/* roulang page: index */
:root{
      --blue:#1769d1;
      --blue-dark:#103d78;
      --blue-soft:#eaf3ff;
      --ink:#142642;
      --muted:#6d7b91;
      --line:#dce6f2;
      --paper:#ffffff;
      --bg:#f5f8fc;
      --orange:#ee8a35;
      --shadow:0 18px 48px rgba(31,73,125,.09);
      --shadow-hover:0 22px 56px rgba(31,73,125,.15);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
    .site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:relative;z-index:10}
    .brand-row{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:-.5px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--blue);color:white;display:grid;place-items:center;box-shadow:0 8px 18px rgba(23,105,209,.24)}
    .brand-mark:after{content:"";display:block;width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:11px solid #fff;margin-left:3px}
    .search-box{max-width:360px;flex:1;margin-left:auto;position:relative}
    .search-box input{width:100%;height:42px;border:1px solid var(--line);border-radius:11px;background:#fbfdff;padding:0 16px;outline:0;transition:.2s}
    .search-box input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,209,.12)}
    .header-links{display:flex;gap:18px;color:var(--muted);font-size:13px;white-space:nowrap}
    .header-links a:hover{color:var(--blue)}
    .channel-row{border-top:1px solid #edf2f8}
    .channel-nav{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scrollbar-width:none}
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{padding:7px 15px;border-radius:9px;color:#52627a;font-size:14px;white-space:nowrap;transition:.2s}
    .channel-link:hover,.channel-link:focus{background:var(--blue-soft);color:var(--blue);outline:0}
    .channel-link.active{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(23,105,209,.2)}
    .hero{padding:76px 0 68px;background:linear-gradient(135deg,#fff 0%,#f1f7ff 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(23,105,209,.08);border-radius:50%;right:-170px;top:-210px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:72px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.12;letter-spacing:-2.4px;margin:14px 0 22px;font-weight:900;color:var(--blue-dark)}
    .hero-copy{font-size:17px;color:#53647d;max-width:650px}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{min-height:46px;padding:0 21px;border-radius:11px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 9px 18px rgba(23,105,209,.2)}
    .btn-primary:hover{background:#0d58b7;transform:translateY(-2px);box-shadow:0 13px 24px rgba(23,105,209,.25)}
    .btn-secondary{background:#fff;border-color:#cbd9e9;color:var(--blue-dark)}
    .btn-secondary:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
    .btn:focus,input:focus,textarea:focus,.faq-question:focus{outline:3px solid rgba(23,105,209,.24);outline-offset:2px}
    .dashboard{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
    .dashboard-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
    .panel-title{font-weight:800;color:var(--blue-dark)}
    .live-dot{font-size:12px;color:#c76a1f;display:flex;align-items:center;gap:6px}
    .live-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:18px;background:#f6f9fd;border:1px solid #e7eef7;border-radius:14px}
    .metric span{font-size:12px;color:var(--muted)}
    .metric strong{display:block;font-size:32px;line-height:1.2;margin:5px 0;color:var(--blue-dark);font-variant-numeric:tabular-nums}
    .meter{height:7px;background:#e7eef7;border-radius:8px;overflow:hidden;margin-top:20px}
    .meter i{display:block;height:100%;background:var(--blue);border-radius:8px}
    .section{padding:88px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    h2{font-size:32px;line-height:1.2;margin:8px 0 0;color:var(--blue-dark);letter-spacing:-1px}
    .section-intro{max-width:610px;color:var(--muted);font-size:15px}
    .matrix{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .matrix-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .content-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);transition:.25s;position:relative;overflow:hidden}
    .content-card:hover{transform:translateY(-5px);border-color:#9fc2eb;box-shadow:var(--shadow-hover)}
    .feature-card{min-height:300px;background:linear-gradient(145deg,#eef6ff,#fff)}
    .card-number{font-size:13px;color:var(--blue);font-weight:800;letter-spacing:1px}
    .card-title{font-size:23px;font-weight:800;color:var(--blue-dark);margin:28px 0 9px}
    .card-text{font-size:14px;color:var(--muted);margin:0}
    .card-arrow{position:absolute;right:24px;bottom:22px;color:var(--blue);font-size:22px}
    .mini-card{min-height:140px}
    .mini-card .card-title{font-size:18px;margin:18px 0 5px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700}
    .comparison{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}
    .compare-card.highlight{border-top:4px solid var(--blue)}
    .compare-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
    .compare-head h3{margin:0;font-size:20px;color:var(--blue-dark)}
    .compare-list{list-style:none;margin:0;padding:0}
    .compare-list li{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid #edf2f7;font-size:14px;color:var(--muted)}
    .compare-list b{color:var(--blue-dark)}
    .calendar-wrap{display:grid;grid-template-columns:1fr .7fr;gap:18px}
    .news-list,.side-note{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .news-item{display:flex;align-items:center;gap:18px;padding:18px 24px;border-bottom:1px solid #edf2f7}
    .news-item:last-child{border-bottom:0}
    .news-date{font-size:12px;color:var(--blue);font-weight:800;width:56px}
    .news-item h3{margin:0;font-size:15px;color:var(--blue-dark)}
    .news-item p{margin:3px 0 0;color:var(--muted);font-size:13px}
    .side-note{padding:26px;background:#edf5ff}
    .side-note h3{margin:0 0 12px;color:var(--blue-dark);font-size:20px}
    .side-note p{color:#60728b;font-size:14px;margin:0 0 18px}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:46px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
    .faq-question{width:100%;border:0;background:#fff;padding:19px 22px;text-align:left;color:var(--blue-dark);font-weight:700;display:flex;justify-content:space-between;align-items:center}
    .faq-question span:last-child{color:var(--blue);font-size:22px}
    .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 span:last-child{transform:rotate(45deg)}
    .feedback{background:var(--blue-dark);color:#fff;border-radius:24px;padding:42px;display:grid;grid-template-columns:.8fr 1.2fr;gap:52px}
    .feedback h2{color:#fff}.feedback p{color:#bfd0e8}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field.full{grid-column:1/-1}
    label{display:block;font-size:13px;color:#dbe8f8;margin-bottom:6px}
    input,textarea{width:100%;border:1px solid #49658b;background:#173f76;color:#fff;border-radius:10px;padding:12px 14px}
    input::placeholder,textarea::placeholder{color:#9db1ce}
    textarea{min-height:108px;resize:vertical}
    .feedback .btn-primary{background:#fff;color:var(--blue-dark);box-shadow:none}
    .feedback .btn-primary:hover{background:#eaf3ff}
    .form-note{font-size:12px;color:#a8bdd8;margin:12px 0 0}
    .site-footer{background:#eaf0f7;border-top:1px solid var(--line);padding:42px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:35px}
    .footer-brand{font-weight:800;color:var(--blue-dark);font-size:18px}
    .footer-text{color:var(--muted);font-size:13px;max-width:320px}
    .footer-title{font-size:13px;font-weight:800;color:var(--blue-dark);margin-bottom:12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px 18px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{border-top:1px solid #d7e1ec;margin-top:30px;padding-top:20px;color:#8290a2;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    .age-layer{position:fixed;inset:0;background:rgba(16,37,68,.38);z-index:50;display:grid;place-items:center;padding:20px}
    .age-layer.hidden{display:none}
    .age-panel{width:min(510px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:0 25px 80px rgba(12,38,75,.22)}
    .age-panel h2{margin-top:14px}
    .age-panel p{color:var(--muted);font-size:14px}
    .age-actions{display:flex;gap:11px;margin-top:23px}.age-actions .btn{flex:1}
    @media(max-width:900px){.hero-grid,.calendar-wrap,.faq-layout,.feedback{grid-template-columns:1fr;gap:30px}.hero{padding:58px 0}.matrix{grid-template-columns:1fr}.section{padding:65px 0}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:640px){.container{width:min(100% - 28px,1200px)}.brand-row{min-height:64px;gap:10px}.brand{font-size:15px}.brand-mark{width:32px;height:32px}.search-box{max-width:42px}.search-box input{font-size:0;padding:0 10px}.header-links{display:none}h1{font-size:38px}.hero-copy{font-size:15px}.section-heading{display:block}.section-heading .section-intro{margin-top:12px}.matrix-side,.comparison,.form-grid{grid-template-columns:1fr}.feature-card{min-height:245px}.feedback{padding:28px 20px}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}.age-panel{padding:26px 21px}.age-actions{flex-direction:column}.news-item{padding:16px}.news-date{width:42px}.metric strong{font-size:27px}}

/* roulang page: category2 */
:root{
      --blue:#1769d1;
      --blue-dark:#103d78;
      --blue-soft:#eaf3ff;
      --ink:#142642;
      --muted:#6d7b91;
      --line:#dce6f2;
      --paper:#fff;
      --bg:#f5f8fc;
      --orange:#ee8a35;
      --shadow:0 18px 48px rgba(31,73,125,.09);
      --shadow-hover:0 22px 56px rgba(31,73,125,.15);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
    .site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}
    .brand-row{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:-.5px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--blue);display:grid;place-items:center;box-shadow:0 8px 18px rgba(23,105,209,.24)}
    .brand-mark:after{content:"";display:block;width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:11px solid #fff;margin-left:3px}
    .search-box{max-width:360px;flex:1;margin-left:auto}
    .search-box input{width:100%;height:42px;border:1px solid var(--line);border-radius:11px;background:#fbfdff;color:var(--ink);padding:0 16px;outline:0;transition:.2s}
    .search-box input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,209,.12)}
    .header-links{display:flex;gap:18px;color:var(--muted);font-size:13px;white-space:nowrap}
    .header-links a:hover{color:var(--blue)}
    .channel-row{border-top:1px solid #edf2f8}
    .channel-nav{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scrollbar-width:none}
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{padding:8px 15px;border-radius:8px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
    .channel-link:hover{background:var(--blue-soft);color:var(--blue)}
    .channel-link.active{background:var(--blue);color:#fff;box-shadow:0 7px 14px rgba(23,105,209,.18)}
    .page-intro{padding:68px 0 54px;background:linear-gradient(135deg,#fff,#f0f6ff);border-bottom:1px solid var(--line)}
    .intro-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:end}
    .eyebrow,.section-kicker{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:1.8px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.16;letter-spacing:-2px;color:var(--blue-dark);margin:14px 0 20px;font-weight:850}
    h2{font-size:30px;line-height:1.25;color:var(--blue-dark);margin:10px 0 12px}
    .intro-copy{font-size:17px;color:#53647d;max-width:680px}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:20px}
    .crumbs a:hover{color:var(--blue)}
    .summary-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
    .summary-label{font-size:12px;color:var(--muted);letter-spacing:1px}
    .summary-number{font-size:42px;line-height:1;color:var(--blue-dark);font-weight:850;margin:8px 0 17px}
    .summary-line{height:7px;background:#e8f0fa;border-radius:10px;overflow:hidden}
    .summary-line i{display:block;height:100%;width:76%;background:var(--blue);border-radius:10px}
    .summary-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:10px}
    .section{padding:82px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-intro{max-width:610px;color:var(--muted);font-size:15px}
    .filter-bar{display:flex;gap:10px;align-items:center;overflow-x:auto;padding:5px 0 18px;scrollbar-width:none}
    .filter-bar::-webkit-scrollbar{display:none}
    .filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);padding:9px 15px;border-radius:9px;white-space:nowrap;transition:.2s}
    .filter-btn:hover,.filter-btn.active{color:var(--blue);border-color:#9fc2eb;background:var(--blue-soft)}
    .filter-btn:focus,.btn:focus,.faq-question:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(23,105,209,.24);outline-offset:2px}
    .matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:.25s;min-height:220px}
    .topic-card:hover{transform:translateY(-5px);border-color:#9fc2eb;box-shadow:var(--shadow-hover)}
    .topic-card.feature{grid-column:span 2;min-height:270px;background:linear-gradient(135deg,#eaf3ff,#fff)}
    .topic-card:before{content:"";position:absolute;right:-30px;top:-45px;width:150px;height:150px;border:1px solid rgba(23,105,209,.12);border-radius:50%}
    .topic-card.feature:after{content:"02";position:absolute;right:28px;bottom:16px;color:rgba(23,105,209,.08);font-size:82px;font-weight:900;line-height:1}
    .card-number{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:1px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700}
    .topic-card h3{font-size:23px;color:var(--blue-dark);margin:20px 0 8px}
    .topic-card p{font-size:14px;color:var(--muted);max-width:560px}
    .card-link{color:var(--blue);font-weight:700;font-size:14px;display:inline-flex;gap:8px;align-items:center;margin-top:14px}
    .card-link:hover{gap:13px}
    .status{color:var(--orange);font-size:12px;font-weight:700}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}
    .compare-card.highlight{border-top:4px solid var(--blue)}
    .compare-card h3{color:var(--blue-dark);font-size:20px;margin:0 0 20px}
    .compare-row{padding:16px 0;border-bottom:1px solid #edf2f7}
    .compare-row:last-child{border-bottom:0}
    .compare-row label{display:flex;justify-content:space-between;color:var(--muted);font-size:14px;margin-bottom:8px}
    .compare-row b{color:var(--blue-dark)}
    .bar{height:7px;background:#e9f0f8;border-radius:10px;overflow:hidden}
    .bar i{display:block;height:100%;background:var(--blue);border-radius:10px}
    .bar.orange i{background:var(--orange)}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px}
    .faq-note{color:var(--muted);font-size:15px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
    .faq-question{width:100%;border:0;background:#fff;padding:18px 22px;text-align:left;color:var(--blue-dark);font-weight:700;display:flex;justify-content:space-between;align-items:center;min-height:58px}
    .faq-question span:last-child{color:var(--blue);font-size:22px;transition:.2s}
    .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 span:last-child{transform:rotate(45deg)}
    .feedback{background:var(--blue-dark);color:#fff;padding:54px 0}
    .feedback-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:54px;align-items:start}
    .feedback h2{color:#fff}
    .feedback-copy{color:#b9cbe2;font-size:15px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-field{display:flex;flex-direction:column;gap:6px}
    .form-field.full{grid-column:span 2}
    .form-field label{font-size:13px;color:#d8e5f4}
    .form-field input,.form-field textarea,.form-field select{width:100%;border:1px solid #49658b;background:#173f76;color:#fff;border-radius:10px;padding:11px 13px;min-height:44px}
    .form-field textarea{min-height:108px;resize:vertical}
    .form-field input::placeholder,.form-field textarea::placeholder{color:#9db1ce}
    .form-note{font-size:12px;color:#a8bdd8;margin:12px 0 0}
    .btn{min-height:46px;padding:0 21px;border-radius:11px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 9px 18px rgba(23,105,209,.2)}
    .btn-primary:hover{background:#0d58b7;transform:translateY(-2px)}
    .feedback .btn-primary{background:#fff;color:var(--blue-dark);box-shadow:none}
    .feedback .btn-primary:hover{background:#eaf3ff}
    .site-footer{background:#eaf0f7;border-top:1px solid var(--line);padding:42px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:35px}
    .footer-brand{font-weight:800;color:var(--blue-dark);font-size:18px}
    .footer-text{color:var(--muted);font-size:13px;max-width:320px}
    .footer-title{font-weight:800;color:var(--blue-dark);font-size:14px;margin-bottom:12px}
    .footer-links{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid #d5e1ee;margin-top:30px;padding-top:20px;color:#8290a3;font-size:12px}
    .age-layer{position:fixed;inset:0;background:rgba(20,38,66,.38);z-index:40;display:grid;place-items:center;padding:20px}
    .age-box{width:min(480px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:0 30px 80px rgba(16,61,120,.22)}
    .age-box h2{font-size:27px;margin:15px 0 10px}
    .age-box p{font-size:14px;color:var(--muted)}
    .age-actions{display:flex;gap:10px;margin-top:22px}
    .age-actions .btn{flex:1}
    .age-legal{font-size:12px;color:#8b98aa;margin-top:16px}
    @media(max-width:900px){
      .intro-grid,.feedback-grid{grid-template-columns:1fr;gap:30px}
      .faq-layout{grid-template-columns:1fr;gap:25px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:680px){
      .container{width:min(100% - 28px,1200px)}
      .brand-row{min-height:66px;gap:10px}
      .brand{font-size:16px;gap:8px}
      .brand-mark{width:32px;height:32px;border-radius:9px}
      .brand-mark:after{border-top-width:6px;border-bottom-width:6px;border-left-width:9px}
      .search-box{max-width:42px;margin-left:auto}
      .search-box input{width:42px;padding:0 10px;color:transparent}
      .search-box input::placeholder{color:transparent}
      .header-links{display:none}
      .page-intro{padding:48px 0 40px}
      h1{font-size:36px;letter-spacing:-1px}
      h2{font-size:25px}
      .section{padding:58px 0}
      .section-heading{display:block;margin-bottom:22px}
      .matrix,.compare-grid{grid-template-columns:1fr}
      .topic-card.feature{grid-column:span 1}
      .form-grid{grid-template-columns:1fr}
      .form-field.full{grid-column:span 1}
      .copyright,.footer-grid{display:block}
      .copyright span{display:block;margin-top:8px}
      .footer-grid>div{margin-bottom:25px}
      .age-box{padding:26px 22px}
      .age-actions{flex-direction:column}
    }

/* roulang page: category1 */
:root{
      --blue:#1769d1;
      --blue-dark:#103d78;
      --blue-soft:#eaf3ff;
      --ink:#142642;
      --muted:#6d7b91;
      --line:#dce6f2;
      --paper:#ffffff;
      --bg:#f5f8fc;
      --orange:#ee8a35;
      --shadow:0 18px 48px rgba(31,73,125,.09);
      --shadow-hover:0 22px 56px rgba(31,73,125,.15);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.7}
    a{text-decoration:none;color:inherit}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
    .site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:relative;z-index:10}
    .brand-row{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;letter-spacing:-.5px;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--blue);display:grid;place-items:center;box-shadow:0 8px 18px rgba(23,105,209,.24)}
    .brand-mark:after{content:"";display:block;width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:11px solid #fff;margin-left:3px}
    .search-box{max-width:360px;flex:1;margin-left:auto}
    .search-box input{width:100%;height:42px;border:1px solid var(--line);border-radius:11px;background:#fbfdff;padding:0 16px;color:var(--ink);outline:0;transition:.2s}
    .search-box input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(23,105,209,.12)}
    .header-links{display:flex;gap:18px;color:var(--muted);font-size:13px;white-space:nowrap}
    .header-links a{transition:.2s}
    .header-links a:hover{color:var(--blue)}
    .channel-row{border-top:1px solid #edf2f8}
    .channel-nav{display:flex;align-items:center;gap:8px;min-height:52px;overflow-x:auto;scrollbar-width:none}
    .channel-nav::-webkit-scrollbar{display:none}
    .channel-link{padding:8px 16px;border-radius:8px;color:var(--muted);font-size:14px;white-space:nowrap;transition:.2s}
    .channel-link:hover{background:var(--blue-soft);color:var(--blue)}
    .channel-link.active{background:var(--blue);color:#fff;box-shadow:0 6px 14px rgba(23,105,209,.18)}
    .page-hero{padding:54px 0 48px;background:linear-gradient(135deg,#fff 0%,#f1f7ff 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(23,105,209,.08);border-radius:50%;right:-150px;top:-230px}
    .hero-inner{position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1.8px}
    .breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--blue)}
    .hero-title{font-size:clamp(32px,5vw,56px);line-height:1.16;letter-spacing:-1.5px;color:var(--blue-dark);font-weight:850;margin:0 0 18px;max-width:780px}
    .hero-summary{font-size:16px;color:#53647d;max-width:700px;margin:0}
    .hero-bottom{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-top:34px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{min-height:46px;padding:0 21px;border-radius:11px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 9px 18px rgba(23,105,209,.2)}
    .btn-primary:hover{background:#0d58b7;transform:translateY(-2px);box-shadow:0 13px 24px rgba(23,105,209,.25)}
    .btn-secondary{background:#fff;border-color:#cbd9e9;color:var(--blue-dark)}
    .btn-secondary:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
    .btn:focus,input:focus,textarea:focus,select:focus,.faq-question:focus{outline:3px solid rgba(23,105,209,.24);outline-offset:2px}
    .metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 18px;box-shadow:var(--shadow)}
    .metric-label{font-size:12px;color:var(--muted)}
    .metric-value{font-size:26px;line-height:1.2;font-weight:850;color:var(--blue-dark);margin-top:3px}
    .metric-value small{font-size:12px;color:var(--orange);font-weight:700;margin-left:4px}
    .section{padding:82px 0}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-heading h2{font-size:30px;line-height:1.25;margin:5px 0 0;color:var(--blue-dark);letter-spacing:-.6px}
    .section-intro{max-width:560px;color:var(--muted);font-size:15px;margin:0}
    .index-layout{display:grid;grid-template-columns:3fr 9fr;gap:28px;align-items:start}
    .filter-panel,.content-card,.notice-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .filter-panel{padding:24px;position:sticky;top:20px}
    .panel-title{font-weight:800;color:var(--blue-dark);font-size:18px;margin:0}
    .panel-caption{font-size:13px;color:var(--muted);margin:6px 0 22px}
    .filter-label{font-size:12px;color:var(--muted);font-weight:700;margin:20px 0 8px;display:block}
    .filter-list{display:grid;gap:7px}
    .filter-option{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:9px;color:#53647d;font-size:14px;transition:.2s}
    .filter-option:hover{background:var(--blue-soft);color:var(--blue)}
    .filter-option.active{background:var(--blue-soft);color:var(--blue);font-weight:700}
    .filter-count{font-size:12px;color:var(--muted)}
    .status-line{border-top:1px solid #edf2f7;margin-top:20px;padding-top:17px;color:var(--muted);font-size:12px}
    .status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#32a66b;margin-right:6px}
    .content-list{display:grid;gap:15px}
    .content-card{padding:18px;display:grid;grid-template-columns:172px 1fr auto;gap:22px;align-items:center;transition:.25s}
    .content-card:hover{transform:translateY(-4px);border-color:#9fc2eb;box-shadow:var(--shadow-hover)}
    .cover{height:126px;border-radius:12px;background:#dcecff;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:14px;color:#fff}
    .cover:before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,#1769d1 0%,#103d78 58%,#263b61 100%)}
    .cover:after{content:"";position:absolute;width:100px;height:100px;border:1px solid rgba(255,255,255,.28);border-radius:50%;right:-25px;top:-24px}
    .cover strong,.cover span{position:relative;z-index:1}
    .cover strong{font-size:25px;line-height:1}
    .cover span{font-size:11px;margin-left:8px;opacity:.8}
    .card-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:8px}
    .tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700}
    .hot-tag{background:#fff0e5;color:#c96a25}
    .item-title{font-size:19px;color:var(--blue-dark);font-weight:800;margin:0 0 6px}
    .item-text{font-size:13px;color:var(--muted);margin:0;max-width:520px}
    .item-time{font-size:12px;color:var(--muted);margin-top:10px}
    .card-arrow{color:var(--blue);font-size:23px;transition:.2s}
    .content-card:hover .card-arrow{transform:translateX(4px)}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}
    .compare-card.highlight{border-top:4px solid var(--blue)}
    .compare-head{display:flex;justify-content:space-between;gap:15px;align-items:start;margin-bottom:20px}
    .compare-head h3{color:var(--blue-dark);font-size:20px;margin:0}
    .compare-list{list-style:none;margin:0;padding:0}
    .compare-list li{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid #edf2f7;font-size:14px;color:var(--muted)}
    .compare-list li:last-child{border-bottom:0}
    .compare-list b{color:var(--blue-dark)}
    .bar-row{margin-top:18px}
    .bar-label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px}
    .bar-track{height:7px;background:#edf3fa;border-radius:8px;overflow:hidden}
    .bar-fill{height:100%;background:var(--blue);border-radius:8px}
    .notice-card{padding:25px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:#eef6ff}
    .notice-card h3{color:var(--blue-dark);margin:0 0 5px;font-size:19px}
    .notice-card p{color:var(--muted);font-size:14px;margin:0}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:46px}
    .faq-list{display:grid;gap:10px}
    .faq-item{overflow:hidden}
    .faq-question{width:100%;border:0;background:#fff;padding:19px 22px;text-align:left;color:var(--blue-dark);font-weight:700;display:flex;justify-content:space-between;align-items:center;min-height:58px}
    .faq-question span:last-child{color:var(--blue);font-size:22px;transition:.2s}
    .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 span:last-child{transform:rotate(45deg)}
    .feedback{padding:34px;background:var(--blue-dark);border-radius:var(--radius);color:#fff}
    .feedback-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
    .feedback h2{font-size:30px;line-height:1.25;margin:7px 0 13px}
    .feedback-copy{color:#b9cbe2;font-size:14px;max-width:430px}
    .feedback-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
    .feedback-tags span{font-size:12px;color:#dbe9fb;border:1px solid #5578a5;border-radius:6px;padding:4px 8px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .form-field label{display:block;color:#dbe9fb;font-size:13px;margin-bottom:6px}
    .form-field.full{grid-column:1/-1}
    .feedback input,.feedback textarea{width:100%;border:1px solid #49658b;background:#173f76;color:#fff;border-radius:10px;padding:12px 14px;outline:0}
    .feedback input::placeholder,.feedback textarea::placeholder{color:#9db1ce}
    .feedback textarea{min-height:108px;resize:vertical}
    .feedback .btn-primary{background:#fff;color:var(--blue-dark);box-shadow:none}
    .feedback .btn-primary:hover{background:#eaf3ff}
    .form-note{font-size:12px;color:#a8bdd8;margin:12px 0 0}
    .site-footer{background:#eaf0f7;border-top:1px solid var(--line);padding:42px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:35px}
    .footer-brand{font-weight:800;color:var(--blue-dark);font-size:18px}
    .footer-text{color:var(--muted);font-size:13px;max-width:320px}
    .footer-title{font-size:13px;color:var(--blue-dark);font-weight:800;margin-bottom:12px}
    .footer-links{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .copyright{border-top:1px solid #d5e0ec;margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8190a3;font-size:12px}
    .age-overlay{position:fixed;inset:0;background:rgba(20,38,66,.48);z-index:30;display:flex;align-items:center;justify-content:center;padding:20px}
    .age-modal{max-width:480px;width:100%;background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:0 25px 80px rgba(16,61,120,.25)}
    .age-icon{width:48px;height:48px;border-radius:14px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:900;font-size:20px;margin-bottom:18px}
    .age-modal h2{color:var(--blue-dark);font-size:25px;line-height:1.3;margin:0 0 10px}
    .age-modal p{color:var(--muted);font-size:14px;margin:0 0 20px}
    .age-actions{display:flex;gap:10px}
    .age-actions .btn{flex:1}
    .age-note{font-size:12px;color:#8997a9;margin-top:17px}
    .age-note a{color:var(--blue)}
    .hidden{display:none!important}
    @media(max-width:900px){
      .brand-row{gap:15px}
      .header-links{display:none}
      .hero-bottom{align-items:stretch;flex-direction:column}
      .metric-strip{grid-template-columns:repeat(2,1fr)}
      .index-layout{grid-template-columns:1fr}
      .filter-panel{position:static}
      .filter-list{grid-template-columns:repeat(3,1fr)}
      .faq-layout{grid-template-columns:1fr;gap:25px}
      .feedback-grid{grid-template-columns:1fr;gap:28px}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1200px)}
      .brand-row{min-height:64px}
      .brand{font-size:16px;gap:8px}
      .brand-mark{width:32px;height:32px;border-radius:9px}
      .brand-mark:after{border-top-width:6px;border-bottom-width:6px;border-left-width:9px}
      .search-box{max-width:145px}
      .search-box input{height:38px;padding:0 10px;font-size:12px}
      .page-hero{padding:39px 0 34px}
      .hero-title{font-size:34px}
      .hero-summary{font-size:14px}
      .section{padding:58px 0}
      .section-heading{display:block;margin-bottom:22px}
      .section-heading h2{font-size:25px;margin-bottom:10px}
      .metric-strip{gap:8px}
      .metric{padding:13px}
      .metric-value{font-size:22px}
      .filter-list{grid-template-columns:1fr 1fr}
      .content-card{grid-template-columns:92px 1fr;gap:14px;padding:13px}
      .cover{height:102px}
      .content-card .card-arrow{grid-column:2;grid-row:1;justify-self:end;margin-top:-8px}
      .item-title{font-size:16px;padding-right:20px}
      .item-text{font-size:12px;line-height:1.55}
      .item-time{font-size:11px}
      .compare-grid{grid-template-columns:1fr}
      .notice-card{display:block}
      .notice-card .btn{margin-top:17px;width:100%}
      .form-grid{grid-template-columns:1fr}
      .form-field.full{grid-column:auto}
      .feedback{padding:25px 20px}
      .feedback h2{font-size:25px}
      .copyright,.footer-grid{display:grid;grid-template-columns:1fr;gap:8px}
      .copyright{margin-top:25px}
      .age-modal{padding:25px 21px}
      .age-actions{flex-direction:column}
    }