/* roulang page: index */
:root{
      --blue:#2f6bff;
      --blue-dark:#1f50cf;
      --blue-soft:#edf4ff;
      --mint:#16b8a6;
      --amber:#f3a847;
      --ink:#17233c;
      --muted:#68758a;
      --line:#e3eaf4;
      --bg:#f6f9fd;
      --white:#fff;
      --radius:16px;
      --shadow:0 8px 24px rgba(40,74,130,.08);
      --shadow-hover:0 14px 32px rgba(40,74,130,.14);
    }
    *,*::before,*::after{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;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,transform .2s ease}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(47,107,255,.28);outline-offset:3px}
    .site-header{height:82px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav-wrap{max-width:1220px;height:100%;margin:auto;padding:0 24px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}
    .nav-side{display:flex;align-items:center;gap:8px}
    .nav-side.right{justify-content:flex-end}
    .nav-link{padding:10px 14px;border-radius:9px;color:var(--muted);font-size:14px}
    .nav-link:hover{color:var(--blue);background:var(--blue-soft)}
    .nav-link.active{color:var(--blue);background:var(--blue-soft);font-weight:700;box-shadow:inset 0 -2px var(--blue)}
    .brand{text-align:center;white-space:nowrap}
    .brand strong{display:block;font-size:18px;line-height:1.2;letter-spacing:.5px;color:var(--ink)}
    .brand strong span{color:var(--blue)}
    .brand small{display:block;color:#93a0b4;font-size:10px;letter-spacing:2px;margin-top:3px}
    .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:8px;padding:7px 11px}
    .container{max-width:1220px;margin:0 auto;padding:0 24px}
    .section{padding:88px 0}
    .hero{padding:72px 0 58px;background:linear-gradient(180deg,#fff 0%,#f7faff 100%)}
    .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);font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase}
    .eyebrow::before,.section-kicker::before{content:"";width:22px;height:2px;background:var(--blue)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,4.2vw,50px);line-height:1.2;letter-spacing:-1.5px;margin:18px 0 20px;font-weight:800}
    h2{font-size:30px;line-height:1.3;margin:12px 0 14px;letter-spacing:-.5px}
    h3{font-size:18px;line-height:1.4;margin:0 0 9px}
    .hero-copy{font-size:16px;color:var(--muted);max-width:620px;line-height:1.9}
    .actions{display:flex;align-items:center;gap:20px;margin-top:28px}
    .button.primary-btn,.button.secondary-btn{border-radius:9px;padding:12px 22px;margin:0;font-weight:700;transition:all .2s ease}
    .primary-btn{background:var(--blue);color:#fff!important;box-shadow:0 7px 15px rgba(47,107,255,.2)}
    .primary-btn:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 11px 20px rgba(47,107,255,.26)}
    .secondary-btn{background:var(--white);border:1px solid var(--line);color:var(--ink)!important}
    .secondary-btn:hover{border-color:var(--blue);color:var(--blue)!important;transform:translateY(-2px)}
    .text-link{color:var(--blue);font-weight:700;font-size:14px}
    .text-link:hover{color:var(--blue-dark)}
    .hero-panel{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:25px;box-shadow:var(--shadow)}
    .panel-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:18px}
    .panel-title{font-weight:700}.status{color:var(--mint);font-size:12px;font-weight:700}
    .signal{height:8px;background:#edf2f8;border-radius:10px;overflow:hidden;margin:7px 0 17px}
    .signal i{display:block;height:100%;background:var(--blue);border-radius:10px}
    .panel-row{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px;padding:10px 0}
    .panel-row b{color:var(--ink);font-size:15px}
    .metrics{padding:0 0 35px}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .metric{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:21px;box-shadow:var(--shadow);position:relative}
    .metric::before{content:"";position:absolute;left:0;top:20px;width:3px;height:34px;background:var(--blue);border-radius:0 3px 3px 0}
    .metric-label{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
    .metric strong{font-size:30px;line-height:1;color:var(--ink);margin-right:5px}
    .metric-note{display:block;color:#93a0b4;font-size:12px;margin-top:10px}
    .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:30px}
    .section-head p{color:var(--muted);max-width:600px;margin:0}
    .matrix{background:#eef5ff}
    .matrix-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .matrix-main,.matrix-card,.compare-card,.faq-item,.form-card,.note-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .matrix-main{padding:30px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between}
    .matrix-main .number{font-size:48px;color:var(--blue);font-weight:800;line-height:1}
    .tag{display:inline-block;padding:4px 9px;border-radius:6px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700;margin-bottom:17px}
    .matrix-main p,.matrix-card p{color:var(--muted);font-size:14px;margin-bottom:16px}
    .matrix-stack{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .matrix-card{padding:21px;transition:transform .2s,box-shadow .2s}
    .matrix-card:hover,.matrix-main:hover,.compare-card:hover,.note-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .matrix-card .arrow{color:var(--blue);font-size:20px}
    .compare{background:#fff}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compare-card{padding:28px;transition:transform .2s,box-shadow .2s}
    .compare-card.after{border:2px solid #b9d0ff}
    .compare-card h3{display:flex;justify-content:space-between}
    .compare-card.after h3{color:var(--blue)}
    .compare-list{list-style:none;padding:0;margin:20px 0 0}
    .compare-list li{padding:11px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
    .compare-list li::before{content:"✓";color:var(--mint);font-weight:800;margin-right:9px}
    .compare-card.before .compare-list li::before{content:"—";color:#a5afbd}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px;align-items:start}
    .faq-intro p{color:var(--muted)}
    .faq-item{margin-bottom:12px;overflow:hidden}
    .faq-question{width:100%;background:#fff;border:0;padding:18px 20px;text-align:left;color:var(--ink);font-weight:700;display:flex;justify-content:space-between;cursor:pointer}
    .faq-question:hover{background:var(--blue-soft);color:var(--blue)}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question{background:var(--blue-soft);color:var(--blue)}
    .faq-question span:last-child{font-size:20px;line-height:1;transition:transform .2s}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-section{padding:75px 0}
    .cta-box{background:#eaf2ff;border:1px solid #d5e4ff;border-radius:20px;padding:36px}
    .cta-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:38px}
    .cta-box p{color:var(--muted)}
    .form-card{padding:25px}
    label{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}
    input,select,textarea{border:1px solid var(--line)!important;border-radius:8px!important;box-shadow:none!important;background:#fbfdff!important;color:var(--ink)!important}
    input:focus,select:focus,textarea:focus{border-color:var(--blue)!important;background:#fff!important}
    textarea{min-height:105px;resize:vertical}
    .checkline{display:flex;align-items:flex-start;gap:8px;color:var(--muted);font-size:12px;margin:2px 0 17px}
    .checkline input{margin-top:5px}
    .site-footer{border-top:1px solid var(--line);background:#fff;padding:31px 0;color:var(--muted)}
    .footer-grid{display:flex;justify-content:space-between;gap:25px;align-items:flex-start}
    .footer-brand strong{display:block;color:var(--ink);font-size:16px;margin-bottom:6px}
    .footer-brand p{font-size:12px;margin:0;max-width:430px}
    .footer-links{display:flex;flex-wrap:wrap;gap:16px;font-size:13px}
    .footer-links a:hover{color:var(--blue)}
    .legal{border-top:1px solid var(--line);margin-top:24px;padding-top:17px;font-size:12px;color:#8995a8}
    .notice{display:inline-flex;background:#fff8ea;color:#a76b16;padding:5px 9px;border-radius:6px;font-size:12px;margin-top:12px}
    @media(max-width:1023px){
      .hero-grid{grid-template-columns:1fr;gap:34px}.hero-panel{max-width:680px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .faq-layout,.cta-grid{grid-template-columns:1fr;gap:28px}
    }
    @media(max-width:639px){
      .site-header{height:auto;min-height:68px}.nav-wrap{display:flex;justify-content:space-between;padding:12px 20px;position:relative}
      .brand{text-align:left}.brand strong{font-size:15px}.brand small{font-size:9px}
      .menu-toggle{display:block;position:absolute;right:20px;top:14px;cursor:pointer}
      .nav-side{display:none;position:absolute;top:68px;left:20px;right:20px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow);z-index:30}
      .nav-side.right{display:none;justify-content:flex-start}
      .nav-wrap.menu-open .nav-side{display:flex;flex-direction:column;align-items:stretch}
      .nav-wrap.menu-open .nav-side.right{display:flex}
      .nav-link{display:block;padding:12px 14px;min-height:44px}
      .nav-wrap.menu-open .brand{opacity:.45}
      .container{padding-left:20px;padding-right:20px}
      .hero{padding:52px 0 38px}
      .section{padding:62px 0}
      h1{font-size:34px;letter-spacing:-1px}
      h2{font-size:26px}
      .hero-copy{font-size:15px}
      .actions{flex-wrap:wrap;gap:13px}
      .metric-grid,.matrix-grid,.matrix-stack,.compare-grid{grid-template-columns:1fr}
      .metric{padding:18px}
      .matrix-main{min-height:260px;padding:24px}
      .matrix-stack{gap:14px}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .cta-box{padding:24px 18px}
      .form-card{padding:19px}
      .footer-grid{display:block}
      .footer-links{margin-top:22px;gap:12px 18px}
    }
    @media(max-width:380px){
      h1{font-size:30px}
      .button.primary-btn,.button.secondary-btn{width:100%;text-align:center}
      .actions .text-link{width:100%;text-align:center}
    }

/* roulang page: category1 */
:root{
            --blue:#2f6bff;
            --blue-dark:#1f50cf;
            --blue-soft:#edf4ff;
            --mint:#16b8a6;
            --amber:#f3a847;
            --ink:#17233c;
            --muted:#68758a;
            --line:#e3eaf4;
            --bg:#f6f9fd;
            --white:#fff;
            --radius:16px;
            --shadow:0 8px 24px rgba(40,74,130,.08);
            --shadow-hover:0 14px 32px rgba(40,74,130,.14);
        }
        *{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;font-size:15px;line-height:1.75}
        a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,transform .2s ease}
        img{max-width:100%;display:block}
        button,input,select,textarea{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(47,107,255,.28);outline-offset:3px}
        .container{max-width:1220px;margin:0 auto;padding:0 24px}
        .site-header{height:82px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
        .nav-wrap{max-width:1220px;height:100%;margin:auto;padding:0 24px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}
        .nav-side{display:flex;align-items:center;gap:8px}
        .nav-side.right{justify-content:flex-end}
        .nav-link{padding:10px 14px;border-radius:9px;color:var(--muted);font-size:14px}
        .nav-link:hover{color:var(--blue);background:var(--blue-soft)}
        .nav-link.active{color:var(--blue);background:var(--blue-soft);font-weight:700;box-shadow:inset 0 -2px var(--blue)}
        .brand{text-align:center;white-space:nowrap}
        .brand strong{display:block;font-size:18px;line-height:1.2;letter-spacing:.5px;color:var(--ink)}
        .brand strong span{color:var(--blue)}
        .brand small{display:block;color:#93a0b4;font-size:10px;letter-spacing:2px;margin-top:3px}
        .menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:8px;padding:7px 11px}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(30px,4vw,46px);line-height:1.25;letter-spacing:-1px;margin-bottom:19px}
        h2{font-size:30px;line-height:1.3;margin-bottom:12px}
        h3{font-size:18px;line-height:1.4;margin-bottom:8px}
        .hero{padding:72px 0 58px;background:linear-gradient(180deg,#fff 0%,#f7faff 100%)}
        .hero-grid{display:grid;grid-template-columns:1fr .82fr;gap:65px;align-items:center}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:1.5px}
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--blue)}
        .hero-copy{font-size:16px;color:var(--muted);max-width:650px;line-height:1.9}
        .hero-actions{display:flex;align-items:center;gap:20px;margin-top:28px}
        .button.primary-btn,.button.secondary-btn{border-radius:9px;padding:12px 22px;margin:0;font-weight:700;transition:all .2s ease}
        .primary-btn{background:var(--blue);color:#fff!important;box-shadow:0 7px 15px rgba(47,107,255,.2)}
        .primary-btn:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 11px 20px rgba(47,107,255,.26)}
        .secondary-btn{background:var(--white);border:1px solid var(--line);color:var(--ink)!important}
        .secondary-btn:hover{border-color:var(--blue);color:var(--blue)!important;transform:translateY(-2px)}
        .text-link{color:var(--blue);font-weight:700;font-size:14px}
        .text-link:hover{color:var(--blue-dark)}
        .hero-panel,.filter-card,.result-card,.note-card,.empty-card{background:var(--white);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
        .hero-panel{padding:26px;position:relative;overflow:hidden}
        .hero-panel:after{content:"";position:absolute;width:150px;height:150px;border:1px solid #dbe8ff;border-radius:50%;right:-60px;bottom:-65px}
        .panel-title{font-weight:700;font-size:17px;margin-bottom:12px}
        .panel-row{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px;padding:12px 0;border-bottom:1px solid var(--line)}
        .panel-row:last-child{border-bottom:0}
        .panel-row b{color:var(--ink);font-size:15px}
        .status{display:inline-flex;align-items:center;gap:6px;color:var(--mint);font-weight:700}
        .status:before{content:"";width:7px;height:7px;background:var(--mint);border-radius:50%}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:24px}
        .section-head p{color:var(--muted);max-width:600px;margin:0}
        .index-layout{display:grid;grid-template-columns:1fr 290px;gap:22px;align-items:start}
        .filter-card{padding:22px}
        .filter-card h3{margin-bottom:18px}
        label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:7px}
        input,select,textarea{border:1px solid var(--line)!important;border-radius:8px!important;box-shadow:none!important;background:#fbfdff!important;color:var(--ink)!important;height:44px}
        input:focus,select:focus,textarea:focus{border-color:var(--blue)!important;background:#fff!important}
        .filter-card .button{width:100%;margin-top:6px}
        .quick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
        .tag{display:inline-block;padding:4px 9px;border-radius:6px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700}
        .tag.mint{background:#e8faf7;color:#0b887b}
        .tag.amber{background:#fff6e5;color:#a96b13}
        .result-list{display:flex;flex-direction:column;gap:14px}
        .result-card{padding:21px 23px;display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;transition:transform .2s,box-shadow .2s}
        .result-card:hover,.note-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
        .result-number{width:58px;height:58px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800}
        .result-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:12px;margin-bottom:7px}
        .result-card h3{margin-bottom:5px}
        .result-card p{color:var(--muted);font-size:14px;margin:0}
        .result-side{text-align:right;min-width:105px}
        .result-side small{display:block;color:var(--muted);font-size:12px;margin-top:5px}
        .note-card{padding:22px;margin-bottom:16px}
        .note-card h3{display:flex;justify-content:space-between;gap:10px}
        .note-card p,.note-card li{font-size:13px;color:var(--muted)}
        .note-card ul{padding-left:19px;margin-bottom:0}
        .note-icon{width:38px;height:38px;border-radius:10px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:16px}
        .pagination{margin:30px 0 0}
        .pagination li a,.pagination li span{border-radius:7px;margin-right:5px;color:var(--muted)}
        .pagination .current{background:var(--blue);border-radius:7px;padding:5px 10px}
        .empty-card{padding:35px;text-align:center;margin-top:14px}
        .empty-card .note-icon{margin:0 auto 12px}
        .empty-card p{color:var(--muted);margin-bottom:17px}
        .cta-section{padding:20px 0 86px}
        .cta-box{background:#eaf2ff;border:1px solid #d5e4ff;border-radius:20px;padding:35px}
        .cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:start}
        .cta-box p{color:var(--muted)}
        .form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
        textarea{min-height:95px;resize:vertical}
        .checkline{display:flex;gap:8px;align-items:flex-start;color:var(--muted);font-size:12px}
        .checkline input{height:auto;margin-top:5px}
        .form-card .button{margin-bottom:0}
        .site-footer{background:#fff;border-top:1px solid var(--line);padding:35px 0 20px}
        .footer-grid{display:flex;justify-content:space-between;gap:30px}
        .footer-brand strong{font-size:17px}
        .footer-brand p{color:var(--muted);font-size:13px;max-width:430px;margin:7px 0 0}
        .footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px 20px;align-content:flex-start}
        .footer-links a{font-size:13px;color:var(--muted)}
        .footer-links a:hover{color:var(--blue)}
        .legal{border-top:1px solid var(--line);margin-top:27px;padding-top:16px;color:#8b97a9;font-size:12px}
        @media(max-width:900px){
            .hero-grid,.cta-grid{grid-template-columns:1fr;gap:32px}
            .index-layout{grid-template-columns:1fr}
            .filter-card{order:-1}
            .filter-card .grid-x{display:flex}
        }
        @media(max-width:640px){
            .site-header{height:auto;min-height:70px}
            .nav-wrap{display:flex;justify-content:space-between;min-height:70px;padding:12px 20px;position:relative}
            .nav-side{display:none}
            .nav-side.open{display:flex;position:absolute;left:20px;right:20px;top:70px;background:#fff;padding:10px;box-shadow:var(--shadow-hover);border:1px solid var(--line);border-radius:12px;flex-direction:column;align-items:stretch;z-index:30}
            .nav-side.open .nav-link{min-height:44px}
            .brand{order:1;text-align:left}
            .menu-toggle{display:block;order:2}
            .brand strong{font-size:15px}
            .brand small{font-size:8px;letter-spacing:1px}
            .hero{padding:53px 0 42px}
            .container{padding:0 20px}
            .section{padding:60px 0}
            h1{font-size:31px}
            h2{font-size:25px}
            .hero-actions{align-items:stretch;flex-direction:column;gap:14px}
            .hero-actions .button{width:100%;text-align:center}
            .section-head{display:block;margin-bottom:22px}
            .section-head p{margin-top:10px}
            .result-card{grid-template-columns:48px 1fr;gap:14px;padding:17px}
            .result-number{width:48px;height:48px;font-size:17px}
            .result-side{grid-column:2;text-align:left;display:flex;gap:12px;align-items:center}
            .result-side small{margin:0}
            .filter-card .grid-x{display:block}
            .cta-box{padding:24px 18px}
            .footer-grid{display:block}
            .footer-links{justify-content:flex-start;margin-top:20px}
        }