/* roulang page: index */
:root{
      --st-primary:#151713;
      --st-secondary:#2E7D73;
      --st-accent:#B7824A;
      --st-base:#F7F4EE;
      --st-card:#FFFEFA;
      --st-soft:#ECE7DD;
      --st-dark:#111A17;
      --st-text:#3B3D38;
      --st-muted:#74776F;
      --st-line:rgba(21,23,19,.12);
      --st-line-strong:rgba(46,125,115,.32);
      --st-shadow:0 18px 60px rgba(21,23,19,.08);
      --st-shadow-hover:0 24px 72px rgba(21,23,19,.13);
      --st-radius-xl:32px;
      --st-radius-lg:24px;
      --st-radius-md:18px;
      --st-pill:999px;
      --st-container:1200px;
      --st-transition:220ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--st-text);
      background:
        radial-gradient(circle at 8% 12%, rgba(183,130,74,.12), transparent 28%),
        radial-gradient(circle at 88% 3%, rgba(46,125,115,.10), transparent 30%),
        var(--st-base);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--st-transition),border-color var(--st-transition),background var(--st-transition),transform var(--st-transition)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(46,125,115,.18);color:var(--st-primary)}
    .container{max-width:var(--st-container)}
    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      padding:14px 0;
      background:linear-gradient(180deg, rgba(247,244,238,.96), rgba(247,244,238,.72));
      backdrop-filter:blur(12px);
    }
    .site-nav{
      border:1px solid var(--st-line);
      border-radius:var(--st-pill);
      background:rgba(255,254,250,.82);
      box-shadow:0 12px 42px rgba(21,23,19,.06);
      padding:10px 14px;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--st-primary);
      font-weight:800;
      letter-spacing:.02em;
      white-space:normal;
      max-width:62%;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      position:relative;
      flex:0 0 42px;
      background:linear-gradient(135deg,var(--st-primary),#24332e);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),0 12px 26px rgba(17,26,23,.18);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:10px;
      bottom:10px;
      width:22px;
      height:18px;
      border-left:2px solid var(--st-accent);
      border-bottom:2px solid var(--st-accent);
      transform:skewX(-12deg);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      right:9px;
      top:9px;
      width:15px;
      height:15px;
      border:2px solid rgba(46,125,115,.9);
      border-radius:50%;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:17px;color:var(--st-primary)}
    .brand-text span{font-size:12px;color:var(--st-muted);font-weight:600}
    .navbar-toggler{
      border:1px solid var(--st-line);
      border-radius:14px;
      padding:9px 11px;
      box-shadow:none!important;
    }
    .navbar-toggler:focus{outline:3px solid rgba(46,125,115,.18)}
    .nav-link{
      color:var(--st-muted);
      font-weight:650;
      padding:10px 16px!important;
      border-radius:var(--st-pill);
    }
    .nav-link:hover,.nav-link:focus{color:var(--st-secondary);background:rgba(46,125,115,.08)}
    .nav-link.active{color:var(--st-primary);background:rgba(183,130,74,.12)}
    .nav-cta{margin-left:12px}
    .st-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:var(--st-pill);
      padding:12px 22px;
      border:1px solid transparent;
      font-weight:750;
      line-height:1.2;
      cursor:pointer;
      transition:transform var(--st-transition),box-shadow var(--st-transition),background var(--st-transition),border-color var(--st-transition),color var(--st-transition);
    }
    .st-btn .arrow{transition:transform var(--st-transition)}
    .st-btn:hover{transform:translateY(-2px)}
    .st-btn:hover .arrow{transform:translateX(3px)}
    .st-btn-primary{
      background:var(--st-primary);
      color:#fff;
      box-shadow:0 12px 28px rgba(21,23,19,.14);
    }
    .st-btn-primary:hover,.st-btn-primary:focus{background:var(--st-secondary);color:#fff;box-shadow:0 16px 34px rgba(46,125,115,.24)}
    .st-btn-secondary{
      background:rgba(255,254,250,.66);
      color:var(--st-primary);
      border-color:var(--st-line);
    }
    .st-btn-secondary:hover,.st-btn-secondary:focus{color:var(--st-secondary);border-color:var(--st-line-strong);background:#fff}
    .st-btn:focus,.form-control:focus,.accordion-button:focus{outline:3px solid rgba(46,125,115,.18);outline-offset:2px;box-shadow:none}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:var(--st-pill);
      background:rgba(46,125,115,.09);
      color:var(--st-primary);
      padding:7px 13px;
      font-size:13px;
      font-weight:750;
      margin-bottom:16px;
    }
    .section-kicker:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--st-secondary);
      box-shadow:0 0 0 5px rgba(46,125,115,.12);
    }
    .section-title{
      font-size:clamp(32px,4vw,46px);
      line-height:1.16;
      color:var(--st-primary);
      font-weight:800;
      letter-spacing:-.03em;
      margin:0 0 18px;
    }
    .section-lead{
      color:var(--st-muted);
      font-size:17px;
      max-width:720px;
      margin:0;
    }
    .hero{
      position:relative;
      padding:58px 0 100px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(21,23,19,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(21,23,19,.045) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,#000,transparent 80%);
      pointer-events:none;
    }
    .hero-shell{position:relative}
    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border:1px solid rgba(183,130,74,.28);
      background:rgba(255,254,250,.72);
      border-radius:var(--st-pill);
      padding:8px 14px;
      font-size:13px;
      font-weight:800;
      color:var(--st-primary);
      box-shadow:0 10px 28px rgba(21,23,19,.05);
    }
    .hero-title{
      margin:22px 0 20px;
      font-size:clamp(38px,5.8vw,66px);
      line-height:1.08;
      font-weight:850;
      letter-spacing:-.045em;
      color:var(--st-primary);
    }
    .hero-title em{
      font-style:normal;
      color:var(--st-secondary);
      position:relative;
    }
    .hero-copy{
      max-width:650px;
      color:var(--st-text);
      font-size:18px;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
    .hero-note{
      color:var(--st-muted);
      font-size:14px;
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .hero-note span{
      width:18px;
      height:18px;
      border-radius:50%;
      flex:0 0 18px;
      background:rgba(183,130,74,.16);
      color:var(--st-accent);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      font-size:12px;
      margin-top:3px;
    }
    .portal-panel{
      position:relative;
      border-radius:36px;
      min-height:520px;
      padding:22px;
      border:1px solid rgba(255,255,255,.34);
      background:
        linear-gradient(180deg,rgba(17,26,23,.18),rgba(17,26,23,.82)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat,
        linear-gradient(135deg,#22312d,#111A17);
      box-shadow:0 30px 90px rgba(17,26,23,.24);
      overflow:hidden;
    }
    .portal-panel:before{
      content:"";
      position:absolute;
      width:250px;
      height:250px;
      border-radius:50%;
      right:-70px;
      top:-70px;
      background:rgba(183,130,74,.24);
      filter:blur(4px);
      animation:slowFloat 8s ease-in-out infinite alternate;
    }
    @keyframes slowFloat{from{transform:translate3d(0,0,0)}to{transform:translate3d(-18px,16px,0)}}
    .panel-card{
      position:relative;
      z-index:1;
      background:rgba(255,254,250,.92);
      border:1px solid rgba(255,255,255,.38);
      border-radius:28px;
      padding:24px;
      box-shadow:0 20px 56px rgba(0,0,0,.16);
    }
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
    .status-dot{display:inline-flex;align-items:center;gap:8px;color:var(--st-secondary);font-weight:800;font-size:14px}
    .status-dot:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--st-secondary);box-shadow:0 0 0 6px rgba(46,125,115,.14)}
    .panel-title{font-size:24px;font-weight:850;color:var(--st-primary);margin-bottom:12px}
    .panel-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .panel-list li{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:13px 0;
      border-top:1px solid var(--st-line);
      color:var(--st-text);
      font-weight:650;
    }
    .panel-list b{
      width:28px;
      height:28px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(183,130,74,.12);
      color:var(--st-accent);
      flex:0 0 28px;
      font-size:13px;
    }
    .floating-metric{
      position:absolute;
      z-index:2;
      right:18px;
      bottom:22px;
      width:min(280px,calc(100% - 36px));
      border-radius:24px;
      background:rgba(17,26,23,.88);
      color:#fff;
      padding:18px;
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(10px);
    }
    .metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;text-align:center}
    .metric-grid strong{display:block;color:var(--st-accent);font-size:21px;line-height:1.2}
    .metric-grid span{display:block;color:rgba(255,255,255,.72);font-size:12px;margin-top:4px}
    .st-card{
      background:var(--st-card);
      border:1px solid var(--st-line);
      border-radius:var(--st-radius-lg);
      padding:28px;
      box-shadow:var(--st-shadow);
      transition:transform var(--st-transition),box-shadow var(--st-transition),border-color var(--st-transition),background var(--st-transition);
      height:100%;
    }
    .st-card:hover{transform:translateY(-3px);border-color:var(--st-line-strong);box-shadow:var(--st-shadow-hover)}
    .feature-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:28px;
      align-items:stretch;
      margin-top:38px;
    }
    .feature-main{
      border-radius:var(--st-radius-xl);
      padding:34px;
      background:
        linear-gradient(135deg,rgba(255,254,250,.94),rgba(236,231,221,.78)),
        url('/assets/images/coverpic/cover-2.webp') right bottom/48% auto no-repeat;
      min-height:360px;
    }
    .feature-main h3,.st-card h3{font-size:24px;font-weight:800;color:var(--st-primary);margin-bottom:12px}
    .feature-main p,.st-card p{color:var(--st-muted);margin:0}
    .feature-points{display:grid;gap:16px}
    .mini-card{
      display:flex;
      gap:16px;
      align-items:flex-start;
      padding:22px;
      border-radius:22px;
      background:rgba(255,254,250,.9);
      border:1px solid var(--st-line);
      transition:transform var(--st-transition),border-color var(--st-transition),box-shadow var(--st-transition);
    }
    .mini-card:hover{transform:translateY(-3px);border-color:var(--st-line-strong);box-shadow:var(--st-shadow)}
    .mini-icon{
      width:42px;
      height:42px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--st-secondary);
      background:rgba(46,125,115,.09);
      font-weight:850;
      flex:0 0 42px;
    }
    .mini-card h3{font-size:18px;margin:0 0 6px;color:var(--st-primary);font-weight:800}
    .mini-card p{font-size:14px;color:var(--st-muted);margin:0}
    .entry-card{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:center;
      border-radius:var(--st-radius-xl);
      overflow:hidden;
      background:var(--st-card);
      border:1px solid var(--st-line);
      box-shadow:var(--st-shadow);
      margin-top:34px;
    }
    .entry-image{
      min-height:330px;
      height:100%;
      background:
        linear-gradient(180deg,rgba(17,26,23,.05),rgba(17,26,23,.38)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat,
        var(--st-soft);
    }
    .entry-content{padding:36px}
    .entry-content h3{font-size:30px;line-height:1.2;color:var(--st-primary);font-weight:850;margin-bottom:14px}
    .entry-content p{color:var(--st-muted);margin-bottom:20px}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px}
    .st-tag{
      display:inline-flex;
      align-items:center;
      border-radius:var(--st-pill);
      background:rgba(46,125,115,.08);
      color:var(--st-primary);
      padding:7px 12px;
      font-size:13px;
      font-weight:750;
      border:1px solid rgba(46,125,115,.13);
    }
    .data-band{
      border-radius:34px;
      background:
        linear-gradient(135deg,rgba(17,26,23,.98),rgba(18,39,34,.96)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      padding:42px;
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .data-band:after{
      content:"";
      position:absolute;
      inset:auto -90px -120px auto;
      width:280px;
      height:280px;
      border-radius:50%;
      background:rgba(46,125,115,.28);
    }
    .data-item{position:relative;z-index:1}
    .data-item strong{
      display:block;
      color:var(--st-accent);
      font-size:38px;
      line-height:1;
      font-weight:850;
      margin-bottom:10px;
    }
    .data-item span{display:block;color:rgba(255,255,255,.76);font-size:15px}
    .scene-wrap{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:38px;
      align-items:start;
    }
    .scene-list{display:grid;gap:16px}
    .scene-card{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding:24px;
      border-radius:24px;
      background:var(--st-card);
      border:1px solid var(--st-line);
      box-shadow:0 12px 38px rgba(21,23,19,.05);
      transition:transform var(--st-transition),border-color var(--st-transition),box-shadow var(--st-transition);
    }
    .scene-card:hover{transform:translateY(-3px);border-color:var(--st-line-strong);box-shadow:var(--st-shadow)}
    .scene-label{font-size:12px;font-weight:850;color:var(--st-accent);letter-spacing:.04em;margin-bottom:8px}
    .scene-card h3{font-size:20px;color:var(--st-primary);font-weight:820;margin-bottom:8px}
    .scene-card p{margin:0;color:var(--st-muted)}
    .scene-arrow{align-self:center;color:var(--st-secondary);font-weight:900;transition:transform var(--st-transition)}
    .scene-card:hover .scene-arrow{transform:translateX(4px)}
    .process{
      position:relative;
      margin-top:44px;
    }
    .process:before{
      content:"";
      position:absolute;
      left:48px;
      right:48px;
      top:33px;
      height:1px;
      background:linear-gradient(90deg,rgba(183,130,74,.2),rgba(46,125,115,.34),rgba(183,130,74,.2));
    }
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
    .process-step{
      background:rgba(255,254,250,.84);
      border:1px solid var(--st-line);
      border-radius:24px;
      padding:22px;
      min-height:190px;
      box-shadow:0 12px 40px rgba(21,23,19,.05);
    }
    .step-num{
      width:66px;
      height:66px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      border:1px solid rgba(183,130,74,.42);
      background:var(--st-base);
      color:var(--st-accent);
      font-size:22px;
      font-weight:850;
      margin-bottom:18px;
    }
    .process-step h3{font-size:18px;color:var(--st-primary);font-weight:820;margin-bottom:8px}
    .process-step p{font-size:14px;color:var(--st-muted);margin:0}
    .insight-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:36px}
    .image-card{
      border-radius:var(--st-radius-xl);
      overflow:hidden;
      min-height:420px;
      background:
        linear-gradient(180deg,rgba(17,26,23,.06),rgba(17,26,23,.66)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
      position:relative;
      box-shadow:var(--st-shadow);
    }
    .image-card .caption{
      position:absolute;
      left:26px;
      right:26px;
      bottom:26px;
      color:#fff;
      background:rgba(17,26,23,.72);
      border:1px solid rgba(255,255,255,.12);
      border-radius:24px;
      padding:22px;
      backdrop-filter:blur(8px);
    }
    .image-card h3{font-size:23px;font-weight:850;margin-bottom:10px}
    .image-card p{margin:0;color:rgba(255,255,255,.78)}
    .check-list{display:grid;gap:14px;margin:0;padding:0;list-style:none}
    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:var(--st-text);
      padding:15px 0;
      border-bottom:1px solid var(--st-line);
    }
    .check-list li:before{
      content:"✓";
      width:24px;
      height:24px;
      flex:0 0 24px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(46,125,115,.1);
      color:var(--st-secondary);
      font-weight:900;
      margin-top:2px;
    }
    .accordion{display:grid;gap:14px;margin-top:34px}
    .accordion-item{
      border:1px solid var(--st-line)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:var(--st-card);
      box-shadow:0 10px 34px rgba(21,23,19,.045);
    }
    .accordion-button{
      background:var(--st-card);
      color:var(--st-primary);
      font-weight:800;
      font-size:17px;
      padding:22px 24px;
      box-shadow:none!important;
    }
    .accordion-button:not(.collapsed){
      background:rgba(46,125,115,.08);
      color:var(--st-primary);
      border-left:4px solid var(--st-secondary);
    }
    .accordion-body{
      padding:0 24px 24px 28px;
      color:var(--st-muted);
      background:rgba(255,254,250,.72);
    }
    .cta-box{
      border-radius:36px;
      background:
        radial-gradient(circle at 18% 16%,rgba(183,130,74,.24),transparent 28%),
        radial-gradient(circle at 84% 76%,rgba(46,125,115,.28),transparent 30%),
        var(--st-dark);
      color:#fff;
      padding:46px;
      box-shadow:0 28px 80px rgba(17,26,23,.22);
    }
    .cta-box h2{
      font-size:clamp(30px,4vw,44px);
      font-weight:850;
      line-height:1.16;
      margin-bottom:14px;
    }
    .cta-box p{color:rgba(255,255,255,.74);margin:0}
    .contact-form{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      border-radius:28px;
      padding:24px;
    }
    .form-label{font-weight:750;color:rgba(255,255,255,.9);font-size:14px}
    .form-control{
      border-radius:16px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.92);
      padding:12px 14px;
      color:var(--st-primary);
    }
    .form-control::placeholder{color:#8a8d86}
    .form-control:focus{border-color:var(--st-secondary);box-shadow:0 0 0 4px rgba(46,125,115,.16)}
    .site-footer{
      background:var(--st-dark);
      color:rgba(255,255,255,.76);
      padding:58px 0 26px;
      margin-top:24px;
    }
    .footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:16px;color:#fff;font-weight:850}
    .footer-brand .brand-mark{width:40px;height:40px;flex-basis:40px}
    .footer-title{color:#fff;font-weight:820;margin-bottom:14px;font-size:16px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .footer-links a{color:rgba(255,255,255,.68)}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.1);
      margin-top:34px;
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }
    @media (max-width:1199px){
      .portal-panel{min-height:480px}
      .process:before{display:none}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .feature-layout,.scene-wrap,.insight-grid{grid-template-columns:1fr}
    }
    @media (max-width:991px){
      .site-nav{border-radius:26px}
      .navbar-brand{max-width:78%}
      .navbar-collapse{
        margin-top:14px;
        padding-top:14px;
        border-top:1px solid var(--st-line);
      }
      .nav-cta{margin:12px 0 0}
      .nav-cta .st-btn{width:100%}
      .hero{padding:38px 0 78px}
      .entry-card{grid-template-columns:1fr}
      .entry-image{min-height:260px}
    }
    @media (max-width:767px){
      .section{padding:66px 0}
      .section-tight{padding:54px 0}
      .hero-title{letter-spacing:-.035em}
      .hero-actions .st-btn{width:100%}
      .portal-panel{min-height:500px;padding:16px;border-radius:28px}
      .floating-metric{left:16px;right:16px;width:auto}
      .feature-main{padding:26px;background-image:linear-gradient(135deg,rgba(255,254,250,.96),rgba(236,231,221,.86))}
      .data-band,.cta-box{padding:28px;border-radius:28px}
      .data-item{margin-bottom:20px}
      .process-grid{grid-template-columns:1fr}
      .process-step{min-height:auto}
      .image-card{min-height:360px}
      .entry-content{padding:26px}
      .brand-text strong{font-size:15px}
      .brand-text span{display:none}
    }
    @media (max-width:520px){
      .site-header{padding:10px 0}
      .site-nav{padding:8px 10px}
      .brand-mark{width:38px;height:38px;flex-basis:38px}
      .hero-badge{font-size:12px}
      .panel-top{align-items:flex-start;flex-direction:column}
      .metric-grid strong{font-size:18px}
      .st-card,.mini-card{padding:20px}
      .scene-card{flex-direction:column}
      .footer-bottom{display:block}
    }

/* roulang page: category1 */
:root{
      --st-ink:#151713;
      --st-deep:#111A17;
      --st-teal:#2E7D73;
      --st-copper:#B7824A;
      --st-base:#F7F4EE;
      --st-sand:#ECE7DD;
      --st-card:#FFFEFA;
      --st-text:#3B3D38;
      --st-muted:#74776F;
      --st-line:rgba(21,23,19,.12);
      --st-line-strong:rgba(46,125,115,.35);
      --st-shadow:0 18px 60px rgba(21,23,19,.08);
      --st-shadow-hover:0 24px 70px rgba(21,23,19,.12);
      --st-radius-lg:30px;
      --st-radius-md:22px;
      --st-radius-sm:16px;
      --st-speed:240ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--st-text);
      background:
        radial-gradient(circle at 8% 12%, rgba(183,130,74,.12), transparent 28%),
        radial-gradient(circle at 88% 6%, rgba(46,125,115,.10), transparent 32%),
        var(--st-base);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--st-speed),transform var(--st-speed),border-color var(--st-speed),background var(--st-speed)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(46,125,115,.18);color:var(--st-ink)}
    .container{max-width:1220px}
    .site-header{
      position:sticky;
      top:0;
      z-index:1040;
      padding:14px 0;
      background:linear-gradient(180deg, rgba(247,244,238,.96), rgba(247,244,238,.74));
      backdrop-filter:blur(12px);
    }
    .site-nav{
      min-height:74px;
      padding:12px 18px;
      border:1px solid var(--st-line);
      border-radius:999px;
      background:rgba(255,254,250,.82);
      box-shadow:0 10px 34px rgba(21,23,19,.06);
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-right:28px;
      color:var(--st-ink);
      min-width:245px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      position:relative;
      flex:0 0 auto;
      background:
        linear-gradient(135deg, rgba(46,125,115,.95), rgba(17,26,23,.96));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.18), 0 12px 26px rgba(17,26,23,.16);
      overflow:hidden;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      width:26px;
      height:26px;
      border:2px solid rgba(247,244,238,.88);
      border-left-color:transparent;
      border-bottom-color:rgba(183,130,74,.9);
      border-radius:50%;
      left:8px;
      top:8px;
      transform:rotate(-24deg);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      width:18px;
      height:2px;
      background:rgba(247,244,238,.92);
      left:12px;
      top:23px;
      box-shadow:5px -6px 0 rgba(183,130,74,.85);
      transform:skewX(-20deg);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.2;
    }
    .brand-text strong{
      font-size:17px;
      letter-spacing:.02em;
      color:var(--st-ink);
    }
    .brand-text span{
      margin-top:3px;
      font-size:12px;
      color:var(--st-muted);
    }
    .navbar-nav{gap:4px}
    .nav-link{
      color:rgba(21,23,19,.72);
      font-weight:650;
      font-size:15px;
      padding:10px 16px!important;
      border-radius:999px;
    }
    .nav-link:hover,.nav-link:focus{
      color:var(--st-teal);
      background:rgba(46,125,115,.08);
    }
    .nav-link.active{
      color:var(--st-ink)!important;
      background:rgba(183,130,74,.13);
    }
    .navbar-toggler{
      border:1px solid var(--st-line);
      border-radius:999px;
      padding:9px 12px;
      box-shadow:none!important;
    }
    .navbar-toggler:focus{outline:3px solid rgba(46,125,115,.18)}
    .navbar-toggler-icon{
      width:1.35em;
      height:1.35em;
      background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2821,23,19,.78%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M5 8h20M5 15h20M5 22h20'/%3e%3c/svg%3e");
    }
    .nav-cta{margin-left:16px}
    .st-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      border:1px solid transparent;
      padding:12px 22px;
      font-weight:750;
      font-size:15px;
      line-height:1.2;
      transition:transform var(--st-speed),box-shadow var(--st-speed),background var(--st-speed),border-color var(--st-speed),color var(--st-speed);
      cursor:pointer;
      white-space:nowrap;
    }
    .st-btn .arrow{display:inline-block;transition:transform var(--st-speed)}
    .st-btn:hover .arrow{transform:translateX(3px)}
    .st-btn-primary{
      background:var(--st-ink);
      color:#fff;
      box-shadow:0 12px 28px rgba(21,23,19,.16);
    }
    .st-btn-primary:hover,.st-btn-primary:focus{
      background:var(--st-teal);
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 16px 34px rgba(46,125,115,.22);
    }
    .st-btn-secondary{
      background:rgba(255,254,250,.72);
      color:var(--st-ink);
      border-color:var(--st-line);
    }
    .st-btn-secondary:hover,.st-btn-secondary:focus{
      color:var(--st-teal);
      border-color:var(--st-line-strong);
      transform:translateY(-2px);
      background:#fff;
    }
    .st-btn:focus-visible,.form-control:focus-visible,a:focus-visible{
      outline:3px solid rgba(46,125,115,.22);
      outline-offset:3px;
    }
    .section{padding:96px 0}
    .section-tight{padding:68px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:18px;
      padding:8px 13px;
      border-radius:999px;
      border:1px solid rgba(46,125,115,.18);
      background:rgba(46,125,115,.08);
      color:var(--st-ink);
      font-size:13px;
      font-weight:750;
    }
    .eyebrow:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--st-copper);
      box-shadow:0 0 0 5px rgba(183,130,74,.12);
    }
    h1,h2,h3{color:var(--st-ink);letter-spacing:-.03em}
    h1{
      font-size:clamp(36px,5vw,58px);
      line-height:1.12;
      font-weight:820;
      margin:0 0 18px;
    }
    h2{
      font-size:clamp(30px,3.4vw,42px);
      line-height:1.18;
      font-weight:790;
      margin:0 0 16px;
    }
    h3{
      font-size:clamp(21px,2vw,25px);
      line-height:1.28;
      font-weight:730;
      margin:0 0 10px;
    }
    p{margin:0;color:var(--st-text)}
    .lead{
      font-size:18px;
      color:rgba(59,61,56,.86);
      max-width:760px;
    }
    .muted{color:var(--st-muted)}
    .page-hero{
      padding:54px 0 34px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border-radius:var(--st-radius-lg);
      padding:42px;
      background:
        linear-gradient(105deg, rgba(255,254,250,.95) 0%, rgba(255,254,250,.88) 52%, rgba(17,26,23,.76) 100%),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border:1px solid var(--st-line);
      box-shadow:var(--st-shadow);
    }
    .hero-shell:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(21,23,19,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(21,23,19,.055) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(90deg,#000 0%, rgba(0,0,0,.85) 58%, transparent 100%);
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:1}
    .breadcrumb{
      margin-bottom:18px;
      font-size:14px;
      --bs-breadcrumb-divider-color:rgba(21,23,19,.38);
    }
    .breadcrumb a{color:var(--st-muted);font-weight:650}
    .breadcrumb a:hover{color:var(--st-teal)}
    .breadcrumb .active{color:var(--st-ink);font-weight:750}
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .st-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      padding:8px 12px;
      background:rgba(183,130,74,.10);
      border:1px solid rgba(183,130,74,.18);
      color:var(--st-ink);
      font-size:13px;
      font-weight:700;
    }
    .verify-panel{
      position:relative;
      padding:24px;
      border-radius:24px;
      background:rgba(17,26,23,.88);
      color:#fff;
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 24px 58px rgba(17,26,23,.18);
    }
    .verify-panel .panel-title{
      display:flex;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
      font-weight:780;
    }
    .status-dot{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:rgba(255,255,255,.82);
      font-size:13px;
    }
    .status-dot:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:#7FC9A8;
      box-shadow:0 0 0 6px rgba(127,201,168,.14);
    }
    .verify-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .verify-list li{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
      border-top:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.75);
      font-size:14px;
    }
    .verify-list strong{color:#fff;font-weight:750}
    .st-card{
      position:relative;
      border:1px solid var(--st-line);
      border-radius:var(--st-radius-md);
      background:var(--st-card);
      box-shadow:0 10px 38px rgba(21,23,19,.055);
      transition:transform var(--st-speed),box-shadow var(--st-speed),border-color var(--st-speed),background var(--st-speed);
    }
    .st-card:hover{
      transform:translateY(-3px);
      border-color:var(--st-line-strong);
      box-shadow:var(--st-shadow-hover);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-head p{max-width:680px}
    .intro-card{
      padding:30px;
      overflow:hidden;
    }
    .intro-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:26px;
      align-items:center;
    }
    .image-frame{
      min-height:290px;
      border-radius:24px;
      overflow:hidden;
      background:linear-gradient(135deg, rgba(46,125,115,.18), rgba(183,130,74,.16));
      position:relative;
    }
    .image-frame img{
      width:100%;
      height:100%;
      min-height:290px;
      object-fit:cover;
      filter:saturate(.92) contrast(1.02);
    }
    .image-frame:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 38%, rgba(17,26,23,.42));
    }
    .fact-strip{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:24px;
    }
    .fact{
      padding:16px;
      border-radius:18px;
      background:rgba(236,231,221,.64);
      border:1px solid var(--st-line);
    }
    .fact strong{
      display:block;
      color:var(--st-copper);
      font-size:24px;
      line-height:1.1;
      margin-bottom:6px;
    }
    .fact span{
      display:block;
      color:var(--st-muted);
      font-size:13px;
      line-height:1.55;
    }
    .guide-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 350px;
      gap:28px;
      align-items:start;
    }
    .content-stack{display:grid;gap:22px}
    .guide-card{
      padding:26px;
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:18px;
      align-items:start;
    }
    .guide-no{
      width:42px;
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      border:1px solid rgba(183,130,74,.42);
      color:var(--st-copper);
      font-weight:820;
      background:rgba(183,130,74,.08);
    }
    .guide-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:10px;
    }
    .mini-badge{
      display:inline-flex;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(46,125,115,.08);
      color:var(--st-teal);
      font-size:12px;
      font-weight:760;
    }
    .guide-card p{color:var(--st-muted)}
    .guide-arrow{
      width:38px;
      height:38px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(21,23,19,.06);
      color:var(--st-ink);
      font-weight:800;
      transition:transform var(--st-speed),background var(--st-speed),color var(--st-speed);
    }
    .guide-card:hover .guide-arrow{
      transform:translateX(4px);
      background:var(--st-teal);
      color:#fff;
    }
    .side-panel{
      position:sticky;
      top:116px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:24px;
      border-radius:24px;
      border:1px solid var(--st-line);
      background:rgba(255,254,250,.82);
      box-shadow:0 12px 42px rgba(21,23,19,.055);
    }
    .side-title{
      color:var(--st-ink);
      font-weight:800;
      margin-bottom:14px;
      font-size:17px;
    }
    .quick-links,.check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .quick-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:10px 0;
      border-bottom:1px solid rgba(21,23,19,.08);
      color:var(--st-muted);
      font-weight:650;
    }
    .quick-links a:hover{color:var(--st-teal)}
    .check-list li{
      position:relative;
      padding-left:28px;
      color:var(--st-muted);
      font-size:14px;
    }
    .check-list li:before{
      content:"✓";
      position:absolute;
      left:0;
      top:0;
      width:18px;
      height:18px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(46,125,115,.12);
      color:var(--st-teal);
      font-size:12px;
      font-weight:900;
    }
    .process-wrap{
      border-radius:var(--st-radius-lg);
      background:var(--st-deep);
      padding:34px;
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .process-wrap:before{
      content:"";
      position:absolute;
      width:280px;
      height:280px;
      border-radius:50%;
      right:-90px;
      top:-130px;
      background:rgba(46,125,115,.22);
      filter:blur(4px);
    }
    .process-wrap h2,.process-wrap h3{color:#fff}
    .process-wrap p{color:rgba(255,255,255,.72)}
    .timeline{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      margin-top:28px;
      z-index:1;
    }
    .step{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
    }
    .step-num{
      display:inline-flex;
      width:34px;
      height:34px;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      border:1px solid rgba(183,130,74,.58);
      color:#F3C28A;
      font-weight:820;
      margin-bottom:14px;
    }
    .risk-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
    }
    .risk-card{
      padding:28px;
      min-height:100%;
    }
    .risk-card ul{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .risk-card li{
      padding-left:26px;
      position:relative;
      color:var(--st-muted);
    }
    .risk-card li:before{
      content:"";
      position:absolute;
      left:0;
      top:.75em;
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--st-copper);
    }
    .accordion{display:grid;gap:12px}
    .accordion-item{
      border:1px solid var(--st-line)!important;
      border-radius:20px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 8px 26px rgba(21,23,19,.04);
    }
    .accordion-button{
      padding:20px 22px;
      color:var(--st-ink);
      font-weight:780;
      background:#fff;
      box-shadow:none!important;
      line-height:1.45;
    }
    .accordion-button:not(.collapsed){
      color:var(--st-ink);
      background:rgba(46,125,115,.08);
    }
    .accordion-button:focus{
      border-color:transparent;
      box-shadow:0 0 0 3px rgba(46,125,115,.18)!important;
    }
    .accordion-button::after{
      width:28px;
      height:28px;
      border-radius:50%;
      background-color:rgba(21,23,19,.06);
      background-position:center;
      background-size:14px;
    }
    .accordion-body{
      padding:0 22px 22px;
      color:var(--st-muted);
    }
    .contact-box{
      border-radius:var(--st-radius-lg);
      background:
        linear-gradient(135deg, rgba(17,26,23,.97), rgba(21,23,19,.94)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color:#fff;
      padding:42px;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--st-shadow);
    }
    .contact-box h2{color:#fff}
    .contact-box p{color:rgba(255,255,255,.72)}
    .consult-form{
      display:grid;
      gap:14px;
      padding:24px;
      border-radius:24px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .form-label{
      color:rgba(255,255,255,.86);
      font-weight:700;
      font-size:14px;
      margin-bottom:6px;
    }
    .form-control{
      border-radius:16px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.92);
      color:var(--st-ink);
      padding:12px 14px;
      box-shadow:none!important;
    }
    .form-control:focus{
      border-color:rgba(46,125,115,.85);
      box-shadow:0 0 0 4px rgba(46,125,115,.18)!important;
    }
    .form-note{
      font-size:13px;
      color:rgba(255,255,255,.62);
      line-height:1.6;
    }
    .site-footer{
      padding:58px 0 28px;
      background:var(--st-deep);
      color:rgba(255,255,255,.76);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:20px;
      font-weight:820;
      margin-bottom:16px;
    }
    .site-footer p{
      color:rgba(255,255,255,.66);
      max-width:480px;
    }
    .footer-title{
      color:#fff;
      font-weight:780;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.64);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      margin-top:38px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.52);
      font-size:13px;
    }
    @media (max-width:1199px){
      .site-nav{border-radius:28px}
      .guide-layout{grid-template-columns:1fr}
      .side-panel{position:static;grid-template-columns:repeat(3,1fr)}
      .timeline{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:991px){
      .navbar-brand{min-width:auto}
      .navbar-collapse{
        margin-top:14px;
        padding-top:14px;
        border-top:1px solid var(--st-line);
      }
      .navbar-nav{align-items:stretch!important}
      .nav-link{padding:12px 14px!important}
      .nav-cta{margin:12px 0 4px}
      .nav-cta .st-btn{width:100%}
      .hero-shell{padding:30px}
      .verify-panel{margin-top:24px}
      .intro-grid{grid-template-columns:1fr}
      .side-panel{grid-template-columns:1fr}
      .risk-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .section-head p{margin-top:10px}
    }
    @media (max-width:767px){
      .site-header{padding:10px 0}
      .site-nav{padding:10px 12px;border-radius:24px}
      .brand-text strong{font-size:15px}
      .brand-text span{font-size:11px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .page-hero{padding:34px 0 24px}
      .hero-shell,.contact-box{padding:24px;border-radius:24px}
      .section{padding:64px 0}
      .section-tight{padding:48px 0}
      .lead{font-size:16px}
      .tag-row{gap:8px}
      .fact-strip{grid-template-columns:1fr}
      .guide-card{
        grid-template-columns:1fr;
        gap:12px;
        padding:22px;
      }
      .guide-arrow{justify-self:start}
      .timeline{grid-template-columns:1fr}
      .process-wrap{padding:24px;border-radius:24px}
      .contact-box .row{gap:24px}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{padding-left:18px;padding-right:18px}
      .st-btn{width:100%;padding:13px 18px}
      .d-flex.btn-group-responsive{flex-direction:column}
      .breadcrumb{font-size:13px}
      .verify-list li{display:block}
      .verify-list strong{display:block;margin-bottom:4px}
    }