/* roulang page: index */
:root{
      --blue:#506b86;
      --blue-deep:#324a63;
      --blue-soft:#eaf1f6;
      --plum:#85566d;
      --plum-soft:#f4e9ee;
      --ink:#243544;
      --muted:#71808d;
      --paper:#f8fafb;
      --white:#fff;
      --line:#dce5eb;
      --green:#648f89;
      --amber:#ae8052;
      --radius:16px;
      --shadow:0 14px 40px rgba(43,68,88,.08);
      --shadow-hover:0 20px 48px rgba(43,68,88,.14);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    .container{max-width:1180px}
    .site-header{background:rgba(248,250,251,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}
    .masthead{min-height:86px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:15px;white-space:nowrap}
    .brand-mark{width:42px;height:42px;border:1px solid var(--blue);color:var(--blue);display:grid;place-items:center;font-size:12px;letter-spacing:1px;border-radius:10px}
    .brand-name{font-size:22px;font-weight:760;letter-spacing:-.8px;color:var(--blue-deep)}
    .brand-note{font-size:11px;color:var(--plum);letter-spacing:2px;border-left:1px solid var(--line);padding-left:18px}
    .nav-rule{height:28px;width:1px;background:var(--line);margin-left:auto}
    .main-nav{display:flex;align-items:center;gap:7px}
    .main-nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:8px;transition:.25s ease}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}
    .header-age{font-size:12px;color:var(--green);border:1px solid #c8ddda;padding:5px 10px;border-radius:30px;white-space:nowrap}
    .hero{padding:84px 0 50px;background:linear-gradient(180deg,#eef4f7 0%,var(--paper) 100%);border-bottom:1px solid var(--line)}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(340px,.8fr);gap:58px;align-items:center}
    .eyebrow,.section-kicker{font-size:11px;color:var(--plum);font-weight:750;letter-spacing:2px;text-transform:uppercase}
    h1,h2,h3{color:var(--blue-deep);line-height:1.25;letter-spacing:-.7px}
    h1{font-size:clamp(38px,5vw,66px);font-weight:780;margin:18px 0 22px;max-width:720px}
    .hero-copy{font-size:17px;color:#536572;max-width:650px;margin-bottom:30px}
    .btn-main,.btn-soft{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:9px;font-size:14px;font-weight:700;transition:.25s ease}
    .btn-main{background:var(--blue);color:#fff;border:1px solid var(--blue)}
    .btn-main:hover,.btn-main:focus{background:var(--blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(80,107,134,.22)}
    .btn-soft{background:var(--white);color:var(--blue);border:1px solid #b8cbd8;margin-left:10px}
    .btn-soft:hover,.btn-soft:focus{background:var(--plum-soft);color:var(--plum);border-color:#d8b9c7}
    .hero-index{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:25px;box-shadow:var(--shadow);position:relative}
    .hero-index:before{content:"01";position:absolute;right:22px;top:18px;color:#d6e2e9;font-size:42px;font-weight:800}
    .index-title{font-size:13px;color:var(--muted);margin-bottom:22px}
    .progress-ring{display:flex;align-items:center;gap:20px;padding-bottom:22px;border-bottom:1px solid var(--line)}
    .ring{width:104px;height:104px;border-radius:50%;background:conic-gradient(var(--plum) 0 72%,#eadfe4 72% 100%);display:grid;place-items:center;flex:none}
    .ring-inner{width:78px;height:78px;border-radius:50%;background:var(--white);display:grid;place-items:center;color:var(--plum);font-weight:800;font-size:20px}
    .index-label{font-size:13px;color:var(--muted);margin:0}.index-value{font-size:22px;font-weight:750;color:var(--blue-deep);margin:2px 0 3px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:20px}
    .hero-stat strong{display:block;font-size:20px;color:var(--blue)}.hero-stat span{font-size:11px;color:var(--muted)}
    .channel-strip{margin-top:48px;display:flex;gap:10px;align-items:center;overflow:auto;padding-bottom:5px}
    .channel-strip span{white-space:nowrap;border:1px solid var(--line);background:var(--white);border-radius:30px;padding:7px 15px;font-size:12px;color:var(--muted)}
    .channel-strip span:first-child{color:var(--plum);border-color:#d9bdca;background:var(--plum-soft)}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:32px}
    .section-head h2{font-size:32px;margin:10px 0 0}
    .section-head p{color:var(--muted);max-width:540px;margin:0;font-size:14px}
    .collection-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}
    .feature-card,.topic-card,.related-card,.review-card,.contact-panel,.faq-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s ease}
    .feature-card:hover,.topic-card:hover,.related-card:hover,.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#b9ccd8}
    .feature-card{padding:32px;min-height:255px;position:relative;overflow:hidden}
    .feature-card:after{content:"";position:absolute;width:210px;height:210px;border-radius:50%;background:var(--blue-soft);right:-70px;bottom:-90px}
    .number{font-size:12px;color:var(--plum);font-weight:800;letter-spacing:1px}
    .feature-card h3{font-size:25px;margin:17px 0 12px;max-width:460px}
    .feature-card p,.topic-card p,.related-card p{font-size:14px;color:var(--muted);max-width:520px}
    .topic-stack{display:grid;gap:20px}
    .topic-card{padding:24px;display:flex;justify-content:space-between;gap:16px;align-items:start}
    .topic-card h3{font-size:18px;margin:10px 0 7px}
    .topic-arrow{color:var(--plum);font-size:22px}
    .tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--plum-soft);color:var(--plum);font-size:11px;font-weight:700}
    .progress-section{background:#edf4f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .progress-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}
    .progress-layout h2{font-size:31px;margin:12px 0}
    .progress-layout p{color:var(--muted);font-size:14px}
    .milestone{padding:18px 0;border-bottom:1px solid #d4e0e6}
    .milestone:last-child{border-bottom:0}
    .milestone-line{display:flex;justify-content:space-between;font-size:13px;margin-bottom:8px}
    .milestone-line strong{color:var(--blue-deep)}.milestone-line span{color:var(--muted)}
    .bar{height:8px;background:#d8e3e9;border-radius:10px;overflow:hidden}.bar i{display:block;height:100%;background:var(--blue);border-radius:10px}
    .related-grid{display:grid;grid-template-columns:1fr 1fr 1.35fr;gap:18px}
    .related-card{padding:24px;min-height:220px}
    .related-card h3{font-size:20px;margin:17px 0 10px}
    .related-card.wide{background:var(--blue);color:#fff}.related-card.wide h3{color:#fff}.related-card.wide p{color:#dce8ef}.related-card.wide .tag{background:#e9d9e1;color:var(--plum)}
    .updates{display:grid;grid-template-columns:1.35fr .65fr;gap:28px}
    .update-list,.index-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .update-row{display:grid;grid-template-columns:70px 1fr auto;gap:18px;align-items:center;padding:19px 24px;border-bottom:1px solid var(--line)}
    .update-row:last-child{border-bottom:0}.update-date{font-size:12px;color:var(--muted)}.update-row h3{font-size:16px;margin:0 0 3px}.update-row p{font-size:12px;color:var(--muted);margin:0}.status{font-size:11px;color:var(--green);background:#edf6f4;padding:5px 9px;border-radius:5px}
    .index-panel{padding:25px}.index-panel h3{font-size:19px;margin:0 0 20px}.index-list{list-style:none;padding:0;margin:0}.index-list li{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px dashed var(--line);font-size:13px;color:var(--muted)}.index-list b{color:var(--plum);font-weight:700}
    .voices{background:#f4edf0}.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review-card{padding:24px;background:rgba(255,255,255,.85)}.review-card p{font-size:14px;color:#596875;margin:17px 0}.review-user{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.avatar{width:32px;height:32px;border-radius:50%;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);font-weight:700}
    .faq-wrap{padding:12px 24px}.accordion-item{border:0;border-bottom:1px solid var(--line)!important}.accordion-item:last-child{border-bottom:0!important}.accordion-button{padding:20px 5px;background:transparent!important;color:var(--blue-deep)!important;box-shadow:none!important;font-weight:700}.accordion-button:after{filter:none}.accordion-body{padding:0 5px 20px;color:var(--muted);font-size:14px}
    .contact-panel{padding:38px;background:var(--blue-soft);box-shadow:none;display:grid;grid-template-columns:.85fr 1.15fr;gap:45px}.contact-panel h2{font-size:30px;margin:10px 0 15px}.contact-panel p{font-size:14px;color:var(--muted)}.form-control,.form-select{border:1px solid #cbd9e1;border-radius:8px;padding:11px 13px;background:#fff}.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(80,107,134,.13)}.privacy-note{font-size:11px;color:var(--muted);margin-top:12px}
    .site-footer{padding:42px 0 25px;background:#e9f0f3;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start}.footer-brand{font-weight:750;color:var(--blue-deep);font-size:18px}.footer-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--plum)}.footer-bottom{border-top:1px solid #d0dde3;margin-top:30px;padding-top:18px;font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:18px}
    .age-layer{position:fixed;inset:0;background:rgba(31,47,59,.5);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}.age-box{max-width:470px;background:var(--white);border-radius:18px;padding:34px;box-shadow:0 25px 80px rgba(24,42,56,.25);text-align:center}.age-box h2{font-size:25px;margin:14px 0}.age-box p{font-size:14px;color:var(--muted)}.age-actions{display:flex;gap:10px;justify-content:center;margin-top:24px}
    @media(max-width:992px){.masthead{gap:15px}.brand-note,.nav-rule{display:none}.main-nav{margin-left:auto}.hero-grid,.progress-layout,.updates,.contact-panel{grid-template-columns:1fr}.hero{padding-top:60px}.collection-grid{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr 1fr}.contact-panel{gap:25px}}
    @media(max-width:768px){.masthead{min-height:72px}.brand-name{font-size:17px}.brand-mark{width:35px;height:35px;font-size:10px}.header-age{display:none}.main-nav{gap:0}.main-nav a{padding:8px 7px;font-size:12px}.hero{padding:52px 0 35px}h1{font-size:41px}.hero-copy{font-size:15px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:15px}.related-grid,.voice-grid{grid-template-columns:1fr}.update-row{grid-template-columns:58px 1fr}.update-row .status{display:none}.footer-top,.footer-bottom{display:block}.footer-links{margin-top:20px}.footer-bottom span{display:block;margin-top:8px}}
    @media(max-width:520px){.container{padding-left:20px;padding-right:20px}.brand-name{max-width:190px;white-space:normal;line-height:1.2}.main-nav a{font-size:11px;padding:7px 5px}.hero-index{padding:20px}.ring{width:88px;height:88px}.ring-inner{width:66px;height:66px}.hero-stats{gap:7px}.feature-card,.topic-card,.related-card{padding:21px}.contact-panel{padding:25px}.btn-main,.btn-soft{width:100%;margin:0 0 10px}.age-box{padding:26px 20px}.age-actions{display:block}.age-actions a,.age-actions button{width:100%;margin:0 0 10px}}

/* roulang page: category2 */
:root{
            --blue:#506b86;
            --blue-deep:#324a63;
            --blue-soft:#eaf1f6;
            --plum:#85566d;
            --plum-soft:#f4e9ee;
            --ink:#243544;
            --muted:#71808d;
            --paper:#f8fafb;
            --white:#fff;
            --line:#dce5eb;
            --green:#648f89;
            --amber:#ae8052;
            --radius:16px;
            --shadow:0 14px 40px rgba(43,68,88,.08);
            --shadow-hover:0 20px 48px rgba(43,68,88,.14);
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(133,86,109,.3);outline-offset:3px}
        img{max-width:100%;display:block}
        button,input,select,textarea{font:inherit}
        .container{max-width:1180px}
        .site-header{background:rgba(248,250,251,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}
        .masthead{min-height:76px;display:flex;align-items:center;gap:24px}
        .brand{display:flex;align-items:center;gap:15px;white-space:nowrap}
        .brand-mark{width:42px;height:42px;border:1px solid var(--blue);color:var(--blue);display:grid;place-items:center;font-size:12px;letter-spacing:1px;border-radius:10px}
        .brand-name{font-size:22px;font-weight:760;letter-spacing:-.8px;color:var(--blue-deep)}
        .brand-note{font-size:11px;color:var(--plum);letter-spacing:2px;border-left:1px solid var(--line);padding-left:18px}
        .nav-rule{height:28px;width:1px;background:var(--line);margin-left:auto}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:8px;transition:.25s ease}
        .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}
        .header-age{font-size:12px;color:var(--green);border:1px solid #c8ddda;padding:5px 10px;border-radius:30px;white-space:nowrap}
        .page-hero{padding:76px 0 58px;background:linear-gradient(180deg,#eef4f7 0%,var(--paper) 100%);border-bottom:1px solid var(--line)}
        .breadcrumb{font-size:12px;color:var(--muted);margin-bottom:28px}
        .breadcrumb a{color:var(--blue)}
        .hero-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:54px;align-items:end}
        .eyebrow,.section-kicker{font-size:11px;color:var(--plum);font-weight:750;letter-spacing:2px}
        h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-2px;color:var(--blue-deep);margin:13px 0 20px;font-weight:780}
        .hero-copy{font-size:17px;color:#536572;max-width:700px;margin:0}
        .hero-aside{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:25px;box-shadow:var(--shadow);position:relative}
        .hero-aside:before{content:"02";position:absolute;right:22px;top:14px;color:#d6e2e9;font-size:42px;font-weight:800}
        .aside-label{font-size:13px;color:var(--muted);margin-bottom:20px}
        .status-line{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px dashed var(--line);font-size:13px}
        .status-line:last-child{border-bottom:0}
        .status-line b{color:var(--blue)}
        .status-line span{color:var(--muted)}
        .section{padding:78px 0}
        .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:30px}
        .section-head h2{font-size:30px;line-height:1.3;margin:9px 0 0;color:var(--blue-deep)}
        .section-head p{color:var(--muted);max-width:540px;margin:0;font-size:14px}
        .filter-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:28px}
        .filter-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
        .filter-label{font-size:12px;color:var(--muted);font-weight:700;margin-right:4px}
        .filter-chip{border:1px solid var(--line);background:#fbfcfd;color:var(--muted);border-radius:7px;padding:8px 13px;font-size:13px;transition:.2s ease;cursor:pointer}
        .filter-chip:hover,.filter-chip.active{border-color:#b9ccd8;background:var(--blue-soft);color:var(--blue-deep)}
        .index-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:24px;align-items:start}
        .index-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:25px}
        .index-panel h3{font-size:18px;color:var(--blue-deep);margin:0 0 17px}
        .index-panel p{font-size:13px;color:var(--muted);margin:0 0 22px}
        .index-list{list-style:none;padding:0;margin:0}
        .index-list li{display:flex;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:13px;color:var(--muted)}
        .index-list li:last-child{border-bottom:0}
        .index-list b{color:var(--plum);font-weight:700}
        .guide-note{margin-top:24px;padding:14px;background:var(--plum-soft);border-radius:10px;color:var(--plum);font-size:12px}
        .content-list{display:flex;flex-direction:column;gap:14px}
        .content-item{display:grid;grid-template-columns:92px minmax(0,1fr) auto;gap:20px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:19px 22px;box-shadow:0 8px 24px rgba(43,68,88,.05);transition:.25s ease}
        .content-item:hover{transform:translateY(-3px);border-color:#b9ccd8;box-shadow:var(--shadow-hover)}
        .content-no{height:68px;border-radius:10px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);font-size:18px;font-weight:800}
        .item-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:5px}
        .tag{display:inline-block;padding:3px 8px;border-radius:5px;background:var(--plum-soft);color:var(--plum);font-size:11px;font-weight:700}
        .item-time{font-size:11px;color:var(--muted)}
        .content-item h3{font-size:18px;line-height:1.45;margin:0 0 4px;color:var(--blue-deep)}
        .content-item p{font-size:13px;color:var(--muted);margin:0}
        .text-link{font-size:13px;color:var(--blue);font-weight:700;white-space:nowrap}
        .text-link:hover{color:var(--plum)}
        .data-band{background:#edf4f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0}
        .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
        .data-cell{padding:10px 25px;border-right:1px solid #d2e0e7}
        .data-cell:first-child{padding-left:0}
        .data-cell:last-child{border-right:0}
        .data-cell strong{display:block;font-size:30px;color:var(--blue-deep);line-height:1.2}
        .data-cell span{font-size:12px;color:var(--muted)}
        .feature-strip{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}
        .feature-card,.topic-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s ease}
        .feature-card:hover,.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
        .feature-card{padding:30px;min-height:230px;position:relative;overflow:hidden}
        .feature-card:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:var(--blue-soft);right:-75px;bottom:-105px}
        .feature-card h3{font-size:24px;margin:17px 0 10px;position:relative;z-index:1}
        .feature-card p,.topic-card p{font-size:14px;color:var(--muted);max-width:600px;position:relative;z-index:1}
        .topic-column{display:flex;flex-direction:column;gap:20px}
        .topic-card{padding:22px}
        .topic-card h3{font-size:18px;margin:9px 0 5px}
        .topic-arrow{color:var(--plum);font-size:20px;float:right}
        .pagination-wrap{display:flex;justify-content:space-between;align-items:center;margin-top:28px}
        .page-note{font-size:12px;color:var(--muted)}
        .pagination .page-link{color:var(--blue);border-color:var(--line);background:var(--white);margin:0 3px;border-radius:7px}
        .pagination .page-item.active .page-link{background:var(--blue);border-color:var(--blue);color:#fff}
        .faq-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px 25px}
        .accordion-item{border:0;border-bottom:1px solid var(--line)!important}
        .accordion-item:last-child{border-bottom:0!important}
        .accordion-button{padding:20px 5px;background:transparent!important;color:var(--blue-deep)!important;box-shadow:none!important;font-weight:700}
        .accordion-button:after{filter:none}
        .accordion-body{padding:0 5px 20px;color:var(--muted);font-size:14px}
        .contact-panel{background:var(--blue-soft);border:1px solid #d4e2e9;border-radius:var(--radius);padding:34px}
        .contact-panel h2{color:var(--blue-deep);font-size:28px;margin:8px 0 10px}
        .contact-panel p{font-size:14px;color:var(--muted);max-width:650px}
        .form-control,.form-select{border:1px solid #cbd9e1;border-radius:9px;padding:11px 13px;background:#fff;color:var(--ink)}
        .form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(80,107,134,.12)}
        .form-label{font-size:13px;color:var(--blue-deep);font-weight:700}
        .form-hint{font-size:11px;color:var(--muted);margin-top:12px}
        .site-footer{background:#eef3f6;border-top:1px solid var(--line);padding:36px 0 22px}
        .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:start;padding-bottom:25px;border-bottom:1px solid var(--line)}
        .footer-brand{font-size:19px;font-weight:760;color:var(--blue-deep)}
        .privacy-note{font-size:12px;color:var(--muted);margin-top:5px}
        .footer-links{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
        .footer-links a:hover{color:var(--plum)}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;font-size:11px;color:var(--muted)}
        .age-overlay{position:fixed;inset:0;background:rgba(36,53,68,.5);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
        .age-dialog{background:var(--white);max-width:470px;width:100%;border-radius:18px;border:1px solid var(--line);box-shadow:0 24px 70px rgba(36,53,68,.2);padding:32px}
        .age-dialog h2{font-size:25px;color:var(--blue-deep);margin:0 0 12px}
        .age-dialog p{font-size:14px;color:var(--muted);margin-bottom:24px}
        .age-actions{display:flex;gap:10px}
        .age-actions .btn-main,.age-actions .btn-soft{margin:0;flex:1}
        .hidden{display:none!important}
        @media(max-width:991px){
            .masthead{gap:14px}.brand-name{font-size:18px}.brand-note{display:none}
            .hero-layout,.index-layout,.feature-strip{grid-template-columns:1fr}
            .hero-aside{max-width:520px}.data-grid{grid-template-columns:repeat(2,1fr);gap:18px}
            .data-cell{border-right:0;padding:10px 0}
        }
        @media(max-width:767px){
            .masthead{min-height:68px;flex-wrap:wrap;padding:10px 0}.nav-rule{display:none}.header-age{margin-left:auto}
            .main-nav{order:3;width:100%;overflow-x:auto;padding-bottom:4px}.main-nav a{white-space:nowrap}
            .page-hero{padding:48px 0 40px}h1{letter-spacing:-1px}.section{padding:58px 0}
            .section-head{display:block}.section-head p{margin-top:12px}.content-item{grid-template-columns:56px 1fr;gap:14px;padding:15px}
            .content-no{height:56px}.content-item .text-link{grid-column:2}
            .footer-top,.footer-bottom{display:block}.footer-links{margin-top:20px}.footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            .brand-mark{width:36px;height:36px}.brand-name{font-size:16px}.header-age{font-size:11px}
            .filter-row{align-items:stretch}.filter-label{width:100%}.filter-chip{flex:1}
            .data-grid{grid-template-columns:1fr 1fr}.data-cell strong{font-size:24px}
            .contact-panel{padding:24px}.age-dialog{padding:25px}.age-actions{flex-direction:column}
            .pagination-wrap{display:block}.pagination{margin-top:12px}
        }

/* roulang page: category1 */
:root{
 --blue:#506b86;
 --blue-deep:#324a63;
 --blue-soft:#eaf1f6;
 --plum:#85566d;
 --plum-soft:#f4e9ee;
 --ink:#243544;
 --muted:#71808d;
 --paper:#f8fafb;
 --white:#fff;
 --line:#dce5eb;
 --green:#648f89;
 --amber:#ae8052;
 --radius:16px;
 --shadow:0 14px 40px rgba(43,68,88,.08);
 --shadow-hover:0 20px 48px rgba(43,68,88,.14);
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.8}
a{color:inherit;text-decoration:none}
a:focus,button:focus,input:focus,select:focus,textarea:focus{outline:3px solid rgba(133,86,109,.25);outline-offset:2px}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.container{max-width:1180px}
.site-header{background:rgba(248,250,251,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}
.masthead{min-height:78px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:15px;white-space:nowrap}
.brand-mark{width:42px;height:42px;border:1px solid var(--blue);color:var(--blue);display:grid;place-items:center;font-size:12px;letter-spacing:1px;border-radius:10px}
.brand-name{font-size:22px;font-weight:760;letter-spacing:-.8px;color:var(--blue-deep)}
.brand-note{font-size:11px;color:var(--plum);letter-spacing:2px;border-left:1px solid var(--line);padding-left:18px}
.nav-rule{height:28px;width:1px;background:var(--line);margin-left:auto}
.main-nav{display:flex;align-items:center;gap:7px}
.main-nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:8px;transition:.25s ease}
.main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}
.header-age{font-size:12px;color:var(--green);border:1px solid #c8ddda;padding:5px 10px;border-radius:30px;white-space:nowrap}
.hero{padding:76px 0 54px;background:linear-gradient(180deg,#eef4f7 0%,var(--paper) 100%);border-bottom:1px solid var(--line)}
.breadcrumb-line{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:25px}
.breadcrumb-line a:hover{color:var(--plum)}
.breadcrumb-line span{color:#a5b1b9}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:58px;align-items:center}
.eyebrow,.section-kicker{font-size:11px;color:var(--plum);font-weight:750;letter-spacing:2px;text-transform:uppercase}
h1{font-size:clamp(34px,5vw,58px);line-height:1.17;letter-spacing:-2px;color:var(--blue-deep);margin:12px 0 20px;font-weight:780}
.hero-copy{font-size:17px;color:#536572;max-width:650px;margin-bottom:28px}
.btn-main,.btn-soft{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:9px;font-size:14px;font-weight:700;transition:.25s ease}
.btn-main{background:var(--blue);color:#fff;border:1px solid var(--blue)}
.btn-main:hover,.btn-main:focus{background:var(--blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(80,107,134,.22)}
.btn-soft{background:var(--white);color:var(--blue);border:1px solid #b8cbd8;margin-left:10px}
.btn-soft:hover,.btn-soft:focus{background:var(--plum-soft);color:var(--plum);border-color:#d8b9c7}
.hero-panel{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);position:relative}
.hero-panel:before{content:"01";position:absolute;right:23px;top:15px;color:#d6e2e9;font-size:43px;font-weight:800}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:19px}
.panel-title{font-size:13px;color:var(--muted)}
.status{font-size:11px;color:var(--green);background:#edf6f4;padding:4px 9px;border-radius:5px}
.index-item{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14px}
.index-item:last-child{border-bottom:0}
.index-item strong{font-size:14px;color:var(--blue-deep)}
.index-item span{font-size:12px;color:var(--muted)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:20px}
.hero-stat strong{display:block;font-size:21px;color:var(--blue)}
.hero-stat span{font-size:11px;color:var(--muted)}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:30px}
.section-head h2{font-size:32px;line-height:1.3;margin:10px 0 0;color:var(--blue-deep)}
.section-head p{color:var(--muted);max-width:550px;margin:0;font-size:14px}
.filter-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:30px}
.filter-row{display:grid;grid-template-columns:1.5fr 1fr 1fr auto;gap:12px;align-items:center}
.form-control,.form-select{border:1px solid #cbd8e0;border-radius:9px;min-height:44px;color:var(--ink);background:#fbfcfd}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(80,107,134,.12)}
.filter-note{font-size:12px;color:var(--muted);margin-top:12px}
.topic-layout{display:grid;grid-template-columns:4fr 8fr;gap:22px;align-items:start}
.index-panel,.feature-card,.topic-card,.related-card,.faq-wrap,.contact-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s ease}
.index-panel{padding:25px;position:sticky;top:105px}
.index-panel h3{font-size:18px;color:var(--blue-deep);margin:0 0 17px}
.index-list{list-style:none;padding:0;margin:0}
.index-list li{border-bottom:1px dashed var(--line)}
.index-list li:last-child{border-bottom:0}
.index-list a{display:flex;justify-content:space-between;padding:12px 0;color:var(--muted);font-size:13px;transition:.2s ease}
.index-list a:hover,.index-list a.active{color:var(--plum);padding-left:5px}
.index-list b{font-weight:700;color:var(--plum)}
.feature-card{padding:31px;position:relative;overflow:hidden;margin-bottom:18px;min-height:245px}
.feature-card:hover,.topic-card:hover,.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#b9ccd8}
.feature-card:after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:var(--blue-soft);right:-90px;bottom:-110px}
.feature-card h3{font-size:26px;line-height:1.35;color:var(--blue-deep);margin:16px 0 10px;max-width:620px;position:relative;z-index:1}
.feature-card p{font-size:14px;color:var(--muted);max-width:600px;position:relative;z-index:1}
.meta-line{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin:16px 0}
.meta-line span:before{content:"·";color:var(--plum);margin-right:6px}
.tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--plum-soft);color:var(--plum);font-size:11px;font-weight:700}
.topic-list{display:grid;gap:14px}
.topic-card{padding:22px;display:grid;grid-template-columns:58px 1fr auto;gap:17px;align-items:start}
.topic-number{font-size:20px;color:var(--plum);font-weight:780;line-height:1.35}
.topic-card h3{font-size:18px;color:var(--blue-deep);margin:2px 0 5px}
.topic-card p{font-size:13px;color:var(--muted);margin:0}
.topic-arrow{color:var(--plum);font-size:21px;line-height:1.3}
.data-band{background:#edf4f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.data-item{padding:25px 24px;border-right:1px solid var(--line)}
.data-item:last-child{border-right:0}
.data-item strong{display:block;font-size:31px;color:var(--blue);line-height:1.2}
.data-item span{display:block;color:var(--muted);font-size:12px;margin-top:6px}
.data-item em{font-style:normal;font-size:12px;color:var(--plum);display:block;margin-top:9px}
.wide-story{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.story-main,.story-side{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.story-main{padding:30px;min-height:260px}
.story-main h3{font-size:25px;color:var(--blue-deep);margin:15px 0 10px}
.story-main p,.story-side p{color:var(--muted);font-size:14px}
.story-side{padding:25px}
.story-side h3{font-size:18px;color:var(--blue-deep);margin:14px 0 7px}
.story-side ul{list-style:none;padding:0;margin:15px 0 0}
.story-side li{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.story-side li:last-child{border-bottom:0}
.path-grid{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:18px;align-items:stretch}
.path-card{padding:25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);position:relative}
.path-card:nth-child(2){background:var(--blue);color:#fff;transform:translateY(-10px)}
.path-card:nth-child(2) h3,.path-card:nth-child(2) p{color:#fff}
.path-no{font-size:12px;color:var(--plum);font-weight:800;letter-spacing:1px}
.path-card:nth-child(2) .path-no{color:#e9d9e1}
.path-card h3{font-size:19px;color:var(--blue-deep);margin:15px 0 8px}
.path-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
.faq-wrap{padding:10px 25px}
.accordion-item{border:0;border-bottom:1px solid var(--line)!important}
.accordion-item:last-child{border-bottom:0!important}
.accordion-button{padding:20px 5px;background:transparent!important;color:var(--blue-deep)!important;box-shadow:none!important;font-weight:700}
.accordion-button:not(.collapsed){color:var(--plum)!important}
.accordion-body{padding:0 5px 20px;color:var(--muted);font-size:14px}
.cta-section{padding:0 0 86px}
.contact-panel{background:var(--blue-soft);padding:35px;display:grid;grid-template-columns:.9fr 1.1fr;gap:35px}
.contact-panel h2{font-size:30px;color:var(--blue-deep);margin:10px 0 13px}
.contact-panel p{color:var(--muted);font-size:14px}
.form-label{font-size:13px;color:var(--blue-deep);font-weight:700;margin-bottom:6px}
.form-control::placeholder{color:#9aa8b1}
.privacy-note{font-size:12px;color:var(--muted);margin-top:15px}
.site-footer{background:#eef3f5;border-top:1px solid var(--line);padding:35px 0 22px}
.footer-top{display:flex;justify-content:space-between;gap:25px;align-items:start;padding-bottom:25px;border-bottom:1px solid var(--line)}
.footer-brand{font-size:20px;font-weight:760;color:var(--blue-deep)}
.footer-links{display:flex;flex-wrap:wrap;gap:17px;justify-content:flex-end}
.footer-links a{font-size:13px;color:var(--muted);transition:.2s ease}
.footer-links a:hover{color:var(--plum)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;color:#8997a0;font-size:11px}
.age-overlay{position:fixed;inset:0;background:rgba(36,53,68,.48);z-index:100;display:grid;place-items:center;padding:20px}
.age-dialog{max-width:480px;width:100%;background:var(--white);border:1px solid var(--line);border-radius:18px;box-shadow:0 25px 70px rgba(30,45,58,.2);padding:34px}
.age-dialog h2{font-size:25px;color:var(--blue-deep);margin:11px 0}
.age-dialog p{font-size:14px;color:var(--muted);margin-bottom:22px}
.age-actions{display:flex;gap:10px}
.age-actions .btn-main,.age-actions .btn-soft{flex:1;margin:0}
.is-hidden{display:none!important}
@media(max-width:991px){
 .masthead{gap:14px;flex-wrap:wrap;padding:14px 0}
 .nav-rule{display:none}
 .main-nav{order:3;width:100%;justify-content:flex-start;border-top:1px solid var(--line);padding-top:10px}
 .hero-grid,.topic-layout,.wide-story,.contact-panel{grid-template-columns:1fr}
 .index-panel{position:static}
 .data-grid{grid-template-columns:repeat(2,1fr)}
 .data-item:nth-child(2){border-right:0}
 .data-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .path-grid{grid-template-columns:1fr}
 .path-card:nth-child(2){transform:none}
}
@media(max-width:767px){
 .container{padding-left:20px;padding-right:20px}
 .brand-name{font-size:18px}
 .brand-note{padding-left:10px}
 .header-age{margin-left:auto}
 .hero{padding:52px 0 36px}
 h1{font-size:36px;letter-spacing:-1.3px}
 .hero-copy{font-size:15px}
 .section{padding:58px 0}
 .section-head{display:block}
 .section-head p{margin-top:12px}
 .filter-row{grid-template-columns:1fr}
 .topic-card{grid-template-columns:42px 1fr}
 .topic-arrow{grid-column:2}
 .data-item{padding:20px 15px}
 .data-item strong{font-size:25px}
 .footer-top,.footer-bottom{display:block}
 .footer-links{justify-content:flex-start;margin-top:20px}
 .footer-bottom span{display:block;margin-top:8px}
}
@media(max-width:520px){
 .brand{gap:9px}
 .brand-mark{width:36px;height:36px}
 .brand-name{font-size:16px}
 .brand-note{font-size:10px;letter-spacing:1px}
 .main-nav{gap:2px;overflow-x:auto;white-space:nowrap}
 .main-nav a{font-size:12px;padding:8px 9px}
 .header-age{font-size:10px;padding:4px 7px}
 .hero-actions{display:flex;flex-direction:column;gap:10px}
 .btn-soft{margin-left:0}
 .hero-panel{padding:22px}
 .hero-stats{gap:6px}
 .feature-card,.story-main,.story-side,.contact-panel{padding:23px}
 .feature-card h3{font-size:22px}
 .faq-wrap{padding:8px 17px}
 .age-dialog{padding:25px}
 .age-actions{flex-direction:column}
}