:1px solid var(--line);padding:8px 14px;border-radius:99px;color:var(--muted);font-size:.86rem;background:#fff}
        .quick-link:hover{border-color:var(--violet);color:var(--violet);transform:translateY(-2px)}
        .icon-nav{display:flex;gap:10px;padding:0 0 18px;overflow-x:auto}
        .nav-item{min-width:120px;display:flex;align-items:center;gap:10px;padding:12px 15px;border:1px solid transparent;border-radius:16px;color:var(--muted);font-size:.9rem;white-space:nowrap}
        .nav-item svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8}
        .nav-item:hover,.nav-item.active{color:var(--violet);background:var(--soft);border-color:#dcd5ff}
        .nav-item.active{box-shadow:inset 0 -2px 0 var(--violet)}
        .hero{padding:72px 0 52px;background:radial-gradient(circle at 78% 25%,#eee9ff 0,transparent 34%),radial-gradient(circle at 12% 30%,#ffeaf2 0,transparent 28%)}
        .hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-weight:800;font-size:.84rem;letter-spacing:.08em}
        .eyebrow:before{content:"";width:26px;height:3px;border-radius:4px;background:linear-gradient(90deg,var(--violet),var(--pink))}
        h1{font-size:clamp(2.55rem,5vw,5rem);line-height:1.12;letter-spacing:-.07em;margin:18px 0 22px;max-width:700px}
        .gradient-text{background:linear-gradient(100deg,var(--violet),var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}
        .hero-copy{font-size:1.08rem;color:var(--muted);max-width:650px;margin-bottom:28px}
        .actions{display:flex;gap:12px;flex-wrap:wrap}
        .button-main,.button-soft{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:13px 21px;font-weight:800}
        .button-main{color:#fff;background:var(--dark);box-shadow:0 12px 25px rgba(32,32,57,.18)}
        .button-main:hover{background:var(--violet);transform:translateY(-2px)}
        .button-soft{color:var(--violet);background:#fff;border:1px solid #ded9fb}
        .button-soft:hover{background:var(--soft);border-color:var(--violet)}
        .hero-note{display:flex;gap:12px;align-items:center;margin-top:24px;color:var(--muted);font-size:.85rem}
        .status-dot{width:9px;height:9px;border-radius:50%;background:#55c695;box-shadow:0 0 0 5px #dff7ec}
        .preview{position:relative;min-height:370px;border-radius:32px;padding:26px;background:var(--dark);color:#fff;box-shadow:var(--shadow);overflow:hidden}
        .preview:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;right:-70px;top:-70px;background:linear-gradient(135deg,var(--violet),var(--pink));opacity:.7}
        .preview-top,.preview-body{position:relative;z-index:1}
        .preview-top{display:flex;justify-content:space-between;color:#c6c4d9;font-size:.78rem}
        .cover{height:170px;margin:30px 0 22px;border-radius:20px;background:linear-gradient(135deg,#5843bb,#e277a5);display:grid;place-items:center;color:#fff;font-size:2.7rem}
        .preview h3{font-size:1.35rem;margin:0 0 10px}
        .badges{display:flex;flex-wrap:wrap;gap:8px}
        .badge{display:inline-flex;align-items:center;border-radius:99px;padding:5px 10px;background:#f0edff;color:var(--violet);font-size:.75rem;font-weight:800}
        .badge.dark{background:rgba(255,255,255,.12);color:#eee}
        section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
        .section-kicker{color:var(--pink);font-size:.78rem;font-weight:900;letter-spacing:.12em}
        h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.2;letter-spacing:-.05em;margin:7px 0 0}
        .section-intro{max-width:510px;color:var(--muted);margin:0}
        .filter-panel{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
        .issue-list{display:flex;flex-wrap:wrap;align-content:flex-start;gap:10px;padding:8px}
        .issue{padding:11px 16px;border-radius:12px;background:#faf9ff;border:1px solid #e7e3ff;color:#57546e;font-size:.9rem}
        .issue strong{color:var(--violet)}
        .filter-box{padding:22px;border-radius:18px;background:linear-gradient(135deg,#f4f1ff,#fff1f6)}
        .filter-box h3{margin:0 0 14px;font-size:1rem}
        .search-line{display:flex;gap:8px}
        .search-line input{min-width:0;flex:1;border:1px solid #ded9f4;border-radius:12px;padding:10px 12px;background:#fff;outline:none}
        .search-line input:focus{border-color:var(--violet);box-shadow:0 0 0 3px #e9e4ff}
        .search-line button{border-radius:12px;background:var(--violet);color:#fff;padding:0 16px}
        .search-line button:hover{background:var(--dark)}
        .topic-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:22px}
        .topic-index{padding:26px;border-radius:var(--radius);background:var(--dark);color:#fff}
        .topic-index h3{margin-top:0}
        .topic-index p{color:#c9c7d9;font-size:.92rem}
        .index-link{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14);color:#e7e5f2}
        .index-link:hover{color:#fff;padding-left:5px}
        .topic-feature{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .topic-card{min-height:230px;padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}
        .topic-card.large{grid-row:span 2;background:linear-gradient(145deg,#fff,#f1eeff)}
        .topic-card:before{content:"";display:block;height:90px;margin:-22px -22px 18px;background:linear-gradient(135deg,#ede9ff,#ffdfea)}
        .topic-card.large:before{height:170px;background:linear-gradient(135deg,#5441ad,#e579a7)}
        .topic-card h3{margin:0 0 8px;font-size:1.18rem}
        .topic-card p{margin:0;color:var(--muted);font-size:.88rem}
        .metric-strip{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:22px;overflow:hidden}
        .metric{padding:24px;background:#fff}
        .metric b{display:block;font-size:1.7rem;color:var(--violet);line-height:1.3}
        .metric span{font-size:.85rem;color:var(--muted)}
        .feedback{background:#f2efff}
        .feedback-row{display:flex;gap:18px;overflow-x:auto;padding-bottom:8px}
        .quote{min-width:280px;flex:1;background:#fff;border:1px solid #e5e0ff;border-radius:20px;padding:22px}
        .quote p{margin:0 0 15px;font-weight:700;line-height:1.65}
        .quote small{color:var(--muted)}
        .info-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
        .info-box{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
        .info-box h3{margin-top:0}
        .info-list{list-style:none;margin:0;padding:0}
        .info-list li{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:.92rem}
        .info-list li:last-child{border-bottom:0}
        .info-list a:hover{color:var(--violet)}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}
        summary{font-weight:800;cursor:pointer;list-style:none}
        summary::-webkit-details-marker{display:none}
        details p{color:var(--muted);font-size:.9rem;margin:12px 0 0}
        .cta{padding:56px 0;background:var(--dark);color:#fff}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta h2{max-width:620px}
        .cta p{color:#c9c7d9;max-width:620px}
        .site-footer{padding:36px 0 24px;background:#171725;color:#c8c6d6}
        .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start}
        .footer-brand{color:#fff;font-weight:900;font-size:1.12rem}
        .footer-links{display:flex;gap:20px;flex-wrap:wrap;font-size:.86rem}
        .footer-links a:hover{color:#fff}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:.78rem;color:#8e8da0}
        .age-modal{position:fixed;inset:0;background:rgba(17,16,31,.76);display:none;place-items:center;padding:20px;z-index:20}
        .age-modal.show{display:grid}
        .age-card{max-width:470px;background:#fff;border-radius:24px;padding:32px;box-shadow:0 25px 80px rgba(0,0,0,.25)}
        .age-card h2{margin-top:0}
        .age-card p{color:var(--muted);font-size:.92rem}
        .age-actions{display:flex;gap:10px;margin-top:22px}
        .age-actions button{flex:1;padding:12px;border-radius:12px;font-weight:800}
        .confirm{background:var(--violet);color:#fff}
        .cancel{background:#f0eff5;color:var(--muted)}
        @media(max-width:900px){
            .hero-layout,.topic-layout,.info-grid{grid-template-columns:1fr}
            .hero{padding-top:48px}
            .preview{min-height:320px}
            .metric-strip{grid-template-columns:1fr 1fr}
        }
        @media(max-width:640px){
            .container{width:min(100% - 28px,1160px)}
            .brand-row{align-items:flex-start}.quick-links{display:none}
            .icon-nav{margin:0 -14px;padding-left:14px;padding-right:14px}
            .nav-item{min-width:108px}
            h1{font-size:2.55rem}
            section{padding:58px 0}
            .section-head,.cta-inner,.footer-top,.footer-bottom{display:block}
            .section-intro{margin-top:12px}
            .filter-panel,.topic-feature,.faq-grid{grid-template-columns:1fr}
            .topic-card.large{grid-row:auto}
            .metric-strip{grid-template-columns:1fr 1fr}
            .metric{padding:18px 14px}
            .metric b{font-size:1.35rem}
            .cta .button-main{margin-top:15px}
            .footer-links{margin-top:18px}
            .footer-bottom span{display:block;margin-top:8px}
        }

/* roulang page: category2 */
:root{
      --ink:#171827;
      --muted:#74758a;
      --paper:#fbfbfe;
      --panel:#fff;
      --line:#e9e8f1;
      --violet:#6d4aff;
      --violet-2:#a992ff;
      --pink:#ef6b9a;
      --dark:#202039;
      --soft:#f1efff;
      --radius:24px;
      --shadow:0 18px 50px rgba(45,35,94,.10);
      --shadow-lg:0 25px 70px rgba(45,35,94,.16);
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.25;letter-spacing:-.045em}
    h1{font-size:clamp(2.2rem,5vw,4.5rem);margin-bottom:20px}
    h2{font-size:clamp(1.7rem,3vw,2.6rem);margin-bottom:12px}
    h3{font-size:1.18rem;margin-bottom:8px}
    .container{width:min(1160px,calc(100% - 40px));margin:auto}
    .site-header{position:relative;background:rgba(251,251,254,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(18px);z-index:5}
    .brand-row{display:flex;justify-content:space-between;align-items:center;padding:22px 0 16px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.04em;font-size:1.2rem}
    .brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--violet),var(--pink));box-shadow:0 8px 20px rgba(109,74,255,.25);font-size:.82rem}
    .brand small{display:block;color:var(--muted);font-weight:500;font-size:.69rem;letter-spacing:.08em}
    .quick-links{display:flex;gap:10px;align-items:center}
    .quick-link{border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--muted);padding:8px 12px;font-size:.8rem}
    .quick-link:hover,.quick-link:focus{color:var(--violet);border-color:#dcd5ff;background:var(--soft);outline:none}
    .icon-nav{display:flex;gap:10px;padding:0 0 18px;overflow-x:auto}
    .nav-item{min-width:120px;display:flex;align-items:center;gap:10px;padding:12px 15px;border:1px solid transparent;border-radius:16px;color:var(--muted);font-size:.9rem;white-space:nowrap}
    .nav-item svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8}
    .nav-item:hover,.nav-item.active{color:var(--violet);background:var(--soft);border-color:#dcd5ff}
    .nav-item.active{box-shadow:inset 0 -2px 0 var(--violet)}
    .hero{padding:72px 0 60px;background:radial-gradient(circle at 80% 22%,#eee9ff 0,transparent 34%),radial-gradient(circle at 10% 30%,#ffeaf2 0,transparent 28%)}
    .hero-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-weight:800;font-size:.84rem;letter-spacing:.08em;margin-bottom:17px}
    .eyebrow:before{content:"";width:26px;height:3px;border-radius:4px;background:linear-gradient(90deg,var(--violet),var(--pink))}
    .hero-copy{font-size:1.08rem;color:var(--muted);max-width:640px;margin-bottom:27px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .button-main,.button-soft{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:13px 21px;font-weight:800}
    .button-main{color:#fff;background:var(--dark);box-shadow:0 12px 25px rgba(32,32,57,.18)}
    .button-main:hover,.button-main:focus{color:#fff;background:var(--violet);transform:translateY(-2px);outline:3px solid #dfd8ff}
    .button-soft{color:var(--violet);background:#fff;border:1px solid #ded9fb}
    .button-soft:hover,.button-soft:focus{background:var(--soft);border-color:var(--violet);outline:none}
    .hero-note{display:flex;gap:12px;align-items:center;margin-top:24px;color:var(--muted);font-size:.85rem}
    .hero-note strong{color:var(--ink)}
    .hero-card{position:relative;min-height:360px;padding:28px;border-radius:30px;overflow:hidden;background:linear-gradient(145deg,#5441ad,#e579a7);box-shadow:var(--shadow-lg);color:#fff}
    .hero-card:after{content:"";position:absolute;width:220px;height:220px;right:-60px;bottom:-80px;border:1px solid rgba(255,255,255,.3);border-radius:50%;box-shadow:0 0 0 28px rgba(255,255,255,.07),0 0 0 58px rgba(255,255,255,.05)}
    .card-glow{position:absolute;width:180px;height:180px;left:-65px;top:-75px;border-radius:50%;background:rgba(255,255,255,.12);filter:blur(3px)}
    .hero-card-content{position:relative;z-index:1}
    .preview-label{font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;opacity:.76}
    .hero-card h2{font-size:2rem;max-width:360px;margin:45px 0 24px}
    .badges{display:flex;flex-wrap:wrap;gap:8px}
    .badge{display:inline-flex;align-items:center;border-radius:99px;padding:5px 10px;background:#f0edff;color:var(--violet);font-size:.75rem;font-weight:800}
    .badge.dark{background:rgba(255,255,255,.14);color:#fff}
    .age-strip{display:flex;align-items:center;gap:12px;margin-top:25px;padding-top:18px;border-top:1px solid rgba(255,255,255,.25);font-size:.82rem;color:rgba(255,255,255,.8)}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--pink);font-size:.78rem;font-weight:900;letter-spacing:.12em}
    .section-intro{max-width:510px;color:var(--muted);margin:0}
    .dark-section{background:var(--dark);color:#fff}
    .dark-section .section-intro{color:#c9c7d9}
    .filter-shell{display:grid;grid-template-columns:.76fr 1.24fr;gap:22px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .issue-list{display:flex;flex-wrap:wrap;align-content:flex-start;gap:10px;padding:8px}
    .issue{padding:8px 13px;border-radius:99px;background:#faf9ff;border:1px solid var(--line);color:var(--muted);font-size:.85rem}
    .issue.active{background:var(--soft);border-color:#d4caff;color:var(--violet);font-weight:800}
    .search-panel{padding:22px;border-radius:20px;background:linear-gradient(135deg,#f6f3ff,#fff4f7)}
    .search-panel h3{margin-bottom:15px}
    .search-line{display:flex;gap:8px}
    .search-line input{min-width:0;flex:1;border:1px solid #ded9f4;border-radius:12px;padding:10px 12px;background:#fff;outline:none}
    .search-line input:focus{border-color:var(--violet);box-shadow:0 0 0 3px #e9e4ff}
    .search-line button{border-radius:12px;background:var(--violet);color:#fff;padding:0 16px}
    .search-line button:hover{background:var(--dark)}
    .search-hint{font-size:.8rem;color:var(--muted);margin:12px 0 0}
    .index-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:22px;align-items:stretch}
    .index-menu{padding:25px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
    .index-menu p{color:var(--muted);font-size:.9rem}
    .index-link{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);font-weight:800}
    .index-link:last-child{border-bottom:0}
    .index-link span{color:var(--violet);font-size:1.2rem}
    .index-link:hover{color:var(--violet);padding-left:6px}
    .content-preview{position:relative;min-height:315px;padding:30px;border-radius:var(--radius);overflow:hidden;color:#fff;background:linear-gradient(120deg,#252342,#6d4aff)}
    .content-preview:before{content:"";position:absolute;inset:auto -30px -100px auto;width:310px;height:310px;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 0 0 25px rgba(255,255,255,.05),0 0 0 55px rgba(255,255,255,.04)}
    .content-preview > *{position:relative;z-index:1}
    .preview-number{font-size:4rem;line-height:1;font-weight:900;opacity:.92}
    .content-preview h3{font-size:1.7rem;margin:35px 0 8px}
    .content-preview p{max-width:460px;color:#d9d6ef}
    .data-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:30px;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--line)}
    .data-item{padding:23px;background:#fff}
    .data-value{display:block;color:var(--violet);font-size:1.45rem;font-weight:900}
    .data-label{display:block;color:var(--muted);font-size:.8rem;margin-top:3px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:22px}
    .timeline-item{padding:20px;border-radius:18px;background:#faf9ff;border:1px solid var(--line)}
    .timeline-item b{display:block;color:var(--violet);font-size:.8rem;margin-bottom:7px}
    .timeline-item p{margin:0;color:var(--muted);font-size:.88rem}
    .feedback-row{display:flex;gap:18px;overflow-x:auto;padding-bottom:8px}
    .feedback{flex:0 0 330px;padding:25px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
    .feedback p{font-size:1.03rem;margin:16px 0;color:var(--ink)}
    .feedback small{color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .faq-item{padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .faq-item h3{font-size:1rem;margin-bottom:8px}
    .faq-item p{margin:0;color:var(--muted);font-size:.88rem}
    .cta{padding:58px 0;background:var(--dark);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{max-width:620px}
    .cta p{color:#c9c7d9;max-width:620px}
    .site-footer{padding:36px 0 24px;background:#171725;color:#c8c6d6}
    .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start}
    .footer-brand{color:#fff;font-weight:900;font-size:1.12rem}
    .footer-links{display:flex;gap:20px;flex-wrap:wrap;font-size:.86rem}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:.78rem;color:#8e8da0}
    .notice{padding:18px 20px;background:#fff8fb;border:1px solid #f3d9e4;border-radius:18px;color:#7e5365;font-size:.88rem}
    .modal-backdrop{display:none;position:fixed;inset:0;z-index:20;align-items:center;justify-content:center;padding:20px;background:rgba(22,20,38,.72)}
    .modal-backdrop.show{display:flex}
    .age-card{max-width:470px;background:#fff;border-radius:24px;padding:32px;box-shadow:0 25px 80px rgba(0,0,0,.25)}
    .age-card h2{margin-top:0}
    .age-card p{color:var(--muted);font-size:.92rem}
    .age-actions{display:flex;gap:10px}
    .age-actions button{flex:1;padding:12px;border-radius:12px;font-weight:800}
    .confirm{background:var(--violet);color:#fff}
    .cancel{background:var(--soft);color:var(--violet)}
    :focus-visible{outline:3px solid #b9aaff;outline-offset:3px}
    @media(max-width:900px){
      .hero-layout,.index-layout,.filter-shell{grid-template-columns:1fr}
      .hero{padding-top:52px}
      .timeline{grid-template-columns:1fr}
    }
    @media(max-width:680px){
      .container{width:min(100% - 28px,1160px)}
      .brand-row{align-items:flex-start}
      .quick-links{gap:6px}
      .quick-link{padding:7px 8px;font-size:.72rem}
      .icon-nav{margin:0 -14px;padding-left:14px;padding-right:14px}
      .nav-item{min-width:108px}
      section{padding:58px 0}
      .section-head,.cta-inner,.footer-top,.footer-bottom{display:block}
      .section-intro{margin-top:12px}
      .hero-card{min-height:310px}
      .hero-card h2{margin-top:35px;font-size:1.65rem}
      .data-row{grid-template-columns:1fr 1fr}
      .faq-grid{grid-template-columns:1fr}
      .footer-links{margin-top:22px;gap:12px}
      .footer-bottom span{display:block;margin-top:8px}
      .age-actions{flex-direction:column}
    }
    @media(max-width:420px){
      h1{font-size:2.35rem}
      .quick-links .quick-link:first-child{display:none}
      .hero-actions a{width:100%}
      .search-line{flex-direction:column}
      .search-line button{padding:11px}
    }

/* roulang page: category1 */
:root{
      --ink:#171827;
      --muted:#74758a;
      --paper:#fbfbfe;
      --panel:#ffffff;
      --line:#e9e8f1;
      --violet:#6d4aff;
      --violet-2:#a992ff;
      --pink:#ef6b9a;
      --dark:#202039;
      --soft:#f1efff;
      --radius:24px;
      --shadow:0 18px 50px rgba(45,35,94,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1160px,calc(100% - 40px));margin:auto}
    .site-header{position:relative;background:rgba(251,251,254,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(18px);z-index:5}
    .brand-row{display:flex;justify-content:space-between;align-items:center;padding:22px 0 16px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.04em;font-size:1.2rem}
    .brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--violet),var(--pink));box-shadow:0 8px 20px rgba(109,74,255,.25)}
    .brand small{display:block;color:var(--muted);font-weight:500;font-size:.69rem;letter-spacing:.08em}
    .quick-links{display:flex;gap:10px;align-items:center}
    .quick-link{padding:8px 12px;border:1px solid var(--line);border-radius:12px;color:var(--muted);background:#fff;font-size:.82rem}
    .quick-link:hover{color:var(--violet);border-color:#d7cffd;background:var(--soft)}
    .icon-nav{display:flex;gap:10px;padding:0 0 18px;overflow-x:auto}
    .nav-item{min-width:120px;display:flex;align-items:center;gap:10px;padding:12px 15px;border:1px solid transparent;border-radius:16px;color:var(--muted);font-size:.9rem;white-space:nowrap}
    .nav-item svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.8}
    .nav-item:hover,.nav-item.active{color:var(--violet);background:var(--soft);border-color:#dcd5ff}
    .nav-item.active{box-shadow:inset 0 -2px 0 var(--violet)}
    .page-hero{padding:72px 0 58px;background:radial-gradient(circle at 82% 20%,#eee9ff 0,transparent 34%),radial-gradient(circle at 10% 20%,#ffeaf2 0,transparent 28%)}
    .hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-weight:800;font-size:.84rem;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:3px;border-radius:4px;background:linear-gradient(90deg,var(--violet),var(--pink))}
    h1{font-size:clamp(2.25rem,5vw,4.35rem);line-height:1.13;letter-spacing:-.065em;margin:14px 0 20px}
    h2{font-size:clamp(1.65rem,3vw,2.45rem);line-height:1.25;letter-spacing:-.045em;margin:0 0 12px}
    h3{line-height:1.35}
    .hero-copy{font-size:1.06rem;color:var(--muted);max-width:650px;margin-bottom:28px}
    .button-main,.button-soft{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:13px 21px;font-weight:800}
    .button-main{color:#fff;background:var(--dark);box-shadow:0 12px 25px rgba(32,32,57,.18)}
    .button-main:hover{background:var(--violet);transform:translateY(-2px)}
    .button-soft{color:var(--violet);background:#fff;border:1px solid #ded9fb}
    .button-soft:hover{background:var(--soft);border-color:var(--violet)}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:12px;align-items:center;margin-top:24px;color:var(--muted);font-size:.85rem}
    .hero-note strong{color:var(--ink)}
    .hero-panel{min-height:360px;border-radius:30px;padding:24px;color:#fff;position:relative;overflow:hidden;background:linear-gradient(145deg,#332764,#a1547b);box-shadow:0 24px 60px rgba(66,44,113,.22)}
    .hero-panel:after{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-70px;bottom:-85px;background:rgba(255,255,255,.12)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}
    .panel-label{font-size:.78rem;color:#eee7ff;letter-spacing:.1em}
    .panel-number{font-size:2.6rem;font-weight:900;line-height:1}
    .panel-body{position:absolute;left:24px;right:24px;bottom:24px;z-index:1}
    .panel-body h3{font-size:1.5rem;margin:15px 0 8px}
    .panel-body p{color:#e5dfef;font-size:.9rem;margin:0 0 18px}
    .badges{display:flex;flex-wrap:wrap;gap:8px}
    .badge{display:inline-flex;align-items:center;border-radius:99px;padding:5px 10px;background:#f0edff;color:var(--violet);font-size:.75rem;font-weight:800}
    .badge.dark{background:rgba(255,255,255,.14);color:#eee}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--pink);font-size:.78rem;font-weight:900;letter-spacing:.12em}
    .section-intro{max-width:540px;color:var(--muted);margin:0}
    .filter-shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .filter-side{padding:10px 8px}
    .filter-side h3{margin:0 0 10px}
    .filter-side p{color:var(--muted);font-size:.9rem}
    .issue-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
    .issue{padding:8px 12px;border-radius:12px;background:var(--soft);color:var(--violet);font-size:.82rem;font-weight:700}
    .search-box{padding:22px;border-radius:20px;background:#faf9ff;border:1px solid #e4defc}
    .search-line{display:flex;gap:8px;margin-bottom:18px}
    .search-line input{min-width:0;flex:1;border:1px solid #ded9f4;border-radius:12px;padding:10px 12px;background:#fff;outline:none}
    .search-line input:focus{border-color:var(--violet);box-shadow:0 0 0 3px #e9e4ff}
    .search-line button{border-radius:12px;background:var(--violet);color:#fff;padding:0 16px}
    .search-line button:hover{background:var(--dark)}
    .filter-row{display:flex;gap:8px;flex-wrap:wrap}
    .filter-chip{border:1px solid var(--line);background:#fff;color:var(--muted);padding:7px 12px;border-radius:99px;font-size:.8rem}
    .filter-chip:hover,.filter-chip.selected{color:var(--violet);border-color:#cfc5ff;background:var(--soft)}
    .topic-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:20px}
    .index-card,.content-card,.feedback-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(45,35,94,.05)}
    .index-card{padding:24px}
    .index-card ul{list-style:none;margin:18px 0 0;padding:0}
    .index-card li{border-top:1px solid var(--line);padding:14px 0}
    .index-card a{display:flex;justify-content:space-between;gap:12px}
    .index-card a:hover{color:var(--violet);padding-left:5px}
    .content-card{padding:24px;display:grid;grid-template-columns:.85fr 1.15fr;gap:22px;align-items:center;background:linear-gradient(145deg,#fff,#f4f1ff)}
    .cover{min-height:230px;border-radius:20px;background:linear-gradient(145deg,#4c3a9b,#ee7ea2);position:relative;overflow:hidden}
    .cover:before,.cover:after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14)}
    .cover:before{width:180px;height:180px;top:-45px;right:-40px}.cover:after{width:130px;height:130px;bottom:-30px;left:-25px}
    .cover-text{position:absolute;left:20px;bottom:18px;color:#fff;font-weight:900;z-index:1}
    .content-card h3{font-size:1.5rem;margin:14px 0 10px}
    .content-card p{color:var(--muted);font-size:.92rem}
    .mini-list{list-style:none;margin:18px 0;padding:0}
    .mini-list li{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:.88rem}
    .mini-list b{color:var(--violet)}
    .data-band{background:var(--dark);color:#fff;border-radius:var(--radius);padding:30px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .data-item{border-left:1px solid rgba(255,255,255,.16);padding-left:18px}
    .data-item:first-child{border-left:0}
    .data-item strong{display:block;font-size:1.6rem;color:#fff}
    .data-item span{color:#c9c7d9;font-size:.83rem}
    .feedback-row{display:flex;gap:18px;overflow-x:auto;padding-bottom:8px}
    .feedback-card{min-width:300px;padding:24px}
    .feedback-card p{font-size:1rem;color:var(--muted);margin:14px 0 18px}
    .feedback-card small{color:var(--violet);font-weight:800}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .faq-item{padding:21px 23px}
    .faq-item h3{font-size:1rem;margin:0 0 8px}
    .faq-item p{color:var(--muted);font-size:.88rem;margin:0}
    .cta{padding:56px 0;background:var(--dark);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{max-width:620px}
    .cta p{color:#c9c7d9;max-width:620px}
    .site-footer{padding:36px 0 24px;background:#171725;color:#c8c6d6}
    .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start}
    .footer-brand{color:#fff;font-weight:900;font-size:1.12rem}
    .footer-links{display:flex;gap:20px;flex-wrap:wrap;font-size:.86rem}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:.78rem;color:#8e8da0}
    .modal-backdrop{display:none;position:fixed;inset:0;background:rgba(19,18,34,.72);z-index:20;align-items:center;justify-content:center;padding:20px}
    .modal-backdrop.show{display:flex}
    .age-card{max-width:470px;background:#fff;border-radius:24px;padding:32px;box-shadow:0 25px 80px rgba(0,0,0,.25)}
    .age-card h2{margin-top:0}
    .age-card p{color:var(--muted);font-size:.92rem}
    .age-actions{display:flex;gap:10px;margin-top:20px}
    .age-actions button{flex:1;padding:12px;border-radius:12px;font-weight:800}
    .age-confirm{background:var(--violet);color:#fff}.age-leave{background:#f1eff5;color:var(--muted)}
    :focus-visible{outline:3px solid #b9aaff;outline-offset:3px}
    @media(max-width:900px){
      .hero-layout,.topic-layout,.filter-shell{grid-template-columns:1fr}
      .content-card{grid-template-columns:1fr 1fr}
      .data-band{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1160px)}
      .brand-row{align-items:flex-start}
      .quick-links{gap:5px}.quick-link{font-size:.72rem;padding:7px 8px}
      .quick-link:nth-child(3){display:none}
      .icon-nav{margin:0 -14px;padding-left:14px;padding-right:14px}
      .nav-item{min-width:108px}
      .page-hero{padding:48px 0 42px}
      section{padding:58px 0}
      .section-head,.cta-inner,.footer-top,.footer-bottom{display:block}
      .section-intro{margin-top:12px}
      .content-card,.faq-grid{grid-template-columns:1fr}
      .data-band{grid-template-columns:1fr 1fr;padding:22px}
      .data-item{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding:12px 0 0}
      .data-item:nth-child(-n+2){border-top:0}
      .footer-links{margin-top:20px;gap:12px}
      .footer-bottom span{display:block;margin-top:10px}
    }