/* roulang page: index */
:root{
      --bg: #fbf6f1;
      --bg-soft: #f5ede6;
      --surface: #fffaf7;
      --surface-2: #ffffff;
      --primary: #8f3139;
      --primary-strong: #6f1f27;
      --primary-soft: rgba(143, 49, 57, .12);
      --accent: #c89459;
      --accent-soft: rgba(200, 148, 89, .16);
      --text: #2f2522;
      --text-2: #5f524b;
      --muted: #7c6d66;
      --line: #eadfd6;
      --shadow: 0 18px 50px rgba(74, 43, 37, .08);
      --shadow-sm: 0 8px 24px rgba(74, 43, 37, .06);
      --radius: 20px;
      --radius-sm: 16px;
      --radius-lg: 28px;
      --container: 1260px;
      --transition: all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(143,49,57,.08), transparent 24%),
        radial-gradient(circle at top right, rgba(200,148,89,.10), transparent 18%),
        linear-gradient(180deg, #fdfaf7 0%, var(--bg) 100%);
      line-height:1.7;
      overflow-x:hidden;
    }

    a{color:inherit;text-decoration:none;transition:var(--transition)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(143,49,57,.18);color:var(--primary-strong)}
    .container-xl{max-width:var(--container)}
    .page-wrap{position:relative}
    .page-wrap:before,
    .page-wrap:after{
      content:"";
      position:fixed;
      inset:auto;
      width:520px;
      height:520px;
      border-radius:50%;
      filter:blur(24px);
      opacity:.28;
      pointer-events:none;
      z-index:-1;
    }
    .page-wrap:before{
      left:-180px; top:120px;
      background:radial-gradient(circle, rgba(143,49,57,.22), rgba(143,49,57,0) 70%);
    }
    .page-wrap:after{
      right:-200px; top:620px;
      background:radial-gradient(circle, rgba(200,148,89,.18), rgba(200,148,89,0) 70%);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(255,250,247,.92);
      backdrop-filter:saturate(120%) blur(10px);
      border-bottom:1px solid rgba(234,223,214,.92);
      transition:var(--transition);
    }
    .site-header.is-scrolled{
      box-shadow:0 8px 30px rgba(74, 43, 37, .06);
    }
    .navbar{
      padding:1rem 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:.82rem;
      min-width:0;
    }
    .brand-mark{
      width:46px;height:46px;
      border-radius:16px;
      background:
        linear-gradient(145deg, var(--primary), #a54a4f 52%, #d39a64);
      box-shadow:0 12px 28px rgba(143,49,57,.22);
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:800;
      letter-spacing:.08em;
      font-size:1rem;
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-title{
      font-weight:800;
      letter-spacing:.02em;
      line-height:1.1;
      font-size:1rem;
      color:var(--text);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-sub{
      font-size:.78rem;
      color:var(--muted);
      margin-top:.16rem;
    }

    .nav-desktop{
      display:flex;
      align-items:center;
      gap:.38rem;
      margin:0 auto;
      padding:0 .5rem;
      border:1px solid rgba(234,223,214,.9);
      background:rgba(255,255,255,.72);
      border-radius:999px;
      box-shadow:0 8px 20px rgba(74,43,37,.04);
    }
    .nav-desktop .nav-link{
      color:var(--text-2);
      font-weight:600;
      font-size:.95rem;
      padding:.72rem 1rem;
      border-radius:999px;
      transition:var(--transition);
      white-space:nowrap;
    }
    .nav-desktop .nav-link:hover,
    .nav-desktop .nav-link:focus{
      color:var(--primary);
      background:rgba(143,49,57,.07);
    }
    .nav-desktop .nav-link.active,
    .nav-desktop .nav-link[aria-current="page"]{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-strong));
      box-shadow:0 10px 18px rgba(143,49,57,.22);
    }

    .btn-brand,
    .btn-brand-ghost{
      border-radius:999px;
      font-weight:700;
      padding:.85rem 1.3rem;
      transition:var(--transition);
      border:1px solid transparent;
    }
    .btn-brand{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), #a24a4f 55%, #c88455);
      box-shadow:0 12px 26px rgba(143,49,57,.24);
    }
    .btn-brand:hover,
    .btn-brand:focus{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 16px 32px rgba(143,49,57,.28);
    }
    .btn-brand-ghost{
      color:var(--primary);
      background:rgba(143,49,57,.06);
      border-color:rgba(143,49,57,.12);
    }
    .btn-brand-ghost:hover,
    .btn-brand-ghost:focus{
      color:var(--primary-strong);
      background:rgba(143,49,57,.1);
      transform:translateY(-1px);
    }
    .btn-outline-brand{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(143,49,57,.22);
      border-radius:999px;
      font-weight:700;
      padding:.85rem 1.3rem;
    }
    .btn-outline-brand:hover,
    .btn-outline-brand:focus{
      color:#fff;
      background:var(--primary);
      border-color:var(--primary);
      transform:translateY(-1px);
    }
    .btn:focus,
    .form-control:focus,
    .form-select:focus{
      box-shadow:0 0 0 .2rem rgba(143,49,57,.15);
      border-color:rgba(143,49,57,.4);
    }

    .menu-trigger{
      border:none;
      width:46px;height:46px;
      border-radius:14px;
      background:rgba(143,49,57,.08);
      color:var(--primary);
      display:grid;
      place-items:center;
      transition:var(--transition);
    }
    .menu-trigger:hover{
      background:rgba(143,49,57,.12);
      transform:translateY(-1px);
    }
    .offcanvas{
      background:linear-gradient(180deg,#fffdfb 0%, #faf3ee 100%);
      border-left:1px solid rgba(234,223,214,.85);
    }
    .offcanvas .offcanvas-header{
      border-bottom:1px solid rgba(234,223,214,.85);
    }
    .offcanvas .nav-link{
      padding:1rem 1.1rem;
      border-radius:14px;
      font-weight:700;
      color:var(--text);
      margin-bottom:.35rem;
    }
    .offcanvas .nav-link:hover,
    .offcanvas .nav-link:focus{
      background:rgba(143,49,57,.07);
      color:var(--primary);
    }
    .offcanvas .nav-link.active{
      background:linear-gradient(135deg, var(--primary), var(--primary-strong));
      color:#fff;
    }

    .hero{
      padding:5.2rem 0 2.4rem;
      position:relative;
    }
    .hero-shell{
      background:
        linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.74)),
        linear-gradient(135deg, rgba(143,49,57,.05), rgba(200,148,89,.05));
      border:1px solid rgba(234,223,214,.9);
      border-radius:32px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-shell:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 88% 16%, rgba(143,49,57,.12), transparent 20%),
        radial-gradient(circle at 12% 84%, rgba(200,148,89,.10), transparent 18%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      padding:2.2rem;
    }
    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      border-radius:999px;
      padding:.45rem .85rem;
      background:rgba(143,49,57,.08);
      color:var(--primary-strong);
      font-weight:700;
      font-size:.86rem;
      margin-bottom:1rem;
    }
    .hero h1{
      font-size:clamp(2.15rem, 4vw, 3.35rem);
      font-weight:900;
      line-height:1.12;
      letter-spacing:-.02em;
      margin:0 0 1rem;
      color:var(--text);
    }
    .hero-lead{
      font-size:1.04rem;
      color:var(--text-2);
      max-width:34rem;
      margin-bottom:1.5rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:.8rem;
      margin-bottom:1.5rem;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:.55rem;
      margin-top:1.2rem;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      padding:.48rem .75rem;
      border-radius:999px;
      font-size:.86rem;
      color:var(--text-2);
      background:rgba(255,255,255,.82);
      border:1px solid rgba(234,223,214,.88);
    }
    .tag i{color:var(--primary)}
    .hero-panel{
      position:relative;
      padding:1.2rem;
      height:100%;
    }
    .hero-panel-card{
      height:100%;
      background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,250,247,.95));
      border:1px solid rgba(234,223,214,.95);
      border-radius:28px;
      box-shadow:var(--shadow-sm);
      padding:1.3rem;
    }
    .panel-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:1rem;
      margin-bottom:1rem;
    }
    .panel-title{
      font-size:1.02rem;
      font-weight:800;
      margin:0;
    }
    .panel-note{
      font-size:.84rem;
      color:var(--muted);
    }
    .panel-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:.9rem;
      margin-top:1rem;
    }
    .mini-metric{
      padding:1rem;
      border-radius:18px;
      background:linear-gradient(180deg, #fff, #fff8f4);
      border:1px solid rgba(234,223,214,.95);
    }
    .mini-metric .num{
      font-size:1.5rem;
      font-weight:900;
      color:var(--primary);
      line-height:1;
    }
    .mini-metric .label{
      margin-top:.35rem;
      font-size:.88rem;
      font-weight:700;
      color:var(--text);
    }
    .mini-metric .desc{
      margin-top:.22rem;
      font-size:.8rem;
      color:var(--muted);
      line-height:1.5;
    }
    .progress-wrap{
      margin-top:1rem;
      padding:1rem;
      border-radius:18px;
      background:rgba(143,49,57,.04);
      border:1px solid rgba(143,49,57,.08);
    }
    .progress-line{
      height:10px;
      border-radius:999px;
      background:#efe6df;
      overflow:hidden;
    }
    .progress-line span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, var(--primary), #a74f53 55%, var(--accent));
    }
    .progress-list{
      display:grid;
      gap:.8rem;
      margin-top:.9rem;
    }
    .progress-item{
      display:flex;
      align-items:center;
      gap:.8rem;
    }
    .progress-item .label{
      flex:0 0 5.5rem;
      font-size:.82rem;
      color:var(--muted);
    }
    .progress-item .progress-line{flex:1}
    .progress-item .value{
      flex:0 0 2.2rem;
      text-align:right;
      font-size:.82rem;
      color:var(--primary-strong);
      font-weight:700;
    }

    .section{
      padding:1.4rem 0 5.2rem;
    }
    .section-soft{
      background:linear-gradient(180deg, rgba(255,255,255,.18), rgba(255,255,255,.0));
    }
    .section-heading{
      margin-bottom:1.5rem;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      font-size:.84rem;
      font-weight:800;
      color:var(--primary-strong);
      text-transform:none;
      letter-spacing:.04em;
      margin-bottom:.55rem;
    }
    .eyebrow:before{
      content:"";
      width:28px;
      height:2px;
      background:linear-gradient(90deg, var(--primary), var(--accent));
      border-radius:999px;
      display:inline-block;
    }
    .section-title{
      font-size:clamp(1.65rem, 2.4vw, 2.35rem);
      font-weight:900;
      line-height:1.18;
      margin:0;
      color:var(--text);
    }
    .section-subtitle{
      margin:.7rem 0 0;
      font-size:1rem;
      color:var(--text-2);
      max-width:54rem;
    }

    .kpi-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:1rem;
    }
    .kpi-card,
    .surface-card,
    .compare-card,
    .faq-card,
    .form-card,
    .note-card{
      background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,250,247,.98));
      border:1px solid rgba(234,223,214,.96);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
    }
    .kpi-card{
      padding:1.25rem;
      min-height:100%;
      transition:var(--transition);
    }
    .kpi-card:hover,
    .surface-card:hover,
    .compare-card:hover,
    .faq-card:hover,
    .form-card:hover,
    .note-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
      border-color:rgba(143,49,57,.18);
    }
    .kpi-icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:rgba(143,49,57,.08);
      color:var(--primary);
      font-size:1.2rem;
      margin-bottom:.95rem;
    }
    .kpi-number{
      font-size:2rem;
      font-weight:900;
      line-height:1;
      color:var(--primary-strong);
      margin-bottom:.35rem;
    }
    .kpi-label{
      font-size:1rem;
      font-weight:800;
      margin-bottom:.35rem;
    }
    .kpi-desc{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.6;
    }

    .service-grid{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:1rem;
    }
    .service-card{
      padding:1.35rem;
      min-height:100%;
      position:relative;
      overflow:hidden;
      transition:var(--transition);
    }
    .service-card:after{
      content:"";
      position:absolute;
      inset:auto -38px -38px auto;
      width:120px;
      height:120px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(200,148,89,.16), transparent 68%);
      pointer-events:none;
    }
    .service-card.feature{
      grid-column:span 6;
      min-height:100%;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .service-card.small{
      grid-column:span 3;
    }
    .service-card.wide{
      grid-column:span 4;
    }
    .service-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:1rem;
      margin-bottom:1rem;
    }
    .service-title{
      margin:0;
      font-size:1.2rem;
      font-weight:900;
      line-height:1.25;
    }
    .service-desc{
      margin:.7rem 0 0;
      color:var(--text-2);
      font-size:.95rem;
      line-height:1.7;
    }
    .service-meta{
      display:flex;
      flex-wrap:wrap;
      gap:.45rem;
      margin-top:1rem;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      padding:.34rem .64rem;
      border-radius:999px;
      font-size:.78rem;
      font-weight:700;
      color:var(--primary-strong);
      background:var(--primary-soft);
    }
    .chip.gold{
      color:#8f6533;
      background:var(--accent-soft);
    }
    .service-footer{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      margin-top:1.25rem;
    }
    .service-link{
      font-weight:800;
      color:var(--primary);
      display:inline-flex;
      align-items:center;
      gap:.35rem;
    }
    .service-link:hover{
      color:var(--primary-strong);
      gap:.5rem;
    }

    .compare-card{
      padding:1.4rem;
    }
    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:1rem;
    }
    .compare-box{
      border-radius:18px;
      padding:1.15rem;
      border:1px solid rgba(234,223,214,.96);
      background:#fff;
      min-height:100%;
    }
    .compare-box.bad{
      background:linear-gradient(180deg, #fff, #fff9f7);
    }
    .compare-box.good{
      background:linear-gradient(180deg, #fff, #fff8f2);
      border-color:rgba(143,49,57,.16);
    }
    .compare-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:.8rem;
      margin-bottom:.9rem;
    }
    .compare-head h3{
      margin:0;
      font-size:1.05rem;
      font-weight:900;
    }
    .compare-head .badge{
      border-radius:999px;
      padding:.4rem .65rem;
      font-weight:700;
    }
    .compare-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:.7rem;
    }
    .compare-list li{
      display:flex;
      gap:.7rem;
      align-items:flex-start;
      color:var(--text-2);
      font-size:.95rem;
      line-height:1.65;
    }
    .compare-list li i{
      color:var(--primary);
      margin-top:.18rem;
      flex:0 0 auto;
    }
    .compare-summary{
      margin-top:1rem;
      padding-top:1rem;
      border-top:1px dashed rgba(234,223,214,.95);
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:.8rem;
    }
    .summary-item{
      border-radius:16px;
      background:rgba(143,49,57,.05);
      padding:.95rem;
    }
    .summary-item .label{
      font-size:.82rem;
      color:var(--muted);
      margin-bottom:.28rem;
    }
    .summary-item .value{
      font-size:1.05rem;
      font-weight:900;
      color:var(--primary-strong);
    }

    .note-card{
      padding:1.25rem;
      margin-top:1rem;
    }

    .faq-card{
      overflow:hidden;
    }
    .accordion-item{
      border:0;
      border-bottom:1px solid rgba(234,223,214,.9);
      background:transparent;
    }
    .accordion-item:last-child{border-bottom:0}
    .accordion-button{
      background:transparent;
      padding:1.05rem 1.2rem;
      font-weight:800;
      color:var(--text);
      box-shadow:none;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary-strong);
      background:rgba(143,49,57,.05);
      box-shadow:none;
    }
    .accordion-button:focus{
      box-shadow:none;
      border-color:transparent;
    }
    .accordion-button::after{
      background-size:1rem;
    }
    .accordion-body{
      color:var(--text-2);
      padding:0 1.2rem 1.15rem;
      line-height:1.8;
    }

    .form-card{
      padding:1.35rem;
    }
    .form-side{
      height:100%;
      padding:1.35rem;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(143,49,57,.06), rgba(200,148,89,.06));
      border:1px solid rgba(234,223,214,.95);
      box-shadow:var(--shadow-sm);
    }
    .form-side h3{
      font-size:1.2rem;
      font-weight:900;
      margin-bottom:.8rem;
    }
    .benefit-list{
      list-style:none;
      padding:0;
      margin:1rem 0 0;
      display:grid;
      gap:.85rem;
    }
    .benefit-list li{
      display:flex;
      gap:.75rem;
      align-items:flex-start;
      color:var(--text-2);
      line-height:1.65;
    }
    .benefit-list i{
      color:var(--primary);
      margin-top:.15rem;
    }
    .form-label{
      font-size:.92rem;
      color:var(--text);
      font-weight:700;
      margin-bottom:.5rem;
    }
    .form-control,
    .form-select{
      border-radius:16px;
      border:1px solid #e4d8cf;
      padding:.92rem 1rem;
      background:#fff;
      color:var(--text);
    }
    .form-control::placeholder{
      color:#a1938d;
    }
    .helper{
      font-size:.86rem;
      color:var(--muted);
      margin-top:.55rem;
    }
    .notice{
      display:none;
      margin-top:1rem;
      padding:1rem 1.1rem;
      border-radius:16px;
      background:rgba(46, 125, 50, .08);
      border:1px solid rgba(46, 125, 50, .16);
      color:#2b6a31;
      font-weight:700;
    }
    .notice.show{display:flex;gap:.65rem;align-items:flex-start}

    .footer{
      margin-top:3rem;
      padding:2.6rem 0 1.6rem;
      border-top:1px solid rgba(234,223,214,.9);
      background:linear-gradient(180deg, rgba(255,255,255,.32), rgba(255,250,247,.86));
    }
    .footer-card{
      border-radius:28px;
      border:1px solid rgba(234,223,214,.95);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow-sm);
      padding:1.6rem;
    }
    .footer-title{
      font-size:1rem;
      font-weight:900;
      margin-bottom:.8rem;
    }
    .footer-text{
      color:var(--text-2);
      font-size:.95rem;
      line-height:1.75;
      margin:0;
    }
    .footer-links{
      display:grid;
      gap:.55rem;
    }
    .footer-links a{
      color:var(--text-2);
      font-weight:600;
    }
    .footer-links a:hover{
      color:var(--primary);
      transform:translateX(2px);
    }
    .copyright{
      margin-top:1rem;
      padding-top:1rem;
      border-top:1px solid rgba(234,223,214,.9);
      font-size:.88rem;
      color:var(--muted);
      display:flex;
      flex-wrap:wrap;
      gap:.5rem;
      justify-content:space-between;
      align-items:center;
    }

    .mobile-cta{
      position:fixed;
      left:0; right:0; bottom:0;
      z-index:1040;
      padding:.7rem .9rem calc(.7rem + env(safe-area-inset-bottom));
      background:rgba(255,250,247,.96);
      backdrop-filter:blur(10px);
      border-top:1px solid rgba(234,223,214,.92);
      box-shadow:0 -10px 30px rgba(74,43,37,.06);
    }
    .mobile-cta .btn{
      width:100%;
      padding:.9rem 1rem;
    }
    .mobile-cta .btn + .btn{
      margin-left:.6rem;
    }

    .section-anchor{scroll-margin-top:96px}

    @media (max-width: 1199.98px){
      .hero-inner{padding:2rem}
      .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .service-card.feature{grid-column:span 12}
      .service-card.small{grid-column:span 4}
      .service-card.wide{grid-column:span 6}
    }

    @media (max-width: 991.98px){
      .nav-desktop{display:none}
      .hero{padding-top:3.5rem}
      .hero-inner{padding:1.6rem}
      .panel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .compare-grid{grid-template-columns:1fr}
      .compare-summary{grid-template-columns:1fr}
      .service-card.feature,
      .service-card.small,
      .service-card.wide{grid-column:span 12}
    }

    @media (max-width: 767.98px){
      .hero{
        padding:2.6rem 0 1.4rem;
      }
      .hero h1{
        font-size:clamp(1.9rem, 8vw, 2.55rem);
      }
      .hero-lead{
        font-size:.98rem;
      }
      .hero-actions{
        flex-direction:column;
      }
      .hero-actions .btn{
        width:100%;
      }
      .panel-grid,
      .kpi-grid{
        grid-template-columns:1fr;
      }
      .section{
        padding:1rem 0 4rem;
      }
      .section-title{
        font-size:1.55rem;
      }
      .service-grid{
        gap:.9rem;
      }
      .footer-card{
        padding:1.3rem;
      }
      .footer .col-md-4 + .col-md-4{
        margin-top:1rem;
      }
      body{
        padding-bottom:92px;
      }
    }

    @media (max-width: 575.98px){
      .navbar{
        padding:.82rem 0;
      }
      .brand-mark{
        width:42px;height:42px;
        border-radius:14px;
      }
      .brand-title{
        font-size:.96rem;
      }
      .hero-shell{
        border-radius:24px;
      }
      .hero-inner{
        padding:1.25rem;
      }
      .hero-tags{
        gap:.4rem;
      }
      .tag{
        width:100%;
        justify-content:flex-start;
      }
      .btn-brand,
      .btn-brand-ghost,
      .btn-outline-brand{
        width:100%;
      }
      .service-card,
      .kpi-card,
      .compare-card,
      .faq-card,
      .form-card,
      .form-side{
        border-radius:18px;
      }
      .accordion-button{
        padding:.95rem 1rem;
      }
      .accordion-body{
        padding:0 1rem 1rem;
      }
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    .fade-up{
      animation:fadeUp .8s ease both;
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(14px)}
      to{opacity:1;transform:translateY(0)}
    }

/* roulang page: category1 */
:root{
      --brand:#7f1d2d;
      --brand-2:#a33a45;
      --brand-dark:#53131f;
      --gold:#c58b45;
      --gold-soft:#f5e5c7;
      --champagne:#fff7ea;
      --bg:#fbf7f1;
      --bg-2:#f4ede4;
      --surface:#ffffff;
      --surface-warm:#fffaf3;
      --text:#2a2421;
      --muted:#746861;
      --light-muted:#9a8d84;
      --border:#e7d9cc;
      --border-2:#dac7b7;
      --shadow:0 18px 48px rgba(86,38,31,.10);
      --shadow-sm:0 10px 26px rgba(86,38,31,.08);
      --radius:20px;
      --radius-sm:14px;
      --radius-lg:28px;
      --container:1240px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 6%, rgba(197,139,69,.13), transparent 26%),
        radial-gradient(circle at 90% 12%, rgba(127,29,45,.10), transparent 30%),
        linear-gradient(180deg,var(--bg),#fff 42%,var(--bg));
      line-height:1.7;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font-family:inherit}
    button{transition:var(--ease)}
    ::selection{background:rgba(127,29,45,.16);color:var(--brand-dark)}

    .container-xl{max-width:var(--container)}
    .section{padding:84px 0}
    .section-sm{padding:62px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:34px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand);
      background:rgba(127,29,45,.08);
      border:1px solid rgba(127,29,45,.12);
      border-radius:999px;
      padding:7px 13px;
      font-weight:700;
      font-size:13px;
      letter-spacing:.02em;
      margin-bottom:14px;
    }
    .eyebrow i{color:var(--gold)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(34px,4.2vw,52px);
      line-height:1.12;
      letter-spacing:-.04em;
      font-weight:900;
      color:var(--text);
      margin-bottom:18px;
    }
    h2{
      font-size:clamp(28px,3vw,38px);
      line-height:1.2;
      letter-spacing:-.03em;
      font-weight:900;
      margin-bottom:12px;
    }
    h3{font-size:21px;font-weight:850;letter-spacing:-.02em;margin-bottom:10px}
    .lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.75;
      max-width:760px;
    }
    .subtext{color:var(--muted);font-size:15px;line-height:1.75}
    .text-gold{color:var(--gold)}
    .soft-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:22px 0}

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,250,243,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(218,199,183,.72);
      box-shadow:0 8px 28px rgba(70,35,26,.05);
    }
    .navbar{padding:14px 0}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      font-size:20px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2) 62%,var(--gold));
      box-shadow:0 12px 26px rgba(127,29,45,.22);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-title{
      font-size:16px;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--brand-dark);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:270px;
    }
    .brand-sub{font-size:12px;color:var(--muted);margin-top:3px}
    .nav-desktop{
      align-items:center;
      gap:6px;
      margin-left:auto;
      margin-right:18px;
      padding:5px;
      background:rgba(255,255,255,.58);
      border:1px solid rgba(231,217,204,.78);
      border-radius:999px;
    }
    .nav-desktop .nav-link{
      color:#594c45;
      font-size:14px;
      font-weight:750;
      padding:9px 15px;
      border-radius:999px;
      position:relative;
    }
    .nav-desktop .nav-link:hover{
      color:var(--brand);
      background:rgba(127,29,45,.07);
    }
    .nav-desktop .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 10px 22px rgba(127,29,45,.18);
    }
    .btn{
      border-radius:999px;
      font-weight:800;
      letter-spacing:-.01em;
      padding:11px 19px;
      transition:var(--ease);
    }
    .btn-brand{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      border:1px solid transparent;
      box-shadow:0 14px 28px rgba(127,29,45,.20);
    }
    .btn-brand:hover,.btn-brand:focus{
      color:#fff;
      transform:translateY(-2px);
      background:linear-gradient(135deg,var(--brand-dark),var(--brand));
      box-shadow:0 18px 34px rgba(127,29,45,.26);
    }
    .btn-outline-brand{
      color:var(--brand);
      background:#fffaf5;
      border:1px solid rgba(127,29,45,.25);
    }
    .btn-outline-brand:hover,.btn-outline-brand:focus{
      color:#fff;
      background:var(--brand);
      border-color:var(--brand);
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(127,29,45,.16);
    }
    .btn-light-brand{
      color:var(--brand-dark);
      background:var(--gold-soft);
      border:1px solid rgba(197,139,69,.22);
    }
    .btn-light-brand:hover{
      background:#efd29c;
      transform:translateY(-2px);
    }
    .menu-trigger{
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:#fffaf4;
      color:var(--brand);
      display:grid;
      place-items:center;
    }
    .menu-trigger:hover{background:rgba(127,29,45,.07)}

    .offcanvas{
      background:var(--surface-warm);
      color:var(--text);
    }
    .offcanvas-header{border-bottom:1px solid var(--border)}
    .mobile-nav a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:15px 4px;
      border-bottom:1px solid rgba(231,217,204,.75);
      color:var(--text);
      font-weight:800;
    }
    .mobile-nav a.active{color:var(--brand)}
    .mobile-nav a:hover{color:var(--brand);padding-left:8px}

    .breadcrumb-wrap{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      font-size:14px;
      color:var(--muted);
      margin-bottom:18px;
    }
    .breadcrumb-wrap a{color:var(--brand);font-weight:800}
    .breadcrumb-wrap span{color:var(--light-muted)}

    .category-hero{
      position:relative;
      padding:72px 0 48px;
      overflow:hidden;
    }
    .category-hero:before{
      content:"";
      position:absolute;
      inset:18px 0 auto auto;
      width:420px;
      height:420px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(197,139,69,.18),transparent 68%);
      pointer-events:none;
    }
    .hero-panel{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(231,217,204,.86);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel:after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-90px;
      width:220px;
      height:220px;
      background:linear-gradient(135deg,rgba(127,29,45,.12),rgba(197,139,69,.15));
      border-radius:46% 54% 48% 52%;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .stat-board{
      background:linear-gradient(180deg,#fff,#fff7ec);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      padding:24px;
      height:100%;
      position:relative;
      overflow:hidden;
    }
    .stat-board:before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:5px;
      background:linear-gradient(90deg,var(--brand),var(--gold),var(--brand-2));
    }
    .stat-list{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-top:18px;
    }
    .stat-item{
      background:#fff;
      border:1px solid rgba(231,217,204,.9);
      border-radius:18px;
      padding:17px;
    }
    .stat-num{
      font-size:27px;
      font-weight:950;
      color:var(--brand);
      line-height:1;
      margin-bottom:7px;
    }
    .stat-label{color:var(--muted);font-size:13px;font-weight:650}
    .trend-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:18px;
      padding:14px;
      background:rgba(127,29,45,.06);
      border-radius:16px;
      color:var(--brand-dark);
      font-weight:800;
      font-size:14px;
    }
    .trend-line{
      flex:1;
      height:8px;
      border-radius:999px;
      background:rgba(197,139,69,.22);
      overflow:hidden;
    }
    .trend-line span{
      display:block;
      height:100%;
      width:78%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--brand),var(--gold));
    }

    .filter-card,.summary-card,.compare-card,.faq-card,.contact-card{
      background:rgba(255,255,255,.78);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
    }
    .filter-card{padding:24px}
    .filter-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      margin-bottom:18px;
    }
    .search-box{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:260px;
      background:#fffaf4;
      border:1px solid var(--border);
      border-radius:999px;
      padding:10px 15px;
      color:var(--muted);
    }
    .search-box input{
      border:0;
      outline:0;
      background:transparent;
      width:100%;
      color:var(--text);
      font-weight:650;
    }
    .search-box:focus-within{
      border-color:rgba(127,29,45,.45);
      box-shadow:0 0 0 4px rgba(127,29,45,.08);
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .pill-tag{
      border:1px solid rgba(127,29,45,.15);
      background:#fffaf4;
      color:#6d4c45;
      border-radius:999px;
      padding:9px 14px;
      font-size:14px;
      font-weight:800;
      cursor:pointer;
      transition:var(--ease);
    }
    .pill-tag:hover,.pill-tag.active{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      border-color:transparent;
      box-shadow:0 12px 22px rgba(127,29,45,.16);
      transform:translateY(-1px);
    }

    .content-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }
    .content-card{
      position:relative;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:0 12px 30px rgba(86,38,31,.07);
      transition:var(--ease);
      min-height:100%;
    }
    .content-card:hover{
      transform:translateY(-6px);
      box-shadow:0 22px 48px rgba(86,38,31,.13);
      border-color:rgba(197,139,69,.42);
    }
    .thumb{
      height:154px;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(127,29,45,.90),rgba(163,58,69,.78) 52%,rgba(197,139,69,.72)),
        radial-gradient(circle at 20% 20%,rgba(255,255,255,.26),transparent 36%);
    }
    .thumb:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:18px;
    }
    .thumb-pattern{
      position:absolute;
      inset:auto 18px 18px 18px;
      display:flex;
      gap:7px;
      align-items:flex-end;
    }
    .thumb-pattern span{
      flex:1;
      border-radius:999px;
      background:rgba(255,255,255,.38);
    }
    .thumb-pattern span:nth-child(1){height:26px}
    .thumb-pattern span:nth-child(2){height:46px}
    .thumb-pattern span:nth-child(3){height:34px}
    .thumb-pattern span:nth-child(4){height:58px}
    .card-body-custom{padding:23px}
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--brand);
      background:rgba(127,29,45,.08);
      border:1px solid rgba(127,29,45,.12);
      border-radius:999px;
      padding:6px 10px;
      font-size:12px;
      font-weight:850;
      margin-bottom:14px;
    }
    .card-title{
      font-size:20px;
      line-height:1.34;
      font-weight:900;
      letter-spacing:-.02em;
      margin-bottom:10px;
      color:var(--text);
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
      padding-top:16px;
      border-top:1px solid rgba(231,217,204,.8);
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .meta-item{
      display:inline-flex;
      align-items:center;
      gap:5px;
    }

    .summary-card{padding:28px}
    .summary-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:center;
    }
    .summary-list{
      display:grid;
      gap:13px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .summary-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      background:#fffaf4;
      border:1px solid rgba(231,217,204,.82);
      border-radius:16px;
      padding:14px 15px;
      color:var(--muted);
    }
    .summary-list i{
      color:var(--gold);
      font-size:18px;
      margin-top:2px;
      flex:0 0 auto;
    }
    .sort-panel{
      background:linear-gradient(180deg,#fff,var(--champagne));
      border:1px solid var(--border);
      border-radius:20px;
      padding:22px;
    }
    .sort-line{
      display:flex;
      justify-content:space-between;
      gap:10px;
      padding:12px 0;
      border-bottom:1px solid rgba(231,217,204,.82);
      color:var(--muted);
    }
    .sort-line:last-child{border-bottom:0}
    .sort-line strong{color:var(--brand-dark)}

    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
    }
    .compare-card{
      padding:28px;
      overflow:hidden;
      position:relative;
    }
    .compare-card.before{background:#fff}
    .compare-card.after{
      background:linear-gradient(145deg,#fff7ec,#fff);
      border-color:rgba(197,139,69,.35);
    }
    .compare-card h3{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .compare-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .compare-list li{
      display:flex;
      gap:10px;
      color:var(--muted);
      font-weight:650;
    }
    .compare-list i{margin-top:3px}
    .before i{color:#b08b7b}
    .after i{color:var(--brand)}

    .accordion{
      --bs-accordion-border-color:var(--border);
      --bs-accordion-border-radius:18px;
      --bs-accordion-inner-border-radius:18px;
      --bs-accordion-btn-focus-box-shadow:0 0 0 4px rgba(127,29,45,.08);
      --bs-accordion-active-bg:#fff3e0;
      --bs-accordion-active-color:var(--brand-dark);
    }
    .accordion-item{
      background:#fff;
      border:1px solid var(--border)!important;
      border-radius:18px!important;
      margin-bottom:12px;
      overflow:hidden;
      box-shadow:0 8px 20px rgba(86,38,31,.05);
    }
    .accordion-button{
      font-weight:900;
      color:var(--text);
      padding:19px 22px;
      background:#fff;
    }
    .accordion-button:not(.collapsed){box-shadow:none}
    .accordion-body{
      color:var(--muted);
      padding:0 22px 20px;
      line-height:1.75;
    }

    .contact-section{padding-bottom:90px}
    .contact-card{
      padding:34px;
      background:
        linear-gradient(135deg,rgba(127,29,45,.96),rgba(119,34,43,.92) 56%,rgba(160,94,50,.90)),
        radial-gradient(circle at 82% 20%,rgba(255,255,255,.18),transparent 32%);
      color:#fff;
      border:0;
      box-shadow:0 24px 58px rgba(127,29,45,.24);
      overflow:hidden;
      position:relative;
    }
    .contact-card:after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-100px;
      width:300px;
      height:300px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.16);
    }
    .contact-card .lead,.contact-card .subtext{color:rgba(255,255,255,.78)}
    .form-card{
      position:relative;
      z-index:1;
      background:rgba(255,255,255,.96);
      border-radius:22px;
      padding:24px;
      color:var(--text);
      box-shadow:0 16px 36px rgba(44,16,20,.16);
    }
    .form-label{font-weight:850;color:var(--brand-dark);font-size:14px}
    .form-control{
      border-radius:14px;
      border:1px solid var(--border);
      padding:12px 14px;
      background:#fffaf4;
      color:var(--text);
    }
    .form-control:focus{
      border-color:rgba(127,29,45,.48);
      box-shadow:0 0 0 4px rgba(127,29,45,.08);
      background:#fff;
    }

    .footer{
      padding:44px 0 30px;
      background:linear-gradient(180deg,#fffaf4,#f2e7dc);
      border-top:1px solid var(--border);
    }
    .footer-card{
      background:rgba(255,255,255,.70);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:32px;
      box-shadow:var(--shadow-sm);
    }
    .footer-title{
      font-size:16px;
      font-weight:950;
      color:var(--brand-dark);
      margin-bottom:12px;
    }
    .footer-text{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      margin-bottom:0;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      font-weight:750;
    }
    .footer-links a:hover{color:var(--brand);padding-left:4px}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:var(--light-muted);
      font-size:13px;
      padding-top:22px;
      margin-top:24px;
      border-top:1px solid rgba(231,217,204,.82);
    }

    @media (max-width:1199.98px){
      .brand-title{max-width:220px}
      .section{padding:72px 0}
      .content-grid{gap:18px}
      .card-body-custom{padding:20px}
    }
    @media (max-width:991.98px){
      .category-hero{padding:52px 0 34px}
      .hero-panel{padding:28px}
      .content-grid{grid-template-columns:repeat(2,1fr)}
      .summary-grid,.compare-grid{grid-template-columns:1fr}
      .filter-top{align-items:flex-start;flex-direction:column}
      .search-box{width:100%;min-width:0}
      .section-head{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:767.98px){
      body{font-size:15px}
      .section{padding:58px 0}
      .section-sm{padding:46px 0}
      .lead{font-size:16px}
      .hero-panel,.stat-board,.summary-card,.contact-card,.footer-card{border-radius:22px;padding:24px}
      .stat-list{grid-template-columns:1fr}
      .content-grid{grid-template-columns:1fr}
      .thumb{height:138px}
      .hero-actions .btn{width:100%;justify-content:center}
      .filter-card{padding:20px}
      .contact-card{padding:26px}
      .form-card{padding:20px}
      .copyright{flex-direction:column}
    }
    @media (max-width:575.98px){
      .navbar{padding:11px 0}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-title{max-width:190px;font-size:14px}
      .brand-sub{font-size:11px}
      h1{font-size:32px}
      h2{font-size:27px}
      .pill-tag{width:calc(50% - 5px);text-align:center;padding:9px 8px}
      .stat-num{font-size:24px}
      .card-title{font-size:19px}
      .btn{width:100%;justify-content:center}
      .footer-card{padding:22px}
    }