/* roulang page: index */
:root{
      --blue:#2477d4;
      --blue-dark:#1559a8;
      --blue-soft:#eaf4ff;
      --cyan:#dff7f7;
      --ink:#15263d;
      --muted:#6d7d91;
      --line:#dce7f2;
      --bg:#f6f9fc;
      --white:#fff;
      --orange:#ed9b57;
      --radius:14px;
      --shadow:0 12px 32px rgba(34,75,117,.08);
      --shadow-hover:0 18px 38px rgba(34,75,117,.14);
      --ease:all .2s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(36,119,212,.3);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
    .nav-shell{min-height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;white-space:nowrap;color:var(--ink)}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}
    .nav-search{flex:1;max-width:530px;position:relative}
    .nav-search input,.hero-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;background:#f8fbfe;padding:0 112px 0 42px;color:var(--ink);transition:var(--ease)}
    .nav-search input:focus,.hero-search input:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(36,119,212,.1);outline:0}
    .search-icon{position:absolute;left:15px;top:12px;width:18px;height:18px;border:2px solid var(--muted);border-radius:50%}
    .search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--muted);right:-5px;bottom:-2px;transform:rotate(45deg)}
    .search-submit{position:absolute;right:4px;top:4px;height:36px;border:0;border-radius:8px;background:var(--blue);color:#fff;padding:0 17px;font-size:14px}
    .search-submit:hover{background:var(--blue-dark)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:var(--muted);font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:var(--blue-soft);color:var(--blue-dark)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;height:42px;width:44px;color:var(--blue)}
    .hero{padding:78px 0 70px;background:#fff;border-bottom:1px solid var(--line)}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    h1{font-size:clamp(34px,4.2vw,52px);line-height:1.2;letter-spacing:-.04em;margin:18px 0 22px;font-weight:850}
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin:0 0 30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:var(--ease)}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(36,119,212,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue-dark);border-color:#bcd5ec}
    .btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft)}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .dot{width:8px;height:8px;border-radius:50%;background:#46b99a;display:inline-block}
    .hero-panel{border:1px solid var(--line);border-radius:18px;background:#f8fbff;padding:25px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-panel:before{content:"";position:absolute;right:-70px;top:-80px;width:210px;height:210px;border-radius:50%;background:var(--cyan);opacity:.75}
    .panel-head{position:relative;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:18px}
    .panel-head strong{font-size:16px}
    .status{font-size:12px;color:#258b75;background:#e7f7f1;padding:4px 9px;border-radius:20px}
    .index-row{position:relative;display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
    .index-row:last-child{border:0}
    .index-number{width:32px;height:32px;border-radius:9px;background:#e4f0fd;color:var(--blue-dark);display:grid;place-items:center;font-weight:800}
    .index-row b{display:block;font-size:14px}
    .index-row small{color:var(--muted);font-size:12px}
    .section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}
    .section-title{font-size:31px;line-height:1.3;margin:9px 0 0;letter-spacing:-.025em}
    .section-desc{color:var(--muted);max-width:590px;margin:0}
    .text-link{color:var(--blue-dark);font-weight:700;font-size:14px}
    .text-link:hover{color:var(--blue)}
    .metrics{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:14px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:var(--shadow)}
    .metric:first-child{background:var(--blue);color:#fff;border-color:var(--blue)}
    .metric-label{font-size:13px;color:var(--muted);display:block;margin-bottom:12px}
    .metric:first-child .metric-label{color:#d8ebff}
    .metric strong{font-size:34px;line-height:1;display:block;margin-bottom:8px}
    .metric small{font-size:12px;color:var(--muted)}
    .metric:first-child small{color:#d8ebff}
    .matrix{display:grid;grid-template-columns:1.05fr .95fr 1.2fr;gap:16px;align-items:stretch}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:var(--ease)}
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .feature-card.tall{grid-row:span 2;background:var(--blue-soft)}
    .feature-icon{width:42px;height:42px;border-radius:11px;background:#fff;color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:25px}
    .feature-card h3{font-size:20px;margin:0 0 9px}
    .feature-card p{color:var(--muted);font-size:14px;margin:0 0 20px}
    .feature-card.tall p{max-width:300px}
    .mini-list{list-style:none;padding:0;margin:24px 0 0;border-top:1px solid rgba(36,119,212,.16)}
    .mini-list li{padding:12px 0;border-bottom:1px solid rgba(36,119,212,.16);display:flex;justify-content:space-between;font-size:13px}
    .mini-list span{color:var(--muted)}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
    .tag{display:inline-flex;padding:5px 10px;border-radius:7px;background:#eef5fb;color:var(--blue-dark);font-size:12px}
    .compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px}
    .compare-card.highlight{border-color:#a8d2f5;box-shadow:var(--shadow)}
    .compare-card h3{margin:0 0 18px;font-size:19px}
    .compare-card ul{list-style:none;padding:0;margin:0}
    .compare-card li{padding:13px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;font-size:14px}
    .compare-card li span{color:var(--muted)}
    .compare-card li b{color:var(--blue-dark);white-space:nowrap}
    .faq-list{max-width:880px;margin:0 auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden}
    .faq-question{width:100%;border:0;background:#fff;display:flex;justify-content:space-between;text-align:left;align-items:center;padding:19px 22px;font-weight:700;color:var(--ink);min-height:58px}
    .faq-question:hover{background:#f8fbfe}
    .faq-question i{font-style:normal;color:var(--blue);font-size:22px;transition:var(--ease)}
    .faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question i{transform:rotate(45deg)}
    .cta-section{padding:30px 0 90px}
    .cta-box{background:var(--blue-soft);border:1px solid #c9e2f7;border-radius:18px;padding:37px;display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center}
    .cta-box h2{font-size:28px;line-height:1.35;margin:10px 0 12px}
    .cta-box p{color:var(--muted);margin:0}
    .signup-form{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .signup-form input,.signup-form select,.signup-form textarea{width:100%;border:1px solid #cbddeb;background:#fff;border-radius:8px;padding:0 13px;height:45px;color:var(--ink)}
    .signup-form textarea{height:88px;padding-top:10px;resize:vertical;grid-column:1/-1}
    .signup-form .btn{grid-column:1/-1}
    .form-tip{grid-column:1/-1;color:var(--muted);font-size:12px;margin:0}
    .site-footer{background:#edf4fa;border-top:1px solid var(--line);padding:38px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:35px}
    .footer-brand{font-weight:800;font-size:17px;margin-bottom:12px}
    .footer-copy{color:var(--muted);font-size:13px;max-width:390px;margin:0}
    .footer-title{font-weight:700;margin-bottom:12px;font-size:14px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--blue-dark)}
    .footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:17px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .age-note{color:#94602d}
    @media(max-width:1024px){
      .nav-shell{gap:14px}.nav-links a{padding:8px 7px}.hero-grid{gap:32px}.matrix{grid-template-columns:1fr 1fr}.feature-card.tall{grid-row:auto;grid-column:1/-1}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .site-header{position:relative}.nav-shell{min-height:65px;flex-wrap:wrap;padding:11px 0}.brand{font-size:16px}.menu-toggle{display:block;margin-left:auto}
      .nav-search{order:3;flex-basis:100%;max-width:none}.nav-links{display:none;order:4;width:100%;padding:5px 0 8px}.nav-links.show{display:flex;flex-wrap:wrap}
      .hero{padding:52px 0 55px}.hero-grid{grid-template-columns:1fr}.hero-copy{font-size:16px}.hero-panel{max-width:560px}
      .section{padding:62px 0}.section-head{display:block}.section-desc{margin-top:12px}.metrics{grid-template-columns:1fr 1fr}.matrix,.compare-wrap{grid-template-columns:1fr}
      .cta-box{grid-template-columns:1fr;padding:27px;gap:24px}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      h1{font-size:34px}.metrics{grid-template-columns:1fr}.hero-actions .btn{width:100%}.signup-form{grid-template-columns:1fr}.signup-form textarea,.signup-form .btn,.form-tip{grid-column:auto}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
    }

/* roulang page: category2 */
:root{
 --blue:#2477d4;
 --blue-dark:#1559a8;
 --blue-soft:#eaf4ff;
 --cyan:#dff7f7;
 --ink:#15263d;
 --muted:#6d7d91;
 --line:#dce7f2;
 --bg:#f6f9fc;
 --white:#fff;
 --orange:#ed9b57;
 --green:#319b87;
 --radius:14px;
 --shadow:0 12px 32px rgba(34,75,117,.08);
 --shadow-hover:0 18px 38px rgba(34,75,117,.14);
 --ease:all .2s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--blue-dark)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.nav-shell{min-height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;white-space:nowrap;color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}
.nav-search{flex:1;max-width:530px;position:relative}
.nav-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;background:#f8fbfe;padding:0 112px 0 42px;color:var(--ink);transition:var(--ease)}
.nav-search input:focus,.filter-control:focus,.feedback-form input:focus,.feedback-form select:focus,.feedback-form textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(36,119,212,.1);outline:0}
.search-icon{position:absolute;left:15px;top:12px;width:18px;height:18px;border:2px solid var(--muted);border-radius:50%}
.search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--muted);right:-5px;bottom:-2px;transform:rotate(45deg)}
.search-submit{position:absolute;right:4px;top:4px;height:36px;border:0;border-radius:8px;background:var(--blue);color:#fff;padding:0 17px;font-size:14px}
.search-submit:hover{background:var(--blue-dark)}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{padding:9px 12px;border-radius:8px;color:var(--muted);font-size:14px}
.nav-links a:hover,.nav-links a.active{background:var(--blue-soft);color:var(--blue-dark)}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;height:42px;width:44px;color:var(--blue);font-size:20px}
.page-hero{padding:52px 0 46px;background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--blue-dark)}
.hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:end}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
h1{font-size:clamp(34px,4vw,50px);line-height:1.2;letter-spacing:-.04em;margin:13px 0 17px}
.hero-copy{font-size:17px;color:var(--muted);max-width:680px;margin:0}
.status-box{background:#f8fbff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.status-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:12px}
.status-light{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:700}
.status-light:before{content:"";width:8px;height:8px;background:var(--green);border-radius:50%;box-shadow:0 0 0 4px #dff4ef}
.status-number{font-size:28px;font-weight:800;color:var(--blue-dark)}
.status-list{display:flex;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;padding:5px 10px;border-radius:7px;background:#eef5fb;color:var(--blue-dark);font-size:12px}
.section{padding:70px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:27px}
.section-title{font-size:30px;line-height:1.3;margin:8px 0 0;letter-spacing:-.025em}
.section-desc{color:var(--muted);max-width:600px;margin:0}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px;box-shadow:var(--shadow)}
.filter-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr auto;gap:14px;align-items:end}
.field-label{display:block;color:var(--muted);font-size:12px;font-weight:700;margin-bottom:7px}
.filter-control{width:100%;height:45px;border:1px solid var(--line);border-radius:9px;background:#f9fbfd;color:var(--ink);padding:0 13px}
.filter-button{height:45px;border:0;border-radius:9px;background:var(--blue);color:#fff;padding:0 20px;font-weight:700}
.filter-button:hover{background:var(--blue-dark)}
.filter-hints{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.filter-hints a{color:var(--blue-dark);background:var(--blue-soft);padding:4px 9px;border-radius:6px}
.feature-area{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
.main-entry{min-height:300px;border-radius:16px;padding:31px;background:linear-gradient(135deg,#eaf4ff 0%,#f8fcff 68%);border:1px solid #cfe3f5;position:relative;overflow:hidden}
.main-entry:after{content:"";position:absolute;right:-50px;bottom:-75px;width:220px;height:220px;border:34px solid rgba(36,119,212,.09);border-radius:50%}
.entry-code{font-size:12px;color:var(--blue-dark);font-weight:800;letter-spacing:.12em}
.main-entry h2{font-size:27px;line-height:1.35;max-width:540px;margin:22px 0 10px}
.main-entry p{color:var(--muted);max-width:520px;margin:0 0 20px}
.btn{min-height:44px;padding:0 19px;border-radius:9px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:var(--ease)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(36,119,212,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}
.btn-secondary{background:#fff;color:var(--blue-dark);border-color:#bcd5ec}
.btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft)}
.side-note{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.side-note h3{font-size:19px;margin:0 0 15px}
.side-note ul{list-style:none;padding:0;margin:0}
.side-note li{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-top:1px solid var(--line);font-size:14px}
.side-note li span{color:var(--muted)}
.update-list{margin-top:24px;border-top:1px solid var(--line)}
.update-item{display:grid;grid-template-columns:78px 1fr auto;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
.update-mark{height:60px;border-radius:11px;background:var(--blue-soft);color:var(--blue-dark);display:grid;place-items:center;font-weight:800;font-size:18px}
.update-item h3{font-size:18px;margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.update-item p{color:var(--muted);font-size:13px;margin:0}
.update-meta{text-align:right;color:var(--muted);font-size:12px;white-space:nowrap}
.update-meta strong{display:block;color:var(--blue-dark);font-size:13px;margin-bottom:6px}
.tag-cloud{display:flex;gap:10px;flex-wrap:wrap}
.cloud-tag{background:#fff;border:1px solid var(--line);border-radius:9px;padding:10px 15px;color:var(--blue-dark);font-size:14px;transition:var(--ease)}
.cloud-tag:hover{border-color:var(--blue);background:var(--blue-soft);transform:translateY(-2px)}
.faq-list{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden}
.faq-question{width:100%;border:0;background:#fff;display:flex;justify-content:space-between;text-align:left;align-items:center;padding:18px 22px;font-weight:700;color:var(--ink);min-height:58px}
.faq-question:hover{background:#f8fbfe}
.faq-question i{font-style:normal;color:var(--blue);font-size:20px}
.faq-answer{display:none;padding:0 22px 19px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question i{transform:rotate(45deg)}
.cta-panel{background:#eaf4ff;border:1px solid #cfe3f5;border-radius:18px;padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}
.cta-panel h2{font-size:27px;line-height:1.35;margin:8px 0 10px}
.cta-panel p{color:var(--muted);margin:0}
.feedback-form{display:grid;gap:12px}
.feedback-form input,.feedback-form select{height:44px;border:1px solid #c9dceb;border-radius:8px;background:#fff;padding:0 13px;color:var(--ink)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-message{font-size:13px;color:var(--green);min-height:20px}
.site-footer{background:#eef4f9;border-top:1px solid var(--line);padding:48px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-brand{font-weight:800;font-size:19px;margin-bottom:12px}
.footer-copy{max-width:390px;color:var(--muted);font-size:13px;margin:0}
.footer-title{font-weight:800;margin-bottom:12px}
.footer-links{display:grid;gap:8px;color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--blue-dark)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:var(--muted);font-size:12px}
.age-note{color:#8a6b52}
@media(max-width:1024px){
 .nav-shell{gap:14px}.nav-links a{padding:8px 7px}.hero-layout,.feature-area{gap:28px}
}
@media(max-width:768px){
 .container{width:min(100% - 30px,600px)}
 .nav-shell{min-height:68px;flex-wrap:wrap;padding:11px 0;gap:10px}
 .brand{font-size:16px}.brand-mark{width:31px;height:31px}
 .menu-toggle{display:block;margin-left:auto}
 .nav-search{order:3;flex-basis:100%;max-width:none}
 .nav-links{display:none;order:4;width:100%;padding:8px 0;overflow:auto}
 .nav-links.show{display:flex}.nav-links a{white-space:nowrap}
 .page-hero{padding:38px 0 35px}.hero-layout,.feature-area,.cta-panel{grid-template-columns:1fr}
 h1{font-size:34px}.section{padding:54px 0}.section-head{display:block}
 .section-desc{margin-top:10px}.filter-grid{grid-template-columns:1fr 1fr}.filter-grid .field:first-child{grid-column:span 2}
 .filter-button{width:100%}.update-item{grid-template-columns:58px 1fr}.update-meta{grid-column:2;text-align:left}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}
}
@media(max-width:520px){
 .container{width:calc(100% - 24px)}
 .brand{font-size:15px}.nav-search input{padding-right:92px}
 .search-submit{padding:0 12px}
 .hero-copy{font-size:15px}.filter-panel{padding:17px}
 .filter-grid{grid-template-columns:1fr}.filter-grid .field:first-child{grid-column:auto}
 .main-entry,.side-note,.cta-panel{padding:22px}.main-entry h2,.cta-panel h2{font-size:23px}
 .update-item{gap:12px}.update-item h3{font-size:16px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
 .footer-bottom{display:block}.footer-bottom .age-note{display:block;margin-top:8px}
}

/* roulang page: category1 */
:root{
        --blue:#2477d4;
        --blue-dark:#1559a8;
        --blue-soft:#eaf4ff;
        --cyan:#dff7f7;
        --ink:#15263d;
        --muted:#6d7d91;
        --line:#dce7f2;
        --bg:#f6f9fc;
        --white:#fff;
        --orange:#ed9b57;
        --green:#239787;
        --radius:14px;
        --shadow:0 12px 32px rgba(34,75,117,.08);
        --shadow-hover:0 18px 38px rgba(34,75,117,.14);
        --ease:all .2s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
    .nav-shell{min-height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;white-space:nowrap;color:var(--ink)}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800}
    .nav-search{flex:1;max-width:530px;position:relative}
    .nav-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;background:#f8fbfe;padding:0 112px 0 42px;color:var(--ink);transition:var(--ease)}
    .nav-search input:focus,.filter-control:focus,.notify-form input:focus,.notify-form textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(36,119,212,.1);outline:0}
    .search-icon{position:absolute;left:15px;top:12px;width:18px;height:18px;border:2px solid var(--muted);border-radius:50%}
    .search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--muted);right:-5px;bottom:-2px;transform:rotate(45deg)}
    .search-submit{position:absolute;right:4px;top:4px;height:36px;border:0;border-radius:8px;background:var(--blue);color:#fff;padding:0 17px;font-size:14px}
    .search-submit:hover{background:var(--blue-dark)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:var(--muted);font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:var(--blue-soft);color:var(--blue-dark)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;height:42px;width:44px;color:var(--blue)}
    .page-hero{padding:66px 0 58px;background:#fff;border-bottom:1px solid var(--line)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    h1{font-size:46px;line-height:1.22;letter-spacing:-.035em;margin:14px 0 20px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:640px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{min-height:46px;padding:0 20px;border-radius:9px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:var(--ease)}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(36,119,212,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue-dark);border-color:#bcd5ec}
    .btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft)}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}
    .hero-note strong{color:var(--green)}
    .preview-board{border:1px solid var(--line);border-radius:18px;background:#f8fbff;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .preview-board:before{content:"";position:absolute;right:-54px;top:-75px;width:190px;height:190px;border-radius:50%;background:var(--cyan);opacity:.8}
    .board-top{position:relative;display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
    .board-title{font-weight:800;font-size:17px}
    .status{font-size:12px;color:var(--green);background:#e5f7f2;padding:4px 9px;border-radius:6px}
    .topic-feature{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px}
    .topic-feature h3{font-size:18px;margin:0 0 6px}
    .topic-feature p{margin:0;color:var(--muted);font-size:13px}
    .board-meta{position:relative;display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:13px}
    .section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
    .section-title{font-size:31px;line-height:1.3;margin:9px 0 0;letter-spacing:-.025em}
    .section-desc{color:var(--muted);max-width:590px;margin:0}
    .text-link{color:var(--blue-dark);font-weight:700;font-size:14px}
    .text-link:hover{color:var(--blue)}
    .filter-panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px;box-shadow:var(--shadow)}
    .filter-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr auto;gap:12px;align-items:end}
    .field-label{display:block;font-size:12px;color:var(--muted);font-weight:700;margin:0 0 6px}
    .filter-control{height:44px;width:100%;border:1px solid var(--line);border-radius:9px;background:#f8fbfe;color:var(--ink);padding:0 12px;transition:var(--ease)}
    .filter-panel .btn{height:44px;min-height:44px}
    .filter-note{font-size:12px;color:var(--muted);margin:15px 0 0;padding-top:14px;border-top:1px solid var(--line)}
    .result-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px;align-items:start}
    .main-topic{background:var(--blue-soft);border:1px solid #c9e1f7;border-radius:16px;padding:28px;min-height:310px;position:relative;overflow:hidden}
    .main-topic:after{content:"01";position:absolute;right:22px;bottom:-22px;color:rgba(36,119,212,.11);font-size:130px;font-weight:900;line-height:1}
    .main-topic h3{font-size:27px;line-height:1.35;margin:16px 0 10px;max-width:560px}
    .main-topic p{color:var(--muted);max-width:580px;margin:0 0 22px}
    .topic-label{display:inline-flex;align-items:center;padding:5px 10px;border-radius:6px;background:#fff;color:var(--blue-dark);font-size:12px;font-weight:700}
    .topic-side{display:grid;gap:12px}
    .topic-row{background:#fff;border:1px solid var(--line);border-radius:13px;padding:18px 19px;transition:var(--ease)}
    .topic-row:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .topic-row h4{font-size:17px;margin:0 0 4px}
    .topic-row p{font-size:13px;color:var(--muted);margin:0 0 10px}
    .row-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
    .tag{display:inline-flex;padding:5px 10px;border-radius:7px;background:#eef5fb;color:var(--blue-dark);font-size:12px}
    .tag:hover{background:#dceeff}
    .strip-list{margin-top:24px;border-top:1px solid var(--line)}
    .strip-item{display:grid;grid-template-columns:80px 1fr auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .strip-index{height:52px;width:80px;border-radius:9px;background:#edf6ff;color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:20px}
    .strip-item h4{font-size:16px;margin:0 0 3px}
    .strip-item p{font-size:13px;color:var(--muted);margin:0}
    .strip-date{font-size:12px;color:var(--muted);white-space:nowrap}
    .process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .process-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow)}
    .process-num{color:var(--blue);font-weight:800;font-size:13px}
    .process-card h3{font-size:18px;margin:13px 0 7px}
    .process-card p{color:var(--muted);font-size:14px;margin:0}
    .faq-list{max-width:880px;margin:0 auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden}
    .faq-question{width:100%;border:0;background:#fff;display:flex;justify-content:space-between;text-align:left;align-items:center;padding:19px 22px;font-weight:700;color:var(--ink);min-height:58px}
    .faq-question:hover{background:#f8fbfe}
    .faq-question:focus{outline:3px solid rgba(36,119,212,.22);outline-offset:-3px}
    .faq-question i{font-style:normal;color:var(--blue);font-size:22px}
    .faq-answer{padding:0 22px 19px;color:var(--muted);font-size:14px}
    .cta-box{background:#eaf4ff;border:1px solid #c9e1f7;border-radius:18px;padding:35px 40px;display:grid;grid-template-columns:1fr .9fr;gap:35px;align-items:center}
    .cta-box h2{font-size:28px;line-height:1.35;margin:0 0 10px}
    .cta-box p{color:var(--muted);margin:0}
    .notify-form{background:#fff;border-radius:13px;padding:20px;box-shadow:var(--shadow)}
    .notify-form .form-line{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
    .notify-form input{height:44px;width:100%;border:1px solid var(--line);border-radius:8px;padding:0 12px;background:#f8fbfe;transition:var(--ease)}
    .notify-form textarea{width:100%;min-height:72px;border:1px solid var(--line);border-radius:8px;padding:9px 12px;background:#f8fbfe;resize:vertical;transition:var(--ease);margin-bottom:10px}
    .form-tip{font-size:12px;color:var(--muted);margin:10px 0 0}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}
    .footer-brand{font-weight:800;font-size:19px;margin-bottom:10px}
    .footer-copy{color:var(--muted);font-size:13px;max-width:400px;margin:0}
    .footer-title{font-weight:800;font-size:14px;margin-bottom:13px}
    .footer-links{display:grid;gap:8px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .footer-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:12px}
    .age-note{color:#9a6c42}
    @media(max-width:1024px){
        .nav-shell{gap:15px}.nav-links a{padding:8px 7px}
        .hero-grid{gap:35px}.filter-grid{grid-template-columns:1fr 1fr 1fr}.filter-grid .filter-action{grid-column:span 3}
        .filter-grid .filter-action .btn{width:100%}
    }
    @media(max-width:768px){
        .container{width:min(100% - 30px,620px)}
        .nav-shell{min-height:68px;flex-wrap:wrap;padding:10px 0;gap:10px}
        .brand{font-size:16px;flex:1}.brand-mark{width:31px;height:31px}
        .menu-toggle{display:block}
        .nav-search{order:3;flex-basis:100%;max-width:none}
        .nav-links{display:none;order:4;width:100%;padding:5px 0 8px;overflow-x:auto}
        .nav-links.open{display:flex}
        .nav-links a{white-space:nowrap}
        .page-hero{padding:48px 0 42px}.hero-grid{grid-template-columns:1fr;gap:28px}
        h1{font-size:35px}.hero-copy{font-size:16px}
        .section{padding:58px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:12px}
        .filter-grid{grid-template-columns:1fr 1fr}.filter-grid .filter-action{grid-column:span 2}
        .result-layout{grid-template-columns:1fr}.process-grid{grid-template-columns:1fr}
        .cta-box{grid-template-columns:1fr;padding:28px 22px}
        .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}
        .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
    }
    @media(max-width:520px){
        .container{width:calc(100% - 28px)}
        .nav-search input{padding-left:39px;padding-right:88px}
        .search-submit{padding:0 12px;font-size:13px}
        h1{font-size:31px}.section-title{font-size:26px}
        .hero-actions .btn{width:100%}
        .preview-board{padding:18px}
        .filter-panel{padding:17px}.filter-grid{grid-template-columns:1fr}.filter-grid .filter-action{grid-column:auto}
        .filter-grid .filter-action .btn{width:100%}
        .main-topic{padding:22px}.main-topic h3{font-size:23px}
        .strip-item{grid-template-columns:52px 1fr;gap:12px}.strip-index{width:52px;height:46px;font-size:17px}.strip-date{grid-column:2}
        .notify-form .form-line{grid-template-columns:1fr}
        .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
    }