/* roulang page: index */
:root{
      --ink:#15243d;
      --muted:#65738b;
      --blue:#2864d7;
      --blue-dark:#174aa9;
      --blue-soft:#edf4ff;
      --peach:#efaa8a;
      --peach-soft:#fff3ed;
      --line:#dfe7f2;
      --paper:#ffffff;
      --canvas:#f7faff;
      --shadow:0 18px 48px rgba(37,77,135,.10);
      --shadow-sm:0 8px 24px rgba(37,77,135,.08);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--canvas);color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{text-decoration:none;color:inherit}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,250,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,231,242,.88)}
    .nav-shell{height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.03em}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(145deg,#2d70e5,#7da9f4);position:relative;box-shadow:0 7px 16px rgba(40,100,215,.24)}
    .brand-mark:after{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:#ffd0bd;right:6px;top:6px}
    .brand-text{font-size:15px;line-height:1.15}
    .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:600;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-link{font-size:13px;color:var(--muted);padding:9px 12px;border-radius:10px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .nav-tools{display:flex;align-items:center;gap:9px}
    .search-box{height:38px;width:142px;display:flex;align-items:center;gap:7px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#9aa7bb;font-size:12px}
    .shortcut{margin-left:auto;padding:1px 5px;border:1px solid #e4e9f1;border-radius:5px;color:#91a0b5;font-size:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:11px;padding:11px 17px;font-size:13px;font-weight:700;transition:.2s;border:1px solid transparent}
    .btn-primary{color:#fff;background:var(--blue);box-shadow:0 8px 18px rgba(40,100,215,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(40,100,215,.26)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#cbdafa}
    .btn-secondary:hover{background:var(--blue-soft);border-color:#a8c2f5}
    .text-link{color:var(--blue);font-size:13px;font-weight:700}
    .text-link:hover{text-decoration:underline}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--blue)}
    .hero{padding:82px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:#e8f1ff;right:-130px;top:-130px;filter:blur(2px);z-index:-1}
    .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--peach);border-radius:5px}
    h1{font-size:clamp(38px,5vw,62px);line-height:1.18;letter-spacing:-.055em;margin:18px 0 22px;max-width:700px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:620px;margin:0 0 29px}
    .hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
    .hero-notes{display:flex;gap:22px;flex-wrap:wrap;margin-top:32px;color:var(--muted);font-size:12px}
    .hero-notes span{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;background:#63b99a;border-radius:50%;display:inline-block}
    .observe-panel{background:var(--paper);border:1px solid var(--line);border-radius:26px;padding:28px;box-shadow:var(--shadow);position:relative}
    .panel-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:27px}
    .panel-label{font-size:12px;color:var(--muted)}
    .panel-title{font-size:21px;font-weight:800;margin-top:4px}
    .panel-state{font-size:11px;color:#318d72;background:#eaf8f2;border-radius:20px;padding:5px 10px}
    .meter-main{display:flex;align-items:center;gap:22px;padding:18px 0 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .ring{width:100px;height:100px;border-radius:50%;background:conic-gradient(var(--blue) 0 72%,#e9f0fb 72% 100%);display:grid;place-items:center;flex:none}
    .ring:after{content:"";width:72px;height:72px;background:#fff;border-radius:50%;position:absolute}
    .ring b{position:relative;z-index:1;font-size:20px}
    .meter-main strong{font-size:19px;display:block;margin-bottom:5px}
    .meter-main p{font-size:12px;color:var(--muted);margin:0}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
    .tag{font-size:11px;color:#50617b;background:#f1f5fa;border:1px solid #e5ebf3;border-radius:9px;padding:5px 9px}
    .tag.peach{color:#ad6549;background:var(--peach-soft);border-color:#f8d9cc}
    .section{padding:92px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:31px}
    .section-head h2{font-size:clamp(28px,3.2vw,40px);line-height:1.25;letter-spacing:-.04em;margin:10px 0 0}
    .section-head p{color:var(--muted);font-size:14px;max-width:490px;margin:0}
    .series-nav{background:#fff;border:1px solid var(--line);border-radius:18px;padding:15px;display:flex;gap:10px;align-items:center;box-shadow:var(--shadow-sm);overflow:auto}
    .series-nav a{white-space:nowrap;padding:11px 17px;border-radius:10px;color:var(--muted);font-size:13px}
    .series-nav a:hover,.series-nav a.active{background:var(--blue);color:#fff}
    .dashboard{display:grid;grid-template-columns:1.45fr .85fr .85fr .85fr;gap:16px;align-items:stretch}
    .metric-card,.module-card,.compare-box,.faq-item,.info-list,.contact-panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .metric-card{border-radius:18px;padding:25px;min-height:164px}
    .metric-card.featured{background:#173d82;color:#fff;border-color:#173d82;position:relative;overflow:hidden}
    .metric-card.featured:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(255,255,255,.16);border-radius:50%;right:-45px;bottom:-85px}
    .metric-name{font-size:12px;color:var(--muted);display:flex;justify-content:space-between}
    .featured .metric-name{color:#c3d6f6}
    .metric-value{font-size:30px;font-weight:800;letter-spacing:-.04em;margin:16px 0 4px}
    .metric-desc{font-size:12px;color:var(--muted)}
    .featured .metric-desc{color:#d0def5}
    .bar{height:6px;background:#e9f0f9;border-radius:9px;margin-top:18px;overflow:hidden}
    .bar i{display:block;height:100%;border-radius:9px;background:var(--blue)}
    .featured .bar{background:rgba(255,255,255,.18)}
    .featured .bar i{background:#9cc0ff}
    .module-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:17px}
    .module-card{border-radius:20px;padding:27px;min-height:205px;transition:.22s}
    .module-card:hover,.compare-box:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .module-card.large{grid-row:span 2;background:linear-gradient(145deg,#fff,#f2f7ff)}
    .module-card h3{font-size:20px;margin:13px 0 8px}
    .module-card p{font-size:13px;color:var(--muted);margin:0;max-width:470px}
    .module-card .module-index{color:var(--blue);font-size:12px;font-weight:800}
    .module-list{margin:20px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
    .module-list li{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}
    .module-list b{color:var(--ink);font-weight:700}
    .comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .compare-box{border-radius:20px;padding:27px}
    .compare-box.highlight{border-top:4px solid var(--blue)}
    .compare-box.soft{border-top:4px solidvar(--blue)}
    .compare-box.soft{border-top:4px solid var(--peach)}
    .compare-box h3{font-size:18px;margin:0 0 8px}
    .compare-box p{font-size:13px;color:var(--muted);margin:0 0 18px}
    .compare-row{display:grid;grid-template-columns:90px 1fr;gap:14px;padding:13px 0;border-top:1px solid var(--line);font-size:12px}
    .compare-row strong{color:var(--blue);font-weight:700}
    .compare-row span{color:var(--muted)}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:58px;align-items:start}
    .faq-intro p{font-size:14px;color:var(--muted);margin:18px 0 24px}
    .faq-tags{display:flex;flex-wrap:wrap;gap:8px}
    .faq-item{border-radius:15px;margin-bottom:11px;overflow:hidden;transition:.2s}
    .faq-item:hover{border-color:#bdd0f0}
    .faq-question{width:100%;background:#fff;border:0;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:18px 20px;color:var(--ink);font-weight:700;font-size:14px}
    .faq-question span:last-child{color:var(--blue);font-size:20px;font-weight:400;transition:.2s}
    .faq-answer{display:none;padding:0 20px 18px;color:var(--muted);font-size:13px;line-height:1.8}
    .faq-item.open{border-left:3px solid var(--blue);background:var(--blue-soft)}
    .faq-item.open .faq-question{background:var(--blue-soft)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .contact-section{padding:92px 0}
    .contact-panel{border-radius:26px;padding:42px;display:grid;grid-template-columns:1fr .9fr;gap:55px;background:linear-gradient(120deg,#edf5ff,#fff9f6)}
    .contact-panel h2{font-size:clamp(28px,3vw,39px);line-height:1.25;letter-spacing:-.04em;margin:13px 0}
    .contact-panel p{color:var(--muted);font-size:14px;max-width:470px}
    .trust-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
    .trust-list span{background:#fff;border:1px solid var(--line);border-radius:9px;padding:7px 10px;color:#5c6b82;font-size:11px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:12px;font-weight:700;color:#40516e}
    .field input,.field select,.field textarea{width:100%;border:1px solid #d6e0ed;background:#fff;border-radius:10px;padding:10px 12px;color:var(--ink);font-size:13px;outline:0;transition:.2s}
    .field textarea{min-height:82px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#75a0ed;box-shadow:0 0 0 4px rgba(40,100,215,.1)}
    .form-tip{font-size:11px;color:var(--muted);margin:10px 0 0}
    .form-message{display:none;color:#318d72;font-size:12px;margin-top:10px}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:53px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{font-size:12px;color:var(--muted);max-width:270px;margin:17px 0 0}
    .footer-title{font-size:12px;font-weight:800;margin:5px 0 15px}
    .footer-links{display:flex;flex-direction:column;gap:9px}
    .footer-links a{font-size:12px;color:var(--muted);transition:.2s}
    .footer-links a:hover{color:var(--blue);padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:40px;padding-top:20px;color:#8b98ab;font-size:11px}
    .notice{font-size:11px;color:#8b98ab}
    @media(max-width:1024px){
      .brand{min-width:220px}
      .nav-links{gap:0}
      .nav-link{padding:8px 8px}
      .search-box{width:110px}
      .hero-grid{gap:35px}
      .dashboard{grid-template-columns:1.4fr 1fr 1fr}
      .metric-card:last-child{grid-column:span 1}
      .contact-panel{gap:32px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,600px)}
      .nav-shell{height:68px}
      .nav-links,.nav-tools .search-box,.nav-tools .btn-secondary{display:none}
      .nav-tools{margin-left:auto}
      .menu-toggle{display:block}
      .nav-shell.menu-open{height:auto;min-height:68px;flex-wrap:wrap;padding:12px 0}
      .nav-shell.menu-open .nav-links{display:flex;order:4;flex-basis:100%;flex-direction:column;align-items:stretch;padding:8px 0 4px;border-top:1px solid var(--line)}
      .nav-shell.menu-open .nav-link{padding:11px 12px}
      .nav-shell.menu-open .nav-tools .search-box{display:flex;position:absolute;right:53px;top:15px;width:105px}
      .brand{min-width:0}
      .brand-text{font-size:13px}
      .hero{padding:58px 0 55px}
      .hero-grid,.comparison,.faq-layout,.contact-panel{grid-template-columns:1fr}
      h1{font-size:39px}
      .hero-copy{font-size:15px}
      .observe-panel{padding:22px}
      .section,.contact-section{padding:65px 0}
      .section-head{display:block;margin-bottom:23px}
      .section-head p{margin-top:12px}
      .dashboard{grid-template-columns:1fr 1fr}
      .metric-card.featured{grid-column:1/-1}
      .module-grid{grid-template-columns:1fr}
      .module-card.large{grid-row:auto}
      .contact-panel{padding:28px 22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}
      .hero-actions{align-items:stretch;flex-direction:column;gap:12px}
      .hero-actions .btn,.hero-actions .text-link{width:100%;text-align:center}
      .hero-notes{gap:12px;flex-direction:column}
      h1{font-size:34px}
      .dashboard{grid-template-columns:1fr}
      .metric-card.featured{grid-column:auto}
      .metric-card{min-height:140px}
      .meter-main{gap:15px}
      .ring{width:82px;height:82px}
      .ring:after{width:59px;height:59px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom .notice{margin-top:8px}
    }

/* roulang page: category1 */
:root{
      --ink:#15243d;
      --muted:#65738b;
      --blue:#2864d7;
      --blue-dark:#174aa9;
      --blue-soft:#edf4ff;
      --peach:#efaa8a;
      --peach-soft:#fff3ed;
      --line:#dfe7f2;
      --paper:#ffffff;
      --canvas:#f7faff;
      --shadow:0 18px 48px rgba(37,77,135,.10);
      --shadow-sm:0 8px 24px rgba(37,77,135,.08);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--canvas);color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{text-decoration:none;color:inherit}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,250,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,231,242,.88)}
    .nav-shell{height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.03em}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(145deg,#2d70e5,#7da9f4);position:relative;box-shadow:0 7px 16px rgba(40,100,215,.24);flex:none}
    .brand-mark:after{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:#ffd0bd;right:6px;top:6px}
    .brand-text{font-size:15px;line-height:1.15}
    .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:600;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-link{font-size:13px;color:var(--muted);padding:9px 12px;border-radius:10px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .nav-tools{display:flex;align-items:center;gap:9px}
    .search-box{height:38px;width:142px;display:flex;align-items:center;gap:7px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#9aa7bb;font-size:12px}
    .search-box kbd{margin-left:auto;border:1px solid #d9e1ed;border-radius:5px;padding:1px 4px;font-size:10px;color:#8c99ac;background:#f8fafc}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:11px;padding:11px 17px;font-size:13px;font-weight:700;transition:.2s;border:1px solid transparent}
    .btn:focus-visible,.nav-link:focus-visible,.text-link:focus-visible,.faq-question:focus-visible{outline:3px solid rgba(40,100,215,.25);outline-offset:3px}
    .btn-primary{color:#fff;background:var(--blue);box-shadow:0 8px 18px rgba(40,100,215,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(40,100,215,.26)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#cbdafa}
    .btn-secondary:hover{background:var(--blue-soft);border-color:#a8c2f5}
    .text-link{color:var(--blue);font-size:13px;font-weight:700}
    .text-link:hover{text-decoration:underline}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--blue)}
    .page-hero{padding:62px 0 48px;background:linear-gradient(110deg,#f7faff 0%,#eef5ff 58%,#fff7f3 100%);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:#8795aa;font-size:12px;margin-bottom:27px}
    .breadcrumb a:hover{color:var(--blue)}
    .hero-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:55px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--peach);border-radius:5px}
    h1{font-size:clamp(34px,5vw,56px);line-height:1.18;letter-spacing:-.055em;margin:14px 0 20px;max-width:780px}
    .hero-intro{color:var(--muted);font-size:16px;max-width:730px;margin:0}
    .hero-aside{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;box-shadow:var(--shadow-sm)}
    .aside-label{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.08em}
    .aside-number{font-size:36px;font-weight:800;color:var(--blue);line-height:1;margin:12px 0 8px}
    .aside-note{font-size:12px;color:var(--muted);margin:0}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
    .tag{font-size:11px;color:#50617b;background:#f1f5fa;border:1px solid #e5ebf3;border-radius:9px;padding:5px 9px}
    .tag.peach{color:#ad6549;background:var(--peach-soft);border-color:#f8d9cc}
    .filter-bar{padding:26px 0 10px}
    .series-nav{background:#fff;border:1px solid var(--line);border-radius:18px;padding:13px;display:flex;gap:9px;align-items:center;box-shadow:var(--shadow-sm);overflow:auto}
    .series-nav a{white-space:nowrap;padding:10px 16px;border-radius:10px;color:var(--muted);font-size:13px}
    .series-nav a:hover,.series-nav a.active{background:var(--blue);color:#fff}
    .content-section{padding:48px 0 92px}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:19px}
    .section-heading h2{font-size:clamp(27px,3vw,38px);line-height:1.25;letter-spacing:-.04em;margin:10px 0 0}
    .section-heading p{font-size:13px;color:var(--muted);max-width:390px;margin:0}
    .info-list{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);overflow:hidden}
    .info-item{display:grid;grid-template-columns:58px minmax(0,1fr) 100px;gap:18px;align-items:center;padding:24px 26px;border-bottom:1px solid var(--line);transition:.2s}
    .info-item:last-child{border-bottom:0}
    .info-item:hover{background:#fbfdff}
    .item-number{font-size:13px;font-weight:800;color:#a1aec1}
    .item-title{font-size:18px;font-weight:800;margin:0 0 5px}
    .item-summary{font-size:13px;color:var(--muted);margin:0;max-width:610px}
    .item-meta{text-align:right;font-size:11px;color:#8a98ac}
    .item-meta strong{display:block;color:var(--blue);font-size:12px;margin-bottom:5px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow-sm);margin-bottom:18px}
    .side-card h3{font-size:18px;margin:0 0 17px}
    .side-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
    .dimension{margin:16px 0}
    .dimension-head{display:flex;justify-content:space-between;font-size:12px;margin-bottom:7px}
    .dimension-head span:last-child{color:var(--blue);font-weight:700}
    .bar{height:7px;background:#edf1f6;border-radius:99px;overflow:hidden}
    .bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#5d91e7,#9ebdf4)}
    .mini-list{padding:0;margin:0;list-style:none}
    .mini-list li{border-top:1px solid var(--line);padding:12px 0;font-size:12px;color:var(--muted)}
    .mini-list li b{display:block;color:var(--ink);margin-bottom:2px}
    .pagination{display:flex;justify-content:center;gap:8px;margin-top:25px}
    .page-dot{min-width:36px;height:36px;padding:0 10px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;font-size:12px}
    .page-dot.active,.page-dot:hover{background:var(--blue);border-color:var(--blue);color:#fff}
    .faq-section{padding:88px 0;background:#fff;border-top:1px solid var(--line)}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px}
    .faq-layout h2{font-size:clamp(28px,3vw,40px);line-height:1.25;letter-spacing:-.04em;margin:12px 0}
    .faq-layout>div>p{font-size:14px;color:var(--muted);max-width:330px}
    .faq-item{border-radius:14px;margin-bottom:10px;overflow:hidden;box-shadow:none}
    .faq-question{width:100%;border:0;background:#fff;text-align:left;padding:18px 20px;color:var(--ink);font-weight:700;display:flex;justify-content:space-between;align-items:center}
    .faq-question span:last-child{font-size:20px;color:var(--blue);font-weight:400}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:13px}
    .faq-item.open{background:var(--blue-soft);border-color:#c9dcfb}
    .faq-item.open .faq-answer{display:block}
    .cta-section{padding:82px 0}
    .contact-panel{background:#eaf3ff;border:1px solid #d5e5fb;border-radius:24px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:45px;box-shadow:var(--shadow-sm)}
    .contact-panel h2{font-size:clamp(28px,3vw,39px);line-height:1.25;letter-spacing:-.04em;margin:12px 0 14px}
    .contact-panel p{color:var(--muted);font-size:14px;max-width:450px}
    .trust-points{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
    .trust-points span{font-size:12px;background:#fff;color:#536985;border:1px solid #d7e4f6;border-radius:9px;padding:7px 10px}
    .contact-form{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px}
    .field{margin-bottom:14px}
    .field label{display:block;font-size:12px;font-weight:700;margin-bottom:6px}
    .field input,.field select{width:100%;height:42px;border:1px solid var(--line);border-radius:9px;padding:0 12px;color:var(--ink);background:#fff;outline:none}
    .field input:focus,.field select:focus{border-color:#8db0eb;box-shadow:0 0 0 3px rgba(40,100,215,.1)}
    .form-hint{font-size:11px;color:#8a98ac;margin:9px 0 0}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr .8fr;gap:35px}
    .footer-brand p{color:var(--muted);font-size:12px;max-width:270px;margin-top:17px}
    .footer-title{font-size:12px;font-weight:800;margin-bottom:13px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:12px;transition:.2s}
    .footer-links a:hover{color:var(--blue);transform:translateX(2px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:38px;padding-top:18px;color:#8a98ac;font-size:11px}
    @media(max-width:1024px){
      .brand{min-width:205px}.nav-shell{gap:14px}.search-box{width:120px}
      .hero-layout{gap:32px}.content-layout{grid-template-columns:1fr 270px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,600px)}
      .nav-shell{height:68px}.brand{min-width:0;flex:1}.nav-links{display:none}.nav-tools .search-box{width:42px;padding:0;justify-content:center}.search-box span,.search-box kbd{display:none}.nav-tools .btn{display:none}.menu-toggle{display:block}
      .page-hero{padding:42px 0 38px}.hero-layout{grid-template-columns:1fr;gap:26px}h1{font-size:38px}.hero-intro{font-size:15px}
      .content-section{padding:40px 0 64px}.content-layout,.faq-layout,.contact-panel{grid-template-columns:1fr;gap:25px}
      .section-heading{display:block}.section-heading p{margin-top:12px}
      .info-item{grid-template-columns:40px 1fr;gap:12px;padding:20px}.item-meta{grid-column:2;text-align:left}
      .faq-section,.cta-section{padding:62px 0}.contact-panel{padding:27px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.notice{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .brand-text{font-size:13px}.brand-text small{font-size:9px}.brand-mark{width:31px;height:31px}
      h1{font-size:32px}.hero-aside{padding:19px}.series-nav{border-radius:14px}
      .info-item{padding:18px 16px}.item-title{font-size:16px}.item-summary{font-size:12px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --ink:#15243d;--muted:#65738b;--blue:#2864d7;--blue-dark:#174aa9;
      --blue-soft:#edf4ff;--peach:#efaa8a;--peach-soft:#fff3ed;
      --line:#dfe7f2;--paper:#fff;--canvas:#f7faff;
      --shadow:0 18px 48px rgba(37,77,135,.10);--shadow-sm:0 8px 24px rgba(37,77,135,.08);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--canvas);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{text-decoration:none;color:inherit}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(247,250,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,231,242,.9)}
    .nav-shell{height:76px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:800;letter-spacing:-.03em}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(145deg,#2d70e5,#7da9f4);position:relative;box-shadow:0 7px 16px rgba(40,100,215,.24);flex:none}
    .brand-mark:after{content:"";position:absolute;width:11px;height:11px;border-radius:50%;background:#ffd0bd;right:6px;top:6px}
    .brand-text{font-size:15px;line-height:1.15}
    .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.08em;font-weight:600;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-link{font-size:13px;color:var(--muted);padding:9px 12px;border-radius:10px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .nav-tools{display:flex;align-items:center;gap:9px}
    .search-box{height:38px;width:142px;display:flex;align-items:center;gap:7px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#9aa7bb;font-size:12px}
    .search-box kbd{margin-left:auto;padding:1px 4px;border:1px solid var(--line);border-radius:4px;font-size:10px;background:#f8fafc}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:11px;padding:11px 17px;font-size:13px;font-weight:700;transition:.2s;border:1px solid transparent}
    .btn:focus-visible,.nav-link:focus-visible,.footer-links a:focus-visible{outline:3px solid rgba(40,100,215,.25);outline-offset:3px}
    .btn-primary{color:#fff;background:var(--blue);box-shadow:0 8px 18px rgba(40,100,215,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(40,100,215,.26)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#cbdafa}
    .btn-secondary:hover{background:var(--blue-soft);border-color:#a8c2f5}
    .text-link{color:var(--blue);font-size:13px;font-weight:700}
    .text-link:hover{text-decoration:underline}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--blue)}
    .page-hero{padding:62px 0 48px;background:#fff;border-bottom:1px solid var(--line)}
    .hero-layout{display:grid;grid-template-columns:1fr 390px;gap:64px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--peach);border-radius:5px}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.055em;margin:16px 0 19px;max-width:760px}
    .hero-copy{font-size:16px;color:var(--muted);max-width:690px;margin:0}
    .hero-aside{border-left:3px solid var(--peach);padding:8px 0 8px 22px;color:var(--muted);font-size:13px}
    .hero-aside strong{display:block;color:var(--ink);font-size:18px;margin-bottom:5px}
    .crumbs{padding:20px 0 0;color:#7b8aa1;font-size:12px}
    .crumbs a{color:var(--blue)}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}
    .section-head h2{font-size:clamp(27px,3.2vw,39px);line-height:1.25;letter-spacing:-.04em;margin:10px 0 0}
    .section-head p{color:var(--muted);font-size:14px;max-width:500px;margin:0}
    .filter-bar{display:flex;align-items:center;gap:10px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow-sm);overflow:auto;margin-bottom:24px}
    .filter-label{font-size:12px;color:var(--muted);font-weight:700;white-space:nowrap;padding:0 6px}
    .filter{white-space:nowrap;border:1px solid var(--line);background:#fff;border-radius:9px;color:var(--muted);padding:8px 13px;font-size:12px;transition:.2s}
    .filter:hover,.filter.active{background:var(--blue);border-color:var(--blue);color:#fff}
    .compare-layout{display:grid;grid-template-columns:1.5fr .72fr;gap:22px;align-items:start}
    .compare-panel,.side-panel,.scene-card,.faq-item,.consult-box{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
    .compare-panel{border-radius:22px;overflow:hidden}
    .panel-top{padding:25px 28px 20px;display:flex;justify-content:space-between;gap:20px;align-items:start}
    .panel-top h3{margin:0;font-size:21px}
    .panel-top p{margin:5px 0 0;color:var(--muted);font-size:12px}
    .status{font-size:11px;color:#ad6549;background:var(--peach-soft);border:1px solid #f8d9cc;border-radius:9px;padding:5px 9px;white-space:nowrap}
    .compare-table{width:100%;border-collapse:collapse}
    .compare-table th,.compare-table td{padding:16px 25px;text-align:left;border-top:1px solid var(--line);font-size:13px;vertical-align:top}
    .compare-table th{font-size:11px;color:#8290a5;font-weight:700;background:#fbfdff}
    .compare-table td:first-child{color:var(--blue);font-weight:800;width:25%}
    .compare-table td:nth-child(2){font-weight:700;width:31%}
    .compare-table td:nth-child(3){color:var(--muted)}
    .scale{display:flex;gap:4px;margin-top:8px}
    .scale i{display:block;width:22px;height:5px;border-radius:5px;background:#e5edf8}
    .scale i.on{background:#75a5ed}.scale i.warm{background:var(--peach)}
    .side-panel{border-radius:20px;padding:25px}
    .side-panel h3{font-size:18px;margin:0 0 6px}
    .side-panel>p{font-size:12px;color:var(--muted);margin:0 0 20px}
    .side-stat{padding:15px 0;border-top:1px solid var(--line)}
    .side-stat header{display:flex;justify-content:space-between;font-size:12px;margin-bottom:8px}
    .side-stat header span{color:var(--muted)}
    .side-stat header b{color:var(--blue)}
    .bar{height:6px;border-radius:8px;background:#e8eef7;overflow:hidden}
    .bar i{display:block;height:100%;background:var(--blue);border-radius:8px}
    .note-box{margin-top:18px;padding:14px;background:var(--blue-soft);border-radius:12px;color:#536b91;font-size:12px}
    .scenes{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:16px}
    .scene-card{border-radius:18px;padding:25px;min-height:190px;transition:.22s}
    .scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .scene-card.primary{grid-row:span 2;background:#173d82;color:#fff;border-color:#173d82}
    .scene-card.primary p,.scene-card.primary .scene-meta{color:#c8d8f3}
    .scene-no{font-size:11px;color:var(--blue);font-weight:800}
    .primary .scene-no{color:#9fc1ff}
    .scene-card h3{font-size:20px;margin:14px 0 8px}
    .scene-card p{font-size:13px;color:var(--muted);margin:0}
    .scene-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px;color:#7d8da4;font-size:11px}
    .scene-meta span{padding:5px 8px;border-radius:8px;background:#f1f5fa}
    .primary .scene-meta span{background:rgba(255,255,255,.1)}
    .insight{padding:22px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:130px 1fr 110px;gap:20px;align-items:center}
    .insight strong{font-size:14px}
    .insight p{font-size:13px;color:var(--muted);margin:0}
    .insight .badge{font-size:11px;color:var(--blue);background:var(--blue-soft);border-radius:8px;padding:6px 9px;text-align:center}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:64px}
    .faq-index h2{font-size:34px;line-height:1.3;margin:12px 0}
    .faq-index p{color:var(--muted);font-size:14px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
    .tag{font-size:11px;color:#50617b;background:#f1f5fa;border:1px solid #e5ebf3;border-radius:9px;padding:5px 9px}
    .tag.peach{color:#ad6549;background:var(--peach-soft);border-color:#f8d9cc}
    .faq-list{display:grid;gap:10px}
    .faq-item{border-radius:15px;overflow:hidden}
    .faq-item summary{list-style:none;padding:18px 20px;font-size:14px;font-weight:750;cursor:pointer;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--blue);font-size:18px;line-height:1}
    .faq-item[open] summary{color:var(--blue);background:var(--blue-soft)}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{padding:0 20px 19px;color:var(--muted);font-size:13px;background:var(--blue-soft)}
    .consult{padding:76px 0}
    .consult-box{border-radius:24px;padding:38px 42px;display:grid;grid-template-columns:1fr 1fr;gap:46px;background:#eef5ff}
    .consult-box h2{font-size:32px;line-height:1.3;margin:12px 0}
    .consult-box p{color:var(--muted);font-size:14px;max-width:450px}
    .trust{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
    .trust span{background:#fff;border:1px solid #d7e4f7;border-radius:9px;padding:7px 10px;font-size:11px;color:#5e7393}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:12px;font-weight:700;color:#50617b}
    .field input,.field select,.field textarea{width:100%;border:1px solid #d5e0ef;background:#fff;border-radius:10px;padding:11px 12px;color:var(--ink);outline:none;transition:.2s;font-size:13px}
    .field textarea{min-height:82px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#83a9ed;box-shadow:0 0 0 3px rgba(40,100,215,.11)}
    .form-tip{font-size:11px;color:#8190a5;margin:12px 0 0}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:var(--muted);font-size:12px;max-width:280px;margin-top:18px}
    .footer-title{font-size:13px;font-weight:800;margin-bottom:14px}
    .footer-links{display:grid;gap:9px;color:var(--muted);font-size:12px}
    .footer-links a:hover{color:var(--blue)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:37px;padding-top:18px;color:#8a98ab;font-size:11px}
    .notice{color:#9aa7b8}
    @media(max-width:1024px){
      .brand{min-width:205px}.hero-layout,.compare-layout,.faq-layout{grid-template-columns:1fr}
      .hero-aside{max-width:600px}.scenes{grid-template-columns:1fr 1fr}.scene-card.primary{grid-row:auto;grid-column:span 2}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}.nav-shell{height:68px;gap:10px}.brand{min-width:0;flex:1}
      .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}.nav-link{display:block}
      .search-box{width:40px;font-size:0;justify-content:center}.search-box kbd{display:none}.menu-toggle{display:block}
      .nav-tools .btn{display:none}.page-hero{padding:43px 0 35px}.section{padding:58px 0}.section-head{display:block}
      .section-head p{margin-top:14px}.compare-table{min-width:650px}.compare-panel{overflow:auto}.panel-top{padding:22px}
      .scenes{grid-template-columns:1fr}.scene-card.primary{grid-column:auto}.insight{grid-template-columns:1fr;gap:7px}
      .consult-box{grid-template-columns:1fr;padding:28px 22px;gap:26px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-bottom{display:block}.footer-bottom .notice{display:block;margin-top:9px}
    }
    @media(max-width:520px){
      h1{font-size:34px}.brand-text{font-size:13px}.brand-text small{font-size:9px}.hero-layout{gap:25px}
      .filter-bar{margin-left:-2px;margin-right:-2px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }